/* * Copyright 2019 John "topjohnwu" Wu * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.topjohnwu.superuser.internal; import androidx.annotation.NonNull; import java.io.ByteArrayOutputStream; import java.io.DataOutput; import java.io.DataOutputStream; import java.io.IOException; interface DataOutputImpl extends DataOutput { @Override default void write(int b) throws IOException { byte[] buf = new byte[1]; buf[0] = (byte) (b & 0xFF); write(buf); } @Override default void write(@NonNull byte[] b) throws IOException { write(b, 0, b.length); } @Override default void writeBoolean(boolean v) throws IOException { write(v ? 1 : 0); } @Override default void writeByte(int v) throws IOException { write(v); } @Override default void writeShort(int v) throws IOException { byte[] b = new byte[2]; b[0] = (byte)(v >>> 8); b[1] = (byte)(v >>> 0); write(b); } @Override default void writeChar(int v) throws IOException { writeShort(v); } @Override default void writeInt(int v) throws IOException { byte[] b = new byte[4]; b[0] = (byte)(v >>> 24); b[1] = (byte)(v >>> 16); b[2] = (byte)(v >>> 8); b[3] = (byte)(v >>> 0); write(b); } @Override default void writeLong(long v) throws IOException { byte[] b = new byte[8]; b[0] = (byte)(v >>> 56); b[1] = (byte)(v >>> 48); b[2] = (byte)(v >>> 40); b[3] = (byte)(v >>> 32); b[4] = (byte)(v >>> 24); b[5] = (byte)(v >>> 16); b[6] = (byte)(v >>> 8); b[7] = (byte)(v >>> 0); write(b); } @Override default void writeFloat(float v) throws IOException { writeInt(Float.floatToIntBits(v)); } @Override default void writeDouble(double v) throws IOException { writeLong(Double.doubleToLongBits(v)); } @Override default void writeBytes(@NonNull String s) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); DataOutputStream out = new DataOutputStream(buf); out.writeBytes(s); write(buf.toByteArray()); } @Override default void writeChars(@NonNull String s) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); DataOutputStream out = new DataOutputStream(buf); out.writeChars(s); write(buf.toByteArray()); } @Override default void writeUTF(@NonNull String s) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); DataOutputStream out = new DataOutputStream(buf); out.writeUTF(s); write(buf.toByteArray()); } }