/usr/include/dns/byaddr.h is in libbind-dev 1:9.11.3+dfsg-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 | /*
* Copyright (C) 2000-2007, 2016 Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
/* $Id: byaddr.h,v 1.22 2007/06/19 23:47:16 tbox Exp $ */
#ifndef DNS_BYADDR_H
#define DNS_BYADDR_H 1
/*****
***** Module Info
*****/
/*! \file dns/byaddr.h
* \brief
* The byaddr module provides reverse lookup services for IPv4 and IPv6
* addresses.
*
* MP:
*\li The module ensures appropriate synchronization of data structures it
* creates and manipulates.
*
* Reliability:
*\li No anticipated impact.
*
* Resources:
*\li TBS
*
* Security:
*\li No anticipated impact.
*
* Standards:
*\li RFCs: 1034, 1035, 2181, TBS
*\li Drafts: TBS
*/
#include <isc/lang.h>
#include <isc/event.h>
#include <dns/types.h>
ISC_LANG_BEGINDECLS
/*%
* A 'dns_byaddrevent_t' is returned when a byaddr completes.
* The sender field will be set to the byaddr that completed. If 'result'
* is ISC_R_SUCCESS, then 'names' will contain a list of names associated
* with the address. The recipient of the event must not change the list
* and must not refer to any of the name data after the event is freed.
*/
typedef struct dns_byaddrevent {
ISC_EVENT_COMMON(struct dns_byaddrevent);
isc_result_t result;
dns_namelist_t names;
} dns_byaddrevent_t;
/*
* This option is deprecated since we now only consider nibbles.
#define DNS_BYADDROPT_IPV6NIBBLE 0x0001
*/
/*% Note DNS_BYADDROPT_IPV6NIBBLE is now deprecated. */
#define DNS_BYADDROPT_IPV6INT 0x0002
isc_result_t
dns_byaddr_create(isc_mem_t *mctx, isc_netaddr_t *address, dns_view_t *view,
unsigned int options, isc_task_t *task,
isc_taskaction_t action, void *arg, dns_byaddr_t **byaddrp);
/*%<
* Find the domain name of 'address'.
*
* Notes:
*
*\li There is a reverse lookup format for IPv6 addresses, 'nibble'
*
*\li The 'nibble' format for that address is
*
* \code
* 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.
* \endcode
*
*\li #DNS_BYADDROPT_IPV6INT can be used to get nibble lookups under ip6.int.
*
* Requires:
*
*\li 'mctx' is a valid mctx.
*
*\li 'address' is a valid IPv4 or IPv6 address.
*
*\li 'view' is a valid view which has a resolver.
*
*\li 'task' is a valid task.
*
*\li byaddrp != NULL && *byaddrp == NULL
*
* Returns:
*
*\li #ISC_R_SUCCESS
*\li #ISC_R_NOMEMORY
*
*\li Any resolver-related error (e.g. #ISC_R_SHUTTINGDOWN) may also be
* returned.
*/
void
dns_byaddr_cancel(dns_byaddr_t *byaddr);
/*%<
* Cancel 'byaddr'.
*
* Notes:
*
*\li If 'byaddr' has not completed, post its #DNS_EVENT_BYADDRDONE
* event with a result code of #ISC_R_CANCELED.
*
* Requires:
*
*\li 'byaddr' is a valid byaddr.
*/
void
dns_byaddr_destroy(dns_byaddr_t **byaddrp);
/*%<
* Destroy 'byaddr'.
*
* Requires:
*
*\li '*byaddrp' is a valid byaddr.
*
*\li The caller has received the #DNS_EVENT_BYADDRDONE event (either because
* the byaddr completed or because dns_byaddr_cancel() was called).
*
* Ensures:
*
*\li *byaddrp == NULL.
*/
isc_result_t
dns_byaddr_createptrname(isc_netaddr_t *address, isc_boolean_t nibble,
dns_name_t *name);
isc_result_t
dns_byaddr_createptrname2(isc_netaddr_t *address, unsigned int options,
dns_name_t *name);
/*%<
* Creates a name that would be used in a PTR query for this address. The
* nibble flag indicates that the 'nibble' format is to be used if an IPv6
* address is provided, instead of the 'bitstring' format. Since we dropped
* the support of the bitstring labels, it is expected that the flag is always
* set. 'options' are the same as for dns_byaddr_create().
*
* Requires:
*
* \li 'address' is a valid address.
* \li 'name' is a valid name with a dedicated buffer.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_BYADDR_H */
|