mirror of
https://github.com/brunoos/luasec.git
synced 2024-10-05 01:56:39 +02:00
Remove embedded luasocket
This commit is contained in:
parent
063e8a8a5c
commit
8be4741154
@ -6,7 +6,7 @@ OBJS= \
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context.o \
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context.o \
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ssl.o
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ssl.o
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LIBS=-lssl -lcrypto -lluasocket
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LIBS=-lssl -lcrypto
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WARN=-Wall -pedantic
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WARN=-Wall -pedantic
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@ -46,14 +46,10 @@ bsd:
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macosx:
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macosx:
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@$(MAKE) $(CMOD) MYCFLAGS="$(MAC_CFLAGS)" MYLDFLAGS="$(MAC_LDFLAGS)" MYENV="$(MAC_ENV)" EXTRA="$(EXTRA)"
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@$(MAKE) $(CMOD) MYCFLAGS="$(MAC_CFLAGS)" MYLDFLAGS="$(MAC_LDFLAGS)" MYENV="$(MAC_ENV)" EXTRA="$(EXTRA)"
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luasocket:
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@cd luasocket && $(MAKE)
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$(CMOD): $(EXTRA) $(OBJS)
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$(CMOD): $(EXTRA) $(OBJS)
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$(LD) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
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$(LD) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
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clean:
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clean:
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cd luasocket && $(MAKE) clean
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rm -f $(OBJS) $(CMOD)
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rm -f $(OBJS) $(CMOD)
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x509.o: x509.c x509.h config.h
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x509.o: x509.c x509.h config.h
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@ -1,26 +0,0 @@
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OBJS= \
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io.o \
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buffer.o \
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timeout.o \
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usocket.o
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CC ?= cc
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CFLAGS += $(MYCFLAGS) -DLUASOCKET_DEBUG
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AR := ar rcu
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RANLIB ?= ranlib
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.PHONY: all clean
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all: libluasocket.a
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libluasocket.a: $(OBJS)
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$(AR) $@ $(OBJS)
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$(RANLIB) $@
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clean:
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rm -f $(OBJS) libluasocket.a
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buffer.o: buffer.c buffer.h io.h timeout.h
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io.o: io.c io.h timeout.h
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timeout.o: timeout.c timeout.h
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usocket.o: usocket.c socket.h io.h timeout.h usocket.h
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@ -1,276 +0,0 @@
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/*=========================================================================*\
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* Input/Output interface for Lua programs
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* LuaSocket toolkit
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\*=========================================================================*/
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#include "lua.h"
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#include "lauxlib.h"
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#include "buffer.h"
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/*=========================================================================*\
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* Internal function prototypes
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\*=========================================================================*/
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static int recvraw(p_buffer buf, size_t wanted, luaL_Buffer *b);
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static int recvline(p_buffer buf, luaL_Buffer *b);
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static int recvall(p_buffer buf, luaL_Buffer *b);
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static int buffer_get(p_buffer buf, const char **data, size_t *count);
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static void buffer_skip(p_buffer buf, size_t count);
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static int sendraw(p_buffer buf, const char *data, size_t count, size_t *sent);
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/* min and max macros */
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#ifndef MIN
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#define MIN(x, y) ((x) < (y) ? x : y)
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#endif
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#ifndef MAX
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#define MAX(x, y) ((x) > (y) ? x : y)
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#endif
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/*=========================================================================*\
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* Exported functions
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\*=========================================================================*/
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/*-------------------------------------------------------------------------*\
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* Initializes module
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\*-------------------------------------------------------------------------*/
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int buffer_open(lua_State *L) {
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(void) L;
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return 0;
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}
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/*-------------------------------------------------------------------------*\
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* Initializes C structure
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\*-------------------------------------------------------------------------*/
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void buffer_init(p_buffer buf, p_io io, p_timeout tm) {
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buf->first = buf->last = 0;
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buf->io = io;
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buf->tm = tm;
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buf->received = buf->sent = 0;
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buf->birthday = timeout_gettime();
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}
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/*-------------------------------------------------------------------------*\
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* object:getstats() interface
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\*-------------------------------------------------------------------------*/
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int buffer_meth_getstats(lua_State *L, p_buffer buf) {
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lua_pushnumber(L, (lua_Number) buf->received);
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lua_pushnumber(L, (lua_Number) buf->sent);
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lua_pushnumber(L, timeout_gettime() - buf->birthday);
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return 3;
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}
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/*-------------------------------------------------------------------------*\
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* object:setstats() interface
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\*-------------------------------------------------------------------------*/
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int buffer_meth_setstats(lua_State *L, p_buffer buf) {
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buf->received = (long) luaL_optnumber(L, 2, (lua_Number) buf->received);
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buf->sent = (long) luaL_optnumber(L, 3, (lua_Number) buf->sent);
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if (lua_isnumber(L, 4)) buf->birthday = timeout_gettime() - lua_tonumber(L, 4);
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lua_pushnumber(L, 1);
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return 1;
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}
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/*-------------------------------------------------------------------------*\
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* object:send() interface
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\*-------------------------------------------------------------------------*/
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int buffer_meth_send(lua_State *L, p_buffer buf) {
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int top = lua_gettop(L);
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int err = IO_DONE;
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size_t size = 0, sent = 0;
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const char *data = luaL_checklstring(L, 2, &size);
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long start = (long) luaL_optnumber(L, 3, 1);
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long end = (long) luaL_optnumber(L, 4, -1);
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#ifdef LUASOCKET_DEBUG
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p_timeout tm = timeout_markstart(buf->tm);
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#endif
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if (start < 0) start = (long) (size+start+1);
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if (end < 0) end = (long) (size+end+1);
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if (start < 1) start = (long) 1;
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if (end > (long) size) end = (long) size;
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if (start <= end) err = sendraw(buf, data+start-1, end-start+1, &sent);
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/* check if there was an error */
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if (err != IO_DONE) {
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lua_pushnil(L);
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lua_pushstring(L, buf->io->error(buf->io->ctx, err));
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lua_pushnumber(L, (lua_Number) (sent+start-1));
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} else {
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lua_pushnumber(L, (lua_Number) (sent+start-1));
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lua_pushnil(L);
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lua_pushnil(L);
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}
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#ifdef LUASOCKET_DEBUG
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/* push time elapsed during operation as the last return value */
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lua_pushnumber(L, timeout_gettime() - timeout_getstart(tm));
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#endif
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return lua_gettop(L) - top;
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}
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/*-------------------------------------------------------------------------*\
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* object:receive() interface
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\*-------------------------------------------------------------------------*/
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int buffer_meth_receive(lua_State *L, p_buffer buf) {
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int err = IO_DONE, top = lua_gettop(L);
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luaL_Buffer b;
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size_t size;
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const char *part = luaL_optlstring(L, 3, "", &size);
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#ifdef LUASOCKET_DEBUG
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p_timeout tm = timeout_markstart(buf->tm);
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#endif
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/* initialize buffer with optional extra prefix
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* (useful for concatenating previous partial results) */
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luaL_buffinit(L, &b);
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luaL_addlstring(&b, part, size);
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/* receive new patterns */
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if (!lua_isnumber(L, 2)) {
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const char *p= luaL_optstring(L, 2, "*l");
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if (p[0] == '*' && p[1] == 'l') err = recvline(buf, &b);
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else if (p[0] == '*' && p[1] == 'a') err = recvall(buf, &b);
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else luaL_argcheck(L, 0, 2, "invalid receive pattern");
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/* get a fixed number of bytes (minus what was already partially
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* received) */
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} else {
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double n = lua_tonumber(L, 2);
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size_t wanted = (size_t) n;
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luaL_argcheck(L, n >= 0, 2, "invalid receive pattern");
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if (size == 0 || wanted > size)
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err = recvraw(buf, wanted-size, &b);
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}
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/* check if there was an error */
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if (err != IO_DONE) {
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/* we can't push anyting in the stack before pushing the
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* contents of the buffer. this is the reason for the complication */
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luaL_pushresult(&b);
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lua_pushstring(L, buf->io->error(buf->io->ctx, err));
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lua_pushvalue(L, -2);
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lua_pushnil(L);
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lua_replace(L, -4);
