Paul Gofman : ws2_32: Manage shorter length for SO_REUSEADDR.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9a198964f7f97eb011e00ec43d3e2e154d750738
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=9a198964f7f97eb011e00ec43d3e2e154d750738

Author: Paul Gofman <pgofman at codeweavers.com>
Date:   Wed Mar  9 11:59:46 2022 +0300

ws2_32: Manage shorter length for SO_REUSEADDR.

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

---

 dlls/ws2_32/socket.c     | 12 ++++++++++--
 dlls/ws2_32/tests/sock.c |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 58bb332e5ca..e47e6212d45 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -1621,7 +1621,9 @@ int WINAPI getsockopt( SOCKET s, int level, int optname, char *optval, int *optl
             return server_getsockopt( s, IOCTL_AFD_WINE_GET_SO_RCVTIMEO, optval, optlen );
 
         case SO_REUSEADDR:
-            return server_getsockopt( s, IOCTL_AFD_WINE_GET_SO_REUSEADDR, optval, optlen );
+            ret = server_getsockopt( s, IOCTL_AFD_WINE_GET_SO_REUSEADDR, optval, optlen );
+            if (!ret && *optlen < sizeof(DWORD)) *optlen = 1;
+            return ret;
 
         case SO_SNDBUF:
             return server_getsockopt( s, IOCTL_AFD_WINE_GET_SO_SNDBUF, optval, optlen );
@@ -2877,7 +2879,13 @@ int WINAPI setsockopt( SOCKET s, int level, int optname, const char *optval, int
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_RCVTIMEO, optval, optlen );
 
         case SO_REUSEADDR:
-            return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_REUSEADDR, optval, optlen );
+            if (!optval)
+            {
+                SetLastError( WSAEFAULT );
+                return SOCKET_ERROR;
+            }
+            memcpy( &value, optval, min( optlen, sizeof(value) ));
+            return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_REUSEADDR, (char *)&value, sizeof(value) );
 
         case SO_SNDBUF:
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_SO_SNDBUF, optval, optlen );
diff --git a/dlls/ws2_32/tests/sock.c b/dlls/ws2_32/tests/sock.c
index dde33dc4403..879f03d2e42 100644
--- a/dlls/ws2_32/tests/sock.c
+++ b/dlls/ws2_32/tests/sock.c
@@ -1177,6 +1177,7 @@ static void test_set_getsockopt(void)
         {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_KEEPALIVE, TRUE, {1, 1, 1}, {0}, TRUE},
         {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_DONTROUTE, TRUE, {1, 1, 1}, {0}, TRUE},
         {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_RCVTIMEO, FALSE, {1, 2, 4}, {0}, TRUE},
+        {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_REUSEADDR, TRUE, {1, 1, 4}, {0, 0xdead0001, 0}, TRUE, TRUE},
         {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_SNDTIMEO, FALSE, {1, 2, 4}, {0}, TRUE},
         {AF_INET, SOCK_STREAM, SOL_SOCKET, SO_OPENTYPE, FALSE, {1, 2, 4}, {0}, TRUE},
         {AF_INET, SOCK_DGRAM, IPPROTO_IP, IP_MULTICAST_LOOP, TRUE, {1, 1, 4}, {0}, TRUE, TRUE},