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. /* Accessor macros - this is part of the public interface. */
  111. #define ns_msg_id(handle) ((handle)._id + 0)
  112. #define ns_msg_base(handle) ((handle)._msg + 0)
  113. #define ns_msg_end(handle) ((handle)._eom + 0)
  114. #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
  115. #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
  116. /*
  117. * This is a parsed record. It is caller allocated and has no dynamic data.
  118. */
  119. typedef struct __ns_rr {
  120. char name[NS_MAXDNAME];
  121. u_int16_t type;
  122. u_int16_t rr_class;
  123. u_int32_t ttl;
  124. u_int16_t rdlength;
  125. const u_char * rdata;
  126. } ns_rr;
  127. /* Accessor macros - this is part of the public interface. */
  128. #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
  129. #define ns_rr_type(rr) ((ns_type)((rr).type + 0))
  130. #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
  131. #define ns_rr_ttl(rr) ((rr).ttl + 0)
  132. #define ns_rr_rdlen(rr) ((rr).rdlength + 0)
  133. #define ns_rr_rdata(rr) ((rr).rdata + 0)
  134. /*
  135. * These don't have to be in the same order as in the packet flags word,
  136. * and they can even overlap in some cases, but they will need to be kept
  137. * in synch with ns_parse.c:ns_flagdata[].
  138. */
  139. typedef enum __ns_flag {
  140. ns_f_qr, /* Question/Response. */
  141. ns_f_opcode, /* Operation code. */
  142. ns_f_aa, /* Authoritative Answer. */
  143. ns_f_tc, /* Truncation occurred. */
  144. ns_f_rd, /* Recursion Desired. */
  145. ns_f_ra, /* Recursion Available. */
  146. ns_f_z, /* MBZ. */
  147. ns_f_ad, /* Authentic Data (DNSSEC). */
  148. ns_f_cd, /* Checking Disabled (DNSSEC). */
  149. ns_f_rcode, /* Response code. */
  150. ns_f_max
  151. } ns_flag;
  152. /*
  153. * Currently defined opcodes.
  154. */
  155. typedef enum __ns_opcode {
  156. ns_o_query = 0, /* Standard query. */
  157. ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
  158. ns_o_status = 2, /* Name server status query (unsupported). */
  159. /* Opcode 3 is undefined/reserved. */
  160. ns_o_notify = 4, /* Zone change notification. */
  161. ns_o_update = 5, /* Zone update message. */
  162. ns_o_max = 6
  163. } ns_opcode;
  164. /*
  165. * Currently defined response codes.
  166. */
  167. typedef enum __ns_rcode {
  168. ns_r_noerror = 0, /* No error occurred. */
  169. ns_r_formerr = 1, /* Format error. */
  170. ns_r_servfail = 2, /* Server failure. */
  171. ns_r_nxdomain = 3, /* Name error. */
  172. ns_r_notimpl = 4, /* Unimplemented. */
  173. ns_r_refused = 5, /* Operation refused. */
  174. /* these are for BIND_UPDATE */
  175. ns_r_yxdomain = 6, /* Name exists */
  176. ns_r_yxrrset = 7, /* RRset exists */
  177. ns_r_nxrrset = 8, /* RRset does not exist */
  178. ns_r_notauth = 9, /* Not authoritative for zone */
  179. ns_r_notzone = 10, /* Zone of record different from zone section */
  180. ns_r_max = 11,
  181. /* The following are TSIG extended errors */
  182. ns_r_badsig = 16,
  183. ns_r_badkey = 17,
  184. ns_r_badtime = 18
  185. } ns_rcode;
  186. /* BIND_UPDATE */
  187. typedef enum __ns_update_operation {
  188. ns_uop_delete = 0,
  189. ns_uop_add = 1,
  190. ns_uop_max = 2
  191. } ns_update_operation;
  192. /*
  193. * This structure is used for TSIG authenticated messages
  194. */
  195. struct ns_tsig_key {
  196. char name[NS_MAXDNAME], alg[NS_MAXDNAME];
  197. unsigned char *data;
  198. int len;
  199. };
  200. typedef struct ns_tsig_key ns_tsig_key;
  201. /*
  202. * This structure is used for TSIG authenticated TCP messages
  203. */
  204. struct ns_tcp_tsig_state {
  205. int counter;
  206. struct dst_key *key;
  207. void *ctx;
  208. unsigned char sig[NS_PACKETSZ];
  209. int siglen;
  210. };
  211. typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
  212. #define NS_TSIG_FUDGE 300
  213. #define NS_TSIG_TCP_COUNT 100
  214. #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
  215. #define NS_TSIG_ERROR_NO_TSIG -10
  216. #define NS_TSIG_ERROR_NO_SPACE -11
  217. #define NS_TSIG_ERROR_FORMERR -12
  218. /*
  219. * Currently defined type values for resources and queries.
