#!/bin/ksh
################################################################################
#
# File:         mount_nfs
# RCS:          $Header:$
# Description:  A script to mount all nfs mounts. Note if the automounter is
#		running then this script will first shutdown the automounter.
#		This script returns 0 for success or non zero if it was unable
#		to umount all nfs mounts. This script must run as root.
# Author:       Andrew DeFaria, California Language Labs
# Created:      Fri Jun  6 10:31:51 PDT 1997
# Modified:     
# Language:     Korn Shell
#
# (c) Copyright 2001, Andrew@DeFaria.com, all rights reserved
#
################################################################################
# Set me to command name
me=$(basename $0)

# Set adm_base
adm_base=${adm_base:-$HOME/adm}

# Set adm_fpath
adm_fpath=${adm_fpath:-$adm_base/functions}

# Source functions
. $adm_fpath/common

if is_not_root; then
  error "This script must be run as root" 1
fi

integer automount_pid=$(process_is_running automount)
kill_automounter=yes

if [ $automount_pid -ne 0 ]; then
  print "Attempting to shutdown the automounter..."
  kill -15 $automount_pid

  print "Waiting for the automounter to shutdown..."
  integer max_tries=5
  integer wait_time=10

  while [ $max_tries -ne 0 ]; do
    sleep 10
    automount_pid=$(process_is_running automount)
    process_is_running automount
    if [ $automount_pid -ne 0 ]; then
      print "The automounter ($automount_pid) is still running!"
      print "I will wait $max_tries more time\c"
      if [ $max_tries -gt 1 ]; then
	print -u2 "s\c"
      fi
      print ". Waiting $wait_time seconds..."
      sleep $wait_time
    else
      break
    fi
    let max_tries=max_tries-1
  done
fi

automount_pid=$(process_is_running automount)
if [ $automount_pid -ne 0 ]; then
  print "The automounter has not shutdown! Continuing..."
else
  print "The automounter has been shut down successfully"
  touch /etc/automounter_was_here
fi

print "\nAttempting to unmount all nfs mounts"
if [ "$OS" = "09" ]; then
  /etc/umount -at nfs
else
  /usr/sbin/umount -a -F nfs
fi

integer nfs_mounts_left=$(grep -c "nfs" /etc/mnttab)

if [ $nfs_mounts_left -eq 0 ]; then
  print "All nfs filesystems have been successfully unmounted!"
  exit 0
else
  print "There \c"
  if [ $nfs_mounts_left -eq 1 ]; then
    print "is one filesystem left mounted:\n"
  else
    print "are $nfs_mounts_left filesystems left mounted:\n"
  fi
  grep nfs /etc/mnttab
  exit 1
fi