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#!/bin/sh
# Copyright (C) 2011-2025 Free Software Foundation, Inc.
#
# This file is part of GNU Inetutils.
#
# GNU Inetutils is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
#
# GNU Inetutils is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see `http://www.gnu.org/licenses/'.
# Prerequisites:
#
# * Shell: SVR3 Bourne shell, or newer.
#
# * id(1), mktemp(1), uname(1).
. ./tools.sh
hostname=${hostname:-../src/hostname$EXEEXT}
if [ $VERBOSE ]; then
set -x
$hostname --version
fi
errno=0
posttest () {
test -n "$NAMEFILE" && test -r "$NAMEFILE" && rm "$NAMEFILE"
}
our_hostname=`$hostname` || errno=$?
test $errno -eq 0 || echo "Failed to get hostname." >&2
test $errno -eq 0 || exit $errno
sys_hostname=`hostname` || errno=$?
if test $errno -ne 0; then
echo "System hostname failed (rc $errno out $sys_hostname)." >&2
errno=0
sys_hostname=`uname -n` || errno=$?
test $errno -eq 0 || echo "Failed uname (rc $errno out $sys_hostname)." >&2
test $errno -eq 0 || exit $errno
fi
if test "$our_hostname" != "$sys_hostname"; then
echo "Hostname mismatch $our_hostname != $sys_hostname"
exit 1
fi
if test `func_id_uid` != 0; then
echo "hostname: skipping tests to set host name"
else
$need_mktemp || exit_no_mktemp
# Only run this if hostname succeeded...
if test $errno -eq 0; then
$hostname `$hostname` || errno=$?
test $errno -eq 0 || echo "Failed to set hostname." >&2
test $errno -eq 0 || exit $errno
NAMEFILE=`$MKTEMP tmp.XXXXXXXXXX` || errno=$?
test $errno -eq 0 || echo >&2 'Cannot create test file.'
test $errno -eq 0 || exit $errno
trap posttest 0 1 2 3 15
SAVEDNAME=`$hostname` || errno=$?
echo $SAVEDNAME > $NAMEFILE
if test $errno -eq 0 && test -s $NAMEFILE; then
$hostname -F $NAMEFILE || errno=$?
test $errno -eq 0 || echo >&2 'Failed to set hostname.'
# Attempt to rescue name using the first method.
test $errno -eq 0 || $hostname "$SAVEDNAME" || errno=$?
fi
fi
fi
exit $errno
|