  220. */
  221. typedef enum __ns_type {
  222. ns_t_invalid = 0, /* Cookie. */
  223. ns_t_a = 1, /* Host address. */
  224. ns_t_ns = 2, /* Authoritative server. */
  225. ns_t_md = 3, /* Mail destination. */
  226. ns_t_mf = 4, /* Mail forwarder. */
  227. ns_t_cname = 5, /* Canonical name. */
  228. ns_t_soa = 6, /* Start of authority zone. */
  229. ns_t_mb = 7, /* Mailbox domain name. */
  230. ns_t_mg = 8, /* Mail group member. */
  231. ns_t_mr = 9, /* Mail rename name. */
  232. ns_t_null = 10, /* Null resource record. */
  233. ns_t_wks = 11, /* Well known service. */
  234. ns_t_ptr = 12, /* Domain name pointer. */
  235. ns_t_hinfo = 13, /* Host information. */
  236. ns_t_minfo = 14, /* Mailbox information. */
  237. ns_t_mx = 15, /* Mail routing information. */
  238. ns_t_txt = 16, /* Text strings. */
  239. ns_t_rp = 17, /* Responsible person. */
  240. ns_t_afsdb = 18, /* AFS cell database. */
  241. ns_t_x25 = 19, /* X_25 calling address. */
  242. ns_t_isdn = 20, /* ISDN calling address. */
  243. ns_t_rt = 21, /* Router. */
  244. ns_t_nsap = 22, /* NSAP address. */
  245. ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
  246. ns_t_sig = 24, /* Security signature. */
  247. ns_t_key = 25, /* Security key. */
  248. ns_t_px = 26, /* X.400 mail mapping. */
  249. ns_t_gpos = 27, /* Geographical position (withdrawn). */
  250. ns_t_aaaa = 28, /* Ip6 Address. */
  251. ns_t_loc = 29, /* Location Information. */
  252. ns_t_nxt = 30, /* Next domain (security). */
  253. ns_t_eid = 31, /* Endpoint identifier. */
  254. ns_t_nimloc = 32, /* Nimrod Locator. */
  255. ns_t_srv = 33, /* Server Selection. */
  256. ns_t_atma = 34, /* ATM Address */
  257. ns_t_naptr = 35, /* Naming Authority PoinTeR */
  258. ns_t_kx = 36, /* Key Exchange */
  259. ns_t_cert = 37, /* Certification record */
  260. ns_t_a6 = 38, /* IPv6 address (deprecated, use ns_t_aaaa) */
  261. ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
  262. ns_t_sink = 40, /* Kitchen sink (experimentatl) */
  263. ns_t_opt = 41, /* EDNS0 option (meta-RR) */
  264. ns_t_tsig = 250, /* Transaction signature. */
  265. ns_t_ixfr = 251, /* Incremental zone transfer. */
  266. ns_t_axfr = 252, /* Transfer zone of authority. */
  267. ns_t_mailb = 253, /* Transfer mailbox records. */
  268. ns_t_maila = 254, /* Transfer mail agent records. */
  269. ns_t_any = 255, /* Wildcard match. */
  270. ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
  271. ns_t_max = 65536
  272. } ns_type;
  273. /* Exclusively a QTYPE? (not also an RTYPE) */
  274. #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
  275. (t) == ns_t_mailb || (t) == ns_t_maila)
  276. /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
  277. #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
  278. /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
  279. #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
  280. #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
  281. #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
  282. (t) == ns_t_zxfr)
  283. /*
  284. * Values for class field
  285. */
  286. typedef enum __ns_class {
  287. ns_c_invalid = 0, /* Cookie. */
  288. ns_c_in = 1, /* Internet. */
  289. ns_c_2 = 2, /* unallocated/unsupported. */
  290. ns_c_chaos = 3, /* MIT Chaos-net. */
  291. ns_c_hs = 4, /* MIT Hesiod. */
  292. /* Query class values which do not appear in resource records */
  293. ns_c_none = 254, /* for prereq. sections in update requests */
  294. ns_c_any = 255, /* Wildcard match. */
  295. ns_c_max = 65536
  296. } ns_class;
  297. /* DNSSEC constants. */
  298. typedef enum __ns_key_types {
  299. ns_kt_rsa = 1, /* key type RSA/MD5 */
  300. ns_kt_dh = 2, /* Diffie Hellman */
  301. ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */
  302. ns_kt_private = 254 /* Private key type starts with OID */
  303. } ns_key_types;
  304. typedef enum __ns_cert_types {
  305. cert_t_pkix = 1, /* PKIX (X.509v3) */
