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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: a_1.c,v 1.6 2020/02/24 17:43:53 florian Exp $ */
/* Reviewed: Thu Mar 16 16:52:50 PST 2000 by bwelling */
#ifndef RDATA_IN_1_A_1_C
#define RDATA_IN_1_A_1_C
#include <string.h>
#include <isc/net.h>
#define RRTYPE_A_ATTRIBUTES (0)
static inline isc_result_t
totext_in_a(ARGS_TOTEXT) {
isc_region_t region;
REQUIRE(rdata->type == dns_rdatatype_a);
REQUIRE(rdata->rdclass == dns_rdataclass_in);
REQUIRE(rdata->length == 4);
UNUSED(tctx);
dns_rdata_toregion(rdata, ®ion);
return (inet_totext(AF_INET, ®ion, target));
}
static inline isc_result_t
fromwire_in_a(ARGS_FROMWIRE) {
isc_region_t sregion;
isc_region_t tregion;
REQUIRE(type == dns_rdatatype_a);
REQUIRE(rdclass == dns_rdataclass_in);
UNUSED(type);
UNUSED(dctx);
UNUSED(options);
UNUSED(rdclass);
isc_buffer_activeregion(source, &sregion);
isc_buffer_availableregion(target, &tregion);
if (sregion.length < 4)
return (ISC_R_UNEXPECTEDEND);
if (tregion.length < 4)
return (ISC_R_NOSPACE);
memmove(tregion.base, sregion.base, 4);
isc_buffer_forward(source, 4);
isc_buffer_add(target, 4);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
towire_in_a(ARGS_TOWIRE) {
isc_region_t region;
REQUIRE(rdata->type == dns_rdatatype_a);
REQUIRE(rdata->rdclass == dns_rdataclass_in);
REQUIRE(rdata->length == 4);
UNUSED(cctx);
isc_buffer_availableregion(target, ®ion);
if (region.length < rdata->length)
return (ISC_R_NOSPACE);
memmove(region.base, rdata->data, rdata->length);
isc_buffer_add(target, 4);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromstruct_in_a(ARGS_FROMSTRUCT) {
dns_rdata_in_a_t *a = source;
uint32_t n;
REQUIRE(type == dns_rdatatype_a);
REQUIRE(rdclass == dns_rdataclass_in);
REQUIRE(source != NULL);
REQUIRE(a->common.rdtype == type);
REQUIRE(a->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
n = ntohl(a->in_addr.s_addr);
return (uint32_tobuffer(n, target));
}
static inline isc_result_t
tostruct_in_a(ARGS_TOSTRUCT) {
dns_rdata_in_a_t *a = target;
uint32_t n;
isc_region_t region;
REQUIRE(rdata->type == dns_rdatatype_a);
REQUIRE(rdata->rdclass == dns_rdataclass_in);
REQUIRE(rdata->length == 4);
a->common.rdclass = rdata->rdclass;
a->common.rdtype = rdata->type;
ISC_LINK_INIT(&a->common, link);
dns_rdata_toregion(rdata, ®ion);
n = uint32_fromregion(®ion);
a->in_addr.s_addr = htonl(n);
return (ISC_R_SUCCESS);
}
#endif /* RDATA_IN_1_A_1_C */
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