nameser.h 20 KB

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  1. /*
  2. * Copyright (c) 1983, 1989, 1993
  3. * The Regents of the University of California. All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions
  7. * are met:
  8. * 1. Redistributions of source code must retain the above copyright
  9. * notice, this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. * 4. Neither the name of the University nor the names of its contributors
  14. * may be used to endorse or promote products derived from this software
  15. * without specific prior written permission.
  16. *
  17. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27. * SUCH DAMAGE.
  28. */
  29. /*
  30. * Copyright (c) 1996-1999 by Internet Software Consortium.
  31. *
  32. * Permission to use, copy, modify, and distribute this software for any
  33. * purpose with or without fee is hereby granted, provided that the above
  34. * copyright notice and this permission notice appear in all copies.
  35. *
  36. * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
  37. * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
  38. * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
  39. * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
  40. * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
  41. * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  42. * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  43. * SOFTWARE.
  44. */
  45. /*
  46. * $BINDId: nameser.h,v 8.37 2000/03/30 21:16:49 vixie Exp $
  47. */
  48. #ifndef _ARPA_NAMESER_H_
  49. #define _ARPA_NAMESER_H_
  50. #define BIND_4_COMPAT
  51. #include <sys/param.h>
  52. #if (!defined(BSD)) || (BSD < 199306)
  53. # include <sys/bitypes.h>
  54. #else
  55. # include <sys/types.h>
  56. #endif
  57. #include <sys/cdefs.h>
  58. /*
  59. * Revision information. This is the release date in YYYYMMDD format.
  60. * It can change every day so the right thing to do with it is use it
  61. * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
  62. * compare for equality; rather, use it to determine whether your libbind.a
  63. * contains a new enough lib/nameser/ to support the feature you need.
  64. */
  65. #define __NAMESER 19991006 /* New interface version stamp. */
  66. /*
  67. * Define constants based on RFC 883, RFC 1034, RFC 1035
  68. */
  69. #define NS_PACKETSZ 512 /* maximum packet size */
  70. #define NS_MAXDNAME 1025 /* maximum domain name */
  71. #define NS_MAXCDNAME 255 /* maximum compressed domain name */
  72. #define NS_MAXLABEL 63 /* maximum length of domain label */
  73. #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
  74. #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
  75. #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
  76. #define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */
  77. #define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */
  78. #define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */
  79. #define NS_INADDRSZ 4 /* IPv4 T_A */
  80. #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */
  81. #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
  82. #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
  83. /*
  84. * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
  85. * in synch with it.
  86. */
  87. typedef enum __ns_sect {
  88. ns_s_qd = 0, /* Query: Question. */
  89. ns_s_zn = 0, /* Update: Zone. */
  90. ns_s_an = 1, /* Query: Answer. */
  91. ns_s_pr = 1, /* Update: Prerequisites. */
  92. ns_s_ns = 2, /* Query: Name servers. */
  93. ns_s_ud = 2, /* Update: Update. */
  94. ns_s_ar = 3, /* Query|Update: Additional records. */
  95. ns_s_max = 4
  96. } ns_sect;
  97. /*
  98. * This is a message handle. It is caller allocated and has no dynamic data.
  99. * This structure is intended to be opaque to all but ns_parse.c, thus the
  100. * leading _'s on the member names. Use the accessor functions, not the _'s.
  101. */
  102. typedef struct __ns_msg {
  103. const u_char *_msg, *_eom;
  104. u_int16_t _id, _flags, _counts[ns_s_max];
  105. const u_char *_sections[ns_s_max];
  106. ns_sect _sect;
  107. int _rrnum;
  108. const u_char *_ptr;
  109. } ns_msg;
  110. /* Private data structure - do not use from outside library. */
  111. struct _ns_flagdata { int mask, shift; };
  112. extern struct _ns_flagdata _ns_flagdata[];
  113. /* Accessor macros - this is part of the public interface. */
  114. #define ns_msg_getflag(handle, flag) ( \
  115. ((handle)._flags & _ns_flagdata[flag].mask) \
  116. >> _ns_flagdata[flag].shift \
  117. )
  118. #define ns_msg_id(handle) ((handle)._id + 0)
  119. #define ns_msg_base(handle) ((handle)._msg + 0)
  120. #define ns_msg_end(handle) ((handle)._eom + 0)
  121. #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
  122. #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
  123. /*
  124. * This is a parsed record. It is caller allocated and has no dynamic data.
