2 * Copyright (C) 2004-2013 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
25 #include <isc/base64.h>
29 #include <isc/parseint.h>
30 #include <isc/print.h>
31 #include <isc/string.h>
32 #include <isc/stdlib.h>
35 #include <dns/callbacks.h>
37 #include <dns/compress.h>
38 #include <dns/enumtype.h>
39 #include <dns/keyflags.h>
40 #include <dns/keyvalues.h>
41 #include <dns/message.h>
42 #include <dns/rcode.h>
43 #include <dns/rdata.h>
44 #include <dns/rdataclass.h>
45 #include <dns/rdatastruct.h>
46 #include <dns/rdatatype.h>
47 #include <dns/result.h>
48 #include <dns/secalg.h>
49 #include <dns/secproto.h>
55 isc_result_t _r = (x); \
56 if (_r != ISC_R_SUCCESS) \
62 isc_result_t _r = (x); \
63 if (_r != ISC_R_SUCCESS) { \
64 isc_lex_ungettoken(lexer, &token); \
69 #define DNS_AS_STR(t) ((t).value.as_textregion.base)
71 #define ARGS_FROMTEXT int rdclass, dns_rdatatype_t type, \
72 isc_lex_t *lexer, dns_name_t *origin, \
73 unsigned int options, isc_buffer_t *target, \
74 dns_rdatacallbacks_t *callbacks
76 #define ARGS_TOTEXT dns_rdata_t *rdata, dns_rdata_textctx_t *tctx, \
79 #define ARGS_FROMWIRE int rdclass, dns_rdatatype_t type, \
80 isc_buffer_t *source, dns_decompress_t *dctx, \
81 unsigned int options, isc_buffer_t *target
83 #define ARGS_TOWIRE dns_rdata_t *rdata, dns_compress_t *cctx, \
86 #define ARGS_COMPARE const dns_rdata_t *rdata1, const dns_rdata_t *rdata2
88 #define ARGS_FROMSTRUCT int rdclass, dns_rdatatype_t type, \
89 void *source, isc_buffer_t *target
91 #define ARGS_TOSTRUCT dns_rdata_t *rdata, void *target, isc_mem_t *mctx
93 #define ARGS_FREESTRUCT void *source
95 #define ARGS_ADDLDATA dns_rdata_t *rdata, dns_additionaldatafunc_t add, \
98 #define ARGS_DIGEST dns_rdata_t *rdata, dns_digestfunc_t digest, void *arg
100 #define ARGS_CHECKOWNER dns_name_t *name, dns_rdataclass_t rdclass, \
101 dns_rdatatype_t type, isc_boolean_t wildcard
103 #define ARGS_CHECKNAMES dns_rdata_t *rdata, dns_name_t *owner, dns_name_t *bad
107 * Context structure for the totext_ functions.
108 * Contains formatting options for rdata-to-text
111 typedef struct dns_rdata_textctx {
112 dns_name_t *origin; /*%< Current origin, or NULL. */
113 unsigned int flags; /*%< DNS_STYLEFLAG_* */
114 unsigned int width; /*%< Width of rdata column. */
115 const char *linebreak; /*%< Line break string. */
116 } dns_rdata_textctx_t;
119 txt_totext(isc_region_t *source, isc_buffer_t *target);
122 txt_fromtext(isc_textregion_t *source, isc_buffer_t *target);
125 txt_fromwire(isc_buffer_t *source, isc_buffer_t *target);
128 multitxt_totext(isc_region_t *source, isc_buffer_t *target);
131 multitxt_fromtext(isc_textregion_t *source, isc_buffer_t *target);
134 multitxt_fromwire(isc_buffer_t *source, isc_buffer_t *target);
137 name_prefix(dns_name_t *name, dns_name_t *origin, dns_name_t *target);
140 name_length(dns_name_t *name);
143 str_totext(const char *source, isc_buffer_t *target);
146 inet_totext(int af, isc_region_t *src, isc_buffer_t *target);
149 buffer_empty(isc_buffer_t *source);
152 buffer_fromregion(isc_buffer_t *buffer, isc_region_t *region);
155 uint32_tobuffer(isc_uint32_t, isc_buffer_t *target);
158 uint16_tobuffer(isc_uint32_t, isc_buffer_t *target);
161 uint8_tobuffer(isc_uint32_t, isc_buffer_t *target);
164 name_tobuffer(dns_name_t *name, isc_buffer_t *target);
167 uint32_fromregion(isc_region_t *region);
170 uint16_fromregion(isc_region_t *region);
173 uint8_fromregion(isc_region_t *region);
176 uint8_consume_fromregion(isc_region_t *region);
179 mem_tobuffer(isc_buffer_t *target, void *base, unsigned int length);
182 hexvalue(char value);
185 decvalue(char value);
188 btoa_totext(unsigned char *inbuf, int inbuflen, isc_buffer_t *target);
191 atob_tobuffer(isc_lex_t *lexer, isc_buffer_t *target);
194 default_fromtext_callback(dns_rdatacallbacks_t *callbacks, const char *, ...)
195 ISC_FORMAT_PRINTF(2, 3);
198 fromtext_error(void (*callback)(dns_rdatacallbacks_t *, const char *, ...),
199 dns_rdatacallbacks_t *callbacks, const char *name,
200 unsigned long line, isc_token_t *token, isc_result_t result);
203 fromtext_warneof(isc_lex_t *lexer, dns_rdatacallbacks_t *callbacks);
206 rdata_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
207 isc_buffer_t *target);
210 warn_badname(dns_name_t *name, isc_lex_t *lexer,
211 dns_rdatacallbacks_t *callbacks);
214 warn_badmx(isc_token_t *token, isc_lex_t *lexer,
215 dns_rdatacallbacks_t *callbacks);
218 uint16_consume_fromregion(isc_region_t *region);
221 unknown_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
222 isc_buffer_t *target);
226 /*% IPv6 Address Size */
227 #define NS_LOCATORSZ 8
230 * convert presentation level address to network order binary form.
232 * 1 if `src' is a valid [RFC1884 2.2] address, else 0.
234 * (1) does not touch `dst' unless it's returning 1.
