ERROR_INVALID_INDEX on a valid header   

Hello,
In a filter, sometimes with long cookie strings I call GetHeader for 
"Cookie:" and ERROR_INVALID_INDEX is returned. This happens inside and 
outside of a debugger. The behavior though is the same as 
ERROR_INSUFFICIENT_BUFFER in that the new size to allocate is set in the 
dword len parameter. If I break in a debugger and set the line to call 
GetHeader again, it works (of course causing a buffer overrun because the len 
parameter is the requested len rather than that of the existing buffer).
Seems this error should happen when a header is not known but is happening 
when the buffer is too small. Any thoughts oin what thats happening?
Thanks,

-- 
Adam Tuliper
http://www.secure-coding.com

date: Thu, 23 Feb 2006 13:26:26 -0800   author:   Adam am

RE: ERROR_INVALID_INDEX on a valid header   

Hi Adam,

Thanks for posting!

As we all know, the "ERROR_INVALID_INDEX" is that bad or unsupported 
variable identifier is used at current stage. From your description, I 
think I need repro the current issue. Then, I can do some troubleshooting 
to figure out why the problem occurs. So, could you please give me the 
source code as zipped format and the specific string you mentioned in the 
thread? This will help me to narrow down the current issue. My alias is 
v-yren@online.microsoft.com (remove .online). Thanks for your 
understanding! I'm looking forward your reply.

Regards,

Yuan Ren [MSFT]
Microsoft Online Support
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date: Fri, 24 Feb 2006 08:17:16 GMT   author:   (Yuan Ren[MSFT])

RE: ERROR_INVALID_INDEX on a valid header   

Hi Adam,

Thanks for your reply!

I just want to confirm whether any invalid characters included in your 
header name such as a semi-column ? : ?. If not, please send your .dll file 
and Ill continue research the current issue.

Thanks for your understanding!

Regards,

Yuan Ren [MSFT]
Microsoft Online Support

date: Tue, 07 Mar 2006 01:32:57 GMT   author:   (Yuan Ren[MSFT])