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#!/usr/bin/perl -w
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#
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# adduser VERSION
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#
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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 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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# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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#
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####################
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# the program can be called as:
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#
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# adduser [--home DIR] [--uid ID] [--ingroup GROUP | --gid ID]
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# [--disabled-password] [--gecos GECOS] user
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# add a normal user to the system
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# example: adduser fred
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# $action = "adduser"
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#
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# adduser --group [--gid ID] group
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# addgroup [--gid ID] group
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# add a system group
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# example: addgroup --quiet www-data
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# $action = "addgroup"
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#
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# adduser --system [--home DIR] [--uid ID] [--group | --ingroup GROUP
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# | --gid ID] [--disabled-password] [--gecos GECOS] user
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# add a system user. Create a like-named, like-id'd group with
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# --group, add to an existing group with --ingroup or --gid. Add
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# to "nogroup" with neither.
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# example: adduser --system --home /home/gopher-data --group gopher
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# $action = "addsysuser"
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#
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# adduser user group
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# add the existing user to an existing group.
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# $action = "addusertogroup"
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#
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# all commands take the following options:
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# --quiet don't give progress information on STDOUT
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# --force-badname disable checking of names for funny characters
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# --help usage message
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# --version version number and copyright
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# --conf FILE use FILE instead of /etc/adduser.conf
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############
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$verbose = 1; # should we be verbose?
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$allow_badname = 0; # should we allow bad names?
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$ask_passwd = 1; # ask for a passwd?
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$defaults = "/etc/adduser.conf";
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$nogroup_id = getgrnam("nogroup") || 65534;
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$0 =~ s+.*/++;
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$config{"dshell"} = "/bin/bash";
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$config{"first_system_uid"} = 100;
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$config{"last_system_uid"} = 999;
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$config{"first_uid"} = 1000;
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$config{"last_uid"} = 29999;
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$config{"dhome"} = "/home";
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$config{"skel"} = "/etc/skel";
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$config{"usergroups"} = "yes";
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$config{"users_gid"} = "100";
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$config{"grouphomes"} = "no";
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$config{"letterhomes"} = "no";
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$config{"quotauser"} = "";
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$action = $0 eq "addgroup" ? "addgroup" : "adduser";
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while ($arg = shift(@ARGV)) {
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die "$0: No options allowed after names.\n"
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if ($names[0] && $arg =~ /^--/);
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if ($arg eq "--quiet") {
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$verbose = 0;
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} elsif ($arg eq "--force-badname") {
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$allow_badname = 1;
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} elsif ($arg eq "--help") {
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&usage();
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exit 0;
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} elsif ($arg eq "--version") {
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&version();
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exit 0;
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} elsif ($arg eq "--system") {
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$action = "addsysuser";
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} elsif ($arg eq "--group") {
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$found_group_opt = 1;
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} elsif ($arg eq "--ingroup") {
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die "$0: --ingroup requires an argument.\n"
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if (!($ingroup_name = shift(@ARGV)));
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} elsif ($arg eq "--home") {
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die "$0: --home requires an argument.\n"
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if (!($special_home = shift(@ARGV)));
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print "$0: Warning: The home dir you specified already exists.\n"
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if (-d $special_home && $verbose);
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die "$0: The home dir must be an absolute path.\n"
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if ($special_home !~ m+^/+ );
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} elsif ($arg eq "--gecos") {
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$new_gecos = shift(@ARGV);
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} elsif ($arg eq "--disabled-password") {
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$ask_passwd = 0;
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} elsif ($arg eq "--uid") {
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die "$0: --uid requires a numeric argument.\n"
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if (!($new_uid = shift(@ARGV)) || $new_uid !~ /^\d+$/);
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} elsif ($arg eq "--gid") {
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die "$0: --gid requires a numeric argument.\n"
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if (!($new_gid = shift(@ARGV)) || $new_gid !~ /^\d+$/);
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} elsif ($arg eq "--conf") {
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die "$0: --conf requires an argument.\n"
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if (!($defaults = shift(@ARGV)));
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die "$0: `$defaults' doesn't exist.\n"
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if (! -f $defaults);
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} elsif ($arg eq "--debug") {
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$debugging = 1;
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} elsif ($arg =~ /^--/) { # bad argument!
