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 #ifndef RDATA_GENERIC_LP_107_C 18 #define RDATA_GENERIC_LP_107_C 19 20 #include <string.h> 21 22 #include <isc/net.h> 23 24 static inline isc_result_t 25 totext_lp(ARGS_TOTEXT) { 26 isc_region_t region; 27 dns_name_t name; 28 dns_name_t prefix; 29 isc_boolean_t sub; 30 char buf[sizeof("64000")]; 31 unsigned short num; 32 33 REQUIRE(rdata->type == dns_rdatatype_lp); 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 num = uint16_fromregion(®ion); 41 isc_region_consume(®ion, 2); 42 snprintf(buf, sizeof(buf), "%u", num); 43 RETERR(isc_str_tobuffer(buf, target)); 44 45 RETERR(isc_str_tobuffer(" ", target)); 46 47 dns_name_fromregion(&name, ®ion); 48 sub = name_prefix(&name, tctx->origin, &prefix); 49 return (dns_name_totext(&prefix, sub, target)); 50 } 51 52 static inline isc_result_t 53 fromwire_lp(ARGS_FROMWIRE) { 54 dns_name_t name; 55 isc_region_t sregion; 56 57 REQUIRE(type == dns_rdatatype_lp); 58 59 UNUSED(type); 60 UNUSED(rdclass); 61 62 dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14); 63 64 dns_name_init(&name, NULL); 65 66 isc_buffer_activeregion(source, &sregion); 67 if (sregion.length < 2) 68 return (ISC_R_UNEXPECTEDEND); 69 RETERR(isc_mem_tobuffer(target, sregion.base, 2)); 70 isc_buffer_forward(source, 2); 71 return (dns_name_fromwire(&name, source, dctx, options, target)); 72 } 73 74 static inline isc_result_t 75 towire_lp(ARGS_TOWIRE) { 76 77 REQUIRE(rdata->type == dns_rdatatype_lp); 78 REQUIRE(rdata->length != 0); 79 80 UNUSED(cctx); 81 82 return (isc_mem_tobuffer(target, rdata->data, rdata->length)); 83 } 84 85 #endif /* RDATA_GENERIC_LP_107_C */ 86