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Unknown rrs would not be parsed correctly when in an rdataset with known rrs.

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This commit is contained in:
Brian Wellington 2000-11-19 23:19:23 +00:00
parent 1275a72e8d
commit 2ea44ff332
1 changed files with 18 additions and 9 deletions
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27
lib/dns/rdata.c
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@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rdata.c,v 1.126 2000/11/19 22:12:39 bwelling Exp $ */
/* $Id: rdata.c,v 1.127 2000/11/19 23:19:23 bwelling Exp $ */
#include <config.h>
#include <ctype.h>
@ -534,10 +534,11 @@ dns_rdata_towire(dns_rdata_t *rdata, dns_compress_t *cctx,
}
static isc_result_t
rdata_valid(isc_buffer_t *buf, dns_rdataclass_t rdclass, dns_rdatatype_t type,
isc_mem_t *mctx)
rdata_valid(isc_buffer_t *buf, unsigned int len, dns_rdataclass_t rdclass,
dns_rdatatype_t type, isc_mem_t *mctx)
{
isc_buffer_t *tbuf = NULL;
isc_buffer_t rdatabuf;
dns_decompress_t dctx;
dns_rdata_t rdata;
isc_region_t r;
@ -547,10 +548,15 @@ rdata_valid(isc_buffer_t *buf, dns_rdataclass_t rdclass, dns_rdatatype_t type,
dns_rdata_init(&rdata);
result = isc_buffer_allocate(mctx, &tbuf, isc_buffer_usedlength(buf));
if (result == ISC_R_SUCCESS) {
isc_buffer_setactive(buf, isc_buffer_usedlength(buf));
result = dns_rdata_fromwire(&rdata, rdclass, type, buf, &dctx,
ISC_FALSE, tbuf);
isc_buffer_clear(buf);
isc_buffer_remainingregion(buf, &r);
isc_buffer_init(&rdatabuf, r.base, r.length);
isc_buffer_add(&rdatabuf, r.length);
INSIST(r.length >= len);
isc_buffer_forward(&rdatabuf, r.length - len);
isc_buffer_setactive(&rdatabuf, len);
result = dns_rdata_fromwire(&rdata, rdclass, type, &rdatabuf,
&dctx, ISC_FALSE, tbuf);
isc_buffer_subtract(buf, len);
if (result == ISC_R_SUCCESS) {
isc_buffer_usedregion(tbuf, &r);
(void)isc_buffer_copyregion(buf, &r);
@ -603,8 +609,11 @@ dns_rdata_fromtext(dns_rdata_t *rdata, dns_rdataclass_t rdclass,
token.value.as_ulong);
if (result == ISC_R_SUCCESS && dns_rdatatype_ismeta(type))
result = DNS_R_METATYPE;
if (result == ISC_R_SUCCESS && dns_rdatatype_isknown(type))
result = rdata_valid(target, rdclass, type, mctx);
if (result == ISC_R_SUCCESS && dns_rdatatype_isknown(type)) {
unsigned int len = isc_buffer_used(target) -
isc_buffer_used(&st);
result = rdata_valid(target, len, rdclass, type, mctx);
}
} else {
isc_lex_ungettoken(lexer, &token);