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die "$0: Unknown argument `$arg'.\n";
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} else { # it's a username
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push (@names, $arg);
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}
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}
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die "$0: Only root may add a user or group to the system.\n" if ($> != 0);
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die "$0: I need a name to add.\n" if (@names == 0);
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die "$0: No more than two names.\n" if (@names > 2);
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if (@names == 2) { # must be addusertogroup
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die "$0: Specify only one name in this mode.\n"
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if ($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 {
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$new_name = shift (@names);
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}
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if ($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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else {
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$action = "addgroup";
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}
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}
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die "$0: --group, --ingroup, and --gid options are mutually exclusive.\n" if
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($action ne "addgroup" &&
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defined($found_group_opt) +defined($ingroup_name) +defined($new_gid) > 1);
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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 = "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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# $existing_group - the group to add her to
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#####
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&read_config($defaults);
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&checkname($new_name) if $new_name;
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$SIG{'INT'} = $SIG{'QUIT'} = $SIG{'HUP'} = 'handler';
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##############
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## addgroup ##
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##############
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if ($action eq "addgroup") {
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die "$0: The group `$new_name' already exists.\n"
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if (getgrnam($new_name));
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die "$0: The GID `$new_gid' is already in use.\n"
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if (defined($new_gid) && getgrgid($new_gid));
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if (!defined($new_gid)) {
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$new_gid = &first_avail_id($config{"first_system_uid"},
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$config{"last_system_uid"},
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&get_current_gids);
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die "$0: No GID is available in the range ",
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"$config{\"first_system_uid\"} - $config{\"last_system_uid\"}\n",
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"(FIRST_SYS_UID - LAST_SYS_UID). ",
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"Group `$new_name' not created.\n" if ($new_gid == -1);
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}
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print "Adding group $new_name ($new_gid)...\n" if $verbose;
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&systemcall('groupadd', '-g', $new_gid, $new_name);
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print "Done.\n" if $verbose;
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exit 0;
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}
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####################
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## addusertogroup ##
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####################
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elsif ($action eq "addusertogroup") {
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die "$0: The user `$existing_user' doesn't exist.\n"
