NAME

use Net::Pcap::Dump :short;
    use Net::Pcap::Linktype :short;
    use Net::Pcap::C_Buf :short;


my $data = C_Buf.new(Buf.new([0x00, 0x01, 0x02, 0x03]));
    my $dump = Dumper.open('dump.pcap', Linktype::Ethernet, 1500);
    $dump.dump($data);


SYNOPSIS

EXPORTS

DESCRIPTION

head

code

=begin code
Implements `pcap_dump_t`.
=end code



unit class Net::Pcap::Dump;

my constant Dump is export(:short) ::= Net::Pcap::Dump;





=begin code
$.pcap_dump  is rw  is OpaquePointer
  Pointer to the pcap_dump_t structure.

$.pcap       is rw  is Net::Pcap
  Parent pcap_t structure.
=end code



has OpaquePointer $.pcap_dump is rw;
has Net::Pcap $.pcap is rw;



my sub pcap_dump_open(Net::Pcap $p, Str $fname)
    returns OpaquePointer
    is native('libpcap') { * };
my sub pcap_dump_close(OpaquePointer $p)
    is native('libpcap') { * };

my sub pcap_dump(OpaquePointer $user, Net::Pcap::pcap_pkthdr_t $h, OpaquePointer $p)
    is native('libpcap') { * };

my sub pcap_geterr(Net::Pcap $p)
    returns Str
    is native('libpcap') { * };



=begin code
.open(Net::Pcap $p, Str $fname) returns Net::Pcap::Dump
  Constructor for Net::Pcap::Dump. Calls pcap_dump_open($p, $fname).

.open(Str $fname, Net::Pcap::Linktype $linktype, Int $snaplen) returns Net::Pcap::Dump
  Constructor for Net::Pcap::Dump. Calls pcap_open_dead and pcap_dump_open.
=end code



multi method open(Net::Pcap $p, Str $fname) {
    my $dump = pcap_dump_open($p, $fname);
    if !$dump {
	die("Pcap::Dumper->open: " ~ pcap_geterr($p));
    }
    self.bless(:$dump);
}

multi method open(Str $fname, Net::Pcap::Linktype $linktype, Int $snaplen) {
    my $pcap = Net::Pcap.open_dead($linktype.value, $snaplen);
    if !$pcap {
	die("Dump.open: Could not open_dead");
    }
    my $pcap_dump = pcap_dump_open($pcap, $fname);
    if !$pcap_dump {
	die("Dump.open: Could not dump_open" ~ pcap_geterr($pcap));
    }
    self.new(:$pcap, :$pcap_dump);
}





=begin code
.close()
  Closes the pcap_dump_t, and (if constructed by .open()) closes the parent pcap_t.
=end code



method close() {
    pcap_dump_close($.pcap_dump) if $.pcap_dump;
    $.pcap.close() if $.pcap;
}





=begin code
.dump(Net::Pcap::C_Buf $data, Real $seconds)
  Write packet to file. Constructs a pcap_pkthdr_t with caplen and len from C_Buf.elems,
  and tv_usec and tv_sec from $seconds. Then calls pcap_dump on the data and the pcap_pkthdr_t
  structure.
=end code



method dump(Net::Pcap::C_Buf $data, Real $secs) {
    my Int $tv_sec = $secs.floor;
    my Int $tv_usec = (($secs-$tv_sec)*1e6).floor;
    my Int $caplen = $data.bytes;
    my Int $len = $data.bytes;
    my $pkthdr = Net::Pcap::pcap_pkthdr_t.new(:$tv_sec, :$tv_usec, :$caplen, :$len);
    pcap_dump($.pcap_dump, $pkthdr, $data.ptr);
}



root

Net::Pcap::Linktype


Net::Pcap::C_Buf;


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Net::Pcap::Dump - Write packets to file.

NAME

SYNOPSIS

EXPORTS

class Net::Pcap::Dump

Attributes

Methods