/*

 * 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_EUI64_109_C

#define RDATA_GENERIC_EUI64_109_C

#include <string.h>

#define RRTYPE_EUI64_ATTRIBUTES (0)

static isc_result_t

fromtext_eui64(ARGS_FROMTEXT) {

  isc_token_t token;

  unsigned char eui64[8];

  unsigned int l0, l1, l2, l3, l4, l5, l6, l7;

  char buf[sizeof("xx-xx-xx-xx-xx-xx-xx-xx")];

  int n;

  REQUIRE(type == dns_rdatatype_eui64);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(origin);

  UNUSED(options);

  UNUSED(callbacks);

  RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_string,

              false));

  n = sscanf(DNS_AS_STR(token), "%2x-%2x-%2x-%2x-%2x-%2x-%2x-%2x", &l0,

       &l1, &l2, &l3, &l4, &l5, &l6, &l7);

  if (n != 8 || l0 > 255U || l1 > 255U || l2 > 255U || l3 > 255U ||

      l4 > 255U || l5 > 255U || l6 > 255U || l7 > 255U)

  {

    return DNS_R_BADEUI;

  }

  /*

   * Check that leading zeros were present and that there wasn't

   * trailing garbage.

   */

  n = snprintf(buf, sizeof(buf),

         "%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x", l0, l1, l2, l3,

         l4, l5, l6, l7);

  if (n != sizeof(buf) - 1 || strcasecmp(DNS_AS_STR(token), buf) != 0) {

    return DNS_R_BADEUI;

  }

  eui64[0] = l0;

  eui64[1] = l1;

  eui64[2] = l2;

  eui64[3] = l3;

  eui64[4] = l4;

  eui64[5] = l5;

  eui64[6] = l6;

  eui64[7] = l7;

  return mem_tobuffer(target, eui64, sizeof(eui64));

}

static isc_result_t

totext_eui64(ARGS_TOTEXT) {

  char buf[sizeof("xx-xx-xx-xx-xx-xx-xx-xx")];

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(rdata->length == 8);

  UNUSED(tctx);

  (void)snprintf(

    buf, sizeof(buf), "%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x",

    rdata->data[0], rdata->data[1], rdata->data[2], rdata->data[3],

    rdata->data[4], rdata->data[5], rdata->data[6], rdata->data[7]);

  return str_totext(buf, target);

}

static isc_result_t

fromwire_eui64(ARGS_FROMWIRE) {

  isc_region_t sregion;

  REQUIRE(type == dns_rdatatype_eui64);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(dctx);

  isc_buffer_activeregion(source, &sregion);

  if (sregion.length != 8) {

    return DNS_R_FORMERR;

  }

  isc_buffer_forward(source, sregion.length);

  return mem_tobuffer(target, sregion.base, sregion.length);

}

static isc_result_t

towire_eui64(ARGS_TOWIRE) {

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(rdata->length == 8);

  UNUSED(cctx);

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

}

static int

compare_eui64(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_eui64);

  REQUIRE(rdata1->length == 8);

  REQUIRE(rdata2->length == 8);

  dns_rdata_toregion(rdata1, &region1);

  dns_rdata_toregion(rdata2, &region2);

  return isc_region_compare(&region1, &region2);

}

static isc_result_t

fromstruct_eui64(ARGS_FROMSTRUCT) {

  dns_rdata_eui64_t *eui64 = source;

  REQUIRE(type == dns_rdatatype_eui64);

  REQUIRE(eui64 != NULL);

  REQUIRE(eui64->common.rdtype == type);

  REQUIRE(eui64->common.rdclass == rdclass);

  UNUSED(type);

  UNUSED(rdclass);

  return mem_tobuffer(target, eui64->eui64, sizeof(eui64->eui64));

}

static isc_result_t

tostruct_eui64(ARGS_TOSTRUCT) {

  dns_rdata_eui64_t *eui64 = target;

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(eui64 != NULL);

  REQUIRE(rdata->length == 8);

  UNUSED(mctx);

  DNS_RDATACOMMON_INIT(eui64, rdata->type, rdata->rdclass);

  memmove(eui64->eui64, rdata->data, rdata->length);

  return ISC_R_SUCCESS;

}

static void

freestruct_eui64(ARGS_FREESTRUCT) {

  dns_rdata_eui64_t *eui64 = source;

  REQUIRE(eui64 != NULL);

  REQUIRE(eui64->common.rdtype == dns_rdatatype_eui64);

  return;

}

static isc_result_t

additionaldata_eui64(ARGS_ADDLDATA) {

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(rdata->length == 8);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(add);

  UNUSED(arg);

  return ISC_R_SUCCESS;

}

static isc_result_t

digest_eui64(ARGS_DIGEST) {

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(rdata->length == 8);

  dns_rdata_toregion(rdata, &r);

  return (digest)(arg, &r);

}

static bool

checkowner_eui64(ARGS_CHECKOWNER) {

  REQUIRE(type == dns_rdatatype_eui64);

  UNUSED(name);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(wildcard);

  return true;

}

static bool

checknames_eui64(ARGS_CHECKNAMES) {

  REQUIRE(rdata->type == dns_rdatatype_eui64);

  REQUIRE(rdata->length == 8);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(bad);

  return true;

}

static int

casecompare_eui64(ARGS_COMPARE) {

  return compare_eui64(rdata1, rdata2);

}

#endif /* RDATA_GENERIC_EUI64_109_C */