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if (!getpwnam($existing_user));
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die "$0: The group `$existing_group' doesn't exist.\n"
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if (!getgrnam($existing_group));
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if (&user_is_member($existing_user, $existing_group)) {
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print "The user `$existing_user' is already a member of ",
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"`$existing_group'.\n" if $verbose;
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exit 0; # not really an error
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}
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print "Adding user $existing_user to group $existing_group...\n"
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if $verbose;
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&systemcall('usermod', '-G',
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join(",", get_users_groups($existing_user), $existing_group),
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$existing_user);
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print "Done.\n" if $verbose;
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exit 0;
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}
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################
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## addsysuser ##
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################
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elsif ($action eq "addsysuser") {
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$new_gid = $nogroup_id
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if (!$ingroup_name && !defined($new_gid) && !$make_group_also);
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&check_user_group();
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print "Adding system user $new_name...\n" if $verbose;
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| 248 |
if (!defined($new_uid) && $make_group_also) {
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$new_uid = &first_avail_id($config{"first_system_uid"},
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$config{"last_system_uid"},
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&get_current_uids, &get_current_gids);
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die "$0: No UID/GID pair is available in the range ",
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"$config{\"first_system_uid\"} - $config{\"last_system_uid\"}\n",
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"(FIRST_SYS_UID - LAST_SYS_UID). ",
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"User `$new_name' not created.\n" if ($new_uid == -1);
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$new_gid = $new_uid;
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$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_id($config{"first_system_uid"},
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$config{"last_system_uid"},
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&get_current_uids);
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die "$0: No UID is available in the range ",
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"$config{\"first_system_uid\"} - $config{\"last_system_uid\"}\n",
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"(FIRST_SYS_UID - LAST_SYS_UID). ",
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"User `$new_name' not created.\n" if ($new_uid == -1);
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if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
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elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
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else { die "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 { die "Internal error"; }
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}
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| 278 |
if ($make_group_also) {
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print "Adding new group $new_name ($new_gid).\n" if $verbose;
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$undogroup = $new_name;
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&systemcall('groupadd', '-g', $new_gid, $new_name);
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}
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| 284 |
print "Adding new user $new_name ($new_uid) with group $ingroup_name.\n"
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| 285 |
if $verbose;
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$home_dir = $special_home || &homedir($new_name, $ingroup_name);
