/*
* Copyright (C) 2011-2013 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: uri_256.c,v 1.2 2011/03/03 14:10:27 fdupont Exp $ */
#ifndef GENERIC_URI_256_C
#define GENERIC_URI_256_C 1
#define RRTYPE_URI_ATTRIBUTES (0)
static inline isc_result_t
fromtext_uri(ARGS_FROMTEXT) {
isc_token_t token;
REQUIRE(type == 256);
UNUSED(type);
UNUSED(rdclass);
UNUSED(origin);
UNUSED(options);
UNUSED(callbacks);
/*
* Priority
*/
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));
/*
* Weight
*/
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));
/*
* Target URI
*/
RETERR(isc_lex_getmastertoken(lexer, &token,
isc_tokentype_qstring, ISC_FALSE));
if (token.type != isc_tokentype_qstring)
RETTOK(DNS_R_SYNTAX);
RETTOK(multitxt_fromtext(&token.value.as_textregion, target));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
totext_uri(ARGS_TOTEXT) {
isc_region_t region;
unsigned short priority, weight;
char buf[sizeof("65000 ")];
UNUSED(tctx);
REQUIRE(rdata->type == 256);
REQUIRE(rdata->length != 0);
dns_rdata_toregion(rdata, &region);
/*
* Priority
*/
priority = uint16_fromregion(&region);
isc_region_consume(&region, 2);
sprintf(buf, "%u ", priority);
RETERR(str_totext(buf, target));
/*
* Weight
*/
weight = uint16_fromregion(&region);
isc_region_consume(&region, 2);
sprintf(buf, "%u ", weight);
RETERR(str_totext(buf, target));
/*
* Target URI
*/
RETERR(multitxt_totext(&region, target));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
fromwire_uri(ARGS_FROMWIRE) {
isc_region_t region;
REQUIRE(type == 256);
UNUSED(type);
UNUSED(rdclass);
UNUSED(dctx);
UNUSED(options);
/*
* Priority, weight
*/
isc_buffer_activeregion(source, &region);
if (region.length < 4)
return (ISC_R_UNEXPECTEDEND);
RETERR(mem_tobuffer(target, region.base, 4));
isc_buffer_forward(source, 4);
/*
* Target URI
*/
RETERR(multitxt_fromwire(source, target));
return (ISC_R_SUCCESS);
}
static inline isc_result_t
towire_uri(ARGS_TOWIRE) {
isc_region_t region;
REQUIRE(rdata->type == 256);
REQUIRE(rdata->length != 0);
UNUSED(cctx);
dns_rdata_toregion(rdata, &region);
return (mem_tobuffer(target, region.base, region.length));
}
static inline int
compare_uri(ARGS_COMPARE) {
isc_region_t r1;
isc_region_t r2;
int order;
REQUIRE(rdata1->type == rdata2->type);
REQUIRE(rdata1->rdclass == rdata2->rdclass);
REQUIRE(rdata1->type == 256);
REQUIRE(rdata1->length != 0);
REQUIRE(rdata2->length != 0);
dns_rdata_toregion(rdata1, &r1);
dns_rdata_toregion(rdata2, &r2);
/*
* Priority
*/
order = memcmp(r1.base, r2.base, 2);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&r1, 2);
isc_region_consume(&r2, 2);
/*
* Weight
*/
order = memcmp(r1.base, r2.base, 2);
if (order != 0)
return (order < 0 ? -1 : 1);
isc_region_consume(&r1, 2);
isc_region_consume(&r2, 2);
return (isc_region_compare(&r1, &r2));
}
static inline isc_result_t
fromstruct_uri(ARGS_FROMSTRUCT) {
dns_rdata_uri_t *uri = source;
isc_region_t region;
isc_uint8_t len;
REQUIRE(type == 256);
REQUIRE(source != NULL);
REQUIRE(uri->common.rdtype == type);
REQUIRE(uri->common.rdclass == rdclass);
REQUIRE(uri->target != NULL && uri->tgt_len != 0);
UNUSED(type);
UNUSED(rdclass);
/*
* Priority
*/
RETERR(uint16_tobuffer(uri->priority, target));
/*
* Weight
*/
RETERR(uint16_tobuffer(uri->weight, target));
/*
* Target URI
*/
len = 255U;
region.base = uri->target;
region.length = uri->tgt_len;
while (region.length > 0) {
REQUIRE(len == 255U);
len = uint8_fromregion(&region);
isc_region_consume(&region, 1);
if (region.length < len)
return (ISC_R_UNEXPECTEDEND);
isc_region_consume(&region, len);
}
return (mem_tobuffer(target, uri->target, uri->tgt_len));
}
static inline isc_result_t
tostruct_uri(ARGS_TOSTRUCT) {
dns_rdata_uri_t *uri = target;
isc_region_t sr;
REQUIRE(rdata->type == 256);
REQUIRE(target != NULL);
REQUIRE(rdata->length != 0);
uri->common.rdclass = rdata->rdclass;
uri->common.rdtype = rdata->type;
ISC_LINK_INIT(&uri->common, link);
dns_rdata_toregion(rdata, &sr);
/*
* Priority
*/
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
uri->priority = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Weight
*/
if (sr.length < 2)
return (ISC_R_UNEXPECTEDEND);
uri->weight = uint16_fromregion(&sr);
isc_region_consume(&sr, 2);
/*
* Target URI
*/
uri->tgt_len = sr.length;
uri->target = mem_maybedup(mctx, sr.base, sr.length);
if (uri->target == NULL)
return (ISC_R_NOMEMORY);
uri->mctx = mctx;
return (ISC_R_SUCCESS);
}
static inline void
freestruct_uri(ARGS_FREESTRUCT) {
dns_rdata_uri_t *uri = (dns_rdata_uri_t *) source;
REQUIRE(source != NULL);
REQUIRE(uri->common.rdtype == 256);
if (uri->mctx == NULL)
return;
if (uri->target != NULL)
isc_mem_free(uri->mctx, uri->target);
uri->mctx = NULL;
}
static inline isc_result_t
additionaldata_uri(ARGS_ADDLDATA) {
REQUIRE(rdata->type == 256);
UNUSED(rdata);
UNUSED(add);
UNUSED(arg);
return (ISC_R_SUCCESS);
}
static inline isc_result_t
digest_uri(ARGS_DIGEST) {
isc_region_t r;
REQUIRE(rdata->type == 256);
dns_rdata_toregion(rdata, &r);
return ((digest)(arg, &r));
}
static inline isc_boolean_t
checkowner_uri(ARGS_CHECKOWNER) {
REQUIRE(type == 256);
UNUSED(name);
UNUSED(type);
UNUSED(rdclass);
UNUSED(wildcard);
return (ISC_TRUE);
}
static inline isc_boolean_t
checknames_uri(ARGS_CHECKNAMES) {
REQUIRE(rdata->type == 256);
UNUSED(rdata);
UNUSED(owner);
UNUSED(bad);
return (ISC_TRUE);
}
#endif /* GENERIC_URI_256_C */