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GetServerVariable or GetHeader?

Posted on 2006-07-10
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Last Modified: 2013-11-20
Hi,

Im making an ISAPI filter and i need to check the value of HTTP HEADER - "HTTP_X_UP_SUBNO" which is a header which WAP phones use.

Im using -

if (pCtxt->GetServerVariable("HTTP_X_UP_SUBNO", szAddress, &dwSize))
{
// do something
}
else
{
//failed
}

it always goes into the failed code with GetLastError returning ERROR_INVALID_INDEX.

Am i using the wrong function? GetHeader doesnt seem to work either.

Ive done a server variables dump in ASP and i definately have the 'HTTP_X_UP_SUBNO' header and it has a value but still i get ERROR_INVALID_INDEX.
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Question by:x2cmsac
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5 Comments
 
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Expert Comment

by:mahesh1402
ID: 17075278
Is this the case with u  : http://support.microsoft.com/default.aspx?scid=kb;en-us;294217 <=

-MAHESH
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Accepted Solution

by:
mahesh1402 earned 500 total points
ID: 17075328
As said any underscore ( _ ) that follows "HTTP_" is incorrectly converted to a dash when IIS attempts to retrieve the custom header value for the variable, and therefore, the variable is not found.

So resolve this you :

Do not use an underscore in the custom HTTP header variable name.

-OR-

Retrieve and parse the HTTP_ALL header variable for the custom HTTP header variable.


-MAHESH
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