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$undouser = $new_name;
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&systemcall('useradd', '-d', $home_dir, '-g', $ingroup_name, '-s',
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| 289 |
'/bin/false', '-u', $new_uid, $new_name);
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&systemcall('chfn', '-f', $new_gecos, $new_name) if ($new_gecos);
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| 291 |
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| 292 |
if (-d $home_dir) {
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print "Home directory $home_dir already exists.\n" if $verbose;
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| 294 |
} else {
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print "Creating home directory $home_dir.\n" if $verbose;
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$undohome = $home_dir;
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| 297 |
&mktree($home_dir) || &cleanup("Couldn't create $home_dir: $!.\n");
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| 298 |
chown($new_uid, $new_gid, $home_dir)
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| 299 |
|| &cleanup("chown $new_uid:$new_gid $home_dir: $!\n");
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| 300 |
$dir_mode = $make_group_also ? 02755 : 0755;
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| 301 |
chmod ($dir_mode, $home_dir) ||
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| 302 |
&cleanup("chmod $dir_mode $home_dir: $!\n");
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| 303 |
}
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| 304 |
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| 305 |
exit 0;
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| 306 |
}
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| 309 |
#############
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| 310 |
## adduser ##
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| 311 |
#############
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| 312 |
elsif ($action eq "adduser") {
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| 313 |
if (!$ingroup_name && !defined($new_gid)) {
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| 314 |
if ($config{"usergroups"} eq "yes") { $make_group_also = 1; }
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| 315 |
else { $new_gid = $config{"users_gid"}; }
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| 316 |
}
|
| 317 |
&check_user_group();
|
| 318 |
print "Adding user $new_name...\n" if $verbose;
|
| 319 |
|
| 320 |
if (!defined($new_uid) && $make_group_also) {
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| 321 |
$new_uid = &first_avail_id($config{"first_uid"},
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| 322 |
$config{"last_uid"},
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| 323 |
&get_current_uids, &get_current_gids);
|
| 324 |
die "$0: No UID/GID pair is available in the range ",
|
| 325 |
"$config{\"first_uid\"} - $config{\"last_uid\"}\n",
|
| 326 |
"(FIRST_UID - LAST_UID). ",
|
| 327 |
"User `$new_name' not created.\n" if ($new_uid == -1);
|
| 328 |
$new_gid = $new_uid;
|
| 329 |
$ingroup_name = $new_name;
|
| 330 |
}
|
| 331 |
elsif (!defined($new_uid) && !$make_group_also) {
|
| 332 |
$new_uid = &first_avail_id($config{"first_uid"},
|
| 333 |
$config{"last_uid"},
|
| 334 |
&get_current_uids);
|
| 335 |
die "$0: No UID is available in the range ",
|
| 336 |
"$config{\"first_uid\"} - $config{\"last_uid\"}\n",
|
| 337 |
"(FIRST_UID - LAST_UID). ",
|
| 338 |
"User `$new_name' not created.\n" if ($new_uid == -1);
|
| 339 |
if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
|
| 340 |
elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
|
| 341 |
else { die "Internal error"; }
|
| 342 |
}
|
| 343 |
else {
|
| 344 |
if (defined($new_gid)) { $ingroup_name = getgrgid($new_gid); }
|
| 345 |
elsif ($ingroup_name) { $new_gid = getgrnam($ingroup_name); }
|
| 346 |
elsif ($make_group_also){ $new_gid=$new_uid; $ingroup_name=$new_name; }
|
| 347 |
else { die "Internal error"; }
|
| 348 |
}
|
| 349 |
|
| 350 |
if ($make_group_also) {
|
| 351 |
print "Adding new group $new_name ($new_gid).\n" if $verbose;
|
| 352 |
$undogroup = $new_name;
|
| 353 |
&systemcall('groupadd', '-g', $new_gid, $new_name);
|
| 354 |
}
|
| 355 |
|
| 356 |
print "Adding new user $new_name ($new_uid) with group $ingroup_name.\n"
|
| 357 |
if $verbose;
|
| 358 |
$home_dir = $special_home || &homedir($new_name, $ingroup_name);
|
| 359 |
$undouser = $new_name;
|
| 360 |
&systemcall('useradd', '-d', $home_dir, '-g', $ingroup_name, '-s',
|
| 361 |
$config{dshell}, '-u', $new_uid, $new_name);
|
