Check for a null pointer in WS_setsockopt.

cb98365c · Kester Maddock · Alexandre Julliard · 26fa3496 · cb98365c
Commit cb98365c authored Jun 07, 2003 by Kester Maddock Committed by Alexandre Julliard Jun 07, 2003
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socket.c dlls/winsock/socket.c +1 -1

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--- a/dlls/winsock/socket.c
+++ b/dlls/winsock/socket.c
@@ -2620,7 +2620,7 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
                   is null?? */
                optval = (char*)&linger;
                optlen = sizeof(struct linger);
-            } else if (optlen < sizeof(int)){
+            } else if (optval && optlen < sizeof(int)){
                woptval= *((INT16 *) optval);
                optval= (char*) &woptval;
                optlen=sizeof(int);