  125. */
  126. typedef struct __ns_rr {
  127. char name[NS_MAXDNAME];
  128. u_int16_t type;
  129. u_int16_t rr_class;
  130. u_int32_t ttl;
  131. u_int16_t rdlength;
  132. const u_char * rdata;
  133. } ns_rr;
  134. /* Accessor macros - this is part of the public interface. */
  135. #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
  136. #define ns_rr_type(rr) ((ns_type)((rr).type + 0))
  137. #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
  138. #define ns_rr_ttl(rr) ((rr).ttl + 0)
  139. #define ns_rr_rdlen(rr) ((rr).rdlength + 0)
  140. #define ns_rr_rdata(rr) ((rr).rdata + 0)
  141. /*
  142. * These don't have to be in the same order as in the packet flags word,
  143. * and they can even overlap in some cases, but they will need to be kept
  144. * in synch with ns_parse.c:ns_flagdata[].
  145. */
  146. typedef enum __ns_flag {
  147. ns_f_qr, /* Question/Response. */
  148. ns_f_opcode, /* Operation code. */
  149. ns_f_aa, /* Authoritative Answer. */
  150. ns_f_tc, /* Truncation occurred. */
  151. ns_f_rd, /* Recursion Desired. */
  152. ns_f_ra, /* Recursion Available. */
  153. ns_f_z, /* MBZ. */
  154. ns_f_ad, /* Authentic Data (DNSSEC). */
  155. ns_f_cd, /* Checking Disabled (DNSSEC). */
  156. ns_f_rcode, /* Response code. */
  157. ns_f_max
  158. } ns_flag;
  159. /*
  160. * Currently defined opcodes.
  161. */
  162. typedef enum __ns_opcode {
  163. ns_o_query = 0, /* Standard query. */
  164. ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
  165. ns_o_status = 2, /* Name server status query (unsupported). */
  166. /* Opcode 3 is undefined/reserved. */
  167. ns_o_notify = 4, /* Zone change notification. */
  168. ns_o_update = 5, /* Zone update message. */
  169. ns_o_max = 6
  170. } ns_opcode;
  171. /*
  172. * Currently defined response codes.
  173. */
  174. typedef enum __ns_rcode {
  175. ns_r_noerror = 0, /* No error occurred. */
  176. ns_r_formerr = 1, /* Format error. */
  177. ns_r_servfail = 2, /* Server failure. */
  178. ns_r_nxdomain = 3, /* Name error. */
  179. ns_r_notimpl = 4, /* Unimplemented. */
  180. ns_r_refused = 5, /* Operation refused. */
  181. /* these are for BIND_UPDATE */
  182. ns_r_yxdomain = 6, /* Name exists */
  183. ns_r_yxrrset = 7, /* RRset exists */
  184. ns_r_nxrrset = 8, /* RRset does not exist */
  185. ns_r_notauth = 9, /* Not authoritative for zone */
  186. ns_r_notzone = 10, /* Zone of record different from zone section */
  187. ns_r_max = 11,
  188. /* The following are TSIG extended errors */
  189. ns_r_badsig = 16,
  190. ns_r_badkey = 17,
  191. ns_r_badtime = 18
  192. } ns_rcode;
  193. /* BIND_UPDATE */
  194. typedef enum __ns_update_operation {
  195. ns_uop_delete = 0,
  196. ns_uop_add = 1,
  197. ns_uop_max = 2
  198. } ns_update_operation;
  199. /*
  200. * This structure is used for TSIG authenticated messages
  201. */
  202. struct ns_tsig_key {
  203. char name[NS_MAXDNAME], alg[NS_MAXDNAME];
  204. unsigned char *data;
  205. int len;
  206. };
  207. typedef struct ns_tsig_key ns_tsig_key;
  208. /*
  209. * This structure is used for TSIG authenticated TCP messages
  210. */
  211. struct ns_tcp_tsig_state {
  212. int counter;
  213. struct dst_key *key;
  214. void *ctx;
  215. unsigned char sig[NS_PACKETSZ];
  216. int siglen;
  217. };
  218. typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
  219. #define NS_TSIG_FUDGE 300
  220. #define NS_TSIG_TCP_COUNT 100
  221. #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
  222. #define NS_TSIG_ERROR_NO_TSIG -10
  223. #define NS_TSIG_ERROR_NO_SPACE -11
  224. #define NS_TSIG_ERROR_FORMERR -12
  225. /*
  226. * Currently defined type values for resources and queries.
