Index: head/usr.sbin/adduser/adduser.sh
===================================================================
--- head/usr.sbin/adduser/adduser.sh	(revision 359641)
+++ head/usr.sbin/adduser/adduser.sh	(revision 359642)
@@ -1,1053 +1,1053 @@
 #!/bin/sh
 #
 # SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 #
 # Copyright (c) 2002-2004 Michael Telahun Makonnen. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 #       Email: Mike Makonnen <mtm@FreeBSD.Org>
 #
 # $FreeBSD$
 #
 
 # err msg
 #	Display $msg on stderr, unless we're being quiet.
 #
 err() {
 	if [ -z "$quietflag" ]; then
 		echo 1>&2 ${THISCMD}: ERROR: $*
 	fi
 }
 
 # info msg
 #	Display $msg on stdout, unless we're being quiet.
 #
 info() {
 	if [ -z "$quietflag" ]; then
 		echo ${THISCMD}: INFO: $*
 	fi
 }
 
 # get_nextuid
 #	Output the value of $_uid if it is available for use. If it
 #	is not, output the value of the next higher uid that is available.
 #	If a uid is not specified, output the first available uid, as indicated
 #	by pw(8).
 #
 get_nextuid () {
 	_uid=$1
 	_nextuid=
 
 	if [ -z "$_uid" ]; then
 		_nextuid="`${PWCMD} usernext | cut -f1 -d:`"
 	else
 		while : ; do
 			${PWCMD} usershow $_uid > /dev/null 2>&1
 			if [ ! "$?" -eq 0 ]; then
 				_nextuid=$_uid
 				break
 			fi
 			_uid=$(($_uid + 1))
 		done
 	fi
 	echo $_nextuid
 }
 
 # show_usage
 #	Display usage information for this utility.
 #
 show_usage() {
 	echo "usage: ${THISCMD} [options]"
 	echo "  options may include:"
 	echo "  -C		save to the configuration file only"
 	echo "  -D		do not attempt to create the home directory"
 	echo "  -E		disable this account after creation"
 	echo "  -G		additional groups to add accounts to"
 	echo "  -L		login class of the user"
 	echo "  -M		file permission for home directory"
 	echo "  -N		do not read configuration file"
 	echo "  -S		a nonexistent shell is not an error"
 	echo "  -d		home directory"
 	echo "  -f		file from which input will be received"
 	echo "  -g		default login group"
 	echo "  -h		display this usage message"
 	echo "  -k		path to skeleton home directory"
 	echo "  -m		user welcome message file"
 	echo "  -q		absolute minimal user feedback"
 	echo "  -s		shell"
 	echo "  -u		uid to start at"
 	echo "  -w		password type: no, none, yes or random"
 }
 
 # valid_shells
 #	Outputs a list of valid shells from /etc/shells. Only the
 #	basename of the shell is output.
 #
 valid_shells() {
 	_prefix=
 	cat ${ETCSHELLS} |
 	while read _path _junk ; do
 		case $_path in
 		\#*|'')
 			;;
 		*)
 			echo -n "${_prefix}`basename $_path`"
 			_prefix=' '
 			;;
 		esac
 	done
 
 	# /usr/sbin/nologin is a special case
 	[ -x "${NOLOGIN_PATH}" ] && echo -n " ${NOLOGIN}"
 }
 
 # fullpath_from_shell shell
 #	Given $shell, which is either the full path to a shell or
 #	the basename component of a valid shell, get the
 #	full path to the shell from the /etc/shells file.
 #
 fullpath_from_shell() {
 	_shell=$1
 	[ -z "$_shell" ] && return 1
 
 	# /usr/sbin/nologin is a special case; it needs to be handled
 	# before the cat | while loop, since a 'return' from within
 	# a subshell will not terminate the function's execution, and
 	# the path to the nologin shell might be printed out twice.
 	#
 	if [ "$_shell" = "${NOLOGIN}" -o \
 	    "$_shell" = "${NOLOGIN_PATH}" ]; then
 		echo ${NOLOGIN_PATH}
 		return 0;
 	fi
 
 	cat ${ETCSHELLS} |
 	while read _path _junk ; do
 		case "$_path" in
 		\#*|'')
 			;;
 		*)
 			if [ "$_path" = "$_shell" -o \
 			    "`basename $_path`" = "$_shell" ]; then
 				echo $_path
 				return 0
 			fi
 			;;
 		esac
 	done
 
