/*

 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * See the COPYRIGHT file distributed with this work for additional

 * information regarding copyright ownership.

 */

#ifndef RDATA_GENERIC_SOA_6_C

#define RDATA_GENERIC_SOA_6_C

#define RRTYPE_SOA_ATTRIBUTES (DNS_RDATATYPEATTR_SINGLETON)

static inline isc_result_t

fromtext_soa(ARGS_FROMTEXT) {

	isc_token_t token;

	dns_name_t name;

	isc_buffer_t buffer;

	int i;

	uint32_t n;

	bool ok;

	REQUIRE(type == dns_rdatatype_soa);

	UNUSED(type);

	UNUSED(rdclass);

	UNUSED(callbacks);

	if (origin == NULL)

		origin = dns_rootname;

	for (i = 0; i < 2; i++) {

		RETERR(isc_lex_getmastertoken(lexer, &token,

					      isc_tokentype_string,

					      false));

		dns_name_init(&name, NULL);

		buffer_fromregion(&buffer, &token.value.as_region);

		RETTOK(dns_name_fromtext(&name, &buffer, origin,

					 options, target));

		ok = true;

		if ((options & DNS_RDATA_CHECKNAMES) != 0)

			switch (i) {

			case 0:

				ok = dns_name_ishostname(&name, false);

				break;

			case 1:

				ok = dns_name_ismailbox(&name);

				break;

			}

		if (!ok && (options & DNS_RDATA_CHECKNAMESFAIL) != 0)

			RETTOK(DNS_R_BADNAME);

		if (!ok && callbacks != NULL)

			warn_badname(&name, lexer, callbacks);

	}

	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,

				      false));

	RETERR(uint32_tobuffer(token.value.as_ulong, target));

	for (i = 0; i < 4; i++) {

		RETERR(isc_lex_getmastertoken(lexer, &token,

					      isc_tokentype_string,

					      false));

		RETTOK(dns_counter_fromtext(&token.value.as_textregion, &n);;

		RETERR(uint32_tobuffer(n, target));

	}

	return (ISC_R_SUCCESS);

}

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;

	bool sub;

	int i;

	bool multiline;

	bool comm;

	REQUIRE(rdata->type == dns_rdatatype_soa);

	REQUIRE(rdata->length != 0);

	multiline = (tctx->flags & DNS_STYLEFLAG_MULTILINE);

	if (multiline) {

		comm = ((tctx->flags & DNS_STYLEFLAG_RRCOMMENT) != 0);

	} else {

		comm = 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(str_totext(" ", target));

	sub = name_prefix(&rname, tctx->origin, &prefix);

	RETERR(dns_name_totext(&prefix, sub, target));

	if (multiline)

		RETERR(str_totext(" (" , target));

	RETERR(str_totext(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(str_totext(buf, target));

		if (comm) {

			RETERR(str_totext(soa_fieldnames[i], target));

			/* Print times in week/day/hour/minute/second form */

			if (i >= 1) {

				RETERR(str_totext(" (", target));

				RETERR(dns_ttl_totext(num, true, target));

				RETERR(str_totext(")", target));

			}

			RETERR(str_totext(tctx->linebreak, target));

		} else if (i < 4) {

			RETERR(str_totext(tctx->linebreak, target));

		}

	}

	if (multiline)

		RETERR(str_totext(")", 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 int

compare_soa(ARGS_COMPARE) {

	isc_region_t region1;

	isc_region_t region2;

	dns_name_t name1;

	dns_name_t name2;

	int order;

	REQUIRE(rdata1->type == rdata2->type);

	REQUIRE(rdata1->rdclass == rdata2->rdclass);

	REQUIRE(rdata1->type == dns_rdatatype_soa);

	REQUIRE(rdata1->length != 0);

	REQUIRE(rdata2->length != 0);

	dns_name_init(&name1, NULL);

	dns_name_init(&name2, NULL);

	dns_rdata_toregion(rdata1, &region1);

	dns_rdata_toregion(rdata2, &region2);

	dns_name_fromregion(&name1, &region1);

	dns_name_fromregion(&name2, &region2);

	order = dns_name_rdatacompare(&name1, &name2);

	if (order != 0)

		return (order);

	isc_region_consume(&region1, name_length(&name1));

	isc_region_consume(&region2, name_length(&name2));

	dns_name_init(&name1, NULL);

	dns_name_init(&name2, NULL);

	dns_name_fromregion(&name1, &region1);

	dns_name_fromregion(&name2, &region2);

	order = dns_name_rdatacompare(&name1, &name2);

	if (order != 0)

		return (order);

	isc_region_consume(&region1, name_length(&name1));

	isc_region_consume(&region2, name_length(&name2));

	return (isc_region_compare(&region1, &region2));

}

static inline isc_result_t

fromstruct_soa(ARGS_FROMSTRUCT) {

	dns_rdata_soa_t *soa;

	isc_region_t region;

	REQUIRE(type == dns_rdatatype_soa);

