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/*
* Copyright (C) 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.
*/
/* $Id: wks_11.c,v 1.14 2020/09/14 08:39:12 florian Exp $ */
/* Reviewed: Fri Mar 17 15:01:49 PST 2000 by explorer */
#ifndef RDATA_IN_1_WKS_11_C
#define RDATA_IN_1_WKS_11_C
#include <netdb.h>
#include <limits.h>
#include <stdlib.h>
static inline isc_result_t
totext_in_wks(ARGS_TOTEXT) {
isc_region_t sr;
unsigned short proto;
char buf[sizeof("65535")];
unsigned int i, j;
UNUSED(tctx);
REQUIRE(rdata->type == dns_rdatatype_wks);
REQUIRE(rdata->rdclass == dns_rdataclass_in);
REQUIRE(rdata->length >= 5);
dns_rdata_toregion(rdata, &sr);
RETERR(inet_totext(AF_INET, &sr, target));
isc_region_consume(&sr, 4);
proto = uint8_fromregion(&sr);
snprintf(buf, sizeof(buf), "%u", proto);
RETERR(isc_str_tobuffer(" ", target));
RETERR(isc_str_tobuffer(buf, target));
isc_region_consume(&sr, 1);
INSIST(sr.length <= 8*1024);
for (i = 0; i < sr.length; i++) {
if (sr.base[i] != 0)
for (j = 0; j < 8; j++)
if ((sr.base[i] & (0x80 >> j)) != 0) {
snprintf(buf, sizeof(buf),
"%u", i * 8 + j);
RETERR(isc_str_tobuffer(" ", target));
RETERR(isc_str_tobuffer(buf, target));
}
}
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromwire_in_wks(ARGS_FROMWIRE) {
isc_region_t sr;
isc_region_t tr;
REQUIRE(type == dns_rdatatype_wks);
REQUIRE(rdclass == dns_rdataclass_in);
UNUSED(type);
UNUSED(dctx);
UNUSED(options);
UNUSED(rdclass);
isc_buffer_activeregion(source, &sr);
isc_buffer_availableregion(target, &tr);
if (sr.length < 5)
return (ISC_R_UNEXPECTEDEND);
if (sr.length > 8 * 1024 + 5)
return (DNS_R_EXTRADATA);
if (tr.length < sr.length)
return (ISC_R_NOSPACE);
memmove(tr.base, sr.base, sr.length);
isc_buffer_add(target, sr.length);
isc_buffer_forward(source, sr.length);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
towire_in_wks(ARGS_TOWIRE) {
isc_region_t sr;
UNUSED(cctx);
REQUIRE(rdata->type == dns_rdatatype_wks);
REQUIRE(rdata->rdclass == dns_rdataclass_in);
REQUIRE(rdata->length != 0);
dns_rdata_toregion(rdata, &sr);
return (isc_mem_tobuffer(target, sr.base, sr.length));
}
#endif /* RDATA_IN_1_WKS_11_C */
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