ObjFW  Diff

- (instancetype)initWithSubidentifiers:
    (OFArray OF_GENERIC(OFNumber *) *)subidentifiers
{
	self = [super init];

	@try {
		if ([subidentifiers count] < 1)
		if (subidentifiers.count < 1)
			@throw [OFInvalidFormatException exception];

		switch ([[subidentifiers objectAtIndex: 0] intMaxValue]) {
		case 0:
		case 1:
		case 2:
			break;

		     constructed: (bool)constructed
	      DEREncodedContents: (OFData *)DEREncodedContents
{
	void *pool = objc_autoreleasePoolPush();
	OFMutableArray OF_GENERIC(OFNumber *) *subidentifiers;

	@try {
		const unsigned char *items = [DEREncodedContents items];
		size_t count = [DEREncodedContents count];
		const unsigned char *items = DEREncodedContents.items;
		size_t count = DEREncodedContents.count;
		uintmax_t value = 0;
		uint_fast8_t bits = 0;

		if (tagClass != OF_ASN1_TAG_CLASS_UNIVERSAL ||
		    tagNumber != OF_ASN1_TAG_NUMBER_OBJECT_IDENTIFIER ||
		    constructed)
			@throw [OFInvalidArgumentException exception];

		if ([DEREncodedContents itemSize] != 1 || count == 0)
		if (DEREncodedContents.itemSize != 1 || count == 0)
			@throw [OFInvalidArgumentException exception];

		subidentifiers = [OFMutableArray array];

		for (size_t i = 0; i < count; i++) {
			if (bits == 0 && items[i] == 0x80)
				@throw [OFInvalidFormatException exception];

			value = (value << 7) | (items[i] & 0x7F);
			bits += 7;

			if (bits > sizeof(uintmax_t) * 8)
				@throw [OFOutOfRangeException exception];

			if (items[i] & 0x80)
				continue;

			if ([subidentifiers count] == 0) {
			if (subidentifiers.count == 0) {
				if (value < 40)
					[subidentifiers addObject:
					    [OFNumber numberWithUIntMax: 0]];
				else if (value < 80) {
					[subidentifiers addObject:
					    [OFNumber numberWithUIntMax: 1]];
					value -= 40;

		return false;

	return true;
}

- (uint32_t)hash
{
	return [_subidentifiers hash];
	return _subidentifiers.hash;
}

- (OFString *)description
{
	return [OFString stringWithFormat:
	    @"<OFASN1ObjectIdentifier: %@>",
	    [_subidentifiers componentsJoinedByString: @"."]];
}
@end