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<?php
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/* $Id$ */
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/*
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services_dhcp_edit.php
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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##|+PRIV
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##|*IDENT=page-services-dhcpserver-editstaticmapping
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##|*NAME=Services: DHCP Server : Edit static mapping page
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##|*DESCR=Allow access to the 'Services: DHCP Server : Edit static mapping' page.
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##|*MATCH=services_dhcp_edit.php*
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##|-PRIV
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function staticmapcmp($a, $b) {
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return ipcmp($a['ipaddr'], $b['ipaddr']);
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}
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function staticmaps_sort($ifgui) {
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global $g, $config;
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usort($config['dhcpd'][$ifgui]['staticmap'], "staticmapcmp");
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}
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require_once('globals.inc');
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if(!$g['services_dhcp_server_enable']) {
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Header("Location: /");
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exit;
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}
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require("guiconfig.inc");
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$if = $_GET['if'];
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if ($_POST['if'])
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$if = $_POST['if'];
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if (!$if) {
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header("Location: services_dhcp.php");
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exit;
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}
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if (!is_array($config['dhcpd'][$if]['staticmap'])) {
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$config['dhcpd'][$if]['staticmap'] = array();
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}
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$static_map_enabled=isset($config['dhcpd'][$if]['staticarp']);
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staticmaps_sort($if);
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$a_maps = &$config['dhcpd'][$if]['staticmap'];
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$ifcfgip = get_interface_ip($if);
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$ifcfgsn = get_interface_subnet($if);
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$ifcfgdescr = convert_friendly_interface_to_friendly_descr($if);
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$id = $_GET['id'];
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if (isset($_POST['id']))
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$id = $_POST['id'];
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if (isset($id) && $a_maps[$id]) {
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$pconfig['mac'] = $a_maps[$id]['mac'];
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$pconfig['hostname'] = $a_maps[$id]['hostname'];
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$pconfig['ipaddr'] = $a_maps[$id]['ipaddr'];
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$pconfig['descr'] = $a_maps[$id]['descr'];
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} else {
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$pconfig['mac'] = $_GET['mac'];
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$pconfig['hostname'] = $_GET['hostname'];
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$pconfig['descr'] = $_GET['descr'];
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}
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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/* input validation */
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$reqdfields = explode(" ", "mac");
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$reqdfieldsn = explode(",", "MAC address");
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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/* normalize MAC addresses - lowercase and convert Windows-ized hyphenated MACs to colon delimited */
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$_POST['mac'] = strtolower(str_replace("-", ":", $_POST['mac']));
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if (($_POST['host'] && !is_hostname($_POST['host']))) {
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$input_errors[] = "A valid host name must be specified.";
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}
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if (($_POST['ipaddr'] && !is_ipaddr($_POST['ipaddr']))) {
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$input_errors[] = "A valid IP address must be specified.";
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}
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if (($_POST['mac'] && !is_macaddr($_POST['mac']))) {
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$input_errors[] = "A valid MAC address must be specified.";
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}
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if($static_map_enabled && !$_POST['ipaddr']) {
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$input_errors[] = "Static map is enabled. You must specify an IP address.";
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}
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/* check for overlaps */
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foreach ($a_maps as $mapent) {
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if (isset($id) && ($a_maps[$id]) && ($a_maps[$id] === $mapent))
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continue;
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if ((($mapent['hostname'] == $_POST['hostname']) && $mapent['hostname']) || ($mapent['mac'] == $_POST['mac'])) {
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$input_errors[] = "This Hostname, IP or MAC address already exists.";
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break;
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}
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}
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/* make sure it's not within the dynamic subnet */
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if ($_POST['ipaddr']) {
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$dynsubnet_start = ip2long($config['dhcpd'][$if]['range']['from']);
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$dynsubnet_end = ip2long($config['dhcpd'][$if]['range']['to']);
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$lansubnet_start = (ip2long($ifcfgip) & gen_subnet_mask_long($ifcfgsn));
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$lansubnet_end = (ip2long($ifcfgip) | (~gen_subnet_mask_long($ifcfgsn)));
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if ((ip2long($_POST['ipaddr']) < $lansubnet_start) ||
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(ip2long($_POST['ipaddr']) > $lansubnet_end)) {
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$input_errors[] = "The IP address must lie in the {$ifcfgdescr} subnet.";
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}
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}
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if (!$input_errors) {
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$mapent = array();
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$mapent['mac'] = $_POST['mac'];
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$mapent['ipaddr'] = $_POST['ipaddr'];
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$mapent['hostname'] = $_POST['hostname'];
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$mapent['descr'] = $_POST['descr'];
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staticmaps_sort($if);
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if (isset($id) && $a_maps[$id])
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$a_maps[$id] = $mapent;
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else
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$a_maps[] = $mapent;
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write_config();
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if(isset($config['dhcpd'][$if]['enable'])) {
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mark_subsystem_dirty('staticmaps');
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if (isset($config['dnsmasq']['regdhcpstatic']))
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mark_subsystem_dirty('hosts');
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}
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header("Location: services_dhcp.php?if={$if}");
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exit;
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}
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}
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$pgtitle = array("Services","DHCP","Edit static mapping");
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<form action="services_dhcp_edit.php" method="post" name="iform" id="iform">
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<table width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td colspan="2" valign="top" class="listtopic">Static DHCP Mapping</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq">MAC address</td>
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<td width="78%" class="vtable">
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<input name="mac" type="text" class="formfld unknown" id="mac" size="30" value="<?=htmlspecialchars($pconfig['mac']);?>">
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<?php
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$ip = getenv('REMOTE_ADDR');
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$mac = `/usr/sbin/arp -an | grep {$ip} | cut -d" " -f4`;
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$mac = str_replace("\n","",$mac);
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?>
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<a OnClick="document.forms[0].mac.value='<?=$mac?>';" href="#">Copy my MAC address</a>
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<br>
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<span class="vexpl">Enter a MAC address in the following format:
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xx:xx:xx:xx:xx:xx</span></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">IP address</td>
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<td width="78%" class="vtable">
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<input name="ipaddr" type="text" class="formfld unknown" id="ipaddr" size="20" value="<?=htmlspecialchars($pconfig['ipaddr']);?>">
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<br>
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If no IP address is given, one will be dynamically allocated from the pool.</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Hostname</td>
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<td width="78%" class="vtable">
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<input name="hostname" type="text" class="formfld unknown" id="hostname" size="20" value="<?=htmlspecialchars($pconfig['hostname']);?>">
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<br> <span class="vexpl">Name of the host, without domain part.</span></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell">Description</td>
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<td width="78%" class="vtable">
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<input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>">
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<br> <span class="vexpl">You may enter a description here
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for your reference (not parsed).</span></td>
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</tr>
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<tr>
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<td width="22%" valign="top"> </td>
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<td width="78%">
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<input name="Submit" type="submit" class="formbtn" value="Save"> <input class="formbtn" type="button" value="Cancel" onclick="history.back()">
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<?php if (isset($id) && $a_maps[$id]): ?>
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<input name="id" type="hidden" value="<?=$id;?>">
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<?php endif; ?>
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<input name="if" type="hidden" value="<?=$if;?>">
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</td>
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</tr>
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</table>
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</form>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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