  227. */
  228. typedef enum __ns_type {
  229. ns_t_invalid = 0, /* Cookie. */
  230. ns_t_a = 1, /* Host address. */
  231. ns_t_ns = 2, /* Authoritative server. */
  232. ns_t_md = 3, /* Mail destination. */
  233. ns_t_mf = 4, /* Mail forwarder. */
  234. ns_t_cname = 5, /* Canonical name. */
  235. ns_t_soa = 6, /* Start of authority zone. */
  236. ns_t_mb = 7, /* Mailbox domain name. */
  237. ns_t_mg = 8, /* Mail group member. */
  238. ns_t_mr = 9, /* Mail rename name. */
  239. ns_t_null = 10, /* Null resource record. */
  240. ns_t_wks = 11, /* Well known service. */
  241. ns_t_ptr = 12, /* Domain name pointer. */
  242. ns_t_hinfo = 13, /* Host information. */
  243. ns_t_minfo = 14, /* Mailbox information. */
  244. ns_t_mx = 15, /* Mail routing information. */
  245. ns_t_txt = 16, /* Text strings. */
  246. ns_t_rp = 17, /* Responsible person. */
  247. ns_t_afsdb = 18, /* AFS cell database. */
  248. ns_t_x25 = 19, /* X_25 calling address. */
  249. ns_t_isdn = 20, /* ISDN calling address. */
  250. ns_t_rt = 21, /* Router. */
  251. ns_t_nsap = 22, /* NSAP address. */
  252. ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
  253. ns_t_sig = 24, /* Security signature. */
  254. ns_t_key = 25, /* Security key. */
  255. ns_t_px = 26, /* X.400 mail mapping. */
  256. ns_t_gpos = 27, /* Geographical position (withdrawn). */
  257. ns_t_aaaa = 28, /* Ip6 Address. */
  258. ns_t_loc = 29, /* Location Information. */
  259. ns_t_nxt = 30, /* Next domain (security). */
  260. ns_t_eid = 31, /* Endpoint identifier. */
  261. ns_t_nimloc = 32, /* Nimrod Locator. */
  262. ns_t_srv = 33, /* Server Selection. */
  263. ns_t_atma = 34, /* ATM Address */
  264. ns_t_naptr = 35, /* Naming Authority PoinTeR */
  265. ns_t_kx = 36, /* Key Exchange */
  266. ns_t_cert = 37, /* Certification record */
  267. ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
  268. ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
  269. ns_t_sink = 40, /* Kitchen sink (experimentatl) */
  270. ns_t_opt = 41, /* EDNS0 option (meta-RR) */
  271. ns_t_tsig = 250, /* Transaction signature. */
  272. ns_t_ixfr = 251, /* Incremental zone transfer. */
  273. ns_t_axfr = 252, /* Transfer zone of authority. */
  274. ns_t_mailb = 253, /* Transfer mailbox records. */
  275. ns_t_maila = 254, /* Transfer mail agent records. */
  276. ns_t_any = 255, /* Wildcard match. */
  277. ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
  278. ns_t_max = 65536
  279. } ns_type;
  280. /* Exclusively a QTYPE? (not also an RTYPE) */
  281. #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
  282. (t) == ns_t_mailb || (t) == ns_t_maila)
  283. /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
  284. #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
  285. /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
  286. #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
  287. #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
  288. #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
  289. (t) == ns_t_zxfr)
  290. /*
  291. * Values for class field
  292. */
  293. typedef enum __ns_class {
  294. ns_c_invalid = 0, /* Cookie. */
  295. ns_c_in = 1, /* Internet. */
  296. ns_c_2 = 2, /* unallocated/unsupported. */
  297. ns_c_chaos = 3, /* MIT Chaos-net. */
  298. ns_c_hs = 4, /* MIT Hesiod. */
  299. /* Query class values which do not appear in resource records */
  300. ns_c_none = 254, /* for prereq. sections in update requests */
  301. ns_c_any = 255, /* Wildcard match. */
  302. ns_c_max = 65536
  303. } ns_class;
  304. /* DNSSEC constants. */
  305. typedef enum __ns_key_types {
  306. ns_kt_rsa = 1, /* key type RSA/MD5 */
  307. ns_kt_dh = 2, /* Diffie Hellman */
  308. ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */
  309. ns_kt_private = 254 /* Private key type starts with OID */
  310. } ns_key_types;
  311. typedef enum __ns_cert_types {
  312. cert_t_pkix = 1, /* PKIX (X.509v3) */
