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48 * $Id: nameser.h,v 1.16 2009/03/03 01:52:48 each Exp $
52 #ifndef _ARPA_NAMESER_H_
53 #define _ARPA_NAMESER_H_
59 #include <sys/param.h>
60 #include <sys/types.h>
61 #include <sys/cdefs.h>
64 * Revision information. This is the release date in YYYYMMDD format.
65 * It can change every day so the right thing to do with it is use it
66 * in preprocessor commands such as "#if (__NAMESER > 19931104)". Do not
67 * compare for equality; rather, use it to determine whether your libbind.a
68 * contains a new enough lib/nameser/ to support the feature you need.
71 #define __NAMESER 20090302 /*%< New interface version stamp. */
73 * Define constants based on RFC0883, RFC1034, RFC 1035
75 #define NS_PACKETSZ 512 /*%< default UDP packet size */
76 #define NS_MAXDNAME 1025 /*%< maximum domain name (presentation format)*/
77 #define NS_MAXMSG 65535 /*%< maximum message size */
78 #define NS_MAXCDNAME 255 /*%< maximum compressed domain name */
79 #define NS_MAXLABEL 63 /*%< maximum length of domain label */
80 #define NS_MAXLABELS 128 /*%< theoretical max #/labels per domain name */
81 #define NS_MAXNNAME 256 /*%< maximum uncompressed (binary) domain name*/
82 #define NS_MAXPADDR (sizeof "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")
83 #define NS_HFIXEDSZ 12 /*%< #/bytes of fixed data in header */
84 #define NS_QFIXEDSZ 4 /*%< #/bytes of fixed data in query */
85 #define NS_RRFIXEDSZ 10 /*%< #/bytes of fixed data in r record */
86 #define NS_INT32SZ 4 /*%< #/bytes of data in a u_int32_t */
87 #define NS_INT16SZ 2 /*%< #/bytes of data in a u_int16_t */
88 #define NS_INT8SZ 1 /*%< #/bytes of data in a u_int8_t */
89 #define NS_INADDRSZ 4 /*%< IPv4 T_A */
90 #define NS_IN6ADDRSZ 16 /*%< IPv6 T_AAAA */
91 #define NS_CMPRSFLGS 0xc0 /*%< Flag bits indicating name compression. */
92 #define NS_DEFAULTPORT 53 /*%< For both TCP and UDP. */
94 * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
97 typedef enum __ns_sect {
98 ns_s_qd = 0, /*%< Query: Question. */
99 ns_s_zn = 0, /*%< Update: Zone. */
100 ns_s_an = 1, /*%< Query: Answer. */
101 ns_s_pr = 1, /*%< Update: Prerequisites. */
102 ns_s_ns = 2, /*%< Query: Name servers. */
103 ns_s_ud = 2, /*%< Update: Update. */
104 ns_s_ar = 3, /*%< Query|Update: Additional records. */
109 * Network name (compressed or not) type. Equivilent to a pointer when used
110 * in a function prototype. Can be const'd.
112 typedef u_char ns_nname[NS_MAXNNAME];
113 typedef const u_char *ns_nname_ct;
114 typedef u_char *ns_nname_t;
116 struct ns_namemap { ns_nname_ct base; int len; };
117 typedef struct ns_namemap *ns_namemap_t;
118 typedef const struct ns_namemap *ns_namemap_ct;
121 * This is a message handle. It is caller allocated and has no dynamic data.
122 * This structure is intended to be opaque to all but ns_parse.c, thus the
123 * leading _'s on the member names. Use the accessor functions, not the _'s.
125 typedef struct __ns_msg {
126 const u_char *_msg, *_eom;
127 u_int16_t _id, _flags, _counts[ns_s_max];
128 const u_char *_sections[ns_s_max];
131 const u_char *_msg_ptr;
135 * This is a newmsg handle, used when constructing new messages with
136 * ns_newmsg_init, et al.
