Net::NIS - Interface to Sun's Network Information Service
The Net::NIS interface comes in two parts. The first part is the raw implementation of the NIS API. The second is the object interface, described in Net::NIS::Table. This document describes the NIS API implementation.
The NIS package implements all functions described in the ypclnt(3N) manual page.
The following commands have been implemented:
Bind the process to a NIS server for the domain $domain. This function is rarely needed. See yp_bind(3N).
Unbind the process from the specified $domain. This function is also rarely required. See yp_unbind(3N).
- $domain = yp_get_default_domain()
- ($status, $value) = yp_match($domain, $map, $key)
Return the $value for the given $key in the $map for the domain $domain. The $key must be an exact match for an item in the map (i.e. yp_match does no partial matching. The $value is only valid if $status is equal to $YP_SUCCESS.
- ($status, $key, $value) = yp_first($domain, $map)
Return the first key-value pair from $map in $domain. As the NIS maps are stored in a DBM table, the order of the returned values is not obvious.
- ($status, $key, $value) = yp_next($domain, $map, $key)
Return the next key-value pair from $map in $domain. The $key must be provided from the previous yp_first or yp_next. The yp_first/yp_next method is not recommended, as under some circumstances, entries can be skipped or returned twice. yp_all is a better interface to use.
- ($status, \%values) = yp_all($domain, $map)
The yp_all call returns an entire map in the %values associative array.
- ($status, $order) = yp_order($domain, $map)
This function returns the order number for $domain. Whatever that is. It mustn't be very important, since it's not implemented on NIS+ servers running in "YP-compatibility mode". I put it in for completeness.
- ($status, $name) = yp_master($domain, $map)
Returns the machine name of the master server for a map.
- $error = yperr_string($status)
Returns a string representation of the error code passed in $status.
- $status = ypprot_err($code)
Translates a NIS name service protocol error code to a ypclnt layer error code. Only used for the C version of yp_all, and it is only implemented here for completeness.
The $status variable returned by the above functions can have one of the following values:
$Net::NIS::ERR_ACCESS Access violation $Net::NIS::ERR_BADARGS Args to function are bad $Net::NIS::ERR_BADDB yp data base is bad $Net::NIS::ERR_BUSY Database is busy $Net::NIS::ERR_DOMAIN Can't bind to a server which serves this domain $Net::NIS::ERR_KEY No such key in map $Net::NIS::ERR_MAP No such map in server's domain $Net::NIS::ERR_NODOM Local domain name not set $Net::NIS::ERR_PMAP Can't communicate with portmapper $Net::NIS::ERR_NOMORE No more records in map database $Net::NIS::ERR_RESRC Local resource allocation failure $Net::NIS::ERR_RPC RPC failure $Net::NIS::ERR_YPBIND Can't communicate with ypbind $Net::NIS::ERR_YPERR Internal yp server or client interface error $Net::NIS::ERR_YPSERV Can't communicate with ypserv $Net::NIS::ERR_VERS YP version mismatch
Copyright (c) 1995 Rik Harris (email@example.com). All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The Network Information Service (NIS) was formerly known as Sun Yellow Pages (YP). The functionality of the two remains the same; only the name has changed. The name Yellow Pages is a registered trademark in the United Kingdom of British Telecommunications plc, and may not be used without permission.