ObjFW  Check-in [7b0cd744dc]

	OBJCFLAGS="$OBJCFLAGS -lobjc"

	AC_CHECK_FUNC(objc_autoreleasePoolPush, [], [
		AC_SUBST(RUNTIME_AUTORELEASE_M, "runtime/autorelease.m")
	])
	AC_CHECK_FUNC(objc_constructInstance, [], [
		AC_SUBST(RUNTIME_INSTANCE_M, "runtime/instance.m")
		AC_DEFINE(OF_DECLARE_CONSTRUCT_INSTANCE, 1,
			[Whether to declare objc_constructInstance])
	])
	AC_CHECK_FUNCS(objc_setAssociatedObject, [], [
		AC_SUBST(RUNTIME_ASSOCIATION_M, "runtime/association.m")
		AC_DEFINE(OF_DECLARE_SET_ASSOCIATED_OBJECT, 1,
			[Whether to declare objc_setAssociatedObject])
	])

	OBJCFLAGS="$old_OBJCFLAGS"
	;;
esac

case "$host_os" in

			    protocolType: protocolType
				  socket: self
				   errNo: EAFNOSUPPORT];
	}

#ifdef OF_MACOS
	if (setsockopt(_socket, ATPROTO_NONE, DDP_STRIPHDR, &one,
	    (socklen_t)sizeof(one)) != 0 || ioctl(_socket, _IOWR('a', 2,
	    struct ATInterfaceConfig), &config) != 0)
		@throw [OFBindDDPSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			    protocolType: protocolType
				  socket: self

		OFSocketAddress address;

		if (dataLength != 4)
			@throw [OFInvalidServerResponseException exception];

		memset(&address, 0, sizeof(address));
		address.family = OFSocketAddressFamilyIPv4;
		address.length = (socklen_t)sizeof(address.sockaddr.in);

		address.sockaddr.in.sin_family = AF_INET;
		memcpy(&address.sockaddr.in.sin_addr.s_addr, buffer + i, 4);

		return [[[OFADNSResourceRecord alloc]
		    initWithName: name
			 address: &address

		OFSocketAddress address;

		if (dataLength != 16)
			@throw [OFInvalidServerResponseException exception];

		memset(&address, 0, sizeof(address));
		address.family = OFSocketAddressFamilyIPv6;
		address.length = (socklen_t)sizeof(address.sockaddr.in6);

#ifdef AF_INET6
		address.sockaddr.in6.sin6_family = AF_INET6;
#else
		address.sockaddr.in6.sin6_family = AF_UNSPEC;
#endif
		memcpy(address.sockaddr.in6.sin6_addr.s6_addr, buffer + i, 16);

#endif
}

- (bool)canSendToBroadcastAddresses
{
#ifndef OF_WII
	int v;
	socklen_t len = (socklen_t)sizeof(v);

	if (getsockopt(_socket, SOL_SOCKET, SO_BROADCAST,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: _OFSocketErrNo()];

			if (!_inflateStream.atEndOfStream) {
				size_t bytesRead = [_inflateStream
				    readIntoBuffer: buffer
					    length: length];

				_CRC32 = _OFCRC32(_CRC32, buffer, bytesRead);
				_uncompressedSize += (uint32_t)bytesRead;

				return bytesRead;
			}

			[_inflateStream release];
			_inflateStream = nil;

			if (_headerLevel == 1)
				readExtensions(self, stream, encoding, false);

			objc_autoreleasePoolPop(pool);
			break;
		case 2:
		case 3:;
			size_t padding = 0;

			_modificationDate = [[OFDate alloc]
			    initWithTimeIntervalSince1970: date];

			_CRC16 = [stream readLittleEndianInt16];
			_operatingSystemIdentifier = [stream readInt8];

 *		  nothing)
 */
extern void OFFreeMemory(void *_Nullable pointer);

