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 {
  32     buffer.reserve(1024);
  33 }
  34 
  35 ByteBuffer::~ByteBuffer()
  36 {
  37 }
  38 
  39 LPBYTE ByteBuffer::getPtr() {
  40     return &buffer[0];
  41 }
  42 
  43 size_t ByteBuffer::getPos() {
  44     return buffer.size();
  45 }
  46 
  47 void ByteBuffer::AppendString(wstring str) {
  48     size_t len = (str.size() + 1) * sizeof WCHAR;
  49     AppendBytes((BYTE*)str.c_str(), len);
  50 }
  51 
  52 void ByteBuffer::AppendWORD(WORD word) {
  53     AppendBytes((BYTE*)&word, sizeof WORD);
  54 }
  55 
  56 void ByteBuffer::Align(size_t bytesNumber) {
  57     size_t pos = getPos();
  58     if (pos % bytesNumber) {
  59         DWORD dwNull = 0;
  60         size_t len = bytesNumber - pos % bytesNumber;
  61         AppendBytes((BYTE*)&dwNull, len);
  62     }
  63 }
  64 
  65 void ByteBuffer::AppendBytes(BYTE* ptr, size_t len) {
  66     buffer.insert(buffer.end(), ptr, ptr + len);
  67 }
  68 
  69 void ByteBuffer::ReplaceWORD(size_t offset, WORD word) {
  70     ReplaceBytes(offset, (BYTE*)&word, sizeof WORD);
  71 }
  72 
  73 void ByteBuffer::ReplaceBytes(size_t offset, BYTE* ptr, size_t len) {
  74     for (size_t i = 0; i < len; i++) {
  75         buffer[offset + i] = *(ptr + i);
  76     }
  77 }

   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 }