Click on first_pgm_cgi_get.c to get source.
/* File: CExamples/first_pgm_cgi_get.c
Compile as "gcc -Wall -ansi -o first_pgm_cgi_get first_pgm_cgi_get.c"
and run via "first_pgm_get.html" in your Internet browser (GET method)
*/
#include <stdio.h>
#include <stdlib.h>
/* look in /usr/include for the contents of this header file */
int main(void)
{int i; /* loop counter */
int c; /* number of times the text is to be printed */
char *query_string; /* returned by getenv */
query_string = getenv("QUERY_STRING");
sscanf(query_string, "c=%d", &c);
/* must give proper header information to browser */
printf ("Content-type: text/plain\n\n");
for(i=1; i<=c; i++)
printf("%3d. I've been bad.\n",i);
return 0;
}