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add negative caching result codes

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This commit is contained in:
Bob Halley 1999-10-15 20:49:33 +00:00
parent 6bd80c2c4e
commit cd02757774
3 changed files with 17 additions and 4 deletions
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15
lib/dns/include/dns/db.h
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@ -674,7 +674,7 @@ dns_db_find(dns_db_t *db, dns_name_t *name, dns_dbversion_t *version,
* DNS_R_NXDOMAIN The desired name does not
* exist.
*
* DNS_R_NXRDATASET The desired name exists, but
* DNS_R_NXRRSET The desired name exists, but
* the desired type does not.
*
* DNS_R_NXGLUE The desired name exists, but
@ -694,8 +694,17 @@ dns_db_find(dns_db_t *db, dns_name_t *name, dns_dbversion_t *version,
* use its nameserver(s) of last
* resort (e.g. root hints).
*
* XXX There will be a result codes for negative cache entries
* in the future.
* DNS_R_NCACHENXDOMAIN The desired name does not
* exist. 'node' is bound to the
* cache node with the desired
* name, and 'rdataset' contains
* the negative caching proof.
*
* DNS_R_NCACHENXRRSET The desired type does not
* exist. 'node' is bound to the
* cache node with the desired
* name, and 'rdataset' contains
* the negative caching proof.
*
* Error results:
*

4
lib/dns/include/dns/result.h
View file

@ -98,8 +98,10 @@ typedef isc_result_t dns_result_t; /* XXXRTH for legacy use only */
#define DNS_R_HINT (ISC_RESULTCLASS_DNS + 48)
#define DNS_R_DROP (ISC_RESULTCLASS_DNS + 49)
#define DNS_R_NOTLOADED (ISC_RESULTCLASS_DNS + 50)
#define DNS_R_NCACHENXDOMAIN (ISC_RESULTCLASS_DNS + 51)
#define DNS_R_NCACHENXRRSET (ISC_RESULTCLASS_DNS + 52)
#define DNS_R_NRESULTS 51 /* Number of results */
#define DNS_R_NRESULTS 53 /* Number of results */
/*
* DNS wire format rcodes

2
lib/dns/result.c
View file

@ -78,6 +78,8 @@ static char *text[DNS_R_NRESULTS] = {
"hint", /* 48 */
"drop", /* 49 */
"zone not loaded", /* 50 */
"ncache nxdomain", /* 51 */
"ncache nxrrset", /* 52 */
};
static char *rcode_text[DNS_R_NRCODERESULTS] = {