1 /* $NetBSD: md_3.c,v 1.10 2026/01/29 18:37:52 christos Exp $ */ 2 3 /* 4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 5 * 6 * SPDX-License-Identifier: MPL-2.0 7 * 8 * This Source Code Form is subject to the terms of the Mozilla Public 9 * License, v. 2.0. If a copy of the MPL was not distributed with this 10 * file, you can obtain one at https://mozilla.org/MPL/2.0/. 11 * 12 * See the COPYRIGHT file distributed with this work for additional 13 * information regarding copyright ownership. 14 */ 15 16 #ifndef RDATA_GENERIC_MD_3_C 17 #define RDATA_GENERIC_MD_3_C 18 19 #define RRTYPE_MD_ATTRIBUTES (0) 20 21 static isc_result_t 22 fromtext_md(ARGS_FROMTEXT) { 23 isc_token_t token; 24 dns_name_t name; 25 isc_buffer_t buffer; 26 27 REQUIRE(type == dns_rdatatype_md); 28 29 UNUSED(type); 30 UNUSED(rdclass); 31 UNUSED(callbacks); 32 33 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 34 false)); 35 36 dns_name_init(&name, NULL); 37 buffer_fromregion(&buffer, &token.value.as_region); 38 if (origin == NULL) { 39 origin = dns_rootname; 40 } 41 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); 42 return ISC_R_SUCCESS; 43 } 44 45 static isc_result_t 46 totext_md(ARGS_TOTEXT) { 47 isc_region_t region; 48 dns_name_t name; 49 dns_name_t prefix; 50 unsigned int opts; 51 52 REQUIRE(rdata->type == dns_rdatatype_md); 53 REQUIRE(rdata->length != 0); 54 55 dns_name_init(&name, NULL); 56 dns_name_init(&prefix, NULL); 57 58 dns_rdata_toregion(rdata, ®ion); 59 dns_name_fromregion(&name, ®ion); 60 61 opts = name_prefix(&name, tctx->origin, &prefix) ? DNS_NAME_OMITFINALDOT 62 : 0; 63 return dns_name_totext(&prefix, opts, target); 64 } 65 66 static isc_result_t 67 fromwire_md(ARGS_FROMWIRE) { 68 dns_name_t name; 69 70 REQUIRE(type == dns_rdatatype_md); 71 72 UNUSED(type); 73 UNUSED(rdclass); 74 75 dctx = dns_decompress_setpermitted(dctx, true); 76 77 dns_name_init(&name, NULL); 78 return dns_name_fromwire(&name, source, dctx, target); 79 } 80 81 static isc_result_t 82 towire_md(ARGS_TOWIRE) { 83 dns_name_t name; 84 dns_offsets_t offsets; 85 isc_region_t region; 86 87 REQUIRE(rdata->type == dns_rdatatype_md); 88 REQUIRE(rdata->length != 0); 89 90 dns_compress_setpermitted(cctx, true); 91 92 dns_name_init(&name, offsets); 93 dns_rdata_toregion(rdata, ®ion); 94 dns_name_fromregion(&name, ®ion); 95 96 return dns_name_towire(&name, cctx, target, NULL); 97 } 98 99 static int 100 compare_md(ARGS_COMPARE) { 101 dns_name_t name1; 102 dns_name_t name2; 103 isc_region_t region1; 104 isc_region_t region2; 105 106 REQUIRE(rdata1->type == rdata2->type); 107 REQUIRE(rdata1->rdclass == rdata2->rdclass); 108 REQUIRE(rdata1->type == dns_rdatatype_md); 109 REQUIRE(rdata1->length != 0); 110 REQUIRE(rdata2->length != 0); 111 112 dns_name_init(&name1, NULL); 113 dns_name_init(&name2, NULL); 114 115 dns_rdata_toregion(rdata1, ®ion1); 116 dns_rdata_toregion(rdata2, ®ion2); 117 118 dns_name_fromregion(&name1, ®ion1); 119 dns_name_fromregion(&name2, ®ion2); 120 121 return dns_name_rdatacompare(&name1, &name2); 122 } 123 124 static isc_result_t 125 fromstruct_md(ARGS_FROMSTRUCT) { 126 dns_rdata_md_t *md = source; 127 isc_region_t region; 128 129 REQUIRE(type == dns_rdatatype_md); 130 REQUIRE(md != NULL); 131 REQUIRE(md->common.rdtype == type); 132 REQUIRE(md->common.rdclass == rdclass); 133 134 UNUSED(type); 135 UNUSED(rdclass); 136 137 dns_name_toregion(&md->md, ®ion); 138 return isc_buffer_copyregion(target, ®ion); 139 } 140 141 static isc_result_t 142 tostruct_md(ARGS_TOSTRUCT) { 143 dns_rdata_md_t *md = target; 144 isc_region_t r; 145 dns_name_t name; 146 147 REQUIRE(rdata->type == dns_rdatatype_md); 148 REQUIRE(md != NULL); 149 REQUIRE(rdata->length != 0); 150 151 DNS_RDATACOMMON_INIT(md, rdata->type, rdata->rdclass); 152 153 dns_name_init(&name, NULL); 154 dns_rdata_toregion(rdata, &r); 155 dns_name_fromregion(&name, &r); 156 dns_name_init(&md->md, NULL); 157 name_duporclone(&name, mctx, &md->md); 158 md->mctx = mctx; 159 return ISC_R_SUCCESS; 160 } 161 162 static void 163 freestruct_md(ARGS_FREESTRUCT) { 164 dns_rdata_md_t *md = source; 165 166 REQUIRE(md != NULL); 167 REQUIRE(md->common.rdtype == dns_rdatatype_md); 168 169 if (md->mctx == NULL) { 170 return; 171 } 172 173 dns_name_free(&md->md, md->mctx); 174 md->mctx = NULL; 175 } 176 177 static isc_result_t 178 additionaldata_md(ARGS_ADDLDATA) { 179 dns_name_t name; 180 dns_offsets_t offsets; 181 isc_region_t region; 182 183 REQUIRE(rdata->type == dns_rdatatype_md); 184 185 UNUSED(owner); 186 187 dns_name_init(&name, offsets); 188 dns_rdata_toregion(rdata, ®ion); 189 dns_name_fromregion(&name, ®ion); 190 191 return (add)(arg, &name, dns_rdatatype_a, NULL DNS__DB_FILELINE); 192 } 193 194 static isc_result_t 195 digest_md(ARGS_DIGEST) { 196 isc_region_t r; 197 dns_name_t name; 198 199 REQUIRE(rdata->type == dns_rdatatype_md); 200 201 dns_rdata_toregion(rdata, &r); 202 dns_name_init(&name, NULL); 203 dns_name_fromregion(&name, &r); 204 205 return dns_name_digest(&name, digest, arg); 206 } 207 208 static bool 209 checkowner_md(ARGS_CHECKOWNER) { 210 REQUIRE(type == dns_rdatatype_md); 211 212 UNUSED(name); 213 UNUSED(type); 214 UNUSED(rdclass); 215 UNUSED(wildcard); 216 217 return true; 218 } 219 220 static bool 221 checknames_md(ARGS_CHECKNAMES) { 222 REQUIRE(rdata->type == dns_rdatatype_md); 223 224 UNUSED(rdata); 225 UNUSED(owner); 226 UNUSED(bad); 227 228 return true; 229 } 230 231 static int 232 casecompare_md(ARGS_COMPARE) { 233 return compare_md(rdata1, rdata2); 234 } 235 236 #endif /* RDATA_GENERIC_MD_3_C */ 237
Indexes created Sat Feb 28 05:31:39 UTC 2026