237 locator_pton(const char *src, unsigned char *dst) {
238 static const char xdigits_l[] = "0123456789abcdef",
239 xdigits_u[] = "0123456789ABCDEF";
240 unsigned char tmp[NS_LOCATORSZ];
241 unsigned char *tp = tmp, *endp;
243 int ch, seen_xdigits;
246 memset(tp, '\0', NS_LOCATORSZ);
247 endp = tp + NS_LOCATORSZ;
250 while ((ch = *src++) != '\0') {
253 pch = strchr((xdigits = xdigits_l), ch);
255 pch = strchr((xdigits = xdigits_u), ch);
258 val |= (pch - xdigits);
259 if (++seen_xdigits > 4)
266 if (tp + NS_INT16SZ > endp)
268 *tp++ = (unsigned char) (val >> 8) & 0xff;
269 *tp++ = (unsigned char) val & 0xff;
277 if (tp + NS_INT16SZ > endp)
279 *tp++ = (unsigned char) (val >> 8) & 0xff;
280 *tp++ = (unsigned char) val & 0xff;
284 memcpy(dst, tmp, NS_LOCATORSZ);
289 getquad(const void *src, struct in_addr *dst,
290 isc_lex_t *lexer, dns_rdatacallbacks_t *callbacks)
295 result = inet_aton(src, dst);
296 if (result == 1 && callbacks != NULL &&
297 inet_pton(AF_INET, src, &tmp) != 1) {
298 const char *name = isc_lex_getsourcename(lexer);
301 (*callbacks->warn)(callbacks, "%s:%lu: \"%s\" "
302 "is not a decimal dotted quad", name,
303 isc_lex_getsourceline(lexer), src);
308 static inline isc_result_t
309 name_duporclone(dns_name_t *source, isc_mem_t *mctx, dns_name_t *target) {
312 return (dns_name_dup(source, mctx, target));
313 dns_name_clone(source, target);
314 return (ISC_R_SUCCESS);
318 mem_maybedup(isc_mem_t *mctx, void *source, size_t length) {
323 new = isc_mem_allocate(mctx, length);
325 memcpy(new, source, length);
330 static const char hexdigits[] = "0123456789abcdef";
331 static const char decdigits[] = "0123456789";
336 #define RESERVED 0x0002
343 dns_rdata_init(dns_rdata_t *rdata) {
345 REQUIRE(rdata != NULL);
352 ISC_LINK_INIT(rdata, link);
353 /* ISC_LIST_INIT(rdata->list); */
357 dns_rdata_reset(dns_rdata_t *rdata) {
359 REQUIRE(rdata != NULL);
361 REQUIRE(!ISC_LINK_LINKED(rdata, link));
362 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
376 dns_rdata_clone(const dns_rdata_t *src, dns_rdata_t *target) {
378 REQUIRE(src != NULL);
379 REQUIRE(target != NULL);
381 REQUIRE(DNS_RDATA_INITIALIZED(target));
383 REQUIRE(DNS_RDATA_VALIDFLAGS(src));
384 REQUIRE(DNS_RDATA_VALIDFLAGS(target));
386 target->data = src->data;
387 target->length = src->length;
388 target->rdclass = src->rdclass;
389 target->type = src->type;
390 target->flags = src->flags;
399 dns_rdata_compare(const dns_rdata_t *rdata1, const dns_rdata_t *rdata2) {
401 isc_boolean_t use_default = ISC_FALSE;
403 REQUIRE(rdata1 != NULL);
404 REQUIRE(rdata2 != NULL);
405 REQUIRE(rdata1->length == 0 || rdata1->data != NULL);
406 REQUIRE(rdata2->length == 0 || rdata2->data != NULL);
407 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata1));
408 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata2));
410 if (rdata1->rdclass != rdata2->rdclass)
411 return (rdata1->rdclass < rdata2->rdclass ? -1 : 1);
413 if (rdata1->type != rdata2->type)
414 return (rdata1->type < rdata2->type ? -1 : 1);
422 dns_rdata_toregion(rdata1, &r1);
423 dns_rdata_toregion(rdata2, &r2);
424 result = isc_region_compare(&r1, &r2);
430 dns_rdata_casecompare(const dns_rdata_t *rdata1, const dns_rdata_t *rdata2) {
432 isc_boolean_t use_default = ISC_FALSE;
434 REQUIRE(rdata1 != NULL);
435 REQUIRE(rdata2 != NULL);
436 REQUIRE(rdata1->length == 0 || rdata1->data != NULL);
437 REQUIRE(rdata2->length == 0 || rdata2->data != NULL);
438 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata1));
439 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata2));
441 if (rdata1->rdclass != rdata2->rdclass)
442 return (rdata1->rdclass < rdata2->rdclass ? -1 : 1);
444 if (rdata1->type != rdata2->type)
445 return (rdata1->type < rdata2->type ? -1 : 1);
453 dns_rdata_toregion(rdata1, &r1);
454 dns_rdata_toregion(rdata2, &r2);
455 result = isc_region_compare(&r1, &r2);
465 dns_rdata_fromregion(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
466 dns_rdatatype_t type, isc_region_t *r)
469 REQUIRE(rdata != NULL);
470 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
473 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
475 rdata->data = r->base;
476 rdata->length = r->length;
477 rdata->rdclass = rdclass;
483 dns_rdata_toregion(const dns_rdata_t *rdata, isc_region_t *r) {
485 REQUIRE(rdata != NULL);
487 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
489 r->base = rdata->data;
490 r->length = rdata->length;
494 dns_rdata_fromwire(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
495 dns_rdatatype_t type, isc_buffer_t *source,
496 dns_decompress_t *dctx, unsigned int options,
497 isc_buffer_t *target)
499 isc_result_t result = ISC_R_NOTIMPLEMENTED;
503 isc_boolean_t use_default = ISC_FALSE;
504 isc_uint32_t activelength;
507 REQUIRE(dctx != NULL);
509 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
510 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
512 REQUIRE(source != NULL);
513 REQUIRE(target != NULL);
516 return (DNS_R_FORMERR);
521 activelength = isc_buffer_activelength(source);
522 INSIST(activelength < 65536);
527 if (activelength > isc_buffer_availablelength(target))
528 result = ISC_R_NOSPACE;
530 isc_buffer_putmem(target, isc_buffer_current(source),
532 isc_buffer_forward(source, activelength);
533 result = ISC_R_SUCCESS;
538 * Reject any rdata that expands out to more than DNS_RDATA_MAXLENGTH
539 * as we cannot transmit it.
541 length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
542 if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
543 result = DNS_R_FORMERR;
546 * We should have consumed all of our buffer.
548 if (result == ISC_R_SUCCESS && !buffer_empty(source))
549 result = DNS_R_EXTRADATA;
551 if (rdata != NULL && result == ISC_R_SUCCESS) {
552 region.base = isc_buffer_used(&st);
553 region.length = length;
554 dns_rdata_fromregion(rdata, rdclass, type, ®ion);
557 if (result != ISC_R_SUCCESS) {
565 dns_rdata_towire(dns_rdata_t *rdata, dns_compress_t *cctx,
566 isc_buffer_t *target)
568 isc_result_t result = ISC_R_NOTIMPLEMENTED;
569 isc_boolean_t use_default = ISC_FALSE;
573 REQUIRE(rdata != NULL);
574 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
577 * Some DynDNS meta-RRs have empty rdata.
