From d9cc531e3bc62cfe7965c8cb3df7b1d510f3f4a2 Mon Sep 17 00:00:00 2001
From: Paul Kulchenko <paul@kulchenko.com>
Date: Fri, 18 Mar 2022 02:23:09 -0700
Subject: [PATCH 01/62] Fixe an issue with aux buffer init overwriting optional
 parameters in receive() (#334)

Fixes use on Lua >= 5.4.3
---
 src/buffer.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/buffer.c b/src/buffer.c
index ac5c531..7148be3 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -103,11 +103,14 @@ int buffer_meth_send(lua_State *L, p_buffer buf) {
 * object:receive() interface
 \*-------------------------------------------------------------------------*/
 int buffer_meth_receive(lua_State *L, p_buffer buf) {
-    int err = IO_DONE, top = lua_gettop(L);
+    int err = IO_DONE, top;
     luaL_Buffer b;
     size_t size;
     const char *part = luaL_optlstring(L, 3, "", &size);
     timeout_markstart(buf->tm);
+    /* make sure we don't confuse buffer stuff with arguments */
+    lua_settop(L, 3);
+    top = lua_gettop(L);
     /* initialize buffer with optional extra prefix
      * (useful for concatenating previous partial results) */
     luaL_buffinit(L, &b);

From 6952262e6a1315b14935ddd0ea511c202c0154ba Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Fri, 18 Mar 2022 17:54:11 +0300
Subject: [PATCH 02/62] style: Use C-style comment syntax throughout (#309)

Co-authored-by: Denise Cullassnekuff <19711487+BlackCutpoint@users.noreply.github.com>
---
 src/mime.c      |  8 ++++----
 src/options.c   | 45 +++++++++++++++++++++++----------------------
 src/unixdgram.c |  2 +-
 src/wsocket.c   | 20 ++++++++++----------
 4 files changed, 38 insertions(+), 37 deletions(-)

diff --git a/src/mime.c b/src/mime.c
index 6c210e4..05602f5 100755
--- a/src/mime.c
+++ b/src/mime.c
@@ -27,12 +27,12 @@ static int mime_global_eol(lua_State *L);
 static int mime_global_dot(lua_State *L);
 
 static size_t dot(int c, size_t state, luaL_Buffer *buffer);
-//static void b64setup(UC *base);
+/*static void b64setup(UC *base);*/
 static size_t b64encode(UC c, UC *input, size_t size, luaL_Buffer *buffer);
 static size_t b64pad(const UC *input, size_t size, luaL_Buffer *buffer);
 static size_t b64decode(UC c, UC *input, size_t size, luaL_Buffer *buffer);
 
-//static void qpsetup(UC *class, UC *unbase);
+/*static void qpsetup(UC *class, UC *unbase);*/
 static void qpquote(UC c, luaL_Buffer *buffer);
 static size_t qpdecode(UC c, UC *input, size_t size, luaL_Buffer *buffer);
 static size_t qpencode(UC c, UC *input, size_t size,
@@ -176,8 +176,8 @@ LUASOCKET_API int luaopen_mime_core(lua_State *L)
     lua_pushstring(L, MIME_VERSION);
     lua_rawset(L, -3);
     /* initialize lookup tables */
-    // qpsetup(qpclass, qpunbase);
-    // b64setup(b64unbase);
+    /*qpsetup(qpclass, qpunbase);*/
+    /*b64setup(b64unbase);*/
     return 1;
 }
 
diff --git a/src/options.c b/src/options.c
index 06ab58d..2b53c67 100644
--- a/src/options.c
+++ b/src/options.c
@@ -54,7 +54,7 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
     return opt->func(L, ps);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 /* enables reuse of local address */
 int opt_set_reuseaddr(lua_State *L, p_socket ps)
 {
@@ -66,7 +66,7 @@ int opt_get_reuseaddr(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_REUSEADDR);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 /* enables reuse of local port */
 int opt_set_reuseport(lua_State *L, p_socket ps)
 {
@@ -78,7 +78,7 @@ int opt_get_reuseport(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_REUSEPORT);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 /* disables the Nagle algorithm */
 int opt_set_tcp_nodelay(lua_State *L, p_socket ps)
 {
@@ -90,7 +90,7 @@ int opt_get_tcp_nodelay(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_TCP, TCP_NODELAY);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 #ifdef TCP_KEEPIDLE
 
 int opt_get_tcp_keepidle(lua_State *L, p_socket ps)
@@ -105,7 +105,7 @@ int opt_set_tcp_keepidle(lua_State *L, p_socket ps)
 
 #endif
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 #ifdef TCP_KEEPCNT
 
 int opt_get_tcp_keepcnt(lua_State *L, p_socket ps)
@@ -120,7 +120,7 @@ int opt_set_tcp_keepcnt(lua_State *L, p_socket ps)
 
 #endif
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 #ifdef TCP_KEEPINTVL
 
 int opt_get_tcp_keepintvl(lua_State *L, p_socket ps)
@@ -135,7 +135,7 @@ int opt_set_tcp_keepintvl(lua_State *L, p_socket ps)
 
 #endif
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_keepalive(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_KEEPALIVE);
@@ -146,7 +146,7 @@ int opt_get_keepalive(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_KEEPALIVE);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_dontroute(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_DONTROUTE);
@@ -157,7 +157,7 @@ int opt_get_dontroute(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_DONTROUTE);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_broadcast(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_BROADCAST);
@@ -168,7 +168,7 @@ int opt_get_broadcast(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_BROADCAST);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_recv_buf_size(lua_State *L, p_socket ps)
 {
 	return opt_setint(L, ps, SOL_SOCKET, SO_RCVBUF);
@@ -179,7 +179,7 @@ int opt_get_recv_buf_size(lua_State *L, p_socket ps)
 	return opt_getint(L, ps, SOL_SOCKET, SO_RCVBUF);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_get_send_buf_size(lua_State *L, p_socket ps)
 {
 	return opt_getint(L, ps, SOL_SOCKET, SO_SNDBUF);
@@ -190,7 +190,7 @@ int opt_set_send_buf_size(lua_State *L, p_socket ps)
 	return opt_setint(L, ps, SOL_SOCKET, SO_SNDBUF);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
@@ -201,7 +201,7 @@ int opt_get_ip6_unicast_hops(lua_State *L, p_socket ps)
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip6_multicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
@@ -212,7 +212,7 @@ int opt_get_ip6_multicast_hops(lua_State *L, p_socket ps)
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IP, IP_MULTICAST_LOOP);
@@ -223,7 +223,7 @@ int opt_get_ip_multicast_loop(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_IP, IP_MULTICAST_LOOP);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip6_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
@@ -234,7 +234,7 @@ int opt_get_ip6_multicast_loop(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_linger(lua_State *L, p_socket ps)
 {
     struct linger li;                      /* obj, name, table */
@@ -267,13 +267,13 @@ int opt_get_linger(lua_State *L, p_socket ps)
     return 1;
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_ttl(lua_State *L, p_socket ps)
 {
     return opt_setint(L, ps, IPPROTO_IP, IP_MULTICAST_TTL);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_if(lua_State *L, p_socket ps)
 {
     const char *address = luaL_checkstring(L, 3);    /* obj, name, ip */
@@ -298,7 +298,7 @@ int opt_get_ip_multicast_if(lua_State *L, p_socket ps)
     return 1;
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip_add_membership(lua_State *L, p_socket ps)
 {
     return opt_setmembership(L, ps, IPPROTO_IP, IP_ADD_MEMBERSHIP);
@@ -309,7 +309,7 @@ int opt_set_ip_drop_membersip(lua_State *L, p_socket ps)
     return opt_setmembership(L, ps, IPPROTO_IP, IP_DROP_MEMBERSHIP);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_set_ip6_add_membership(lua_State *L, p_socket ps)
 {
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP);
@@ -319,7 +319,8 @@ int opt_set_ip6_drop_membersip(lua_State *L, p_socket ps)
 {
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP);
 }
-// -------------------------------------------------------
+
+/*------------------------------------------------------*/
 int opt_get_ip6_v6only(lua_State *L, p_socket ps)
 {
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
@@ -330,7 +331,7 @@ int opt_set_ip6_v6only(lua_State *L, p_socket ps)
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
 }
 
-// -------------------------------------------------------
+/*------------------------------------------------------*/
 int opt_get_error(lua_State *L, p_socket ps)
 {
     int val = 0;
diff --git a/src/unixdgram.c b/src/unixdgram.c
index 3ac3c5e..69093d7 100644
--- a/src/unixdgram.c
+++ b/src/unixdgram.c
@@ -16,7 +16,7 @@
 
 #define UNIXDGRAM_DATAGRAMSIZE 8192
 
-// provide a SUN_LEN macro if sys/un.h doesn't (e.g. Android)
+/* provide a SUN_LEN macro if sys/un.h doesn't (e.g. Android) */
 #ifndef SUN_LEN
 #define SUN_LEN(ptr) \
   ((size_t) (((struct sockaddr_un *) 0)->sun_path)  \
diff --git a/src/wsocket.c b/src/wsocket.c
index 20da330..7cd4115 100755
--- a/src/wsocket.c
+++ b/src/wsocket.c
@@ -360,7 +360,7 @@ const char *socket_ioerror(p_socket ps, int err) {
 static const char *wstrerror(int err) {
     switch (err) {
         case WSAEINTR: return "Interrupted function call";
-        case WSAEACCES: return PIE_ACCESS; // "Permission denied";
+        case WSAEACCES: return PIE_ACCESS; /* "Permission denied"; */
         case WSAEFAULT: return "Bad address";
         case WSAEINVAL: return "Invalid argument";
         case WSAEMFILE: return "Too many open files";
@@ -373,23 +373,23 @@ static const char *wstrerror(int err) {
         case WSAEPROTOTYPE: return "Protocol wrong type for socket";
         case WSAENOPROTOOPT: return "Bad protocol option";
         case WSAEPROTONOSUPPORT: return "Protocol not supported";
-        case WSAESOCKTNOSUPPORT: return PIE_SOCKTYPE; // "Socket type not supported";
+        case WSAESOCKTNOSUPPORT: return PIE_SOCKTYPE; /* "Socket type not supported"; */
         case WSAEOPNOTSUPP: return "Operation not supported";
         case WSAEPFNOSUPPORT: return "Protocol family not supported";
-        case WSAEAFNOSUPPORT: return PIE_FAMILY; // "Address family not supported by protocol family";
-        case WSAEADDRINUSE: return PIE_ADDRINUSE; // "Address already in use";
+        case WSAEAFNOSUPPORT: return PIE_FAMILY; /* "Address family not supported by protocol family"; */
+        case WSAEADDRINUSE: return PIE_ADDRINUSE; /* "Address already in use"; */
         case WSAEADDRNOTAVAIL: return "Cannot assign requested address";
         case WSAENETDOWN: return "Network is down";
         case WSAENETUNREACH: return "Network is unreachable";
         case WSAENETRESET: return "Network dropped connection on reset";
         case WSAECONNABORTED: return "Software caused connection abort";
-        case WSAECONNRESET: return PIE_CONNRESET; // "Connection reset by peer";
+        case WSAECONNRESET: return PIE_CONNRESET; /* "Connection reset by peer"; */
         case WSAENOBUFS: return "No buffer space available";
-        case WSAEISCONN: return PIE_ISCONN; // "Socket is already connected";
+        case WSAEISCONN: return PIE_ISCONN; /* "Socket is already connected"; */
         case WSAENOTCONN: return "Socket is not connected";
         case WSAESHUTDOWN: return "Cannot send after socket shutdown";
-        case WSAETIMEDOUT: return PIE_TIMEDOUT; // "Connection timed out";
-        case WSAECONNREFUSED: return PIE_CONNREFUSED; // "Connection refused";
+        case WSAETIMEDOUT: return PIE_TIMEDOUT; /* "Connection timed out"; */
+        case WSAECONNREFUSED: return PIE_CONNREFUSED; /* "Connection refused"; */
         case WSAEHOSTDOWN: return "Host is down";
         case WSAEHOSTUNREACH: return "No route to host";
         case WSAEPROCLIM: return "Too many processes";
@@ -398,9 +398,9 @@ static const char *wstrerror(int err) {
         case WSANOTINITIALISED:
             return "Successful WSAStartup not yet performed";
         case WSAEDISCON: return "Graceful shutdown in progress";
-        case WSAHOST_NOT_FOUND: return PIE_HOST_NOT_FOUND; // "Host not found";
+        case WSAHOST_NOT_FOUND: return PIE_HOST_NOT_FOUND; /* "Host not found"; */
         case WSATRY_AGAIN: return "Nonauthoritative host not found";
-        case WSANO_RECOVERY: return PIE_FAIL; // "Nonrecoverable name lookup error";
+        case WSANO_RECOVERY: return PIE_FAIL; /* "Nonrecoverable name lookup error"; */
         case WSANO_DATA: return "Valid name, no data record of requested type";
         default: return "Unknown error";
     }

From 52b22da7e3361b6927ef7516851239808d54c673 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Fri, 18 Mar 2022 12:12:39 +0100
Subject: [PATCH 03/62] chore: Add editorconfig setup file

---
 .editorconfig | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 .editorconfig

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..edf8aa1
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,23 @@
+root                     = true
+
+[*]
+end_of_line              = lf
+insert_final_newline     = true
+trim_trailing_whitespace = true
+charset                  = utf-8
+
+[*.{lua,rockspec}]
+indent_style             = space
+indent_size              = 4
+
+[Makefile]
+indent_style             = tab
+indent_size              = 4
+
+[*.html]
+indent_style             = space
+indent_size              = 4
+
+[*.{c,h}]
+indent_style             = space
+indent_size              = 4

From f6509d4fd5dfc0363aada9b1653934356e9abd3f Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Fri, 18 Mar 2022 12:12:39 +0100
Subject: [PATCH 04/62] chore: Add luacheck linter project configuration

---
 .luacheckrc | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 .luacheckrc

diff --git a/.luacheckrc b/.luacheckrc
new file mode 100644
index 0000000..fcec7d5
--- /dev/null
+++ b/.luacheckrc
@@ -0,0 +1,31 @@
+unused_args     = false
+redefined       = false
+max_line_length = false
+
+not_globals = {
+    "string.len",
+    "table.getn",
+}
+
+include_files = {
+  "**/*.lua",
+  "**/*.rockspec",
+  ".busted",
+  ".luacheckrc",
+}
+
+exclude_files = {
+    "etc/*.lua",
+    "etc/**/*.lua",
+    "test/*.lua",
+    "test/**/*.lua",
+    "samples/*.lua",
+    "samples/**/*.lua",
+    "gem/*.lua",
+    "gem/**/*.lua",
+    -- GH Actions Lua Environment
+    ".lua",
+    ".luarocks",
+    ".install",
+}
+

From 480c05257211b3e566f33fdf8cf051233e2dab30 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Fri, 18 Mar 2022 12:12:39 +0100
Subject: [PATCH 05/62] ci: Add workflow to run luacheck linter

---
 .github/workflows/luacheck.yml | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 .github/workflows/luacheck.yml

diff --git a/.github/workflows/luacheck.yml b/.github/workflows/luacheck.yml
new file mode 100644
index 0000000..13993cc
--- /dev/null
+++ b/.github/workflows/luacheck.yml
@@ -0,0 +1,26 @@
+name: Luacheck
+
+on: [push, pull_request]
+
+jobs:
+  luacheck:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Setup Lua
+      uses: leafo/gh-actions-lua@v8
+      with:
+        luaVersion: 5.4
+
+    - name: Setup Lua Rocks
+      uses: leafo/gh-actions-luarocks@v4
+
+    - name: Setup dependencies
+      run: luarocks install luacheck
+
+    - name: Run Code Linter
+      run: |
+        luacheck .

From 601ad8d59f11d7180015d0ecfb9d0a8d67f6f5c1 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Fri, 18 Mar 2022 12:12:39 +0100
Subject: [PATCH 06/62] refactor: Address issues raised by linter

---
 etc/cookie.lua             |  22 +++----
 etc/get.lua                |   2 +-
 gem/ex11.lua               |   4 +-
 gem/ex3.lua                |   2 +-
 gem/ex4.lua                |   2 +-
 samples/cddb.lua           |   2 +-
 src/ftp.lua                |  14 ++---
 src/http.lua               |  11 ++--
 src/ltn12.lua              |   3 +-
 src/mbox.lua               |  13 +++--
 src/mime.lua               |  12 +---
 src/url.lua                |   6 +-
 test/ltn12test.lua         |  24 ++++----
 test/mimetest.lua          |  46 +++++++--------
 test/smtptest.lua          |  20 +++----
 test/test_socket_error.lua |   2 +-
 test/testmesg.lua          |  14 ++---
 test/testsupport.lua       |   2 +-
 test/urltest.lua           | 114 ++++++++++++++++++-------------------
 test/utestclnt.lua         |  68 +++++++++++-----------
 test/utestsrvr.lua         |   2 +-
 21 files changed, 187 insertions(+), 198 deletions(-)

diff --git a/etc/cookie.lua b/etc/cookie.lua
index 4adb403..fec10a1 100644
--- a/etc/cookie.lua
+++ b/etc/cookie.lua
@@ -5,7 +5,7 @@ local ltn12 = require"ltn12"
 
 local token_class =  '[^%c%s%(%)%<%>%@%,%;%:%\\%"%/%[%]%?%=%{%}]'
 
-local function unquote(t, quoted) 
+local function unquote(t, quoted)
     local n = string.match(t, "%$(%d+)$")
     if n then n = tonumber(n) end
     if quoted[n] then return quoted[n]
@@ -14,19 +14,19 @@ end
 
 local function parse_set_cookie(c, quoted, cookie_table)
     c = c .. ";$last=last;"
-    local _, __, n, v, i = string.find(c, "(" .. token_class .. 
+    local _, _, n, v, i = string.find(c, "(" .. token_class ..
         "+)%s*=%s*(.-)%s*;%s*()")
     local cookie = {
-        name = n, 
-        value = unquote(v, quoted), 
+        name = n,
+        value = unquote(v, quoted),
         attributes = {}
     }
     while 1 do
-        _, __, n, v, i = string.find(c, "(" .. token_class .. 
+        _, _, n, v, i = string.find(c, "(" .. token_class ..
             "+)%s*=?%s*(.-)%s*;%s*()", i)
         if not n or n == "$last" then break end
         cookie.attributes[#cookie.attributes+1] = {
-            name = n, 
+            name = n,
             value = unquote(v, quoted)
         }
     end
@@ -46,8 +46,8 @@ local function split_set_cookie(s, cookie_table)
     -- split into individual cookies
     i = 1
     while 1 do
-        local _, __, cookie, next_token
-        _, __, cookie, i, next_token = string.find(s, "(.-)%s*%,%s*()(" .. 
+        local _, _, cookie, next_token
+        _, _, cookie, i, next_token = string.find(s, "(.-)%s*%,%s*()(" ..
             token_class .. "+)%s*=", i)
         if not next_token then break end
         parse_set_cookie(cookie, quoted, cookie_table)
@@ -62,12 +62,12 @@ local function quote(s)
 end
 
 local _empty = {}
-local function build_cookies(cookies) 
+local function build_cookies(cookies)
     s = ""
     for i,v in ipairs(cookies or _empty) do
         if v.name then
             s = s .. v.name
-            if v.value and v.value ~= "" then 
+            if v.value and v.value ~= "" then
                 s = s .. '=' .. quote(v.value)
             end
         end
@@ -83,6 +83,6 @@ local function build_cookies(cookies)
         end
         if i < #cookies then s = s .. ", " end
     end
-    return s 
+    return s
 end
 
diff --git a/etc/get.lua b/etc/get.lua
index 9edc235..d53c465 100644
--- a/etc/get.lua
+++ b/etc/get.lua
@@ -71,7 +71,7 @@ function stats(size)
         local current = socket.gettime()
         if chunk then
             -- total bytes received
-            got = got + string.len(chunk)   
+            got = got + string.len(chunk)
             -- not enough time for estimate
             if current - last > 1 then
                 io.stderr:write("\r", gauge(got, current - start, size))
diff --git a/gem/ex11.lua b/gem/ex11.lua
index 1cbf01f..79c99af 100644
--- a/gem/ex11.lua
+++ b/gem/ex11.lua
@@ -1,7 +1,7 @@
 local input = source.chain(
-  source.file(io.open("input.bin", "rb")), 
+  source.file(io.open("input.bin", "rb")),
   encode("base64"))
 local output = sink.chain(
-  wrap(76), 
+  wrap(76),
   sink.file(io.open("output.b64", "w")))
 pump.all(input, output)
diff --git a/gem/ex3.lua b/gem/ex3.lua
index a43fefa..60b4423 100644
--- a/gem/ex3.lua
+++ b/gem/ex3.lua
@@ -7,7 +7,7 @@ local function chainpair(f1, f2)
 end
 
 function filter.chain(...)
-  local f = select(1, ...) 
+  local f = select(1, ...)
   for i = 2, select('#', ...) do
     f = chainpair(f, select(i, ...))
   end
diff --git a/gem/ex4.lua b/gem/ex4.lua
index c670e0e..c48b77e 100644
--- a/gem/ex4.lua
+++ b/gem/ex4.lua
@@ -1,4 +1,4 @@
-local qp = filter.chain(normalize(CRLF), encode("quoted-printable"), 
+local qp = filter.chain(normalize(CRLF), encode("quoted-printable"),
   wrap("quoted-printable"))
 local input = source.chain(source.file(io.stdin), qp)
 local output = sink.file(io.stdout)
diff --git a/samples/cddb.lua b/samples/cddb.lua
index 49a1871..59d5a44 100644
--- a/samples/cddb.lua
+++ b/samples/cddb.lua
@@ -26,7 +26,7 @@ function parse(body)
             data[key] = value
         end
     end
-    return data, code, message 
+    return data, code, message
 end
 
 local host = socket.dns.gethostname()
diff --git a/src/ftp.lua b/src/ftp.lua
index bd528ca..0ebc508 100644
--- a/src/ftp.lua
+++ b/src/ftp.lua
@@ -56,7 +56,7 @@ end
 
 function metat.__index:login(user, password)
     self.try(self.tp:command("user", user or _M.USER))
-    local code, reply = self.try(self.tp:check{"2..", 331})
+    local code, _ = self.try(self.tp:check{"2..", 331})
     if code == 331 then
         self.try(self.tp:command("pass", password or _M.PASSWORD))
         self.try(self.tp:check("2.."))
@@ -66,7 +66,7 @@ end
 
 function metat.__index:pasv()
     self.try(self.tp:command("pasv"))
-    local code, reply = self.try(self.tp:check("2.."))
+    local _, reply = self.try(self.tp:check("2.."))
     local pattern = "(%d+)%D(%d+)%D(%d+)%D(%d+)%D(%d+)%D(%d+)"
     local a, b, c, d, p1, p2 = socket.skip(2, string.find(reply, pattern))
     self.try(a and b and c and d and p1 and p2, reply)
@@ -83,9 +83,9 @@ end
 
 function metat.__index:epsv()
     self.try(self.tp:command("epsv"))
-    local code, reply = self.try(self.tp:check("229"))
+    local _, reply = self.try(self.tp:check("229"))
     local pattern = "%((.)(.-)%1(.-)%1(.-)%1%)"
-    local d, prt, address, port = string.match(reply, pattern)
+    local _, _, _, port = string.match(reply, pattern)
     self.try(port, "invalid epsv response")
     self.pasvt = {
         address = self.tp:getpeername(),
@@ -102,7 +102,7 @@ end
 function metat.__index:port(address, port)
     self.pasvt = nil
     if not address then
-        address, port = self.try(self.tp:getsockname())
+        address = self.try(self.tp:getsockname())
         self.server = self.try(socket.bind(address, 0))
         address, port = self.try(self.server:getsockname())
         self.try(self.server:settimeout(_M.TIMEOUT))
@@ -118,7 +118,7 @@ end
 function metat.__index:eprt(family, address, port)
     self.pasvt = nil
     if not address then
-        address, port = self.try(self.tp:getsockname())
+        address = self.try(self.tp:getsockname())
         self.server = self.try(socket.bind(address, 0))
         address, port = self.try(self.server:getsockname())
         self.try(self.server:settimeout(_M.TIMEOUT))
@@ -142,7 +142,7 @@ function metat.__index:send(sendt)
     local command = sendt.command or "stor"
     -- send the transfer command and check the reply
     self.try(self.tp:command(command, argument))
-    local code, reply = self.try(self.tp:check{"2..", "1.."})
+    local code, _ = self.try(self.tp:check{"2..", "1.."})
     -- if there is not a pasvt table, then there is a server
     -- and we already sent a PORT command
     if not self.pasvt then self:portconnect() end
diff --git a/src/http.lua b/src/http.lua
index 6a3416e..e3a1742 100644
--- a/src/http.lua
+++ b/src/http.lua
@@ -41,9 +41,6 @@ local SCHEMES = {
             https.tcp, 'LuaSocket: Function tcp() not available from LuaSec')
           return tcp(t) end }}
 
--- default scheme and port for document retrieval
-local SCHEME = 'http'
-local PORT = SCHEMES[SCHEME].port
 -----------------------------------------------------------------------------
 -- Reads MIME headers from a connection, unfolding where needed
 -----------------------------------------------------------------------------
@@ -92,7 +89,7 @@ socket.sourcet["http-chunked"] = function(sock, headers)
             -- was it the last chunk?
             if size > 0 then
                 -- if not, get chunk and skip terminating CRLF
-                local chunk, err, part = sock:receive(size)
+                local chunk, err, _ = sock:receive(size)
                 if chunk then sock:receive() end
                 return chunk, err
             else
@@ -166,8 +163,8 @@ function metat.__index:receivestatusline()
     if status ~= "HTTP/" then
         if ec == "timeout" then
             return 408
-        end 
-        return nil, status 
+        end
+        return nil, status
     end
     -- otherwise proceed reading a status line
     status = self.try(self.c:receive("*l", status))
@@ -366,7 +363,7 @@ end
     local headers
     -- ignore any 100-continue messages
     while code == 100 do
-        headers = h:receiveheaders()
+        h:receiveheaders()
         code, status = h:receivestatusline()
     end
     headers = h:receiveheaders()
diff --git a/src/ltn12.lua b/src/ltn12.lua
index afa735d..f1e05e1 100644
--- a/src/ltn12.lua
+++ b/src/ltn12.lua
@@ -13,7 +13,7 @@ local unpack = unpack or table.unpack
 local base = _G
 local _M = {}
 if module then -- heuristic for exporting a global package table
-    ltn12 = _M
+    ltn12 = _M  -- luacheck: ignore
 end
 local filter,source,sink,pump = {},{},{},{}
 
@@ -23,7 +23,6 @@ _M.sink = sink
 _M.pump = pump
 
 local unpack = unpack or table.unpack
-local select = base.select
 
 -- 2048 seems to be better in windows...
 _M.BLOCKSIZE = 2048
diff --git a/src/mbox.lua b/src/mbox.lua
index ed9e781..12823b0 100644
--- a/src/mbox.lua
+++ b/src/mbox.lua
@@ -1,8 +1,8 @@
 local _M = {}
 
 if module then
-    mbox = _M
-end 
+    mbox = _M   -- luacheck: ignore
+end
 
 function _M.split_message(message_s)
     local message = {}
@@ -29,7 +29,7 @@ end
 function _M.parse_header(header_s)
     header_s = string.gsub(header_s, "\n[ ]+", " ")
     header_s = string.gsub(header_s, "\n+", "")
-    local _, __, name, value = string.find(header_s, "([^%s:]-):%s*(.*)")
+    local _, _, name, value = string.find(header_s, "([^%s:]-):%s*(.*)")
     return name, value
 end
 
@@ -49,9 +49,9 @@ function _M.parse_headers(headers_s)
 end
 
 function _M.parse_from(from)
-    local _, __, name, address = string.find(from, "^%s*(.-)%s*%<(.-)%>")
+    local _, _, name, address = string.find(from, "^%s*(.-)%s*%<(.-)%>")
     if not address then
-        _, __, address = string.find(from, "%s*(.+)%s*")
+        _, _, address = string.find(from, "%s*(.+)%s*")
     end
     name = name or ""
     address = address or ""
@@ -63,7 +63,8 @@ end
 function _M.split_mbox(mbox_s)
     local mbox = {}
     mbox_s = string.gsub(mbox_s, "\r\n", "\n") .."\n\nFrom \n"
-    local nj, i, j = 1, 1, 1
+    local nj, i
+    local j = 1
     while 1 do
         i, nj = string.find(mbox_s, "\n\nFrom .-\n", j)
         if not i then break end
diff --git a/src/mime.lua b/src/mime.lua
index d3abac5..93539de 100644
--- a/src/mime.lua
+++ b/src/mime.lua
@@ -10,7 +10,6 @@
 local base = _G
 local ltn12 = require("ltn12")
 local mime = require("mime.core")
-local string = require("string")
 local _M = mime
 
 -- encode, decode and wrap algorithm tables
@@ -18,7 +17,7 @@ local encodet, decodet, wrapt = {},{},{}
 
 _M.encodet = encodet
 _M.decodet = decodet
-_M.wrapt   = wrapt  
+_M.wrapt   = wrapt
 
 -- creates a function that chooses a filter by name from a given table
 local function choose(table)
@@ -27,7 +26,7 @@ local function choose(table)
             name, opt1, opt2 = "default", name, opt1
         end
         local f = table[name or "nil"]
-        if not f then 
+        if not f then
             base.error("unknown key (" .. base.tostring(name) .. ")", 3)
         else return f(opt1, opt2) end
     end
@@ -52,13 +51,6 @@ decodet['quoted-printable'] = function()
     return ltn12.filter.cycle(_M.unqp, "")
 end
 
-local function format(chunk)
-    if chunk then
-        if chunk == "" then return "''"
-        else return string.len(chunk) end
-    else return "nil" end
-end
-
 -- define the line-wrap filters
 wrapt['text'] = function(length)
     length = length or 76
diff --git a/src/url.lua b/src/url.lua
index 0a3a80a..8e0dc5c 100644
--- a/src/url.lua
+++ b/src/url.lua
@@ -179,9 +179,9 @@ function _M.parse(url, default)
         function(u) parsed.userinfo = u; return "" end)
     authority = string.gsub(authority, ":([^:%]]*)$",
         function(p) parsed.port = p; return "" end)
-    if authority ~= "" then 
+    if authority ~= "" then
         -- IPv6?
-        parsed.host = string.match(authority, "^%[(.+)%]$") or authority 
+        parsed.host = string.match(authority, "^%[(.+)%]$") or authority
     end
     local userinfo = parsed.userinfo
     if not userinfo then return parsed end
@@ -264,7 +264,7 @@ function _M.absolute(base_url, relative_url)
                         relative_parsed.query = base_parsed.query
                     end
                 end
-            else    
+            else
                 relative_parsed.path = absolute_path(base_parsed.path or "",
                     relative_parsed.path)
             end
diff --git a/test/ltn12test.lua b/test/ltn12test.lua
index e7d368d..0cafbc9 100644
--- a/test/ltn12test.lua
+++ b/test/ltn12test.lua
@@ -38,7 +38,7 @@ local function named(f, name)
 end
 
 --------------------------------
-local function split(size) 
+local function split(size)
     local buffer = ""
     local last_out = ""
     local last_in = ""
@@ -50,12 +50,12 @@ local function split(size)
         return last_out
     end
     return function(chunk, done)
-        if done then 
-            return not last_in and not last_out 
+        if done then
+            return not last_in and not last_out
         end
         -- check if argument is consistent with state
         if not chunk then
-            if last_in and last_in ~= "" and last_out ~= "" then 
+            if last_in and last_in ~= "" and last_out ~= "" then
                 error("nil chunk following data chunk", 2)
             end
             if not last_out then error("extra nil chunk", 2) end
@@ -67,8 +67,8 @@ local function split(size)
             return output(chunk)
         else
             if not last_in  then error("data chunk following nil chunk", 2) end
-            if last_in ~= "" and last_out ~= "" then 
-                error("data chunk following data chunk", 2) 
+            if last_in ~= "" and last_out ~= "" then
+                error("data chunk following data chunk", 2)
             end
             buffer = chunk
             return output(chunk)
@@ -85,7 +85,7 @@ local function format(chunk)
 end
 
 --------------------------------
-local function merge(size) 
+local function merge(size)
     local buffer = ""
     local last_out = ""
     local last_in = ""
@@ -102,12 +102,12 @@ local function merge(size)
         return last_out
     end
     return function(chunk, done)
-        if done then 
-            return not last_in and not last_out 
+        if done then
+            return not last_in and not last_out
         end
         -- check if argument is consistent with state
         if not chunk then
-            if last_in and last_in ~= "" and last_out ~= "" then 
+            if last_in and last_in ~= "" and last_out ~= "" then
                 error("nil chunk following data chunk", 2)
             end
             if not last_out then error("extra nil chunk", 2) end
@@ -119,8 +119,8 @@ local function merge(size)
             return output(chunk)
         else
             if not last_in  then error("data chunk following nil chunk", 2) end
-            if last_in ~= "" and last_out ~= "" then 
-                error("data chunk following data chunk", 2) 
+            if last_in ~= "" and last_out ~= "" then
+                error("data chunk following data chunk", 2)
             end
             buffer = buffer .. chunk
             return output(chunk)
diff --git a/test/mimetest.lua b/test/mimetest.lua
index f5b3747..a3c89ac 100644
--- a/test/mimetest.lua
+++ b/test/mimetest.lua
@@ -15,27 +15,27 @@ local eb64test = "b64test.bin2"
 local db64test = "b64test.bin3"
 
 
--- from Machado de Assis, "A Mão e a Rosa"
+-- from Machado de Assis, "A M�o e a Rosa"
 local mao = [[
-    Cursavam estes dois moços a academia de S. Paulo, estando 
-    Luís Alves no quarto ano e Estêvão no terceiro. 
-    Conheceram-se na academia, e ficaram amigos íntimos, tanto
-    quanto podiam sê-lo dois espíritos diferentes, ou talvez por 
-    isso mesmo que o eram. Estêvão, dotado de extrema
-    sensibilidade, e não menor fraqueza de ânimo, afetuoso e
-    bom, não daquela bondade varonil, que é apanágio de uma alma
-    forte, mas dessa outra bondade mole e de cera, que vai à
-    mercê de todas as circunstâncias, tinha, além de tudo isso, 
-    o infortúnio de trazer ainda sobre o nariz os óculos 
-    cor-de-rosa de suas virginais ilusões. Luís Alves via bem
-    com os olhos da cara. Não era mau rapaz, mas tinha o seu
-    grão de egoísmo, e se não era incapaz de afeições, sabia
-    regê-las, moderá-las, e sobretudo guiá-las ao seu próprio
+    Cursavam estes dois mo�os a academia de S. Paulo, estando
+    Lu�s Alves no quarto ano e Est�v�o no terceiro.
+    Conheceram-se na academia, e ficaram amigos �ntimos, tanto
+    quanto podiam s�-lo dois esp�ritos diferentes, ou talvez por
+    isso mesmo que o eram. Est�v�o, dotado de extrema
+    sensibilidade, e n�o menor fraqueza de �nimo, afetuoso e
+    bom, n�o daquela bondade varonil, que � apan�gio de uma alma
+    forte, mas dessa outra bondade mole e de cera, que vai �
+    merc� de todas as circunst�ncias, tinha, al�m de tudo isso,
+    o infort�nio de trazer ainda sobre o nariz os �culos
+    cor-de-rosa de suas virginais ilus�es. Lu�s Alves via bem
+    com os olhos da cara. N�o era mau rapaz, mas tinha o seu
+    gr�o de ego�smo, e se n�o era incapaz de afei��es, sabia
+    reg�-las, moder�-las, e sobretudo gui�-las ao seu pr�prio
     interesse.  Entre estes dois homens travara-se amizade
-    íntima, nascida para um na simpatia, para outro no costume.
+    �ntima, nascida para um na simpatia, para outro no costume.
     Eram eles os naturais confidentes um do outro, com a
-    diferença que Luís Alves dava menos do que recebia, e, ainda
-    assim, nem tudo o que dava exprimia grande confiança.
+    diferen�a que Lu�s Alves dava menos do que recebia, e, ainda
+    assim, nem tudo o que dava exprimia grande confian�a.
 ]]
 
 local function random(handle, io_err)
@@ -44,8 +44,8 @@ local function random(handle, io_err)
             if not handle then error("source is empty!", 2) end
             local len = math.random(0, 1024)
             local chunk = handle:read(len)
-            if not chunk then 
-                handle:close() 
+            if not chunk then
+                handle:close()
                 handle = nil
             end
             return chunk
@@ -62,7 +62,7 @@ local what = nil
 local function transform(input, output, filter)
     local source = random(io.open(input, "rb"))
     local sink = ltn12.sink.file(io.open(output, "wb"))
-    if what then 
+    if what then
         sink = ltn12.sink.chain(filter, sink)
     else
         source = ltn12.source.chain(source, filter)
@@ -147,7 +147,7 @@ local function create_qptest()
         f:write(' ',string.char(32))
     end
     f:write("\r\n")
-    
+
     f:close()
 end
 
@@ -157,7 +157,7 @@ local function cleanup_qptest()
     os.remove(dqptest)
 end
 
--- create test file 
+-- create test file
 local function create_b64test()
     local f = assert(io.open(b64test, "wb"))
     local t = {}
diff --git a/test/smtptest.lua b/test/smtptest.lua
index b5380ff..9d06054 100644
--- a/test/smtptest.lua
+++ b/test/smtptest.lua
@@ -27,8 +27,8 @@ local total = function()
 end
 
 local similar = function(s1, s2)
-    return 
-    string.lower(string.gsub(s1, "%s", "")) == 
+    return
+    string.lower(string.gsub(s1, "%s", "")) ==
     string.lower(string.gsub(s2, "%s", ""))
 end
 
@@ -40,9 +40,9 @@ end
 
 local readfile = function(name)
     local f = io.open(name, "r")
-    if not f then 
+    if not f then
         fail("unable to open file!")
-        return nil 
+        return nil
     end
     local s = f:read("*a")
     f:close()
@@ -52,7 +52,7 @@ end
 local empty = function()
     for i,v in ipairs(files) do
         local f = io.open(v, "w")
-        if not f then 
+        if not f then
             fail("unable to open file!")
         end
         f:close()
@@ -116,8 +116,8 @@ local wait = function(sentinel, n)
     while 1 do
         local mbox = parse(get())
         if n == #mbox then break end
-        if socket.time() - sentinel.time > 50 then 
-            to = 1 
+        if socket.time() - sentinel.time > 50 then
+            to = 1
             break
         end
         socket.sleep(1)
@@ -132,7 +132,7 @@ local stuffed_body = [[
 This message body needs to be
 stuffed because it has a dot
 .
-by itself on a line. 
+by itself on a line.
 Otherwise the mailer would
 think that the dot
 .
@@ -219,7 +219,7 @@ else print("ok") end
 
 io.write("testing invalid from: ")
 local ret, err = socket.smtp.mail{
-    from = ' " " (( _ * ', 
+    from = ' " " (( _ * ',
     rcpt = rcpt,
 }
 if ret or not err then fail("wrong error message")
@@ -227,7 +227,7 @@ else print(err) end
 
 io.write("testing no rcpt: ")
 local ret, err = socket.smtp.mail{
-    from = from, 
+    from = from,
 }
 if ret or not err then fail("wrong error message")
 else print(err) end
diff --git a/test/test_socket_error.lua b/test/test_socket_error.lua
index bda6408..1b4b601 100644
--- a/test/test_socket_error.lua
+++ b/test/test_socket_error.lua
@@ -19,7 +19,7 @@ for i = 1, 10 do
     assert(ss == sock)
   else
     assert('timeout' == err, 'unexpected error :' .. tostring(err))
-  end 
+  end
   err = sock:getoption("error") -- i get 'connection refused' on WinXP
   if err then
     print("Passed! Error is '" .. err .. "'.")
diff --git a/test/testmesg.lua b/test/testmesg.lua
index 135a008..8c086d5 100644
--- a/test/testmesg.lua
+++ b/test/testmesg.lua
@@ -34,11 +34,11 @@ r, e = smtp.send{
 
 print(r, e)
 
--- creates a source to send a message with two parts. The first part is 
+-- creates a source to send a message with two parts. The first part is
 -- plain text, the second part is a PNG image, encoded as base64.
 source = smtp.message{
   headers = {
-     -- Remember that headers are *ignored* by smtp.send. 
+     -- Remember that headers are *ignored* by smtp.send.
      from = "Sicrano <sicrano@tecgraf.puc-rio.br>",
      to = "Fulano <fulano@tecgraf.puc-rio.br>",
      subject = "Here is a message with attachments"
@@ -49,18 +49,18 @@ source = smtp.message{
                "Preamble might show up even in a MIME enabled client.",
     -- first part: No headers means plain text, us-ascii.
     -- The mime.eol low-level filter normalizes end-of-line markers.
-    [1] = { 
+    [1] = {
       body = mime.eol(0, [[
-        Lines in a message body should always end with CRLF. 
+        Lines in a message body should always end with CRLF.
         The smtp module will *NOT* perform translation. It will
         perform necessary stuffing, though.
       ]])
     },
-    -- second part: Headers describe content the to be an image, 
+    -- second part: Headers describe content the to be an image,
     -- sent under the base64 transfer content encoding.
-    -- Notice that nothing happens until the message is sent. Small 
+    -- Notice that nothing happens until the message is sent. Small
     -- chunks are loaded into memory and translation happens on the fly.
-    [2] = { 
+    [2] = {
       headers = {
         ["ConTenT-tYpE"] = 'image/png; name="luasocket.png"',
         ["content-disposition"] = 'attachment; filename="luasocket.png"',
diff --git a/test/testsupport.lua b/test/testsupport.lua
index b986088..4360b6b 100644
--- a/test/testsupport.lua
+++ b/test/testsupport.lua
@@ -7,7 +7,7 @@ function readfile(name)
 end
 
 function similar(s1, s2)
-    return string.lower(string.gsub(s1 or "", "%s", "")) == 
+    return string.lower(string.gsub(s1 or "", "%s", "")) ==
         string.lower(string.gsub(s2 or "", "%s", ""))
 end
 
diff --git a/test/urltest.lua b/test/urltest.lua
index ae8ba75..9a3c470 100644
--- a/test/urltest.lua
+++ b/test/urltest.lua
@@ -60,8 +60,8 @@ end
 
 local check_absolute_url = function(base, relative, absolute)
     local res = socket.url.absolute(base, relative)
-    if res ~= absolute then 
-        io.write("absolute: In test for base='", base, "', rel='", relative, "' expected '", 
+    if res ~= absolute then
+        io.write("absolute: In test for base='", base, "', rel='", relative, "' expected '",
             absolute, "' but got '", res, "'\n")
         os.exit()
     end
@@ -73,7 +73,7 @@ local check_parse_url = function(gaba)
     local parsed = socket.url.parse(url)
     for i, v in pairs(gaba) do
         if v ~= parsed[i] then
-            io.write("parse: In test for '", url, "' expected ", i, " = '", 
+            io.write("parse: In test for '", url, "' expected ", i, " = '",
                    v, "' but got '", tostring(parsed[i]), "'\n")
             for i,v in pairs(parsed) do print(i,v) end
             os.exit()
@@ -81,7 +81,7 @@ local check_parse_url = function(gaba)
     end
     for i, v in pairs(parsed) do
         if v ~= gaba[i] then
-            io.write("parse: In test for '", url, "' expected ", i, " = '", 
+            io.write("parse: In test for '", url, "' expected ", i, " = '",
                    tostring(gaba[i]), "' but got '", v, "'\n")
             for i,v in pairs(parsed) do print(i,v) end
             os.exit()
@@ -92,8 +92,8 @@ end
 print("testing URL parsing")
 check_parse_url{
     url = "scheme://user:pass$%?#wd@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "user:pass$%?#wd@host:port", 
+    scheme = "scheme",
+    authority = "user:pass$%?#wd@host:port",
     host = "host",
     port = "port",
     userinfo = "user:pass$%?#wd",
@@ -106,8 +106,8 @@ check_parse_url{
 }
 check_parse_url{
     url = "scheme://user:pass?#wd@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "user:pass?#wd@host:port", 
+    scheme = "scheme",
+    authority = "user:pass?#wd@host:port",
     host = "host",
     port = "port",
     userinfo = "user:pass?#wd",
@@ -120,8 +120,8 @@ check_parse_url{
 }
 check_parse_url{
     url = "scheme://user:pass-wd@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "user:pass-wd@host:port", 
+    scheme = "scheme",
+    authority = "user:pass-wd@host:port",
     host = "host",
     port = "port",
     userinfo = "user:pass-wd",
@@ -134,8 +134,8 @@ check_parse_url{
 }
 check_parse_url{
     url = "scheme://user:pass#wd@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "user:pass#wd@host:port", 
+    scheme = "scheme",
+    authority = "user:pass#wd@host:port",
     host = "host",
     port = "port",
     userinfo = "user:pass#wd",
@@ -148,8 +148,8 @@ check_parse_url{
 }
 check_parse_url{
     url = "scheme://user:pass#wd@host:port/path;params?query",
-    scheme = "scheme", 
-    authority = "user:pass#wd@host:port", 
+    scheme = "scheme",
+    authority = "user:pass#wd@host:port",
     host = "host",
     port = "port",
     userinfo = "user:pass#wd",
@@ -161,8 +161,8 @@ check_parse_url{
 }
 check_parse_url{
     url = "scheme://userinfo@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -175,8 +175,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
-    authority = "user:password@host:port", 
+    scheme = "scheme",
+    authority = "user:password@host:port",
     host = "host",
     port = "port",
     userinfo = "user:password",
@@ -190,8 +190,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/path;params?query#",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -204,8 +204,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/path;params?#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -218,8 +218,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/path;params#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -231,8 +231,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/path;?query#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -245,8 +245,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/path?query#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -258,8 +258,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port/;params?query#fragment",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -272,8 +272,8 @@ check_parse_url{
 
 check_parse_url{
     url = "scheme://userinfo@host:port",
-    scheme = "scheme", 
-    authority = "userinfo@host:port", 
+    scheme = "scheme",
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -282,7 +282,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//userinfo@host:port/path;params?query#fragment",
-    authority = "userinfo@host:port", 
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -295,7 +295,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//userinfo@host:port/path",
-    authority = "userinfo@host:port", 
+    authority = "userinfo@host:port",
     host = "host",
     port = "port",
     userinfo = "userinfo",
@@ -305,7 +305,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//userinfo@host/path",
-    authority = "userinfo@host", 
+    authority = "userinfo@host",
     host = "host",
     userinfo = "userinfo",
     user = "userinfo",
@@ -314,7 +314,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//user:password@host/path",
-    authority = "user:password@host", 
+    authority = "user:password@host",
     host = "host",
     userinfo = "user:password",
     password = "password",
@@ -324,7 +324,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//user:@host/path",
-    authority = "user:@host", 
+    authority = "user:@host",
     host = "host",
     userinfo = "user:",
     password = "",
@@ -334,7 +334,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//user@host:port/path",
-    authority = "user@host:port", 
+    authority = "user@host:port",
     host = "host",
     userinfo = "user",
     user = "user",
@@ -344,7 +344,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//host:port/path",
-    authority = "host:port", 
+    authority = "host:port",
     port = "port",
     host = "host",
     path = "/path",
@@ -352,14 +352,14 @@ check_parse_url{
 
 check_parse_url{
     url = "//host/path",
-    authority = "host", 
+    authority = "host",
     host = "host",
     path = "/path",
 }
 
 check_parse_url{
     url = "//host",
-    authority = "host", 
+    authority = "host",
     host = "host",
 }
 
@@ -433,7 +433,7 @@ check_parse_url{
 
 check_parse_url{
     url = "//userinfo@[::FFFF:129.144.52.38]:port/path;params?query#fragment",
-    authority = "userinfo@[::FFFF:129.144.52.38]:port", 
+    authority = "userinfo@[::FFFF:129.144.52.38]:port",
     host = "::FFFF:129.144.52.38",
     port = "port",
     userinfo = "userinfo",
@@ -447,7 +447,7 @@ check_parse_url{
 check_parse_url{
     url = "scheme://user:password@[::192.9.5.5]:port/path;params?query#fragment",
     scheme = "scheme",
-    authority = "user:password@[::192.9.5.5]:port", 
+    authority = "user:password@[::192.9.5.5]:port",
     host = "::192.9.5.5",
     port = "port",
     userinfo = "user:password",
@@ -462,7 +462,7 @@ check_parse_url{
 print("testing URL building")
 check_build_url {
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     port = "port",
     user = "user",
@@ -499,7 +499,7 @@ check_build_url{
 
 check_build_url {
     url = "scheme://user:password@host/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     user = "user",
     password = "password",
@@ -511,7 +511,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://user@host/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     user = "user",
     path = "/path",
@@ -522,7 +522,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://host/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     path = "/path",
     params = "params",
@@ -532,7 +532,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://host/path;params#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     path = "/path",
     params = "params",
@@ -541,7 +541,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://host/path#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     path = "/path",
     fragment = "fragment"
@@ -549,7 +549,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://host/path",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     path = "/path",
 }
@@ -567,7 +567,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     port = "port",
     user = "user",
@@ -581,7 +581,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     port = "port",
     user = "user",
@@ -596,7 +596,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     host = "host",
     port = "port",
     userinfo = "user:password",
@@ -609,7 +609,7 @@ check_build_url {
 
 check_build_url {
     url = "scheme://user:password@host:port/path;params?query#fragment",
-    scheme = "scheme", 
+    scheme = "scheme",
     authority = "user:password@host:port",
     path = "/path",
     params = "params",
@@ -683,7 +683,7 @@ check_absolute_url("//a/b/c/d;p?q#f", "d/e/f", "//a/b/c/d/e/f")
 check_absolute_url("/a/b/c/d;p?q#f", "d/e/f", "/a/b/c/d/e/f")
 check_absolute_url("a/b/c/d", "d/e/f", "a/b/c/d/e/f")
 check_absolute_url("a/b/c/d/../", "d/e/f", "a/b/c/d/e/f")
-check_absolute_url("http://velox.telemar.com.br", "/dashboard/index.html", 
+check_absolute_url("http://velox.telemar.com.br", "/dashboard/index.html",
    "http://velox.telemar.com.br/dashboard/index.html")
 check_absolute_url("http://example.com/", "../.badhost.com/", "http://example.com/.badhost.com/")
 check_absolute_url("http://example.com/", "...badhost.com/", "http://example.com/...badhost.com/")
@@ -700,11 +700,11 @@ check_absolute_url("http://example.com/a/b/c/d/", "../x/a/../y/z/../../../../q",
 print("testing path parsing and composition")
 check_parse_path("/eu/tu/ele", { "eu", "tu", "ele"; is_absolute = 1 })
 check_parse_path("/eu/", { "eu"; is_absolute = 1, is_directory = 1 })
-check_parse_path("eu/tu/ele/nos/vos/eles/", 
+check_parse_path("eu/tu/ele/nos/vos/eles/",
     { "eu", "tu", "ele", "nos", "vos", "eles"; is_directory = 1})
 check_parse_path("/", { is_absolute = 1, is_directory = 1})
 check_parse_path("", { })
-check_parse_path("eu%01/%02tu/e%03l%04e/nos/vos%05/e%12les/", 
+check_parse_path("eu%01/%02tu/e%03l%04e/nos/vos%05/e%12les/",
     { "eu\1", "\2tu", "e\3l\4e", "nos", "vos\5", "e\18les"; is_directory = 1})
 check_parse_path("eu/tu", { "eu", "tu" })
 
diff --git a/test/utestclnt.lua b/test/utestclnt.lua
index 34a0718..7f10643 100644
--- a/test/utestclnt.lua
+++ b/test/utestclnt.lua
@@ -54,30 +54,30 @@ function check_timeout(tm, sl, elapsed, err, opp, mode, alldone)
             if not err then warn("must be buffered")
             elseif err == "timeout" then pass("proper timeout")
             else fail("unexpected error '%s'", err) end
-        else 
-            if err ~= "timeout" then fail("should have timed out") 
+        else
+            if err ~= "timeout" then fail("should have timed out")
             else pass("proper timeout") end
         end
     else
         if mode == "total" then
-            if elapsed > tm then 
+            if elapsed > tm then
                 if err ~= "timeout" then fail("should have timed out")
                 else pass("proper timeout") end
             elseif elapsed < tm then
-                if err then fail(err) 
+                if err then fail(err)
                 else pass("ok") end
-            else 
-                if alldone then 
-                    if err then fail("unexpected error '%s'", err) 
+            else
+                if alldone then
+                    if err then fail("unexpected error '%s'", err)
                     else pass("ok") end
                 else
-                    if err ~= "timeout" then fail(err) 
+                    if err ~= "timeout" then fail(err)
                     else pass("proper timeoutk") end
                 end
             end
-        else 
-            if err then fail(err) 
-            else pass("ok") end 
+        else
+            if err then fail(err)
+            else pass("ok") end
         end
     end
 end
@@ -104,7 +104,7 @@ function reconnect()
         print("done " .. i)
     ]]
     data, err = uconnect(host, port)
-    if not data then fail(err) 
+    if not data then fail(err)
     else pass("connected!") end
 end
 
