ObjFW  Diff

		size_t pageSize = [OFSystemInfo pageSize];
		OFStream *sourceStream = nil;
		OFStream *destinationStream = nil;
		char *buffer;

		buffer = OFAllocMemory(1, pageSize);
		@try {
			sourceStream = [[OFURLHandler handlerForURL: source]
			    openItemAtURL: source
				     mode: @"r"];
			destinationStream = [[OFURLHandler handlerForURL:
			    destination] openItemAtURL: destination
						  mode: @"w"];
			sourceStream = [OFURLHandler openItemAtURL: source
							      mode: @"r"];
			destinationStream = [OFURLHandler
			    openItemAtURL: destination
				     mode: @"w"];

			while (!sourceStream.atEndOfStream) {
				size_t length;

				length = [sourceStream
				    readIntoBuffer: buffer
					    length: pageSize];