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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: soa_6.c,v 1.8 2020/02/26 18:47:59 florian Exp $ */
/* Reviewed: Thu Mar 16 15:18:32 PST 2000 by explorer */
#ifndef RDATA_GENERIC_SOA_6_C
#define RDATA_GENERIC_SOA_6_C
static const char *soa_fieldnames[5] = {
"serial", "refresh", "retry", "expire", "minimum"
};
static inline isc_result_t
totext_soa(ARGS_TOTEXT) {
isc_region_t dregion;
dns_name_t mname;
dns_name_t rname;
dns_name_t prefix;
isc_boolean_t sub;
int i;
isc_boolean_t multiline;
isc_boolean_t comm;
REQUIRE(rdata->type == dns_rdatatype_soa);
REQUIRE(rdata->length != 0);
multiline = ISC_TF((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0);
if (multiline)
comm = ISC_TF((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0);
else
comm = ISC_FALSE;
dns_name_init(&mname, NULL);
dns_name_init(&rname, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, &dregion);
dns_name_fromregion(&mname, &dregion);
isc_region_consume(&dregion, name_length(&mname));
dns_name_fromregion(&rname, &dregion);
isc_region_consume(&dregion, name_length(&rname));
sub = name_prefix(&mname, tctx->origin, &prefix);
RETERR(dns_name_totext(&prefix, sub, target));
RETERR(isc_str_tobuffer(" ", target));
sub = name_prefix(&rname, tctx->origin, &prefix);
RETERR(dns_name_totext(&prefix, sub, target));
if (multiline)
RETERR(isc_str_tobuffer(" (" , target));
RETERR(isc_str_tobuffer(tctx->linebreak, target));
for (i = 0; i < 5; i++) {
char buf[sizeof("0123456789 ; ")];
unsigned long num;
num = uint32_fromregion(&dregion);
isc_region_consume(&dregion, 4);
snprintf(buf, sizeof(buf), comm ? "%-10lu ; " : "%lu", num);
RETERR(isc_str_tobuffer(buf, target));
if (comm) {
RETERR(isc_str_tobuffer(soa_fieldnames[i], target));
/* Print times in week/day/hour/minute/second form */
if (i >= 1) {
RETERR(isc_str_tobuffer(" (", target));
RETERR(dns_ttl_totext(num, ISC_TRUE, target));
RETERR(isc_str_tobuffer(")", target));
}
RETERR(isc_str_tobuffer(tctx->linebreak, target));
} else if (i < 4) {
RETERR(isc_str_tobuffer(tctx->linebreak, target));
}
}
if (multiline)
RETERR(isc_str_tobuffer(")", target));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromwire_soa(ARGS_FROMWIRE) {
dns_name_t mname;
dns_name_t rname;
isc_region_t sregion;
isc_region_t tregion;
REQUIRE(type == dns_rdatatype_soa);
UNUSED(type);
UNUSED(rdclass);
dns_decompress_setmethods(dctx, DNS_COMPRESS_GLOBAL14);
dns_name_init(&mname, NULL);
dns_name_init(&rname, NULL);
RETERR(dns_name_fromwire(&mname, source, dctx, options, target));
RETERR(dns_name_fromwire(&rname, source, dctx, options, target));
isc_buffer_activeregion(source, &sregion);
isc_buffer_availableregion(target, &tregion);
if (sregion.length < 20)
return (ISC_R_UNEXPECTEDEND);
if (tregion.length < 20)
return (ISC_R_NOSPACE);
memmove(tregion.base, sregion.base, 20);
isc_buffer_forward(source, 20);
isc_buffer_add(target, 20);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
towire_soa(ARGS_TOWIRE) {
isc_region_t sregion;
isc_region_t tregion;
dns_name_t mname;
dns_name_t rname;
dns_offsets_t moffsets;
dns_offsets_t roffsets;
REQUIRE(rdata->type == dns_rdatatype_soa);
REQUIRE(rdata->length != 0);
dns_compress_setmethods(cctx, DNS_COMPRESS_GLOBAL14);
dns_name_init(&mname, moffsets);
dns_name_init(&rname, roffsets);
dns_rdata_toregion(rdata, &sregion);
dns_name_fromregion(&mname, &sregion);
isc_region_consume(&sregion, name_length(&mname));
RETERR(dns_name_towire(&mname, cctx, target));
dns_name_fromregion(&rname, &sregion);
isc_region_consume(&sregion, name_length(&rname));
RETERR(dns_name_towire(&rname, cctx, target));
isc_buffer_availableregion(target, &tregion);
if (tregion.length < 20)
return (ISC_R_NOSPACE);
memmove(tregion.base, sregion.base, 20);
isc_buffer_add(target, 20);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromstruct_soa(ARGS_FROMSTRUCT) {
dns_rdata_soa_t *soa = source;
isc_region_t region;
REQUIRE(type == dns_rdatatype_soa);
REQUIRE(source != NULL);
REQUIRE(soa->common.rdtype == type);
REQUIRE(soa->common.rdclass == rdclass);
UNUSED(type);
UNUSED(rdclass);
dns_name_toregion(&soa->origin, ®ion);
RETERR(isc_buffer_copyregion(target, ®ion));
dns_name_toregion(&soa->contact, ®ion);
RETERR(isc_buffer_copyregion(target, ®ion));
RETERR(uint32_tobuffer(soa->serial, target));
RETERR(uint32_tobuffer(soa->refresh, target));
RETERR(uint32_tobuffer(soa->retry, target));
RETERR(uint32_tobuffer(soa->expire, target));
return (uint32_tobuffer(soa->minimum, target));
}
static inline isc_result_t
tostruct_soa(ARGS_TOSTRUCT) {
isc_region_t region;
dns_rdata_soa_t *soa = target;
dns_name_t name;
isc_result_t result;
REQUIRE(rdata->type == dns_rdatatype_soa);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
soa->common.rdclass = rdata->rdclass;
soa->common.rdtype = rdata->type;
ISC_LINK_INIT(&soa->common, link);
dns_rdata_toregion(rdata, ®ion);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, ®ion);
isc_region_consume(®ion, name_length(&name));
dns_name_init(&soa->origin, NULL);
RETERR(name_duporclone(&name, &soa->origin));
dns_name_fromregion(&name, ®ion);
isc_region_consume(®ion, name_length(&name));
dns_name_init(&soa->contact, NULL);
result = name_duporclone(&name, &soa->contact);
if (result != ISC_R_SUCCESS)
goto cleanup;
soa->serial = uint32_fromregion(®ion);
isc_region_consume(®ion, 4);
soa->refresh = uint32_fromregion(®ion);
isc_region_consume(®ion, 4);
soa->retry = uint32_fromregion(®ion);
isc_region_consume(®ion, 4);
soa->expire = uint32_fromregion(®ion);
isc_region_consume(®ion, 4);
soa->minimum = uint32_fromregion(®ion);
return (ISC_R_SUCCESS);
cleanup:
dns_name_free(&soa->origin);
return (ISC_R_NOMEMORY);
}
static inline void
freestruct_soa(ARGS_FREESTRUCT) {
dns_rdata_soa_t *soa = source;
REQUIRE(source != NULL);
REQUIRE(soa->common.rdtype == dns_rdatatype_soa);
dns_name_free(&soa->origin);
dns_name_free(&soa->contact);
}
#endif /* RDATA_GENERIC_SOA_6_C */
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