/* unpost.c  by RJB CSUSB 1997  Program to rationalise content from CGI POST
Purpose:
   This program reads in a number of characters fron stdin and
   outputs them with an EOF at the end.  Usage... in a
   CGI script for a form with request method POST
	   unpost $CONTENT_LENGTH | urlunencode | ...
   preprocesses the query handed to the CGI.

   Also see the urlunencode script in
	http://www.csci.csusb.edu/dick/tools/urlunencode
*/
/*#define DEBUG*/
#include <stdio.h>
#include <stdlib.h>
#ifdef DEBUG
#define db(f,x) fprintf(stderr," "#x" =<"#f">\n",x);
#define dbs(x) fprintf(stderr,"%s\n",x);
#else
#define db(f,x)  ;
#define dbs(s)  ;
#endif


void main(int argc, char * argv[])
{
   int ch,i,n;
   if(argc!=2){fprintf(stdout,"usage: unpost $CONTENT_LENGTH\n");exit(1);}
   /*else*/
	n=abs(atoi(argv[1]));
	for(i=0; i<n; i++){
		putchar(getchar());
	}/*for each char*/
	fflush(stdout);
	fclose(stdout);
    exit(0);
}