1#!/usr/bin/perl 2# 3# $OpenBSD: adduser.perl,v 1.39 2002/07/10 19:57:31 millert Exp $ 4# 5# Copyright (c) 1995-1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin. 6# All rights reserved. 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29# $From: adduser.perl,v 1.22 1996/12/07 21:25:12 ache Exp $ 30 31use IPC::Open2; 32use Fcntl qw(:DEFAULT :flock); 33 34################ 35# main 36# 37$test = 0; # test mode, only for development 38$check_only = 0; 39 40$SIG{'INT'} = 'cleanup'; 41$SIG{'QUIT'} = 'cleanup'; 42$SIG{'HUP'} = 'cleanup'; 43$SIG{'TERM'} = 'cleanup'; 44 45&check_root; # you must be root to run this script! 46&variables; # initialize variables 47&config_read(@ARGV); # read variables from config-file 48&parse_arguments(@ARGV); # parse arguments 49 50if (!$check_only && $#batch < 0) { 51 &hints; 52} 53 54# check 55$changes = 0; 56&variable_check; # check for valid variables 57&passwd_check; # check for valid passwdb 58&shells_read; # read /etc/shells 59&passwd_read; # read /etc/master.passwd 60&group_read; # read /etc/group 61&group_check; # check for incon* 62exit 0 if $check_only; # only check consistence and exit 63 64exit(!&batch(@batch)) if $#batch >= 0; # batch mode 65 66# Interactive: 67# main loop for creating new users 68&new_users; # add new users 69 70#end 71 72 73# Set adduser "default" variables internally before groking config file 74# Adduser.conf supercedes these 75sub variables { 76 $verbose = 1; # verbose = [0-2] 77 $defaultpasswd = "yes"; # use password for new users 78 $dotdir = "/etc/skel"; # copy dotfiles from this dir 79 $dotdir_bak = $dotdir; 80 $send_message = "no"; # send message to new user 81 $send_message_bak = '/etc/adduser.message'; 82 $config = "/etc/adduser.conf"; # config file for adduser 83 $config_read = 1; # read config file 84 $logfile = "/var/log/adduser"; # logfile 85 $home = "/home"; # default HOME 86 $etc_shells = "/etc/shells"; 87 $etc_passwd = "/etc/master.passwd"; 88 $etc_ptmp = "/etc/ptmp"; 89 $group = "/etc/group"; 90 $pwd_mkdb = "pwd_mkdb -p"; # program for building passwd database 91 $encryptionmethod = "blowfish"; 92 $rcsid = '$OpenBSD: adduser.perl,v 1.39 2002/07/10 19:57:31 millert Exp $'; 93 94 # List of directories where shells located 95 @path = ('/bin', '/usr/bin', '/usr/local/bin'); 96 # common shells, first element has higher priority 97 @shellpref = ('csh', 'sh', 'bash', 'tcsh', 'ksh'); 98 99 @encryption_methods = ('blowfish', 'md5', 'des', 'old'); 100 101 $defaultshell = 'sh'; # defaultshell if not empty 102 $group_uniq = 'USER'; 103 $defaultgroup = $group_uniq;# login groupname, $group_uniq means username 104 105 $uid_start = 1000; # new users get this uid 106 $uid_end = 2147483647; # max. uid 107 108 # global variables 109 # passwd 110 %username = (); # $username{username} = uid 111 %uid = (); # $uid{uid} = username 112 %pwgid = (); # $pwgid{pwgid} = username; gid from passwd db 113 114 $password = ''; # password for new users 115 116 # group 117 %groupname = (); # $groupname{groupname} = gid 118 %groupmembers = (); # $groupmembers{gid} = members of group/kommalist 119 %gid = (); # $gid{gid} = groupname; gid form group db 120 121 # shell 122 %shell = (); # $shell{`basename sh`} = sh 123 124 # only for me (=Wolfram) 125 if ($test) { 126 $home = "/home/w/tmp/adduser/home"; 127 $etc_shells = "./shells"; 128 $etc_passwd = "./master.passwd"; 129 $group = "./group"; 130 $pwd_mkdb = "pwd_mkdb -p -d ."; 131 $config = "adduser.conf"; 132 $send_message = "./adduser.message"; 133 $logfile = "./log.adduser"; 134 } 135 136 umask 022; # don't give login group write access 137 138 $ENV{'PATH'} = "/sbin:/bin:/usr/sbin:/usr/bin"; 139 @passwd_backup = (); 140 @group_backup = (); 141 @message_buffer = (); 142 @user_variable_list = (); # user variables in /etc/adduser.conf 143 $do_not_delete = '## DO NOT DELETE THIS LINE!'; 144} 145 146# read shell database, see also: shells(5) 147sub shells_read { 148 local($sh); 149 local($err) = 0; 150 151 print "Reading $etc_shells\n" if $verbose; 152 open(S, $etc_shells) || die "$etc_shells: $!\n"; 153 154 while(<S>) { 155 if (/^\s*\//) { 156 s/^\s*//; s/\s+.*//; # chop 157 $sh = $_; 158 if (-x $sh) { 159 $shell{&basename($sh)} = $sh; 160 } else { 161 warn "Shell: $sh not executable!\n"; 162 $err++; 163 } 164 } 165 } 166 167 push(@list, "/sbin/nologin"); 168 &shell_pref_add("nologin"); 169 $shell{"nologin"} = "/sbin/nologin"; 170 171 return $err; 172} 173 174# add new shells if possible 175sub shells_add { 176 local($sh,$dir,@list); 177 178 return 1 unless $verbose; 179 180 foreach $sh (@shellpref) { 181 # all known shells 182 if (!