adduser/adduser.sh

   1 #!@MEMO_PREFIX@/bin/sh
   2 #
   3 # SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   4 #
   5 # Copyright (c) 2002-2004 Michael Telahun Makonnen. All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 #       Email: Mike Makonnen <mtm@FreeBSD.Org>
  28 #
  29 # $FreeBSD$
  30 #
  31
  32 # err msg
  33 #       Display $msg on stderr, unless we're being quiet.
  34 #
  35 err() {
  36         if [ -z "$quietflag" ]; then
  37                 echo 1>&2 ${THISCMD}: ERROR: $*
  38         fi
  39 }
  40
  41 # info msg
  42 #       Display $msg on stdout, unless we're being quiet.
  43 #
  44 info() {
  45         if [ -z "$quietflag" ]; then
  46                 echo ${THISCMD}: INFO: $*
  47         fi
  48 }
  49
  50 # get_nextuid
  51 #       Output the value of $_uid if it is available for use. If it
  52 #       is not, output the value of the next higher uid that is available.
  53 #       If a uid is not specified, output the first available uid, as indicated
  54 #       by pw(8).
  55 #
  56 get_nextuid () {
  57         _uid=$1
  58         _nextuid=
  59
  60         if [ -z "$_uid" ]; then
  61                 _nextuid="`${PWCMD} usernext | cut -f1 -d:`"
  62         else
  63                 while : ; do
  64                         ${PWCMD} usershow $_uid > /dev/null 2>&1
  65                         if [ ! "$?" -eq 0 ]; then
  66                                 _nextuid=$_uid
  67                                 break
  68                         fi
  69                         _uid=$(($_uid + 1))
  70                 done
  71         fi
  72         echo $_nextuid
  73 }
  74
  75 # show_usage
  76 #       Display usage information for this utility.
  77 #
  78 show_usage() {
  79         echo "usage: ${THISCMD} [options]"
  80         echo "  options may include:"
  81         echo "  -C              save to the configuration file only"
  82         echo "  -D              do not attempt to create the home directory"
  83         echo "  -E              disable this account after creation"
  84         echo "  -G              additional groups to add accounts to"
  85         echo "  -L              login class of the user"
  86         echo "  -M              file permission for home directory"
  87         echo "  -N              do not read configuration file"
  88         echo "  -S              a nonexistent shell is not an error"
  89         echo "  -d              home directory"
  90         echo "  -f              file from which input will be received"
  91         echo "  -g              default login group"
  92         echo "  -h              display this usage message"
  93         echo "  -k              path to skeleton home directory"
  94         echo "  -m              user welcome message file"
  95         echo "  -q              absolute minimal user feedback"
  96         echo "  -s              shell"
  97         echo "  -u              uid to start at"
  98         echo "  -w              password type: no, none, yes or random"
  99 }
 100
 101 # valid_shells
 102 #       Outputs a list of valid shells from /etc/shells. Only the
 103 #       basename of the shell is output.
 104 #
 105 valid_shells() {
 106         _prefix=
 107         cat ${ETCSHELLS} |
 108         while read _path _junk ; do
 109                 case $_path in
 110                 \#*|'')
 111                         ;;
 112                 *)
 113                         echo -n "${_prefix}`basename $_path`"
 114                         _prefix=' '
 115                         ;;
 116                 esac
 117         done
 118
 119         # /usr/sbin/nologin is a special case
 120         [ -x "${NOLOGIN_PATH}" ] && echo -n " ${NOLOGIN}"
 121 }
 122
 123 # fullpath_from_shell shell
 124 #       Given $shell, which is either the full path to a shell or
 125 #       the basename component of a valid shell, get the
 126 #       full path to the shell from the /etc/shells file.
 127 #
 128 fullpath_from_shell() {
 129         _shell=$1
 130         [ -z "$_shell" ] && return 1
 131
 132         # /usr/sbin/nologin is a special case; it needs to be handled
 133         # before the cat | while loop, since a 'return' from within
 134         # a subshell will not terminate the function's execution, and
 135         # the path to the nologin shell might be printed out twice.