#ifdef OF_APPLE_RUNTIME
extern void *_Null_unspecified objc_autoreleasePoolPush(void);
extern void objc_autoreleasePoolPop(void *_Null_unspecified pool);
# ifdef OF_DECLARE_CONSTRUCT_INSTANCE
extern id _Nullable objc_constructInstance(Class _Nullable class_,
    void *_Nullable bytes);
extern void *_Nullable objc_destructInstance(id _Nullable object);
# endif
# ifdef OF_DECLARE_SET_ASSOCIATED_OBJECT
typedef enum objc_associationPolicy {
	OBJC_ASSOCIATION_ASSIGN	= 0,
	OBJC_ASSOCIATION_RETAIN_NONATOMIC = 1,
	OBJC_ASSOCIATION_RETAIN = OBJC_ASSOCIATION_RETAIN_NONATOMIC | 0x300,
	OBJC_ASSOCIATION_COPY_NONATOMIC = 3,
	OBJC_ASSOCIATION_COPY = OBJC_ASSOCIATION_COPY_NONATOMIC | 0x300
} objc_associationPolicy;

	for (size_t i = 0; i < costFactor; i++) {
		memcpy(tmp2 + i * 32 * blockSize, tmp, 128 * blockSize);
		_OFScryptBlockMix(tmp, tmp2 + i * 32 * blockSize, blockSize);
	}

	for (size_t i = 0; i < costFactor; i++) {
		uint32_t j = (uint32_t)(OFFromLittleEndian32(
		    tmp[(2 * blockSize - 1) * 16]) & (costFactor - 1));

		for (size_t k = 0; k < 32 * blockSize; k++)
			tmp[k] ^= tmp2[j * 32 * blockSize + k];

		_OFScryptBlockMix(buffer, tmp, blockSize);

		if (i < costFactor - 1)

	[super dealloc];
}

#ifndef OF_WII
- (int)of_socketError
{
	int errNo;
	socklen_t len = (socklen_t)sizeof(errNo);

	if (getsockopt(_socket, SOL_SOCKET, SO_ERROR, (char *)&errNo,
	    &len) != 0)
		return _OFSocketErrNo();

	return errNo;
}

	uint32_t addr;

	memset(&ret, '\0', sizeof(ret));
	ret.family = OFSocketAddressFamilyIPv4;
#if defined(OF_WII) || defined(OF_NINTENDO_3DS)
	ret.length = 8;
#else
	ret.length = (socklen_t)sizeof(ret.sockaddr.in);
#endif

	addrIn->sin_family = AF_INET;
	addrIn->sin_port = OFToBigEndian16(port);
#ifdef OF_WII
	addrIn->sin_len = ret.length;
#endif

	void *pool = objc_autoreleasePoolPush();
	OFSocketAddress ret;
	struct sockaddr_in6 *addrIn6 = &ret.sockaddr.in6;
	size_t doubleColon, percent;

	memset(&ret, '\0', sizeof(ret));
	ret.family = OFSocketAddressFamilyIPv6;
	ret.length = (socklen_t)sizeof(ret.sockaddr.in6);

#ifdef AF_INET6
	addrIn6->sin6_family = AF_INET6;
#else
	addrIn6->sin6_family = AF_UNSPEC;
#endif
	addrIn6->sin6_port = OFToBigEndian16(port);

OFSocketAddressMakeIPX(uint32_t network, const unsigned char node[IPX_NODE_LEN],
    uint16_t port)
{
	OFSocketAddress ret;

	memset(&ret, '\0', sizeof(ret));
	ret.family = OFSocketAddressFamilyIPX;
	ret.length = (socklen_t)sizeof(ret.sockaddr.ipx);

#ifdef AF_IPX
	ret.sockaddr.ipx.sipx_family = AF_IPX;
#else
	ret.sockaddr.ipx.sipx_family = AF_UNSPEC;
#endif
	network = OFToBigEndian32(network);

OFSocketAddress
OFSocketAddressMakeAppleTalk(uint16_t network, uint8_t node, uint8_t port)
{
	OFSocketAddress ret;

	memset(&ret, '\0', sizeof(ret));
	ret.family = OFSocketAddressFamilyAppleTalk;
	ret.length = (socklen_t)sizeof(ret.sockaddr.at);

