1#!/bin/sh 2# 3# Copyright (c) 2002-2004 Michael Telahun Makonnen. All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24# 25# Email: Mike Makonnen <mtm@FreeBSD.Org> 26# 27# $FreeBSD$ 28# 29 30# err msg 31# Display $msg on stderr, unless we're being quiet. 32# 33err() { 34 if [ -z "$quietflag" ]; then 35 echo 1>&2 ${THISCMD}: ERROR: $* 36 fi 37} 38 39# info msg 40# Display $msg on stdout, unless we're being quiet. 41# 42info() { 43 if [ -z "$quietflag" ]; then 44 echo ${THISCMD}: INFO: $* 45 fi 46} 47 48# get_nextuid 49# Output the value of $_uid if it is available for use. If it 50# is not, output the value of the next higher uid that is available. 51# If a uid is not specified, output the first available uid, as indicated 52# by pw(8). 53# 54get_nextuid () { 55 _uid=$1 56 _nextuid= 57 58 if [ -z "$_uid" ]; then 59 _nextuid="`${PWCMD} usernext | cut -f1 -d:`" 60 else 61 while : ; do 62 ${PWCMD} usershow $_uid > /dev/null 2>&1 63 if [ ! "$?" -eq 0 ]; then 64 _nextuid=$_uid 65 break 66 fi 67 _uid=$(($_uid + 1)) 68 done 69 fi 70 echo $_nextuid 71} 72 73# show_usage 74# Display usage information for this utility. 75# 76show_usage() { 77 echo "usage: ${THISCMD} [options]" 78 echo " options may include:" 79 echo " -C save to the configuration file only" 80 echo " -D do not attempt to create the home directory" 81 echo " -E disable this account after creation" 82 echo " -G additional groups to add accounts to" 83 echo " -L login class of the user" 84 echo " -N do not read configuration file" 85 echo " -S a nonexistent shell is not an error" 86 echo " -d home directory" 87 echo " -f file from which input will be received" 88 echo " -g default login group" 89 echo " -h display this usage message" 90 echo " -k path to skeleton home directory" 91 echo " -m user welcome message file" 92 echo " -q absolute minimal user feedback" 93 echo " -s shell" 94 echo " -u uid to start at" 95 echo " -w password type: no, none, yes or random" 96} 97 98# valid_shells 99# Outputs a list of valid shells from /etc/shells. Only the 100# basename of the shell is output. 101# 102valid_shells() { 103 _prefix= 104 cat ${ETCSHELLS} | 105 while read _path _junk ; do 106 case $_path in 107 \#*|'') 108 ;; 109 *) 110 echo -n "${_prefix}`basename $_path`" 111 _prefix=' ' 112 ;; 113 esac 114 done 115 116 # /usr/sbin/nologin is a special case 117 [ -x "${NOLOGIN_PATH}" ] && echo -n " ${NOLOGIN}" 118} 119 120# fullpath_from_shell shell 121# Given $shell, which is either the full path to a shell or 122# the basename component of a valid shell, get the 123# full path to the shell from the /etc/shells file. 124# 125fullpath_from_shell() { 126 _shell=$1 127 [ -z "$_shell" ] && return 1 128 129 # /usr/sbin/nologin is a special case; it needs to be handled 130 # before the cat | while loop, since a 'return' from within 131 # a subshell will not terminate the function's execution, and 132 # the path to the nologin shell might be printed out twice. 133 # 134 if [ "$_shell" = "${NOLOGIN}" -o \ 135 "$_shell" = "${NOLOGIN_PATH}" ]; then 136 echo ${NOLOGIN_PATH} 137 return 0; 138 fi 139 140 cat ${ETCSHELLS} | 141 while read _path _junk ; do 142 case "$_path" in 143 \#*|'') 144 ;; 145 *) 146 if [ "$_path" = "$_shell" -o \ 147 "`basename $_path`" = "$_shell" ]; then 148 echo $_path 149 return 0 150 fi 151 ;; 152 esac 153 done 154 155 return 1 156} 157 158# shell_exists shell 159# If the given shell is listed in ${ETCSHELLS} or it is 160# the nologin shell this function will return 0. 