 136         #
 137         if [ "$_shell" = "${NOLOGIN}" -o \
 138             "$_shell" = "${NOLOGIN_PATH}" ]; then
 139                 echo ${NOLOGIN_PATH}
 140                 return 0;
 141         fi
 142
 143         cat ${ETCSHELLS} |
 144         while read _path _junk ; do
 145                 case "$_path" in
 146                 \#*|'')
 147                         ;;
 148                 *)
 149                         if [ "$_path" = "$_shell" -o \
 150                             "`basename $_path`" = "$_shell" ]; then
 151                                 echo $_path
 152                                 return 0
 153                         fi
 154                         ;;
 155                 esac
 156         done
 157
 158         return 1
 159 }
 160
 161 # shell_exists shell
 162 #       If the given shell is listed in ${ETCSHELLS} or it is
 163 #       the nologin shell this function will return 0.
 164 #       Otherwise, it will return 1. If shell is valid but
 165 #       the path is invalid or it is not executable it
 166 #       will emit an informational message saying so.
 167 #
 168 shell_exists() {
 169         _sh="$1"
 170         _shellchk="${GREPCMD} '^$_sh$' ${ETCSHELLS} > /dev/null 2>&1"
 171
 172         if ! eval $_shellchk; then
 173                 # The nologin shell is not listed in /etc/shells.
 174                 if [ "$_sh" != "${NOLOGIN_PATH}" ]; then
 175                         err "Invalid shell ($_sh) for user $username."
 176                         return 1
 177                 fi
 178         fi
 179         ! [ -x "$_sh" ] &&
 180             info "The shell ($_sh) does not exist or is not executable."
 181
 182         return 0
 183 }
 184
 185 # save_config
 186 #       Save some variables to a configuration file.
 187 #       Note: not all script variables are saved, only those that
 188 #             it makes sense to save.
 189 #
 190 save_config() {
 191         echo "# Configuration file for adduser(8)."     >  ${ADDUSERCONF}
 192         echo "# NOTE: only *some* variables are saved." >> ${ADDUSERCONF}
 193         echo "# Last Modified on `${DATECMD}`."         >> ${ADDUSERCONF}
 194         echo ''                         >> ${ADDUSERCONF}
 195         echo "defaultHomePerm=$uhomeperm" >> ${ADDUSERCONF}
 196         echo "defaultLgroup=$ulogingroup" >> ${ADDUSERCONF}
 197         echo "defaultclass=$uclass"     >> ${ADDUSERCONF}
 198         echo "defaultgroups=$ugroups"   >> ${ADDUSERCONF}
 199         echo "passwdtype=$passwdtype"   >> ${ADDUSERCONF}
 200         echo "homeprefix=$homeprefix"   >> ${ADDUSERCONF}
 201         echo "defaultshell=$ushell"     >> ${ADDUSERCONF}
 202         echo "udotdir=$udotdir"         >> ${ADDUSERCONF}
 203         echo "msgfile=$msgfile"         >> ${ADDUSERCONF}
 204         echo "disableflag=$disableflag" >> ${ADDUSERCONF}
 205         echo "uidstart=$uidstart"       >> ${ADDUSERCONF}
 206 }
 207
 208 # add_user
 209 #       Add a user to the user database. If the user chose to send a welcome
 210 #       message or lock the account, do so.
 211 #
 212 add_user() {
 213
 214         # Is this a configuration run? If so, don't modify user database.
 215         #
 216         if [ -n "$configflag" ]; then
 217                 save_config
 218                 return
 219         fi
 220
 221         _uid=
 222         _name=
 223         _comment=
 224         _gecos=
 225         _home=
 226         _group=
 227         _grouplist=
 228         _shell=
 229         _class=
 230         _dotdir=
 231         _expire=
 232         _pwexpire=
 233         _passwd=
 234         _upasswd=
 235         _passwdmethod=
 236
 237         _name="-n '$username'"
 238         [ -n "$uuid" ] && _uid='-u "$uuid"'
 239         [ -n "$ulogingroup" ] && _group='-g "$ulogingroup"'
 240         [ -n "$ugroups" ] && _grouplist='-G "$ugroups"'
 241         [ -n "$ushell" ] && _shell='-s "$ushell"'
 242         [ -n "$uclass" ] && _class='-L "$uclass"'
 243         [ -n "$ugecos" ] && _comment='-c "$ugecos"'
 244         [ -n "$udotdir" ] && _dotdir='-k "$udotdir"'
 245         [ -n "$uexpire" ] && _expire='-e "$uexpire"'
 246         [ -n "$upwexpire" ] && _pwexpire='-p "$upwexpire"'
 247         if [ -z "$Dflag" -a -n "$uhome" ]; then
 248                 # The /nonexistent home directory is special. It
 249                 # means the user has no home directory.
