1 /*
2 * Copyright (c) 2005, 2013, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /* @test
25 * @bug 6306165 6432567
26 * @summary Check that a bad handshake doesn't cause a debuggee to abort
27 *
28 * @build VMConnection BadHandshakeTest Exit0
29 * @run main BadHandshakeTest
30 *
31 */
32 import java.io.InputStream;
33 import java.io.IOException;
34 import java.io.File;
35 import java.io.BufferedInputStream;
36 import java.net.ServerSocket;
37 import java.net.Socket;
38 import java.net.InetAddress;
39 import com.sun.jdi.Bootstrap;
40 import com.sun.jdi.VirtualMachine;
41 import com.sun.jdi.event.*;
42 import com.sun.jdi.connect.Connector;
43 import com.sun.jdi.connect.AttachingConnector;
44 import java.util.Map;
45 import java.util.List;
46 import java.util.Iterator;
47
48 public class BadHandshakeTest {
49
50 static volatile boolean ready = false;
51
52 /*
53 * Helper class to redirect process output/error
54 */
55 static class IOHandler implements Runnable {
56 InputStream in;
57
58 IOHandler(InputStream in) {
59 this.in = in;
60 }
61
62 static void handle(InputStream in) {
63 IOHandler handler = new IOHandler(in);
64 Thread thr = new Thread(handler);
65 thr.setDaemon(true);
66 thr.start();
67 }
68
69 public void run() {
70 try {
71 byte b[] = new byte[100];
72 for (;;) {
73 int n = in.read(b, 0, 100);
74 // The first thing that will get read is
75 // Listening for transport dt_socket at address: xxxxx
76 // which shows the debuggee is ready to accept connections.
77 ready = true;
78 if (n < 0) {
79 break;
80 }
81 String s = new String(b, 0, n, "UTF-8");
82 System.out.print(s);
83 }
84 } catch (IOException ioe) {
85 ioe.printStackTrace();
86 }
87 }
88
89 }
90
91 /*
92 * Find a connector by name
93 */
94 private static Connector findConnector(String name) {
95 List connectors = Bootstrap.virtualMachineManager().allConnectors();
96 Iterator iter = connectors.iterator();
97 while (iter.hasNext()) {
98 Connector connector = (Connector)iter.next();
99 if (connector.name().equals(name)) {
100 return connector;
101 }
102 }
103 return null;
104 }
105
106 /*
107 * Launch a server debuggee with the given address
108 */
109 private static Process launch(String address, String class_name) throws IOException {
110 String exe = System.getProperty("java.home")
111 + File.separator + "bin" + File.separator + "java";
112 String cmd = exe + " " + VMConnection.getDebuggeeVMOptions() +
113 " -agentlib:jdwp=transport=dt_socket" +
114 ",server=y" + ",suspend=y" + ",address=" + address +
115 " " + class_name;
116
117 System.out.println("Starting: " + cmd);
118
119 Process p = Runtime.getRuntime().exec(cmd);
120
121 IOHandler.handle(p.getInputStream());
122 IOHandler.handle(p.getErrorStream());
123
124 return p;
125 }
126
127 /*
128 * - pick a TCP port
129 * - Launch a server debuggee: server=y,suspend=y,address=${port}
130 * - run it to VM death
131 * - verify we saw no error
132 */
133 public static void main(String args[]) throws Exception {
134 // find a free port
135 ServerSocket ss = new ServerSocket(0);
136 int port = ss.getLocalPort();
137 ss.close();
138
139 String address = String.valueOf(port);
140
141 // launch the server debuggee
142 Process process = launch(address, "Exit0");
143
144 // wait for the debugge to be ready
145 while (!ready) {
146 try {
147 Thread.sleep(1000);
148 } catch(Exception ee) {
149 throw ee;
150 }
151 }
152
153 // Connect to the debuggee and handshake with garbage
154 Socket s = new Socket(InetAddress.getLocalHost(), port);
155 s.getOutputStream().write("Here's a poke in the eye".getBytes("UTF-8"));
156 s.close();
157
158 // Re-connect and to a partial handshake - don't disconnect
159 s = new Socket(InetAddress.getLocalHost(), port);
160 s.getOutputStream().write("JDWP-".getBytes("UTF-8"));
161
162
163 // attach to server debuggee and resume it so it can exit
164 AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
165 Map conn_args = conn.defaultArguments();
166 Connector.IntegerArgument port_arg =
167 (Connector.IntegerArgument)conn_args.get("port");
168 port_arg.setValue(port);
169 VirtualMachine vm = conn.attach(conn_args);
170
171 // The first event is always a VMStartEvent, and it is always in
172 // an EventSet by itself. Wait for it.
173 EventSet evtSet = vm.eventQueue().remove();
174 for (Event event: evtSet) {
175 if (event instanceof VMStartEvent) {
176 break;
177 }
178 throw new RuntimeException("Test failed - debuggee did not start properly");
179 }
180
181 vm.eventRequestManager().deleteAllBreakpoints();
182 vm.resume();
183
184 process.waitFor();
185 }
186
187 }