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#import "OFTimer.h"
#import "OFUDPSocket.h"
#ifdef OF_WINDOWS
# import "OFWindowsRegistryKey.h"
#endif
#import "OFInvalidArgumentException.h"
#import "OFInvalidServerReplyException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFResolveHostFailedException.h"
#import "OFTruncatedDataException.h"
#ifdef OF_WINDOWS
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#import "OFTimer.h"
#import "OFUDPSocket.h"
#ifdef OF_WINDOWS
# import "OFWindowsRegistryKey.h"
#endif
#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFInvalidServerReplyException.h"
#import "OFOpenItemFailedException.h"
#import "OFOutOfRangeException.h"
#import "OFResolveHostFailedException.h"
#import "OFTruncatedDataException.h"
#ifdef OF_WINDOWS
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OFString *_host, *_domainName;
of_dns_resource_record_class_t _recordClass;
of_dns_resource_record_type_t _recordType;
OFNumber *_ID;
OFArray OF_GENERIC(OFString *) *_nameServers, *_searchDomains;
size_t _nameServersIndex, _searchDomainsIndex;
of_time_interval_t _timeout;
unsigned int _maxRetries;
size_t _attempt;
id _target;
SEL _selector;
id _context;
OFData *_queryData;
OFTimer *_cancelTimer;
}
- (instancetype)initWithHost: (OFString *)host
domainName: (OFString *)domainName
recordClass: (of_dns_resource_record_class_t)recordClass
recordType: (of_dns_resource_record_type_t)recordType
ID: (OFNumber *)ID
nameServers: (OFArray OF_GENERIC(OFString *) *)nameServers
searchDomains: (OFArray OF_GENERIC(OFString *) *)searchDomains
timeout: (of_time_interval_t)timeout
maxRetries: (unsigned int)maxRetries
target: (id)target
selector: (SEL)selector
context: (id)context;
@end
@interface OFDNSResolver ()
- (void)of_setDefaults;
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OFString *_host, *_domainName;
of_dns_resource_record_class_t _recordClass;
of_dns_resource_record_type_t _recordType;
OFNumber *_ID;
OFArray OF_GENERIC(OFString *) *_nameServers, *_searchDomains;
size_t _nameServersIndex, _searchDomainsIndex;
of_time_interval_t _timeout;
unsigned int _maxAttempts;
size_t _attempt;
id _target;
SEL _selector;
id _context;
OFData *_queryData;
OFTimer *_cancelTimer;
}
- (instancetype)initWithHost: (OFString *)host
domainName: (OFString *)domainName
recordClass: (of_dns_resource_record_class_t)recordClass
recordType: (of_dns_resource_record_type_t)recordType
ID: (OFNumber *)ID
nameServers: (OFArray OF_GENERIC(OFString *) *)nameServers
searchDomains: (OFArray OF_GENERIC(OFString *) *)searchDomains
timeout: (of_time_interval_t)timeout
maxAttempts: (unsigned int)maxAttempts
target: (id)target
selector: (SEL)selector
context: (id)context;
@end
@interface OFDNSResolver ()
- (void)of_setDefaults;
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domainName: (OFString *)domainName
recordClass: (of_dns_resource_record_class_t)recordClass
recordType: (of_dns_resource_record_type_t)recordType
ID: (OFNumber *)ID
nameServers: (OFArray OF_GENERIC(OFString *) *)nameServers
searchDomains: (OFArray OF_GENERIC(OFString *) *)searchDomains
timeout: (of_time_interval_t)timeout
maxRetries: (unsigned int)maxRetries
target: (id)target
selector: (SEL)selector
context: (id)context
{
self = [super init];
@try {
void *pool = objc_autoreleasePoolPush();
OFMutableData *queryData;
uint16_t tmp;
_host = [host copy];
_domainName = [domainName copy];
_recordClass = recordClass;
_recordType = recordType;
_ID = [ID retain];
_nameServers = [nameServers copy];
_searchDomains = [searchDomains copy];
_timeout = timeout;
_maxRetries = maxRetries;
_target = [target retain];
_selector = selector;
_context = [context retain];
queryData = [OFMutableData dataWithCapacity: 512];
/* Header */
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domainName: (OFString *)domainName
recordClass: (of_dns_resource_record_class_t)recordClass
recordType: (of_dns_resource_record_type_t)recordType
ID: (OFNumber *)ID
nameServers: (OFArray OF_GENERIC(OFString *) *)nameServers
searchDomains: (OFArray OF_GENERIC(OFString *) *)searchDomains
timeout: (of_time_interval_t)timeout
maxAttempts: (unsigned int)maxAttempts
target: (id)target
selector: (SEL)selector
context: (id)context
{
self = [super init];
@try {
void *pool = objc_autoreleasePoolPush();
OFMutableData *queryData;
uint16_t tmp;
_host = [host copy];
_domainName = [domainName copy];
_recordClass = recordClass;
_recordType = recordType;
_ID = [ID retain];
_nameServers = [nameServers copy];
_searchDomains = [searchDomains copy];
_timeout = timeout;
_maxAttempts = maxAttempts;
_target = [target retain];
_selector = selector;
_context = [context retain];
queryData = [OFMutableData dataWithCapacity: 512];
/* Header */
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[super dealloc];
}
@end
@implementation OFDNSResolver
@synthesize staticHosts = _staticHosts, nameServers = _nameServers;
