[tfaber] 56782: [MSAFD] - Gracefully handle lpcbBytesReturned == NULL condition in WSPIoctl. Fixes crash in ws2_32:sock

Author: tfaber
Date: Thu Jun 21 23:43:24 2012
New Revision: 56782

URL: http://svn.reactos.org/svn/reactos?rev=56782&view=rev
Log:
[MSAFD]
- Gracefully handle lpcbBytesReturned == NULL condition in WSPIoctl. Fixes crash in
ws2_32:sock

Modified:
    trunk/reactos/dll/win32/msafd/misc/dllmain.c

Modified: trunk/reactos/dll/win32/msafd/misc/dllmain.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/msafd/misc/dllma…
==============================================================================
--- trunk/reactos/dll/win32/msafd/misc/dllmain.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/msafd/misc/dllmain.c [iso-8859-1] Thu Jun 21 23:43:24 2012
@@ -1968,6 +1968,12 @@
 	BOOLEAN NeedsCompletion;
     BOOLEAN NonBlocking;
 
+    if (!lpcbBytesReturned)
+    {
+       *lpErrno = WSAEFAULT;
+       return SOCKET_ERROR;
+    }
+
     /* Get the Socket Structure associate to this Socket*/
     Socket = GetSocketStructure(Handle);
     if (!Socket)