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From Joe Lewis <>
Subject Re: http-redirect url gets corrupted in request_rec - apache 2
Date Mon, 10 Dec 2007 14:15:15 GMT
> Hi, i have an authentication module that i am trying to port from 64 bit 
> linux to 32 bit solaris. The problem is that when the module redirects the 
> request to the authentication page, the URL seems to be getting corrupted when 
> it is passed betwen the module and apache core.                                 
>  For
> E.G; Within the module request_rec->headers_out is /loginPage/Somelogin.cgi
>  apache seems to actually redirect to:\xfb\xab\x98\xb0Page/Somelogin.cgi
>  i dont know why this is getting corrupted. Tried logging various parts of the
>  request_rec but didnt find anything. Does anyone have any ideas?
An idea : A variable in the same pool memory was written to that is too
big, overwriting data. I encountered this most often using strings that
were not NULL terminated as normal C programs expected. I would
typically place a couple of ap_log_rerror statements, printing the table
entry for headers_out that you are expecting. Once you narrow it down,
take a close look at the code that is used, and you should find your
specific problem. (If you have forced a size value in the conversion
from 32 bit to 64 bit, you may be overwriting a subsequent string that
you are trying to copy in).

Joseph Lewis <>
"Divide the fire, and you will sooner put it out." - Publius Syrus

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