  306. cert_t_spki = 2, /* SPKI */
  307. cert_t_pgp = 3, /* PGP */
  308. cert_t_url = 253, /* URL private type */
  309. cert_t_oid = 254 /* OID private type */
  310. } ns_cert_types;
  311. /* Flags field of the KEY RR rdata. */
  312. #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */
  313. #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */
  314. #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */
  315. #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */
  316. #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */
  317. /* The type bits can also be interpreted independently, as single bits: */
  318. #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */
  319. #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */
  320. #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
  321. #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */
  322. #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */
  323. #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */
  324. #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */
  325. #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */
  326. #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */
  327. #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */
  328. #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */
  329. #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */
  330. #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */
  331. #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */
  332. #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */
  333. #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */
  334. #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
  335. NS_KEY_RESERVED4 | \
  336. NS_KEY_RESERVED5 | \
  337. NS_KEY_RESERVED8 | \
  338. NS_KEY_RESERVED9 | \
  339. NS_KEY_RESERVED10 | \
  340. NS_KEY_RESERVED11 )
  341. #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
  342. /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
  343. #define NS_ALG_MD5RSA 1 /* MD5 with RSA */
  344. #define NS_ALG_DH 2 /* Diffie Hellman KEY */
  345. #define NS_ALG_DSA 3 /* DSA KEY */
  346. #define NS_ALG_DSS NS_ALG_DSA
  347. #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */
  348. #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */
  349. /* Protocol values */
  350. /* value 0 is reserved */
  351. #define NS_KEY_PROT_TLS 1
  352. #define NS_KEY_PROT_EMAIL 2
  353. #define NS_KEY_PROT_DNSSEC 3
  354. #define NS_KEY_PROT_IPSEC 4
  355. #define NS_KEY_PROT_ANY 255
  356. /* Signatures */
  357. #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */
  358. #define NS_MD5RSA_MAX_BITS 2552
  359. /* Total of binary mod and exp */
  360. #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
  361. /* Max length of text sig block */
  362. #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
  363. #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
  364. #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
  365. #define NS_DSA_SIG_SIZE 41
  366. #define NS_DSA_MIN_SIZE 213
  367. #define NS_DSA_MAX_BYTES 405
  368. /* Offsets into SIG record rdata to find various values */
  369. #define NS_SIG_TYPE 0 /* Type flags */
  370. #define NS_SIG_ALG 2 /* Algorithm */
  371. #define NS_SIG_LABELS 3 /* How many labels in name */
  372. #define NS_SIG_OTTL 4 /* Original TTL */
  373. #define NS_SIG_EXPIR 8 /* Expiration time */
  374. #define NS_SIG_SIGNED 12 /* Signature time */
  375. #define NS_SIG_FOOT 16 /* Key footprint */
  376. #define NS_SIG_SIGNER 18 /* Domain name of who signed it */
  377. /* How RR types are represented as bit-flags in NXT records */
  378. #define NS_NXT_BITS 8
  379. #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
  380. #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
  381. #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
  382. #define NS_NXT_MAX 127
  383. /*
  384. * Inline versions of get/put short/long. Pointer is advanced.
