Socket::GetAddrInfo::SUsertContributed Perl Socket::GetAddrInfo::Socket6api(3)NAME
"Socket::GetAddrInfo::Socket6api" - Provide Socket::GetAddrInfo
functions using Socket6 API
SYNOPSIS
use Socket qw( AF_UNSPEC SOCK_STREAM );
use Socket::GetAddrInfo::Socket6api qw( getaddrinfo getnameinfo );
my $sock;
my @res = getaddrinfo( "www.google.com", "www", AF_UNSPEC, SOCK_STREAM );
die "Cannot resolve name - $res[0]" if @res == 1;
while( @res >= 5 ) {
my ( $family, $socktype, $protocol, $addr, undef ) = splice @res, 0, 5, ();
$sock = IO::Socket->new();
$sock->socket( $family, $socktype, $protocol ) or
undef $sock, next;
$sock->connect( $addr ) or undef $sock, next;
last;
}
if( $sock ) {
my ( $host, $service ) = getnameinfo( $sock->peername );
print "Connected to $host:$service\n" if defined $host;
}
DESCRIPTION
Socket::GetAddrInfo provides the RFC 2553-specified functions of
"getaddrinfo" and "getnameinfo", using a convenient interface where
hints and address structures are represented as hashes. Socket6 also
provides these functions, in a form taking and returning flat lists of
values.
This module wraps the functions provided by "Socket::GetAddrInfo" to
provide them in an identical API to "Socket6". It is intended to stand
as a utility for existing code written for the "Socket6" API to use
these functions instead.
These functions can also be obtained by importing from
"Socket::GetAddrInfo" using a special tag:
use Socket::GetAddrInfo qw( :Socket6api getaddrinfo );
FUNCTIONS
@res = getaddrinfo( $host, $service, $family, $socktype, $protocol, $flags
)
This version of the API takes the hints values as separate ordered
parameters. Unspecified parameters should be passed as 0.
If successful, this function returns a flat list of values, five for
each returned address structure. Each group of five elements will
contain, in order, the "family", "socktype", "protocol", "addr" and
"canonname" values of the address structure.
If unsuccessful, it will return a single value, containing the string
error message. To remain compatible with the "Socket6" interface, this
value does not have the error integer part.
( $host, $service ) = getnameinfo( $addr, $flags )
This version of the API returns only the host name and service name, if
successfully resolved. On error, it will return an empty list. To
remain compatible with the "Socket6" interface, no error information
will be supplied.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.18.22014-05-14Socket::GetAddrInfo::Socket6api(3)
