#!/bin/bash
# $Header: /home/cvsd/magellan-cvs/magellan-src/mage/usr/lib/mage/museradd,v 1.4 2005-06-01 15:48:43 niro Exp $

# include all needed files
[ -f /etc/mage.rc.global ] && source /etc/mage.rc.global
[ -f ${MAGERC} ] && source ${MAGERC}
[ -f ${MLIBDIR}/mage4.functions.sh ] && source ${MLIBDIR}/mage4.functions.sh

print_usage()
{
	echo "$(basename $0 .sh) adds users to /etc/passwd."
	echo " USAGE:    $(basename $0 .sh) -o OPTIONS USER_NAME .."
	echo
	echo " OPTIONS:  -o \"OPTS\"all options from /usr/sbin/useradd can be used."
	echo
	echo " Examples:"
	echo "    $(basename $0 .sh) -o \"-u 22 -g sshd -d /var/empty -s /bin/false\" sshd"
	echo
}

busybox_fix_user_opts()
{
	local i
	local FIXED_USER_OPTS

	for i in $*
	do
		case $1 in
			-d) shift; FIXED_USER_OPTS+=" -h $1" ;;
			-g) shift; FIXED_USER_OPTS+=" -G $1" ;;
			-G) shift; shift; continue;; # will be parsed through fix_group_opts
			-u) shift; [[ $1 -lt 100 ]] && FIXED_USER_OPTS+=" -S"; FIXED_USER_OPTS+=" -u $1" ;;
			-r) FIXED_USER_OPTS+=" -S" ;;
			-M) FIXED_USER_OPTS+=" -H" ;;
			*) FIXED_USER_OPTS+=" $1" ;;
		esac
		shift
	done

	echo "${FIXED_USER_OPTS}"
}

busybox_fix_group_opts()
{
	local i
	local FIXED_GROUP_OPTS

	for i in $*
	do
		case $1 in
			-G) shift; FIXED_GROUP_OPTS+="$(echo $1 | sed 's:,:\ :g')" ;;
		esac
		shift
	done

	echo "${FIXED_GROUP_OPTS}"
}

fix_usermod_opts()
{
	local i
	local FIXED_USERMOD_OPTS

	for i in $*
	do
		case $1 in
			-M) continue ;; # usermod does not support the -M switch
			*) FIXED_USERMOD_OPTS+=" $1" ;;
		esac
		shift
	done

	echo "${FIXED_USERMOD_OPTS}"
}

if [[ ! -z ${MROOT} ]] && [[ ${MROOT} != / ]]
then
	chroot="chroot ${MROOT} "
else
	chroot=""
fi

while getopts "o:-" opt ; do
	case "${opt}" in
		o)
			USER_OPTS="${OPTARG}"
			;;

		-) break
			;;

		*)
			print_usage
			exit 1
			;;
	esac
done
shift $(($OPTIND - 1))

#exit if $1 is zero
if [ -z "$1" ]
then
	print_usage
	exit 1
fi

USER_TO_ADD="$1"

# busybox support needed?
if need_busybox_support adduser
then
	echo -n "     Adding user '${USER_TO_ADD}'"
	[[ ! -z ${chroot} ]] && echo -n " into MROOT='${MROOT}'"
	echo " ..."
	${chroot} adduser -S -D $(busybox_fix_user_opts ${USER_OPTS}) "${USER_TO_ADD}"
	for grp in $(busybox_fix_group_opts ${USER_OPTS})
	do
		${chroot} addgroup "${USER_TO_ADD}" "${grp}"
	done

# normal systems
else
	# get the info
	my_user="$(${chroot} getent passwd ${USER_TO_ADD})"

	if [ -z "${my_user}" ]
	then
		echo -n "     Adding user '${USER_TO_ADD}'"
		[[ ! -z ${chroot} ]] && echo -n " into MROOT='${MROOT}'"
		echo " ..."
		${chroot} useradd -r ${USER_OPTS} "${USER_TO_ADD}"
	else
		echo -n "     Modifing user '${USER_TO_ADD}'"
		[[ ! -z ${chroot} ]] && echo -n " in MROOT='${MROOT}'"
		echo " ..."
		${chroot} usermod $(fix_usermod_opts ${USER_OPTS}) "${USER_TO_ADD}"
	fi
fi