/*

 * 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.

 */

/* RFC1183 */

#ifndef RDATA_GENERIC_ISDN_20_C

#define RDATA_GENERIC_ISDN_20_C

#define RRTYPE_ISDN_ATTRIBUTES (0)

static isc_result_t

fromtext_isdn(ARGS_FROMTEXT) {

  isc_token_t token;

  REQUIRE(type == dns_rdatatype_isdn);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(origin);

  UNUSED(options);

  UNUSED(callbacks);

  /* ISDN-address */

  RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,

              false));

  RETTOK(txt_fromtext(&token.value.as_textregion, target));

  /* sa: optional */

  RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,

              true));

  if (token.type != isc_tokentype_string &&

      token.type != isc_tokentype_qstring)

  {

    isc_lex_ungettoken(lexer, &token);

    return ISC_R_SUCCESS;

  }

  RETTOK(txt_fromtext(&token.value.as_textregion, target));

  return ISC_R_SUCCESS;

}

static isc_result_t

totext_isdn(ARGS_TOTEXT) {

  isc_region_t region;

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  REQUIRE(rdata->length != 0);

  UNUSED(tctx);

  dns_rdata_toregion(rdata, &region);

  RETERR(txt_totext(&region, true, target));

  if (region.length == 0) {

    return ISC_R_SUCCESS;

  }

  RETERR(str_totext(" ", target));

  return txt_totext(&region, true, target);

}

static isc_result_t

fromwire_isdn(ARGS_FROMWIRE) {

  REQUIRE(type == dns_rdatatype_isdn);

  UNUSED(type);

  UNUSED(dctx);

  UNUSED(rdclass);

  RETERR(txt_fromwire(source, target));

  if (buffer_empty(source)) {

    return ISC_R_SUCCESS;

  }

  return txt_fromwire(source, target);

}

static isc_result_t

towire_isdn(ARGS_TOWIRE) {

  UNUSED(cctx);

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  REQUIRE(rdata->length != 0);

  return mem_tobuffer(target, rdata->data, rdata->length);

}

static int

compare_isdn(ARGS_COMPARE) {

  isc_region_t r1;

  isc_region_t r2;

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

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

  REQUIRE(rdata1->type == dns_rdatatype_isdn);

  REQUIRE(rdata1->length != 0);

  REQUIRE(rdata2->length != 0);

  dns_rdata_toregion(rdata1, &r1);

  dns_rdata_toregion(rdata2, &r2);

  return isc_region_compare(&r1, &r2);

}

static isc_result_t

fromstruct_isdn(ARGS_FROMSTRUCT) {

  dns_rdata_isdn_t *isdn = source;

  REQUIRE(type == dns_rdatatype_isdn);

  REQUIRE(isdn != NULL);

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

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

  UNUSED(type);

  UNUSED(rdclass);

  RETERR(uint8_tobuffer(isdn->isdn_len, target));

  RETERR(mem_tobuffer(target, isdn->isdn, isdn->isdn_len));

  if (isdn->subaddress == NULL) {

    return ISC_R_SUCCESS;

  }

  RETERR(uint8_tobuffer(isdn->subaddress_len, target));

  return mem_tobuffer(target, isdn->subaddress, isdn->subaddress_len);

}

static isc_result_t

tostruct_isdn(ARGS_TOSTRUCT) {

  dns_rdata_isdn_t *isdn = target;

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  REQUIRE(isdn != NULL);

  REQUIRE(rdata->length != 0);

  DNS_RDATACOMMON_INIT(isdn, rdata->type, rdata->rdclass);

  dns_rdata_toregion(rdata, &r);

  isdn->isdn_len = uint8_fromregion(&r);

  isc_region_consume(&r, 1);

  isdn->isdn = mem_maybedup(mctx, r.base, isdn->isdn_len);

  isc_region_consume(&r, isdn->isdn_len);

  if (r.length == 0) {

    isdn->subaddress_len = 0;

    isdn->subaddress = NULL;

  } else {

    isdn->subaddress_len = uint8_fromregion(&r);

    isc_region_consume(&r, 1);

    isdn->subaddress = mem_maybedup(mctx, r.base,

            isdn->subaddress_len);

  }

  isdn->mctx = mctx;

  return ISC_R_SUCCESS;

}

static void

freestruct_isdn(ARGS_FREESTRUCT) {

  dns_rdata_isdn_t *isdn = source;

  REQUIRE(isdn != NULL);

  if (isdn->mctx == NULL) {

    return;

  }

  if (isdn->isdn != NULL) {

    isc_mem_free(isdn->mctx, isdn->isdn);

  }

  if (isdn->subaddress != NULL) {

    isc_mem_free(isdn->mctx, isdn->subaddress);

  }

  isdn->mctx = NULL;

}

static isc_result_t

additionaldata_isdn(ARGS_ADDLDATA) {

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(add);

  UNUSED(arg);

  return ISC_R_SUCCESS;

}

static isc_result_t

digest_isdn(ARGS_DIGEST) {

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  dns_rdata_toregion(rdata, &r);

  return (digest)(arg, &r);

}

static bool

checkowner_isdn(ARGS_CHECKOWNER) {

  REQUIRE(type == dns_rdatatype_isdn);

  UNUSED(name);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(wildcard);

  return true;

}

static bool

checknames_isdn(ARGS_CHECKNAMES) {

  REQUIRE(rdata->type == dns_rdatatype_isdn);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(bad);

  return true;

}

static int

casecompare_isdn(ARGS_COMPARE) {

  return compare_isdn(rdata1, rdata2);

}

#endif /* RDATA_GENERIC_ISDN_20_C */