/* * Copyright (c) 2004, 2005, 2007 Apple Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * Modification History * * March 9, 2004 Allan Nathanson <ajn@apple.com> * - initial revision */ #include <stdio.h> #include <stdlib.h> #include <mach/mach.h> #include <mach/mach_error.h> #include <servers/bootstrap.h> #include "dnsinfo_private.h" #include "shared_dns_info_types.h" __private_extern__ const char * _dns_configuration_notify_key() { return "com.apple.system.SystemConfiguration.dns_configuration"; } __private_extern__ mach_port_t _dns_configuration_server_port() { mach_port_t server = MACH_PORT_NULL; char *server_name; kern_return_t status; server_name = getenv("DNS_SERVER"); if (!server_name) { server_name = DNS_SERVER; } status = bootstrap_look_up(bootstrap_port, server_name, &server); switch (status) { case BOOTSTRAP_SUCCESS : /* service currently registered, "a good thing" (tm) */ break; case BOOTSTRAP_UNKNOWN_SERVICE : /* service not currently registered, try again later */ return MACH_PORT_NULL; default : fprintf(stderr, "could not lookup DNS configuration info service: %s\n", bootstrap_strerror(status)); return MACH_PORT_NULL; } return server; }