afsdb_18.c revision 15a44745412679c30a6d022733925af70a38b715
/*
* Copyright (C) 1999, 2000 Internet Software Consortium.
*
* Permission to use, copy, modify, and 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 INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM 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: afsdb_18.c,v 1.30 2000/07/27 09:48:48 tale Exp $ */
/* Reviewed: Wed Mar 15 14:59:00 PST 2000 by explorer */
/* RFC 1183 */
#ifndef RDATA_GENERIC_AFSDB_18_C
#define RDATA_GENERIC_AFSDB_18_C
#define RRTYPE_AFSDB_ATTRIBUTES (0)
static inline isc_result_t
fromtext_afsdb(ARGS_FROMTEXT) {
isc_token_t token;
isc_buffer_t buffer;
dns_name_t name;
UNUSED(rdclass);
REQUIRE(type == 18);
/*
* Subtype.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_number, ISC_FALSE));
if (token.value.as_ulong > 0xffff)
return (ISC_R_RANGE);
RETERR(uint16_tobuffer(token.value.as_ulong, target));
/*
* Hostname.
*/
RETERR(gettoken(lexer, &token, isc_tokentype_string, ISC_FALSE));
dns_name_init(&name, NULL);
buffer_fromregion(&buffer, &token.value.as_region);
origin = (origin != NULL) ? origin : dns_rootname;
return (dns_name_fromtext(&name, &buffer, origin, downcase, target));
}
static inline isc_result_t
totext_afsdb(ARGS_TOTEXT) {
dns_name_t name;
dns_name_t prefix;
isc_region_t region;
char buf[sizeof "64000 "];
isc_boolean_t sub;
unsigned int num;
REQUIRE(rdata->type == 18);
dns_name_init(&name, NULL);
dns_name_init(&prefix, NULL);
dns_rdata_toregion(rdata, &region);
num = uint16_fromregion(&region);
isc_region_consume(&region, 2);
sprintf(buf, "%u ", num);
RETERR(str_totext(buf, target));
dns_name_fromregion(&name, &region);
sub = name_prefix(&name, tctx->origin, &prefix);
return (dns_name_totext(&prefix, sub, target));
}
static inline isc_result_t
fromwire_afsdb(ARGS_FROMWIRE) {
dns_name_t name;
isc_region_t sr;
isc_region_t tr;
UNUSED(rdclass);
REQUIRE(type == 18);
dns_decompress_setmethods(dctx, DNS_COMPRESS_NONE);
dns_name_init(&name, NULL);
isc_buffer_activeregion(source, &sr);
isc_buffer_availableregion(target, &tr);
if (tr.length < 2)
return (ISC_R_NOSPACE);
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
memcpy(tr.base, sr.base, 2);
isc_buffer_forward(source, 2);
isc_buffer_add(target, 2);
return (dns_name_fromwire(&name, source, dctx, downcase, target));
}
static inline isc_result_t
towire_afsdb(ARGS_TOWIRE) {
isc_region_t tr;
isc_region_t sr;
dns_name_t name;
REQUIRE(rdata->type == 18);
dns_compress_setmethods(cctx, DNS_COMPRESS_NONE);
isc_buffer_availableregion(target, &tr);
dns_rdata_toregion(rdata, &sr);
if (tr.length < 2)
return (ISC_R_NOSPACE);
memcpy(tr.base, sr.base, 2);
isc_region_consume(&sr, 2);
isc_buffer_add(target, 2);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &sr);
return (dns_name_towire(&name, cctx, target));
}
static inline int
compare_afsdb(ARGS_COMPARE) {
int result;
dns_name_t name1;
dns_name_t name2;
isc_region_t region1;
isc_region_t region2;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 18);
result = memcmp(rdata1->data, rdata2->data, 2);
if (result != 0)
return (result < 0 ? -1 : 1);
dns_name_init(&name1, NULL);
dns_name_init(&name2, NULL);
dns_rdata_toregion(rdata1, &region1);
dns_rdata_toregion(rdata2, &region2);
isc_region_consume(&region1, 2);
isc_region_consume(&region2, 2);
dns_name_fromregion(&name1, &region1);
dns_name_fromregion(&name2, &region2);
return (dns_name_rdatacompare(&name1, &name2));
}
static inline isc_result_t
fromstruct_afsdb(ARGS_FROMSTRUCT) {
dns_rdata_afsdb_t *afsdb = source;
isc_region_t region;
REQUIRE(type == 18);
REQUIRE(source != NULL);
REQUIRE(afsdb->common.rdclass == rdclass);
REQUIRE(afsdb->common.rdtype == type);
RETERR(uint16_tobuffer(afsdb->subtype, target));
dns_name_toregion(&afsdb->server, &region);
return (isc_buffer_copyregion(target, &region));
}
static inline isc_result_t
tostruct_afsdb(ARGS_TOSTRUCT) {
isc_region_t region;
dns_rdata_afsdb_t *afsdb = target;
dns_name_t name;
REQUIRE(rdata->type == 18);
REQUIRE(target != NULL);
afsdb->common.rdclass = rdata->rdclass;
afsdb->common.rdtype = rdata->type;
ISC_LINK_INIT(&afsdb->common, link);
dns_name_init(&afsdb->server, NULL);
dns_rdata_toregion(rdata, &region);
afsdb->subtype = uint16_fromregion(&region);
isc_region_consume(&region, 2);
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &region);
RETERR(name_duporclone(&name, mctx, &afsdb->server));
afsdb->mctx = mctx;
return (ISC_R_SUCCESS);
}
static inline void
freestruct_afsdb(ARGS_FREESTRUCT) {
dns_rdata_afsdb_t *afsdb = source;
REQUIRE(source != NULL);
REQUIRE(afsdb->common.rdtype == 18);
if (afsdb->mctx == NULL)
return;
dns_name_free(&afsdb->server, afsdb->mctx);
afsdb->mctx = NULL;
}
static inline isc_result_t
additionaldata_afsdb(ARGS_ADDLDATA) {
dns_name_t name;
isc_region_t region;
REQUIRE(rdata->type == 18);
dns_name_init(&name, NULL);
dns_rdata_toregion(rdata, &region);
isc_region_consume(&region, 2);
dns_name_fromregion(&name, &region);
return ((add)(arg, &name, dns_rdatatype_a));
}
static inline isc_result_t
digest_afsdb(ARGS_DIGEST) {
isc_region_t r1, r2;
dns_name_t name;
REQUIRE(rdata->type == 18);
dns_rdata_toregion(rdata, &r1);
r2 = r1;
isc_region_consume(&r2, 2);
r1.length = 2;
RETERR((digest)(arg, &r1));
dns_name_init(&name, NULL);
dns_name_fromregion(&name, &r2);
return (dns_name_digest(&name, digest, arg));
}
#endif /* RDATA_GENERIC_AFSDB_18_C */