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.\" ========================================================================
.\"
.IX Title "Interface::Simple 3pm"
.TH Interface::Simple 3pm "2007-01-22" "perl v5.20.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
IO::Interface::Simple \- Perl extension for access to network card configuration information
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use IO::Interface::Simple;
\&
\& my $if1   = IO::Interface::Simple\->new(\*(Aqeth0\*(Aq);
\& my $if2   = IO::Interface::Simple\->new_from_address(\*(Aq127.0.0.1\*(Aq);
\& my $if3   = IO::Interface::Simple\->new_from_index(1);
\&
\& my @interfaces = IO::Interface::Simple\->interfaces;
\&
\& for my $if (@interfaces) {
\&    print "interface = $if\en";
\&    print "addr =      ",$if\->address,"\en",
\&          "broadcast = ",$if\->broadcast,"\en",
\&          "netmask =   ",$if\->netmask,"\en",
\&          "dstaddr =   ",$if\->dstaddr,"\en",
\&          "hwaddr =    ",$if\->hwaddr,"\en",
\&          "mtu =       ",$if\->mtu,"\en",
\&          "metric =    ",$if\->metric,"\en",
\&          "index =     ",$if\->index,"\en";
\&
\&    print "is running\en"     if $if\->is_running;
\&    print "is broadcast\en"   if $if\->is_broadcast;
\&    print "is p\-to\-p\en"      if $if\->is_pt2pt;
\&    print "is loopback\en"    if $if\->is_loopback;
\&    print "is promiscuous\en" if $if\->is_promiscuous;
\&    print "is multicast\en"   if $if\->is_multicast;
\&    print "is notrailers\en"  if $if\->is_notrailers;
\&    print "is noarp\en"       if $if\->is_noarp;
\&  }
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
IO::Interface::Simple allows you to interrogate and change network
interfaces. It has overlapping functionality with Net::Interface, but
might compile and run on more platforms.
.SS "Class Methods"
.IX Subsection "Class Methods"
.ie n .IP "$interface = IO::Interface::Simple\->new('eth0')" 4
.el .IP "\f(CW$interface\fR = IO::Interface::Simple\->new('eth0')" 4
.IX Item "$interface = IO::Interface::Simple->new('eth0')"
Given an interface name, \fInew()\fR creates an interface object.
.ie n .IP "@iflist = IO::Interface::Simple\->interfaces;" 4
.el .IP "\f(CW@iflist\fR = IO::Interface::Simple\->interfaces;" 4
.IX Item "@iflist = IO::Interface::Simple->interfaces;"
Returns a list of active interface objects.
.ie n .IP "$interface = IO::Interface::Simple\->new_from_address('192.168.0.1')" 4
.el .IP "\f(CW$interface\fR = IO::Interface::Simple\->new_from_address('192.168.0.1')" 4
.IX Item "$interface = IO::Interface::Simple->new_from_address('192.168.0.1')"
Returns the interface object corresponding to the given address.
.ie n .IP "$interface = IO::Interface::Simple\->\fInew_from_index\fR\|(2)" 4
.el .IP "\f(CW$interface\fR = IO::Interface::Simple\->\fInew_from_index\fR\|(2)" 4
.IX Item "$interface = IO::Interface::Simple->new_from_index"
Returns the interface object corresponding to the given numeric
index. This is only supported on BSD-ish platforms.
.SS "Object Methods"
.IX Subsection "Object Methods"
.ie n .IP "$name = $interface\->name" 4
.el .IP "\f(CW$name\fR = \f(CW$interface\fR\->name" 4
.IX Item "$name = $interface->name"
Get the name of the interface. The interface object is also overloaded
so that if you use it in a string context it is the same as calling
\&\fIname()\fR.
.ie n .IP "$index = $interface\->index" 4
.el .IP "\f(CW$index\fR = \f(CW$interface\fR\->index" 4
.IX Item "$index = $interface->index"
Get the index of the interface. This is only supported on BSD-like
platforms.
.ie n .IP "$addr = $interface\->address([$newaddr])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->address([$newaddr])" 4
.IX Item "$addr = $interface->address([$newaddr])"
Get or set the interface's address.
.ie n .IP "$addr = $interface\->broadcast([$newaddr])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->broadcast([$newaddr])" 4
.IX Item "$addr = $interface->broadcast([$newaddr])"
Get or set the interface's broadcast address.
.ie n .IP "$addr = $interface\->netmask([$newmask])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->netmask([$newmask])" 4
.IX Item "$addr = $interface->netmask([$newmask])"
Get or set the interface's netmask.
.ie n .IP "$addr = $interface\->hwaddr([$newaddr])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->hwaddr([$newaddr])" 4
.IX Item "$addr = $interface->hwaddr([$newaddr])"
Get or set the interface's hardware address.
.ie n .IP "$addr = $interface\->mtu([$newmtu])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->mtu([$newmtu])" 4
.IX Item "$addr = $interface->mtu([$newmtu])"
Get or set the interface's \s-1MTU.\s0
.ie n .IP "$addr = $interface\->metric([$newmetric])" 4
.el .IP "\f(CW$addr\fR = \f(CW$interface\fR\->metric([$newmetric])" 4
.IX Item "$addr = $interface->metric([$newmetric])"
Get or set the interface's metric.
.ie n .IP "$flags = $interface\->flags([$newflags])" 4
.el .IP "\f(CW$flags\fR = \f(CW$interface\fR\->flags([$newflags])" 4
.IX Item "$flags = $interface->flags([$newflags])"
Get or set the interface's flags. These can be ANDed with the \s-1IFF\s0
constants exported by IO::Interface or Net::Interface in order to
interrogate the state and capabilities of the interface. However, it
is probably more convenient to use the broken-out methods listed
below.
.ie n .IP "$flag = $interface\->is_running([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_running([$newflag])" 4
.IX Item "$flag = $interface->is_running([$newflag])"
.PD 0
.ie n .IP "$flag = $interface\->is_broadcast([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_broadcast([$newflag])" 4
.IX Item "$flag = $interface->is_broadcast([$newflag])"
.ie n .IP "$flag = $interface\->is_pt2pt([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_pt2pt([$newflag])" 4
.IX Item "$flag = $interface->is_pt2pt([$newflag])"
.ie n .IP "$flag = $interface\->is_loopback([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_loopback([$newflag])" 4
.IX Item "$flag = $interface->is_loopback([$newflag])"
.ie n .IP "$flag = $interface\->is_promiscuous([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_promiscuous([$newflag])" 4
.IX Item "$flag = $interface->is_promiscuous([$newflag])"
.ie n .IP "$flag = $interface\->is_multicast([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_multicast([$newflag])" 4
.IX Item "$flag = $interface->is_multicast([$newflag])"
.ie n .IP "$flag = $interface\->is_notrailers([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_notrailers([$newflag])" 4
.IX Item "$flag = $interface->is_notrailers([$newflag])"
.ie n .IP "$flag = $interface\->is_noarp([$newflag])" 4
.el .IP "\f(CW$flag\fR = \f(CW$interface\fR\->is_noarp([$newflag])" 4
.IX Item "$flag = $interface->is_noarp([$newflag])"
.PD
Get or set the corresponding configuration parameters. Note that the
operating system may not let you set some of these.
.SH "AUTHOR"
.IX Header "AUTHOR"
Lincoln Stein <lstein@cshl.org>
.PP
This module is distributed under the same license as Perl itself.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
perl, IO::Socket, IO::Multicast), IO::Interface, Net::Interface