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} else {
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luaL_pushresult(&b);
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lua_pushnil(L);
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lua_pushnil(L);
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}
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#ifdef LUASOCKET_DEBUG
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/* push time elapsed during operation as the last return value */
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lua_pushnumber(L, timeout_gettime() - timeout_getstart(tm));
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#endif
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return lua_gettop(L) - top;
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}
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/*-------------------------------------------------------------------------*\
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* Determines if there is any data in the read buffer
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\*-------------------------------------------------------------------------*/
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int buffer_isempty(p_buffer buf) {
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return buf->first >= buf->last;
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}
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/*=========================================================================*\
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* Internal functions
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\*=========================================================================*/
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/*-------------------------------------------------------------------------*\
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* Sends a block of data (unbuffered)
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\*-------------------------------------------------------------------------*/
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#define STEPSIZE 8192
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static int sendraw(p_buffer buf, const char *data, size_t count, size_t *sent) {
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p_io io = buf->io;
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p_timeout tm = buf->tm;
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size_t total = 0;
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int err = IO_DONE;
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while (total < count && err == IO_DONE) {
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size_t done = 0;
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size_t step = (count-total <= STEPSIZE)? count-total: STEPSIZE;
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err = io->send(io->ctx, data+total, step, &done, tm);
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total += done;
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}
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*sent = total;
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buf->sent += total;
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return err;
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}
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/*-------------------------------------------------------------------------*\
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* Reads a fixed number of bytes (buffered)
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\*-------------------------------------------------------------------------*/
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static int recvraw(p_buffer buf, size_t wanted, luaL_Buffer *b) {
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int err = IO_DONE;
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size_t total = 0;
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while (err == IO_DONE) {
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size_t count; const char *data;
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err = buffer_get(buf, &data, &count);
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count = MIN(count, wanted - total);
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luaL_addlstring(b, data, count);
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buffer_skip(buf, count);
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total += count;
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if (total >= wanted) break;
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}
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return err;
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}
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/*-------------------------------------------------------------------------*\
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* Reads everything until the connection is closed (buffered)
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\*-------------------------------------------------------------------------*/
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static int recvall(p_buffer buf, luaL_Buffer *b) {
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int err = IO_DONE;
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size_t total = 0;
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while (err == IO_DONE) {
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const char *data; size_t count;
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err = buffer_get(buf, &data, &count);
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total += count;
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luaL_addlstring(b, data, count);
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buffer_skip(buf, count);
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}
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if (err == IO_CLOSED) {
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if (total > 0) return IO_DONE;
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else return IO_CLOSED;
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} else return err;
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}
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/*-------------------------------------------------------------------------*\
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* Reads a line terminated by a CR LF pair or just by a LF. The CR and LF
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* are not returned by the function and are discarded from the buffer
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\*-------------------------------------------------------------------------*/
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static int recvline(p_buffer buf, luaL_Buffer *b) {
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int err = IO_DONE;
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while (err == IO_DONE) {
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size_t count, pos; const char *data;
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err = buffer_get(buf, &data, &count);
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pos = 0;
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while (pos < count && data[pos] != '\n') {
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/* we ignore all \r's */
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if (data[pos] != '\r') luaL_addchar(b, data[pos]);
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pos++;
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}
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if (pos < count) { /* found '\n' */
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buffer_skip(buf, pos+1); /* skip '\n' too */
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break; /* we are done */
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} else /* reached the end of the buffer */
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buffer_skip(buf, pos);
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}
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return err;
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}
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/*-------------------------------------------------------------------------*\
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* Skips a given number of bytes from read buffer. No data is read from the
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* transport layer
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\*-------------------------------------------------------------------------*/
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static void buffer_skip(p_buffer buf, size_t count) {
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buf->received += count;
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buf->first += count;
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if (buffer_isempty(buf))
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buf->first = buf->last = 0;
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}
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/*-------------------------------------------------------------------------*\
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* Return any data available in buffer, or get more data from transport layer
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* if buffer is empty
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\*-------------------------------------------------------------------------*/
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static int buffer_get(p_buffer buf, const char **data, size_t *count) {
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int err = IO_DONE;
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p_io io = buf->io;
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p_timeout tm = buf->tm;
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if (buffer_isempty(buf)) {
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size_t got;
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err = io->recv(io->ctx, buf->data, BUF_SIZE, &got, tm);
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buf->first = 0;
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buf->last = got;
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}
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*count = buf->last - buf->first;
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*data = buf->data + buf->first;
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return err;
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}
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@ -1,45 +0,0 @@
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#ifndef BUF_H
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#define BUF_H
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/*=========================================================================*\
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* Input/Output interface for Lua programs
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* LuaSocket toolkit
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*
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* Line patterns require buffering. Reading one character at a time involves
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* too many system calls and is very slow. This module implements the
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* LuaSocket interface for input/output on connected objects, as seen by
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* Lua programs.
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*
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* Input is buffered. Output is *not* buffered because there was no simple
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* way of making sure the buffered output data would ever be sent.
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*
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* The module is built on top of the I/O abstraction defined in io.h and the
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* timeout management is done with the timeout.h interface.
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\*=========================================================================*/
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#include "lua.h"
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#include "io.h"
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#include "timeout.h"
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/* buffer size in bytes */
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#define BUF_SIZE 8192
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/* buffer control structure */
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typedef struct t_buffer_ {
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double birthday; /* throttle support info: creation time, */
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size_t sent, received; /* bytes sent, and bytes received */
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p_io io; /* IO driver used for this buffer */
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p_timeout tm; /* timeout management for this buffer */
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size_t first, last; /* index of first and last bytes of stored data */
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char data[BUF_SIZE]; /* storage space for buffer data */
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} t_buffer;
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typedef t_buffer *p_buffer;
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int buffer_open(lua_State *L);
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void buffer_init(p_buffer buf, p_io io, p_timeout tm);
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int buffer_meth_send(lua_State *L, p_buffer buf);
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int buffer_meth_receive(lua_State *L, p_buffer buf);
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int buffer_meth_getstats(lua_State *L, p_buffer buf);
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int buffer_meth_setstats(lua_State *L, p_buffer buf);
|
|
||||||
int buffer_isempty(p_buffer buf);
|
|
||||||
|
|
||||||
#endif /* BUF_H */
|
|
@ -1,30 +0,0 @@
|
|||||||
/*=========================================================================*\
|
|
||||||
* Input/Output abstraction
|
|
||||||
* LuaSocket toolkit
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include "io.h"
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Exported functions
|
|
||||||
\*=========================================================================*/
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Initializes C structure
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void io_init(p_io io, p_send send, p_recv recv, p_error error, void *ctx) {
|
|
||||||
io->send = send;
|
|
||||||
io->recv = recv;
|
|
||||||
io->error = error;
|
|
||||||
io->ctx = ctx;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* I/O error strings
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
const char *io_strerror(int err) {
|
|
||||||
switch (err) {
|
|
||||||
case IO_DONE: return NULL;
|
|
||||||
case IO_CLOSED: return "closed";
|
|
||||||
case IO_TIMEOUT: return "timeout";
|
|
||||||
default: return "unknown error";
|
|
||||||
}
|
|
||||||
}
|
|
@ -1,65 +0,0 @@
|
|||||||
#ifndef IO_H
|
|
||||||
#define IO_H
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Input/Output abstraction
|
|
||||||
* LuaSocket toolkit
|
|
||||||
*
|
|
||||||
* This module defines the interface that LuaSocket expects from the
|
|
||||||
* transport layer for streamed input/output. The idea is that if any
|
|
||||||
* transport implements this interface, then the buffer.c functions
|
|
||||||
* automatically work on it.
|
|
||||||
*
|
|
||||||
* The module socket.h implements this interface, and thus the module tcp.h
|
|
||||||
* is very simple.