579 if ((rdata->flags & DNS_RDATA_UPDATE) != 0) {
580 INSIST(rdata->length == 0);
581 return (ISC_R_SUCCESS);
589 isc_buffer_availableregion(target, &tr);
590 if (tr.length < rdata->length)
591 return (ISC_R_NOSPACE);
592 memcpy(tr.base, rdata->data, rdata->length);
593 isc_buffer_add(target, rdata->length);
594 return (ISC_R_SUCCESS);
596 if (result != ISC_R_SUCCESS) {
598 INSIST(target->used < 65536);
599 dns_compress_rollback(cctx, (isc_uint16_t)target->used);
605 * If the binary data in 'src' is valid uncompressed wire format
606 * rdata of class 'rdclass' and type 'type', return ISC_R_SUCCESS
607 * and copy the validated rdata to 'dest'. Otherwise return an error.
610 rdata_validate(isc_buffer_t *src, isc_buffer_t *dest, dns_rdataclass_t rdclass,
611 dns_rdatatype_t type)
613 dns_decompress_t dctx;
616 dns_decompress_init(&dctx, -1, DNS_DECOMPRESS_NONE);
617 isc_buffer_setactive(src, isc_buffer_usedlength(src));
618 result = dns_rdata_fromwire(NULL, rdclass, type, src, &dctx, 0, dest);
619 dns_decompress_invalidate(&dctx);
625 unknown_fromtext(dns_rdataclass_t rdclass, dns_rdatatype_t type,
626 isc_lex_t *lexer, isc_mem_t *mctx, isc_buffer_t *target)
629 isc_buffer_t *buf = NULL;
632 if (type == 0 || dns_rdatatype_ismeta(type))
633 return (DNS_R_METATYPE);
635 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
637 if (token.value.as_ulong > 65535U)
638 return (ISC_R_RANGE);
639 result = isc_buffer_allocate(mctx, &buf, token.value.as_ulong);
640 if (result != ISC_R_SUCCESS)
643 result = isc_hex_tobuffer(lexer, buf,
644 (unsigned int)token.value.as_ulong);
645 if (result != ISC_R_SUCCESS)
647 if (isc_buffer_usedlength(buf) != token.value.as_ulong) {
648 result = ISC_R_UNEXPECTEDEND;
652 if (dns_rdatatype_isknown(type)) {
653 result = rdata_validate(buf, target, rdclass, type);
656 isc_buffer_usedregion(buf, &r);
657 result = isc_buffer_copyregion(target, &r);
659 if (result != ISC_R_SUCCESS)
662 isc_buffer_free(&buf);
663 return (ISC_R_SUCCESS);
666 isc_buffer_free(&buf);
671 dns_rdata_fromtext(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
672 dns_rdatatype_t type, isc_lex_t *lexer,
673 dns_name_t *origin, unsigned int options, isc_mem_t *mctx,
674 isc_buffer_t *target, dns_rdatacallbacks_t *callbacks)
676 isc_result_t result = ISC_R_NOTIMPLEMENTED;
680 unsigned int lexoptions = ISC_LEXOPT_EOL | ISC_LEXOPT_EOF |
681 ISC_LEXOPT_DNSMULTILINE | ISC_LEXOPT_ESCAPE;
684 void (*callback)(dns_rdatacallbacks_t *, const char *, ...);
685 isc_result_t tresult;
687 isc_boolean_t unknown;
689 REQUIRE(origin == NULL || dns_name_isabsolute(origin) == ISC_TRUE);
691 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
692 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
694 if (callbacks != NULL) {
695 REQUIRE(callbacks->warn != NULL);
696 REQUIRE(callbacks->error != NULL);
701 if (callbacks != NULL)
702 callback = callbacks->error;
704 callback = default_fromtext_callback;
706 result = isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,
708 if (result != ISC_R_SUCCESS) {
709 name = isc_lex_getsourcename(lexer);
710 line = isc_lex_getsourceline(lexer);
711 fromtext_error(callback, callbacks, name, line, NULL, result);
716 if (token.type == isc_tokentype_string &&
717 strcmp(DNS_AS_STR(token), "\\#") == 0) {
719 * If this is a TXT record '\#' could be a escaped '#'.
720 * Look to see if the next token is a number and if so
721 * treat it as a unknown record format.
723 if (type == dns_rdatatype_txt) {
724 result = isc_lex_getmastertoken(lexer, &token,
725 isc_tokentype_number,
727 if (result == ISC_R_SUCCESS)
728 isc_lex_ungettoken(lexer, &token);
731 if (result == ISC_R_SUCCESS) {
733 result = unknown_fromtext(rdclass, type, lexer,
736 options |= DNS_RDATA_UNKNOWNESCAPE;
738 isc_lex_ungettoken(lexer, &token);
744 * Consume to end of line / file.
745 * If not at end of line initially set error code.
746 * Call callback via fromtext_error once if there was an error.
749 name = isc_lex_getsourcename(lexer);
750 line = isc_lex_getsourceline(lexer);
751 tresult = isc_lex_gettoken(lexer, lexoptions, &token);
752 if (tresult != ISC_R_SUCCESS) {
753 if (result == ISC_R_SUCCESS)
755 if (callback != NULL)
756 fromtext_error(callback, callbacks, name,
759 } else if (token.type != isc_tokentype_eol &&
760 token.type != isc_tokentype_eof) {
761 if (result == ISC_R_SUCCESS)
762 result = DNS_R_EXTRATOKEN;
763 if (callback != NULL) {
764 fromtext_error(callback, callbacks, name,
765 line, &token, result);
768 } else if (result != ISC_R_SUCCESS && callback != NULL) {
769 fromtext_error(callback, callbacks, name, line,
773 if (token.type == isc_tokentype_eof)
774 fromtext_warneof(lexer, callbacks);
779 length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
780 if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
781 result = ISC_R_NOSPACE;
783 if (rdata != NULL && result == ISC_R_SUCCESS) {
784 region.base = isc_buffer_used(&st);
785 region.length = length;
786 dns_rdata_fromregion(rdata, rdclass, type, ®ion);
788 if (result != ISC_R_SUCCESS) {
795 unknown_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
796 isc_buffer_t *target)
799 char buf[sizeof("65535")];
802 strlcpy(buf, "\\# ", sizeof(buf));
803 result = str_totext(buf, target);
804 if (result != ISC_R_SUCCESS)
807 dns_rdata_toregion(rdata, &sr);
808 INSIST(sr.length < 65536);
809 snprintf(buf, sizeof(buf), "%u", sr.length);
810 result = str_totext(buf, target);
811 if (result != ISC_R_SUCCESS)
814 if (sr.length != 0U) {
815 if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
816 result = str_totext(" ( ", target);
818 result = str_totext(" ", target);
820 if (result != ISC_R_SUCCESS)
823 if (tctx->width == 0) /* No splitting */
824 result = isc_hex_totext(&sr, 0, "", target);
826 result = isc_hex_totext(&sr, tctx->width - 2,
829 if (result == ISC_R_SUCCESS &&
830 (tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
831 result = str_totext(" )", target);
837 rdata_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
838 isc_buffer_t *target)
840 isc_result_t result = ISC_R_NOTIMPLEMENTED;
841 isc_boolean_t use_default = ISC_FALSE;
843 REQUIRE(rdata != NULL);
844 REQUIRE(tctx->origin == NULL ||
845 dns_name_isabsolute(tctx->origin) == ISC_TRUE);
848 * Some DynDNS meta-RRs have empty rdata.
