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Full Discussion: Setting X-Forwarded-For In C
Top Forums Programming Setting X-Forwarded-For In C Post 302980063 by Corona688 on Tuesday 23rd of August 2016 11:44:00 AM
Old 08-23-2016
Python in particular suffers from library-itis. If there's something which can be done, there's not just one but several conflicting libraries preinstalled for you.

C is more of a "do it yourself" language. It doesn't really lend itself to one-liners. But it gives you a level of control scripting languages don't.

Do you have wget?

Code:
#include <stdio.h>

int main(void) {
        const char *ip="1.2.3.4";
        printf("X-Forwarded-For:  %s\n", ip);
        printf("Content-Type:  text/html\n");
        printf("\n");

        // Turn over to external wget utility
        // execl never returns, your program "becomes" the command you told it to run.
        execlp("wget", "http://website.com/whatever.php", "-q" "-O" "-", NULL);
        // ...unless it can't find wget, in which case it returns an error, and so should we.
        return(1);
}

I'm not aware of a "standard" CGI library for C which everyone already has, but a quick look finds cgic: cgic: an ANSI C library for CGI Programming
Last edited by Corona688; 08-23-2016 at 12:56 PM..
 

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LEARN ABOUT DEBIAN

jigdo-lite

JIGDO-LITE(1)															     JIGDO-LITE(1)

NAME

       jigdo-lite - Download jigdo files using wget

SYNOPSIS

       jigdo-lite [ URL ]

DESCRIPTION

       See jigdo-file(1) for an introduction to Jigsaw Download.

       Given  the  URL	of  a  `.jigdo' file, jigdo-lite downloads the large file (e.g. a CD image) that has been made available through that URL.
       wget(1) is used to download the necessary pieces of administrative data (contained in the `.jigdo' file	and  a	corresponding  `.template'
       file) as well as the many pieces that the large file is made from. The jigdo-file(1) utility is used to reconstruct the large file from the
       pieces.

       `.jigdo' files that contain references to Debian mirrors are treated specially: When such a file is recognized, you are asked to select one
       mirror out of a list of all Debian mirrors.

       If  URL	is not given on the command line, the script prompts for a location to download the `.jigdo' file from. The following command line
       options are recognized:

       -h --help
	      Output short summary of command syntax.

       -v --version
	      Output version number.

       --scan FILES
	      Do not ask for "Files to scan", use this path.

       --noask
	      Do not ask any questions, instead behave as if the user had pressed Return at all prompts. This can be useful  when  running  jigdo-
	      lite from cron jobs or in other non-interactive environments.

SEE ALSO

       jigdo-file(1), jigdo-mirror(1), wget(1) (or `info wget')

       CD images for Debian Linux can be downloaded with jigdo <URL:http://www.debian.org/CD/jigdo-cd/>.

AUTHOR

       Jigsaw  Download  <URL:http://atterer.net/jigdo/>  was written by Richard Atterer <jigdo atterer.net>, to make downloading of CD ROM images
       for the Debian Linux distribution more convenient.

								    19 May 2006 						     JIGDO-LITE(1)
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