  385. */
  386. #define NS_GET16(s, cp) do { \
  387. register u_char *t_cp = (u_char *)(cp); \
  388. (s) = ((u_int16_t)t_cp[0] << 8) \
  389. | ((u_int16_t)t_cp[1]) \
  390. ; \
  391. (cp) += NS_INT16SZ; \
  392. } while (0)
  393. #define NS_GET32(l, cp) do { \
  394. register u_char *t_cp = (u_char *)(cp); \
  395. (l) = ((u_int32_t)t_cp[0] << 24) \
  396. | ((u_int32_t)t_cp[1] << 16) \
  397. | ((u_int32_t)t_cp[2] << 8) \
  398. | ((u_int32_t)t_cp[3]) \
  399. ; \
  400. (cp) += NS_INT32SZ; \
  401. } while (0)
  402. #define NS_PUT16(s, cp) do { \
  403. register u_int16_t t_s = (u_int16_t)(s); \
  404. register u_char *t_cp = (u_char *)(cp); \
  405. *t_cp++ = t_s >> 8; \
  406. *t_cp = t_s; \
  407. (cp) += NS_INT16SZ; \
  408. } while (0)
  409. #define NS_PUT32(l, cp) do { \
  410. register u_int32_t t_l = (u_int32_t)(l); \
  411. register u_char *t_cp = (u_char *)(cp); \
  412. *t_cp++ = t_l >> 24; \
  413. *t_cp++ = t_l >> 16; \
  414. *t_cp++ = t_l >> 8; \
  415. *t_cp = t_l; \
  416. (cp) += NS_INT32SZ; \
  417. } while (0)
  418. /*
  419. * ANSI C identifier hiding for bind's lib/nameser.
  420. */
  421. #define ns_get16 __ns_get16
  422. #define ns_get32 __ns_get32
  423. #define ns_put16 __ns_put16
  424. #define ns_put32 __ns_put32
  425. #define ns_initparse __ns_initparse
  426. #define ns_skiprr __ns_skiprr
  427. #define ns_parserr __ns_parserr
  428. #define ns_sprintrr __ns_sprintrr
  429. #define ns_sprintrrf __ns_sprintrrf
  430. #define ns_format_ttl __ns_format_ttl
  431. #define ns_parse_ttl __ns_parse_ttl
  432. #define ns_datetosecs __ns_datetosecs
  433. #define ns_name_ntol __ns_name_ntol
  434. #define ns_name_ntop __ns_name_ntop
  435. #define ns_name_pton __ns_name_pton
  436. #define ns_name_unpack __ns_name_unpack
  437. #define ns_name_pack __ns_name_pack
  438. #define ns_name_compress __ns_name_compress
  439. #define ns_name_uncompress __ns_name_uncompress
  440. #define ns_name_skip __ns_name_skip
  441. #define ns_name_rollback __ns_name_rollback
  442. #define ns_sign __ns_sign
  443. #define ns_sign_tcp __ns_sign_tcp
  444. #define ns_sign_tcp_init __ns_sign_tcp_init
  445. #define ns_find_tsig __ns_find_tsig
  446. #define ns_verify __ns_verify
  447. #define ns_verify_tcp __ns_verify_tcp
  448. #define ns_verify_tcp_init __ns_verify_tcp_init
  449. #define ns_samedomain __ns_samedomain
  450. #define ns_subdomain __ns_subdomain
  451. #define ns_makecanon __ns_makecanon
  452. #define ns_samename __ns_samename
  453. __BEGIN_DECLS
  454. int ns_msg_getflag (ns_msg, int) __THROW;
  455. u_int ns_get16 (const u_char *) __THROW;
  456. u_long ns_get32 (const u_char *) __THROW;
  457. void ns_put16 (u_int, u_char *) __THROW;
  458. void ns_put32 (u_long, u_char *) __THROW;
  459. int ns_initparse (const u_char *, int, ns_msg *) __THROW;
