1131 lines
36 KiB
Perl
Executable File
1131 lines
36 KiB
Perl
Executable File
#!/usr/bin/perl
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# adduser: a utility to add users to the system
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# addgroup: a utility to add groups to the system
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# Copyright (C) 1997, 1998, 1999 Guy Maor <maor@debian.org>
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# Copyright (C) 1995 Ted Hajek <tedhajek@boombox.micro.umn.edu>
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# Ian A. Murdock <imurdock@gnu.ai.mit.edu>
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# Bugfixes and other improvements Roland Bauerschmidt <rb@debian.org>
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# General scheme of the program adapted by the original debian 'adduser'
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# program by Ian A. Murdock <imurdock@gnu.ai.mit.edu>.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#
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####################
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# See the usage subroutine for explanation about how the program can be called
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####################
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use warnings;
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use strict;
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use Debian::AdduserCommon;
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use Getopt::Long;
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my $version = "3.116ubuntu1";
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###################
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# return values
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use constant RET_OK => 0; # OK
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use constant RET_OBJECT_ALREADY_EXISTS => 1; # the user or group does already exist, so the requested action cannot be performed
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use constant RET_INVALID_CHARS_IN_NAME => 1; # the provided name contains invalid characters
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use constant RET_ADDUSER_ABORTED => 1; # the program was aborted (eg via Ctrl+C)
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use constant RET_INVALID_CALL => 1; # getopt returned with "false"
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BEGIN {
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local $ENV{PERL_DL_NONLAZY}=1;
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eval 'use Locale::gettext';
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if ($@) {
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*gettext = sub { shift };
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*textdomain = sub { "" };
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*LC_MESSAGES = sub { 5 };
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}
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eval {
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require POSIX;
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import POSIX qw(setlocale);
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};
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if ($@) {
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*setlocale = sub { return 1 };
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}
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eval {
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require I18N::Langinfo;
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import I18N::Langinfo qw(langinfo YESEXPR NOEXPR);
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};
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if ($@) {
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*langinfo = sub { return shift; };
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*YESEXPR = sub { "^[yY]" };
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*NOEXPR = sub { "^[nN]" };
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}
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}
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setlocale(LC_MESSAGES, "");
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textdomain("adduser");
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my $yesexpr = langinfo(YESEXPR());
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my %config; # configuration hash
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my @defaults = ("/etc/adduser.conf");
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my $nogroup_id = getgrnam("nogroup") || 65534;
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$0 =~ s+.*/++;
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our $verbose = 1; # should we be verbose?
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my $allow_badname = 0; # should we allow bad names?
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my $ask_passwd = 1; # ask for a passwd?
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my $disabled_login = 0; # leave the new account disabled?
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our $configfile = undef;
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our $found_group_opt = undef;
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our $found_sys_opt = undef;
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our $ingroup_name = undef;
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our $new_firstuid = undef;
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our $new_gecos = undef;
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our $new_gid = undef;
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our $new_lastuid = undef;
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our $new_uid = undef;
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our $no_create_home = undef;
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our $special_home = undef;
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our $special_shell = undef;
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our $add_extra_groups = 0;
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our $use_extrausers = 0;
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our $encrypt_home = undef;
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# Global variables we need later
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my $existing_user = undef;
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my $existing_group = undef;
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my $new_name = undef;
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my $make_group_also = 0;
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my $home_dir = undef;
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my $undohome = undef;
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my $undouser = undef;
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my $undogroup = undef;
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my $shell = undef;
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my $first_uid = undef;
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my $last_uid = undef;
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my $dir_mode = undef;
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my $perm = undef;
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our @names;
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# Parse options, sanity checks
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unless ( GetOptions ("quiet|q" => sub { $verbose = 0 },
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"force-badname" => \$allow_badname,
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"help|h" => sub { &usage(); exit RET_OK },
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"version|v" => sub { &version(); exit RET_OK },
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"system" => \$found_sys_opt,
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"group" => \$found_group_opt,
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"ingroup=s" => \$ingroup_name,
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"home=s" => \$special_home,
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"gecos=s" => \$new_gecos,
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"shell=s" => \$special_shell,
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"disabled-password" => sub { $ask_passwd = 0 },
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"disabled-login" => sub { $disabled_login = 1; $ask_passwd = 0 },
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"uid=i" => \$new_uid,
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"firstuid=i" => \$new_firstuid,
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"lastuid=i" => \$new_lastuid,
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"gid=i" => \$new_gid,
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"conf=s" => \$configfile,
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"no-create-home" => \$no_create_home,
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"encrypt-home" => \$encrypt_home,
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"add_extra_groups" => \$add_extra_groups,
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"extrausers" => \$use_extrausers,
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"debug" => sub { $verbose = 2 } ) ) {
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&usage();
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exit RET_INVALID_CALL;
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}
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# everyone can issue "--help" and "--version", but only root can go on
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dief (gtx("Only root may add a user or group to the system.\n")) if ($> != 0);
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if( defined($configfile) ) { @defaults = ($configfile); }
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# detect the right mode
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my $action = $0 eq "addgroup" ? "addgroup" : "adduser";
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if (defined($found_sys_opt)) {
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$action = "addsysuser" if ($action eq "adduser");
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$action = "addsysgroup" if ($action eq "addgroup");
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}
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# explicitly set PATH, because super (1) cleans up the path and makes adduser unusable;
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# this is also a good idea for sudo (which doesn't clean up)
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$ENV{"PATH"}="/bin:/usr/bin:/sbin:/usr/sbin";
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$ENV{"IFS"}=" \t\n";
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############################
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# checks related to @names #
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############################
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while (defined(my $arg = shift(@ARGV))) {
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push (@names, $arg);
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}
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if ( (! defined $names[0]) || length($names[0]) == 0 || @names > 2) {
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dief (gtx("Only one or two names allowed.\n"));
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}
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if (@names == 2) { # must be addusertogroup
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dief (gtx("Specify only one name in this mode.\n"))
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if ($action eq "addsysuser" || $found_group_opt);
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$action = "addusertogroup";
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$existing_user = shift (@names);
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$existing_group = shift (@names);
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}
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else { # 1 parameter, must be adduser
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$new_name = shift (@names);
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}
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###################################
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# check for consistent parameters #
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###################################
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if ($action ne "addgroup" &&
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defined($found_group_opt) +defined($ingroup_name) +defined($new_gid) > 1 ) {
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dief (gtx("The --group, --ingroup, and --gid options are mutually exclusive.\n"));
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}
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if ((defined($special_home)) && ($special_home !~ m+^/+ )) {
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dief (gtx("The home dir must be an absolute path.\n"));
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}
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if (defined($special_home) && $verbose) {
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printf gtx("Warning: The home dir %s you specified already exists.\n"),$special_home
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if (!defined($no_create_home) && -d $special_home);
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printf gtx("Warning: The home dir %s you specified can't be accessed: %s\n"), $special_home, $!
