997 lines
28 KiB
Perl
997 lines
28 KiB
Perl
#!/usr/bin/perl
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#
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# (c) Copyright 1995 Wolfram Schneider. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgement:
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# This product includes software developed by Wolfram Schneider
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# 4. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# /usr/sbin/adduser - add new user(s)
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#
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# Bugs: sure (my english!)
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# Email: Wolfram Schneider <wosch@cs.tu-berlin.de>
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#
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# $Id: adduser,v 1.40 1995/01/08 17:40:09 w Exp w $
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#
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# read variables
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sub variables {
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$verbose = 1; # verbose = [0-2]
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$defaultpasswd = "no"; # use password for new users
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$dotdir = "/usr/share/skel"; # copy dotfiles from this dir
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$send_message = "/etc/adduser.message"; # send message to new user
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$config = "/etc/adduser.conf"; # config file for adduser
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$config_read = 1; # read config file
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$logfile = "/var/log/adduser"; # logfile
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$home = "/home"; # default HOME
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$etc_shells = "/etc/shells";
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$etc_passwd = "/etc/master.passwd";
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$group = "/etc/group";
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$pwd_mkdb = "pwd_mkdb -p"; # program for building passwd database
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if ($test) {
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$home = "/home/w/tmp/adduser/home";
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$etc_shells = "./shells";
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$etc_passwd = "./master.passwd";
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$group = "./group";
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$pwd_mkdb = "pwd_mkdb -p -d .";
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$config = "adduser.conf";
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$send_message = "./adduser.message";
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$logfile = "./log.adduser";
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}
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$ENV{'PATH'} = "/sbin:/bin:/usr/sbin:/usr/bin";
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# List of directories where shells located
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@path = ('/bin', '/usr/bin', '/usr/local/bin');
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# common shells, first element has higher priority
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@shellpref = ('bash', 'tcsh', 'ksh', 'csh', 'sh');
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$defaultshell = 'bash'; # defaultshell if not empty
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$uid_start = 1000; # new users get this uid
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$uid_end = 32000; # max. uid
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# global variables
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$username = ''; # $username{username} = uid
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$uid = ''; # $uid{uid} = username
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$pwgid = ''; # $pwgid{pwgid} = username; gid from passwd db
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$groupname =''; # $groupname{groupname} = gid
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$gid = ''; # $gid{gid} = groupname; gid form group db
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@passwd_backup = '';
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@message_buffer = '';
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@user_variable_list = ''; # user variables in /etc/adduser.conf
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$do_not_delete = '## DO NOT DELETE THIS LINE!';
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}
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# read shell databasem, see also: shells(5)
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sub shells_read {
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local($s, @dummy);
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open(S, $etc_shells) || die "$shells:$!\n";
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while(<S>) {
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if (/^[ \t]*\//) {
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($s, @dummy) = split;
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if (-x $s) {
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$shell{&basename($s)} = $s;
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} else {
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warn "Shell: $s not executable!\n";
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}
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}
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}
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}
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# add new/local shells
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sub shells_add {
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local($e,$dir,@list);
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foreach $e (@shellpref) {
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if (!$shell{$e}) {
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foreach $dir (@path) {
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if (-x "$dir/$e") {
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if ($verbose) {
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if (&confirm_yn("Found shell: $dir/$e. Add to $etc_shells?", "yes")) {
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push(@list, "$dir/$e");
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push(@shellpref, "$dir/$e");
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$shell{&basename("$dir/$e")} = "$dir/$e";
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$changes++;
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}
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} else {
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print "Found unused shell: $dir/$e\n";
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}
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}
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}
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}
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}
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&append_file($etc_shells, @list) if $#list >= 0;
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}
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# choise your favourite shell an return the shell
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sub shell_default {
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local($e,$i,$s);
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local($sh) = $defaultshell;
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# $defaultshell is empty, looking for another shell
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if (!$sh || !$shell{$sh}) {
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$i = 0;
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while($i < $#shellpref) {
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last if $shell{$shellpref[$i]};
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$i++;
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}
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$sh = $shellpref[$i];
