/contrib/bind9/lib/dns/rdata/generic/soa_6.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 449 lines · 328 code · 102 blank · 19 comment · 65 complexity · a7ee339973f54cef3660969c9e7cd967 MD5 · raw file
- /*
- * Copyright (C) 2004, 2007, 2009, 2012 Internet Systems Consortium, Inc. ("ISC")
- * Copyright (C) 1998-2002 Internet Software Consortium.
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
- /* $Id$ */
- /* Reviewed: Thu Mar 16 15:18:32 PST 2000 by explorer */
- #ifndef RDATA_GENERIC_SOA_6_C
- #define RDATA_GENERIC_SOA_6_C
- #define RRTYPE_SOA_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)
- static inline isc_result_t
- fromtext_soa(ARGS_FROMTEXT) {
- isc_token_t token;
- dns_name_t name;
- isc_buffer_t buffer;
- int i;
- isc_uint32_t n;
- isc_boolean_t ok;
- REQUIRE(type == 6);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(callbacks);
- origin = (origin != NULL) ? origin : dns_rootname;
- for (i = 0; i < 2; i++) {
- RETERR(isc_lex_getmastertoken(lexer, &token,
- isc_tokentype_string,
- ISC_FALSE));
- dns_name_init(&name, NULL);
- buffer_fromregion(&buffer, &token.value.as_region);
- RETTOK(dns_name_fromtext(&name, &buffer, origin,
- options, target));
- ok = ISC_TRUE;
- if ((options & DNS_RDATA_CHECKNAMES) != 0)
- switch (i) {
- case 0:
- ok = dns_name_ishostname(&name, ISC_FALSE);
- break;
- case 1:
- ok = dns_name_ismailbox(&name);
- break;
- }
- if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)
- RETTOK(DNS_R_BADNAME);
- if (!ok && callbacks != NULL)
- warn_badname(&name, lexer, callbacks);
- }
- RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
- ISC_FALSE));
- RETERR(uint32_tobuffer(token.value.as_ulong, target));
- for (i = 0; i < 4; i++) {
- RETERR(isc_lex_getmastertoken(lexer, &token,
- isc_tokentype_string,
- ISC_FALSE));
- RETTOK(dns_counter_fromtext(&token.value.as_textregion, &n));
- RETERR(uint32_tobuffer(n, target));
- }
- return (ISC_R_SUCCESS);
- }
- static const char *soa_fieldnames[5] = {
- "serial", "refresh", "retry", "expire", "minimum"
- };
- static inline isc_result_t
- totext_soa(ARGS_TOTEXT) {
- isc_region_t dregion;
- dns_name_t mname;
- dns_name_t rname;
- dns_name_t prefix;
- isc_boolean_t sub;
- int i;
- isc_boolean_t multiline;
- isc_boolean_t comment;
- REQUIRE(rdata->type == 6);
- REQUIRE(rdata->length != 0);
- multiline = ISC_TF((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0);
- if (multiline)
- comment = ISC_TF((tctx->flags & DNS_STYLEFLAG_COMMENT) != 0);
- else
- comment = ISC_FALSE;
- dns_name_init(&mname, NULL);
- dns_name_init(&rname, NULL);
- dns_name_init(&prefix, NULL);
- dns_rdata_toregion(rdata, &dregion);
- dns_name_fromregion(&mname, &dregion);
- isc_region_consume(&dregion, name_length(&mname));
- dns_name_fromregion(&rname, &dregion);
- isc_region_consume(&dregion, name_length(&rname));
- sub = name_prefix(&mname, tctx->origin, &prefix);
- RETERR(dns_name_totext(&prefix, sub, target));
- RETERR(str_totext(" ", target));
- sub = name_prefix(&rname, tctx->origin, &prefix);
- RETERR(dns_name_totext(&prefix, sub, target));
- if (multiline)
- RETERR(str_totext(" (" , target));
- RETERR(str_totext(tctx->linebreak, target));
- for (i = 0; i < 5; i++) {
- char buf[sizeof("0123456789 ; ")];
- unsigned long num;
- num = uint32_fromregion(&dregion);
- isc_region_consume(&dregion, 4);
- sprintf(buf, comment ? "%-10lu ; " : "%lu", num);
- RETERR(str_totext(buf, target));
- if (comment) {
- RETERR(str_totext(soa_fieldnames[i], target));
- /* Print times in week/day/hour/minute/second form */
