ObjFW  Check-in [36c65b8468]

		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#endif

	if (sender != NULL) {
		struct sockaddr *sa = (struct sockaddr *)&sender->sockaddr;

		if (sender->length >= sizeof(sa->sa_family)) {
			switch (sa->sa_family) {
			case AF_INET:
				sender->family = OFSocketAddressFamilyIPv4;
				break;
#ifdef OF_HAVE_IPV6
			case AF_INET6:
				sender->family = OFSocketAddressFamilyIPv6;
				break;
#endif
#ifdef OF_HAVE_UNIX_SOCKETS
			case AF_UNIX:
				sender->family = OFSocketAddressFamilyUNIX;
				break;
#endif
#ifdef OF_HAVE_IPX
			case AF_IPX:
				sender->family = OFSocketAddressFamilyIPX;
				break;
#endif
#ifdef OF_HAVE_APPLETALK
			case AF_APPLETALK:
				sender->family = OFSocketAddressFamilyAppleTalk;
				break;
#endif
			default:
				sender->family = OFSocketAddressFamilyUnknown;
				break;
			}
		} else
			sender->family = OFSocketAddressFamilyUnknown;
	}

	return ret;
}

- (void)asyncReceiveIntoBuffer: (void *)buffer length: (size_t)length
{

/**
 * @brief Gets the UNIX socket path of the specified @ref OFSocketAddress.
 *
 * @param address The address on which to get the UNIX socket path
 * @return The UNIX socket path
 */
extern OFString *OFSocketAddressUNIXPath(
    const OFSocketAddress *_Nonnull address);

/**
 * @brief Sets the IPX network of the specified @ref OFSocketAddress.
 *
 * @param address The address on which to set the IPX network
 * @param network The IPX network to set on the address

OFSocketAddressString(const OFSocketAddress *address)
{
	switch (address->family) {
	case OFSocketAddressFamilyIPv4:
		return IPv4String(address);
	case OFSocketAddressFamilyIPv6:
		return IPv6String(address);
	case OFSocketAddressFamilyUNIX:
		return OFSocketAddressUNIXPath(address);
	case OFSocketAddressFamilyIPX:
		return IPXString(address);
	case OFSocketAddressFamilyAppleTalk:
		return appleTalkString(address);
	default:
		@throw [OFInvalidArgumentException exception];
	}

	length = address->length - 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]
				    length: length];
}

void
OFSocketAddressSetIPXNetwork(OFSocketAddress *address, uint32_t network)

 */
@property OF_NULLABLE_PROPERTY (assign, nonatomic)
    id <OFUNIXDatagramSocketDelegate> delegate;

/**
 * @brief Bind the socket to the specified path.
 *
 * @param path The path to bind to or `nil` for an anonymous socket
 * @return The address on which this socket can be reached, if a path was
 *	   specified
 * @throw OFBindUNIXSocketFailedException Binding failed
 * @throw OFAlreadyOpenException The socket is already bound
 */
- (OFSocketAddress)bindToPath: (nullable OFString *)path;
@end

OF_ASSUME_NONNULL_END

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	int flags;
#endif

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyOpenException exceptionWithObject: self];

	if (path != nil)
		address = OFSocketAddressMakeUNIX(path);
	else {
		address.family = OFSocketAddressFamilyUnknown;
		address.length = 0;
	}

	if ((_socket = socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0)) ==
	    OFInvalidSocketHandle)
		@throw [OFBindUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (path != nil) {
		if (bind(_socket, (struct sockaddr *)&address.sockaddr,
		    address.length) != 0) {
			int errNo = OFSocketErrNo();

			closesocket(_socket);
			_socket = OFInvalidSocketHandle;

			@throw [OFBindUNIXSocketFailedException
			    exceptionWithPath: path
				       socket: self
					errNo: errNo];
		}
	}

	return address;
}
@end

		TEST(@"-[writeBuffer:length:]",
		    R([sockAccepted writeBuffer: "Hello" length: 5]))

		TEST(@"-[readIntoBuffer:length:]",
		    [sockClient readIntoBuffer: buffer length: 5] == 5 &&
		    memcmp(buffer, "Hello", 5) == 0)

		TEST(@"-[remoteAddress]", OFSocketAddressUNIXPath(
		    sockAccepted.remoteAddress).length == 0)
	} @finally {
#ifdef OF_HAVE_FILES
		[[OFFileManager defaultManager] removeItemAtPath: path];
#endif
	}

	objc_autoreleasePoolPop(pool);