 250                 if [ "$uhome" = "$NOHOME" ]; then
 251                         _home='-d "$uhome"'
 252                 else
 253                         # Use home directory permissions if specified
 254                         if [ -n "$uhomeperm" ]; then
 255                                 _home='-m -d "$uhome" -M "$uhomeperm"'
 256                         else
 257                                 _home='-m -d "$uhome"'
 258                         fi
 259                 fi
 260         elif [ -n "$Dflag" -a -n "$uhome" ]; then
 261                 _home='-d "$uhome"'
 262         fi
 263         case $passwdtype in
 264         no)
 265                 _passwdmethod="-w no"
 266                 _passwd="-h -"
 267                 ;;
 268         yes)
 269                 # Note on processing the password: The outer double quotes
 270                 # make literal everything except ` and \ and $.
 271                 # The outer single quotes make literal ` and $.
 272                 # We can ensure the \ isn't treated specially by specifying
 273                 # the -r switch to the read command used to obtain the input.
 274                 #
 275                 _passwdmethod="-w yes"
 276                 _passwd="-h 0"
 277                 _upasswd='echo "$upass" |'
 278                 ;;
 279         none)
 280                 _passwdmethod="-w none"
 281                 ;;
 282         random)
 283                 _passwdmethod="-w random"
 284                 ;;
 285         esac
 286
 287         _pwcmd="$_upasswd ${PWCMD} useradd $_uid $_name $_group $_grouplist $_comment"
 288         _pwcmd="$_pwcmd $_shell $_class $_home $_dotdir $_passwdmethod $_passwd"
 289         _pwcmd="$_pwcmd $_expire $_pwexpire"
 290
 291         if ! _output=`eval $_pwcmd` ; then
 292                 err "There was an error adding user ($username)."
 293                 return 1
 294         else
 295                 info "Successfully added ($username) to the user database."
 296                 if [ "random" = "$passwdtype" ]; then
 297                         randompass="$_output"
 298                         info "Password for ($username) is: $randompass"
 299                 fi
 300         fi
 301
 302         if [ -n "$disableflag" ]; then
 303                 if ${PWCMD} lock $username ; then
 304                         info "Account ($username) is locked."
 305                 else
 306                         info "Account ($username) could NOT be locked."
 307                 fi
 308         fi
 309
 310         _line=
 311         _owner=
 312         _perms=
 313         if [ -n "$msgflag" ]; then
 314                 [ -r "$msgfile" ] && {
 315                         # We're evaluating the contents of an external file.
 316                         # Let's not open ourselves up for attack. _perms will
 317                         # be empty if it's writeable only by the owner. _owner
 318                         # will *NOT* be empty if the file is owned by root.
 319                         #
 320                         _dir="`dirname $msgfile`"
 321                         _file="`basename $msgfile`"
 322                         _perms=`@MEMO_PREFIX@@MEMO_SUB_PREFIX@/bin/find $_dir -name $_file -perm +07022 -prune`
 323                         _owner=`@MEMO_PREFIX@@MEMO_SUB_PREFIX@/bin/find $_dir -name $_file -user 0 -prune`
 324                         if [ -z "$_owner" -o -n "$_perms" ]; then
 325                                 err "The message file ($msgfile) may be writeable only by root."
 326                                 return 1
 327                         fi
 328                         cat "$msgfile" |
 329                         while read _line ; do
 330                                 eval echo "$_line"
 331                         done | ${MAILCMD} -s"Welcome" ${username}
 332                         info "Sent welcome message to ($username)."
 333                 }
 334         fi
 335 }
 336
 337 # get_user
 338 #       Reads username of the account from standard input or from a global
 339 #       variable containing an account line from a file. The username is
 340 #       required. If this is an interactive session it will prompt in
 341 #       a loop until a username is entered. If it is batch processing from
 342 #       a file it will output an error message and return to the caller.
 343 #
 344 get_user() {
 345         _input=
 346
 347         # No need to take down user names if this is a configuration saving run.
 348         [ -n "$configflag" ] && return
 349
 350         while : ; do
 351                 if [ -z "$fflag" ]; then
 352                         echo -n "Username: "
 353                         read _input
 354                 else
 355                         _input="`echo "$fileline" | cut -f1 -d:`"
 356                 fi
 357
 358                 # There *must* be a username, and it must not exist. If
 359                 # this is an interactive session give the user an
 360                 # opportunity to retry.
 361                 #
 362                 if [ -z "$_input" ]; then
 363                         err "You must enter a username!"
 364                         [ -z "$fflag" ] && continue
 365                 fi
 366                 ${PWCMD} usershow $_input > /dev/null 2>&1
 367                 if [ "$?" -eq 0 ]; then
 368                         err "User exists!"