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if (!$sh || !$shell{$sh}) {
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warn "No valid shell found in $etc_shells.\n";
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$sh = '';
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}
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}
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if ($verbose) {
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$s = &confirm_list("Enter your default shell:", 0,
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$sh, sort(keys %shell));
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print "Your default shell is: $s -> $shell{$s}\n";
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$changes++ if $s ne $sh;
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return $s;
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} else {
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return $sh;
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}
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}
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# return default home partition, create base directory if nesseccary
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sub home_partition {
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local($h);
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$oldverbose = $verbose if !defined $oldverbose;
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if ($verbose) {
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$h = &confirm_list("Enter your default HOME partition:", 1, $home, "");
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} else {
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$h = $home;
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}
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if ($h !~ "^/") {
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warn "Please use absolute path for home: ``$h''.\n";
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$verbose++;
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$h =~ s|^[^/]+||;
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$home = $h;
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return &home_partition;
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}
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if (-e $h) {
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if (!(-d _ || -l $h)) {
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warn "$h exist, but is it not a directory or symlink!\n";
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$verbose++;
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return &home_partition;
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}
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if (! -w _) {
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warn "$h is not writable!\n";
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$verbose++;
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return &home_partition;
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}
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} else {
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$verbose++;
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return &home_partition unless &mkdirhier($h);
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}
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$verbose = $oldverbose;
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undef $oldverbose;
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$changes++ if $h ne $home;
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return $h;
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}
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# check for valid passwddb
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sub passwd_check {
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print "Check $etc_passwd\n" if $verbose > 0;
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system("$pwd_mkdb $etc_passwd");
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die "\nInvalid $etc_passwd - cannot add any users!\n" if $?;
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}
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# read /etc/passwd
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sub passwd_read {
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local($un, $pw, $ui, $gi, $sh, %shlist);
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print "Check $group\n" if $verbose;
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foreach $sh (keys %shell) {
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$shlist{$shell{$sh}} = $sh; #print "$sh $shell{$sh}\n";
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}
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open(P, "$etc_passwd") || die "$passwd: $!\n";
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while(<P>) {
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chop;
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push(@passwd_backup, $_);
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($un, $pw, $ui, $gi, $sh) = (split(/:/, $_))[0..3,9];
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print "$un already exist with uid: $username{$un}!\n"
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if $username{$un};
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$username{$un} = $ui;
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print "User $un: uid $ui exist twice: $uid{$ui}\n"
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if $uid{$ui} && $verbose && $ui; # don't warn for uid 0
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print "User $un: illegal shell: ``$sh''\n"
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if ((!$shlist{$sh} && $sh) &&
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($un !~ /^(bin|uucp|falcon|nobody)$/));
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$uid{$ui} = $un;
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$pwgid{$gi} = $un;
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}
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close P;
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}
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# read /etc/group
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sub group_read {
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local($gn,$pw,$gi);
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open(G, "$group") || die "$group: $!\n";
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while(<G>) {
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($gn, $pw, $gi) = (split(/:/, $_))[0..2];
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warn "Groupname exist twice: $gn:$gi -> $gn:$groupname{$gn}\n"
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if $groupname{$gn};
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$groupname{$gn} = $gi;
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warn "Groupid exist twice: $gn:$gi -> $gid{$gi}:$gi\n"
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if $gid{$gi};
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$gid{$gi} = $gn;
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}
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close G;
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}
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# check gids /etc/passwd <-> /etc/group
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sub group_check {
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local($e, $user, @list);
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foreach $e (keys %pwgid) {
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if (!$gid{$e}) {
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$user = $pwgid{$e};
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warn "User ``$user'' has gid $e but a group with this " .
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"gid does not exist.\n";
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#warn "Gid $e is defined in $etc_passwd for user ``$user''\n";
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#warn "but not in $group!\n";
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if ($groupname{$user}) {
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warn <<EOF;
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Maybe the gids ($e <-> $groupname{$user}) for user+group ``$user'' are wrong.