140 const u_char *dnptrs[25];
141 const u_char **lastdnptr;
143 typedef struct ns_newmsg ns_newmsg;
145 /* Private data structure - do not use from outside library. */
146 struct _ns_flagdata { int mask, shift; };
147 extern struct _ns_flagdata _ns_flagdata[];
149 /* Accessor macros - this is part of the public interface. */
151 #define ns_msg_id(handle) ((handle)._id + 0)
152 #define ns_msg_base(handle) ((handle)._msg + 0)
153 #define ns_msg_end(handle) ((handle)._eom + 0)
154 #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
155 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
158 * This is a parsed record. It is caller allocated and has no dynamic data.
160 typedef struct __ns_rr {
161 char name[NS_MAXDNAME];
166 const u_char * rdata;
170 * Same thing, but using uncompressed network binary names, and real C types.
172 typedef struct __ns_rr2 {
179 const u_char * rdata;
182 /* Accessor macros - this is part of the public interface. */
183 #define ns_rr_name(rr) (((rr).name[0] != '\0') ? (rr).name : ".")
184 #define ns_rr_nname(rr) ((const ns_nname_t)(rr).nname)
185 #define ns_rr_nnamel(rr) ((rr).nnamel + 0)
186 #define ns_rr_type(rr) ((ns_type)((rr).type + 0))
187 #define ns_rr_class(rr) ((ns_class)((rr).rr_class + 0))
188 #define ns_rr_ttl(rr) ((rr).ttl + 0)
189 #define ns_rr_rdlen(rr) ((rr).rdlength + 0)
190 #define ns_rr_rdata(rr) ((rr).rdata + 0)
193 * These don't have to be in the same order as in the packet flags word,
194 * and they can even overlap in some cases, but they will need to be kept
195 * in synch with ns_parse.c:ns_flagdata[].
197 typedef enum __ns_flag {
198 ns_f_qr, /*%< Question/Response. */
199 ns_f_opcode, /*%< Operation code. */
200 ns_f_aa, /*%< Authoritative Answer. */
201 ns_f_tc, /*%< Truncation occurred. */
202 ns_f_rd, /*%< Recursion Desired. */
203 ns_f_ra, /*%< Recursion Available. */
205 ns_f_ad, /*%< Authentic Data (DNSSEC). */
206 ns_f_cd, /*%< Checking Disabled (DNSSEC). */
207 ns_f_rcode, /*%< Response code. */
212 * Currently defined opcodes.
214 typedef enum __ns_opcode {
215 ns_o_query = 0, /*%< Standard query. */
216 ns_o_iquery = 1, /*%< Inverse query (deprecated/unsupported). */
217 ns_o_status = 2, /*%< Name server status query (unsupported). */
218 /* Opcode 3 is undefined/reserved. */
219 ns_o_notify = 4, /*%< Zone change notification. */
220 ns_o_update = 5, /*%< Zone update message. */
225 * Currently defined response codes.
227 typedef enum __ns_rcode {
228 ns_r_noerror = 0, /*%< No error occurred. */
229 ns_r_formerr = 1, /*%< Format error. */
230 ns_r_servfail = 2, /*%< Server failure. */
231 ns_r_nxdomain = 3, /*%< Name error. */
232 ns_r_notimpl = 4, /*%< Unimplemented. */
233 ns_r_refused = 5, /*%< Operation refused. */
234 /* these are for BIND_UPDATE */
235 ns_r_yxdomain = 6, /*%< Name exists */
236 ns_r_yxrrset = 7, /*%< RRset exists */
237 ns_r_nxrrset = 8, /*%< RRset does not exist */
238 ns_r_notauth = 9, /*%< Not authoritative for zone */
239 ns_r_notzone = 10, /*%< Zone of record different from zone section */
241 /* The following are EDNS extended rcodes */
243 /* The following are TSIG errors */
250 typedef enum __ns_update_operation {
254 } ns_update_operation;
257 * This structure is used for TSIG authenticated messages
260 char name[NS_MAXDNAME], alg[NS_MAXDNAME];
264 typedef struct ns_tsig_key ns_tsig_key;
267 * This structure is used for TSIG authenticated TCP messages
269 struct ns_tcp_tsig_state {
273 unsigned char sig[NS_PACKETSZ];
276 typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
278 #define NS_TSIG_FUDGE 300
279 #define NS_TSIG_TCP_COUNT 100
280 #define NS_TSIG_ALG_HMAC_MD5 "HMAC-MD5.SIG-ALG.REG.INT"
282 #define NS_TSIG_ERROR_NO_TSIG -10
283 #define NS_TSIG_ERROR_NO_SPACE -11
284 #define NS_TSIG_ERROR_FORMERR -12
287 * Currently defined type values for resources and queries.
