~mfrey/+junk/temp : revision 9

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/* $NetBSD: nameser.h,v 1.19 2005/12/26 19:01:47 perry Exp $ */

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/*

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*

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* Redistribution and use in source and binary forms, with or without

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* modification, are permitted provided that the following conditions

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* are met:

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* 1. Redistributions of source code must retain the above copyright

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* notice, this list of conditions and the following disclaimer.

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* 2. Redistributions in binary form must reproduce the above copyright

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* notice, this list of conditions and the following disclaimer in the

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* documentation and/or other materials provided with the distribution.

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* 3. Neither the name of the University nor the names of its contributors

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* may be used to endorse or promote products derived from this software

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* without specific prior written permission.

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*

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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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* SUCH DAMAGE.

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*/

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/*

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*

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* Permission to use, copy, modify, and distribute this software for any

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* purpose with or without fee is hereby granted, provided that the above

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* copyright notice and this permission notice appear in all copies.

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*

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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES

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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR

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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT

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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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*/

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/*

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* Id: nameser.h,v 1.2.2.4.4.1 2004/03/09 08:33:30 marka Exp

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*/

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#ifndef _ARPA_NAMESER_H_

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#define _ARPA_NAMESER_H_

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#define BIND_4_COMPAT

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#include <sys/types.h>

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#include <sys/cdefs.h>

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/*

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* Revision information. This is the release date in YYYYMMDD format.

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* It can change every day so the right thing to do with it is use it

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* in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not

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* compare for equality; rather, use it to determine whether your libbind.a

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* contains a new enough lib/nameser/ to support the feature you need.

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*/

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#define __NAMESER 19991006 /* New interface version stamp. */

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/*

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* Define constants based on RFC 883, RFC 1034, RFC 1035

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*/

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#define NS_PACKETSZ 512 /* default UDP packet size */

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#define NS_MAXDNAME 1025 /* maximum domain name */

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#define NS_MAXMSG 65535 /* maximum message size */

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#define NS_MAXCDNAME 255 /* maximum compressed domain name */

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#define NS_MAXLABEL 63 /* maximum length of domain label */

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#define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */

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#define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */

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#define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */

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#define NS_INT32SZ 4 /* #/bytes of data in a uint32_t */

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#define NS_INT16SZ 2 /* #/bytes of data in a uint16_t */

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#define NS_INT8SZ 1 /* #/bytes of data in a uint8_t */

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#define NS_INADDRSZ 4 /* IPv4 T_A */

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#define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */

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#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */

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#define NS_DEFAULTPORT 53 /* For both TCP and UDP. */

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/*

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* These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()

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* in synch with it.

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*/

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typedef enum __ns_sect {

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ns_s_qd = 0, /* Query: Question. */

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ns_s_zn = 0, /* Update: Zone. */

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ns_s_an = 1, /* Query: Answer. */

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ns_s_pr = 1, /* Update: Prerequisites. */

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ns_s_ns = 2, /* Query: Name servers. */

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ns_s_ud = 2, /* Update: Update. */

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ns_s_ar = 3, /* Query|Update: Additional records. */

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ns_s_max = 4

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} ns_sect;

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/*

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* This is a message handle. It is caller allocated and has no dynamic data.

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* This structure is intended to be opaque to all but ns_parse.c, thus the

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* leading _'s on the member names. Use the accessor functions, not the _'s.

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*/

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typedef struct __ns_msg {

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const u_char *_msg, *_eom;

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uint16_t _id, _flags, _counts[ns_s_max];

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const u_char *_sections[ns_s_max];

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ns_sect _sect;

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int _rrnum;

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const u_char *_msg_ptr;

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} ns_msg;

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/* Private data structure - do not use from outside library. */

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struct _ns_flagdata { int mask, shift; };

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extern const struct _ns_flagdata _ns_flagdata[];

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/* Accessor macros - this is part of the public interface. */

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#define ns_msg_id(handle) ((handle)._id + 0)

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#define ns_msg_base(handle) ((handle)._msg + 0)

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#define ns_msg_end(handle) ((handle)._eom + 0)

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#define ns_msg_size(handle) ((size_t)((handle)._eom - (handle)._msg))

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#define ns_msg_count(handle, section) ((handle)._counts[section] + 0)

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/*

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* This is a parsed record. It is caller allocated and has no dynamic data.