$shell{$sh}) { 183 # shell $sh is not defined as login shell 184 foreach $dir (@path) { 185 if (-x "$dir/$sh") { 186 # found shell 187 if (&confirm_yn("Found shell: $dir/$sh. Add to $etc_shells?", "yes")) { 188 push(@list, "$dir/$sh"); 189 &shell_pref_add("$sh"); 190 $shell{&basename("$dir/$sh")} = "$dir/$sh"; 191 $changes++; 192 } 193 } 194 } 195 } 196 } 197 &append_file($etc_shells, @list) if $#list >= 0; 198} 199 200# add shell to preference list without duplication 201sub shell_pref_add { 202 local($new_shell) = @_; 203 local($shell); 204 205 foreach $shell (@shellpref) { 206 return if ($shell eq $new_shell); 207 } 208 push(@shellpref, $new_shell); 209} 210 211# choose your favourite shell and return the shell 212sub shell_default { 213 local($e,$i,$new_shell); 214 local($sh); 215 216 $sh = &shell_default_valid($defaultshell); 217 return $sh unless $verbose; 218 219 $new_shell = &confirm_list("Enter your default shell:", 0, 220 $sh, sort(keys %shell)); 221 print "Your default shell is: $new_shell -> $shell{$new_shell}\n"; 222 $changes++ if $new_shell ne $sh; 223 return $new_shell; 224} 225 226sub shell_default_valid { 227 local($sh) = @_; 228 local($s,$e); 229 230 return $sh if $shell{$sh}; 231 232 foreach $e (@shellpref) { 233 $s = $e; 234 last if defined($shell{$s}); 235 } 236 $s = "sh" unless $s; 237 warn "Shell ``$sh'' is undefined, use ``$s''\n"; 238 return $s; 239} 240 241# return default home partition (f.e. "/home") 242# create base directory if necessary 243sub home_partition { 244 local($home) = @_; 245 $home = &stripdir($home); 246 local($h) = $home; 247 248 return $h if !$verbose && $h eq &home_partition_valid($h); 249 250 while(1) { 251 $h = &confirm_list("Enter your default HOME partition:", 1, $home, ""); 252 $h = &stripdir($h); 253 last if $h eq &home_partition_valid($h); 254 } 255 256 $changes++ if $h ne $home; 257 return $h; 258} 259 260sub home_partition_valid { 261 local($h) = @_; 262 263 $h = &stripdir($h); 264 # all right (I hope) 265 return $h if $h =~ "^/" && -e $h && -w _ && (-d _ || -l $h); 266 267 # Errors or todo 268 if ($h !~ "^/") { 269 warn "Please use absolute path for home: ``$h''.\a\n"; 270 return 0; 271 } 272 273 if (-e $h) { 274 warn "$h exists, but is not a directory or symlink!\n" 275 unless -d $h || -l $h; 276 warn "$h is not writable!\n" 277 unless -w $h; 278 return 0; 279 } else { 280 # create home partition 281 return $h if &mkdir_home($h); 282 } 283 return 0; 284} 285 286# check for valid passwddb 287sub passwd_check { 288 system(split(/\s+/, "$pwd_mkdb -c $etc_passwd")); 289 die "\nInvalid $etc_passwd - cannot add any users!\n" if $?; 290} 291 292# read /etc/passwd 293sub passwd_read { 294 local($p_username, $pw, $p_uid, $p_gid, $sh); 295 296 print "Check $etc_passwd\n" if $verbose; 297 open(P, "$etc_passwd") || die "$etc_passwd: $!\n"; 298 299 # we only use this to lock the password file 300 sysopen(PTMP, $etc_ptmp, O_RDWR|O_CREAT|O_EXCL, 0600) || 301 die "Password file busy\n"; 302 303 while(<P>) { 304 chop; 305 push(@passwd_backup, $_); 306 ($p_username, $pw, $p_uid, $p_gid, $sh) = (split(/:/, $_))[0..3,9]; 307 308 print "$p_username already exists with uid: $username{$p_username}!\n" 309 if $username{$p_username} && $verbose; 310 $username{$p_username} = $p_uid; 311 print "User $p_username: uid $p_uid exists twice: $uid{$p_uid}\n" 312 if $uid{$p_uid} && $verbose && $p_uid; # don't warn for uid 0 313 print "User $p_username: illegal shell: ``$sh''\n" 314 if ($verbose && $sh && 315 !$shell{&basename($sh)} && 316 $p_username !~ /^(news|xten|bin|nobody|uucp)$/ && 317 $sh !~ /\/(pppd|sliplogin)$/); 318 $uid{$p_uid} = $p_username; 319 $pwgid{$p_gid} = $p_username; 320 } 321 close P; 322} 323 324# read /etc/group 325sub group_read { 326 local($g_groupname,$pw,$g_gid, $memb); 327 328 print "Check $group\n" if $verbose; 329 open(G, "$group") || die "$group: $!\n"; 330 while(<G>) { 331 chop; 332 push(@group_backup, $_); 333 ($g_groupname, $pw, $g_gid, $memb) = (split(/:/, $_))[0..3]; 334 335 $groupmembers{$g_gid} = $memb; 336 warn "Groupname exists twice: $g_groupname:$g_gid -> $g_groupname:$groupname{$g_groupname}\n" 337 if $groupname{$g_groupname} && $verbose; 338 $groupname{$g_groupname} = $g_gid; 339 warn "Groupid exists twice: $g_groupname:$g_gid -> $gid{$g_gid}:$g_gid\n" 340 if $gid{$g_gid} && $verbose; 341 $gid{$g_gid} = $g_groupname; 342 } 343 close G; 344} 345 346# check gids /etc/passwd <-> /etc/group 347sub group_check { 348 local($c_gid, $c_username, @list); 349 350 foreach $c_gid (keys %pwgid) { 351 if (!$gid{$c_gid}) { 352 $c_username = $pwgid{$c_gid}; 353 warn "User ``$c_username'' has gid $c_gid but a group with this " . 354 "gid does not exist.\n" if $verbose; 355 } 356 } 357} 358 359# 360# main loop for creating new users 361# 362 363# return username 364sub new_users_name { 365 local($name); 366 367 while(1) { 368 $name = &confirm_list("Enter username", 1, "a-z0-9_-", ""); 369 if (length($name) > 31) { 370 warn "Username is longer than 31 characters\a\n"; 371 next; 372 } 373 last if (&new_users_name_valid($name) eq $name); 374 } 375 return $name; 376} 377 378sub new_users_name_valid { 379 local($name) = @_; 380 381 if ($name !~ /^[a-z0-9_][a-z0-9_\-]*$/ || $name eq "a-z0-9_-") { 382 warn "Illegal username. " . 383 "Please use only lowercase characters or digits\a\n"; 384 return 0; 385 } elsif ($username{$name}) { 386 warn "Username ``$name'' already exists!\a\n"; return 0; 387 } 388 return $name; 389} 390 391# return full name 392sub new_users_fullname { 393 local($name) = @_; 394 local($fullname); 395 396 while(1) { 397 $fullname = &confirm_list("Enter full name", 1, "", ""); 398 last if $fullname eq &new_users_fullname_valid($fullname); 399 } 400 $fullname = $name unless $fullname; 401 return $fullname; 402} 403 404sub new_users_fullname_valid { 405 local($fullname) = @_; 406 407 return $fullname if $fullname !