161# Otherwise, it will return 1. If shell is valid but 162# the path is invalid or it is not executable it 163# will emit an informational message saying so. 164# 165shell_exists() 166{ 167 _sh="$1" 168 _shellchk="${GREPCMD} '^$_sh$' ${ETCSHELLS} > /dev/null 2>&1" 169 170 if ! eval $_shellchk; then 171 # The nologin shell is not listed in /etc/shells. 172 if [ "$_sh" != "${NOLOGIN_PATH}" ]; then 173 err "Invalid shell ($_sh) for user $username." 174 return 1 175 fi 176 fi 177 ! [ -x "$_sh" ] && 178 info "The shell ($_sh) does not exist or is not executable." 179 180 return 0 181} 182 183# save_config 184# Save some variables to a configuration file. 185# Note: not all script variables are saved, only those that 186# it makes sense to save. 187# 188save_config() { 189 echo "# Configuration file for adduser(8)." > ${ADDUSERCONF} 190 echo "# NOTE: only *some* variables are saved." >> ${ADDUSERCONF} 191 echo "# Last Modified on `${DATECMD}`." >> ${ADDUSERCONF} 192 echo '' >> ${ADDUSERCONF} 193 echo "defaultLgroup=$ulogingroup" >> ${ADDUSERCONF} 194 echo "defaultclass=$uclass" >> ${ADDUSERCONF} 195 echo "defaultgroups=$ugroups" >> ${ADDUSERCONF} 196 echo "passwdtype=$passwdtype" >> ${ADDUSERCONF} 197 echo "homeprefix=$homeprefix" >> ${ADDUSERCONF} 198 echo "defaultshell=$ushell" >> ${ADDUSERCONF} 199 echo "udotdir=$udotdir" >> ${ADDUSERCONF} 200 echo "msgfile=$msgfile" >> ${ADDUSERCONF} 201 echo "disableflag=$disableflag" >> ${ADDUSERCONF} 202} 203 204# add_user 205# Add a user to the user database. If the user chose to send a welcome 206# message or lock the account, do so. 207# 208add_user() { 209 210 # Is this a configuration run? If so, don't modify user database. 211 # 212 if [ -n "$configflag" ]; then 213 save_config 214 return 215 fi 216 217 _uid= 218 _name= 219 _comment= 220 _gecos= 221 _home= 222 _group= 223 _grouplist= 224 _shell= 225 _class= 226 _dotdir= 227 _expire= 228 _pwexpire= 229 _passwd= 230 _upasswd= 231 _passwdmethod= 232 233 _name="-n '$username'" 234 [ -n "$uuid" ] && _uid='-u "$uuid"' 235 [ -n "$ulogingroup" ] && _group='-g "$ulogingroup"' 236 [ -n "$ugroups" ] && _grouplist='-G "$ugroups"' 237 [ -n "$ushell" ] && _shell='-s "$ushell"' 238 [ -n "$uclass" ] && _class='-L "$uclass"' 239 [ -n "$ugecos" ] && _comment='-c "$ugecos"' 240 [ -n "$udotdir" ] && _dotdir='-k "$udotdir"' 241 [ -n "$uexpire" ] && _expire='-e "$uexpire"' 242 [ -n "$upwexpire" ] && _pwexpire='-p "$upwexpire"' 243 if [ -z "$Dflag" -a -n "$uhome" ]; then 244 # The /nonexistent home directory is special. It 245 # means the user has no home directory. 246 if [ "$uhome" = "$NOHOME" ]; then 247 _home='-d "$uhome"' 248 else 249 _home='-m -d "$uhome"' 250 fi 251 elif [ -n "$Dflag" -a -n "$uhome" ]; then 252 _home='-d "$uhome"' 253 fi 254 case $passwdtype in 255 no) 256 _passwdmethod="-w no" 257 _passwd="-h -" 258 ;; 259 yes) 260 # Note on processing the password: The outer double quotes 261 # make literal everything except ` and \ and $. 262 # The outer single quotes make literal ` and $. 263 # We can ensure the \ isn't treated specially by specifying 264 # the -r switch to the read command used to obtain the input. 