Paul Gofman : ws2_32: Treat optlen as unsigned in setsockopt() for SO_SNDTIMEO.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b2d1d090838f8f3b3affccfc0ccb7cfe623abb18
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=b2d1d090838f8f3b3affccfc0...

Author: Paul Gofman <pgofman(a)codeweavers.com>
Date:   Sat Mar  5 22:04:05 2022 +0300

ws2_32: Treat optlen as unsigned in setsockopt() for SO_SNDTIMEO.

Signed-off-by: Paul Gofman <pgofman(a)codeweavers.com>
Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/ws2_32/socket.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 2e99f415c72..efc0a5b488a 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -2837,6 +2837,7 @@ int WINAPI setsockopt( SOCKET s, int level, int optname, const char *optval, int
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_SNDBUF, optval, optlen );
 
         case SO_SNDTIMEO:
+            if (optlen < 0) optlen = 4;
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_SNDTIMEO, optval, optlen );
 
         /* SO_DEBUG is a privileged operation, ignore it. */