 369                         [ -z "$fflag" ] && continue
 370                 fi
 371                 break
 372         done
 373         username="$_input"
 374 }
 375
 376 # get_gecos
 377 #       Reads extra information about the user. Can be used both in interactive
 378 #       and batch (from file) mode.
 379 #
 380 get_gecos() {
 381         _input=
 382
 383         # No need to take down additional user information for a configuration run.
 384         [ -n "$configflag" ] && return
 385
 386         if [ -z "$fflag" ]; then
 387                 echo -n "Full name: "
 388                 read _input
 389         else
 390                 _input="`echo "$fileline" | cut -f7 -d:`"
 391         fi
 392         ugecos="$_input"
 393 }
 394
 395 # get_shell
 396 #       Get the account's shell. Works in interactive and batch mode. It
 397 #       accepts either the base name of the shell or the full path.
 398 #       If an invalid shell is entered it will simply use the default shell.
 399 #
 400 get_shell() {
 401         _input=
 402         _fullpath=
 403         ushell="$defaultshell"
 404
 405         # Make sure the current value of the shell is a valid one
 406         if [ -z "$Sflag" ]; then
 407                 if ! shell_exists $ushell ; then
 408                         info "Using default shell ${defaultshell}."
 409                         ushell="$defaultshell"
 410                 fi
 411         fi
 412
 413         if [ -z "$fflag" ]; then
 414                 echo -n "Shell ($shells) [`basename $ushell`]: "
 415                 read _input
 416         else
 417                 _input="`echo "$fileline" | cut -f9 -d:`"
 418         fi
 419         if [ -n "$_input" ]; then
 420                 if [ -n "$Sflag" ]; then
 421                         ushell="$_input"
 422                 else
 423                         _fullpath=`fullpath_from_shell $_input`
 424                         if [ -n "$_fullpath" ]; then
 425                                 ushell="$_fullpath"
 426                         else
 427                                 err "Invalid shell ($_input) for user $username."
 428                                 info "Using default shell ${defaultshell}."
 429                                 ushell="$defaultshell"
 430                         fi
 431                 fi
 432         fi
 433 }
 434
 435 # get_homedir
 436 #       Reads the account's home directory. Used both with interactive input
 437 #       and batch input.
 438 #
 439 get_homedir() {
 440         _input=
 441         if [ -z "$fflag" ]; then
 442                 echo -n "Home directory [${homeprefix}/${username}]: "
 443                 read _input
 444         else
 445                 _input="`echo "$fileline" | cut -f8 -d:`"
 446         fi
 447
 448         if [ -n "$_input" ]; then
 449                 uhome="$_input"
 450                 # if this is a configuration run, then user input is the home
 451                 # directory prefix. Otherwise it is understood to
 452                 # be $prefix/$user
 453                 #
 454                 [ -z "$configflag" ] && homeprefix="`dirname $uhome`" || homeprefix="$uhome"
 455         else
 456                 uhome="${homeprefix}/${username}"
 457         fi
 458 }
 459
 460 # get_homeperm
 461 #       Reads the account's home directory permissions.
 462 #
 463 get_homeperm() {
 464         uhomeperm=$defaultHomePerm
 465         _input=
 466         _prompt=
 467
 468         if [ -n "$uhomeperm" ]; then
 469                 _prompt="Home directory permissions [${uhomeperm}]: "
 470         else
 471                 _prompt="Home directory permissions (Leave empty for default): "
 472         fi
 473         if [ -z "$fflag" ]; then
 474                 echo -n "$_prompt"
 475                 read _input
 476         fi
 477
 478         if [ -n "$_input" ]; then
 479                 uhomeperm="$_input"
 480         fi
 481 }
 482
 483 # get_uid
 484 #       Reads a numeric userid in an interactive or batch session. Automatically
 485 #       allocates one if it is not specified.
 486 #
 487 get_uid() {
 488         uuid=${uidstart}
 489         _input=
 490         _prompt=
 491
 492         if [ -n "$uuid" ]; then
 493                 uuid=`get_nextuid $uuid`
 494                 _prompt="Uid [$uuid]: "
 495         else
 496                 _prompt="Uid (Leave empty for default): "
 497         fi
 498         if [ -z "$fflag" ]; then
 499                 echo -n "$_prompt"
 500                 read _input
 501         else
 502                 _input="`echo "$fileline" | cut -f2 -d:`"
 503         fi
 504
 505         [ -n "$_input" ] && uuid=$_input
 506         uuid=`get_nextuid $uuid`
 507         uidstart=$uuid
 508 }
 509
 510 # get_class
 511 #       Reads login class of account. Can be used in interactive or batch mode.