265 # 266 _passwdmethod="-w yes" 267 _passwd="-h 0" 268 _upasswd='echo "$upass" |' 269 ;; 270 none) 271 _passwdmethod="-w none" 272 ;; 273 random) 274 _passwdmethod="-w random" 275 ;; 276 esac 277 278 _pwcmd="$_upasswd ${PWCMD} useradd $_uid $_name $_group $_grouplist $_comment" 279 _pwcmd="$_pwcmd $_shell $_class $_home $_dotdir $_passwdmethod $_passwd" 280 _pwcmd="$_pwcmd $_expire $_pwexpire" 281 282 if ! _output=`eval $_pwcmd` ; then 283 err "There was an error adding user ($username)." 284 return 1 285 else 286 info "Successfully added ($username) to the user database." 287 if [ "random" = "$passwdtype" ]; then 288 randompass="$_output" 289 info "Password for ($username) is: $randompass" 290 fi 291 fi 292 293 if [ -n "$disableflag" ]; then 294 if ${PWCMD} lock $username ; then 295 info "Account ($username) is locked." 296 else 297 info "Account ($username) could NOT be locked." 298 fi 299 fi 300 301 _line= 302 _owner= 303 _perms= 304 if [ -n "$msgflag" ]; then 305 [ -r "$msgfile" ] && { 306 # We're evaluating the contents of an external file. 307 # Let's not open ourselves up for attack. _perms will 308 # be empty if it's writeable only by the owner. _owner 309 # will *NOT* be empty if the file is owned by root. 310 # 311 _dir="`dirname $msgfile`" 312 _file="`basename $msgfile`" 313 _perms=`/usr/bin/find $_dir -name $_file -perm +07022 -prune` 314 _owner=`/usr/bin/find $_dir -name $_file -user 0 -prune` 315 if [ -z "$_owner" -o -n "$_perms" ]; then 316 err "The message file ($msgfile) may be writeable only by root." 317 return 1 318 fi 319 cat "$msgfile" | 320 while read _line ; do 321 eval echo "$_line" 322 done | ${MAILCMD} -s"Welcome" ${username} 323 info "Sent welcome message to ($username)." 324 } 325 fi 326} 327 328# get_user 329# Reads username of the account from standard input or from a global 330# variable containing an account line from a file. The username is 331# required. If this is an interactive session it will prompt in 332# a loop until a username is entered. If it is batch processing from 333# a file it will output an error message and return to the caller. 334# 335get_user() { 336 _input= 337 338 # No need to take down user names if this is a configuration saving run. 339 [ -n "$configflag" ] && return 340 341 while : ; do 342 if [ -z "$fflag" ]; then 343 echo -n "Username: " 344 read _input 345 else 346 _input="`echo "$fileline" | cut -f1 -d:`" 347 fi 348 349 # There *must* be a username. If this is an interactive 350 # session give the user an opportunity to retry. 351 # 352 if [ -z "$_input" ]; then 353 err "You must enter a username!" 354 [ -z "$fflag" ] && continue 355 fi 356 break 357 done 358 username="$_input" 359} 360 361# get_gecos 362# Reads extra information about the user. Can be used both in interactive 363# and batch (from file) mode. 364# 365get_gecos() { 366 _input= 367 368 # No need to take down additional user information for a configuration run. 369 [ -n "$configflag" ] && return 370 371 if [ -z "$fflag" ]; then 372 echo -n "Full name: " 373 read _input 374 else 375 _input="`echo "$fileline" | cut -f7 -d:`" 376 fi 377 ugecos="$_input" 378} 379 380# get_shell 381# Get the account's shell. Works in interactive and batch mode. It 382# accepts either the base name of the shell or the full path. 383# If an invalid shell is entered it will simply use the default shell. 384# 385get_shell() { 386 _input= 387 _fullpath= 388 ushell="$defaultshell" 389 390 # Make sure the current value of the shell is a valid one 391 if [ -z "$Sflag" ]; then 392 if ! shell_exists $ushell ; then 393 info "Using default shell ${defaultshell}." 