1 /* $NetBSD: mg_8.c,v 1.5 2020/05/24 19:46:24 christos Exp $ */ 2 3 /* 4 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 5 * 6 * This Source Code Form is subject to the terms of the Mozilla Public 7 * License, v. 2.0. If a copy of the MPL was not distributed with this 8 * file, You can obtain one at http://mozilla.org/MPL/2.0/. 9 * 10 * See the COPYRIGHT file distributed with this work for additional 11 * information regarding copyright ownership. 12 */ 13 14 #ifndef RDATA_GENERIC_MG_8_C 15 #define RDATA_GENERIC_MG_8_C 16 17 #define RRTYPE_MG_ATTRIBUTES (0) 18 19 static inline isc_result_t 20 fromtext_mg(ARGS_FROMTEXT) { 21 isc_token_t token; 22 dns_name_t name; 23 isc_buffer_t buffer; 24 25 REQUIRE(type == dns_rdatatype_mg); 26 27 UNUSED(type); 28 UNUSED(rdclass); 29 UNUSED(callbacks); 30 31 RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string, 32 false)); 33 34 dns_name_init(&name, NULL); 35 buffer_fromregion(&buffer, &token.value.as_region); 36 if (origin == NULL) { 37 origin = dns_rootname; 38 } 39 RETTOK(dns_name_fromtext(&name, &buffer, origin, options, target)); 40 return (ISC_R_SUCCESS); 41 } 42 43 static inline isc_result_t 44 totext_mg(ARGS_TOTEXT) { 45 isc_region_t region; 46 dns_name_t name; 47 dns_name_t prefix; 48 bool sub; 49 50 REQUIRE(rdata->type == dns_rdatatype_mg); 51 REQUIRE(rdata->length != 0); 52 53 dns_name_init(&name, NULL); 54 dns_name_init(&prefix, NULL); 55 56 dns_rdata_toregion(rdata, ®ion); 57 dns_name_fromregion(&name, ®ion); 58 59 sub = name_prefix(&name, tctx->origin, &prefix); 60 61 return (dns_name_totext(&prefix, sub, target)); 62 } 63 64 static inline isc_result_t 65 fromwire_mg(ARGS_FROMWIRE) { 66 dns_name_t name; 67 68 REQUIRE(type == dns_rdatatype_mg); 69 70 UNUSED(type); 71 UNUSED(rdclass); 72 73 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); 74 75 dns_name_init(&name, NULL); 76 return (dns_name_fromwire(&name, source, dctx, options, target)); 77 } 78 79 static inline isc_result_t 80 towire_mg(ARGS_TOWIRE) { 81 dns_name_t name; 82 dns_offsets_t offsets; 83 isc_region_t region; 84 85 REQUIRE(rdata->type == dns_rdatatype_mg); 86 REQUIRE(rdata->length != 0); 87 88 dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14); 89 90 dns_name_init(&name, offsets); 91 dns_rdata_toregion(rdata, ®ion); 92 dns_name_fromregion(&name, ®ion); 93 94 return (dns_name_towire(&name, cctx, target)); 95 } 96 97 static inline int 98 compare_mg(ARGS_COMPARE) { 99 dns_name_t name1; 100 dns_name_t name2; 101 isc_region_t region1; 102 isc_region_t region2; 103 104 REQUIRE(rdata1->type == rdata2->type); 105 REQUIRE(rdata1->rdclass == rdata2->rdclass); 106 REQUIRE(rdata1->type == dns_rdatatype_mg); 107 REQUIRE(rdata1->length != 0); 108 REQUIRE(rdata2->length != 0); 109 110 dns_name_init(&name1, NULL); 111 dns_name_init(&name2, NULL); 112 113 dns_rdata_toregion(rdata1, ®ion1); 114 dns_rdata_toregion(rdata2, ®ion2); 115 116 dns_name_fromregion(&name1, ®ion1); 117 dns_name_fromregion(&name2, ®ion2); 118 119 return (dns_name_rdatacompare(&name1, &name2)); 120 } 121 122 static inline isc_result_t 123 fromstruct_mg(ARGS_FROMSTRUCT) { 124 dns_rdata_mg_t *mg = source; 125 isc_region_t region; 126 127 REQUIRE(type == dns_rdatatype_mg); 128 REQUIRE(mg != NULL); 129 REQUIRE(mg->common.rdtype == type); 130 REQUIRE(mg->common.rdclass == rdclass); 131 132 UNUSED(type); 133 UNUSED(rdclass); 134 135 dns_name_toregion(&mg->mg, ®ion); 136 return (isc_buffer_copyregion(target, ®ion)); 137 } 138 139 static inline isc_result_t 140 tostruct_mg(ARGS_TOSTRUCT) { 141 isc_region_t region; 142 dns_rdata_mg_t *mg = target; 143 dns_name_t name; 144 145 REQUIRE(rdata->type == dns_rdatatype_mg); 146 REQUIRE(mg != NULL); 147 REQUIRE(rdata->length != 0); 148 149 mg->common.rdclass = rdata->rdclass; 150 mg->common.rdtype = rdata->type; 151 ISC_LINK_INIT(&mg->common, link); 152 153 dns_name_init(&name, NULL); 154 dns_rdata_toregion(rdata, ®ion); 155 dns_name_fromregion(&name, ®ion); 156 dns_name_init(&mg->mg, NULL); 157 RETERR(name_duporclone(&name, mctx, &mg->mg)); 158 mg->mctx = mctx; 159 return (ISC_R_SUCCESS); 160 } 161 162 static inline void 163 freestruct_mg(ARGS_FREESTRUCT) { 164 dns_rdata_mg_t *mg = source; 165 166 REQUIRE(mg != NULL); 167 REQUIRE(mg->common.rdtype == dns_rdatatype_mg); 168 169 if (mg->mctx == NULL) { 170 return; 171 } 172 dns_name_free(&mg->mg, mg->mctx); 173 mg->mctx = NULL; 174 } 175 176 static inline isc_result_t 177 additionaldata_mg(ARGS_ADDLDATA) { 178 REQUIRE(rdata->type == dns_rdatatype_mg); 179 180 UNUSED(add); 181 UNUSED(arg); 182 UNUSED(rdata); 183 184 return (ISC_R_SUCCESS); 185 } 186 187 static inline isc_result_t 188 digest_mg(ARGS_DIGEST) { 189 isc_region_t r; 190 dns_name_t name; 191 192 REQUIRE(rdata->type == dns_rdatatype_mg); 193 194 dns_rdata_toregion(rdata, &r); 195 dns_name_init(&name, NULL); 196 dns_name_fromregion(&name, &r); 197 198 return (dns_name_digest(&name, digest, arg)); 199 } 200 201 static inline bool 202 checkowner_mg(ARGS_CHECKOWNER) { 203 REQUIRE(type == dns_rdatatype_mg); 204 205 UNUSED(type); 206 UNUSED(rdclass); 207 UNUSED(wildcard); 208 209 return (dns_name_ismailbox(name)); 210 } 211 212 static inline bool 213 checknames_mg(ARGS_CHECKNAMES) { 214 REQUIRE(rdata->type == dns_rdatatype_mg); 215 216 UNUSED(rdata); 217 UNUSED(owner); 218 UNUSED(bad); 219 220 return (true); 221 } 222 223 static inline int 224 casecompare_mg(ARGS_COMPARE) { 225 return (compare_mg(rdata1, rdata2)); 226 } 227 228 #endif /* RDATA_GENERIC_MG_8_C */ 229