#!/usr/bin/ruby -w

=begin
the mount point is the 2nd column(#1 starting from 0) for rclocal
the mount point is the 7th column(#6 starting from 0) for fstab

Right now we are searching for /nfs|smbfs|cifs|cvfs/ in fstab and all mounts in rclocal.
If we add new filesystems, we will need to modify the script.
=end

require 'socket'

#global variables begin with '$'
$proc_mounts = File.open("/proc/mounts", "r").readlines
$missing_mount = "su"

#local variables
fstab = File.open("/etc/fstab", "r").readlines
rclocal = File.open("/etc/rc.local", "r").readlines

def search_file (source_file, target_regex, col)
      
  for line in source_file
    unless /^#/ =~ line
      if(target_regex =~ line)
        src_file_elements = line.split()
        
        for rec in $proc_mounts
          was_found = false
          unless was_found == true
            rec.chomp!
            junk, mount_point, more_junk = rec.split
            
            if mount_point == src_file_elements[col]
              was_found = true
              break
            end
            
          end
        end
        
        if was_found == false
          $missing_mount = src_file_elements[col] 
        end
        
      end
    end
  end
end
    
  #main
  search_file(fstab, /nfs|smbfs|cifs|cvfs/, 1)
  search_file(rclocal, /^mount/, 6)
  
 if ($missing_mount.length > 3)
    puts "****Warning - " + $missing_mount + " does not seem to be mounted on " + Socket.gethostbyname(Socket.gethostname).first + ".  Please check all mounts."
    exit(2)
 else 
    puts "No missing mounts"
    exit(0)
 end