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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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 /*
35 * Copyright (c) 1996-1999 by Internet Software Consortium.
36 *
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies.
40 *
41 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
42 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
44 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
45 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
46 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
47 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
48 * SOFTWARE.
49 */
50
51 /*
52 * $Id: nameser.h,v 1.2.2.4 2003/06/27 03:51:37 marka Exp $
53 */
54
55 #ifndef REPLACE_ARPA_NAMESER_H_
56 #define REPLACE_ARPA_NAMESER_H_
57
58 #ifndef __P
59 # define __P(x) x
60 #endif
61
62 #if defined( HAVE_ARPA_NAMESER_H ) && defined( HAVE_NS_TYPE )
63 #define dn_expand __dn_expand
64 int dn_expand __P((const u_char *, const u_char *, const u_char *,
65 char *, int));
66 #endif
67 #define dn_skipname __dn_skipname
68 int dn_skipname __P((const u_char *, const u_char *));
69
70 #include <sys/param.h>
71 #ifdef HAVE_SYS_TYPES_H
72 #include <sys/types.h> /* types (u_char .. etc..) */
73 #endif
74
75 #ifdef HAVE_INTTYPES_H
76 #include <inttypes.h>
77 #endif
78
79 #ifndef HAVE_U_INT8_T
80 # ifdef HAVE_UINT8_T
81 typedef uint8_t u_int8_t;
82 # else
83 typedef unsigned char u_int8_t;
84 # endif
85 #endif
86
87 #ifndef HAVE_U_INT16_T
88 # ifdef HAVE_UINT16_T
89 typedef uint16_t u_int16_t;
90 # else
91 typedef unsigned short u_int16_t;
92 # endif
93 #endif
94
95 #ifndef HAVE_U_INT32_T
96 # ifdef HAVE_UINT32_T
97 typedef uint32_t u_int32_t;
98 # else
99 typedef unsigned int u_int32_t;
100 # endif
101 #endif
102
103
104 #if 0
105 #if (!defined(BSD)) || (BSD < 199306)
106 # include <sys/bitypes.h>
107 #else
108 # include <sys/types.h>
109 #endif
110 #include <sys/cdefs.h>
111 #endif
112
113 /*
114 * Revision information. This is the release date in YYYYMMDD format.
115 * It can change every day so the right thing to do with it is use it
116 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
117 * compare for equality; rather, use it to determine whether your libbind.a
118 * contains a new enough lib/nameser/ to support the feature you need.
119 */
120
121 #define __NAMESER 19991006 /* New interface version stamp. */
122
123 /*
124 * Define constants based on RFC 883, RFC 1034, RFC 1035
125 */
126 #define NS_PACKETSZ 512 /* default UDP packet size */
127 #define NS_MAXDNAME 1025 /* maximum domain name */
128 #define NS_MAXMSG 65535 /* maximum message size */
129 #define NS_MAXCDNAME 255 /* maximum compressed domain name */
130 #define NS_MAXLABEL 63 /* maximum length of domain label */
131 #define NS_HFIXEDSZ 12 /* #/bytes of fixed data in header */
132 #define NS_QFIXEDSZ 4 /* #/bytes of fixed data in query */
133 #define NS_RRFIXEDSZ 10 /* #/bytes of fixed data in r record */
134 #define NS_INT32SZ 4 /* #/bytes of data in a u_int32_t */
135 #define NS_INT16SZ 2 /* #/bytes of data in a u_int16_t */
136 #define NS_INT8SZ 1 /* #/bytes of data in a u_int8_t */
137 #define NS_INADDRSZ 4 /* IPv4 T_A */
138 #define NS_IN6ADDRSZ 16 /* IPv6 T_AAAA */
139 #define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
140 #define NS_DEFAULTPORT 53 /* For both TCP and UDP. */
141
142 /*
143 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
144 * in synch with it.
145 */
146 typedef enum __ns_sect {
147 ns_s_qd = 0, /* Query: Question. */
148 ns_s_zn = 0, /* Update: Zone. */
149 ns_s_an = 1, /* Query: Answer. */
150 ns_s_pr = 1, /* Update: Prerequisites. */
151 ns_s_ns = 2, /* Query: Name servers. */
152 ns_s_ud = 2, /* Update: Update. */
153 ns_s_ar = 3, /* Query|Update: Additional records. */
154 ns_s_max = 4
155 } ns_sect;
156
157 /*
158 * This is a message handle. It is caller allocated and has no dynamic data.
