/*

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

 *

 * SPDX-License-Identifier: MPL-2.0

 *

 * 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 https://mozilla.org/MPL/2.0/.

 *

 * See the COPYRIGHT file distributed with this work for additional

 * information regarding copyright ownership.

 */

#ifndef RDATA_GENERIC_TALINK_58_C

#define RDATA_GENERIC_TALINK_58_C

#define RRTYPE_TALINK_ATTRIBUTES 0

static isc_result_t

fromtext_talink(ARGS_FROMTEXT) {

  isc_token_t token;

  isc_buffer_t buffer;

  int i;

  REQUIRE(type == dns_rdatatype_talink);

  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));

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

    RETTOK(dns_name_wirefromtext(&buffer, origin, options, target));

  }

  return ISC_R_SUCCESS;

}

static isc_result_t

totext_talink(ARGS_TOTEXT) {

  isc_region_t dregion;

  dns_name_t prev;

  dns_name_t next;

  dns_name_t prefix;

  unsigned int opts;

  REQUIRE(rdata->type == dns_rdatatype_talink);

  REQUIRE(rdata->length != 0);

  dns_name_init(&prev);

  dns_name_init(&next);

  dns_name_init(&prefix);

  dns_rdata_toregion(rdata, &dregion);

  dns_name_fromregion(&prev, &dregion);

  isc_region_consume(&dregion, name_length(&prev));

  dns_name_fromregion(&next, &dregion);

  isc_region_consume(&dregion, name_length(&next));

  opts = name_prefix(&prev, tctx->origin, &prefix) ? DNS_NAME_OMITFINALDOT

               : 0;

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

  RETERR(str_totext(" ", target));

  opts = name_prefix(&next, tctx->origin, &prefix) ? DNS_NAME_OMITFINALDOT

               : 0;

  return dns_name_totext(&prefix, opts, target);

}

static isc_result_t

fromwire_talink(ARGS_FROMWIRE) {

  dns_name_t prev;

  dns_name_t next;

  REQUIRE(type == dns_rdatatype_talink);

  UNUSED(type);

  UNUSED(rdclass);

  dctx = dns_decompress_setpermitted(dctx, false);

  dns_name_init(&prev);

  dns_name_init(&next);

  RETERR(dns_name_fromwire(&prev, source, dctx, target));

  return dns_name_fromwire(&next, source, dctx, target);

}

static isc_result_t

towire_talink(ARGS_TOWIRE) {

  isc_region_t sregion;

  dns_name_t prev;

  dns_name_t next;

  REQUIRE(rdata->type == dns_rdatatype_talink);

  REQUIRE(rdata->length != 0);

  dns_compress_setpermitted(cctx, false);

  dns_name_init(&prev);

  dns_name_init(&next);

  dns_rdata_toregion(rdata, &sregion);

  dns_name_fromregion(&prev, &sregion);

  isc_region_consume(&sregion, name_length(&prev));

  RETERR(dns_name_towire(&prev, cctx, target));

  dns_name_fromregion(&next, &sregion);

  isc_region_consume(&sregion, name_length(&next));

  return dns_name_towire(&next, cctx, target);

}

static int

compare_talink(ARGS_COMPARE) {

  isc_region_t region1;

  isc_region_t region2;

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

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

  REQUIRE(rdata1->type == dns_rdatatype_talink);

  REQUIRE(rdata1->length != 0);

  REQUIRE(rdata2->length != 0);

  dns_rdata_toregion(rdata1, &region1);

  dns_rdata_toregion(rdata2, &region2);

  return isc_region_compare(&region1, &region2);

}

static isc_result_t

fromstruct_talink(ARGS_FROMSTRUCT) {

  dns_rdata_talink_t *talink = source;

  isc_region_t region;

  REQUIRE(type == dns_rdatatype_talink);

  REQUIRE(talink != NULL);

  REQUIRE(talink->common.rdtype == type);

  REQUIRE(talink->common.rdclass == rdclass);

  UNUSED(type);

  UNUSED(rdclass);

  dns_name_toregion(&talink->prev, &region);

  RETERR(isc_buffer_copyregion(target, &region));

  dns_name_toregion(&talink->next, &region);

  return isc_buffer_copyregion(target, &region);

}

static isc_result_t

tostruct_talink(ARGS_TOSTRUCT) {

  isc_region_t region;

  dns_rdata_talink_t *talink = target;

  dns_name_t name;

  REQUIRE(rdata->type == dns_rdatatype_talink);

  REQUIRE(talink != NULL);

  REQUIRE(rdata->length != 0);

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

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

  dns_rdata_toregion(rdata, &region);

  dns_name_init(&name);

  dns_name_fromregion(&name, &region);

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

  dns_name_init(&talink->prev);

  name_duporclone(&name, mctx, &talink->prev);

  dns_name_fromregion(&name, &region);

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

  dns_name_init(&talink->next);

  name_duporclone(&name, mctx, &talink->next);

  talink->mctx = mctx;

  return ISC_R_SUCCESS;

}

static void

freestruct_talink(ARGS_FREESTRUCT) {

  dns_rdata_talink_t *talink = source;

  REQUIRE(talink != NULL);

  REQUIRE(talink->common.rdtype == dns_rdatatype_talink);

  if (talink->mctx == NULL) {

    return;

  }

  dns_name_free(&talink->prev, talink->mctx);

  dns_name_free(&talink->next, talink->mctx);

  talink->mctx = NULL;

}

static isc_result_t

additionaldata_talink(ARGS_ADDLDATA) {

  REQUIRE(rdata->type == dns_rdatatype_talink);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(add);

  UNUSED(arg);

  return ISC_R_SUCCESS;

}

static isc_result_t

digest_talink(ARGS_DIGEST) {

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_talink);

  dns_rdata_toregion(rdata, &r);

  return (digest)(arg, &r);

}

static bool

checkowner_talink(ARGS_CHECKOWNER) {

  REQUIRE(type == dns_rdatatype_talink);

  UNUSED(name);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(wildcard);

  return true;

}

static bool

checknames_talink(ARGS_CHECKNAMES) {

  REQUIRE(rdata->type == dns_rdatatype_talink);

  UNUSED(bad);

  UNUSED(owner);

  return true;

}

static int

casecompare_talink(ARGS_COMPARE) {

  return compare_talink(rdata1, rdata2);

}

#endif /* RDATA_GENERIC_TALINK_58_C */