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if (defined($no_create_home) && ! -d $special_home);
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}
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if ($found_group_opt) {
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if ($action eq "addsysuser") {
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$make_group_also = 1;
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}
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elsif ($found_sys_opt) {
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$action = "addsysgroup";
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}
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else {
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$action = "addgroup";
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}
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}
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my $ecryptfs_setup_private;
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if (defined($encrypt_home)) {
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$ecryptfs_setup_private = &which('ecryptfs-setup-private');
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}
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$ENV{"VERBOSE"} = $verbose;
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$ENV{"DEBUG"} = $verbose;
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# preseed configuration data and then read the config file
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preseed_config(\@defaults,\%config);
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&checkname($new_name, $found_sys_opt) if defined $new_name;
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$SIG{'INT'} = $SIG{'QUIT'} = $SIG{'HUP'} = 'handler';
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#####
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# OK, we've processed the arguments. $action equals one of the following,
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# and the appropriate variables have been set:
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#
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# $action = "adduser"
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# $new_name - the name of the new user.
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# $ingroup_name | $new_gid - the group to add the user to
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# $special_home, $new_uid, $new_gecos - optional overrides
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# $action = "addgroup"
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# $new_name - the name of the new group
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# $new_gid - optional override
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# $action = "addsysgroup"
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# $new_name - the name of the new group
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# $new_gid - optional override
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# $action = "addsysuser"
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# $new_name - the name of the new user
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# $make_group_also | $ingroup_name | $new_gid | 0 - which group
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# $special_home, $new_uid, $new_gecos - optional overrides
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# $action = "addusertogroup"
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# $existing_user - the user to be added
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# $existing_group - the group to add her to
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#####
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#################
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## addsysgroup ##
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#################
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if ($action eq "addsysgroup") {
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# Check if requested group already exists and we can exit safely
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my $ret = existing_group_ok($new_name, $new_gid);
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if ($ret == 3) {
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print STDERR "$0: " if $verbose;
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printf STDERR (gtx("The group `%s' already exists as a system group. Exiting.\n"), $new_name) if $verbose;
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exit RET_OK;
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}
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if ($ret == 1) {
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print STDERR "$0: " if $verbose;
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printf STDERR (gtx("The group `%s' already exists and is not a system group. Exiting.\n"), $new_name);
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exit RET_OBJECT_ALREADY_EXISTS;
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}
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if ($ret == 2) {
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print STDERR "$0: " if $verbose;
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printf STDERR (gtx("The group `%s' already exists, but has a different GID. Exiting.\n"), $new_name);
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exit RET_OBJECT_ALREADY_EXISTS;
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}
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dief (gtx("The GID `%s' is already in use.\n"),$new_gid)
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if (defined($new_gid) && defined(getgrgid($new_gid)));
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if (!defined($new_gid)) {
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$new_gid = &first_avail_gid($config{"first_system_gid"},
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$config{"last_system_gid"});
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if ($new_gid == -1) {
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print STDERR "$0: ";
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printf STDERR gtx("No GID is available in the range %d-%d (FIRST_SYS_GID - LAST_SYS_GID).\n"),$config{"first_system_gid"},$config{"last_system_gid"};
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dief (gtx("The group `%s' was not created.\n"),$new_name);
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}
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}
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printf (gtx("Adding group `%s' (GID %d) ...\n"),$new_name,$new_gid) if $verbose;
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&invalidate_nscd("group");
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my $groupadd = &which('groupadd');
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if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
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&systemcall($groupadd, '--extrausers', '-g', $new_gid, $new_name);
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} else {
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&systemcall($groupadd, '-g', $new_gid, $new_name);
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}
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&invalidate_nscd("group");
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print (gtx("Done.\n")) if $verbose;
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exit RET_OK;
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}
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##############
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## addgroup ##
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##############
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if ($action eq "addgroup") {
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dief (gtx("The group `%s' already exists.\n"),$new_name)
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if (defined getgrnam($new_name));
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dief (gtx("The GID `%s' is already in use.\n"),$new_gid)
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if (defined($new_gid) && defined(getgrgid($new_gid)));
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if (!defined($new_gid)) {
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$new_gid = &first_avail_gid($config{"first_gid"},
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$config{"last_gid"});
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if ($new_gid == -1) {
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print STDERR "$0: ";
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printf STDERR gtx("No GID is available in the range %d-%d (FIRST_GID - LAST_GID).\n"),$config{"first_gid"},$config{"last_gid"};
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dief (gtx("The group `%s' was not created.\n"),$new_name);
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}
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}
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printf (gtx("Adding group `%s' (GID %d) ...\n"),$new_name,$new_gid) if $verbose;
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&invalidate_nscd("group");
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my $groupadd = &which('groupadd');
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if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
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&systemcall($groupadd, '--extrausers', '-g', $new_gid, $new_name);