159 * This structure is intended to be opaque to all but ns_parse.c, thus the
160 * leading _'s on the member names. Use the accessor functions, not the _'s.
161 */
162 typedef struct __ns_msg {
163 const u_char *_msg, *_eom;
164 u_int16_t _id, _flags, _counts[ns_s_max];
165 const u_char *_sections[ns_s_max];
166 ns_sect _sect;
167 int _rrnum;
168 const u_char *_msg_ptr;
169 } ns_msg;
170
171 /* Private data structure - do not use from outside library. */
172 struct _ns_flagdata { int mask, shift; };
173 extern struct _ns_flagdata _ns_flagdata[];
174
175 /* Accessor macros - this is part of the public interface. */
176
177 #define ns_msg_id(handle) ((handle)._id + 0)
178 #define ns_msg_base(handle) ((handle)._msg + 0)
179 #define ns_msg_end(handle) ((handle)._eom + 0)
180 #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
181 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
182
183 /*
184 * This is a parsed record. It is caller allocated and has no dynamic data.
185 */
186 typedef struct __ns_rr {
187 char name[NS_MAXDNAME];
188 u_int16_t type;
189 u_int16_t rr_class;
190 u_int32_t ttl;
191 u_int16_t rdlength;
192 const u_char * rdata;
193 } ns_rr;
194
195 /* Accessor macros - this is part of the public interface. */
196 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
197 #define ns_rr_type(rr) ((ns_type)((rr).type + 0))
198 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
199 #define ns_rr_ttl(rr) ((rr).ttl + 0)
200 #define ns_rr_rdlen(rr) ((rr).rdlength + 0)
201 #define ns_rr_rdata(rr) ((rr).rdata + 0)
202
203 /*
204 * These don't have to be in the same order as in the packet flags word,
205 * and they can even overlap in some cases, but they will need to be kept
206 * in synch with ns_parse.c:ns_flagdata[].
207 */
208 typedef enum __ns_flag {
209 ns_f_qr, /* Question/Response. */
210 ns_f_opcode, /* Operation code. */
211 ns_f_aa, /* Authoritative Answer. */
212 ns_f_tc, /* Truncation occurred. */
213 ns_f_rd, /* Recursion Desired. */
214 ns_f_ra, /* Recursion Available. */
215 ns_f_z, /* MBZ. */
216 ns_f_ad, /* Authentic Data (DNSSEC). */
217 ns_f_cd, /* Checking Disabled (DNSSEC). */
218 ns_f_rcode, /* Response code. */
219 ns_f_max
220 } ns_flag;
221
222 /*
223 * Currently defined opcodes.
224 */
225 typedef enum __ns_opcode {
226 ns_o_query = 0, /* Standard query. */
227 ns_o_iquery = 1, /* Inverse query (deprecated/unsupported). */
228 ns_o_status = 2, /* Name server status query (unsupported). */
229 /* Opcode 3 is undefined/reserved. */
230 ns_o_notify = 4, /* Zone change notification. */
231 ns_o_update = 5, /* Zone update message. */
232 ns_o_max = 6
233 } ns_opcode;
234
235 /*
236 * Currently defined response codes.
