dnsinfo/dnsinfo.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, 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 /*
  29  * These routines provide access to the systems DNS configuration
  30  */
  31
  32
  33 #include <stdint.h>
  34 #include <sys/types.h>
  35 #include <sys/socket.h>
  36 #include <netinet/in.h>
  37
  38 #include <sys/cdefs.h>
  39
  40
  41 #define DEFAULT_SEARCH_ORDER    200000   /* search order for the "default" resolver domain name */
  42
  43
  44 typedef struct {
  45         struct in_addr  address;
  46         struct in_addr  mask;
  47 } dns_sortaddr_t;
  48
  49
  50 typedef struct {
  51         char            *domain;        /* domain */
  52         int32_t         n_nameserver;   /* # nameserver */
  53         struct sockaddr **nameserver;
  54         uint16_t        port;           /* port (in host byte order) */
  55         int32_t         n_search;       /* # search */
  56         char            **search;
  57         int32_t         n_sortaddr;     /* # sortaddr */
  58         dns_sortaddr_t  **sortaddr;
  59         char            *options;       /* options */
  60         uint32_t        timeout;        /* timeout */
  61         uint32_t        search_order;   /* search_order */
  62         void            *reserved[8];
  63 } dns_resolver_t;
  64
  65
  66 typedef struct {
  67         int32_t         n_resolver;     /* resolver configurations */
  68         dns_resolver_t  **resolver;
  69         void            *reserved[8];
  70 } dns_config_t;
  71
  72
  73 __BEGIN_DECLS
  74
  75 /*
  76  * DNS configuration access APIs
  77  */
  78 const char *    dns_configuration_notify_key    ();
  79 dns_config_t *  dns_configuration_copy          ();
  80 void            dns_configuration_free          (dns_config_t *config);
  81
  82 __END_DECLS
  83
  84 #endif __DNSINFO_H__