~ /:/; 408 409 warn "``:'' is not allowed!\a\n"; 410 return 0; 411} 412 413# return shell (full path) for user 414sub new_users_shell { 415 local($sh); 416 417 $sh = &confirm_list("Enter shell", 0, $defaultshell, keys %shell); 418 return $shell{$sh}; 419} 420 421# return free uid and gid 422sub new_users_id { 423 local($name) = @_; 424 local($u_id, $g_id) = &next_id($name); 425 local($u_id_tmp, $e); 426 427 while(1) { 428 $u_id_tmp = &confirm_list("Uid", 1, $u_id, ""); 429 last if $u_id_tmp =~ /^[0-9]+$/ && $u_id_tmp <= $uid_end && 430 ! $uid{$u_id_tmp}; 431 if ($uid{$u_id_tmp}) { 432 warn "Uid ``$u_id_tmp'' in use!\a\n"; 433 } else { 434 warn "Wrong uid.\a\n"; 435 } 436 } 437 # use calculated uid 438 return ($u_id_tmp, $g_id) if $u_id_tmp eq $u_id; 439 # recalculate gid 440 $uid_start = $u_id_tmp; 441 return &next_id($name); 442} 443 444# add user to group 445sub add_group { 446 local($gid, $name) = @_; 447 448 return 0 if 449 $groupmembers{$gid} =~ /^(.*,)?$name(,.*)?$/; 450 451 $groupmembers_bak{$gid} = $groupmembers{$gid}; 452 $groupmembers{$gid} .= "," if $groupmembers{$gid}; 453 $groupmembers{$gid} .= "$name"; 454 455 local(@l) = split(',', $groupmembers{$gid}); 456 # group(5): A group cannot have more than 200 members. 457 # The maximum line length of /etc/group is 1024 characters. 458 # Longer lines will be skiped. 459 if ($#l >= 200 || 460 length($groupmembers{$gid}) > 1024 - 50) { # 50 is for group name 461 warn "WARNING, group line ``$gid{$gid}'' is either too long or has\n" . 462 "too many users in the group, see group(5)\a\n"; 463 } 464 return $name; 465} 466 467 468# return login group 469sub new_users_grplogin { 470 local($name, $defaultgroup, $new_users_ok) = @_; 471 local($group_login, $group); 472 473 $group = $name; 474 $group = $defaultgroup if $defaultgroup ne $group_uniq; 475 476 if ($new_users_ok) { 477 # clean up backup 478 foreach $e (keys %groupmembers_bak) { delete $groupmembers_bak{$e}; } 479 } else { 480 # restore old groupmembers, user was not accept 481 foreach $e (keys %groupmembers_bak) { 482 $groupmembers{$e} = $groupmembers_bak{$e}; 483 } 484 } 485 486 while(1) { 487 $group_login = &confirm_list("Login group", 1, $group, 488 ($name, $group)); 489 last if $group_login eq $group; 490 last if $group_login eq $name; 491 last if defined $groupname{$group_login}; 492 if ($group_login eq $group_uniq) { 493 $group_login = $name; last; 494 } 495 496 if (defined $gid{$group_login}) { 497 # convert numeric groupname (gid) to groupname 498 $group_login = $gid{$group_login}; 499 last; 500 } 501 warn "Group does not exist!\a\n"; 502 } 503 504 #if (defined($groupname{$group_login})) { 505 # &add_group($groupname{$group_login}, $name); 506 #} 507 508 return ($group_login, $group_uniq) if $group_login eq $name; 509 return ($group_login, $group_login); 510} 511 512# return login group 513sub new_users_grplogin_batch { 514 local($name, $defaultgroup) = @_; 515 local($group_login, $group); 516 517 $group_login = $name; 518 $group_login = $defaultgroup if $defaultgroup ne $group_uniq; 519 520 if (defined $gid{$group_login}) { 521 # convert numeric groupname (gid) to groupname 522 $group_login = $gid{$group_login}; 523 } 524 525 # if (defined($groupname{$group_login})) { 526 # &add_group($groupname{$group_login}, $name); 527 # } 528 529 return $group_login 530 if defined($groupname{$group_login}) || $group_login eq $name; 531 warn "Group ``$group_login'' does not exist\a\n"; 532 return 0; 533} 534 535# return other groups (string) 536sub new_users_groups { 537 local($name, $other_groups) = @_; 538 local($string) = 539 "Login group is ``$group_login''. Invite $name into other groups:"; 540 local($e, $flag); 541 local($new_groups,$groups); 542 543 $other_groups = "no" unless $other_groups; 544 545 while(1) { 546 $groups = &confirm_list($string, 1, $other_groups, 547 ("no", $other_groups, "guest")); 548 # no other groups 549 return "" if $groups eq "no"; 550 551 ($flag, $new_groups) = &new_users_groups_valid($groups); 552 last unless $flag; 553 } 554 $new_groups =~ s/\s*$//; 555 return $new_groups; 556} 557 558sub new_users_groups_valid { 559 local($groups) = @_; 560 local($e, $new_groups); 561 local($flag) = 0; 562 563 foreach $e (split(/[,\s]+/, $groups)) { 564 # convert numbers to groupname 565 if ($e =~ /^[0-9]+$/ && $gid{$e}) { 566 $e = $gid{$e}; 567 } 568 if (defined($groupname{$e})) { 569 if ($e eq $group_login) { 570 # do not add user to a group if this group 571 # is also the login group. 572 } elsif (&add_group($groupname{$e}, $name)) { 573 $new_groups .