-Be more specific abount looking for -n argument on makedhcp

-Have nodeonmynet function more gracefully handle being passed an unresolvable name

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@863 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

perl-xCAT-2.0/xCAT/Utils.pm

@@ -1211,6 +1211,9 @@ sub nodeonmynet
     {
         $nodetocheck = shift;
     }
+    unless (inet_aton($nodetocheck)) {
+       return 0;
+    }
     my $nodeip = inet_ntoa(inet_aton($nodetocheck));
     unless ($nodeip =~ /\d+\.\d+\.\d+\.\d+/)
     {

xCAT-server-2.0/lib/xcat/plugins/dhcp.pm

@@ -227,7 +227,7 @@ sub process_request {
       $callback->({data=>["Usage: makedhcp <-n> <noderange>"]});
       return;
   }
-  if (grep /-n/,@{$req->{arg}}) {
+  if (grep /^-n$/,@{$req->{arg}}) {
     if (-e "/etc/dhcpd.conf") {
       my $bakname = "/etc/dhcpd.conf.xcatbak";
       rename("/etc/dhcpd.conf",$bakname);