#!/usr/bin/perl
#
# example01.pl - Example of Net::TcpDumpLog. Prints out frame arrival times.
#
# 11-Oct-2003	Brendan Gregg	Created this

use Net::TcpDumpLog;

$log = Net::TcpDumpLog->new(32);	
$log->read("tcpdumplog");		
				
$count = $log->maxindex + 1;
@Indexes = $log->indexes;

print "Log version : ",$log->version,"\n";
print "Linktype    : ",$log->linktype,"\n";
print "Packet count: $count\n\n";

printf "%5s  %25s  %7s %5s  %s\n","Frame","Arrival time","+ MSecs","Drops",
 "Length";

foreach $index (@Indexes) {
	($length_orig,$length_incl,$drops,$secs,$msecs) = $log->header($index);
	$data = $log->data($index);

        $time = localtime($secs);

	$msecs = $msecs / 1000000;
	$length = length($data);

	printf "%5d  %25s  %7.5f %5d  %d\n",$index,$time,$msecs,$drops,$length;
}

# example02.pl - Example of Net::TcpDumpLog. Prints out ethernet headers.
# 11-Oct-2003	Brendan Gregg	Created this

$log->read("tcpdumplog");		
					
@Indexes = $log->indexes;

printf "%5s  %12s    %12s  %4s  %s\n","Frame","Source","Dest","Type","Length";

foreach $index (@Indexes) {
	$data = $log->data($index);

	### Process Ethernet header
	($ether_dest,$ether_src,$ether_type,$ether_data) = 
	 unpack('H12H12H4a*',$data);
	$length = length($ether_data);

	printf "%5d  %12s -> %12s  %4s  %s\n",$index,$ether_src,$ether_dest,
	 $ether_type,$length;

}