= "$e "; 574 } else { 575 warn "$name is already member of group ``$e''\n"; 576 } 577 } else { 578 warn "Group ``$e'' does not exist\a\n"; $flag++; 579 } 580 } 581 return ($flag, $new_groups); 582} 583 584# your last change 585sub new_users_ok { 586 587 print <<EOF; 588 589Name: $name 590Password: **** 591Fullname: $fullname 592Uid: $u_id 593Gid: $g_id ($group_login) 594Groups: $group_login $new_groups 595HOME: $home/$name 596Shell: $sh 597EOF 598 599 return &confirm_yn("OK?", "yes"); 600} 601 602# make password database 603sub new_users_pwdmkdb { 604 local($last) = @_; 605 local($user); 606 607 $user = (split(/:/, $last))[0]; 608 system(split(/\s+/, "$pwd_mkdb -u $user $etc_passwd")); 609 if ($?) { 610 warn "$last\n"; 611 warn "``$pwd_mkdb'' failed\n"; 612 exit($? >> 8); 613 } 614} 615 616# update group database 617sub new_users_group_update { 618 local($e, @a); 619 620 # Add *new* group 621 if (!defined($groupname{$group_login}) && !defined($gid{$g_id})) { 622 push(@group_backup, "$group_login:*:$g_id:"); 623 $groupname{$group_login} = $g_id; 624 $gid{$g_id} = $group_login; 625 # $groupmembers{$g_id} = $group_login; 626 } 627 628 if ($new_groups || defined($groupname{$group_login}) || 629 defined($gid{$groupname{$group_login}}) && 630 $gid{$groupname{$group_login}} ne "+") { 631 # new user is member of some groups 632 # new login group is already in name space 633 rename($group, "$group.bak"); 634 #warn "$group_login $groupname{$group_login} $groupmembers{$groupname{$group_login}}\n"; 635 foreach $e (sort {$a <=> $b} (keys %gid)) { 636 push(@a, "$gid{$e}:*:$e:$groupmembers{$e}"); 637 } 638 &append_file($group, @a); 639 } else { 640 &append_file($group, "$group_login:*:$g_id:"); 641 } 642 643} 644 645sub new_users_passwd_update { 646 # update passwd/group variables 647 push(@passwd_backup, $new_entry); 648 $username{$name} = $u_id; 649 $uid{$u_id} = $name; 650 $pwgid{$g_id} = $name; 651} 652 653# send message to new user 654sub new_users_sendmessage { 655 return 1 if $send_message eq "no"; 656 657 local($cc) = 658 &confirm_list("Send message to ``$name'' and:", 659 1, "no", ("root", "second_mail_address", 660 "no carbon copy")); 661 local($e); 662 $cc = "" if $cc eq "no"; 663 664 @message_buffer = (); 665 message_read ($send_message); 666 667 foreach $e (@message_buffer) { 668 print eval "\"$e\""; 669 } 670 print "\n"; 671 672 local(@message_buffer_append) = (); 673 if (!&confirm_yn("Add anything to default message", "no")) { 674 print "Use ``.'' or ^D alone on a line to finish your message.\n"; 675 push(@message_buffer_append, "\n"); 676 while($read = <STDIN>) { 677 last if $read eq "\.\n"; 678 push(@message_buffer_append, $read); 679 } 680 } 681 682 &sendmessage("$name $cc", (@message_buffer, @message_buffer_append)) 683 if (&confirm_yn("Send message", "yes")); 684} 685 686sub sendmessage { 687 local($to, @message) = @_; 688 local($e); 689 690 if (!open(M, "| mail -s Welcome $to")) { 691 warn "Cannot send mail to: $to!\n"; 692 return 0; 693 } else { 694 foreach $e (@message) { 695 print M eval "\"$e\""; 696 } 697 close M; 698 } 699} 700 701 702sub new_users_password { 703 704 # empty password 705 return "" if $defaultpasswd ne "yes"; 706 707 local($password); 708 709 while(1) { 710 system("stty", "-echo"); 711 $password = &confirm_list("Enter password", 1, "", ""); 712 system("stty", "echo"); 713 print "\n"; 714 if ($password ne "") { 715 system("stty", "-echo"); 716 $newpass = &confirm_list("Enter password again", 1, "", ""); 717 system("stty", "echo"); 718 print "\n"; 719 last if $password eq $newpass; 720 print "They didn't match, please try again\n"; 721 } 722 elsif (!&confirm_yn("Set the password so that user cannot logon?", "no")) { 723 last; 724 } 725 } 726 727 return $password; 728} 729 730 731sub new_users { 732 733 print "\n" if $verbose; 734 print "Ok, let's go.\n" . 735 "Don't worry about mistakes. I will give you the chance later to " . 736 "correct any input.\n" if $verbose; 737 738 # name: Username 739 # fullname: Full name 740 # sh: shell 741 # u_id: user id 742 # g_id: group id 743 # group_login: groupname of g_id 744 # new_groups: some other groups 745 local($name, $group_login, $fullname, $sh, $u_id, $g_id, $new_groups); 746 local($groupmembers_bak, $cryptpwd); 747 local($new_users_ok) = 1; 748 749 750 $new_groups = "no" unless $groupname{$new_groups}; 751 752 while(1) { 753 $name = &new_users_name; 754 $fullname = &new_users_fullname($name); 755 $sh = &new_users_shell; 756 ($u_id, $g_id) = &new_users_id($name); 757 ($group_login, $defaultgroup) = 758 &new_users_grplogin($name, $defaultgroup, $new_users_ok); 759 # do not use uniq username and login group 760 $g_id = $groupname{$group_login} if (defined($groupname{$group_login})); 761 762 $new_groups = &new_users_groups($name, $new_groups); 763 $password = &new_users_password; 764 765 766 if (&new_users_ok) { 767 $new_users_ok = 1; 768 769 $cryptpwd = "*"; # Locked by default 770 $cryptpwd = encrypt($password, &salt) if ($password ne ""); 771 772 # obscure perl bug 773 $new_entry = "$name\:" . "$cryptpwd" . 774 "\:$u_id\:$g_id\::0:0:$fullname:$home/$name:$sh"; 775 &append_file($etc_passwd, "$new_entry"); 776 &new_users_pwdmkdb("$new_entry"); 777 &new_users_group_update; 778 &new_users_passwd_update; print "Added user ``$name''\n"; 779 &adduser_log("$name:*:$u_id:$g_id($group_login):$fullname"); 780 &home_create($name, $group_login); 781 &new_users_sendmessage; 782 } else { 783 $new_users_ok = 0; 784 } 785 if (!&confirm_yn("Add another user?", "yes")) { 786 print "Goodbye!\n" if $verbose; 787 last; 788 } 789 print "\n" if !