394 ushell="$defaultshell" 395 fi 396 fi 397 398 if [ -z "$fflag" ]; then 399 echo -n "Shell ($shells) [`basename $ushell`]: " 400 read _input 401 else 402 _input="`echo "$fileline" | cut -f9 -d:`" 403 fi 404 if [ -n "$_input" ]; then 405 if [ -n "$Sflag" ]; then 406 ushell="$_input" 407 else 408 _fullpath=`fullpath_from_shell $_input` 409 if [ -n "$_fullpath" ]; then 410 ushell="$_fullpath" 411 else 412 err "Invalid shell ($_input) for user $username." 413 info "Using default shell ${defaultshell}." 414 ushell="$defaultshell" 415 fi 416 fi 417 fi 418} 419 420# get_homedir 421# Reads the account's home directory. Used both with interactive input 422# and batch input. 423# 424get_homedir() { 425 _input= 426 if [ -z "$fflag" ]; then 427 echo -n "Home directory [${homeprefix}/${username}]: " 428 read _input 429 else 430 _input="`echo "$fileline" | cut -f8 -d:`" 431 fi 432 433 if [ -n "$_input" ]; then 434 uhome="$_input" 435 # if this is a configuration run, then user input is the home 436 # directory prefix. Otherwise it is understood to 437 # be $prefix/$user 438 # 439 [ -z "$configflag" ] && homeprefix="`dirname $uhome`" || homeprefix="$uhome" 440 else 441 uhome="${homeprefix}/${username}" 442 fi 443} 444 445# get_uid 446# Reads a numeric userid in an interactive or batch session. Automatically 447# allocates one if it is not specified. 448# 449get_uid() { 450 uuid=${uidstart} 451 _input= 452 _prompt= 453 454 # No need to take down uids for a configuration saving run. 455 [ -n "$configflag" ] && return 456 457 if [ -n "$uuid" ]; then 458 _prompt="Uid [$uuid]: " 459 else 460 _prompt="Uid (Leave empty for default): " 461 fi 462 if [ -z "$fflag" ]; then 463 echo -n "$_prompt" 464 read _input 465 else 466 _input="`echo "$fileline" | cut -f2 -d:`" 467 fi 468 469 [ -n "$_input" ] && uuid=$_input 470 uuid=`get_nextuid $uuid` 471 uidstart=$uuid 472} 473 474# get_class 475# Reads login class of account. Can be used in interactive or batch mode. 476# 477get_class() { 478 uclass="$defaultclass" 479 _input= 480 _class=${uclass:-"default"} 481 482 if [ -z "$fflag" ]; then 483 echo -n "Login class [$_class]: " 484 read _input 485 else 486 _input="`echo "$fileline" | cut -f4 -d:`" 487 fi 488 489 [ -n "$_input" ] && uclass="$_input" 490} 491 492# get_logingroup 493# Reads user's login group. Can be used in both interactive and batch 494# modes. The specified value can be a group name or its numeric id. 495# This routine leaves the field blank if nothing is provided and 496# a default login group has not been set. The pw(8) command 497# will then provide a login group with the same name as the username. 498# 499get_logingroup() { 500 ulogingroup="$defaultLgroup" 501 _input= 502 503 if [ -z "$fflag" ]; then 504 echo -n "Login group [${ulogingroup:-$username}]: " 505 read _input 506 else 507 _input="`echo "$fileline" | cut -f3 -d:`" 508 fi 509 510 # Pw(8) will use the username as login group if it's left empty 511 [ -n "$_input" ] && ulogingroup="$_input" 512} 513 514# get_groups 515# Read additional groups for the user. It can be used in both interactive 516# and batch modes. 