1 /*
2 * Copyright 2005-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any 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;
112 String arch = System.getProperty("os.arch");
113 if (arch.equals("sparcv9")) {
114 exe += "sparcv9/java";
115 } else {
116 exe += "java";
117 }
118 String cmd = exe + " " + VMConnection.getDebuggeeVMOptions() +
119 " -agentlib:jdwp=transport=dt_socket" +
120 ",server=y" + ",suspend=y" + ",address=" + address +
121 " " + class_name;
122
123 System.out.println("Starting: " + cmd);
124
125 Process p = Runtime.getRuntime().exec(cmd);
126
127 IOHandler.handle(p.getInputStream());
128 IOHandler.handle(p.getErrorStream());
129
130 return p;
131 }
132
133 /*
134 * - pick a TCP port
135 * - Launch a server debuggee: server=y,suspend=y,address=${port}
136 * - run it to VM death
137 * - verify we saw no error
138 */
139 public static void main(String args[]) throws Exception {
140 // find a free port
141 ServerSocket ss = new ServerSocket(0);
142 int port = ss.getLocalPort();
143 ss.close();
144
145 String address = String.valueOf(port);
146
147 // launch the server debuggee
148 Process process = launch(address, "Exit0");
149
150 // wait for the debugge to be ready
151 while (!ready) {
152 try {
153 Thread.sleep(1000);
154 } catch(Exception ee) {
155 throw ee;
156 }
157 }
158
159 // Connect to the debuggee and handshake with garbage
160 Socket s = new Socket(InetAddress.getLocalHost(), port);
161 s.getOutputStream().write("Here's a poke in the eye".getBytes("UTF-8"));
162 s.close();
163
164 // Re-connect and to a partial handshake - don't disconnect
165 s = new Socket(InetAddress.getLocalHost(), port);
166 s.getOutputStream().write("JDWP-".getBytes("UTF-8"));
167
168
169 // attach to server debuggee and resume it so it can exit
170 AttachingConnector conn = (AttachingConnector)findConnector("com.sun.jdi.SocketAttach");
171 Map conn_args = conn.defaultArguments();
172 Connector.IntegerArgument port_arg =
173 (Connector.IntegerArgument)conn_args.get("port");
174 port_arg.setValue(port);
175 VirtualMachine vm = conn.attach(conn_args);
176
177 // The first event is always a VMStartEvent, and it is always in
178 // an EventSet by itself. Wait for it.
179 EventSet evtSet = vm.eventQueue().remove();
180 for (Event event: evtSet) {
181 if (event instanceof VMStartEvent) {
182 break;
183 }
184 throw new RuntimeException("Test failed - debuggee did not start properly");
185 }
186
187 vm.eventRequestManager().deleteAllBreakpoints();
188 vm.resume();
189
190 process.waitFor();
191 }
192
193 }