289 typedef enum __ns_type {
290 ns_t_invalid = 0, /*%< Cookie. */
291 ns_t_a = 1, /*%< Host address. */
292 ns_t_ns = 2, /*%< Authoritative server. */
293 ns_t_md = 3, /*%< Mail destination. */
294 ns_t_mf = 4, /*%< Mail forwarder. */
295 ns_t_cname = 5, /*%< Canonical name. */
296 ns_t_soa = 6, /*%< Start of authority zone. */
297 ns_t_mb = 7, /*%< Mailbox domain name. */
298 ns_t_mg = 8, /*%< Mail group member. */
299 ns_t_mr = 9, /*%< Mail rename name. */
300 ns_t_null = 10, /*%< Null resource record. */
301 ns_t_wks = 11, /*%< Well known service. */
302 ns_t_ptr = 12, /*%< Domain name pointer. */
303 ns_t_hinfo = 13, /*%< Host information. */
304 ns_t_minfo = 14, /*%< Mailbox information. */
305 ns_t_mx = 15, /*%< Mail routing information. */
306 ns_t_txt = 16, /*%< Text strings. */
307 ns_t_rp = 17, /*%< Responsible person. */
308 ns_t_afsdb = 18, /*%< AFS cell database. */
309 ns_t_x25 = 19, /*%< X_25 calling address. */
310 ns_t_isdn = 20, /*%< ISDN calling address. */
311 ns_t_rt = 21, /*%< Router. */
312 ns_t_nsap = 22, /*%< NSAP address. */
313 ns_t_nsap_ptr = 23, /*%< Reverse NSAP lookup (deprecated). */
314 ns_t_sig = 24, /*%< Security signature. */
315 ns_t_key = 25, /*%< Security key. */
316 ns_t_px = 26, /*%< X.400 mail mapping. */
317 ns_t_gpos = 27, /*%< Geographical position (withdrawn). */
318 ns_t_aaaa = 28, /*%< IPv6 Address. */
319 ns_t_loc = 29, /*%< Location Information. */
320 ns_t_nxt = 30, /*%< Next domain (security). */
321 ns_t_eid = 31, /*%< Endpoint identifier. */
322 ns_t_nimloc = 32, /*%< Nimrod Locator. */
323 ns_t_srv = 33, /*%< Server Selection. */
324 ns_t_atma = 34, /*%< ATM Address */
325 ns_t_naptr = 35, /*%< Naming Authority PoinTeR */
326 ns_t_kx = 36, /*%< Key Exchange */
327 ns_t_cert = 37, /*%< Certification record */
328 ns_t_a6 = 38, /*%< IPv6 address (experimental) */
329 ns_t_dname = 39, /*%< Non-terminal DNAME */
330 ns_t_sink = 40, /*%< Kitchen sink (experimentatl) */
331 ns_t_opt = 41, /*%< EDNS0 option (meta-RR) */
332 ns_t_apl = 42, /*%< Address prefix list (RFC3123) */
333 ns_t_ds = 43, /*%< Delegation Signer */
334 ns_t_sshfp = 44, /*%< SSH Fingerprint */
335 ns_t_ipseckey = 45, /*%< IPSEC Key */
336 ns_t_rrsig = 46, /*%< RRset Signature */
337 ns_t_nsec = 47, /*%< Negative security */
338 ns_t_dnskey = 48, /*%< DNS Key */
339 ns_t_dhcid = 49, /*%< Dynamic host configuratin identifier */
340 ns_t_nsec3 = 50, /*%< Negative security type 3 */
341 ns_t_nsec3param = 51, /*%< Negative security type 3 parameters */
342 ns_t_hip = 55, /*%< Host Identity Protocol */
343 ns_t_spf = 99, /*%< Sender Policy Framework */
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_dlv = 32769, /*%< DNSSEC look-aside validatation. */
356 /* Exclusively a QTYPE? (not also an RTYPE) */
357 #define ns_t_qt_p(t) (ns_t_xfr_p(t) || (t) == ns_t_any || \
358 (t) == ns_t_mailb || (t) == ns_t_maila)
359 /* Some kind of meta-RR? (not a QTYPE, but also not an RTYPE) */