 	return 1
 }
 
 # shell_exists shell
 #	If the given shell is listed in ${ETCSHELLS} or it is
 #	the nologin shell this function will return 0.
 #	Otherwise, it will return 1. If shell is valid but
 #	the path is invalid or it is not executable it
 #	will emit an informational message saying so.
 #
 shell_exists() {
 	_sh="$1"
 	_shellchk="${GREPCMD} '^$_sh$' ${ETCSHELLS} > /dev/null 2>&1"
 
 	if ! eval $_shellchk; then
 		# The nologin shell is not listed in /etc/shells.
 		if [ "$_sh" != "${NOLOGIN_PATH}" ]; then
 			err "Invalid shell ($_sh) for user $username."
 			return 1
 		fi
 	fi
 	! [ -x "$_sh" ] &&
 	    info "The shell ($_sh) does not exist or is not executable."
 
 	return 0
 }
 
 # save_config
 #	Save some variables to a configuration file.
 #	Note: not all script variables are saved, only those that
 #	      it makes sense to save.
 #
 save_config() {
 	echo "# Configuration file for adduser(8)."     >  ${ADDUSERCONF}
 	echo "# NOTE: only *some* variables are saved." >> ${ADDUSERCONF}
 	echo "# Last Modified on `${DATECMD}`."		>> ${ADDUSERCONF}
 	echo ''				>> ${ADDUSERCONF}
 	echo "defaultHomePerm=$uhomeperm" >> ${ADDUSERCONF}
 	echo "defaultLgroup=$ulogingroup" >> ${ADDUSERCONF}
 	echo "defaultclass=$uclass"	>> ${ADDUSERCONF}
 	echo "defaultgroups=$ugroups"	>> ${ADDUSERCONF}
 	echo "passwdtype=$passwdtype" 	>> ${ADDUSERCONF}
 	echo "homeprefix=$homeprefix" 	>> ${ADDUSERCONF}
 	echo "defaultshell=$ushell"	>> ${ADDUSERCONF}
 	echo "udotdir=$udotdir"		>> ${ADDUSERCONF}
 	echo "msgfile=$msgfile"		>> ${ADDUSERCONF}
 	echo "disableflag=$disableflag" >> ${ADDUSERCONF}
 	echo "uidstart=$uidstart"       >> ${ADDUSERCONF}
 }
 
 # add_user
 #	Add a user to the user database. If the user chose to send a welcome
 #	message or lock the account, do so.
 #
 add_user() {
 
 	# Is this a configuration run? If so, don't modify user database.
 	#
 	if [ -n "$configflag" ]; then
 		save_config
 		return
 	fi
 
 	_uid=
 	_name=
 	_comment=
 	_gecos=
 	_home=
 	_group=
 	_grouplist=
 	_shell=
 	_class=
 	_dotdir=
 	_expire=
 	_pwexpire=
 	_passwd=
 	_upasswd=
 	_passwdmethod=
 
 	_name="-n '$username'"
 	[ -n "$uuid" ] && _uid='-u "$uuid"'
 	[ -n "$ulogingroup" ] && _group='-g "$ulogingroup"'
 	[ -n "$ugroups" ] && _grouplist='-G "$ugroups"'
 	[ -n "$ushell" ] && _shell='-s "$ushell"'
 	[ -n "$uclass" ] && _class='-L "$uclass"'
 	[ -n "$ugecos" ] && _comment='-c "$ugecos"'
 	[ -n "$udotdir" ] && _dotdir='-k "$udotdir"'
 	[ -n "$uexpire" ] && _expire='-e "$uexpire"'
 	[ -n "$upwexpire" ] && _pwexpire='-p "$upwexpire"'
 	if [ -z "$Dflag" -a -n "$uhome" ]; then
 		# The /nonexistent home directory is special. It
 		# means the user has no home directory.
 		if [ "$uhome" = "$NOHOME" ]; then
 			_home='-d "$uhome"'
 		else
 			# Use home directory permissions if specified
 			if [ -n "$uhomeperm" ]; then
 				_home='-m -d "$uhome" -M "$uhomeperm"'
 			else
 				_home='-m -d "$uhome"'
 			fi
 		fi
 	elif [ -n "$Dflag" -a -n "$uhome" ]; then
 		_home='-d "$uhome"'
 	fi
 	case $passwdtype in
 	no)
 		_passwdmethod="-w no"
 		_passwd="-h -"
 		;;
 	yes)
 		# Note on processing the password: The outer double quotes
 		# make literal everything except ` and \ and $.
 		# The outer single quotes make literal ` and $.
 		# We can ensure the \ isn't treated specially by specifying
 		# the -r switch to the read command used to obtain the input.
 		#
 		_passwdmethod="-w yes"
 		_passwd="-h 0"
 		_upasswd='echo "$upass" |'
 		;;
 	none)
 		_passwdmethod="-w none"
 		;;
 	random)
 		_passwdmethod="-w random"
 		;;
 	esac
 
