0N/A/*
2362N/A * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A/*
0N/A * A test for
0N/A * 6469606: (process) Process.destroy() can kill wrong process (Unix)
0N/A * that is not suitable for use as a regression test, because it must
0N/A * create 32768 processes, and depends on perl.
0N/A */
0N/Aimport java.io.*;
0N/A
0N/Apublic class FeelingLucky {
0N/A
0N/A public static void main(String[] args) throws Throwable {
0N/A final Runtime rt = Runtime.getRuntime();
0N/A final String[] pidPrinter = {"/bin/sh", "-c", "echo $$"};
0N/A final Process minedProcess = rt.exec(pidPrinter);
0N/A int minedPid = 0;
0N/A final InputStream is = minedProcess.getInputStream();
0N/A int c;
0N/A while ((c = is.read()) >= '0' && c <= '9')
0N/A minedPid = 10 * minedPid + (c - '0');
0N/A System.out.printf("minedPid=%d%n", minedPid);
0N/A minedProcess.waitFor();
0N/A
0N/A final String[] magnum = {
0N/A "perl", "-e",
0N/A "my $punk = getppid();" +
0N/A "open TTY, '> /dev/tty';" +
0N/A "print TTY \"punk=$punk\\n\";" +
0N/A "for (my $i = 0; $i < 32768; $i++) {" +
0N/A " my $pid = fork();" +
0N/A " if ($pid == 0) {" +
0N/A " if ($$ == " + minedPid + ") {" +
0N/A " print TTY \"MATCH $$ $punk\\n\";" +
0N/A " $SIG{TERM} = sub {" +
0N/A " print TTY \"Got TERM $$ $punk\\n\";" +
0N/A " kill 9, $punk;" +
0N/A " exit; };" +
0N/A " $| = 1; print 'Go ahead. Make my day.';" +
0N/A " sleep 100;" +
0N/A " }" +
0N/A " exit;" +
0N/A " } else { " +
0N/A " waitpid($pid,0);" +
0N/A " break if $pid == " + minedPid + ";" +
0N/A " }" +
0N/A "}"
0N/A };
0N/A
0N/A Process p = rt.exec(magnum);
0N/A if (p.getInputStream().read() != -1) {
0N/A System.out.println("got a char");
0N/A minedProcess.destroy();
0N/A Thread.sleep(1000);
0N/A }
0N/A }
0N/A}