$verbose; 790 } 791} 792 793sub batch { 794 local($name, $groups, $fullname, $password) = @_; 795 local($sh); 796 797 $defaultshell = &shell_default_valid($defaultshell); 798 return 0 unless $home = &home_partition_valid($home); 799 return 0 if $dotdir ne &dotdir_default_valid($dotdir); 800 $send_message = &message_default; 801 802 return 0 if $name ne &new_users_name_valid($name); 803 $sh = $shell{$defaultshell}; 804 ($u_id, $g_id) = &next_id($name); 805 $group_login = &new_users_grplogin_batch($name, $defaultgroup); 806 return 0 unless $group_login; 807 $g_id = $groupname{$group_login} if (defined($groupname{$group_login})); 808 ($flag, $new_groups) = &new_users_groups_valid($groups); 809 return 0 if $flag; 810 811 $cryptpwd = "*"; # Locked by default 812 if ($password ne "" && $password ne "*") { 813 if($unencrypted) { $cryptpwd = encrypt($password, &salt) } 814 else { $cryptpwd = $password } 815 } 816 # obscure perl bug 817 $new_entry = "$name\:" . "$cryptpwd" . 818 "\:$u_id\:$g_id\::0:0:$fullname:$home/$name:$sh"; 819 &append_file($etc_passwd, "$new_entry"); 820 &new_users_pwdmkdb("$new_entry"); 821 &new_users_group_update; 822 &new_users_passwd_update; print "Added user ``$name''\n"; 823 &sendmessage($name, @message_buffer) if $send_message ne "no"; 824 &adduser_log("$name:*:$u_id:$g_id($group_login):$fullname"); 825 &home_create($name, $group_login); 826} 827 828# ask for password usage 829sub password_default { 830 local($p) = $defaultpasswd; 831 if ($verbose) { 832 $p = &confirm_yn("Prompt for passwords by default", $defaultpasswd); 833 $changes++ unless $p; 834 } 835 return "yes" if (($defaultpasswd eq "yes" && $p) || 836 ($defaultpasswd eq "no" && !$p)); 837 return "no"; # otherwise 838} 839 840# get default encryption method 841sub encryption_default { 842 local($m) = ""; 843 if ($verbose) { 844 while (&encryption_check($m) == 0) { 845 $m = &confirm_list("Default encryption method for passwords:", 1, 846 $encryption_methods[0], @encryption_methods); 847 } 848 } 849 return($m); 850} 851 852# Confirm that we have a valid encryption method 853sub encryption_check { 854 local($m) = $_[0]; 855 856 foreach $i (@encryption_methods) { 857 if ($m eq $i) { return 1; } 858 } 859 860 if ($m =~ /^blowfish,(\d+)$/) { return 1; } 861 return 0; 862} 863 864# misc 865sub check_root { 866 die "You are not root!\n" if $< && !$test; 867} 868 869sub usage { 870 warn <<USAGE; 871usage: adduser 872 [-batch username [group[,group]...] [fullname] [password]] 873 [-check_only] 874 [-config_create] 875 [-dotdir dotdir] 876 [-e|-encryption method] 877 [-group login_group] 878 [-h|-help] 879 [-home home] 880 [-message message_file] 881 [-noconfig] 882 [-shell shell] 883 [-s|-silent|-q|-quiet] 884 [-uid_start uid_start] 885 [-uid_end uid_end] 886 [-unencrypted] 887 [-v|-verbose] 888 889home=$home shell=$defaultshell dotdir=$dotdir login_group=$defaultgroup 890message_file=$send_message uid_start=$uid_start uid_end=$uid_end 891USAGE 892 exit 1; 893} 894 895# uniq(1) 896sub uniq { 897 local(@list) = @_; 898 local($e, $last = "", @array); 899 900 foreach $e (sort @list) { 901 push(@array, $e) unless $e eq $last; 902 $last = $e; 903 } 904 return @array; 905} 906 907# Generate an appropriate argument to encrypt() 908# That may be a DES salt or a blowfish rotation count 909sub salt { 910 local($salt); # initialization 911 if ($encryptionmethod eq "des" || $encryptionmethod eq "old") { 912 local($i, $rand); 913 local(@itoa64) = ( '0' .. '9', 'a' .. 'z', 'A' .. 'Z' ); # 0 .. 63 914 915 warn "calculate salt\n" if $verbose > 1; 916 917 for ($i = 0; $i < 8; $i++) { 918 srand(time + $rand + $$); 919 $rand = rand(25*29*17 + $rand); 920 $salt .= $itoa64[$rand & $#itoa64]; 921 } 922 } elsif ($encryptionmethod eq "md5") { 923 $salt = ""; 924 } elsif ($encryptionmethod =~ /^blowfish/ ) { 925 ($encryptionmethod, $salt) = split(/\,/, $encryptionmethod); 926 if ($salt eq "") { $salt = 7; } # default rounds inf unspecified 927 } else { 928 warn "$encryptionmethod encryption method invalid\n" if ($verbose > 0); 929 warn "Falling back to blowfish,7...\n" if ($verbose > 0); 930 $encryptionmethod = "blowfish"; 931 $salt = 7; 932 } 933 934 warn "Salt is: $salt\n" if $verbose > 1; 935 936 return $salt; 937} 938 939# Encrypt a password using the selected method 940sub encrypt { 941 local($pass, $salt) = ($_[0], $_[1]); 942 local($args, $crypt); 943 944 if ($encryptionmethod eq "des" || $encryptionmethod eq "old") { 945 $args = "-s $salt"; 946 } elsif ($encryptionmethod eq "md5") { 947 $args = "-m"; 948 } elsif ($encryptionmethod eq "blowfish") { 949 $args = "-b $salt"; 950 } 951 952 open2(\*ENCRD, \*ENCWR, "/usr/bin/encrypt $args"); 953 print ENCWR "$pass\n"; 954 close ENCWR; 955 $crypt = <ENCRD>; 956 close ENCRD; 957 chomp $crypt; 958 die "encrypt failed" if (wait == -1 || $? != 0); 959 return($crypt); 960} 961 962# hints 963sub hints { 964 if ($verbose) { 965 print "Use option ``-silent'' if you don't want to see " . 966 "all warnings and questions.\n\n"; 967 } 968} 969 970# 971sub parse_arguments { 972 local(@argv) = @_; 973 974 while ($_ = $argv[0], /^-/) { 975 shift @argv; 976 last if /^--$/; 977 if (/^--?(v|verbose)$/) { $verbose = 1 } 978 elsif (/^--?(s|silent|q|quiet)$/) { $verbose = 0 } 979 elsif (/^--?(debug)$/) { $verbose = 2 } 980 elsif (/^--?(h|help|\?)$/) { &usage } 981 elsif (/^--?