| 362 |
|
| 363 |
if (-d $home_dir) {
|
| 364 |
print "Home directory $home_dir already exists. Not copying from",
|
| 365 |
" $config{skel}\n" if $verbose;
|
| 366 |
}
|
| 367 |
else {
|
| 368 |
print "Creating home directory $home_dir.\n" if $verbose;
|
| 369 |
$undohome = $home_dir;
|
| 370 |
&mktree($home_dir) || &cleanup("Couldn't create $home_dir: $!.\n");
|
| 371 |
chown($new_uid, $new_gid, $home_dir)
|
| 372 |
|| &cleanup("chown $new_uid:$new_gid $home_dir: $!\n");
|
| 373 |
$dir_mode = $make_group_also ? 02755 : 0755;
|
| 374 |
chmod ($dir_mode, $home_dir) ||
|
| 375 |
&cleanup("chmod $dir_mode $home_dir: $!\n");
|
| 376 |
|
| 377 |
if ($config{"skel"}) {
|
| 378 |
print "Copying files from $config{skel}\n" if $verbose;
|
| 379 |
open(FIND, "cd $config{skel}; find . -print |")
|
| 380 |
|| &cleanup("fork for find: $!\n");
|
| 381 |
while (<FIND>) {
|
| 382 |
chop;
|
| 383 |
next if ($_ eq ".");
|
| 384 |
©_to_dir($config{"skel"}, $_, $home_dir, $new_uid,
|
| 385 |
$new_gid, $make_group_also);
|
| 386 |
}
|
| 387 |
}
|
| 388 |
}
|
| 389 |
|
| 390 |
if ($ask_passwd) {
|
| 391 |
&systemcall('passwd', $new_name);
|
| 392 |
}
|
| 393 |
|
| 394 |
if ($new_gecos) {
|
| 395 |
&systemcall('chfn', '-f', $new_gecos, $new_name);
|
| 396 |
}
|
| 397 |
else {
|
| 398 |
for (;;) {
|
| 399 |
&systemcall('chfn', $new_name);
|
| 400 |
print "Is the information correct? [y/n] ";
|
| 401 |
chop ($answer=<STDIN>);
|
| 402 |
last if ($answer =~ /^y/i);
|
| 403 |
}
|
| 404 |
}
|
| 405 |
|
| 406 |
if ($config{"quotauser"}) {
|
| 407 |
print "Setting quota from $config{quotauser}.\n";
|
| 408 |
&systemcall('edquota', '-p', $config{quotauser}, $new_name);
|
| 409 |
}
|
| 410 |
|
| 411 |
&systemcall('/usr/local/sbin/adduser.local', $new_name, $new_uid,
|
| 412 |
$new_gid, $home_dir) if (-x "/usr/local/sbin/adduser.local");
|
| 413 |
|
| 414 |
exit 0;
|
| 415 |
}
|
| 416 |
|
| 417 |
|
| 418 |
# calculate home directory
|
| 419 |
sub homedir {
|
| 420 |
my $dir = $config{"dhome"};
|
| 421 |
$dir .= '/' . $_[1] if ($config{"grouphomes"} =~ /yes/i);
|
| 422 |
$dir .= '/' . substr($_[0],0,1) if ($config{"letterhomes"} =~ /yes/i);
|
| 423 |
$dir .= '/' . $_[0];
|
| 424 |
}
|
| 425 |
|
| 426 |
|
| 427 |
# create a directory and all leading directories
|
| 428 |
sub mktree {
|
| 429 |
my($tree) = @_;
|
| 430 |
my($done, @path);
|
| 431 |
my $default_dir_mode = 0755;
|
| 432 |
|
| 433 |
$tree =~ s:^/*(.*)/*$:$1:; # chop off leading & trailing slashes
|
| 434 |
@path = split(/\//, $tree);
|
| 435 |
|
| 436 |
$done = "";
|
| 437 |
while (@path) {
|
| 438 |
$done .= '/' . shift(@path);
|
| 439 |
-d $done || mkdir($done, $default_dir_mode) || return 0;
|
| 440 |
}
|
| 441 |
1;
|
| 442 |
}
|
| 443 |
|
| 444 |
|
| 445 |
sub check_user_group() {
|
| 446 |
die "$0: The user `$new_name' already exists.\n" if (getpwnam($new_name));
|
| 447 |
die "$0: The UID `$new_uid' already exists.\n"
|
| 448 |
if (defined($new_uid) && getpwuid($new_uid));
|
| 449 |
if ($make_group_also) {
|
| 450 |
die "$0: The group `$new_name' already exists.\n"
|
| 451 |
if (getgrnam($new_name));
|
| 452 |
die "$0: The GID `$new_uid' already exists.\n"
|
| 453 |
if (defined($new_uid) && getgrgid($new_uid));
|
| 454 |
}
|
| 455 |
else {
|
| 456 |
die "$0: The group `$ingroup_name' doesn't exist.\n"
|
| 457 |
if ($ingroup_name && !getgrnam($ingroup_name));
|
| 458 |
die "$0: The GID `$new_gid' doesn't exist.\n"
|
| 459 |
if (defined($new_gid) && !getgrgid($new_gid));
|
| 460 |
}
|
| 461 |
}
|
| 462 |
|
| 463 |
|
| 464 |
# copy files, directories, symlinks
|
| 465 |
sub copy_to_dir {
|
| 466 |
my($fromdir, $file, $todir, $newu, $newg, $sgiddir) = @_;
|
| 467 |
|
| 468 |
if (-l "$fromdir/$file") {
|
| 469 |
symlink(readlink("$fromdir/$file"), "$todir/$file")
|
| 470 |
|| &cleanup("symlink: $!\n");
|
| 471 |
}
|
| 472 |
elsif (-f "$fromdir/$file") {
|
| 473 |
open (FILE, "$fromdir/$file") || &cleanup("open $fromdir/$file: $!");
|
| 474 |
open (NEWFILE, ">$todir/$file") || &cleanup("open >$todir/$file: $!");
|
| 475 |
|
| 476 |
(print NEWFILE <FILE>) || &cleanup("print $todir/$file: $!");
|
| 477 |
close FILE;
|
| 478 |
close(NEWFILE) || &cleanup("close $todir/$file ");
|
| 479 |
|
| 480 |
}
|
| 481 |
elsif (-d "$fromdir/$file") {
|
| 482 |
mkdir("$todir/$file", 700) || &cleanup("mkdir: $!");
|
| 483 |
}
|
| 484 |
else {
|
| 485 |
&cleanup("Can't deal with $fromdir/$file. "
|
| 486 |
."Not a dir, file, or symlink.\n");
|
| 487 |
}
|
| 488 |
|
| 489 |
chown($newu, $newg, "$todir/$file")
|
| 490 |
|| &cleanup("chown $newu:$newg $todir/$file: $!\n");
|
| 491 |
$perm = (stat("$fromdir/$file"))[2] & 07777;
|
| 492 |
$perm |= 02000 if (-d "$fromdir/$file" && ($perm & 010) && $sgiddir);
|
| 493 |
chmod($perm, "$todir/$file") || &cleanup("chmod $todir/$file: $!\n");