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EOF
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} else {
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push(@list, "$user:*:$e:$user")
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if $verbose &&
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&confirm_yn("Add group``$user'' gid $e to $group?", "y");
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}
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}
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}
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&append_file($group, @list) if $#list >= 0;
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}
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#
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# main loop for creating new users
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#
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sub new_users {
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local(@userlist) = @_;
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local($name);
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local($defaultname) = "a-z0-9";
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print "\n" if $verbose;
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print "Ok, let's go.\n" .
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"Don't worry about mistakes. I ask you later for " .
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"correct input.\n" if $verbose;
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while(1) {
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$name = &confirm_list("Enter username", 1, $defaultname, "");
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if ($name !~ /^[a-z0-9]+$/) {
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warn "Wrong username. " .
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"Please use only lowercase characters or digits\n";
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} elsif ($username{$name}) {
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warn "Username ``$name'' already exists!\n";
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} else {
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last;
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}
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}
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local($fullname);
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while(($fullname = &confirm_list("Enter full name", 1, "", "")) =~ /:/) {
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warn "``:'' is not allowed!\n";
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}
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$fullname = $name unless $fullname;
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local($sh) = &confirm_list("Enter shell", 0, $defaultshell, keys %shell);
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$sh = $shell{$sh};
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local($u_id, $g_id) = &next_id($name);
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print <<EOF;
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Name: $name
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Passwd: no, is empty
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Fullname: $fullname
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Uid: $u_id
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Gid: $g_id ($name)
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HOME: $home/$name
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Shell: $sh
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EOF
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if (&confirm_yn("Ok?", "yes")) {
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local($new_entry) =
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"$name::$u_id:$g_id::0:0:$fullname:$home/$name:$sh";
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&append_file($etc_passwd, $new_entry);
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system("$pwd_mkdb $etc_passwd");
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if ($?) {
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local($crash) = "$etc_passwd.crash$$";
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warn "$pwd_mkdb failed, try to restore ...\n";
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open(R, "> $crash") || die "Sorry, give up\n";
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$j = join("\n", @passwd_backup);
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$j =~ s/\n//;
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print R $j . "\n";
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close R;
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system("$pwd_mkdb $crash");
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die "Sorry, give up\n" if $?;
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die "Successfully restore $etc_passwd. Exit.\n";
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}
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# Add new group
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&append_file($group, "$name:*:$g_id:$name")
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unless $groupname{$name};
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# update passwd/group variables
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push(@passwd_backup, $new_entry);
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$username{$name} = $u_id;
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$uid{$u_id} = $name;
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$pwgid{$g_id} = $name;
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$groupname{$name} = $g_id;
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$gid{$g_id} = $name;
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print "Added user ``$name''\n";
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if ($send_message && $send_message ne "no") {
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local($m) = &confirm_list("Send message to ``$name'' and:",
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1, "no", ("second_mail_address", "no"));
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if ($verbose) {
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print "send message to: ``$name''";
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if ($m eq "no") { print "\n" }
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else { print " and ``$m''\n"}
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}
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$m = "" if $m eq "no";
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local($e);
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if (!open(M, "| mail -s Welcome $name $m")) {
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warn "Cannot send mail to: $name $m!\n";
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} else {
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foreach $e (@message_buffer) {
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print M eval "\"$e\"";
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}
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close M;
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}
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}
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local($a) = &confirm_yn("Change password", $defaultpasswd);
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local($empty_password) = "";
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if (($a && $defaultpasswd ne "no" && $defaultpasswd) ||
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(!$a && $defaultpasswd eq "no")) {
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while(1) {
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system("passwd $name");
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if (!$?) { $empty_password = "*"; last }
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last unless
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&confirm_yn("Passwd $name failed. Try again?", "yes");
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}
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}
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&adduser_log("$name:$empty_password:$u_id:$g_id($name):$fullname");
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&home_create($name);
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}
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if (&confirm_yn("Continue with next user?", "yes")) {
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print "\n" if !$verbose;
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&new_users;
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} else {
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print "Good by.\n" if $verbose;
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}
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}
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# ask for password usage
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sub password_default {
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local($p) = $defaultpasswd;
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if ($verbose) {
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$p = &confirm_yn("Use passwords", $defaultpasswd);
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$changes++ unless $p;
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}
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return "yes" if (($defaultpasswd eq "yes" && $p) ||
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($defaultpasswd eq "no" && !$p));
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return "no"; # otherwise
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}
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# misc
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sub check_root {
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die "You are not root!\n" if $< && !$test;
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}
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sub usage {
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warn <<USAGE;
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usage: adduser [options]
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OPTIONS:
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-help this help
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-silent opposite of verbose
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-verbose verbose
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-debug verbose verbose
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-noconfig don't read config-file
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-home home default HOME partition [$home]
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-shell shell default SHELL [$defaultshell]
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-dotdir dir copy files from dir, default [$dotdir]
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-message file send message to new users [$send_message]
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-create_conf create configuration/message file and exit
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USAGE
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exit 1;
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}
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# print banner
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sub copyright {
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print <<EOF;
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(c) Copyright 1995 Wolfram Schneider <wosch@cs.tu-berlin.de>
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EOF
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}
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# hints
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sub hints {
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if ($verbose) {
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print "Use option ``-silent'' if you don't want see " .
