text: /*
   * Copyright (C) 2015  Internet Systems Consortium, Inc. ("ISC")
   *
   * Permission to use, copy, modify, and/or distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
   * copyright notice and this permission notice appear in all copies.
   *
   * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
   * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
   * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
   * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
   * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
   * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
   * PERFORMANCE OF THIS SOFTWARE.
   */
  
  /* RFC 7477 */
  
  #ifndef RDATA_GENERIC_CSYNC_62_C
  #define RDATA_GENERIC_CSYNC_62_C
  
  #define RRTYPE_CSYNC_ATTRIBUTES 0
  
  static inline isc_result_t
  fromtext_csync(ARGS_FROMTEXT) {
  	isc_token_t token;
  
  	REQUIRE(type == dns_rdatatype_csync);
  
  	UNUSED(type);
  	UNUSED(rdclass);
  	UNUSED(origin);
  	UNUSED(options);
  	UNUSED(callbacks);
  
  	/* Serial. */
  	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  				      ISC_FALSE));
  	RETERR(uint32_tobuffer(token.value.as_ulong, target));
  
  	/* Flags. */
  	RETERR(isc_lex_getmastertoken(lexer, &token, isc_tokentype_number,
  				      ISC_FALSE));
  	if (token.value.as_ulong > 0xffffU)
  		RETTOK(ISC_R_RANGE);
  	RETERR(uint16_tobuffer(token.value.as_ulong, target));
  
  	/* Type Map */
  	return (typemap_fromtext(lexer, target, ISC_TRUE));
  }
  
  static inline isc_result_t
  totext_csync(ARGS_TOTEXT) {
  	unsigned long num;
  	char buf[sizeof("0123456789")];	/* Also TYPE65535 */
  	isc_region_t sr;
  
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  	REQUIRE(rdata->length >= 6);
  
  	UNUSED(tctx);
  
  	dns_rdata_toregion(rdata, &sr);
  
  	num = uint32_fromregion(&sr);
  	isc_region_consume(&sr, 4);
  	sprintf(buf, "%lu", num);
  	RETERR(str_totext(buf, target));
  
  	RETERR(str_totext(" ", target));
  
  	num = uint16_fromregion(&sr);
  	isc_region_consume(&sr, 2);
  	sprintf(buf, "%lu", num);
  	RETERR(str_totext(buf, target));
  
  	return (typemap_totext(&sr, NULL, target));
  }
  
  static /* inline */ isc_result_t
  fromwire_csync(ARGS_FROMWIRE) {
  	isc_region_t sr;
  
  	REQUIRE(type == dns_rdatatype_csync);
  
  	UNUSED(type);
  	UNUSED(rdclass);
  	UNUSED(options);
  	UNUSED(dctx);
  
  	/*
  	 * Serial + Flags
  	 */
  	isc_buffer_activeregion(source, &sr);
  	if (sr.length < 6)
  		return (ISC_R_UNEXPECTEDEND);
  
  	RETERR(mem_tobuffer(target, sr.base, 6));
  	isc_buffer_forward(source, 6);
  	isc_region_consume(&sr, 6);
  
  	RETERR(typemap_test(&sr, ISC_TRUE));
  
  	RETERR(mem_tobuffer(target, sr.base, sr.length));
  	isc_buffer_forward(source, sr.length);
  	return (ISC_R_SUCCESS);
  }
  
  static inline isc_result_t
  towire_csync(ARGS_TOWIRE) {
  
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  	REQUIRE(rdata->length >= 6);
  
  	UNUSED(cctx);
  
  	return (mem_tobuffer(target, rdata->data, rdata->length));
  }
  
  static inline int
  compare_csync(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_csync);
  	REQUIRE(rdata1->length >= 6);
  	REQUIRE(rdata2->length >= 6);
  
  	dns_rdata_toregion(rdata1, &r1);
  	dns_rdata_toregion(rdata2, &r2);
  	return (isc_region_compare(&r1, &r2));
  }
  
  static inline isc_result_t
  fromstruct_csync(ARGS_FROMSTRUCT) {
  	dns_rdata_csync_t *csync = source;
  	isc_region_t region;
  