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include <stdio.h>
|
|
||||||
#include "lua.h"
|
|
||||||
|
|
||||||
#include "timeout.h"
|
|
||||||
|
|
||||||
/* IO error codes */
|
|
||||||
enum {
|
|
||||||
IO_DONE = 0, /* operation completed successfully */
|
|
||||||
IO_TIMEOUT = -1, /* operation timed out */
|
|
||||||
IO_CLOSED = -2, /* the connection has been closed */
|
|
||||||
IO_UNKNOWN = -3
|
|
||||||
};
|
|
||||||
|
|
||||||
/* interface to error message function */
|
|
||||||
typedef const char *(*p_error) (
|
|
||||||
void *ctx, /* context needed by send */
|
|
||||||
int err /* error code */
|
|
||||||
);
|
|
||||||
|
|
||||||
/* interface to send function */
|
|
||||||
typedef int (*p_send) (
|
|
||||||
void *ctx, /* context needed by send */
|
|
||||||
const char *data, /* pointer to buffer with data to send */
|
|
||||||
size_t count, /* number of bytes to send from buffer */
|
|
||||||
size_t *sent, /* number of bytes sent uppon return */
|
|
||||||
p_timeout tm /* timeout control */
|
|
||||||
);
|
|
||||||
|
|
||||||
/* interface to recv function */
|
|
||||||
typedef int (*p_recv) (
|
|
||||||
void *ctx, /* context needed by recv */
|
|
||||||
char *data, /* pointer to buffer where data will be writen */
|
|
||||||
size_t count, /* number of bytes to receive into buffer */
|
|
||||||
size_t *got, /* number of bytes received uppon return */
|
|
||||||
p_timeout tm /* timeout control */
|
|
||||||
);
|
|
||||||
|
|
||||||
/* IO driver definition */
|
|
||||||
typedef struct t_io_ {
|
|
||||||
void *ctx; /* context needed by send/recv */
|
|
||||||
p_send send; /* send function pointer */
|
|
||||||
p_recv recv; /* receive function pointer */
|
|
||||||
p_error error; /* strerror function */
|
|
||||||
} t_io;
|
|
||||||
typedef t_io *p_io;
|
|
||||||
|
|
||||||
void io_init(p_io io, p_send send, p_recv recv, p_error error, void *ctx);
|
|
||||||
const char *io_strerror(int err);
|
|
||||||
|
|
||||||
#endif /* IO_H */
|
|
||||||
|
|
@ -1,78 +0,0 @@
|
|||||||
#ifndef SOCKET_H
|
|
||||||
#define SOCKET_H
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Socket compatibilization module
|
|
||||||
* LuaSocket toolkit
|
|
||||||
*
|
|
||||||
* BSD Sockets and WinSock are similar, but there are a few irritating
|
|
||||||
* differences. Also, not all *nix platforms behave the same. This module
|
|
||||||
* (and the associated usocket.h and wsocket.h) factor these differences and
|
|
||||||
* creates a interface compatible with the io.h module.
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include "io.h"
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Platform specific compatibilization
|
|
||||||
\*=========================================================================*/
|
|
||||||
#ifdef _WIN32
|
|
||||||
#include "wsocket.h"
|
|
||||||
#else
|
|
||||||
#include "usocket.h"
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* The connect and accept functions accept a timeout and their
|
|
||||||
* implementations are somewhat complicated. We chose to move
|
|
||||||
* the timeout control into this module for these functions in
|
|
||||||
* order to simplify the modules that use them.
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include "timeout.h"
|
|
||||||
|
|
||||||
/* we are lazy... */
|
|
||||||
typedef struct sockaddr SA;
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Functions bellow implement a comfortable platform independent
|
|
||||||
* interface to sockets
|
|
||||||
\*=========================================================================*/
|
|
||||||
int socket_open(void);
|
|
||||||
int socket_close(void);
|
|
||||||
void socket_destroy(p_socket ps);
|
|
||||||
void socket_shutdown(p_socket ps, int how);
|
|
||||||
int socket_sendto(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, SA *addr, socklen_t addr_len, p_timeout tm);
|
|
||||||
int socket_recvfrom(p_socket ps, char *data, size_t count,
|
|
||||||
size_t *got, SA *addr, socklen_t *addr_len, p_timeout tm);
|
|
||||||
|
|
||||||
void socket_setnonblocking(p_socket ps);
|
|
||||||
void socket_setblocking(p_socket ps);
|
|
||||||
|
|
||||||
int socket_waitfd(p_socket ps, int sw, p_timeout tm);
|
|
||||||
int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
|
|
||||||
p_timeout tm);
|
|
||||||
|
|
||||||
int socket_connect(p_socket ps, SA *addr, socklen_t addr_len, p_timeout tm);
|
|
||||||
int socket_create(p_socket ps, int domain, int type, int protocol);
|
|
||||||
int socket_bind(p_socket ps, SA *addr, socklen_t addr_len);
|
|
||||||
int socket_listen(p_socket ps, int backlog);
|
|
||||||
int socket_accept(p_socket ps, p_socket pa, SA *addr,
|
|
||||||
socklen_t *addr_len, p_timeout tm);
|
|
||||||
|
|
||||||
const char *socket_hoststrerror(int err);
|
|
||||||
const char *socket_gaistrerror(int err);
|
|
||||||
const char *socket_strerror(int err);
|
|
||||||
|
|
||||||
/* these are perfect to use with the io abstraction module
|
|
||||||
and the buffered input module */
|
|
||||||
int socket_send(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, p_timeout tm);
|
|
||||||
int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm);
|
|
||||||
int socket_write(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, p_timeout tm);
|
|
||||||
int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm);
|
|
||||||
const char *socket_ioerror(p_socket ps, int err);
|
|
||||||
|
|
||||||
int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp);
|
|
||||||
int socket_gethostbyname(const char *addr, struct hostent **hp);
|
|
||||||
|
|
||||||
#endif /* SOCKET_H */
|
|
@ -1,220 +0,0 @@
|
|||||||
/*=========================================================================*\
|
|
||||||
* Timeout management functions
|
|
||||||
* LuaSocket toolkit
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include <stdio.h>
|
|
||||||
#include <limits.h>
|
|
||||||
#include <float.h>
|
|
||||||
|
|
||||||
#include "lua.h"
|
|
||||||
#include "lauxlib.h"
|
|
||||||
|
|
||||||
#include "timeout.h"
|
|
||||||
|
|
||||||
#ifdef _WIN32
|
|
||||||
#include <windows.h>
|
|
||||||
#else
|
|
||||||
#include <time.h>
|
|
||||||
#include <sys/time.h>
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* min and max macros */
|
|
||||||
#ifndef MIN
|
|
||||||
#define MIN(x, y) ((x) < (y) ? x : y)
|
|
||||||
#endif
|
|
||||||
#ifndef MAX
|
|
||||||
#define MAX(x, y) ((x) > (y) ? x : y)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Internal function prototypes
|
|
||||||
\*=========================================================================*/
|
|
||||||
static int timeout_lua_gettime(lua_State *L);
|
|
||||||
static int timeout_lua_sleep(lua_State *L);
|
|
||||||
|
|
||||||
static luaL_Reg func[] = {
|
|
||||||
{ "gettime", timeout_lua_gettime },
|
|
||||||
{ "sleep", timeout_lua_sleep },
|
|
||||||
{ NULL, NULL }
|
|
||||||
};
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Exported functions.
|
|
||||||
\*=========================================================================*/
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Initialize structure
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void timeout_init(p_timeout tm, double block, double total) {
|
|
||||||
tm->block = block;
|
|
||||||
tm->total = total;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Determines how much time we have left for the next system call,
|
|
||||||
* if the previous call was successful
|
|
||||||
* Input
|
|
||||||
* tm: timeout control structure
|
|
||||||
* Returns
|
|
||||||
* the number of ms left or -1 if there is no time limit
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
double timeout_get(p_timeout tm) {
|
|
||||||
if (tm->block < 0.0 && tm->total < 0.0) {
|
|
||||||
return -1;
|
|
||||||
} else if (tm->block < 0.0) {
|
|
||||||
double t = tm->total - timeout_gettime() + tm->start;
|
|
||||||
return MAX(t, 0.0);
|
|
||||||
} else if (tm->total < 0.0) {
|
|
||||||
return tm->block;
|
|
||||||
} else {
|
|
||||||
double t = tm->total - timeout_gettime() + tm->start;
|
|
||||||
return MIN(tm->block, MAX(t, 0.0));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Returns time since start of operation
|
|
||||||
* Input
|
|
||||||
* tm: timeout control structure
|
|
||||||
* Returns
|
|
||||||
* start field of structure
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
double timeout_getstart(p_timeout tm) {
|
|
||||||
return tm->start;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Determines how much time we have left for the next system call,
|
|
||||||
* if the previous call was a failure
|
|
||||||
* Input
|
|
||||||
* tm: timeout control structure
|
|
||||||
* Returns
|
|
||||||
* the number of ms left or -1 if there is no time limit
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
double timeout_getretry(p_timeout tm) {
|
|
||||||
if (tm->block < 0.0 && tm->total < 0.0) {
|
|
||||||
return -1;
|
|
||||||
} else if (tm->block < 0.0) {
|
|
||||||
double t = tm->total - timeout_gettime() + tm->start;
|
|
||||||
return MAX(t, 0.0);
|
|
||||||
} else if (tm->total < 0.0) {
|
|
||||||
double t = tm->block - timeout_gettime() + tm->start;
|
|
||||||
return MAX(t, 0.0);
|
|
||||||
} else {
|
|
||||||
double t = tm->total - timeout_gettime() + tm->start;
|
|
||||||
return MIN(tm->block, MAX(t, 0.0));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Marks the operation start time in structure
|
|
||||||
* Input
|
|
||||||
* tm: timeout control structure
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
p_timeout timeout_markstart(p_timeout tm) {
|
|
||||||
tm->start = timeout_gettime();
|
|
||||||
return tm;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Gets time in s, relative to January 1, 1970 (UTC)
|
|
||||||
* Returns
|
|
||||||
* time in s.
