1 /* 2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "ByteBuffer.h" 27 28 #include <stdio.h> 29 30 ByteBuffer::ByteBuffer() { 31 buffer.reserve(1024); 32 } 33 34 ByteBuffer::~ByteBuffer() { 35 } 36 37 LPBYTE ByteBuffer::getPtr() { 38 return &buffer[0]; 39 } 40 41 size_t ByteBuffer::getPos() { 42 return buffer.size(); 43 } 44 45 void ByteBuffer::AppendString(wstring str) { 46 size_t len = (str.size() + 1) * sizeof (WCHAR); 47 AppendBytes((BYTE*) str.c_str(), len); 48 } 49 50 void ByteBuffer::AppendWORD(WORD word) { 51 AppendBytes((BYTE*) & word, sizeof (WORD)); 52 } 53 54 void ByteBuffer::Align(size_t bytesNumber) { 55 size_t pos = getPos(); 56 if (pos % bytesNumber) { 57 DWORD dwNull = 0; 58 size_t len = bytesNumber - pos % bytesNumber; 59 AppendBytes((BYTE*) & dwNull, len); 60 } 61 } 62 63 void ByteBuffer::AppendBytes(BYTE* ptr, size_t len) { 64 buffer.insert(buffer.end(), ptr, ptr + len); 65 } 66 67 void ByteBuffer::ReplaceWORD(size_t offset, WORD word) { 68 ReplaceBytes(offset, (BYTE*) & word, sizeof (WORD)); 69 } 70 71 void ByteBuffer::ReplaceBytes(size_t offset, BYTE* ptr, size_t len) { 72 for (size_t i = 0; i < len; i++) { 73 buffer[offset + i] = *(ptr + i); 74 } 75 }