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#!perl -T
use strict;
use Test::More;
use Net::Pcap;
use lib 't';
use Utils;
my $total = 10; # number of packets to process
plan skip_all => "must be run as root" unless is_allowed_to_use_pcap();
plan skip_all => "no network device available" unless find_network_device();
plan tests => $total * 19 + 5;
my $has_test_exception = eval "use Test::Exception; 1";
my($dev,$pcap,$err) = ('','','');
# Find a device and open it
$dev = find_network_device();
$pcap = Net::Pcap::open_live($dev, 1024, 1, 100, \$err);
# Testing error messages
SKIP: {
skip "Test::Exception not available", 2 unless $has_test_exception;
# loop() errors
throws_ok(sub {
Net::Pcap::loop()
}, '/^Usage: Net::Pcap::loop\(p, cnt, callback, user\)/',
"calling loop() with no argument");
throws_ok(sub {
Net::Pcap::loop(0, 0, 0, 0)
}, '/^p is not of type pcap_tPtr/',
"calling loop() with incorrect argument type");
}
# Testing loop()
my $user_text = "Net::Pcap test suite";
my $count = 0;
sub process_packet {
my($user_data, $header, $packet) = @_;
pass( "process_packet() callback" );
is( $user_data, $user_text, " - user data is the expected text" );
ok( defined $header, " - header is defined" );
isa_ok( $header, 'HASH', " - header" );
for my $field (qw(len caplen tv_sec tv_usec)) {
ok( exists $header->{$field}, " - field '$field' is present" );
ok( defined $header->{$field}, " - field '$field' is defined" );
like( $header->{$field}, '/^\d+$/', " - field '$field' is a number" );
}
ok( $header->{caplen} <= $header->{len}, " - coherency check: packet length (caplen <= len)" );
ok( defined $packet, " - packet is defined" );
is( length $packet, $header->{caplen}, " - packet has the advertised size" );
$count++;
}
my $retval = eval { Net::Pcap::loop($pcap, $total, \&process_packet, $user_text) };
is( $@, '', "loop()" );
is( $count, $total, "all packets processed" );
is( $retval, 0, "checking return value" );
Net::Pcap::close($pcap);
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