/usr/lib/fai/dhclient-perl is in fai-nfsroot 5.3.6ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#*********************************************************************
#
# dhclient-perl -- perl script that prints out DHCP data
#
# This script is part of FAI (Fully Automatic Installation)
# Copyright (c) 2000-2006 by Thomas Lange, Universitaet zu Koeln
#
#*********************************************************************
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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; see the file COPYING. If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
# MA 02111-1307, USA.
#*********************************************************************
# TODO: extract search info from DOMAIN
# map dhcp names to bootp names
%names = qw/
ip_address IPADDR
host_name HOSTNAME
network_number NETWORK
subnet_mask NETMASK
broadcast_address BROADCAST
routers GATEWAYS
domain_name DOMAIN
domain_name_servers DNSSRVS
server_name SERVER
time_servers TIMESRVS
ntp_servers NTPSRVS
nis_domain YPDOMAIN
nis_servers YPSRVR
fai_config_src FAI_CONFIG_SRC
fai_action FAI_ACTION
fai_flags FAI_FLAGS
option_170 FAI_CONFIG_SRC
option_171 FAI_ACTION
option_172 FAI_FLAGS
option_173 reserved173
option_174 reserved174
option_175 reserved175
/;
# these lists should also be listed as single items
@list = qw/domain_name_servers routers time_servers ntp_servers nis_servers/;
%listitem = map { $_ => 1 } @list;
# use short host name
$ENV{new_host_name} = (split '\.',$ENV{new_host_name})[0];
foreach $name (sort keys %names) {
$dhcpname="new_$name";
if ($ENV{$dhcpname}) {
print "$names{$name}='$ENV{$dhcpname}'\n";
items($name) if $listitem{$name};
}
}
exit 0;
# - - - - - - - - - - - - - - - - - - - - -
sub items {
my $key = shift;
my $i = 1;
foreach (split /\s+/,$ENV{"new_$key"}){
print "$names{$key}_$i='$_'\n";
$i++;
}
}
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