Mngcli Traps When Opening a Subdomain \\XXX\ (189474)


The information in this article applies to:

  • Microsoft SNA Server 3.0
  • Microsoft SNA Server 3.0 SP1
  • Microsoft SNA Server 3.0 SP2
  • Microsoft SNA Server 3.0 SP3
  • Microsoft SNA Server 4.0
  • Microsoft SNA Server 4.0 SP1
This article was previously published under Q189474

SYMPTOMS

Specifying a SNA Server subdomain or server name that contains a backslash (for example, \\server\1) in the Open Subdomain option in SNA Server Manager causes an application exception in MngCli.exe. The application exception causes an Drwtsn32.log to be generated if Drwtsn32.exe is configured as the default debugger on the SNA Server computer.

CAUSE

The Manage Client (Mngcli.exe) does not properly validate the subdomain or server name if it includes a backslash ( \ ).

RESOLUTION

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0, and 4.0 SP1. We are researching this problem in SNA Server version 3.0 and will post more information here in the Knowledge Base as it becomes available.

This problem was corrected in the latest SNA Server version 4.0 U.S. Service Pack. For information on obtaining this Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

WORKAROUND

Do not use a backslash in the name after the initial backslashes ( \\ ).

MORE INFORMATION

After you applying the Service Pack, the Manage Client validates the name, and if a backslash appears after the first two backslashes, it is replaced by a terminating NULL, and everything after the backslash is ignored.

The Dr. Watson will look similar to the following: 
   Application exception occurred:
        App: exe\mngcli.dbg (pid=242)
        When: 5/25/1998 @ 13:9:36.502
        Exception number: 80000003 (hardcoded breakpoint)


   FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
   00c0ff58 77f1c690 00000007 00c0ffa0 00000000 ffffffff
   ntdll!NtWaitForMultipleObjects
   00c0ff74 6020475f 00000007 00c0ffa0 00000000 ffffffff
   kernel32!WaitForMultipleObjects

   State Dump for Thread Id 0xe2

   eax=00000006 ebx=77f068ca ecx=00000006 edx=00000007 esi=77f01361
   edi=77f0178e
   eip=77f76148 esp=00c4fd48 ebp=6727a610 iopl=0
   nv up ei pl nz na po nc
   cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000
   efl=00000206


   function: DbgBreakPoint
   FAULT ->77f76148 cc               int     3
        77f76149 c3               ret
        77f7614a 8bc0             mov     eax,eax
Modification Type:MajorLast Reviewed:6/29/2004
Keywords:kbbug kbfix KB189474
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