237 */
238 typedef enum __ns_rcode {
239 ns_r_noerror = 0, /* No error occurred. */
240 ns_r_formerr = 1, /* Format error. */
241 ns_r_servfail = 2, /* Server failure. */
242 ns_r_nxdomain = 3, /* Name error. */
243 ns_r_notimpl = 4, /* Unimplemented. */
244 ns_r_refused = 5, /* Operation refused. */
245 /* these are for BIND_UPDATE */
246 ns_r_yxdomain = 6, /* Name exists */
247 ns_r_yxrrset = 7, /* RRset exists */
248 ns_r_nxrrset = 8, /* RRset does not exist */
249 ns_r_notauth = 9, /* Not authoritative for zone */
250 ns_r_notzone = 10, /* Zone of record different from zone section */
251 ns_r_max = 11,
252 /* The following are EDNS extended rcodes */
253 ns_r_badvers = 16,
254 /* The following are TSIG errors */
255 ns_r_badsig = 16,
256 ns_r_badkey = 17,
257 ns_r_badtime = 18
258 } ns_rcode;
259
260 /* BIND_UPDATE */
261 typedef enum __ns_update_operation {
262 ns_uop_delete = 0,
263 ns_uop_add = 1,
264 ns_uop_max = 2
265 } ns_update_operation;
266
267 /*
268 * This structure is used for TSIG authenticated messages
269 */
270 struct ns_tsig_key {
271 char name[NS_MAXDNAME], alg[NS_MAXDNAME];
272 unsigned char *data;
273 int len;
274 };
275 typedef struct ns_tsig_key ns_tsig_key;
276
277 /*
278 * This structure is used for TSIG authenticated TCP messages
279 */
280 struct ns_tcp_tsig_state {
281 int counter;
282 struct dst_key *key;
283 void *ctx;
284 unsigned char sig[NS_PACKETSZ];
285 int siglen;
286 };
287 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
288
289 #define NS_TSIG_FUDGE 300
290 #define NS_TSIG_TCP_COUNT 100
291 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
292
293 #define NS_TSIG_ERROR_NO_TSIG -10
294 #define NS_TSIG_ERROR_NO_SPACE -11
295 #define NS_TSIG_ERROR_FORMERR -12
296
297 /*
298 * Currently defined type values for resources and queries.
299 */
300 typedef enum __ns_type {
301 ns_t_invalid = 0, /* Cookie. */
302 ns_t_a = 1, /* Host address. */
303 ns_t_ns = 2, /* Authoritative server. */
304 ns_t_md = 3, /* Mail destination. */
305 ns_t_mf = 4, /* Mail forwarder. */
306 ns_t_cname = 5, /* Canonical name. */
307 ns_t_soa = 6, /* Start of authority zone. */
308 ns_t_mb = 7, /* Mailbox domain name. */
309 ns_t_mg = 8, /* Mail group member. */
310 ns_t_mr = 9, /* Mail rename name. */
311 ns_t_null = 10, /* Null resource record. */
312 ns_t_wks = 11, /* Well known service. */
313 ns_t_ptr = 12, /* Domain name pointer. */
314 ns_t_hinfo = 13, /* Host information. */
315 ns_t_minfo = 14, /* Mailbox information. */
316 ns_t_mx = 15, /* Mail routing information. */
317 ns_t_txt = 16, /* Text strings. */
318 ns_t_rp = 17, /* Responsible person. */
319 ns_t_afsdb = 18, /* AFS cell database. */
320 ns_t_x25 = 19, /* X_25 calling address. */
321 ns_t_isdn = 20, /* ISDN calling address. */
322 ns_t_rt = 21, /* Router. */
323 ns_t_nsap = 22, /* NSAP address. */
324 ns_t_nsap_ptr = 23, /* Reverse NSAP lookup (deprecated). */
325 ns_t_sig = 24, /* Security signature. */
326 ns_t_key = 25, /* Security key. */
327 ns_t_px = 26, /* X.400 mail mapping. */
328 ns_t_gpos = 27, /* Geographical position (withdrawn). */
329 ns_t_aaaa = 28, /* Ip6 Address. */
330 ns_t_loc = 29, /* Location Information. */
331 ns_t_nxt = 30, /* Next domain (security). */
332 ns_t_eid = 31, /* Endpoint identifier. */
333 ns_t_nimloc = 32, /* Nimrod Locator. */
334 ns_t_srv = 33, /* Server Selection. */
335 ns_t_atma = 34, /* ATM Address */
336 ns_t_naptr = 35, /* Naming Authority PoinTeR */
337 ns_t_kx = 36, /* Key Exchange */
338 ns_t_cert = 37, /* Certification record */
339 ns_t_a6 = 38, /* IPv6 address (deprecates AAAA) */
