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package HotSaNICmod::OSdep;

sub version {
  ($VERSION = '$Revision: 1.7 $') =~ s/.*(\d+\.\d+).*/$1/;
  return "default.pm $VERSION";
  }

sub sample {

#
# TODO:   DB rebuild
#

  my %args=@_;

# exit if DBs were changed earlier than 1 day ago
  my ($min,$max)=HotSaNICmod::get_last_DB_changes();
  if ( ($min>=0) && ($min<86400) ) { return 0; }

  my %NETWORK;
  my @NETWORKS;
  my $OTHER;

# each configured address gets its configured name. the relation of IPs to names are stored in %NETWORKS.
# this hash can easily be traversed to assign the correct names to IPs.
#
  foreach (@{$args{NETWORK}}) {
    my ($name,$range)=split /:/;
    push @NETWORKS,$name;
    if ($range eq "*") { $OTHER=$name; }
    else { for $subnet (split /,/,$range) { $NETWORK{$subnet}=$name; } }
    }

  ($logdate,$date,$entrydate1,$entrydate2,$sampletime)=getdatestrings(1);

  foreach $type ("RC5","OGR","CSC","DES") {

    $filename=$args{LOGPATH}."/".$args{"LOGNAME_$type"}.$logdate.".log";

    foreach (@NETWORKS) { $results{$_}{$type}=0; }

    if ( -e $filename ) {
      if (HotSaNIClog::check_debuglevel("MODULE_VERBOSE")) { HotSaNIClog::info("reading $filename ..."); }
      open FILE,$filename;
      while (<FILE>) {
        chomp;
        ($timestamp,$ip,undef,undef,$size)=split /,/,$_;
        ($linedate)=split / /,$timestamp;
        if (($linedate eq $entrydate1) || ($linedate eq $entrydate2)) {
          $network=ip2name($ip,$OTHER,%NETWORK);
          $results{$network}{$type}+=$size;
          }
        }
      close FILE;
      }
    }
  foreach (@NETWORKS) {
    HotSaNICmod::do_rrd($_,"U",$sampletime,$results{$_}{RC5},$results{$_}{OGR},$results{$_}{CSC},$results{$_}{DES});
    }
  }


# convert IP number to a configured network or host.
#
sub ip2name {
  my ($ip,$OTHER,%NETWORK)=@_;
  my $name=$OTHER;
  foreach my $subnet (keys %NETWORK) {
    if (index("$ip.",$subnet) == 0) { $name=$NETWORK{$subnet}; }
    }
  return $name;
  }


# calculate date-strings of "$days days ago" 
#
sub getdatestrings {
  my $days=shift;
  my $sampletime=(int(time/86400)-$days)*86400;
  (undef,undef,undef,my $mday,my $mon,my $year,undef,undef,undef) = localtime($sampletime);
    
  $year+=1900;
  $mon++;
  if ($mon < 10) { $mon="0$mon"; }
  if ($mday < 10) { $mday = "0".$mday; }
    
  my $yyyymm="$year$mon";
  my $yyyymmdd="$year$mon$mday";
  my $entrydate1="$mon/$mday/".substr($year,2,2);
  my $entrydate2="$year-$mon-$mday";
  return ($yyyymm,$yyyymmdd,$entrydate1,$entrydate2,$sampletime);
  }

1;