(home)$/) { $home = $argv[0]; shift @argv } 982 elsif (/^--?(shell)$/) { $defaultshell = $argv[0]; shift @argv } 983 elsif (/^--?(dotdir)$/) { $dotdir = $argv[0]; shift @argv } 984 elsif (/^--?(uid_start)$/) { $uid_start = $argv[0]; shift @argv } 985 elsif (/^--?(uid_end)$/) { $uid_end = $argv[0]; shift @argv } 986 elsif (/^--?(group)$/) { $defaultgroup = $argv[0]; shift @argv } 987 elsif (/^--?(check_only)$/) { $check_only = 1 } 988 elsif (/^--?(message)$/) { $send_message = $argv[0]; shift @argv; 989 $sendmessage = 1; } 990 elsif (/^--?(unencrypted)$/) { $unencrypted = 1 } 991 elsif (/^--?(batch)$/) { 992 @batch = splice(@argv, 0, 4); $verbose = 0; 993 die "batch: too few arguments\n" if $#batch < 0; 994 } 995 # see &config_read 996 elsif (/^--?(config_create)$/) { &hints; &create_conf; exit(0); } 997 elsif (/^--?(noconfig)$/) { $config_read = 0; } 998 elsif (/^--?(e|encryption)$/) { 999 $encryptionmethod = $argv[0]; 1000 shift @argv; 1001 } 1002 else { &usage } 1003 } 1004 #&usage if $#argv < 0; 1005} 1006 1007sub basename { 1008 local($name) = @_; 1009 $name =~ s|/+$||; 1010 $name =~ s|.*/+||; 1011 return $name; 1012} 1013 1014sub dirname { 1015 local($name) = @_; 1016 $name = &stripdir($name); 1017 $name =~ s|/+[^/]+$||; 1018 $name = "/" unless $name; # dirname of / is / 1019 return $name; 1020} 1021 1022# return 1 if $file is a readable file or link 1023sub filetest { 1024 local($file, $verbose) = @_; 1025 1026 if (-e $file) { 1027 if (-f $file || -l $file) { 1028 return 1 if -r _; 1029 warn "$file unreadable\n" if $verbose; 1030 } else { 1031 warn "$file is not a plain file or link\n" if $verbose; 1032 } 1033 } 1034 return 0; 1035} 1036 1037# create or recreate configuration file prompting for values 1038sub create_conf { 1039 $create_conf = 1; 1040 1041 &shells_read; # Pull in /etc/shells info 1042 &shells_add; # maybe add some new shells 1043 $defaultshell = &shell_default; # enter default shell 1044 $home = &home_partition($home); # find HOME partition 1045 $dotdir = &dotdir_default; # check $dotdir 1046 $send_message = &message_default; # send message to new user 1047 $defaultpasswd = &password_default; # maybe use password 1048 $defaultencryption = &encryption_default; # Encryption method 1049 1050 if ($send_message ne 'no') { 1051 &message_create($send_message); 1052 } else { 1053 &message_create($send_message_bak); 1054 } 1055 &config_write(1); 1056} 1057 1058# log for new user in /var/log/adduser 1059sub adduser_log { 1060 local($string) = @_; 1061 local($e); 1062 1063 return 1 if $logfile eq "no"; 1064 1065 local($sec, $min, $hour, $mday, $mon, $year) = localtime; 1066 $year += 1900; 1067 $mon++; 1068 1069 foreach $e ('sec', 'min', 'hour', 'mday', 'mon') { 1070 # '7' -> '07' 1071 eval "\$$e = 0 . \$$e" if (eval "\$$e" < 10); 1072 } 1073 1074 &append_file($logfile, "$year/$mon/$mday $hour:$min:$sec $string"); 1075} 1076 1077# create HOME directory, copy dotfiles from $dotdir to $HOME 1078sub home_create { 1079 local($name, $group) = @_; 1080 local($homedir) = "$home/$name"; 1081 1082 if (-e "$homedir") { 1083 warn "HOME Directory ``$homedir'' already exists\a\n"; 1084 return 0; 1085 } 1086 1087 if ($dotdir eq 'no') { 1088 if (!mkdir("$homedir",0755)) { 1089 warn "mkdir $homedir: $!\n"; return 0; 1090 } 1091 system 'chown', "$name:$group", $homedir; 1092 return !$?; 1093 } 1094 1095 # copy files from $dotdir to $homedir 1096 # rename 'dot.foo' files to '.foo' 1097 print "Copy files from $dotdir to $homedir\n" if $verbose; 1098 system("cp", "-R", $dotdir, $homedir); 1099 system("chmod", "-R", "u+wrX,go-w", $homedir); 1100 system("chown", "-R", "$name:$group", $homedir); 1101 1102 # security 1103 opendir(D, $homedir); 1104 foreach $file (readdir(D)) { 1105 if ($file =~ /^dot\./ && -f "$homedir/$file") { 1106 $file =~ s/^dot\././; 1107 rename("$homedir/dot$file", "$homedir/$file"); 1108 } 1109 chmod(0600, "$homedir/$file") 1110 if ($file =~ /^\.(rhosts|Xauthority|kermrc|netrc)$/); 1111 chmod(0700, "$homedir/$file") 1112 if ($file =~ /^(Mail|prv|\.(iscreen|term))$/); 1113 } 1114 closedir D; 1115 return 1; 1116} 1117 1118# makes a directory hierarchy 1119sub mkdir_home { 1120 local($dir) = @_; 1121 $dir = &stripdir($dir); 1122 local($user_partition) = "/usr"; 1123 local($dirname) = &dirname($dir); 1124 1125 1126 -e $dirname || &mkdirhier($dirname); 1127 1128 if (((stat($dirname))[0]) == ((stat("/"))[0])){ 1129 # home partition is on root partition 1130 # create home partition on $user_partition and make 1131 # a symlink from $dir to $user_partition/`basename $dir` 1132 # For instance: /home -> /usr/home 1133 1134 local($basename) = &basename($dir); 1135 local($d) = "$user_partition/$basename"; 1136 1137 1138 if (-d $d) { 1139 warn "Oops, $d already exists\n" if $verbose; 1140 } else { 1141 print "Create $d\n" if $verbose; 1142 if (!mkdir("$d", 0755)) { 1143 warn "$d: $!\a\n"; return 0; 1144 } 1145 } 1146 1147 unlink($dir); # symlink to nonexist file 1148 print "Create symlink: $dir -> $d\n" if $verbose; 1149 if (!symlink("$d", $dir)) { 1150 warn "Symlink $d: $!\a\n"; return 0; 1151 } 1152 } else { 1153 print "Create $dir\n" if $verbose; 1154 if (!mkdir("$dir", 0755)) { 1155 warn "Directory ``$dir'': $!