360 #define ns_t_mrr_p(t) ((t) == ns_t_tsig || (t) == ns_t_opt)
361 /* Exclusively an RTYPE? (not also a QTYPE or a meta-RR) */
362 #define ns_t_rr_p(t) (!ns_t_qt_p(t) && !ns_t_mrr_p(t))
363 #define ns_t_udp_p(t) ((t) != ns_t_axfr && (t) != ns_t_zxfr)
364 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
368 * Values for class field
370 typedef enum __ns_class {
371 ns_c_invalid = 0, /*%< Cookie. */
372 ns_c_in = 1, /*%< Internet. */
373 ns_c_2 = 2, /*%< unallocated/unsupported. */
374 ns_c_chaos = 3, /*%< MIT Chaos-net. */
375 ns_c_hs = 4, /*%< MIT Hesiod. */
376 /* Query class values which do not appear in resource records */
377 ns_c_none = 254, /*%< for prereq. sections in update requests */
378 ns_c_any = 255, /*%< Wildcard match. */
382 /* DNSSEC constants. */
384 typedef enum __ns_key_types {
385 ns_kt_rsa = 1, /*%< key type RSA/MD5 */
386 ns_kt_dh = 2, /*%< Diffie Hellman */
387 ns_kt_dsa = 3, /*%< Digital Signature Standard (MANDATORY) */
388 ns_kt_private = 254 /*%< Private key type starts with OID */
391 typedef enum __ns_cert_types {
392 cert_t_pkix = 1, /*%< PKIX (X.509v3) */
393 cert_t_spki = 2, /*%< SPKI */
394 cert_t_pgp = 3, /*%< PGP */
395 cert_t_url = 253, /*%< URL private type */
396 cert_t_oid = 254 /*%< OID private type */
399 /* Flags field of the KEY RR rdata. */
400 #define NS_KEY_TYPEMASK 0xC000 /*%< Mask for "type" bits */
401 #define NS_KEY_TYPE_AUTH_CONF 0x0000 /*%< Key usable for both */
402 #define NS_KEY_TYPE_CONF_ONLY 0x8000 /*%< Key usable for confidentiality */
403 #define NS_KEY_TYPE_AUTH_ONLY 0x4000 /*%< Key usable for authentication */
404 #define NS_KEY_TYPE_NO_KEY 0xC000 /*%< No key usable for either; no key */
405 /* The type bits can also be interpreted independently, as single bits: */
406 #define NS_KEY_NO_AUTH 0x8000 /*%< Key unusable for authentication */
407 #define NS_KEY_NO_CONF 0x4000 /*%< Key unusable for confidentiality */
408 #define NS_KEY_RESERVED2 0x2000 /* Security is *mandatory* if bit=0 */
409 #define NS_KEY_EXTENDED_FLAGS 0x1000 /*%< reserved - must be zero */
410 #define NS_KEY_RESERVED4 0x0800 /*%< reserved - must be zero */
411 #define NS_KEY_RESERVED5 0x0400 /*%< reserved - must be zero */
412 #define NS_KEY_NAME_TYPE 0x0300 /*%< these bits determine the type */
413 #define NS_KEY_NAME_USER 0x0000 /*%< key is assoc. with user */
414 #define NS_KEY_NAME_ENTITY 0x0200 /*%< key is assoc. with entity eg host */
415 #define NS_KEY_NAME_ZONE 0x0100 /*%< key is zone key */
416 #define NS_KEY_NAME_RESERVED 0x0300 /*%< reserved meaning */
417 #define NS_KEY_RESERVED8 0x0080 /*%< reserved - must be zero */
418 #define NS_KEY_RESERVED9 0x0040 /*%< reserved - must be zero */
419 #define NS_KEY_RESERVED10 0x0020 /*%< reserved - must be zero */
420 #define NS_KEY_RESERVED11 0x0010 /*%< reserved - must be zero */
421 #define NS_KEY_SIGNATORYMASK 0x000F /*%< key can sign RR's of same name */