340 ns_t_dname = 39, /* Non-terminal DNAME (for IPv6) */
341 ns_t_sink = 40, /* Kitchen sink (experimentatl) */
342 ns_t_opt = 41, /* EDNS0 option (meta-RR) */
343 ns_t_apl = 42, /* Address prefix list (RFC 3123) */
344 ns_t_tkey = 249, /* Transaction key */
345 ns_t_tsig = 250, /* Transaction signature. */
346 ns_t_ixfr = 251, /* Incremental zone transfer. */
347 ns_t_axfr = 252, /* Transfer zone of authority. */
348 ns_t_mailb = 253, /* Transfer mailbox records. */
349 ns_t_maila = 254, /* Transfer mail agent records. */
350 ns_t_any = 255, /* Wildcard match. */
351 ns_t_zxfr = 256, /* BIND-specific, nonstandard. */
352 ns_t_max = 65536
353 } ns_type;
354
355 /* Exclusively a QTYPE? (not also an RTYPE) */
356 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
357 (t) == ns_t_mailb || (t) == ns_t_maila)
358 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
359 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
360 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
361 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
362 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
363 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
364 (t) == ns_t_zxfr)
365
366 /*
367 * Values for class field
368 */
369 typedef enum __ns_class {
370 ns_c_invalid = 0, /* Cookie. */
371 ns_c_in = 1, /* Internet. */
372 ns_c_2 = 2, /* unallocated/unsupported. */
373 ns_c_chaos = 3, /* MIT Chaos-net. */
374 ns_c_hs = 4, /* MIT Hesiod. */
375 /* Query class values which do not appear in resource records */
376 ns_c_none = 254, /* for prereq. sections in update requests */
377 ns_c_any = 255, /* Wildcard match. */
378 ns_c_max = 65536
379 } ns_class;
380
381 /* DNSSEC constants. */
382
383 typedef enum __ns_key_types {
384 ns_kt_rsa = 1, /* key type RSA/MD5 */
385 ns_kt_dh = 2, /* Diffie Hellman */
386 ns_kt_dsa = 3, /* Digital Signature Standard (MANDATORY) */
387 ns_kt_private = 254 /* Private key type starts with OID */
388 } ns_key_types;
389
390 typedef enum __ns_cert_types {
391 cert_t_pkix = 1, /* PKIX (X.509v3) */
392 cert_t_spki = 2, /* SPKI */
393 cert_t_pgp = 3, /* PGP */
394 cert_t_url = 253, /* URL private type */
395 cert_t_oid = 254 /* OID private type */
396 } ns_cert_types;
397
398 /* Flags field of the KEY RR rdata. */
399 #define NS_KEY_TYPEMASK 0xC000 /* Mask for "type" bits */
400 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /* Key usable for both */
401 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /* Key usable for confidentiality */
402 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /* Key usable for authentication */
403 #define NS_KEY_TYPE_NO_KEY 0xC000 /* No key usable for either; no key */
404 /* The type bits can also be interpreted independently, as single bits: */
405 #define NS_KEY_NO_AUTH 0x8000 /* Key unusable for authentication */
406 #define NS_KEY_NO_CONF 0x4000 /* Key unusable for confidentiality */
407 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
408 #define NS_KEY_EXTENDED_FLAGS 0x1000 /* reserved - must be zero */
409 #define NS_KEY_RESERVED4 0x0800 /* reserved - must be zero */
410 #define NS_KEY_RESERVED5 0x0400 /* reserved - must be zero */
411 #define NS_KEY_NAME_TYPE 0x0300 /* these bits determine the type */
412 #define NS_KEY_NAME_USER 0x0000 /* key is assoc. with user */
413 #define NS_KEY_NAME_ENTITY 0x0200 /* key is assoc. with entity eg host */
414 #define NS_KEY_NAME_ZONE 0x0100 /* key is zone key */
415 #define NS_KEY_NAME_RESERVED 0x0300 /* reserved meaning */
416 #define NS_KEY_RESERVED8 0x0080 /* reserved - must be zero */
417 #define NS_KEY_RESERVED9 0x0040 /* reserved - must be zero */