\a\n"; return 0; 1156 } 1157 } 1158 return 1; 1159} 1160 1161sub mkdirhier { 1162 local($dir) = @_; 1163 local($d,$p); 1164 1165 $dir = &stripdir($dir); 1166 1167 foreach $d (split('/', $dir)) { 1168 $dir = "$p/$d"; 1169 $dir =~ s|^//|/|; 1170 if (! -e "$dir") { 1171 print "Create $dir\n" if $verbose; 1172 if (!mkdir("$dir", 0755)) { 1173 warn "$dir: $!\n"; return 0; 1174 } 1175 } 1176 $p .= "/$d"; 1177 } 1178 return 1; 1179} 1180 1181# stript unused '/' 1182# F.i.: //usr///home// -> /usr/home 1183sub stripdir { 1184 local($dir) = @_; 1185 1186 $dir =~ s|/+|/|g; # delete double '/' 1187 $dir =~ s|/$||; # delete '/' at end 1188 return $dir if $dir ne ""; 1189 return '/'; 1190} 1191 1192# Read one of the elements from @list. $confirm is default. 1193# If !$allow accept only elements from @list. 1194sub confirm_list { 1195 local($message, $allow, $confirm, @list) = @_; 1196 local($read, $c, $print); 1197 1198 $print = "$message" if $message; 1199 $print .= " " unless $message =~ /\n$/ || $#list == 0; 1200 1201 $print .= join($", &uniq(@list)); #" 1202 $print .= " " unless $message =~ /\n$/ && $#list == 0; 1203 print "$print"; 1204 print "\n" if (length($print) + length($confirm)) > 60; 1205 print "[$confirm]: "; 1206 1207 chop($read = <STDIN>); 1208 $read =~ s/^\s*//; 1209 $read =~ s/\s*$//; 1210 return $confirm if $read eq ""; 1211 return "$read" if $allow; 1212 1213 foreach $c (@list) { 1214 return $read if $c eq $read; 1215 } 1216 warn "$read: is not allowed!\a\n"; 1217 return &confirm_list($message, $allow, $confirm, @list); 1218} 1219 1220# YES or NO question 1221# return 1 if &confirm("message", "yes") and answer is yes 1222# or if &confirm("message", "no") an answer is no 1223# otherwise 0 1224sub confirm_yn { 1225 local($message, $confirm) = @_; 1226 local($yes) = '^(yes|YES|y|Y)$'; 1227 local($no) = '^(no|NO|n|N)$'; 1228 local($read, $c); 1229 1230 if ($confirm && ($confirm =~ "$yes" || $confirm == 1)) { 1231 $confirm = "y"; 1232 } else { 1233 $confirm = "n"; 1234 } 1235 print "$message (y/n) [$confirm]: "; 1236 chop($read = <STDIN>); 1237 $read =~ s/^\s*//; 1238 $read =~ s/\s*$//; 1239 return 1 unless $read; 1240 1241 if (($confirm eq "y" && $read =~ "$yes") || 1242 ($confirm eq "n" && $read =~ "$no")) { 1243 return 1; 1244 } 1245 1246 if ($read !~ "$yes" && $read !~ "$no") { 1247 warn "Wrong value. Enter again!\a\n"; 1248 return &confirm_yn($message, $confirm); 1249 } 1250 return 0; 1251} 1252 1253# test if $dotdir exist 1254# return "no" if $dotdir not exist or dotfiles should not copied 1255sub dotdir_default { 1256 local($dir) = $dotdir; 1257 1258 return &dotdir_default_valid($dir) unless $verbose; 1259 while($verbose) { 1260 $dir = &confirm_list("Copy dotfiles from:", 1, 1261 $dir, ("no", $dotdir_bak, $dir)); 1262 last if $dir eq &dotdir_default_valid($dir); 1263 } 1264 warn "Do not copy dotfiles.\n" if $verbose && $dir eq "no"; 1265 1266 $changes++ if $dir ne $dotdir; 1267 return $dir; 1268} 1269 1270sub dotdir_default_valid { 1271 local($dir) = @_; 1272 1273 return $dir if (-e $dir && -r _ && (-d _ || -l $dir) && $dir =~ "^/"); 1274 return $dir if $dir eq "no"; 1275 warn "Dotdir ``$dir'' is not a directory\a\n"; 1276 return "no"; 1277} 1278 1279# ask for messages to new users 1280sub message_default { 1281 local($file) = $send_message; 1282 local(@d) = ($file, $send_message_bak, "no"); 1283 1284 while($verbose) { 1285 $file = &confirm_list("Send message from file:", 1, $file, @d); 1286 last if $file eq "no"; 1287 last if &filetest($file, 1); 1288 1289 # maybe create message file 1290 &message_create($file) if &confirm_yn("Create ``$file''?", "yes"); 1291 last if &filetest($file, 0); 1292 last if !&confirm_yn("File ``$file'' does not exist, try again?", 1293 "yes"); 1294 } 1295 1296 if ($file eq "no" || !&filetest($file, 0)) { 1297 warn "Do not send message\n" if $verbose; 1298 $file = "no"; 1299 } else { 1300 &message_read($file); 1301 } 1302 1303 $changes++ if $file ne $send_message && $verbose; 1304 return $file; 1305} 1306 1307# create message file 1308sub message_create { 1309 local($file) = @_; 1310 1311 rename($file, "$file.bak"); 1312 if (!open(M, "> $file")) { 1313 warn "Messagefile ``$file'': $!\n"; return 0; 1314 } 1315 print M <<EOF; 1316# 1317# Message file for adduser(8) 1318# comment: ``#'' 1319# default variables: \$name, \$fullname, \$password 1320# other variables: see /etc/adduser.conf after 1321# line ``$do_not_delete'' 1322# 1323 1324\$fullname, 1325 1326your account ``\$name'' was created. 1327Have fun! 1328 1329See also chpass(1), finger(1), passwd(1) 1330EOF 1331 close M; 1332 return 1; 1333} 1334 1335# read message file into buffer 1336sub message_read { 1337 local($file) = @_; 1338 @message_buffer = (); 1339 1340 if (!open(R, "$file")) { 1341 warn "File ``$file'':$!\n"; return 0; 1342 } 1343 while(<R>) { 1344 push(@message_buffer, $_) unless /^\s*#/; 1345 } 1346 close R; 1347} 1348 1349# write @list to $file with file-locking 1350sub append_file { 1351 local($file,@list) = @_; 1352 local($e); 1353 1354 open(F, ">> $file") || die "$file: $!\n"; 1355 print "Lock $file.\n" if $verbose > 1; 1356 while(!flock(F, LOCK_EX | LOCK_NB)) { 1357 warn "Cannot lock file: $file\a\n"; 1358 die "Sorry, gave up\n" 1359 unless &confirm_yn("Try again?", "yes"); 1360 } 1361 print F join("\n", @list) . "\n"; 1362 print "Unlock $file.