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*/

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typedef struct __ns_rr {

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char name[NS_MAXDNAME];

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uint16_t type;

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uint16_t rr_class;

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uint32_t ttl;

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uint16_t rdlength;

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const u_char * rdata;

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} ns_rr;

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/* Accessor macros - this is part of the public interface. */

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#define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")

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#define ns_rr_type(rr) ((ns_type)((rr).type + 0))

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#define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))

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#define ns_rr_ttl(rr) ((u_long)(rr).ttl + 0)

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#define ns_rr_rdlen(rr) ((size_t)(rr).rdlength + 0)

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#define ns_rr_rdata(rr) ((rr).rdata + 0)

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/*

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* These don't have to be in the same order as in the packet flags word,

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* and they can even overlap in some cases, but they will need to be kept

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* in synch with ns_parse.c:ns_flagdata[].

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*/

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typedef enum __ns_flag {

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ns_f_qr, /* Question/Response. */

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ns_f_opcode, /* Operation code. */

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ns_f_aa, /* Authoritative Answer. */

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ns_f_tc, /* Truncation occurred. */

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ns_f_rd, /* Recursion Desired. */

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ns_f_ra, /* Recursion Available. */

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ns_f_z, /* MBZ. */

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ns_f_ad, /* Authentic Data (DNSSEC). */

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ns_f_cd, /* Checking Disabled (DNSSEC). */

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ns_f_rcode, /* Response code. */

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ns_f_max

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} ns_flag;

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/*

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* Currently defined opcodes.

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*/

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typedef enum __ns_opcode {

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ns_o_query = 0, /* Standard query. */

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ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */

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ns_o_status = 2, /* Name server status query (unsupported). */

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/* Opcode 3 is undefined/reserved. */

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ns_o_notify = 4, /* Zone change notification. */

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ns_o_update = 5, /* Zone update message. */

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ns_o_max = 6

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} ns_opcode;

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/*

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* Currently defined response codes.

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*/

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typedef enum __ns_rcode {

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ns_r_noerror = 0, /* No error occurred. */

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ns_r_formerr = 1, /* Format error. */

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ns_r_servfail = 2, /* Server failure. */

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ns_r_nxdomain = 3, /* Name error. */

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ns_r_notimpl = 4, /* Unimplemented. */

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ns_r_refused = 5, /* Operation refused. */

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/* these are for BIND_UPDATE */

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ns_r_yxdomain = 6, /* Name exists */

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ns_r_yxrrset = 7, /* RRset exists */

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ns_r_nxrrset = 8, /* RRset does not exist */

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ns_r_notauth = 9, /* Not authoritative for zone */

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ns_r_notzone = 10, /* Zone of record different from zone section */

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ns_r_max = 11,

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/* The following are EDNS extended rcodes */

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ns_r_badvers = 16,

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/* The following are TSIG errors */

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ns_r_badsig = 16,

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ns_r_badkey = 17,

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ns_r_badtime = 18

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} ns_rcode;

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/* BIND_UPDATE */

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typedef enum __ns_update_operation {

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ns_uop_delete = 0,

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ns_uop_add = 1,

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ns_uop_max = 2

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} ns_update_operation;

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/*

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* This structure is used for TSIG authenticated messages

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*/

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struct ns_tsig_key {

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char name[NS_MAXDNAME], alg[NS_MAXDNAME];

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unsigned char *data;

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int len;

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};

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typedef struct ns_tsig_key ns_tsig_key;

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/*

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* This structure is used for TSIG authenticated TCP messages

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*/

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struct ns_tcp_tsig_state {

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int counter;

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struct dst_key *key;

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void *ctx;

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unsigned char sig[NS_PACKETSZ];

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int siglen;

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};

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typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;

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#define NS_TSIG_FUDGE 300

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#define NS_TSIG_TCP_COUNT 100

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#define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"

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#define NS_TSIG_ERROR_NO_TSIG -10

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#define NS_TSIG_ERROR_NO_SPACE -11

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#define NS_TSIG_ERROR_FORMERR -12

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/*

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* Currently defined type values for resources and queries.