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"some warnings & questions.\n\n";
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} else {
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print "Use option ``-verbose'' if you want see more warnings & " .
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"questions \nor try to repair bugs.\n\n";
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}
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}
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#
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sub parse_arguments {
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local(@argv) = @_;
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while ($_ = $argv[0], /^-/) {
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shift @argv;
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last if /^--$/;
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if (/^--?(verbose)$/) { $verbose = 1 }
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elsif (/^--?(silent|guru|wizard|quit)$/) { $verbose = 0 }
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elsif (/^--?(debug)$/) { $verbose = 2 }
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elsif (/^--?(h|help|\?)$/) { &usage }
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elsif (/^--?(home)$/) { $home = $argv[0]; shift @argv }
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elsif (/^--?(shell)$/) { $defaultshell = $argv[0];
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shift @argv }
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elsif (/^--?(dotdir)$/) { $dotdir = $argv[0]; shift @argv }
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elsif (/^--?(message)$/) { $send_message = $argv[0]; shift @argv;
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$sendmessage = 1; }
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# see &config_read
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elsif (/^--?(create_conf)$/) { &create_conf; }
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elsif (/^--?(noconfig)$/) { $config_read = 0; }
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else { &usage }
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}
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#&usage if $#argv < 0;
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}
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sub basename {
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local($name) = @_;
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$name =~ s|.*/||;
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return $name;
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}
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sub dirname {
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local($name) = @_;
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$name =~ s|[/]+$||; # delete any / at end
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$name =~ s|[^/]+$||;
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$name = "/" unless $name; # dirname of / is /
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return $name;
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}
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# return 1 if $file is a readable file or link
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sub filetest {
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local($file, $verb) = @_;
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if (-e $file) {
