server: Introduce IOCTL_AFD_WINE_GET_SO_ACCEPTCONN.

include/wine/afd.h

@@ -159,6 +159,7 @@ struct afd_get_events_params
 #define IOCTL_AFD_WINE_GETPEERNAME          CTL_CODE(FILE_DEVICE_NETWORK, 216, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_AFD_WINE_DEFER                CTL_CODE(FILE_DEVICE_NETWORK, 217, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #define IOCTL_AFD_WINE_GET_INFO             CTL_CODE(FILE_DEVICE_NETWORK, 218, METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_AFD_WINE_GET_SO_ACCEPTCONN    CTL_CODE(FILE_DEVICE_NETWORK, 219, METHOD_BUFFERED, FILE_ANY_ACCESS)
 
 struct afd_create_params
 {

server/sock.c

@@ -2532,6 +2532,20 @@ static int sock_ioctl( struct fd *fd, ioctl_code_t code, struct async *async )
         return 0;
     }
 
+    case IOCTL_AFD_WINE_GET_SO_ACCEPTCONN:
+    {
+        int listening = (sock->state == SOCK_LISTENING);
+
+        if (get_reply_max_size() < sizeof(listening))
+        {
+            set_error( STATUS_BUFFER_TOO_SMALL );
+            return 0;
+        }
+
+        set_reply_data( &listening, sizeof(listening) );
+        return 1;
+    }
+
     default:
         set_error( STATUS_NOT_SUPPORTED );
         return 0;