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
#ifdef _WIN32
|
|
||||||
double timeout_gettime(void) {
|
|
||||||
FILETIME ft;
|
|
||||||
double t;
|
|
||||||
GetSystemTimeAsFileTime(&ft);
|
|
||||||
/* Windows file time (time since January 1, 1601 (UTC)) */
|
|
||||||
t = ft.dwLowDateTime/1.0e7 + ft.dwHighDateTime*(4294967296.0/1.0e7);
|
|
||||||
/* convert to Unix Epoch time (time since January 1, 1970 (UTC)) */
|
|
||||||
return (t - 11644473600.0);
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
double timeout_gettime(void) {
|
|
||||||
struct timeval v;
|
|
||||||
gettimeofday(&v, (struct timezone *) NULL);
|
|
||||||
/* Unix Epoch time (time since January 1, 1970 (UTC)) */
|
|
||||||
return v.tv_sec + v.tv_usec/1.0e6;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Initializes module
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int timeout_open(lua_State *L) {
|
|
||||||
#if LUA_VERSION_NUM > 501 && !defined(LUA_COMPAT_MODULE)
|
|
||||||
luaL_setfuncs(L, func, 0);
|
|
||||||
#else
|
|
||||||
luaL_openlib(L, NULL, func, 0);
|
|
||||||
#endif
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Sets timeout values for IO operations
|
|
||||||
* Lua Input: base, time [, mode]
|
|
||||||
* time: time out value in seconds
|
|
||||||
* mode: "b" for block timeout, "t" for total timeout. (default: b)
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int timeout_meth_settimeout(lua_State *L, p_timeout tm) {
|
|
||||||
double t = luaL_optnumber(L, 2, -1);
|
|
||||||
const char *mode = luaL_optstring(L, 3, "b");
|
|
||||||
switch (*mode) {
|
|
||||||
case 'b':
|
|
||||||
tm->block = t;
|
|
||||||
break;
|
|
||||||
case 'r': case 't':
|
|
||||||
tm->total = t;
|
|
||||||
break;
|
|
||||||
default:
|
|
||||||
luaL_argcheck(L, 0, 3, "invalid timeout mode");
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
lua_pushnumber(L, 1);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Test support functions
|
|
||||||
\*=========================================================================*/
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Returns the time the system has been up, in secconds.
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
static int timeout_lua_gettime(lua_State *L)
|
|
||||||
{
|
|
||||||
lua_pushnumber(L, timeout_gettime());
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Sleep for n seconds.
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
#ifdef _WIN32
|
|
||||||
int timeout_lua_sleep(lua_State *L)
|
|
||||||
{
|
|
||||||
double n = luaL_checknumber(L, 1);
|
|
||||||
if (n < 0.0) n = 0.0;
|
|
||||||
if (n < DBL_MAX/1000.0) n *= 1000.0;
|
|
||||||
if (n > INT_MAX) n = INT_MAX;
|
|
||||||
Sleep((int)n);
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
int timeout_lua_sleep(lua_State *L)
|
|
||||||
{
|
|
||||||
double n = luaL_checknumber(L, 1);
|
|
||||||
struct timespec t, r;
|
|
||||||
if (n < 0.0) n = 0.0;
|
|
||||||
if (n > INT_MAX) n = INT_MAX;
|
|
||||||
t.tv_sec = (int) n;
|
|
||||||
n -= t.tv_sec;
|
|
||||||
t.tv_nsec = (int) (n * 1000000000);
|
|
||||||
if (t.tv_nsec >= 1000000000) t.tv_nsec = 999999999;
|
|
||||||
while (nanosleep(&t, &r) != 0) {
|
|
||||||
t.tv_sec = r.tv_sec;
|
|
||||||
t.tv_nsec = r.tv_nsec;
|
|
||||||
}
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
#endif
|
|
@ -1,28 +0,0 @@
|
|||||||
#ifndef TIMEOUT_H
|
|
||||||
#define TIMEOUT_H
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Timeout management functions
|
|
||||||
* LuaSocket toolkit
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include "lua.h"
|
|
||||||
|
|
||||||
/* timeout control structure */
|
|
||||||
typedef struct t_timeout_ {
|
|
||||||
double block; /* maximum time for blocking calls */
|
|
||||||
double total; /* total number of miliseconds for operation */
|
|
||||||
double start; /* time of start of operation */
|
|
||||||
} t_timeout;
|
|
||||||
typedef t_timeout *p_timeout;
|
|
||||||
|
|
||||||
int timeout_open(lua_State *L);
|
|
||||||
void timeout_init(p_timeout tm, double block, double total);
|
|
||||||
double timeout_get(p_timeout tm);
|
|
||||||
double timeout_getretry(p_timeout tm);
|
|
||||||
p_timeout timeout_markstart(p_timeout tm);
|
|
||||||
double timeout_getstart(p_timeout tm);
|
|
||||||
double timeout_gettime(void);
|
|
||||||
int timeout_meth_settimeout(lua_State *L, p_timeout tm);
|
|
||||||
|
|
||||||
#define timeout_iszero(tm) ((tm)->block == 0.0)
|
|
||||||
|
|
||||||
#endif /* TIMEOUT_H */
|
|
@ -1,439 +0,0 @@
|
|||||||
/*=========================================================================*\
|
|
||||||
* Socket compatibilization module for Unix
|
|
||||||
* LuaSocket toolkit
|
|
||||||
*
|
|
||||||
* The code is now interrupt-safe.
|
|
||||||
* The penalty of calling select to avoid busy-wait is only paid when
|
|
||||||
* the I/O call fail in the first place.