 	_pwcmd="$_upasswd ${PWCMD} useradd $_uid $_name $_group $_grouplist $_comment"
 	_pwcmd="$_pwcmd $_shell $_class $_home $_dotdir $_passwdmethod $_passwd"
 	_pwcmd="$_pwcmd $_expire $_pwexpire"
 
 	if ! _output=`eval $_pwcmd` ; then
 		err "There was an error adding user ($username)."
 		return 1
 	else
 		info "Successfully added ($username) to the user database."
 		if [ "random" = "$passwdtype" ]; then
 			randompass="$_output"
 			info "Password for ($username) is: $randompass"
 		fi
 	fi
 
 	if [ -n "$disableflag" ]; then
 		if ${PWCMD} lock $username ; then
 			info "Account ($username) is locked."
 		else
 			info "Account ($username) could NOT be locked."
 		fi
 	fi
 
 	_line=
 	_owner=
 	_perms=
 	if [ -n "$msgflag" ]; then
 		[ -r "$msgfile" ] && {
 			# We're evaluating the contents of an external file.
 			# Let's not open ourselves up for attack. _perms will
 			# be empty if it's writeable only by the owner. _owner
 			# will *NOT* be empty if the file is owned by root.
 			#
 			_dir="`dirname $msgfile`"
 			_file="`basename $msgfile`"
 			_perms=`/usr/bin/find $_dir -name $_file -perm +07022 -prune`
 			_owner=`/usr/bin/find $_dir -name $_file -user 0 -prune`
 			if [ -z "$_owner" -o -n "$_perms" ]; then
 				err "The message file ($msgfile) may be writeable only by root."
 				return 1
 			fi
 			cat "$msgfile" |
 			while read _line ; do
 				eval echo "$_line"
 			done | ${MAILCMD} -s"Welcome" ${username}
 			info "Sent welcome message to ($username)."
 		}
 	fi
 }
 
 # get_user
 #	Reads username of the account from standard input or from a global
 #	variable containing an account line from a file. The username is
 #	required. If this is an interactive session it will prompt in
 #	a loop until a username is entered. If it is batch processing from
 #	a file it will output an error message and return to the caller.
 #
 get_user() {
 	_input=
 
 	# No need to take down user names if this is a configuration saving run.
 	[ -n "$configflag" ] && return
 
 	while : ; do
 		if [ -z "$fflag" ]; then
 			echo -n "Username: "
 			read _input
 		else
 			_input="`echo "$fileline" | cut -f1 -d:`"
 		fi
 
 		# There *must* be a username, and it must not exist. If
 		# this is an interactive session give the user an
 		# opportunity to retry.
 		#
 		if [ -z "$_input" ]; then
 			err "You must enter a username!"
 			[ -z "$fflag" ] && continue
 		fi
 		${PWCMD} usershow $_input > /dev/null 2>&1
 		if [ "$?" -eq 0 ]; then
 			err "User exists!"
 			[ -z "$fflag" ] && continue
 		fi
 		break
 	done
 	username="$_input"
 }
 
 # get_gecos
 #	Reads extra information about the user. Can be used both in interactive
 #	and batch (from file) mode.
 #
 get_gecos() {
 	_input=
 
 	# No need to take down additional user information for a configuration run.
 	[ -n "$configflag" ] && return
 
 	if [ -z "$fflag" ]; then
 		echo -n "Full name: "
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f7 -d:`"
 	fi
 	ugecos="$_input"
 }
 
 # get_shell
 #	Get the account's shell. Works in interactive and batch mode. It
 #	accepts either the base name of the shell or the full path.
 #	If an invalid shell is entered it will simply use the default shell.
 #
 get_shell() {
 	_input=
 	_fullpath=
 	ushell="$defaultshell"
 
