ObjFW  Diff

			if (c >= '0' && c <= '9')
				byte += (c - '0') << shift;
			else if (c >= 'A' && c <= 'F')
				byte += (c - 'A' + 10) << shift;
			else if (c >= 'a' && c <= 'f')
				byte += (c - 'a' + 10) << shift;
			else {
				of_free(retCString);
				free(retCString);
				@throw [OFInvalidFormatException exception];
			}

			if (++state == 3) {
				retCString[i++] = byte;
				state = 0;
				byte = 0;
			}

			break;
		}
	}
	retCString[i] = '\0';

	objc_autoreleasePoolPop(pool);

	if (state != 0) {
		of_free(retCString);
		free(retCString);
		@throw [OFInvalidFormatException exception];
	}

	@try {
		retCString = of_realloc(retCString, 1, i + 1);
	} @catch (OFOutOfMemoryException *e) {
		/* We don't care if it fails, as we only made it smaller. */