xref: /dragonfly/tools/pw-update.sh (revision 5ca0a96d) 
1#!/bin/sh
2#
3# Copyright (c) 2020 The DragonFly Project.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9#
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
14#    the documentation and/or other materials provided with the
15#    distribution.
16# 3. Neither the name of The DragonFly Project nor the names of its
17#    contributors may be used to endorse or promote products derived
18#    from this software without specific, prior written permission.
19#
20# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23# FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
24# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25# INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31# SUCH DAMAGE.
32#
33
34# Exit if any untested command fails in non-interactive mode
35set -e
36# Exit when an undefined variable is referenced
37set -u
38
39# usage: add_users <etcdir> <master.passwd> <group>
40#
41# Add new users and groups in <etcdir> according to the given <master.passwd>
42# and <group> files.
43#
44# NOTE: Existing users and groups are not modified.
45#
46# NOTE: There is circular dependence: 'groupadd' requires the members
47#       already exist, while 'useradd' requires the group exists.
48#       So first assign new users to the 'nogroup' group, and then make
49#       adjustments after group creation.
50#
51add_users() {
52	local etcdir="$1"
53	local fpasswd="$2"
54	local fgroup="$3"
55	local _name _pw _uid _gid _gids item
56	local _class _change _expire _gecos _home _shell _members
57
58	echo "===> Adding new users ..."
59	_gids=""
60	while IFS=':' read -r _name _pw _uid _gid _class \
61			_change _expire _gecos _home _shell; do
62		case ${_name} in
63		'' | \#*) continue ;;
64		esac
65		if pw -V ${etcdir} usershow ${_name} -q >/dev/null; then
66			continue
67		fi
68		echo "   * ${_name}: ${_uid}, ${_gid}, ${_gecos}, ${_home}, ${_shell}"
69		# Assign to the 'nogroup' group, and then adjust later.
70		pw -V ${etcdir} useradd ${_name} \
71			-u ${_uid} \
72			-g nogroup \
73			-d ${_home} \
74			-s ${_shell} \
75			-L "${_class}" \
76			-c "${_gecos}"
77		_gids="${_gids} ${_name}:${_gid}"
78	done < ${fpasswd}
79
80	echo "===> Adding new groups ..."
81	while IFS=':' read -r _name _pw _gid _members; do
82		case ${_name} in
83		'' | \#*) continue ;;
84		esac
85		if pw -V ${etcdir} groupshow ${_name} -q >/dev/null; then
86			continue
87		fi
88		echo "   * ${_name}: ${_gid}, ${_members}"
89		pw -V ${etcdir} groupadd ${_name} -g ${_gid} -M "${_members}"
90	done < ${fgroup}
91
92	echo "===> Adjusting the group of new users ..."
93	for item in ${_gids}; do
94		_name=${item%:*}
95		_gid=${item#*:}
96		echo "   * ${_name}: ${_gid}"
97		pw -V ${etcdir} usermod ${_name} -g ${_gid}
98	done
99}
100
101usage() {
102	cat > /dev/stderr << _EOF_
103Add new users and groups.
104
105Usage: ${0##*/} -d <etc-dir> -g <group-file> -p <master.passwd-file>
106
107_EOF_
108
109	exit 1
110}
111
112ETC_DIR=
113GROUP_FILE=
114PASSWD_FILE=
115
116while getopts :d:g:hp: opt; do
117	case ${opt} in
118	d)
119		ETC_DIR=${OPTARG}
120		;;
121	g)
122		GROUP_FILE=${OPTARG}
123		;;
124	p)
125		PASSWD_FILE=${OPTARG}
126		;;
127	h | \? | :)
128		usage
129		;;
130	esac
131done
132
133shift $((OPTIND - 1))
134[ $# -eq 0 ] || usage
135[ -n "${ETC_DIR}" ] || usage
136[ -n "${GROUP_FILE}" ] || usage
137[ -n "${PASSWD_FILE}" ] || usage
138
139add_users "${ETC_DIR}" "${PASSWD_FILE}" "${GROUP_FILE}"
140
141echo "Update password databases ..."
142pwd_mkdb -p -d "${ETC_DIR}" "${ETC_DIR}/master.passwd"
143