2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
33 import java.io.IOException;
36 * Execute system commands. Warning: the current implementation is
39 public class ExecFunctions {
41 * Executes a full command (including arguments) in a subshell
42 * and returns the output of the command in a string. Output is
43 * redirected into a temporary fil which is then read into the string
45 public static String execIntoString(String command) throws IOException {
46 return new String(execIntoByteArray(command));
50 * Executes a full command (including arguments) in a subshell
51 * and returns the output of the command in an array of
52 * bytes. Output is redirected into a temporary file which is then
53 * read into an array of bytes
55 public static byte[] execIntoByteArray(String command) throws IOException {
56 File commandOutput = File.createTempFile("mircmd", "");
59 // WARNING: unix specific
60 exitStatus = Runtime.getRuntime().exec(new String[]{
63 ">" + commandOutput.getAbsolutePath()
66 catch (InterruptedException e) {
67 throw new IOException(e.toString());
69 if (exitStatus != 0) {
70 throw new IOException("command exit satus:" + exitStatus);
72 byte[] result = FileRoutines.readFileIntoByteArray
73 (commandOutput.getAbsolutePath());
74 commandOutput.delete();
79 * Executes a full command (including arguments) in a subshell.
80 * Standard input and output go to /dev/null
82 public static void simpleExec(String command)
86 // WARNING: unix specific
87 exitStatus = Runtime.getRuntime().exec(new String[]{
89 command + " " + ">/dev/null 2>/dev/null"
92 catch (InterruptedException e) {
93 throw new IOException(e.toString());
95 if (exitStatus != 0) {
96 throw new IOException("command exit satus:" + exitStatus);