 	# Make sure the current value of the shell is a valid one
 	if [ -z "$Sflag" ]; then
 		if ! shell_exists $ushell ; then
 			info "Using default shell ${defaultshell}."
 			ushell="$defaultshell"
 		fi
 	fi
 
 	if [ -z "$fflag" ]; then
 		echo -n "Shell ($shells) [`basename $ushell`]: "
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f9 -d:`"
 	fi
 	if [ -n "$_input" ]; then
 		if [ -n "$Sflag" ]; then
 			ushell="$_input"
 		else
 			_fullpath=`fullpath_from_shell $_input`
 			if [ -n "$_fullpath" ]; then
 				ushell="$_fullpath"
 			else
 				err "Invalid shell ($_input) for user $username."
 				info "Using default shell ${defaultshell}."
 				ushell="$defaultshell"
 			fi
 		fi
 	fi
 }
 
 # get_homedir
 #	Reads the account's home directory. Used both with interactive input
 #	and batch input.
 #
 get_homedir() {
 	_input=
 	if [ -z "$fflag" ]; then
 		echo -n "Home directory [${homeprefix}/${username}]: "
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f8 -d:`"
 	fi
 
 	if [ -n "$_input" ]; then
 		uhome="$_input"
 		# if this is a configuration run, then user input is the home
 		# directory prefix. Otherwise it is understood to
 		# be $prefix/$user
 		#
 		[ -z "$configflag" ] && homeprefix="`dirname $uhome`" || homeprefix="$uhome"
 	else
 		uhome="${homeprefix}/${username}"
 	fi
 }
 
 # get_homeperm
 #	Reads the account's home directory permissions.
 #
 get_homeperm() {
 	uhomeperm=$defaultHomePerm
 	_input=
 	_prompt=
 
 	if [ -n "$uhomeperm" ]; then
 		_prompt="Home directory permissions [${uhomeperm}]: "
 	else
 		_prompt="Home directory permissions (Leave empty for default): "
 	fi
 	if [ -z "$fflag" ]; then
 		echo -n "$_prompt"
 		read _input
 	fi
 
 	if [ -n "$_input" ]; then
 		uhomeperm="$_input"
 	fi
 }
 
 # get_uid
 #	Reads a numeric userid in an interactive or batch session. Automatically
 #	allocates one if it is not specified.
 #
 get_uid() {
 	uuid=${uidstart}
 	_input=
 	_prompt=
 
 	if [ -n "$uuid" ]; then
 		uuid=`get_nextuid $uuid`
 		_prompt="Uid [$uuid]: "
 	else
 		_prompt="Uid (Leave empty for default): "
 	fi
 	if [ -z "$fflag" ]; then
 		echo -n "$_prompt"
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f2 -d:`"
 	fi
 
 	[ -n "$_input" ] && uuid=$_input
 	uuid=`get_nextuid $uuid`
 	uidstart=$uuid
 }
 
 # get_class
 #	Reads login class of account. Can be used in interactive or batch mode.
 #
 get_class() {
 	uclass="$defaultclass"
 	_input=
 	_class=${uclass:-"default"}
 
 	if [ -z "$fflag" ]; then
 		echo -n "Login class [$_class]: "
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f4 -d:`"
 	fi
 
 	[ -n "$_input" ] && uclass="$_input"
 }
 
 # get_logingroup
 #	Reads user's login group. Can be used in both interactive and batch
 #	modes. The specified value can be a group name or its numeric id.
 #	This routine leaves the field blank if nothing is provided and
 #	a default login group has not been set. The pw(8) command
 #	will then provide a login group with the same name as the username.
 #
 get_logingroup() {
 	ulogingroup="$defaultLgroup"
 	_input=
 
 	if [ -z "$fflag" ]; then
 		echo -n "Login group [${ulogingroup:-$username}]: "
 		read _input
 	else
 		_input="`echo "$fileline" | cut -f3 -d:`"
 	fi
 
 	# Pw(8) will use the username as login group if it's left empty
 	[ -n "$_input" ] && ulogingroup="$_input"
 }
 
 # get_groups
 #	Read additional groups for the user. It can be used in both interactive
 #	and batch modes.
 #
 get_groups() {
 	ugroups="$defaultgroups"
 	_input=
 	_group=${ulogingroup:-"${username}"}
 
 	if [ -z "$configflag" ]; then
 		[ -z "$fflag" ] && echo -n "Login group is $_group. Invite $username"
 		[ -z "$fflag" ] && echo -n " into other groups? [$ugroups]: "
 	else
 		[ -z "$fflag" ] && echo -n "Enter additional groups [$ugroups]: "
 	fi
 	read _input
 