\n" if $verbose > 1; 1363 flock(F, LOCK_UN); 1364 close F; 1365} 1366 1367# return free uid+gid 1368# uid == gid if possible 1369sub next_id { 1370 local($group) = @_; 1371 1372 $uid_start = 1000 if ($uid_start <= 0 || $uid_start >= $uid_end); 1373 # looking for next free uid 1374 while($uid{$uid_start}) { 1375 $uid_start++; 1376 $uid_start = 1000 if $uid_start >= $uid_end; 1377 print "$uid_start\n" if $verbose > 1; 1378 } 1379 1380 local($gid_start) = $uid_start; 1381 # group for user (username==groupname) already exist 1382 if ($groupname{$group}) { 1383 $gid_start = $groupname{$group}; 1384 } 1385 # gid is in use, looking for another gid. 1386 # Note: uid and gid are not equal 1387 elsif ($gid{$uid_start}) { 1388 while($gid{$gid_start} || $uid{$gid_start}) { 1389 $gid_start--; 1390 $gid_start = $uid_end if $gid_start < 100; 1391 } 1392 } 1393 return ($uid_start, $gid_start); 1394} 1395 1396# read config file - typically /etc/adduser.conf 1397sub config_read { 1398 local($opt) = join " ", @_; 1399 local($user_flag) = 0; 1400 1401 # don't read config file 1402 return 1 if $opt =~ /-(noconfig|config_create)/ || !$config_read; 1403 1404 if (!-f $config) { 1405 warn("Couldn't find $config: creating a new adduser configuration file\n"); 1406 &create_conf; 1407 } 1408 1409 if (!open(C, "$config")) { 1410 warn "$config: $!\n"; return 0; 1411 } 1412 1413 while(<C>) { 1414 # user defined variables 1415 /^$do_not_delete/ && $user_flag++; 1416 # found @array or $variable 1417 if (s/^(\w+\s*=\s*\()/\@$1/ || s/^(\w+\s*=)/\$$1/) { 1418 eval $_; 1419 #warn "$_"; 1420 } 1421 next if /^$/; 1422 # lines with '^##' are not saved 1423 push(@user_variable_list, $_) 1424 if $user_flag && !/^##/ && (s/^[\$\@]// || /^[#\s]/); 1425 } 1426 #warn "X @user_variable_list X\n"; 1427 close C; 1428} 1429 1430 1431# write config file 1432sub config_write { 1433 local($silent) = @_; 1434 1435 # nothing to do 1436 return 1 unless ($changes || ! -e $config || !$config_read || $silent); 1437 1438 if (!$silent) { 1439 if (-e $config) { 1440 return 1 if &confirm_yn("\nWrite your changes to $config?", "no"); 1441 } else { 1442 return 1 unless 1443 &confirm_yn("\nWrite your configuration to $config?", "yes"); 1444 } 1445 } 1446 1447 rename($config, "$config.bak"); 1448 open(C, "> $config") || die "$config: $!\n"; 1449 1450 # prepare some variables 1451 $send_message = "no" unless $send_message; 1452 $defaultpasswd = "no" unless $defaultpasswd; 1453 local($shpref) = "'" . join("', '", @shellpref) . "'"; 1454 local($shpath) = "'" . join("', '", @path) . "'"; 1455 local($user_var) = join('', @user_variable_list); 1456 1457 print C <<EOF; 1458# 1459# $rcsid 1460# $config - automatic generated by adduser(8) 1461# 1462# Note: adduser reads *and* writes this file. 1463# You may change values, but don't add new things before the 1464# line ``$do_not_delete'' 1465# 1466 1467# verbose = [0-2] 1468verbose = $verbose 1469 1470# Get new password for new users 1471# defaultpasswd = yes | no 1472defaultpasswd = $defaultpasswd 1473 1474# Default encryption method for user passwords 1475# Methods are all those listed in passwd.conf(5) 1476encryptionmethod = "$defaultencryption" 1477 1478# copy dotfiles from this dir ("/etc/skel" or "no") 1479dotdir = "$dotdir" 1480 1481# send this file to new user ("/etc/adduser.message" or "no") 1482send_message = "$send_message" 1483 1484# config file for adduser ("/etc/adduser.conf") 1485config = "$config" 1486 1487# logfile ("/var/log/adduser" or "no") 1488logfile = "$logfile" 1489 1490# default HOME directory ("/home") 1491home = "$home" 1492 1493# List of directories where shells located 1494# path = ('/bin', '/usr/bin', '/usr/local/bin') 1495path = ($shpath) 1496 1497# common shell list, first element has higher priority 1498# shellpref = ('bash', 'tcsh', 'ksh', 'csh', 'sh') 1499shellpref = ($shpref) 1500 1501# defaultshell if not empty ("bash") 1502defaultshell = "$defaultshell" 1503 1504# defaultgroup ('USER' for same as username or any other valid group) 1505defaultgroup = $defaultgroup 1506 1507# new users get this uid 1508uid_start = $uid_start 1509uid_end = $uid_end 1510 1511$do_not_delete 1512## your own variables, see /etc/adduser.message 1513EOF 1514 print C "$user_var\n" if ($user_var ne ''); 1515 print C "\n## end\n"; 1516 close C; 1517} 1518 1519# check for sane variables 1520sub variable_check { 1521 # Check uid_start & uid_end 1522 warn "WARNING: uid_start < 1000!\n" if($uid_start < 1000); 1523 die "ERROR: uid_start >= uid_end!\n" if($uid_start >= $uid_end); 1524 # unencrypted really only usable in batch mode 1525 warn "WARNING: unencrypted only effective in batch mode\n" 1526 if($#batch < 0 && $unencrypted); 1527} 1528 1529sub cleanup { 1530 local($sig) = @_; 1531 1532 print STDERR "Caught signal SIG$sig -- cleaning up.\n"; 1533 system("stty", "echo"); 1534 exit(0); 1535} 1536 1537END { 1538 if (-e $etc_ptmp && defined(fileno(PTMP))) { 1539 close PTMP; 1540 unlink($etc_ptmp) || warn "Error: unable to remove $etc_ptmp: $!\nPlease verify that $etc_ptmp no longer exists!\n"; 1541 } 1542} 1543