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if (-f $file || -l $file) {
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return 1 if -r _;
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warn "$file unreadable\n" if $verb;
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} else {
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warn "$file is not a plain file or link\n" if $verb;
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}
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}
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return 0;
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}
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# create configuration files and exit
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sub create_conf {
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$create_conf = 1;
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&message_create($send_message);
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&config_write(1);
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exit(0);
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}
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|
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# log for new user in /var/log/adduser
|
|
sub adduser_log {
|
|
local($string) = @_;
|
|
local($e);
|
|
|
|
return 1 if $logfile eq "no";
|
|
|
|
local($sec, $min, $hour, $mday, $mon, $year) = localtime;
|
|
$mon++;
|
|
|
|
foreach $e ('sec', 'min', 'hour', 'mday', 'mon', 'year') {
|
|
# '7' -> '07'
|
|
eval "\$$e = 0 . \$$e" if (eval "\$$e" < 10);
|
|
}
|
|
|
|
&append_file($logfile, "$year/$mon/$mday $hour:$min:$sec $string");
|
|
}
|
|
|
|
# create HOME directory, copy dotfiles from $dotdir to $HOME
|
|
sub home_create {
|
|
local($name) = @_;
|
|
local(@list);
|
|
local($e,$from, $to);
|
|
|
|
print "Create HOME directory\n" if $verbose;
|
|
if(!mkdir("$home/$name", 0755)) {
|
|
warn "Cannot create HOME directory for user ``$home/$name'': $!\n";
|
|
return 0;
|
|
}
|
|
push(@list, "$home/$name");
|
|
if ($dotdir && $dotdir ne "no") {
|
|
opendir(D, "$dotdir") || warn "$dotdir: $!\n";
|
|
foreach $from (readdir(D)) {
|
|
if ($from !~ /^(\.|\.\.)$/) {
|
|
$to = $from;
|
|
$to =~ s/^dot\././;
|
|
$to = "$home/$name/$to";
|
|
push(@list, $to);
|
|
&cp("$dotdir/$from", "$to", 1);
|
|
}
|
|
}
|
|
closedir D;
|
|
}
|
|
#warn "Chown: $name, $name, @list\n";
|
|
#chown in perl does not work
|
|
system("chown $name:$name @list") || warn "$!\n" && return 0;
|
|
return 1;
|
|
}
|
|
|
|
# makes a directory hierarchy
|
|
sub mkdirhier {
|
|
local($dir) = @_;
|
|
|
|
if ($dir =~ "^/[^/]+$") {
|
|
print "Create /usr/$dir\n" if $verbose;
|
|
if (!mkdir("/usr$dir", 0755)) {
|
|
warn "/usr/$dir: $!\n"; return 0;
|
|
}
|
|
print "Create symlink: /usr$dir -> $dir\n" if $verbose;
|
|
if (!symlink("/usr$dir", $dir)) {
|
|
warn "$dir: $!\n"; return 0;
|
|
}
|
|
} else {
|
|
local($d,$p);
|
|
foreach $d (split('/', $dir)) {
|
|
$dir = "$p/$d";
|
|
$dir =~ s|^//|/|;
|
|
if (! -e "$dir") {
|
|
print "Create $dir\n" if $verbose;
|
|
if (!mkdir("$dir", 0755)) {
|
|
warn "$dir: $!\n"; return 0;
|
|
}
|
|
}
|
|
$p .= "/$d";
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
# Read one of the elements from @list. $confirm is default.
|
|
# If !$allow accept only elements from @list.
|
|
sub confirm_list {
|
|
local($message, $allow, $confirm, @list) = @_;
|
|
local($read, $c, $print);
|
|
|
|
$print = "$message " if $message;
|
|
$print .= "@list ";
|
|
print "$print";
|
|
print "\n " if length($print) > 50;
|
|
print "[$confirm]: ";
|
