ws2_32: Explicitly forbid setting SO_ACCEPTCONN.

Signed-off-by: Zebediah Figura <z.figura12@gmail.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ws2_32: Explicitly forbid setting SO_ACCEPTCONN.
c5487167 · Zebediah Figura · Alexandre Julliard · 2f0e8c08 · c5487167
Commit c5487167 authored Jun 22, 2021 by Zebediah Figura Committed by Alexandre Julliard Jun 22, 2021
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socket.c dlls/ws2_32/socket.c +3 -1

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--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -3617,7 +3617,6 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
        /* The options listed here don't need any special handling. Thanks to
         * the conversion happening above, options from there will fall through
         * to this, too.*/
-        case WS_SO_ACCEPTCONN:
        case WS_SO_BROADCAST:
        case WS_SO_ERROR:
        case WS_SO_KEEPALIVE:
@@ -3714,6 +3713,9 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,

        default:
            TRACE("Unknown SOL_SOCKET optname: 0x%08x\n", optname);
+            /* fall through */
+
+        case WS_SO_ACCEPTCONN:
            SetLastError(WSAENOPROTOOPT);
            return SOCKET_ERROR;
        }