/* $NetBSD: talink_58.c,v 1.1.4.2 2024/02/29 11:38:55 martin Exp $ */ /* * Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * SPDX-License-Identifier: MPL-2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, you can obtain one at https://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. */ #ifndef RDATA_GENERIC_TALINK_58_C #define RDATA_GENERIC_TALINK_58_C #define RRTYPE_TALINK_ATTRIBUTES 0 static isc_result_t fromtext_talink(ARGS_FROMTEXT) { isc_token_t token; dns_name_t name; isc_buffer_t buffer; int i; REQUIRE(type == dns_rdatatype_talink); UNUSED(type); UNUSED(rdclass); UNUSED(callbacks); if (origin == NULL) { origin = dns_rootname; } for (i = 0; i < 2; i++) { RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, false)); dns_name_init(&name, NULL); buffer_fromregion(&buffer, &token.value.as_region); RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); } return (ISC_R_SUCCESS); } static isc_result_t totext_talink(ARGS_TOTEXT) { isc_region_t dregion; dns_name_t prev; dns_name_t next; dns_name_t prefix; bool sub; REQUIRE(rdata->type == dns_rdatatype_talink); REQUIRE(rdata->length != 0); dns_name_init(&prev, NULL); dns_name_init(&next, NULL); dns_name_init(&prefix, NULL); dns_rdata_toregion(rdata, &dregion); dns_name_fromregion(&prev, &dregion); isc_region_consume(&dregion, name_length(&prev)); dns_name_fromregion(&next, &dregion); isc_region_consume(&dregion, name_length(&next)); sub = name_prefix(&prev, tctx->origin, &prefix); RETERR(dns_name_totext(&prefix, sub, target)); RETERR(str_totext(" ", target)); sub = name_prefix(&next, tctx->origin, &prefix); return (dns_name_totext(&prefix, sub, target)); } static isc_result_t fromwire_talink(ARGS_FROMWIRE) { dns_name_t prev; dns_name_t next; REQUIRE(type == dns_rdatatype_talink); UNUSED(type); UNUSED(rdclass); dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); dns_name_init(&prev, NULL); dns_name_init(&next, NULL); RETERR(dns_name_fromwire(&prev, source, dctx, options, target)); return (dns_name_fromwire(&next, source, dctx, options, target)); } static isc_result_t towire_talink(ARGS_TOWIRE) { isc_region_t sregion; dns_name_t prev; dns_name_t next; dns_offsets_t moffsets; dns_offsets_t roffsets; REQUIRE(rdata->type == dns_rdatatype_talink); REQUIRE(rdata->length != 0); dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); dns_name_init(&prev, moffsets); dns_name_init(&next, roffsets); dns_rdata_toregion(rdata, &sregion); dns_name_fromregion(&prev, &sregion); isc_region_consume(&sregion, name_length(&prev)); RETERR(dns_name_towire(&prev, cctx, target)); dns_name_fromregion(&next, &sregion); isc_region_consume(&sregion, name_length(&next)); return (dns_name_towire(&next, cctx, target)); } static int compare_talink(ARGS_COMPARE) { isc_region_t region1; isc_region_t region2; REQUIRE(rdata1->type == rdata2->type); REQUIRE(rdata1->rdclass == rdata2->rdclass); REQUIRE(rdata1->type == dns_rdatatype_talink); REQUIRE(rdata1->length != 0); REQUIRE(rdata2->length != 0); dns_rdata_toregion(rdata1, ®ion1); dns_rdata_toregion(rdata2, ®ion2); return (isc_region_compare(®ion1, ®ion2)); } static isc_result_t fromstruct_talink(ARGS_FROMSTRUCT) { dns_rdata_talink_t *talink = source; isc_region_t region; REQUIRE(type == dns_rdatatype_talink); REQUIRE(talink != NULL); REQUIRE(talink->common.rdtype == type); REQUIRE(talink->common.rdclass == rdclass); UNUSED(type); UNUSED(rdclass); dns_name_toregion(&talink->prev, ®ion); RETERR(isc_buffer_copyregion(target, ®ion)); dns_name_toregion(&talink->next, ®ion); return (isc_buffer_copyregion(target, ®ion)); } static isc_result_t tostruct_talink(ARGS_TOSTRUCT) { isc_region_t region; dns_rdata_talink_t *talink = target; dns_name_t name; isc_result_t result; REQUIRE(rdata->type == dns_rdatatype_talink); REQUIRE(talink != NULL); REQUIRE(rdata->length != 0); talink->common.rdclass = rdata->rdclass; talink->common.rdtype = rdata->type; ISC_LINK_INIT(&talink->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(&talink->prev, NULL); RETERR(name_duporclone(&name, mctx, &talink->prev)); dns_name_fromregion(&name, ®ion); isc_region_consume(®ion, name_length(&name)); dns_name_init(&talink->next, NULL); result = name_duporclone(&name, mctx, &talink->next); if (result != ISC_R_SUCCESS) { goto cleanup; } talink->mctx = mctx; return (ISC_R_SUCCESS); cleanup: if (mctx != NULL) { dns_name_free(&talink->prev, mctx); } return (ISC_R_NOMEMORY); } static void freestruct_talink(ARGS_FREESTRUCT) { dns_rdata_talink_t *talink = source; REQUIRE(talink != NULL); REQUIRE(talink->common.rdtype == dns_rdatatype_talink); if (talink->mctx == NULL) { return; } dns_name_free(&talink->prev, talink->mctx); dns_name_free(&talink->next, talink->mctx); talink->mctx = NULL; } static isc_result_t additionaldata_talink(ARGS_ADDLDATA) { UNUSED(rdata); UNUSED(add); UNUSED(arg); REQUIRE(rdata->type == dns_rdatatype_talink); return (ISC_R_SUCCESS); } static isc_result_t digest_talink(ARGS_DIGEST) { isc_region_t r; REQUIRE(rdata->type == dns_rdatatype_talink); dns_rdata_toregion(rdata, &r); return ((digest)(arg, &r)); } static bool checkowner_talink(ARGS_CHECKOWNER) { REQUIRE(type == dns_rdatatype_talink); UNUSED(name); UNUSED(type); UNUSED(rdclass); UNUSED(wildcard); return (true); } static bool checknames_talink(ARGS_CHECKNAMES) { REQUIRE(rdata->type == dns_rdatatype_talink); UNUSED(bad); UNUSED(owner); return (true); } static int casecompare_talink(ARGS_COMPARE) { return (compare_talink(rdata1, rdata2)); } #endif /* RDATA_GENERIC_TALINK_58_C */