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Topic created on: December 25, 2007 11:30 CST by sziecuas .

How to debug a program that's running under web server env? I am spaeking about a C program writen with the CGI library, et that only work under a web server ( because the STDIN and the STDOUT will be difered to the web server). And if we lunch them under the OS (like any other program), we will have an error.

dELTA		December 25, 2007 14:03.46 CST
Well, set up a web server and debug it under that, just as any other normal program from that point on?

sziecuas		December 26, 2007 07:02.59 CST
> dELTA: Well, set up a web server and debug it under that, just as any other normal program from that point on? Execuse me, but how. How to debug it under the web server

dELTA		December 26, 2007 12:28.08 CST
A CGI executable will normally run like any other independent process in the computer, just being started by the web server instead of by you clicking on it in Windows Explorer. If the problem you are referring to is to break in the debugger at the right point (otherwise be more specific), either patch a spinning jump or an int3 at the executable's entrypoint, or replace the CGI executable with your own loader stub, and you're on your way.

serenade		January 12, 2008 04:41.06 CST
- -; I think writing to a log file on the server is a simple but efficacious way.

sovietskicpu		January 12, 2008 13:58.02 CST
The guy who asked this stupid question is working in the Tunisian National Internet & Computer Security organization. Do you see how stupid he is ?! Working in a National Internet Security and beeing so dumb to not being able to debug some lil CGI craps...

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