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} else {
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&systemcall($groupadd, '-g', $new_gid, $new_name);
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}
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&invalidate_nscd("group");
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print (gtx("Done.\n")) if $verbose;
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exit RET_OK;
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}
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####################
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## addusertogroup ##
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####################
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if ($action eq "addusertogroup") {
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dief (gtx("The user `%s' does not exist.\n"),$existing_user)
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if (!defined getpwnam($existing_user));
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dief (gtx("The group `%s' does not exist.\n"),$existing_group)
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if (!defined getgrnam($existing_group));
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if (&user_is_member($existing_user, $existing_group)) {
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printf gtx("The user `%s' is already a member of `%s'.\n"),
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$existing_user,$existing_group if $verbose;
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exit RET_OK; # not really an error
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}
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printf gtx("Adding user `%s' to group `%s' ...\n"),$existing_user,$existing_group
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if $verbose;
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&invalidate_nscd();
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my $gpasswd = &which('gpasswd');
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&systemcall($gpasswd, '-a',$existing_user,$existing_group);
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&invalidate_nscd();
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print (gtx("Done.\n")) if $verbose;
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exit RET_OK;
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}
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################
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## addsysuser ##
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################
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if ($action eq "addsysuser") {
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if (existing_user_ok($new_name, $new_uid) == 1) {
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# a user with this name already exists; it's a problem when it's not a system user
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my $tmp_u = getpwnam($new_name);
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if (($tmp_u >= $config{"first_system_uid"}) and ($tmp_u <= $config{"last_system_uid"})) {
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printf (gtx("The system user `%s' already exists. Exiting.\n"), $new_name) if $verbose;
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exit RET_OK
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}
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warnf (gtx("The user `%s' already exists, but is not a system user. Exiting.\n"), $new_name);
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exit RET_OBJECT_ALREADY_EXISTS;
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}
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if (existing_user_ok($new_name, $new_uid) == 2) {
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warnf (gtx("The user `%s' already exists with a different UID. Exiting.\n"), $new_name);
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exit RET_OBJECT_ALREADY_EXISTS;
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}
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if (!$ingroup_name && !defined($new_gid) && !$make_group_also) {
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$new_gid = $nogroup_id;
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}
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check_user_group(1);
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if (!defined($new_uid) && $make_group_also) {
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$new_uid = &first_avail_uid($config{"first_system_uid"},
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$config{"last_system_uid"});
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if ($new_uid == -1) {
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print STDERR "$0: ";
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printf STDERR gtx("No UID/GID pair is available in the range %d-%d (FIRST_SYS_UID - LAST_SYS_UID).\n"),$config{"first_system_uid"},$config{"last_system_uid"};
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dief (gtx("The user `%s' was not created.\n"),$new_name);
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}
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$new_gid = &first_avail_gid($config{"first_system_gid"},
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$config{"last_system_gid"});
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$ingroup_name = $new_name;
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}
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elsif (!defined($new_uid) && !$make_group_also) {
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$new_uid = &first_avail_uid($config{"first_system_uid"},
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$config{"last_system_uid"});
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if ($new_uid == -1) {
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print STDERR "$0: ";
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printf STDERR gtx("No UID is available in the range %d-%d (FIRST_SYS_UID - LAST_SYS_UID).\n"),$config{"first_system_uid"},$config{"last_system_uid"};
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dief (gtx("The user `%s' was not created.\n"),$new_name);
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}
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if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
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elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
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else { dief (gtx("Internal error")); }
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}
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else {
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if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
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elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
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elsif ($make_group_also){ $new_gid=$new_uid; $ingroup_name=$new_name; }
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else { dief (gtx("Internal error")); }
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}
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printf (gtx("Adding system user `%s' (UID %d) ...\n"),$new_name,$new_uid) if $verbose;
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&invalidate_nscd();
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# if we reach this point, and the group does already exist, we can use it.
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if ($make_group_also && !getgrnam($new_name)) {
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printf (gtx("Adding new group `%s' (GID %d) ...\n"),$new_name,$new_gid) if $verbose;
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$undogroup = $new_name;
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my $groupadd = &which('groupadd');
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if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
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&systemcall($groupadd, '--extrausers', '-g', $new_gid, $new_name);
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} else {
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&systemcall($groupadd, '-g', $new_gid, $new_name);
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}
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&invalidate_nscd("group");
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}
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printf gtx("Adding new user `%s' (UID %d) with group `%s' ...\n"),$new_name,$new_uid,$ingroup_name
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if $verbose;
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$home_dir = $special_home || &homedir($new_name, $ingroup_name);
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$shell = $special_shell || '/usr/sbin/nologin';
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$undouser = $new_name;
|
|
my $useradd = &which('useradd');
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($useradd, '--extrausers', '-d', $home_dir, '-g', $ingroup_name, '-s',
|
|
$shell, '-u', $new_uid, $new_name);
|
|
} else {
|
|
&systemcall($useradd, '-d', $home_dir, '-g', $ingroup_name, '-s',
|
|
$shell, '-u', $new_uid, $new_name);
|
|
}
|
|
if(!$disabled_login) {
|
|
my $usermod = &which('usermod');
|
|
&systemcall($usermod, '-p', '*', $new_name);
|
|
}
|
|
my $chage = &which('chage');
|
|
print "$chage -M 99999 $new_name\n" if ($verbose > 1);
