/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
* 2018
* Jonathan Schleifer <js@heap.zone>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE.QPL included in
* the packaging of this file.
*
* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#import "OFObject.h"
#import "OFString.h"
#import "OFDNSResourceRecord.h"
OF_ASSUME_NONNULL_BEGIN
@class OFArray OF_GENERIC(ObjectType);
@class OFDictionary OF_GENERIC(KeyType, ObjectType);
@class OFMutableDictionary OF_GENERIC(KeyType, ObjectType);
@class OFNumber;
/*!
* @class OFDNSResolver OFDNSResolver.h ObjFW/OFDNSResolver.h
*
* @brief A class for resolving DNS names.
*/
@interface OFDNSResolver: OFObject
{
OFDictionary OF_GENERIC(OFString *, OFArray OF_GENERIC(OFString *) *)
*_staticHosts;
OFArray OF_GENERIC(OFString *) *_nameServers;
OFString *_Nullable _localDomain;
OFArray OF_GENERIC(OFString *) *_searchDomains;
size_t _minNumberOfDotsInAbsoluteName;
bool _usesTCP;
OFMutableDictionary OF_GENERIC(OFNumber *, id) *_queries;
}
/*!
* @brief A dictionary of static hosts.
*
* This dictionary is checked before actually looking up a host.
*/
@property (copy, nonatomic) OFDictionary OF_GENERIC(OFString *,
OFArray OF_GENERIC(OFString *) *) *staticHosts;
/*!
* @brief An array of name servers to use.
*
* The name servers are tried in order.
*/
@property (copy, nonatomic) OFArray OF_GENERIC(OFString *) *nameServers;
/*!
* @brief The local domain.
*/
@property OF_NULLABLE_PROPERTY (readonly, nonatomic) OFString *localDomain;
/*!
* @brief The domains to search for queries for short names.
*/
@property (copy, nonatomic) OFArray OF_GENERIC(OFString *) *searchDomains;
/*!
* @brief The minimum number of dots for a name to be considered absolute.
*/
@property (nonatomic) size_t minNumberOfDotsInAbsoluteName;
/*!
* @brief Whether the resolver uses TCP to talk to a name server.
*/
@property (nonatomic) bool usesTCP;
/*!
* @brief Creates a new, autoreleased OFDNSResolver.
*/
+ (instancetype)resolver;
/*!
* @brief Initializes an already allocated OFDNSResolver.
*/
- (instancetype)init;
/*!
* @brief Asynchronously resolves the specified host.
*
* @param host The host to resolve
* @param target The target to call with the result once resolving is done
* @param selector The selector to call on the target. The signature must be
* `void (OFArray<OFDNSResourceRecord *> *response, id context,
* id exception)`.
* @param context A context object to pass along to the target
*/
- (void)asyncResolveHost: (OFString *)host
target: (id)target
selector: (SEL)selector
context: (nullable id)context;
@end
OF_ASSUME_NONNULL_END