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#!/usr/bin/perl -Tw
#
# fs_passwd
#
# portions of this script are copied from the `passwd' script in the original
# (perl 4) camel book, now archived at
# http://www.perl.com/CPAN/scripts/nutshell/ch6/passwd
#
# ivan@sisd.com 98-mar-8
#
# password lengths 0,255 instead of 6,8 - we'll let the server process
# check the data ivan@sisd.com 98-jul-17
use strict;
use Getopt::Std;
use Socket;
use IO::Handle;
use vars qw($opt_f $opt_s);
my($fs_passwdd_socket)="/usr/local/freeside/fs_passwdd_socket";
my($freeside_uid)=scalar(getpwnam('freeside'));
$ENV{'PATH'} ='/usr/local/bin:/usr/bin:/usr/ucb:/bin';
$ENV{'SHELL'} = '/bin/sh';
$ENV{'IFS'} = " \t\n";
$ENV{'CDPATH'} = '';
$ENV{'ENV'} = '';
$ENV{'BASH_ENV'} = '';
$SIG{__DIE__}= sub { system '/bin/stty', 'echo'; };
die "passwd program isn't running setuid to freeside\n" if $> != $freeside_uid;
unshift @ARGV, "-f" if $0 =~ /chfn$/;
unshift @ARGV, "-s" if $0 =~ /chsh$/;
getopts('fs');
my($me)='';
if ( $_ = shift(@ARGV) ) {
/^(\w{2,8})$/;
$me = $1;
}
die "You can't change the password for $me." if $me && $<;
$me = (getpwuid($<))[0] unless $me;
my($name,$passwd,$uid,$gid,$quota,$comment,$gcos,$dir,$shell)=
getpwnam $me;
my($old_password,$new_password,$new_gecos,$new_shell);
if ( $opt_f || $opt_s ) {
system '/bin/stty', '-echo';
print "Password:";
$old_password=<STDIN>;
system '/bin/stty', 'echo';
chop($old_password);
#$old_password =~ /^(.{6,8})$/ or die "\nIllegal password.\n";
$old_password =~ /^(.{0,255})$/ or die "\nIllegal password.\n";
$old_password = $1;
$new_password = '';
if ( $opt_f ) {
print "\nChanging gecos for $me.\n";
print "Gecos [", $gcos, "]: ";
$new_gecos=<STDIN>;
chop($new_gecos);
$new_gecos ||= $gcos;
$new_gecos =~ /^(.{0,255})$/ or die "\nIllegal gecos.\n";
} else {
$new_gecos = '';
}
if ( $opt_s ) {
print "\nChanging shell for $me.\n";
print "Shell [", $shell, "]: ";
$new_shell=<STDIN>;
chop($new_shell);
$new_shell ||= $shell;
$new_shell =~ /^(.{0,255})$/ or die "\nIllegal shell.\n";
} else {
$new_shell = '';
}
} else {
print "Changing password for $me.\n";
print "Old password:";
system '/bin/stty', '-echo';
$old_password=<STDIN>;
chop $old_password;
#$old_password =~ /^(.{6,8})$/ or die "\nIllegal password.\n";
$old_password =~ /^(.{0,255})$/ or die "\nIllegal password.\n";
$old_password = $1;
print "\nEnter the new password (minimum of 6, maximum of 8 characters)\n";
print "Please use a combination of upper and lowercase letters and numbers.\n";
print "New password:";
$new_password=<STDIN>;
chop($new_password);
#$new_password =~ /^(.{6,8})$/ or die "\nIllegal password.\n";
$new_password =~ /^(.{0,255})$/ or die "\nIllegal password.\n";
$new_password = $1;
print "\nRe-enter new password:";
my($check_new_password);
$check_new_password=<STDIN>;
chop($check_new_password);
die "\nThey don't match; try again.\n" unless $check_new_password eq $new_password;
$new_gecos='';
$new_shell='';
}
print "\n";
system '/bin/stty', 'echo';
socket(SOCK, PF_UNIX, SOCK_STREAM, 0) or die "socket: $!";
connect(SOCK, sockaddr_un($fs_passwdd_socket)) or die "connect: $!";
print SOCK join("\n",$me,$old_password,$new_password,$new_gecos,$new_shell),"\n";
SOCK->flush;
my($error);
$error = <SOCK>;
chop $error;
if ($error) {
print "\nUpdate error: $error\n";
} else {
print "\nUpdate sucessful.\n";
}
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