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110 lines
3.3 KiB
PHP
Executable File
110 lines
3.3 KiB
PHP
Executable File
<?php
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/*
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external config loader
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Copyright (C) 2010 Scott Ullrich
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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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require("globals.inc");
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require("functions.inc");
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function get_boot_disk() {
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global $g;
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$disk = `/sbin/mount | /usr/bin/grep "on / " | /usr/bin/cut -d'/' -f3 | /usr/bin/cut -d' ' -f1`;
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return $disk;
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}
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function get_disks() {
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global $g;
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$disks_array = array();
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$disks = `/sbin/sysctl kern.disks | cut -d':' -f2`;
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$disks_s = explode(" ", $disks);
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foreach($disks_s as $disk)
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if(trim($disk))
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$disks_array[] = $disk;
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return $disks_array;
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}
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// Probes all disks looking for config.xml
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function find_config_xml() {
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global $g;
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$disks = get_disks();
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$boot_disk = get_boot_disk();
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exec("mkdir -p /tmp/mnt/cf");
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$found_config = false;
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foreach($disks as $disk) {
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echo " $disk";
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// First try msdos fs
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$result = exec("/sbin/mount -t msdos /dev/{$disk} /tmp/mnt/cf 2>/dev/null");
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// Next try regular fs (ufs)
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if(!$result)
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$result = exec("/sbin/mount /dev/{$disk} /tmp/mnt/cf 2>/dev/null");
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if($result == "0") {
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// Item was mounted - look for config.xml file
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$config_location = discover_config($disk);
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if($config_location) {
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if(test_config($config_location)) {
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// We have a valid configuration. Install it.
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echo " -> found ";
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backup_config();
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restore_backup($config_location);
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exec("/sbin/unount /tmp/mnt/cf");
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break;
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}
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}
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}
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}
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}
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function discover_config($mountpoint) {
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global $g;
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$locations_to_check = array("/", "/conf", "/conf.default", "/config");
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foreach($locations_to_check as $ltc) {
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$tocheck = "{$mountpoint}{$ltc}/config.xml";
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if(file_exists($tocheck))
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return $tocheck;
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}
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return "";
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}
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function test_config($file_location) {
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global $g;
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// config.xml was found. ensure it is sound.
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$root_obj = $g['xml_rootobj'];
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$xml_file_head = trim(`/bin/cat {$file_location} | /usr/bin/head -n1`);
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if($xml_file_head == $root_obj) {
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// Now parse config to make sure
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$config_status = config_validate($file_location);
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if($config_status)
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return true;
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}
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return false;
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}
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echo "External config loader 1.0 is now starting...";
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find_config_xml();
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echo "\n";
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?>
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