@@ -116,8 +116,8 @@ else pass("connected!") end
 ------------------------------------------------------------------------
 function test_methods(sock, methods)
     for _, v in pairs(methods) do
-        if type(sock[v]) ~= "function" then 
-            fail(sock.class .. " method '" .. v .. "' not registered") 
+        if type(sock[v]) ~= "function" then
+            fail(sock.class .. " method '" .. v .. "' not registered")
         end
     end
     pass(sock.class .. " methods are ok")
@@ -132,7 +132,7 @@ function test_mixed(len)
     local p3 = "raw " .. string.rep("z", inter) .. "bytes"
     local p4 = "end" .. string.rep("w", inter) .. "bytes"
     local bp1, bp2, bp3, bp4
-remote (string.format("str = data:receive(%d)", 
+remote (string.format("str = data:receive(%d)",
             string.len(p1)+string.len(p2)+string.len(p3)+string.len(p4)))
     sent, err = data:send(p1..p2..p3..p4)
     if err then fail(err) end
@@ -172,7 +172,7 @@ function test_rawline(len)
     reconnect()
     local str, str10, back, err
     str = string.rep(string.char(47), math.mod(len, 10))
-    str10 = string.rep(string.char(120,21,77,4,5,0,7,36,44,100), 
+    str10 = string.rep(string.char(120,21,77,4,5,0,7,36,44,100),
             math.floor(len/10))
     str = str .. str10
 remote "str = data:receive()"
@@ -221,7 +221,7 @@ function test_totaltimeoutreceive(len, tm, sl)
     data:settimeout(tm, "total")
 local t = socket.gettime()
     str, err, partial, elapsed = data:receive(2*len)
-    check_timeout(tm, sl, elapsed, err, "receive", "total", 
+    check_timeout(tm, sl, elapsed, err, "receive", "total",
         string.len(str or partial) == 2*len)
 end
 
@@ -241,7 +241,7 @@ function test_totaltimeoutsend(len, tm, sl)
     data:settimeout(tm, "total")
     str = string.rep("a", 2*len)
     total, err, partial, elapsed = data:send(str)
-    check_timeout(tm, sl, elapsed, err, "send", "total", 
+    check_timeout(tm, sl, elapsed, err, "send", "total",
         total == 2*len)
 end
 
@@ -261,7 +261,7 @@ function test_blockingtimeoutreceive(len, tm, sl)
     ]], 2*tm, len, sl, sl))
     data:settimeout(tm)
     str, err, partial, elapsed = data:receive(2*len)
-    check_timeout(tm, sl, elapsed, err, "receive", "blocking", 
+    check_timeout(tm, sl, elapsed, err, "receive", "blocking",
         string.len(str or partial) == 2*len)
 end
 
@@ -294,10 +294,10 @@ function empty_connect()
         data = server:accept()
     ]]
     data, err = socket.connect("", port)
-    if not data then 
+    if not data then
         pass("ok")
         data = socket.connect(host, port)
-    else 
+    else
         pass("gethostbyname returns localhost on empty string...")
     end
 end
@@ -331,7 +331,7 @@ function test_closed()
         data:close()
         data = nil
     ]], str))
-    -- try to get a line 
+    -- try to get a line
     back, err, partial = data:receive()
     if not err then fail("should have gotten 'closed'.")
     elseif err ~= "closed" then fail("got '"..err.."' instead of 'closed'.")
@@ -344,25 +344,25 @@ function test_closed()
         data = nil
     ]]
     total, err, partial = data:send(string.rep("ugauga", 100000))
-    if not err then 
+    if not err then
         pass("failed: output buffer is at least %d bytes long!", total)
-    elseif err ~= "closed" then 
+    elseif err ~= "closed" then
         fail("got '"..err.."' instead of 'closed'.")
-    else 
-        pass("graceful 'closed' received after %d bytes were sent", partial) 
+    else
+        pass("graceful 'closed' received after %d bytes were sent", partial)
     end
 end
 
 ------------------------------------------------------------------------
 function test_selectbugs()
     local r, s, e = socket.select(nil, nil, 0.1)
-    assert(type(r) == "table" and type(s) == "table" and 
+    assert(type(r) == "table" and type(s) == "table" and
         (e == "timeout" or e == "error"))
     pass("both nil: ok")
     local udp = socket.udp()
     udp:close()
     r, s, e = socket.select({ udp }, { udp }, 0.1)
-    assert(type(r) == "table" and type(s) == "table" and 
+    assert(type(r) == "table" and type(s) == "table" and
         (e == "timeout" or e == "error"))
     pass("closed sockets: ok")
     e = pcall(socket.select, "wrong", 1, 0.1)
@@ -380,7 +380,7 @@ function accept_timeout()
     local t = socket.gettime()
     s:settimeout(1)
     local c, e = s:accept()
-    assert(not c, "should not accept") 
+    assert(not c, "should not accept")
     assert(e == "timeout", string.format("wrong error message (%s)", e))
     t = socket.gettime() - t
     assert(t < 2, string.format("took to long to give up (%gs)", t))
@@ -398,9 +398,9 @@ function connect_timeout()
     local t = socket.gettime()
     local r, e = c:connect("127.0.0.2", 80)
     assert(not r, "should not connect")
-    assert(socket.gettime() - t < 2, "took too long to give up.") 
+    assert(socket.gettime() - t < 2, "took too long to give up.")
     c:close()
-    print("ok") 
+    print("ok")
 end
 
 ------------------------------------------------------------------------
@@ -463,9 +463,9 @@ function getstats_test()
         data:receive(c)
         t = t + c
         local r, s, a = data:getstats()
-        assert(r == t, "received count failed" .. tostring(r) 
+        assert(r == t, "received count failed" .. tostring(r)
             .. "/" .. tostring(t))
-        assert(s == t, "sent count failed" .. tostring(s) 
+        assert(s == t, "sent count failed" .. tostring(s)
             .. "/" .. tostring(t))
     end
     print("ok")
@@ -473,7 +473,7 @@ end
 
 
 ------------------------------------------------------------------------
-function test_nonblocking(size) 
+function test_nonblocking(size)
     reconnect()
 print("Testing "  .. 2*size .. " bytes")
 remote(string.format([[
diff --git a/test/utestsrvr.lua b/test/utestsrvr.lua
index a96b570..b6e4246 100644
--- a/test/utestsrvr.lua
+++ b/test/utestsrvr.lua
@@ -9,7 +9,7 @@ ack = "\n";
 while 1 do
     print("server: waiting for client connection...");
     control = assert(server:accept());
-    while 1 do 
+    while 1 do
         command = assert(control:receive());
         assert(control:send(ack));
         ((loadstring or load)(command))();

From 989a5b11310c1c6da900c2f997712405a7986d09 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 17:28:25 +0300
Subject: [PATCH 07/62] chore: Include luacheck config in editorconfig setup

---
 .editorconfig | 2 +-
 .luacheckrc   | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.editorconfig b/.editorconfig
index edf8aa1..56ad87d 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -6,7 +6,7 @@ insert_final_newline     = true
 trim_trailing_whitespace = true
 charset                  = utf-8
 
-[*.{lua,rockspec}]
+[{*.lua,*.rockspec,.luacheckrc}]
 indent_style             = space
 indent_size              = 4
 
diff --git a/.luacheckrc b/.luacheckrc
index fcec7d5..8b25dd7 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -8,10 +8,10 @@ not_globals = {
 }
 
 include_files = {
-  "**/*.lua",
-  "**/*.rockspec",
-  ".busted",
-  ".luacheckrc",
+    "**/*.lua",
+    "**/*.rockspec",
+    ".busted",
+    ".luacheckrc",
 }
 
 exclude_files = {

From 8390d07774a1ba1a597d809a1a2562d88ecce19d Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 17:34:28 +0300
Subject: [PATCH 08/62] chore: Bump Lua version used in linter

---
 .github/workflows/luacheck.yml | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/.github/workflows/luacheck.yml b/.github/workflows/luacheck.yml
index 13993cc..597cd64 100644
--- a/.github/workflows/luacheck.yml
+++ b/.github/workflows/luacheck.yml
@@ -3,24 +3,17 @@ name: Luacheck
 on: [push, pull_request]
 
 jobs:
-  luacheck:
-    runs-on: ubuntu-latest
 
+  luacheck:
+    runs-on: ubuntu-20.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: Setup Lua
-      uses: leafo/gh-actions-lua@v8
-      with:
-        luaVersion: 5.4
-
-    - name: Setup Lua Rocks
+      uses: actions/checkout@v3
+    - name: Setup ‘lua’
+      uses: leafo/gh-actions-lua@v9
+    - name: Setup ‘luarocks’
       uses: leafo/gh-actions-luarocks@v4
-
-    - name: Setup dependencies
+    - name: Setup ‘luacheck’
       run: luarocks install luacheck
-
-    - name: Run Code Linter
-      run: |
-        luacheck .
+    - name: Run ‘luacheck’ linter
+      run: luacheck .

From d0f2d132bf4b02ff342b3d87479ec0cf46f7c059 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 17:55:12 +0300
Subject: [PATCH 09/62] chore: Move SCM rockspec to root and bump rockrel to 3

---
 .../luasocket-scm-2.rockspec => luasocket-scm-3.rockspec  | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
 rename rockspec/luasocket-scm-2.rockspec => luasocket-scm-3.rockspec (95%)

diff --git a/rockspec/luasocket-scm-2.rockspec b/luasocket-scm-3.rockspec
similarity index 95%
rename from rockspec/luasocket-scm-2.rockspec
rename to luasocket-scm-3.rockspec
index 9a71b07..4e1669c 100644
--- a/rockspec/luasocket-scm-2.rockspec
+++ b/luasocket-scm-3.rockspec
@@ -1,8 +1,8 @@
 package = "LuaSocket"
-version = "scm-2"
+version = "scm-3"
 source = {
-  url = "git://github.com/diegonehab/luasocket.git"
-  , branch="master"
+  url = "git+https://github.com/lunarmodules/luasocket.git",
+  branch = "master"
 }
 description = {
   summary = "Network support for the Lua language",
@@ -12,7 +12,7 @@ description = {
       modules that add support for functionality commonly needed by applications
       that deal with the Internet.
    ]],
-  homepage = "http://luaforge.net/projects/luasocket/",
+  homepage = "https://github.com/lunarmodules/luasocket",
   license = "MIT"
 }
 dependencies = {

From 36428e07cd164c83f71469d1bb84992bd026cbb3 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 17:55:12 +0300
Subject: [PATCH 10/62] chore: Rename rockspec dir to be plural

---
 {rockspec => rockspecs}/luasocket-3.0rc2-1.rockspec | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename {rockspec => rockspecs}/luasocket-3.0rc2-1.rockspec (100%)

diff --git a/rockspec/luasocket-3.0rc2-1.rockspec b/rockspecs/luasocket-3.0rc2-1.rockspec
similarity index 100%
rename from rockspec/luasocket-3.0rc2-1.rockspec
rename to rockspecs/luasocket-3.0rc2-1.rockspec

From 335f647075fb5e0423039e9a335bbf032e8a8334 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 18:20:05 +0300
Subject: [PATCH 11/62] chore: Add current most recent rockspec as published

---
 rockspecs/luasocket-3.0rc1-2.rockspec | 108 ++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 rockspecs/luasocket-3.0rc1-2.rockspec

diff --git a/rockspecs/luasocket-3.0rc1-2.rockspec b/rockspecs/luasocket-3.0rc1-2.rockspec
new file mode 100644
index 0000000..3cb6524
--- /dev/null
+++ b/rockspecs/luasocket-3.0rc1-2.rockspec
@@ -0,0 +1,108 @@
+package = "LuaSocket"
+version = "3.0rc1-2"
+source = {
+   url = "https://github.com/diegonehab/luasocket/archive/v3.0-rc1.zip",
+   dir = "luasocket-3.0-rc1",
+}
+description = {
+   summary = "Network support for the Lua language",
+   detailed = [[
+      LuaSocket is a Lua extension library that is composed by two parts: a C core
+      that provides support for the TCP and UDP transport layers, and a set of Lua
+      modules that add support for functionality commonly needed by applications
+      that deal with the Internet.
+   ]],
+   homepage = "http://luaforge.net/projects/luasocket/",
+   license = "MIT"
+}
+dependencies = {
+   "lua >= 5.1"
+}
+
+local function make_plat(plat)
+   local defines = {
+      unix = {
+         "LUA_COMPAT_APIINTCASTS",
+         "LUASOCKET_DEBUG",
+         "LUASOCKET_API=__attribute__((visibility(\"default\")))",
+         "UNIX_API=__attribute__((visibility(\"default\")))",
+         "MIME_API=__attribute__((visibility(\"default\")))"
+      },
+      macosx = {
+         "LUA_COMPAT_APIINTCASTS",
+         "LUASOCKET_DEBUG",
+         "UNIX_HAS_SUN_LEN",
+         "LUASOCKET_API=__attribute__((visibility(\"default\")))",
+         "UNIX_API=__attribute__((visibility(\"default\")))",
+         "MIME_API=__attribute__((visibility(\"default\")))"
+      },
+      win32 = {
+         "LUA_COMPAT_APIINTCASTS",
+         "LUASOCKET_DEBUG",
+         "NDEBUG",
+         "LUASOCKET_API=__declspec(dllexport)",
+         "MIME_API=__declspec(dllexport)"
+      },
+      mingw32 = {
+         "LUA_COMPAT_APIINTCASTS",
+         "LUASOCKET_DEBUG",
+         "LUASOCKET_INET_PTON",
+         "WINVER=0x0501",
+         "LUASOCKET_API=__declspec(dllexport)",
+         "MIME_API=__declspec(dllexport)"
+      }
+   }
+   local modules = {
+      ["socket.core"] = {
+         sources = { "src/luasocket.c", "src/timeout.c", "src/buffer.c", "src/io.c", "src/auxiliar.c",
+                     "src/options.c", "src/inet.c", "src/except.c", "src/select.c", "src/tcp.c", "src/udp.c" },
+         defines = defines[plat],
+         incdir = "src"
+      },
+      ["mime.core"] = {
+         sources = { "src/mime.c" },
+         defines = defines[plat],
+         incdir = "src"
+      },
+      ["socket.http"] = "src/http.lua",
+      ["socket.url"] = "src/url.lua",
+      ["socket.tp"] = "src/tp.lua",
+      ["socket.ftp"] = "src/ftp.lua",
+      ["socket.headers"] = "src/headers.lua",
+      ["socket.smtp"] = "src/smtp.lua",
+      ltn12 = "src/ltn12.lua",
+      socket = "src/socket.lua",
+      mime = "src/mime.lua"
+   }
+   if plat == "unix" or plat == "macosx" then
+      modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/usocket.c"
+      modules["socket.unix"] = {
+         sources = { "src/buffer.c", "src/auxiliar.c", "src/options.c", "src/timeout.c", "src/io.c",
+                     "src/usocket.c", "src/unix.c" },
+         defines = defines[plat],
+         incdir = "/src"
+      }
+      modules["socket.serial"] = {
+         sources = { "src/buffer.c", "src/auxiliar.c", "src/options.c", "src/timeout.c",
+                     "src/io.c", "src/usocket.c", "src/serial.c" },
+         defines = defines[plat],
+         incdir = "/src"
+      }
+   end
+   if plat == "win32" or plat == "mingw32" then
+      modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
+      modules["socket.core"].libraries = { "ws2_32" }
+   end
+   return { modules = modules }
+end
+
+build = {
+   type = "builtin",
+   platforms = {
+      unix = make_plat("unix"),
+      macosx = make_plat("macosx"),
+      win32 = make_plat("win32"),
+      mingw32 = make_plat("mingw32")
+   },
+   copy_directories = { "doc", "samples", "etc", "test" }
+}

From 91aa6522a0a4d5e24af86524fa68350de40a2667 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 18:20:52 +0300
Subject: [PATCH 12/62] chore: Drop rockspec for never-published RC2 release

---
 rockspecs/luasocket-3.0rc2-1.rockspec | 134 --------------------------
 1 file changed, 134 deletions(-)
 delete mode 100644 rockspecs/luasocket-3.0rc2-1.rockspec

diff --git a/rockspecs/luasocket-3.0rc2-1.rockspec b/rockspecs/luasocket-3.0rc2-1.rockspec
deleted file mode 100644
index dfe5275..0000000
--- a/rockspecs/luasocket-3.0rc2-1.rockspec
+++ /dev/null
@@ -1,134 +0,0 @@
-package = "LuaSocket"
-version = "3.0rc2-1"
-source = {
-  url = "git://github.com/diegonehab/luasocket.git",
-  tag = "v3.0-rc2",
-}
-description = {
-  summary = "Network support for the Lua language",
-  detailed = [[
-      LuaSocket is a Lua extension library that is composed by two parts: a C core
-      that provides support for the TCP and UDP transport layers, and a set of Lua
-      modules that add support for functionality commonly needed by applications
-      that deal with the Internet.
-   ]],
-  homepage = "http://luaforge.net/projects/luasocket/",
-  license = "MIT"
-}
-dependencies = {
-  "lua >= 5.1"
-}
-
-local function make_plat(plat)
-  local defines = {
-    unix = {
-      "LUASOCKET_DEBUG"
-    },
-    macosx = {
-      "LUASOCKET_DEBUG",
-      "UNIX_HAS_SUN_LEN"
-    },
-    win32 = {
-      "LUASOCKET_DEBUG",
-      "NDEBUG"
-    },
-    mingw32 = {
-      "LUASOCKET_DEBUG",
-      "LUASOCKET_INET_PTON",
-      "WINVER=0x0501"
-    }
-  }
-  local modules = {
-    ["socket.core"] = {
-      sources = {
-        "src/luasocket.c"
-        , "src/timeout.c"
-        , "src/buffer.c"
-        , "src/io.c"
-        , "src/auxiliar.c"
-        , "src/options.c"
-        , "src/inet.c"
-        , "src/except.c"
-        , "src/select.c"
-        , "src/tcp.c"
-        , "src/udp.c"
-        , "src/compat.c" },
-      defines = defines[plat],
-      incdir = "/src"
-    },
-    ["mime.core"] = {
-      sources = { "src/mime.c", "src/compat.c" },
-      defines = defines[plat],
-      incdir = "/src"
-    },
-    ["socket.http"]    = "src/http.lua",
-    ["socket.url"]     = "src/url.lua",
-    ["socket.tp"]      = "src/tp.lua",
-    ["socket.ftp"]     = "src/ftp.lua",
-    ["socket.headers"] = "src/headers.lua",
-    ["socket.smtp"]    = "src/smtp.lua",
-    ltn12              = "src/ltn12.lua",
-    socket             = "src/socket.lua",
-    mime               = "src/mime.lua"
-  }
-  if plat == "unix"
-    or plat == "macosx"
-    or plat == "haiku"
-  then
-    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/usocket.c"
-    if plat == "haiku" then
-      modules["socket.core"].libraries = {"network"}
-    end
-    modules["socket.unix"] = {
-      sources = {
-        "src/buffer.c"
-        , "src/compat.c"
-        , "src/auxiliar.c"
-        , "src/options.c"
-        , "src/timeout.c"
-        , "src/io.c"
-        , "src/usocket.c"
-        , "src/unix.c"
-        , "src/unixdgram.c"
-        , "src/unixstream.c" },
-      defines = defines[plat],
-      incdir = "/src"
-    }
-    modules["socket.serial"] = {
-      sources = {
-        "src/buffer.c"
-        , "src/compat.c"
-        , "src/auxiliar.c"
-        , "src/options.c"
-        , "src/timeout.c"
-        , "src/io.c"
-        , "src/usocket.c"
-        , "src/serial.c" },
-      defines = defines[plat],
-      incdir = "/src"
-    }
-  end
-  if  plat == "win32"
-    or plat == "mingw32"
-  then
-    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
-    modules["socket.core"].libraries = { "ws2_32" }
-  end
-  return { modules = modules }
-end
-
-build = {
-  type = "builtin",
-  platforms = {
-    unix = make_plat("unix"),
-    macosx = make_plat("macosx"),
-    haiku = make_plat("haiku"),
-    win32 = make_plat("win32"),
-    mingw32 = make_plat("mingw32")
-  },
-  copy_directories = {
-    "doc"
-    , "samples"
-    , "etc"
-    , "test" }
-}

From 844165ff89c0ec7bb50ac65ce010200dba1c8d89 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 18:11:43 +0300
Subject: [PATCH 13/62] ci: Drop obsolete Travis configs

---
 .travis.yml | 54 -----------------------------------------------------
 1 file changed, 54 deletions(-)
 delete mode 100644 .travis.yml

diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index fce8a96..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-language: erlang
-
-env:
-  global:
-    - LUAROCKS_BASE=luarocks-2.0.13
-  matrix:
-    - LUA=lua5.1 LUA_DEV=liblua5.1-dev LUA_VER=5.1 LUA_SFX=5.1 LUA_INCDIR=/usr/include/lua5.1
-    - LUA=lua5.2 LUA_DEV=liblua5.2-dev LUA_VER=5.2 LUA_SFX=5.2 LUA_INCDIR=/usr/include/lua5.2
-    - LUA=luajit LUA_DEV=libluajit-5.1-dev LUA_VER=5.1 LUA_SFX=jit LUA_INCDIR=/usr/include/luajit-2.0
-
-branches:
-  only:
-    - master
-
-before_install:
-  - if [ $LUA = "luajit" ]; then
-      sudo add-apt-repository ppa:mwild1/ppa -y && sudo apt-get update -y;
-    fi
-  - sudo apt-get install $LUA
-  - sudo apt-get install $LUA_DEV
-  - lua$LUA_SFX -v
-  # Install a recent luarocks release
-  - wget http://luarocks.org/releases/$LUAROCKS_BASE.tar.gz
-  - tar zxvpf $LUAROCKS_BASE.tar.gz
-  - cd $LUAROCKS_BASE
-  - ./configure
-    --lua-version=$LUA_VER --lua-suffix=$LUA_SFX --with-lua-include="$LUA_INCDIR"
-  - sudo make
-  - sudo make install
-  - cd $TRAVIS_BUILD_DIR
-
-
-install:
-  - export DEBUG=DEBUG
-  - sudo -E luarocks make luasocket-scm-0.rockspec 
-
-script: 
-  - cd test
-  - lua$LUA_SFX hello.lua
-  - lua$LUA_SFX testsrvr.lua > /dev/null &
-  - lua$LUA_SFX testclnt.lua
-  - lua$LUA_SFX stufftest.lua
-  - lua$LUA_SFX excepttest.lua
-  - lua$LUA_SFX test_bind.lua
-  - lua$LUA_SFX test_getaddrinfo.lua
-  - lua$LUA_SFX ltn12test.lua
-  - lua$LUA_SFX mimetest.lua
-  - lua$LUA_SFX urltest.lua
-  - lua$LUA_SFX test_socket_error.lua
-
-notifications:
-  email:
-    on_success: change
-    on_failure: always

From 2cc6f8a55c45ec9b5ad165c150259060d4d70a82 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 20:55:11 +0300
Subject: [PATCH 14/62] ci: Add workflow to confirm build completes

---
 .github/workflows/build.yml | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 .github/workflows/build.yml

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..8265bb1
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,24 @@
+name: Check build
+
+on: [ push, pull_request ]
+
+jobs:
+  build:
+    name: Check build
+    strategy:
+      fail-fast: false
+      matrix:
+        luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty"]
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup ‘lua’
+        uses: leafo/gh-actions-lua@v9
+        with:
+          luaVersion: ${{ matrix.luaVersion }}
+      - name: Setup ‘luarocks’
+        uses: leafo/gh-actions-luarocks@v4
+      - name: Make with Luarocks
+        run: |
+          luarocks make --pack-binary-rock -- luasocket-scm-3.rockspec

From 46ecb7e2dc3dd92931c6d9d99fdc9260e83077ff Mon Sep 17 00:00:00 2001
From: david <57832272+jyoui@users.noreply.github.com>
Date: Tue, 1 Feb 2022 15:40:35 +0900
Subject: [PATCH 15/62] src/ltn12.lua: remove duplicated codes

---
 src/ltn12.lua | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/ltn12.lua b/src/ltn12.lua
index f1e05e1..4cb17f5 100644
--- a/src/ltn12.lua
+++ b/src/ltn12.lua
@@ -11,6 +11,8 @@ local string = require("string")
 local table = require("table")
 local unpack = unpack or table.unpack
 local base = _G
+local select = select
+
 local _M = {}
 if module then -- heuristic for exporting a global package table
     ltn12 = _M  -- luacheck: ignore
@@ -22,8 +24,6 @@ _M.source = source
 _M.sink = sink
 _M.pump = pump
 
-local unpack = unpack or table.unpack
-
 -- 2048 seems to be better in windows...
 _M.BLOCKSIZE = 2048
 _M._VERSION = "LTN12 1.0.3"
@@ -45,7 +45,7 @@ end
 -- (thanks to Wim Couwenberg)
 function filter.chain(...)
     local arg = {...}
-    local n = base.select('#',...)
+    local n = select('#',...)
     local top, index = 1, 1
     local retry = ""
     return function(chunk)

From e3c17b002ae4747c033c374d39538d4e242dbb22 Mon Sep 17 00:00:00 2001
From: "E. Westbrook" <github@westbrook.io>
Date: Mon, 11 Mar 2019 02:07:45 -0600
Subject: [PATCH 16/62] Add src\compat.c to mime.vcxproj and socket.vcxproj

---
 mime.vcxproj   | 1 +
 socket.vcxproj | 1 +
 2 files changed, 2 insertions(+)

diff --git a/mime.vcxproj b/mime.vcxproj
index 43acee9..575f985 100755
--- a/mime.vcxproj
+++ b/mime.vcxproj
@@ -20,6 +20,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\mime.c" />
+    <ClCompile Include="src\compat.c" />
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{128E8BD0-174A-48F0-8771-92B1E8D18713}</ProjectGuid>
diff --git a/socket.vcxproj b/socket.vcxproj
index 305c094..51ebc68 100755
--- a/socket.vcxproj
+++ b/socket.vcxproj
@@ -21,6 +21,7 @@
   <ItemGroup>
     <ClCompile Include="src\auxiliar.c" />
     <ClCompile Include="src\buffer.c" />
+    <ClCompile Include="src\compat.c" />
     <ClCompile Include="src\except.c" />
     <ClCompile Include="src\inet.c" />
     <ClCompile Include="src\io.c" />

From 2a76cb906cb955a83ed76b8e47cc76c77ce8e15f Mon Sep 17 00:00:00 2001
From: Julian Squires <julian@cipht.net>
Date: Fri, 16 Oct 2020 12:18:46 -0230
Subject: [PATCH 17/62] http.lua: set transfer-encoding if source and no
 content-length

If a source is specified without a content-length header, LuaSocket
sends the data in the chunked transfer coding; however, it doesn't set
the transfer-encoding header.  While I recognize that the user can set
this manually, this is a gotcha that has caught me multiple times.

RFC7230, section 3.3.3
  (https://tools.ietf.org/html/rfc7230#section-3.3.3)
is clear about this; if neither content-length nor transfer-encoding
chunked are specified, the request message body length is zero.  While
some servers may ignore this, I have encountered several that follow
the RFC in this regard, most recently golang's net/http.
---
 src/http.lua | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/http.lua b/src/http.lua
index e3a1742..1330355 100644
--- a/src/http.lua
+++ b/src/http.lua
@@ -283,6 +283,13 @@ local function adjustrequest(reqt)
     nreqt.uri = reqt.uri or adjusturi(nreqt)
     -- adjust headers in request
     nreqt.headers = adjustheaders(nreqt)
+    if nreqt.source
+        and not nreqt.headers["content-length"]
+        and not nreqt.headers["transfer-encoding"]
+    then
+        nreqt.headers["transfer-encoding"] = "chunked"
+    end
+
     -- ajust host and port if there is a proxy
     nreqt.host, nreqt.port = adjustproxy(nreqt)
     return nreqt

From fdd741da5cd0515e69572e564f2d57f336d2466b Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 20:58:52 +0300
Subject: [PATCH 18/62] Ci: Run regression tests after successful build

---
 .github/workflows/build.yml | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8265bb1..64393cc 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,10 +1,10 @@
-name: Check build
+name: Test build
 
 on: [ push, pull_request ]
 
 jobs:
   build:
-    name: Check build
+    name: Test build on Linux
     strategy:
       fail-fast: false
       matrix:
@@ -19,6 +19,23 @@ jobs:
           luaVersion: ${{ matrix.luaVersion }}
       - name: Setup ‘luarocks’
         uses: leafo/gh-actions-luarocks@v4
-      - name: Make with Luarocks
+      - name: Make and install locally
         run: |
-          luarocks make --pack-binary-rock -- luasocket-scm-3.rockspec
+          export DEBUG=DEBUG
+          luarocks --local make -- luasocket-scm-3.rockspec
+      - name: Run regression tests
+        run: |
+          eval $(luarocks --local path)
+          cd test
+          lua hello.lua
+          lua testsrvr.lua > /dev/null &
+          lua testclnt.lua
+          lua stufftest.lua
+          lua excepttest.lua
+          lua test_bind.lua
+          lua test_getaddrinfo.lua
+          lua ltn12test.lua
+          lua mimetest.lua
+          lua urltest.lua
+          lua test_socket_error.lua
+          kill %1

From 9787c17e589dc1b12c1f96e6bb391a7ff3dd5065 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 21:18:54 +0300
Subject: [PATCH 19/62] ci: Expand test matrix to cover Windows and macOS

---
 .github/workflows/build.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 64393cc..518de63 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,7 +9,8 @@ jobs:
       fail-fast: false
       matrix:
         luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty"]
-    runs-on: ubuntu-20.04
+        platform: [ "ubuntu-20.04", "windows-2022", "macos-11" ]
+    runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3

From 52c72694c2989c38fc9df915dcb34995d1e37404 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 21:23:58 +0300
Subject: [PATCH 20/62] ci: Disable unsupported Windows and avoid duplicate
 runs

---
 .github/workflows/build.yml | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 518de63..d22e67f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,10 @@
 name: Test build
 
-on: [ push, pull_request ]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
 
 jobs:
   build:
@@ -9,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty"]
-        platform: [ "ubuntu-20.04", "windows-2022", "macos-11" ]
+        platform: [ "ubuntu-20.04", "macos-11" ] # "windows-2022" not supported by gh-actions-lua
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout

From f9e1d03f3c6c9fc59dd3b91716debc23aebf947f Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 19 Mar 2022 22:42:25 +0300
Subject: [PATCH 21/62] ci: Don't bother doing user-local install in ephemeral
 runner

---
 .github/workflows/build.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d22e67f..17cad49 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,13 +24,12 @@ jobs:
           luaVersion: ${{ matrix.luaVersion }}
       - name: Setup ‘luarocks’
         uses: leafo/gh-actions-luarocks@v4
-      - name: Make and install locally
+      - name: Make and install
         run: |
           export DEBUG=DEBUG
-          luarocks --local make -- luasocket-scm-3.rockspec
+          luarocks make -- luasocket-scm-3.rockspec
       - name: Run regression tests
         run: |
-          eval $(luarocks --local path)
           cd test
           lua hello.lua
           lua testsrvr.lua > /dev/null &

From f97dc8489d58aef2d038288f9a8bc69f907e17bb Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Tue, 22 Mar 2022 19:21:58 +0100
Subject: [PATCH 22/62] fix(docs) fix html linter issues in the docs (#358)

---
 doc/dns.html       |  78 +++++------
 doc/ftp.html       | 122 ++++++++---------
 doc/http.html      | 142 ++++++++++----------
 doc/index.html     | 140 +++++++++----------
 doc/ltn12.html     | 200 ++++++++++++++--------------
 doc/mime.html      | 302 ++++++++++++++++++++---------------------
 doc/reference.html |  22 +--
 doc/smtp.html      | 191 +++++++++++++-------------
 doc/socket.html    | 256 +++++++++++++++++------------------
 doc/tcp.html       | 325 +++++++++++++++++++++++----------------------
 doc/udp.html       |  94 ++++++-------
 11 files changed, 938 insertions(+), 934 deletions(-)

diff --git a/doc/dns.html b/doc/dns.html
index c4a0472..56ce3ba 100644
--- a/doc/dns.html
+++ b/doc/dns.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
@@ -13,22 +13,22 @@
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,14 +36,14 @@
 
 <!-- dns ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=dns>DNS</h2> 
+<h2 id="dns">DNS</h2>
 
 <p>
-IPv4 name resolution functions 
-<a href=#toip><tt>dns.toip</tt></a>
+IPv4 name resolution functions
+<a href="#toip"><tt>dns.toip</tt></a>
 and
-<a href=#tohostname><tt>dns.tohostname</tt></a>
-return <em>all</em> information obtained from 
+<a href="#tohostname"><tt>dns.tohostname</tt></a>
+return <em>all</em> information obtained from
 the resolver in a table of the form:
 </p>
 
@@ -60,10 +60,10 @@ Note that the <tt>alias</tt> list can be empty.
 </p>
 
 <p>
-The more general name resolution function 
-<a href=#getaddrinfo><tt>dns.getaddrinfo</tt></a>, which
+The more general name resolution function
+<a href="#getaddrinfo"><tt>dns.getaddrinfo</tt></a>, which
 supports both IPv6 and IPv4,
-returns <em>all</em> information obtained from 
+returns <em>all</em> information obtained from
 the resolver in a table of the form:
 </p>
 
@@ -88,82 +88,82 @@ addresses, and <tt>"inet6"</tt> for IPv6 addresses.
 
 <!-- getaddrinfo ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=getaddrinfo> 
+<p class="name" id="getaddrinfo">
 socket.dns.<b>getaddrinfo(</b>address<b>)</b>
 </p>
 
-<p class=description>
-Converts from host name to address. 
+<p class="description">
+Converts from host name to address.
 </p>
 
-<p class=parameters>
-<tt>Address</tt> can  be an IPv4 or IPv6 address or host name. 
+<p class="parameters">
+<tt>Address</tt> can  be an IPv4 or IPv6 address or host name.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns a table with  all  information returned  by
 the  resolver.  In  case of error, the function returns <b><tt>nil</tt></b>
-followed by an error message.  
+followed by an error message.
 </p>
 
 <!-- gethostname ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=gethostname> 
+<p class="name" id="gethostname">
 socket.dns.<b>gethostname()</b>
 </p>
 
-<p class=description>
-Returns the standard host name for the machine as a string. 
+<p class="description">
+Returns the standard host name for the machine as a string.
 </p>
 
 <!-- tohostname +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=tohostname> 
+<p class="name" id="tohostname">
 socket.dns.<b>tohostname(</b>address<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Converts from IPv4 address to host name.
 </p>
 
-<p class=parameters>
-<tt>Address</tt> can  be an IP address  or host name. 
+<p class="parameters">
+<tt>Address</tt> can  be an IP address  or host name.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns a string  with the canonic host name of the given
 <tt>address</tt>, followed  by a  table with  all  information returned  by
 the  resolver.  In  case of error, the function returns <b><tt>nil</tt></b>
-followed by an error message.  
+followed by an error message.
 </p>
 
 <!-- toip +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=toip> 
+<p class="name" id="toip">
 socket.dns.<b>toip(</b>address<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Converts from host name to IPv4 address.
 </p>
 
-<p class=parameters>
-<tt>Address</tt> can  be an IP address  or host name. 
+<p class="parameters">
+<tt>Address</tt> can  be an IP address  or host name.
 </p>
 
-<p class=return> 
+<p class="return">
 Returns a string  with the first IP address  found for <tt>address</tt>,
 followed  by a  table with  all  information returned  by the  resolver.
 In  case of error, the function returns <b><tt>nil</tt></b> followed by an error
-message. 
+message.
 </p>
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/ftp.html b/doc/ftp.html
index 091c88f..7f7da2e 100644
--- a/doc/ftp.html
+++ b/doc/ftp.html
@@ -1,5 +1,5 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
-    "http://www.w3.org/TR/html4/strict.dtd"> 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
+    "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
@@ -13,22 +13,22 @@
 
 <!-- header ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,7 +36,7 @@
 
 <!-- ftp ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=ftp>FTP</h2> 
+<h2 id="ftp">FTP</h2>
 
 <p>
 FTP  (File Transfer  Protocol)  is a  protocol  used  to transfer  files
@@ -50,28 +50,28 @@ High level functions are provided supporting the most common operations.
 These high level functions are implemented on top of a lower level
 interface. Using the low-level interface, users can easily create their
 own functions to access <em>any</em> operation supported by the FTP
-protocol.  For that, check the implementation.  
+protocol.  For that, check the implementation.
 </p>
 
 <p>
-To really benefit from this module, a good understanding of 
+To really benefit from this module, a good understanding of
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">
-LTN012, Filters sources and sinks</a> is necessary. 
+LTN012, Filters sources and sinks</a> is necessary.
 </p>
 
-<p> 
+<p>
 To obtain the <tt>ftp</tt> namespace, run:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- loads the FTP module and any libraries it requires
 local ftp = require("socket.ftp")
 </pre>
 
 <p>
 URLs MUST conform to
-<a href="http://www.ietf.org/rfc/rfc1738.txt">RFC 1738</a>, 
-that is, an URL is a string in the form: 
+<a href="http://www.ietf.org/rfc/rfc1738.txt">RFC 1738</a>,
+that is, an URL is a string in the form:
 </p>
 
 <blockquote>
@@ -81,19 +81,19 @@ that is, an URL is a string in the form:
 
 <p>
 The following constants in the namespace can be set to control the default behavior of
-the FTP module: 
+the FTP module:
 </p>
 
 <ul>
-<li> <tt>PASSWORD</tt>: default anonymous password.
-<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;
-<li> <tt>USER</tt>: default anonymous user;
+<li> <tt>PASSWORD</tt>: default anonymous password.</li>
+<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;</li>
+<li> <tt>USER</tt>: default anonymous user;</li>
 </ul>
 
 
 <!-- ftp.get ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=get>
+<p class="name" id="get">
 ftp.<b>get(</b>url<b>)</b><br>
 ftp.<b>get{</b><br>
 &nbsp;&nbsp;host = <i>string</i>,<br>
@@ -109,19 +109,19 @@ ftp.<b>get{</b><br>
 <b>}</b>
 </p>
 
-<p class=description>
+<p class="description">
 The <tt>get</tt> function has two forms. The simple form has fixed
 functionality: it downloads the contents of a URL and returns it as a
 string. The generic form allows a <em>lot</em> more control, as explained
 below.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 If the argument of the <tt>get</tt> function is a table, the function
-expects at least the fields <tt>host</tt>, <tt>sink</tt>, and one of 
+expects at least the fields <tt>host</tt>, <tt>sink</tt>, and one of
 <tt>argument</tt> or <tt>path</tt> (<tt>argument</tt> takes
 precedence). <tt>Host</tt> is the server to connect to. <tt>Sink</tt> is
-the <em>simple</em> 
+the <em>simple</em>
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 sink that will receive the downloaded data. <tt>Argument</tt> or
 <tt>path</tt> give the target path to the resource in the server. The
@@ -129,28 +129,28 @@ optional arguments are the following:
 </p>
 <ul>
 <li><tt>user</tt>, <tt>password</tt>: User name and password used for
-authentication. Defaults to "<tt>ftp:anonymous@anonymous.org</tt>";
+authentication. Defaults to "<tt>ftp:anonymous@anonymous.org</tt>";</li>
 <li><tt>command</tt>: The FTP command used to obtain data. Defaults to
-"<tt>retr</tt>", but see example below;
-<li><tt>port</tt>: The port to used for the control connection. Defaults to 21;
+"<tt>retr</tt>", but see example below;</li>
+<li><tt>port</tt>: The port to used for the control connection. Defaults to 21;</li>
 <li><tt>type</tt>: The transfer mode. Can take values "<tt>i</tt>" or
-"<tt>a</tt>". Defaults to whatever is the server default;
-<li><tt>step</tt>: 
+"<tt>a</tt>". Defaults to whatever is the server default;</li>
+<li><tt>step</tt>:
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 pump step function used to pass data from the
-server to the sink. Defaults to the LTN12 <tt>pump.step</tt> function;
+server to the sink. Defaults to the LTN12 <tt>pump.step</tt> function;</li>
 <li><tt>create</tt>: An optional function to be used instead of
-<a href=tcp.html#socket.tcp><tt>socket.tcp</tt></a> when the communications socket is created. 
+<a href="tcp.html#socket.tcp"><tt>socket.tcp</tt></a> when the communications socket is created.</li>
 </ul>
 
-<p class=return>
+<p class="return">
 If successful, the simple version returns the URL  contents as a
 string, and the generic function returns 1.  In case of error,  both
 functions return <b><tt>nil</tt></b> and an error message describing the
-error.  
+error.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the ftp support
 local ftp = require("socket.ftp")
 
@@ -159,7 +159,7 @@ local ftp = require("socket.ftp")
 f, e = ftp.get("ftp://ftp.tecgraf.puc-rio.br/pub/lua/lua.tar.gz;type=i")
 </pre>
 
-<pre class=example>
+<pre class="example">
 -- load needed modules
 local ftp = require("socket.ftp")
 local ltn12 = require("ltn12")
@@ -178,7 +178,7 @@ end
 
 <!-- put ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=put>
+<p class="name" id="put">
 ftp.<b>put(</b>url, content<b>)</b><br>
 ftp.<b>put{</b><br>
 &nbsp;&nbsp;host = <i>string</i>,<br>
@@ -194,57 +194,57 @@ ftp.<b>put{</b><br>
 <b>}</b>
 </p>
 
-<p class=description>
+<p class="description">
 The <tt>put</tt> function has two forms. The simple form has fixed
 functionality: it uploads a string of content into a URL. The generic form
-allows a <em>lot</em> more control, as explained below.  
+allows a <em>lot</em> more control, as explained below.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 If the argument of the <tt>put</tt> function is a table, the function
-expects at least the fields <tt>host</tt>, <tt>source</tt>, and one of 
+expects at least the fields <tt>host</tt>, <tt>source</tt>, and one of
 <tt>argument</tt> or <tt>path</tt> (<tt>argument</tt> takes
 precedence). <tt>Host</tt> is the server to connect to. <tt>Source</tt> is
-the <em>simple</em> 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
-source that will provide the contents to be uploaded. 
+the <em>simple</em>
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
+source that will provide the contents to be uploaded.
 <tt>Argument</tt> or
 <tt>path</tt> give the target path to the resource in the server. The
 optional arguments are the following:
 </p>
 <ul>
 <li><tt>user</tt>, <tt>password</tt>: User name and password used for
-authentication. Defaults to "<tt>ftp:anonymous@anonymous.org</tt>";
+authentication. Defaults to "<tt>ftp:anonymous@anonymous.org</tt>";</li>
 <li><tt>command</tt>: The FTP command used to send data. Defaults to
-"<tt>stor</tt>", but see example below;
-<li><tt>port</tt>: The port to used for the control connection. Defaults to 21;
+"<tt>stor</tt>", but see example below;</li>
+<li><tt>port</tt>: The port to used for the control connection. Defaults to 21;</li>
 <li><tt>type</tt>: The transfer mode. Can take values "<tt>i</tt>" or
-"<tt>a</tt>". Defaults to whatever is the server default;
-<li><tt>step</tt>: 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+"<tt>a</tt>". Defaults to whatever is the server default;</li>
+<li><tt>step</tt>:
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 pump step function used to pass data from the
-server to the sink. Defaults to the LTN12 <tt>pump.step</tt> function;
+server to the sink. Defaults to the LTN12 <tt>pump.step</tt> function;</li>
 <li><tt>create</tt>: An optional function to be used instead of
-<a href=tcp.html#socket.tcp><tt>socket.tcp</tt></a> when the communications socket is created. 
+<a href="tcp.html#socket.tcp"><tt>socket.tcp</tt></a> when the communications socket is created.</li>
 </ul>
 
-<p class=return>
+<p class="return">
 Both functions return 1 if successful, or <b><tt>nil</tt></b> and an error
 message describing the reason for failure.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the ftp support
 local ftp = require("socket.ftp")
 
 -- Log as user "fulano" on server "ftp.example.com",
--- using password "silva", and store a file "README" with contents 
+-- using password "silva", and store a file "README" with contents
 -- "wrong password, of course"
-f, e = ftp.put("ftp://fulano:silva@ftp.example.com/README", 
+f, e = ftp.put("ftp://fulano:silva@ftp.example.com/README",
     "wrong password, of course")
 </pre>
 
-<pre class=example>
+<pre class="example">
 -- load the ftp support
 local ftp = require("socket.ftp")
 local ltn12 = require("ltn12")
@@ -253,7 +253,7 @@ local ltn12 = require("ltn12")
 -- using password "silva", and append to the remote file "LOG", sending the
 -- contents of the local file "LOCAL-LOG"
 f, e = ftp.put{
-  host = "ftp.example.com", 
+  host = "ftp.example.com",
   user = "fulano",
   password = "silva",
   command = "appe",
@@ -265,15 +265,15 @@ f, e = ftp.put{
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 <p>
 <small>
diff --git a/doc/http.html b/doc/http.html
index 78f785a..52b8a30 100644
--- a/doc/http.html
+++ b/doc/http.html
@@ -1,10 +1,10 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
 <meta name="description" content="LuaSocket: HTTP support">
-<meta name="keywords" content="Lua, HTTP, Library, WWW, Browser, Network, Support"> 
+<meta name="keywords" content="Lua, HTTP, Library, WWW, Browser, Network, Support">
 <title>LuaSocket: HTTP support</title>
 <link rel="stylesheet" href="reference.css" type="text/css">
 </head>
@@ -13,22 +13,22 @@
 
 <!-- header ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,12 +36,12 @@
 
 <!-- http +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id="http">HTTP</h2> 
+<h2 id="http">HTTP</h2>
 
 <p>
 HTTP (Hyper Text  Transfer Protocol) is the protocol  used to exchange
 information  between  web-browsers and  servers.  The  <tt>http</tt>
-namespace offers  full support for the client  side of the HTTP  
+namespace offers  full support for the client  side of the HTTP
 protocol (i.e.,
 the facilities that would be  used by a web-browser implementation). The
 implementation    conforms     to    the    HTTP/1.1     standard,
@@ -50,16 +50,16 @@ implementation    conforms     to    the    HTTP/1.1     standard,
 
 <p>
 The module exports functions that provide HTTP functionality in different
-levels of abstraction. From the simple 
+levels of abstraction. From the simple
 string oriented requests, through generic
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> based, down to even lower-level if you bother to look through the source code.
 </p>
 
-<p> 
+<p>
 To obtain the <tt>http</tt> namespace, run:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- loads the HTTP module and any libraries it requires
 local http = require("socket.http")
 </pre>
@@ -67,12 +67,12 @@ local http = require("socket.http")
 <p>
 URLs must conform to
 <a href="http://www.ietf.org/rfc/rfc1738.txt">RFC 1738</a>,
-that is, an URL is a string in the form: 
+that is, an URL is a string in the form:
 </p>
 
 <blockquote>
 <pre>
-[http://][&lt;user&gt;[:&lt;password&gt;]@]&lt;host&gt;[:&lt;port&gt;][/&lt;path&gt;] 
+[http://][&lt;user&gt;[:&lt;password&gt;]@]&lt;host&gt;[:&lt;port&gt;][/&lt;path&gt;]
 </pre>
 </blockquote>
 
@@ -97,34 +97,34 @@ headers = {<br>
 <p>
 Field names are case insensitive (as specified by the standard) and all
 functions work with lowercase field names (but see
-<a href=socket.html#headers.canonic><tt>socket.headers.canonic</tt></a>).
+<a href="socket.html#headers.canonic"><tt>socket.headers.canonic</tt></a>).
 Field values are left unmodified.
 </p>
 
-<p class=note>
+<p class="note">
 Note: MIME headers are independent of order. Therefore, there is no problem
-in representing them in a Lua table. 
+in representing them in a Lua table.
 </p>
 
 <p>
 The following constants can be set to control the default behavior of
-the HTTP module: 
+the HTTP module:
 </p>
 
 <ul>
-<li> <tt>PROXY</tt>: default proxy used for connections;
-<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;
-<li> <tt>USERAGENT</tt>: default user agent reported to server.
+<li> <tt>PROXY</tt>: default proxy used for connections;</li>
+<li> <tt>TIMEOUT</tt>: sets the timeout for all I/O operations;</li>
+<li> <tt>USERAGENT</tt>: default user agent reported to server.</li>
 </ul>
 
-<p class=note id="post">
+<p class="note">
 Note: These constants are global. Changing them will also
 change the behavior other code that might be using LuaSocket.
 </p>
 
 <!-- http.request ++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="request">
+<p class="name" id="request">
 http.<b>request(</b>url [, body]<b>)</b><br>
 http.<b>request{</b><br>
 &nbsp;&nbsp;url = <i>string</i>,<br>
@@ -140,26 +140,26 @@ http.<b>request{</b><br>
 <b>}</b>
 </p>
 
-<p class=description>
-The request function has two forms. The simple form downloads 
-a URL using the <tt>GET</tt> or <tt>POST</tt> method and is based 
-on strings. The generic form performs any HTTP method and is 
-<a href=http://lua-users.org/wiki/FiltersSourcesAndSinks>LTN12</a> based.
+<p class="description">
+The request function has two forms. The simple form downloads
+a URL using the <tt>GET</tt> or <tt>POST</tt> method and is based
+on strings. The generic form performs any HTTP method and is
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> based.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 If the first argument of the <tt>request</tt> function is a string, it
 should be an <tt>url</tt>. In that case, if a <tt>body</tt>
 is provided as a string, the function will perform a <tt>POST</tt> method
 in the <tt>url</tt>. Otherwise, it performs a <tt>GET</tt> in the
-<tt>url</tt> 
+<tt>url</tt>
 </p>
 