850 if ((rdata->flags & DNS_RDATA_UPDATE) != 0) {
851 INSIST(rdata->length == 0);
852 return (ISC_R_SUCCESS);
858 result = unknown_totext(rdata, tctx, target);
864 dns_rdata_totext(dns_rdata_t *rdata, dns_name_t *origin, isc_buffer_t *target)
866 dns_rdata_textctx_t tctx;
868 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
871 * Set up formatting options for single-line output.
873 tctx.origin = origin;
876 tctx.linebreak = " ";
877 return (rdata_totext(rdata, &tctx, target));
881 dns_rdata_tofmttext(dns_rdata_t *rdata, dns_name_t *origin,
882 unsigned int flags, unsigned int width,
883 unsigned int split_width, const char *linebreak,
884 isc_buffer_t *target)
886 dns_rdata_textctx_t tctx;
888 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
891 * Set up formatting options for formatted output.
893 tctx.origin = origin;
895 if (split_width == 0xffffffff)
898 tctx.width = split_width;
900 if ((flags & DNS_STYLEFLAG_MULTILINE) != 0)
901 tctx.linebreak = linebreak;
903 if (split_width == 0xffffffff)
904 tctx.width = 60; /* Used for hex word length only. */
905 tctx.linebreak = " ";
907 return (rdata_totext(rdata, &tctx, target));
911 dns_rdata_fromstruct(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
912 dns_rdatatype_t type, void *source,
913 isc_buffer_t *target)
915 isc_result_t result = ISC_R_NOTIMPLEMENTED;
918 isc_boolean_t use_default = ISC_FALSE;
921 REQUIRE(source != NULL);
923 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
924 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
934 length = isc_buffer_usedlength(target) - isc_buffer_usedlength(&st);
935 if (result == ISC_R_SUCCESS && length > DNS_RDATA_MAXLENGTH)
936 result = ISC_R_NOSPACE;
938 if (rdata != NULL && result == ISC_R_SUCCESS) {
939 region.base = isc_buffer_used(&st);
940 region.length = length;
941 dns_rdata_fromregion(rdata, rdclass, type, ®ion);
943 if (result != ISC_R_SUCCESS)
949 dns_rdata_tostruct(dns_rdata_t *rdata, void *target, isc_mem_t *mctx) {
950 isc_result_t result = ISC_R_NOTIMPLEMENTED;
951 isc_boolean_t use_default = ISC_FALSE;
953 REQUIRE(rdata != NULL);
954 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
965 dns_rdata_freestruct(void *source) {
966 dns_rdatacommon_t *common = source;
967 REQUIRE(source != NULL);
973 dns_rdata_additionaldata(dns_rdata_t *rdata, dns_additionaldatafunc_t add,
976 isc_result_t result = ISC_R_NOTIMPLEMENTED;
977 isc_boolean_t use_default = ISC_FALSE;
980 * Call 'add' for each name and type from 'rdata' which is subject to
981 * additional section processing.
984 REQUIRE(rdata != NULL);
985 REQUIRE(add != NULL);
986 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
990 /* No additional processing for unknown types */
992 result = ISC_R_SUCCESS;
998 dns_rdata_digest(dns_rdata_t *rdata, dns_digestfunc_t digest, void *arg) {
999 isc_result_t result = ISC_R_NOTIMPLEMENTED;
1000 isc_boolean_t use_default = ISC_FALSE;
1004 * Send 'rdata' in DNSSEC canonical form to 'digest'.
