Net::Write::Layer2(3pm) User Contributed Perl Documentation Net::Write::Layer2(3pm)NAME
Net::Write::Layer2 - object for a link layer (layer 2) descriptor
SYNOPSIS
use Net::Write::Layer2;
my $desc = Net::Write::Layer2->new(
dev => 'eth0',
);
$desc->open;
$desc->send('G'x666);
$desc->close;
DESCRIPTION
This is the class for creating a layer 2 descriptor.
ATTRIBUTES
dev The string specifying network interface to use.
Under Unix-like systems, this is in this format: w+d+ (example: eth0).
Under Windows systems, this is more complex; example: DeviceNPF_{0749A9BC-C665-4C55-A4A7-34AC2FBAB70F}
METHODS
new Object constructor. You MUST pass a valid dev attribute. There is no default value.
open
Open the interface.
send (scalar)
Send raw data to the network.
close
Close the descriptor.
CAVEATS
Writing junk to loopback interface on BSD systems will not work.
SEE ALSO
Net::Write::Layer
AUTHOR
Patrice <GomoR> Auffret
COPYRIGHT AND LICENSE
Copyright (c) 2006-2009, Patrice <GomoR> Auffret
You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.
perl v5.10.1 2009-06-10 Net::Write::Layer2(3pm)
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Net::Write::Layer4(3pm) User Contributed Perl Documentation Net::Write::Layer4(3pm)NAME
Net::Write::Layer4 - object for a transport layer (layer 4) descriptor
SYNOPSIS
use Net::Write::Layer qw(:constants);
use Net::Write::Layer4;
my $desc = Net::Write::Layer4->new(
dst => '192.168.0.1',
protocol => NW_IPPROTO_TCP,
family => NW_AF_INET,
);
$desc->open;
$desc->send('G'x666);
$desc->close;
DESCRIPTION
This is the class for creating a layer 4 descriptor.
ATTRIBUTES
dst The target IPv4 or IPv6 address we will send frames to.
family
Address family, see Net::Write::Layer CONSTANTS section.
protocol
Transport layer protocol to use, see Net::Write::Layer CONSTANTS section.
METHODS
new Object constructor. You MUST pass a valid dst attribute. Default values:
protocol: NW_IPPROTO_TCP
family: NW_AF_INET
open
Open the interface.
send (scalar)
Send raw data to the network.
close
Close the descriptor.
CAVEATS
Does not work at all under Win32 systems. They can't send frames at layer 4.
SEE ALSO
Net::Write::Layer
AUTHOR
Patrice <GomoR> Auffret
COPYRIGHT AND LICENSE
Copyright (c) 2006-2009, Patrice <GomoR> Auffret
You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.
perl v5.10.1 2009-06-10 Net::Write::Layer4(3pm)
Write a program that demonstrates use of signal handler using
a) Wait b) Waitpid
and explain the difference between the two based on your experience of computing
Write code for the following.
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