freebsd-dev/etc/rc.d/nsswitch
Dag-Erling Smørgrav cba155c0c2 If nsswitch.conf does not exist, create it with the default settings.
The reason for doing this is that (at least some) 4.x binaries are very
unhappy if host.conf does not exist, and if we create host.conf but not
nsswitch.conf, nsswitch.conf will be created at the next reboot, so it
is better to create a correct nsswitch.conf right away.
2004-05-24 11:53:26 +00:00

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#!/bin/sh
#
# Copyright (c) 1993 - 2004 The FreeBSD Project. 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 PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
#
# $FreeBSD$
#
# PROVIDE: nsswitch
# REQUIRE: root
# BEFORE: network
# KEYWORD: FreeBSD
. /etc/rc.subr
name="nsswitch"
start_cmd="nsswitch_start"
stop_cmd=":"
convert_host_conf()
{
host_conf=$1; shift;
nsswitch_conf=$1; shift;
awk ' \
/^[:blank:]*#/ { next } \
/(hosts|local|file)/ { nsswitch[c] = "files"; c++; next } \
/(dns|bind)/ { nsswitch[c] = "dns"; c++; next } \
/nis/ { nsswitch[c] = "nis"; c++; next } \
{ printf "Warning: unrecognized line [%s]", $0 > "/dev/stderr" } \
END { \
printf "hosts: "; \
for (i in nsswitch) printf "%s ", nsswitch[i]; \
printf "\n"; \
}' < $host_conf > $nsswitch_conf
}
generate_nsswitch_conf()
{
nsswitch_conf=$1; shift;
cat >$nsswitch_conf <<EOF
group: compat
group_compat: nis
hosts: dns files
networks: files
passwd: compat
passwd_compat: nis
shells: files
EOF
}
generate_host_conf()
{
nsswitch_conf=$1; shift;
host_conf=$1; shift;
awk '
BEGIN {
xlat["files"] = "hosts";
xlat["dns"] = "bind";
xlat["nis"] = "nis";
cont = 0;
}
sub(/^[\t ]*hosts:/, "") || cont {
if (!cont)
srcs = ""
sub(/#.*/, "")
gsub(/[][]/, " & ")
cont = sub(/\\$/, "")
srcs = srcs " " $0
}
END {
print "# Auto-generated from nsswitch.conf, do not edit"
ns = split(srcs, s)
for (n = 1; n <= ns; ++n) {
if (s[n] in xlat)
print xlat[s[n]]
}
}
' <$nsswitch_conf >$host_conf
}
nsswitch_start()
{
# Convert host.conf to nsswitch.conf if necessary
#
if [ -f "/etc/host.conf" -a ! -f "/etc/nsswitch.conf" ]; then
echo ''
echo 'Warning: /etc/host.conf is no longer used'
echo ' /etc/nsswitch.conf will be created for you'
convert_host_conf /etc/host.conf /etc/nsswitch.conf
fi
# Generate default nsswitch.conf if none exists
#
if [ ! -f "/etc/nsswitch.conf" ]; then
echo 'Generating nsswitch.conf.'
generate_nsswitch_conf /etc/nsswitch.conf
fi
# Generate host.conf for compatibility
#
if [ ! -f "/etc/host.conf" ]; then
echo 'Generating host.conf.'
generate_host_conf /etc/nsswitch.conf /etc/host.conf
fi
}
load_rc_config $name
run_rc_command "$1"