可以改变BBS非在线用户退出时间的脚本

#!/usr/bin/perl
use strict;
use warnings;

use IO::Socket;
use Expect;

my @serv_ip; #server's ip address
my $serv_port;
my $user;
my $pass;
my $buf;
my $msg_size;
sub usage()
{
        print "Usage: $0 \n";
        exit;
}

sub my_exit($)
{
        print "$_[0]\n";
        exit;
}

sub check_opt()
{
        if(not defined($ARGV[0]))
        {
                usage();
        }
        elsif($ARGV[0] =~ /[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/)
        {
                @serv_ip = split /\./, $ARGV[0];
                for(my $i = 0; $i < 4; $i++)
                {
                        if($serv_ip[$i] < 0 || $serv_ip[$i] > 255)
                        {
                                my_exit("Illegal IP!");
                        }
                }
        }
        if(not defined($ARGV[1]))
        {
                $serv_port = 23;
        }
        elsif($ARGV[1] > 0 && $ARGV[1] < 65535)
        {
                $serv_port = $ARGV[1];
        }
        else
        {
                my_exit("Illegal Port!");
        }
}

sub get_name()
{
        $user = ;
        chomp($user);
}

sub get_pass()
{
        print "(echo-off):";
       `stty -echo`;
        $pass = ;
       `stty echo`;
        chomp($pass);

}

sub connect_server()
{
        my $timeout = 3;
        my $delay = 0;
        my 1104 = Expect->spawn("telnet $ARGV[0] $serv_port")
        or die "Cannot spawn telnet: $!\n";
        110 ->expect($timeout,-re=>'请输入帐号');
        get_name();
        110 ->send_slow($delay, "$user\n");
        110 ->expect($timeout,-re=>'请输入密码');
        get_pass();

}

check_opt();
connect_server();