 512 #
 513 get_class() {
 514         uclass="$defaultclass"
 515         _input=
 516         _class=${uclass:-"default"}
 517
 518         if [ -z "$fflag" ]; then
 519                 echo -n "Login class [$_class]: "
 520                 read _input
 521         else
 522                 _input="`echo "$fileline" | cut -f4 -d:`"
 523         fi
 524
 525         [ -n "$_input" ] && uclass="$_input"
 526 }
 527
 528 # get_logingroup
 529 #       Reads user's login group. Can be used in both interactive and batch
 530 #       modes. The specified value can be a group name or its numeric id.
 531 #       This routine leaves the field blank if nothing is provided and
 532 #       a default login group has not been set. The pw(8) command
 533 #       will then provide a login group with the same name as the username.
 534 #
 535 get_logingroup() {
 536         ulogingroup="$defaultLgroup"
 537         _input=
 538
 539         if [ -z "$fflag" ]; then
 540                 echo -n "Login group [${ulogingroup:-$username}]: "
 541                 read _input
 542         else
 543                 _input="`echo "$fileline" | cut -f3 -d:`"
 544         fi
 545
 546         # Pw(8) will use the username as login group if it's left empty
 547         [ -n "$_input" ] && ulogingroup="$_input"
 548 }
 549
 550 # get_groups
 551 #       Read additional groups for the user. It can be used in both interactive
 552 #       and batch modes.
 553 #
 554 get_groups() {
 555         ugroups="$defaultgroups"
 556         _input=
 557         _group=${ulogingroup:-"${username}"}
 558
 559         if [ -z "$configflag" ]; then
 560                 [ -z "$fflag" ] && echo -n "Login group is $_group. Invite $username"
 561                 [ -z "$fflag" ] && echo -n " into other groups? [$ugroups]: "
 562         else
 563                 [ -z "$fflag" ] && echo -n "Enter additional groups [$ugroups]: "
 564         fi
 565         read _input
 566
 567         [ -n "$_input" ] && ugroups="$_input"
 568 }
 569
 570 # get_expire_dates
 571 #       Read expiry information for the account and also for the password. This
 572 #       routine is used only from batch processing mode.
 573 #
 574 get_expire_dates() {
 575         upwexpire="`echo "$fileline" | cut -f5 -d:`"
 576         uexpire="`echo "$fileline" | cut -f6 -d:`"
 577 }
 578
 579 # get_password
 580 #       Read the password in batch processing mode. The password field matters
 581 #       only when the password type is "yes" or "random". If the field is empty and the
 582 #       password type is "yes", then it assumes the account has an empty passsword
 583 #       and changes the password type accordingly. If the password type is "random"
 584 #       and the password field is NOT empty, then it assumes the account will NOT
 585 #       have a random password and set passwdtype to "yes."
 586 #
 587 get_password() {
 588         # We may temporarily change a password type. Make sure it's changed
 589         # back to whatever it was before we process the next account.
 590         #
 591         [ -n "$savedpwtype" ] && {
 592                 passwdtype=$savedpwtype
 593                 savedpwtype=
 594         }
 595
 596         # There may be a ':' in the password
 597         upass=${fileline#*:*:*:*:*:*:*:*:*:}
 598
 599         if [ -z "$upass" ]; then
 600                 case $passwdtype in
 601                 yes)
 602                         # if it's empty, assume an empty password
 603                         passwdtype=none
 604                         savedpwtype=yes
 605                         ;;
 606                 esac
 607         else
 608                 case $passwdtype in
 609                 random)
 610                         passwdtype=yes
 611                         savedpwtype=random
 612                         ;;
 613                 esac
 614         fi
 615 }
 616
 617 # input_from_file
 618 #       Reads a line of account information from standard input and
 619 #       adds it to the user database.
 620 #
 621 input_from_file() {
 622         _field=
 623
 624         while read -r fileline ; do
 625                 case "$fileline" in
 626                 \#*|'')
 627                         ;;
 628                 *)
 629                         get_user || continue
 630                         get_gecos
 631                         get_uid
 632                         get_logingroup
 633                         get_class
 634                         get_shell
 635                         get_homedir
 636                         get_homeperm
 637                         get_password
 638                         get_expire_dates
 639                         ugroups="$defaultgroups"
 640
 641                         add_user
 642                         ;;
 643                 esac
 644         done
 645 }
 646
 647 # input_interactive
 648 #       Prompts for user information interactively, and commits to
 649 #       the user database.
