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package HotSaNICmod::OSdep;

use lib "../../lib";
use RRDs;

eval { require "platform/syssnmp.pm"; };
$NO_SNMP=1 if($@);

sub version {
  ($VERSION = '$Revision: 1.3 $') =~ s/.*(\d+\.\d+).*/$1/;
  return "$^O.pm $VERSION";
  }

sub sample {
  my %args=@_;

  my %maxin;
  my %maxout;
  my %devin;
  my %devout;
  my %sampletime;
  my %snmpdev;

  foreach (keys(%args)) {
    if ( index($_,"DEV") >= 0) { 
      ($dev,$maxin,$maxout,$description)=split /,/,$args{$_};

      if ( index($dev,"SNMP\:") >= 0) {
        (undef,$host,$community,$interface)=split /:/,$dev;
        my $max = $maxin;
        $max = $maxout if $maxin < $maxout;
        my @data = ( $interface, $max);
        if (defined $snmpdev{$host."_".$community}) {
          push @{$snmpdev{$host."_".$community}}, @data;
        } else { 
          $snmpdev{$host."_".$community} = [ @data ] ;
        }
      } else { 
        $dev =~ s/:/_/g; 
        $maxin{$dev}=$maxin;
        $maxout{$dev}=$maxout;
        $devin{$dev}="U";
        $devout{$dev}="U";
        $sampletime{$dev}=time;
      }
    }
  }

  open(IN,"netstat -nib | grep Link |");
  while(<IN>) {
    chomp;
    @line  = split;
    $name  = $line[0];
    $input = $line[$#line-4];
    $output= $line[$#line-1];
    $devin{$name}=$input;
    $devout{$name}=$output;
    $sampletime{$name}=time;
    }
  close(IN);

  #
  # then query SNMP hosts and check interfaces
  #

  syssnmp::do_snmp(%snmpdev);

  #
  # save data
  #
  foreach $name (keys %maxin) {

    # build new database if needed
    #
    if (! -e "rrd/$name.rrd" ) {
          
      # get max. transmission value
      #
      my $max=$maxin{$name};
      if ($max < $maxout{$name}) { $max=$maxout{$name} };
        
      # if max-transmission is not set, assume 100 MBit.
      #
      if ($max == 0) { $max=12500000; }
      system("./makerrd","$name","$max")
      }
        
    # update database
    RRDs::update "rrd/$name.rrd",$sampletime{$name}.":".$devin{$name}.":".$devout{$name};
    if ($ERROR = RRDs::error) { print time,": ",$args{MODNAME},": unable to update `$name.rrd': $ERROR\n"; }
    }

  }

1;