1007 REQUIRE(rdata != NULL);
1008 REQUIRE(digest != NULL);
1009 REQUIRE(DNS_RDATA_VALIDFLAGS(rdata));
1014 dns_rdata_toregion(rdata, &r);
1015 result = (digest)(arg, &r);
1022 dns_rdata_checkowner(dns_name_t *name, dns_rdataclass_t rdclass,
1023 dns_rdatatype_t type, isc_boolean_t wildcard)
1025 isc_boolean_t result;
1032 dns_rdata_checknames(dns_rdata_t *rdata, dns_name_t *owner, dns_name_t *bad)
1034 isc_boolean_t result;
1041 dns_rdatatype_attributes(dns_rdatatype_t type)
1043 RDATATYPE_ATTRIBUTE_SW
1044 if (type >= (dns_rdatatype_t)128 && type < (dns_rdatatype_t)255)
1045 return (DNS_RDATATYPEATTR_UNKNOWN | DNS_RDATATYPEATTR_META);
1046 return (DNS_RDATATYPEATTR_UNKNOWN);
1050 dns_rdatatype_fromtext(dns_rdatatype_t *typep, isc_textregion_t *source) {
1058 return (DNS_R_UNKNOWN);
1060 a = tolower((unsigned char)source->base[0]);
1061 b = tolower((unsigned char)source->base[n - 1]);
1063 hash = ((a + n) * b) % 256;
1066 * This switch block is inlined via \#define, and will use "return"
1067 * to return a result to the caller if it is a valid (known)
1070 RDATATYPE_FROMTEXT_SW(hash, source->base, n, typep);
1072 if (source->length > 4 && source->length < (4 + sizeof("65000")) &&
1073 strncasecmp("type", source->base, 4) == 0) {
1074 char buf[sizeof("65000")];
1078 strncpy(buf, source->base + 4, source->length - 4);
1079 buf[source->length - 4] = '\0';
1080 val = strtoul(buf, &endp, 10);
1081 if (*endp == '\0' && val <= 0xffff) {
1082 *typep = (dns_rdatatype_t)val;
1083 return (ISC_R_SUCCESS);
1087 return (DNS_R_UNKNOWN);
1091 dns_rdatatype_totext(dns_rdatatype_t type, isc_buffer_t *target) {
1092 char buf[sizeof("TYPE65535")];
1095 snprintf(buf, sizeof(buf), "TYPE%u", type);
1096 return (str_totext(buf, target));
1100 dns_rdatatype_format(dns_rdatatype_t rdtype,
1101 char *array, unsigned int size)
1103 isc_result_t result;
1109 isc_buffer_init(&buf, array, size);
1110 result = dns_rdatatype_totext(rdtype, &buf);
1114 if (result == ISC_R_SUCCESS) {
1115 if (isc_buffer_availablelength(&buf) >= 1)
1116 isc_buffer_putuint8(&buf, 0);
1118 result = ISC_R_NOSPACE;
1120 if (result != ISC_R_SUCCESS)
1121 strlcpy(array, "<unknown>", size);
1129 name_length(dns_name_t *name) {
1130 return (name->length);
1134 txt_totext(isc_region_t *source, isc_buffer_t *target) {
1139 isc_region_t region;
1141 isc_buffer_availableregion(target, ®ion);
1143 tp = (char *)region.base;
1148 REQUIRE(n + 1 <= source->length);
1151 return (ISC_R_NOSPACE);
1155 if (*sp < 0x20 || *sp >= 0x7f) {
1157 return (ISC_R_NOSPACE);
1159 *tp++ = 0x30 + ((*sp / 100) % 10);
1160 *tp++ = 0x30 + ((*sp / 10) % 10);
1161 *tp++ = 0x30 + (*sp % 10);
1166 /* double quote, semi-colon, backslash */
1167 if (*sp == 0x22 || *sp == 0x3b || *sp == 0x5c) {
1169 return (ISC_R_NOSPACE);
1174 return (ISC_R_NOSPACE);
1179 return (ISC_R_NOSPACE);
1182 isc_buffer_add(target, tp - (char *)region.base);
1183 isc_region_consume(source, *source->base + 1);
1184 return (ISC_R_SUCCESS);
1188 txt_fromtext(isc_textregion_t *source, isc_buffer_t *target) {
1189 isc_region_t tregion;
1190 isc_boolean_t escape;
1191 unsigned int n, nrem;
1197 isc_buffer_availableregion(target, &tregion);
1201 nrem = tregion.length;
1204 return (ISC_R_NOSPACE);
1211 * Maximum text string length.
1217 if (escape && (d = decvalue((char)c)) != -1) {
1220 return (DNS_R_SYNTAX);
1222 if ((d = decvalue(*s++)) != -1)
1225 return (DNS_R_SYNTAX);
1227 return (DNS_R_SYNTAX);
1229 if ((d = decvalue(*s++)) != -1)
1232 return (DNS_R_SYNTAX);
1234 return (DNS_R_SYNTAX);
1235 } else if (!escape && c == '\\') {
1241 return ((tregion.length <= 256U) ?
1242 ISC_R_NOSPACE : DNS_R_SYNTAX);
1247 return (DNS_R_SYNTAX);
1248 *tregion.base = t - tregion.base - 1;
1249 isc_buffer_add(target, *tregion.base + 1);
1250 return (ISC_R_SUCCESS);
1254 txt_fromwire(isc_buffer_t *source, isc_buffer_t *target) {
1256 isc_region_t sregion;
1257 isc_region_t tregion;
1259 isc_buffer_activeregion(source, &sregion);
1260 if (sregion.length == 0)
1261 return(ISC_R_UNEXPECTEDEND);
1262 n = *sregion.base + 1;
1263 if (n > sregion.length)
1264 return (ISC_R_UNEXPECTEDEND);
1266 isc_buffer_availableregion(target, &tregion);
1267 if (n > tregion.length)
1268 return (ISC_R_NOSPACE);
1270 if (tregion.base != sregion.base)
1271 memcpy(tregion.base, sregion.base, n);
1272 isc_buffer_forward(source, n);
1273 isc_buffer_add(target, n);
1274 return (ISC_R_SUCCESS);
1278 multitxt_totext(isc_region_t *source, isc_buffer_t *target) {
1283 isc_region_t region;
1285 isc_buffer_availableregion(target, ®ion);
1287 tp = (char *)region.base;
1291 return (ISC_R_NOSPACE);
1297 REQUIRE(n0 + 1 <= source->length);
1300 if (*sp < 0x20 || *sp >= 0x7f) {
1302 return (ISC_R_NOSPACE);
1304 *tp++ = 0x30 + ((*sp / 100) % 10);
1305 *tp++ = 0x30 + ((*sp / 10) % 10);
1306 *tp++ = 0x30 + (*sp % 10);
1311 /* double quote, semi-colon, backslash */
1312 if (*sp == 0x22 || *sp == 0x3b || *sp == 0x5c) {
1314 return (ISC_R_NOSPACE);
1319 return (ISC_R_NOSPACE);
1323 isc_region_consume(source, n0 + 1);
1324 } while (source->length != 0);
1326 return (ISC_R_NOSPACE);
1329 isc_buffer_add(target, tp - (char *)region.base);
1330 return (ISC_R_SUCCESS);
1334 multitxt_fromtext(isc_textregion_t *source, isc_buffer_t *target) {
1335 isc_region_t tregion;
1336 isc_boolean_t escape;
1337 unsigned int n, nrem;
1339 unsigned char *t0, *t;
1348 isc_buffer_availableregion(target, &tregion);
1350 nrem = tregion.length;
1352 return (ISC_R_NOSPACE);
1357 /* 255 byte character-string slice */
1363 if (escape && (d = decvalue((char)c)) != -1) {
1366 return (DNS_R_SYNTAX);
1368 if ((d = decvalue(*s++)) != -1)
1371 return (DNS_R_SYNTAX);
1373 return (DNS_R_SYNTAX);
