15185a700Sflorian /*
25185a700Sflorian * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
35185a700Sflorian *
45185a700Sflorian * Permission to use, copy, modify, and/or distribute this software for any
55185a700Sflorian * purpose with or without fee is hereby granted, provided that the above
65185a700Sflorian * copyright notice and this permission notice appear in all copies.
75185a700Sflorian *
85185a700Sflorian * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
95185a700Sflorian * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
105185a700Sflorian * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
115185a700Sflorian * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
125185a700Sflorian * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
135185a700Sflorian * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
145185a700Sflorian * PERFORMANCE OF THIS SOFTWARE.
155185a700Sflorian */
165185a700Sflorian
17*1bf56eb0Sflorian /* $Id: a_1.c,v 1.11 2020/09/14 08:39:12 florian Exp $ */
185185a700Sflorian
195185a700Sflorian /* Reviewed: Thu Mar 16 16:52:50 PST 2000 by bwelling */
205185a700Sflorian
215185a700Sflorian #ifndef RDATA_IN_1_A_1_C
225185a700Sflorian #define RDATA_IN_1_A_1_C
235185a700Sflorian
245185a700Sflorian #include <string.h>
25*1bf56eb0Sflorian #include <sys/socket.h>
265185a700Sflorian
275185a700Sflorian static inline isc_result_t
totext_in_a(ARGS_TOTEXT)285185a700Sflorian totext_in_a(ARGS_TOTEXT) {
295185a700Sflorian isc_region_t region;
305185a700Sflorian
315185a700Sflorian REQUIRE(rdata->type == dns_rdatatype_a);
325185a700Sflorian REQUIRE(rdata->rdclass == dns_rdataclass_in);
335185a700Sflorian REQUIRE(rdata->length == 4);
345185a700Sflorian
355185a700Sflorian UNUSED(tctx);
365185a700Sflorian
375185a700Sflorian dns_rdata_toregion(rdata, ®ion);
385185a700Sflorian return (inet_totext(AF_INET, ®ion, target));
395185a700Sflorian }
405185a700Sflorian
415185a700Sflorian static inline isc_result_t
fromwire_in_a(ARGS_FROMWIRE)425185a700Sflorian fromwire_in_a(ARGS_FROMWIRE) {
435185a700Sflorian isc_region_t sregion;
445185a700Sflorian isc_region_t tregion;
455185a700Sflorian
465185a700Sflorian REQUIRE(type == dns_rdatatype_a);
475185a700Sflorian REQUIRE(rdclass == dns_rdataclass_in);
485185a700Sflorian
495185a700Sflorian UNUSED(type);
505185a700Sflorian UNUSED(dctx);
515185a700Sflorian UNUSED(options);
525185a700Sflorian UNUSED(rdclass);
535185a700Sflorian
545185a700Sflorian isc_buffer_activeregion(source, &sregion);
555185a700Sflorian isc_buffer_availableregion(target, &tregion);
565185a700Sflorian if (sregion.length < 4)
575185a700Sflorian return (ISC_R_UNEXPECTEDEND);
585185a700Sflorian if (tregion.length < 4)
595185a700Sflorian return (ISC_R_NOSPACE);
605185a700Sflorian
615185a700Sflorian memmove(tregion.base, sregion.base, 4);
625185a700Sflorian isc_buffer_forward(source, 4);
635185a700Sflorian isc_buffer_add(target, 4);
645185a700Sflorian return (ISC_R_SUCCESS);
655185a700Sflorian }
665185a700Sflorian
675185a700Sflorian static inline isc_result_t
towire_in_a(ARGS_TOWIRE)685185a700Sflorian towire_in_a(ARGS_TOWIRE) {
695185a700Sflorian isc_region_t region;
705185a700Sflorian
715185a700Sflorian REQUIRE(rdata->type == dns_rdatatype_a);
725185a700Sflorian REQUIRE(rdata->rdclass == dns_rdataclass_in);
735185a700Sflorian REQUIRE(rdata->length == 4);
745185a700Sflorian
755185a700Sflorian UNUSED(cctx);
765185a700Sflorian
775185a700Sflorian isc_buffer_availableregion(target, ®ion);
785185a700Sflorian if (region.length < rdata->length)
795185a700Sflorian return (ISC_R_NOSPACE);
805185a700Sflorian memmove(region.base, rdata->data, rdata->length);
815185a700Sflorian isc_buffer_add(target, 4);
825185a700Sflorian return (ISC_R_SUCCESS);
835185a700Sflorian }
845185a700Sflorian
855185a700Sflorian #endif /* RDATA_IN_1_A_1_C */
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