@synthesize localDomain = _localDomain, searchDomains = _searchDomains;
@synthesize timeout = _timeout, maxRetries = _maxRetries;
@synthesize minNumberOfDotsInAbsoluteName = _minNumberOfDotsInAbsoluteName;
@synthesize usesTCP = _usesTCP, configReloadInterval = _configReloadInterval;
+ (instancetype)resolver
{
return [[[self alloc] init] autorelease];
}
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[super dealloc];
}
@end
@implementation OFDNSResolver
@synthesize staticHosts = _staticHosts, nameServers = _nameServers;
@synthesize localDomain = _localDomain, searchDomains = _searchDomains;
@synthesize timeout = _timeout, maxAttempts = _maxAttempts;
@synthesize minNumberOfDotsInAbsoluteName = _minNumberOfDotsInAbsoluteName;
@synthesize usesTCP = _usesTCP, configReloadInterval = _configReloadInterval;
+ (instancetype)resolver
{
return [[[self alloc] init] autorelease];
}
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return self;
}
- (void)of_setDefaults
{
_timeout = 2;
_maxRetries = 3;
_minNumberOfDotsInAbsoluteName = 1;
_usesTCP = false;
_configReloadInterval = 2;
}
- (void)of_parseConfig
{
void *pool = objc_autoreleasePoolPush();
#ifdef OF_WINDOWS
OFString *path;
#endif
#if defined(OF_WINDOWS)
# ifdef OF_HAVE_FILES
path = [[OFWindowsRegistryKey localMachineKey]
stringForValue: @"DataBasePath"
subKeyPath: @"SYSTEM\\CurrentControlSet\\Services\\"
@"Tcpip\\Parameters"];
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return self;
}
- (void)of_setDefaults
{
_timeout = 2;
_maxAttempts = 3;
_minNumberOfDotsInAbsoluteName = 1;
_usesTCP = false;
_configReloadInterval = 2;
}
- (void)of_parseConfig
{
void *pool = objc_autoreleasePoolPush();
#ifdef OF_WINDOWS
OFString *path;
#endif
[self of_setDefaults];
#if defined(OF_WINDOWS)
# ifdef OF_HAVE_FILES
path = [[OFWindowsRegistryKey localMachineKey]
stringForValue: @"DataBasePath"
subKeyPath: @"SYSTEM\\CurrentControlSet\\Services\\"
@"Tcpip\\Parameters"];
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_nameServers = [nameServers copy];
objc_autoreleasePoolPop(pool);
}
- (void)of_parseResolvConfOption: (OFString *)option
{
if ([option hasPrefix: @"ndots:"]) {
option = [option substringWithRange:
of_range(6, [option length] - 6)];
@try {
_minNumberOfDotsInAbsoluteName =
(size_t)[option decimalValue];
} @catch (id e) {
return;
}
} else if ([option isEqual: @"tcp"])
_usesTCP = true;
}
# endif
#endif
#ifdef OF_WINDOWS
- (void)of_parseNetworkParams
{
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_nameServers = [nameServers copy];
objc_autoreleasePoolPop(pool);
}
- (void)of_parseResolvConfOption: (OFString *)option
{
@try {
if ([option hasPrefix: @"ndots:"]) {
option = [option substringWithRange:
of_range(6, [option length] - 6)];
_minNumberOfDotsInAbsoluteName =
(size_t)[option decimalValue];
} else if ([option hasPrefix: @"timeout:"]) {
option = [option substringWithRange:
of_range(8, [option length] - 8)];
_timeout = [option decimalValue];
} else if ([option hasPrefix: @"attempts:"]) {
option = [option substringWithRange:
of_range(9, [option length] - 9)];
_maxAttempts = (unsigned int)[option decimalValue];
} else if ([option hasPrefix: @"reload-period:"]) {
option = [option substringWithRange:
of_range(14, [option length] - 14)];
_configReloadInterval = [option decimalValue];
} else if ([option isEqual: @"tcp"])
_usesTCP = true;
} @catch (OFInvalidFormatException *e) {
}
}
# endif
#endif
#ifdef OF_WINDOWS
- (void)of_parseNetworkParams
{
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domainName: domainName
recordClass: recordClass
recordType: recordType
ID: ID
nameServers: _nameServers
searchDomains: _searchDomains
timeout: _timeout
maxRetries: _maxRetries
target: target
selector: selector
context: context] autorelease];
[_queries setObject: query
forKey: ID];
[self of_sendQuery: query];
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domainName: domainName
recordClass: recordClass
recordType: recordType
ID: ID
nameServers: _nameServers
searchDomains: _searchDomains
timeout: _timeout
maxAttempts: _maxAttempts
target: target
selector: selector
context: context] autorelease];
[_queries setObject: query
forKey: ID];
[self of_sendQuery: query];
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if (query->_nameServersIndex + 1 < [query->_nameServers count]) {
query->_nameServersIndex++;
[self of_sendQuery: query];
return;
}
if (query->_attempt < query->_maxRetries) {
query->_attempt++;
query->_nameServersIndex = 0;
[self of_sendQuery: query];
return;
}
query = [[query retain] autorelease];
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if (query->_nameServersIndex + 1 < [query->_nameServers count]) {
query->_nameServersIndex++;
[self of_sendQuery: query];
return;
}
if (query->_attempt < query->_maxAttempts) {
query->_attempt++;
query->_nameServersIndex = 0;
[self of_sendQuery: query];
return;
}
query = [[query retain] autorelease];
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