418 #define NS_KEY_RESERVED10 0x0020 /* reserved - must be zero */
419 #define NS_KEY_RESERVED11 0x0010 /* reserved - must be zero */
420 #define NS_KEY_SIGNATORYMASK 0x000F /* key can sign RR's of same name */
421 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
422 NS_KEY_RESERVED4 | \
423 NS_KEY_RESERVED5 | \
424 NS_KEY_RESERVED8 | \
425 NS_KEY_RESERVED9 | \
426 NS_KEY_RESERVED10 | \
427 NS_KEY_RESERVED11 )
428 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
429
430 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
431 #define NS_ALG_MD5RSA 1 /* MD5 with RSA */
432 #define NS_ALG_DH 2 /* Diffie Hellman KEY */
433 #define NS_ALG_DSA 3 /* DSA KEY */
434 #define NS_ALG_DSS NS_ALG_DSA
435 #define NS_ALG_EXPIRE_ONLY 253 /* No alg, no security */
436 #define NS_ALG_PRIVATE_OID 254 /* Key begins with OID giving alg */
437
438 /* Protocol values */
439 /* value 0 is reserved */
440 #define NS_KEY_PROT_TLS 1
441 #define NS_KEY_PROT_EMAIL 2
442 #define NS_KEY_PROT_DNSSEC 3
443 #define NS_KEY_PROT_IPSEC 4
444 #define NS_KEY_PROT_ANY 255
445
446 /* Signatures */
447 #define NS_MD5RSA_MIN_BITS 512 /* Size of a mod or exp in bits */
448 #define NS_MD5RSA_MAX_BITS 4096
449 /* Total of binary mod and exp */
450 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
451 /* Max length of text sig block */
452 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
453 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
454 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
455
456 #define NS_DSA_SIG_SIZE 41
457 #define NS_DSA_MIN_SIZE 213
458 #define NS_DSA_MAX_BYTES 405
459
460 /* Offsets into SIG record rdata to find various values */
461 #define NS_SIG_TYPE 0 /* Type flags */
462 #define NS_SIG_ALG 2 /* Algorithm */
463 #define NS_SIG_LABELS 3 /* How many labels in name */
464 #define NS_SIG_OTTL 4 /* Original TTL */
465 #define NS_SIG_EXPIR 8 /* Expiration time */
466 #define NS_SIG_SIGNED 12 /* Signature time */
467 #define NS_SIG_FOOT 16 /* Key footprint */
468 #define NS_SIG_SIGNER 18 /* Domain name of who signed it */
469
470 /* How RR types are represented as bit-flags in NXT records */
471 #define NS_NXT_BITS 8
472 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
473 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
474 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
475 #define NS_NXT_MAX 127
476
477 /*
478 * EDNS0 extended flags, host order.
479 */
480 #define NS_OPT_DNSSEC_OK 0x8000U
481
482 /*
483 * Inline versions of get/put short/long. Pointer is advanced.
484 */
485 #define NS_GET16(s, cp) do { \
486 register const u_char *t_cp = (const u_char *)(cp); \
487 (s) = ((u_int16_t)t_cp[0] << 8) \
488 | ((u_int16_t)t_cp[1]) \
489 ; \
490 (cp) += NS_INT16SZ; \
491 } while (0)
492
493 #define NS_GET32(l, cp) do { \
494 register const u_char *t_cp = (const u_char *)(cp); \
495 (l) = ((u_int32_t)t_cp[0] << 24) \
496 | ((u_int32_t)t_cp[1] << 16) \
497 | ((u_int32_t)t_cp[2] << 8) \
498 | ((u_int32_t)t_cp[3]) \
499 ; \
500 (cp) += NS_INT32SZ; \
501 } while (0)
502
503 #define NS_PUT16(s, cp) do { \
504 register u_int16_t t_s = (u_int16_t)(s); \
505 register u_char *t_cp = (u_char *)(cp); \
506 *t_cp++ = t_s >> 8; \
507 *t_cp = t_s; \
508 (cp) += NS_INT16SZ; \
509 } while (0)
510
511 #define NS_PUT32(l, cp) do { \
512 register u_int32_t t_l = (u_int32_t)(l); \
513 register u_char *t_cp = (u_char *)(cp); \
514 *t_cp++ = t_l >> 24; \
515 *t_cp++ = t_l >> 16; \
516 *t_cp++ = t_l >> 8; \
517 *t_cp = t_l; \
518 (cp) += NS_INT32SZ; \
519 } while (0)
520
521 /*
522 * ANSI C identifier hiding for bind's lib/nameser.
