1 /* $NetBSD: hinfo_13.c,v 1.7 2022/09/23 12:15:31 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_HINFO_13_C 17 #define RDATA_GENERIC_HINFO_13_C 18 19 #define RRTYPE_HINFO_ATTRIBUTES (0) 20 21 static isc_result_t 22 fromtext_hinfo(ARGS_FROMTEXT) { 23 isc_token_t token; 24 int i; 25 26 UNUSED(type); 27 UNUSED(rdclass); 28 UNUSED(origin); 29 UNUSED(options); 30 UNUSED(callbacks); 31 32 REQUIRE(type == dns_rdatatype_hinfo); 33 34 for (i = 0; i < 2; i++) { 35 RETERR(isc_lex_getmastertoken(lexer, &token, 36 isc_tokentype_qstring, false)); 37 RETTOK(txt_fromtext(&token.value.as_textregion, target)); 38 } 39 return (ISC_R_SUCCESS); 40 } 41 42 static isc_result_t 43 totext_hinfo(ARGS_TOTEXT) { 44 isc_region_t region; 45 46 UNUSED(tctx); 47 48 REQUIRE(rdata->type == dns_rdatatype_hinfo); 49 REQUIRE(rdata->length != 0); 50 51 dns_rdata_toregion(rdata, ®ion); 52 RETERR(txt_totext(®ion, true, target)); 53 RETERR(str_totext(" ", target)); 54 return (txt_totext(®ion, true, target)); 55 } 56 57 static isc_result_t 58 fromwire_hinfo(ARGS_FROMWIRE) { 59 REQUIRE(type == dns_rdatatype_hinfo); 60 61 UNUSED(type); 62 UNUSED(dctx); 63 UNUSED(rdclass); 64 UNUSED(options); 65 66 RETERR(txt_fromwire(source, target)); 67 return (txt_fromwire(source, target)); 68 } 69 70 static isc_result_t 71 towire_hinfo(ARGS_TOWIRE) { 72 UNUSED(cctx); 73 74 REQUIRE(rdata->type == dns_rdatatype_hinfo); 75 REQUIRE(rdata->length != 0); 76 77 return (mem_tobuffer(target, rdata->data, rdata->length)); 78 } 79 80 static int 81 compare_hinfo(ARGS_COMPARE) { 82 isc_region_t r1; 83 isc_region_t r2; 84 85 REQUIRE(rdata1->type == rdata2->type); 86 REQUIRE(rdata1->rdclass == rdata2->rdclass); 87 REQUIRE(rdata1->type == dns_rdatatype_hinfo); 88 REQUIRE(rdata1->length != 0); 89 REQUIRE(rdata2->length != 0); 90 91 dns_rdata_toregion(rdata1, &r1); 92 dns_rdata_toregion(rdata2, &r2); 93 return (isc_region_compare(&r1, &r2)); 94 } 95 96 static isc_result_t 97 fromstruct_hinfo(ARGS_FROMSTRUCT) { 98 dns_rdata_hinfo_t *hinfo = source; 99 100 REQUIRE(type == dns_rdatatype_hinfo); 101 REQUIRE(hinfo != NULL); 102 REQUIRE(hinfo->common.rdtype == type); 103 REQUIRE(hinfo->common.rdclass == rdclass); 104 105 UNUSED(type); 106 UNUSED(rdclass); 107 108 RETERR(uint8_tobuffer(hinfo->cpu_len, target)); 109 RETERR(mem_tobuffer(target, hinfo->cpu, hinfo->cpu_len)); 110 RETERR(uint8_tobuffer(hinfo->os_len, target)); 111 return (mem_tobuffer(target, hinfo->os, hinfo->os_len)); 112 } 113 114 static isc_result_t 115 tostruct_hinfo(ARGS_TOSTRUCT) { 116 dns_rdata_hinfo_t *hinfo = target; 117 isc_region_t region; 118 119 REQUIRE(rdata->type == dns_rdatatype_hinfo); 120 REQUIRE(hinfo != NULL); 121 REQUIRE(rdata->length != 0); 122 123 hinfo->common.rdclass = rdata->rdclass; 124 hinfo->common.rdtype = rdata->type; 125 ISC_LINK_INIT(&hinfo->common, link); 126 127 dns_rdata_toregion(rdata, ®ion); 128 hinfo->cpu_len = uint8_fromregion(®ion); 129 isc_region_consume(®ion, 1); 130 hinfo->cpu = mem_maybedup(mctx, region.base, hinfo->cpu_len); 131 if (hinfo->cpu == NULL) { 132 return (ISC_R_NOMEMORY); 133 } 134 isc_region_consume(®ion, hinfo->cpu_len); 135 136 hinfo->os_len = uint8_fromregion(®ion); 137 isc_region_consume(®ion, 1); 138 hinfo->os = mem_maybedup(mctx, region.base, hinfo->os_len); 139 if (hinfo->os == NULL) { 140 goto cleanup; 141 } 142 143 hinfo->mctx = mctx; 144 return (ISC_R_SUCCESS); 145 146 cleanup: 147 if (mctx != NULL && hinfo->cpu != NULL) { 148 isc_mem_free(mctx, hinfo->cpu); 149 } 150 return (ISC_R_NOMEMORY); 151 } 152 153 static void 154 freestruct_hinfo(ARGS_FREESTRUCT) { 155 dns_rdata_hinfo_t *hinfo = source; 156 157 REQUIRE(hinfo != NULL); 158 159 if (hinfo->mctx == NULL) { 160 return; 161 } 162 163 if (hinfo->cpu != NULL) { 164 isc_mem_free(hinfo->mctx, hinfo->cpu); 165 } 166 if (hinfo->os != NULL) { 167 isc_mem_free(hinfo->mctx, hinfo->os); 168 } 169 hinfo->mctx = NULL; 170 } 171 172 static isc_result_t 173 additionaldata_hinfo(ARGS_ADDLDATA) { 174 REQUIRE(rdata->type == dns_rdatatype_hinfo); 175 176 UNUSED(add); 177 UNUSED(arg); 178 UNUSED(rdata); 179 180 return (ISC_R_SUCCESS); 181 } 182 183 static isc_result_t 184 digest_hinfo(ARGS_DIGEST) { 185 isc_region_t r; 186 187 REQUIRE(rdata->type == dns_rdatatype_hinfo); 188 189 dns_rdata_toregion(rdata, &r); 190 191 return ((digest)(arg, &r)); 192 } 193 194 static bool 195 checkowner_hinfo(ARGS_CHECKOWNER) { 196 REQUIRE(type == dns_rdatatype_hinfo); 197 198 UNUSED(name); 199 UNUSED(type); 200 UNUSED(rdclass); 201 UNUSED(wildcard); 202 203 return (true); 204 } 205 206 static bool 207 checknames_hinfo(ARGS_CHECKNAMES) { 208 REQUIRE(rdata->type == dns_rdatatype_hinfo); 209 210 UNUSED(rdata); 211 UNUSED(owner); 212 UNUSED(bad); 213 214 return (true); 215 } 216 217 static int 218 casecompare_hinfo(ARGS_COMPARE) { 219 return (compare_hinfo(rdata1, rdata2)); 220 } 221 #endif /* RDATA_GENERIC_HINFO_13_C */ 222