  313. cert_t_spki = 2, /* SPKI */
  314. cert_t_pgp = 3, /* PGP */
  315. cert_t_url = 253, /* URL private type */
  316. cert_t_oid = 254 /* OID private type */
  317. } ns_cert_types;
  318. /* Flags field of the KEY RR rdata. */
  319. #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */
  320. #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */
  321. #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */
  322. #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */
  323. #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */
  324. /* The type bits can also be interpreted independently, as single bits: */
  325. #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */
  326. #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */
  327. #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
  328. #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */
  329. #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */
  330. #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */
  331. #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */
  332. #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */
  333. #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */
  334. #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */
  335. #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */
  336. #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */
  337. #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */
  338. #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */
  339. #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */
  340. #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */
  341. #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
  342. NS_KEY_RESERVED4 | \
  343. NS_KEY_RESERVED5 | \
  344. NS_KEY_RESERVED8 | \
  345. NS_KEY_RESERVED9 | \
  346. NS_KEY_RESERVED10 | \
  347. NS_KEY_RESERVED11 )
  348. #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
  349. /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
  350. #define NS_ALG_MD5RSA 1 /* MD5 with RSA */
  351. #define NS_ALG_DH 2 /* Diffie Hellman KEY */
  352. #define NS_ALG_DSA 3 /* DSA KEY */
  353. #define NS_ALG_DSS NS_ALG_DSA
  354. #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */
  355. #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */
  356. /* Protocol values */
  357. /* value 0 is reserved */
  358. #define NS_KEY_PROT_TLS 1
  359. #define NS_KEY_PROT_EMAIL 2
  360. #define NS_KEY_PROT_DNSSEC 3
  361. #define NS_KEY_PROT_IPSEC 4
  362. #define NS_KEY_PROT_ANY 255
  363. /* Signatures */
  364. #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */
  365. #define NS_MD5RSA_MAX_BITS 2552
  366. /* Total of binary mod and exp */
  367. #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
  368. /* Max length of text sig block */
  369. #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
  370. #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
  371. #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
  372. #define NS_DSA_SIG_SIZE 41
  373. #define NS_DSA_MIN_SIZE 213
  374. #define NS_DSA_MAX_BYTES 405
  375. /* Offsets into SIG record rdata to find various values */
  376. #define NS_SIG_TYPE 0 /* Type flags */
  377. #define NS_SIG_ALG 2 /* Algorithm */
  378. #define NS_SIG_LABELS 3 /* How many labels in name */
  379. #define NS_SIG_OTTL 4 /* Original TTL */
  380. #define NS_SIG_EXPIR 8 /* Expiration time */
  381. #define NS_SIG_SIGNED 12 /* Signature time */
  382. #define NS_SIG_FOOT 16 /* Key footprint */
  383. #define NS_SIG_SIGNER 18 /* Domain name of who signed it */
  384. /* How RR types are represented as bit-flags in NXT records */
  385. #define NS_NXT_BITS 8
  386. #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
  387. #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
  388. #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
  389. #define NS_NXT_MAX 127
  390. /*
  391. * Inline versions of get/put short/long. Pointer is advanced.
