From 89b77265644c1c43bd404fa8f097feee9ccacafc Mon Sep 17 00:00:00 2001
From: daniceexi <daniceexi@8638fb3e-16cb-4fca-ae20-7b5d299a9bcd>
Date: Mon, 19 Apr 2010 12:20:47 +0000
Subject: [PATCH] add the localhost entry automatically when running the
 makehosts -n

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@5810 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
---
 xCAT-server/lib/xcat/plugins/hosts.pm | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/xCAT-server/lib/xcat/plugins/hosts.pm b/xCAT-server/lib/xcat/plugins/hosts.pm
index 05f7f7ada..5e6e2fd4f 100644
--- a/xCAT-server/lib/xcat/plugins/hosts.pm
+++ b/xCAT-server/lib/xcat/plugins/hosts.pm
@@ -173,6 +173,13 @@ sub process_request {
     if (-e "/etc/hosts") {
       my $bakname = "/etc/hosts.xcatbak";
       rename("/etc/hosts",$bakname);
+      
+      # add the localhost entry if trying to create the /etc/hosts from scratch
+      if ($^O =~ /^aix/i) {
+        push @hosts, "127.0.0.1 loopback localhost\n";
+      } else {
+        push @hosts, "127.0.0.1 localhost\n";
+      }
     }
   } else {
     if (-e "/etc/hosts") {
@@ -217,7 +224,10 @@ sub process_request {
     }
   }
   writeout();
-  flock($lockh,LOCK_UN);
+  
+  if ($lockh) {
+    flock($lockh,LOCK_UN);
+  }
 }