1375 if ((d = decvalue(*s++)) != -1)
1378 return (DNS_R_SYNTAX);
1380 return (DNS_R_SYNTAX);
1381 } else if (!escape && c == '\\') {
1392 return (DNS_R_SYNTAX);
1394 isc_buffer_add(target, *t0 + 1);
1396 return (ISC_R_SUCCESS);
1400 multitxt_fromwire(isc_buffer_t *source, isc_buffer_t *target) {
1402 isc_region_t sregion;
1403 isc_region_t tregion;
1405 isc_buffer_activeregion(source, &sregion);
1406 if (sregion.length == 0)
1407 return(ISC_R_UNEXPECTEDEND);
1411 return (DNS_R_SYNTAX);
1412 n = *sregion.base + 1;
1413 if (n > sregion.length)
1414 return (ISC_R_UNEXPECTEDEND);
1416 isc_buffer_availableregion(target, &tregion);
1417 if (n > tregion.length)
1418 return (ISC_R_NOSPACE);
1420 if (tregion.base != sregion.base)
1421 memcpy(tregion.base, sregion.base, n);
1422 isc_buffer_forward(source, n);
1423 isc_buffer_add(target, n);
1424 isc_buffer_activeregion(source, &sregion);
1425 } while (sregion.length != 0);
1426 return (ISC_R_SUCCESS);
1429 static isc_boolean_t
1430 name_prefix(dns_name_t *name, dns_name_t *origin, dns_name_t *target) {
1436 if (dns_name_compare(origin, dns_rootname) == 0)
1439 if (!dns_name_issubdomain(name, origin))
1442 l1 = dns_name_countlabels(name);
1443 l2 = dns_name_countlabels(origin);
1448 /* Master files should be case preserving. */
1449 dns_name_getlabelsequence(name, l1 - l2, l2, target);
1450 if (!dns_name_caseequal(origin, target))
1453 dns_name_getlabelsequence(name, 0, l1 - l2, target);
1462 str_totext(const char *source, isc_buffer_t *target) {
1464 isc_region_t region;
1466 isc_buffer_availableregion(target, ®ion);
1469 if (l > region.length)
1470 return (ISC_R_NOSPACE);
1472 memcpy(region.base, source, l);
1473 isc_buffer_add(target, l);
1474 return (ISC_R_SUCCESS);
1478 inet_totext(int af, isc_region_t *src, isc_buffer_t *target) {
1481 /* Note - inet_ntop doesn't do size checking on its input. */
1482 if (inet_ntop(af, src->base, tmpbuf, sizeof(tmpbuf)) == NULL)
1483 return (ISC_R_NOSPACE);
1484 if (strlen(tmpbuf) > isc_buffer_availablelength(target))
1485 return (ISC_R_NOSPACE);
1486 isc_buffer_putstr(target, tmpbuf);
1487 return (ISC_R_SUCCESS);
1490 static isc_boolean_t
1491 buffer_empty(isc_buffer_t *source) {
1492 return((source->current == source->active) ? ISC_TRUE : ISC_FALSE);
1496 buffer_fromregion(isc_buffer_t *buffer, isc_region_t *region) {
1497 isc_buffer_init(buffer, region->base, region->length);
1498 isc_buffer_add(buffer, region->length);
1499 isc_buffer_setactive(buffer, region->length);
1503 uint32_tobuffer(isc_uint32_t value, isc_buffer_t *target) {
1504 isc_region_t region;
1506 isc_buffer_availableregion(target, ®ion);
1507 if (region.length < 4)
1508 return (ISC_R_NOSPACE);
1509 isc_buffer_putuint32(target, value);
1510 return (ISC_R_SUCCESS);
1514 uint16_tobuffer(isc_uint32_t value, isc_buffer_t *target) {
1515 isc_region_t region;
1518 return (ISC_R_RANGE);
1519 isc_buffer_availableregion(target, ®ion);
1520 if (region.length < 2)
1521 return (ISC_R_NOSPACE);
1522 isc_buffer_putuint16(target, (isc_uint16_t)value);
1523 return (ISC_R_SUCCESS);
1527 uint8_tobuffer(isc_uint32_t value, isc_buffer_t *target) {
1528 isc_region_t region;
1531 return (ISC_R_RANGE);
1532 isc_buffer_availableregion(target, ®ion);
1533 if (region.length < 1)
1534 return (ISC_R_NOSPACE);
1535 isc_buffer_putuint8(target, (isc_uint8_t)value);
1536 return (ISC_R_SUCCESS);
1540 name_tobuffer(dns_name_t *name, isc_buffer_t *target) {
1542 dns_name_toregion(name, &r);
1543 return (isc_buffer_copyregion(target, &r));
1547 uint32_fromregion(isc_region_t *region) {
1550 REQUIRE(region->length >= 4);
1551 value = region->base[0] << 24;
1552 value |= region->base[1] << 16;
1553 value |= region->base[2] << 8;
1554 value |= region->base[3];
1559 uint16_consume_fromregion(isc_region_t *region) {
1560 isc_uint16_t r = uint16_fromregion(region);
1562 isc_region_consume(region, 2);
1567 uint16_fromregion(isc_region_t *region) {
1569 REQUIRE(region->length >= 2);
1571 return ((region->base[0] << 8) | region->base[1]);
1575 uint8_fromregion(isc_region_t *region) {
1577 REQUIRE(region->length >= 1);
1579 return (region->base[0]);
1583 uint8_consume_fromregion(isc_region_t *region) {
1584 isc_uint8_t r = uint8_fromregion(region);
1586 isc_region_consume(region, 1);
1591 mem_tobuffer(isc_buffer_t *target, void *base, unsigned int length) {
1594 isc_buffer_availableregion(target, &tr);
1595 if (length > tr.length)
1596 return (ISC_R_NOSPACE);
1597 if (tr.base != base)
1598 memcpy(tr.base, base, length);
1599 isc_buffer_add(target, length);
1600 return (ISC_R_SUCCESS);
1604 hexvalue(char value) {
1608 c = (unsigned char)value;
1614 if ((s = strchr(hexdigits, c)) == NULL)
1616 return (s - hexdigits);
1620 decvalue(char value) {
1624 * isascii() is valid for full range of int values, no need to
1627 if (!isascii(value))
1629 if ((s = strchr(decdigits, value)) == NULL)
1631 return (s - decdigits);
1634 static const char atob_digits[86] =
1635 "!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`" \
1636 "abcdefghijklmnopqrstu";
1638 * Subroutines to convert between 8 bit binary bytes and printable ASCII.
1639 * Computes the number of bytes, and three kinds of simple checksums.
1640 * Incoming bytes are collected into 32-bit words, then printed in base 85:
1641 * exp(85,5) > exp(2,32)
1642 * The ASCII characters used are between '!' and 'u';
1643 * 'z' encodes 32-bit zero; 'x' is used to mark the end of encoded data.
1645 * Originally by Paul Rutter (philabs!per) and Joe Orost (petsd!joe) for
1646 * the atob/btoa programs, released with the compress program, in mod.sources.
1647 * Modified by Mike Schwartz 8/19/86 for use in BIND.
1648 * Modified to be re-entrant 3/2/99.
