Slice by read size, not buffer size

index.js

@@ -34,13 +34,15 @@ function doRead(handle, length) {
 			return buffer;
 		} else if (result.bytesRead < length) {
 			// TODO: For possible future performance optimization, consider reusing the remaining Buffer allocation for a next read, if possible. Need more data on how often this case occurs first, though, to justify the added complexity.
-			return buffer.slice(0, length);
+			return buffer.slice(0, result.bytesRead);
 		} else {
 			throw new Error(`Read more bytes (${result.bytesRead}) than the specified 'length' (${length}); this should never happen!`);
 		}
 	});
 }
 
+// FIXME: This should probably *only* allow reading mode flags
+
 module.exports = function createReadFileStream(_path, _options) {
 	let [ path, options ] = validateArguments(arguments, [
 		[ "path", required, isString ],
@@ -54,6 +56,9 @@ module.exports = function createReadFileStream(_path, _options) {
 	
 	let handlePromise = fs.open(path, options.flag, options.mode);
 
+	// Silence unhandled rejection warnings until later
+	handlePromise.catch(() => {});
+
 	// TODO: Metadata, including stream label and file size/type/path
 	return pipe([
 		simpleSource({