- if (i >= 1) {
- RETERR(str_totext(" (", target));
- RETERR(dns_ttl_totext(num, ISC_TRUE, target));
- RETERR(str_totext(")", target));
- }
- RETERR(str_totext(tctx->linebreak, target));
- } else if (i < 4) {
- RETERR(str_totext(tctx->linebreak, target));
- }
- }
- if (multiline)
- RETERR(str_totext(")", target));
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- fromwire_soa(ARGS_FROMWIRE) {
- dns_name_t mname;
- dns_name_t rname;
- isc_region_t sregion;
- isc_region_t tregion;
- REQUIRE(type == 6);
- UNUSED(type);
- UNUSED(rdclass);
- dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
- dns_name_init(&mname, NULL);
- dns_name_init(&rname, NULL);
- RETERR(dns_name_fromwire(&mname, source, dctx, options, target));
- RETERR(dns_name_fromwire(&rname, source, dctx, options, target));
- isc_buffer_activeregion(source, &sregion);
- isc_buffer_availableregion(target, &tregion);
- if (sregion.length < 20)
- return (ISC_R_UNEXPECTEDEND);
- if (tregion.length < 20)
- return (ISC_R_NOSPACE);
- memcpy(tregion.base, sregion.base, 20);
- isc_buffer_forward(source, 20);
- isc_buffer_add(target, 20);
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- towire_soa(ARGS_TOWIRE) {
- isc_region_t sregion;
- isc_region_t tregion;
- dns_name_t mname;
- dns_name_t rname;
- dns_offsets_t moffsets;
- dns_offsets_t roffsets;
- REQUIRE(rdata->type == 6);
- REQUIRE(rdata->length != 0);
- dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
- dns_name_init(&mname, moffsets);
- dns_name_init(&rname, roffsets);
- dns_rdata_toregion(rdata, &sregion);
- dns_name_fromregion(&mname, &sregion);
- isc_region_consume(&sregion, name_length(&mname));
- RETERR(dns_name_towire(&mname, cctx, target));
- dns_name_fromregion(&rname, &sregion);
- isc_region_consume(&sregion, name_length(&rname));
- RETERR(dns_name_towire(&rname, cctx, target));
- isc_buffer_availableregion(target, &tregion);
- if (tregion.length < 20)
- return (ISC_R_NOSPACE);
- memcpy(tregion.base, sregion.base, 20);
- isc_buffer_add(target, 20);
- return (ISC_R_SUCCESS);
- }
- static inline int
- compare_soa(ARGS_COMPARE) {
- isc_region_t region1;
- isc_region_t region2;
- dns_name_t name1;
- dns_name_t name2;
- int order;
- REQUIRE(rdata1->type == rdata2->type);
- REQUIRE(rdata1->rdclass == rdata2->rdclass);
- REQUIRE(rdata1->type == 6);
- REQUIRE(rdata1->length != 0);
- REQUIRE(rdata2->length != 0);
- dns_name_init(&name1, NULL);
- dns_name_init(&name2, NULL);
- dns_rdata_toregion(rdata1, ®ion1);
- dns_rdata_toregion(rdata2, ®ion2);
- dns_name_fromregion(&name1, ®ion1);
- dns_name_fromregion(&name2, ®ion2);
- order = dns_name_rdatacompare(&name1, &name2);
- if (order != 0)
- return (order);
- isc_region_consume(®ion1, name_length(&name1));
- isc_region_consume(®ion2, name_length(&name2));
- dns_name_init(&name1, NULL);
- dns_name_init(&name2, NULL);
- dns_name_fromregion(&name1, ®ion1);
- dns_name_fromregion(&name2, ®ion2);
- order = dns_name_rdatacompare(&name1, &name2);
- if (order != 0)
- return (order);
- isc_region_consume(®ion1, name_length(&name1));
- isc_region_consume(®ion2, name_length(&name2));
- return (isc_region_compare(®ion1, ®ion2));
- }
- static inline isc_result_t
- fromstruct_soa(ARGS_FROMSTRUCT) {
- dns_rdata_soa_t *soa = source;
- isc_region_t region;
- REQUIRE(type == 6);
- REQUIRE(source != NULL);
- REQUIRE(soa->common.rdtype == type);
- REQUIRE(soa->common.rdclass == rdclass);
- UNUSED(type);
- UNUSED(rdclass);
- dns_name_toregion(&soa->origin, ®ion);
- RETERR(isc_buffer_copyregion(target, ®ion));