 	[ -n "$_input" ] && ugroups="$_input"
 }
 
 # get_expire_dates
 #	Read expiry information for the account and also for the password. This
 #	routine is used only from batch processing mode.
 #
 get_expire_dates() {
 	upwexpire="`echo "$fileline" | cut -f5 -d:`"
 	uexpire="`echo "$fileline" | cut -f6 -d:`"
 }
 
 # get_password
 #	Read the password in batch processing mode. The password field matters
 #	only when the password type is "yes" or "random". If the field is empty and the
 #	password type is "yes", then it assumes the account has an empty passsword
 #	and changes the password type accordingly. If the password type is "random"
 #	and the password field is NOT empty, then it assumes the account will NOT
 #	have a random password and set passwdtype to "yes."
 #
 get_password() {
 	# We may temporarily change a password type. Make sure it's changed
 	# back to whatever it was before we process the next account.
 	#
 	[ -n "$savedpwtype" ] && {
 		passwdtype=$savedpwtype
 		savedpwtype=
 	}
 
 	# There may be a ':' in the password
 	upass=${fileline#*:*:*:*:*:*:*:*:*:}
 
 	if [ -z "$upass" ]; then
 		case $passwdtype in
 		yes)
 			# if it's empty, assume an empty password
 			passwdtype=none
 			savedpwtype=yes
 			;;
 		esac
 	else
 		case $passwdtype in
 		random)
 			passwdtype=yes
 			savedpwtype=random
 			;;
 		esac
 	fi
 }
 
 # input_from_file
 #	Reads a line of account information from standard input and
 #	adds it to the user database.
 #
 input_from_file() {
 	_field=
 
 	while read -r fileline ; do
 		case "$fileline" in
 		\#*|'')
 			;;
 		*)
 			get_user || continue
 			get_gecos
 			get_uid
 			get_logingroup
 			get_class
 			get_shell
 			get_homedir
 			get_homeperm
 			get_password
 			get_expire_dates
 			ugroups="$defaultgroups"
 
 			add_user
 			;;
 		esac
 	done
 }
 
 # input_interactive
 #	Prompts for user information interactively, and commits to
 #	the user database.
 #
 input_interactive() {
 	_disable=
 	_pass=
 	_passconfirm=
 	_random="no"
 	_emptypass="no"
 	_usepass="yes"
 	_logingroup_ok="no"
 	_groups_ok="no"
 	case $passwdtype in
 	none)
 		_emptypass="yes"
 		_usepass="yes"
 		;;
 	no)
 		_usepass="no"
 		;;
 	random)
 		_random="yes"
 		;;
 	esac
 
 	get_user
 	get_gecos
 	get_uid
 
 	# The case where group = user is handled elsewhere, so
 	# validate any other groups the user is invited to.
 	until [ "$_logingroup_ok" = yes ]; do
 		get_logingroup
 		_logingroup_ok=yes
 		if [ -n "$ulogingroup" -a "$username" != "$ulogingroup" ]; then
 			if ! ${PWCMD} show group $ulogingroup > /dev/null 2>&1; then
 				echo "Group $ulogingroup does not exist!"
 				_logingroup_ok=no
 			fi
 		fi
 	done
 	until [ "$_groups_ok" = yes ]; do
 		get_groups
 		_groups_ok=yes
 		for i in $ugroups; do
 			if [ "$username" != "$i" ]; then
 				if ! ${PWCMD} show group $i > /dev/null 2>&1; then
 					echo "Group $i does not exist!"
 					_groups_ok=no
 				fi
 			fi
 		done
 	done
 