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include <string.h>
|
|
||||||
#include <signal.h>
|
|
||||||
|
|
||||||
#include "socket.h"
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Wait for readable/writable/connected socket with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
#ifndef SOCKET_SELECT
|
|
||||||
int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
|
|
||||||
int ret;
|
|
||||||
struct pollfd pfd;
|
|
||||||
pfd.fd = *ps;
|
|
||||||
pfd.events = sw;
|
|
||||||
pfd.revents = 0;
|
|
||||||
if (timeout_iszero(tm)) return IO_TIMEOUT; /* optimize timeout == 0 case */
|
|
||||||
do {
|
|
||||||
int t = (int)(timeout_getretry(tm)*1e3);
|
|
||||||
ret = poll(&pfd, 1, t >= 0? t: -1);
|
|
||||||
} while (ret == -1 && errno == EINTR);
|
|
||||||
if (ret == -1) return errno;
|
|
||||||
if (ret == 0) return IO_TIMEOUT;
|
|
||||||
if (sw == WAITFD_C && (pfd.revents & (POLLIN|POLLERR))) return IO_CLOSED;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
#else
|
|
||||||
int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
|
|
||||||
int ret;
|
|
||||||
fd_set rfds, wfds, *rp, *wp;
|
|
||||||
struct timeval tv, *tp;
|
|
||||||
double t;
|
|
||||||
if (*ps >= FD_SETSIZE) return EINVAL;
|
|
||||||
if (timeout_iszero(tm)) return IO_TIMEOUT; /* optimize timeout == 0 case */
|
|
||||||
do {
|
|
||||||
/* must set bits within loop, because select may have modifed them */
|
|
||||||
rp = wp = NULL;
|
|
||||||
if (sw & WAITFD_R) { FD_ZERO(&rfds); FD_SET(*ps, &rfds); rp = &rfds; }
|
|
||||||
if (sw & WAITFD_W) { FD_ZERO(&wfds); FD_SET(*ps, &wfds); wp = &wfds; }
|
|
||||||
t = timeout_getretry(tm);
|
|
||||||
tp = NULL;
|
|
||||||
if (t >= 0.0) {
|
|
||||||
tv.tv_sec = (int)t;
|
|
||||||
tv.tv_usec = (int)((t-tv.tv_sec)*1.0e6);
|
|
||||||
tp = &tv;
|
|
||||||
}
|
|
||||||
ret = select(*ps+1, rp, wp, NULL, tp);
|
|
||||||
} while (ret == -1 && errno == EINTR);
|
|
||||||
if (ret == -1) return errno;
|
|
||||||
if (ret == 0) return IO_TIMEOUT;
|
|
||||||
if (sw == WAITFD_C && FD_ISSET(*ps, &rfds)) return IO_CLOSED;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
#endif
|
|
||||||
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Initializes module
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_open(void) {
|
|
||||||
/* instals a handler to ignore sigpipe or it will crash us */
|
|
||||||
signal(SIGPIPE, SIG_IGN);
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Close module
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_close(void) {
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Close and inutilize socket
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_destroy(p_socket ps) {
|
|
||||||
if (*ps != SOCKET_INVALID) {
|
|
||||||
socket_setblocking(ps);
|
|
||||||
close(*ps);
|
|
||||||
*ps = SOCKET_INVALID;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Select with timeout control
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
|
|
||||||
p_timeout tm) {
|
|
||||||
int ret;
|
|
||||||
do {
|
|
||||||
struct timeval tv;
|
|
||||||
double t = timeout_getretry(tm);
|
|
||||||
tv.tv_sec = (int) t;
|
|
||||||
tv.tv_usec = (int) ((t - tv.tv_sec) * 1.0e6);
|
|
||||||
/* timeout = 0 means no wait */
|
|
||||||
ret = select(n, rfds, wfds, efds, t >= 0.0 ? &tv: NULL);
|
|
||||||
} while (ret < 0 && errno == EINTR);
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Creates and sets up a socket
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_create(p_socket ps, int domain, int type, int protocol) {
|
|
||||||
*ps = socket(domain, type, protocol);
|
|
||||||
if (*ps != SOCKET_INVALID) return IO_DONE;
|
|
||||||
else return errno;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Binds or returns error message
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_bind(p_socket ps, SA *addr, socklen_t len) {
|
|
||||||
int err = IO_DONE;
|
|
||||||
socket_setblocking(ps);
|
|
||||||
if (bind(*ps, addr, len) < 0) err = errno;
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
*
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_listen(p_socket ps, int backlog) {
|
|
||||||
int err = IO_DONE;
|
|
||||||
socket_setblocking(ps);
|
|
||||||
if (listen(*ps, backlog)) err = errno;
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
*
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_shutdown(p_socket ps, int how) {
|
|
||||||
socket_setblocking(ps);
|
|
||||||
shutdown(*ps, how);
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Connects or returns error message
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
|
|
||||||
int err;
|
|
||||||
/* avoid calling on closed sockets */
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
/* call connect until done or failed without being interrupted */
|
|
||||||
do if (connect(*ps, addr, len) == 0) return IO_DONE;
|
|
||||||
while ((err = errno) == EINTR);
|
|
||||||
/* if connection failed immediately, return error code */
|
|
||||||
if (err != EINPROGRESS && err != EAGAIN) return err;
|
|
||||||
/* zero timeout case optimization */
|
|
||||||
if (timeout_iszero(tm)) return IO_TIMEOUT;
|
|
||||||
/* wait until we have the result of the connection attempt or timeout */
|
|
||||||
err = socket_waitfd(ps, WAITFD_C, tm);
|
|
||||||
if (err == IO_CLOSED) {
|
|
||||||
if (recv(*ps, (char *) &err, 0, 0) == 0) return IO_DONE;
|
|
||||||
else return errno;
|
|
||||||
} else return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Accept with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len, p_timeout tm) {
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
int err;
|
|
||||||
if ((*pa = accept(*ps, addr, len)) != SOCKET_INVALID) return IO_DONE;
|
|
||||||
err = errno;
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
if (err != EAGAIN && err != ECONNABORTED) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
/* can't reach here */
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Send with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_send(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err;
|
|
||||||
*sent = 0;
|
|
||||||
/* avoid making system calls on closed sockets */
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
/* loop until we send something or we give up on error */
|
|
||||||
for ( ;; ) {
|
|
||||||
long put = (long) send(*ps, data, count, 0);
|
|
||||||
/* if we sent anything, we are done */
|
|
||||||
if (put >= 0) {
|
|
||||||
*sent = put;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
/* EPIPE means the connection was closed */
|
|
||||||
if (err == EPIPE) return IO_CLOSED;
|
|
||||||
/* we call was interrupted, just try again */
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
/* if failed fatal reason, report error */
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
/* wait until we can send something or we timeout */
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
/* can't reach here */
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Sendto with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
|
|
||||||
SA *addr, socklen_t len, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err;
|
|
||||||
*sent = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
long put = (long) sendto(*ps, data, count, 0, addr, len);
|
|
||||||
if (put >= 0) {
|
|
||||||
*sent = put;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
if (err == EPIPE) return IO_CLOSED;
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Receive with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) {
|
|
||||||
int err;
|
|
||||||
*got = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
long taken = (long) recv(*ps, data, count, 0);
|
|
||||||
if (taken > 0) {
|
|
||||||
*got = taken;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
if (taken == 0) return IO_CLOSED;
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Recvfrom with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got,
|
|
||||||
SA *addr, socklen_t *len, p_timeout tm) {
|
|
||||||
int err;
|
|
||||||
*got = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
long taken = (long) recvfrom(*ps, data, count, 0, addr, len);
|
|
||||||
if (taken > 0) {
|
|
||||||
*got = taken;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
if (taken == 0) return IO_CLOSED;
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Write with timeout
|
|
||||||
*
|
|
||||||
* socket_read and socket_write are cut-n-paste of socket_send and socket_recv,
|
|
||||||
* with send/recv replaced with write/read. We can't just use write/read
|
|
||||||
* in the socket version, because behaviour when size is zero is different.