|
| 494 |
}
|
| 495 |
|
| 496 |
|
| 497 |
# is name ok?
|
| 498 |
sub checkname {
|
| 499 |
my ($name) = @_;
|
| 500 |
if ($allow_badname && $name !~ /^[A-Za-z_][-_A-Za-z0-9]*$/) {
|
| 501 |
print STDERR
|
| 502 |
"$0: To avoid problems, the username should consist of a letter or
|
| 503 |
underscore followed by letters, digits, underscores, and dashes.\n";
|
| 504 |
exit 1;
|
| 505 |
}
|
| 506 |
elsif ($name !~ /^[a-z][a-z0-9]*$/) {
|
| 507 |
if (!$allow_badname) {
|
| 508 |
print STDERR
|
| 509 |
"$0: Please enter a username consisting of a lower case letter
|
| 510 |
followed by lower case letters and numbers. Use the `--force-badname'
|
| 511 |
option to allow underscores, dashes, and uppercase.\n";
|
| 512 |
exit 1;
|
| 513 |
}
|
| 514 |
print "Allowing use of questionable username.\n" if ($verbose);
|
| 515 |
}
|
| 516 |
}
|
| 517 |
|
| 518 |
|
| 519 |
# return the smallest X such that
|
| 520 |
# $min <= X <= $max, and X is not an element of @ids
|
| 521 |
# or -1 if no such X
|
| 522 |
sub first_avail_id {
|
| 523 |
my ($min, $max, @ids) = @_;
|
| 524 |
@ids = sort {$a <=> $b} @ids;
|
| 525 |
print "Selecting from $min $max (" . join(",",@ids) . ").\n" if $debugging;
|
| 526 |
|
| 527 |
while ($min <= $max) {
|
| 528 |
return $min if ($min < $ids[0] || @ids==0);
|
| 529 |
shift @ids if ($min > $ids[0]);
|
| 530 |
$min++ if ($min == $ids[0]);
|
| 531 |
}
|
| 532 |
|
| 533 |
-1; # nothing available
|
| 534 |
}
|
| 535 |
|
| 536 |
|
| 537 |
# return an array containing all the GIDs
|
| 538 |
sub get_current_gids {
|
| 539 |
my(@gids, $gid);
|
| 540 |
setgrent;
|
| 541 |
push @gids, $gid while defined($gid = (getgrent)[2]);
|
| 542 |
endgrent;
|
| 543 |
@gids;
|
| 544 |
}
|
| 545 |
|
| 546 |
|
| 547 |
# return an array containing all the UIDs
|
| 548 |
sub get_current_uids {
|
| 549 |
my(@uids, $uid);
|
| 550 |
setpwent;
|
| 551 |
push @uids, $uid while defined($uid = (getpwent)[2]);
|
| 552 |
endpwent;
|
| 553 |
@uids;
|
| 554 |
}
|
| 555 |
|
| 556 |
|
| 557 |
# return a user's groups
|
| 558 |
sub get_users_groups {
|
| 559 |
my($user) = @_;
|
| 560 |
my($name,$members,@groups);
|
| 561 |
setgrent;
|
| 562 |
while (($name,$members) = (getgrent)[0,3]) {
|
| 563 |
for (split(/ /, $members)) {
|
| 564 |
if ($user eq $_) {
|
| 565 |
push @groups, $name;
|
| 566 |
last;
|
| 567 |
}
|
| 568 |
}
|
| 569 |
}
|
| 570 |
endgrent;
|
| 571 |
@groups;
