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| 1 /* |
| 2 * Copyright (c) 2004-2006, 2008, 2009, 2011 Apple Inc. All rights reserved. |
| 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 #ifndef __DNSINFO_H__ |
| 25 #define __DNSINFO_H__ |
| 26 |
| 27 /* |
| 28 * These routines provide access to the systems DNS configuration |
| 29 */ |
| 30 |
| 31 #include <sys/cdefs.h> |
| 32 #include <stdint.h> |
| 33 #include <sys/types.h> |
| 34 #include <sys/socket.h> |
| 35 #include <netinet/in.h> |
| 36 |
| 37 #define DNSINFO_VERSION 20111104 |
| 38 |
| 39 #define DEFAULT_SEARCH_ORDER 200000 /* search order for the "default" resol
ver domain name */ |
| 40 |
| 41 #define DNS_PTR(type, name) \ |
| 42 union { \ |
| 43 type name; \ |
| 44 uint64_t _ ## name ## _p; \ |
| 45 } |
| 46 |
| 47 #define DNS_VAR(type, name) \ |
| 48 type name |
| 49 |
| 50 |
| 51 #pragma pack(4) |
| 52 typedef struct { |
| 53 struct in_addr address; |
| 54 struct in_addr mask; |
| 55 } dns_sortaddr_t; |
| 56 #pragma pack() |
| 57 |
| 58 |
| 59 #pragma pack(4) |
| 60 typedef struct { |
| 61 DNS_PTR(char *, domain); /* domain */ |
| 62 DNS_VAR(int32_t, n_nameserver); /* # nameserver */ |
| 63 DNS_PTR(struct sockaddr **, nameserver); |
| 64 DNS_VAR(uint16_t, port); /* port (in host byte or
der) */ |
| 65 DNS_VAR(int32_t, n_search); /* # search */ |
| 66 DNS_PTR(char **, search); |
| 67 DNS_VAR(int32_t, n_sortaddr); /* # sortaddr */ |
| 68 DNS_PTR(dns_sortaddr_t **, sortaddr); |
| 69 DNS_PTR(char *, options); /* options */ |
| 70 DNS_VAR(uint32_t, timeout); /* timeout */ |
| 71 DNS_VAR(uint32_t, search_order); /* search_order */ |
| 72 DNS_VAR(uint32_t, if_index); |
| 73 DNS_VAR(uint32_t, flags); |
| 74 DNS_VAR(uint32_t, reach_flags); /* SCNetworkReachability
Flags */ |
| 75 DNS_VAR(uint32_t, reserved[5]); |
| 76 } dns_resolver_t; |
| 77 #pragma pack() |
| 78 |
| 79 |
| 80 #define DNS_RESOLVER_FLAGS_SCOPED 1 /* configuration is for
scoped questions */ |
| 81 |
| 82 |
| 83 #pragma pack(4) |
| 84 typedef struct { |
| 85 DNS_VAR(int32_t, n_resolver); /* resolver conf
igurations */ |
| 86 DNS_PTR(dns_resolver_t **, resolver); |
| 87 DNS_VAR(int32_t, n_scoped_resolver); /* "scoped" reso
lver configurations */ |
| 88 DNS_PTR(dns_resolver_t **, scoped_resolver); |
| 89 DNS_VAR(uint32_t, reserved[5]); |
| 90 } dns_config_t; |
| 91 #pragma pack() |
| 92 |
| 93 |
| 94 __BEGIN_DECLS |
| 95 |
| 96 /* |
| 97 * DNS configuration access APIs |
| 98 */ |
| 99 const char * |
| 100 dns_configuration_notify_key (); |
| 101 |
| 102 dns_config_t * |
| 103 dns_configuration_copy (); |
| 104 |
| 105 void |
| 106 dns_configuration_free (dns_config_t *config); |
| 107 |
| 108 void |
| 109 _dns_configuration_ack (dns_config_t *config, |
| 110 const char *bundle_id); |
| 111 |
| 112 __END_DECLS |
| 113 |
| 114 #endif /* __DNSINFO_H__ */ |
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