|
|
# do _not_ use systemcall() here, since systemcall() dies on
|
|
# non-zero exit code and we need to do special handling here!
|
|
if (system($chage, '-M', '99999', $new_name)) {
|
|
if( ($?>>8) ne 15 ) {
|
|
&cleanup(sprintf((gtx("`%s' returned error code %d. Exiting.\n")), "$chage -M 99999 $new_name", $?>>8))
|
|
if ($?>>8);
|
|
&cleanup(sprintf((gtx("`%s' exited from signal %d. Exiting.\n")), "$chage -M 99999 $new_name", $?&255));
|
|
} else {
|
|
printf STDERR (gtx("%s failed with return code 15, shadow not enabled, password aging cannot be set. Continuing.\n"), $chage);
|
|
}
|
|
}
|
|
&invalidate_nscd();
|
|
|
|
if(defined($new_gecos)) {
|
|
&ch_gecos($new_gecos);
|
|
}
|
|
create_homedir (0);
|
|
|
|
exit RET_OK;
|
|
}
|
|
|
|
|
|
#############
|
|
## adduser ##
|
|
#############
|
|
if ($action eq "adduser") {
|
|
if (!$ingroup_name && !defined($new_gid)) {
|
|
if ($config{"usergroups"} =~ /yes/i) { $make_group_also = 1; }
|
|
else { $new_gid = $config{"users_gid"}; }
|
|
}
|
|
check_user_group(0);
|
|
$first_uid = $new_firstuid || $config{"first_uid"};
|
|
$last_uid = $new_lastuid || $config{"last_uid"};
|
|
printf (gtx("Adding user `%s' ...\n"),$new_name) if $verbose;
|
|
|
|
if (!defined($new_uid) && $make_group_also) {
|
|
$new_uid = &first_avail_uid($first_uid,
|
|
$last_uid);
|
|
|
|
if ($new_uid == -1) {
|
|
print STDERR "$0: ";
|
|
printf STDERR gtx("No UID/GID pair is available in the range %d-%d (FIRST_UID - LAST_UID).\n"),$first_uid,$last_uid;
|
|
dief (gtx("The user `%s' was not created.\n"),$new_name);
|
|
}
|
|
$new_gid = &first_avail_gid($config{"first_gid"},
|
|
$config{"last_gid"});
|
|
$ingroup_name = $new_name;
|
|
}
|
|
elsif (!defined($new_uid) && !$make_group_also) {
|
|
$new_uid = &first_avail_uid($first_uid,
|
|
$last_uid);
|
|
if ($new_uid == -1) {
|
|
print STDERR "$0: ";
|
|
printf STDERR gtx("No UID is available in the range %d-%d (FIRST_UID - LAST_UID).\n"),$config{"first_uid"},$config{"last_uid"};
|
|
dief (gtx("The user `%s' was not created.\n"),$new_name);
|
|
}
|
|
if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
|
|
elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
|
|
else { dief (gtx("Internal error")); }
|
|
}
|
|
else {
|
|
if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
|
|
elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
|
|
elsif ($make_group_also){ $new_gid=$new_uid; $ingroup_name=$new_name; }
|
|
else { dief (gtx("Internal error")); }
|
|
}
|
|
|
|
&invalidate_nscd();
|
|
if ($make_group_also) {
|
|
printf (gtx("Adding new group `%s' (%d) ...\n"),$new_name,$new_gid) if $verbose;
|
|
$undogroup = $new_name;
|
|
my $groupadd = &which('groupadd');
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($groupadd, '--extrausers', '-g', $new_gid, $new_name);
|
|
} else {
|
|
&systemcall($groupadd, '-g', $new_gid, $new_name);
|
|
}
|
|
&invalidate_nscd();
|
|
}
|
|
|
|
printf gtx("Adding new user `%s' (%d) with group `%s' ...\n"),$new_name,$new_uid,$ingroup_name
|
|
if $verbose;
|
|
$home_dir = $special_home || &homedir($new_name, $ingroup_name);
|
|
$shell = $special_shell || $config{"dshell"};
|
|
$undouser = $new_name;
|
|
my $useradd = &which('useradd');
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($useradd, '--extrausers', '-d', $home_dir, '-g', $ingroup_name, '-s',
|
|
$shell, '-u', $new_uid, $new_name);
|
|
} else {
|
|
&systemcall($useradd, '-d', $home_dir, '-g', $ingroup_name, '-s',
|
|
$shell, '-u', $new_uid, $new_name);
|
|
}
|
|
&invalidate_nscd();
|
|
|
|
create_homedir (1); # copy skeleton data
|
|
|
|
# useradd without -p has left the account disabled (password string is '!')
|
|
my $yesexpr = langinfo(YESEXPR());
|
|
if ($ask_passwd) {
|
|
for (;;) {
|
|
my $passwd = &which('passwd');
|
|
# do _not_ use systemcall() here, since systemcall() dies on
|
|
# non-zero exit code and we need to do special handling here!
|
|
system($passwd, $new_name);
|
|
my $ok = $?>>8;
|
|
if ($ok != 0) {
|
|
my $answer;
|
|
# hm, error, should we break now?
|
|
print (gtx("Permission denied\n")) if ($ok == 1);
|
|
print (gtx("invalid combination of options\n")) if ($ok == 2);
|
|
print (gtx("unexpected failure, nothing done\n")) if ($ok == 3);
|
|
print (gtx("unexpected failure, passwd file missing\n")) if ($ok == 4);
|
|
print (gtx("passwd file busy, try again\n")) if ($ok == 5);
|
|
print (gtx("invalid argument to option\n")) if ($ok == 6);
