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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: files dns
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"
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