1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
#!/usr/bin/perl
use strict;
use warnings;
use Net::OpenSSH;
use Expect;
select STDOUT; $| = 1;
select STDERR; $| = 1;
@ARGV == 3 or die <<USAGE;
Usage:
$0 host old_password new_password
USAGE
my ($host, $old, $new) = @ARGV;
my $timeout = 20;
my $debug = 0;
my $ssh = Net::OpenSSH->new($host, password => $old);
my ($pty, $pid) = $ssh->open2pty("passwd")
or die "open2pty failed: " . $ssh->error . "\n";
my $expect = Expect->init($pty);
$expect->raw_pty(1);
$debug and $expect->log_user(1);
sub answer_passwd {
my ($pattern, $pass) = @_;
$debug and print "waiting for password prompt\n";
$expect->expect($timeout, -re => $pattern)
or die "expect failed\n";
$debug and print "prompt seen\n";
$expect->send("$pass\n");
$debug and print "password sent\n";
$expect->expect($timeout, "\n")
or die "bad password\n";
}
answer_passwd('current.*:', $old);
answer_passwd('new.*:', $new);
answer_passwd('new.*:', $new);
$expect->expect($timeout, "success") or die "Failed!\n";
print "password updated\n";
|
