Setting tag myplc-5.1-5

[myplc.git] / plc.d / network

diff --git a/plc.d/network b/plc.d/network
index 9df70e4..363a0f6 100755 (executable)
--- a/plc.d/network
+++ b/plc.d/network
@@ -7,8 +7,6 @@
 # Mark Huang <mlhuang@cs.princeton.edu>
 # Copyright (C) 2006 The Trustees of Princeton University
 #
-# $Id: network 129 2007-03-20 12:04:03Z thierry $
-#
 
 # Source function library and configuration
 . /etc/plc.d/functions
@@ -17,34 +15,43 @@
 # Be verbose
 set -x
 
+[ "$PLC_HOSTS_ENABLED" -ne 1 ] && exit 0
+
 case "$1" in
     start)
        MESSAGE=$"Generating network files"
        dialog "$MESSAGE"
 
+       mv -f /etc/hosts /etc/hosts_plc.backup
+       hfile=$(mktemp)
        # Minimal /etc/hosts
-       echo "127.0.0.1 localhost.localdomain localhost" >/etc/hosts
-       (
-           for server in DB API BOOT WWW ; do
-               hostname=PLC_${server}_HOST
-               ip=PLC_${server}_IP
-               if [ -n "${!ip}" ] ; then
-                   echo "${!ip}        ${!hostname}"
-               else
-                   ip=$(gethostbyname ${!hostname})
-                   if [ -n "$ip" ] ; then
-                       echo "$ip       ${!hostname}"
-                   fi
+       for server in DB API BOOT WWW ; do
+           hostname=PLC_${server}_HOST
+           ip=PLC_${server}_IP
+           if [ -n "${!ip}" ] ; then
+               echo "${!ip}    ${!hostname}"
+           else
+               ip=$(gethostbyname ${!hostname})
+               if [ -n "$ip" ] ; then
+                   echo "$ip   ${!hostname}"
                fi
-           done
-       ) >>/etc/hosts
+           fi
+       done > $hfile
+       echo "#generated by /etc/plc.d/network" >/etc/hosts
+       echo "127.0.0.1 localhost.localdomain localhost" >> /etc/hosts
+       sort -u $hfile >> /etc/hosts
+       chmod +r /etc/hosts
+       rm -f $hfile
 
-       # Set up nameservers
-       (
-           [ -n "$PLC_NET_DNS1" ] && echo "nameserver $PLC_NET_DNS1"
-           [ -n "$PLC_NET_DNS2" ] && echo "nameserver $PLC_NET_DNS2"
-       ) >/etc/resolv.conf
+       result "$MESSAGE"
+       ;;
 
+    stop)
+       MESSAGE=$"Reverting network files"
+       if [ -f /etc/hosts_plc.backup ] ; then
+           mv -f /etc/hosts_plc.backup /etc/hosts
+       fi
+       dialog "$MESSAGE"
        result "$MESSAGE"
        ;;
 esac