|
|
|
chop($read = <STDIN>);
|
|
$read =~ s/^[ \t]*//;
|
|
$read =~ s/[ \t\n]*$//;
|
|
return $confirm unless $read;
|
|
return $read if $allow;
|
|
|
|
foreach $c (@list) {
|
|
return $read if $c eq $read;
|
|
}
|
|
warn "$read: is not allowed!\n";
|
|
return &confirm_list($message, $allow, $confirm, @list);
|
|
}
|
|
|
|
# YES or NO question
|
|
# return 1 if &confirm("message", "yes") and answer is yes
|
|
# or if &confirm("message", "no") an answer is no
|
|
# otherwise 0
|
|
sub confirm_yn {
|
|
local($message, $confirm) = @_;
|
|
local($yes) = "^(yes|YES|y|Y)$";
|
|
local($no) = "^(no|NO|n|N)$";
|
|
local($read, $c);
|
|
|
|
if ($confirm && ($confirm =~ "$yes" || $confirm == 1)) {
|
|
$confirm = "y";
|
|
} else {
|
|
$confirm = "n";
|
|
}
|
|
print "$message (y/n) [$confirm]: ";
|
|
chop($read = <STDIN>);
|
|
$read =~ s/^[ \t]*//;
|
|
$read =~ s/[ \t\n]*$//;
|
|
return 1 unless $read;
|
|
|
|
if (($confirm eq "y" && $read =~ "$yes") ||
|
|
($confirm eq "n" && $read =~ "$no")) {
|
|
return 1;
|
|
}
|
|
|
|
if ($read !~ "$yes" && $read !~ "$no") {
|
|
warn "Wrong value. Enter again!\a\n";
|
|
return &confirm_yn($message, $confirm);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# test if $dotdir exist
|
|
sub dotdir_default {
|
|
#$dotdir = "no" unless $dotdir;
|
|
local($dir) = $dotdir;
|
|
local($oldverbose) = $verbose;
|
|
|
|
if ($dir !~ "^/") {
|
|
warn "Please use absulote path for dotdir: ``$dir''\n";
|
|
$dir = "no";
|
|
$verbose++ unless $verbose;
|
|
}
|
|
while($verbose) {
|
|
$dir = &confirm_list("Copy dotfiles from:", 1,
|
|
$dir, ("no", $dir));
|
|
last if $dir eq "no";
|
|
last if (-e $dir && -r _ && (-d _ || -l $dir));
|
|
last if !&confirm_yn("Dotdir ``$dir'' is not a dir. Try again", "yes");
|
|
}
|
|
unless (-e $dir && -r _ && (-d _ || -l $dir)) {
|
|
warn "Directory: $dir does not exist or unreadable.\n"
|
|
if $dir ne "no";
|
|
warn "Do not copy dotfiles.\n";
|
|
$dir = "no";
|
|
}
|
|
$changes++ if $dir ne $dotdir;
|
|
$verbose = $oldverbose;
|
|
return $dir;
|
|
}
|
|
|
|
# ask for messages to new users
|
|
sub message_default {
|
|
local($file) = $send_message;
|
|
local(@d);
|
|
|
|
push(@d, $file);
|
|
push(@d, "no") if $file ne "no";
|
|
if (!&filetest($file, 1) && $file ne "no") {
|
|
if (! -e $file &&
|
|
&confirm_yn("Create message file ``$file''?", "yes")) {
|
|
&message_create($file);
|
|
} else {
|
|
$file = "no";
|
|
}
|
|
}
|
|
|
|
while($verbose) {
|
|
$file = &confirm_list("Send message from file: ", 1,
|
|
$file, @d);
|
|
last if $file eq "no";
|
|
if (&filetest($file, 1)) {
|
|
last;
|
|
} else {
|
|
&message_create($file) if ! -e $file &&
|
|
&confirm_yn("Create ``$file''?", "yes");
|
|
last if &filetest($file, 0);
|
|
last if !&confirm_yn(
|
|
"File ``$file'' does not exist, try again?", "yes");
|
|
}
|
|
}
|
|
if ($file eq "no" || !&filetest($file, 0)) {
|
|
warn "Do not send message\n" if $verbose;
|
|
$file = "no";
|
|
} else {
|
|
&message_read($file);
|
|
}
|
|
|
|
$changes++ if $file ne $send_message;
|
|
return $file;
|
|
}
|
|
|
|
# create message file
|
|
sub message_create {
|
|
local($file) = @_;
|
|
local($dir) = &dirname($file);
|
|
|
|
if (! -d $dir) {
|
|
return 0 unless &mkdirhier($dir);
|
|
}
|
|
if (!open(M, "> $file")) {
|
|
warn "Messagefile ``$file'': $!\n"; return 0;
|
|
}
|
|
print M <<EOF;
|
|
#
|
|
# Message file for adduser(8)
|
|
# comment: ``#''
|
|
# defaultvariables: \$name, \$fullname
|
|
# other variables: see /etc/adduser.conf after
|
|
# line ``$do_not_delete''
|
|
#
|
|
|
|
\$fullname,
|
|
|
|
your account ``\$name'' was created. Have fun!
