Thread: c programming http get request

  1. #1
    Registered User
    Join Date
    Nov 2010

    c programming http get request

    I am trying to work out how to write a web server program that will serve a single file via a HTTP GET request if the file exists otherwise give the user a 404 error.

    I have started by figuring out what libraries I would need, the size of the buffer and a basic struct

    #include <stdio.h>
    #include <stdlib.h>
        #include <unistd.h>
        #include <errno.h>
        #include <string.h>
        #include <fcntl.h>
        #include <signal.h>
        #include <sys/types.h>
        #include <sys/socket.h>
        #include <netinet/in.h>
        #include <arpa/inet.h>
    #define BUFZ 8096;
           char *file_type;
           char *ext;
        extensions [] =
           {"gif", "image/gif" }, 
           {"jpg", "image/jpeg"},
           {"png", "image/png" },   
           {"htm", "text/html" }, 
           {"html","text/html" }, 
    I am not sure exactly where to take it from here. I am trying to get the web server to listen on port 10076 and requests should be outputted in the browser, through the network card ie the request would be http://ipofethcard:10076/path/file.html

    Any ideas on how to achieve this or what functions I would need to look at? Perhaps an example code/skeleton I could refer to?

    Thanks for any suggestions,
    Last edited by daza166; 02-16-2011 at 03:18 AM.

  2. #2
    Join Date
    Aug 2010
    Ontario Canada
    Well, you're going to have to learn sockets programming. You will need an understanding of the HTTP protocal. And you're going to need some depth in TCP/IP... and of course you'll need to know C pretty well in the bargain...

    A list of includes and a pre-loaded list of file extensions doesn't even scratch the surface on a project like this.

    Here's a few links to get you started....

    Linux Howtos: C/C++ -> Sockets Tutorial
    Winsock Programmer&rsquo;s FAQ: Winsock Programmer's FAQ

    HTTP Made Really Easy
    RFC 2616 - Hypertext Transfer Protocol -- HTTP/1.1

  3. #3
    Join Date
    Dec 2007
    Or you could use libcurl.

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