422 #define NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
427 NS_KEY_RESERVED10 | \
429 #define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */
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 /* Protocol values */
438 /* value 0 is reserved */
439 #define NS_KEY_PROT_TLS 1
440 #define NS_KEY_PROT_EMAIL 2
441 #define NS_KEY_PROT_DNSSEC 3
442 #define NS_KEY_PROT_IPSEC 4
443 #define NS_KEY_PROT_ANY 255
446 #define NS_MD5RSA_MIN_BITS 512 /*%< Size of a mod or exp in bits */
447 #define NS_MD5RSA_MAX_BITS 4096
448 /* Total of binary mod and exp */
449 #define NS_MD5RSA_MAX_BYTES ((NS_MD5RSA_MAX_BITS+7/8)*2+3)
450 /* Max length of text sig block */
451 #define NS_MD5RSA_MAX_BASE64 (((NS_MD5RSA_MAX_BYTES+2)/3)*4)
452 #define NS_MD5RSA_MIN_SIZE ((NS_MD5RSA_MIN_BITS+7)/8)
453 #define NS_MD5RSA_MAX_SIZE ((NS_MD5RSA_MAX_BITS+7)/8)
455 #define NS_DSA_SIG_SIZE 41
456 #define NS_DSA_MIN_SIZE 213
457 #define NS_DSA_MAX_BYTES 405
459 /* Offsets into SIG record rdata to find various values */
460 #define NS_SIG_TYPE 0 /*%< Type flags */
461 #define NS_SIG_ALG 2 /*%< Algorithm */
462 #define NS_SIG_LABELS 3 /*%< How many labels in name */
463 #define NS_SIG_OTTL 4 /*%< Original TTL */
464 #define NS_SIG_EXPIR 8 /*%< Expiration time */
465 #define NS_SIG_SIGNED 12 /*%< Signature time */
466 #define NS_SIG_FOOT 16 /*%< Key footprint */
467 #define NS_SIG_SIGNER 18 /*%< Domain name of who signed it */
468 /* How RR types are represented as bit-flags in NXT records */
469 #define NS_NXT_BITS 8
470 #define NS_NXT_BIT_SET( n,p) (p[(n)/NS_NXT_BITS] |= (0x80>>((n)%NS_NXT_BITS)))
471 #define NS_NXT_BIT_CLEAR(n,p) (p[(n)/NS_NXT_BITS] &= ~(0x80>>((n)%NS_NXT_BITS)))
472 #define NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] & (0x80>>((n)%NS_NXT_BITS)))
473 #define NS_NXT_MAX 127
476 * EDNS0 extended flags and option codes, host order.
478 #define NS_OPT_DNSSEC_OK 0x8000U
479 #define NS_OPT_NSID 3
482 * Inline versions of get/put short/long. Pointer is advanced.
484 #define NS_GET16(s, cp) do { \
485 register const u_char *t_cp = (const u_char *)(cp); \
486 (s) = ((u_int16_t)t_cp[0] << 8) \
487 | ((u_int16_t)t_cp[1]) \
489 (cp) += NS_INT16SZ; \
492 #define NS_GET32(l, cp) do { \
493 register const u_char *t_cp = (const u_char *)(cp); \
494 (l) = ((u_int32_t)t_cp[0] << 24) \
495 | ((u_int32_t)t_cp[1] << 16) \
496 | ((u_int32_t)t_cp[2] << 8) \
497 | ((u_int32_t)t_cp[3]) \
499 (cp) += NS_INT32SZ; \
502 #define NS_PUT16(s, cp) do { \
503 register u_int16_t t_s = (u_int16_t)(s); \
504 register u_char *t_cp = (u_char *)(cp); \
505 *t_cp++ = t_s >> 8; \
507 (cp) += NS_INT16SZ; \
510 #define NS_PUT32(l, cp) do { \
511 register u_int32_t t_l = (u_int32_t)(l); \
512 register u_char *t_cp = (u_char *)(cp); \
513 *t_cp++ = t_l >> 24; \
514 *t_cp++ = t_l >> 16; \
515 *t_cp++ = t_l >> 8; \
517 (cp) += NS_INT32SZ; \
521 * ANSI C identifier hiding for bind's lib/nameser.
