adduser.sh revision 145618
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: head/usr.sbin/adduser/adduser.sh 145618 2005-04-28 12:44:02Z robert $ 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 ;; 592 esac 593 594 get_user || continue 595 get_gecos 596 get_uid 597 get_logingroup 598 get_class 599 get_shell 600 get_homedir 601 get_password 602 get_expire_dates 603 604 add_user 605 done 606} 607 608# input_interactive 609# Prompts for user information interactively, and commits to 610# the user database. 611# 612input_interactive() { 613 614 _disable= 615 _pass= 616 _passconfirm= 617 _random="no" 618 _emptypass="no" 619 _usepass="yes" 620 _logingroup_ok="no" 621 _groups_ok="no" 622 case $passwdtype in 623 none) 624 _emptypass="yes" 625 _usepass="yes" 626 ;; 627 no) 628 _usepass="no" 629 ;; 630 random) 631 _random="yes" 632 ;; 633 esac 634 635 get_user 636 get_gecos 637 get_uid 638 639 # The case where group = user is handled elsewhere, so 640 # validate any other groups the user is invited to. 641 until [ "$_logingroup_ok" = yes ]; do 642 get_logingroup 643 _logingroup_ok=yes 644 if [ -n "$ulogingroup" -a "$username" != "$ulogingroup" ]; then 645 if ! ${PWCMD} show group $ulogingroup > /dev/null 2>&1; then 646 echo "Group $ulogingroup does not exist!" 647 _logingroup_ok=no 648 fi 649 fi 650 done 651 until [ "$_groups_ok" = yes ]; do 652 get_groups 653 _groups_ok=yes 654 for i in $ugroups; do 655 if [ "$username" != "$i" ]; then 656 if ! ${PWCMD} show group $i > /dev/null 2>&1; then 657 echo "Group $i does not exist!" 658 _groups_ok=no 659 fi 660 fi 661 done 662 done 663 664 get_class 665 get_shell 666 get_homedir 667 668 while : ; do 669 echo -n "Use password-based authentication? [$_usepass]: " 670 read _input 671 [ -z "$_input" ] && _input=$_usepass 672 case $_input in 673 [Nn][Oo]|[Nn]) 674 passwdtype="no" 675 ;; 676 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 677 while : ; do 678 echo -n "Use an empty password? (yes/no) [$_emptypass]: " 679 read _input 680 [ -n "$_input" ] && _emptypass=$_input 681 case $_emptypass in 682 [Nn][Oo]|[Nn]) 683 echo -n "Use a random password? (yes/no) [$_random]: " 684 read _input 685 [ -n "$_input" ] && _random="$_input" 686 case $_random in 687 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 688 passwdtype="random" 689 break 690 ;; 691 esac 692 passwdtype="yes" 693 [ -n "$configflag" ] && break 694 trap 'stty echo; exit' 0 1 2 3 15 695 stty -echo 696 echo -n "Enter password: " 697 read -r upass 698 echo'' 699 echo -n "Enter password again: " 700 read -r _passconfirm 701 echo '' 702 stty echo 703 # if user entered a blank password 704 # explicitly ask again. 705 [ -z "$upass" -a -z "$_passconfirm" ] \ 706 && continue 707 ;; 708 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 709 passwdtype="none" 710 break; 711 ;; 712 *) 713 # invalid answer; repeat the loop 714 continue 715 ;; 716 esac 717 if [ "$upass" != "$_passconfirm" ]; then 718 echo "Passwords did not match!" 719 continue 720 fi 721 break 722 done 723 ;; 724 *) 725 # invalid answer; repeat loop 726 continue 727 ;; 728 esac 729 break; 730 done 731 _disable=${disableflag:-"no"} 732 while : ; do 733 echo -n "Lock out the account after creation? [$_disable]: " 734 read _input 735 [ -z "$_input" ] && _input=$_disable 736 case $_input in 737 [Nn][Oo]|[Nn]) 738 disableflag= 739 ;; 740 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 741 disableflag=yes 742 ;; 743 *) 744 # invalid answer; repeat loop 745 continue 746 ;; 747 esac 748 break 749 done 750 751 # Display the information we have so far and prompt to 752 # commit it. 753 # 754 _disable=${disableflag:-"no"} 755 [ -z "$configflag" ] && printf "%-10s : %s\n" Username $username 756 case $passwdtype in 757 yes) 758 _pass='*****' 759 ;; 760 no) 761 _pass='<disabled>' 762 ;; 763 none) 764 _pass='<blank>' 765 ;; 766 random) 767 _pass='<random>' 768 ;; 769 esac 770 [ -z "$configflag" ] && printf "%-10s : %s\n" "Password" "$_pass" 771 [ -n "$configflag" ] && printf "%-10s : %s\n" "Pass Type" "$passwdtype" 772 [ -z "$configflag" ] && printf "%-10s : %s\n" "Full Name" "$ugecos" 773 [ -z "$configflag" ] && printf "%-10s : %s\n" "Uid" "$uuid" 774 printf "%-10s : %s\n" "Class" "$uclass" 775 printf "%-10s : %s %s\n" "Groups" "${ulogingroup:-$username}" "$ugroups" 776 printf "%-10s : %s\n" "Home" "$uhome" 777 printf "%-10s : %s\n" "Shell" "$ushell" 778 printf "%-10s : %s\n" "Locked" "$_disable" 779 while : ; do 780 echo -n "OK? (yes/no): " 781 read _input 782 case $_input in 783 [Nn][Oo]|[Nn]) 784 return 1 785 ;; 786 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 787 add_user 788 ;; 789 *) 790 continue 791 ;; 792 esac 793 break 794 done 795 return 0 796} 797 798#### END SUBROUTINE DEFINITION #### 799 800THISCMD=`/usr/bin/basename $0` 801DEFAULTSHELL=/bin/sh 802ADDUSERCONF="${ADDUSERCONF:-/etc/adduser.conf}" 803PWCMD="${PWCMD:-/usr/sbin/pw}" 804MAILCMD="${MAILCMD:-mail}" 805ETCSHELLS="${ETCSHELLS:-/etc/shells}" 806NOHOME="/nonexistent" 807NOLOGIN="nologin" 808NOLOGIN_PATH="/usr/sbin/nologin" 809GREPCMD="/usr/bin/grep" 810DATECMD="/bin/date" 811 812# Set default values 813# 814username= 815uuid= 816uidstart= 817ugecos= 818ulogingroup= 819uclass= 820uhome= 821upass= 822ushell= 823udotdir=/usr/share/skel 824ugroups= 825uexpire= 826upwexpire= 827shells="`valid_shells`" 828passwdtype="yes" 829msgfile=/etc/adduser.msg 830msgflag= 831quietflag= 832configflag= 833fflag= 834infile= 835disableflag= 836Dflag= 837Sflag= 838readconfig="yes" 839homeprefix="/home" 840randompass= 841fileline= 842savedpwtype= 843defaultclass= 844defaultLgroup= 845defaultgroups= 846defaultshell="${DEFAULTSHELL}" 847 848# Make sure the user running this program is root. This isn't a security 849# measure as much as it is a usefull method of reminding the user to 850# 'su -' before he/she wastes time entering data that won't be saved. 851# 852procowner=${procowner:-`/usr/bin/id -u`} 853if [ "$procowner" != "0" ]; then 854 err 'you must be the super-user (uid 0) to use this utility.' 855 exit 1 856fi 857 858# Overide from our conf file 859# Quickly go through the commandline line to see if we should read 860# from our configuration file. The actual parsing of the commandline 861# arguments happens after we read in our configuration file (commandline 862# should override configuration file). 863# 864for _i in $* ; do 865 if [ "$_i" = "-N" ]; then 866 readconfig= 867 break; 868 fi 869done 870if [ -n "$readconfig" ]; then 871 # On a long-lived system, the first time this script is run it 872 # will barf upon reading the configuration file for its perl predecessor. 873 if ( . ${ADDUSERCONF} > /dev/null 2>&1 ); then 874 [ -r ${ADDUSERCONF} ] && . ${ADDUSERCONF} > /dev/null 2>&1 875 fi 876fi 877 878# Proccess command-line options 879# 880for _switch ; do 881 case $_switch in 882 -L) 883 defaultclass="$2" 884 shift; shift 885 ;; 886 -C) 887 configflag=yes 888 shift 889 ;; 890 -D) 891 Dflag=yes 892 shift 893 ;; 894 -E) 895 disableflag=yes 896 shift 897 ;; 898 -k) 899 udotdir="$2" 900 shift; shift 901 ;; 902 -f) 903 [ "$2" != "-" ] && infile="$2" 904 fflag=yes 905 shift; shift 906 ;; 907 -g) 908 defaultLgroup="$2" 909 shift; shift 910 ;; 911 -G) 912 defaultgroups="$2" 913 shift; shift 914 ;; 915 -h) 916 show_usage 917 exit 0 918 ;; 919 -d) 920 homeprefix="$2" 921 shift; shift 922 ;; 923 -m) 924 case "$2" in 925 [Nn][Oo]) 926 msgflag= 927 ;; 928 *) 929 msgflag=yes 930 msgfile="$2" 931 ;; 932 esac 933 shift; shift 934 ;; 935 -N) 936 readconfig= 937 shift 938 ;; 939 -w) 940 case "$2" in 941 no|none|random|yes) 942 passwdtype=$2 943 ;; 944 *) 945 show_usage 946 exit 1 947 ;; 948 esac 949 shift; shift 950 ;; 951 -q) 952 quietflag=yes 953 shift 954 ;; 955 -s) 956 defaultshell="`fullpath_from_shell $2`" 957 shift; shift 958 ;; 959 -S) 960 Sflag=yes 961 shift 962 ;; 963 -u) 964 uidstart=$2 965 shift; shift 966 ;; 967 esac 968done 969 970# If the -f switch was used, get input from a file. Otherwise, 971# this is an interactive session. 972# 973if [ -n "$fflag" ]; then 974 if [ -z "$infile" ]; then 975 input_from_file 976 elif [ -n "$infile" ]; then 977 if [ -r "$infile" ]; then 978 input_from_file < $infile 979 else 980 err "File ($infile) is unreadable or does not exist." 981 fi 982 fi 983else 984 input_interactive 985 while : ; do 986 if [ -z "$configflag" ]; then 987 echo -n "Add another user? (yes/no): " 988 else 989 echo -n "Re-edit the default configuration? (yes/no): " 990 fi 991 read _input 992 case $_input in 993 [Yy][Ee][Ss]|[Yy][Ee]|[Yy]) 994 uidstart=`get_nextuid $uidstart` 995 input_interactive 996 continue 997 ;; 998 [Nn][Oo]|[Nn]) 999 echo "Goodbye!" 1000 ;; 1001 *) 1002 continue 1003 ;; 1004 esac 1005 break 1006 done 1007fi 1008