  392. */
  393. #define NS_GET16(s, cp) do { \
  394. register u_char *t_cp = (u_char *)(cp); \
  395. (s) = ((u_int16_t)t_cp[0] << 8) \
  396. | ((u_int16_t)t_cp[1]) \
  397. ; \
  398. (cp) += NS_INT16SZ; \
  399. } while (0)
  400. #define NS_GET32(l, cp) do { \
  401. register u_char *t_cp = (u_char *)(cp); \
  402. (l) = ((u_int32_t)t_cp[0] << 24) \
  403. | ((u_int32_t)t_cp[1] << 16) \
  404. | ((u_int32_t)t_cp[2] << 8) \
  405. | ((u_int32_t)t_cp[3]) \
  406. ; \
  407. (cp) += NS_INT32SZ; \
  408. } while (0)
  409. #define NS_PUT16(s, cp) do { \
  410. register u_int16_t t_s = (u_int16_t)(s); \
  411. register u_char *t_cp = (u_char *)(cp); \
  412. *t_cp++ = t_s >> 8; \
  413. *t_cp = t_s; \
  414. (cp) += NS_INT16SZ; \
  415. } while (0)
  416. #define NS_PUT32(l, cp) do { \
  417. register u_int32_t t_l = (u_int32_t)(l); \
  418. register u_char *t_cp = (u_char *)(cp); \
  419. *t_cp++ = t_l >> 24; \
  420. *t_cp++ = t_l >> 16; \
  421. *t_cp++ = t_l >> 8; \
  422. *t_cp = t_l; \
  423. (cp) += NS_INT32SZ; \
  424. } while (0)
  425. /*
  426. * ANSI C identifier hiding for bind's lib/nameser.
  427. */
  428. #define ns_get16 __ns_get16
  429. #define ns_get32 __ns_get32
  430. #define ns_put16 __ns_put16
  431. #define ns_put32 __ns_put32
  432. #define ns_initparse __ns_initparse
  433. #define ns_skiprr __ns_skiprr
  434. #define ns_parserr __ns_parserr
  435. #define ns_sprintrr __ns_sprintrr
  436. #define ns_sprintrrf __ns_sprintrrf
  437. #define ns_format_ttl __ns_format_ttl
  438. #define ns_parse_ttl __ns_parse_ttl
  439. #define ns_datetosecs __ns_datetosecs
  440. #define ns_name_ntol __ns_name_ntol
  441. #define ns_name_ntop __ns_name_ntop
  442. #define ns_name_pton __ns_name_pton
  443. #define ns_name_unpack __ns_name_unpack
  444. #define ns_name_pack __ns_name_pack
  445. #define ns_name_compress __ns_name_compress
  446. #define ns_name_uncompress __ns_name_uncompress
  447. #define ns_name_skip __ns_name_skip
  448. #define ns_name_rollback __ns_name_rollback
  449. #define ns_sign __ns_sign
  450. #define ns_sign_tcp __ns_sign_tcp
  451. #define ns_sign_tcp_init __ns_sign_tcp_init
  452. #define ns_find_tsig __ns_find_tsig
  453. #define ns_verify __ns_verify
  454. #define ns_verify_tcp __ns_verify_tcp
  455. #define ns_verify_tcp_init __ns_verify_tcp_init
  456. #define ns_samedomain __ns_samedomain
  457. #define ns_subdomain __ns_subdomain
  458. #define ns_makecanon __ns_makecanon
  459. #define ns_samename __ns_samename
  460. __BEGIN_DECLS
  461. u_int ns_get16 (const u_char *) __THROW;
  462. u_long ns_get32 (const u_char *) __THROW;
  463. void ns_put16 (u_int, u_char *) __THROW;
  464. void ns_put32 (u_long, u_char *) __THROW;