|
|
|
|
See also chpass(1), finger(1), passwd(1)
|
|
EOF
|
|
close M;
|
|
return 1;
|
|
}
|
|
|
|
# read message file into buffer
|
|
sub message_read {
|
|
local($file) = @_;
|
|
@message_buffer = '';
|
|
|
|
if (!open(R, "$file")) {
|
|
warn "File ``$file'':$!\n"; return 0;
|
|
}
|
|
while(<R>) {
|
|
push(@message_buffer, $_) unless /^[ \t]*#/;
|
|
}
|
|
}
|
|
|
|
# write @list to $file with file-locking
|
|
sub append_file {
|
|
local($file,@list) = @_;
|
|
local($e);
|
|
local($LOCK_EX) = 2;
|
|
local($LOCK_UN) = 8;
|
|
|
|
open(F, ">> $file") || die "$file: $!\n";
|
|
print "Lock $file.\n" if $verbose > 1;
|
|
flock(F, $LOCK_EX);
|
|
print F join("\n", @list) . "\n";
|
|
close F;
|
|
print "Unlock $file.\n" if $verbose > 1;
|
|
flock(F, $LOCK_UN);
|
|
}
|
|
|
|
# return free uid+gid
|
|
# uid == gid if possible
|
|
sub next_id {
|
|
local($group) = @_;
|
|
|
|
# looking for next free uid
|
|
while($uid{$uid_start}) {
|
|
$uid_start++;
|
|
print "$uid_start\n" if $verbose > 1;
|
|
}
|
|
|
|
local($gid_start) = $uid_start;
|
|
# group for user (username==groupname) already exist
|
|
if ($groupname{$group}) {
|
|
$gid_start = $groupname{$group};
|
|
}
|
|
# gid is in use, looking for another gid.
|
|
# Note: uid an gid are not equal
|
|
elsif ($gid{$uid_start}) {
|
|
while($gid{$gid_start} || $uid{$gid_start}) {
|
|
$gid_start--;
|
|
$gid_start = $uid_end if $gid_start < 100;
|
|
}
|
|
}
|
|
return ($uid_start, $gid_start);
|
|
}
|
|
|
|
# cp(1)
|
|
sub cp {
|
|
local($from, $to, $tilde) = @_;
|
|
|
|
if (-e "$to") {
|
|
warn "cp: ``$to'' already exist, do not overwrite\n"; return 0;
|
|
} elsif (!(-f $from || -l $from)) {
|
|
warn "$from is not a file or symlink!\n"; return 0;
|
|
} elsif (!open(F, "$from")) {
|
|
warn "$from: $!\n"; return 0;
|
|
} elsif (!open(T, "> $to")) {
|
|
warn "$to: $!\n"; return 0;
|
|
}
|
|
|
|
if ($tilde) {
|
|
$tilde = $to;
|
|
$tilde =~ s|.*/([^/]+/[^/]+)$|~$1|;
|
|
} else {
|
|
$tilde = $to;
|
|
}
|
|
print "copy $from to $tilde\n" if $verbose;
|
|
while(<F>) {
|
|
print T $_;
|
|
}
|
|
|
|
close F;
|
|
close T;
|
|
return 1;
|
|
}
|
|
|
|
# read config file
|
|
sub config_read {
|
|
local($opt) = @_;
|
|
local($ev); # evaluate variable or list
|
|
local($user_flag) = 0;
|
|
|
|
return 1 if $opt =~ /-(noconfig|create_conf)/; # don't read config file
|
|
|
|
if ($config_read && -f $config) {
|
|
if(!open(C, "$config")) {
|
|
warn "$config: $!\n"; return 0;
|
|
}
|
|
print "Read config file: $config" if $verbose > 1;
|
|
while(<C>) {
|
|
chop;
|
|
/^$do_not_delete/ && $user_flag++;
|
|
if (/^[ \t]*[a-zA-Z_-]+[ \t]*=/) {
|
|
# prepare for evaluating
|
|
s/#.*$//;
|
|
s/^[ \t]+//;
|
|
s/[ \t;]+$//;
|
|
s/[ \t]*=[ \t]*/=/;
|
|
s/=(.*)/="$1"/ unless /=['"(]/;
|
|
|
|
print "$_\n" if $verbose > 1;
|
|
if (/=\(/) { # perl list
|
|
$ev = "\@";
|
|
} else { # perl variable
|
|
$ev = "\$";
|
|
}
|
|
eval "$ev$_" || warn "Ignore garbage: $ev $_\n";
|
|
push(@user_variable_list, "$_\n") if $user_flag;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# write config file
|
|
sub config_write {
|
|
local($silent) = @_;
|
|
|
|
if (($changes || ! -e $config || !$config_read) || $silent) {
|
|
if (!$silent) {
|
|
if (-e $config) {
|
|
return 1 if
|
|
&confirm_yn("\nWrite your changes to $config?", "no");
|
|
} else {
|
|
return 1 unless
|
|
&confirm_yn("\nWrite your configuration to $config?", "yes");
|
|
}
|
|
}
|
|
|
|
local($dir) = &dirname($config);
|
|
if (! -d $dir && !&mkdirhier($dir)) {
|
|
warn "Cannot save your configuration\n";
|
|
return 0;
|
|
}
|
|
|
|
if(!open(C, "> $config")) {
|
|
warn "$config: $!\n"; return 0;
|
|
}
|
|
# prepare some variables
|
|
$send_message = "no" unless $send_message;
|
|
$defaultpasswd = "no" unless $defaultpasswd;
|
|
local($shpref) = "'" . join("', '", @shellpref) . "'";
|
|
local($shpath) = "'" . join("', '", @path) . "'";
|
|
local($user_var) = join('', @user_variable_list);
|
|
|
|
print C <<EOF;