|
| 572 |
}
|
| 573 |
|
| 574 |
|
| 575 |
# user is member of group?
|
| 576 |
sub user_is_member {
|
| 577 |
my($user, $group) = @_;
|
| 578 |
for (split(/ /, (getgrnam($group))[3])) {
|
| 579 |
return 1 if ($user eq $_);
|
| 580 |
}
|
| 581 |
0;
|
| 582 |
}
|
| 583 |
|
| 584 |
|
| 585 |
# parse the configuration file
|
| 586 |
sub read_config {
|
| 587 |
my ($conf_file) = @_;
|
| 588 |
my ($var, $lcvar, $val);
|
| 589 |
|
| 590 |
if (! -f $conf_file) {
|
| 591 |
print "$0: $conf_file doesn't exist. Using defaults.\n" if $verbose;
|
| 592 |
return;
|
| 593 |
}
|
| 594 |
|
| 595 |
open (CONF, $conf_file) || die "$0: $conf_file: $!\n";
|
| 596 |
while (<CONF>) {
|
| 597 |
chomp;
|
| 598 |
next if /^#/ || /^\s*$/;
|
| 599 |
|
| 600 |
if ((($var, $val) = /^\s*(\S+)\s*=\s*(.*)/) != 2) {
|
| 601 |
warn "$0: Couldn't parse $conf_file:$..\n";
|
| 602 |
next;
|
| 603 |
}
|
| 604 |
$lcvar = lc $var;
|
| 605 |
if (!defined($config{$lcvar})) {
|
| 606 |
warn "$0: Unknown variable `$var' at $conf_file:$..\n";
|
| 607 |
next;
|
| 608 |
}
|
| 609 |
|
| 610 |
$val =~ s/^"(.*)"$/$1/;
|
| 611 |
$val =~ s/^'(.*)'$/$1/;
|
| 612 |
|
| 613 |
$config{$lcvar} = $val;
|
| 614 |
}
|
| 615 |
|
| 616 |
close CONF || die "$!";
|
| 617 |
}
|
| 618 |
|
| 619 |
|
| 620 |
sub systemcall {
|
| 621 |
my $c = join(' ', @_);
|
| 622 |
print "$c\n" if $debugging;
|
| 623 |
system(@_) && &cleanup("$0: `$c' returned error code $?. Aborting.\n");
|
| 624 |
}
|
| 625 |
|
| 626 |
|
| 627 |
sub cleanup {
|
| 628 |
print "@{_}Cleaning up.\n";
|
| 629 |
if ($undohome) {
|
| 630 |
print "Removing directory `$undohome'\n";
|
| 631 |
system('rm', '-rf', $undohome);
|
| 632 |
}
|
| 633 |
if ($undouser) {
|
| 634 |
print "Removing user `$undouser'.\n";
|
| 635 |
system('userdel', $undouser);
|
| 636 |
}
|
| 637 |
if ($undogroup) {
|
| 638 |
print "Removing group `$undogroup'.\n";
|
| 639 |
system('groupdel', $undogroup);
|
| 640 |
}
|
| 641 |
exit 1;
|
| 642 |
}
|
| 643 |
|
| 644 |
|
| 645 |
sub handler {
|
| 646 |
my($sig) = @_;
|
| 647 |
&cleanup("Caught a SIG$sig.\n");
|
| 648 |
}
|
| 649 |
|
| 650 |
|
| 651 |
sub version {
|
| 652 |
print "$0: add a user or group to the system. Version VERSION
|
| 653 |
Copyright (C) 1997 Guy Maor <maor\@debian.org>
|
| 654 |
Copyright (C) 1995 Ian Murdock <imurdock\@gnu.ai.mit.edu>,
|
| 655 |
Ted Hajek <tedhajek\@boombox.micro.umn.edu>,
|
| 656 |
|
| 657 |
This program is free software; you can redistribute it and/or modify
|
| 658 |
it under the terms of the GNU General Public License as published by
|
| 659 |
the Free Software Foundation; either version 2 of the License, or (at
|
| 660 |
your option) any later version.
|
| 661 |
|
| 662 |
This program is distributed in the hope that it will be useful, but
|
| 663 |
WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 664 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 665 |
General Public License, /usr/doc/copyright/GPL, for more details.
|
| 666 |
";
|
| 667 |
}
|
| 668 |
|
| 669 |
|
| 670 |
sub usage {
|
| 671 |
print "adduser [--home DIR] [--uid ID] [--ingroup GROUP | --gid ID]
|
| 672 |
[--disabled-password] [--gecos GECOS] user
|
| 673 |
Add a normal user
|
| 674 |
|
| 675 |
adduser --system [--home DIR] [--uid ID] [--group | --ingroup GROUP |
|
| 676 |
--gid ID] [--disabled-password] [--gecos GECOS] user
|
| 677 |
Add a system user
|
| 678 |
|
| 679 |
adduser --group [--gid ID] group
|
| 680 |
addgroup [--gid ID] group
|
| 681 |
Add a system group
|
| 682 |
|
| 683 |
adduser user group
|
| 684 |
Add an existing user to an existing group
|
| 685 |
|
| 686 |
Global configuration is in the file $defaults.
|
| 687 |
Other options are [--quiet] [--force-badname] [--help] [--version] [--conf
|
| 688 |
FILE].
|
| 689 |
";
|
| 690 |
}
|
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| 
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