ws2_32: Ignore a SO_SNDBUF value of 0 on macOS.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=40264Signed-off-by: Alistair Leslie-Hughes <leslie_alistair@hotmail.com> Signed-off-by: Hans Leidekker <hans@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ws2_32: Ignore a SO_SNDBUF value of 0 on macOS.
e7fd1ac3 · Alistair Leslie-Hughes · Alexandre Julliard · b72da1fd · e7fd1ac3
Commit e7fd1ac3 authored Nov 19, 2018 by Alistair Leslie-Hughes Committed by Alexandre Julliard Nov 19, 2018
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socket.c dlls/ws2_32/socket.c +11 -1

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--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -5808,6 +5808,17 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
            optlen = sizeof(struct linger);
            break;

+        case WS_SO_SNDBUF:
+            if (!*(const int *)optval)
+            {
+                FIXME("SO_SNDBUF ignoring request to disable send buffering\n");
+#ifdef __APPLE__
+                return 0;
+#endif
+            }
+            convert_sockopt(&level, &optname);
+            break;
+
        case WS_SO_RCVBUF:
            if (*(const int*)optval < 2048)
            {
@@ -5828,7 +5839,6 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
         * however, using it the BSD way fixes bug 8513 and seems to be what
         * most programmers assume, anyway */
        case WS_SO_REUSEADDR:
-        case WS_SO_SNDBUF:
        case WS_SO_TYPE:
            convert_sockopt(&level, &optname);
            break;