/*

 * 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_X25_19_C

#define RDATA_GENERIC_X25_19_C

#define RRTYPE_X25_ATTRIBUTES (0)

static isc_result_t

fromtext_x25(ARGS_FROMTEXT) {

  isc_token_t token;

  unsigned int i;

  REQUIRE(type == dns_rdatatype_x25);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(origin);

  UNUSED(options);

  UNUSED(callbacks);

  RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_qstring,

              false));

  if (token.value.as_textregion.length < 4) {

    RETTOK(DNS_R_SYNTAX);

  }

  for (i = 0; i < token.value.as_textregion.length; i++) {

    if (!isdigit((unsigned char)token.value.as_textregion.base[i]))

    {

      RETTOK(ISC_R_RANGE);

    }

  }

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

  return ISC_R_SUCCESS;

}

static isc_result_t

totext_x25(ARGS_TOTEXT) {

  isc_region_t region;

  UNUSED(tctx);

  REQUIRE(rdata->type == dns_rdatatype_x25);

  REQUIRE(rdata->length != 0);

  dns_rdata_toregion(rdata, &region);

  return txt_totext(&region, true, target);

}

static isc_result_t

fromwire_x25(ARGS_FROMWIRE) {

  isc_region_t sr;

  unsigned int i;

  REQUIRE(type == dns_rdatatype_x25);

  UNUSED(type);

  UNUSED(dctx);

  UNUSED(rdclass);

  isc_buffer_activeregion(source, &sr);

  if (sr.length < 5 || sr.base[0] != (sr.length - 1)) {

    return DNS_R_FORMERR;

  }

  for (i = 1; i < sr.length; i++) {

    if (sr.base[i] < 0x30 || sr.base[i] > 0x39) {

      return DNS_R_FORMERR;

    }

  }

  return txt_fromwire(source, target);

}

static isc_result_t

towire_x25(ARGS_TOWIRE) {

  UNUSED(cctx);

  REQUIRE(rdata->type == dns_rdatatype_x25);

  REQUIRE(rdata->length != 0);

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

}

static int

compare_x25(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_x25);

  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_x25(ARGS_FROMSTRUCT) {

  dns_rdata_x25_t *x25 = source;

  uint8_t i;

  REQUIRE(type == dns_rdatatype_x25);

  REQUIRE(x25 != NULL);

  REQUIRE(x25->common.rdtype == type);

  REQUIRE(x25->common.rdclass == rdclass);

  REQUIRE(x25->x25 != NULL && x25->x25_len != 0);

  UNUSED(type);

  UNUSED(rdclass);

  if (x25->x25_len < 4) {

    return ISC_R_RANGE;

  }

  for (i = 0; i < x25->x25_len; i++) {

    if (!isdigit((unsigned char)x25->x25[i])) {

      return ISC_R_RANGE;

    }

  }

  RETERR(uint8_tobuffer(x25->x25_len, target));

  return mem_tobuffer(target, x25->x25, x25->x25_len);

}

static isc_result_t

tostruct_x25(ARGS_TOSTRUCT) {

  dns_rdata_x25_t *x25 = target;

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_x25);

  REQUIRE(x25 != NULL);

  REQUIRE(rdata->length != 0);

  DNS_RDATACOMMON_INIT(x25, rdata->type, rdata->rdclass);

  dns_rdata_toregion(rdata, &r);

  x25->x25_len = uint8_fromregion(&r);

  isc_region_consume(&r, 1);

  x25->x25 = mem_maybedup(mctx, r.base, x25->x25_len);

  x25->mctx = mctx;

  return ISC_R_SUCCESS;

}

static void

freestruct_x25(ARGS_FREESTRUCT) {

  dns_rdata_x25_t *x25 = source;

  REQUIRE(x25 != NULL);

  REQUIRE(x25->common.rdtype == dns_rdatatype_x25);

  if (x25->mctx == NULL) {

    return;

  }

  if (x25->x25 != NULL) {

    isc_mem_free(x25->mctx, x25->x25);

  }

  x25->mctx = NULL;

}

static isc_result_t

additionaldata_x25(ARGS_ADDLDATA) {

  REQUIRE(rdata->type == dns_rdatatype_x25);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(add);

  UNUSED(arg);

  return ISC_R_SUCCESS;

}

static isc_result_t

digest_x25(ARGS_DIGEST) {

  isc_region_t r;

  REQUIRE(rdata->type == dns_rdatatype_x25);

  dns_rdata_toregion(rdata, &r);

  return (digest)(arg, &r);

}

static bool

checkowner_x25(ARGS_CHECKOWNER) {

  REQUIRE(type == dns_rdatatype_x25);

  UNUSED(name);

  UNUSED(type);

  UNUSED(rdclass);

  UNUSED(wildcard);

  return true;

}

static bool

checknames_x25(ARGS_CHECKNAMES) {

  REQUIRE(rdata->type == dns_rdatatype_x25);

  UNUSED(rdata);

  UNUSED(owner);

  UNUSED(bad);

  return true;

}

static int

casecompare_x25(ARGS_COMPARE) {

  return compare_x25(rdata1, rdata2);

}

#endif /* RDATA_GENERIC_X25_19_C */