ObjFW  Check-in [14f05841a3]

{
	void *pool = objc_autoreleasePoolPush();
	OFNumber *ID;
	OFDNSResolverContext *context;

	/* Random, unused ID */
	do {
		ID = [OFNumber numberWithUInt16: (uint16_t)of_random()];
		ID = [OFNumber numberWithUInt16: of_random16()];
	} while ([_queries objectForKey: ID] != nil);

	if (query.domainName.UTF8StringLength > 253)
		@throw [OFOutOfRangeException exception];

	if (_settings->_nameServers.count == 0) {
		id exception = [OFDNSQueryFailedException

		if (_capacity < MIN_CAPACITY)
			_capacity = MIN_CAPACITY;

		_buckets = [self allocZeroedMemoryWithSize: sizeof(*_buckets)
						     count: _capacity];

		if (of_hash_seed != 0)
			_rotate = of_random() & 31;
			_rotate = of_random16() & 31;
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

				count: _capacity];

	/*
	 * Get a new random value for _rotate, so that it is not less secure
	 * than creating a new hash map.
	 */
	if (of_hash_seed != 0)
		_rotate = of_random() & 31;
		_rotate = of_random16() & 31;
}

- (bool)containsObject: (void *)object
{
	if (object == NULL || _count == 0)
		return false;

extern void *_Null_unspecified objc_autoreleasePoolPush(void);
extern void objc_autoreleasePoolPop(void *_Null_unspecified pool);
#endif
extern id of_alloc_object(Class class_, size_t extraSize,
    size_t extraAlignment, void *_Nullable *_Nullable extra);
extern void OF_NO_RETURN_FUNC of_method_not_found(id self, SEL _cmd);
extern uint32_t of_hash_seed;
/* This does *NOT* provide cryptographically secure randomness! */
extern uint32_t of_random(void);
/* These do *NOT* provide cryptographically secure randomness! */
extern uint16_t of_random16(void);
extern uint32_t of_random32(void);
extern uint64_t of_random64(void);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#ifdef __OBJC__
# import "OFObject+KeyValueCoding.h"
# import "OFObject+Serialization.h"
#endif

#endif

	srandom((unsigned)(tv.tv_sec ^ tv.tv_usec));
# else
	gettimeofday(&tv, NULL);
	srand((unsigned)(tv.tv_sec ^ tv.tv_usec));
# endif
}
#endif

uint16_t
of_random16(void)
{
#if defined(HAVE_ARC4RANDOM)
	return arc4random();
#elif defined(HAVE_GETRANDOM)
	uint16_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	static of_once_t onceControl = OF_ONCE_INIT;

	of_once(&onceControl, initRandom);
# ifdef HAVE_RANDOM
	return random() & 0xFFFF;
# else
	return rand() & 0xFFFF;
# endif
#endif
}

uint32_t
of_random(void)
of_random32(void)
{
#if defined(HAVE_ARC4RANDOM)
	return arc4random();
#elif defined(HAVE_GETRANDOM)
	uint32_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	return ((uint32_t)of_random16() << 16) | of_random16();
#endif
}
	static of_once_t onceControl;

	of_once(&onceControl, initRandom);
# ifdef HAVE_RANDOM
	return (((uint32_t)(random()) << 16) | ((uint32_t)(random()) & 0xFFFF));
# else
	return (((uint32_t)(rand()) << 16) | ((uint32_t)(rand()) & 0xFFFF));

uint64_t
of_random64(void)
{
#if defined(HAVE_ARC4RANDOM)
	uint64_t buffer;

	arc4random_buf(&buffer, sizeof(buffer));

	return buffer;
#elif defined(HAVE_GETRANDOM)
	uint64_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	return ((uint64_t)of_random32() << 32) | of_random32();
# endif
#endif
}

static const char *
typeEncodingForSelector(Class class, SEL selector)
{
	Method method;

#else
	objc_setForwardHandler((IMP)&of_forward, (IMP)&of_forward_stret);
#endif

	objc_setEnumerationMutationHandler(enumerationMutationHandler);

	do {
		of_hash_seed = of_random();
		of_hash_seed = of_random32();
	} while (of_hash_seed == 0);
}

+ (void)unload
{
}