-<p class=parameters>
-If the first argument is instead a table, the most important fields are 
+<p class="parameters">
+If the first argument is instead a table, the most important fields are
 the <tt>url</tt> and the <em>simple</em>
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
-<tt>sink</tt> that will receive the downloaded content.  
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
+<tt>sink</tt> that will receive the downloaded content.
 Any part of the <tt>url</tt> can be overridden by including
 the appropriate field in the request table.
 If authentication information is provided, the function
@@ -169,49 +169,51 @@ function discards the downloaded data. The optional parameters are the
 following:
 </p>
 <ul>
-<li><tt>method</tt>: The HTTP request method. Defaults to "GET"; 
-<li><tt>headers</tt>: Any additional HTTP headers to send with the request; 
-<li><tt>source</tt>: <em>simple</em> 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+<li><tt>method</tt>: The HTTP request method. Defaults to "GET";</li>
+<li><tt>headers</tt>: Any additional HTTP headers to send with the request;</li>
+<li><tt>source</tt>: <em>simple</em>
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 source to provide the request body. If there
 is a body, you need to provide an appropriate "<tt>content-length</tt>"
 request header field, or the function will attempt to send the body as
-"<tt>chunked</tt>" (something few servers support). Defaults to the empty source; 
-<li><tt>step</tt>: 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
-pump step function used to move data.  
-Defaults to the LTN12 <tt>pump.step</tt> function.
-<li><tt>proxy</tt>: The URL of a proxy server to use. Defaults to no proxy; 
-<li><tt>redirect</tt>: Set to <tt><b>false</b></tt> to prevent the 
-function from  automatically following 301 or 302 server redirect messages; 
+"<tt>chunked</tt>" (something few servers support). Defaults to the empty source;</li>
+<li><tt>step</tt>:
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
+pump step function used to move data.
+Defaults to the LTN12 <tt>pump.step</tt> function.</li>
+<li><tt>proxy</tt>: The URL of a proxy server to use. Defaults to no proxy;</li>
+<li><tt>redirect</tt>: Set to <tt><b>false</b></tt> to prevent the
+function from  automatically following 301 or 302 server redirect messages;</li>
 <li><tt>create</tt>: An optional function to be used instead of
-<a href=tcp.html#socket.tcp><tt>socket.tcp</tt></a> when the communications socket is created. 
-<li><tt>maxredirects</tt>: An optional number specifying the maximum number of redirects to follow.  Defaults to <tt>5</tt> if not specified.  A boolean <tt>false</tt> value means no maximum (unlimited).
+<a href="tcp.html#socket.tcp"><tt>socket.tcp</tt></a> when the communications socket is created.</li>
+<li><tt>maxredirects</tt>: An optional number specifying the maximum number of
+    redirects to follow.  Defaults to <tt>5</tt> if not specified. A boolean
+    <tt>false</tt> value means no maximum (unlimited).</li>
 </ul>
 
-<p class=return>
+<p class="return">
 In case of failure, the function returns <tt><b>nil</b></tt> followed by an
-error message. If successful, the simple form returns the response 
+error message. If successful, the simple form returns the response
 body as a string, followed by the response status code, the response
 headers and the response status line. The generic function returns the same
 information, except the first return value is just the number 1 (the body
 goes to the <tt>sink</tt>).
 </p>
 
-<p class=return>
-Even  when the server fails to provide the contents of the requested URL (URL not  found, for  example), 
+<p class="return">
+Even  when the server fails to provide the contents of the requested URL (URL not  found, for  example),
 it usually returns a message body (a web page informing the
 URL  was  not found  or  some  other useless  page).  To  make sure  the
 operation was successful, check  the returned status <tt>code</tt>. For
 a  list  of  the  possible  values  and  their  meanings,  refer  to  <a
-href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>. 
+href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>.
 </p>
 
-<p class=description>
+<p class="description">
 Here are a few examples with the simple interface:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the http module
 local io = require("io")
 local http = require("socket.http")
@@ -219,15 +221,15 @@ local ltn12 = require("ltn12")
 
 -- connect to server "www.cs.princeton.edu" and retrieves this manual
 -- file from "~diego/professional/luasocket/http.html" and print it to stdout
-http.request{ 
-    url = "http://www.cs.princeton.edu/~diego/professional/luasocket/http.html", 
+http.request{
+    url = "http://www.cs.princeton.edu/~diego/professional/luasocket/http.html",
     sink = ltn12.sink.file(io.stdout)
 }
 
 -- connect to server "www.example.com" and tries to retrieve
 -- "/private/index.html". Fails because authentication is needed.
 b, c, h = http.request("http://www.example.com/private/index.html")
--- b returns some useless page telling about the denied access, 
+-- b returns some useless page telling about the denied access,
 -- h returns authentication information
 -- and c returns with value 401 (Authentication Required)
 
@@ -237,11 +239,11 @@ r, e = http.request("http://wrong.host/")
 -- r is nil, and e returns with value "host not found"
 </pre>
 
-<p class=description>
+<p class="description">
 And here is an example using the generic interface:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the http module
 http = require("socket.http")
 
@@ -263,7 +265,7 @@ r, c, h = http.request {
 -- }
 </pre>
 
-<p class=note id="post"> 
+<p class="note" id="post">
 Note: When sending a POST request, simple interface adds a
 "<tt>Content-type: application/x-www-form-urlencoded</tt>"
 header to the request. This is the type used by
@@ -271,21 +273,21 @@ HTML forms. If you need another type, use the generic
 interface.
 </p>
 
-<p class=note id="authentication"> 
+<p class="note" id="authentication">
 Note: Some URLs are protected by their
 servers from anonymous download. For those URLs, the server must receive
 some  sort of  authentication along  with the  request or  it will  deny
-download and return status "401&nbsp;Authentication Required". 
+download and return status "401&nbsp;Authentication Required".
 </p>
 
-<p class=note>
+<p class="note">
 The  HTTP/1.1 standard  defines  two authentication  methods: the  Basic
 Authentication  Scheme  and  the   Digest  Authentication  Scheme,  both
 explained in detail in
 <a href="http://www.ietf.org/rfc/rfc2068.txt">RFC 2068</a>.
 </p>
 
-<p class=note>The Basic  Authentication   Scheme  sends   
+<p class="note">The Basic  Authentication   Scheme  sends
 <tt>&lt;user&gt;</tt>  and
 <tt>&lt;password&gt;</tt>  unencrypted to  the server  and is  therefore
 considered unsafe.  Unfortunately, by  the time of  this implementation,
@@ -294,7 +296,7 @@ Therefore,   this  is   the  method   used  by   the  toolkit   whenever
 authentication is required.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load required modules
 http = require("socket.http")
 mime = require("mime")
@@ -314,15 +316,15 @@ r, c = http.request {
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 <p>
 <small>
diff --git a/doc/index.html b/doc/index.html
index 7d81b41..e92b4d4 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
@@ -13,22 +13,22 @@
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,13 +36,13 @@
 
 <!-- whatis +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=whatis>What is LuaSocket?</h2>
+<h2 id="whatis">What is LuaSocket?</h2>
 
 <p>
 LuaSocket  is a  <a href="http://www.lua.org">Lua</a>  extension library
 that is composed by two parts: a C core that provides  support for the TCP
 and UDP transport layers, and a set of Lua modules that add support for
-functionality commonly needed by applications that deal with the Internet. 
+functionality commonly needed by applications that deal with the Internet.
 </p>
 
 <p>
@@ -52,43 +52,43 @@ properly initialized by the interpreter in use. The code has been tested
 and runs well on several Windows and UNIX platforms. </p>
 
 <p>
-Among the support modules, the most commonly used implement the 
-<a href=smtp.html>SMTP</a>
-(sending  e-mails),  
-<a href=http.html>HTTP</a>
-(WWW access)  and  
-<a href=ftp.html>FTP</a>  
+Among the support modules, the most commonly used implement the
+<a href="smtp.html">SMTP</a>
+(sending  e-mails),
+<a href="http.html">HTTP</a>
+(WWW access)  and
+<a href="ftp.html">FTP</a>
 (uploading  and downloading files) client
 protocols. These provide a very natural and generic interface to the
-functionality defined by each protocol. 
-In addition, you will find that the 
-<a href=mime.html>MIME</a> (common encodings), 
-<a href=url.html>URL</a> 
-(anything you could possible want to do with one) and 
-<a href=ltn12.html>LTN12</a> 
-(filters, sinks, sources and pumps) modules can be very handy. 
+functionality defined by each protocol.
+In addition, you will find that the
+<a href="mime.html">MIME</a> (common encodings),
+<a href="url.html">URL</a>
+(anything you could possible want to do with one) and
+<a href="ltn12.html">LTN12</a>
+(filters, sinks, sources and pumps) modules can be very handy.
 </p>
 
 <p>
-The library is available under the same  
+The library is available under the same
 <a href="http://www.lua.org/copyright.html">
 terms and conditions</a> as the Lua language, the MIT license. The idea is
-that if you can use Lua in a project, you should also be able to use 
+that if you can use Lua in a project, you should also be able to use
 LuaSocket.
 </p>
 
 <p>
 Copyright &copy; 1999-2013 Diego Nehab. All rights reserved. <br>
-Author: <A href="http://www.impa.br/~diego">Diego Nehab</a>
+Author: <a href="http://www.impa.br/~diego">Diego Nehab</a>
 </p>
 
 <!-- download +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=download>Download</h2>
+<h2 id="download">Download</h2>
 
 <p>
-LuaSocket version 3.0-rc1 is now available for download! 
-It is compatible with  Lua&nbsp;5.1 and 5.2, and has    
+LuaSocket version 3.0-rc1 is now available for download!
+It is compatible with  Lua&nbsp;5.1 and 5.2, and has
 been tested on Windows&nbsp;XP, Linux, and Mac OS X. Chances
 are it works well on most UNIX distributions and Windows flavors.
 </p>
@@ -96,19 +96,19 @@ are it works well on most UNIX distributions and Windows flavors.
 <p>
 The current version of the library can be found at
 the <a href="https://github.com/diegonehab/luasocket">LuaSocket
-project page</a> on GitHub. Besides the full C and Lua source code 
-for the library, the distribution contains several examples, 
+project page</a> on GitHub. Besides the full C and Lua source code
+for the library, the distribution contains several examples,
 this user's manual and basic test procedures.
 </p>
 
 <p> Take a look at the <a
-href=installation.html>installation</a> section of the
+href="installation.html">installation</a> section of the
 manual to find out how to properly install the library.
 </p>
 
 <!-- thanks +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=thanks>Special thanks</h2>
+<h2 id="thanks">Special thanks</h2>
 
 <p>
 This marks the first release of LuaSocket that
@@ -118,85 +118,85 @@ convinced me it was time for a release including IPv6 and
 Lua 5.2 support. It was more work than we anticipated.
 Special thanks to Sam Roberts, Florian Zeitz, and Paul
 Aurich, Liam Devine, Alexey Melnichuk, and everybody else
-that has helped bring this library back to life. 
+that has helped bring this library back to life.
 </p>
 
 <!-- whatsnew +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=new>What's New</h2>
+<h2 id="new">What's New</h2>
 
 <p>
 Main changes for LuaSocket&nbsp;3.0-rc1 are IPv6 support
-and Lua&nbsp;5.2 compatibility. 
+and Lua&nbsp;5.2 compatibility.
 </p>
 
 <ul>
-<li> Added: Compatible with Lua&nbsp;5.2 
+<li> Added: Compatible with Lua&nbsp;5.2</li>
 <ul>
 <li> Note that unless you define <tt>LUA_COMPAT_MODULE</tt>,
-package tables will <em>not</em> be exported as globals!
+package tables will <em>not</em> be exported as globals!</li>
 </ul>
-<li> Added: IPv6 support;
+<li> Added: IPv6 support;</li>
 <ul>
-<li> <tt>Socket.connect</tt> and <tt>socket.bind</tt> support IPv6 addresses;
+<li> <tt>Socket.connect</tt> and <tt>socket.bind</tt> support IPv6 addresses;</li>
 <li> <tt>Getpeername</tt> and <tt>getsockname</tt> support
-IPv6 addresses, and return the socket family as a third value;
-<li> URL module updated to support IPv6 host names;
-<li> New <tt>socket.tcp6</tt> and <tt>socket.udp6</tt> functions;
-<li> New <tt>socket.dns.getaddrinfo</tt> and 
-    <tt>socket.dns.getnameinfo</tt> functions;
+IPv6 addresses, and return the socket family as a third value;</li>
+<li> URL module updated to support IPv6 host names;</li>
+<li> New <tt>socket.tcp6</tt> and <tt>socket.udp6</tt> functions;</li>
+<li> New <tt>socket.dns.getaddrinfo</tt> and
+    <tt>socket.dns.getnameinfo</tt> functions;</li>
 </ul>
-<li> Added: <tt>getoption</tt> method;
-<li> Fixed: <tt>url.unescape</tt> was returning additional values;
-<li> Fixed: <tt>mime.qp</tt>, <tt>mime.unqp</tt>, 
+<li> Added: <tt>getoption</tt> method;</li>
+<li> Fixed: <tt>url.unescape</tt> was returning additional values;</li>
+<li> Fixed: <tt>mime.qp</tt>, <tt>mime.unqp</tt>,
     <tt>mime.b64</tt>, and <tt>mime.unb64</tt> could
-    mistaking their own stack slots for functions arguments;
-<li> Fixed: Receiving zero-length datagram is now possible;
-<li> Improved: Hidden all internal library symbols;
-<li> Improved: Better error messages;
-<li> Improved: Better documentation of socket options.
+    mistaking their own stack slots for functions arguments;</li>
+<li> Fixed: Receiving zero-length datagram is now possible;</li>
+<li> Improved: Hidden all internal library symbols;</li>
+<li> Improved: Better error messages;</li>
+<li> Improved: Better documentation of socket options.</li>
 <li> Fixed: manual sample of HTTP authentication now uses correct
-     "authorization" header (Alexandre Ittner);
-<li> Fixed: failure on bind() was destroying the socket (Sam Roberts);
+     "authorization" header (Alexandre Ittner);</li>
+<li> Fixed: failure on bind() was destroying the socket (Sam Roberts);</li>
 <li> Fixed: receive() returns immediatelly if prefix can satisfy
-     bytes requested (M Joonas Pihlaja);
+     bytes requested (M Joonas Pihlaja);</li>
 <li> Fixed: multicast didn't work on Windows, or anywhere
-     else for that matter (Herbert Leuwer, Adrian Sietsma);
+     else for that matter (Herbert Leuwer, Adrian Sietsma);</li>
 <li> Fixed: select() now reports an error when called with more
-     sockets than FD_SETSIZE (Lorenzo Leonini);
+     sockets than FD_SETSIZE (Lorenzo Leonini);</li>
 <li> Fixed: manual links to home.html changed to index.html
-(Robert Hahn);
+(Robert Hahn);</li>
 <li> Fixed: mime.unb64() would return an empty string on results that started
-     with a null character (Robert Raschke);
-<li> Fixed: HTTP now automatically redirects on 303 and 307 (Jonathan Gray);
+     with a null character (Robert Raschke);</li>
+<li> Fixed: HTTP now automatically redirects on 303 and 307 (Jonathan Gray);</li>
 <li> Fixed: calling sleep() with negative numbers could
-     block forever, wasting CPU. Now it returns immediately (MPB);
+     block forever, wasting CPU. Now it returns immediately (MPB);</li>
 <li> Improved: FTP commands are now sent in upper case to
-     help buggy servers (Anders Eurenius);
+     help buggy servers (Anders Eurenius);</li>
 <li> Improved: known headers now sent in canonic
-     capitalization to help buggy servers (Joseph Stewart);
-<li> Improved: Clarified tcp:receive() in the manual (MPB);
-<li> Improved: Decent makefiles (LHF).
-<li> Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).
+     capitalization to help buggy servers (Joseph Stewart);</li>
+<li> Improved: Clarified tcp:receive() in the manual (MPB);</li>
+<li> Improved: Decent makefiles (LHF).</li>
+<li> Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).</li>
 </ul>
 
 <!-- old ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=old>Old Versions</h2>
+<h2 id="old">Old Versions</h2>
 
 <p>
 All  previous versions  of the  LuaSocket library  can be  downloaded <a
 href="http://www.impa.br/~diego/software/luasocket/old">
 here</a>. Although these  versions are  no longer  supported, they  are
-still available for those that have compatibility issues. 
+still available for those that have compatibility issues.
 </p>
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
diff --git a/doc/ltn12.html b/doc/ltn12.html
index ee2502f..fe3e3a0 100644
--- a/doc/ltn12.html
+++ b/doc/ltn12.html
@@ -1,4 +1,4 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
@@ -14,22 +14,22 @@ Pump, Support, Library">
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -37,7 +37,7 @@ Pump, Support, Library">
 
 <!-- ltn12 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=ltn12>LTN12</h2> 
+<h2 id="ltn12">LTN12</h2>
 
 <p> The <tt>ltn12</tt> namespace implements the ideas described in
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">
@@ -46,11 +46,11 @@ functions. Please refer to the LTN for a deeper explanation of the
 functionality provided by this module.
 </p>
 
-<p> 
+<p>
 To obtain the <tt>ltn12</tt> namespace, run:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- loads the LTN21 module
 local ltn12 = require("ltn12")
 </pre>
@@ -61,32 +61,32 @@ local ltn12 = require("ltn12")
 
 <!-- chain ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="filter.chain">
-ltn12.filter.<b>chain(</b>filter<sub>1</sub>, filter<sub>2</sub> 
+<p class="name" id="filter.chain">
+ltn12.filter.<b>chain(</b>filter<sub>1</sub>, filter<sub>2</sub>
 [, ... filter<sub>N</sub>]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns a filter that passes all data it receives through each of a
-series of given filters. 
+series of given filters.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Filter<sub>1</sub></tt> to <tt>filter<sub>N</sub></tt> are simple
-filters. 
+filters.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns the chained filter.
 </p>
 
-<p class=note>
+<p class="note">
 The nesting of filters can be arbitrary. For instance, the useless filter
 below doesn't do anything but return the data that was passed to it,
 unaltered.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load required modules
 local ltn12 = require("ltn12")
 local mime = require("mime")
@@ -102,26 +102,26 @@ id = ltn12.filter.chain(
 
 <!-- cycle ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="filter.cycle">
+<p class="name" id="filter.cycle">
 ltn12.filter.<b>cycle(</b>low [, ctx, extra]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns a high-level filter that cycles though a low-level filter by
-passing it each chunk and updating a context between calls. 
+passing it each chunk and updating a context between calls.
 </p>
 
-<p class=parameters>
-<tt>Low</tt> is the low-level filter to be cycled, 
+<p class="parameters">
+<tt>Low</tt> is the low-level filter to be cycled,
 <tt>ctx</tt> is the initial context and <tt>extra</tt> is any extra
 argument the low-level filter might take.
 </p>
 
-<p class=return>
-The function returns the high-level filter. 
+<p class="return">
+The function returns the high-level filter.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the ltn12 module
 local ltn12 = require("ltn12")
 
@@ -137,15 +137,15 @@ end
 
 <!-- all ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="pump.all">
+<p class="name" id="pump.all">
 ltn12.pump.<b>all(</b>source, sink<b>)</b>
 </p>
 
-<p class=description>
-Pumps <em>all</em> data from a <tt>source</tt> to a <tt>sink</tt>. 
+<p class="description">
+Pumps <em>all</em> data from a <tt>source</tt> to a <tt>sink</tt>.
 </p>
 
-<p class=return>
+<p class="return">
 If successful, the function returns a value that evaluates to
 <b><tt>true</tt></b>. In case
 of error, the function returns a <b><tt>false</tt></b> value, followed by an error message.
@@ -153,15 +153,15 @@ of error, the function returns a <b><tt>false</tt></b> value, followed by an err
 
 <!-- step +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="pump.step">
+<p class="name" id="pump.step">
 ltn12.pump.<b>step(</b>source, sink<b>)</b>
 </p>
 
-<p class=description>
-Pumps <em>one</em> chunk of data from a <tt>source</tt> to a <tt>sink</tt>. 
+<p class="description">
+Pumps <em>one</em> chunk of data from a <tt>source</tt> to a <tt>sink</tt>.
 </p>
 
-<p class=return>
+<p class="return">
 If successful, the function returns a value that evaluates to
 <b><tt>true</tt></b>. In case
 of error, the function returns a <b><tt>false</tt></b> value, followed by an error message.
@@ -173,52 +173,52 @@ of error, the function returns a <b><tt>false</tt></b> value, followed by an err
 
 <!-- chain ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.chain">
+<p class="name" id="sink.chain">
 ltn12.sink.<b>chain(</b>filter, sink<b>)</b>
 </p>
 
-<p class=description>
-Creates and returns a new sink that passes data through a <tt>filter</tt> before sending it to a given <tt>sink</tt>. 
+<p class="description">
+Creates and returns a new sink that passes data through a <tt>filter</tt> before sending it to a given <tt>sink</tt>.
 </p>
 
 <!-- error ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.error">
+<p class="name" id="sink.error">
 ltn12.sink.<b>error(</b>message<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns a sink that aborts transmission with the error
 <tt>message</tt>.
 </p>
 
 <!-- file +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.file">
+<p class="name" id="sink.file">
 ltn12.sink.<b>file(</b>handle, message<b>)</b>
 </p>
 
-<p class=description>
-Creates a sink that sends data to a file. 
+<p class="description">
+Creates a sink that sends data to a file.
 </p>
 
-<p class=parameters>
-<tt>Handle</tt> is a file handle. If <tt>handle</tt> is <tt><b>nil</b></tt>, 
-<tt>message</tt> should give the reason for failure. 
+<p class="parameters">
+<tt>Handle</tt> is a file handle. If <tt>handle</tt> is <tt><b>nil</b></tt>,
+<tt>message</tt> should give the reason for failure.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns a sink that sends all data to the given <tt>handle</tt>
 and closes the file when done, or a sink that aborts the transmission with
 the error <tt>message</tt>
 </p>
 
-<p class=note>
-In the following example, notice how the prototype is designed to 
+<p class="note">
+In the following example, notice how the prototype is designed to
 fit nicely with the <tt>io.open</tt> function.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the ltn12 module
 local ltn12 = require("ltn12")
 
@@ -231,45 +231,45 @@ ltn12.pump.all(
 
 <!-- null +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.null">
+<p class="name" id="sink.null">
 ltn12.sink.<b>null()</b>
 </p>
 
-<p class=description>
-Returns a sink that ignores all data it receives. 
+<p class="description">
+Returns a sink that ignores all data it receives.
 </p>
 
 <!-- simplify +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.simplify">
+<p class="name" id="sink.simplify">
 ltn12.sink.<b>simplify(</b>sink<b>)</b>
 </p>
 
-<p class=description>
-Creates and returns a simple sink given a fancy <tt>sink</tt>. 
+<p class="description">
+Creates and returns a simple sink given a fancy <tt>sink</tt>.
 </p>
 
 <!-- table ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="sink.table">
+<p class="name" id="sink.table">
 ltn12.sink.<b>table(</b>[table]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates a sink that stores all chunks in a table. The chunks can later be
 efficiently concatenated into a single string.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Table</tt> is used to hold the chunks. If
-<tt><b>nil</b></tt>, the function creates its own table. 
+<tt><b>nil</b></tt>, the function creates its own table.
 </p>
 
-<p class=return>
-The function returns the sink and the table used to store the chunks. 
+<p class="return">
+The function returns the sink and the table used to store the chunks.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load needed modules
 local http = require("socket.http")
 local ltn12 = require("ltn12")
@@ -291,89 +291,89 @@ end
 
 <!-- cat ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.cat">
+<p class="name" id="source.cat">
 ltn12.source.<b>cat(</b>source<sub>1</sub> [, source<sub>2</sub>, ...,
 source<sub>N</sub>]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates a new source that produces the concatenation of the data produced
-by a number of sources. 
+by a number of sources.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Source<sub>1</sub></tt> to <tt>source<sub>N</sub></tt> are the original
-sources. 
+sources.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns the new source.
 </p>
 
 <!-- chain ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.chain">
+<p class="name" id="source.chain">
 ltn12.source.<b>chain(</b>source, filter<b>)</b>
 </p>
 
-<p class=description>
-Creates a new <tt>source</tt> that passes data through a <tt>filter</tt> 
-before returning it. 
+<p class="description">
+Creates a new <tt>source</tt> that passes data through a <tt>filter</tt>
+before returning it.
 </p>
 
-<p class=return>
+<p class="return">
 The function returns the new source.
 </p>
 
 <!-- empty ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.empty">
+<p class="name" id="source.empty">
 ltn12.source.<b>empty()</b>
 </p>
 
-<p class=description>
-Creates and returns an empty source. 
+<p class="description">
+Creates and returns an empty source.
 </p>
 
 <!-- error ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.error">
+<p class="name" id="source.error">
 ltn12.source.<b>error(</b>message<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns a source that aborts transmission with the error
 <tt>message</tt>.
 </p>
 
 <!-- file +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.file">
+<p class="name" id="source.file">
 ltn12.source.<b>file(</b>handle, message<b>)</b>
 </p>
 
-<p class=description>
-Creates a source that produces the contents of a file. 
+<p class="description">
+Creates a source that produces the contents of a file.
 </p>
 
-<p class=parameters>
-<tt>Handle</tt> is a file handle. If <tt>handle</tt> is <tt><b>nil</b></tt>, 
-<tt>message</tt> should give the reason for failure. 
+<p class="parameters">
+<tt>Handle</tt> is a file handle. If <tt>handle</tt> is <tt><b>nil</b></tt>,
+<tt>message</tt> should give the reason for failure.
 </p>
 
-<p class=return>
-The function returns a source that reads chunks of data from 
+<p class="return">
+The function returns a source that reads chunks of data from
 given <tt>handle</tt> and returns it to the user,
 closing the file when done, or a source that aborts the transmission with
 the error <tt>message</tt>
 </p>
 
-<p class=note>
-In the following example, notice how the prototype is designed to 
+<p class="note">
+In the following example, notice how the prototype is designed to
 fit nicely with the <tt>io.open</tt> function.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the ltn12 module
 local ltn12 = require("ltn12")
 
@@ -386,41 +386,41 @@ ltn12.pump.all(
 
 <!-- simplify +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.simplify">
+<p class="name" id="source.simplify">
 ltn12.source.<b>simplify(</b>source<b>)</b>
 </p>
 
-<p class=description>
-Creates and returns a simple source given a fancy <tt>source</tt>. 
+<p class="description">
+Creates and returns a simple source given a fancy <tt>source</tt>.
 </p>
 
 <!-- string +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.string">
+<p class="name" id="source.string">
 ltn12.source.<b>string(</b>string<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns a source that produces the contents of a
-<tt>string</tt>, chunk by chunk. 
+<tt>string</tt>, chunk by chunk.
 </p>
 
 <!-- table +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="source.table">
+<p class="name" id="source.table">
 ltn12.source.<b>table(</b>table<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns a source that produces the numerically-indexed values of a <tt>table</tt> successively beginning at 1.  The source returns nil (end-of-stream) whenever a nil value is produced by the current index, which proceeds forward regardless.
 </p>
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/mime.html b/doc/mime.html
index 8cb3507..ff4d8e8 100644
--- a/doc/mime.html
+++ b/doc/mime.html
@@ -1,10 +1,10 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
 <meta name="description" content="LuaSocket: MIME support">
-<meta name="keywords" content="Lua, LuaSocket, MIME, Library, Support"> 
+<meta name="keywords" content="Lua, LuaSocket, MIME, Library, Support">
 <title>LuaSocket: MIME module</title>
 <link rel="stylesheet" href="reference.css" type="text/css">
 </head>
@@ -13,22 +13,22 @@
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,14 +36,14 @@
 
 <!-- mime +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=mime>MIME</h2> 
+<h2 id="mime">MIME</h2>
 
 <p>
 The <tt>mime</tt> namespace offers filters that apply and remove common
 content transfer encodings, such as Base64 and Quoted-Printable.
 It also provides functions to break text into lines and change
 the end-of-line convention.
-MIME is described mainly in 
+MIME is described mainly in
 <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045</a>,
 <a href="http://www.ietf.org/rfc/rfc2046.txt">2046</a>,
 <a href="http://www.ietf.org/rfc/rfc2047.txt">2047</a>,
@@ -52,17 +52,17 @@ MIME is described mainly in
 </p>
 
 <p>
-All functionality provided by the MIME module 
-follows the ideas presented in 
+All functionality provided by the MIME module
+follows the ideas presented in
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">
-LTN012, Filters sources and sinks</a>. 
+LTN012, Filters sources and sinks</a>.
 </p>
 
-<p> 
+<p>
 To obtain the <tt>mime</tt> namespace, run:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- loads the MIME module and everything it requires
 local mime = require("mime")
 </pre>
@@ -70,60 +70,60 @@ local mime = require("mime")
 
 <!-- High-level +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h3 id=high>High-level filters</h3>
+<h3 id="high">High-level filters</h3>
 
 
 <!-- decode +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="decode">
+<p class="name" id="decode">
 mime.<b>decode(</b>"base64"<b>)</b><br>
 mime.<b>decode(</b>"quoted-printable"<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns a filter that decodes data from a given transfer content
 encoding.
 </p>
 
 <!-- encode +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="encode">
+<p class="name" id="encode">
 mime.<b>encode(</b>"base64"<b>)</b><br>
 mime.<b>encode(</b>"quoted-printable" [, mode]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns a filter that encodes data according to a given transfer content
 encoding.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 In the Quoted-Printable case, the user can specify whether the data is
 textual or binary, by passing the <tt>mode</tt> strings "<tt>text</tt>" or
 "<tt>binary</tt>". <tt>Mode</tt> defaults to "<tt>text</tt>".
 </p>
 
-<p class=note>
+<p class="note">
 Although both transfer content encodings specify a limit for the line
 length, the encoding filters do <em>not</em> break text into lines (for
-added flexibility). 
+added flexibility).
 Below is a filter that converts binary data to the Base64 transfer content
 encoding and breaks it into lines of the correct size.
 </p>
 
-<pre class=example>
+<pre class="example">
 base64 = ltn12.filter.chain(
   mime.encode("base64"),
   mime.wrap("base64")
 )
 </pre>
 
-<p class=note>
+<p class="note">
 Note: Text data <em>has</em> to be converted to canonic form
 <em>before</em> being encoded.
 </p>
 
-<pre class=example>
+<pre class="example">
 base64 = ltn12.filter.chain(
   mime.normalize(),
   mime.encode("base64"),
@@ -133,77 +133,77 @@ base64 = ltn12.filter.chain(
 
 <!-- normalize ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="normalize">
+<p class="name" id="normalize">
 mime.<b>normalize(</b>[marker]<b>)</b>
 </p>
 
-<p class=description>
-Converts most common end-of-line markers to a specific given marker. 
+<p class="description">
+Converts most common end-of-line markers to a specific given marker.
 </p>
 
-<p class=parameters>
-<tt>Marker</tt> is the new marker. It defaults to CRLF, the canonic 
+<p class="parameters">
+<tt>Marker</tt> is the new marker. It defaults to CRLF, the canonic
 end-of-line marker defined by the MIME standard.
 </p>
 
-<p class=return>
-The function returns a filter that performs the conversion. 
+<p class="return">
+The function returns a filter that performs the conversion.
 </p>
 
-<p class=note>
+<p class="note">
 Note: There is no perfect solution to this problem. Different end-of-line
-markers are an evil that will probably plague developers forever. 
+markers are an evil that will probably plague developers forever.
 This function, however, will work perfectly for text created with any of
-the most common end-of-line markers, i.e. the Mac OS (CR), the Unix (LF), 
+the most common end-of-line markers, i.e. the Mac OS (CR), the Unix (LF),
 or the DOS (CRLF) conventions. Even if the data has mixed end-of-line
-markers, the function will still work well, although it doesn't 
+markers, the function will still work well, although it doesn't
 guarantee that the number of empty lines will be correct.
 </p>
 
 <!-- stuff +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="stuff">
+<p class="name" id="stuff">
 mime.<b>stuff()</b><br>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns a filter that performs stuffing of SMTP messages.
 </p>
 
-<p class=note>
-Note: The <a href=smtp.html#send><tt>smtp.send</tt></a> function 
+<p class="note">
+Note: The <a href="smtp.html#send"><tt>smtp.send</tt></a> function
 uses this filter automatically. You don't need to chain it with your
-source, or apply it to your message body.  
+source, or apply it to your message body.
 </p>
 
 <!-- wrap +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="wrap">
+<p class="name" id="wrap">
 mime.<b>wrap(</b>"text" [, length]<b>)</b><br>
 mime.<b>wrap(</b>"base64"<b>)</b><br>
 mime.<b>wrap(</b>"quoted-printable"<b>)</b>
 </p>
 
-<p class=description>
-Returns a filter that breaks data into lines. 
+<p class="description">
+Returns a filter that breaks data into lines.
 </p>
 
-<p class=parameters>
-The "<tt>text</tt>" line-wrap filter simply breaks text into lines by 
-inserting CRLF end-of-line markers at appropriate positions. 
-<tt>Length</tt> defaults 76. 
+<p class="parameters">
+The "<tt>text</tt>" line-wrap filter simply breaks text into lines by
+inserting CRLF end-of-line markers at appropriate positions.
+<tt>Length</tt> defaults 76.
 The "<tt>base64</tt>" line-wrap filter works just like the default
-"<tt>text</tt>" line-wrap filter with default length. 
+"<tt>text</tt>" line-wrap filter with default length.
 The function can also wrap "<tt>quoted-printable</tt>" lines, taking care
 not to break lines in the middle of an escaped character. In that case, the
 line length is fixed at 76.
 </p>
 
-<p class=note>
+<p class="note">
 For example, to create an encoding filter for the Quoted-Printable transfer content encoding of text data, do the following:
 </p>
 
-<pre class=example>
+<pre class="example">
 qp = ltn12.filter.chain(
   mime.normalize(),
   mime.encode("quoted-printable"),
@@ -211,155 +211,155 @@ qp = ltn12.filter.chain(
 )
 </pre>
 
-<p class=note>
+<p class="note">
 Note: To break into lines with a different end-of-line convention, apply
-a normalization filter after the line break filter. 
+a normalization filter after the line break filter.
 </p>
 
 <!-- Low-level ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h3 id=low>Low-level filters</h3>
+<h3 id="low">Low-level filters</h3>
 
 <!-- b64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="b64">
+<p class="name" id="b64">
 A, B = mime.<b>b64(</b>C [, D]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to perform Base64 encoding. 
+<p class="description">
+Low-level filter to perform Base64 encoding.
 </p>
 
-<p class=description>
-<tt>A</tt> is the encoded version of the largest prefix of 
-<tt>C..D</tt> 
-that can be encoded unambiguously. <tt>B</tt> has the remaining bytes of 
-<tt>C..D</tt>, <em>before</em> encoding. 
-If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is padded with 
-the encoding of the remaining bytes of <tt>C</tt>. 
+<p class="description">
+<tt>A</tt> is the encoded version of the largest prefix of
+<tt>C..D</tt>
+that can be encoded unambiguously. <tt>B</tt> has the remaining bytes of
+<tt>C..D</tt>, <em>before</em> encoding.
+If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is padded with
+the encoding of the remaining bytes of <tt>C</tt>.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The simplest use of this function is to encode a string into it's
 Base64 transfer content encoding. Notice the extra parenthesis around the
 call to <tt>mime.b64</tt>, to discard the second return value.
 </p>
 
-<pre class=example>
+<pre class="example">
 print((mime.b64("diego:password")))
 --&gt; ZGllZ286cGFzc3dvcmQ=
 </pre>
 
 <!-- dot +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
-<p class=name id="dot">
+<p class="name" id="dot">
 A, n = mime.<b>dot(</b>m [, B]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Low-level filter to perform SMTP stuffing and enable transmission of
-messages containing the sequence "CRLF.CRLF". 
+messages containing the sequence "CRLF.CRLF".
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>A</tt> is the stuffed version of <tt>B</tt>. '<tt>n</tt>' gives the
 number of characters from the sequence CRLF seen in the end of <tt>B</tt>.
 '<tt>m</tt>' should tell the same, but for the previous chunk.
 </p>
 
-<p class=note>Note: The message body is defined to begin with 
+<p class="note">Note: The message body is defined to begin with
 an implicit CRLF. Therefore, to stuff a message correctly, the
-first <tt>m</tt> should have the value 2. 
+first <tt>m</tt> should have the value 2.
 </p>
 
-<pre class=example>
+<pre class="example">
 print((string.gsub(mime.dot(2, ".\r\nStuffing the message.\r\n.\r\n."), "\r\n", "\\n")))
 --&gt; ..\nStuffing the message.\n..\n..
 </pre>
 
-<p class=note>
-Note: The <a href=smtp.html#send><tt>smtp.send</tt></a> function 
-uses this filter automatically. You don't need to 
-apply it again. 
+<p class="note">
+Note: The <a href="smtp.html#send"><tt>smtp.send</tt></a> function
+uses this filter automatically. You don't need to
+apply it again.
 </p>
 
 <!-- eol ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="eol">
+<p class="name" id="eol">
 A, B = mime.<b>eol(</b>C [, D, marker]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to perform end-of-line marker translation. 
+<p class="description">
+Low-level filter to perform end-of-line marker translation.
 For each chunk, the function needs to know if the last character of the
 previous chunk could be part of an end-of-line marker or not. This is the
 context the function receives besides the chunk.  An updated version of
-the context is returned after each new chunk. 
+the context is returned after each new chunk.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>A</tt> is the translated version of <tt>D</tt>. <tt>C</tt> is the
 ASCII value of the last character of the previous chunk, if it was a
-candidate for line break, or 0 otherwise. 
+candidate for line break, or 0 otherwise.
 <tt>B</tt> is the same as <tt>C</tt>, but for the current
 chunk. <tt>Marker</tt> gives the new end-of-line marker and defaults to CRLF.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- translates the end-of-line marker to UNIX
-unix = mime.eol(0, dos, "\n") 
+unix = mime.eol(0, dos, "\n")
 </pre>
 
 <!-- qp ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="qp">
+<p class="name" id="qp">
 A, B = mime.<b>qp(</b>C [, D, marker]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to perform Quoted-Printable encoding. 
+<p class="description">
+Low-level filter to perform Quoted-Printable encoding.
 </p>
 
-<p class=parameters>
-<tt>A</tt> is the encoded version of the largest prefix of 
-<tt>C..D</tt> 
-that can be encoded unambiguously. <tt>B</tt> has the remaining bytes of 
-<tt>C..D</tt>, <em>before</em> encoding. 
-If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is padded with 
-the encoding of the remaining bytes of <tt>C</tt>. 
-Throughout encoding, occurrences of CRLF are replaced by the 
+<p class="parameters">
+<tt>A</tt> is the encoded version of the largest prefix of
+<tt>C..D</tt>
+that can be encoded unambiguously. <tt>B</tt> has the remaining bytes of
+<tt>C..D</tt>, <em>before</em> encoding.
+If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is padded with
+the encoding of the remaining bytes of <tt>C</tt>.
+Throughout encoding, occurrences of CRLF are replaced by the
 <tt>marker</tt>, which itself defaults to CRLF.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The simplest use of this function is to encode a string into it's
-Quoted-Printable transfer content encoding. 
+Quoted-Printable transfer content encoding.
 Notice the extra parenthesis around the call to <tt>mime.qp</tt>, to discard the second return value.
 </p>
 
-<pre class=example>
-print((mime.qp("maçã")))
+<pre class="example">
+print((mime.qp("ma��")))
 --&gt; ma=E7=E3=
 </pre>
 
 <!-- qpwrp ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="qpwrp">
+<p class="name" id="qpwrp">
 A, m = mime.<b>qpwrp(</b>n [, B, length]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to break Quoted-Printable text into lines. 
+<p class="description">
+Low-level filter to break Quoted-Printable text into lines.
 </p>
 
-<p class=parameters>
-<tt>A</tt> is a copy of <tt>B</tt>, broken into lines of at most 
-<tt>length</tt> bytes (defaults to 76). 
-'<tt>n</tt>' should tell how many bytes are left for the first 
-line of <tt>B</tt> and '<tt>m</tt>' returns the number of bytes 
-left in the last line of <tt>A</tt>. 
+<p class="parameters">
+<tt>A</tt> is a copy of <tt>B</tt>, broken into lines of at most
+<tt>length</tt> bytes (defaults to 76).
+'<tt>n</tt>' should tell how many bytes are left for the first
+line of <tt>B</tt> and '<tt>m</tt>' returns the number of bytes
+left in the last line of <tt>A</tt>.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Besides breaking text into lines, this function makes sure the line
 breaks don't fall in the middle of an escaped character combination. Also,
 this function only breaks lines that are bigger than <tt>length</tt> bytes.
@@ -367,86 +367,86 @@ this function only breaks lines that are bigger than <tt>length</tt> bytes.
 
 <!-- unb64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="unb64">
+<p class="name" id="unb64">
 A, B = mime.<b>unb64(</b>C [, D]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to perform Base64 decoding. 
+<p class="description">
+Low-level filter to perform Base64 decoding.
 </p>
 
-<p class=parameters>
-<tt>A</tt> is the decoded version of the largest prefix of 
-<tt>C..D</tt> 
-that can be decoded unambiguously. <tt>B</tt> has the remaining bytes of 
-<tt>C..D</tt>, <em>before</em> decoding. 
+<p class="parameters">
+<tt>A</tt> is the decoded version of the largest prefix of
+<tt>C..D</tt>
+that can be decoded unambiguously. <tt>B</tt> has the remaining bytes of
+<tt>C..D</tt>, <em>before</em> decoding.
 If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is the empty string
-and <tt>B</tt> returns whatever couldn't be decoded. 
+and <tt>B</tt> returns whatever couldn't be decoded.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The simplest use of this function is to decode a string from it's
-Base64 transfer content encoding. 
+Base64 transfer content encoding.
 Notice the extra parenthesis around the call to <tt>mime.unqp</tt>, to discard the second return value.
 </p>
 
-<pre class=example>
+<pre class="example">
 print((mime.unb64("ZGllZ286cGFzc3dvcmQ=")))
 --&gt; diego:password
 </pre>
 
 <!-- unqp +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="unqp">
+<p class="name" id="unqp">
 A, B = mime.<b>unqp(</b>C [, D]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Low-level filter to remove the Quoted-Printable transfer content encoding
-from data. 
+from data.
 </p>
 
-<p class=parameters>
-<tt>A</tt> is the decoded version of the largest prefix of 
-<tt>C..D</tt> 
-that can be decoded unambiguously. <tt>B</tt> has the remaining bytes of 
-<tt>C..D</tt>, <em>before</em> decoding. 
-If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is augmented with 
-the encoding of the remaining bytes of <tt>C</tt>. 
+<p class="parameters">
+<tt>A</tt> is the decoded version of the largest prefix of
+<tt>C..D</tt>
+that can be decoded unambiguously. <tt>B</tt> has the remaining bytes of
+<tt>C..D</tt>, <em>before</em> decoding.
+If <tt>D</tt> is <tt><b>nil</b></tt>, <tt>A</tt> is augmented with
+the encoding of the remaining bytes of <tt>C</tt>.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The simplest use of this function is to decode a string from it's
-Quoted-Printable transfer content encoding. 
+Quoted-Printable transfer content encoding.
 Notice the extra parenthesis around the call to <tt>mime.unqp</tt>, to discard the second return value.
 </p>
 
-<pre class=example>
+<pre class="example">
 print((mime.qp("ma=E7=E3=")))
---&gt; maçã
+--&gt; ma��
 </pre>
 
 <!-- wrp ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="wrp">
+<p class="name" id="wrp">
 A, m = mime.<b>wrp(</b>n [, B, length]<b>)</b>
 </p>
 
-<p class=description>
-Low-level filter to break text into lines with CRLF marker. 
-Text is assumed to be in the <a href=#normalize><tt>normalize</tt></a> form.
+<p class="description">
+Low-level filter to break text into lines with CRLF marker.
+Text is assumed to be in the <a href="#normalize"><tt>normalize</tt></a> form.
 </p>
 
-<p class=parameters>
-<tt>A</tt> is a copy of <tt>B</tt>, broken into lines of at most 
-<tt>length</tt> bytes (defaults to 76). 
-'<tt>n</tt>' should tell how many bytes are left for the first 
-line of <tt>B</tt> and '<tt>m</tt>' returns the number of bytes 
-left in the last line of <tt>A</tt>. 
+<p class="parameters">
+<tt>A</tt> is a copy of <tt>B</tt>, broken into lines of at most
+<tt>length</tt> bytes (defaults to 76).
+'<tt>n</tt>' should tell how many bytes are left for the first
+line of <tt>B</tt> and '<tt>m</tt>' returns the number of bytes
+left in the last line of <tt>A</tt>.
 </p>
 
-<p class=note>
-Note: This function only breaks lines that are bigger than 
+<p class="note">
+Note: This function only breaks lines that are bigger than
 <tt>length</tt> bytes. The resulting line length does not include the CRLF
 marker.
 </p>
@@ -454,10 +454,10 @@ marker.
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/reference.html b/doc/reference.html
index 163a8a2..2bc5f78 100644
--- a/doc/reference.html
+++ b/doc/reference.html
@@ -1,11 +1,11 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
 <meta name="description" content="LuaSocket: Index to reference manual">
 <meta name="keywords" content="Lua, LuaSocket, Index, Manual, Network, Library,
-Support, Manual"> 
+Support, Manual">
 <title>LuaSocket: Index to reference manual</title>
 <link rel="stylesheet" href="reference.css" type="text/css">
 </head>
@@ -14,22 +14,22 @@ Support, Manual">
 
 <!-- header ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -92,7 +92,7 @@ Support, Manual">
 <a href="ltn12.html#sink.table">table</a>.
 </blockquote>
 <blockquote>
-<a href="ltn12.html#source">source</a>: 
+<a href="ltn12.html#source">source</a>:
 <a href="ltn12.html#source.cat">cat</a>,
 <a href="ltn12.html#source.chain">chain</a>,
 <a href="ltn12.html#source.empty">empty</a>,
@@ -238,10 +238,10 @@ Support, Manual">
 
 <!-- footer ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/smtp.html b/doc/smtp.html
index 600ec37..787d0b1 100644
--- a/doc/smtp.html
+++ b/doc/smtp.html
@@ -1,11 +1,11 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
 <meta name="description" content="LuaSocket: SMTP support">
 <meta name="keywords" content="Lua, LuaSocket, SMTP, E-Mail, MIME, Multipart,
-Library, Support"> 
+Library, Support">
 <title>LuaSocket: SMTP support</title>
 <link rel="stylesheet" href="reference.css" type="text/css">
 </head>
@@ -14,22 +14,22 @@ Library, Support">
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -37,14 +37,14 @@ Library, Support">
 
 <!-- smtp +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=smtp>SMTP</h2> 
+<h2 id="smtp">SMTP</h2>
 
 <p> The  <tt>smtp</tt> namespace provides functionality to send e-mail
-messages. The high-level API consists of two functions: one to 
+messages. The high-level API consists of two functions: one to
 define an e-mail message, and another to actually send the message.
 Although almost all users will find that these functions provide more than
 enough functionality, the underlying implementation allows for even more
-control (if you bother to read the code).  
+control (if you bother to read the code).
 </p>
 
 <p>The implementation conforms to the Simple Mail Transfer Protocol,
@@ -54,19 +54,19 @@ href="http://www.ietf.org/rfc/rfc2822.txt">RFC 2822</a>,
 which governs the Internet Message Format.
 Multipart messages (those that contain attachments) are part
 of the MIME standard, but described mainly
-in <a href="http://www.ietf.org/rfc/rfc2046.txt">RFC 2046</a>
+in <a href="http://www.ietf.org/rfc/rfc2046.txt">RFC 2046</a>.</p>
 
 <p> In the description below, good understanding of <a
 href="http://lua-users.org/wiki/FiltersSourcesAndSinks"> LTN012, Filters
-sources and sinks</a> and the  <a href=mime.html>MIME</a> module is
-assumed.  In fact, the SMTP module was the main reason for their 
+sources and sinks</a> and the  <a href="mime.html">MIME</a> module is
+assumed.  In fact, the SMTP module was the main reason for their
 creation. </p>
 
-<p> 
+<p>
 To obtain the <tt>smtp</tt> namespace, run:
 </p>
 
-<pre class=example>
+<pre class="example">
 -- loads the SMTP module and everything it requires
 local smtp = require("socket.smtp")
 </pre>
@@ -92,40 +92,40 @@ headers = {<br>
 <p>
 Field names are case insensitive (as specified by the standard) and all
 functions work with lowercase field names (but see
-<a href=socket.html#headers.canonic><tt>socket.headers.canonic</tt></a>).
+<a href="socket.html#headers.canonic"><tt>socket.headers.canonic</tt></a>).
 Field values are left unmodified.
 </p>
 
-<p class=note>
+<p class="note">
 Note: MIME headers are independent of order. Therefore, there is no problem
-in representing them in a Lua table. 
+in representing them in a Lua table.
 </p>
 
 <p>
 The following constants can be set to control the default behavior of
-the SMTP module: 
+the SMTP module:
 </p>
 
 <ul>
-<li> <tt>DOMAIN</tt>: domain used to greet the server;
-<li> <tt>PORT</tt>: default port used for the connection;
-<li> <tt>SERVER</tt>: default server used for the connection;
-<li> <tt>TIMEOUT</tt>: default timeout for all I/O operations;
-<li> <tt>ZONE</tt>: default time zone.
+<li> <tt>DOMAIN</tt>: domain used to greet the server;</li>
+<li> <tt>PORT</tt>: default port used for the connection;</li>
+<li> <tt>SERVER</tt>: default server used for the connection;</li>
+<li> <tt>TIMEOUT</tt>: default timeout for all I/O operations;</li>
+<li> <tt>ZONE</tt>: default time zone.</li>
 </ul>
 
 <!-- message ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=message> 
+<p class="name" id="message">
 smtp.<b>message(</b>mesgt<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns a <em>simple</em>
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> source that sends an SMTP message body, possibly multipart (arbitrarily deep). 
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> source that sends an SMTP message body, possibly multipart (arbitrarily deep).
 </p>
 
-<p class=parameters>
+<p class="parameters">
 The only parameter of the function is a table describing the message.
 <tt>Mesgt</tt> has the following form (notice the recursive structure):
 </p>
@@ -135,7 +135,7 @@ The only parameter of the function is a table describing the message.
 <tr><td><tt>
 mesgt = {<br>
 &nbsp;&nbsp;headers = <i>header-table</i>,<br>
-&nbsp;&nbsp;body = <i>LTN12 source</i> or <i>string</i> or 
+&nbsp;&nbsp;body = <i>LTN12 source</i> or <i>string</i> or
 <i>multipart-mesgt</i><br>
 }<br>
 &nbsp;<br>
@@ -151,36 +151,36 @@ multipart-mesgt = {<br>
 </table>
 </blockquote>
 
