ObjFW  Check-in [c45a108585]

 * @brief A class which provides methods to create and use UDP sockets.
 *
 * Addresses are of type @ref OFSocketAddress. You can use the current thread's
 * @ref OFDNSResolver to create an address for a host / port pair,
 * @ref OFSocketAddressString to get the IP address string for an address and
 * @ref OFSocketAddressPort to get the port for an address. If you want to
 * compare two addresses, you can use
 * @ref OFEqualSocketAddress and you can use @ref OFSocketAddressHash to get a
 * hash to use in e.g. @ref OFMapTable.
 *
 * @warning Even though the OFCopying protocol is implemented, it does *not*
 *	    return an independent copy of the socket, but instead retains it.
 *	    This is so that the socket can be used as a key for a dictionary,
 *	    so context can be associated with a socket. Using a socket in more
 *	    than one thread at the same time is not thread-safe, even if copy

	OF_HASH_FINALIZE(hash);

	return hash;
}

static OFString *
IPv4AddressString(const OFSocketAddress *address)
{
	const struct sockaddr_in *addrIn = &address->sockaddr.in;
	uint32_t addr = OF_BSWAP32_IF_LE(addrIn->sin_addr.s_addr);
	OFString *string;

	string = [OFString stringWithFormat: @"%u.%u.%u.%u",
	    (addr & 0xFF000000) >> 24, (addr & 0x00FF0000) >> 16,
	    (addr & 0x0000FF00) >>  8, addr & 0x000000FF];

	return string;
}

static OFString *
IPv6AddressString(const OFSocketAddress *address)
{
	OFMutableString *string = [OFMutableString string];
	const struct sockaddr_in6 *addrIn6 = &address->sockaddr.in6;
	int_fast8_t zerosStart = -1, maxZerosStart = -1;
	uint_fast8_t zerosCount = 0, maxZerosCount = 0;
	bool first = true;

}

OFString *
OFSocketAddressString(const OFSocketAddress *address)
{
	switch (address->family) {
	case OFSocketAddressFamilyIPv4:
		return IPv4AddressString(address);
	case OFSocketAddressFamilyIPv6:
		return IPv6AddressString(address);
	default:
		@throw [OFInvalidArgumentException exception];
	}
}

void
OFSocketAddressSetPort(OFSocketAddress *address, uint16_t port)

	TEST(@"-[sendBuffer:length:receiver:]",
	    R([sock sendBuffer: "Hello" length: 5 receiver: &address1]))

	TEST(@"-[receiveIntoBuffer:length:sender:]",
	    [sock receiveIntoBuffer: buffer length: 5 sender: &address2] == 5 &&
	    memcmp(buffer, "Hello", 5) == 0 &&
	    OFSocketAddressEqual(&address1, &address2) &&
	    OFSocketaddressHash(&address1) == OFSocketaddressHash(&address2))

	objc_autoreleasePoolPop(pool);
}
@end