523 */
524 #define ns_msg_getflag __ns_msg_getflag
525 #define ns_get16 __ns_get16
526 #define ns_get32 __ns_get32
527 #define ns_put16 __ns_put16
528 #define ns_put32 __ns_put32
529 #define ns_initparse __ns_initparse
530 #define ns_skiprr __ns_skiprr
531 #define ns_parserr __ns_parserr
532 #define ns_sprintrr __ns_sprintrr
533 #define ns_sprintrrf __ns_sprintrrf
534 #define ns_format_ttl __ns_format_ttl
535 #define ns_parse_ttl __ns_parse_ttl
536 #define ns_datetosecs __ns_datetosecs
537 #define ns_name_ntol __ns_name_ntol
538 #define ns_name_ntop __ns_name_ntop
539 #define ns_name_pton __ns_name_pton
540 #define ns_name_unpack __ns_name_unpack
541 #define ns_name_pack __ns_name_pack
542 #define ns_name_compress __ns_name_compress
543 #define ns_name_uncompress __ns_name_uncompress
544 #define ns_name_skip __ns_name_skip
545 #define ns_name_rollback __ns_name_rollback
546 #define ns_sign __ns_sign
547 #define ns_sign2 __ns_sign2
548 #define ns_sign_tcp __ns_sign_tcp
549 #define ns_sign_tcp2 __ns_sign_tcp2
550 #define ns_sign_tcp_init __ns_sign_tcp_init
551 #define ns_find_tsig __ns_find_tsig
552 #define ns_verify __ns_verify
553 #define ns_verify_tcp __ns_verify_tcp
554 #define ns_verify_tcp_init __ns_verify_tcp_init
555 #define ns_samedomain __ns_samedomain
556 #define ns_subdomain __ns_subdomain
557 #define ns_makecanon __ns_makecanon
558 #define ns_samename __ns_samename
559
560
561 int ns_msg_getflag __P((ns_msg, int));
562 u_int ns_get16 __P((const u_char *));
563 u_long ns_get32 __P((const u_char *));
564 void ns_put16 __P((u_int, u_char *));
565 void ns_put32 __P((u_long, u_char *));
566 int ns_initparse __P((const u_char *, int, ns_msg *));
567 int ns_skiprr __P((const u_char *, const u_char *, ns_sect, int));
568 int ns_parserr __P((ns_msg *, ns_sect, int, ns_rr *));
569 int ns_sprintrr __P((const ns_msg *, const ns_rr *,
570 const char *, const char *, char *, size_t));
571 int ns_sprintrrf __P((const u_char *, size_t, const char *,
572 ns_class, ns_type, u_long, const u_char *,
573 size_t, const char *, const char *,
574 char *, size_t));
575 int ns_format_ttl __P((u_long, char *, size_t));
576 int ns_parse_ttl __P((const char *, u_long *));
577 u_int32_t ns_datetosecs __P((const char *cp, int *errp));
578 int ns_name_ntol __P((const u_char *, u_char *, size_t));
579 int ns_name_ntop __P((const u_char *, char *, size_t));
580 int ns_name_pton __P((const char *, u_char *, size_t));
581 int ns_name_unpack __P((const u_char *, const u_char *,
582 const u_char *, u_char *, size_t));
583 int ns_name_pack __P((const u_char *, u_char *, int,
584 const u_char **, const u_char **));
585 int ns_name_uncompress __P((const u_char *, const u_char *,
586 const u_char *, char *, size_t));
587 int ns_name_compress __P((const char *, u_char *, size_t,
588 const u_char **, const u_char **));
589 int ns_name_skip __P((const u_char **, const u_char *));
590 void ns_name_rollback __P((const u_char *, const u_char **,
591 const u_char **));
592 int ns_sign __P((u_char *, int *, int, int, void *,
593 const u_char *, int, u_char *, int *, time_t));
594 int ns_sign2 __P((u_char *, int *, int, int, void *,
595 const u_char *, int, u_char *, int *, time_t,
596 u_char **, u_char **));
597 int ns_sign_tcp __P((u_char *, int *, int, int,
598 ns_tcp_tsig_state *, int));
599 int ns_sign_tcp2 __P((u_char *, int *, int, int,
600 ns_tcp_tsig_state *, int,
601 u_char **, u_char **));
602 int ns_sign_tcp_init __P((void *, const u_char *, int,
603 ns_tcp_tsig_state *));
604 u_char *ns_find_tsig __P((u_char *, u_char *));
605 int ns_verify __P((u_char *, int *, void *,
606 const u_char *, int, u_char *, int *,
607 time_t *, int));
608 int ns_verify_tcp __P((u_char *, int *, ns_tcp_tsig_state *, int));
609 int ns_verify_tcp_init __P((void *, const u_char *, int,
610 ns_tcp_tsig_state *));
611 int ns_samedomain __P((const char *, const char *));
612 int ns_subdomain __P((const char *, const char *));
613 int ns_makecanon __P((const char *, char *, size_t));
614 int ns_samename __P((const char *, const char *));
615
616
617 #endif /* !REPLACE_ARPA_NAMESER_H_ */