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#! /bin/sh
##
## %CopyrightBegin%
##
## Copyright Ericsson AB 2009-2016. All Rights Reserved.
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
## %CopyrightEnd%
##
#
#
## run-named
##
## $0 IPAddress PortNum SubDir
##
## * Create a work directory ./SubDir, create a named.conf there.
## * Locate named and check its version.
## * Zopy zone files from `dirname $0`/SubDir to ./SubDir.
## * Start named in ./SubDir with logging to named.log there.
## * Wait for "quit" on stdin.
## * Terminate named and wait for it.
##
## Prints status lines starting with tag and colon (think mail header):
## Error: have given up, no name server started
## Running: name server is running, waiting for "quit"
## Other tags: diagnostics info
#
unset LDPATH CDPATH ENV BASH_ENV
IFS=' '
PATH=/usr/sbin:/sbin:/usr/bin:/bin
SHELL=/bin/sh
export PATH SHELL
CONF_FILE=named.conf
INC_FILE=named_inc.conf
PID_FILE=named.pid
LOG_FILE=named.log
error () {
r=$?
echo "Error: $*"
exit $r
}
# Check argument: IP address
test :"$1" != : || \
error "Empty argument 1: IP address !"
# Check argument: Port number
expr "0$2" + 0 '>' 0 '&' "0$2" + 0 '<' 65536 >/dev/null 2>&1 || \
error "Invalid argument 2: port number !"
# Check argument: Work/Zone subdir
test :"$3" != : || \
error "Empty argument 3: Work/Zone subdir!"
SRCDIR="`dirname "$0"`/$3"
test -d "$SRCDIR" || \
error "Missing zone directory $SRCDIR !"
test -f "$SRCDIR/$INC_FILE" || \
error "Missing file: $SRCDIR/$INC_FILE !"
# Locate named and check version.
# The bind-named name is used for tricking Apparmor and such
# by copying/hardlinking the real named to that name.
NAMED=named
for n in /usr/local/bin/bind-named /usr/local/bin/named \
/usr/sbin/bind-named /usr/sbin/named /usr/sbin/in.named
do
test -x "$n" && NAMED="$n" && break
done
NAMED_VER="`"$NAMED" -v 2>&1`" || \
error "Name server not found!"
NAMED_VER=`echo "$NAMED_VER" | ( read V1 V2 V3 IGNORED && \
if test :"$V1" = :'in.named'; then
echo "$V2 $V3"
else
echo "$V1 $V2"
fi
)`
case :"$NAMED_VER" in
:'BIND '8.*) NAMED_FG='-f';;
:'BIND '9.*) NAMED_FG='-g';;
:*) error "Name server version is unknown: $NAMED_VER";;
esac
# Create working directory and cd to it
mkdir "$3" >/dev/null 2>&1
cd "$3" >/dev/null 2>&1 || \
error "Can not cd: $3 !"
# Create $CONF_FILE
cat >"$CONF_FILE" <<-CONF_FILE
#
# $CONF_FILE for $NAMED_VER
# Generated by $0.
#
# Copyright: see $0.
#
logging {
category default {
default_stderr;
};
};
CONF_FILE
case :"$NAMED_VER" in
:'BIND '8.*|:'BIND '9.[012]|:'BIND '9.[012].*)
cat >>"$CONF_FILE" <<-CONF_FILE
controls {
inet 127.0.0.1 port 0 allow { !0/32; };
};
options {
pid-file "$PID_FILE";
listen-on port $2 { $1; };
recursion no;
allow-query { $1; };
};
CONF_FILE
;;
:*)
cat >>"$CONF_FILE" <<-CONF_FILE
controls {
};
options {
pid-file none;
listen-on port $2 { $1; };
recursion no;
allow-query { $1; };
};
CONF_FILE
;;
esac
cat >>"$CONF_FILE" <<-CONF_FILE
include "$INC_FILE";
CONF_FILE
# Copy all subdir files
( cd "$SRCDIR" && ls -1 ) | while read f; do
cp -fp "$SRCDIR/$f" .
done
# Start nameserver
echo "Cwd: `pwd`"
echo "Nameserver: $NAMED_VER"
echo "Port: $2"
echo "ZoneDir: $3"
echo "Command: $NAMED $NAMED_FG -c $CONF_FILE"
$NAMED $NAMED_FG -c "$CONF_FILE" >"$LOG_FILE" 2>&1 </dev/null &
NAMED_PID=$!
echo "Pid: $NAMED_PID"
trap "kill $NAMED_PID >/dev/null 2>&1; wait $NAMED_PID >/dev/null 2>&1" \
0 1 2 3 15
sleep 5 # Give name server time to load its zone files
if ps -p $NAMED_PID >/dev/null 2>&1 || ps p $NAMED_PID >/dev/null 2>&1; then
echo "Running: Enter \`\`quit'' to terminate nameserver[$NAMED_PID]..."
while read LINE; do
test :"$LINE" = :'quit' && break
done
echo "Closing: Terminating nameserver..."
else
error "$NAMED failed to start"
fi
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