|
|
|
|
# Translators: [y/N] has to be replaced by values defined in your
|
|
# locale. You can see by running "locale noexpr" which regular
|
|
# expression will be checked to find positive answer.
|
|
print (gtx("Try again? [y/N] "));
|
|
chop ($answer=<STDIN>);
|
|
last if ($answer !~ m/$yesexpr/o);
|
|
}
|
|
else {
|
|
last; ## passwd ok
|
|
}
|
|
}
|
|
} else {
|
|
if(!$disabled_login) {
|
|
my $usermod = &which('usermod');
|
|
&systemcall($usermod, '-p', '*', $new_name);
|
|
}
|
|
}
|
|
|
|
if (defined($new_gecos)) {
|
|
&ch_gecos($new_gecos);
|
|
}
|
|
else {
|
|
my $noexpr = langinfo(NOEXPR());
|
|
for (;;) {
|
|
my $chfn = &which('chfn');
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($chfn, '--extrausers', $new_name);
|
|
} else {
|
|
&systemcall($chfn, $new_name);
|
|
}
|
|
# Translators: [y/N] has to be replaced by values defined in your
|
|
# locale. You can see by running "locale yesexpr" which regular
|
|
# expression will be checked to find positive answer.
|
|
print (gtx("Is the information correct? [Y/n] "));
|
|
chop (my $answer=<STDIN>);
|
|
last if ($answer !~ m/$noexpr/o);
|
|
}
|
|
}
|
|
|
|
if ( ( $add_extra_groups || $config{"add_extra_groups"} ) && defined($config{"extra_groups"}) ) {
|
|
printf (gtx("Adding new user `%s' to extra groups ...\n"), $new_name);
|
|
foreach my $newgrp ( split ' ', $config{"extra_groups"} ) {
|
|
if (!defined getgrnam($newgrp)) {
|
|
warnf (gtx("The group `%s' does not exist.\n"),$newgrp);
|
|
next;
|
|
}
|
|
if (&user_is_member($new_name, $newgrp)) {
|
|
printf gtx("The user `%s' is already a member of `%s'.\n"),
|
|
$new_name,$newgrp if $verbose;
|
|
next;
|
|
|
|
}
|
|
|
|
printf gtx("Adding user `%s' to group `%s' ...\n"),$new_name,$newgrp
|
|
if $verbose;
|
|
&invalidate_nscd();
|
|
my $gpasswd = &which('gpasswd');
|
|
&systemcall($gpasswd, '-M',
|
|
join(',', get_group_members($newgrp), $new_name),
|
|
$newgrp);
|
|
&invalidate_nscd();
|
|
}
|
|
}
|
|
|
|
|
|
if ($config{"quotauser"}) {
|
|
printf (gtx("Setting quota for user `%s' to values of user `%s' ...\n"), $new_name, $config{quotauser});
|
|
my $edquota = &which('edquota');
|
|
&systemcall($edquota, '-p', $config{quotauser}, $new_name);
|
|
}
|
|
|
|
&systemcall('/usr/local/sbin/adduser.local', $new_name, $new_uid,
|
|
$new_gid, $home_dir) if (-x "/usr/local/sbin/adduser.local");
|
|
|
|
exit RET_OK;
|
|
}
|
|
|
|
#
|
|
# we never go here
|
|
#
|
|
|
|
|
|
# calculate home directory
|
|
sub homedir {
|
|
my $dir = $config{"dhome"};
|
|
$dir .= '/' . $_[1] if ($config{"grouphomes"} =~ /yes/i);
|
|
$dir .= '/' . substr($_[0],0,1) if ($config{"letterhomes"} =~ /yes/i);
|
|
$dir .= '/' . $_[0];
|
|
return $dir;
|
|
}
|
|
|
|
|
|
# create_homedir -- create the homedirectory
|
|
# parameter
|
|
# 1: $copy_skeleton:
|
|
# if 0 -> don't copy the skeleton data
|
|
# if 1 -> copy the files in /etc/skel to the newly created home directory
|
|
# return values:
|
|
# none
|
|
sub create_homedir {
|
|
my ($copy_skeleton) = @_;
|
|
|
|
if ($no_create_home) {
|
|
printf gtx("Not creating home directory `%s'.\n"), $home_dir if $verbose;
|
|
}
|
|
elsif (-e $home_dir) {
|
|
printf gtx("The home directory `%s' already exists. Not copying from `%s'.\n"),
|
|
$home_dir,$config{skel} if $verbose && !$no_create_home;
|
|
my @homedir_stat = stat($home_dir);
|
|
my $home_uid = $homedir_stat[4];
|
|
my $home_gid = $homedir_stat[5];
|
|
if (($home_uid != $new_uid) || ($home_gid != $new_gid)) {
|
|
warnf gtx("Warning: The home directory `%s' does not belong to the user you are currently creating.\n"), $home_dir;
|
|
}
|
|
undef @homedir_stat; undef $home_uid; undef $home_gid;