  	REQUIRE(type == dns_rdatatype_csync);
  	REQUIRE(source != NULL);
  	REQUIRE(csync->common.rdtype == type);
  	REQUIRE(csync->common.rdclass == rdclass);
  	REQUIRE(csync->typebits != NULL || csync->len == 0);
  
  	UNUSED(type);
  	UNUSED(rdclass);
  
  	RETERR(uint32_tobuffer(csync->serial, target));
  	RETERR(uint16_tobuffer(csync->flags, target));
  
  	region.base = csync->typebits;
  	region.length = csync->len;
  	RETERR(typemap_test(&region, ISC_TRUE));
  	return (mem_tobuffer(target, csync->typebits, csync->len));
  }
  
  static inline isc_result_t
  tostruct_csync(ARGS_TOSTRUCT) {
  	isc_region_t region;
  	dns_rdata_csync_t *csync = target;
  
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  	REQUIRE(target != NULL);
  	REQUIRE(rdata->length != 0);
  
  	csync->common.rdclass = rdata->rdclass;
  	csync->common.rdtype = rdata->type;
  	ISC_LINK_INIT(&csync->common, link);
  
  	dns_rdata_toregion(rdata, &region);
  
  	csync->serial = uint32_fromregion(&region);
  	isc_region_consume(&region, 4);
  
  	csync->flags = uint16_fromregion(&region);
  	isc_region_consume(&region, 2);
  
  	csync->len = region.length;
  	csync->typebits = mem_maybedup(mctx, region.base, region.length);
  	if (csync->typebits == NULL)
  		goto cleanup;
  
  	csync->mctx = mctx;
  	return (ISC_R_SUCCESS);
  
   cleanup:
  	return (ISC_R_NOMEMORY);
  }
  
  static inline void
  freestruct_csync(ARGS_FREESTRUCT) {
  	dns_rdata_csync_t *csync = source;
  
  	REQUIRE(source != NULL);
  	REQUIRE(csync->common.rdtype == dns_rdatatype_csync);
  
  	if (csync->mctx == NULL)
  		return;
  
  	if (csync->typebits != NULL)
  		isc_mem_free(csync->mctx, csync->typebits);
  	csync->mctx = NULL;
  }
  
  static inline isc_result_t
  additionaldata_csync(ARGS_ADDLDATA) {
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  
  	UNUSED(rdata);
  	UNUSED(add);
  	UNUSED(arg);
  
  	return (ISC_R_SUCCESS);
  }
  
  static inline isc_result_t
  digest_csync(ARGS_DIGEST) {
  	isc_region_t r;
  
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  
  	dns_rdata_toregion(rdata, &r);
  	return ((digest)(arg, &r));
  }
  
  static inline isc_boolean_t
  checkowner_csync(ARGS_CHECKOWNER) {
  
         REQUIRE(type == dns_rdatatype_csync);
  
         UNUSED(name);
         UNUSED(type);
         UNUSED(rdclass);
         UNUSED(wildcard);
  
         return (ISC_TRUE);
  }
  
  static inline isc_boolean_t
  checknames_csync(ARGS_CHECKNAMES) {
  
  	REQUIRE(rdata->type == dns_rdatatype_csync);
  
  	UNUSED(rdata);
  	UNUSED(owner);
  	UNUSED(bad);
  
  	return (ISC_TRUE);
  }
  
  static inline int
  casecompare_csync(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_csync);
  	REQUIRE(rdata1->length >= 6);
  	REQUIRE(rdata2->length >= 6);
  
  	dns_rdata_toregion(rdata1, &region1);
  	dns_rdata_toregion(rdata2, &region2);
  	return (isc_region_compare(&region1, &region2));
  }
  #endif	/* RDATA_GENERIC_CSYNC_62_C */
  