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: afsdb_18.c,v 1.12 2020/09/14 08:40:43 florian Exp $ */ 18 19 /* Reviewed: Wed Mar 15 14:59:00 PST 2000 by explorer */ 20 21 /* RFC1183 */ 22 23 #ifndef RDATA_GENERIC_AFSDB_18_C 24 #define RDATA_GENERIC_AFSDB_18_C 25 26 static inline isc_result_t 27 totext_afsdb(ARGS_TOTEXT) { 28 dns_name_t name; 29 dns_name_t prefix; 30 isc_region_t region; 31 char buf[sizeof("64000 ")]; 32 int sub; 33 unsigned int num; 34 35 REQUIRE(rdata->type == dns_rdatatype_afsdb); 36 REQUIRE(rdata->length != 0); 37 38 dns_name_init(&name, NULL); 39 dns_name_init(&prefix, NULL); 40 41 dns_rdata_toregion(rdata, ®ion); 42 num = uint16_fromregion(®ion); 43 isc_region_consume(®ion, 2); 44 snprintf(buf, sizeof(buf), "%u ", num); 45 RETERR(isc_str_tobuffer(buf, target)); 46 dns_name_fromregion(&name, ®ion); 47 sub = name_prefix(&name, tctx->origin, &prefix); 48 return (dns_name_totext(&prefix, sub, target)); 49 } 50 51 static inline isc_result_t 52 fromwire_afsdb(ARGS_FROMWIRE) { 53 dns_name_t name; 54 isc_region_t sr; 55 isc_region_t tr; 56 57 REQUIRE(type == dns_rdatatype_afsdb); 58 59 UNUSED(type); 60 UNUSED(rdclass); 61 62 dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE); 63 64 dns_name_init(&name, NULL); 65 66 isc_buffer_activeregion(source, &sr); 67 isc_buffer_availableregion(target, &tr); 68 if (tr.length < 2) 69 return (ISC_R_NOSPACE); 70 if (sr.length < 2) 71 return (ISC_R_UNEXPECTEDEND); 72 memmove(tr.base, sr.base, 2); 73 isc_buffer_forward(source, 2); 74 isc_buffer_add(target, 2); 75 return (dns_name_fromwire(&name, source, dctx, options, target)); 76 } 77 78 static inline isc_result_t 79 towire_afsdb(ARGS_TOWIRE) { 80 isc_region_t tr; 81 isc_region_t sr; 82 dns_name_t name; 83 dns_offsets_t offsets; 84 85 REQUIRE(rdata->type == dns_rdatatype_afsdb); 86 REQUIRE(rdata->length != 0); 87 88 dns_compress_setmethods(cctx, DNS_COMPRESS_NONE); 89 isc_buffer_availableregion(target, &tr); 90 dns_rdata_toregion(rdata, &sr); 91 if (tr.length < 2) 92 return (ISC_R_NOSPACE); 93 memmove(tr.base, sr.base, 2); 94 isc_region_consume(&sr, 2); 95 isc_buffer_add(target, 2); 96 97 dns_name_init(&name, offsets); 98 dns_name_fromregion(&name, &sr); 99 100 return (dns_name_towire(&name, cctx, target)); 101 } 102 103 #endif /* RDATA_GENERIC_AFSDB_18_C */ 104