1660 #define Ceor state->Ceor
1661 #define Csum state->Csum
1662 #define Crot state->Crot
1663 #define word state->word
1664 #define bcount state->bcount
1666 #define times85(x) ((((((x<<2)+x)<<2)+x)<<2)+x)
1668 static isc_result_t byte_atob(int c, isc_buffer_t *target,
1669 struct state *state);
1670 static isc_result_t putbyte(int c, isc_buffer_t *, struct state *state);
1671 static isc_result_t byte_btoa(int c, isc_buffer_t *, struct state *state);
1674 * Decode ASCII-encoded byte c into binary representation and
1675 * place into *bufp, advancing bufp.
1678 byte_atob(int c, isc_buffer_t *target, struct state *state) {
1682 return(DNS_R_SYNTAX);
1684 RETERR(putbyte(0, target, state));
1685 RETERR(putbyte(0, target, state));
1686 RETERR(putbyte(0, target, state));
1687 RETERR(putbyte(0, target, state));
1689 } else if ((s = strchr(atob_digits, c)) != NULL) {
1691 word = s - atob_digits;
1693 } else if (bcount < 4) {
1694 word = times85(word);
1695 word += s - atob_digits;
1698 word = times85(word);
1699 word += s - atob_digits;
1700 RETERR(putbyte((word >> 24) & 0xff, target, state));
1701 RETERR(putbyte((word >> 16) & 0xff, target, state));
1702 RETERR(putbyte((word >> 8) & 0xff, target, state));
1703 RETERR(putbyte(word & 0xff, target, state));
1708 return(DNS_R_SYNTAX);
1709 return(ISC_R_SUCCESS);
1713 * Compute checksum info and place c into target.
1716 putbyte(int c, isc_buffer_t *target, struct state *state) {
1722 if ((Crot & 0x80000000)) {
1729 isc_buffer_availableregion(target, &tr);
1731 return (ISC_R_NOSPACE);
1733 isc_buffer_add(target, 1);
1734 return (ISC_R_SUCCESS);
1738 * Read the ASCII-encoded data from inbuf, of length inbuflen, and convert
1739 * it into T_UNSPEC (binary data) in outbuf, not to exceed outbuflen bytes;
1740 * outbuflen must be divisible by 4. (Note: this is because outbuf is filled
1741 * in 4 bytes at a time. If the actual data doesn't end on an even 4-byte
1742 * boundary, there will be no problem...it will be padded with 0 bytes, and
1743 * numbytes will indicate the correct number of bytes. The main point is
1744 * that since the buffer is filled in 4 bytes at a time, even if there is
1745 * not a full 4 bytes of data at the end, there has to be room to 0-pad the
1746 * data, so the buffer must be of size divisible by 4). Place the number of
1747 * output bytes in numbytes, and return a failure/success status.
1751 atob_tobuffer(isc_lex_t *lexer, isc_buffer_t *target) {
1752 long oeor, osum, orot;
1753 struct state statebuf, *state= &statebuf;
1758 Ceor = Csum = Crot = word = bcount = 0;
1760 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
1762 while (token.value.as_textregion.length != 0) {
1763 if ((c = token.value.as_textregion.base[0]) == 'x') {
1766 RETERR(byte_atob(c, target, state));
1767 isc_textregion_consume(&token.value.as_textregion, 1);
1773 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
1775 if ((token.value.as_ulong % 4) != 0U)
1776 isc_buffer_subtract(target, 4 - (token.value.as_ulong % 4));
1781 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
1783 oeor = strtol(DNS_AS_STR(token), &e, 16);
1785 return (DNS_R_SYNTAX);
1790 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
1792 osum = strtol(DNS_AS_STR(token), &e, 16);
1794 return (DNS_R_SYNTAX);
1799 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,
1801 orot = strtol(DNS_AS_STR(token), &e, 16);
1803 return (DNS_R_SYNTAX);
1805 if ((oeor != Ceor) || (osum != Csum) || (orot != Crot))
1806 return(DNS_R_BADCKSUM);
1807 return (ISC_R_SUCCESS);
1811 * Encode binary byte c into ASCII representation and place into *bufp,
1815 byte_btoa(int c, isc_buffer_t *target, struct state *state) {
1818 isc_buffer_availableregion(target, &tr);
1822 if ((Crot & 0x80000000)) {
1835 return (ISC_R_NOSPACE);
1837 isc_buffer_add(target, 1);
1839 register int tmp = 0;
1840 register isc_int32_t tmpword = word;
1844 * Because some don't support u_long.
1847 tmpword -= (isc_int32_t)(85 * 85 * 85 * 85 * 32);
1851 tmpword -= (isc_int32_t)(85 * 85 * 85 * 85 * 32);
1854 return (ISC_R_NOSPACE);
1855 tr.base[0] = atob_digits[(tmpword /
1856 (isc_int32_t)(85 * 85 * 85 * 85))
1858 tmpword %= (isc_int32_t)(85 * 85 * 85 * 85);
1859 tr.base[1] = atob_digits[tmpword / (85 * 85 * 85)];
1860 tmpword %= (85 * 85 * 85);
1861 tr.base[2] = atob_digits[tmpword / (85 * 85)];
1862 tmpword %= (85 * 85);
1863 tr.base[3] = atob_digits[tmpword / 85];
1865 tr.base[4] = atob_digits[tmpword];
1866 isc_buffer_add(target, 5);
1872 return (ISC_R_SUCCESS);
1877 * Encode the binary data from inbuf, of length inbuflen, into a
1878 * target. Return success/failure status
1881 btoa_totext(unsigned char *inbuf, int inbuflen, isc_buffer_t *target) {
1883 struct state statebuf, *state = &statebuf;
1884 char buf[sizeof("x 2000000000 ffffffff ffffffff ffffffff")];
1886 Ceor = Csum = Crot = word = bcount = 0;
1887 for (inc = 0; inc < inbuflen; inbuf++, inc++)
1888 RETERR(byte_btoa(*inbuf, target, state));
1891 RETERR(byte_btoa(0, target, state));
1894 * Put byte count and checksum information at end of buffer,
1897 snprintf(buf, sizeof(buf), "x %d %x %x %x", inbuflen, Ceor, Csum, Crot);
1898 return (str_totext(buf, target));
1903 default_fromtext_callback(dns_rdatacallbacks_t *callbacks, const char *fmt,
1911 vfprintf(stderr, fmt, ap);
1913 fprintf(stderr, "\n");
