3 files changed, 98 insertions, 0 deletions
diff --git a/nselib/data/jdwp-class/JDWPExecCmd.java b/nselib/data/jdwp-class/JDWPExecCmd.java
new file mode 100644
index 0000000..0b9af5d
--- /dev/null
+++ b/nselib/data/jdwp-class/JDWPExecCmd.java
@@ -0,0 +1,31 @@
+import java.io.*;
+
+/* This is the JDWPExecCmd source used for jdwp-exec script to execute
+ * a command on the remote system.
+ *
+ * It just executes the shell command passed as string argument to
+ * run() function and returns its output.
+ *
+ * Compile simply with:
+ * javac JDWPExecCmd.java (should be in the nselib/data/ directory).
+ *
+ * author = "Aleksandar Nikolic"
+ * license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+*/
+
+public class JDWPExecCmd {
+    public static String run(String cmd) {
+		String result = cmd + " output:\n";
+		try{
+			Process p = Runtime.getRuntime().exec(cmd);
+			BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
+			String line = null;
+			while ((line = in.readLine()) != null) {
+				result += line.trim()+"\n";
+			}
+			result += "\n";
+		}catch(Exception ex){
+			}
+		return result;
+	}
+}
diff --git a/nselib/data/jdwp-class/JDWPSystemInfo.java b/nselib/data/jdwp-class/JDWPSystemInfo.java
new file mode 100644
index 0000000..1ad4951
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+++ b/nselib/data/jdwp-class/JDWPSystemInfo.java
@@ -0,0 +1,41 @@
+import java.io.*;
+import java.util.Date;
+/* This is the JDWPSystemInfo source used for jdwp-info script to get remote
+ * system information.
+ *
+ * Compile simply with:
+ * javac JDWPSystemInfo.java (should be in the nselib/data/jdwp-class directory).
+ *
+ * author = "Aleksandar Nikolic"
+ * license = "Same as Nmap--See https://nmap.org/book/man-legal.html"
+*/
+
+public class JDWPSystemInfo {
+    public static String run() {
+		String result = "";
+		result += "Available processors: " +  Runtime.getRuntime().availableProcessors() + "\n";
+		result += "Free memory: " + Runtime.getRuntime().freeMemory() + "\n";
+		File[] roots = File.listRoots();
+		for (File root : roots) {
+			result += "File system root: " + root.getAbsolutePath() + "\n";
+			result += "Total space (bytes): " + root.getTotalSpace() + "\n";
+			result += "Free space (bytes): " + root.getFreeSpace() + "\n";
+		}
+		result += "Name of the OS: " + System.getProperty("os.name") + "\n";
+		result += "OS Version : " + System.getProperty("os.version") + "\n";
+		result += "OS patch level : " + System.getProperty("sun.os.patch.level") + "\n";
+		result += "OS Architecture: " + System.getProperty("os.arch") + "\n";
+		result += "Java version: " + System.getProperty("java.version") + "\n";
+		result += "Username: " + System.getProperty("user.name") + "\n";
+		result += "User home: " + System.getProperty("user.home") + "\n";
+		Date dateNow = new Date();
+		result += "System time: " + dateNow + "\n";
+
+		return result;
+	}
+
+	public static void main(String[] args){
+		System.out.println(run());
+	}
+
+}
diff --git a/nselib/data/jdwp-class/README.txt b/nselib/data/jdwp-class/README.txt
new file mode 100644
index 0000000..aaac1f5
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+++ b/nselib/data/jdwp-class/README.txt
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+This directory contains sources and compiled classes
+used by jdwp-* scripts.
+
+All classes must have run() method defined which is
+expected to return a string.
+Method run() can have arguments, but then the scripts
+would need to be modified to add those arguments when
+class is injected. As JDWPExecCmd has a run() method
+which accepts a string as its argument, see
+jdwp-exec script for details of passing the
+arguments to a method via JDWP.
+Arguments need to be tagged with their respective type.
+For other tags see http://docs.oracle.com/javase/6/docs/technotes/guides/jni/spec/types.html#wp9502 .
+Example from jdwp-exec:
+
+	local cmdID
+	status,cmdID = jdwp.createString(socket,0,cmd)
+	local runArgs = string.pack(">B I8", 0x4c, cmdID) -- 0x4c is object type tag
+	-- invoke run method
+	local result
+	status, result = jdwp.invokeObjectMethod(socket,0,injectedClass.instance,injectedClass.thread,injectedClass.id,runMethodID,1,runArgs)
+
+To compile these sources:
+# javac *.java
+
+