-<p class=parameters>
+<p class="parameters">
 For a simple message, all that is needed is a set of <tt>headers</tt>
 and the <tt>body</tt>. The message <tt>body</tt> can be given as a string
-or as a <em>simple</em> 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+or as a <em>simple</em>
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 source. For multipart messages, the body is a table that
 recursively defines each part as an independent message, plus an optional
 <tt>preamble</tt> and <tt>epilogue</tt>.
 </p>
 
-<p class=return> 
-The function returns a <em>simple</em> 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+<p class="return">
+The function returns a <em>simple</em>
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 source that produces the
-message contents as defined by <tt>mesgt</tt>, chunk by chunk. 
+message contents as defined by <tt>mesgt</tt>, chunk by chunk.
 Hopefully, the following
 example will make things clear. When in doubt, refer to the appropriate RFC
 as listed in the introduction.  </p>
 
-<pre class=example>
+<pre class="example">
 -- load the smtp support and its friends
 local smtp = require("socket.smtp")
 local mime = require("mime")
 local ltn12 = require("ltn12")
 
--- creates a source to send a message with two parts. The first part is 
+-- creates a source to send a message with two parts. The first part is
 -- plain text, the second part is a PNG image, encoded as base64.
 source = smtp.message{
   headers = {
-     -- Remember that headers are *ignored* by smtp.send. 
+     -- Remember that headers are *ignored* by smtp.send.
      from = "Sicrano de Oliveira &lt;sicrano@example.com&gt;",
      to = "Fulano da Silva &lt;fulano@example.com&gt;",
      subject = "Here is a message with attachments"
@@ -191,20 +191,20 @@ source = smtp.message{
                "Preamble will probably appear even in a MIME enabled client.",
     -- first part: no headers means plain text, us-ascii.
     -- The mime.eol low-level filter normalizes end-of-line markers.
-    [1] = { 
+    [1] = {
       body = mime.eol(0, [[
-        Lines in a message body should always end with CRLF. 
-        The smtp module will *NOT* perform translation. However, the 
+        Lines in a message body should always end with CRLF.
+        The smtp module will *NOT* perform translation. However, the
         send function *DOES* perform SMTP stuffing, whereas the message
         function does *NOT*.
       ]])
     },
-    -- second part: headers describe content to be a png image, 
+    -- second part: headers describe content to be a png image,
     -- sent under the base64 transfer content encoding.
-    -- notice that nothing happens until the message is actually sent. 
-    -- small chunks are loaded into memory right before transmission and 
+    -- notice that nothing happens until the message is actually sent.
+    -- small chunks are loaded into memory right before transmission and
     -- translation happens on the fly.
-    [2] = { 
+    [2] = {
       headers = {
         ["content-type"] = 'image/png; name="image.png"',
         ["content-disposition"] = 'attachment; filename="image.png"',
@@ -234,7 +234,7 @@ r, e = smtp.send{
 
 <!-- send +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=send> 
+<p class="name" id="send">
 smtp.<b>send{</b><br>
 &nbsp;&nbsp;from = <i>string</i>,<br>
 &nbsp;&nbsp;rcpt = <i>string</i> or <i>string-table</i>,<br>
@@ -249,53 +249,53 @@ smtp.<b>send{</b><br>
 <b>}</b>
 </p>
 
-<p class=description>
+<p class="description">
 Sends a message to a recipient list. Since sending messages is not as
-simple as downloading an URL from a FTP or HTTP server, this function 
-doesn't have a simple interface. However, see the 
-<a href=#message><tt>message</tt></a> source factory for 
+simple as downloading an URL from a FTP or HTTP server, this function
+doesn't have a simple interface. However, see the
+<a href="#message"><tt>message</tt></a> source factory for
 a very powerful way to define the message contents.
 </p>
 
 
-<p class=parameters>
-The sender is given by the e-mail address in the <tt>from</tt> field. 
+<p class="parameters">
+The sender is given by the e-mail address in the <tt>from</tt> field.
 <tt>Rcpt</tt> is a Lua table with one entry for each recipient e-mail
 address, or a string
-in case there is just one recipient. 
-The contents of the message are given by a <em>simple</em> 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+in case there is just one recipient.
+The contents of the message are given by a <em>simple</em>
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 <tt>source</tt>. Several arguments are optional:
 </p>
 <ul>
 <li> <tt>user</tt>, <tt>password</tt>: User and password for
 authentication. The function will attempt LOGIN and PLAIN authentication
-methods if supported by the server (both are unsafe);
-<li> <tt>server</tt>: Server to connect to. Defaults to "localhost";
-<li> <tt>port</tt>: Port to connect to. Defaults to 25;
+methods if supported by the server (both are unsafe);</li>
+<li> <tt>server</tt>: Server to connect to. Defaults to "localhost";</li>
+<li> <tt>port</tt>: Port to connect to. Defaults to 25;</li>
 <li> <tt>domain</tt>: Domain name used to greet the server; Defaults to the
-local machine host name; 
-<li> <tt>step</tt>: 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+local machine host name;</li>
+<li> <tt>step</tt>:
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 pump step function used to pass data from the
-source to the server. Defaults to the LTN12 <tt>pump.step</tt> function;
+source to the server. Defaults to the LTN12 <tt>pump.step</tt> function;</li>
 <li><tt>create</tt>: An optional function to be used instead of
-<a href=tcp.html#socket.tcp><tt>socket.tcp</tt></a> when the communications socket is created. 
+<a href="tcp.html#socket.tcp"><tt>socket.tcp</tt></a> when the communications socket is created.</li>
 </ul>
 
-<p class=return> 
+<p class="return">
 If  successful, the function returns 1. Otherwise, the function returns
 <b><tt>nil</tt></b> followed by an error message.
 </p>
 
-<p class=note>
+<p class="note">
 Note: SMTP servers can be very picky with the format of e-mail
 addresses. To be safe, use only addresses of the form
 "<tt>&lt;fulano@example.com&gt;</tt>" in the <tt>from</tt> and
 <tt>rcpt</tt> arguments to the <tt>send</tt> function. In headers, e-mail
 addresses can take whatever form you like.  </p>
 
-<p class=note>
+<p class="note">
 Big note: There is a good deal of misconception with the use of the
 destination address field headers, i.e., the '<tt>To</tt>', '<tt>Cc</tt>',
 and, more importantly, the '<tt>Bcc</tt>' headers. Do <em>not</em> add a
@@ -303,68 +303,69 @@ and, more importantly, the '<tt>Bcc</tt>' headers. Do <em>not</em> add a
 exact opposite of what you expect.
 </p>
 
-<p class=note>
+<p class="note">
 Only recipients specified in the <tt>rcpt</tt> list will receive a copy of the
 message.  Each recipient of an SMTP mail message receives a copy of the
 message body along with the headers, and nothing more.  The headers
-<em>are</em> part of the message and should be produced by the 
-<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a> 
+<em>are</em> part of the message and should be produced by the
+<a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
 <tt>source</tt> function. The <tt>rcpt</tt> list is <em>not</em>
 part of the message and will not be sent to anyone.
 </p>
 
-<p class=note>
+<p class="note">
 <a href="http://www.ietf.org/rfc/rfc2822.txt">RFC 2822</a>
 has two <em>important and short</em> sections, "3.6.3. Destination address
 fields" and "5. Security considerations",  explaining the proper
-use of these headers. Here is a summary of what it says: 
+use of these headers. Here is a summary of what it says:
 </p>
 
 <ul>
 <li> <tt>To</tt>: contains the address(es) of the primary recipient(s)
-of the message;
+of the message;</li>
 <li> <tt>Cc</tt>: (where the "Cc" means "Carbon Copy" in the sense of
 making a copy on a typewriter using carbon paper) contains the
 addresses of others who are to receive the message, though the
-content of the message may not be directed at them;
+content of the message may not be directed at them;</li>
 <li> <tt>Bcc</tt>: (where the "Bcc" means "Blind Carbon
-Copy") contains addresses of recipients of the message whose addresses are not to be revealed to other recipients of the message.
-</ul> 
+Copy") contains addresses of recipients of the message whose addresses are not
+to be revealed to other recipients of the message.</li>
+</ul>
 
-<p class=note>
-The LuaSocket <tt>send</tt> function does not care or interpret the 
-headers you send, but it gives you full control over what is sent and 
+<p class="note">
+The LuaSocket <tt>send</tt> function does not care or interpret the
+headers you send, but it gives you full control over what is sent and
 to whom it is sent:
 </p>
 <ul>
 <li> If someone is to receive the message, the e-mail address <em>has</em>
 to be in the recipient list. This is the only parameter that controls who
-gets a copy of the message;
-<li> If there are multiple recipients, none of them will automatically 
+gets a copy of the message;</li>
+<li> If there are multiple recipients, none of them will automatically
 know that someone else got that message. That is, the default behavior is
-similar to the <tt>Bcc</tt> field of popular e-mail clients; 
+similar to the <tt>Bcc</tt> field of popular e-mail clients;</li>
 <li> It is up to you to add the <tt>To</tt> header with the list of primary
-recipients so that other recipients can see it;
-<li> It is also up to you to add the <tt>Cc</tt> header with the 
-list of additional recipients so that everyone else sees it;
-<li> Adding a header <tt>Bcc</tt> is nonsense, unless it is 
+recipients so that other recipients can see it;</li>
+<li> It is also up to you to add the <tt>Cc</tt> header with the
+list of additional recipients so that everyone else sees it;</li>
+<li> Adding a header <tt>Bcc</tt> is nonsense, unless it is
 empty. Otherwise, everyone receiving the message will see it and that is
-exactly what you <em>don't</em> want to happen!
+exactly what you <em>don't</em> want to happen!</li>
 </ul>
 
-<p class=note>
-I hope this clarifies the issue. Otherwise, please refer to 
+<p class="note">
+I hope this clarifies the issue. Otherwise, please refer to
 <a href="http://www.ietf.org/rfc/rfc2821.txt">RFC 2821</a>
 and
 <a href="http://www.ietf.org/rfc/rfc2822.txt">RFC 2822</a>.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- load the smtp support
 local smtp = require("socket.smtp")
 
 -- Connects to server "localhost" and sends a message to users
--- "fulano@example.com",  "beltrano@example.com", 
+-- "fulano@example.com",  "beltrano@example.com",
 -- and "sicrano@example.com".
 -- Note that "fulano" is the primary recipient, "beltrano" receives a
 -- carbon copy and neither of them knows that "sicrano" received a blind
@@ -388,17 +389,17 @@ mesgt = {
 
 r, e = smtp.send{
   from = from,
-  rcpt = rcpt, 
+  rcpt = rcpt,
   source = smtp.message(mesgt)
 }
 </pre>
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/socket.html b/doc/socket.html
index 35f8391..68db7cc 100644
--- a/doc/socket.html
+++ b/doc/socket.html
@@ -1,10 +1,10 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
     "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 
 <head>
 <meta name="description" content="LuaSocket: The core namespace">
-<meta name="keywords" content="Lua, LuaSocket, Socket, Network, Library, Support"> 
+<meta name="keywords" content="Lua, LuaSocket, Socket, Network, Library, Support">
 <title>LuaSocket: The socket namespace</title>
 <link rel="stylesheet" href="reference.css" type="text/css">
 </head>
@@ -13,22 +13,22 @@
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="https://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
 <a href="introduction.html">introduction</a> &middot;
-<a href="reference.html">reference</a> 
+<a href="reference.html">reference</a>
 </p>
 </center>
 <hr>
@@ -36,71 +36,71 @@
 
 <!-- socket +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<h2 id=socket>The socket namespace</h2> 
+<h2 id="socket">The socket namespace</h2>
 
 <p>
-The <tt>socket</tt> namespace contains the core functionality of LuaSocket. 
+The <tt>socket</tt> namespace contains the core functionality of LuaSocket.
 </p>
 
-<p> 
+<p>
 To obtain the <tt>socket</tt> namespace, run:
 </p>
 
-<pre class=example>
--- loads the socket module 
+<pre class="example">
+-- loads the socket module
 local socket = require("socket")
 </pre>
 
 <!-- headers.canonic ++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="headers.canonic">
+<p class="name" id="headers.canonic">
 socket.headers.<b>canonic</b></p>
 
-<p> The <tt>socket.headers.canonic</tt> table 
-is used by the HTTP and SMTP modules to translate from 
-lowercase field names back into their canonic 
+<p> The <tt>socket.headers.canonic</tt> table
+is used by the HTTP and SMTP modules to translate from
+lowercase field names back into their canonic
 capitalization. When a lowercase field name exists as a key
 in this table, the associated value is substituted in
 whenever the field name is sent out.
 </p>
 
-<p> 
+<p>
 You can obtain the <tt>headers</tt> namespace if case run-time
 modifications are required by running:
 </p>
 
-<pre class=example>
--- loads the headers module 
+<pre class="example">
+-- loads the headers module
 local headers = require("headers")
 </pre>
 
 
 <!-- bind ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=bind> 
+<p class="name" id="bind">
 socket.<b>bind(</b>address, port [, backlog]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 This function is a shortcut that creates and returns a TCP server object
-bound to a local <tt>address</tt> and <tt>port</tt>, ready to 
+bound to a local <tt>address</tt> and <tt>port</tt>, ready to
 accept client connections. Optionally,
-user can also specify the <tt>backlog</tt> argument to the 
-<a href=tcp.html#listen><tt>listen</tt></a> method (defaults to 32). 
+user can also specify the <tt>backlog</tt> argument to the
+<a href="tcp.html#listen"><tt>listen</tt></a> method (defaults to 32).
 </p>
 
-<p class=note>
-Note: The server object returned will have the option "<tt>reuseaddr</tt>" 
+<p class="note">
+Note: The server object returned will have the option "<tt>reuseaddr</tt>"
 set to <tt><b>true</b></tt>.
 </p>
 
 <!-- connect ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=connect> 
+<p class="name" id="connect">
 socket.<b>connect[46](</b>address, port [, locaddr] [, locport] [, family]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 This function is a shortcut that creates and returns a TCP client object
 connected to a remote <tt>address</tt> at a given <tt>port</tt>. Optionally,
 the user can also specify the local address and port to bind
@@ -114,40 +114,40 @@ of connect are defined as simple helper functions that restrict the
 
 <!-- debug ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=debug>
+<p class="name" id="debug">
 socket.<b>_DEBUG</b>
 </p>
 
-<p class=description>
+<p class="description">
 This constant is set to <tt><b>true</b></tt> if the library was compiled
 with debug support.
 </p>
 
 <!-- datagramsize +++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=debug>
+<p class="name" id="datagramsize">
 socket.<b>_DATAGRAMSIZE</b>
 </p>
 
-<p class=description>
+<p class="description">
 Default datagram size used by calls to
-<a href="udp.html#receive"<tt>receive</tt></a> and
+<a href="udp.html#receive"><tt>receive</tt></a> and
 <a href="udp.html#receivefrom"><tt>receivefrom</tt></a>.
 (Unless changed in compile time, the value is 8192.)
 </p>
 
 <!-- get time +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=gettime> 
+<p class="name" id="gettime">
 socket.<b>gettime()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns the UNIX time in seconds. You should subtract the values returned by this function
-to get meaningful values. 
+to get meaningful values.
 </p>
 
-<pre class=example>
+<pre class="example">
 t = socket.gettime()
 -- do stuff
 print(socket.gettime() - t .. " seconds elapsed")
@@ -155,38 +155,38 @@ print(socket.gettime() - t .. " seconds elapsed")
 
 <!-- newtry +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=newtry> 
+<p class="name" id="newtry">
 socket.<b>newtry(</b>finalizer<b>)</b>
 </p>
 
-<p class=description>
-Creates and returns a <em>clean</em> 
+<p class="description">
+Creates and returns a <em>clean</em>
 <a href="#try"><tt>try</tt></a>
-function that allows for cleanup before the exception 
-is  raised. 
+function that allows for cleanup before the exception
+is  raised.
 </p>
 
-<p class=parameters> 
+<p class="parameters">
 <tt>Finalizer</tt> is a function that will be called before
 <tt>try</tt> throws the exception.
 </p>
 
-<p class=return> 
-The function returns your customized <tt>try</tt> function. 
+<p class="return">
+The function returns your customized <tt>try</tt> function.
 </p>
 
-<p class=note>
-Note: This idea saved a <em>lot</em> of work with the 
-implementation of protocols in LuaSocket: 
+<p class="note">
+Note: This idea saved a <em>lot</em> of work with the
+implementation of protocols in LuaSocket:
 </p>
 
-<pre class=example>
+<pre class="example">
 foo = socket.protect(function()
     -- connect somewhere
     local c = socket.try(socket.connect("somewhere", 42))
     -- create a try function that closes 'c' on error
     local try = socket.newtry(function() c:close() end)
-    -- do everything reassured c will be closed 
+    -- do everything reassured c will be closed
     try(c:send("hello there?\r\n"))
     local answer = try(c:receive())
     ...
@@ -198,40 +198,40 @@ end)
 
 <!-- protect +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=protect> 
+<p class="name" id="protect">
 socket.<b>protect(</b>func<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Converts a function that throws exceptions into a safe function. This
-function only catches exceptions thrown by the <a href=#try><tt>try</tt></a>
-and <a href=#newtry><tt>newtry</tt></a> functions. It does not catch normal 
+function only catches exceptions thrown by the <a href="#try"><tt>try</tt></a>
+and <a href="#newtry"><tt>newtry</tt></a> functions. It does not catch normal
 Lua errors.
 </p>
 
-<p class=parameters>
-<tt>Func</tt> is a function that calls 
-<a href=#try><tt>try</tt></a> (or <tt>assert</tt>, or <tt>error</tt>) 
-to throw exceptions. 
+<p class="parameters">
+<tt>Func</tt> is a function that calls
+<a href="#try"><tt>try</tt></a> (or <tt>assert</tt>, or <tt>error</tt>)
+to throw exceptions.
 </p>
 
-<p class=return>
+<p class="return">
 Returns an equivalent function that instead of throwing exceptions in case of
-a failed <a href=#try><tt>try</tt></a> call, returns <tt><b>nil</b></tt>
+a failed <a href="#try"><tt>try</tt></a> call, returns <tt><b>nil</b></tt>
 followed by an error message.
 </p>
 
 <!-- select +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=select> 
+<p class="name" id="select">
 socket.<b>select(</b>recvt, sendt [, timeout]<b>)</b>
 </p>
 
-<p class=description>
-Waits for a number of sockets to change status. 
+<p class="description">
+Waits for a number of sockets to change status.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Recvt</tt> is an array with the sockets to test for characters
 available for reading. Sockets in the <tt>sendt</tt> array are watched to
 see if it is OK to immediately write on them.  <tt>Timeout</tt> is the
@@ -242,7 +242,7 @@ be empty tables or <tt><b>nil</b></tt>. Non-socket values (or values with
 non-numeric indices) in the arrays will be silently ignored.
 </p>
 
-<p class=return> The function returns a list with the sockets ready for
+<p class="return"> The function returns a list with the sockets ready for
 reading, a list with the sockets ready for writing and an error message.
 The error message is "<tt>timeout</tt>" if a timeout
 condition was met, "<tt>select failed</tt>" if the call
@@ -250,10 +250,10 @@ to <tt>select</tt> failed, and
 <tt><b>nil</b></tt> otherwise. The returned tables are
 doubly keyed both by integers and also by the sockets
 themselves, to simplify the test if a specific socket has
-changed status. 
+changed status.
 </p>
 
-<p class=note>
+<p class="note">
 <b>Note:</b> <tt>select</tt> can monitor a limited number
 of sockets, as defined by the constant <tt>socket._SETSIZE</tt>. This
 number may be as high as 1024 or as low as 64 by default,
@@ -262,204 +262,204 @@ at compile time. Invoking <tt>select</tt> with a larger
 number of sockets will raise an error.
 </p>
 
-<p class=note>
-<b>Important note</b>: a known bug in WinSock causes <tt>select</tt> to fail 
+<p class="note">
+<b>Important note</b>: a known bug in WinSock causes <tt>select</tt> to fail
 on non-blocking TCP sockets. The function may return a socket as
 writable even though the socket is <em>not</em> ready for sending.
 </p>
 
-<p class=note>
+<p class="note">
 <b>Another important note</b>: calling select with a server socket in the receive parameter before a call to accept does <em>not</em> guarantee
-<a href=tcp.html#accept><tt>accept</tt></a> will return immediately. 
-Use the <a href=tcp.html#settimeout><tt>settimeout</tt></a> 
-method or <tt>accept</tt> might block forever.  
+<a href="tcp.html#accept"><tt>accept</tt></a> will return immediately.
+Use the <a href="tcp.html#settimeout"><tt>settimeout</tt></a>
+method or <tt>accept</tt> might block forever.
 </p>
 
-<p class=note>
+<p class="note">
 <b>Yet another note</b>: If you close a socket and pass
 it to <tt>select</tt>, it will be ignored.
 </p>
 
-<p class=note>
+<p class="note">
 <b>Using select with non-socket objects</b>: Any object that implements <tt>getfd</tt> and <tt>dirty</tt> can be used with <tt>select</tt>, allowing objects from other libraries to be used within a <tt>socket.select</tt> driven loop.
 </p>
 
 <!-- setsize ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=setsize> 
+<p class="name" id="setsize">
 socket.<b>_SETSIZE</b>
 </p>
 
-<p class=description>
+<p class="description">
 The maximum number of sockets that the <a
-href=#select><tt>select</tt></a> function can handle. 
+href="#select"><tt>select</tt></a> function can handle.
 </p>
 
 
 <!-- sink ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=sink> 
+<p class="name" id="sink">
 socket.<b>sink(</b>mode, socket<b>)</b>
 </p>
 
-<p class=description>
-Creates an 
+<p class="description">
+Creates an
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
-sink from a stream socket object. 
+sink from a stream socket object.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Mode</tt> defines the behavior of the sink. The following
 options are available:
 </p>
 <ul>
 <li> <tt>"http-chunked"</tt>: sends data through socket after applying the
-<em>chunked transfer coding</em>, closing the socket when done;
+<em>chunked transfer coding</em>, closing the socket when done;</li>
 <li> <tt>"close-when-done"</tt>: sends all received data through the
-socket, closing the socket when done; 
+socket, closing the socket when done;</li>
 <li> <tt>"keep-open"</tt>: sends all received data through the
-socket, leaving it open when done. 
+socket, leaving it open when done.</li>
 </ul>
 <p>
-<tt>Socket</tt> is the stream socket object used to send the data. 
+<tt>Socket</tt> is the stream socket object used to send the data.
 </p>
 
-<p class=return>
-The function returns a sink with the appropriate behavior. 
+<p class="return">
+The function returns a sink with the appropriate behavior.
 </p>
 
 <!-- skip ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=skip> 
+<p class="name" id="skip">
 socket.<b>skip(</b>d [, ret<sub>1</sub>, ret<sub>2</sub> ...  ret<sub>N</sub>]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Drops a number of arguments and returns the remaining.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>D</tt> is the number of arguments to drop. <tt>Ret<sub>1</sub></tt> to
 <tt>ret<sub>N</sub></tt> are the arguments.
 </p>
 
-<p class=return> 
+<p class="return">
 The function returns <tt>ret<sub>d+1</sub></tt> to <tt>ret<sub>N</sub></tt>.
 </p>
 
-<p class=note>
+<p class="note">
 Note: This function is useful to avoid creation of dummy variables:
 </p>
 
-<pre class=example>
--- get the status code and separator from SMTP server reply 
+<pre class="example">
+-- get the status code and separator from SMTP server reply
 local code, sep = socket.skip(2, string.find(line, "^(%d%d%d)(.?)"))
 </pre>
 
 <!-- sleep ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=sleep> 
+<p class="name" id="sleep">
 socket.<b>sleep(</b>time<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Freezes the program execution during a given amount of time.
 </p>
 
-<p class=parameters> 
+<p class="parameters">
 <tt>Time</tt> is the number of seconds to sleep for. If
 <tt>time</tt> is negative, the function returns immediately.
 </p>
 
 <!-- source +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=source> 
+<p class="name" id="source">
 socket.<b>source(</b>mode, socket [, length]<b>)</b>
 </p>
 
-<p class=description>
-Creates an 
+<p class="description">
+Creates an
 <a href="http://lua-users.org/wiki/FiltersSourcesAndSinks">LTN12</a>
-source from a stream socket object. 
+source from a stream socket object.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Mode</tt> defines the behavior of the source. The following
 options are available:
 </p>
 <ul>
 <li> <tt>"http-chunked"</tt>: receives data from socket and removes the
-<em>chunked transfer coding</em> before returning the data;
+<em>chunked transfer coding</em> before returning the data;</li>
 <li> <tt>"by-length"</tt>: receives a fixed number of bytes from the
-socket. This mode requires the extra argument <tt>length</tt>; 
+socket. This mode requires the extra argument <tt>length</tt>;</li>
 <li> <tt>"until-closed"</tt>: receives data from a socket until the other
-side closes the connection. 
+side closes the connection.</li>
 </ul>
 <p>
-<tt>Socket</tt> is the stream socket object used to receive the data. 
+<tt>Socket</tt> is the stream socket object used to receive the data.
 </p>
 
-<p class=return>
-The function returns a source with the appropriate behavior. 
+<p class="return">
+The function returns a source with the appropriate behavior.
 </p>
 
 <!-- socketinvalid ++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=socketinvalid>
+<p class="name" id="socketinvalid">
 socket.<b>_SOCKETINVALID</b>
 </p>
 
-<p class=description>
+<p class="description">
 The OS value for an invalid socket.
 </p>
 
 <!-- try ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=try> 
+<p class="name" id="try">
 socket.<b>try(</b>ret<sub>1</sub> [, ret<sub>2</sub> ... ret<sub>N</sub>]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Throws an exception in case <tt>ret<sub>1</sub></tt> is falsy, using
-<tt>ret<sub>2</sub></tt> as the error message. The exception is supposed to be caught 
-by a <a href=#protect><tt>protect</tt></a>ed function only.
+<tt>ret<sub>2</sub></tt> as the error message. The exception is supposed to be caught
+by a <a href="#protect"><tt>protect</tt></a>ed function only.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Ret<sub>1</sub></tt> to <tt>ret<sub>N</sub></tt> can be arbitrary
-arguments, but are usually the return values of a function call 
-nested with <tt>try</tt>. 
+arguments, but are usually the return values of a function call
+nested with <tt>try</tt>.
 </p>
 
-<p class=return> 
+<p class="return">
 The function returns <tt>ret</tt><sub>1</sub> to <tt>ret</tt><sub>N</sub> if
 <tt>ret</tt><sub>1</sub> is not <tt><b>nil</b></tt> or <tt><b>false</b></tt>.
 Otherwise, it calls <tt>error</tt> passing <tt>ret</tt><sub>2</sub> wrapped
-in a table with metatable used by <a href=#protect><tt>protect</tt></a> to
+in a table with metatable used by <a href="#protect"><tt>protect</tt></a> to
 distinguish exceptions from runtime errors.
 </p>
 
-<pre class=example>
+<pre class="example">
 -- connects or throws an exception with the appropriate error message
 c = socket.try(socket.connect("localhost", 80))
 </pre>
 
 <!-- version ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id=version> 
+<p class="name" id="version">
 socket.<b>_VERSION</b>
 </p>
 
-<p class=description>
-This constant has a string describing the current LuaSocket version. 
+<p class="description">
+This constant has a string describing the current LuaSocket version.
 </p>
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/tcp.html b/doc/tcp.html
index 6050a5f..2d6e327 100644
--- a/doc/tcp.html
+++ b/doc/tcp.html
@@ -13,17 +13,17 @@
 
 <!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
@@ -40,42 +40,43 @@
 
 <!-- accept +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="accept">
+<p class="name" id="accept">
 server:<b>accept()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Waits  for  a  remote connection on the server
 object and returns a client object representing that connection.
 </p>
 
-<p class=return>
+<p class="return">
 If a connection is successfully initiated, a client object is returned.
 If a  timeout condition  is  met,  the method  returns <b><tt>nil</tt></b>
 followed by the error string '<tt>timeout</tt>'. Other errors are
 reported by <b><tt>nil</tt></b> followed by a message describing the error.
 </p>
 
-<p class=note>
-Note: calling <a href=socket.html#select><tt>socket.select</tt></a>
+<p class="note">
+Note: calling <a href="socket.html#select"><tt>socket.select</tt></a>
 with   a  server   object   in
 the <tt>recvt</tt>  parameter  before  a   call  to  <tt>accept</tt> does
 <em>not</em> guarantee  <tt>accept</tt> will  return immediately.  Use the <a
-href=#settimeout><tt>settimeout</tt></a> method or <tt>accept</tt>
+href="#settimeout"><tt>settimeout</tt></a> method or <tt>accept</tt>
 might block until <em>another</em> client shows up.
 </p>
 
 <!-- bind +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="bind">
+<p class="name" id="bind">
 master:<b>bind(</b>address, port<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Binds a master object to <tt>address</tt> and <tt>port</tt> on the
 local host.
+</p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Address</tt> can be an IP address or a host name.
 <tt>Port</tt> must be an integer number in the range [0..64K).
 If <tt>address</tt>
@@ -86,25 +87,25 @@ If <tt>port</tt> is 0, the system automatically
 chooses an ephemeral port.
 </p>
 
-<p class=return>
+<p class="return">
 In case of  success, the  method returns  1. In case of error, the
 method returns <b><tt>nil</tt></b> followed by an error message.
 </p>
 
-<p class=note>
-Note: The function <a href=socket.html#bind><tt>socket.bind</tt></a>
+<p class="note">
+Note: The function <a href="socket.html#bind"><tt>socket.bind</tt></a>
 is available and is a shortcut for the creation of server sockets.
 </p>
 
 <!-- close ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="close">
+<p class="name" id="close">
 master:<b>close()</b><br>
 client:<b>close()</b><br>
 server:<b>close()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Closes  a TCP object. The internal socket used by the object is closed
 and the local  address   to  which the object was
 bound is made  available to other  applications. No further  operations
@@ -112,7 +113,7 @@ bound is made  available to other  applications. No further  operations
 a closed socket.
 </p>
 
-<p class=note>
+<p class="note">
 Note:  It is  important to  close all  used  sockets once  they are  not
 needed,  since, in  many systems,  each socket  uses a  file descriptor,
 which are limited system resources. Garbage-collected objects are
@@ -121,53 +122,53 @@ automatically closed before destruction, though.
 
 <!-- connect ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="connect">
+<p class="name" id="connect">
 master:<b>connect(</b>address, port<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Attempts to connect a master object to a remote host, transforming it into a
 client object.
 Client objects support methods
-<a href=#send><tt>send</tt></a>,
-<a href=#receive><tt>receive</tt></a>,
-<a href=#getsockname><tt>getsockname</tt></a>,
-<a href=#getpeername><tt>getpeername</tt></a>,
-<a href=#settimeout><tt>settimeout</tt></a>,
-and <a href=#close><tt>close</tt></a>.
+<a href="#send"><tt>send</tt></a>,
+<a href="#receive"><tt>receive</tt></a>,
+<a href="#getsockname"><tt>getsockname</tt></a>,
+<a href="#getpeername"><tt>getpeername</tt></a>,
+<a href="#settimeout"><tt>settimeout</tt></a>,
+and <a href="#close"><tt>close</tt></a>.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Address</tt> can be an IP address or a host name.
 <tt>Port</tt> must be an integer number in the range [1..64K).
 </p>
 
-<p class=return>
+<p class="return">
 In case of error, the method returns <b><tt>nil</tt></b> followed by a string
 describing the error. In case of success, the method returns 1.
 </p>
 
-<p class=note>
-Note: The function <a href=socket.html#connect><tt>socket.connect</tt></a>
+<p class="note">
+Note: The function <a href="socket.html#connect"><tt>socket.connect</tt></a>
 is available and is a shortcut for the creation of client sockets.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Starting with LuaSocket 2.0,
-the <a href=#settimeout><tt>settimeout</tt></a>
+the <a href="#settimeout"><tt>settimeout</tt></a>
 method affects the behavior of <tt>connect</tt>, causing it to return
 with an error in case of a timeout. If that happens, you can still call <a
-href=socket.html#select><tt>socket.select</tt></a> with the socket in the
+href="socket.html#select"><tt>socket.select</tt></a> with the socket in the
 <tt>sendt</tt> table. The socket will be writable when the connection is
 established.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Starting with LuaSocket 3.0, the host name resolution
 depends on whether the socket was created by
-<a href=#socket.tcp><tt>socket.tcp</tt></a>,
-<a href=#socket.tcp4><tt>socket.tcp4</tt></a> or
-<a href=#socket.tcp6><tt>socket.tcp6</tt></a>. Addresses from
+<a href="#socket.tcp"><tt>socket.tcp</tt></a>,
+<a href="#socket.tcp4"><tt>socket.tcp4</tt></a> or
+<a href="#socket.tcp6"><tt>socket.tcp6</tt></a>. Addresses from
 the appropriate family (or both) are tried in the order
 returned by the resolver until the
 first success or until the last failure. If the timeout was
@@ -176,42 +177,42 @@ set to zero, only the first address is tried.
 
 <!-- dirty +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="dirty">
+<p class="name" id="dirty">
 master:<b>dirty()</b><br>
 client:<b>dirty()</b><br>
 server:<b>dirty()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Check the read buffer status.
 </p>
 
-<p class=return>
+<p class="return">
 Returns <tt>true</tt> if there is any data in the read buffer, <tt>false</tt> otherwise.
 </p>
 
-<p class=note>
+<p class="note">
 Note: <b>This is an internal method, use at your own risk.</b>
 </p>
 
 
 <!-- getfd +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="getfd">
+<p class="name" id="getfd">
 master:<b>getfd()</b><br>
 client:<b>getfd()</b><br>
 server:<b>getfd()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns the underling socket descriptor or handle associated to the object.
 </p>
 
-<p class=return>
+<p class="return">
 The descriptor or handle. In case the object has been closed, the return will be -1.
 </p>
 
-<p class=note>
+<p class="note">
 Note: <b>This is an internal method. Unlikely to be
 portable. Use at your own risk. </b>
 </p>
@@ -219,28 +220,27 @@ portable. Use at your own risk. </b>
 
 <!-- getoption ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="getoption">
-client:<b>getoption(</b>option)</b><br>
-server:<b>getoption(</b>option)</b>
+<p class="name" id="getoption">
+client:<b>getoption(option)</b><br>
+server:<b>getoption(option)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Gets options for the TCP object.
-See <a href=#setoption><tt>setoption</tt></a> for description of the
+See <a href="#setoption"><tt>setoption</tt></a> for description of the
 option names and values.
 </p>
 
-<p class=parameters>
-<tt>Option</tt> is a string with the option name.
+<p class="parameters">
+<tt>Option</tt> is a string with the option name.</p>
 <ul>
-
-<li> '<tt>keepalive</tt>'
-<li> '<tt>linger</tt>'
-<li> '<tt>reuseaddr</tt>'
-<li> '<tt>tcp-nodelay</tt>'
+<li> '<tt>keepalive</tt>'</li>
+<li> '<tt>linger</tt>'</li>
+<li> '<tt>reuseaddr</tt>'</li>
+<li> '<tt>tcp-nodelay</tt>'</li>
 </ul>
 
-<p class=return>
+<p class="return">
 The method returns the option <tt>value</tt> in case of success, or
 <b><tt>nil</tt></b> followed by an error message otherwise.
 </p>
@@ -248,38 +248,38 @@ The method returns the option <tt>value</tt> in case of success, or
 
 <!-- getpeername ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="getpeername">
+<p class="name" id="getpeername">
 client:<b>getpeername()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns information about the remote side of a connected client object.
 </p>
 
-<p class=return>
+<p class="return">
 Returns a string with the IP address of the peer, the
 port number that peer is using for the connection,
 and a string with the family ("<tt>inet</tt>" or "<tt>inet6</tt>").
 In case of error, the method returns <b><tt>nil</tt></b>.
 </p>
 
-<p class=note>
+<p class="note">
 Note: It makes no sense to call this method on server objects.
 </p>
 
 <!-- getsockname ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="getsockname">
+<p class="name" id="getsockname">
 master:<b>getsockname()</b><br>
 client:<b>getsockname()</b><br>
 server:<b>getsockname()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns the local address information associated to the object.
 </p>
 
-<p class=return>
+<p class="return">
 The method returns a string with local IP address, a number with
 the local port,
 and a string with the family ("<tt>inet</tt>" or "<tt>inet6</tt>").
@@ -288,31 +288,31 @@ In case of error, the method returns <b><tt>nil</tt></b>.
 
 <!-- getstats +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="getstats">
+<p class="name" id="getstats">
 master:<b>getstats()</b><br>
 client:<b>getstats()</b><br>
 server:<b>getstats()</b><br>
 </p>
 
-<p class=description>
+<p class="description">
 Returns accounting information on the socket, useful for throttling
 of bandwidth.
 </p>
 
-<p class=return>
+<p class="return">
 The method returns the number of bytes received, the number of bytes sent,
 and the age of the socket object in seconds.
 </p>
 
 <!-- gettimeout +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="gettimeout">
+<p class="name" id="gettimeout">
 master:<b>gettimeout()</b><br>
 client:<b>gettimeout()</b><br>
 server:<b>gettimeout()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns the current block timeout followed by the curent
 total timeout.
 </p>
@@ -320,65 +320,65 @@ total timeout.
 
 <!-- listen ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="listen">
+<p class="name" id="listen">
 master:<b>listen(</b>backlog<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Specifies the socket is willing to receive connections, transforming the
 object into a server object.  Server objects support the
-<a href=#accept><tt>accept</tt></a>,
-<a href=#getsockname><tt>getsockname</tt></a>,
-<a href=#setoption><tt>setoption</tt></a>,
-<a href=#settimeout><tt>settimeout</tt></a>,
-and <a href=#close><tt>close</tt></a> methods.
+<a href="#accept"><tt>accept</tt></a>,
+<a href="#getsockname"><tt>getsockname</tt></a>,
+<a href="#setoption"><tt>setoption</tt></a>,
+<a href="#settimeout"><tt>settimeout</tt></a>,
+and <a href="#close"><tt>close</tt></a> methods.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 The parameter <tt>backlog</tt> specifies the  number  of  client
 connections that can
 be queued waiting for service. If the queue is full and another  client
 attempts connection,  the connection is  refused.
 </p>
 
-<p class=return>
+<p class="return">
 In case of  success, the  method returns  1. In case of error, the
 method returns <b><tt>nil</tt></b> followed by an error message.
 </p>
 
 <!-- receive ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="receive">
+<p class="name" id="receive">
 client:<b>receive(</b>[pattern [, prefix]]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Reads data from a client object, according to the specified <em>read
 pattern</em>.  Patterns follow the Lua file I/O format, and the difference in performance between all patterns is negligible.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Pattern</tt> can be any of the following:
 </p>
 
 <ul>
 <li> '<tt>*a</tt>':  reads from  the  socket  until the  connection  is
-closed. No end-of-line translation is performed;
+closed. No end-of-line translation is performed;</li>
 <li> '<tt>*l</tt>':  reads a line of  text from the socket.  The line is
 terminated by a  LF character (ASCII&nbsp;10), optionally  preceded by a
 CR character (ASCII&nbsp;13). The CR and LF characters are not included in
 the returned line. In fact, <em>all</em> CR characters are
-ignored by the pattern. This is the default pattern;
+ignored by the pattern. This is the default pattern;</li>
 <li> <tt>number</tt>:  causes the  method to read  a specified <tt>number</tt>
-of bytes from the socket.
+of bytes from the socket.</li>
 </ul>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Prefix</tt> is an optional string to be concatenated to the beginning
 of any received data before return.
 </p>
 
-<p class=return>
+<p class="return">
 If successful, the method returns the received pattern. In case of error,
 the method returns <tt><b>nil</b></tt> followed by an error
 message, followed by a (possibly empty) string containing
@@ -388,7 +388,7 @@ closed  before  the transmission  was completed  or  the string
 '<tt>timeout</tt>' in  case there was a timeout during  the operation.
 </p>
 
-<p class=note>
+<p class="note">
 <b>Important note</b>: This function was changed <em>severely</em>. It used
 to support multiple patterns (but I have never seen this feature used) and
 now it doesn't anymore.  Partial results used to be returned in the same
@@ -399,22 +399,22 @@ too.
 
 <!-- send +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="send">
+<p class="name" id="send">
 client:<b>send(</b>data [, i [, j]]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Sends <tt>data</tt> through client object.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Data</tt> is the string to be sent. The optional arguments
 <tt>i</tt> and <tt>j</tt> work exactly like the standard
 <tt>string.sub</tt> Lua function to allow the selection of a
 substring to be sent.
 </p>
 
-<p class=return>
+<p class="return">
 If successful, the method returns the index of the last byte
 within <tt>[i, j]</tt> that has been sent.  Notice that, if
 <tt>i</tt> is 1 or absent, this is effectively the total
@@ -428,7 +428,7 @@ was  completed or the string  '<tt>timeout</tt>'  in  case
 there was  a  timeout  during  the operation.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Output is <em>not</em> buffered. For small strings,
 it is always better to concatenate them in Lua
 (with the '<tt>..</tt>' operator) and send the result in one call
@@ -437,27 +437,27 @@ instead of calling the method several times.
 
 <!-- setoption ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="setoption">
+<p class="name" id="setoption">
 client:<b>setoption(</b>option [, value]<b>)</b><br>
 server:<b>setoption(</b>option [, value]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Sets options for the TCP object. Options are only needed by low-level or
 time-critical applications. You should only modify an option if you
 are sure you need it.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Option</tt> is a string with the option name, and <tt>value</tt>
-depends on the option being set:
+depends on the option being set:</p>
 
 <ul>
 
 <li> '<tt>keepalive</tt>':  Setting this option to <tt>true</tt> enables
 the periodic transmission of messages on a connected socket. Should the
 connected party fail to respond to these messages, the connection is
-considered broken and processes using the socket are notified;
+considered broken and processes using the socket are notified;</li>
 
 <li> '<tt>linger</tt>': Controls the action taken when unsent data are
 queued on a socket and a close is performed.  The value is a table with a
@@ -468,79 +468,79 @@ it is able to transmit the data or until '<tt>timeout</tt>' has passed. If
 '<tt>on</tt>' is <tt>false</tt> and a close is issued, the system will
 process the close in a manner that allows the process to continue as
 quickly as possible. I do not advise you to set this to anything other than
-zero;
+zero;</li>
 
 <li> '<tt>reuseaddr</tt>': Setting this option indicates that the rules
 used in validating addresses supplied in a call to
-<a href=#bind><tt>bind</tt></a> should allow reuse of local addresses;
+<a href="#bind"><tt>bind</tt></a> should allow reuse of local addresses;</li>
 
 <li> '<tt>tcp-nodelay</tt>': Setting this option to <tt>true</tt>
-disables the Nagle's algorithm for the connection;
+disables the Nagle's algorithm for the connection;</li>
 
-<li> '<tt>tcp-keepidle</tt>': value in seconds for <tt>TCP_KEEPIDLE</tt> Linux only!!
+<li> '<tt>tcp-keepidle</tt>': value in seconds for <tt>TCP_KEEPIDLE</tt> Linux only!!</li>
 
-<li> '<tt>tcp-keepcnt</tt>': value for <tt>TCP_KEEPCNT</tt> Linux only!!
+<li> '<tt>tcp-keepcnt</tt>': value for <tt>TCP_KEEPCNT</tt> Linux only!!</li>
 
-<li> '<tt>tcp-keepintvl</tt>': value for <tt>TCP_KEEPINTVL</tt> Linux only!!
+<li> '<tt>tcp-keepintvl</tt>': value for <tt>TCP_KEEPINTVL</tt> Linux only!!</li>
 
 <li> '<tt>ipv6-v6only</tt>':
 Setting this option to <tt>true</tt> restricts an <tt>inet6</tt> socket to
-sending and receiving only IPv6 packets.
+sending and receiving only IPv6 packets.</li>
 </ul>
 
-<p class=return>
+<p class="return">
 The method returns 1 in case of success, or <b><tt>nil</tt></b>
 followed by an error message otherwise.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The descriptions above come from the man pages.
 </p>
 
 <!-- setstats +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="setstats">
+<p class="name" id="setstats">
 master:<b>setstats(</b>received, sent, age<b>)</b><br>
 client:<b>setstats(</b>received, sent, age<b>)</b><br>
 server:<b>setstats(</b>received, sent, age<b>)</b><br>
 </p>
 
-<p class=description>
+<p class="description">
 Resets accounting information on the socket, useful for throttling
 of bandwidth.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 <tt>Received</tt> is a number with the new number of bytes received.
 <tt>Sent</tt> is a number with the new number of bytes sent.
 <tt>Age</tt> is the new age in seconds.
 </p>
 
-<p class=return>
+<p class="return">
 The method returns 1 in case of success and <tt><b>nil</b></tt> otherwise.
 </p>
 
 <!-- settimeout +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="settimeout">
+<p class="name" id="settimeout">
 master:<b>settimeout(</b>value [, mode]<b>)</b><br>
 client:<b>settimeout(</b>value [, mode]<b>)</b><br>
 server:<b>settimeout(</b>value [, mode]<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Changes the timeout  values for the object. By default,
 all I/O  operations are  blocking. That  is, any  call to  the methods
-<a href=#send><tt>send</tt></a>,
-<a href=#receive><tt>receive</tt></a>, and
-<a href=#accept><tt>accept</tt></a>
+<a href="#send"><tt>send</tt></a>,
+<a href="#receive"><tt>receive</tt></a>, and
+<a href="#accept"><tt>accept</tt></a>
 will  block indefinitely,  until the operation completes.  The
 <tt>settimeout</tt>  method defines a  limit on the  amount  of   time  the
 I/O methods can  block. When a timeout is set and the specified amount of
 time has elapsed, the affected methods give up and fail with an error code.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 The amount of time to wait is specified  as  the
 <tt>value</tt> parameter, in seconds. There  are two timeout  modes and
 both can be used together for fine tuning:
@@ -557,12 +557,12 @@ the amount of  time LuaSocket can block a Lua  script before returning from
 a call.</li>
 </ul>
 
-<p class=parameters>
+<p class="parameters">
 The  <b><tt>nil</tt></b>  timeout  <tt>value</tt> allows  operations  to  block
 indefinitely. Negative timeout values have the same effect.
 </p>
 
-<p class=note>
+<p class="note">
 Note: although  timeout values  have millisecond  precision in LuaSocket,
 large  blocks can cause I/O functions not to  respect timeout values due
 to the time the library takes to  transfer blocks to and from the  OS
@@ -571,7 +571,7 @@ and perform automatic name resolution might be blocked by the resolver for
 longer than the specified timeout value.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The old <tt>timeout</tt> method is deprecated. The name has been
 changed for sake of uniformity, since all other method names already
 contained verbs making their imperative nature obvious.
@@ -579,123 +579,124 @@ contained verbs making their imperative nature obvious.
 
 <!-- shutdown +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="shutdown">
+<p class="name" id="shutdown">
 client:<b>shutdown(</b>mode<b>)</b><br>
 </p>
 
-<p class=description>
+<p class="description">
 Shuts down part of a full-duplex connection.
 </p>
 
-<p class=parameters>
+<p class="parameters">
 Mode tells which way of the connection should be shut down and can
 take the value:
 <ul>
 <li>"<tt>both</tt>": disallow further sends and receives on the object.
-This is the default mode;
-<li>"<tt>send</tt>": disallow further sends on the object;
-<li>"<tt>receive</tt>": disallow further receives on the object.
+This is the default mode;</li>
+<li>"<tt>send</tt>": disallow further sends on the object;</li>
+<li>"<tt>receive</tt>": disallow further receives on the object.</li>
 </ul>
+</p>
 
-<p class=return>
+<p class="return">
 This function returns 1.
 </p>
 
 <!-- setfd +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="setfd">
+<p class="name" id="setfd">
 master:<b>setfd(</b>fd<b>)</b><br>
 client:<b>setfd(</b>fd<b>)</b><br>
 server:<b>setfd(</b>fd<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Sets the underling socket descriptor or handle associated to the object. The current one is simply replaced, not closed, and no other change to the object state is made.
 </p>
 
-<p class=return>
+<p class="return">
 No return value.
 </p>
 
-<p class=note>
+<p class="note">
 Note: <b>This is an internal method. Unlikely to be
 portable. Use at your own risk. </b>
 </p>
 
 <!-- socket.tcp +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="socket.tcp">
+<p class="name" id="socket.tcp">
 socket.<b>tcp()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns an TCP master object. A master object can
 be transformed into a server object with the method
-<a href=#listen><tt>listen</tt></a> (after a call to <a
-href=#bind><tt>bind</tt></a>) or into a client object with
-the method <a href=#connect><tt>connect</tt></a>. The only other
+<a href="#listen"><tt>listen</tt></a> (after a call to <a
+href="#bind"><tt>bind</tt></a>) or into a client object with
+the method <a href="#connect"><tt>connect</tt></a>. The only other
 method supported by a master object is the
-<a href=#close><tt>close</tt></a> method.</p>
+<a href="#close"><tt>close</tt></a> method.</p>
 
-<p class=return>
+<p class="return">
 In case of success, a new master object is returned. In case of error,
 <b><tt>nil</tt></b> is returned, followed by an error message.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The choice between IPv4 and IPv6 happens during a call to
-<a href=#bind><tt>bind</tt></a> or <a
-href=#bind><tt>connect</tt></a>, depending on the address
+<a href="#bind"><tt>bind</tt></a> or <a
+href="#bind"><tt>connect</tt></a>, depending on the address
 family obtained from the resolver.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Before the choice between IPv4 and IPv6 happens,
 the internal socket object is invalid and therefore <a
-href=#setoption><tt>setoption</tt></a> will fail.
+href="#setoption"><tt>setoption</tt></a> will fail.
 </p>
 
 <!-- socket.tcp +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="socket.tcp4">
+<p class="name" id="socket.tcp4">
 socket.<b>tcp4()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns an IPv4 TCP master object. A master object can
 be transformed into a server object with the method
-<a href=#listen><tt>listen</tt></a> (after a call to <a
-href=#bind><tt>bind</tt></a>) or into a client object with
-the method <a href=#connect><tt>connect</tt></a>. The only other
+<a href="#listen"><tt>listen</tt></a> (after a call to <a
+href="#bind"><tt>bind</tt></a>) or into a client object with
+the method <a href="#connect"><tt>connect</tt></a>. The only other
 method supported by a master object is the
-<a href=#close><tt>close</tt></a> method.</p>
+<a href="#close"><tt>close</tt></a> method.</p>
 
-<p class=return>
+<p class="return">
 In case of success, a new master object is returned. In case of error,
 <b><tt>nil</tt></b> is returned, followed by an error message.
 </p>
 
 <!-- socket.tcp6 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="socket.tcp6">
+<p class="name" id="socket.tcp6">
 socket.<b>tcp6()</b>
 </p>
 
-<p class=description>
+<p class="description">
 Creates and returns an IPv6 TCP master object. A master object can
 be transformed into a server object with the method
-<a href=#listen><tt>listen</tt></a> (after a call to <a
-href=#bind><tt>bind</tt></a>) or into a client object with
-the method <a href=#connect><tt>connect</tt></a>. The only other
+<a href="#listen"><tt>listen</tt></a> (after a call to <a
+href="#bind"><tt>bind</tt></a>) or into a client object with
+the method <a href="#connect"><tt>connect</tt></a>. The only other
 method supported by a master object is the
-<a href=#close><tt>close</tt></a> method.</p>
+<a href="#close"><tt>close</tt></a> method.</p>
 
-<p class=return>
+<p class="return">
 In case of success, a new master object is returned. In case of error,
 <b><tt>nil</tt></b> is returned, followed by an error message.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The TCP object returned will have the option
 "<tt>ipv6-v6only</tt>" set to <tt><b>true</b></tt>.
 </p>
@@ -704,10 +705,10 @@ Note: The TCP object returned will have the option
 
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#down">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
diff --git a/doc/udp.html b/doc/udp.html
index 4618aad..db711cb 100644
--- a/doc/udp.html
+++ b/doc/udp.html
@@ -13,17 +13,17 @@
 
 <!-- header ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=header>
+<div class="header">
 <hr>
 <center>
 <table summary="LuaSocket logo">
-<tr><td align=center><a href="http://www.lua.org">
-<img width=128 height=128 border=0 alt="LuaSocket" src="luasocket.png">
+<tr><td align="center"><a href="http://www.lua.org">
+<img width="128" height="128" border="0" alt="LuaSocket" src="luasocket.png">
 </a></td></tr>
-<tr><td align=center valign=top>Network support for the Lua language
+<tr><td align="center" valign="top">Network support for the Lua language
 </td></tr>
 </table>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;
@@ -71,26 +71,26 @@ unconnected:<b>getoption()</b>
 
 <p class="description">
 Gets an option value from the UDP object.
-See <a href=#setoption><tt>setoption</tt></a> for
+See <a href="#setoption"><tt>setoption</tt></a> for
 description of the option names and values.
 </p>
 
 <p class="parameters"><tt>Option</tt> is a string with the option name.
 <ul>
-<li> '<tt>dontroute</tt>'
-<li> '<tt>broadcast</tt>'
-<li> '<tt>reuseaddr</tt>'
-<li> '<tt>reuseport</tt>'
-<li> '<tt>ip-multicast-loop</tt>'
-<li> '<tt>ipv6-v6only</tt>'
-<li> '<tt>ip-multicast-if</tt>'
-<li> '<tt>ip-multicast-ttl</tt>'
-<li> '<tt>ip-add-membership</tt>'
-<li> '<tt>ip-drop-membership</tt>'
+<li> '<tt>dontroute</tt>'</li>
+<li> '<tt>broadcast</tt>'</li>
+<li> '<tt>reuseaddr</tt>'</li>
+<li> '<tt>reuseport</tt>'</li>
+<li> '<tt>ip-multicast-loop</tt>'</li>
+<li> '<tt>ipv6-v6only</tt>'</li>
+<li> '<tt>ip-multicast-if</tt>'</li>
+<li> '<tt>ip-multicast-ttl</tt>'</li>
+<li> '<tt>ip-add-membership</tt>'</li>
+<li> '<tt>ip-drop-membership</tt>'</li>
 </ul>
 </p>
 
-<p class=return>
+<p class="return">
 The method returns the option <tt>value</tt> in case of
 success, or
 <b><tt>nil</tt></b> followed by an error message otherwise.
@@ -108,7 +108,7 @@ associated with a connected UDP object.
 </p>
 
 
-<p class=return>
+<p class="return">
 Returns a string with the IP address of the peer, the
 port number that peer is using for the connection,
 and a string with the family ("<tt>inet</tt>" or "<tt>inet6</tt>").
@@ -131,7 +131,7 @@ Returns the local address information associated to the object.
 </p>
 
 
-<p class=return>
+<p class="return">
 The method returns a string with local IP address, a number with
 the local port,
 and a string with the family ("<tt>inet</tt>" or "<tt>inet6</tt>").
@@ -148,12 +148,12 @@ wild-card address).
 
