Merge b0470f4a0e into 0f37af645c

The TCP Receive code now uses a switch statement and allows dropping the * at the start of the string, like Lua's io library

.github/workflows/build.yml

@@ -8,19 +8,19 @@ on:
 
 jobs:
   build:
-    name: Test ${{ matrix.luaVersion }} on ${{ matrix.platform }}
+    name: Test build on ${{ matrix.platform }}
     strategy:
       fail-fast: false
       matrix:
         luaVersion: [ "5.4", "5.3", "5.2", "5.1", "luajit", "luajit-openresty" ]
-        platform: [ "ubuntu-22.04", "macos-11", "windows-2022" ]
+        platform: [ "ubuntu-20.04", "macos-11", "windows-2022" ]
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Setup ’msvc’
-        if: ${{ startsWith(matrix.platform, 'windows') && !startsWith(matrix.luaVersion, 'luajit') }}
         uses: ilammy/msvc-dev-cmd@v1
+        if: ${{ !startsWith(matrix.luaVersion, 'luajit') }}
       - name: Setup ‘lua’
         uses: leso-kn/gh-actions-lua@v11-staging
         with:

.github/workflows/luacheck.yml

@@ -5,9 +5,9 @@ on: [push, pull_request]
 jobs:
 
   luacheck:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Luacheck
-        uses: lunarmodules/luacheck@v1
+        uses: lunarmodules/luacheck@v0

src/buffer.c

@@ -9,7 +9,7 @@
 * Internal function prototypes
 \*=========================================================================*/
 static int recvraw(p_buffer buf, size_t wanted, luaL_Buffer *b);
-static int recvline(p_buffer buf, luaL_Buffer *b);
+static int recvline(p_buffer buf, luaL_Buffer *b, int chop);
 static int recvall(p_buffer buf, luaL_Buffer *b);
 static int buffer_get(p_buffer buf, const char **data, size_t *count);
 static void buffer_skip(p_buffer buf, size_t count);
@@ -117,10 +117,21 @@ int buffer_meth_receive(lua_State *L, p_buffer buf) {
     luaL_addlstring(&b, part, size);
     /* receive new patterns */
     if (!lua_isnumber(L, 2)) {
-        const char *p= luaL_optstring(L, 2, "*l");
-        if (p[0] == '*' && p[1] == 'l') err = recvline(buf, &b);
-        else if (p[0] == '*' && p[1] == 'a') err = recvall(buf, &b);
-        else luaL_argcheck(L, 0, 2, "invalid receive pattern");
+        const char *p = luaL_optstring(L, 2, "l");
+        if (*p == '*') p++;  /* skip optional '*' (for compatibility) */
+        switch (*p) {
+            case 'l':  /* line */
+                err = recvline(buf, &b, 1);
+                break;
+            case 'L':  /* line with \n */
+                err = recvline(buf, &b, 0);
+                break;
+            case 'a':  /* all */
+                err = recvall(buf, &b);
+                break;
+            default:
+                luaL_argcheck(L, 0, 2, "invalid receive pattern");
+        }
     /* get a fixed number of bytes (minus what was already partially
      * received) */
     } else {
@@ -222,7 +233,7 @@ static int recvall(p_buffer buf, luaL_Buffer *b) {
 * Reads a line terminated by a CR LF pair or just by a LF. The CR and LF
 * are not returned by the function and are discarded from the buffer
 \*-------------------------------------------------------------------------*/
-static int recvline(p_buffer buf, luaL_Buffer *b) {
+static int recvline(p_buffer buf, luaL_Buffer *b, int chop) {
     int err = IO_DONE;
     while (err == IO_DONE) {
         size_t count, pos; const char *data;
@@ -234,6 +245,8 @@ static int recvline(p_buffer buf, luaL_Buffer *b) {
             pos++;
         }
         if (pos < count) { /* found '\n' */
+            if (!chop)
+                luaL_addchar(b, '\n');
             buffer_skip(buf, pos+1); /* skip '\n' too */
             break; /* we are done */
         } else /* reached the end of the buffer */

src/pierror.h

@@ -12,7 +12,7 @@
 #define PIE_CONNREFUSED    "connection refused"
 #define PIE_CONNABORTED    "closed"
 #define PIE_CONNRESET      "closed"
-#define PIE_TIMEDOUT       "connection timeout"
+#define PIE_TIMEDOUT       "timeout"
 #define PIE_AGAIN          "temporary failure in name resolution"
 #define PIE_BADFLAGS       "invalid value for ai_flags"
 #define PIE_BADHINTS       "invalid value for hints"