 650 #
 651 input_interactive() {
 652         _disable=
 653         _pass=
 654         _passconfirm=
 655         _random="no"
 656         _emptypass="no"
 657         _usepass="yes"
 658         _logingroup_ok="no"
 659         _groups_ok="no"
 660         case $passwdtype in
 661         none)
 662                 _emptypass="yes"
 663                 _usepass="yes"
 664                 ;;
 665         no)
 666                 _usepass="no"
 667                 ;;
 668         random)
 669                 _random="yes"
 670                 ;;
 671         esac
 672
 673         get_user
 674         get_gecos
 675         get_uid
 676
 677         # The case where group = user is handled elsewhere, so
 678         # validate any other groups the user is invited to.
 679         until [ "$_logingroup_ok" = yes ]; do
 680                 get_logingroup
 681                 _logingroup_ok=yes
 682                 if [ -n "$ulogingroup" -a "$username" != "$ulogingroup" ]; then
 683                         if ! ${PWCMD} show group $ulogingroup > /dev/null 2>&1; then
 684                                 echo "Group $ulogingroup does not exist!"
 685                                 _logingroup_ok=no
 686                         fi
 687                 fi
 688         done
 689         until [ "$_groups_ok" = yes ]; do
 690                 get_groups
 691                 _groups_ok=yes
 692                 for i in $ugroups; do
 693                         if [ "$username" != "$i" ]; then
 694                                 if ! ${PWCMD} show group $i > /dev/null 2>&1; then
 695                                         echo "Group $i does not exist!"
 696                                         _groups_ok=no
 697                                 fi
 698                         fi
 699                 done
 700         done
 701
 702         get_class
 703         get_shell
 704         get_homedir
 705         get_homeperm
 706
 707         while : ; do
 708                 echo -n "Use password-based authentication? [$_usepass]: "
 709                 read _input
 710                 [ -z "$_input" ] && _input=$_usepass
 711                 case $_input in
 712                 [Nn][Oo]|[Nn])
 713                         passwdtype="no"
 714                         ;;
 715                 [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 716                         while : ; do
 717                                 echo -n "Use an empty password? (yes/no) [$_emptypass]: "
 718                                 read _input
 719                                 [ -n "$_input" ] && _emptypass=$_input
 720                                 case $_emptypass in
 721                                 [Nn][Oo]|[Nn])
 722                                         echo -n "Use a random password? (yes/no) [$_random]: "
 723                                         read _input
 724                                         [ -n "$_input" ] && _random="$_input"
 725                                         case $_random in
 726                                         [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 727                                                 passwdtype="random"
 728                                                 break
 729                                                 ;;
 730                                         esac
 731                                         passwdtype="yes"
 732                                         [ -n "$configflag" ] && break
 733                                         trap 'stty echo; exit' 0 1 2 3 15
 734                                         stty -echo
 735                                         echo -n "Enter password: "
 736                                         IFS= read -r upass
 737                                         echo''
 738                                         echo -n "Enter password again: "
 739                                         IFS= read -r _passconfirm
 740                                         echo ''
 741                                         stty echo
 742                                         # if user entered a blank password
 743                                         # explicitly ask again.
 744                                         [ -z "$upass" -a -z "$_passconfirm" ] \
 745                                             && continue
 746                                         ;;
 747                                 [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 748                                         passwdtype="none"
 749                                         break;
 750                                         ;;
 751                                 *)
 752                                         # invalid answer; repeat the loop
 753                                         continue
 754                                         ;;
 755                                 esac
 756                                 if [ "$upass" != "$_passconfirm" ]; then
 757                                         echo "Passwords did not match!"
 758                                         continue
 759                                 fi
 760                                 break
 761                         done
 762                         ;;
 763                 *)
 764                         # invalid answer; repeat loop
 765                         continue
 766                         ;;
 767                 esac
 768                 break;
 769         done
 770         _disable=${disableflag:-"no"}
 771         while : ; do
 772                 echo -n "Lock out the account after creation? [$_disable]: "
 773                 read _input
 774                 [ -z "$_input" ] && _input=$_disable
 775                 case $_input in
 776                 [Nn][Oo]|[Nn])
 777                         disableflag=
 778                         ;;
 779                 [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 780                         disableflag=yes
 781                         ;;
 782                 *)
 783                         # invalid answer; repeat loop
 784                         continue
 785                         ;;
 786                 esac
 787                 break
 788         done
 789
 790         # Display the information we have so far and prompt to
 791         # commit it.