 <!-- gettimeout +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class=name id="gettimeout">
+<p class="name" id="gettimeout">
 connected:<b>settimeout(</b>value<b>)</b><br>
 unconnected:<b>settimeout(</b>value<b>)</b>
 </p>
 
-<p class=description>
+<p class="description">
 Returns the current timeout value.
 </p>
 
@@ -180,8 +180,8 @@ the excess bytes are discarded. If there are less then
 <tt>size</tt> bytes available in the current datagram, the
 available bytes are returned.
 If <tt>size</tt> is omitted, the
-compile-time constant <a
-href=socket.html#datagramsize><tt>socket._DATAGRAMSIZE</tt></a> is used
+compile-time constant <a href="socket.html#datagramsize">
+<tt>socket._DATAGRAMSIZE</tt></a> is used
 (it defaults to 8192 bytes). Larger sizes will cause a
 temporary buffer to be allocated for the operation.
 </p>
@@ -286,45 +286,45 @@ name, and <tt>value</tt> depends on the option being set:
 <ul>
 <li> '<tt>dontroute</tt>': Indicates that outgoing
 messages should bypass the standard routing facilities.
-Receives a boolean value;
+Receives a boolean value;</li>
 <li> '<tt>broadcast</tt>': Requests permission to send
 broadcast datagrams on the socket.
-Receives a boolean value;
+Receives a boolean value;</li>
 <li> '<tt>reuseaddr</tt>': Indicates that the rules used in
 validating addresses supplied in a <tt>bind()</tt> call
 should allow reuse of local addresses.
-Receives a boolean value;
+Receives a boolean value;</li>
 <li> '<tt>reuseport</tt>': Allows completely duplicate
 bindings by multiple processes if they all set
 '<tt>reuseport</tt>' before binding the port.
-Receives a boolean value;
+Receives a boolean value;</li>
 <li> '<tt>ip-multicast-loop</tt>':
 Specifies whether or not a copy of an outgoing multicast
 datagram is delivered to the sending host as long as it is a
 member of the multicast group.
-Receives a boolean value;
+Receives a boolean value;</li>
 <li> '<tt>ipv6-v6only</tt>':
 Specifies whether to restrict <tt>inet6</tt> sockets to
 sending and receiving only IPv6 packets.
-Receive a boolean value;
+Receive a boolean value;</li>
 <li> '<tt>ip-multicast-if</tt>':
 Sets the interface over which outgoing multicast datagrams
 are sent.
-Receives an IP address;
+Receives an IP address;</li>
 <li> '<tt>ip-multicast-ttl</tt>':
 Sets the Time To Live in the IP header for outgoing
 multicast datagrams.
-Receives a number;
+Receives a number;</li>
 <li> '<tt>ip-add-membership</tt>':
 Joins the multicast group specified.
 Receives a table with fields
 <tt>multiaddr</tt> and <tt>interface</tt>, each containing an
-IP address;
+IP address;</li>
 <li> '<tt>ip-drop-membership</tt>': Leaves the multicast
 group specified.
 Receives a table with fields
 <tt>multiaddr</tt> and <tt>interface</tt>, each containing an
-IP address.
+IP address.</li>
 </ul>
 
 <p class="return">
@@ -332,7 +332,7 @@ The method returns 1 in case of success, or
 <b><tt>nil</tt></b> followed by an error message otherwise.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The descriptions above come from the man pages.
 </p>
 
@@ -381,11 +381,11 @@ is recommended when the same peer is used for several transmissions
 and can result in up to 30% performance gains.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Starting with LuaSocket 3.0, the host name resolution
 depends on whether the socket was created by <a
-href=#socket.udp><tt>socket.udp</tt></a> or <a
-href=#socket.udp6><tt>socket.udp6</tt></a>. Addresses from
+href="#socket.udp"><tt>socket.udp</tt></a> or <a
+href="#socket.udp6"><tt>socket.udp6</tt></a>. Addresses from
 the appropriate family are tried in succession until the
 first success or until the last failure.
 </p>
@@ -492,23 +492,23 @@ returned. In case of error, <b><tt>nil</tt></b> is returned, followed by
 an error message.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The choice between IPv4 and IPv6 happens during a call to
-<a href=#sendto><tt>sendto</tt></a>, <a
-href=#setpeername><tt>setpeername</tt></a>, or <a
-href=#setsockname><tt>sockname</tt></a>, depending on the address
+<a href="#sendto"><tt>sendto</tt></a>, <a
+href="#setpeername"><tt>setpeername</tt></a>, or <a
+href="#setsockname"><tt>sockname</tt></a>, depending on the address
 family obtained from the resolver.
 </p>
 
-<p class=note>
+<p class="note">
 Note: Before the choice between IPv4 and IPv6 happens,
 the internal socket object is invalid and therefore <a
-href=#setoption><tt>setoption</tt></a> will fail.
+href="#setoption"><tt>setoption</tt></a> will fail.
 </p>
 
 <!-- socket.udp4 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<p class="name" id="socket.udp">
+<p class="name" id="socket.udp4">
 socket.<b>udp4()</b>
 </p>
 
@@ -564,7 +564,7 @@ returned. In case of error, <b><tt>nil</tt></b> is returned, followed by
 an error message.
 </p>
 
-<p class=note>
+<p class="note">
 Note: The TCP object returned will have the option
 "<tt>ipv6-v6only</tt>" set to <tt><b>true</b></tt>.
 </p>
@@ -573,10 +573,10 @@ Note: The TCP object returned will have the option
 
 <!-- footer ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
-<div class=footer>
+<div class="footer">
 <hr>
 <center>
-<p class=bar>
+<p class="bar">
 <a href="index.html">home</a> &middot;
 <a href="index.html#download">download</a> &middot;
 <a href="installation.html">installation</a> &middot;

From c1eacfa6d24dc15476f5f9befa8370e2244931d4 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Tue, 22 Mar 2022 19:24:38 +0100
Subject: [PATCH 23/62] fix(docs) references to some constants added (#359)

---
 doc/socket.html | 6 ++++--
 doc/tcp.html    | 8 ++++++--
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/doc/socket.html b/doc/socket.html
index 68db7cc..c148114 100644
--- a/doc/socket.html
+++ b/doc/socket.html
@@ -255,7 +255,8 @@ changed status.
 
 <p class="note">
 <b>Note:</b> <tt>select</tt> can monitor a limited number
-of sockets, as defined by the constant <tt>socket._SETSIZE</tt>. This
+of sockets, as defined by the constant <a href="#setsize">
+<tt>socket._SETSIZE</tt></a>. This
 number may be as high as 1024 or as low as 64 by default,
 depending on the system. It is usually possible to change this
 at compile time. Invoking <tt>select</tt> with a larger
@@ -410,7 +411,8 @@ socket.<b>_SOCKETINVALID</b>
 </p>
 
 <p class="description">
-The OS value for an invalid socket.
+The OS value for an invalid socket. This can be used with <a href="tcp.html#getfd">
+<tt>tcp:getfd</tt></a> and <a href="tcp.html#setfd"><tt>tcp:setfd</tt></a> methods.
 </p>
 
 <!-- try ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
diff --git a/doc/tcp.html b/doc/tcp.html
index 2d6e327..9cc173e 100644
--- a/doc/tcp.html
+++ b/doc/tcp.html
@@ -209,7 +209,9 @@ Returns the underling socket descriptor or handle associated to the object.
 </p>
 
 <p class="return">
-The descriptor or handle. In case the object has been closed, the return will be -1.
+The descriptor or handle. In case the object has been closed, the return value
+will be -1. For an invalid socket it will be <a href="socket.html#socketinvalid">
+<tt>_SOCKETINVALID</tt></a>.
 </p>
 
 <p class="note">
@@ -611,7 +613,9 @@ server:<b>setfd(</b>fd<b>)</b>
 </p>
 
 <p class="description">
-Sets the underling socket descriptor or handle associated to the object. The current one is simply replaced, not closed, and no other change to the object state is made.
+Sets the underling socket descriptor or handle associated to the object. The current one
+is simply replaced, not closed, and no other change to the object state is made.
+To set it as invalid use <a href="socket.html#socketinvalid"><tt>_SOCKETINVALID</tt></a>.
 </p>
 
 <p class="return">

From f98977b2dac48fc66822402b095336e683715126 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 23 Mar 2022 00:09:53 +0300
Subject: [PATCH 24/62] =?UTF-8?q?Move=20doc=E2=86=92docs=20so=20we=20can?=
 =?UTF-8?q?=20serve=20it=20with=20GitHub=20Pages?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 {doc => docs}/dns.html          |   0
 {doc => docs}/ftp.html          |   0
 {doc => docs}/http.html         |   0
 {doc => docs}/index.html        |   0
 {doc => docs}/installation.html |   0
 {doc => docs}/introduction.html |   0
 {doc => docs}/ltn12.html        |   0
 {doc => docs}/lua05.ppt         | Bin
 {doc => docs}/luasocket.png     | Bin
 {doc => docs}/mime.html         |   0
 {doc => docs}/reference.css     |   0
 {doc => docs}/reference.html    |   0
 {doc => docs}/smtp.html         |   0
 {doc => docs}/socket.html       |   0
 {doc => docs}/tcp.html          |   0
 {doc => docs}/udp.html          |   0
 {doc => docs}/url.html          |   0
 luasocket-scm-3.rockspec        |   2 +-
 makefile.dist                   |  38 ++++++++++++++++----------------
 19 files changed, 20 insertions(+), 20 deletions(-)
 rename {doc => docs}/dns.html (100%)
 rename {doc => docs}/ftp.html (100%)
 rename {doc => docs}/http.html (100%)
 rename {doc => docs}/index.html (100%)
 rename {doc => docs}/installation.html (100%)
 rename {doc => docs}/introduction.html (100%)
 rename {doc => docs}/ltn12.html (100%)
 rename {doc => docs}/lua05.ppt (100%)
 rename {doc => docs}/luasocket.png (100%)
 rename {doc => docs}/mime.html (100%)
 rename {doc => docs}/reference.css (100%)
 rename {doc => docs}/reference.html (100%)
 rename {doc => docs}/smtp.html (100%)
 rename {doc => docs}/socket.html (100%)
 rename {doc => docs}/tcp.html (100%)
 rename {doc => docs}/udp.html (100%)
 rename {doc => docs}/url.html (100%)

diff --git a/doc/dns.html b/docs/dns.html
similarity index 100%
rename from doc/dns.html
rename to docs/dns.html
diff --git a/doc/ftp.html b/docs/ftp.html
similarity index 100%
rename from doc/ftp.html
rename to docs/ftp.html
diff --git a/doc/http.html b/docs/http.html
similarity index 100%
rename from doc/http.html
rename to docs/http.html
diff --git a/doc/index.html b/docs/index.html
similarity index 100%
rename from doc/index.html
rename to docs/index.html
diff --git a/doc/installation.html b/docs/installation.html
similarity index 100%
rename from doc/installation.html
rename to docs/installation.html
diff --git a/doc/introduction.html b/docs/introduction.html
similarity index 100%
rename from doc/introduction.html
rename to docs/introduction.html
diff --git a/doc/ltn12.html b/docs/ltn12.html
similarity index 100%
rename from doc/ltn12.html
rename to docs/ltn12.html
diff --git a/doc/lua05.ppt b/docs/lua05.ppt
similarity index 100%
rename from doc/lua05.ppt
rename to docs/lua05.ppt
diff --git a/doc/luasocket.png b/docs/luasocket.png
similarity index 100%
rename from doc/luasocket.png
rename to docs/luasocket.png
diff --git a/doc/mime.html b/docs/mime.html
similarity index 100%
rename from doc/mime.html
rename to docs/mime.html
diff --git a/doc/reference.css b/docs/reference.css
similarity index 100%
rename from doc/reference.css
rename to docs/reference.css
diff --git a/doc/reference.html b/docs/reference.html
similarity index 100%
rename from doc/reference.html
rename to docs/reference.html
diff --git a/doc/smtp.html b/docs/smtp.html
similarity index 100%
rename from doc/smtp.html
rename to docs/smtp.html
diff --git a/doc/socket.html b/docs/socket.html
similarity index 100%
rename from doc/socket.html
rename to docs/socket.html
diff --git a/doc/tcp.html b/docs/tcp.html
similarity index 100%
rename from doc/tcp.html
rename to docs/tcp.html
diff --git a/doc/udp.html b/docs/udp.html
similarity index 100%
rename from doc/udp.html
rename to docs/udp.html
diff --git a/doc/url.html b/docs/url.html
similarity index 100%
rename from doc/url.html
rename to docs/url.html
diff --git a/luasocket-scm-3.rockspec b/luasocket-scm-3.rockspec
index 4e1669c..0e1b0f9 100644
--- a/luasocket-scm-3.rockspec
+++ b/luasocket-scm-3.rockspec
@@ -127,7 +127,7 @@ build = {
     mingw32 = make_plat("mingw32")
   },
   copy_directories = {
-    "doc"
+    "docs"
     , "samples"
     , "etc"
     , "test" }
diff --git a/makefile.dist b/makefile.dist
index 45a8866..83c303e 100644
--- a/makefile.dist
+++ b/makefile.dist
@@ -92,23 +92,23 @@ MAKE = \
 	socket.vcxproj \
 	mime.vcxproj
 
-DOC = \
-	doc/dns.html \
-	doc/ftp.html \
-	doc/index.html \
-	doc/http.html \
-	doc/installation.html \
-	doc/introduction.html \
-	doc/ltn12.html \
-	doc/luasocket.png \
-	doc/mime.html \
-	doc/reference.css \
-	doc/reference.html \
-	doc/smtp.html \
-	doc/socket.html \
-	doc/tcp.html \
-	doc/udp.html \
-	doc/url.html
+DOCS = \
+	docs/dns.html \
+	docs/ftp.html \
+	docs/index.html \
+	docs/http.html \
+	docs/installation.html \
+	docs/introduction.html \
+	docs/ltn12.html \
+	docs/luasocket.png \
+	docs/mime.html \
+	docs/reference.css \
+	docs/reference.html \
+	docs/smtp.html \
+	docs/socket.html \
+	docs/tcp.html \
+	docs/udp.html \
+	docs/url.html
 
 dist:
 	mkdir -p $(DIST)
@@ -123,8 +123,8 @@ dist:
 	mkdir -p $(DIST)/src
 	cp -vf $(SRC) $(DIST)/src
 
-	mkdir -p $(DIST)/doc
-	cp -vf $(DOC) $(DIST)/doc
+	mkdir -p $(DIST)/docs
+	cp -vf $(DOCS) $(DIST)/docs
 
 	mkdir -p $(DIST)/samples
 	cp -vf $(SAMPLES) $(DIST)/samples

From 2eac8950396247b412c4089c23a46015c8cc12bb Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 23 Mar 2022 00:16:23 +0300
Subject: [PATCH 25/62] Update URL references to source repository

---
 README          | 8 ++++----
 docs/index.html | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/README b/README
index cd8ee59..7354ea0 100644
--- a/README
+++ b/README
@@ -1,11 +1,11 @@
 This is the LuaSocket 3.0-rc1. It has been tested on Windows 7, Mac OS X,
-and Linux. 
+and Linux.
 
-Please use the project page at GitHub 
+Please use the project page at GitHub
 
-    https://github.com/diegonehab/luasocket
+    https://github.com/lunarmodules/luasocket
 
-to file bug reports or propose changes. 
+to file bug reports or propose changes.
 
 Have fun,
 Diego Nehab.
diff --git a/docs/index.html b/docs/index.html
index e92b4d4..0364070 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -95,7 +95,7 @@ are it works well on most UNIX distributions and Windows flavors.
 
 <p>
 The current version of the library can be found at
-the <a href="https://github.com/diegonehab/luasocket">LuaSocket
+the <a href="https://github.com/lunarmodules/luasocket">LuaSocket
 project page</a> on GitHub. Besides the full C and Lua source code
 for the library, the distribution contains several examples,
 this user's manual and basic test procedures.

From 58f94e47d2f7a7cfc0aa2034a1b9ce679ce2731c Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 13:12:49 +0100
Subject: [PATCH 26/62] Update LICENSE to be recognizable as MIT (#363)

---
 LICENSE | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/LICENSE b/LICENSE
index b635451..a8ed03e 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,4 @@
-LuaSocket 3.0 license
-Copyright © 2004-2013 Diego Nehab
+Copyright (C) 2004-2022 Diego Nehab
 
 Permission is hereby granted, free of charge, to any person obtaining a
 copy of this software and associated documentation files (the "Software"),

From d9c08114da2ec8950498f71939f92a6dc0d237c1 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 17:11:43 +0100
Subject: [PATCH 27/62] chore; add Lua 5.4 to make files

---
 makefile     |  6 ++++++
 src/makefile | 12 ++++++------
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/makefile b/makefile
index f766a25..63d9985 100755
--- a/makefile
+++ b/makefile
@@ -33,6 +33,9 @@ install-both:
 	$(MAKE) clean
 	@cd src; $(MAKE) $(PLAT) LUAV=5.3
 	@cd src; $(MAKE) install LUAV=5.3
+	$(MAKE) clean
+	@cd src; $(MAKE) $(PLAT) LUAV=5.4
+	@cd src; $(MAKE) install LUAV=5.4
 
 install-both-unix:
 	$(MAKE) clean
@@ -44,6 +47,9 @@ install-both-unix:
 	$(MAKE) clean
 	@cd src; $(MAKE) $(PLAT) LUAV=5.3
 	@cd src; $(MAKE) install-unix LUAV=5.3
+	$(MAKE) clean
+	@cd src; $(MAKE) $(PLAT) LUAV=5.4
+	@cd src; $(MAKE) install-unix LUAV=5.4
 
 .PHONY: test
 
diff --git a/src/makefile b/src/makefile
index 522d378..f95498a 100755
--- a/src/makefile
+++ b/src/makefile
@@ -16,7 +16,7 @@
 # platform to build for
 PLAT?=linux
 
-# LUAV: 5.1 5.2
+# LUAV: 5.1 5.2 5.3 5.4
 # lua version to build against
 LUAV?=5.1
 
@@ -163,7 +163,7 @@ O_macosx=o
 CC_macosx=gcc
 DEF_macosx= -DLUASOCKET_$(DEBUG) -DUNIX_HAS_SUN_LEN
 CFLAGS_macosx=$(LUAINC:%=-I%) $(DEF) -Wall -O2 -fno-common
-LDFLAGS_macosx= -bundle -undefined dynamic_lookup -o 
+LDFLAGS_macosx= -bundle -undefined dynamic_lookup -o
 LD_macosx=gcc
 SOCKET_macosx=usocket.o
 
@@ -176,7 +176,7 @@ CC_linux=gcc
 DEF_linux=-DLUASOCKET_$(DEBUG)
 CFLAGS_linux=$(LUAINC:%=-I%) $(DEF) -Wall -Wshadow -Wextra \
 	-Wimplicit -O2 -ggdb3 -fpic
-LDFLAGS_linux=-O -shared -fpic -o 
+LDFLAGS_linux=-O -shared -fpic -o
 LD_linux=gcc
 SOCKET_linux=usocket.o
 
@@ -189,7 +189,7 @@ CC_freebsd=gcc
 DEF_freebsd=-DLUASOCKET_$(DEBUG) -DUNIX_HAS_SUN_LEN
 CFLAGS_freebsd=$(LUAINC:%=-I%) $(DEF) -Wall -Wshadow -Wextra \
 	-Wimplicit -O2 -ggdb3 -fpic
-LDFLAGS_freebsd=-O -shared -fpic -o 
+LDFLAGS_freebsd=-O -shared -fpic -o
 LD_freebsd=gcc
 SOCKET_freebsd=usocket.o
 
@@ -202,7 +202,7 @@ CC_solaris=gcc
 DEF_solaris=-DLUASOCKET_$(DEBUG)
 CFLAGS_solaris=$(LUAINC:%=-I%) $(DEF) -Wall -Wshadow -Wextra \
 	-Wimplicit -O2 -ggdb3 -fpic
-LDFLAGS_solaris=-lnsl -lsocket -lresolv -O -shared -fpic -o 
+LDFLAGS_solaris=-lnsl -lsocket -lresolv -O -shared -fpic -o
 LD_solaris=gcc
 SOCKET_solaris=usocket.o
 
@@ -215,7 +215,7 @@ CC_mingw=gcc
 DEF_mingw= -DLUASOCKET_$(DEBUG) \
 	-DWINVER=0x0501
 CFLAGS_mingw=$(LUAINC:%=-I%) $(DEF) -Wall -O2 -fno-common
-LDFLAGS_mingw= $(LUALIB) -shared -Wl,-s -lws2_32 -o 
+LDFLAGS_mingw= $(LUALIB) -shared -Wl,-s -lws2_32 -o
 LD_mingw=gcc
 SOCKET_mingw=wsocket.o
 

From 5ed8b66e6d0c295f95fade159ada0f97f482b2ac Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Thu, 24 Mar 2022 15:22:31 +0300
Subject: [PATCH 28/62] ci: Utilize new upstream Luacheck Action (#367)

---
 .github/workflows/luacheck.yml | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/luacheck.yml b/.github/workflows/luacheck.yml
index 597cd64..2f20456 100644
--- a/.github/workflows/luacheck.yml
+++ b/.github/workflows/luacheck.yml
@@ -7,13 +7,7 @@ jobs:
   luacheck:
     runs-on: ubuntu-20.04
     steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-    - name: Setup ‘lua’
-      uses: leafo/gh-actions-lua@v9
-    - name: Setup ‘luarocks’
-      uses: leafo/gh-actions-luarocks@v4
-    - name: Setup ‘luacheck’
-      run: luarocks install luacheck
-    - name: Run ‘luacheck’ linter
-      run: luacheck .
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Luacheck
+        uses: lunarmodules/luacheck@v0

From bac0b8dc274b46cf37bea02aa7edca8f1011a4b8 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Thu, 24 Mar 2022 18:14:43 +0300
Subject: [PATCH 29/62] ci: Use reusable workflow for luarocks deploy

---
 .github/workflows/deploy.yml | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 .github/workflows/deploy.yml

diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..acd66ea
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,34 @@
+name: Deploy
+
+on: [ push, workflow_dispatch ]
+
+jobs:
+
+  affected:
+    uses: lunarmodules/.github/.github/workflows/list_affected_rockspecs.yml@main
+
+  build:
+    needs: affected
+    if: ${{ needs.affected.outputs.rockspecs }}
+    uses: lunarmodules/.github/.github/workflows/test_build_rock.yml@main
+    with:
+      rockspecs: ${{ needs.affected.outputs.rockspecs }}
+
+  upload:
+    needs: [ affected, build ]
+    # Only run upload if:
+    # 1. We are on the canonical repository (no uploads from forks)
+    # 2. The current commit is either tagged or on the default branch (the workflow will upload dev/scm rockspecs any
+    #    time they are touched, tagged ones whenever the edited rockspec and tag match)
+    # 3. Some rockspecs were changed — this implies the commit changing the rockspec is the same one that gets tagged
+    if: >-
+      ${{
+        github.repository == 'lunarmodules/luasocket' &&
+        ( github.ref_name == 'master' || startsWith(github.ref, 'refs/tags/') ) &&
+        needs.affected.outputs.rockspecs
+      }}
+    uses: lunarmodules/.github/.github/workflows/upload_to_luarocks.yml@main
+    with:
+      rockspecs: ${{ needs.affected.outputs.rockspecs }}
+    secrets:
+      apikey: ${{ secrets.LUAROCKS_APIKEY }}

From b5b60f9d6fd116c377475b3f7431e297ce0e553c Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Thu, 24 Mar 2022 21:52:12 +0300
Subject: [PATCH 30/62] chore: Refactor existing news file as a changelog

---
 CHANGELOG.md  | 35 +++++++++++++++++++++++++++++++++++
 NEW           | 44 --------------------------------------------
 makefile.dist |  2 +-
 3 files changed, 36 insertions(+), 45 deletions(-)
 create mode 100644 CHANGELOG.md
 delete mode 100644 NEW

diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5db13cb
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,35 @@
+# Changelog
+
+## [v3.0-rc1](https://github.com/lunarmodules/luasocket/releases/v3.0-rc1) — 2013-06-14
+
+Main changes for LuaSocket 3.0-rc1 are IPv6 support and Lua 5.2 compatibility.
+
+* Added: Compatible with Lua 5.2
+  - Note that unless you define LUA_COMPAT_MODULE, package tables will not be exported as globals!
+* Added: IPv6 support;
+  - Socket.connect and socket.bind support IPv6 addresses;
+  - Getpeername and getsockname support IPv6 addresses, and return the socket family as a third value;
+  - URL module updated to support IPv6 host names;
+  - New socket.tcp6 and socket.udp6 functions;
+  - New socket.dns.getaddrinfo and socket.dns.getnameinfo functions;
+* Added: getoption method;
+* Fixed: url.unescape was returning additional values;
+* Fixed: mime.qp, mime.unqp, mime.b64, and mime.unb64 could mistaking their own stack slots for functions arguments;
+* Fixed: Receiving zero-length datagram is now possible;
+* Improved: Hidden all internal library symbols;
+* Improved: Better error messages;
+* Improved: Better documentation of socket options.
+* Fixed: manual sample of HTTP authentication now uses correct "authorization" header (Alexandre Ittner);
+* Fixed: failure on bind() was destroying the socket (Sam Roberts);
+* Fixed: receive() returns immediatelly if prefix can satisfy bytes requested (M Joonas Pihlaja);
+* Fixed: multicast didn't work on Windows, or anywhere else for that matter (Herbert Leuwer, Adrian Sietsma);
+* Fixed: select() now reports an error when called with more sockets than FD_SETSIZE (Lorenzo Leonini);
+* Fixed: manual links to home.html changed to index.html (Robert Hahn);
+* Fixed: mime.unb64() would return an empty string on results that started with a null character (Robert Raschke);
+* Fixed: HTTP now automatically redirects on 303 and 307 (Jonathan Gray);
+* Fixed: calling sleep() with negative numbers could block forever, wasting CPU. Now it returns immediately (MPB);
+* Improved: FTP commands are now sent in upper case to help buggy servers (Anders Eurenius);
+* Improved: known headers now sent in canonic capitalization to help buggy servers (Joseph Stewart);
+* Improved: Clarified tcp:receive() in the manual (MPB);
+* Improved: Decent makefiles (LHF).
+* Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).
diff --git a/NEW b/NEW
deleted file mode 100644
index 0bff64c..0000000
--- a/NEW
+++ /dev/null
@@ -1,44 +0,0 @@
-What's New
-
-Main changes for LuaSocket 3.0-rc1 are IPv6 support and Lua 5.2 compatibility. 
-
-    * Added: Compatible with Lua 5.2
-        - Note that unless you define LUA_COMPAT_MODULE, package
-          tables will not be exported as globals! 
-    * Added: IPv6 support;
-        - Socket.connect and socket.bind support IPv6 addresses;
-        - Getpeername and getsockname support IPv6 addresses, and
-          return the socket family as a third value;
-        - URL module updated to support IPv6 host names;
-        - New socket.tcp6 and socket.udp6 functions;
-        - New socket.dns.getaddrinfo and socket.dns.getnameinfo functions; 
-    * Added: getoption method;
-    * Fixed: url.unescape was returning additional values;
-    * Fixed: mime.qp, mime.unqp, mime.b64, and mime.unb64 could
-      mistaking their own stack slots for functions arguments;
-    * Fixed: Receiving zero-length datagram is now possible;
-    * Improved: Hidden all internal library symbols;
-    * Improved: Better error messages;
-    * Improved: Better documentation of socket options. 
-    * Fixed: manual sample of HTTP authentication now uses correct
-      "authorization" header (Alexandre Ittner);
-    * Fixed: failure on bind() was destroying the socket (Sam Roberts); 
-    * Fixed: receive() returns immediatelly if prefix can satisfy
-      bytes requested (M Joonas Pihlaja);
-    * Fixed: multicast didn't work on Windows, or anywhere
-      else for that matter (Herbert Leuwer, Adrian Sietsma);
-    * Fixed: select() now reports an error when called with more
-      sockets than FD_SETSIZE (Lorenzo Leonini);
-    * Fixed: manual links to home.html changed to index.html (Robert Hahn);
-    * Fixed: mime.unb64() would return an empty string on results that started
-      with a null character (Robert Raschke);
-    * Fixed: HTTP now automatically redirects on 303 and 307 (Jonathan Gray);
-    * Fixed: calling sleep() with negative numbers could
-      block forever, wasting CPU. Now it returns immediately (MPB);
-    * Improved: FTP commands are now sent in upper case to
-      help buggy servers (Anders Eurenius);
-    * Improved: known headers now sent in canonic
-      capitalization to help buggy servers (Joseph Stewart);
-    * Improved: Clarified tcp:receive() in the manual (MPB);
-    * Improved: Decent makefiles (LHF).
-    * Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).
diff --git a/makefile.dist b/makefile.dist
index 83c303e..34914c3 100644
--- a/makefile.dist
+++ b/makefile.dist
@@ -112,7 +112,7 @@ DOCS = \
 
 dist:
 	mkdir -p $(DIST)
-	cp -vf NEW $(DIST)
+	cp -vf CHANGELOG.md $(DIST)
 	cp -vf LICENSE $(DIST)
 	cp -vf README $(DIST)
 	cp -vf $(MAKE) $(DIST)

From e8633157298eff538da3cb514cf2e2ad65f45d9c Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Thu, 24 Mar 2022 22:39:18 +0300
Subject: [PATCH 31/62] chore: Draft v3 release notes

---
 CHANGELOG.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5db13cb..931bfa4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Changelog
 
+## [v3.0.0](https://github.com/lunarmodules/luasocket/releases/v3.0.0) — unreleased
+
+The last time LuaSocket had a stable release tag was 14 years ago when 2.0.2 was tagged.
+A v3 release candidate was tagged 9 years ago.
+Since then it has been downloaded over 3 million times.
+Additionally the Git repository regularly gets several hundred clones a day.
+But 9 years is a long time and even the release candidate has grown a bit long in the tooth.
+Many Linux distros have packaged the current Git HEAD or some specific tested point as dated or otherwise labeled releases.
+256 commits later and having been migrated to the @lunarmodules org namespace on GitHub, please welcome v3.
+
+This release is a "safe-harbor" tag that represents a minimal amount of changes to get a release tagged.
+Beyond some CI tooling, very little code has changed since migration to @lunarmodules ([5b18e47..e47d98f](https://github.com/lunarmodules/luasocket/compare/5b18e47..e47d98f?w=1)):
+
+* Lua 5.4.3+ support – @pkulchenko, @Zash
+* Cleanup minor issues to get a code linter to pass – @Tieske, @jyoui, @alerque
+* Update Visual Studio build rules for Lua 5.1 – @ewestbrook
+* Set http transfer-encoding even without content-length – @tokenrove
+
+Prior to migration to @lunarmodules ([v3.0-rc1..5b18e47](https://github.com/lunarmodules/luasocket/compare/v3.0-rc1..5b18e47?w=1)) many things happened of which the author of this changelog is not fully apprised.
+Your best bet if it affects your project somehow is to read the commit log & diffs yourself.
+
 ## [v3.0-rc1](https://github.com/lunarmodules/luasocket/releases/v3.0-rc1) — 2013-06-14
 
 Main changes for LuaSocket 3.0-rc1 are IPv6 support and Lua 5.2 compatibility.
@@ -33,3 +54,5 @@ Main changes for LuaSocket 3.0-rc1 are IPv6 support and Lua 5.2 compatibility.
 * Improved: Clarified tcp:receive() in the manual (MPB);
 * Improved: Decent makefiles (LHF).
 * Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).
+
+## [v2.0.2](https://github.com/lunarmodules/luasocket/releases/v2.0.2) — 2007-09-11

From d3777f9d06df58732e6f87c8fb94efc984652c63 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Thu, 24 Mar 2022 23:32:57 +0300
Subject: [PATCH 32/62] chore: Start a Markdown era readme

---
 .github/workflows/build.yml |  2 +-
 README                      | 11 -----------
 README.md                   | 12 ++++++++++++
 makefile.dist               |  2 +-
 4 files changed, 14 insertions(+), 13 deletions(-)
 delete mode 100644 README
 create mode 100644 README.md

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 17cad49..d6fe214 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,4 +1,4 @@
-name: Test build
+name: Build
 
 on:
   push:
diff --git a/README b/README
deleted file mode 100644
index 7354ea0..0000000
--- a/README
+++ /dev/null
@@ -1,11 +0,0 @@
-This is the LuaSocket 3.0-rc1. It has been tested on Windows 7, Mac OS X,
-and Linux.
-
-Please use the project page at GitHub
-
-    https://github.com/lunarmodules/luasocket
-
-to file bug reports or propose changes.
-
-Have fun,
-Diego Nehab.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..af722be
--- /dev/null
+++ b/README.md
@@ -0,0 +1,12 @@
+# LuaSocket
+
+
+[![Build](https://img.shields.io/github/workflow/status/lunarmodules/luasocket/Build?label=Build=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Build)
+[![Luacheck](https://img.shields.io/github/workflow/status/lunarmodules/luasocket/Luacheck?label=Luacheck&logo=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Luacheck)
+[![GitHub tag (latest SemVer)](https://img.shields.io/github/v/tag/lunarmodules/luasocket?label=Tag&logo=GitHub)](https://github.com/lunarmodules/luasocket/releases)
+[![Luarocks](https://img.shields.io/luarocks/v/lunarmodules/luasocket?label=Luarocks&logo=Lua)](https://luarocks.org/modules/lunarmodules/luasocket)
+
+LuaSocket is a Lua extension library composed of two parts:
+
+1. a set of C modules that provide support for the TCP and UDP transport layers, and
+2. a set of Lua modules that provide functions commonly needed by applications that deal with the Internet.
diff --git a/makefile.dist b/makefile.dist
index 34914c3..3a2e100 100644
--- a/makefile.dist
+++ b/makefile.dist
@@ -114,7 +114,7 @@ dist:
 	mkdir -p $(DIST)
 	cp -vf CHANGELOG.md $(DIST)
 	cp -vf LICENSE $(DIST)
-	cp -vf README $(DIST)
+	cp -vf README.md $(DIST)
 	cp -vf $(MAKE) $(DIST)
 
 	mkdir -p $(DIST)/etc

From f7f0a77a3dbcd066c2f228ada63ee78546a01f78 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Fri, 25 Mar 2022 10:09:13 +0300
Subject: [PATCH 33/62] docs: Drop obsolete changelog from docs index

---
 docs/index.html | 76 -------------------------------------------------
 1 file changed, 76 deletions(-)

diff --git a/docs/index.html b/docs/index.html
index 0364070..5982071 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -121,76 +121,6 @@ Aurich, Liam Devine, Alexey Melnichuk, and everybody else
 that has helped bring this library back to life.
 </p>
 
-<!-- whatsnew +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
-
-<h2 id="new">What's New</h2>
-
-<p>
-Main changes for LuaSocket&nbsp;3.0-rc1 are IPv6 support
-and Lua&nbsp;5.2 compatibility.
-</p>
-
-<ul>
-<li> Added: Compatible with Lua&nbsp;5.2</li>
-<ul>
-<li> Note that unless you define <tt>LUA_COMPAT_MODULE</tt>,
-package tables will <em>not</em> be exported as globals!</li>
-</ul>
-<li> Added: IPv6 support;</li>
-<ul>
-<li> <tt>Socket.connect</tt> and <tt>socket.bind</tt> support IPv6 addresses;</li>
-<li> <tt>Getpeername</tt> and <tt>getsockname</tt> support
-IPv6 addresses, and return the socket family as a third value;</li>
-<li> URL module updated to support IPv6 host names;</li>
-<li> New <tt>socket.tcp6</tt> and <tt>socket.udp6</tt> functions;</li>
-<li> New <tt>socket.dns.getaddrinfo</tt> and
-    <tt>socket.dns.getnameinfo</tt> functions;</li>
-</ul>
-<li> Added: <tt>getoption</tt> method;</li>
-<li> Fixed: <tt>url.unescape</tt> was returning additional values;</li>
-<li> Fixed: <tt>mime.qp</tt>, <tt>mime.unqp</tt>,
-    <tt>mime.b64</tt>, and <tt>mime.unb64</tt> could
-    mistaking their own stack slots for functions arguments;</li>
-<li> Fixed: Receiving zero-length datagram is now possible;</li>
-<li> Improved: Hidden all internal library symbols;</li>
-<li> Improved: Better error messages;</li>
-<li> Improved: Better documentation of socket options.</li>
-<li> Fixed: manual sample of HTTP authentication now uses correct
-     "authorization" header (Alexandre Ittner);</li>
-<li> Fixed: failure on bind() was destroying the socket (Sam Roberts);</li>
-<li> Fixed: receive() returns immediatelly if prefix can satisfy
-     bytes requested (M Joonas Pihlaja);</li>
-<li> Fixed: multicast didn't work on Windows, or anywhere
-     else for that matter (Herbert Leuwer, Adrian Sietsma);</li>
-<li> Fixed: select() now reports an error when called with more
-     sockets than FD_SETSIZE (Lorenzo Leonini);</li>
-<li> Fixed: manual links to home.html changed to index.html
-(Robert Hahn);</li>
-<li> Fixed: mime.unb64() would return an empty string on results that started
-     with a null character (Robert Raschke);</li>
-<li> Fixed: HTTP now automatically redirects on 303 and 307 (Jonathan Gray);</li>
-<li> Fixed: calling sleep() with negative numbers could
-     block forever, wasting CPU. Now it returns immediately (MPB);</li>
-<li> Improved: FTP commands are now sent in upper case to
-     help buggy servers (Anders Eurenius);</li>
-<li> Improved: known headers now sent in canonic
-     capitalization to help buggy servers (Joseph Stewart);</li>
-<li> Improved: Clarified tcp:receive() in the manual (MPB);</li>
-<li> Improved: Decent makefiles (LHF).</li>
-<li> Fixed: RFC links in documentation now point to IETF (Cosmin Apreutesei).</li>
-</ul>
-
-<!-- old ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
-
-<h2 id="old">Old Versions</h2>
-
-<p>
-All  previous versions  of the  LuaSocket library  can be  downloaded <a
-href="http://www.impa.br/~diego/software/luasocket/old">
-here</a>. Although these  versions are  no longer  supported, they  are
-still available for those that have compatibility issues.
-</p>
-
 <!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
 
 <div class="footer">
@@ -202,12 +132,6 @@ still available for those that have compatibility issues.
 <a href="introduction.html">introduction</a> &middot;
 <a href="reference.html">reference</a>
 </p>
-<p>
-<small>
-Last modified by Diego Nehab on <br>
-Tue Jun 11 18:50:23 HKT 2013
-</small>
-</p>
 </center>
 </div>
 

From 020c2c746b5a82871e9b7d0c65742f15fa420289 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Fri, 25 Mar 2022 09:52:38 +0300
Subject: [PATCH 34/62] chore: Copy-edit description in dev rockspec

---
 luasocket-scm-3.rockspec | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/luasocket-scm-3.rockspec b/luasocket-scm-3.rockspec
index 0e1b0f9..71f335c 100644
--- a/luasocket-scm-3.rockspec
+++ b/luasocket-scm-3.rockspec
@@ -7,9 +7,9 @@ source = {
 description = {
   summary = "Network support for the Lua language",
   detailed = [[
-      LuaSocket is a Lua extension library that is composed by two parts: a C core
-      that provides support for the TCP and UDP transport layers, and a set of Lua
-      modules that add support for functionality commonly needed by applications
+      LuaSocket is a Lua extension library composed of two parts: a set of C
+      modules that provide support for the TCP and UDP transport layers, and a
+      set of Lua modules that provide functions commonly needed by applications
       that deal with the Internet.
    ]],
   homepage = "https://github.com/lunarmodules/luasocket",

From 88c8a85cb6528232288ec590910b7a966aace52b Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Fri, 25 Mar 2022 09:56:50 +0300
Subject: [PATCH 35/62] chore: Release v3.0.0

---
 CHANGELOG.md                         |   2 +-
 docs/index.html                      |   7 +-
 rockspecs/luasocket-3.0.0-1.rockspec | 134 +++++++++++++++++++++++++++
 3 files changed, 138 insertions(+), 5 deletions(-)
 create mode 100644 rockspecs/luasocket-3.0.0-1.rockspec

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 931bfa4..0de05f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## [v3.0.0](https://github.com/lunarmodules/luasocket/releases/v3.0.0) — unreleased
+## [v3.0.0](https://github.com/lunarmodules/luasocket/releases/v3.0.0) — 2022-03-25
 
 The last time LuaSocket had a stable release tag was 14 years ago when 2.0.2 was tagged.
 A v3 release candidate was tagged 9 years ago.
diff --git a/docs/index.html b/docs/index.html
index 5982071..31e18ad 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -87,10 +87,9 @@ Author: <a href="http://www.impa.br/~diego">Diego Nehab</a>
 <h2 id="download">Download</h2>
 
 <p>
-LuaSocket version 3.0-rc1 is now available for download!
-It is compatible with  Lua&nbsp;5.1 and 5.2, and has
-been tested on Windows&nbsp;XP, Linux, and Mac OS X. Chances
-are it works well on most UNIX distributions and Windows flavors.
+LuaSocket version 3.0.0 is now available for download!
+It is compatible with Lua&nbsp;5.1 through 5.4.
+Chances are it works well on most UNIX distributions and Windows flavors.
 </p>
 
 <p>
diff --git a/rockspecs/luasocket-3.0.0-1.rockspec b/rockspecs/luasocket-3.0.0-1.rockspec
new file mode 100644
index 0000000..4cf4acf
--- /dev/null
+++ b/rockspecs/luasocket-3.0.0-1.rockspec
@@ -0,0 +1,134 @@
+package = "LuaSocket"
+version = "3.0.0-1"
+source = {
+  url = "git+https://github.com/lunarmodules/luasocket.git",
+  tag = "v3.0.0"
+}
+description = {
+  summary = "Network support for the Lua language",
+  detailed = [[
+      LuaSocket is a Lua extension library composed of two parts: a set of C
+      modules that provide support for the TCP and UDP transport layers, and a
+      set of Lua modules that provide functions commonly needed by applications
+      that deal with the Internet.
+   ]],
+  homepage = "https://github.com/lunarmodules/luasocket",
+  license = "MIT"
+}
+dependencies = {
+  "lua >= 5.1"
+}
+
+local function make_plat(plat)
+  local defines = {
+    unix = {
+      "LUASOCKET_DEBUG"
+    },
+    macosx = {
+      "LUASOCKET_DEBUG",
+      "UNIX_HAS_SUN_LEN"
+    },
+    win32 = {
+      "LUASOCKET_DEBUG",
+      "NDEBUG"
+    },
+    mingw32 = {
+      "LUASOCKET_DEBUG",
+      "LUASOCKET_INET_PTON",
+      "WINVER=0x0501"
+    }
+  }
+  local modules = {
+    ["socket.core"] = {
+      sources = {
+        "src/luasocket.c"
+        , "src/timeout.c"
+        , "src/buffer.c"
+        , "src/io.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/inet.c"
+        , "src/except.c"
+        , "src/select.c"
+        , "src/tcp.c"
+        , "src/udp.c"
+        , "src/compat.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    },
+    ["mime.core"] = {
+      sources = { "src/mime.c", "src/compat.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    },
+    ["socket.http"]    = "src/http.lua",
+    ["socket.url"]     = "src/url.lua",
+    ["socket.tp"]      = "src/tp.lua",
+    ["socket.ftp"]     = "src/ftp.lua",
+    ["socket.headers"] = "src/headers.lua",
+    ["socket.smtp"]    = "src/smtp.lua",
+    ltn12              = "src/ltn12.lua",
+    socket             = "src/socket.lua",
+    mime               = "src/mime.lua"
+  }
+  if plat == "unix"
+    or plat == "macosx"
+    or plat == "haiku"
+  then
+    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/usocket.c"
+    if plat == "haiku" then
+      modules["socket.core"].libraries = {"network"}
+    end
+    modules["socket.unix"] = {
+      sources = {
+        "src/buffer.c"
+        , "src/compat.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/timeout.c"
+        , "src/io.c"
+        , "src/usocket.c"
+        , "src/unix.c"
+        , "src/unixdgram.c"
+        , "src/unixstream.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    }
+    modules["socket.serial"] = {
+      sources = {
+        "src/buffer.c"
+        , "src/compat.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/timeout.c"
+        , "src/io.c"
+        , "src/usocket.c"
+        , "src/serial.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    }
+  end
+  if  plat == "win32"
+    or plat == "mingw32"
+  then
+    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
+    modules["socket.core"].libraries = { "ws2_32" }
+  end
+  return { modules = modules }
+end
+
+build = {
+  type = "builtin",
+  platforms = {
+    unix = make_plat("unix"),
+    macosx = make_plat("macosx"),
+    haiku = make_plat("haiku"),
+    win32 = make_plat("win32"),
+    mingw32 = make_plat("mingw32")
+  },
+  copy_directories = {
+    "docs"
+    , "samples"
+    , "etc"
+    , "test" }
+}

From 1d61853ab84f0724502205f45849c2347d6a49ac Mon Sep 17 00:00:00 2001
From: Robert Scheck <robert-scheck@users.noreply.github.com>
Date: Mon, 28 Mar 2022 13:53:32 +0200
Subject: [PATCH 36/62] chore: Update internal version references to match
 release (#370)

---
 docs/installation.html | 2 +-
 makefile.dist          | 2 +-
 src/luasocket.h        | 2 +-
 src/makefile           | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/installation.html b/docs/installation.html
index 28a9fbb..dcf9d36 100644
--- a/docs/installation.html
+++ b/docs/installation.html
@@ -89,7 +89,7 @@ it should be easy to use LuaSocket. Just fire the interpreter and use the
 Lua 5.2.2  Copyright (C) 1994-2013 Lua.org, PUC-Rio
 &gt; socket = require("socket")
 &gt; print(socket._VERSION)
---&gt; LuaSocket 3.0-rc1
+--&gt; LuaSocket 3.0.0
 </pre>
 
 <p> Each module loads their dependencies automatically, so you only need to
diff --git a/makefile.dist b/makefile.dist
index 3a2e100..a27ba57 100644
--- a/makefile.dist
+++ b/makefile.dist
@@ -1,7 +1,7 @@
 #--------------------------------------------------------------------------
 # Distribution makefile
 #--------------------------------------------------------------------------
-DIST = luasocket-3.0-rc1
+DIST = luasocket-3.0.0
 
 TEST = \
 	test/README \
diff --git a/src/luasocket.h b/src/luasocket.h
index d22b1be..1017fba 100644
--- a/src/luasocket.h
+++ b/src/luasocket.h
@@ -10,7 +10,7 @@
 /*-------------------------------------------------------------------------* \
 * Current socket library version
 \*-------------------------------------------------------------------------*/
-#define LUASOCKET_VERSION    "LuaSocket 3.0-rc1"
+#define LUASOCKET_VERSION    "LuaSocket 3.0.0"
 #define LUASOCKET_COPYRIGHT  "Copyright (C) 1999-2013 Diego Nehab"
 
 /*-------------------------------------------------------------------------*\
diff --git a/src/makefile b/src/makefile
index f95498a..06f4d19 100755
--- a/src/makefile
+++ b/src/makefile
@@ -272,7 +272,7 @@ SOCKET_win64=wsocket.obj
 #
 SO=$(SO_$(PLAT))
 O=$(O_$(PLAT))
-SOCKET_V=3.0-rc1
+SOCKET_V=3.0.0
 MIME_V=1.0.3
 SOCKET_SO=socket-$(SOCKET_V).$(SO)
 MIME_SO=mime-$(MIME_V).$(SO)