|
|
}
|
|
else {
|
|
printf gtx("Creating home directory `%s' ...\n"),$home_dir if $verbose;
|
|
$undohome = $home_dir;
|
|
&mktree($home_dir) || &cleanup(sprintf(gtx("Couldn't create home directory `%s': %s.\n"), $home_dir, $!));
|
|
chown($new_uid, $new_gid, $home_dir)
|
|
|| &cleanup("chown $new_uid:$new_gid $home_dir: $!\n");
|
|
$dir_mode = get_dir_mode($make_group_also);
|
|
chmod ($dir_mode, $home_dir) ||
|
|
&cleanup("chmod $dir_mode $home_dir: $!\n");
|
|
|
|
if (defined($encrypt_home)) {
|
|
printf gtx("Setting up encryption ...\n") if $verbose;
|
|
&systemcall($ecryptfs_setup_private, '-b', '-u', $new_name);
|
|
}
|
|
|
|
if ($config{"skel"} && $copy_skeleton) {
|
|
printf gtx("Copying files from `%s' ...\n"),$config{skel} if $verbose;
|
|
open(my $FIND, "cd $config{skel}; find . -print |")
|
|
|| &cleanup(sprintf(gtx("fork for `find' failed: %s\n"), $!));
|
|
while (<$FIND>) {
|
|
chop;
|
|
next if ($_ eq ".");
|
|
next if ($_ =~ qr/$config{skel_ignore_regex}/ );
|
|
©_to_dir($config{"skel"}, $_, $home_dir, $new_uid,
|
|
$new_gid, ($config{"setgid_home"} =~ /yes/i));
|
|
}
|
|
}
|
|
|
|
if (defined($encrypt_home)) {
|
|
&systemcall("/bin/umount", $home_dir);
|
|
}
|
|
}
|
|
}
|
|
|
|
# mktree: create a directory and all parent directories, we don't care about the rights and so on
|
|
# parameters:
|
|
# tree: the path
|
|
# return values:
|
|
# none
|
|
sub mktree {
|
|
my($tree) = @_;
|
|
my($done, @path);
|
|
my $default_dir_mode = 0755;
|
|
|
|
$tree =~ s:^/*(.*)/*$:$1:; # chop off leading & trailing slashes
|
|
@path = split(/\//, $tree);
|
|
|
|
$done = "";
|
|
while (@path) {
|
|
$done .= '/' . shift(@path);
|
|
-d $done || mkdir($done, $default_dir_mode) || return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
# existing_user_ok: check if there's already a user present on the system which satisfies the requirements
|
|
# parameter:
|
|
# new_name: the name of the user to check
|
|
# new_uid : the UID of the user
|
|
# return values:
|
|
# 0 if the the user doesn't exist
|
|
# 1 if the user already exists with the specified uid (or $new_uid wasn't specified)
|
|
# 2 if the user already exists, but $new_uid doesn't matches its uid
|
|
sub existing_user_ok {
|
|
my($new_name,$new_uid) = @_;
|
|
my ($dummy1,$dummy2,$uid);
|
|
if (($dummy1,$dummy2,$uid) = getpwnam($new_name)) {
|
|
if( defined($new_uid) && $uid == $new_uid ) {
|
|
return 1;
|
|
}
|
|
if (! defined($new_uid)) {
|
|
return 1;
|
|
}
|
|
# TODO: do we really need this code? Range check shouldn't performed here
|
|
if( $uid >= $config{"first_system_uid"} &&
|
|
$uid <= $config{"last_system_uid" } ) {
|
|
return 2;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
# existing_group_ok: check if there's already a group which satiesfies the requirements
|
|
# parameter:
|
|
# new_name: the name of the group
|
|
# new_gid : the UID of the group
|
|
# return values:
|
|
# 0 if the group doesn't exist
|
|
# 1 if the group already exists with the specified gid (or $new_gid wasn't specified)
|
|
# 2 if the group already exists, but $new_gid doesn't match its gid
|
|
# 3 if the group already exists inside the system range
|
|
sub existing_group_ok {
|
|
my($new_name,$new_gid) = @_;
|
|
my ($dummy1,$dummy2,$gid);
|
|
if (($dummy1,$dummy2,$gid) = getgrnam($new_name)) {
|
|
|
|
# TODO: is this check required? There shouldn't be any gid outside of our allowed range anyways ...
|
|
if( $gid >= $config{"first_system_gid"} &&
|
|
$gid <= $config{"last_system_gid" } ) {
|
|
return 3;
|
|
}
|
|
if (! defined($new_gid)) {
|
|
return 1;
|
|
}
|
|
if ($gid == $new_gid) {
|
|
return 1;
