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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: afsdb_18.c,v 1.3 2020/02/23 19:54:26 jung Exp $ */
/* Reviewed: Wed Mar 15 14:59:00 PST 2000 by explorer */
/* RFC1183 */
#ifndef RDATA_GENERIC_AFSDB_18_C
#define RDATA_GENERIC_AFSDB_18_C
#define RRTYPE_AFSDB_ATTRIBUTES (0)
static inline isc_result_t
totext_afsdb(ARGS_TOTEXT) {
dns_name_t name;
dns_name_t prefix;
isc_region_t region;
char buf[sizeof("64000 ")];
isc_boolean_t sub;
unsigned int num;
REQUIRE(rdata->type == dns_rdatatype_afsdb);
REQUIRE(rdata->length != 0);
dns_name_init(&name, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, ®ion);
num = uint16_fromregion(®ion);
isc_region_consume(®ion, 2);
snprintf(buf, sizeof(buf), "%u ", num);
RETERR(str_totext(buf, target));
dns_name_fromregion(&name, ®ion);
sub = name_prefix(&name, tctx->origin, &prefix);
return (dns_name_totext(&prefix, sub, target));
}
static inline isc_result_t
fromwire_afsdb(ARGS_FROMWIRE) {
dns_name_t name;
isc_region_t sr;
isc_region_t tr;
REQUIRE(type == dns_rdatatype_afsdb);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
dns_name_init(&name, NULL);
isc_buffer_activeregion(source, &sr);
isc_buffer_availableregion(target, &tr);
if (tr.length < 2)
return (ISC_R_NOSPACE);
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
memmove(tr.base, sr.base, 2);
isc_buffer_forward(source, 2);
isc_buffer_add(target, 2);
return (dns_name_fromwire(&name, source, dctx, options, target));
}
static inline isc_result_t
towire_afsdb(ARGS_TOWIRE) {
isc_region_t tr;
isc_region_t sr;
dns_name_t name;
dns_offsets_t offsets;
REQUIRE(rdata->type == dns_rdatatype_afsdb);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
isc_buffer_availableregion(target, &tr);
dns_rdata_toregion(rdata, &sr);
if (tr.length < 2)
return (ISC_R_NOSPACE);
memmove(tr.base, sr.base, 2);
isc_region_consume(&sr, 2);
isc_buffer_add(target, 2);
dns_name_init(&name, offsets);
dns_name_fromregion(&name, &sr);
return (dns_name_towire(&name, cctx, target));
}
static inline int
compare_afsdb(ARGS_COMPARE) {
int result;
dns_name_t name1;
dns_name_t name2;
isc_region_t region1;
isc_region_t region2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == dns_rdatatype_afsdb);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
result = memcmp(rdata1->data, rdata2->data, 2);
if (result != 0)
return (result < 0 ? -1 : 1);
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_rdata_toregion(rdata1, ®ion1);
dns_rdata_toregion(rdata2, ®ion2);
isc_region_consume(®ion1, 2);
isc_region_consume(®ion2, 2);
dns_name_fromregion(&name1, ®ion1);
dns_name_fromregion(&name2, ®ion2);
return (dns_name_rdatacompare(&name1, &name2));
}
static inline isc_result_t
fromstruct_afsdb(ARGS_FROMSTRUCT) {
dns_rdata_afsdb_t *afsdb = source;
isc_region_t region;
REQUIRE(type == dns_rdatatype_afsdb);
REQUIRE(source != NULL);
REQUIRE(afsdb->common.rdclass == rdclass);
REQUIRE(afsdb->common.rdtype == type);
UNUSED(type);
UNUSED(rdclass);
RETERR(uint16_tobuffer(afsdb->subtype, target));
dns_name_toregion(&afsdb->server, ®ion);
return (isc_buffer_copyregion(target, ®ion));
}
static inline isc_result_t
tostruct_afsdb(ARGS_TOSTRUCT) {
isc_region_t region;
dns_rdata_afsdb_t *afsdb = target;
dns_name_t name;
REQUIRE(rdata->type == dns_rdatatype_afsdb);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
afsdb->common.rdclass = rdata->rdclass;
afsdb->common.rdtype = rdata->type;
ISC_LINK_INIT(&afsdb->common, link);
dns_name_init(&afsdb->server, NULL);
dns_rdata_toregion(rdata, ®ion);
afsdb->subtype = uint16_fromregion(®ion);
isc_region_consume(®ion, 2);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, ®ion);
RETERR(name_duporclone(&name, &afsdb->server));
return (ISC_R_SUCCESS);
}
static inline void
freestruct_afsdb(ARGS_FREESTRUCT) {
dns_rdata_afsdb_t *afsdb = source;
REQUIRE(source != NULL);
REQUIRE(afsdb->common.rdtype == dns_rdatatype_afsdb);
dns_name_free(&afsdb->server);
}
static inline isc_boolean_t
checkowner_afsdb(ARGS_CHECKOWNER) {
REQUIRE(type == dns_rdatatype_afsdb);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (ISC_TRUE);
}
static inline int
casecompare_afsdb(ARGS_COMPARE) {
return (compare_afsdb(rdata1, rdata2));
}
#endif /* RDATA_GENERIC_AFSDB_18_C */
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