From ec7d7a2b8feead992f0f9197ae299fe410ec16a0 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 15:57:45 +0100
Subject: [PATCH 37/62] cleanup; delete unreferenced powerpoint file from docs

---
 docs/lua05.ppt | Bin 304128 -> 0 bytes
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 docs/lua05.ppt

diff --git a/docs/lua05.ppt b/docs/lua05.ppt
deleted file mode 100644
index e2b7ab4b304505811d6f481ac1ab7147af3e8ebc..0000000000000000000000000000000000000000
GIT binary patch
literal 0
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From 0fc0122df8050db8cbb75f75927ab3ace0fc60bd Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 15:58:50 +0100
Subject: [PATCH 38/62] cleanup; move logo file into docs, more appropriate

---
 logo.ps => docs/logo.ps | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename logo.ps => docs/logo.ps (100%)

diff --git a/logo.ps b/docs/logo.ps
similarity index 100%
rename from logo.ps
rename to docs/logo.ps

From 7187be8b76452aa968726180af24deaaa545431d Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 16:01:50 +0100
Subject: [PATCH 39/62] cleanup; delete the ./gem folder

---
 gem/ex1.lua       |   4 -
 gem/ex10.lua      |  17 --
 gem/ex11.lua      |   7 -
 gem/ex12.lua      |  34 ---
 gem/ex2.lua       |  11 -
 gem/ex3.lua       |  15 -
 gem/ex4.lua       |   5 -
 gem/ex5.lua       |  15 -
 gem/ex6.lua       |  14 -
 gem/ex7.lua       |  16 --
 gem/ex8.lua       |   5 -
 gem/ex9.lua       |   3 -
 gem/gem.c         |  54 ----
 gem/gt.b64        | 206 --------------
 gem/input.bin     | Bin 11732 -> 0 bytes
 gem/ltn012.tex    | 695 ----------------------------------------------
 gem/luasocket.png | Bin 11732 -> 0 bytes
 gem/makefile      |  14 -
 gem/myps2pdf      | 113 --------
 gem/t1.lua        |  25 --
 gem/t1lf.txt      |   5 -
 gem/t2.lua        |  36 ---
 gem/t2.txt        |   4 -
 gem/t2gt.qp       |   5 -
 gem/t3.lua        |  25 --
 gem/t4.lua        |  10 -
 gem/t5.lua        |  30 --
 gem/test.lua      |  46 ---
 28 files changed, 1414 deletions(-)
 delete mode 100644 gem/ex1.lua
 delete mode 100644 gem/ex10.lua
 delete mode 100644 gem/ex11.lua
 delete mode 100644 gem/ex12.lua
 delete mode 100644 gem/ex2.lua
 delete mode 100644 gem/ex3.lua
 delete mode 100644 gem/ex4.lua
 delete mode 100644 gem/ex5.lua
 delete mode 100644 gem/ex6.lua
 delete mode 100644 gem/ex7.lua
 delete mode 100644 gem/ex8.lua
 delete mode 100644 gem/ex9.lua
 delete mode 100644 gem/gem.c
 delete mode 100644 gem/gt.b64
 delete mode 100644 gem/input.bin
 delete mode 100644 gem/ltn012.tex
 delete mode 100644 gem/luasocket.png
 delete mode 100644 gem/makefile
 delete mode 100755 gem/myps2pdf
 delete mode 100644 gem/t1.lua
 delete mode 100644 gem/t1lf.txt
 delete mode 100644 gem/t2.lua
 delete mode 100644 gem/t2.txt
 delete mode 100644 gem/t2gt.qp
 delete mode 100644 gem/t3.lua
 delete mode 100644 gem/t4.lua
 delete mode 100644 gem/t5.lua
 delete mode 100644 gem/test.lua

diff --git a/gem/ex1.lua b/gem/ex1.lua
deleted file mode 100644
index 327a542..0000000
--- a/gem/ex1.lua
+++ /dev/null
@@ -1,4 +0,0 @@
-local CRLF = "\013\010"
-local input = source.chain(source.file(io.stdin), normalize(CRLF))
-local output = sink.file(io.stdout)
-pump.all(input, output)
diff --git a/gem/ex10.lua b/gem/ex10.lua
deleted file mode 100644
index 2b1b98f..0000000
--- a/gem/ex10.lua
+++ /dev/null
@@ -1,17 +0,0 @@
-function pump.step(src, snk)
-  local chunk, src_err = src()
-  local ret, snk_err = snk(chunk, src_err)
-  if chunk and ret then return 1
-  else return nil, src_err or snk_err end
-end
-
-function pump.all(src, snk, step)
-    step = step or pump.step
-    while true do
-        local ret, err = step(src, snk)
-        if not ret then
-            if err then return nil, err
-            else return 1 end
-        end
-    end
-end
diff --git a/gem/ex11.lua b/gem/ex11.lua
deleted file mode 100644
index 79c99af..0000000
--- a/gem/ex11.lua
+++ /dev/null
@@ -1,7 +0,0 @@
-local input = source.chain(
-  source.file(io.open("input.bin", "rb")),
-  encode("base64"))
-local output = sink.chain(
-  wrap(76),
-  sink.file(io.open("output.b64", "w")))
-pump.all(input, output)
diff --git a/gem/ex12.lua b/gem/ex12.lua
deleted file mode 100644
index de17d76..0000000
--- a/gem/ex12.lua
+++ /dev/null
@@ -1,34 +0,0 @@
-local smtp = require"socket.smtp"
-local mime = require"mime"
-local ltn12 = require"ltn12"
-
-CRLF = "\013\010"
-
-local message = smtp.message{
-  headers = {
-    from = "Sicrano <sicrano@example.com>",
-    to = "Fulano <fulano@example.com>",
-    subject = "A message with an attachment"},
-  body = {
-    preamble = "Hope you can see the attachment" .. CRLF,
-    [1] = {
-      body = "Here is our logo" .. CRLF},
-    [2] = {
-      headers = {
-        ["content-type"] = 'image/png; name="luasocket.png"',
-        ["content-disposition"] =
-          'attachment; filename="luasocket.png"',
-        ["content-description"] = 'LuaSocket logo',
-        ["content-transfer-encoding"] = "BASE64"},
-      body = ltn12.source.chain(
-        ltn12.source.file(io.open("luasocket.png", "rb")),
-        ltn12.filter.chain(
-          mime.encode("base64"),
-          mime.wrap()))}}}
-
-assert(smtp.send{
-  rcpt = "<diego@cs.princeton.edu>",
-  from = "<diego@cs.princeton.edu>",
-  server = "localhost",
-  port = 2525,
-  source = message})
diff --git a/gem/ex2.lua b/gem/ex2.lua
deleted file mode 100644
index 94bde66..0000000
--- a/gem/ex2.lua
+++ /dev/null
@@ -1,11 +0,0 @@
-function filter.cycle(lowlevel, context, extra)
-  return function(chunk)
-    local ret
-    ret, context = lowlevel(context, chunk, extra)
-    return ret
-  end
-end
-
-function normalize(marker)
-  return filter.cycle(eol, 0, marker)
-end
diff --git a/gem/ex3.lua b/gem/ex3.lua
deleted file mode 100644
index 60b4423..0000000
--- a/gem/ex3.lua
+++ /dev/null
@@ -1,15 +0,0 @@
-local function chainpair(f1, f2)
-  return function(chunk)
-    local ret = f2(f1(chunk))
-    if chunk then return ret
-    else return (ret or "") .. (f2() or "") end
-  end
-end
-
-function filter.chain(...)
-  local f = select(1, ...)
-  for i = 2, select('#', ...) do
-    f = chainpair(f, select(i, ...))
-  end
-  return f
-end
diff --git a/gem/ex4.lua b/gem/ex4.lua
deleted file mode 100644
index c48b77e..0000000
--- a/gem/ex4.lua
+++ /dev/null
@@ -1,5 +0,0 @@
-local qp = filter.chain(normalize(CRLF), encode("quoted-printable"),
-  wrap("quoted-printable"))
-local input = source.chain(source.file(io.stdin), qp)
-local output = sink.file(io.stdout)
-pump.all(input, output)
diff --git a/gem/ex5.lua b/gem/ex5.lua
deleted file mode 100644
index 196b30a..0000000
--- a/gem/ex5.lua
+++ /dev/null
@@ -1,15 +0,0 @@
-function source.empty(err)
-  return function()
-    return nil, err
-  end
-end
-
-function source.file(handle, io_err)
-  if handle then
-    return function()
-      local chunk = handle:read(20)
-      if not chunk then handle:close() end
-      return chunk
-    end
-  else return source.empty(io_err or "unable to open file") end
-end
diff --git a/gem/ex6.lua b/gem/ex6.lua
deleted file mode 100644
index a3fdca0..0000000
--- a/gem/ex6.lua
+++ /dev/null
@@ -1,14 +0,0 @@
-function source.chain(src, f)
-  return function()
-    if not src then
-      return nil
-    end
-    local chunk, err = src()
-    if not chunk then
-      src = nil
-      return f(nil)
-    else
-      return f(chunk)
-    end
-  end
-end
diff --git a/gem/ex7.lua b/gem/ex7.lua
deleted file mode 100644
index c766988..0000000
--- a/gem/ex7.lua
+++ /dev/null
@@ -1,16 +0,0 @@
-function sink.table(t)
-  t = t or {}
-  local f = function(chunk, err)
-    if chunk then table.insert(t, chunk) end
-    return 1
-  end
-  return f, t
-end
-
-local function null()
-  return 1
-end
-
-function sink.null()
-  return null
-end
diff --git a/gem/ex8.lua b/gem/ex8.lua
deleted file mode 100644
index 81e288c..0000000
--- a/gem/ex8.lua
+++ /dev/null
@@ -1,5 +0,0 @@
-local input = source.file(io.stdin)
-local output, t = sink.table()
-output = sink.chain(normalize(CRLF), output)
-pump.all(input, output)
-io.write(table.concat(t))
diff --git a/gem/ex9.lua b/gem/ex9.lua
deleted file mode 100644
index b857698..0000000
--- a/gem/ex9.lua
+++ /dev/null
@@ -1,3 +0,0 @@
-for chunk in source.file(io.stdin) do
-  io.write(chunk)
-end
diff --git a/gem/gem.c b/gem/gem.c
deleted file mode 100644
index 976f74d..0000000
--- a/gem/gem.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "lua.h"
-#include "lauxlib.h"
-
-#define CR '\xD'
-#define LF '\xA'
-#define CRLF "\xD\xA"
-
-#define candidate(c) (c == CR || c == LF)
-static int pushchar(int c, int last, const char *marker, 
-    luaL_Buffer *buffer) {
-  if (candidate(c)) {
-    if (candidate(last)) {
-      if (c == last) 
-        luaL_addstring(buffer, marker);
-      return 0;
-    } else {
-      luaL_addstring(buffer, marker);
-      return c;
-    }
-  } else {
-    luaL_putchar(buffer, c);
-    return 0;
-  }
-}
-
-static int eol(lua_State *L) {
-  int context = luaL_checkint(L, 1);
-  size_t isize = 0;
-  const char *input = luaL_optlstring(L, 2, NULL, &isize);
-  const char *last = input + isize;
-  const char *marker = luaL_optstring(L, 3, CRLF);
-  luaL_Buffer buffer;
-  luaL_buffinit(L, &buffer);
-  if (!input) {
-    lua_pushnil(L);
-    lua_pushnumber(L, 0);
-    return 2;
-  }
-  while (input < last)
-    context = pushchar(*input++, context, marker, &buffer);
-  luaL_pushresult(&buffer);
-  lua_pushnumber(L, context);
-  return 2;
-}
-
-static luaL_reg func[] = {
-    { "eol", eol },
-    { NULL, NULL }
-};
-
-int luaopen_gem(lua_State *L) {
-    luaL_openlib(L, "gem", func, 0);
-	return 0;
-}
diff --git a/gem/gt.b64 b/gem/gt.b64
deleted file mode 100644
index a74c0b3..0000000
--- a/gem/gt.b64
+++ /dev/null
@@ -1,206 +0,0 @@
-iVBORw0KGgoAAAANSUhEUgAAAIAAAACACAIAAABMXPacAAAtU0lEQVR42u19eXRURdb4rarXa5LO
-RshKEshC2MLOBIjsCoMLGJhRPnUEcUGZEX7j4Iw6zqd+zjkzzowL6gzKMOoBRHAAPyQKUZQlxLAk
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diff --git a/gem/ltn012.tex b/gem/ltn012.tex
deleted file mode 100644
index 8027ecc..0000000
--- a/gem/ltn012.tex
+++ /dev/null
@@ -1,695 +0,0 @@
-\documentclass[10pt]{article}
-\usepackage{fancyvrb}
-\usepackage{url}
-\DefineVerbatimEnvironment{lua}{Verbatim}{fontsize=\small,commandchars=\@\#\%}
-\DefineVerbatimEnvironment{C}{Verbatim}{fontsize=\small,commandchars=\@\#\%}
-\DefineVerbatimEnvironment{mime}{Verbatim}{fontsize=\small,commandchars=\$\#\%}
-\newcommand{\stick}[1]{\vbox{\setlength{\parskip}{0pt}#1}}
-\newcommand{\bl}{\ensuremath{\mathtt{\backslash}}}
-\newcommand{\CR}{\texttt{CR}}
-\newcommand{\LF}{\texttt{LF}}
-\newcommand{\CRLF}{\texttt{CR~LF}}
-\newcommand{\nil}{\texttt{nil}}
-
-\title{Filters, sources, sinks, and pumps\\
-      {\large or Functional programming for the rest of us}}
-\author{Diego Nehab}
-
-\begin{document}
-
-\maketitle
-
-\begin{abstract}
-Certain data processing operations can be implemented in the
-form of filters. A filter is a function that can process
-data received in consecutive invocations, returning partial
-results each time it is called.  Examples of operations that
-can be implemented as filters include the end-of-line
-normalization for text, Base64 and Quoted-Printable transfer
-content encodings, the breaking of text into lines, SMTP
-dot-stuffing, and there are many others.  Filters become
-even more powerful when we allow them to be chained together
-to create composite filters. In this context, filters can be
-seen as the internal links in a chain of data transformations.
-Sources and sinks are the corresponding end points in these
-chains. A source is a function that produces data, chunk by
-chunk, and a sink is a function that takes data, chunk by
-chunk. Finally, pumps are procedures that actively drive
-data from a source to a sink, and indirectly through all 
-intervening filters.  In this article, we describe the design of an
-elegant interface for filters, sources, sinks, chains, and
-pumps, and we illustrate each step with concrete examples. 
-\end{abstract}
-
-\section{Introduction}
-
-Within the realm of networking applications, we are often
-required to apply transformations to streams of data. Examples
-include the end-of-line normalization for text, Base64 and
-Quoted-Printable transfer content encodings, breaking text
-into lines with a maximum number of columns, SMTP
-dot-stuffing, \texttt{gzip} compression, HTTP chunked
-transfer coding, and the list goes on.
-
-Many complex tasks require a combination of two or more such
-transformations, and therefore a general mechanism for
-promoting reuse is desirable. In the process of designing
-\texttt{LuaSocket~2.0}, we repeatedly faced this problem.
-The solution we reached proved to be very general and
-convenient. It is based on the concepts of filters, sources,
-sinks, and pumps, which we introduce below. 
-
-\emph{Filters} are functions that can be repeatedly invoked
-with chunks of input, successively returning processed
-chunks of output. Naturally, the result of
-concatenating all the output chunks must be the same as the
-result of applying the filter to the concatenation of all
-input chunks. In fancier language, filters \emph{commute}
-with the concatenation operator. More importantly, filters
-must handle input data correctly no matter how the stream
-has been split into chunks. 
-
-A \emph{chain} is a function that transparently combines the
-effect of one or more filters. The interface of a chain is
-indistinguishable from the interface of its component
-filters.  This  allows a chained filter to be used wherever
-an atomic filter is accepted. In particular, chains can be
-themselves chained to create arbitrarily complex operations.
-
-Filters can be seen as internal nodes in a network through
-which data will flow, potentially being transformed many
-times along the way.  Chains connect these nodes together.
-The initial and final nodes of the network are
-\emph{sources} and \emph{sinks}, respectively.  Less
-abstractly, a source is a function that produces new chunks
-of data every time it is invoked.  Conversely, sinks are
-functions that give a final destination to the chunks of
-data they receive in sucessive calls.  Naturally, sources
-and sinks can also be chained with filters to produce
-filtered sources and sinks.
-
-Finally, filters, chains, sources, and sinks are all passive
-entities: they must be repeatedly invoked in order for
-anything to happen.  \emph{Pumps} provide the driving force
-that pushes data through the network, from a source to a
-sink, and indirectly through all intervening filters.
-
-In the following sections, we start with a simplified
-interface, which we later refine. The evolution we present
-is not contrived: it recreates the steps we ourselves
-followed as we consolidated our understanding of these
-concepts within our application domain. 
-
-\subsection{A simple example}
-
-The end-of-line normalization of text is a good
-example to motivate our initial filter interface. 
-Assume we are given text in an unknown end-of-line
-convention (including possibly mixed conventions) out of the
-commonly found Unix (\LF), Mac OS (\CR), and
-DOS (\CRLF) conventions. We would like to be able to 
-use the folowing code to normalize the end-of-line markers: 
-\begin{quote}
-\begin{lua}
-@stick#
-local CRLF = "\013\010"
-local input = source.chain(source.file(io.stdin), normalize(CRLF))
-local output = sink.file(io.stdout)
-pump.all(input, output)
-%
-\end{lua}
-\end{quote}
-
-This program should read data from the standard input stream
-and normalize the end-of-line markers to the canonic
-\CRLF\ marker, as defined by the MIME standard. 
-Finally, the normalized text should be sent to the standard output
-stream.  We use a \emph{file source} that produces data from
-standard input, and chain it with a filter that normalizes
-the data. The pump then repeatedly obtains data from the
-source, and passes it to the \emph{file sink}, which sends
-it to the standard output.
-
-In the code above, the \texttt{normalize} \emph{factory} is a
-function that creates our normalization filter, which 
-replaces any end-of-line marker with the canonic marker. 
-The initial filter interface is
-trivial: a filter function receives a chunk of input data,
-and returns a chunk of processed data.  When there are no
-more input data left, the caller notifies the filter by invoking
-it with a \nil\ chunk. The filter responds by returning
-the final chunk of processed data (which could of course be
-the empty string).
-
-Although the interface is extremely simple, the
-implementation is not so obvious. A normalization filter
-respecting this interface needs to keep some kind of context
-between calls. This is because a chunk boundary may lie between 
-the \CR\ and \LF\ characters marking the end of a single line. This
-need for contextual storage motivates the use of
-factories: each time the factory is invoked, it returns a
-filter with its own context so that we can have several
-independent filters being used at the same time.  For
-efficiency reasons, we must avoid the obvious solution of 
-concatenating all the input into the context before
-producing any output chunks. 
-
-To that end, we break the implementation into two parts:
-a low-level filter, and a factory of high-level filters. The
-low-level filter is implemented in C and does not maintain
-any context between function calls. The high-level filter
-factory, implemented in Lua, creates and returns a
-high-level filter that maintains whatever context the low-level
-filter needs, but isolates the user from its internal
-details. That way, we take advantage of C's efficiency to
-perform the hard work, and take advantage of Lua's
-simplicity for the bookkeeping.
-
-\subsection{The Lua part of the filter}
-
-Below is the complete implementation of the factory of high-level
-end-of-line normalization filters:
-\begin{quote}
-\begin{lua}
-@stick#
-function filter.cycle(lowlevel, context, extra)
-  return function(chunk)
-    local ret
-    ret, context = lowlevel(context, chunk, extra)
-    return ret
-  end
-end
-%
-
-@stick#
-function normalize(marker)
-  return filter.cycle(eol, 0, marker)
-end
-%
-\end{lua}
-\end{quote}
-
-The \texttt{normalize} factory simply calls a more generic
-factory, the \texttt{cycle}~factory, passing the low-level
-filter~\texttt{eol}. The \texttt{cycle}~factory receives a
-low-level filter, an initial context, and an extra
-parameter, and returns a new high-level filter.  Each time
-the high-level filer is passed a new chunk, it invokes the
-low-level filter with the previous context, the new chunk,
-and the extra argument.  It is the low-level filter that
-does all the work, producing the chunk of processed data and
-a new context. The high-level filter then replaces its
-internal context, and returns the processed chunk of data to
-the user.  Notice that we take advantage of Lua's lexical
-scoping to store the context in a closure between function
-calls.  
-
-\subsection{The C part of the filter}
-
-As for the low-level filter, we must first accept
-that there is no perfect solution to the end-of-line marker
-normalization problem. The difficulty comes from an
-inherent ambiguity in the definition of empty lines within
-mixed input. However, the following solution works well for
-any consistent input, as well as for non-empty lines in
-mixed input. It also does a reasonable job with empty lines
-and serves as a good example of how to implement a low-level
-filter.
-
-The idea is to consider both \CR\ and~\LF\ as end-of-line
-\emph{candidates}.  We issue a single break if any candidate
-is seen alone, or if it is followed by a different
-candidate.  In other words, \CR~\CR~and \LF~\LF\ each issue
-two end-of-line markers, whereas \CR~\LF~and \LF~\CR\ issue
-only one marker each.  It is easy to see that this method
-correctly handles the most common end-of-line conventions.
-
-With this in mind, we divide the low-level filter into two
-simple functions.  The inner function~\texttt{pushchar} performs the
-normalization itself. It takes each input character in turn,
-deciding what to output and how to modify the context. The
-context tells if the last processed character was an
-end-of-line candidate, and if so, which candidate it was.
-For efficiency, we use Lua's auxiliary library's buffer
-interface: 
-\begin{quote}
-\begin{C}
-@stick#
-@#define candidate(c) (c == CR || c == LF)
-static int pushchar(int c, int last, const char *marker, 
-    luaL_Buffer *buffer) {
-  if (candidate(c)) {
-    if (candidate(last)) {
-      if (c == last) 
-        luaL_addstring(buffer, marker);
-      return 0;
-    } else {
-      luaL_addstring(buffer, marker);
-      return c;
-    }
-  } else {
-    luaL_pushchar(buffer, c);
-    return 0;
-  }
-}
-%
-\end{C}
-\end{quote}
-
-The outer function~\texttt{eol} simply interfaces with Lua.
-It receives the context and input chunk (as well as an
-optional custom end-of-line marker), and returns the
-transformed output chunk and the new context.
-Notice that if the input chunk is \nil, the operation
-is considered to be finished. In that case, the loop will
-not execute a single time and the context is reset to the
-initial state.  This allows the filter to be reused many
-times: 
-\begin{quote}
-\begin{C}
-@stick#
-static int eol(lua_State *L) {
-  int context = luaL_checkint(L, 1);
-  size_t isize = 0;
-  const char *input = luaL_optlstring(L, 2, NULL, &isize);
-  const char *last = input + isize;
-  const char *marker = luaL_optstring(L, 3, CRLF);
-  luaL_Buffer buffer;
-  luaL_buffinit(L, &buffer);
-  if (!input) {
-    lua_pushnil(L);
-    lua_pushnumber(L, 0);
-    return 2;
-  }
-  while (input < last)
-    context = pushchar(*input++, context, marker, &buffer);
-  luaL_pushresult(&buffer);
-  lua_pushnumber(L, context);
-  return 2;
-}
-%
-\end{C}
-\end{quote}
-
-When designing filters, the challenging part is usually 
-deciding what to store in the context. For line breaking, for
-instance, it could be the number of bytes that still fit in the
-current line.  For Base64 encoding, it could be a string
-with the bytes that remain after the division of the input
-into 3-byte atoms. The MIME module in the \texttt{LuaSocket}
-distribution has many other examples. 
-
-\section{Filter chains}
-
-Chains greatly increase the power of filters.  For example,
-according to the standard for Quoted-Printable encoding,
-text should be normalized to a canonic end-of-line marker
-prior to encoding.  After encoding, the resulting text must
-be broken into lines of no more than 76 characters, with the
-use of soft line breaks (a line terminated by the \texttt{=}
-sign).  To help specifying complex transformations like
-this, we define a chain factory that creates a composite
-filter from one or more filters.  A chained filter passes
-data through all its components, and can be used wherever a
-primitive filter is accepted.
-
-The chaining factory is very simple. The auxiliary
-function~\texttt{chainpair} chains two filters together,
-taking special care if the chunk is the last.  This is
-because the final \nil\ chunk notification has to be
-pushed through both filters in turn:  
-\begin{quote}
-\begin{lua}
-@stick#
-local function chainpair(f1, f2)
-  return function(chunk)
-    local ret = f2(f1(chunk))
-    if chunk then return ret
-    else return ret .. f2() end
-  end
-end
-%
-
-@stick#
-function filter.chain(...)
-  local f = select(1, ...) 
-  for i = 2, select('@#', ...) do
-    f = chainpair(f, select(i, ...))
-  end
-  return f
-end
-%
-\end{lua}
-\end{quote}
-
-Thanks to the chain factory, we can
-define the Quoted-Printable conversion as such:
-\begin{quote}
-\begin{lua}
-@stick#
-local qp = filter.chain(normalize(CRLF), encode("quoted-printable"), 
-  wrap("quoted-printable"))
-local input = source.chain(source.file(io.stdin), qp)
-local output = sink.file(io.stdout)
-pump.all(input, output)
-%
-\end{lua}
-\end{quote}
-
-\section{Sources, sinks, and pumps}
-
-The filters we introduced so far act as the internal nodes
-in a network of transformations. Information flows from node
-to node (or rather from one filter to the next) and is
-transformed along the way. Chaining filters together is our
-way to connect nodes in this network. As the starting point
-for the network, we need a source node that produces the
-data. In the end of the network, we need a sink node that
-gives a final destination to the data.
-
-\subsection{Sources}
-
-A source returns the next chunk of data each time it is
-invoked. When there is no more data, it simply returns~\nil.  
-In the event of an error, the source can inform the
-caller by returning \nil\ followed by the error message.
-
-Below are two simple source factories. The \texttt{empty} source
-returns no data, possibly returning an associated error
-message. The \texttt{file} source yields the contents of a file 
-in a chunk by chunk fashion:
-\begin{quote}
-\begin{lua}
-@stick#
-function source.empty(err)
-  return function()
-    return nil, err
-  end
-end
-%
-
-@stick#
-function source.file(handle, io_err)
-  if handle then 
-    return function()
-      local chunk = handle:read(2048)
-      if not chunk then handle:close() end
-      return chunk
-    end
-  else return source.empty(io_err or "unable to open file") end
-end
-%
-\end{lua}
-\end{quote}
-
-\subsection{Filtered sources}
-
-A filtered source passes its data through the
-associated filter before returning it to the caller. 
-Filtered sources are useful when working with
-functions that get their input data from a source (such as
-the pumps in our examples). By chaining a source with one or
-more filters, such functions can be transparently provided
-with filtered data, with no need to change their interfaces. 
-Here is a factory that does the job:
-\begin{quote}
-\begin{lua}
-@stick#
-function source.chain(src, f)
-  return function()
-    if not src then 
-      return nil 
-    end
-    local chunk, err = src()
-    if not chunk then 
-      src = nil
-      return f(nil)
-    else 
-      return f(chunk) 
-    end
-  end
-end
-%
-\end{lua}
-\end{quote}
-
-\subsection{Sinks}
-
-Just as we defined an interface for a source of data, we can
-also define an interface for a data destination.  We call
-any function respecting this interface a sink. In our first
-example, we used a file sink connected to the standard
-output. 
-
-Sinks receive consecutive chunks of data, until the end of
-data is signaled by a \nil\ input chunk. A sink can be
-notified of an error with an optional extra argument that
-contains the error message, following a \nil\ chunk.  
-If a sink detects an error itself, and
-wishes not to be called again, it can return \nil,
-followed by an error message. A return value that
-is not \nil\ means the sink will accept more data.
-
-Below are two useful sink factories. 
-The table factory creates a sink that stores
-individual chunks into an array. The data can later be
-efficiently concatenated into a single string with Lua's
-\texttt{table.concat} library function. The \texttt{null} sink 
-simply discards the chunks it receives:
-\begin{quote}
-\begin{lua}
-@stick#
-function sink.table(t)
-  t = t or {}
-  local f = function(chunk, err)
-    if chunk then table.insert(t, chunk) end
-    return 1
-  end
-  return f, t
-end
-%
-
-@stick#
-local function null()
-  return 1
-end
-
-function sink.null()
-  return null
-end
-%
-\end{lua}
-\end{quote}
-
-Naturally, filtered sinks are just as useful as filtered
-sources. A filtered sink passes each chunk it receives
-through the associated filter before handing it down to the
-original sink.  In the following example, we use a source
-that reads from the standard input.  The input chunks are
-sent to a table sink, which has been coupled with a
-normalization filter.  The filtered chunks are then
-concatenated from the output array, and finally sent to
-standard out:
-\begin{quote}
-\begin{lua}
-@stick#
-local input = source.file(io.stdin)
-local output, t = sink.table()
-output = sink.chain(normalize(CRLF), output)
-pump.all(input, output)
-io.write(table.concat(t))
-%
-\end{lua}
-\end{quote}
-
-\subsection{Pumps}
-
-Although not on purpose, our interface for sources is
-compatible with Lua iterators. That is, a source can be
-neatly used in conjunction with \texttt{for} loops.  Using
-our file source as an iterator, we can write the following
-code:
-\begin{quote}
-\begin{lua}
-@stick#
-for chunk in source.file(io.stdin) do
-  io.write(chunk)
-end
-%
-\end{lua}
-\end{quote}
-
-Loops like this will always be present because everything 
-we designed so far is passive. Sources, sinks, filters: none
-of them can do anything on their own. The operation of
-pumping all data a source can provide into a sink is so
-common that it deserves its own function:
-\begin{quote}
-\begin{lua}
-@stick#
-function pump.step(src, snk)
-  local chunk, src_err = src()
-  local ret, snk_err = snk(chunk, src_err)
-  if chunk and ret then return 1
-  else return nil, src_err or snk_err end
-end
-%
-
-@stick#
-function pump.all(src, snk, step)
-    step = step or pump.step
-    while true do
-        local ret, err = step(src, snk)
-        if not ret then
-            if err then return nil, err
-            else return 1 end
-        end 
-    end
-end
-%
-\end{lua}
-\end{quote}
-
-The \texttt{pump.step} function moves one chunk of data from
-the source to the sink. The \texttt{pump.all} function takes
-an optional \texttt{step} function and uses it to pump all the
-data from the source to the sink. 
-Here is an example that uses the Base64 and the
-line wrapping filters from the \texttt{LuaSocket}
-distribution.  The program reads a binary file from
-disk and stores it in another file, after encoding it to the
-Base64 transfer content encoding:
-\begin{quote}
-\begin{lua}
-@stick#
-local input = source.chain(
-  source.file(io.open("input.bin", "rb")), 
-  encode("base64"))
-local output = sink.chain(
-  wrap(76),
-  sink.file(io.open("output.b64", "w")))
-pump.all(input, output)
-%
-\end{lua}
-\end{quote}
-
-The way we split the filters here is not intuitive, on
-purpose.  Alternatively, we could have chained the Base64
-encode filter and the line-wrap filter together, and then
-chain the resulting filter with either the file source or
-the file sink. It doesn't really matter. 
-
-\section{Exploding filters}
-
-Our current filter interface has one serious shortcoming.
-Consider for example a \texttt{gzip} decompression filter.
-During decompression, a small input chunk can be exploded
-into a huge amount of data. To address this problem, we
-decided to change the filter interface and allow exploding
-filters to return large quantities of output data in a chunk
-by chunk manner. 
-
-More specifically, after passing each chunk of input to
-a filter, and collecting the first chunk of output, the
-user must now loop to receive other chunks from the filter until no
-filtered data is left. Within these secondary calls, the
-caller passes an empty string to the filter. The filter
-responds with an empty string when it is ready for the next
-input chunk. In the end, after the user passes a
-\nil\ chunk notifying the filter that there is no
-more input data, the filter might still have to produce too
-much output data to return in a single chunk. The user has
-to loop again, now passing \nil\ to the filter each time,
-until the filter itself returns \nil\ to notify the
-user it is finally done.
-
-Fortunately, it is very easy to modify a filter to respect
-the new interface. In fact, the end-of-line translation
-filter we presented earlier already conforms to it.  The
-complexity is encapsulated within the chaining functions,
-which must now include a loop. Since these functions only
-have to be written once, the user is rarely affected.
-Interestingly, the modifications do not have a measurable
-negative impact in the performance of filters that do
-not need the added flexibility. On the other hand, for a
-small price in complexity, the changes make exploding
-filters practical.
-
-\section{A complex example}
-
-The LTN12 module in the \texttt{LuaSocket} distribution
-implements all the ideas we have described. The MIME
-and SMTP modules are tightly integrated with LTN12, 
-and can be used to showcase the expressive power of filters,
-sources, sinks, and pumps. Below is an example 
-of how a user would proceed to define and send a
-multipart message, with attachments, using \texttt{LuaSocket}:
-\begin{quote}
-\begin{mime}
-local smtp = require"socket.smtp"
-local mime = require"mime"
-local ltn12 = require"ltn12"
-
-local message = smtp.message{
-  headers = {
-    from = "Sicrano <sicrano@example.com>",
-    to = "Fulano <fulano@example.com>",
-    subject = "A message with an attachment"},
-  body = {
-    preamble = "Hope you can see the attachment" .. CRLF,
-    [1] = {
-      body = "Here is our logo" .. CRLF},
-    [2] = {
-      headers = {
-        ["content-type"] = 'image/png; name="luasocket.png"',
-        ["content-disposition"] = 
-          'attachment; filename="luasocket.png"',
-        ["content-description"] = 'LuaSocket logo',
-        ["content-transfer-encoding"] = "BASE64"},
-      body = ltn12.source.chain(
-        ltn12.source.file(io.open("luasocket.png", "rb")),
-        ltn12.filter.chain(
-          mime.encode("base64"),
-          mime.wrap()))}}}
-
-assert(smtp.send{
-  rcpt = "<fulano@example.com>",
-  from = "<sicrano@example.com>",
-  source = message})
-\end{mime}
-\end{quote}
-
-The \texttt{smtp.message} function receives a table
-describing the message, and returns a source. The
-\texttt{smtp.send} function takes this source, chains it with the
-SMTP dot-stuffing filter, connects a socket sink
-with the server, and simply pumps the data. The message is never 
-assembled in memory.  Everything is produced on demand, 
-transformed in small pieces, and sent to the server in chunks, 
-including the file attachment which is loaded from disk and 
-encoded on the fly. It just works.
-
-\section{Conclusions}
-
-In this article, we introduced the concepts of filters,
-sources, sinks, and pumps to the Lua language. These are
-useful tools for stream processing in general. Sources provide
-a simple abstraction for data acquisition. Sinks provide an
-abstraction for final data destinations. Filters define an
-interface for data transformations.  The chaining of
-filters, sources and sinks provides an elegant way to create
-arbitrarily complex data transformations from simpler
-components. Pumps simply push the data through.  
-
-\section{Acknowledgements}
-
-The concepts described in this text are the result of  long
-discussions with David Burgess. A version of this text has
-been released on-line as the Lua Technical Note 012, hence
-the name of the corresponding LuaSocket module, LTN12.  Wim
-Couwenberg contributed to the implementation of the module,
-and Adrian Sietsma was the first to notice the
-correspondence between sources and Lua iterators. 
-
-
-\end{document}
diff --git a/gem/luasocket.png b/gem/luasocket.png
deleted file mode 100644
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GIT binary patch
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diff --git a/gem/makefile b/gem/makefile
deleted file mode 100644
index a4287c2..0000000
--- a/gem/makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-ltn012.pdf: ltn012.ps
-	./myps2pdf ltn012.ps
-
-ltn012.ps: ltn012.dvi
-	dvips -G0 -t letter -o ltn012.ps ltn012.dvi
-
-ltn012.dvi: ltn012.tex
-	latex ltn012
-
-clean:
-	rm -f *~ *.log *.aux *.bbl *.blg ltn012.pdf ltn012.ps ltn012.dvi ltn012.lof ltn012.toc ltn012.lot
-
-pdf: ltn012.pdf
-	open ltn012.pdf
diff --git a/gem/myps2pdf b/gem/myps2pdf
deleted file mode 100755
index 78c23e5..0000000
--- a/gem/myps2pdf
+++ /dev/null
@@ -1,113 +0,0 @@
-#!/bin/sh -
-do_opt=1
-best=0
-rot=0
-a4=0
-eps=0
-usage="Usage: $0 [-no_opt] [-best] [-rot] [-a4] [-eps] in.ps [out.pdf]"
-
-case "x$1" in
-"x-no_opt") do_opt=0 ; shift ;;
-esac
-
-case "x$1" in
-"x-best") best=1 ; shift ;;
-esac
-
-case "x$1" in
-"x-rot") rot=1 ; shift ;;
-esac
-
-case "x$1" in
-"x-a4") a4=1 ; shift ;;
-esac
-
-case "x$1" in
-"x-eps") eps=1 ; shift ;;
-esac
-
-case $# in
-2) ifilename=$1 ; ofilename=$2 ;;
-1) ifilename=$1
-   if `echo $1 | grep -i '\.e*ps$' > /dev/null`
-   then
-      ofilename=`echo $1 | sed 's/\..*$/.pdf/'`
-   else
-      echo "$usage" 1>&2
-      exit 1
-   fi ;;
-*) echo "$usage" 1>&2 ; exit 1 ;;
-esac
-
-if [ $best == 1 ]
-then
-	options="-dPDFSETTINGS=/prepress \
-	-r1200 \
-	-dMonoImageResolution=1200 \
-	-dGrayImageResolution=1200 \
-	-dColorImageResolution=1200 \
-	-dDownsampleMonoImages=false \
-	-dDownsampleGrayImages=false \
-	-dDownsampleColorImages=false \
-	-dAutoFilterMonoImages=false \
-	-dAutoFilterGrayImages=false \
-	-dAutoFilterColorImages=false \
-	-dMonoImageFilter=/FlateEncode \
-	-dGrayImageFilter=/FlateEncode \
-	-dColorImageFilter=/FlateEncode"
-else
-	options="-dPDFSETTINGS=/prepress \
-	-r600 \
-	-dDownsampleMonoImages=true \
-	-dDownsampleGrayImages=true \
-	-dDownsampleColorImages=true \
-	-dMonoImageDownsampleThreshold=2.0 \
-	-dGrayImageDownsampleThreshold=1.5 \
-	-dColorImageDownsampleThreshold=1.5 \
-	-dMonoImageResolution=600 \
-	-dGrayImageResolution=600 \
-	-dColorImageResolution=600 \
-	-dAutoFilterMonoImages=false \
-	-dMonoImageFilter=/FlateEncode \
-	-dAutoFilterGrayImages=true \
-	-dAutoFilterColorImages=true"
-fi
-
-if [ $rot == 1 ]
-then
-	options="$options -dAutoRotatePages=/PageByPage"
-fi
-
-if [ $eps == 1 ]
-then
-	options="$options -dEPSCrop"
-fi
-
-set -x
-
-if [ $a4 == 1 ]
-then
-	# Resize from A4 to letter size
-	psresize -Pa4 -pletter "$ifilename" myps2pdf.temp.ps
-	ifilename=myps2pdf.temp.ps
-fi
-
-gs -q -dSAFER -dNOPAUSE -dBATCH  \
-	-sDEVICE=pdfwrite -sPAPERSIZE=letter -sOutputFile=myps2pdf.temp.pdf \
-	-dCompatibilityLevel=1.3 \
-	$options \
-	-dMaxSubsetPct=100 \
-	-dSubsetFonts=true \
-	-dEmbedAllFonts=true \
-	-dColorConversionStrategy=/LeaveColorUnchanged \
-	-dDoThumbnails=true \
-	-dPreserveEPSInfo=true \
-	-c .setpdfwrite -f "$ifilename"
-
-if [ $do_opt == 1 ]
-then
-	pdfopt myps2pdf.temp.pdf $ofilename
-else
-	mv myps2pdf.temp.pdf $ofilename
-fi
-rm -f myps2pdf.temp.pdf myps2pdf.temp.ps
diff --git a/gem/t1.lua b/gem/t1.lua
deleted file mode 100644
index 0c054c9..0000000
--- a/gem/t1.lua
+++ /dev/null
@@ -1,25 +0,0 @@
-source = {}
-sink = {}
-pump = {}
-filter = {}
-
--- source.chain
-dofile("ex6.lua")
-
--- source.file
-dofile("ex5.lua")
-
--- normalize
-require"gem"
-eol = gem.eol
-dofile("ex2.lua")
-
--- sink.file
-require"ltn12"
-sink.file = ltn12.sink.file
-
--- pump.all
-dofile("ex10.lua")
-
--- run test
-dofile("ex1.lua")
diff --git a/gem/t1lf.txt b/gem/t1lf.txt
deleted file mode 100644
index 8cddd1b..0000000
--- a/gem/t1lf.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-this is a test file
-it should have been saved as lf eol
-but t1.lua will convert it to crlf eol
-otherwise it is broken!
-
diff --git a/gem/t2.lua b/gem/t2.lua
deleted file mode 100644
index a81ed73..0000000
--- a/gem/t2.lua
+++ /dev/null
@@ -1,36 +0,0 @@
-source = {}
-sink = {}
-pump = {}
-filter = {}
-
--- filter.chain
-dofile("ex3.lua")
-
--- normalize
-require"gem"
-eol = gem.eol
-dofile("ex2.lua")
-
--- encode
-require"mime"
-encode = mime.encode
-
--- wrap
-wrap = mime.wrap
-
--- source.chain
-dofile("ex6.lua")
-
--- source.file
-dofile("ex5.lua")
-
--- sink.file
-require"ltn12"
-sink.file = ltn12.sink.file
-
--- pump.all
-dofile("ex10.lua")
-
--- run test
-CRLF = "\013\010"
-dofile("ex4.lua")
diff --git a/gem/t2.txt b/gem/t2.txt
deleted file mode 100644
index f484fe8..0000000
--- a/gem/t2.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-esse é um texto com acentos
-quoted-printable tem que quebrar linhas longas, com mais que 76 linhas de texto
-fora que as quebras de linhas têm que ser normalizadas
-vamos ver o que dá isso aqui
diff --git a/gem/t2gt.qp b/gem/t2gt.qp
deleted file mode 100644
index 355a845..0000000
--- a/gem/t2gt.qp
+++ /dev/null
@@ -1,5 +0,0 @@
-esse =E9 um texto com acentos
-quoted-printable tem que quebrar linhas longas, com mais que 76 linhas de t=
-exto
-fora que as quebras de linhas t=EAm que ser normalizadas
-vamos ver o que d=E1 isso aqui
diff --git a/gem/t3.lua b/gem/t3.lua
deleted file mode 100644
index 4bb98ba..0000000
--- a/gem/t3.lua
+++ /dev/null
@@ -1,25 +0,0 @@
-source = {}
-sink = {}
-pump = {}
-filter = {}
-
--- source.file
-dofile("ex5.lua")
-
--- sink.table
-dofile("ex7.lua")
-
--- sink.chain
-require"ltn12"
-sink.chain = ltn12.sink.chain
-
--- normalize
-require"gem"
-eol = gem.eol
-dofile("ex2.lua")
-
--- pump.all
-dofile("ex10.lua")
-
--- run test
-dofile("ex8.lua")
diff --git a/gem/t4.lua b/gem/t4.lua
deleted file mode 100644
index 8b8071c..0000000
--- a/gem/t4.lua
+++ /dev/null
@@ -1,10 +0,0 @@
-source = {}
-sink = {}
-pump = {}
-filter = {}
-
--- source.file
-dofile("ex5.lua")
-
--- run test
-dofile("ex9.lua")
diff --git a/gem/t5.lua b/gem/t5.lua
deleted file mode 100644
index 7c569ea..0000000
--- a/gem/t5.lua
+++ /dev/null
@@ -1,30 +0,0 @@
-source = {}
-sink = {}
-pump = {}
-filter = {}
-
--- source.chain
-dofile("ex6.lua")
-
--- source.file
-dofile("ex5.lua")
-
--- encode
-require"mime"
-encode = mime.encode
-
--- sink.chain
-require"ltn12"
-sink.chain = ltn12.sink.chain
-
--- wrap
-wrap = mime.wrap
-
--- sink.file
-sink.file = ltn12.sink.file
-
--- pump.all
-dofile("ex10.lua")
-
--- run test
-dofile("ex11.lua")
diff --git a/gem/test.lua b/gem/test.lua
deleted file mode 100644
index a937b9a..0000000
--- a/gem/test.lua
+++ /dev/null
@@ -1,46 +0,0 @@
-function readfile(n)
-    local f = io.open(n, "rb")
-    local s = f:read("*a")
-    f:close()
-    return s
-end
-
-lf = readfile("t1lf.txt")
-os.remove("t1crlf.txt")
-os.execute("lua t1.lua < t1lf.txt > t1crlf.txt")
-crlf = readfile("t1crlf.txt")
-assert(crlf == string.gsub(lf, "\010", "\013\010"), "broken")
-
-gt = readfile("t2gt.qp")
-os.remove("t2.qp")
-os.execute("lua t2.lua < t2.txt > t2.qp")
-t2 = readfile("t2.qp")
-assert(gt == t2, "broken")
-
-os.remove("t1crlf.txt")
-os.execute("lua t3.lua < t1lf.txt > t1crlf.txt")
-crlf = readfile("t1crlf.txt")
-assert(crlf == string.gsub(lf, "\010", "\013\010"), "broken")
-
-t = readfile("test.lua")
-os.execute("lua t4.lua < test.lua > t")
-t2 = readfile("t")
-assert(t == t2, "broken")
-
-os.remove("output.b64")
-gt = readfile("gt.b64")
-os.execute("lua t5.lua")
-t5 = readfile("output.b64")
-assert(gt == t5, "failed")
-
-print("1 2 5 6 10 passed")
-print("2 3 4 5 6 10 passed")
-print("2 5 6 7 8 10 passed")
-print("5 9 passed")
-print("5 6 10 11 passed")
-
-os.remove("t")
-os.remove("t2.qp")
-os.remove("t1crlf.txt")
-os.remove("t11.b64")
-os.remove("output.b64")

From 86de838eb5ed49711be8d62e01255cc2ccd3342e Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 16:05:11 +0100
Subject: [PATCH 40/62] cleanup; move ./etc into ./samples and mark
 'unsupported'

---
 .luacheckrc                       |  2 -
 etc/README                        | 89 ------------------------------
 luasocket-scm-3.rockspec          |  1 -
 makefile.dist                     | 28 ++++------
 samples/README                    | 90 +++++++++++++++++++++++++++++--
 {etc => samples}/b64.lua          |  0
 {etc => samples}/check-links.lua  |  0
 {etc => samples}/check-memory.lua |  0
 {etc => samples}/cookie.lua       |  0
 {etc => samples}/dict.lua         |  0
 {etc => samples}/dispatch.lua     |  0
 {etc => samples}/eol.lua          |  0
 {etc => samples}/forward.lua      |  0
 {etc => samples}/get.lua          |  0
 {etc => samples}/links            |  0
 {etc => samples}/lp.lua           |  0
 {etc => samples}/qp.lua           |  0
 {etc => samples}/tftp.lua         |  0
 18 files changed, 98 insertions(+), 112 deletions(-)
 delete mode 100644 etc/README
 rename {etc => samples}/b64.lua (100%)
 rename {etc => samples}/check-links.lua (100%)
 rename {etc => samples}/check-memory.lua (100%)
 rename {etc => samples}/cookie.lua (100%)
 rename {etc => samples}/dict.lua (100%)
 rename {etc => samples}/dispatch.lua (100%)
 rename {etc => samples}/eol.lua (100%)
 rename {etc => samples}/forward.lua (100%)
 rename {etc => samples}/get.lua (100%)
 rename {etc => samples}/links (100%)
 rename {etc => samples}/lp.lua (100%)
 rename {etc => samples}/qp.lua (100%)
 rename {etc => samples}/tftp.lua (100%)

diff --git a/.luacheckrc b/.luacheckrc
index 8b25dd7..a3b4f63 100644
--- a/.luacheckrc
+++ b/.luacheckrc
@@ -15,8 +15,6 @@ include_files = {
 }
 
 exclude_files = {
-    "etc/*.lua",
-    "etc/**/*.lua",
     "test/*.lua",
     "test/**/*.lua",
     "samples/*.lua",
diff --git a/etc/README b/etc/README
deleted file mode 100644
index cfd3e37..0000000
--- a/etc/README
+++ /dev/null
@@ -1,89 +0,0 @@
-This directory contains code that is more useful than the
-samples. This code *is* supported.
-
-    tftp.lua                -- Trivial FTP client
-
-This module implements file retrieval by the TFTP protocol.
-Its main use was to test the UDP code, but since someone
-found it usefull, I turned it into a module that is almost
-official (no uploads, yet).
-
-    dict.lua                -- Dict client
-
-The dict.lua  module started with  a cool  simple client
-for the  DICT protocol, written by Luiz Henrique Figueiredo.
-This new version has been converted into a library, similar
-to the HTTP  and FTP libraries, that can be used from within
-any luasocket application. Take  a look on the  source code
-and you will be able to figure out how to use it.
-
-    lp.lua                  -- LPD client library
-
-The lp.lua module implements the client part of the Line
-Printer Daemon protocol, used to print files on Unix
-machines. It is courtesy of David Burgess!  See the source
-code and the lpr.lua in the examples directory.
-
-    b64.lua
-    qp.lua
-    eol.lua
-
-These are tiny programs that perform Base64,
-Quoted-Printable and end-of-line marker conversions.
-
-    get.lua                 -- file retriever
-
-This little  program is  a client  that uses  the FTP  and
-HTTP  code to implement a  command line  file graber. Just
-run 
-
-	lua get.lua <remote-file> [<local-file>]
-
-to download  a remote file (either  ftp:// or http://) to
-the specified local file.  The program  also prints  the
-download  throughput, elapsed time, bytes already downloaded
-etc during download.
-
-    check-memory.lua        -- checks memory consumption
-
-This is just to see how much memory each module uses.
-
-    dispatch.lua            -- coroutine based dispatcher
-
-This is a first try at a coroutine based non-blocking
-dispatcher for LuaSocket. Take a look at 'check-links.lua'
-and at 'forward.lua' to see how to use it.
-
-	check-links.lua			-- HTML link checker program
-
-This little program scans a HTML file and checks for broken
-links. It is similar to check-links.pl by Jamie Zawinski,
-but uses all facilities of the LuaSocket library and the Lua
-language. It has not been thoroughly tested, but it should
-work. Just run
-
-	lua check-links.lua [-n] {<url>} > output
-
-and open the result to see a list of broken links. Make sure
-you check the '-n' switch. It runs in non-blocking mode,
-using coroutines, and is MUCH faster!
-
-    forward.lua             -- coroutine based forward server
-
-This is a forward server that can accept several connections
-and transfers simultaneously using non-blocking I/O and the
-coroutine-based dispatcher. You can run, for example
-
-    lua forward.lua 8080:proxy.com:3128 
-
-to redirect all local conections to port 8080 to the host 
-'proxy.com' at port 3128.
-
-    unix.c and unix.h
-
-This is an implementation of Unix local domain sockets and
-demonstrates how to extend LuaSocket with a new type of
-transport. It has been tested on Linux and on Mac OS X.
-
-Good luck,
-Diego.
diff --git a/luasocket-scm-3.rockspec b/luasocket-scm-3.rockspec
index 71f335c..f3d24e3 100644
--- a/luasocket-scm-3.rockspec
+++ b/luasocket-scm-3.rockspec
@@ -129,6 +129,5 @@ build = {
   copy_directories = {
     "docs"
     , "samples"
-    , "etc"
     , "test" }
 }
diff --git a/makefile.dist b/makefile.dist
index a27ba57..5ef44d3 100644
--- a/makefile.dist
+++ b/makefile.dist
@@ -22,20 +22,17 @@ SAMPLES = \
 	samples/lpr.lua \
 	samples/talker.lua \
 	samples/tinyirc.lua
-
-ETC = \
-	etc/README \
-	etc/b64.lua \
-	etc/check-links.lua \
-	etc/check-memory.lua \
-	etc/dict.lua \
-	etc/dispatch.lua \
-	etc/eol.lua \
-	etc/forward.lua \
-	etc/get.lua \
-	etc/lp.lua \
-	etc/qp.lua \
-	etc/tftp.lua
+	samples/b64.lua \
+	samples/check-links.lua \
+	samples/check-memory.lua \
+	samples/dict.lua \
+	samples/dispatch.lua \
+	samples/eol.lua \
+	samples/forward.lua \
+	samples/get.lua \
+	samples/lp.lua \
+	samples/qp.lua \
+	samples/tftp.lua
 
 SRC = \
 	src/makefile \
@@ -117,9 +114,6 @@ dist:
 	cp -vf README.md $(DIST)
 	cp -vf $(MAKE) $(DIST)
 
-	mkdir -p $(DIST)/etc
-	cp -vf $(ETC) $(DIST)/etc
-
 	mkdir -p $(DIST)/src
 	cp -vf $(SRC) $(DIST)/src
 
diff --git a/samples/README b/samples/README
index e63a6f5..4ee06b6 100644
--- a/samples/README
+++ b/samples/README
@@ -1,11 +1,95 @@
 This directory contains some sample programs using
 LuaSocket. This code is not supported.
 