517# 518get_groups() { 519 ugroups="$defaultgroups" 520 _input= 521 _group=${ulogingroup:-"${username}"} 522 523 if [ -z "$configflag" ]; then 524 [ -z "$fflag" ] && echo -n "Login group is $_group. Invite $username" 525 [ -z "$fflag" ] && echo -n " into other groups? [$ugroups]: " 526 else 527 [ -z "$fflag" ] && echo -n "Enter additional groups [$ugroups]: " 528 fi 529 read _input 530 531 [ -n "$_input" ] && ugroups="$_input" 532} 533 534# get_expire_dates 535# Read expiry information for the account and also for the password. This 536# routine is used only from batch processing mode. 537# 538get_expire_dates() { 539 upwexpire="`echo "$fileline" | cut -f5 -d:`" 540 uexpire="`echo "$fileline" | cut -f6 -d:`" 541} 542 543# get_password 544# Read the password in batch processing mode. The password field matters 545# only when the password type is "yes" or "random". If the field is empty and the 546# password type is "yes", then it assumes the account has an empty passsword 547# and changes the password type accordingly. If the password type is "random" 548# and the password field is NOT empty, then it assumes the account will NOT 549# have a random password and set passwdtype to "yes." 550# 551get_password() { 552 # We may temporarily change a password type. Make sure it's changed 553 # back to whatever it was before we process the next account. 554 # 555 [ -n "$savedpwtype" ] && { 556 passwdtype=$savedpwtype 557 savedpwtype= 558 } 559 560 # There may be a ':' in the password 561 upass=${fileline#*:*:*:*:*:*:*:*:*:} 562 563 if [ -z "$upass" ]; then 564 case $passwdtype in 565 yes) 566 # if it's empty, assume an empty password 567 passwdtype=none 568 savedpwtype=yes 569 ;; 570 esac 571 else 572 case $passwdtype in 573 random) 574 passwdtype=yes 575 savedpwtype=random 576 ;; 577 esac 578 fi 579} 580 581# input_from_file 582# Reads a line of account information from standard input and 583# adds it to the user database. 584# 585input_from_file() { 586 _field= 587 588 while read -r fileline ; do 589 case "$fileline" in 590 \#*|'') 591 return 0 592 ;; 593 esac 594 595 get_user || continue 596 get_gecos 597 get_uid 598 get_logingroup 599 get_class 600 get_shell 601 get_homedir 602 get_password 603 get_expire_dates 604 605 add_user 606 done 607} 608 609# input_interactive 610# Prompts for user information interactively, and commits to 611# the user database. 612# 613input_interactive() { 614 615 _disable= 616 _pass= 617 _passconfirm= 618 _random="no" 619 _emptypass="no" 620 _usepass="yes" 621 _logingroup_ok="no" 622 _groups_ok="no" 623 case $passwdtype in 624 none) 625 _emptypass="yes" 626 _usepass="yes" 627 ;; 628 no) 629 _usepass="no" 630 ;; 631 random) 632 _random="yes" 633 ;; 634 esac 635 636 get_user 637 get_gecos 638 get_uid 639 640 # The case where group = user is handled elsewhere, so 641 # validate any other groups the user is invited to. 642 until [ "$_logingroup_ok" = yes ]; do 643 get_logingroup 644 _logingroup_ok=yes 645 if [ -n "$ulogingroup" -a "$username" != "$ulogingroup" ]; then 646 if ! ${PWCMD} show group $ulogingroup > /dev/null 2>&1; then 647 echo "Group $ulogingroup does not exist!" 648 _logingroup_ok=no 649 fi 650 fi 651 done 652 until [ "$_groups_ok" = yes ]; do 653 get_groups 654 _groups_ok=yes 655 for i in $ugroups; do 656 if [ "$username" != "$i" ]; then 657 if ! ${PWCMD} show group $i > /dev/null 2>&1; then 658 echo "Group $i does not exist!" 