Usermode/AxWin3 - Fixed dropped messages due to small buffer size

[tpg/acess2.git] / Usermode / Applications / axwin3_src / WM / ipc.c

diff --git a/Usermode/Applications/axwin3_src/WM/ipc.c b/Usermode/Applications/axwin3_src/WM/ipc.c
index 7155c11..9cf68e8 100644 (file)
--- a/Usermode/Applications/axwin3_src/WM/ipc.c
+++ b/Usermode/Applications/axwin3_src/WM/ipc.c
@@ -471,10 +471,16 @@ void IPC_Handle(tIPC_Client *Client, size_t MsgLen, tAxWin_IPCMessage *Msg)
 //     _SysDebug("IPC_Handle: (IPCType=%p, Ident=%p, MsgLen=%i, Msg=%p)",
 //             IPCType, Ident, MsgLen, Msg);
        
-       if( MsgLen < sizeof(tAxWin_IPCMessage) )
+       if( MsgLen < sizeof(*Msg) ) {
+               _SysDebug("IPC_Handle: %p Dropped full undersize message (%i < %i)",
+                       Client, MsgLen, sizeof(*Msg));
                return ;
-       if( MsgLen < sizeof(tAxWin_IPCMessage) + Msg->Size )
+       }
+       if( MsgLen < sizeof(*Msg) + Msg->Size ) {
+               _SysDebug("IPC_Handle: %p Dropped undersize message (%i < %i+%i)",
+                       Client, MsgLen, sizeof(*Msg), Msg->Size);
                return ;
+       }
        
        if( Msg->Flags & IPCMSG_FLAG_RENDERER )
        {