	REQUIRE(((dns_rdata_soa_t *)source) != NULL);

	REQUIRE(((dns_rdata_soa_t *)source)->common.rdtype == type);

	REQUIRE(((dns_rdata_soa_t *)source)->common.rdclass == rdclass);

	soa = source;

	UNUSED(type);

	UNUSED(rdclass);

	dns_name_toregion(&soa->origin, &region);

	RETERR(isc_buffer_copyregion(target, &region));

	dns_name_toregion(&soa->contact, &region);

	RETERR(isc_buffer_copyregion(target, &region));

	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;

	dns_name_t name;

	isc_result_t result;

	REQUIRE(((dns_rdata_soa_t *)target) != NULL);

	REQUIRE(rdata->type == dns_rdatatype_soa);

	REQUIRE(rdata->length != 0);

	soa = target;

	soa->common.rdclass = rdata->rdclass;

	soa->common.rdtype = rdata->type;

	ISC_LINK_INIT(&soa->common, link);

	dns_rdata_toregion(rdata, &region);

	dns_name_init(&name, NULL);

	dns_name_fromregion(&name, &region);

	isc_region_consume(&region, name_length(&name));

	dns_name_init(&soa->origin, NULL);

	RETERR(name_duporclone(&name, mctx, &soa->origin));

	dns_name_fromregion(&name, &region);

	isc_region_consume(&region, name_length(&name));

	dns_name_init(&soa->contact, NULL);

	result = name_duporclone(&name, mctx, &soa->contact);

	if (result != ISC_R_SUCCESS)

		goto cleanup;

	soa->serial = uint32_fromregion(&region);

	isc_region_consume(&region, 4);

	soa->refresh = uint32_fromregion(&region);

	isc_region_consume(&region, 4);

	soa->retry = uint32_fromregion(&region);

	isc_region_consume(&region, 4);

	soa->expire = uint32_fromregion(&region);

	isc_region_consume(&region, 4);

	soa->minimum = uint32_fromregion(&region);

	soa->mctx = mctx;

	return (ISC_R_SUCCESS);

 cleanup:

	if (mctx != NULL)

		dns_name_free(&soa->origin, mctx);

	return (ISC_R_NOMEMORY);

}

static inline void

freestruct_soa(ARGS_FREESTRUCT) {

	dns_rdata_soa_t *soa;

	REQUIRE(((dns_rdata_soa_t *)source) != NULL);

	REQUIRE(((dns_rdata_soa_t *)source)->common.rdtype ==

		dns_rdatatype_soa);

	soa = source;

	if (soa->mctx == NULL)

		return;

	dns_name_free(&soa->origin, soa->mctx);

	dns_name_free(&soa->contact, soa->mctx);

	soa->mctx = NULL;

}

static inline isc_result_t

additionaldata_soa(ARGS_ADDLDATA) {

	UNUSED(rdata);

	UNUSED(add);

	UNUSED(arg);

	REQUIRE(rdata->type == dns_rdatatype_soa);

	return (ISC_R_SUCCESS);

}

static inline isc_result_t

digest_soa(ARGS_DIGEST) {

	isc_region_t r;

	dns_name_t name;

	REQUIRE(rdata->type == dns_rdatatype_soa);

	dns_rdata_toregion(rdata, &r);

	dns_name_init(&name, NULL);

	dns_name_fromregion(&name, &r);

	RETERR(dns_name_digest(&name, digest, arg));

	isc_region_consume(&r, name_length(&name));

	dns_name_init(&name, NULL);

	dns_name_fromregion(&name, &r);

	RETERR(dns_name_digest(&name, digest, arg));

	isc_region_consume(&r, name_length(&name));

	return ((digest)(arg, &r);;

}

static inline bool

checkowner_soa(ARGS_CHECKOWNER) {

	REQUIRE(type == dns_rdatatype_soa);

	UNUSED(name);

	UNUSED(type);

	UNUSED(rdclass);

	UNUSED(wildcard);

	return (true);

}

static inline bool

checknames_soa(ARGS_CHECKNAMES) {

	isc_region_t region;

	dns_name_t name;

	REQUIRE(rdata->type == dns_rdatatype_soa);

	UNUSED(owner);

	dns_rdata_toregion(rdata, &region);

	dns_name_init(&name, NULL);

	dns_name_fromregion(&name, &region);

	if (!dns_name_ishostname(&name, false)) {

		if (bad != NULL)

			dns_name_clone(&name, bad);

		return (false);

	}

	isc_region_consume(&region, name_length(&name));

	dns_name_fromregion(&name, &region);

	if (!dns_name_ismailbox(&name)) {

		if (bad != NULL)

			dns_name_clone(&name, bad);

		return (false);

	}

	return (true);

}

static inline int

casecompare_soa(ARGS_COMPARE) {

	return (compare_soa(rdata1, rdata2));

}

#endif	/* RDATA_GENERIC_SOA_6_C */