1 /* 2 * Copyright (C) Internet Systems Consortium, Inc. ("ISC") 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 10 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 14 * PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* $Id: dname_39.c,v 1.10 2020/02/26 18:38:15 florian Exp $ */ 18 19 /* Reviewed: Wed Mar 15 16:52:38 PST 2000 by explorer */ 20 21 /* RFC2672 */ 22 23 #ifndef RDATA_GENERIC_DNAME_39_C 24 #define RDATA_GENERIC_DNAME_39_C 25 26 static inline isc_result_t 27 totext_dname(ARGS_TOTEXT) { 28 isc_region_t region; 29 dns_name_t name; 30 dns_name_t prefix; 31 isc_boolean_t sub; 32 33 REQUIRE(rdata->type == dns_rdatatype_dname); 34 REQUIRE(rdata->length != 0); 35 36 dns_name_init(&name, NULL); 37 dns_name_init(&prefix, NULL); 38 39 dns_rdata_toregion(rdata, ®ion); 40 dns_name_fromregion(&name, ®ion); 41 42 sub = name_prefix(&name, tctx->origin, &prefix); 43 44 return (dns_name_totext(&prefix, sub, target)); 45 } 46 47 static inline isc_result_t 48 fromwire_dname(ARGS_FROMWIRE) { 49 dns_name_t name; 50 51 REQUIRE(type == dns_rdatatype_dname); 52 53 UNUSED(type); 54 UNUSED(rdclass); 55 56 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); 57 58 dns_name_init(&name, NULL); 59 return(dns_name_fromwire(&name, source, dctx, options, target)); 60 } 61 62 static inline isc_result_t 63 towire_dname(ARGS_TOWIRE) { 64 dns_name_t name; 65 dns_offsets_t offsets; 66 isc_region_t region; 67 68 REQUIRE(rdata->type == dns_rdatatype_dname); 69 REQUIRE(rdata->length != 0); 70 71 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); 72 dns_name_init(&name, offsets); 73 dns_rdata_toregion(rdata, ®ion); 74 dns_name_fromregion(&name, ®ion); 75 76 return (dns_name_towire(&name, cctx, target)); 77 } 78 79 #endif /* RDATA_GENERIC_DNAME_39_C */ 80