|
|
#
|
|
# $config - automatic generated by adduser(8)
|
|
#
|
|
# Note: adduser read *and* write this file.
|
|
# You may change values, but don't add new things befor the
|
|
# line ``## DO NOT DELETE THIS LINE!''
|
|
#
|
|
|
|
# verbose = [0-2]
|
|
verbose = $verbose
|
|
|
|
# use password for new users
|
|
# defaultpasswd = yes | no
|
|
defaultpasswd = $defaultpasswd
|
|
|
|
# copy dotfiles from this dir ("/usr/share/skel" or "no")
|
|
dotdir = "$dotdir"
|
|
|
|
# send this file to new user ("/etc/adduser.message" or "no")
|
|
send_message = "$send_message"
|
|
|
|
# config file for adduser ("/etc/adduser.conf")
|
|
config = "$config"
|
|
|
|
# logfile ("/var/log/adduser" or "no")
|
|
logfile = "$logfile"
|
|
|
|
# default HOME directory ("/home")
|
|
home = "$home"
|
|
|
|
# List of directories where shells located
|
|
# path = ('/bin', '/usr/bin', '/usr/local/bin')
|
|
path = ($shpath)
|
|
|
|
# common shell list, first element has higher priority
|
|
# shellpref = ('bash', 'tcsh', 'ksh', 'csh', 'sh')
|
|
shellpref = ($shpref)
|
|
|
|
# defaultshell if not empty ("bash")
|
|
defaultshell = "$defaultshell"
|
|
|
|
# new users get this uid (1000)
|
|
uid_start = 1000
|
|
|
|
$do_not_delete
|
|
## your own variables, see /etc/adduser.message
|
|
## Warning: this may be a security hole!
|
|
$user_var
|
|
|
|
# end
|
|
EOF
|
|
close C;
|
|
}
|
|
}
|
|
|
|
################
|
|
# main
|
|
#
|
|
$test = 0; # test mode, only for development
|
|
|
|
# init
|
|
#&usage if $ARGV[0] =~ /^--?(help|h|\?)$/; # help if you are not root
|
|
&check_root; # you must be root to run this script!
|
|
&variables; # initialize variables
|
|
&config_read(@ARGV); # read variables form config-file
|
|
&parse_arguments(@ARGV); # parse arguments
|
|
|
|
#
|
|
©right;
|
|
&hints;
|
|
|
|
# check
|
|
$changes = 0;
|
|
&passwd_check; # check for valid passwdb
|
|
&shells_read; # read /etc/shells
|
|
&passwd_read; # read /etc/master.passwd
|
|
&group_read; # read /etc/group
|
|
&group_check; # check for incon*
|
|
|
|
# some questions
|
|
&shells_add; # maybe add some new shells
|
|
$defaultshell = &shell_default; # enter default shell
|
|
$home = &home_partition; # find HOME partition
|
|
$dotdir = &dotdir_default; # check $dotdir
|
|
$send_message = &message_default; # send message to new user
|
|
$defaultpasswd = &password_default; # maybe use password
|
|
&config_write(0); # write variables in file
|
|
|
|
# main loop for creating new users
|
|
&new_users; # add new users
|
|
|
|
#end
|