ObjFW  Check-in [523aea1c7b]

LIB_MAJOR = ${OBJFW_LIB_MAJOR}
LIB_MINOR = ${OBJFW_LIB_MINOR}
LIB_PATCH = ${OBJFW_LIB_PATCH}

SRCS = OFASN1BitString.m		\
       OFASN1Enumerated.m		\
       OFASN1IA5String.m		\
       OFASN1Integer.m			\
       OFASN1NumericString.m		\
       OFASN1ObjectIdentifier.m		\
       OFASN1OctetString.m		\
       OFASN1PrintableString.m		\
       OFASN1UTF8String.m		\
       OFASN1Value.m			\
       OFApplication.m			\

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * 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 "OFASN1Value.h"

OF_ASSUME_NONNULL_BEGIN

/**
 * @brief An ASN.1 Integer.
 */
OF_SUBCLASSING_RESTRICTED
@interface OFASN1Integer: OFObject
{
	long long _longLongValue;
}

/**
 * @brief The Integer value.
 */
@property (readonly, nonatomic) long long longLongValue;

/**
 * @brief Creates an ASN.1 Integer with the specified integer value.
 *
 * @param value The `long long` value of the Integer
 * @return A new, autoreleased OFASN1Integer
 */
+ (instancetype)integerWithLongLong: (long long)value;

- (instancetype)init OF_UNAVAILABLE;

/**
 * @brief Initializes an already allocated ASN.1 Integer with the specified
 *	  integer value.
 *
 * @param value The `long long` value of the Integer
 * @return An initialized OFASN1Integer
 */
- (instancetype)initWithLongLong: (long long)value OF_DESIGNATED_INITIALIZER;

/**
 * @brief Initializes an already allocated ASN.1 Integer with the specified
 *	  arguments.
 *
 * @param tagClass The tag class of the value's type
 * @param tagNumber The tag number of the value's type
 * @param constructed Whether the value if of a constructed type
 * @param DEREncodedContents The DER-encoded contents octets of the value.
 * @return An initialized OFASN1Integer
 */
- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents;
@end

OF_ASSUME_NONNULL_END

/*
 * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
 *
 * 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 "OFASN1Integer.h"
#import "OFData.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfRangeException.h"

long long
OFASN1DERIntegerParse(const unsigned char *buffer, size_t length)
{
	unsigned long long value = 0;

	/* TODO: Support for big numbers */
	if (length > sizeof(unsigned long long) &&
	    (length != sizeof(unsigned long long) + 1 || buffer[0] != 0))
		@throw [OFOutOfRangeException exception];

	if (length >= 2 && ((buffer[0] == 0 && !(buffer[1] & 0x80)) ||
	    (buffer[0] == 0xFF && buffer[1] & 0x80)))
		@throw [OFInvalidFormatException exception];

	if (length >= 1 && buffer[0] & 0x80)
		value = ~0ull;

	while (length--)
		value = (value << 8) | *buffer++;

	return value;
}

@implementation OFASN1Integer
@synthesize longLongValue = _longLongValue;

+ (instancetype)integerWithLongLong: (long long)value
{
	return [[[self alloc] initWithLongLong: value] autorelease];
}

- (instancetype)initWithLongLong: (long long)value
{
	self = [super init];

	_longLongValue = value;

	return self;
}

- (instancetype)initWithTagClass: (OFASN1TagClass)tagClass
		       tagNumber: (OFASN1TagNumber)tagNumber
		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	long long value;

	@try {
		if (tagClass != OFASN1TagClassUniversal ||
		    tagNumber != OFASN1TagNumberInteger || constructed)
			@throw [OFInvalidArgumentException exception];

		if (DEREncodedContents.itemSize != 1)
			@throw [OFInvalidArgumentException exception];

		value = OFASN1DERIntegerParse(
		    DEREncodedContents.items, DEREncodedContents.count);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return [self initWithLongLong: value];
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

- (bool)isEqual: (id)object
{
	OFASN1Integer *integer;

	if (object == self)
		return true;

	if (![object isKindOfClass: [OFASN1Integer class]])
		return false;

	integer = object;

	if (integer->_longLongValue != _longLongValue)
		return false;

	return true;
}

- (unsigned long)hash
{
	return (unsigned long)_longLongValue;
}

- (OFString *)description
{
	return [OFString stringWithFormat: @"<OFASN1Integer: %lld>",
					   _longLongValue];
}
@end

#include "config.h"

#import "OFData+ASN1DERParsing.h"
#import "OFASN1BitString.h"
#import "OFASN1Enumerated.h"
#import "OFASN1IA5String.h"
#import "OFASN1Integer.h"
#import "OFASN1NumericString.h"
#import "OFASN1ObjectIdentifier.h"
#import "OFASN1OctetString.h"
#import "OFASN1PrintableString.h"
#import "OFASN1UTF8String.h"
#import "OFASN1Value.h"
#import "OFArray.h"

enum {
	tagConstructedMask = 0x20
};

int _OFData_ASN1DERParsing_reference;

static size_t parseObject(OFData *self, id *object, size_t depthLimit);
























static OFArray *
parseSequence(OFData *contents, size_t depthLimit)
{
	OFMutableArray *ret = [OFMutableArray array];
	size_t count = contents.count;

		if (boolValue != 0 && boolValue != 0xFF)
			@throw [OFInvalidFormatException exception];

		*object = [OFNumber numberWithBool: boolValue];
		return bytesConsumed;
	case OFASN1TagNumberInteger:


		valueClass = [OFASN1Integer class];


		break;
	case OFASN1TagNumberBitString:
		valueClass = [OFASN1BitString class];
		break;
	case OFASN1TagNumberOctetString:
		valueClass = [OFASN1OctetString class];
		break;
	case OFASN1TagNumberNull:

#ifdef OF_WINDOWS
# import "OFWindowsRegistryKey.h"
#endif

#import "OFASN1BitString.h"
#import "OFASN1Enumerated.h"
#import "OFASN1IA5String.h"
#import "OFASN1Integer.h"
#import "OFASN1NumericString.h"
#import "OFASN1ObjectIdentifier.h"
#import "OFASN1OctetString.h"
#import "OFASN1PrintableString.h"
#import "OFASN1UTF8String.h"
#import "OFASN1Value.h"