1917 fromtext_warneof(isc_lex_t *lexer, dns_rdatacallbacks_t *callbacks) {
1918 if (isc_lex_isfile(lexer) && callbacks != NULL) {
1919 const char *name = isc_lex_getsourcename(lexer);
1922 (*callbacks->warn)(callbacks,
1923 "%s:%lu: file does not end with newline",
1924 name, isc_lex_getsourceline(lexer));
1929 warn_badmx(isc_token_t *token, isc_lex_t *lexer,
1930 dns_rdatacallbacks_t *callbacks)
1935 if (lexer != NULL) {
1936 file = isc_lex_getsourcename(lexer);
1937 line = isc_lex_getsourceline(lexer);
1938 (*callbacks->warn)(callbacks, "%s:%u: warning: '%s': %s",
1939 file, line, DNS_AS_STR(*token),
1940 dns_result_totext(DNS_R_MXISADDRESS));
1945 warn_badname(dns_name_t *name, isc_lex_t *lexer,
1946 dns_rdatacallbacks_t *callbacks)
1950 char namebuf[DNS_NAME_FORMATSIZE];
1952 if (lexer != NULL) {
1953 file = isc_lex_getsourcename(lexer);
1954 line = isc_lex_getsourceline(lexer);
1955 dns_name_format(name, namebuf, sizeof(namebuf));
1956 (*callbacks->warn)(callbacks, "%s:%u: warning: %s: %s",
1957 file, line, namebuf,
1958 dns_result_totext(DNS_R_BADNAME));
1963 fromtext_error(void (*callback)(dns_rdatacallbacks_t *, const char *, ...),
1964 dns_rdatacallbacks_t *callbacks, const char *name,
1965 unsigned long line, isc_token_t *token, isc_result_t result)
1970 if (token != NULL) {
1971 switch (token->type) {
1972 case isc_tokentype_eol:
1973 (*callback)(callbacks, "%s: %s:%lu: near eol: %s",
1974 "dns_rdata_fromtext", name, line,
1975 dns_result_totext(result));
1977 case isc_tokentype_eof:
1978 (*callback)(callbacks, "%s: %s:%lu: near eof: %s",
1979 "dns_rdata_fromtext", name, line,
1980 dns_result_totext(result));
1982 case isc_tokentype_number:
1983 (*callback)(callbacks, "%s: %s:%lu: near %lu: %s",
1984 "dns_rdata_fromtext", name, line,
1985 token->value.as_ulong,
1986 dns_result_totext(result));
1988 case isc_tokentype_string:
1989 case isc_tokentype_qstring:
1990 (*callback)(callbacks, "%s: %s:%lu: near '%s': %s",
1991 "dns_rdata_fromtext", name, line,
1993 dns_result_totext(result));
1996 (*callback)(callbacks, "%s: %s:%lu: %s",
1997 "dns_rdata_fromtext", name, line,
1998 dns_result_totext(result));
2002 (*callback)(callbacks, "dns_rdata_fromtext: %s:%lu: %s",
2003 name, line, dns_result_totext(result));
2008 dns_rdata_covers(dns_rdata_t *rdata) {
2009 if (rdata->type == 46)
2010 return (covers_rrsig(rdata));
2011 return (covers_sig(rdata));
2015 dns_rdatatype_ismeta(dns_rdatatype_t type) {
2016 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_META) != 0)
2022 dns_rdatatype_issingleton(dns_rdatatype_t type) {
2023 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_SINGLETON)
2030 dns_rdatatype_notquestion(dns_rdatatype_t type) {
2031 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_NOTQUESTION)
2038 dns_rdatatype_questiononly(dns_rdatatype_t type) {
2039 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_QUESTIONONLY)
2046 dns_rdatatype_atparent(dns_rdatatype_t type) {
2047 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_ATPARENT) != 0)
2053 dns_rdataclass_ismeta(dns_rdataclass_t rdclass) {
2055 if (rdclass == dns_rdataclass_reserved0
2056 || rdclass == dns_rdataclass_none
2057 || rdclass == dns_rdataclass_any)
2060 return (ISC_FALSE); /* Assume it is not a meta class. */
2064 dns_rdatatype_isdnssec(dns_rdatatype_t type) {
2065 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_DNSSEC) != 0)
2071 dns_rdatatype_iszonecutauth(dns_rdatatype_t type) {
2072 if ((dns_rdatatype_attributes(type)
2073 & (DNS_RDATATYPEATTR_DNSSEC | DNS_RDATATYPEATTR_ZONECUTAUTH))
2080 dns_rdatatype_isknown(dns_rdatatype_t type) {
2081 if ((dns_rdatatype_attributes(type) & DNS_RDATATYPEATTR_UNKNOWN)
2088 dns_rdata_exists(dns_rdata_t *rdata, dns_rdatatype_t type) {
2090 REQUIRE(rdata != NULL);
2091 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
2095 rdata->flags = DNS_RDATA_UPDATE;
2097 rdata->rdclass = dns_rdataclass_any;
2101 dns_rdata_notexist(dns_rdata_t *rdata, dns_rdatatype_t type) {
2103 REQUIRE(rdata != NULL);
2104 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
2108 rdata->flags = DNS_RDATA_UPDATE;
2110 rdata->rdclass = dns_rdataclass_none;
2114 dns_rdata_deleterrset(dns_rdata_t *rdata, dns_rdatatype_t type) {
2116 REQUIRE(rdata != NULL);
2117 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
2121 rdata->flags = DNS_RDATA_UPDATE;
2123 rdata->rdclass = dns_rdataclass_any;
2127 dns_rdata_makedelete(dns_rdata_t *rdata) {
2128 REQUIRE(rdata != NULL);
2130 rdata->rdclass = dns_rdataclass_none;
2134 dns_rdata_updateop(dns_rdata_t *rdata, dns_section_t section) {
2136 REQUIRE(rdata != NULL);
2137 REQUIRE(DNS_RDATA_INITIALIZED(rdata));
2140 case DNS_SECTION_PREREQUISITE:
2141 switch (rdata->rdclass) {
2142 case dns_rdataclass_none:
2143 switch (rdata->type) {
2144 case dns_rdatatype_any:
2145 return ("domain doesn't exist");
2147 return ("rrset doesn't exist");
2149 case dns_rdataclass_any:
2150 switch (rdata->type) {
2151 case dns_rdatatype_any:
2152 return ("domain exists");
2154 return ("rrset exists (value independent)");
2157 return ("rrset exists (value dependent)");
2159 case DNS_SECTION_UPDATE:
2160 switch (rdata->rdclass) {
2161 case dns_rdataclass_none:
2163 case dns_rdataclass_any:
2164 switch (rdata->type) {
2165 case dns_rdatatype_any:
2166 return ("delete all rrsets");
2168 return ("delete rrset");