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How to use writeString method of sun.tools.attach.BsdVirtualMachine class

Best Powermock code snippet using sun.tools.attach.BsdVirtualMachine.writeString

...139        IOException ioe = null;140        // connected - write request141        // <ver> <cmd> <args...>142        try {143            writeString(s, PROTOCOL_VERSION);144            writeString(s, cmd);145            for (int i=0; i<3; i++) {146                if (i < args.length && args[i] != null) {147                    writeString(s, (String)args[i]);148                } else {149                    writeString(s, "");150                }151            }152        } catch (IOException x) {153            ioe = x;154        }155        // Create an input stream to read reply156        SocketInputStream sis = new SocketInputStream(s);157        // Read the command completion status158        int completionStatus;159        try {160            completionStatus = readInt(sis);161        } catch (IOException x) {162            sis.close();163            if (ioe != null) {164                throw ioe;165            } else {166                throw x;167            }168        }169        if (completionStatus != 0) {170            // read from the stream and use that as the error message171            String message = readErrorMessage(sis);172            sis.close();173            // In the event of a protocol mismatch then the target VM174            // returns a known error so that we can throw a reasonable175            // error.176            if (completionStatus == ATTACH_ERROR_BADVERSION) {177                throw new IOException("Protocol mismatch with target VM");178            }179            // Special-case the "load" command so that the right exception is180            // thrown.181            if (cmd.equals("load")) {182                throw new AgentLoadException("Failed to load agent library");183            } else {184                if (message == null) {185                    throw new AttachOperationFailedException("Command failed in target VM");186                } else {187                    throw new AttachOperationFailedException(message);188                }189            }190        }191        // Return the input stream so that the command output can be read192        return sis;193    }194    /*195     * InputStream for the socket connection to get target VM196     */197    private class SocketInputStream extends InputStream {198        int s;199        public SocketInputStream(int s) {200            this.s = s;201        }202        public synchronized int read() throws IOException {203            byte b[] = new byte[1];204            int n = this.read(b, 0, 1);205            if (n == 1) {206                return b[0] & 0xff;207            } else {208                return -1;209            }210        }211        public synchronized int read(byte[] bs, int off, int len) throws IOException {212            if ((off < 0) || (off > bs.length) || (len < 0) ||213                ((off + len) > bs.length) || ((off + len) < 0)) {214                throw new IndexOutOfBoundsException();215            } else if (len == 0) {216                return 0;217            }218            return BsdVirtualMachine.read(s, bs, off, len);219        }220        public void close() throws IOException {221            BsdVirtualMachine.close(s);222        }223    }224    // Return the socket file for the given process.225    // Checks temp directory for .java_pid<pid>.226    private String findSocketFile(int pid) {227        String fn = ".java_pid" + pid;228        File f = new File(tmpdir, fn);229        return f.exists() ? f.getPath() : null;230    }231    /*232     * Write/sends the given to the target VM. String is transmitted in233     * UTF-8 encoding.234     */235    private void writeString(int fd, String s) throws IOException {236        if (s.length() > 0) {237            byte b[];238            try {239                b = s.getBytes("UTF-8");240            } catch (java.io.UnsupportedEncodingException x) {241                throw new InternalError();242            }243            BsdVirtualMachine.write(fd, b, 0, b.length);244        }245        byte b[] = new byte[1];246        b[0] = 0;247        write(fd, b, 0, 1);248    }249    //-- native methods...

Source: patch-j2se-attach-BSDVirtualMachine.java

...148+149+        // connected - write request150+           // <ver> <cmd> <args...>151+        try {152+            writeString(s, PROTOCOL_VERSION);153+            writeString(s, cmd);154+155+            for (int i=0; i<3; i++) {156+                if (i < args.length && args[i] != null) {157+                    writeString(s, (String)args[i]);158+                } else {159+                    writeString(s, "");160+                }161+            }162+        } catch (IOException x) {163+            ioe = x;164+        }165+        166+167+        // Create an input stream to read reply168+        SocketInputStream sis = new SocketInputStream(s);169+170+        // Read the command completion status171+        int completionStatus;172+        try {173+            completionStatus = readInt(sis);174+        } catch (IOException x) {175+            sis.close();176+            if (ioe != null) {177+                throw ioe;178+            } else {179+                throw x;180+            }181+        }182+183+        if (completionStatus != 0) {184+            sis.close();185+186+            // In the event of a protocol mismatch then the target VM187+            // returns a known error so that we can throw a reasonable188+            // error.189+            if (completionStatus == ATTACH_ERROR_BADVERSION) {190+                throw new IOException("Protocol mismatch with target VM");191+            }192+193+            // Special-case the "load" command so that the right exception is194+            // thrown.195+            if (cmd.equals("load")) {196+                throw new AgentLoadException("Failed to load agent library");197+            } else {198+                throw new IOException("Command failed in target VM");199+            }200+        }201+202+        // Return the input stream so that the command output can be read203+        return sis;204+    }205+206+    /*207+     * InputStream for the socket connection to get target VM208+     */209+    private class SocketInputStream extends InputStream {210+        int s;211+212+        public SocketInputStream(int s) {213+            this.s = s;214+        }215+216+        public synchronized int read() throws IOException {217+            byte b[] = new byte[1];218+            int n = this.read(b, 0, 1);219+            if (n == 1) {220+                return b[0] & 0xff;221+            } else {222+                return -1;223+            }224+        }225+226+        public synchronized int read(byte[] bs, int off, int len) throws IOException {227+            if ((off < 0) || (off > bs.length) || (len < 0) ||228+                ((off + len) > bs.length) || ((off + len) < 0)) {229+                throw new IndexOutOfBoundsException();230+            } else if (len == 0)231+                return 0;232+233+            return BSDVirtualMachine.read(s, bs, off, len);234+        }235+236+        public void close() throws IOException {237+            BSDVirtualMachine.close(s);238+        }239+    }240+241+242+    // Return the socket file for the given process.243+    // Checks working directory of process for .java_pid<pid>. If not244+    // found it looks in /tmp.245+    private String findSocketFile(int pid) {246+        // First check for a .java_pid<pid> file in the working directory247+        // of the target process248+        String fn = ".java_pid" + pid;249+        String path = getTmpDir() + fn;250+        File f = new File(path);251+252+        if (!f.exists()) {253+            return null;            // not found254+        }255+        return path;256+    }257+258+    /*259+     * Write/sends the given to the target VM. String is transmitted in260+     * UTF-8 encoding.261+     */262+    private void writeString(int fd, String s) throws IOException {263+        if (s.length() > 0) {264+            byte b[];265+            try {266+                b = s.getBytes("UTF-8");267+            } catch (java.io.UnsupportedEncodingException x) { 268+                throw new InternalError();269+            }        270+            BSDVirtualMachine.write(fd, b, 0, b.length);271+        }272+        byte b[] = new byte[1];273+        b[0] = 0;274+        write(fd, b, 0, 1);275+    }276+...

