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static bool
addressForRecord(OF_KINDOF(OFDNSResourceRecord *) record,
const OFSocketAddress **address, OFSocketAddressFamily addressFamily)
{
switch ([record recordType]) {
#ifdef OF_HAVE_IPV6
case OF_DNS_RECORD_TYPE_AAAA:
case OFDNSRecordTypeAAAA:
if (addressFamily != OFSocketAddressFamilyIPv6 &&
addressFamily != OFSocketAddressFamilyAny)
return false;
break;
#endif
case OF_DNS_RECORD_TYPE_A:
case OFDNSRecordTypeA:
if (addressFamily != OFSocketAddressFamilyIPv4 &&
addressFamily != OFSocketAddressFamilyAny)
return false;
break;
default:
return false;
}
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domainName = _host;
#ifdef OF_HAVE_IPV6
if (_addressFamily == OFSocketAddressFamilyIPv6 ||
_addressFamily == OFSocketAddressFamilyAny) {
OFDNSQuery *query = [OFDNSQuery
queryWithDomainName: domainName
DNSClass: OF_DNS_CLASS_IN
recordType: OF_DNS_RECORD_TYPE_AAAA];
DNSClass: OFDNSClassIN
recordType: OFDNSRecordTypeAAAA];
_numExpectedResponses++;
[_resolver asyncPerformQuery: query
runLoopMode: _runLoopMode
delegate: self];
}
#endif
if (_addressFamily == OFSocketAddressFamilyIPv4 ||
_addressFamily == OFSocketAddressFamilyAny) {
OFDNSQuery *query = [OFDNSQuery
queryWithDomainName: domainName
DNSClass: OF_DNS_CLASS_IN
recordType: OF_DNS_RECORD_TYPE_A];
DNSClass: OFDNSClassIN
recordType: OFDNSRecordTypeA];
_numExpectedResponses++;
[_resolver asyncPerformQuery: query
runLoopMode: _runLoopMode
delegate: self];
}
}
- (void)resolver: (OFDNSResolver *)resolver
didPerformQuery: (OFDNSQuery *)query
response: (OFDNSResponse *)response
exception: (id)exception
{
_numExpectedResponses--;
if ([exception isKindOfClass: [OFDNSQueryFailedException class]] &&
[exception error] == OF_DNS_RESOLVER_ERROR_SERVER_NAME_ERROR &&
[exception errorCode] == OFDNSResolverErrorCodeServerNameError &&
!_isFQDN && _numExpectedResponses == 0 && _addresses.count == 0 &&
_searchDomainIndex + 1 < _settings->_searchDomains.count) {
_searchDomainIndex++;
[self sendQueries];
return;
}
for (OF_KINDOF(OFDNSResourceRecord *) record in
[response.answerRecords objectForKey: query.domainName]) {
const OFSocketAddress *address = NULL;
OFDNSQuery *CNAMEQuery;
if ([record DNSClass] != OF_DNS_CLASS_IN)
if ([record DNSClass] != OFDNSClassIN)
continue;
if (addressForRecord(record, &address, _addressFamily)) {
[_addresses addItem: address];
continue;
}
if ([record recordType] != OF_DNS_RECORD_TYPE_CNAME)
if ([record recordType] != OFDNSRecordTypeCNAME)
continue;
/* FIXME: Check if it's already in answers */
CNAMEQuery = [OFDNSQuery queryWithDomainName: [record alias]
DNSClass: OF_DNS_CLASS_IN
DNSClass: OFDNSClassIN
recordType: query.recordType];
_numExpectedResponses++;
[_resolver asyncPerformQuery: CNAMEQuery
runLoopMode: _runLoopMode
delegate: self];
}
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_addresses = nil;
if ([exception isKindOfClass:
[OFDNSQueryFailedException class]])
exception = [OFResolveHostFailedException
exceptionWithHost: _host
addressFamily: _addressFamily
error: [exception error]];
errorCode: [exception errorCode]];
if (exception == nil)
exception = [OFResolveHostFailedException
exceptionWithHost: _host
addressFamily: _addressFamily
error: OF_DNS_RESOLVER_ERROR_NO_RESULT];
errorCode: OFDNSResolverErrorCodeNoResult];
} else
exception = nil;
if ([_delegate respondsToSelector:
@selector(resolver:didResolveHost:addresses:exception:)])
[_delegate resolver: _resolver
didResolveHost: _host
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[addresses makeImmutable];
if (addresses.count == 0) {
addresses = nil;
exception = [OFResolveHostFailedException
exceptionWithHost: _host
addressFamily: _addressFamily
error: OF_DNS_RESOLVER_ERROR_NO_RESULT];
errorCode: OFDNSResolverErrorCodeNoResult];
}
callDelegateInMode(_runLoopMode, _delegate, _resolver, _host,
addresses, exception);
objc_autoreleasePoolPop(pool);
return;
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