659 _groups_ok=no 660 fi 661 fi 662 done 663 done 664 665 get_class 666 get_shell 667 get_homedir 668 669 while : ; do 670 echo -n "Use password-based authentication? [$_usepass]: " 671 read _input 672 [ -z "$_input" ] && _input=$_usepass 673 case $_input in 674 [Nn][Oo]|[Nn]) 675 passwdtype="no" 676 ;; 677 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 678 while : ; do 679 echo -n "Use an empty password? (yes/no) [$_emptypass]: " 680 read _input 681 [ -n "$_input" ] && _emptypass=$_input 682 case $_emptypass in 683 [Nn][Oo]|[Nn]) 684 echo -n "Use a random password? (yes/no) [$_random]: " 685 read _input 686 [ -n "$_input" ] && _random="$_input" 687 case $_random in 688 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 689 passwdtype="random" 690 break 691 ;; 692 esac 693 passwdtype="yes" 694 [ -n "$configflag" ] && break 695 trap 'stty echo; exit' 0 1 2 3 15 696 stty -echo 697 echo -n "Enter password: " 698 read -r upass 699 echo'' 700 echo -n "Enter password again: " 701 read -r _passconfirm 702 echo '' 703 stty echo 704 # if user entered a blank password 705 # explicitly ask again. 706 [ -z "$upass" -a -z "$_passconfirm" ] \ 707 && continue 708 ;; 709 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 710 passwdtype="none" 711 break; 712 ;; 713 *) 714 # invalid answer; repeat the loop 715 continue 716 ;; 717 esac 718 if [ "$upass" != "$_passconfirm" ]; then 719 echo "Passwords did not match!" 720 continue 721 fi 722 break 723 done 724 ;; 725 *) 726 # invalid answer; repeat loop 727 continue 728 ;; 729 esac 730 break; 731 done 732 _disable=${disableflag:-"no"} 733 while : ; do 734 echo -n "Lock out the account after creation? [$_disable]: " 735 read _input 736 [ -z "$_input" ] && _input=$_disable 737 case $_input in 738 [Nn][Oo]|[Nn]) 739 disableflag= 740 ;; 741 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 742 disableflag=yes 743 ;; 744 *) 745 # invalid answer; repeat loop 746 continue 747 ;; 748 esac 749 break 750 done 751 752 # Display the information we have so far and prompt to 753 # commit it. 754 # 755 _disable=${disableflag:-"no"} 756 [ -z "$configflag" ] && printf "%-10s : %s\n" Username $username 757 case $passwdtype in 758 yes) 759 _pass='*****' 760 ;; 761 no) 762 _pass='<disabled>' 763 ;; 764 none) 765 _pass='<blank>' 766 ;; 767 random) 768 _pass='<random>' 769 ;; 770 esac 771 [ -z "$configflag" ] && printf "%-10s : %s\n" "Password" "$_pass" 772 [ -n "$configflag" ] && printf "%-10s : %s\n" "Pass Type" "$passwdtype" 773 [ -z "$configflag" ] && printf "%-10s : %s\n" "Full Name" "$ugecos" 774 [ -z "$configflag" ] && printf "%-10s : %s\n" "Uid" "$uuid" 775 printf "%-10s : %s\n" "Class" "$uclass" 776 printf "%-10s : %s %s\n" "Groups" "${ulogingroup:-$username}" "$ugroups" 777 printf "%-10s : %s\n" "Home" "$uhome" 778 printf "%-10s : %s\n" "Shell" "$ushell" 779 printf "%-10s : %s\n" "Locked" "$_disable" 780 while : ; do 781 echo -n "OK? (yes/no): " 782 read _input 783 case $_input in 784 [Nn][Oo]|[Nn]) 785 return 1 786 ;; 787 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 788 add_user 789 ;; 790 *) 791 continue 792 ;; 793 esac 794 break 795 done 796 return 0 797} 798 799#### END SUBROUTINE DEFENITION #### 800 801THISCMD=`/usr/bin/basename $0` 802DEFAULTSHELL=/bin/sh 803ADDUSERCONF="${ADDUSERCONF:-/etc/adduser.conf}" 804PWCMD="${PWCMD:-/usr/sbin/pw}" 805MAILCMD="${MAILCMD:-mail}" 806ETCSHELLS="${ETCSHELLS:-/etc/shells}" 807NOHOME="/nonexistent" 808NOLOGIN="nologin" 809NOLOGIN_PATH="/usr/sbin/nologin" 810GREPCMD="/usr/bin/grep" 811DATECMD="/bin/date" 812 813# Set default values 814# 815username= 816uuid= 817uidstart= 818ugecos= 819ulogingroup= 820uclass= 821uhome= 822upass= 823ushell= 824udotdir=/usr/share/skel 825ugroups= 826uexpire= 827upwexpire= 828shells="`valid_shells`" 