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_write(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err;
|
|
||||||
*sent = 0;
|
|
||||||
/* avoid making system calls on closed sockets */
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
/* loop until we send something or we give up on error */
|
|
||||||
for ( ;; ) {
|
|
||||||
long put = (long) write(*ps, data, count);
|
|
||||||
/* if we sent anything, we are done */
|
|
||||||
if (put >= 0) {
|
|
||||||
*sent = put;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
/* EPIPE means the connection was closed */
|
|
||||||
if (err == EPIPE) return IO_CLOSED;
|
|
||||||
/* we call was interrupted, just try again */
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
/* if failed fatal reason, report error */
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
/* wait until we can send something or we timeout */
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
/* can't reach here */
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Read with timeout
|
|
||||||
* See note for socket_write
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) {
|
|
||||||
int err;
|
|
||||||
*got = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
long taken = (long) read(*ps, data, count);
|
|
||||||
if (taken > 0) {
|
|
||||||
*got = taken;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = errno;
|
|
||||||
if (taken == 0) return IO_CLOSED;
|
|
||||||
if (err == EINTR) continue;
|
|
||||||
if (err != EAGAIN) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Put socket into blocking mode
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_setblocking(p_socket ps) {
|
|
||||||
int flags = fcntl(*ps, F_GETFL, 0);
|
|
||||||
flags &= (~(O_NONBLOCK));
|
|
||||||
fcntl(*ps, F_SETFL, flags);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Put socket into non-blocking mode
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_setnonblocking(p_socket ps) {
|
|
||||||
int flags = fcntl(*ps, F_GETFL, 0);
|
|
||||||
flags |= O_NONBLOCK;
|
|
||||||
fcntl(*ps, F_SETFL, flags);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* DNS helpers
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) {
|
|
||||||
*hp = gethostbyaddr(addr, len, AF_INET);
|
|
||||||
if (*hp) return IO_DONE;
|
|
||||||
else if (h_errno) return h_errno;
|
|
||||||
else if (errno) return errno;
|
|
||||||
else return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
int socket_gethostbyname(const char *addr, struct hostent **hp) {
|
|
||||||
*hp = gethostbyname(addr);
|
|
||||||
if (*hp) return IO_DONE;
|
|
||||||
else if (h_errno) return h_errno;
|
|
||||||
else if (errno) return errno;
|
|
||||||
else return IO_UNKNOWN;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Error translation functions
|
|
||||||
* Make sure important error messages are standard
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
const char *socket_hoststrerror(int err) {
|
|
||||||
if (err <= 0) return io_strerror(err);
|
|
||||||
switch (err) {
|
|
||||||
case HOST_NOT_FOUND: return "host not found";
|
|
||||||
default: return hstrerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_strerror(int err) {
|
|
||||||
if (err <= 0) return io_strerror(err);
|
|
||||||
switch (err) {
|
|
||||||
case EADDRINUSE: return "address already in use";
|
|
||||||
case EISCONN: return "already connected";
|
|
||||||
case EACCES: return "permission denied";
|
|
||||||
case ECONNREFUSED: return "connection refused";
|
|
||||||
case ECONNABORTED: return "closed";
|
|
||||||
case ECONNRESET: return "closed";
|
|
||||||
case ETIMEDOUT: return "timeout";
|
|
||||||
default: return strerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_ioerror(p_socket ps, int err) {
|
|
||||||
(void) ps;
|
|
||||||
return socket_strerror(err);
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_gaistrerror(int err) {
|
|
||||||
if (err == 0) return NULL;
|
|
||||||
switch (err) {
|
|
||||||
case EAI_AGAIN: return "temporary failure in name resolution";
|
|
||||||
case EAI_BADFLAGS: return "invalid value for ai_flags";
|
|
||||||
#ifdef EAI_BADHINTS
|
|
||||||
case EAI_BADHINTS: return "invalid value for hints";
|
|
||||||
#endif
|
|
||||||
case EAI_FAIL: return "non-recoverable failure in name resolution";
|
|
||||||
case EAI_FAMILY: return "ai_family not supported";
|
|
||||||
case EAI_MEMORY: return "memory allocation failure";
|
|
||||||
case EAI_NONAME:
|
|
||||||
return "host or service not provided, or not known";
|
|
||||||
case EAI_OVERFLOW: return "argument buffer overflow";
|
|
||||||
#ifdef EAI_PROTOCOL
|
|
||||||
case EAI_PROTOCOL: return "resolved protocol is unknown";
|
|
||||||
#endif
|
|
||||||
case EAI_SERVICE: return "service not supported for socket type";
|
|
||||||
case EAI_SOCKTYPE: return "ai_socktype not supported";
|
|
||||||
case EAI_SYSTEM: return strerror(errno);
|
|
||||||
default: return gai_strerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
@ -1,70 +0,0 @@
|
|||||||
#ifndef USOCKET_H
|
|
||||||
#define USOCKET_H
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Socket compatibilization module for Unix
|
|
||||||
* LuaSocket toolkit
|
|
||||||
\*=========================================================================*/
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* BSD include files
|
|
||||||
\*=========================================================================*/
|
|
||||||
/* error codes */
|
|
||||||
#include <errno.h>
|
|
||||||
/* close function */
|
|
||||||
#include <unistd.h>
|
|
||||||
/* fnctnl function and associated constants */
|
|
||||||
#include <fcntl.h>
|
|
||||||
/* struct sockaddr */
|
|
||||||
#include <sys/types.h>
|
|
||||||
/* socket function */
|
|
||||||
#include <sys/socket.h>
|
|
||||||
/* struct timeval */
|
|
||||||
#include <sys/time.h>
|
|
||||||
/* gethostbyname and gethostbyaddr functions */
|
|
||||||
#include <netdb.h>
|
|
||||||
/* sigpipe handling */
|
|
||||||
#include <signal.h>
|
|
||||||
/* IP stuff*/
|
|
||||||
#include <netinet/in.h>
|
|
||||||
#include <arpa/inet.h>
|
|
||||||
/* TCP options (nagle algorithm disable) */
|
|
||||||
#include <netinet/tcp.h>
|
|
||||||
#include <net/if.h>
|
|
||||||
|
|
||||||
#ifndef SOCKET_SELECT
|
|
||||||
#include <sys/poll.h>
|
|
||||||
#define WAITFD_R POLLIN
|
|
||||||
#define WAITFD_W POLLOUT
|
|
||||||
#define WAITFD_C (POLLIN|POLLOUT)
|
|
||||||
#else
|
|
||||||
#define WAITFD_R 1
|
|
||||||
#define WAITFD_W 2
|
|
||||||
#define WAITFD_C (WAITFD_R|WAITFD_W)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifndef SO_REUSEPORT
|
|
||||||
#define SO_REUSEPORT SO_REUSEADDR
|
|
||||||
#endif
|
|
||||||
|
|
||||||
/* Some platforms use IPV6_JOIN_GROUP instead if
|
|
||||||
* IPV6_ADD_MEMBERSHIP. The semantics are same, though. */
|
|
||||||
#ifndef IPV6_ADD_MEMBERSHIP
|
|
||||||
#ifdef IPV6_JOIN_GROUP
|
|
||||||
#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
|
|
||||||
#endif /* IPV6_JOIN_GROUP */
|
|
||||||
#endif /* !IPV6_ADD_MEMBERSHIP */
|
|
||||||
|
|
||||||
/* Same with IPV6_DROP_MEMBERSHIP / IPV6_LEAVE_GROUP. */
|
|
||||||
#ifndef IPV6_DROP_MEMBERSHIP
|
|
||||||
#ifdef IPV6_LEAVE_GROUP
|
|
||||||
#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
|
|
||||||
#endif /* IPV6_LEAVE_GROUP */
|
|
||||||
#endif /* !IPV6_DROP_MEMBERSHIP */
|
|
||||||
|
|
||||||
typedef int t_socket;
|
|
||||||
typedef t_socket *p_socket;
|
|
||||||
typedef struct sockaddr_storage t_sockaddr_storage;
|
|
||||||
|
|
||||||
#define SOCKET_INVALID (-1)
|
|
||||||
|
|
||||||
#endif /* USOCKET_H */
|
|
@ -1,429 +0,0 @@
|
|||||||
/*=========================================================================*\
|
|
||||||
* Socket compatibilization module for Win32
|
|
||||||
* LuaSocket toolkit
|
|
||||||
*
|
|
||||||
* The penalty of calling select to avoid busy-wait is only paid when
|
|
||||||
* the I/O call fail in the first place.
