nsswitch revision 135305
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: head/etc/rc.d/nsswitch 135305 2004-09-16 17:03:12Z keramida $ 27# 28 29# PROVIDE: nsswitch 30# REQUIRE: root 31# BEFORE: NETWORK 32# KEYWORD: FreeBSD 33 34. /etc/rc.subr 35 36name="nsswitch" 37start_cmd="nsswitch_start" 38stop_cmd=":" 39 40convert_host_conf() 41{ 42 host_conf=$1; shift; 43 nsswitch_conf=$1; shift; 44 awk ' \ 45 /^[:blank:]*#/ { next } \ 46 /(hosts|local|file)/ { nsswitch[c] = "files"; c++; next } \ 47 /(dns|bind)/ { nsswitch[c] = "dns"; c++; next } \ 48 /nis/ { nsswitch[c] = "nis"; c++; next } \ 49 { printf "Warning: unrecognized line [%s]", $0 > "/dev/stderr" } \ 50 END { \ 51 printf "hosts: "; \ 52 for (i in nsswitch) printf "%s ", nsswitch[i]; \ 53 printf "\n"; \ 54 }' < $host_conf > $nsswitch_conf 55} 56 57generate_nsswitch_conf() 58{ 59 nsswitch_conf=$1; shift; 60 61 cat >$nsswitch_conf <<EOF 62group: compat 63group_compat: nis 64hosts: files dns 65networks: files 66passwd: compat 67passwd_compat: nis 68shells: files 69EOF 70} 71 72generate_host_conf() 73{ 74 nsswitch_conf=$1; shift; 75 host_conf=$1; shift; 76 77 awk ' 78BEGIN { 79 xlat["files"] = "hosts"; 80 xlat["dns"] = "bind"; 81 xlat["nis"] = "nis"; 82 cont = 0; 83} 84sub(/^[\t ]*hosts:/, "") || cont { 85 if (!cont) 86 srcs = "" 87 sub(/#.*/, "") 88 gsub(/[][]/, " & ") 89 cont = sub(/\\$/, "") 90 srcs = srcs " " $0 91} 92END { 93 print "# Auto-generated from nsswitch.conf, do not edit" 94 ns = split(srcs, s) 95 for (n = 1; n <= ns; ++n) { 96 if (s[n] in xlat) 97 print xlat[s[n]] 98 } 99} 100' <$nsswitch_conf >$host_conf 101} 102 103nsswitch_start() 104{ 105 # Convert host.conf to nsswitch.conf if necessary 106 # 107 if [ -f "/etc/host.conf" -a ! -f "/etc/nsswitch.conf" ]; then 108 echo '' 109 echo 'Warning: /etc/host.conf is no longer used' 110 echo ' /etc/nsswitch.conf will be created for you' 111 convert_host_conf /etc/host.conf /etc/nsswitch.conf 112 fi 113 114 # Generate default nsswitch.conf if none exists 115 # 116 if [ ! -f "/etc/nsswitch.conf" ]; then 117 echo 'Generating nsswitch.conf.' 118 generate_nsswitch_conf /etc/nsswitch.conf 119 fi 120 121 # Generate host.conf for compatibility 122 # 123 if [ ! -f "/etc/host.conf" ]; then 124 echo 'Generating host.conf.' 125 generate_host_conf /etc/nsswitch.conf /etc/host.conf 126 fi 127 128} 129 130load_rc_config $name 131run_rc_command "$1" 132