- dns_name_toregion(&soa->contact, ®ion);
- RETERR(isc_buffer_copyregion(target, ®ion));
- RETERR(uint32_tobuffer(soa->serial, target));
- RETERR(uint32_tobuffer(soa->refresh, target));
- RETERR(uint32_tobuffer(soa->retry, target));
- RETERR(uint32_tobuffer(soa->expire, target));
- return (uint32_tobuffer(soa->minimum, target));
- }
- static inline isc_result_t
- tostruct_soa(ARGS_TOSTRUCT) {
- isc_region_t region;
- dns_rdata_soa_t *soa = target;
- dns_name_t name;
- isc_result_t result;
- REQUIRE(rdata->type == 6);
- REQUIRE(target != NULL);
- REQUIRE(rdata->length != 0);
- soa->common.rdclass = rdata->rdclass;
- soa->common.rdtype = rdata->type;
- ISC_LINK_INIT(&soa->common, link);
- dns_rdata_toregion(rdata, ®ion);
- dns_name_init(&name, NULL);
- dns_name_fromregion(&name, ®ion);
- isc_region_consume(®ion, name_length(&name));
- dns_name_init(&soa->origin, NULL);
- RETERR(name_duporclone(&name, mctx, &soa->origin));
- dns_name_fromregion(&name, ®ion);
- isc_region_consume(®ion, name_length(&name));
- dns_name_init(&soa->contact, NULL);
- result = name_duporclone(&name, mctx, &soa->contact);
- if (result != ISC_R_SUCCESS)
- goto cleanup;
- soa->serial = uint32_fromregion(®ion);
- isc_region_consume(®ion, 4);
- soa->refresh = uint32_fromregion(®ion);
- isc_region_consume(®ion, 4);
- soa->retry = uint32_fromregion(®ion);
- isc_region_consume(®ion, 4);
- soa->expire = uint32_fromregion(®ion);
- isc_region_consume(®ion, 4);
- soa->minimum = uint32_fromregion(®ion);
- soa->mctx = mctx;
- return (ISC_R_SUCCESS);
- cleanup:
- if (mctx != NULL)
- dns_name_free(&soa->origin, mctx);
- return (ISC_R_NOMEMORY);
- }
- static inline void
- freestruct_soa(ARGS_FREESTRUCT) {
- dns_rdata_soa_t *soa = source;
- REQUIRE(source != NULL);
- REQUIRE(soa->common.rdtype == 6);
- if (soa->mctx == NULL)
- return;
- dns_name_free(&soa->origin, soa->mctx);
- dns_name_free(&soa->contact, soa->mctx);
- soa->mctx = NULL;
- }
- static inline isc_result_t
- additionaldata_soa(ARGS_ADDLDATA) {
- UNUSED(rdata);
- UNUSED(add);
- UNUSED(arg);
- REQUIRE(rdata->type == 6);
- return (ISC_R_SUCCESS);
- }
- static inline isc_result_t
- digest_soa(ARGS_DIGEST) {
- isc_region_t r;
- dns_name_t name;
- REQUIRE(rdata->type == 6);
- dns_rdata_toregion(rdata, &r);
- dns_name_init(&name, NULL);
- dns_name_fromregion(&name, &r);
- RETERR(dns_name_digest(&name, digest, arg));
- isc_region_consume(&r, name_length(&name));
- dns_name_init(&name, NULL);
- dns_name_fromregion(&name, &r);
- RETERR(dns_name_digest(&name, digest, arg));
- isc_region_consume(&r, name_length(&name));
- return ((digest)(arg, &r));
- }
- static inline isc_boolean_t
- checkowner_soa(ARGS_CHECKOWNER) {
- REQUIRE(type == 6);
- UNUSED(name);
- UNUSED(type);
- UNUSED(rdclass);
- UNUSED(wildcard);
- return (ISC_TRUE);
- }
- static inline isc_boolean_t
- checknames_soa(ARGS_CHECKNAMES) {
- isc_region_t region;
- dns_name_t name;
- REQUIRE(rdata->type == 6);
- UNUSED(owner);
- dns_rdata_toregion(rdata, ®ion);
- dns_name_init(&name, NULL);
- dns_name_fromregion(&name, ®ion);
- if (!dns_name_ishostname(&name, ISC_FALSE)) {
- if (bad != NULL)
- dns_name_clone(&name, bad);
- return (ISC_FALSE);
- }
- isc_region_consume(®ion, name_length(&name));
- dns_name_fromregion(&name, ®ion);
- if (!dns_name_ismailbox(&name)) {
- if (bad != NULL)
- dns_name_clone(&name, bad);
- return (ISC_FALSE);
- }
- return (ISC_TRUE);
- }
- static inline int
- casecompare_soa(ARGS_COMPARE) {
- return (compare_soa(rdata1, rdata2));
- }
- #endif /* RDATA_GENERIC_SOA_6_C */