 792         #
 793         _disable=${disableflag:-"no"}
 794         [ -z "$configflag" ] && printf "%-10s : %s\n" Username $username
 795         case $passwdtype in
 796         yes)
 797                 _pass='*****'
 798                 ;;
 799         no)
 800                 _pass='<disabled>'
 801                 ;;
 802         none)
 803                 _pass='<blank>'
 804                 ;;
 805         random)
 806                 _pass='<random>'
 807                 ;;
 808         esac
 809         [ -z "$configflag" ] && printf "%-10s : %s\n" "Password" "$_pass"
 810         [ -n "$configflag" ] && printf "%-10s : %s\n" "Pass Type" "$passwdtype"
 811         [ -z "$configflag" ] && printf "%-10s : %s\n" "Full Name" "$ugecos"
 812         [ -z "$configflag" ] && printf "%-10s : %s\n" "Uid" "$uuid"
 813         printf "%-10s : %s\n" "Class" "$uclass"
 814         printf "%-10s : %s %s\n" "Groups" "${ulogingroup:-$username}" "$ugroups"
 815         printf "%-10s : %s\n" "Home" "$uhome"
 816         printf "%-10s : %s\n" "Home Mode" "$uhomeperm"
 817         printf "%-10s : %s\n" "Shell" "$ushell"
 818         printf "%-10s : %s\n" "Locked" "$_disable"
 819         while : ; do
 820                 echo -n "OK? (yes/no): "
 821                 read _input
 822                 case $_input in
 823                 [Nn][Oo]|[Nn])
 824                         return 1
 825                         ;;
 826                 [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 827                         add_user
 828                         ;;
 829                 *)
 830                         continue
 831                         ;;
 832                 esac
 833                 break
 834         done
 835         return 0
 836 }
 837
 838 #### END SUBROUTINE DEFINITION ####
 839
 840 THISCMD=`@MEMO_PREFIX@@MEMO_SUB_PREFIX@/bin/basename $0`
 841 DEFAULTSHELL=@PREFIX@/bin/sh
 842 ADDUSERCONF="${ADDUSERCONF:-@MEMO_PREFIX@/etc/adduser.conf}"
 843 PWCMD="${PWCMD:-@MEMO_PREFIX@@MEMO_SUB_PREFIX@/sbin/pw}"
 844 MAILCMD="${MAILCMD:-mail}"
 845 ETCSHELLS="${ETCSHELLS:-@MEMO_PREFIX@/etc/shells}"
 846 NOHOME="@MEMO_PREFIX@/var/lib/empty"
 847 NOLOGIN="nologin"
 848 NOLOGIN_PATH="@MEMO_PREFIX@@MEMO_SUB_PREFIX@/sbin/nologin"
 849 GREPCMD="@MEMO_PREFIX@@MEMO_SUB_PREFIX@/bin/grep"
 850 DATECMD="@MEMO_PREFIX@/bin/date"
 851
 852 # Set default values
 853 #
 854 username=
 855 uuid=
 856 uidstart=
 857 ugecos=
 858 ulogingroup=
 859 uclass=
 860 uhome=
 861 uhomeperm=
 862 upass=
 863 ushell=
 864 udotdir=@MEMO_PREFIX@@MEMO_SUB_PREFIX@/share/skel
 865 ugroups=
 866 uexpire=
 867 upwexpire=
 868 shells="`valid_shells`"
 869 passwdtype="yes"
 870 msgfile=@MEMO_PREFIX@/etc/adduser.msg
 871 msgflag=
 872 quietflag=
 873 configflag=
 874 fflag=
 875 infile=
 876 disableflag=
 877 Dflag=
 878 Sflag=
 879 readconfig="yes"
 880 homeprefix="@MEMO_PREFIX@/var"
 881 randompass=
 882 fileline=
 883 savedpwtype=
 884 defaultclass=
 885 defaultLgroup=
 886 defaultgroups=
 887 defaultshell="${DEFAULTSHELL}"
 888 defaultHomePerm=
 889
 890 # Make sure the user running this program is root. This isn't a security
 891 # measure as much as it is a useful method of reminding the user to
 892 # 'su -' before he/she wastes time entering data that won't be saved.