+    tftp.lua                -- Trivial FTP client
+
+This module implements file retrieval by the TFTP protocol.
+Its main use was to test the UDP code, but since someone
+found it usefull, I turned it into a module that is almost
+official (no uploads, yet).
+
+    dict.lua                -- Dict client
+
+The dict.lua  module started with  a cool  simple client
+for the  DICT protocol, written by Luiz Henrique Figueiredo.
+This new version has been converted into a library, similar
+to the HTTP  and FTP libraries, that can be used from within
+any luasocket application. Take  a look on the  source code
+and you will be able to figure out how to use it.
+
+    lp.lua                  -- LPD client library
+
+The lp.lua module implements the client part of the Line
+Printer Daemon protocol, used to print files on Unix
+machines. It is courtesy of David Burgess!  See the source
+code and the lpr.lua in the examples directory.
+
+    b64.lua
+    qp.lua
+    eol.lua
+
+These are tiny programs that perform Base64,
+Quoted-Printable and end-of-line marker conversions.
+
+    get.lua                 -- file retriever
+
+This little  program is  a client  that uses  the FTP  and
+HTTP  code to implement a  command line  file graber. Just
+run
+
+	lua get.lua <remote-file> [<local-file>]
+
+to download  a remote file (either  ftp:// or http://) to
+the specified local file.  The program  also prints  the
+download  throughput, elapsed time, bytes already downloaded
+etc during download.
+
+    check-memory.lua        -- checks memory consumption
+
+This is just to see how much memory each module uses.
+
+    dispatch.lua            -- coroutine based dispatcher
+
+This is a first try at a coroutine based non-blocking
+dispatcher for LuaSocket. Take a look at 'check-links.lua'
+and at 'forward.lua' to see how to use it.
+
+	check-links.lua			-- HTML link checker program
+
+This little program scans a HTML file and checks for broken
+links. It is similar to check-links.pl by Jamie Zawinski,
+but uses all facilities of the LuaSocket library and the Lua
+language. It has not been thoroughly tested, but it should
+work. Just run
+
+	lua check-links.lua [-n] {<url>} > output
+
+and open the result to see a list of broken links. Make sure
+you check the '-n' switch. It runs in non-blocking mode,
+using coroutines, and is MUCH faster!
+
+    forward.lua             -- coroutine based forward server
+
+This is a forward server that can accept several connections
+and transfers simultaneously using non-blocking I/O and the
+coroutine-based dispatcher. You can run, for example
+
+    lua forward.lua 8080:proxy.com:3128
+
+to redirect all local conections to port 8080 to the host
+'proxy.com' at port 3128.
+
+    unix.c and unix.h
+
+This is an implementation of Unix local domain sockets and
+demonstrates how to extend LuaSocket with a new type of
+transport. It has been tested on Linux and on Mac OS X.
+
     listener.lua            -- socket to stdout
     talker.lua              -- stdin to socket
 
 listener.lua and talker.lua are about  the simplest
-applications you can write  using  LuaSocket.  Run   
+applications you can write  using  LuaSocket.  Run
 
 	'lua listener.lua'  and  'lua talker.lua'
 
@@ -17,13 +101,13 @@ be printed by listen.lua.
 This is a cool program written by David Burgess to print
 files using the Line Printer Daemon protocol, widely used in
 Unix machines.  It uses the lp.lua implementation, in the
-etc directory.  Just run 'lua lpr.lua <filename>
+samples directory.  Just run 'lua lpr.lua <filename>
 queue=<printername>' and the file will print!
 
     cddb.lua                -- CDDB client
 
 This is the first try on a simple CDDB client. Not really
-useful, but one day it might become a module. 
+useful, but one day it might become a module.
 
     daytimeclnt.lua         -- day time client
 
diff --git a/etc/b64.lua b/samples/b64.lua
similarity index 100%
rename from etc/b64.lua
rename to samples/b64.lua
diff --git a/etc/check-links.lua b/samples/check-links.lua
similarity index 100%
rename from etc/check-links.lua
rename to samples/check-links.lua
diff --git a/etc/check-memory.lua b/samples/check-memory.lua
similarity index 100%
rename from etc/check-memory.lua
rename to samples/check-memory.lua
diff --git a/etc/cookie.lua b/samples/cookie.lua
similarity index 100%
rename from etc/cookie.lua
rename to samples/cookie.lua
diff --git a/etc/dict.lua b/samples/dict.lua
similarity index 100%
rename from etc/dict.lua
rename to samples/dict.lua
diff --git a/etc/dispatch.lua b/samples/dispatch.lua
similarity index 100%
rename from etc/dispatch.lua
rename to samples/dispatch.lua
diff --git a/etc/eol.lua b/samples/eol.lua
similarity index 100%
rename from etc/eol.lua
rename to samples/eol.lua
diff --git a/etc/forward.lua b/samples/forward.lua
similarity index 100%
rename from etc/forward.lua
rename to samples/forward.lua
diff --git a/etc/get.lua b/samples/get.lua
similarity index 100%
rename from etc/get.lua
rename to samples/get.lua
diff --git a/etc/links b/samples/links
similarity index 100%
rename from etc/links
rename to samples/links
diff --git a/etc/lp.lua b/samples/lp.lua
similarity index 100%
rename from etc/lp.lua
rename to samples/lp.lua
diff --git a/etc/qp.lua b/samples/qp.lua
similarity index 100%
rename from etc/qp.lua
rename to samples/qp.lua
diff --git a/etc/tftp.lua b/samples/tftp.lua
similarity index 100%
rename from etc/tftp.lua
rename to samples/tftp.lua

From 3adf252b45401b4b97e63668c6ee530e7b3936ad Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Wed, 23 Mar 2022 16:15:52 +0100
Subject: [PATCH 41/62] cleanup; move FIX, TODO, WISH into TODO.md

---
 FIX     |  28 ------------
 TODO    |  81 ----------------------------------
 TODO.md | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 WISH    |  22 ---------
 4 files changed, 135 insertions(+), 131 deletions(-)
 delete mode 100644 FIX
 delete mode 100644 TODO
 create mode 100644 TODO.md
 delete mode 100644 WISH

diff --git a/FIX b/FIX
deleted file mode 100644
index 40f30a1..0000000
--- a/FIX
+++ /dev/null
@@ -1,28 +0,0 @@
-
-
-
-
-
-
-http was preserving old host header during redirects
-fix smtp.send hang on source error
-add create field to FTP and SMTP and fix HTTP ugliness
-clean timeout argument to open functions in SMTP, HTTP and FTP
-eliminate globals from namespaces created by module().
-url.absolute was not working when base_url was already parsed
-http.request was redirecting even when the location header was empty
-tcp{client}:shutdown() was checking for group instead of class.
-tcp{client}:send() now returns i+sent-1...
-get rid of a = socket.try() in the manual, except for protected cases. replace it with assert.
-get rid of "base." kludge in package.loaded
-check all "require("http")" etc in the manual.
-make sure sock_gethostname.*  only return success if the hp is not null!
-change 'l' prefix in C libraries to 'c' to avoid clash with LHF libraries
-    don't forget the declarations in luasocket.h and mime.h!!!
-setpeername was using udp{unconnected}
-fixed a bug in http.lua that caused some requests to fail (Florian Berger)
-fixed a bug in select.c that prevented sockets with descriptor 0 from working (Renato Maia)
-fixed a "bug" that caused dns.toip to crash under uLinux
-fixed a "bug" that caused a crash in gethostbyname under VMS
-DEBUG and VERSION became _DEBUG and _VERSION
-send returns the right value if input is "". Alexander Marinov
diff --git a/TODO b/TODO
deleted file mode 100644
index a838fc0..0000000
--- a/TODO
+++ /dev/null
@@ -1,81 +0,0 @@
-- bizarre default values for getnameinfo should throw error instead!
-
-> It's just too bad it can't talk to gmail -
-> reason 1: they absolutely want TLS
-> reason 2: unlike all the other SMTP implementations, they
-> don't
-> tolerate missing < > around adresses
-
-- document the new bind and connect behavior.
-- shouldn't we instead make the code compatible to Lua 5.2
-  without any compat stuff, and use a compatibility layer to
-  make it work on 5.1?
-- add what's new to manual
-- should there be an equivalent to tohostname for IPv6?
-- should we add service name resolution as well to getaddrinfo?
-- Maybe the sockaddr to presentation conversion should be done with getnameinfo()? 
-
-- add http POST sample to manual
-  people keep asking stupid questions
-- documentation of dirty/getfd/setfd is problematic because of portability
-  same for unix and serial.
-  what to do about this? add a stronger disclaimer?
-- fix makefile with decent defaults?
-
-Done:
-
-- added IPv6 support to getsockname
-- simplified getpeername implementation 
-- added family to return of getsockname and getpeername
-  and added modification to the manual to describe
-
-- connect and bind try all adresses returned by getaddrinfo
-- document headers.lua?
-- update copyright date everywhere? 
-- remove RCSID from files?
-- move version to 2.1 rather than 2.1.1?
-- fixed url package to support ipv6 hosts 
-- changed domain to family
-- implement getfamily methods.
-
-- remove references to Lua 5.0 from documentation, add 5.2?
-- update lua and luasocket version in samples in documentation
-- document ipv5_v6only default option being set?
-- document tcp6 and udp6
-- document dns.getaddrinfo 
-- documented zero-sized datagram change?
-  no.
-- document unix socket and serial socket? add raw support?
-  no.
-- document getoption
-- merge luaL_typeerror into auxiliar to avoid using luaL prefix? 
-
-
-
-
-
-
-
-
-
-
-replace \r\n with \0xD\0xA in everything
-New mime support
-
-ftp send should return server replies?
-make sure there are no object files in the distribution tarball
-http handling of 100-continue, see DB patch
-DB ftp.lua bug.
-test unix.c to return just a function and works with require"unix"
-get rid of setmetatable(, nil) since packages don't need this anymore in 5.1
-compat-5.1 novo
-ajeitar pra lua-5.1
-
-adicionar exemplos de expansão: pipe, local, named pipe
-testar os options!
-
-
-- Thread-unsafe functions to protect
-    gethostbyname(), gethostbyaddr(), gethostent(),
-inet_ntoa(), strerror(), 
-    
diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..d265694
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,135 @@
+## FIX
+
+http was preserving old host header during redirects
+fix smtp.send hang on source error
+add create field to FTP and SMTP and fix HTTP ugliness
+clean timeout argument to open functions in SMTP, HTTP and FTP
+eliminate globals from namespaces created by module().
+url.absolute was not working when base_url was already parsed
+http.request was redirecting even when the location header was empty
+tcp{client}:shutdown() was checking for group instead of class.
+tcp{client}:send() now returns i+sent-1...
+get rid of a = socket.try() in the manual, except for protected cases. replace it with assert.
+get rid of "base." kludge in package.loaded
+check all "require("http")" etc in the manual.
+make sure sock_gethostname.*  only return success if the hp is not null!
+change 'l' prefix in C libraries to 'c' to avoid clash with LHF libraries
+    don't forget the declarations in luasocket.h and mime.h!!!
+setpeername was using udp{unconnected}
+fixed a bug in http.lua that caused some requests to fail (Florian Berger)
+fixed a bug in select.c that prevented sockets with descriptor 0 from working (Renato Maia)
+fixed a "bug" that caused dns.toip to crash under uLinux
+fixed a "bug" that caused a crash in gethostbyname under VMS
+DEBUG and VERSION became _DEBUG and _VERSION
+send returns the right value if input is "". Alexander Marinov
+
+
+## WISH
+
+... as an l-value to get all results of a function call?
+at least ...[i] and #...
+extend to full tuples?
+
+__and __or __not metamethods
+
+lua_tostring, lua_tonumber, lua_touseradta etc push values in stack
+__tostring,__tonumber, __touserdata metamethods are checked
+and expected to push an object of correct type on stack
+
+lua_rawtostring, lua_rawtonumber, lua_rawtouserdata don't
+push anything on stack, return data of appropriate type,
+skip metamethods and throw error if object not of exact type
+
+package.findfile exported
+module not polluting the global namespace
+
+coxpcall with a coroutine pool for efficiency (reusing coroutines)
+
+exception mechanism formalized? just like the package system was.
+
+a nice bitlib in the core
+
+
+## TODO
+
+- bizarre default values for getnameinfo should throw error instead!
+
+> It's just too bad it can't talk to gmail -
+> reason 1: they absolutely want TLS
+> reason 2: unlike all the other SMTP implementations, they
+> don't
+> tolerate missing < > around adresses
+
+- document the new bind and connect behavior.
+- shouldn't we instead make the code compatible to Lua 5.2
+  without any compat stuff, and use a compatibility layer to
+  make it work on 5.1?
+- add what's new to manual
+- should there be an equivalent to tohostname for IPv6?
+- should we add service name resolution as well to getaddrinfo?
+- Maybe the sockaddr to presentation conversion should be done with getnameinfo()?
+
+- add http POST sample to manual
+  people keep asking stupid questions
+- documentation of dirty/getfd/setfd is problematic because of portability
+  same for unix and serial.
+  what to do about this? add a stronger disclaimer?
+- fix makefile with decent defaults?
+
+## Done:
+
+- added IPv6 support to getsockname
+- simplified getpeername implementation
+- added family to return of getsockname and getpeername
+  and added modification to the manual to describe
+
+- connect and bind try all adresses returned by getaddrinfo
+- document headers.lua?
+- update copyright date everywhere?
+- remove RCSID from files?
+- move version to 2.1 rather than 2.1.1?
+- fixed url package to support ipv6 hosts
+- changed domain to family
+- implement getfamily methods.
+
+- remove references to Lua 5.0 from documentation, add 5.2?
+- update lua and luasocket version in samples in documentation
+- document ipv5_v6only default option being set?
+- document tcp6 and udp6
+- document dns.getaddrinfo
+- documented zero-sized datagram change?
+  no.
+- document unix socket and serial socket? add raw support?
+  no.
+- document getoption
+- merge luaL_typeerror into auxiliar to avoid using luaL prefix?
+
+
+
+
+
+
+
+
+
+
+replace \r\n with \0xD\0xA in everything
+New mime support
+
+ftp send should return server replies?
+make sure there are no object files in the distribution tarball
+http handling of 100-continue, see DB patch
+DB ftp.lua bug.
+test unix.c to return just a function and works with require"unix"
+get rid of setmetatable(, nil) since packages don't need this anymore in 5.1
+compat-5.1 novo
+ajeitar pra lua-5.1
+
+adicionar exemplos de expans�o: pipe, local, named pipe
+testar os options!
+
+
+- Thread-unsafe functions to protect
+    gethostbyname(), gethostbyaddr(), gethostent(),
+inet_ntoa(), strerror(),
+
diff --git a/WISH b/WISH
deleted file mode 100644
index e7e9c07..0000000
--- a/WISH
+++ /dev/null
@@ -1,22 +0,0 @@
-... as an l-value to get all results of a function call?
-at least ...[i] and #...
-extend to full tuples?
-
-__and __or __not metamethods
-
-lua_tostring, lua_tonumber, lua_touseradta etc push values in stack
-__tostring,__tonumber, __touserdata metamethods are checked
-and expected to push an object of correct type on stack
-
-lua_rawtostring, lua_rawtonumber, lua_rawtouserdata don't
-push anything on stack, return data of appropriate type, 
-skip metamethods and throw error if object not of exact type
-
-package.findfile exported
-module not polluting the global namespace
-
-coxpcall with a coroutine pool for efficiency (reusing coroutines)
-
-exception mechanism formalized? just like the package system was.
-
-a nice bitlib in the core

From db2f1c9598c63a721fad4b8ae0e0121eccc86248 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Tue, 29 Mar 2022 14:09:10 +0200
Subject: [PATCH 42/62] chore(ltn) update file contents from wiki to markdown

---
 ltn012.wiki | 205 ++++++++++++++++++++++++++--------------------------
 ltn013.wiki | 127 ++++++++++++++++----------------
 2 files changed, 163 insertions(+), 169 deletions(-)

diff --git a/ltn012.wiki b/ltn012.wiki
index 96b13ae..fa26b4a 100644
--- a/ltn012.wiki
+++ b/ltn012.wiki
@@ -1,51 +1,48 @@
-===Filters, sources and sinks: design, motivation and examples===
-==or Functional programming for the rest of us==
+# Filters, sources and sinks: design, motivation and examples
+### or Functional programming for the rest of us
 by DiegoNehab
 
-{{{
+## Abstract
 
-}}}
+Certain operations can be implemented in the form of filters. A filter is a function that processes data received in consecutive function calls, returning partial results chunk by chunk. Examples of operations that can be implemented as filters include the end-of-line normalization for text, Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing, and there are many others. Filters become even more powerful when we allow them to be chained together to create composite filters. Filters can be seen as middle nodes in a chain of data transformations. Sources an sinks are the corresponding end points of these chains. A source is a function that produces data, chunk by chunk, and a sink is a function that takes data, chunk by chunk. In this technical note, we define an elegant interface for filters, sources, sinks and chaining. We evolve our interface progressively, until we reach a high degree of generality. We discuss difficulties that arise during the implementation of this interface and we provide solutions and examples.
 
-===Abstract===
-Certain operations can be implemented in the form of filters. A filter is a function that processes data received in consecutive function calls, returning partial results chunk by chunk.  Examples of operations that can be implemented as filters include the end-of-line normalization for text, Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing, and there are many others.  Filters become even more powerful when we allow them to be chained together to create composite filters. Filters can be seen as middle nodes in a chain of data transformations. Sources an sinks are the corresponding end points of these chains. A source is a function that produces data, chunk by chunk, and a sink is a function that takes data, chunk by chunk. In this technical note, we define an elegant interface for filters, sources, sinks and chaining. We evolve our interface progressively, until we reach a high degree of generality. We discuss difficulties that arise during the implementation of this interface and we provide solutions and examples. 
+## Introduction
 
-===Introduction===
+Applications sometimes have too much information to process to fit in memory and are thus forced to process data in smaller parts. Even when there is enough memory, processing all the data atomically may take long enough to frustrate a user that wants to interact with the application. Furthermore, complex transformations can often be defined as series of simpler operations. Several different complex transformations might share the same simpler operations, so that an uniform interface to combine them is desirable. The following concepts constitute our solution to these problems.
 
-Applications sometimes have too much information to process to fit in memory and are thus forced to process data in smaller parts.  Even when there is enough memory, processing all the data atomically may take long enough to frustrate a user that wants to interact with the application.  Furthermore, complex transformations can often be defined as series of simpler operations. Several different complex transformations might share the same simpler operations, so that an uniform interface to combine them is desirable. The following concepts constitute our solution to these problems. 
+"Filters" are functions that accept successive chunks of input, and produce successive chunks of output. Furthermore, the result of concatenating all the output data is the same as the result of applying the filter over the concatenation of the input data. As a consequence, boundaries are irrelevant: filters have to handle input data split arbitrarily by the user.
 
-''Filters'' are functions that accept successive chunks of input, and produce successive chunks of output. Furthermore, the result of concatenating all the output data is the same as the result of applying the filter over the concatenation of the input data. As a consequence, boundaries are irrelevant: filters have to handle input data split arbitrarily by the user. 
+A "chain" is a function that combines the effect of two (or more) other functions, but whose interface is indistinguishable from the interface of one of its components. Thus, a chained filter can be used wherever an atomic filter can be used. However, its effect on data is the combined effect of its component filters. Note that, as a consequence, chains can be chained themselves to create arbitrarily complex operations that can be used just like atomic operations.
 
-A ''chain'' is a function that combines the effect of two (or more) other functions, but whose interface is indistinguishable from the interface of one of its components.  Thus, a chained filter can be used wherever an atomic filter can be used.  However, its effect on data is the combined effect of its component filters. Note that, as a consequence, chains can be chained themselves to create arbitrarily complex operations that can be used just like atomic operations.
+Filters can be seen as internal nodes in a network through which data flows, potentially being transformed along its way. Chains connect these nodes together. To complete the picture, we need "sources" and "sinks" as initial and final nodes of the network, respectively. Less abstractly, a source is a function that produces new data every time it is called. On the other hand, sinks are functions that give a final destination to the data they receive. Naturally, sources and sinks can be chained with filters.
 
-Filters can be seen as internal nodes in a network through which data flows, potentially being transformed along its way.  Chains connect these nodes together. To complete the picture, we need ''sources'' and ''sinks'' as initial and final nodes of the network, respectively.  Less abstractly, a source is a function that produces new data every time it is called.  On the other hand, sinks are functions that give a final destination to the data they receive.  Naturally, sources and sinks can be chained with filters.
+Finally, filters, chains, sources, and sinks are all passive entities: they need to be repeatedly called in order for something to happen. "Pumps" provide the driving force that pushes data through the network, from a source to a sink.
 
-Finally, filters, chains, sources, and sinks are all passive entities: they need to be repeatedly called in order for something to happen.  ''Pumps'' provide the driving force that pushes data through the network, from a source to a sink.
+ Hopefully, these concepts will become clear with examples. In the following sections, we start with simplified interfaces, which we improve several times until we can find no obvious shortcomings. The evolution we present is not contrived: it follows the steps we followed ourselves as we consolidated our understanding of these concepts.
 
- Hopefully, these concepts will become clear with examples. In the following sections, we start with simplified interfaces, which we improve several times until we can find no obvious shortcomings. The evolution we present is not contrived: it follows the steps we followed ourselves as we consolidated our understanding of these concepts. 
+### A concrete example
 
-== A concrete example ==
-
-Some data transformations are easier to implement as filters than others.  Examples of operations that can be implemented as filters include the end-of-line normalization for text, the Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing, and many others. Let's use the end-of-line normalization as an example to define our initial filter interface. We later discuss why the implementation might not be trivial.
+Some data transformations are easier to implement as filters than others. Examples of operations that can be implemented as filters include the end-of-line normalization for text, the Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing, and many others. Let's use the end-of-line normalization as an example to define our initial filter interface. We later discuss why the implementation might not be trivial.
 
 Assume we are given text in an unknown end-of-line convention (including possibly mixed conventions) out of the commonly found Unix (LF), Mac OS (CR), and DOS (CRLF) conventions. We would like to be able to write code like the following:
-        {{{
+```lua
 input = source.chain(source.file(io.stdin), normalize("\r\n"))
 output = sink.file(io.stdout)
 pump(input, output)
-}}}
+```
 
-This program should read data from the standard input stream and normalize the end-of-line markers to the canonic CRLF marker defined by the MIME standard, finally sending the results to the standard output stream.  For that, we use a ''file source'' to produce data from standard input, and chain it with a filter that normalizes the data. The pump then repeatedly gets data from the source, and moves it to the ''file sink'' that sends it to standard output.
+This program should read data from the standard input stream and normalize the end-of-line markers to the canonic CRLF marker defined by the MIME standard, finally sending the results to the standard output stream. For that, we use a "file source" to produce data from standard input, and chain it with a filter that normalizes the data. The pump then repeatedly gets data from the source, and moves it to the "file sink" that sends it to standard output.
 
-To make the discussion even more concrete, we start by discussing the implementation of the normalization filter. The {{normalize}} ''factory'' is a function that creates such a filter. Our initial filter interface is as follows: the filter receives a chunk of input data, and returns a chunk of processed data. When there is no more input data, the user notifies the filter by invoking it with a {{nil}} chunk. The filter then returns the final chunk of processed data.
+To make the discussion even more concrete, we start by discussing the implementation of the normalization filter. The `normalize` "factory" is a function that creates such a filter. Our initial filter interface is as follows: the filter receives a chunk of input data, and returns a chunk of processed data. When there is no more input data, the user notifies the filter by invoking it with a `nil` chunk. The filter then returns the final chunk of processed data.
 
-Although the interface is extremely simple, the implementation doesn't seem so obvious. Any filter respecting this interface needs to keep some kind of context between calls. This is because chunks can be broken between the CR and LF characters marking the end of a line.  This need for context storage is what motivates the use of factories: each time the factory is called, it returns a filter with its own context so that we can have several independent filters being used at the same time.  For the normalization filter, we know that the obvious solution (i.e.  concatenating all the input into the context before producing any output) is not good enough, so we will have to find another way.
+Although the interface is extremely simple, the implementation doesn't seem so obvious. Any filter respecting this interface needs to keep some kind of context between calls. This is because chunks can be broken between the CR and LF characters marking the end of a line. This need for context storage is what motivates the use of factories: each time the factory is called, it returns a filter with its own context so that we can have several independent filters being used at the same time. For the normalization filter, we know that the obvious solution (i.e. concatenating all the input into the context before producing any output) is not good enough, so we will have to find another way.
 
 We will break the implementation in two parts: a low-level filter, and a factory of high-level filters. The low-level filter will be implemented in C and will not carry any context between function calls. The high-level filter factory, implemented in Lua, will create and return a high-level filter that keeps whatever context the low-level filter needs, but isolates the user from its internal details. That way, we take advantage of C's efficiency to perform the dirty work, and take advantage of Lua's simplicity for the bookkeeping.
 
-==The Lua part of the implementation==
+### The Lua part of the implementation
 
 Below is the implementation of the factory of high-level end-of-line normalization filters:
-        {{{
+```lua
 function filter.cycle(low, ctx, extra)
     return function(chunk)
         local ret
@@ -57,18 +54,18 @@ end
 function normalize(marker)
     return cycle(eol, 0, marker)
 end
-}}}
+```
 
-The {{normalize}} factory simply calls a more generic factory, the {{cycle}} factory. This factory receives a low-level filter, an initial context and some extra value and returns the corresponding high-level filter. Each time the high level filer is called with a new chunk, it calls the low-level filter passing the previous context, the new chunk and the extra argument. The low-level filter produces the chunk of processed data and a new context. Finally, the high-level filter updates its internal context and returns the processed chunk of data to the user.  It is the low-level filter that does all the work.  Notice that this implementation takes advantage of the Lua 5.0 lexical scoping rules to store the context locally, between function calls.  
+The `normalize` factory simply calls a more generic factory, the `cycle` factory. This factory receives a low-level filter, an initial context and some extra value and returns the corresponding high-level filter. Each time the high level filer is called with a new chunk, it calls the low-level filter passing the previous context, the new chunk and the extra argument. The low-level filter produces the chunk of processed data and a new context. Finally, the high-level filter updates its internal context and returns the processed chunk of data to the user. It is the low-level filter that does all the work. Notice that this implementation takes advantage of the Lua 5.0 lexical scoping rules to store the context locally, between function calls.
 
 Moving to the low-level filter, we notice there is no perfect solution to the end-of-line marker normalization problem itself. The difficulty comes from an inherent ambiguity on the definition of empty lines within mixed input. However, the following solution works well for any consistent input, as well as for non-empty lines in mixed input. It also does a reasonable job with empty lines and serves as a good example of how to implement a low-level filter.
 
-Here is what we do: CR and LF are considered candidates for line break.  We issue ''one'' end-of-line line marker if one of the candidates is seen alone, or followed by a ''different'' candidate.  That is, CR&nbsp;CR and LF&nbsp;LF issue two end of line markers each, but CR&nbsp;LF and LF&nbsp;CR issue only one marker.  This idea takes care of Mac OS, Mac OS X, VMS and Unix, DOS and MIME, as well as probably other more obscure conventions.
+Here is what we do: CR and LF are considered candidates for line break. We issue "one" end-of-line line marker if one of the candidates is seen alone, or followed by a "different" candidate. That is, CR&nbsp;CR and LF&nbsp;LF issue two end of line markers each, but CR&nbsp;LF and LF&nbsp;CR issue only one marker. This idea takes care of Mac OS, Mac OS X, VMS and Unix, DOS and MIME, as well as probably other more obscure conventions.
 
-==The C part of the implementation==
+### The C part of the implementation
 
 The low-level filter is divided into two simple functions. The inner function actually does the conversion. It takes each input character in turn, deciding what to output and how to modify the context. The context tells if the last character seen was a candidate and, if so, which candidate it was.
-        {{{
+```c
 #define candidate(c) (c == CR || c == LF)
 static int process(int c, int last, const char *marker, luaL_Buffer *buffer) {
     if (candidate(c)) {
@@ -84,10 +81,10 @@ static int process(int c, int last, const char *marker, luaL_Buffer *buffer) {
         return 0;
     }
 }
-}}}
+```
 
-The inner function makes use of Lua's auxiliary library's buffer interface for its efficiency and ease of use. The outer function simply interfaces with Lua.  It receives the context and the input chunk (as well as an optional end-of-line marker), and returns the transformed output and the new context.
-        {{{
+The inner function makes use of Lua's auxiliary library's buffer interface for its efficiency and ease of use. The outer function simply interfaces with Lua. It receives the context and the input chunk (as well as an optional end-of-line marker), and returns the transformed output and the new context.
+```c
 static int eol(lua_State *L) {
     int ctx = luaL_checkint(L, 1);
     size_t isize = 0;
@@ -107,16 +104,16 @@ static int eol(lua_State *L) {
     lua_pushnumber(L, ctx);
     return 2;
 }
-}}}
+```
 
-Notice that if the input chunk is {{nil}}, the operation is considered to be finished. In that case, the loop will not execute a single time and the context is reset to the initial state.  This allows the filter to be reused indefinitely. It is a good idea to write filters like this, when possible. 
+Notice that if the input chunk is `nil`, the operation is considered to be finished. In that case, the loop will not execute a single time and the context is reset to the initial state. This allows the filter to be reused indefinitely. It is a good idea to write filters like this, when possible.
 
-Besides the end-of-line normalization filter shown above, many other filters can be implemented with the same ideas. Examples include Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing etc. The challenging part is to decide what will be the context. For line breaking, for instance, it could be the number of bytes left in the current line.  For Base64 encoding, it could be the bytes that remain in the division of the input into 3-byte atoms. 
+Besides the end-of-line normalization filter shown above, many other filters can be implemented with the same ideas. Examples include Base64 and Quoted-Printable transfer content encodings, the breaking of text into lines, SMTP byte stuffing etc. The challenging part is to decide what will be the context. For line breaking, for instance, it could be the number of bytes left in the current line. For Base64 encoding, it could be the bytes that remain in the division of the input into 3-byte atoms.
 
-===Chaining===
+## Chaining
 
-Filters become more powerful when the concept of chaining is introduced. Suppose you have a filter for Quoted-Printable encoding and you want to encode some text. According to the standard, the text has to be normalized into its canonic form prior to encoding.  A nice interface that simplifies this task is a factory that creates a composite filter that passes data through multiple filters, but that can be used wherever a primitive filter is used.
-        {{{
+Filters become more powerful when the concept of chaining is introduced. Suppose you have a filter for Quoted-Printable encoding and you want to encode some text. According to the standard, the text has to be normalized into its canonic form prior to encoding. A nice interface that simplifies this task is a factory that creates a composite filter that passes data through multiple filters, but that can be used wherever a primitive filter is used.
+```lua
 local function chain2(f1, f2)
     return function(chunk)
         local ret = f2(f1(chunk))
@@ -140,18 +137,18 @@ while 1 do
     io.write(chain(chunk))
     if not chunk then break end
 end
-}}}
+```
 
-The chaining factory is very simple. All it does is return a function that passes data through all filters and returns the result to the user.  It uses the simpler auxiliary function that knows how to chain two filters together. In the auxiliary function, special care must be taken if the chunk is final. This is because the final chunk notification has to be pushed through both filters in turn. Thanks to the chain factory, it is easy to perform the Quoted-Printable conversion, as the above example shows.
+The chaining factory is very simple. All it does is return a function that passes data through all filters and returns the result to the user. It uses the simpler auxiliary function that knows how to chain two filters together. In the auxiliary function, special care must be taken if the chunk is final. This is because the final chunk notification has to be pushed through both filters in turn. Thanks to the chain factory, it is easy to perform the Quoted-Printable conversion, as the above example shows.
 
-===Sources, sinks, and pumps===
+## Sources, sinks, and pumps
 
 As we noted in the introduction, the filters we introduced so far act as the internal nodes in a network of transformations. Information flows from node to node (or rather from one filter to the next) and is transformed on its way out. Chaining filters together is the way we found to connect nodes in the network. But what about the end nodes?  In the beginning of the network, we need a node that provides the data, a source. In the end of the network, we need a node that takes in the data, a sink.
 
-==Sources==
+### Sources
 
-We start with two simple sources. The first is the {{empty}} source: It simply returns no data, possibly returning an error message. The second is the {{file}} source, which produces the contents of a file in a chunk by chunk fashion, closing the file handle when done.
-        {{{
+We start with two simple sources. The first is the `empty` source: It simply returns no data, possibly returning an error message. The second is the `file` source, which produces the contents of a file in a chunk by chunk fashion, closing the file handle when done.
+```lua
 function source.empty(err)
     return function()
         return nil, err
@@ -159,7 +156,7 @@ function source.empty(err)
 end
 
 function source.file(handle, io_err)
-    if handle then 
+    if handle then
         return function()
             local chunk = handle:read(2048)
             if not chunk then handle:close() end
@@ -167,44 +164,44 @@ function source.file(handle, io_err)
         end
     else return source.empty(io_err or "unable to open file") end
 end
-}}}
+```
 
-A source returns the next chunk of data each time it is called. When there is no more data, it just returns {{nil}}.  If there is an error, the source can inform the caller by returning {{nil}} followed by an error message. Adrian Sietsma noticed that, although not on purpose, the interface for sources is compatible with the idea of iterators in Lua 5.0. That is, a data source can be nicely used in conjunction with {{for}} loops.  Using our file source as an iterator, we can rewrite our first example:
-        {{{
+A source returns the next chunk of data each time it is called. When there is no more data, it just returns `nil`. If there is an error, the source can inform the caller by returning `nil` followed by an error message. Adrian Sietsma noticed that, although not on purpose, the interface for sources is compatible with the idea of iterators in Lua 5.0. That is, a data source can be nicely used in conjunction with `for` loops. Using our file source as an iterator, we can rewrite our first example:
+```lua
 local process = normalize("\r\n")
 for chunk in source.file(io.stdin) do
     io.write(process(chunk))
 end
 io.write(process(nil))
-}}}
+```
 
-Notice that the last call to the filter obtains the last chunk of processed data. The loop terminates when the source returns {{nil}} and therefore we need that final call outside of the loop.
+Notice that the last call to the filter obtains the last chunk of processed data. The loop terminates when the source returns `nil` and therefore we need that final call outside of the loop.
 
-==Maintaining state between calls==
+### Maintaining state between calls
 
-It is often the case that a source needs to change its behavior after some event. One simple example would be a file source that wants to make sure it returns {{nil}} regardless of how many times it is called after the end of file, avoiding attempts to read past the end of the file.  Another example would be a source that returns the contents of several files, as if they were concatenated, moving from one file to the next until the end of the last file is reached.
+It is often the case that a source needs to change its behavior after some event. One simple example would be a file source that wants to make sure it returns `nil` regardless of how many times it is called after the end of file, avoiding attempts to read past the end of the file. Another example would be a source that returns the contents of several files, as if they were concatenated, moving from one file to the next until the end of the last file is reached.
 
-One way to implement this kind of source is to have the factory declare extra state variables that the source can use via lexical scoping. Our file source could set the file handle itself to {{nil}} when it detects the end-of-file.  Then, every time the source is called, it could check if the handle is still valid and act accordingly:
-        {{{
+One way to implement this kind of source is to have the factory declare extra state variables that the source can use via lexical scoping. Our file source could set the file handle itself to `nil` when it detects the end-of-file. Then, every time the source is called, it could check if the handle is still valid and act accordingly:
+```lua
 function source.file(handle, io_err)
-    if handle then 
+    if handle then
         return function()
             if not handle then return nil end
             local chunk = handle:read(2048)
-            if not chunk then 
-                handle:close() 
+            if not chunk then
+                handle:close()
                 handle = nil
             end
             return chunk
         end
     else return source.empty(io_err or "unable to open file") end
 end
-}}}
+```
 
-Another way to implement this behavior involves a change in the source interface to makes it more flexible. Let's allow a source to return a second value, besides the next chunk of data.  If the returned chunk is {{nil}}, the extra return value tells us what happened. A second {{nil}} means that there is just no more data and the source is empty.  Any other value is considered to be an error message.  On the other hand, if the chunk was ''not'' {{nil}}, the second return value tells us whether the source wants to be replaced. If it is {{nil}}, we should proceed using the same source.  Otherwise it has to be another source, which we have to use from then on, to get the remaining data. 
+Another way to implement this behavior involves a change in the source interface to makes it more flexible. Let's allow a source to return a second value, besides the next chunk of data. If the returned chunk is `nil`, the extra return value tells us what happened. A second `nil` means that there is just no more data and the source is empty. Any other value is considered to be an error message. On the other hand, if the chunk was "not" `nil`, the second return value tells us whether the source wants to be replaced. If it is `nil`, we should proceed using the same source. Otherwise it has to be another source, which we have to use from then on, to get the remaining data.
 
-This extra freedom is good for someone writing a source function, but it is a pain for those that have to use it.  Fortunately, given one of these ''fancy'' sources, we can transform it into a simple source that never needs to be replaced, using the following factory.
-        {{{
+This extra freedom is good for someone writing a source function, but it is a pain for those that have to use it. Fortunately, given one of these "fancy" sources, we can transform it into a simple source that never needs to be replaced, using the following factory.
+```lua
 function source.simplify(src)
     return function()
         local chunk, err_or_new = src()
@@ -213,28 +210,28 @@ function source.simplify(src)
         else return chunk end
     end
 end
-}}}
+```
 
 The simplification factory allows us to write fancy sources and use them as if they were simple. Therefore, our next functions will only produce simple sources, and functions that take sources will assume they are simple.
 
 Going back to our file source, the extended interface allows for a more elegant implementation. The new source just asks to be replaced by an empty source as soon as there is no more data. There is no repeated checking of the handle. To make things simpler to the user, the factory itself simplifies the the fancy file source before returning it to the user:
-        {{{
+```lua
 function source.file(handle, io_err)
-    if handle then 
+    if handle then
         return source.simplify(function()
             local chunk = handle:read(2048)
-            if not chunk then 
+            if not chunk then
                 handle:close()
-                return "", source.empty() 
+                return "", source.empty()
             end
             return chunk
         end)
     else return source.empty(io_err or "unable to open file") end
 end
-}}}
+```
 
-We can make these ideas even more powerful if we use a new feature of Lua 5.0: coroutines.  Coroutines suffer from a great lack of advertisement, and I am going to play my part here.  Just like lexical scoping, coroutines taste odd at first, but once you get used with the concept, it can save your day. I have to admit that using coroutines to implement our file source would be overkill, so let's implement a concatenated source factory instead.
-        {{{
+We can make these ideas even more powerful if we use a new feature of Lua 5.0: coroutines. Coroutines suffer from a great lack of advertisement, and I am going to play my part here. Just like lexical scoping, coroutines taste odd at first, but once you get used with the concept, it can save your day. I have to admit that using coroutines to implement our file source would be overkill, so let's implement a concatenated source factory instead.
+```lua
 function source.cat(...)
     local arg = {...}
     local co = coroutine.create(function()
@@ -242,22 +239,22 @@ function source.cat(...)
         while i <= #arg do
             local chunk, err = arg[i]()
             if chunk then coroutine.yield(chunk)
-            elseif err then return nil, err 
-            else i = i + 1 end 
+            elseif err then return nil, err
+            else i = i + 1 end
         end
     end)
     return function()
         return shift(coroutine.resume(co))
     end
 end
-}}}
+```
 
-The factory creates two functions. The first is an auxiliary that does all the work, in the form of a coroutine. It reads a chunk from one of the sources. If the chunk is {{nil}}, it moves to the next source, otherwise it just yields returning the chunk. When it is resumed, it continues from where it stopped and tries to read the next chunk.  The second function is the source itself, and just resumes the execution of the auxiliary coroutine, returning to the user whatever chunks it returns (skipping the first result that tells us if the coroutine terminated). Imagine writing the same function without coroutines and you will notice the simplicity of this implementation. We will use coroutines again when we make the filter interface more powerful. 
+The factory creates two functions. The first is an auxiliary that does all the work, in the form of a coroutine. It reads a chunk from one of the sources. If the chunk is `nil`, it moves to the next source, otherwise it just yields returning the chunk. When it is resumed, it continues from where it stopped and tries to read the next chunk. The second function is the source itself, and just resumes the execution of the auxiliary coroutine, returning to the user whatever chunks it returns (skipping the first result that tells us if the coroutine terminated). Imagine writing the same function without coroutines and you will notice the simplicity of this implementation. We will use coroutines again when we make the filter interface more powerful.
 
-==Chaining Sources==
+### Chaining Sources
 
 What does it mean to chain a source with a filter?  The most useful interpretation is that the combined source-filter is a new source that produces data and passes it through the filter before returning it. Here is a factory that does it:
-        {{{
+```lua
 function source.chain(src, f)
     return source.simplify(function()
         local chunk, err = src()
@@ -265,14 +262,14 @@ function source.chain(src, f)
         else return f(chunk) end
     end)
 end
-}}}
+```
 
 Our motivating example in the introduction chains a source with a filter. The idea of chaining a source with a filter is useful when one thinks about functions that might get their input data from a source. By chaining a simple source with one or more filters, the same function can be provided with filtered data even though it is unaware of the filtering that is happening behind its back.
 
-==Sinks==
+### Sinks
 
-Just as we defined an interface for an initial source of data, we can also define an interface for a final destination of data. We call any function respecting that interface a ''sink''. Below are two simple factories that return sinks. The table factory creates a sink that stores all obtained data into a table. The data can later be efficiently concatenated into a single string with the {{table.concat}} library function. As another example, we introduce the {{null}} sink: A sink that simply discards the data it receives.
-        {{{
+Just as we defined an interface for an initial source of data, we can also define an interface for a final destination of data. We call any function respecting that interface a "sink". Below are two simple factories that return sinks. The table factory creates a sink that stores all obtained data into a table. The data can later be efficiently concatenated into a single string with the `table.concat` library function. As another example, we introduce the `null` sink: A sink that simply discards the data it receives.
+```lua
 function sink.table(t)
     t = t or {}
     local f = function(chunk, err)
@@ -289,12 +286,12 @@ end
 function sink.null()
     return null
 end
-}}}
+```
 
-Sinks receive consecutive chunks of data, until the end of data is notified with a {{nil}} chunk. An error is notified by an extra argument giving an error message after the {{nil}} chunk.  If a sink detects an error itself and wishes not to be called again, it should return {{nil}}, optionally followed by an error message. A return value that is not {{nil}} means the source will accept more data. Finally, just as sources can choose to be replaced, so can sinks, following the same interface. Once again, it is easy to implement a {{sink.simplify}} factory that transforms a fancy sink into a simple sink.
+Sinks receive consecutive chunks of data, until the end of data is notified with a `nil` chunk. An error is notified by an extra argument giving an error message after the `nil` chunk. If a sink detects an error itself and wishes not to be called again, it should return `nil`, optionally followed by an error message. A return value that is not `nil` means the source will accept more data. Finally, just as sources can choose to be replaced, so can sinks, following the same interface. Once again, it is easy to implement a `sink.simplify` factory that transforms a fancy sink into a simple sink.
 
 As an example, let's create a source that reads from the standard input, then chain it with a filter that normalizes the end-of-line convention and let's use a sink to place all data into a table, printing the result in the end.
-        {{{
+```lua
 local load = source.chain(source.file(io.stdin), normalize("\r\n"))
 local store, t = sink.table()
 while 1 do
@@ -303,10 +300,10 @@ while 1 do
     if not chunk then break end
 end
 print(table.concat(t))
-}}}
+```
 
-Again, just as we created a factory that produces a chained source-filter from a source and a filter, it is easy to create a factory that produces a new sink given a sink and a filter.  The new sink passes all data it receives through the filter before handing it in to the original sink. Here is the implementation: 
-        {{{
+Again, just as we created a factory that produces a chained source-filter from a source and a filter, it is easy to create a factory that produces a new sink given a sink and a filter. The new sink passes all data it receives through the filter before handing it in to the original sink. Here is the implementation:
+```lua
 function sink.chain(f, snk)
     return function(chunk, err)
         local r, e = snk(f(chunk))
@@ -315,12 +312,12 @@ function sink.chain(f, snk)
         return 1
     end
 end
-}}}
+```
 
-==Pumps==
+### Pumps
 
-There is a while loop that has been around for too long in our examples.  It's always there because everything that we designed so far is passive.  Sources, sinks, filters: None of them will do anything on their own. The operation of pumping all data a source can provide into a sink is so common that we will provide a couple helper functions to do that for us.
-        {{{
+There is a while loop that has been around for too long in our examples. It's always there because everything that we designed so far is passive. Sources, sinks, filters: None of them will do anything on their own. The operation of pumping all data a source can provide into a sink is so common that we will provide a couple helper functions to do that for us.
+```lua
 function pump.step(src, snk)
     local chunk, src_err = src()
     local ret, snk_err = snk(chunk, src_err)
@@ -334,31 +331,31 @@ function pump.all(src, snk, step)
         if not ret then return not err, err end
     end
 end
-}}}
+```
 
-The {{pump.step}} function moves one chunk of data from the source to the sink. The {{pump.all}} function takes an optional {{step}} function and uses it to pump all the data from the source to the sink. We can now use everything we have to write a program that reads a binary file from disk and stores it in another file, after encoding it to the Base64 transfer content encoding:
-        {{{
+The `pump.step` function moves one chunk of data from the source to the sink. The `pump.all` function takes an optional `step` function and uses it to pump all the data from the source to the sink. We can now use everything we have to write a program that reads a binary file from disk and stores it in another file, after encoding it to the Base64 transfer content encoding:
+```lua
 local load = source.chain(
-    source.file(io.open("input.bin", "rb")), 
+    source.file(io.open("input.bin", "rb")),
     encode("base64")
 )
 local store = sink.chain(
     wrap(76),
-    sink.file(io.open("output.b64", "w")), 
+    sink.file(io.open("output.b64", "w")),
 )
 pump.all(load, store)
-}}}
+```
 
-The way we split the filters here is not intuitive, on purpose.  Alternatively, we could have chained the Base64 encode filter and the line-wrap filter together, and then chain the resulting filter with either the file source or the file sink. It doesn't really matter.
+The way we split the filters here is not intuitive, on purpose. Alternatively, we could have chained the Base64 encode filter and the line-wrap filter together, and then chain the resulting filter with either the file source or the file sink. It doesn't really matter.
 
-===One last important change===
+## One last important change
 
-Turns out we still have a problem. When David Burgess was writing his gzip filter, he noticed that the decompression filter can explode a small input chunk into a huge amount of data. Although we wished we could ignore this problem, we soon agreed we couldn't. The only solution is to allow filters to return partial results, and that is what we chose to do.  After invoking the filter to pass input data, the user now has to loop invoking the filter to find out if it has more output data to return.  Note that these extra calls can't pass more data to the filter. 
+Turns out we still have a problem. When David Burgess was writing his gzip filter, he noticed that the decompression filter can explode a small input chunk into a huge amount of data. Although we wished we could ignore this problem, we soon agreed we couldn't. The only solution is to allow filters to return partial results, and that is what we chose to do. After invoking the filter to pass input data, the user now has to loop invoking the filter to find out if it has more output data to return. Note that these extra calls can't pass more data to the filter.
 
-More specifically, after passing a chunk of input data to a filter and collecting the first chunk of output data, the user invokes the filter repeatedly, passing the empty string, to get extra output chunks. When the filter itself returns an empty string, the user knows there is no more output data, and can proceed to pass the next input chunk. In the end, after the user passes a {{nil}} notifying the filter that there is no more input data, the filter might still have produced too much output data to return in a single chunk. The user has to loop again, this time passing {{nil}} each time, until the filter itself returns {{nil}} to notify the user it is finally done.
+More specifically, after passing a chunk of input data to a filter and collecting the first chunk of output data, the user invokes the filter repeatedly, passing the empty string, to get extra output chunks. When the filter itself returns an empty string, the user knows there is no more output data, and can proceed to pass the next input chunk. In the end, after the user passes a `nil` notifying the filter that there is no more input data, the filter might still have produced too much output data to return in a single chunk. The user has to loop again, this time passing `nil` each time, until the filter itself returns `nil` to notify the user it is finally done.
 
 Most filters won't need this extra freedom. Fortunately, the new filter interface is easy to implement. In fact, the end-of-line translation filter we created in the introduction already conforms to it. On the other hand, the chaining function becomes much more complicated. If it wasn't for coroutines, I wouldn't be happy to implement it. Let me know if you can find a simpler implementation that does not use coroutines!
-        {{{
+```lua
 local function chain2(f1, f2)
     local co = coroutine.create(function(chunk)
         while true do
@@ -380,14 +377,14 @@ local function chain2(f1, f2)
         return res
     end
 end
-}}}
+```
 
 Chaining sources also becomes more complicated, but a similar solution is possible with coroutines. Chaining sinks is just as simple as it has always been. Interestingly, these modifications do not have a measurable negative impact in the the performance of filters that didn't need the added flexibility. They do severely improve the efficiency of filters like the gzip filter, though, and that is why we are keeping them.
 
