ws2_32: Manage shorter length for IP_RECVTOS.

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

ws2_32: Manage shorter length for IP_RECVTOS.
f95fd91f · Paul Gofman · Alexandre Julliard · d4595a9a · f95fd91f · f95fd91f
Commit f95fd91f authored Mar 10, 2022 by Paul Gofman Committed by Alexandre Julliard Mar 10, 2022
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socket.c dlls/ws2_32/socket.c +11 -0

sock.c dlls/ws2_32/tests/sock.c +1 -0

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--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -1770,6 +1770,12 @@ int WINAPI getsockopt( SOCKET s, int level, int optname, char *optval, int *optl
            return server_getsockopt( s, IOCTL_AFD_WINE_GET_IP_PKTINFO, optval, optlen );
        case IP_RECVTOS:
+            if (*optlen < sizeof(DWORD) || !optval)
+            {
+                *optlen = 0;
+                SetLastError( WSAEFAULT );
+                return SOCKET_ERROR;
+            }
            return server_getsockopt( s, IOCTL_AFD_WINE_GET_IP_RECVTOS, optval, optlen );
        case IP_RECVTTL:
@@ -3086,6 +3092,11 @@ int WINAPI setsockopt( SOCKET s, int level, int optname, const char *optval, int
            return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_PKTINFO, optval, optlen );
        case IP_RECVTOS:
+            if (optlen < sizeof(DWORD) || !optval)
+            {
+                SetLastError( WSAEFAULT );
+                return SOCKET_ERROR;
+            }
            return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_RECVTOS, optval, optlen );
        case IP_RECVTTL:

--- a/dlls/ws2_32/tests/sock.c
+++ b/dlls/ws2_32/tests/sock.c
@@ -1185,6 +1185,7 @@ static void test_set_getsockopt(void)
        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_MULTICAST_LOOP, TRUE, {1, 1, 4}, {0}, TRUE, TRUE},
        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_MULTICAST_TTL, TRUE, {1, 1, 4}, {0}, FALSE},
        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_PKTINFO, FALSE, {0, 0, 4}, {0}, TRUE, TRUE},
+        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_RECVTOS, FALSE, {0, 0, 4}, {0}, TRUE, TRUE},
        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_TOS, TRUE, {1, 1, 4}, {0}, FALSE},
        {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_TTL, TRUE, {1, 1, 4}, {0}, FALSE},
    };