  465. int ns_initparse (const u_char *, int, ns_msg *) __THROW;
  466. int ns_skiprr (const u_char *, const u_char *, ns_sect, int)
  467. __THROW;
  468. int ns_parserr (ns_msg *, ns_sect, int, ns_rr *) __THROW;
  469. int ns_sprintrr (const ns_msg *, const ns_rr *,
  470. const char *, const char *, char *, size_t)
  471. __THROW;
  472. int ns_sprintrrf (const u_char *, size_t, const char *,
  473. ns_class, ns_type, u_long, const u_char *,
  474. size_t, const char *, const char *,
  475. char *, size_t) __THROW;
  476. int ns_format_ttl (u_long, char *, size_t) __THROW;
  477. int ns_parse_ttl (const char *, u_long *) __THROW;
  478. u_int32_t ns_datetosecs (const char *cp, int *errp) __THROW;
  479. int ns_name_ntol (const u_char *, u_char *, size_t) __THROW;
  480. int ns_name_ntop (const u_char *, char *, size_t) __THROW;
  481. libc_hidden_proto(ns_name_ntop)
  482. int ns_name_pton (const char *, u_char *, size_t) __THROW;
  483. int ns_name_unpack (const u_char *, const u_char *,
  484. const u_char *, u_char *, size_t) __THROW;
  485. libc_hidden_proto(ns_name_unpack)
  486. int ns_name_pack (const u_char *, u_char *, int,
  487. const u_char **, const u_char **) __THROW;
  488. int ns_name_uncompress (const u_char *, const u_char *,
  489. const u_char *, char *, size_t) __THROW;
  490. libc_hidden_proto(ns_name_uncompress)
  491. int ns_name_compress (const char *, u_char *, size_t,
  492. const u_char **, const u_char **) __THROW;
  493. int ns_name_skip (const u_char **, const u_char *) __THROW;
  494. void ns_name_rollback (const u_char *, const u_char **,
  495. const u_char **) __THROW;
  496. int ns_sign (u_char *, int *, int, int, void *,
  497. const u_char *, int, u_char *, int *, time_t) __THROW;
  498. int ns_sign_tcp (u_char *, int *, int, int,
  499. ns_tcp_tsig_state *, int) __THROW;
  500. int ns_sign_tcp_init (void *, const u_char *, int,
  501. ns_tcp_tsig_state *) __THROW;
  502. u_char *ns_find_tsig (u_char *, u_char *) __THROW;
  503. int ns_verify (u_char *, int *, void *, const u_char *, int,
  504. u_char *, int *, time_t *, int) __THROW;
  505. int ns_verify_tcp (u_char *, int *, ns_tcp_tsig_state *, int)
  506. __THROW;
  507. int ns_verify_tcp_init (void *, const u_char *, int,
  508. ns_tcp_tsig_state *) __THROW;
  509. int ns_samedomain (const char *, const char *) __THROW;
  510. int ns_subdomain (const char *, const char *) __THROW;
  511. int ns_makecanon (const char *, char *, size_t) __THROW;
  512. int ns_samename (const char *, const char *) __THROW;
  513. __END_DECLS
  514. #ifdef BIND_4_COMPAT
  515. #include <arpa/nameser_compat.h>
  516. #endif
  517. #endif /* !_ARPA_NAMESER_H_ */