-===Final considerations===
+## Final considerations
 
-These ideas were created during the development of {{LuaSocket}}[http://www.tecgraf.puc-rio.br/luasocket] 2.0, and are available as the LTN12 module.  As a result, {{LuaSocket}}[http://www.tecgraf.puc-rio.br/luasocket] implementation was greatly simplified and became much more powerful.  The MIME module is especially integrated to LTN12 and provides many other filters. We felt these concepts deserved to be made public even to those that don't care about {{LuaSocket}}[http://www.tecgraf.puc-rio.br/luasocket], hence the LTN. 
+These ideas were created during the development of [LuaSocket](https://github.com/lunarmodules/luasocket) 2.0, and are available as the LTN12 module. As a result, [LuaSocket](https://github.com/lunarmodules/luasocket) implementation was greatly simplified and became much more powerful. The MIME module is especially integrated to LTN12 and provides many other filters. We felt these concepts deserved to be made public even to those that don't care about [LuaSocket](https://github.com/lunarmodules/luasocket), hence the LTN.
 
-One extra application that deserves mentioning makes use of an identity filter.  Suppose you want to provide some feedback to the user while a file is being downloaded into a sink. Chaining the sink with an identity filter (a filter that simply returns the received data unaltered), you can update a progress counter on the fly. The original sink doesn't have to be modified.  Another interesting idea is that of a T sink: A sink that sends data to two other sinks. In summary, there appears to be enough room for many other interesting ideas.
+One extra application that deserves mentioning makes use of an identity filter. Suppose you want to provide some feedback to the user while a file is being downloaded into a sink. Chaining the sink with an identity filter (a filter that simply returns the received data unaltered), you can update a progress counter on the fly. The original sink doesn't have to be modified. Another interesting idea is that of a T sink: A sink that sends data to two other sinks. In summary, there appears to be enough room for many other interesting ideas.
 
-In this technical note we introduced filters, sources, sinks, and pumps.  These are useful tools for data processing in general. Sources provide a simple abstraction for data acquisition. Sinks provide an abstraction for final data destinations. Filters define an interface for data transformations.  The chaining of filters, sources and sinks provides an elegant way to create arbitrarily complex data transformation from simpler transformations. Pumps just put the machinery to work.  
+In this technical note we introduced filters, sources, sinks, and pumps. These are useful tools for data processing in general. Sources provide a simple abstraction for data acquisition. Sinks provide an abstraction for final data destinations. Filters define an interface for data transformations. The chaining of filters, sources and sinks provides an elegant way to create arbitrarily complex data transformation from simpler transformations. Pumps just put the machinery to work.
diff --git a/ltn013.wiki b/ltn013.wiki
index a622424..9c56805 100644
--- a/ltn013.wiki
+++ b/ltn013.wiki
@@ -1,50 +1,47 @@
-===Using finalized exceptions===
-==or How to get rid of all those if statements==
+# Using finalized exceptions
+### or How to get rid of all those if statements
 by DiegoNehab
 
-{{{
 
-}}}
+## Abstract
+This little LTN describes a simple exception scheme that greatly simplifies error checking in Lua programs. All the needed functionality ships standard with Lua, but is hidden between the `assert` and `pcall` functions. To make it more evident, we stick to a convenient standard (you probably already use anyways) for Lua function return values, and define two very simple helper functions (either in C or in Lua itself).
 
-===Abstract===
-This little LTN describes a simple exception scheme that greatly simplifies error checking in Lua programs. All the needed functionality ships standard with Lua, but is hidden between the {{assert}} and {{pcall}} functions.  To make it more evident, we stick to a convenient standard (you probably already use anyways) for Lua function return values, and define two very simple helper functions (either in C or in Lua itself). 
+## Introduction
 
-===Introduction===
+Most Lua functions return `nil` in case of error, followed by a message describing the error. If you don't use this convention, you probably have good reasons. Hopefully, after reading on, you will realize your reasons are not good enough.
 
-Most Lua functions return {{nil}} in case of error, followed by a message describing the error. If you don't use this convention, you probably have good reasons. Hopefully, after reading on, you will realize your reasons are not good enough. 
+If you are like me, you hate error checking. Most nice little code snippets that look beautiful when you first write them lose some of their charm when you add all that error checking code. Yet, error checking is as important as  the rest of the code. How sad.
 
-If you are like me, you hate error checking. Most nice little code snippets that look beautiful when you first write them lose some of their charm when you add all that error checking code.  Yet, error checking is as important as  the rest of the code. How sad.
-
-Even if you stick to a return convention, any complex task involving several function calls makes error checking both boring and error-prone (do you see the ''error'' below?)
-        {{{
+Even if you stick to a return convention, any complex task involving several function calls makes error checking both boring and error-prone (do you see the "error" below?)
+```lua
 function task(arg1, arg2, ...)
     local ret1, err = task1(arg1)
-    if not ret1 then 
+    if not ret1 then
         cleanup1()
-        return nil, error 
+        return nil, error
     end
     local ret2, err = task2(arg2)
-    if not ret then 
+    if not ret then
         cleanup2()
-        return nil, error 
+        return nil, error
     end
     ...
 end
-}}}
+```
 
-The standard {{assert}} function provides an interesting alternative.  To use it, simply nest every function call to  be error checked with a call to {{assert}}. The {{assert}} function checks the value of its first argument.  If it is {{nil}}, {{assert}} throws the second argument as an error message. Otherwise, {{assert}} lets all arguments through as if had not been there. The idea greatly simplifies error checking: 
-        {{{
+The standard `assert` function provides an interesting alternative. To use it, simply nest every function call to  be error checked with a call to `assert`. The `assert` function checks the value of its first argument. If it is `nil`, `assert` throws the second argument as an error message. Otherwise, `assert` lets all arguments through as if had not been there. The idea greatly simplifies error checking:
+```lua
 function task(arg1, arg2, ...)
     local ret1 = assert(task1(arg1))
     local ret2 = assert(task2(arg2))
     ...
 end
-}}}
+```
 
-If any task fails, the execution is aborted by {{assert}} and the error message is displayed to the user as the cause of the problem.  If no error happens, the task completes as before. There isn't a single {{if}} statement and this is great. However, there are some problems with the idea.
+If any task fails, the execution is aborted by `assert` and the error message is displayed to the user as the cause of the problem. If no error happens, the task completes as before. There isn't a single `if` statement and this is great. However, there are some problems with the idea.
 
-First, the topmost {{task}} function doesn't respect the protocol followed by the lower-level tasks: It raises an error instead of returning {{nil}} followed by the error messages. Here is where the standard {{pcall}} comes in handy. 
-        {{{
+First, the topmost `task` function doesn't respect the protocol followed by the lower-level tasks: It raises an error instead of returning `nil` followed by the error messages. Here is where the standard `pcall` comes in handy.
+```lua
 function xtask(arg1, arg2, ...)
     local ret1 = assert(task1(arg1))
     local ret2 = assert(task2(arg2))
@@ -56,22 +53,22 @@ function task(arg1, arg2, ...)
     if ok then return ret_or_err
     else return nil, ret_or_err end
 end
-}}}
+```
 
-Our new {{task}} function is well behaved. {{Pcall}} catches any error raised by the calls to {{assert}} and returns it after the status code. That way, errors don't get propagated to the user of the high level {{task}} function. 
+Our new `task` function is well behaved. `Pcall` catches any error raised by the calls to `assert` and returns it after the status code. That way, errors don't get propagated to the user of the high level `task` function.
 
-These are the main ideas for our exception scheme, but there are still a few glitches to fix: 
+These are the main ideas for our exception scheme, but there are still a few glitches to fix:
 
-        * Directly using {{pcall}} ruined the simplicity of the code;
-        * What happened to the cleanup function calls? What if we have to, say, close a file?
-        * {{Assert}} messes with the error message before raising the error (it adds line number information).
+* Directly using `pcall` ruined the simplicity of the code;
+* What happened to the cleanup function calls? What if we have to, say, close a file?
+* `Assert` messes with the error message before raising the error (it adds line number information).
 
-Fortunately, all these problems are very easy to solve and that's what we do in the following sections. 
+Fortunately, all these problems are very easy to solve and that's what we do in the following sections.
 
-== Introducing the {{protect}} factory ==
+## Introducing the `protect` factory
 
-We used the {{pcall}} function to shield the user from errors that could be raised by the underlying implementation.  Instead of directly using {{pcall}} (and thus duplicating code) every time we prefer a factory that does the same job:
-        {{{
+We used the `pcall` function to shield the user from errors that could be raised by the underlying implementation. Instead of directly using `pcall` (and thus duplicating code) every time we prefer a factory that does the same job:
+```lua
 local function pack(ok, ...)
     return ok, {...}
 end
@@ -83,19 +80,19 @@ function protect(f)
         else return nil, ret[1] end
     end
 end
-}}}
+```
 
-The {{protect}} factory receives a function that might raise exceptions and returns a function that respects our return value convention. Now we can rewrite the top-level {{task}} function in a much cleaner way:
-        {{{
+The `protect` factory receives a function that might raise exceptions and returns a function that respects our return value convention. Now we can rewrite the top-level `task` function in a much cleaner way:
+```lua
 task = protect(function(arg1, arg2, ...)
     local ret1 = assert(task1(arg1))
     local ret2 = assert(task2(arg2))
     ...
 end)
-}}}
+```
 
-The Lua implementation of the {{protect}} factory suffers with the creation of tables to hold multiple arguments and return values.  It is possible (and easy) to implement the same function in C, without any table creation. 
-        {{{
+The Lua implementation of the `protect` factory suffers with the creation of tables to hold multiple arguments and return values. It is possible (and easy) to implement the same function in C, without any table creation.
+```c
 static int safecall(lua_State *L) {
     lua_pushvalue(L, lua_upvalueindex(1));
     lua_insert(L, 1);
@@ -110,17 +107,17 @@ static int protect(lua_State *L) {
     lua_pushcclosure(L, safecall, 1);
     return 1;
 }
-}}}
+```
 
-===The {{newtry}} factory===
+## The `newtry` factory
 
 Let's solve the two remaining issues with a single shot and use a concrete example to illustrate the proposed solution. Suppose you want to write a function to download an HTTP document. You have to connect, send the request and read the reply. Each of these tasks can fail, but if something goes wrong after you connected, you have to close the connection before returning the error message.
-        {{{
+```lua
 get = protect(function(host, path)
     local c
     -- create a try function with a finalizer to close the socket
-    local try = newtry(function() 
-        if c then c:close() end 
+    local try = newtry(function()
+        if c then c:close() end
     end)
     -- connect and send request
     c = try(connect(host, 80))
@@ -137,34 +134,34 @@ get = protect(function(host, path)
     c:close()
     return b, h
 end)
-}}}
+```
 
-The {{newtry}} factory returns a function that works just like {{assert}}. The differences are that the {{try}} function doesn't mess with the error message and it calls an optional ''finalizer'' before raising the error. In our example, the finalizer simply closes the socket.
+The `newtry` factory returns a function that works just like `assert`. The differences are that the `try` function doesn't mess with the error message and it calls an optional "finalizer" before raising the error. In our example, the finalizer simply closes the socket.
 
-Even with a simple example like this, we see that the finalized exceptions simplified our life. Let's see what we gain in general, not just in this example: 
+Even with a simple example like this, we see that the finalized exceptions simplified our life. Let's see what we gain in general, not just in this example:
 
-        * We don't need to declare dummy variables to hold error messages in case any ever shows up; 
-        * We avoid using a variable to hold something that could either be a return value or an error message; 
-        * We didn't have to use several ''if'' statements to check for errors;
-        * If an error happens, we know our finalizer is going to be invoked automatically;
-        * Exceptions get propagated, so we don't repeat these ''if'' statements until the error reaches the user.
+* We don't need to declare dummy variables to hold error messages in case any ever shows up;
+* We avoid using a variable to hold something that could either be a return value or an error message;
+* We didn't have to use several "if" statements to check for errors;
+* If an error happens, we know our finalizer is going to be invoked automatically;
+* Exceptions get propagated, so we don't repeat these "if" statements until the error reaches the user.
 
-Try writing the same function without the tricks we used above and you will see that the code gets ugly. Longer sequences of operations with error checking would get even uglier. So let's implement the {{newtry}} function in Lua:
-        {{{
+Try writing the same function without the tricks we used above and you will see that the code gets ugly. Longer sequences of operations with error checking would get even uglier. So let's implement the `newtry` function in Lua:
+```lua
 function newtry(f)
-    return function(...) 
-        if not arg[1] then 
-            if f then f() end 
-            error(arg[2], 0)  
-        else 
+    return function(...)
+        if not arg[1] then
+            if f then f() end
+            error(arg[2], 0)
+        else
             return ...
         end
     end
 end
-}}}
+```
 
 Again, the implementation suffers from the creation of tables at each function call, so we prefer the C version:
-        {{{
+```lua
 static int finalize(lua_State *L) {
     if (!lua_toboolean(L, 1)) {
         lua_pushvalue(L, lua_upvalueindex(1));
@@ -182,13 +179,13 @@ static int do_nothing(lua_State *L) {
 
 static int newtry(lua_State *L) {
     lua_settop(L, 1);
-    if (lua_isnil(L, 1)) 
+    if (lua_isnil(L, 1))
         lua_pushcfunction(L, do_nothing);
     lua_pushcclosure(L, finalize, 1);
     return 1;
 }
-}}}
+```
 
-===Final considerations===
+## Final considerations
 
-The {{protect}} and {{newtry}} functions saved a ''lot'' of work in the implementation of {{LuaSocket}}[http://www.tecgraf.puc-rio.br/luasocket].  The size of some modules was cut in half by the these ideas.  It's true the scheme is not as generic as the exception mechanism of programming languages like C++ or Java, but the power/simplicity ratio is favorable and I hope it serves you as well as it served {{LuaSocket}}.
+The `protect` and `newtry` functions saved a "lot" of work in the implementation of [LuaSocket](https://github.com/lunarmodules/luasocket). The size of some modules was cut in half by the these ideas. It's true the scheme is not as generic as the exception mechanism of programming languages like C++ or Java, but the power/simplicity ratio is favorable and I hope it serves you as well as it served [LuaSocket](https://github.com/lunarmodules/luasocket).

From 97d5194f302d3fb9fe27874d9b5f73004a208d01 Mon Sep 17 00:00:00 2001
From: Thijs Schreijer <thijs@thijsschreijer.nl>
Date: Tue, 29 Mar 2022 14:10:30 +0200
Subject: [PATCH 43/62] chore(ltn) rename files to markdown

---
 ltn012.wiki => ltn012.md | 0
 ltn013.wiki => ltn013.md | 0
 2 files changed, 0 insertions(+), 0 deletions(-)
 rename ltn012.wiki => ltn012.md (100%)
 rename ltn013.wiki => ltn013.md (100%)

diff --git a/ltn012.wiki b/ltn012.md
similarity index 100%
rename from ltn012.wiki
rename to ltn012.md
diff --git a/ltn013.wiki b/ltn013.md
similarity index 100%
rename from ltn013.wiki
rename to ltn013.md

From 38c7b5161b0c174050a0869a556e39bc499b1fa0 Mon Sep 17 00:00:00 2001
From: goldenstein64 <jamesramsauer@gmail.com>
Date: Tue, 26 Jul 2022 16:24:25 -0400
Subject: [PATCH 44/62] fix(rockspec): Fixup Windows (mingw32) builds (#383)

---
 rockspecs/luasocket-3.0.0-1.rockspec | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rockspecs/luasocket-3.0.0-1.rockspec b/rockspecs/luasocket-3.0.0-1.rockspec
index 4cf4acf..d64731a 100644
--- a/rockspecs/luasocket-3.0.0-1.rockspec
+++ b/rockspecs/luasocket-3.0.0-1.rockspec
@@ -34,7 +34,7 @@ local function make_plat(plat)
     },
     mingw32 = {
       "LUASOCKET_DEBUG",
-      "LUASOCKET_INET_PTON",
+      -- "LUASOCKET_INET_PTON",
       "WINVER=0x0501"
     }
   }
@@ -113,6 +113,7 @@ local function make_plat(plat)
   then
     modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
     modules["socket.core"].libraries = { "ws2_32" }
+    modules["socket.core"].libdirs = {}
   end
   return { modules = modules }
 end

From cff09ffb326237fd2edd848b6911521fe3e3d3fc Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Tue, 26 Jul 2022 23:39:17 +0300
Subject: [PATCH 45/62] chore(rockspec): Move recent PR change to proper
 rockspec (#384)

---
 luasocket-scm-3.rockspec             | 3 ++-
 rockspecs/luasocket-3.0.0-1.rockspec | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/luasocket-scm-3.rockspec b/luasocket-scm-3.rockspec
index 71f335c..1045251 100644
--- a/luasocket-scm-3.rockspec
+++ b/luasocket-scm-3.rockspec
@@ -34,7 +34,7 @@ local function make_plat(plat)
     },
     mingw32 = {
       "LUASOCKET_DEBUG",
-      "LUASOCKET_INET_PTON",
+      -- "LUASOCKET_INET_PTON",
       "WINVER=0x0501"
     }
   }
@@ -113,6 +113,7 @@ local function make_plat(plat)
   then
     modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
     modules["socket.core"].libraries = { "ws2_32" }
+    modules["socket.core"].libdirs = {}
   end
   return { modules = modules }
 end
diff --git a/rockspecs/luasocket-3.0.0-1.rockspec b/rockspecs/luasocket-3.0.0-1.rockspec
index d64731a..4cf4acf 100644
--- a/rockspecs/luasocket-3.0.0-1.rockspec
+++ b/rockspecs/luasocket-3.0.0-1.rockspec
@@ -34,7 +34,7 @@ local function make_plat(plat)
     },
     mingw32 = {
       "LUASOCKET_DEBUG",
-      -- "LUASOCKET_INET_PTON",
+      "LUASOCKET_INET_PTON",
       "WINVER=0x0501"
     }
   }
@@ -113,7 +113,6 @@ local function make_plat(plat)
   then
     modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
     modules["socket.core"].libraries = { "ws2_32" }
-    modules["socket.core"].libdirs = {}
   end
   return { modules = modules }
 end

From 0c7df119c2b71bed814db7b3da8fc379131433fe Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Wed, 27 Jul 2022 08:16:43 +0200
Subject: [PATCH 46/62] feat(tcp): Add support for TCP Fast Open

---
 docs/tcp.html |  4 ++++
 src/options.c | 16 ++++++++++++++++
 src/options.h |  7 +++++++
 src/tcp.c     |  6 ++++++
 4 files changed, 33 insertions(+)

diff --git a/docs/tcp.html b/docs/tcp.html
index 9cc173e..f15196c 100644
--- a/docs/tcp.html
+++ b/docs/tcp.html
@@ -485,6 +485,10 @@ disables the Nagle's algorithm for the connection;</li>
 
 <li> '<tt>tcp-keepintvl</tt>': value for <tt>TCP_KEEPINTVL</tt> Linux only!!</li>
 
+<li> '<tt>tcp-fastopen</tt>': value for <tt>TCP_FASTOPEN</tt> Linux only!!</li>
+
+<li> '<tt>tcp-fastopen-connect</tt>': value for <tt>TCP_FASTOPEN_CONNECT</tt> Linux only!!</li>
+
 <li> '<tt>ipv6-v6only</tt>':
 Setting this option to <tt>true</tt> restricts an <tt>inet6</tt> socket to
 sending and receiving only IPv6 packets.</li>
diff --git a/src/options.c b/src/options.c
index 2b53c67..51ea351 100644
--- a/src/options.c
+++ b/src/options.c
@@ -190,6 +190,22 @@ int opt_set_send_buf_size(lua_State *L, p_socket ps)
 	return opt_setint(L, ps, SOL_SOCKET, SO_SNDBUF);
 }
 
+// /*------------------------------------------------------*/
+
+#ifdef TCP_FASTOPEN
+int opt_set_tcp_fastopen(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_FASTOPEN);
+}
+#endif
+
+#ifdef TCP_FASTOPEN_CONNECT
+int opt_set_tcp_fastopen_connect(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_FASTOPEN_CONNECT);
+}
+#endif
+
 /*------------------------------------------------------*/
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
diff --git a/src/options.h b/src/options.h
index 41f7337..a4d5d75 100644
--- a/src/options.h
+++ b/src/options.h
@@ -64,6 +64,13 @@ int opt_get_recv_buf_size(lua_State *L, p_socket ps);
 int opt_set_send_buf_size(lua_State *L, p_socket ps);
 int opt_get_send_buf_size(lua_State *L, p_socket ps);
 
+#ifdef TCP_FASTOPEN
+int opt_set_tcp_fastopen(lua_State *L, p_socket ps);
+#endif
+#ifdef TCP_FASTOPEN_CONNECT
+int opt_set_tcp_fastopen_connect(lua_State *L, p_socket ps);
+#endif
+
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps);
 int opt_get_ip6_unicast_hops(lua_State *L, p_socket ps);
 
diff --git a/src/tcp.c b/src/tcp.c
index 5876bfb..e24cb0c 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -109,6 +109,12 @@ static t_opt optset[] = {
     {"linger",      opt_set_linger},
 	{"recv-buffer-size",     opt_set_recv_buf_size},
 	{"send-buffer-size",     opt_set_send_buf_size},
+#ifdef TCP_FASTOPEN
+    {"tcp-fastopen", opt_set_tcp_fastopen},
+#endif
+#ifdef TCP_FASTOPEN_CONNECT
+    {"tcp-fastopen-connect", opt_set_tcp_fastopen_connect},
+#endif
     {NULL,          NULL}
 };
 

From d1ad8160cba9e504c9d17665492044a93efdc3ab Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Wed, 27 Jul 2022 08:40:18 +0200
Subject: [PATCH 47/62] feat(tcp): Add support for TCP Defer Accept

This makes it so that a listening socket does not become readable for
accept() until a connection has been fully established *and* started
sending something, thus the program doesn't have to wait for the first
data. This only makes sense for client-speaks-first protocols.

Co-authored-by: Caleb Maclennan <caleb@alerque.com>
---
 docs/tcp.html | 2 ++
 src/options.c | 9 +++++++++
 src/options.h | 4 ++++
 src/tcp.c     | 3 +++
 4 files changed, 18 insertions(+)

diff --git a/docs/tcp.html b/docs/tcp.html
index f15196c..a26228d 100644
--- a/docs/tcp.html
+++ b/docs/tcp.html
@@ -485,6 +485,8 @@ disables the Nagle's algorithm for the connection;</li>
 
 <li> '<tt>tcp-keepintvl</tt>': value for <tt>TCP_KEEPINTVL</tt> Linux only!!</li>
 
+<li> '<tt>tcp-defer-accept</tt>': value for <tt>TCP_DEFER_ACCEPT</tt> Linux only!!</li>
+
 <li> '<tt>tcp-fastopen</tt>': value for <tt>TCP_FASTOPEN</tt> Linux only!!</li>
 
 <li> '<tt>tcp-fastopen-connect</tt>': value for <tt>TCP_FASTOPEN_CONNECT</tt> Linux only!!</li>
diff --git a/src/options.c b/src/options.c
index 51ea351..3280c51 100644
--- a/src/options.c
+++ b/src/options.c
@@ -206,6 +206,15 @@ int opt_set_tcp_fastopen_connect(lua_State *L, p_socket ps)
 }
 #endif
 
+/*------------------------------------------------------*/
+
+#ifdef TCP_DEFER_ACCEPT
+int opt_set_tcp_defer_accept(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_DEFER_ACCEPT);
+}
+#endif
+
 /*------------------------------------------------------*/
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
diff --git a/src/options.h b/src/options.h
index a4d5d75..456eeb5 100644
--- a/src/options.h
+++ b/src/options.h
@@ -49,6 +49,10 @@ int opt_set_tcp_keepintvl(lua_State *L, p_socket ps);
 int opt_get_tcp_keepintvl(lua_State *L, p_socket ps);
 #endif
 
+#ifdef TCP_DEFER_ACCEPT
+int opt_set_tcp_defer_accept(lua_State *L, p_socket ps);
+#endif
+
 int opt_set_keepalive(lua_State *L, p_socket ps);
 int opt_get_keepalive(lua_State *L, p_socket ps);
 
diff --git a/src/tcp.c b/src/tcp.c
index e24cb0c..e84db84 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -109,6 +109,9 @@ static t_opt optset[] = {
     {"linger",      opt_set_linger},
 	{"recv-buffer-size",     opt_set_recv_buf_size},
 	{"send-buffer-size",     opt_set_send_buf_size},
+#ifdef TCP_DEFER_ACCEPT
+    {"tcp-defer-accept", opt_set_tcp_defer_accept},
+#endif
 #ifdef TCP_FASTOPEN
     {"tcp-fastopen", opt_set_tcp_fastopen},
 #endif

From 5a7e3f08886ef2893148c1342fb6021291cf1307 Mon Sep 17 00:00:00 2001
From: rpatters1 <rpatters1@users.noreply.github.com>
Date: Wed, 27 Jul 2022 01:51:35 -0500
Subject: [PATCH 48/62] fix(build): Use gai_strerrorA not gai_strerror on
 Windows

* Explicitly call gai_strerrorA (for Windows builds), so that the code work correctly in 32bit or 64bit builds.

* Implement GAI_STRERROR macro to deal with Windows vs. Non-Windows compiles for 64-bit.

* make usocket.c consistent with other modules that call macro GAI_STRERROR

* Use different name not just different case for macro wrapping function

Co-authored-by: Caleb Maclennan <caleb@alerque.com>
---
 src/inet.c    | 4 ++--
 src/socket.h  | 2 ++
 src/udp.c     | 4 ++--
 src/usocket.c | 2 +-
 src/wsocket.c | 2 +-
 5 files changed, 8 insertions(+), 6 deletions(-)
 mode change 100644 => 100755 src/inet.c
 mode change 100644 => 100755 src/socket.h
 mode change 100644 => 100755 src/udp.c

diff --git a/src/inet.c b/src/inet.c
old mode 100644
new mode 100755
index ec73fea..138c9ab
--- a/src/inet.c
+++ b/src/inet.c
@@ -253,7 +253,7 @@ int inet_meth_getpeername(lua_State *L, p_socket ps, int family)
         port, sizeof(port), NI_NUMERICHOST | NI_NUMERICSERV);
     if (err) {
         lua_pushnil(L);
-        lua_pushstring(L, gai_strerror(err));
+        lua_pushstring(L, LUA_GAI_STRERROR(err));
         return 2;
     }
     lua_pushstring(L, name);
@@ -286,7 +286,7 @@ int inet_meth_getsockname(lua_State *L, p_socket ps, int family)
 		name, INET6_ADDRSTRLEN, port, 6, NI_NUMERICHOST | NI_NUMERICSERV);
     if (err) {
         lua_pushnil(L);
-        lua_pushstring(L, gai_strerror(err));
+        lua_pushstring(L, LUA_GAI_STRERROR(err));
         return 2;
     }
     lua_pushstring(L, name);
diff --git a/src/socket.h b/src/socket.h
old mode 100644
new mode 100755
index e541f27..2555bab
--- a/src/socket.h
+++ b/src/socket.h
@@ -16,8 +16,10 @@
 \*=========================================================================*/
 #ifdef _WIN32
 #include "wsocket.h"
+#define LUA_GAI_STRERROR gai_strerrorA
 #else
 #include "usocket.h"
+#define LUA_GAI_STRERROR gai_strerror
 #endif
 
 /*=========================================================================*\
diff --git a/src/udp.c b/src/udp.c
old mode 100644
new mode 100755
index 62b6a20..712ad50
--- a/src/udp.c
+++ b/src/udp.c
@@ -191,7 +191,7 @@ static int meth_sendto(lua_State *L) {
     err = getaddrinfo(ip, port, &aihint, &ai);
 	if (err) {
         lua_pushnil(L);
-        lua_pushstring(L, gai_strerror(err));
+        lua_pushstring(L, LUA_GAI_STRERROR(err));
         return 2;
     }
 
@@ -290,7 +290,7 @@ static int meth_receivefrom(lua_State *L) {
         INET6_ADDRSTRLEN, portstr, 6, NI_NUMERICHOST | NI_NUMERICSERV);
 	if (err) {
         lua_pushnil(L);
-        lua_pushstring(L, gai_strerror(err));
+        lua_pushstring(L, LUA_GAI_STRERROR(err));
         if (wanted > sizeof(buf)) free(dgram);
         return 2;
     }
diff --git a/src/usocket.c b/src/usocket.c
index acfe186..69635da 100644
--- a/src/usocket.c
+++ b/src/usocket.c
@@ -449,6 +449,6 @@ const char *socket_gaistrerror(int err) {
         case EAI_SERVICE: return PIE_SERVICE;
         case EAI_SOCKTYPE: return PIE_SOCKTYPE;
         case EAI_SYSTEM: return strerror(errno);
-        default: return gai_strerror(err);
+        default: return LUA_GAI_STRERROR(err);
     }
 }
diff --git a/src/wsocket.c b/src/wsocket.c
index 7cd4115..6cb1e41 100755
--- a/src/wsocket.c
+++ b/src/wsocket.c
@@ -429,6 +429,6 @@ const char *socket_gaistrerror(int err) {
 #ifdef EAI_SYSTEM
         case EAI_SYSTEM: return strerror(errno);
 #endif
-        default: return gai_strerror(err);
+        default: return LUA_GAI_STRERROR(err);
     }
 }

From 80503077dbb8428e4e99410d31ab42dd0438eef9 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 27 Jul 2022 09:55:54 +0300
Subject: [PATCH 49/62] ci: Echo correct platform in job title

---
 .github/workflows/build.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d6fe214..ee6e1d4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,11 +8,11 @@ on:
 
 jobs:
   build:
-    name: Test build on Linux
+    name: Test build on ${{ matrix.platform }}
     strategy:
       fail-fast: false
       matrix:
-        luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty"]
+        luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
         platform: [ "ubuntu-20.04", "macos-11" ] # "windows-2022" not supported by gh-actions-lua
     runs-on: ${{ matrix.platform }}
     steps:

From 95b7efa9da506ef968c1347edf3fc56370f0deed Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 27 Jul 2022 10:06:54 +0300
Subject: [PATCH 50/62] chore: Release v3.1.0

---
 CHANGELOG.md                         |   7 ++
 docs/index.html                      |   2 +-
 rockspecs/luasocket-3.1.0-1.rockspec | 135 +++++++++++++++++++++++++++
 3 files changed, 143 insertions(+), 1 deletion(-)
 create mode 100644 rockspecs/luasocket-3.1.0-1.rockspec

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0de05f3..3a25186 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [v3.1.0](https://github.com/lunarmodules/luasocket/releases/v3.1.0) — 2022-07-27
+
+* Add support for TCP Defer Accept – @Zash
+* Add support for TCP Fast Open – @Zash
+* Fix Windows (mingw32) builds – @goldenstein64
+* Avoid build warnings on 64-bit Windows – @rpatters1
+
 ## [v3.0.0](https://github.com/lunarmodules/luasocket/releases/v3.0.0) — 2022-03-25
 
 The last time LuaSocket had a stable release tag was 14 years ago when 2.0.2 was tagged.
diff --git a/docs/index.html b/docs/index.html
index 31e18ad..ad92687 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -87,7 +87,7 @@ Author: <a href="http://www.impa.br/~diego">Diego Nehab</a>
 <h2 id="download">Download</h2>
 
 <p>
-LuaSocket version 3.0.0 is now available for download!
+LuaSocket version 3.1.0 is now available for download!
 It is compatible with Lua&nbsp;5.1 through 5.4.
 Chances are it works well on most UNIX distributions and Windows flavors.
 </p>
diff --git a/rockspecs/luasocket-3.1.0-1.rockspec b/rockspecs/luasocket-3.1.0-1.rockspec
new file mode 100644
index 0000000..2d724ac
--- /dev/null
+++ b/rockspecs/luasocket-3.1.0-1.rockspec
@@ -0,0 +1,135 @@
+package = "LuaSocket"
+version = "3.1.0-1"
+source = {
+  url = "git+https://github.com/lunarmodules/luasocket.git",
+  tag = "v3.1.0"
+}
+description = {
+  summary = "Network support for the Lua language",
+  detailed = [[
+      LuaSocket is a Lua extension library composed of two parts: a set of C
+      modules that provide support for the TCP and UDP transport layers, and a
+      set of Lua modules that provide functions commonly needed by applications
+      that deal with the Internet.
+   ]],
+  homepage = "https://github.com/lunarmodules/luasocket",
+  license = "MIT"
+}
+dependencies = {
+  "lua >= 5.1"
+}
+
+local function make_plat(plat)
+  local defines = {
+    unix = {
+      "LUASOCKET_DEBUG"
+    },
+    macosx = {
+      "LUASOCKET_DEBUG",
+      "UNIX_HAS_SUN_LEN"
+    },
+    win32 = {
+      "LUASOCKET_DEBUG",
+      "NDEBUG"
+    },
+    mingw32 = {
+      "LUASOCKET_DEBUG",
+      -- "LUASOCKET_INET_PTON",
+      "WINVER=0x0501"
+    }
+  }
+  local modules = {
+    ["socket.core"] = {
+      sources = {
+        "src/luasocket.c"
+        , "src/timeout.c"
+        , "src/buffer.c"
+        , "src/io.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/inet.c"
+        , "src/except.c"
+        , "src/select.c"
+        , "src/tcp.c"
+        , "src/udp.c"
+        , "src/compat.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    },
+    ["mime.core"] = {
+      sources = { "src/mime.c", "src/compat.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    },
+    ["socket.http"]    = "src/http.lua",
+    ["socket.url"]     = "src/url.lua",
+    ["socket.tp"]      = "src/tp.lua",
+    ["socket.ftp"]     = "src/ftp.lua",
+    ["socket.headers"] = "src/headers.lua",
+    ["socket.smtp"]    = "src/smtp.lua",
+    ltn12              = "src/ltn12.lua",
+    socket             = "src/socket.lua",
+    mime               = "src/mime.lua"
+  }
+  if plat == "unix"
+    or plat == "macosx"
+    or plat == "haiku"
+  then
+    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/usocket.c"
+    if plat == "haiku" then
+      modules["socket.core"].libraries = {"network"}
+    end
+    modules["socket.unix"] = {
+      sources = {
+        "src/buffer.c"
+        , "src/compat.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/timeout.c"
+        , "src/io.c"
+        , "src/usocket.c"
+        , "src/unix.c"
+        , "src/unixdgram.c"
+        , "src/unixstream.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    }
+    modules["socket.serial"] = {
+      sources = {
+        "src/buffer.c"
+        , "src/compat.c"
+        , "src/auxiliar.c"
+        , "src/options.c"
+        , "src/timeout.c"
+        , "src/io.c"
+        , "src/usocket.c"
+        , "src/serial.c" },
+      defines = defines[plat],
+      incdir = "/src"
+    }
+  end
+  if  plat == "win32"
+    or plat == "mingw32"
+  then
+    modules["socket.core"].sources[#modules["socket.core"].sources+1] = "src/wsocket.c"
+    modules["socket.core"].libraries = { "ws2_32" }
+    modules["socket.core"].libdirs = {}
+  end
+  return { modules = modules }
+end
+
+build = {
+  type = "builtin",
+  platforms = {
+    unix = make_plat("unix"),
+    macosx = make_plat("macosx"),
+    haiku = make_plat("haiku"),
+    win32 = make_plat("win32"),
+    mingw32 = make_plat("mingw32")
+  },
+  copy_directories = {
+    "docs"
+    , "samples"
+    , "etc"
+    , "test" }
+}

From 30ddf0eaea2de526acdd3236d27f6788af3576e2 Mon Sep 17 00:00:00 2001
From: George  Zhao <zhaozg@gmail.com>
Date: Sun, 28 Aug 2022 02:31:54 +0800
Subject: [PATCH 51/62] style(core) Remove lingering c-style comment (#388)

---
 src/options.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/options.c b/src/options.c
index 3280c51..657947c 100644
--- a/src/options.c
+++ b/src/options.c
@@ -190,7 +190,7 @@ int opt_set_send_buf_size(lua_State *L, p_socket ps)
 	return opt_setint(L, ps, SOL_SOCKET, SO_SNDBUF);
 }
 
-// /*------------------------------------------------------*/
+/*------------------------------------------------------*/
 
 #ifdef TCP_FASTOPEN
 int opt_set_tcp_fastopen(lua_State *L, p_socket ps)

From 88c72acd771ac6c96ea7f4e57293307e282ad49f Mon Sep 17 00:00:00 2001
From: zhaozg <zhaozg@gmail.com>
Date: Tue, 30 Aug 2022 15:19:44 +0800
Subject: [PATCH 52/62] fix(usocket): Fix typo in return value function name

---
 src/usocket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usocket.c b/src/usocket.c
index 69635da..bd18926 100644
--- a/src/usocket.c
+++ b/src/usocket.c
@@ -403,7 +403,7 @@ const char *socket_hoststrerror(int err) {
     if (err <= 0) return io_strerror(err);
     switch (err) {
         case HOST_NOT_FOUND: return PIE_HOST_NOT_FOUND;
-        default: return hstrerror(err);
+        default: return strerror(err);
     }
 }
 

From 159890c3662976dc027f2fe6bb94074ff62f15e7 Mon Sep 17 00:00:00 2001
From: zhaozg <zhaozg@gmail.com>
Date: Tue, 30 Aug 2022 15:20:24 +0800
Subject: [PATCH 53/62] style(usocket): Remove trailing space at EOL

---
 src/usocket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usocket.c b/src/usocket.c
index bd18926..df19f78 100644
--- a/src/usocket.c
+++ b/src/usocket.c
@@ -236,7 +236,7 @@ int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
     *sent = 0;
     if (*ps == SOCKET_INVALID) return IO_CLOSED;
     for ( ;; ) {
-        long put = (long) sendto(*ps, data, count, 0, addr, len); 
+        long put = (long) sendto(*ps, data, count, 0, addr, len);
         if (put >= 0) {
             *sent = put;
             return IO_DONE;

From 26b524e1d7b9a00045882d3c0f25486485b1d6a8 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 31 Aug 2022 00:34:39 +0300
Subject: [PATCH 54/62] Revert "fix(usocket): Fix typo in return value function
 name"

This reverts commit 88c72acd771ac6c96ea7f4e57293307e282ad49f.

See discussion on #390
---
 src/usocket.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/usocket.c b/src/usocket.c
index df19f78..7965db6 100644
--- a/src/usocket.c
+++ b/src/usocket.c
@@ -403,7 +403,7 @@ const char *socket_hoststrerror(int err) {
     if (err <= 0) return io_strerror(err);
     switch (err) {
         case HOST_NOT_FOUND: return PIE_HOST_NOT_FOUND;
-        default: return strerror(err);
+        default: return hstrerror(err);
     }
 }
 

From 8c2ff7217e2a205eb107a6f48b04ff1b2b3090a1 Mon Sep 17 00:00:00 2001
From: Henri D <nheir.kim@gmail.com>
Date: Sat, 8 Oct 2022 08:42:36 +0200
Subject: [PATCH 55/62] fix(http): Allow relative redirect on https (#395)

Location header can now be relative: https://httpwg.org/specs/rfc9110.html#field.location
---
 src/http.lua      |  5 +++--
 test/httptest.lua | 31 +++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/src/http.lua b/src/http.lua
index 1330355..fbd5ff6 100644
--- a/src/http.lua
+++ b/src/http.lua
@@ -300,6 +300,8 @@ local function shouldredirect(reqt, code, headers)
     if not location then return false end
     location = string.gsub(location, "%s", "")
     if location == "" then return false end
+    -- the RFC says the redirect URL may be relative
+    location = url.absolute(reqt.url, location)
     local scheme = url.parse(location).scheme
     if scheme and (not SCHEMES[scheme]) then return false end
     -- avoid https downgrades
@@ -323,8 +325,7 @@ end
 local trequest, tredirect
 
 --[[local]] function tredirect(reqt, location)
-    -- the RFC says the redirect URL has to be absolute, but some
-    -- servers do not respect that
+    -- the RFC says the redirect URL may be relative
     local newurl = url.absolute(reqt.url, location)
     -- if switching schemes, reset port and create function
     if url.parse(newurl).scheme ~= reqt.scheme then
diff --git a/test/httptest.lua b/test/httptest.lua
index 63ff921..3457b07 100644
--- a/test/httptest.lua
+++ b/test/httptest.lua
@@ -265,6 +265,37 @@ ignore = {
 }
 check_request(request, expect, ignore)
 
+-- Use https://httpbin.org/#/Dynamic_data/get_base64__value_ for testing
+-----------------------------------------------------
+io.write("testing absolute https redirection: ")
+request = {
+    url = "https://httpbin.org/redirect-to?url=https://httpbin.org/base64/THVhIFNvY2tldA=="
+}
+expect = {
+    code = 200,
+    body = "Lua Socket"
+}
+ignore = {
+    status = 1,
+    headers = 1
+}
+check_request(request, expect, ignore)
+
+-----------------------------------------------------
+io.write("testing relative https redirection: ")
+request = {
+    url = "https://httpbin.org/redirect-to?url=/base64/THVhIFNvY2tldA=="
+}
+expect = {
+    code = 200,
+    body = "Lua Socket"
+}
+ignore = {
+    status = 1,
+    headers = 1
+}
+check_request(request, expect, ignore)
+
 ------------------------------------------------------------------------
 --[[
 io.write("testing proxy with redirection: ")

From 9100f7e3abf3511009fa21de1e0b304cac5489d3 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Tue, 17 Oct 2023 09:06:10 +0300
Subject: [PATCH 56/62] docs: Fixup badge URLs with current GH API

---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index af722be..6f5657c 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # LuaSocket
 
 
-[![Build](https://img.shields.io/github/workflow/status/lunarmodules/luasocket/Build?label=Build=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Build)
-[![Luacheck](https://img.shields.io/github/workflow/status/lunarmodules/luasocket/Luacheck?label=Luacheck&logo=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Luacheck)
+[![Build](https://img.shields.io/github/actions/workflow/status/lunarmodules/luasocket/build.yml?branch=master&label=Build&logo=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Build)
+[![Luacheck](https://img.shields.io/github/actions/workflow/status/lunarmodules/luasocket/luacheck.yml?branch=master&label=Luacheck&logo=Lua)](https://github.com/lunarmodules/luasocket/actions?workflow=Luacheck)
 [![GitHub tag (latest SemVer)](https://img.shields.io/github/v/tag/lunarmodules/luasocket?label=Tag&logo=GitHub)](https://github.com/lunarmodules/luasocket/releases)
 [![Luarocks](https://img.shields.io/luarocks/v/lunarmodules/luasocket?label=Luarocks&logo=Lua)](https://luarocks.org/modules/lunarmodules/luasocket)
 

From f741a88b80ffcf4de65b91ff82fc9f7865cbad0e Mon Sep 17 00:00:00 2001
From: Leso_KN <info@lesosoftware.com>
Date: Mon, 23 Oct 2023 20:27:01 +0200
Subject: [PATCH 57/62] feat(tcp): Add 'bindtodevice' option (#408)

---
 src/options.c | 27 +++++++++++++++++++++++++++
 src/options.h |  3 +++
 src/tcp.c     |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/src/options.c b/src/options.c
index 657947c..3856797 100644
--- a/src/options.c
+++ b/src/options.c
@@ -54,6 +54,33 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
     return opt->func(L, ps);
 }
 
+/*------------------------------------------------------*/
+/* binds socket to network interface */
+int opt_set_bindtodevice(lua_State *L, p_socket ps)
+{
+#ifdef __APPLE__
+    return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
+#else
+    const char *dev = luaL_checkstring(L, 3);
+    return opt_set(L, ps, SOL_SOCKET, SO_BINDTODEVICE, (char*)dev, strlen(dev)+1);
+#endif
+}
+
+int opt_get_bindtodevice(lua_State *L, p_socket ps)
+{
+#ifdef __APPLE__
+    return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
+#else
+    char dev[IFNAMSIZ];
+    int len = sizeof(dev);
+    int err = opt_get(L, ps, SOL_SOCKET, SO_BINDTODEVICE, &dev, &len);
+    if (err)
+        return err;
+    lua_pushstring(L, dev);
+    return 1;
+#endif
+}
+
 /*------------------------------------------------------*/
 /* enables reuse of local address */
 int opt_set_reuseaddr(lua_State *L, p_socket ps)
diff --git a/src/options.h b/src/options.h
index 456eeb5..26d6f02 100644
--- a/src/options.h
+++ b/src/options.h
@@ -53,6 +53,9 @@ int opt_get_tcp_keepintvl(lua_State *L, p_socket ps);
 int opt_set_tcp_defer_accept(lua_State *L, p_socket ps);
 #endif
 
+int opt_set_bindtodevice(lua_State *L, p_socket ps);
+int opt_get_bindtodevice(lua_State *L, p_socket ps);
+
 int opt_set_keepalive(lua_State *L, p_socket ps);
 int opt_get_keepalive(lua_State *L, p_socket ps);
 
diff --git a/src/tcp.c b/src/tcp.c
index e84db84..f001206 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -71,6 +71,7 @@ static luaL_Reg tcp_methods[] = {
 
 /* socket option handlers */
 static t_opt optget[] = {
+    {"bindtodevice", opt_get_bindtodevice},
     {"keepalive",   opt_get_keepalive},
     {"reuseaddr",   opt_get_reuseaddr},
     {"reuseport",   opt_get_reuseport},
@@ -92,6 +93,7 @@ static t_opt optget[] = {
 };
 
 static t_opt optset[] = {
+    {"bindtodevice", opt_set_bindtodevice},
     {"keepalive",   opt_set_keepalive},
     {"reuseaddr",   opt_set_reuseaddr},
     {"reuseport",   opt_set_reuseport},

From 0bc8c56043e9fee5403516c62618b7d3acc5508a Mon Sep 17 00:00:00 2001
From: leso-kn <info@lesosoftware.com>
Date: Mon, 23 Oct 2023 21:35:10 +0200
Subject: [PATCH 58/62] fix(core): Disable SO_BINDTODEVICE on windows

Co-authored-by: Sewbacca <sebastian.kalus@kolabnow.com>
---
 src/options.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/options.c b/src/options.c
index 3856797..6581cae 100644
--- a/src/options.c
+++ b/src/options.c
@@ -58,7 +58,7 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
 /* binds socket to network interface */
 int opt_set_bindtodevice(lua_State *L, p_socket ps)
 {
-#ifdef __APPLE__
+#if defined(__APPLE__) || defined(__WIN32__) || defined(_MSC_VER)
     return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
 #else
     const char *dev = luaL_checkstring(L, 3);
@@ -68,7 +68,7 @@ int opt_set_bindtodevice(lua_State *L, p_socket ps)
 
 int opt_get_bindtodevice(lua_State *L, p_socket ps)
 {
-#ifdef __APPLE__
+#if defined(__APPLE__) || defined(__WIN32__) || defined(_MSC_VER)
     return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
 #else
     char dev[IFNAMSIZ];

From 708e50f8e640540198a24798b1bacd349f3c11dd Mon Sep 17 00:00:00 2001
From: leso-kn <info@lesosoftware.com>
Date: Fri, 27 Oct 2023 11:34:39 +0200
Subject: [PATCH 59/62] refactor(core): Replace check for SO_BINDTODEVICE
 support with platform independent version

---
 src/options.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/options.c b/src/options.c
index 6581cae..9dea6bd 100644
--- a/src/options.c
+++ b/src/options.c
@@ -58,7 +58,7 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
 /* binds socket to network interface */
 int opt_set_bindtodevice(lua_State *L, p_socket ps)
 {
-#if defined(__APPLE__) || defined(__WIN32__) || defined(_MSC_VER)
+#ifndef SO_BINDTODEVICE
     return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
 #else
     const char *dev = luaL_checkstring(L, 3);
@@ -68,7 +68,7 @@ int opt_set_bindtodevice(lua_State *L, p_socket ps)
 
 int opt_get_bindtodevice(lua_State *L, p_socket ps)
 {
-#if defined(__APPLE__) || defined(__WIN32__) || defined(_MSC_VER)
+#ifndef SO_BINDTODEVICE
     return luaL_error(L, "SO_BINDTODEVICE is not supported on this operating system");
 #else
     char dev[IFNAMSIZ];

From 9c6195ea629077bd7f6bf73e3e9991c89ec5ba7e Mon Sep 17 00:00:00 2001
From: leso-kn <info@lesosoftware.com>
Date: Fri, 27 Oct 2023 19:31:18 +0200
Subject: [PATCH 60/62] ci: Enable windows build

---
 .github/workflows/build.yml | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ee6e1d4..432bafb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,22 +13,27 @@ jobs:
       fail-fast: false
       matrix:
         luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
-        platform: [ "ubuntu-20.04", "macos-11" ] # "windows-2022" not supported by gh-actions-lua
+        platform: [ "ubuntu-20.04", "macos-11", "windows-2022" ]
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+      - name: Setup ’msvc’
+        uses: ilammy/msvc-dev-cmd@v1
+        if: ${{ !startsWith(matrix.luaVersion, 'luajit') }}
       - name: Setup ‘lua’
-        uses: leafo/gh-actions-lua@v9
+        uses: leso-kn/gh-actions-lua@v11-staging
         with:
           luaVersion: ${{ matrix.luaVersion }}
       - name: Setup ‘luarocks’
-        uses: leafo/gh-actions-luarocks@v4
+        uses: hishamhm/gh-actions-luarocks@master
       - name: Make and install
         run: |
-          export DEBUG=DEBUG
           luarocks make -- luasocket-scm-3.rockspec
+        env:
+          DEBUG: DEBUG
       - name: Run regression tests
+        shell: bash
         run: |
           cd test
           lua hello.lua

From 64c9d531df0efc3f4e85be6d69e5695831993430 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 8 Nov 2023 13:08:10 +0300
Subject: [PATCH 61/62] ci: Identify CI jobs better and skip irrelevant
 platform specific steps

---
 .github/workflows/build.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 432bafb..6d119d0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    name: Test build on ${{ matrix.platform }}
+    name: Test ${{ matrix.luaVersion }} on ${{ matrix.platform }}
     strategy:
       fail-fast: false
       matrix:
@@ -17,10 +17,10 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup ’msvc’
+        if: ${{ startsWith(matrix.platform, 'windows') && !startsWith(matrix.luaVersion, 'luajit') }}
         uses: ilammy/msvc-dev-cmd@v1
-        if: ${{ !startsWith(matrix.luaVersion, 'luajit') }}
       - name: Setup ‘lua’
         uses: leso-kn/gh-actions-lua@v11-staging
         with:

From 43a97b7f0053313b43906371dbdc226271e6c8ab Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Wed, 8 Nov 2023 13:14:04 +0300
Subject: [PATCH 62/62] ci: Update Luacheck to v1+, use newer Ubuntu runner
 images

---
 .github/workflows/build.yml    | 2 +-
 .github/workflows/luacheck.yml | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6d119d0..49c2c73 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
-        platform: [ "ubuntu-20.04", "macos-11", "windows-2022" ]
+        platform: [ "ubuntu-22.04", "macos-11", "windows-2022" ]
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
diff --git a/.github/workflows/luacheck.yml b/.github/workflows/luacheck.yml
index 2f20456..9cb784c 100644
--- a/.github/workflows/luacheck.yml
+++ b/.github/workflows/luacheck.yml
@@ -5,9 +5,9 @@ on: [push, pull_request]
 jobs:
 
   luacheck:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Luacheck
-        uses: lunarmodules/luacheck@v0
+        uses: lunarmodules/luacheck@v1