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include <string.h>
|
|
||||||
|
|
||||||
#include "socket.h"
|
|
||||||
|
|
||||||
/* WinSock doesn't have a strerror... */
|
|
||||||
static const char *wstrerror(int err);
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Initializes module
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_open(void) {
|
|
||||||
WSADATA wsaData;
|
|
||||||
WORD wVersionRequested = MAKEWORD(2, 0);
|
|
||||||
int err = WSAStartup(wVersionRequested, &wsaData );
|
|
||||||
if (err != 0) return 0;
|
|
||||||
if ((LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 0) &&
|
|
||||||
(LOBYTE(wsaData.wVersion) != 1 || HIBYTE(wsaData.wVersion) != 1)) {
|
|
||||||
WSACleanup();
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Close module
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_close(void) {
|
|
||||||
WSACleanup();
|
|
||||||
return 1;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Wait for readable/writable/connected socket with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
|
|
||||||
int ret;
|
|
||||||
fd_set rfds, wfds, efds, *rp = NULL, *wp = NULL, *ep = NULL;
|
|
||||||
struct timeval tv, *tp = NULL;
|
|
||||||
double t;
|
|
||||||
if (timeout_iszero(tm)) return IO_TIMEOUT; /* optimize timeout == 0 case */
|
|
||||||
if (sw & WAITFD_R) {
|
|
||||||
FD_ZERO(&rfds);
|
|
||||||
FD_SET(*ps, &rfds);
|
|
||||||
rp = &rfds;
|
|
||||||
}
|
|
||||||
if (sw & WAITFD_W) { FD_ZERO(&wfds); FD_SET(*ps, &wfds); wp = &wfds; }
|
|
||||||
if (sw & WAITFD_C) { FD_ZERO(&efds); FD_SET(*ps, &efds); ep = &efds; }
|
|
||||||
if ((t = timeout_get(tm)) >= 0.0) {
|
|
||||||
tv.tv_sec = (int) t;
|
|
||||||
tv.tv_usec = (int) ((t-tv.tv_sec)*1.0e6);
|
|
||||||
tp = &tv;
|
|
||||||
}
|
|
||||||
ret = select(0, rp, wp, ep, tp);
|
|
||||||
if (ret == -1) return WSAGetLastError();
|
|
||||||
if (ret == 0) return IO_TIMEOUT;
|
|
||||||
if (sw == WAITFD_C && FD_ISSET(*ps, &efds)) return IO_CLOSED;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Select with int timeout in ms
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
|
|
||||||
p_timeout tm) {
|
|
||||||
struct timeval tv;
|
|
||||||
double t = timeout_get(tm);
|
|
||||||
tv.tv_sec = (int) t;
|
|
||||||
tv.tv_usec = (int) ((t - tv.tv_sec) * 1.0e6);
|
|
||||||
if (n <= 0) {
|
|
||||||
Sleep((DWORD) (1000*t));
|
|
||||||
return 0;
|
|
||||||
} else return select(0, rfds, wfds, efds, t >= 0.0? &tv: NULL);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Close and inutilize socket
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_destroy(p_socket ps) {
|
|
||||||
if (*ps != SOCKET_INVALID) {
|
|
||||||
socket_setblocking(ps); /* close can take a long time on WIN32 */
|
|
||||||
closesocket(*ps);
|
|
||||||
*ps = SOCKET_INVALID;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
*
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_shutdown(p_socket ps, int how) {
|
|
||||||
socket_setblocking(ps);
|
|
||||||
shutdown(*ps, how);
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Creates and sets up a socket
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_create(p_socket ps, int domain, int type, int protocol) {
|
|
||||||
*ps = socket(domain, type, protocol);
|
|
||||||
if (*ps != SOCKET_INVALID) return IO_DONE;
|
|
||||||
else return WSAGetLastError();
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Connects or returns error message
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
|
|
||||||
int err;
|
|
||||||
/* don't call on closed socket */
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
/* ask system to connect */
|
|
||||||
if (connect(*ps, addr, len) == 0) return IO_DONE;
|
|
||||||
/* make sure the system is trying to connect */
|
|
||||||
err = WSAGetLastError();
|
|
||||||
if (err != WSAEWOULDBLOCK && err != WSAEINPROGRESS) return err;
|
|
||||||
/* zero timeout case optimization */
|
|
||||||
if (timeout_iszero(tm)) return IO_TIMEOUT;
|
|
||||||
/* we wait until something happens */
|
|
||||||
err = socket_waitfd(ps, WAITFD_C, tm);
|
|
||||||
if (err == IO_CLOSED) {
|
|
||||||
int len = sizeof(err);
|
|
||||||
/* give windows time to set the error (yes, disgusting) */
|
|
||||||
Sleep(10);
|
|
||||||
/* find out why we failed */
|
|
||||||
getsockopt(*ps, SOL_SOCKET, SO_ERROR, (char *)&err, &len);
|
|
||||||
/* we KNOW there was an error. if 'why' is 0, we will return
|
|
||||||
* "unknown error", but it's not really our fault */
|
|
||||||
return err > 0? err: IO_UNKNOWN;
|
|
||||||
} else return err;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Binds or returns error message
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_bind(p_socket ps, SA *addr, socklen_t len) {
|
|
||||||
int err = IO_DONE;
|
|
||||||
socket_setblocking(ps);
|
|
||||||
if (bind(*ps, addr, len) < 0) err = WSAGetLastError();
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
*
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_listen(p_socket ps, int backlog) {
|
|
||||||
int err = IO_DONE;
|
|
||||||
socket_setblocking(ps);
|
|
||||||
if (listen(*ps, backlog) < 0) err = WSAGetLastError();
|
|
||||||
socket_setnonblocking(ps);
|
|
||||||
return err;
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Accept with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len,
|
|
||||||
p_timeout tm) {
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
int err;
|
|
||||||
/* try to get client socket */
|
|
||||||
if ((*pa = accept(*ps, addr, len)) != SOCKET_INVALID) return IO_DONE;
|
|
||||||
/* find out why we failed */
|
|
||||||
err = WSAGetLastError();
|
|
||||||
/* if we failed because there was no connectoin, keep trying */
|
|
||||||
if (err != WSAEWOULDBLOCK && err != WSAECONNABORTED) return err;
|
|
||||||
/* call select to avoid busy wait */
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Send with timeout
|
|
||||||
* On windows, if you try to send 10MB, the OS will buffer EVERYTHING
|
|
||||||
* this can take an awful lot of time and we will end up blocked.
|
|
||||||
* Therefore, whoever calls this function should not pass a huge buffer.
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_send(p_socket ps, const char *data, size_t count,
|
|
||||||
size_t *sent, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err;
|
|
||||||
*sent = 0;
|
|
||||||
/* avoid making system calls on closed sockets */
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
/* loop until we send something or we give up on error */
|
|
||||||
for ( ;; ) {
|
|
||||||
/* try to send something */
|
|
||||||
int put = send(*ps, data, (int) count, 0);
|
|
||||||
/* if we sent something, we are done */
|
|
||||||
if (put > 0) {
|
|
||||||
*sent = put;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
/* deal with failure */
|
|
||||||
err = WSAGetLastError();
|
|
||||||
/* we can only proceed if there was no serious error */
|
|
||||||
if (err != WSAEWOULDBLOCK) return err;
|
|
||||||
/* avoid busy wait */
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Sendto with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
|
|
||||||
SA *addr, socklen_t len, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err;
|
|
||||||
*sent = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
int put = sendto(*ps, data, (int) count, 0, addr, len);
|
|
||||||
if (put > 0) {
|
|
||||||
*sent = put;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
err = WSAGetLastError();
|
|
||||||
if (err != WSAEWOULDBLOCK) return err;
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_W, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Receive with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_recv(p_socket ps, char *data, size_t count, size_t *got,
|
|
||||||
p_timeout tm)
|
|
||||||
{
|
|
||||||
int err, prev = IO_DONE;
|
|
||||||
*got = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
int taken = recv(*ps, data, (int) count, 0);
|
|
||||||
if (taken > 0) {
|
|
||||||
*got = taken;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
if (taken == 0) return IO_CLOSED;
|
|
||||||
err = WSAGetLastError();
|
|
||||||
/* On UDP, a connreset simply means the previous send failed.
|
|
||||||
* So we try again.
|
|
||||||
* On TCP, it means our socket is now useless, so the error passes.
|
|
||||||
* (We will loop again, exiting because the same error will happen) */
|
|
||||||
if (err != WSAEWOULDBLOCK) {
|
|
||||||
if (err != WSAECONNRESET || prev == WSAECONNRESET) return err;
|
|
||||||
prev = err;
|
|
||||||
}
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Recvfrom with timeout
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got,
|
|
||||||
SA *addr, socklen_t *len, p_timeout tm)
|
|
||||||
{
|
|
||||||
int err, prev = IO_DONE;
|
|
||||||
*got = 0;
|
|
||||||
if (*ps == SOCKET_INVALID) return IO_CLOSED;
|
|
||||||
for ( ;; ) {
|
|
||||||
int taken = recvfrom(*ps, data, (int) count, 0, addr, len);
|
|
||||||
if (taken > 0) {
|
|
||||||
*got = taken;
|
|
||||||
return IO_DONE;
|
|
||||||
}
|
|
||||||
if (taken == 0) return IO_CLOSED;
|
|
||||||
err = WSAGetLastError();
|
|
||||||
/* On UDP, a connreset simply means the previous send failed.
|
|
||||||
* So we try again.
|
|
||||||
* On TCP, it means our socket is now useless, so the error passes.
