/ 
Net-Finger-1.06
River stage zero No dependents
/ Net::Finger

NAME

Net::Finger - a Perl implementation of a finger client.

SYNOPSIS

use Net::Finger;

# You can put the response in a scalar...
$response = finger('corbeau@execpc.com');
unless ($response) {
    warn "Finger problem: $Net::Finger::error";
}

# ...or an array.
@lines = finger('corbeau@execpc.com', 1);

DESCRIPTION

Net::Finger is a simple, straightforward implementation of a finger client in Perl -- so simple, in fact, that writing this documentation is almost unnecessary.

This module has one automatically exported function, appropriately entitled finger(). It takes two arguments:

  • A username or email address to finger. (Yes, it does support the vaguely deprecated "user@host@host" syntax.) If you need to use a port other than the default finger port (79), you can specify it like so: "username@hostname:port".

  • (Optional) A boolean value for verbosity. True == verbose output. If you don't give it a value, it defaults to false. Actually, whether this output will differ from the non-verbose version at all is up to the finger server.

finger() is context-sensitive. If it's used in a scalar context, it will return the server's response in one large string. If it's used in an array context, it will return the response as a list, line by line. If an error of some sort occurs, it returns undef and puts a string describing the error into the package global variable $Net::Finger::error. If you'd like to see some excessively verbose output describing every step finger() takes while talking to the other server, put a true value in the variable $Net::Finger::debug.

Here's a sample program that implements a very tiny, stripped-down finger(1):

#!/usr/bin/perl -w

use Net::Finger;
use Getopt::Std;
use vars qw($opt_l);

getopts('l');
$x = finger($ARGV[0], $opt_l);

if ($x) {
    print $x;
} else {
    warn "$0: error: $Net::Finger::error\n";
}

BUGS

  • Doesn't yet do non-blocking requests. (FITNR. Really.)

  • Doesn't do local requests unless there's a finger server running on localhost.

  • Contrary to the name's implications, this module involves no teledildonics.

AUTHOR

Dennis Taylor, <corbeau@execpc.com>

SEE ALSO

perl(1), finger(1), RFC 1288.