diff options
Diffstat (limited to 'usr.sbin/bind/lib/dns/resolver.c')
| -rw-r--r-- | usr.sbin/bind/lib/dns/resolver.c | 51 |
1 files changed, 38 insertions, 13 deletions
diff --git a/usr.sbin/bind/lib/dns/resolver.c b/usr.sbin/bind/lib/dns/resolver.c index de107807d1c..54b00fedfc2 100644 --- a/usr.sbin/bind/lib/dns/resolver.c +++ b/usr.sbin/bind/lib/dns/resolver.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 1999-2002 Internet Software Consortium. + * Copyright (C) 1999-2003 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 @@ -15,7 +15,7 @@ * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -/* $ISC: resolver.c,v 1.218.2.12 2002/07/15 02:28:07 marka Exp $ */ +/* $ISC: resolver.c,v 1.218.2.12.4.4 2003/02/18 03:32:01 marka Exp $ */ #include <config.h> @@ -646,7 +646,11 @@ fctx_addopt(dns_message_t *message) { /* * Set EXTENDED-RCODE, VERSION, and Z to 0, and the DO bit to 1. */ +#ifdef ISC_RFC2535 rdatalist->ttl = DNS_MESSAGEEXTFLAG_DO; +#else + rdatalist->ttl = 0; +#endif /* * No EDNS options. @@ -3501,16 +3505,28 @@ noanswer_response(fetchctx_t *fctx, dns_name_t *oqname) { * * Only one set of NS RRs is allowed. */ - if (ns_name != NULL && name != ns_name) - return (DNS_R_FORMERR); - ns_name = name; + if (rdataset->type == + dns_rdatatype_ns) { + if (ns_name != NULL && + name != ns_name) + return (DNS_R_FORMERR); + ns_name = name; + } name->attributes |= DNS_NAMEATTR_CACHE; rdataset->attributes |= DNS_RDATASETATTR_CACHE; rdataset->trust = dns_trust_glue; ns_rdataset = rdataset; - } else if (type == dns_rdatatype_soa || + } + } + for (rdataset = ISC_LIST_HEAD(name->list); + rdataset != NULL; + rdataset = ISC_LIST_NEXT(rdataset, link)) { + type = rdataset->type; + if (type == dns_rdatatype_sig) + type = rdataset->covers; + if (type == dns_rdatatype_soa || type == dns_rdatatype_nxt) { /* * SOA, SIG SOA, NXT, or SIG NXT. @@ -3524,11 +3540,18 @@ noanswer_response(fetchctx_t *fctx, dns_name_t *oqname) { return (DNS_R_FORMERR); soa_name = name; } - negative_response = ISC_TRUE; - name->attributes |= - DNS_NAMEATTR_NCACHE; - rdataset->attributes |= - DNS_RDATASETATTR_NCACHE; + if (ns_name == NULL) { + negative_response = ISC_TRUE; + name->attributes |= + DNS_NAMEATTR_NCACHE; + rdataset->attributes |= + DNS_RDATASETATTR_NCACHE; + } else { + name->attributes |= + DNS_NAMEATTR_CACHE; + rdataset->attributes |= + DNS_RDATASETATTR_CACHE; + } if (aa) rdataset->trust = dns_trust_authauthority; @@ -3846,8 +3869,8 @@ answer_response(fetchctx_t *fctx) { for (rdataset = ISC_LIST_HEAD(name->list); rdataset != NULL; rdataset = ISC_LIST_NEXT(rdataset, link)) { + isc_boolean_t found_dname = ISC_FALSE; found = ISC_FALSE; - want_chaining = ISC_FALSE; aflag = 0; if (rdataset->type == dns_rdatatype_dname) { /* @@ -3874,6 +3897,8 @@ answer_response(fetchctx_t *fctx) { want_chaining = ISC_FALSE; } else if (result != ISC_R_SUCCESS) return (result); + else + found_dname = ISC_TRUE; } else if (rdataset->type == dns_rdatatype_sig && rdataset->covers == dns_rdatatype_dname) { @@ -3919,7 +3944,7 @@ answer_response(fetchctx_t *fctx) { /* * DNAME chaining. */ - if (want_chaining) { + if (found_dname) { /* * Copy the the dname into the * qname fixed name. |