/* $NetBSD: uri_256.c,v 1.7.2.1 2024/02/25 15:47:05 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 GENERIC_URI_256_C #define GENERIC_URI_256_C 1 #define RRTYPE_URI_ATTRIBUTES (0) static isc_result_t fromtext_uri(ARGS_FROMTEXT) { isc_token_t token; REQUIRE(type == dns_rdatatype_uri); UNUSED(type); UNUSED(rdclass); UNUSED(origin); UNUSED(options); UNUSED(callbacks); /* * Priority */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffffU) { RETTOK(ISC_R_RANGE); } RETERR(uint16_tobuffer(token.value.as_ulong, target)); /* * Weight */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number, false)); if (token.value.as_ulong > 0xffffU) { RETTOK(ISC_R_RANGE); } RETERR(uint16_tobuffer(token.value.as_ulong, target)); /* * Target URI */ RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring, false)); if (token.type != isc_tokentype_qstring) { RETTOK(DNS_R_SYNTAX); } RETTOK(multitxt_fromtext(&token.value.as_textregion, target)); return (ISC_R_SUCCESS); } static isc_result_t totext_uri(ARGS_TOTEXT) { isc_region_t region; unsigned short priority, weight; char buf[sizeof("65000 ")]; UNUSED(tctx); REQUIRE(rdata->type == dns_rdatatype_uri); REQUIRE(rdata->length != 0); dns_rdata_toregion(rdata, ®ion); /* * Priority */ priority = uint16_fromregion(®ion); isc_region_consume(®ion, 2); snprintf(buf, sizeof(buf), "%u ", priority); RETERR(str_totext(buf, target)); /* * Weight */ weight = uint16_fromregion(®ion); isc_region_consume(®ion, 2); snprintf(buf, sizeof(buf), "%u ", weight); RETERR(str_totext(buf, target)); /* * Target URI */ RETERR(multitxt_totext(®ion, target)); return (ISC_R_SUCCESS); } static isc_result_t fromwire_uri(ARGS_FROMWIRE) { isc_region_t region; REQUIRE(type == dns_rdatatype_uri); UNUSED(type); UNUSED(rdclass); UNUSED(dctx); UNUSED(options); /* * Priority, weight */ isc_buffer_activeregion(source, ®ion); if (region.length < 4) { return (ISC_R_UNEXPECTEDEND); } /* * Priority, weight and target URI */ isc_buffer_forward(source, region.length); return (mem_tobuffer(target, region.base, region.length)); } static isc_result_t towire_uri(ARGS_TOWIRE) { isc_region_t region; REQUIRE(rdata->type == dns_rdatatype_uri); REQUIRE(rdata->length != 0); UNUSED(cctx); dns_rdata_toregion(rdata, ®ion); return (mem_tobuffer(target, region.base, region.length)); } static int compare_uri(ARGS_COMPARE) { isc_region_t r1; isc_region_t r2; int order; REQUIRE(rdata1->type == rdata2->type); REQUIRE(rdata1->rdclass == rdata2->rdclass); REQUIRE(rdata1->type == dns_rdatatype_uri); REQUIRE(rdata1->length != 0); REQUIRE(rdata2->length != 0); dns_rdata_toregion(rdata1, &r1); dns_rdata_toregion(rdata2, &r2); /* * Priority */ order = memcmp(r1.base, r2.base, 2); if (order != 0) { return (order < 0 ? -1 : 1); } isc_region_consume(&r1, 2); isc_region_consume(&r2, 2); /* * Weight */ order = memcmp(r1.base, r2.base, 2); if (order != 0) { return (order < 0 ? -1 : 1); } isc_region_consume(&r1, 2); isc_region_consume(&r2, 2); return (isc_region_compare(&r1, &r2)); } static isc_result_t fromstruct_uri(ARGS_FROMSTRUCT) { dns_rdata_uri_t *uri = source; REQUIRE(type == dns_rdatatype_uri); REQUIRE(uri != NULL); REQUIRE(uri->common.rdtype == type); REQUIRE(uri->common.rdclass == rdclass); REQUIRE(uri->target != NULL && uri->tgt_len != 0); UNUSED(type); UNUSED(rdclass); /* * Priority */ RETERR(uint16_tobuffer(uri->priority, target)); /* * Weight */ RETERR(uint16_tobuffer(uri->weight, target)); /* * Target URI */ return (mem_tobuffer(target, uri->target, uri->tgt_len)); } static isc_result_t tostruct_uri(ARGS_TOSTRUCT) { dns_rdata_uri_t *uri = target; isc_region_t sr; REQUIRE(rdata->type == dns_rdatatype_uri); REQUIRE(uri != NULL); REQUIRE(rdata->length != 0); uri->common.rdclass = rdata->rdclass; uri->common.rdtype = rdata->type; ISC_LINK_INIT(&uri->common, link); dns_rdata_toregion(rdata, &sr); /* * Priority */ if (sr.length < 2) { return (ISC_R_UNEXPECTEDEND); } uri->priority = uint16_fromregion(&sr); isc_region_consume(&sr, 2); /* * Weight */ if (sr.length < 2) { return (ISC_R_UNEXPECTEDEND); } uri->weight = uint16_fromregion(&sr); isc_region_consume(&sr, 2); /* * Target URI */ uri->tgt_len = sr.length; uri->target = mem_maybedup(mctx, sr.base, sr.length); if (uri->target == NULL) { return (ISC_R_NOMEMORY); } uri->mctx = mctx; return (ISC_R_SUCCESS); } static void freestruct_uri(ARGS_FREESTRUCT) { dns_rdata_uri_t *uri = (dns_rdata_uri_t *)source; REQUIRE(uri != NULL); REQUIRE(uri->common.rdtype == dns_rdatatype_uri); if (uri->mctx == NULL) { return; } if (uri->target != NULL) { isc_mem_free(uri->mctx, uri->target); } uri->mctx = NULL; } static isc_result_t additionaldata_uri(ARGS_ADDLDATA) { REQUIRE(rdata->type == dns_rdatatype_uri); UNUSED(rdata); UNUSED(owner); UNUSED(add); UNUSED(arg); return (ISC_R_SUCCESS); } static isc_result_t digest_uri(ARGS_DIGEST) { isc_region_t r; REQUIRE(rdata->type == dns_rdatatype_uri); dns_rdata_toregion(rdata, &r); return ((digest)(arg, &r)); } static bool checkowner_uri(ARGS_CHECKOWNER) { REQUIRE(type == dns_rdatatype_uri); UNUSED(name); UNUSED(type); UNUSED(rdclass); UNUSED(wildcard); return (true); } static bool checknames_uri(ARGS_CHECKNAMES) { REQUIRE(rdata->type == dns_rdatatype_uri); UNUSED(rdata); UNUSED(owner); UNUSED(bad); return (true); } static int casecompare_uri(ARGS_COMPARE) { return (compare_uri(rdata1, rdata2)); } #endif /* GENERIC_URI_256_C */