ObjFW  Check-in [f91dbd8975]

	case HUFFMAN_TREE:
#define CTX _context.huffmanTree
		if OF_LIKELY (CTX.value == 0xFE) {
			if OF_LIKELY (CTX.litLenCodesCount == 0xFF) {
				if OF_UNLIKELY (!tryReadBits(self, &bits, 5))
					return bytesWritten;

				if OF_UNLIKELY (bits > 30)
				if OF_UNLIKELY (bits > 29)
					@throw [OFInvalidFormatException
					    exception];

				CTX.litLenCodesCount = bits;
			}

			if OF_LIKELY (CTX.distCodesCount == 0xFF) {
				if OF_UNLIKELY (!tryReadBits(self, &bits, 5))
					return bytesWritten;

				CTX.distCodesCount = bits;
			}

			if OF_LIKELY (CTX.codeLenCodesCount == 0xFF) {
				if OF_UNLIKELY (!tryReadBits(self, &bits, 4))
					return bytesWritten;

				if OF_UNLIKELY (bits + 4 > 19)
					@throw [OFInvalidFormatException
					    exception];

				CTX.codeLenCodesCount = bits;
			}

			if OF_LIKELY (CTX.lengths == NULL) {
				CTX.lengths = [self allocMemoryWithSize: 19];
				memset(CTX.lengths, 0, 19);
			}

		}

		if OF_LIKELY (CTX.lengths == NULL)
			CTX.lengths = [self allocMemoryWithSize:
			    CTX.litLenCodesCount + CTX.distCodesCount + 258];

		for (i = CTX.receivedCount;
		    i < CTX.litLenCodesCount + CTX.distCodesCount + 258; i++) {
		    i < CTX.litLenCodesCount + CTX.distCodesCount + 258;) {
			uint_fast8_t j, count;

			if OF_LIKELY (CTX.value == 0xFF) {
				if OF_UNLIKELY (!walkTree(self, &CTX.treeIter,
				    &value)) {
					CTX.receivedCount = i;
					return bytesWritten;
				}

				CTX.treeIter = CTX.codeLenTree;

				if (value < 16) {
					CTX.lengths[i] = value;
					CTX.lengths[i++] = value;
					continue;
				}
			} else
				value = CTX.value;

			switch (value) {
			case 16:

			if OF_UNLIKELY (i + count >
			    CTX.litLenCodesCount + CTX.distCodesCount + 258)
				@throw [OFInvalidFormatException exception];

			for (j = 0; j < count; j++)
				CTX.lengths[i++] = value;
			i--;

			CTX.value = 0xFF;
		}

		releaseTree(CTX.codeLenTree);

		CTX.litLenTree = constructTree(CTX.lengths,

					_slidingWindow = [self
					    allocMemoryWithSize: 0x8000];
					/* Avoid leaking data */
					memset(_slidingWindow, 0, 0x8000);
				}

				_slidingWindow[_slidingWindowIndex] = CTX.value;
				_slidingWindowIndex = (_slidingWindowIndex +
				    1) & 0x7FFF;
				_slidingWindowIndex =
				    (_slidingWindowIndex + 1) & 0x7FFF;

				CTX.state = AWAIT_CODE;
				CTX.treeIter = CTX.litLenTree;
			}

			if OF_UNLIKELY (CTX.state == AWAIT_LENGTH_EXTRA_BITS) {
				if OF_UNLIKELY (!tryReadBits(self, &bits,

					_slidingWindow = [self
					    allocMemoryWithSize: 0x8000];
					/* Avoid leaking data */
					memset(_slidingWindow, 0, 0x8000);
				}

				_slidingWindow[_slidingWindowIndex] = value;
				_slidingWindowIndex = (_slidingWindowIndex +
				    1) & 0x7FFF;
				_slidingWindowIndex =
				    (_slidingWindowIndex + 1) & 0x7FFF;

				CTX.treeIter = CTX.litLenTree;
				continue;
			}

			if OF_UNLIKELY (value > 285)
				@throw [OFInvalidFormatException exception];