|
|
} else {
|
|
return 2;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
# check_user_group: ???
|
|
# parameters:
|
|
# system: 0 if the user isn't a system user, 1 otherwise
|
|
# return values:
|
|
#
|
|
sub check_user_group {
|
|
my ($system) = @_;
|
|
if( !$system || !existing_user_ok($new_name, $new_uid) ) {
|
|
if( defined getpwnam($new_name) ) {
|
|
if( $system ) {
|
|
dief (gtx("The user `%s' already exists, and is not a system user.\n"),$new_name);
|
|
} else {
|
|
dief (gtx("The user `%s' already exists.\n"),$new_name);
|
|
}
|
|
}
|
|
dief (gtx("The UID %d is already in use.\n"),$new_uid)
|
|
if (defined($new_uid) && getpwuid($new_uid));
|
|
}
|
|
if ($make_group_also) {
|
|
if( !$system || !existing_group_ok($new_name, $new_uid) ) {
|
|
dief (gtx("The group `%s' already exists.\n"),$new_name)
|
|
if (defined getgrnam($new_name));
|
|
dief (gtx("The GID %d is already in use.\n"),$new_uid)
|
|
if (defined($new_uid) && defined(getgrgid($new_uid)));
|
|
}
|
|
}
|
|
else {
|
|
dief (gtx("The group `%s' does not exist.\n"),$ingroup_name)
|
|
if ($ingroup_name && !defined(getgrnam($ingroup_name)));
|
|
dief (gtx("The GID %d does not exist.\n"),$new_gid)
|
|
if (defined($new_gid) && !defined(getgrgid($new_gid)));
|
|
}
|
|
}
|
|
|
|
|
|
# copy_to_dir :
|
|
# parameters:
|
|
# fromdir
|
|
# file
|
|
# todir
|
|
# newi
|
|
# newg
|
|
# sgiddir
|
|
# return values:
|
|
# none
|
|
sub copy_to_dir {
|
|
my($fromdir, $file, $todir, $newu, $newg, $sgiddir) = @_;
|
|
|
|
if (-l "$fromdir/$file") {
|
|
my $target=readlink("$fromdir/$file") or &cleanup("readlink: $!\n");
|
|
my $curgid="$)";
|
|
my $curuid="$>";
|
|
my $error="";
|
|
$)="$newg";
|
|
$>="$newu";
|
|
symlink("$target", "$todir/$file") or $error="$!";
|
|
$>="$curuid";
|
|
$)="$curgid";
|
|
if( "$error" ne "" ) {
|
|
&cleanup("symlink: $!\n");
|
|
}
|
|
return;
|
|
}
|
|
elsif (-f "$fromdir/$file") {
|
|
open (FILE, "$fromdir/$file") || &cleanup("open $fromdir/$file: $!");
|
|
open (NEWFILE, ">$todir/$file") || &cleanup("open >$todir/$file: $!");
|
|
|
|
(print NEWFILE <FILE>) || &cleanup("print $todir/$file: $!");
|
|
close FILE;
|
|
close(NEWFILE) || &cleanup("close $todir/$file ");
|
|
|
|
}
|
|
elsif (-d "$fromdir/$file") {
|
|
mkdir("$todir/$file", 700) || &cleanup("mkdir: $!");
|
|
}
|
|
else {
|
|
&cleanup(sprintf((gtx("Cannot deal with %s.\nIt is not a dir, file, or symlink.\n")), "$fromdir/$file"));
|
|
}
|
|
|
|
chown($newu, $newg, "$todir/$file")
|
|
|| &cleanup("chown $newu:$newg $todir/$file: $!\n");
|
|
$perm = (stat("$fromdir/$file"))[2] & 07777;
|
|
$perm |= 02000 if (-d "$fromdir/$file" && ($perm & 010) && $sgiddir);
|
|
chmod($perm, "$todir/$file") || &cleanup("chmod $todir/$file: $!\n");
|
|
}
|
|
|
|
|
|
# checkname: perform some sanity checks
|
|
# parameters:
|
|
# name: the name to check
|
|
# system: 0 if the user isn't a system user, 1 otherwise
|
|
# return values:
|
|
# none (exits on error)
|
|
sub checkname {
|
|
my ($name, $system) = @_;
|
|
if ($name !~ /^[_.A-Za-z0-9][-\@_.A-Za-z0-9]*\$?$/) {
|
|
printf STDERR
|
|
(gtx("%s: To avoid problems, the username should consist only of
|
|
letters, digits, underscores, periods, at signs and dashes, and not start with
|
|
a dash (as defined by IEEE Std 1003.1-2001). For compatibility with Samba
|
|
machine accounts \$ is also supported at the end of the username\n"), $0);
|
|
exit RET_INVALID_CHARS_IN_NAME;;
|
|
}
|
|
if ($system
|
|
? $name !~ qr/$config{"name_regex_system"}/
|
|
: $name !~ qr/$config{"name_regex"}/) {
|
|
if ($allow_badname) {
|
|
print (gtx("Allowing use of questionable username.\n")) if ($verbose);
|
|
}
|
|
else {
|
|
printf STDERR
|
|
(gtx("%s: Please enter a username matching the regular expression configured
|
|
via the NAME_REGEX[_SYSTEM] configuration variable. Use the `--force-badname'
|
|
option to relax this check or reconfigure NAME_REGEX.\n"), $0);
|
|
exit RET_INVALID_CHARS_IN_NAME;
|
|
}
|
|
}
|
|
}
|
|
|
|
# first_avail_uid: return the first available uid in given range
|
|
# parameters:
|
|
# min, max: the range
|
|
# return values:
|
|
# -1 if no free uid is available
|
|
# otherwise the choosen uid
|
|
sub first_avail_uid {
|
|
my ($min, $max) = @_;
|
|
printf (gtx("Selecting UID from range %d to %d ...\n"),$min,$max) if ($verbose > 1);
|
|
|
|
my $t = $min;
|
|
while ($t <= $max) {
|
|
return $t if (!defined(getpwuid($t)));
|
|
$t++;
|
|
}
|
|
return -1; # nothing available
|
|
}
|
|
|
|
# first_avail_gid: return the first available gid in given range
|
|
# parameters:
|
|
# min, max: the range
|
|
# return values:
|
|
# -1 if no free gid is available
|
|
# otherwise the choosen gid
|
|
sub first_avail_gid {
|
|
my ($min, $max) = @_;
|
|
printf (gtx("Selecting GID from range %d to %d ...\n"),$min,$max) if ($verbose > 1);
|
|
|
|
my $t = $min;
|
|
while ($t <= $max) {
|
|
return $t if (!defined(getgrgid($t)));
|
|
$t++;
|
|
}
|
|
return -1; # nothing available
|
|
}
|
|
|
|
sub ch_gecos {
|
|
my $chfn = &which('chfn');
|
|
my $gecos = shift;
|
|
if($gecos =~ /,/)
|
|
{
|
|
my($gecos_name,$gecos_room,$gecos_work,$gecos_home,$gecos_other)
|
|
= split(/,/,$gecos);
|
|
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($chfn, '--extrausers', '-f', $gecos_name, '-r', $gecos_room, $new_name);
|
|
&systemcall($chfn,'--extrausers','-w',$gecos_work,$new_name)
|
|
if(defined($gecos_work));
|
|
&systemcall($chfn,'--extrausers','-h',$gecos_home,$new_name)
|
|
if(defined($gecos_home));
|
|
&systemcall($chfn,'--extrausers','-o',$gecos_other,$new_name)
|
|
if(defined($gecos_other));
|
|
} else {
|
|
&systemcall($chfn, '-f', $gecos_name, '-r', $gecos_room, $new_name);
|
|
&systemcall($chfn,'-w',$gecos_work,$new_name)
|
|
if(defined($gecos_work));
|
|
&systemcall($chfn,'-h',$gecos_home,$new_name)
|
|
if(defined($gecos_home));
|
|
&systemcall($chfn,'-o',$gecos_other,$new_name)
|
|
if(defined($gecos_other));
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( ($use_extrausers) || ($config{"use_extrausers"}) ) {
|
|
&systemcall($chfn, '--extrausers', '-f', $gecos, $new_name);
|
|
} else {
|
|
&systemcall($chfn, '-f', $gecos, $new_name);
