| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.tools.jaotc.binformat.macho; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| |
| final class MachOContainer { |
| |
| private final File outputFile; |
| private FileOutputStream outputStream; |
| private long fileOffset; |
| |
| MachOContainer(String fileName) { |
| |
| outputFile = new File(fileName); |
| if (outputFile.exists()) { |
| outputFile.delete(); |
| } |
| |
| try { |
| outputStream = new FileOutputStream(outputFile); |
| } catch (Exception e) { |
| System.out.println("MachOContainer: Can't create file " + fileName); |
| } |
| fileOffset = 0; |
| } |
| |
| void close() { |
| try { |
| outputStream.close(); |
| } catch (Exception e) { |
| System.out.println("MachOContainer: close failed"); |
| } |
| } |
| |
| void writeBytes(byte[] bytes) { |
| try { |
| outputStream.write(bytes); |
| } catch (Exception e) { |
| System.out.println("MachOContainer: writeBytes failed"); |
| } |
| fileOffset += bytes.length; |
| } |
| |
| // Write bytes to output file with up front alignment padding |
| void writeBytes(byte[] bytes, int alignment) { |
| try { |
| // Pad to alignment |
| while ((fileOffset & (alignment - 1)) != 0) { |
| outputStream.write(0); |
| fileOffset++; |
| } |
| outputStream.write(bytes); |
| } catch (Exception e) { |
| System.out.println("MachOContainer: writeBytes failed"); |
| } |
| fileOffset += bytes.length; |
| } |
| } |