writeString

Using AI Code Generation

1import sun.tools.attach.*;2public class 4 {3    public static void main(String[] args) throws Exception {4        String pid = args[0];5        String str = args[1];6        String strAddress = args[2];7        String strLength = args[3];8        BsdVirtualMachine vm = new BsdVirtualMachine(pid);9        long address = Long.parseLong(strAddress, 16);10        int length = Integer.parseInt(strLength);11        vm.writeString(address, str, length);12    }13}14import sun.tools.attach.*;15public class 5 {16    public static void main(String[] args) throws Exception {17        String pid = args[0];18        String strAddress = args[1];19        String strLength = args[2];20        BsdVirtualMachine vm = new BsdVirtualMachine(pid);21        long address = Long.parseLong(strAddress, 16);22        int length = Integer.parseInt(strLength);23        String str = vm.readString(address, length);24        System.out.println(str);25    }26}

writeString

Using AI Code Generation

1import sun.tools.attach.BsdVirtualMachine;2public class 4 {3    public static void main(String[] args) throws Exception {4        if (args.length != 2) {5            System.err.println("Usage: java 4 <pid> <string>");6            System.exit(1);7        }8        int pid = Integer.parseInt(args[0]);9        String str = args[1];10        BsdVirtualMachine vm = new BsdVirtualMachine(pid);11        vm.writeString(str, true);12        vm.detach();13    }14}

writeString

Using AI Code Generation

1import sun.tools.attach.BsdVirtualMachine;2import java.io.IOException;3public class 4 {4public static void main(String args[]) throws IOException {5BsdVirtualMachine vm = new BsdVirtualMachine("1234");6vm.writeString(0x1234, "Hello World");7}8}

writeString

Using AI Code Generation

1import sun.tools.attach.*;2public class 4 {3  public static void main(String[] args) throws Exception {4    if (args.length != 3) {5      System.out.println("Usage: java 4 <pid> <filename> <string>");6      System.exit(1);7    }8    int pid = Integer.parseInt(args[0]);9    String filename = args[1];10    String string = args[2];11    BsdVirtualMachine vm = new BsdVirtualMachine(pid);12    vm.writeString(filename, string, 0, false);13    vm.detach();14  }15}16import sun.tools.attach.*;17public class 5 {18  public static void main(String[] args) throws Exception {19    if (args.length != 3) {20      System.out.println("Usage: java 5 <pid> <filename> <byte array>");21      System.exit(1);22    }23    int pid = Integer.parseInt(args[0]);24    String filename = args[1];25    byte[] bytes = args[2].getBytes();26    BsdVirtualMachine vm = new BsdVirtualMachine(pid);27    vm.writeBytes(filename, bytes, 0, false);28    vm.detach();29  }30}

writeString

Using AI Code Generation

1import sun.tools.attach.BsdVirtualMachine;2public class 4 {3    public static void main(String[] args) throws Exception {4        if (args.length != 3) {5            System.err.println("Usage: java 4 <pid of process> <string to write> <file path to write to>");6            System.exit(1);7        }8        int pid = Integer.parseInt(args[0]);9        String str = args[1];10        String path = args[2];11        BsdVirtualMachine vm = new BsdVirtualMachine(pid);12        vm.writeString(path, str, false);13    }14}

writeString

Using AI Code Generation

1import sun.tools.attach.*;2import com.sun.tools.attach.*;3public class 4 {4    public static void main(String[] args) throws Exception {5        VirtualMachine vm = VirtualMachine.attach(args[0]);6        BsdVirtualMachine bsdvm = (BsdVirtualMachine) vm;7        bsdvm.writeString("hello world!8");9    }10}11import sun.tools.attach.*;12import com.sun.tools.attach.*;13public class 5 {14    public static void main(String[] args) throws Exception {15        VirtualMachine vm = VirtualMachine.attach(args[0]);16        SolarisVirtualMachine solarisvm = (SolarisVirtualMachine) vm;17        solarisvm.writeString("hello world!18");19    }20}

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