|
|
||||||
* (We will loop again, exiting because the same error will happen) */
|
|
||||||
if (err != WSAEWOULDBLOCK) {
|
|
||||||
if (err != WSAECONNRESET || prev == WSAECONNRESET) return err;
|
|
||||||
prev = err;
|
|
||||||
}
|
|
||||||
if ((err = socket_waitfd(ps, WAITFD_R, tm)) != IO_DONE) return err;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Put socket into blocking mode
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_setblocking(p_socket ps) {
|
|
||||||
u_long argp = 0;
|
|
||||||
ioctlsocket(*ps, FIONBIO, &argp);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Put socket into non-blocking mode
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
void socket_setnonblocking(p_socket ps) {
|
|
||||||
u_long argp = 1;
|
|
||||||
ioctlsocket(*ps, FIONBIO, &argp);
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* DNS helpers
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) {
|
|
||||||
*hp = gethostbyaddr(addr, len, AF_INET);
|
|
||||||
if (*hp) return IO_DONE;
|
|
||||||
else return WSAGetLastError();
|
|
||||||
}
|
|
||||||
|
|
||||||
int socket_gethostbyname(const char *addr, struct hostent **hp) {
|
|
||||||
*hp = gethostbyname(addr);
|
|
||||||
if (*hp) return IO_DONE;
|
|
||||||
else return WSAGetLastError();
|
|
||||||
}
|
|
||||||
|
|
||||||
/*-------------------------------------------------------------------------*\
|
|
||||||
* Error translation functions
|
|
||||||
\*-------------------------------------------------------------------------*/
|
|
||||||
const char *socket_hoststrerror(int err) {
|
|
||||||
if (err <= 0) return io_strerror(err);
|
|
||||||
switch (err) {
|
|
||||||
case WSAHOST_NOT_FOUND: return "host not found";
|
|
||||||
default: return wstrerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_strerror(int err) {
|
|
||||||
if (err <= 0) return io_strerror(err);
|
|
||||||
switch (err) {
|
|
||||||
case WSAEADDRINUSE: return "address already in use";
|
|
||||||
case WSAECONNREFUSED: return "connection refused";
|
|
||||||
case WSAEISCONN: return "already connected";
|
|
||||||
case WSAEACCES: return "permission denied";
|
|
||||||
case WSAECONNABORTED: return "closed";
|
|
||||||
case WSAECONNRESET: return "closed";
|
|
||||||
case WSAETIMEDOUT: return "timeout";
|
|
||||||
default: return wstrerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_ioerror(p_socket ps, int err) {
|
|
||||||
(void) ps;
|
|
||||||
return socket_strerror(err);
|
|
||||||
}
|
|
||||||
|
|
||||||
static const char *wstrerror(int err) {
|
|
||||||
switch (err) {
|
|
||||||
case WSAEINTR: return "Interrupted function call";
|
|
||||||
case WSAEACCES: return "Permission denied";
|
|
||||||
case WSAEFAULT: return "Bad address";
|
|
||||||
case WSAEINVAL: return "Invalid argument";
|
|
||||||
case WSAEMFILE: return "Too many open files";
|
|
||||||
case WSAEWOULDBLOCK: return "Resource temporarily unavailable";
|
|
||||||
case WSAEINPROGRESS: return "Operation now in progress";
|
|
||||||
case WSAEALREADY: return "Operation already in progress";
|
|
||||||
case WSAENOTSOCK: return "Socket operation on nonsocket";
|
|
||||||
case WSAEDESTADDRREQ: return "Destination address required";
|
|
||||||
case WSAEMSGSIZE: return "Message too long";
|
|
||||||
case WSAEPROTOTYPE: return "Protocol wrong type for socket";
|
|
||||||
case WSAENOPROTOOPT: return "Bad protocol option";
|
|
||||||
case WSAEPROTONOSUPPORT: return "Protocol not supported";
|
|
||||||
case WSAESOCKTNOSUPPORT: return "Socket type not supported";
|
|
||||||
case WSAEOPNOTSUPP: return "Operation not supported";
|
|
||||||
case WSAEPFNOSUPPORT: return "Protocol family not supported";
|
|
||||||
case WSAEAFNOSUPPORT:
|
|
||||||
return "Address family not supported by protocol family";
|
|
||||||
case WSAEADDRINUSE: return "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 "Connection reset by peer";
|
|
||||||
case WSAENOBUFS: return "No buffer space available";
|
|
||||||
case WSAEISCONN: return "Socket is already connected";
|
|
||||||
case WSAENOTCONN: return "Socket is not connected";
|
|
||||||
case WSAESHUTDOWN: return "Cannot send after socket shutdown";
|
|
||||||
case WSAETIMEDOUT: return "Connection timed out";
|
|
||||||
case WSAECONNREFUSED: return "Connection refused";
|
|
||||||
case WSAEHOSTDOWN: return "Host is down";
|
|
||||||
case WSAEHOSTUNREACH: return "No route to host";
|
|
||||||
case WSAEPROCLIM: return "Too many processes";
|
|
||||||
case WSASYSNOTREADY: return "Network subsystem is unavailable";
|
|
||||||
case WSAVERNOTSUPPORTED: return "Winsock.dll version out of range";
|
|
||||||
case WSANOTINITIALISED:
|
|
||||||
return "Successful WSAStartup not yet performed";
|
|
||||||
case WSAEDISCON: return "Graceful shutdown in progress";
|
|
||||||
case WSAHOST_NOT_FOUND: return "Host not found";
|
|
||||||
case WSATRY_AGAIN: return "Nonauthoritative host not found";
|
|
||||||
case WSANO_RECOVERY: return "Nonrecoverable name lookup error";
|
|
||||||
case WSANO_DATA: return "Valid name, no data record of requested type";
|
|
||||||
default: return "Unknown error";
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const char *socket_gaistrerror(int err) {
|
|
||||||
if (err == 0) return NULL;
|
|
||||||
switch (err) {
|
|
||||||
case EAI_AGAIN: return "temporary failure in name resolution";
|
|
||||||
case EAI_BADFLAGS: return "invalid value for ai_flags";
|
|
||||||
#ifdef EAI_BADHINTS
|
|
||||||
case EAI_BADHINTS: return "invalid value for hints";
|
|
||||||
#endif
|
|
||||||
case EAI_FAIL: return "non-recoverable failure in name resolution";
|
|
||||||
case EAI_FAMILY: return "ai_family not supported";
|
|
||||||
case EAI_MEMORY: return "memory allocation failure";
|
|
||||||
case EAI_NONAME:
|
|
||||||
return "host or service not provided, or not known";
|
|
||||||
#ifdef EAI_OVERFLOW
|
|
||||||
case EAI_OVERFLOW: return "argument buffer overflow";
|
|
||||||
#endif
|
|
||||||
#ifdef EAI_PROTOCOL
|
|
||||||
case EAI_PROTOCOL: return "resolved protocol is unknown";
|
|
||||||
#endif
|
|
||||||
case EAI_SERVICE: return "service not supported for socket type";
|
|
||||||
case EAI_SOCKTYPE: return "ai_socktype not supported";
|
|
||||||
#ifdef EAI_SYSTEM
|
|
||||||
case EAI_SYSTEM: return strerror(errno);
|
|
||||||
#endif
|
|
||||||
default: return gai_strerror(err);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
@ -1,38 +0,0 @@
|
|||||||
#ifndef WSOCKET_H
|
|
||||||
#define WSOCKET_H
|
|
||||||
/*=========================================================================*\
|
|
||||||
* Socket compatibilization module for Win32
|
|
||||||
* LuaSocket toolkit
|
|
||||||
\*=========================================================================*/
|
|
||||||
|
|
||||||
/*=========================================================================*\
|
|
||||||
* WinSock include files
|
|
||||||
\*=========================================================================*/
|
|
||||||
#include <winsock2.h>
|
|
||||||
#include <ws2tcpip.h>
|
|
||||||
|
|
||||||
typedef int socklen_t;
|
|
||||||
typedef SOCKADDR_STORAGE t_sockaddr_storage;
|
|
||||||
typedef SOCKET t_socket;
|
|
||||||
typedef t_socket *p_socket;
|
|
||||||
|
|
||||||
#define WAITFD_R 1
|
|
||||||
#define WAITFD_W 2
|
|
||||||
#define WAITFD_E 4
|
|
||||||
#define WAITFD_C (WAITFD_E|WAITFD_W)
|
|
||||||
|
|
||||||
#ifndef IPV6_V6ONLY
|
|
||||||
#define IPV6_V6ONLY 27
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#define SOCKET_INVALID (INVALID_SOCKET)
|
|
||||||
|
|
||||||
#ifndef SO_REUSEPORT
|
|
||||||
#define SO_REUSEPORT SO_REUSEADDR
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#ifndef AI_NUMERICSERV
|
|
||||||
#define AI_NUMERICSERV (0)
|
|
||||||
#endif
|
|
||||||
|
|
||||||
#endif /* WSOCKET_H */
|
|
Loading…
Reference in New Issue
Block a user