#ifdef AF_APPLETALK
	ret.sockaddr.at.sat_family = AF_APPLETALK;
#else
	ret.sockaddr.at.sat_family = AF_UNSPEC;
#endif
#ifdef OF_WINDOWS

OFSocketAddressUNIXPath(const OFSocketAddress *_Nonnull address)
{
	socklen_t length;

	if (address->family != OFSocketAddressFamilyUNIX)
		@throw [OFInvalidArgumentException exception];

	length =
	    address->length - (socklen_t)offsetof(struct sockaddr_un, sun_path);

	for (socklen_t i = 0; i < length; i++)
		if (address->sockaddr.un.sun_path[i] == 0)
			length = i;

	return [OFString stringWithCString: address->sockaddr.un.sun_path
				  encoding: [OFLocale encoding]

#endif
}

#ifndef OF_WII
- (int)of_socketError
{
	int errNo;
	socklen_t len = (socklen_t)sizeof(errNo);

	if (getsockopt(_socket, SOL_SOCKET, SO_ERROR, (char *)&errNo,
	    &len) != 0)
		return _OFSocketErrNo();

	return errNo;
}

		    exceptionWithObject: self
				  errNo: _OFSocketErrNo()];
}

- (bool)sendsKeepAlives
{
	int v;
	socklen_t len = (socklen_t)sizeof(v);

	if (getsockopt(_socket, SOL_SOCKET, SO_KEEPALIVE,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: _OFSocketErrNo()];

		    exceptionWithObject: self
				  errNo: _OFSocketErrNo()];
}

- (bool)canDelaySendingSegments
{
	int v;
	socklen_t len = (socklen_t)sizeof(v);

	if (getsockopt(_socket, IPPROTO_TCP, TCP_NODELAY,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: _OFSocketErrNo()];

#undef OF_APPLE_RUNTIME
#undef OF_BIG_ENDIAN
#undef OF_CLASSIC_MACOS
#undef OF_DECLARE_CONSTRUCT_INSTANCE
#undef OF_DECLARE_SET_ASSOCIATED_OBJECT
#undef OF_FLOAT_BIG_ENDIAN
#undef OF_HAVE_AFUNIX_H
#undef OF_HAVE_APPLETALK
#undef OF_HAVE_ATOMIC_BUILTINS
#undef OF_HAVE_ATOMIC_OPS
#undef OF_HAVE_BUILTIN_BSWAP16
#undef OF_HAVE_BUILTIN_BSWAP32

	}

	@try {
		char *buffer;

		memset(&ifc, 0, sizeof(ifc));
		ifc.ifc_buf = (void *)ifrs;
		ifc.ifc_len = 128 * (int)sizeof(struct ifreq);
		if (ioctl(sock, SIOCGIFCONF, &ifc) < 0)
			return false;

		buffer = ifc.ifc_buf;
		while (buffer < (char *)ifc.ifc_buf + ifc.ifc_len) {
			struct ifreq *current = (struct ifreq *)(void *)buffer;
			OFString *name;

	}

	@try {
		char *buffer;

		memset(&ifc, 0, sizeof(ifc));
		ifc.ifc_buf = (void *)ifrs;
		ifc.ifc_len = 128 * (int)sizeof(struct ifreq);
		if (ioctl(sock, SIOCGIFCONF, &ifc) < 0)
			return false;

		buffer = ifc.ifc_buf;
		while (buffer < (char *)ifc.ifc_buf + ifc.ifc_len) {
			struct ifreq *current = (struct ifreq *)(void *)buffer;
			struct sockaddr_dl *sdl;

#endif
}

id
objc_getAssociatedObject(id object, const void *key)
{
	size_t slot = slotForObject(object);
	id ret = nil;

#ifdef OF_HAVE_THREADS
	if (OFSpinlockLock(&spinlocks[slot]) != 0)
		OBJC_ERROR("Failed to lock spinlock!");

	@try {
#endif