[PATCH 1/7] ws2_32: Return WSAEFAULT from setsockopt() for IP_MULTICAST_LOOP with zero optlen.
Paul Gofman
pgofman at codeweavers.com
Tue Mar 8 03:22:44 CST 2022
Signed-off-by: Paul Gofman <pgofman at codeweavers.com>
---
dlls/ws2_32/socket.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index dacb41a0403..816ca828b90 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -2981,6 +2981,11 @@ int WINAPI setsockopt( SOCKET s, int level, int optname, const char *optval, int
return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_MULTICAST_IF, optval, optlen );
case IP_MULTICAST_LOOP:
+ if (!optlen)
+ {
+ SetLastError( WSAEFAULT );
+ return -1;
+ }
return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_MULTICAST_LOOP, optval, optlen );
case IP_MULTICAST_TTL:
--
2.35.1
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