523 #define ns_msg_getflag __ns_msg_getflag
524 #define ns_get16 __ns_get16
525 #define ns_get32 __ns_get32
526 #define ns_put16 __ns_put16
527 #define ns_put32 __ns_put32
528 #define ns_initparse __ns_initparse
529 #define ns_skiprr __ns_skiprr
530 #define ns_parserr __ns_parserr
531 #define ns_parserr2 __ns_parserr2
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
537 #define ns_datetosecs __ns_datetosecs
539 #define ns_name_ntol __ns_name_ntol
540 #define ns_name_ntop __ns_name_ntop
541 #define ns_name_pton __ns_name_pton
542 #define ns_name_pton2 __ns_name_pton2
543 #define ns_name_unpack __ns_name_unpack
544 #define ns_name_unpack2 __ns_name_unpack2
545 #define ns_name_pack __ns_name_pack
546 #define ns_name_compress __ns_name_compress
547 #define ns_name_uncompress __ns_name_uncompress
548 #define ns_name_skip __ns_name_skip
549 #define ns_name_rollback __ns_name_rollback
550 #define ns_name_length __ns_name_length
551 #define ns_name_eq __ns_name_eq
552 #define ns_name_owned __ns_name_owned
553 #define ns_name_map __ns_name_map
554 #define ns_name_labels __ns_name_labels
556 #define ns_sign __ns_sign
557 #define ns_sign2 __ns_sign2
558 #define ns_sign_tcp __ns_sign_tcp
559 #define ns_sign_tcp2 __ns_sign_tcp2
560 #define ns_sign_tcp_init __ns_sign_tcp_init
561 #define ns_find_tsig __ns_find_tsig
562 #define ns_verify __ns_verify
563 #define ns_verify_tcp __ns_verify_tcp
564 #define ns_verify_tcp_init __ns_verify_tcp_init
566 #define ns_samedomain __ns_samedomain
568 #define ns_subdomain __ns_subdomain
570 #define ns_makecanon __ns_makecanon
571 #define ns_samename __ns_samename
572 #define ns_newmsg_init __ns_newmsg_init
573 #define ns_newmsg_copy __ns_newmsg_copy
574 #define ns_newmsg_id __ns_newmsg_id
575 #define ns_newmsg_flag __ns_newmsg_flag
576 #define ns_newmsg_q __ns_newmsg_q
577 #define ns_newmsg_rr __ns_newmsg_rr
578 #define ns_newmsg_done __ns_newmsg_done
579 #define ns_rdata_unpack __ns_rdata_unpack
580 #define ns_rdata_equal __ns_rdata_equal
581 #define ns_rdata_refers __ns_rdata_refers
584 int ns_msg_getflag(ns_msg, int);
585 u_int ns_get16(const u_char *);
586 u_long ns_get32(const u_char *);
587 void ns_put16(u_int, u_char *);
588 void ns_put32(u_long, u_char *);
589 int ns_initparse(const u_char *, int, ns_msg *);
590 int ns_skiprr(const u_char *, const u_char *, ns_sect, int);
591 int ns_parserr(ns_msg *, ns_sect, int, ns_rr *);
592 int ns_parserr2(ns_msg *, ns_sect, int, ns_rr2 *);
593 int ns_sprintrr(const ns_msg *, const ns_rr *,
594 const char *, const char *, char *, size_t);
595 int ns_sprintrrf(const u_char *, size_t, const char *,
596 ns_class, ns_type, u_long, const u_char *,
597 size_t, const char *, const char *,
599 int ns_format_ttl(u_long, char *, size_t);
600 int ns_parse_ttl(const char *, u_long *);
602 u_int32_t ns_datetosecs(const char *cp, int *errp);
604 int ns_name_ntol(const u_char *, u_char *, size_t);
