Var1=Two&name=Odysseus&address=Calypso%27s+island

I used this code to write the CGI you used for the form above:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
main()
{
char *endptr;
int i;
double contentlength;
char buff[10000];
char a,b;
const char *len1 = getenv("CONTENT_LENGTH");
contentlength=strtol(len1, &endptr, 10);
fread(buff, contentlength, 1, stdin);
printf("Content-type: text/html\n\n%s",buff);
}