 	get_class
 	get_shell
 	get_homedir
 	get_homeperm
 
 	while : ; do
 		echo -n "Use password-based authentication? [$_usepass]: "
 		read _input
 		[ -z "$_input" ] && _input=$_usepass
 		case $_input in
 		[Nn][Oo]|[Nn])
 			passwdtype="no"
 			;;
 		[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 			while : ; do
 				echo -n "Use an empty password? (yes/no) [$_emptypass]: "
 				read _input
 				[ -n "$_input" ] && _emptypass=$_input
 				case $_emptypass in
 				[Nn][Oo]|[Nn])
 					echo -n "Use a random password? (yes/no) [$_random]: "
 					read _input
 					[ -n "$_input" ] && _random="$_input"
 					case $_random in
 					[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 						passwdtype="random"
 						break
 						;;
 					esac
 					passwdtype="yes"
 					[ -n "$configflag" ] && break
 					trap 'stty echo; exit' 0 1 2 3 15
 					stty -echo
 					echo -n "Enter password: "
-					read -r upass
+					IFS= read -r upass
 					echo''
 					echo -n "Enter password again: "
-					read -r _passconfirm
+					IFS= read -r _passconfirm
 					echo ''
 					stty echo
 					# if user entered a blank password
 					# explicitly ask again.
 					[ -z "$upass" -a -z "$_passconfirm" ] \
 					    && continue
 					;;
 				[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 					passwdtype="none"
 					break;
 					;;
 				*)
 					# invalid answer; repeat the loop
 					continue
 					;;
 				esac
 				if [ "$upass" != "$_passconfirm" ]; then
 					echo "Passwords did not match!"
 					continue
 				fi
 				break
 			done
 			;;
 		*)
 			# invalid answer; repeat loop
 			continue
 			;;
 		esac
 		break;
 	done
 	_disable=${disableflag:-"no"}
 	while : ; do
 		echo -n "Lock out the account after creation? [$_disable]: "
 		read _input
 		[ -z "$_input" ] && _input=$_disable
 		case $_input in
 		[Nn][Oo]|[Nn])
 			disableflag=
 			;;
 		[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 			disableflag=yes
 			;;
 		*)
 			# invalid answer; repeat loop
 			continue
 			;;
 		esac
 		break
 	done
 	
 	# Display the information we have so far and prompt to
 	# commit it.
 	#
 	_disable=${disableflag:-"no"}
 	[ -z "$configflag" ] && printf "%-10s : %s\n" Username $username
 	case $passwdtype in
 	yes)
 		_pass='*****'
 		;;
 	no)
 		_pass='<disabled>'
 		;;
 	none)
 		_pass='<blank>'
 		;;
 	random)
 		_pass='<random>'
 		;;
 	esac
 	[ -z "$configflag" ] && printf "%-10s : %s\n" "Password" "$_pass"
 	[ -n "$configflag" ] && printf "%-10s : %s\n" "Pass Type" "$passwdtype"
 	[ -z "$configflag" ] && printf "%-10s : %s\n" "Full Name" "$ugecos"
 	[ -z "$configflag" ] && printf "%-10s : %s\n" "Uid" "$uuid"
 	printf "%-10s : %s\n" "Class" "$uclass"
 	printf "%-10s : %s %s\n" "Groups" "${ulogingroup:-$username}" "$ugroups"
 	printf "%-10s : %s\n" "Home" "$uhome"
 	printf "%-10s : %s\n" "Home Mode" "$uhomeperm"
 	printf "%-10s : %s\n" "Shell" "$ushell"
 	printf "%-10s : %s\n" "Locked" "$_disable"
 	while : ; do
 		echo -n "OK? (yes/no): "
 		read _input
 		case $_input in
 		[Nn][Oo]|[Nn])
 			return 1
 			;;
 		[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 			add_user
 			;;
 		*)
 			continue
 			;;
 		esac
 		break
 	done
 	return 0
 }
 
 #### END SUBROUTINE DEFINITION ####
 
 THISCMD=`/usr/bin/basename $0`
 DEFAULTSHELL=/bin/sh
 ADDUSERCONF="${ADDUSERCONF:-/etc/adduser.conf}"
 PWCMD="${PWCMD:-/usr/sbin/pw}"
 MAILCMD="${MAILCMD:-mail}"
 ETCSHELLS="${ETCSHELLS:-/etc/shells}"
 NOHOME="/nonexistent"
 NOLOGIN="nologin"
 NOLOGIN_PATH="/usr/sbin/nologin"
 GREPCMD="/usr/bin/grep"
 DATECMD="/bin/date"
 