|
|
}
|
|
}
|
|
}
|
|
|
|
# user is member of group?
|
|
sub user_is_member {
|
|
my($user, $group) = @_;
|
|
for (split(/ /, (getgrnam($group))[3])) {
|
|
return 1 if ($user eq $_);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
sub cleanup {
|
|
my ($msg) = @_;
|
|
printf (gtx("Stopped: %s\n"),$msg);
|
|
if ($undohome) {
|
|
printf (gtx("Removing directory `%s' ...\n"),$undohome);
|
|
&systemcall('rm', '-rf', $undohome);
|
|
}
|
|
if ($undouser) {
|
|
printf (gtx("Removing user `%s' ...\n"),$undouser);
|
|
&systemcall('userdel', $undouser);
|
|
}
|
|
if ($undogroup) {
|
|
printf (gtx("Removing group `%s' ...\n"),$undogroup);
|
|
&systemcall('groupdel', $undogroup);
|
|
}
|
|
# do we need to invalidate the nscd cache here, too?
|
|
exit RET_ADDUSER_ABORTED;
|
|
}
|
|
|
|
sub handler {
|
|
my($sig) = @_;
|
|
# Translators: the variable %s is INT, QUIT, or HUP.
|
|
# Please do not insert a space character between SIG and %s.
|
|
&cleanup(sprintf(gtx("Caught a SIG%s.\n"), $sig));
|
|
}
|
|
|
|
|
|
sub version {
|
|
printf (gtx("adduser version %s\n\n"), $version);
|
|
print gtx("Adds a user or group to the system.
|
|
|
|
Copyright (C) 1997, 1998, 1999 Guy Maor <maor\@debian.org>
|
|
Copyright (C) 1995 Ian Murdock <imurdock\@gnu.ai.mit.edu>,
|
|
Ted Hajek <tedhajek\@boombox.micro.umn.edu>
|
|
\n");
|
|
print gtx(
|
|
"This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or (at
|
|
your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License, /usr/share/common-licenses/GPL, for more details.
|
|
");
|
|
}
|
|
|
|
sub usage {
|
|
printf gtx(
|
|
"adduser [--home DIR] [--shell SHELL] [--no-create-home] [--uid ID]
|
|
[--firstuid ID] [--lastuid ID] [--gecos GECOS] [--ingroup GROUP | --gid ID]
|
|
[--disabled-password] [--disabled-login] [--add_extra_groups]
|
|
[--encrypt-home] USER
|
|
Add a normal user
|
|
|
|
adduser --system [--home DIR] [--shell SHELL] [--no-create-home] [--uid ID]
|
|
[--gecos GECOS] [--group | --ingroup GROUP | --gid ID] [--disabled-password]
|
|
[--disabled-login] [--add_extra_groups] USER
|
|
Add a system user
|
|
|
|
adduser --group [--gid ID] GROUP
|
|
addgroup [--gid ID] GROUP
|
|
Add a user group
|
|
|
|
addgroup --system [--gid ID] GROUP
|
|
Add a system group
|
|
|
|
adduser USER GROUP
|
|
Add an existing user to an existing group
|
|
|
|
general options:
|
|
--quiet | -q don't give process information to stdout
|
|
--force-badname allow usernames which do not match the
|
|
NAME_REGEX[_SYSTEM] configuration variable
|
|
--extrausers uses extra users as the database
|
|
--help | -h usage message
|
|
--version | -v version number and copyright
|
|
--conf | -c FILE use FILE as configuration file\n\n");
|
|
}
|
|
|
|
sub get_dir_mode
|
|
{
|
|
my $setgid = shift;
|
|
# no longer make home directories setgid per default (closes: #64806)
|
|
$setgid = 0 unless $config{"setgid_home"} =~ /yes/i;
|
|
|
|
my $dir_mode = $config{"dir_mode"};
|
|
if(!defined($dir_mode) || ! ($dir_mode =~ /[0-7]{3}/ ||
|
|
$dir_mode =~ /[0-7]{4}/))
|
|
{
|
|
$dir_mode = $setgid ? 2755 : 0755;
|
|
}
|
|
else
|
|
{
|
|
$dir_mode = $config{"dir_mode"};
|
|
if($setgid && (length($dir_mode) == 3 || $dir_mode =~ /^[0-1|4-5][0-7]{3}$/))
|
|
{
|
|
$dir_mode += 2000;
|
|
}
|
|
}
|
|
return oct($dir_mode);
|
|
}
|
|
|
|
# Local Variables:
|
|
# mode:cperl
|
|
# cperl-indent-level:4
|
|
# End:
|
|
|
|
# vim:set ai et sts=4 sw=4 tw=0:
|