 893 #
 894 procowner=${procowner:-`@MEMO_PREFIX@@MEMO_SUB_PREFIX@/bin/id -u`}
 895 if [ "$procowner" != "0" ]; then
 896         err 'you must be the super-user (uid 0) to use this utility.'
 897         exit 1
 898 fi
 899
 900 # Override from our conf file
 901 # Quickly go through the commandline line to see if we should read
 902 # from our configuration file. The actual parsing of the commandline
 903 # arguments happens after we read in our configuration file (commandline
 904 # should override configuration file).
 905 #
 906 for _i in $* ; do
 907         if [ "$_i" = "-N" ]; then
 908                 readconfig=
 909                 break;
 910         fi
 911 done
 912 if [ -n "$readconfig" ]; then
 913         # On a long-lived system, the first time this script is run it
 914         # will barf upon reading the configuration file for its perl predecessor.
 915         if ( . ${ADDUSERCONF} > /dev/null 2>&1 ); then
 916                 [ -r ${ADDUSERCONF} ] && . ${ADDUSERCONF} > /dev/null 2>&1
 917         fi
 918 fi
 919
 920 # Process command-line options
 921 #
 922 for _switch ; do
 923         case $_switch in
 924         -L)
 925                 defaultclass="$2"
 926                 shift; shift
 927                 ;;
 928         -C)
 929                 configflag=yes
 930                 shift
 931                 ;;
 932         -D)
 933                 Dflag=yes
 934                 shift
 935                 ;;
 936         -E)
 937                 disableflag=yes
 938                 shift
 939                 ;;
 940         -k)
 941                 udotdir="$2"
 942                 shift; shift
 943                 ;;
 944         -f)
 945                 [ "$2" != "-" ] && infile="$2"
 946                 fflag=yes
 947                 shift; shift
 948                 ;;
 949         -g)
 950                 defaultLgroup="$2"
 951                 shift; shift
 952                 ;;
 953         -G)
 954                 defaultgroups="$2"
 955                 shift; shift
 956                 ;;
 957         -h)
 958                 show_usage
 959                 exit 0
 960                 ;;
 961         -d)
 962                 homeprefix="$2"
 963                 shift; shift
 964                 ;;
 965         -m)
 966                 case "$2" in
 967                 [Nn][Oo])
 968                         msgflag=
 969                         ;;
 970                 *)
 971                         msgflag=yes
 972                         msgfile="$2"
 973                         ;;
 974                 esac
 975                 shift; shift
 976                 ;;
 977         -M)
 978                 defaultHomePerm=$2
 979                 shift; shift
 980                 ;;
 981         -N)
 982                 readconfig=
 983                 shift
 984                 ;;
 985         -w)
 986                 case "$2" in
 987                 no|none|random|yes)
 988                         passwdtype=$2
 989                         ;;
 990                 *)
 991                         show_usage
 992                         exit 1
 993                         ;;
 994                 esac
 995                 shift; shift
 996                 ;;
 997         -q)
 998                 quietflag=yes
 999                 shift
1000                 ;;
1001         -s)
1002                 defaultshell="`fullpath_from_shell $2`"
1003                 shift; shift
1004                 ;;
1005         -S)
1006                 Sflag=yes
1007                 shift
1008                 ;;
1009         -u)
1010                 uidstart=$2
1011                 shift; shift
1012                 ;;
1013         esac
1014 done
1015
1016 # If the -f switch was used, get input from a file. Otherwise,
1017 # this is an interactive session.
1018 #
1019 if [ -n "$fflag" ]; then
1020         if [ -z "$infile" ]; then
1021                 input_from_file
1022         elif [ -n "$infile" ]; then
1023                 if [ -r "$infile" ]; then
1024                         input_from_file < $infile
1025                 else
1026                         err "File ($infile) is unreadable or does not exist."
1027                 fi
1028         fi
1029 else
1030         input_interactive
1031         while : ; do
1032                 if [ -z "$configflag" ]; then
1033                         echo -n "Add another user? (yes/no): "
1034                 else
1035                         echo -n "Re-edit the default configuration? (yes/no): "
1036                 fi
1037                 read _input
1038                 case $_input in
1039                 [Yy][Ee][Ss]|[Yy][Ee]|[Yy])
1040                         uidstart=`get_nextuid $uidstart`
1041                         input_interactive
1042                         continue
1043                         ;;
1044                 [Nn][Oo]|[Nn])
1045                         echo "Goodbye!"
1046                         ;;
1047                 *)
1048                         continue
1049                         ;;
1050                 esac
1051                 break
1052         done
1053 fi