  460. int ns_skiprr (const u_char *, const u_char *, ns_sect, int)
  461. __THROW;
  462. libc_hidden_proto(ns_skiprr)
  463. int ns_parserr (ns_msg *, ns_sect, int, ns_rr *) __THROW;
  464. int ns_sprintrr (const ns_msg *, const ns_rr *,
  465. const char *, const char *, char *, size_t)
  466. __THROW;
  467. int ns_sprintrrf (const u_char *, size_t, const char *,
  468. ns_class, ns_type, u_long, const u_char *,
  469. size_t, const char *, const char *,
  470. char *, size_t) __THROW;
  471. int ns_format_ttl (u_long, char *, size_t) __THROW;
  472. int ns_parse_ttl (const char *, u_long *) __THROW;
  473. u_int32_t ns_datetosecs (const char *cp, int *errp) __THROW;
  474. int ns_name_ntol (const u_char *, u_char *, size_t) __THROW;
  475. int ns_name_ntop (const u_char *, char *, size_t) __THROW;
  476. libc_hidden_proto(ns_name_ntop)
  477. int ns_name_pton (const char *, u_char *, size_t) __THROW;
  478. libc_hidden_proto(ns_name_pton)
  479. int ns_name_unpack (const u_char *, const u_char *,
  480. const u_char *, u_char *, size_t) __THROW;
  481. libc_hidden_proto(ns_name_unpack)
  482. int ns_name_pack (const u_char *, u_char *, int,
  483. const u_char **, const u_char **) __THROW;
  484. libc_hidden_proto(ns_name_pack)
  485. int ns_name_uncompress (const u_char *, const u_char *,
  486. const u_char *, char *, size_t) __THROW;
  487. libc_hidden_proto(ns_name_uncompress)
  488. int ns_name_compress (const char *, u_char *, size_t,
  489. const u_char **, const u_char **) __THROW;
  490. libc_hidden_proto(ns_name_compress)
  491. int ns_name_skip (const u_char **, const u_char *) __THROW;
  492. libc_hidden_proto(ns_name_skip)
  493. void ns_name_rollback (const u_char *, const u_char **,
  494. const u_char **) __THROW;
  495. int ns_sign (u_char *, int *, int, int, void *,
  496. const u_char *, int, u_char *, int *, time_t) __THROW;
  497. int ns_sign_tcp (u_char *, int *, int, int,
  498. ns_tcp_tsig_state *, int) __THROW;
  499. int ns_sign_tcp_init (void *, const u_char *, int,
  500. ns_tcp_tsig_state *) __THROW;
  501. u_char *ns_find_tsig (u_char *, u_char *) __THROW;
  502. int ns_verify (u_char *, int *, void *, const u_char *, int,
  503. u_char *, int *, time_t *, int) __THROW;
  504. int ns_verify_tcp (u_char *, int *, ns_tcp_tsig_state *, int)
  505. __THROW;
  506. int ns_verify_tcp_init (void *, const u_char *, int,
  507. ns_tcp_tsig_state *) __THROW;
  508. int ns_samedomain (const char *, const char *) __THROW;
  509. int ns_subdomain (const char *, const char *) __THROW;
  510. int ns_makecanon (const char *, char *, size_t) __THROW;
  511. int ns_samename (const char *, const char *) __THROW;
  512. __END_DECLS
  513. #ifdef BIND_4_COMPAT
  514. #include <arpa/nameser_compat.h>
  515. #endif
  516. #endif /* !_ARPA_NAMESER_H_ */