ObjFW  Check-in [02ca89285f]

		])
	])
])

AS_IF([test x"$GOBJC" = x"yes"], [
	OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith -Werror"

	AC_MSG_CHECKING(whether we have gcc bug objc/27438)
	AC_TRY_COMPILE([
		@interface OFConstantString
		{
			struct objc_class *isa;
			const char *string;
			unsigned long size;
		}

 * copy it.
 *
 * @return The string as an array of Unicode characters
 */
- (const of_unichar_t*)characters OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns the string in UTF-16 encoding with native byte order.
 *
 * The result is valid until the autorelease pool is released. If you want to
 * use the result outside the scope of the current autorelease pool, you have to
 * copy it.
 *
 * @return The string in UTF-16 encoding with native byte order
 */
- (const uint16_t*)UTF16String OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns the string in UTF-16 encoding with the specified byte order.
 *
 * The result is valid until the autorelease pool is released. If you want to
 * use the result outside the scope of the current autorelease pool, you have to
 * copy it.
 *
 * @param byteOrder The byte order for the UTF-16 encoding
 * @return The string in UTF-16 encoding with the specified byte order
 */
- (const uint16_t*)UTF16StringWithByteOrder: (of_byte_order_t)byteOrder
    OF_RETURNS_INNER_POINTER;

/*!
 * @brief Returns the length of the string in UTF-16 characters.
 *
 * @return The length of string in UTF-16 characters
 */
- (size_t)UTF16StringLength;

/*!
 * @brief Writes the string into the specified file using UTF-8 encoding.
 *
 * @param path The path of the file to write to
 */
- (void)writeToFile: (OFString*)path;

}

- initWithUTF16String: (const uint16_t*)string
	       length: (size_t)length
{
	return [self initWithUTF16String: string
				  length: length
			       byteOrder: OF_BYTE_ORDER_NATIVE];
}

- initWithUTF16String: (const uint16_t*)string
	       length: (size_t)length
	    byteOrder: (of_byte_order_t)byteOrder
{
	@try {

		    inRange: of_range(0, length)];

	return ret;
}

- (const uint16_t*)UTF16String
{
	return [self UTF16StringWithByteOrder: OF_BYTE_ORDER_NATIVE];
}

- (const uint16_t*)UTF16StringWithByteOrder: (of_byte_order_t)byteOrder
{
	OFObject *object = [[[OFObject alloc] init] autorelease];
	void *pool = objc_autoreleasePoolPush();
	const of_unichar_t *characters = [self characters];
	size_t length = [self length];
	uint16_t *ret;
	size_t i, j;
	BOOL swap = (byteOrder != OF_BYTE_ORDER_NATIVE);

	/* Allocate memory for the worst case */
	ret = [object allocMemoryWithSize: sizeof(uint16_t)
				    count: length * 2];

	j = 0;

	for (i = 0; i < length; i++) {
		of_unichar_t c = characters[i];

		if (c > 0x10FFFF)
			@throw [OFInvalidEncodingException
			    exceptionWithClass: [self class]];

		if (swap) {
			if (c > 0xFFFF) {
				c -= 0x10000;
				ret[j++] = OF_BSWAP16(0xD800 | (c >> 10));
				ret[j++] = OF_BSWAP16(0xDC00 | (c & 0x3FF));
			} else
				ret[j++] = OF_BSWAP16(c);
		} else {
			if (c > 0xFFFF) {
				c -= 0x10000;
				ret[j++] = 0xD800 | (c >> 10);
				ret[j++] = 0xDC00 | (c & 0x3FF);
			} else
				ret[j++] = c;
		}
	}

	@try {
		ret = [object resizeMemory: ret
				      size: sizeof(uint16_t)
				     count: j];
	} @catch (OFOutOfMemoryException *e) {
		/* We don't care, as we only tried to make it smaller */
	}

	objc_autoreleasePoolPop(pool);

	return ret;
}

- (size_t)UTF16StringLength
{
	const of_unichar_t *characters = [self characters];
	size_t i, length, UTF16StringLength;

	length = UTF16StringLength = [self length];

	for (i = 0; i < length; i++)
		if (characters[i] > 0xFFFF)
			UTF16StringLength++;

	return UTF16StringLength;
}

- (void)writeToFile: (OFString*)path
{
	void *pool = objc_autoreleasePoolPush();
	OFFile *file;

	file = [OFFile fileWithPath: path

 * @return Whether the TLS socket should accept the received keychain
 */
-	  (BOOL)socket: (id <OFTLSSocket>)socket
  shouldAcceptKeychain: (OFArray*)keychain;
@end

/*!
 * @brief A protocol that should be implemented by 3rd-party libraries
 *	  implementing TLS.
 */
@protocol OFTLSSocket
#ifdef OF_HAVE_PROPERTIES
@property (assign) id <OFTLSSocketDelegate> delegate;
@property (copy) OFString *certificateFile, *privateKeyFile;
@property const char *privateKeyPassphrase;

	     @"0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF"
	    hexadecimalValue])

	TEST(@"-[characters]", (ua = [@"fööbär🀺" characters]) &&
	    !memcmp(ua, ucstr + 1, sizeof(ucstr) / sizeof(*ucstr)))

	TEST(@"-[UTF16String]", (u16a = [@"fööbär🀺" UTF16String]) &&

	    !memcmp(u16a, utf16str + 1, sizeof(utf16str) - sizeof(uint16_t)))

	TEST(@"-[UTF16String]", (u16a = [@"fööbär🀺"
#ifdef OF_BIG_ENDIAN
	    UTF16StringWithByteOrder: OF_BYTE_ORDER_LITTLE_ENDIAN]) &&
#else
	    UTF16StringWithByteOrder: OF_BYTE_ORDER_BIG_ENDIAN]) &&
#endif
	    !memcmp(u16a, sutf16str + 1, sizeof(sutf16str) - sizeof(uint16_t)))

	TEST(@"-[UTF16StringLength]", [@"fööbär🀺" UTF16StringLength] == 8)

	TEST(@"-[MD5Hash]", [[@"asdfoobar" MD5Hash]
	    isEqual: @"184dce2ec49b5422c7cfd8728864db4c"])

	TEST(@"-[SHA1Hash]", [[@"asdfoobar" SHA1Hash]
	    isEqual: @"f5f81ac0a8b5cbfdc4585ec1ad32e7b3a12b9b49"])