/*
* 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.
*/
#include "config.h"
#import "OFApplication.h"
#import "OFArray.h"
#import "OFDNSResolver.h"
#import "OFStdIOStream.h"
@interface OFDNS: OFObject <OFApplicationDelegate>
@end
OF_APPLICATION_DELEGATE(OFDNS)
@implementation OFDNS
- (void)handleDNSResponse: (OFArray OF_GENERIC(OFDNSResourceRecord *) *)response
context: (id)context
exception: (id)exception
{
if (exception != nil) {
[of_stderr writeFormat: @"Failed to resolve: %@\n", exception];
[OFApplication terminateWithStatus: 1];
}
[of_stdout writeLine: [response description]];
[OFApplication terminate];
}
- (void)applicationDidFinishLaunching
{
OFArray OF_GENERIC(OFString *) *arguments = [OFApplication arguments];
of_dns_resource_record_class_t recordClass =
OF_DNS_RESOURCE_RECORD_CLASS_ANY;
of_dns_resource_record_type_t recordType =
OF_DNS_RESOURCE_RECORD_TYPE_ALL;
OFDNSResolver *resolver;
if ([arguments count] < 1 || [arguments count] > 4) {
[of_stderr writeFormat:
@"Usage: %@ host [type [class [server]]]\n",
[OFApplication programName]];
[OFApplication terminateWithStatus: 1];
}
resolver = [OFDNSResolver resolver];
if ([arguments count] >= 2)
recordType = of_dns_resource_record_type_parse(
[arguments objectAtIndex: 1]);
if ([arguments count] >= 3)
recordClass = of_dns_resource_record_class_parse(
[arguments objectAtIndex: 2]);
if ([arguments count] >= 4)
[resolver setNameServers:
[OFArray arrayWithObject: [arguments objectAtIndex: 3]]];
[resolver asyncResolveHost: [arguments objectAtIndex: 0]
recordClass: recordClass
recordType: recordType
target: self
selector: @selector(handleDNSResponse:context:
exception:)
context: nil];
}
@end