Zebediah Figura : ws2_32: Return 65467 or 0 in the iMaxUdpDg field.

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: 3c6d6acb9bc1e6503b175bda9d6de584fc958291
URL:    https://gitlab.winehq.org/wine/wine/-/commit/3c6d6acb9bc1e6503b175bda9d6de58...

Author: Zebediah Figura <zfigura(a)codeweavers.com>
Date:   Tue Feb  1 00:20:50 2022 -0600

ws2_32: Return 65467 or 0 in the iMaxUdpDg field.

Depending on reported winsock version.

Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>
(cherry picked from commit 5efc6369ebf5d1e262ac68dbcac546a11bded6ca)
Signed-off-by: Michael Stefaniuc <mstefani(a)winehq.org>

---

 dlls/ws2_32/socket.c         | 3 +--
 dlls/ws2_32/tests/protocol.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/dlls/ws2_32/socket.c b/dlls/ws2_32/socket.c
index 19a7d901414..7a1483f140f 100644
--- a/dlls/ws2_32/socket.c
+++ b/dlls/ws2_32/socket.c
@@ -419,7 +419,6 @@ static BOOL socket_list_remove( SOCKET socket )
     return FALSE;
 }
 
-#define MAX_UDP_DATAGRAM             1024
 static INT WINAPI WSA_DefaultBlockingHook( FARPROC x );
 
 int num_startup;
@@ -588,7 +587,7 @@ int WINAPI WSAStartup( WORD version, WSADATA *data )
         strcpy( data->szDescription, "WinSock 2.0" );
         strcpy( data->szSystemStatus, "Running" );
         data->iMaxSockets = (LOBYTE(version) == 1 ? 32767 : 0);
-        data->iMaxUdpDg = MAX_UDP_DATAGRAM;
+        data->iMaxUdpDg = (LOBYTE(version) == 1 ? 65467 : 0);
         /* don't fill lpVendorInfo */
     }
 
diff --git a/dlls/ws2_32/tests/protocol.c b/dlls/ws2_32/tests/protocol.c
index 7c003780e39..9273c23b73f 100644
--- a/dlls/ws2_32/tests/protocol.c
+++ b/dlls/ws2_32/tests/protocol.c
@@ -2872,7 +2872,7 @@ static void test_startup(void)
         ok(!strcmp(data.szDescription, "WinSock 2.0"), "got description %s\n", debugstr_a(data.szDescription));
         ok(!strcmp(data.szSystemStatus, "Running"), "got status %s\n", debugstr_a(data.szSystemStatus));
         ok(data.iMaxSockets == (LOBYTE(tests[i].version) == 1 ? 32767 : 0), "got maximum sockets %u\n", data.iMaxSockets);
-        todo_wine ok(data.iMaxUdpDg == (LOBYTE(tests[i].version) == 1 ? 65467 : 0), "got maximum datagram size %u\n", data.iMaxUdpDg);
+        ok(data.iMaxUdpDg == (LOBYTE(tests[i].version) == 1 ? 65467 : 0), "got maximum datagram size %u\n", data.iMaxUdpDg);
 
         WSASetLastError(0xdeadbeef);
         ret = WSACleanup();