libcgi 0.1

Jay C. Weber (weber@eit.COM)
Fri, 8 Jul 94 18:38:41 PDT

--***

EIT is releasing, for your programming pleasure, a freeware
library of functions that aid CGI-program creation in C
(or another language that can use C libraries). Look at

http://wsk.eit.com/wsk/dist/doc/libcgi/libcgi.html

for documentation and pointers to the distributions, including
source. Compiled libraries are there for SunOS 4.1.3, Solaris 2.3,
IRIX 5.2, and OSF/1 V2.0.

These are functions we found useful, especially for programs that
process forms. The get_form_entries function, for example, handles
parameter names and values of arbitrary length with exponential
allocation. It is also more efficient than a lot of the other parsing
code we've seen.

I've attached a template program that uses libcgi so you can
see basically what it does for you.

Isn't it time we started calling them "CGI programs" instead of
"CGI scripts"? ;-)

Jay

--
Jay C. Weber					weber@eit.com
Enterprise Integration Technologies		weber@cis.stanford.edu
800 El Camino Real				(415)617-8002
Menlo Park, CA 94025				fax: (415)617-8019
http://www.eit.com/people/weber.html


--***


/*
 * This file is part of the LIBCGI library
 *
 * Copyright 1994 by Enterprise Integration Technologies Corporation
 *
 * This is freeware with commercialization rights reserved; see the
 * LICENSE included in the distribution for specifics.
 */


#include<stdio.h>
#include "cgi.h"


cgi_main(cgi_info *ci) {
  char *parmval(form_entry *, char *);
  form_entry *parms, *p;
  form_entry *get_form_entries(cgi_info *);
  char *foo, *bar;


  print_mimeheader("text/html");


  puts("<title>Your Title Here</title>");
  puts("<h1>Your heading here</h1>");


  parms = get_form_entries(ci);
  if (parms) {
    /* extract specific form parameters */
    for(p=parms; p; p = p->next) {
      if (strcasecmp(p->name, "foo")) foo = p->val;
      else if (strcasecmp(p->name, "bar")) bar = p->val;
    }
  }


  switch(mcode(ci)) {


  case MCODE_HEAD:
    return;


  case MCODE_GET:    
    puts("Your GET response here");
    printf("based on foo=%s and bar=%s.\n", foo, bar);
    break;


  case MCODE_POST:
    puts("Your POST response here");
    printf("based on foo=%s and bar=%s.\n", foo, bar);
    break;


  default:
    printf("Unrecognized method '%s'.\n", ci->request_method);
  }


  free_form_entries(parms);
}


--***--