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*/

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typedef enum __ns_type {

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ns_t_invalid = 0, /* Cookie. */

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ns_t_a = 1, /* Host address. */

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ns_t_ns = 2, /* Authoritative server. */

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ns_t_md = 3, /* Mail destination. */

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ns_t_mf = 4, /* Mail forwarder. */

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ns_t_cname = 5, /* Canonical name. */

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ns_t_soa = 6, /* Start of authority zone. */

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ns_t_mb = 7, /* Mailbox domain name. */

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ns_t_mg = 8, /* Mail group member. */

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ns_t_mr = 9, /* Mail rename name. */

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ns_t_null = 10, /* Null resource record. */

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ns_t_wks = 11, /* Well known service. */

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ns_t_ptr = 12, /* Domain name pointer. */

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ns_t_hinfo = 13, /* Host information. */

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ns_t_minfo = 14, /* Mailbox information. */

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ns_t_mx = 15, /* Mail routing information. */

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ns_t_txt = 16, /* Text strings. */

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ns_t_rp = 17, /* Responsible person. */

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ns_t_afsdb = 18, /* AFS cell database. */

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ns_t_x25 = 19, /* X_25 calling address. */

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ns_t_isdn = 20, /* ISDN calling address. */

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ns_t_rt = 21, /* Router. */

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ns_t_nsap = 22, /* NSAP address. */

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ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */

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ns_t_sig = 24, /* Security signature. */

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ns_t_key = 25, /* Security key. */

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ns_t_px = 26, /* X.400 mail mapping. */

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ns_t_gpos = 27, /* Geographical position (withdrawn). */

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ns_t_aaaa = 28, /* Ip6 Address. */

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ns_t_loc = 29, /* Location Information. */

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ns_t_nxt = 30, /* Next domain (security). */

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ns_t_eid = 31, /* Endpoint identifier. */

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ns_t_nimloc = 32, /* Nimrod Locator. */

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ns_t_srv = 33, /* Server Selection. */

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ns_t_atma = 34, /* ATM Address */

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ns_t_naptr = 35, /* Naming Authority PoinTeR */

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ns_t_kx = 36, /* Key Exchange */

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ns_t_cert = 37, /* Certification record */

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ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */

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ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */

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ns_t_sink = 40, /* Kitchen sink (experimentatl) */

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ns_t_opt = 41, /* EDNS0 option (meta-RR) */

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ns_t_apl = 42, /* Address prefix list (RFC 3123) */

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ns_t_tkey = 249, /* Transaction key */

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ns_t_tsig = 250, /* Transaction signature. */

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ns_t_ixfr = 251, /* Incremental zone transfer. */

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ns_t_axfr = 252, /* Transfer zone of authority. */

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ns_t_mailb = 253, /* Transfer mailbox records. */

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ns_t_maila = 254, /* Transfer mail agent records. */

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ns_t_any = 255, /* Wildcard match. */

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ns_t_zxfr = 256, /* BIND-specific, nonstandard. */

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ns_t_max = 65536

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} ns_type;

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/* Exclusively a QTYPE? (not also an RTYPE) */

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#define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \

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(t) == ns_t_mailb || (t) == ns_t_maila)

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/* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */

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#define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)

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/* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */

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#define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))

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#define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)

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#define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \

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(t) == ns_t_zxfr)

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/*

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* Values for class field

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*/

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typedef enum __ns_class {

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ns_c_invalid = 0, /* Cookie. */

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ns_c_in = 1, /* Internet. */

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ns_c_2 = 2, /* unallocated/unsupported. */

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ns_c_chaos = 3, /* MIT Chaos-net. */

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ns_c_hs = 4, /* MIT Hesiod. */

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/* Query class values which do not appear in resource records */

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ns_c_none = 254, /* for prereq. sections in update requests */

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ns_c_any = 255, /* Wildcard match. */

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ns_c_max = 65536

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} ns_class;

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/* DNSSEC constants. */

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typedef enum __ns_key_types {

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ns_kt_rsa = 1, /* key type RSA/MD5 */

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ns_kt_dh = 2, /* Diffie Hellman */

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ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */

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ns_kt_private = 254 /* Private key type starts with OID */

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} ns_key_types;

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typedef enum __ns_cert_types {

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cert_t_pkix = 1, /* PKIX (X.509v3) */

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cert_t_spki = 2, /* SPKI */

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cert_t_pgp = 3, /* PGP */

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cert_t_url = 253, /* URL private type */

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cert_t_oid = 254 /* OID private type */

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} ns_cert_types;

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/* Flags field of the KEY RR rdata. */

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#define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */

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#define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */

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#define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */

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#define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */

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#define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */

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/* The type bits can also be interpreted independently, as single bits: */

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#define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */

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#define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */

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#define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */

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#define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */

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#define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */

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#define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */

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#define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */

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#define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */

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#define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */

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#define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */

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#define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */

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#define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */

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#define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */

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#define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */

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#define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */

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#define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */

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#define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \

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NS_KEY_RESERVED4 | \

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NS_KEY_RESERVED5 | \

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NS_KEY_RESERVED8 | \

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NS_KEY_RESERVED9 | \

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NS_KEY_RESERVED10 | \

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NS_KEY_RESERVED11 )

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#define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */

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/* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */

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#define NS_ALG_MD5RSA 1 /* MD5 with RSA */

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#define NS_ALG_DH 2 /* Diffie Hellman KEY */

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#define NS_ALG_DSA 3 /* DSA KEY */

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#define NS_ALG_DSS NS_ALG_DSA

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#define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */

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#define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */

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/* Protocol values */

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/* value 0 is reserved */

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#define NS_KEY_PROT_TLS 1

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#define NS_KEY_PROT_EMAIL 2

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#define NS_KEY_PROT_DNSSEC 3

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#define NS_KEY_PROT_IPSEC 4

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#define NS_KEY_PROT_ANY 255

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/* Signatures */

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#define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */

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#define NS_MD5RSA_MAX_BITS 4096

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/* Total of binary mod and exp */

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#define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)

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/* Max length of text sig block */

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#define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)

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#define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)

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#define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)

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#define NS_DSA_SIG_SIZE 41

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#define NS_DSA_MIN_SIZE 213

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#define NS_DSA_MAX_BYTES 405

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/* Offsets into SIG record rdata to find various values */

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#define NS_SIG_TYPE 0 /* Type flags */

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#define NS_SIG_ALG 2 /* Algorithm */

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#define NS_SIG_LABELS 3 /* How many labels in name */

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#define NS_SIG_OTTL 4 /* Original TTL */

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#define NS_SIG_EXPIR 8 /* Expiration time */

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#define NS_SIG_SIGNED 12 /* Signature time */

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#define NS_SIG_FOOT 16 /* Key footprint */

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#define NS_SIG_SIGNER 18 /* Domain name of who signed it */

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/* How RR types are represented as bit-flags in NXT records */

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#define NS_NXT_BITS 8

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#define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))

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#define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))

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#define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))

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#define NS_NXT_MAX 127

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/*

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* EDNS0 extended flags, host order.

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*/

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#define NS_OPT_DNSSEC_OK 0x8000U

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/*

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* Inline versions of get/put short/long. Pointer is advanced.

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*/

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#define NS_GET16(s, cp) do { \

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const u_char *t_cp = (const u_char *)(cp); \

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(s) = ((uint16_t)t_cp[0] << 8) \

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| ((uint16_t)t_cp[1]) \

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; \

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(cp) += NS_INT16SZ; \

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} while (/*CONSTCOND*/0)

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#define NS_GET32(l, cp) do { \

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const u_char *t_cp = (const u_char *)(cp); \

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(l) = ((uint32_t)t_cp[0] << 24) \

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| ((uint32_t)t_cp[1] << 16) \

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| ((uint32_t)t_cp[2] << 8) \

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| ((uint32_t)t_cp[3]) \

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; \

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(cp) += NS_INT32SZ; \

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} while (/*CONSTCOND*/0)

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#define NS_PUT16(s, cp) do { \

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uint32_t t_s = (uint32_t)(s); \

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u_char *t_cp = (u_char *)(cp); \

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*t_cp++ = t_s >> 8; \

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*t_cp = t_s; \

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(cp) += NS_INT16SZ; \

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} while (/*CONSTCOND*/0)

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#define NS_PUT32(l, cp) do { \

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uint32_t t_l = (uint32_t)(l); \

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u_char *t_cp = (u_char *)(cp); \

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*t_cp++ = t_l >> 24; \

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*t_cp++ = t_l >> 16; \

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*t_cp++ = t_l >> 8; \

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*t_cp = t_l; \

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(cp) += NS_INT32SZ; \

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} while (/*CONSTCOND*/0)

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/*

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* ANSI C identifier hiding for bind's lib/nameser.

