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dbf6a266 | 1 | /* |
a40a14f8 | 2 | * Copyright (c) 2004, 2005, 2007, 2009 Apple Inc. All rights reserved. |
dbf6a266 A |
3 | * |
4 | * @APPLE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. Please obtain a copy of the License at | |
10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
11 | * file. | |
12 | * | |
13 | * The Original Code and all software distributed under the License are | |
14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
18 | * Please see the License for the specific language governing rights and | |
19 | * limitations under the License. | |
20 | * | |
21 | * @APPLE_LICENSE_HEADER_END@ | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Modification History | |
26 | * | |
27 | * March 9, 2004 Allan Nathanson <ajn@apple.com> | |
28 | * - initial revision | |
29 | */ | |
30 | ||
edebe297 | 31 | #include <stdio.h> |
dbf6a266 A |
32 | #include <stdlib.h> |
33 | #include <mach/mach.h> | |
34 | #include <mach/mach_error.h> | |
35 | #include <servers/bootstrap.h> | |
36 | ||
37 | #include "dnsinfo_private.h" | |
38 | #include "shared_dns_info_types.h" | |
39 | ||
40 | ||
41 | __private_extern__ | |
42 | const char * | |
43 | _dns_configuration_notify_key() | |
44 | { | |
851a47a8 | 45 | return "com.apple.system.SystemConfiguration.dns_configuration"; |
dbf6a266 A |
46 | } |
47 | ||
48 | ||
49 | __private_extern__ | |
50 | mach_port_t | |
51 | _dns_configuration_server_port() | |
52 | { | |
53 | mach_port_t server = MACH_PORT_NULL; | |
54 | char *server_name; | |
55 | kern_return_t status; | |
56 | ||
57 | server_name = getenv("DNS_SERVER"); | |
58 | if (!server_name) { | |
59 | server_name = DNS_SERVER; | |
60 | } | |
61 | ||
62 | status = bootstrap_look_up(bootstrap_port, server_name, &server); | |
63 | switch (status) { | |
64 | case BOOTSTRAP_SUCCESS : | |
65 | /* service currently registered, "a good thing" (tm) */ | |
66 | break; | |
67 | case BOOTSTRAP_UNKNOWN_SERVICE : | |
68 | /* service not currently registered, try again later */ | |
69 | return MACH_PORT_NULL; | |
70 | default : | |
edebe297 A |
71 | fprintf(stderr, |
72 | "could not lookup DNS configuration info service: %s\n", | |
73 | bootstrap_strerror(status)); | |
dbf6a266 A |
74 | return MACH_PORT_NULL; |
75 | } | |
76 | ||
77 | return server; | |
78 | } | |
79 |