xref: /dragonfly/etc/rc.d/nsswitch (revision ce0833857e05eba4d13f3fd8a4d049ea68c5ffa4) 
1#!/bin/sh
2#
3# Copyright (c) 1993 - 2004 The FreeBSD Project. 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 PROJECT AND CONTRIBUTORS ``AS IS'' AND
15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17# ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24# SUCH DAMAGE.
25#
26# $FreeBSD: src/etc/rc.d/nsswitch,v 1.10 2006/05/01 11:02:48 des Exp $
27#
28
29# PROVIDE: nsswitch
30# REQUIRE: FILESYSTEMS
31# BEFORE:  NETWORKING
32
33. /etc/rc.subr
34
35name="nsswitch"
36start_cmd="nsswitch_start"
37stop_cmd=":"
38
39convert_host_conf()
40{
41          host_conf=$1; shift;
42          nsswitch_conf=$1; shift;
43
44          while read line; do
45                    line=${line##[      ]}
46                    case $line in
47                    hosts|local|file)
48                              _nsswitch="${_nsswitch}${_nsswitch+ }files"
49                              ;;
50                    dns|bind)
51                              _nsswitch="${_nsswitch}${_nsswitch+ }dns"
52                              ;;
53                    nis)
54                              _nsswitch="${_nsswitch}${_nsswitch+ }nis"
55                              ;;
56                    '#'*)
57                              ;;
58                    *)
59                              printf "Warning: unrecognized line [%s]", $line \
60                                        > /dev/stderr
61                              ;;
62
63                    esac
64          done < $host_conf
65
66          echo "hosts: $_nsswitch" > $nsswitch_conf
67}
68
69generate_nsswitch_conf()
70{
71          nsswitch_conf=$1; shift;
72
73          cat >$nsswitch_conf <<EOF
74group: compat
75group_compat: nis
76hosts: files dns
77networks: files
78passwd: compat
79passwd_compat: nis
80shells: files
81services: compat
82services_compat: nis
83protocols: files
84rpc: files
85EOF
86}
87
88generate_host_conf()
89{
90          nsswitch_conf=$1; shift;
91          host_conf=$1; shift;
92
93          _cont=0
94          _sources=""
95          while read line; do
96                    line=${line##[      ]}
97                    case $line in
98                    hosts:*)
99                              ;;
100                    *)
101                              if [ $_cont -ne 1 ]; then
102                                        continue
103                              fi
104                              ;;
105                    esac
106                    if [ "${line%\\}" = "${line}\\" ]; then
107                              _cont=1
108                    fi
109                    line=${line#hosts:}
110                    line=${line%\\}
111                    line=${line%%#*}
112                    _sources="${_sources}${_sources:+ }$line"
113          done < $nsswitch_conf
114
115          echo "# Auto-generated from nsswitch.conf" > $host_conf
116          for _s in ${_sources}; do
117                    case $_s in
118                    files)
119                              echo "hosts" >> $host_conf
120                              ;;
121                    dns)
122                              echo "dns" >> $host_conf
123                              ;;
124                    nis)
125                              echo "nis" >> $host_conf
126                              ;;
127                    *=*)
128                              ;;
129                    *)
130                              printf "Warning: unrecognized source [%s]", $_s \
131                                        > /dev/stderr
132                              ;;
133                    esac
134          done
135}
136
137nsswitch_start()
138{
139          # Convert host.conf to nsswitch.conf if necessary
140          #
141          if [ -f "/etc/host.conf" -a ! -f "/etc/nsswitch.conf" ]; then
142                    echo ''
143                    echo 'Warning: /etc/host.conf is no longer used'
144                    echo '  /etc/nsswitch.conf will be created for you'
145                    convert_host_conf /etc/host.conf /etc/nsswitch.conf
146          fi
147
148          # Generate default nsswitch.conf if none exists
149          #
150          if [ ! -f "/etc/nsswitch.conf" ]; then
151                    echo 'Generating nsswitch.conf.'
152                    generate_nsswitch_conf /etc/nsswitch.conf
153          fi
154
155          # Generate host.conf for compatibility
156          #
157          if [ ! -f "/etc/host.conf" -o \
158                    "/etc/host.conf" -ot "/etc/nsswitch.conf" ]
159          then
160                    echo 'Generating host.conf.'
161                    generate_host_conf /etc/nsswitch.conf /etc/host.conf
162          fi
163
164}
165
166load_rc_config $name
167run_rc_command "$1"
168