 # Set default values
 #
 username=
 uuid=
 uidstart=
 ugecos=
 ulogingroup=
 uclass=
 uhome=
 uhomeperm=
 upass=
 ushell=
 udotdir=/usr/share/skel
 ugroups=
 uexpire=
 upwexpire=
 shells="`valid_shells`"
 passwdtype="yes"
 msgfile=/etc/adduser.msg
 msgflag=
 quietflag=
 configflag=
 fflag=
 infile=
 disableflag=
 Dflag=
 Sflag=
 readconfig="yes"
 homeprefix="/home"
 randompass=
 fileline=
 savedpwtype=
 defaultclass=
 defaultLgroup=
 defaultgroups=
 defaultshell="${DEFAULTSHELL}"
 defaultHomePerm=
 
 # Make sure the user running this program is root. This isn't a security
 # measure as much as it is a useful method of reminding the user to
 # 'su -' before he/she wastes time entering data that won't be saved.
 #
 procowner=${procowner:-`/usr/bin/id -u`}
 if [ "$procowner" != "0" ]; then
 	err 'you must be the super-user (uid 0) to use this utility.'
 	exit 1
 fi
 
 # Override from our conf file
 # Quickly go through the commandline line to see if we should read
 # from our configuration file. The actual parsing of the commandline
 # arguments happens after we read in our configuration file (commandline
 # should override configuration file).
 #
 for _i in $* ; do
 	if [ "$_i" = "-N" ]; then
 		readconfig=
 		break;
 	fi
 done
 if [ -n "$readconfig" ]; then
 	# On a long-lived system, the first time this script is run it
 	# will barf upon reading the configuration file for its perl predecessor.
 	if ( . ${ADDUSERCONF} > /dev/null 2>&1 ); then
 		[ -r ${ADDUSERCONF} ] && . ${ADDUSERCONF} > /dev/null 2>&1
 	fi
 fi 
 
 # Process command-line options
 #
 for _switch ; do
 	case $_switch in
 	-L)
 		defaultclass="$2"
 		shift; shift
 		;;
 	-C)
 		configflag=yes
 		shift
 		;;
 	-D)
 		Dflag=yes
 		shift
 		;;
 	-E)
 		disableflag=yes
 		shift
 		;;
 	-k)
 		udotdir="$2"
 		shift; shift
 		;;
 	-f)
 		[ "$2" != "-" ] && infile="$2"
 		fflag=yes
 		shift; shift
 		;;
 	-g)
 		defaultLgroup="$2"
 		shift; shift
 		;;
 	-G)
 		defaultgroups="$2"
 		shift; shift
 		;;
 	-h)
 		show_usage
 		exit 0
 		;;
 	-d)
 		homeprefix="$2"
 		shift; shift
 		;;
 	-m)
 		case "$2" in
 		[Nn][Oo])
 			msgflag=
 			;;
 		*)
 			msgflag=yes
 			msgfile="$2"
 			;;
 		esac
 		shift; shift
 		;;
 	-M)
 		defaultHomePerm=$2
 		shift; shift
 		;;
 	-N)
 		readconfig=
 		shift
 		;;
 	-w)
 		case "$2" in
 		no|none|random|yes)
 			passwdtype=$2
 			;;
 		*)
 			show_usage
 			exit 1
 			;;
 		esac
 		shift; shift
 		;;
 	-q)
 		quietflag=yes
 		shift
 		;;
 	-s)
 		defaultshell="`fullpath_from_shell $2`"
 		shift; shift
 		;;
 	-S)
 		Sflag=yes
 		shift
 		;;
 	-u)
 		uidstart=$2
 		shift; shift
 		;;
 	esac
 done
 
 # If the -f switch was used, get input from a file. Otherwise,
 # this is an interactive session.
 #
 if [ -n "$fflag" ]; then
 	if [ -z "$infile" ]; then
 		input_from_file
 	elif [ -n "$infile" ]; then
 		if [ -r "$infile" ]; then
 			input_from_file < $infile
 		else
 			err "File ($infile) is unreadable or does not exist."
 		fi
 	fi
 else
 	input_interactive
 	while : ; do
 		if [ -z "$configflag" ]; then
 			echo -n "Add another user? (yes/no): "
 		else
 			echo -n "Re-edit the default configuration? (yes/no): "
 		fi
 		read _input
 		case $_input in
 		[Yy][Ee][Ss]|[Yy][Ee]|[Yy])
 			uidstart=`get_nextuid $uidstart`
 			input_interactive
 			continue
 			;;
 		[Nn][Oo]|[Nn])
 			echo "Goodbye!"
 			;;
 		*)
 			continue
 			;;
 		esac
 		break
 	done
 fi