829passwdtype="yes" 830msgfile=/etc/adduser.msg 831msgflag= 832quietflag= 833configflag= 834fflag= 835infile= 836disableflag= 837Dflag= 838Sflag= 839readconfig="yes" 840homeprefix="/home" 841randompass= 842fileline= 843savedpwtype= 844defaultclass= 845defaultLgroup= 846defaultgroups= 847defaultshell="${DEFAULTSHELL}" 848 849# Make sure the user running this program is root. This isn't a security 850# measure as much as it is a usefull method of reminding the user to 851# 'su -' before he/she wastes time entering data that won't be saved. 852# 853procowner=${procowner:-`/usr/bin/id -u`} 854if [ "$procowner" != "0" ]; then 855 err 'you must be the super-user (uid 0) to use this utility.' 856 exit 1 857fi 858 859# Overide from our conf file 860# Quickly go through the commandline line to see if we should read 861# from our configuration file. The actual parsing of the commandline 862# arguments happens after we read in our configuration file (commandline 863# should override configuration file). 864# 865for _i in $* ; do 866 if [ "$_i" = "-N" ]; then 867 readconfig= 868 break; 869 fi 870done 871if [ -n "$readconfig" ]; then 872 # On a long-lived system, the first time this script is run it 873 # will barf upon reading the configuration file for its perl predecessor. 874 if ( . ${ADDUSERCONF} > /dev/null 2>&1 ); then 875 [ -r ${ADDUSERCONF} ] && . ${ADDUSERCONF} > /dev/null 2>&1 876 fi 877fi 878 879# Proccess command-line options 880# 881for _switch ; do 882 case $_switch in 883 -L) 884 defaultclass="$2" 885 shift; shift 886 ;; 887 -C) 888 configflag=yes 889 shift 890 ;; 891 -D) 892 Dflag=yes 893 shift 894 ;; 895 -E) 896 disableflag=yes 897 shift 898 ;; 899 -k) 900 udotdir="$2" 901 shift; shift 902 ;; 903 -f) 904 [ "$2" != "-" ] && infile="$2" 905 fflag=yes 906 shift; shift 907 ;; 908 -g) 909 defaultLgroup="$2" 910 shift; shift 911 ;; 912 -G) 913 defaultgroups="$2" 914 shift; shift 915 ;; 916 -h) 917 show_usage 918 exit 0 919 ;; 920 -d) 921 homeprefix="$2" 922 shift; shift 923 ;; 924 -m) 925 case "$2" in 926 [Nn][Oo]) 927 msgflag= 928 ;; 929 *) 930 msgflag=yes 931 msgfile="$2" 932 ;; 933 esac 934 shift; shift 935 ;; 936 -N) 937 readconfig= 938 shift 939 ;; 940 -w) 941 case "$2" in 942 no|none|random|yes) 943 passwdtype=$2 944 ;; 945 *) 946 show_usage 947 exit 1 948 ;; 949 esac 950 shift; shift 951 ;; 952 -q) 953 quietflag=yes 954 shift 955 ;; 956 -s) 957 defaultshell="`fullpath_from_shell $2`" 958 shift; shift 959 ;; 960 -S) 961 Sflag=yes 962 shift 963 ;; 964 -u) 965 uidstart=$2 966 shift; shift 967 ;; 968 esac 969done 970 971# If the -f switch was used, get input from a file. Otherwise, 972# this is an interactive session. 973# 974if [ -n "$fflag" ]; then 975 if [ -z "$infile" ]; then 976 input_from_file 977 elif [ -n "$infile" ]; then 978 if [ -r "$infile" ]; then 979 input_from_file < $infile 980 else 981 err "File ($infile) is unreadable or does not exist." 982 fi 983 fi 984else 985 input_interactive 986 while : ; do 987 if [ -z "$configflag" ]; then 988 echo -n "Add another user? (yes/no): " 989 else 990 echo -n "Re-edit the default configuration? (yes/no): " 991 fi 992 read _input 993 case $_input in 994 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 995 uidstart=`get_nextuid $uidstart` 996 input_interactive 997 continue 998 ;; 999 [Nn][Oo]|[Nn]) 1000 echo "Goodbye!" 1001 ;; 1002 *) 1003 continue 1004 ;; 1005 esac 1006 break 1007 done 1008fi 1009