From 1839128ad1a2c14b06cd83acde07448d396b5aba Mon Sep 17 00:00:00 2001
From: KasuganoSoras <kasuganosora@tcotp.cn>
Date: Wed, 10 Oct 2018 02:12:21 +0800
Subject: [PATCH] =?UTF-8?q?[+]=20=E4=BF=AE=E5=A4=8D=E6=89=8B=E6=BB=91bug?=
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修复了手滑写错的bug
增加了 example 的注释
---
 example.php         | 7 ++++++-
 libvirt/libvirt.php | 7 +++++--
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/example.php b/example.php
index 7a06d8a..fd5471f 100644
--- a/example.php
+++ b/example.php
@@ -1,7 +1,12 @@
 <?php
 Header("Content-type: text/plain");
+// Include Libvirt libraries
 include("libvirt/libvirt.php");
+// Instantiation Libvirt
 $Libvirt = new Libvirt();
+// Connect to 192.168.3.181:22 and set libvirt root at /data/libvirt/
 $Libvirt->setHost("192.168.3.181", 22, "/data/libvirt/");
+// Use the username 'root' and the password '123456' login to server.
 $Libvirt->connect("root", "123456");
-print_r($Libvirt->dumpxml("centos"));
\ No newline at end of file
+// Print the virtual machine centos's config file.
+echo $Libvirt->dumpxml("centos");
\ No newline at end of file
diff --git a/libvirt/libvirt.php b/libvirt/libvirt.php
index fa3f165..f164778 100644
--- a/libvirt/libvirt.php
+++ b/libvirt/libvirt.php
@@ -427,9 +427,12 @@ class Libvirt {
 	 *	@param $newMac	新的网卡 MAC
 	 *
 	 */
-	public function changeMac($server, $newMac) {
+	public function changeMac($server, $newMac = "") {
 		$data = $this->dumpxml($server);
-		$data = preg_replace("/address='([A-Za-z0-9\:]+)'/", "address='" . $Libvirt->randomMac() . "'", $data);
+		if($newMac == "") {
+			$newMac = $this->randomMac();
+		}
+		$data = preg_replace("/address='([A-Za-z0-9\:]+)'/", "address='{$newMac}'", $data);
 		@file_put_contents(__DIR__ . "/{$server}.xml", $data);
 		$this->uploadFile(__DIR__ . "/{$server}.xml", $this->libpath . "/{$server}.xml");
 		@unlink(__DIR__ . "/{$server}.xml");