605 int ns_name_ntop(const u_char *, char *, size_t);
606 int ns_name_pton(const char *, u_char *, size_t);
607 int ns_name_pton2(const char *, u_char *, size_t, size_t *);
608 int ns_name_unpack(const u_char *, const u_char *,
609 const u_char *, u_char *, size_t);
610 int ns_name_unpack2(const u_char *, const u_char *,
611 const u_char *, u_char *, size_t,
613 int ns_name_pack(const u_char *, u_char *, int,
614 const u_char **, const u_char **);
615 int ns_name_uncompress(const u_char *, const u_char *,
616 const u_char *, char *, size_t);
617 int ns_name_compress(const char *, u_char *, size_t,
618 const u_char **, const u_char **);
619 int ns_name_skip(const u_char **, const u_char *);
620 void ns_name_rollback(const u_char *, const u_char **,
622 ssize_t ns_name_length(ns_nname_ct, size_t);
623 int ns_name_eq(ns_nname_ct, size_t, ns_nname_ct, size_t);
624 int ns_name_owned(ns_namemap_ct, int, ns_namemap_ct, int);
625 int ns_name_map(ns_nname_ct, size_t, ns_namemap_t, int);
626 int ns_name_labels(ns_nname_ct, size_t);
628 int ns_sign(u_char *, int *, int, int, void *,
629 const u_char *, int, u_char *, int *, time_t);
630 int ns_sign2(u_char *, int *, int, int, void *,
631 const u_char *, int, u_char *, int *, time_t,
632 u_char **, u_char **);
633 int ns_sign_tcp(u_char *, int *, int, int,
634 ns_tcp_tsig_state *, int);
635 int ns_sign_tcp2(u_char *, int *, int, int,
636 ns_tcp_tsig_state *, int,
637 u_char **, u_char **);
638 int ns_sign_tcp_init(void *, const u_char *, int,
639 ns_tcp_tsig_state *);
640 u_char *ns_find_tsig(u_char *, u_char *);
641 int ns_verify(u_char *, int *, void *,
642 const u_char *, int, u_char *, int *,
644 int ns_verify_tcp(u_char *, int *, ns_tcp_tsig_state *, int);
645 int ns_verify_tcp_init(void *, const u_char *, int,
646 ns_tcp_tsig_state *);
648 int ns_samedomain(const char *, const char *);
650 int ns_subdomain(const char *, const char *);
652 int ns_makecanon(const char *, char *, size_t);
653 int ns_samename(const char *, const char *);
654 int ns_newmsg_init(u_char *buffer, size_t bufsiz, ns_newmsg *);
655 int ns_newmsg_copy(ns_newmsg *, ns_msg *);
656 void ns_newmsg_id(ns_newmsg *handle, u_int16_t id);
657 void ns_newmsg_flag(ns_newmsg *handle, ns_flag flag, u_int value);
658 int ns_newmsg_q(ns_newmsg *handle, ns_nname_ct qname,
659 ns_type qtype, ns_class qclass);
660 int ns_newmsg_rr(ns_newmsg *handle, ns_sect sect,
661 ns_nname_ct name, ns_type type,
662 ns_class rr_class, u_int32_t ttl,
663 u_int16_t rdlen, const u_char *rdata);
664 size_t ns_newmsg_done(ns_newmsg *handle);
665 ssize_t ns_rdata_unpack(const u_char *, const u_char *, ns_type,
666 const u_char *, size_t, u_char *, size_t);
667 int ns_rdata_equal(ns_type,
668 const u_char *, size_t,
669 const u_char *, size_t);
670 int ns_rdata_refers(ns_type,
671 const u_char *, size_t,
676 #include <arpa/nameser_compat.h>
679 #endif /* !_ARPA_NAMESER_H_ */