help with sscanf()! Post: 302308257

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Top Forums Programming help with sscanf()! Post 302308257 by Zykl0n-B on Friday 17th of April 2009 01:28:28 PM

04-17-2009

Zykl0n-B

Guest

help with sscanf()!

Hi everybody,

i need help with this function, i'm programming in CGI with C and i can't make this work.

QUERY_STRING is something like: user=MYUSER&pass=MYPASS

So, what i want is to store the strings containing the username and the password into str1 and str2 respetively, here's the code:

Code:

#include <stdio.h>
#include <stdlib.h>
 
int main(void){
char *data, *str1, *str2;
 
/*... HTML stuff ...*/
 
data = getenv("QUERY_STRING");
 
if(data==NULL){
printf("<H1>Error passing data to CGI Script</H1>");
exit(1);
}
 
else
sscanf(data, "user=%s&pass=%s", &str1, &str2);
 
printf("Username: %s\n", str1);
printf("Password: %s\n", str2);
return(0);
}

But i'm getting an error... it works perfectly with numbers, but i need it to work like this, with strings.
Am i missing something? Please, help me!!!

Last edited by Zykl0n-B; 04-17-2009 at 02:33 PM..

Zykl0n-B

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bb-findhost.cgi

BB-FINDHOST.CGI(1)					      General Commands Manual						BB-FINDHOST.CGI(1)

NAME

       bb-findhost.cgi - Xymon CGI script to find hosts

SYNOPSIS

       bb-findhost.cgi?host=REGEX

DESCRIPTION

       bb-findhost.cgi is invoked as a CGI script via the bb-findhost.sh CGI wrapper.

       bb-findhost.cgi is passed a QUERY_STRING environment variable with the "host=REGEX" parameter. The REGEX is a Posix regular expression (see
       regex(7) ) describing the hostnames to look for.  A trailing wildcard is assumed on all hostnames - e.g. requesting the hostname "www" will
       match any host whose name begins with "www".

       It then produces a single web page, listing all of the hosts that matched any of the hostnames, with links to the Xymon webpages where they
       are located.

       The output page lists hosts in the order they appear in the bb-hosts(5) file.

       A sample web page implementing the search facility is included with bbgen, you access it via the URL /bb/help/bb-findhost.html.

OPTIONS

       --env=FILENAME
	      Loads the environment from FILENAME before executing the CGI.

FILES

       $BBHOME/web/findhost_header
	      HTML header file for the generated web page

       $BBHOME/web/findhost_footer
	      HTML footer file for the generated web page

       $BBHOME/web/findhost_form
	      Query form displayed when bb-findhost.cgi is called with no parameters.

ENVIRONMENT VARIABLES

       BBHOSTS
	      bb-findhost.cgi uses the BBHOSTS environment variable to find the bb-hosts file listing all known hosts and their page locations.

       BBHOME Used to locate the template files for the generated web pages.

SEE ALSO

       bbgen(1), bb-hosts(5), hobbitserver.cfg(5)

Xymon							    Version 4.2.3:  4 Feb 2009						BB-FINDHOST.CGI(1)