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*/

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#define ns_msg_getflag __ns_msg_getflag

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#define ns_get16 __ns_get16

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#define ns_get32 __ns_get32

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#define ns_put16 __ns_put16

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#define ns_put32 __ns_put32

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#define ns_initparse __ns_initparse

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#define ns_skiprr __ns_skiprr

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#define ns_parserr __ns_parserr

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#define ns_sprintrr __ns_sprintrr

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#define ns_sprintrrf __ns_sprintrrf

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#define ns_format_ttl __ns_format_ttl

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#define ns_parse_ttl __ns_parse_ttl

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#define ns_datetosecs __ns_datetosecs

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#define ns_name_ntol __ns_name_ntol

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#define ns_name_ntop __ns_name_ntop

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#define ns_name_pton __ns_name_pton

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#define ns_name_unpack __ns_name_unpack

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#define ns_name_pack __ns_name_pack

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#define ns_name_compress __ns_name_compress

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#define ns_name_uncompress __ns_name_uncompress

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#define ns_name_skip __ns_name_skip

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#define ns_name_rollback __ns_name_rollback

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#define ns_sign __ns_sign

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#define ns_sign2 __ns_sign2

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#define ns_sign_tcp __ns_sign_tcp

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#define ns_sign_tcp2 __ns_sign_tcp2

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#define ns_sign_tcp_init __ns_sign_tcp_init

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#define ns_find_tsig __ns_find_tsig

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#define ns_verify __ns_verify

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#define ns_verify_tcp __ns_verify_tcp

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#define ns_verify_tcp_init __ns_verify_tcp_init

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#define ns_samedomain __ns_samedomain

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#define ns_subdomain __ns_subdomain

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#define ns_makecanon __ns_makecanon

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#define ns_samename __ns_samename

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__BEGIN_DECLS

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int ns_msg_getflag(ns_msg, int);

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uint16_t ns_get16(const u_char *);

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uint32_t ns_get32(const u_char *);

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void ns_put16(uint16_t, u_char *);

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void ns_put32(uint32_t, u_char *);

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int ns_initparse(const u_char *, int, ns_msg *);

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int ns_skiprr(const u_char *, const u_char *, ns_sect, int);

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int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);

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int ns_sprintrr(const ns_msg *, const ns_rr *,

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const char *, const char *, char *, size_t);

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int ns_sprintrrf(const u_char *, size_t, const char *,

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ns_class, ns_type, u_long, const u_char *,

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size_t, const char *, const char *,

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char *, size_t);

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int ns_format_ttl(u_long, char *, size_t);

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int ns_parse_ttl(const char *, u_long *);

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uint32_t ns_datetosecs(const char *cp, int *errp);

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int ns_name_ntol(const u_char *, u_char *, size_t);

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int ns_name_ntop(const u_char *, char *, size_t);

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int ns_name_pton(const char *, u_char *, size_t);

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int ns_name_unpack(const u_char *, const u_char *,

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const u_char *, u_char *, size_t);

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int ns_name_pack(const u_char *, u_char *, int,

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const u_char **, const u_char **);

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int ns_name_uncompress(const u_char *, const u_char *,

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const u_char *, char *, size_t);

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int ns_name_compress(const char *, u_char *, size_t,

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const u_char **, const u_char **);

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int ns_name_skip(const u_char **, const u_char *);

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void ns_name_rollback(const u_char *, const u_char **,

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const u_char **);

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int ns_sign(u_char *, int *, int, int, void *,

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const u_char *, int, u_char *, int *, time_t);

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int ns_sign2(u_char *, int *, int, int, void *,

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const u_char *, int, u_char *, int *, time_t,

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u_char **, u_char **);

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int ns_sign_tcp(u_char *, int *, int, int,

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ns_tcp_tsig_state *, int);

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int ns_sign_tcp2(u_char *, int *, int, int,

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ns_tcp_tsig_state *, int,

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u_char **, u_char **);

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int ns_sign_tcp_init(void *, const u_char *, int,

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ns_tcp_tsig_state *);

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u_char *ns_find_tsig(u_char *, u_char *);

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int ns_verify(u_char *, int *, void *,

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const u_char *, int, u_char *, int *,

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time_t *, int);

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int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);

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int ns_verify_tcp_init(void *, const u_char *, int,

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ns_tcp_tsig_state *);

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int ns_samedomain(const char *, const char *);

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int ns_subdomain(const char *, const char *);

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int ns_makecanon(const char *, char *, size_t);

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int ns_samename(const char *, const char *);

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__END_DECLS

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#ifdef BIND_4_COMPAT

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#include "arpa_nameser_compat.h"

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#endif

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#if 0

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# include <logd.h>

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# define XLOG(...) \

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__libc_android_log_print(ANDROID_LOG_DEBUG,"libc",__VA_ARGS__)

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#else

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#define XLOG(...) do {} while (0)

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#endif

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#endif /* !_ARPA_NAMESER_H_ */