system call include parameter!!

[slackman]

i'm newbie for linux programing and i program test.c in this below.

#include <fcntl.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>

int main(int argc, char **argv )
{

if(strcmp(argv[1],"add_rule")==0)
{
system("iptables -I INPUT -p tcp -m mac --mac-source $1 -m tcp --dport $2 -j DROP");
system("iptables -I FORWARD -p tcp -m mac --mac-source $1 -m tcp --dport $2 -j DROP");
}

test 00:00:00:00:00:00 172.168.1.100

after use that command iptables it's add INPUT,FORWARD

how to !!! help me it's code not working..!!

thank you for help me.

[GNU-Fan]

Hello,

the system function does not do variable substitution. You want to use sprintf.