Fix for PR libgcj/7570 and PR libgcj/7578:

2002-08-13  Jesse Rosenstock  <jmr@ugcs.caltech.edu>

	Fix for PR libgcj/7570 and PR libgcj/7578:
	* java/lang/natPosixProcess.cc: Include java/io/File.h.
	(startProcess): Handle new `dir' argument.
	* java/lang/Win32Process.java (ConcreteProcess): Added `dir'
	argument.
	* java/lang/PosixProcess.java (ConcreteProcess): Added `dir'
	argument.
	(startProcess): Likewise.
	* java/lang/EcosProcess.java (ConcreteProcess): Added `dir'
	argument.
	* java/lang/Runtime.java (execInternal): Added `dir' argument.
	(exec): Don't create new environment if ENV==null.  Pass DIR to
	execInternal.
	* java/lang/natRuntime.cc: Include java/io/File.h.
	(execInternal): Added `dir' argument.

From-SVN: r56268

libjava/ChangeLog

+2002-08-13  Jesse Rosenstock  <jmr@ugcs.caltech.edu>
+
+	Fix for PR libgcj/7570 and PR libgcj/7578:
+	* java/lang/natPosixProcess.cc: Include java/io/File.h.
+	(startProcess): Handle new `dir' argument.
+	* java/lang/Win32Process.java (ConcreteProcess): Added `dir'
+	argument.
+	* java/lang/PosixProcess.java (ConcreteProcess): Added `dir'
+	argument.
+	(startProcess): Likewise.
+	* java/lang/EcosProcess.java (ConcreteProcess): Added `dir'
+	argument.
+	* java/lang/Runtime.java (execInternal): Added `dir' argument.
+	(exec): Don't create new environment if ENV==null.  Pass DIR to
+	execInternal.
+	* java/lang/natRuntime.cc: Include java/io/File.h.
+	(execInternal): Added `dir' argument.
+
 2002-08-13  Jesse Rosenstock  <jmr@fulcrummicro.com>
 
 	* java/io/RandomAccessFile.java (skipBytes): Return number of

libjava/java/lang/EcosProcess.java

@@ -10,6 +10,7 @@ details.  */
 
 package java.lang;
 
+import java.io.File;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.IOException;
@@ -52,7 +53,10 @@ final class ConcreteProcess extends Process
     return 0;
   }
 
-  public ConcreteProcess (String[] progarray, String[] envp) throws IOException
+  public ConcreteProcess (String[] progarray,
+                          String[] envp,
+                          File dir)
+    throws IOException
   {
     throw new IOException ("eCos processes unimplemented");
   }

libjava/java/lang/PosixProcess.java

@@ -10,6 +10,7 @@ details.  */
 
 package java.lang;
 
+import java.io.File;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.IOException;
@@ -53,15 +54,20 @@ final class ConcreteProcess extends Process
 
   // This is used for actual initialization, as we can't write a
   // native constructor.
-  public native void startProcess (String[] progarray, String[] envp)
+  public native void startProcess (String[] progarray,
+                                   String[] envp,
+                                   File dir)
     throws IOException;
 
   // This file is copied to `ConcreteProcess.java' before
   // compilation.  Hence the constructor name apparently does not
   // match the file name.
-  public ConcreteProcess (String[] progarray, String[] envp) throws IOException
+  public ConcreteProcess (String[] progarray,
+                          String[] envp,
+                          File dir)
+    throws IOException
   {
-    startProcess (progarray, envp);
+    startProcess (progarray, envp, dir);
   }
 
   // The process id.  This is cast to a pid_t on the native side.

libjava/java/lang/Runtime.java

@@ -526,7 +526,6 @@ public class Runtime
    *         entries
    * @throws IndexOutOfBoundsException if cmd is length 0
    * @since 1.3
-   * @XXX Ignores dir, for now
    */
   public Process exec(String[] cmd, String[] env, File dir)
     throws IOException
@@ -534,10 +533,7 @@ public class Runtime
     SecurityManager sm = securityManager; // Be thread-safe!
     if (sm != null)
       sm.checkExec(cmd[0]);
-    if (env == null)
-      env = new String[0];
-    //XXX Should be:    return execInternal(cmd, env, dir);
-    return execInternal(cmd, env);
+    return execInternal(cmd, env, dir);
   }
 
   /**
@@ -729,7 +725,6 @@ public class Runtime
    * the environment should contain name=value mappings. If directory is null,
    * use the current working directory; otherwise start the process in that
    * directory.
-   * XXX Add directory support.
    *
    * @param cmd the non-null command tokens
    * @param env the non-null environment setup
@@ -737,8 +732,7 @@ public class Runtime
    * @return the newly created process
    * @throws NullPointerException if cmd or env have null elements
    */
-  //  native Process execInternal(String[] cmd, String[] env, File dir);
-  native Process execInternal(String[] cmd, String[] env);
+  native Process execInternal(String[] cmd, String[] env, File dir);
 
   /**
    * Get the system properties. This is done here, instead of in System,

libjava/java/lang/Win32Process.java

@@ -10,6 +10,7 @@ details.  */
 
 package java.lang;
 
+import java.io.File;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.io.IOException;
@@ -60,7 +61,10 @@ final class ConcreteProcess extends Process
     throw new Error("not implemented");
   }
 
-  public ConcreteProcess (String[] progarray, String[] envp) throws IOException
+  public ConcreteProcess (String[] progarray,
+                          String[] envp,
+                          File dir)
+    throws IOException
   {
     throw new IOException("not implemented");
   }

libjava/java/lang/natPosixProcess.cc

@@ -30,6 +30,7 @@ details.  */
 #include <java/lang/InterruptedException.h>
 #include <java/lang/NullPointerException.h>
 #include <java/lang/Thread.h>
+#include <java/io/File.h>
 #include <java/io/FileDescriptor.h>
 #include <java/io/FileInputStream.h>
 #include <java/io/FileOutputStream.h>
@@ -116,7 +117,8 @@ myclose (int &fd)
 
 void
 java::lang::ConcreteProcess::startProcess (jstringArray progarray,
-					   jstringArray envp)
+					   jstringArray envp,
+					   java::io::File *dir)
 {
   using namespace java::io;
 
@@ -188,7 +190,7 @@ java::lang::ConcreteProcess::startProcess (jstringArray progarray,
 
       if (pid == 0)
 	{
-	  // Child process, so remap descriptors and exec.
+	  // Child process, so remap descriptors, chdir and exec.
 
 	  if (envp)
 	    {
@@ -229,6 +231,19 @@ java::lang::ConcreteProcess::startProcess (jstringArray progarray,
 	  close (outp[0]);
 	  close (outp[1]);
 	  close (msgp[0]);
+          
+	  // Change directory.
+	  if (dir != NULL)
+	    {
+	      // We don't care about leaking memory here; this process
+	      // is about to terminate one way or another.
+	      if (chdir (new_string (dir->getPath ())) != 0)
+		{
+		  char c = errno;
+		  write (msgp[1], &c, 1);
+		  _exit (127);
+		}
+	    }
 
 	  execvp (args[0], args);
 

libjava/java/lang/natRuntime.cc

@@ -21,6 +21,7 @@ details.  */
 #include <java/lang/UnsatisfiedLinkError.h>
 #include <gnu/gcj/runtime/FileDeleter.h>
 #include <gnu/gcj/runtime/FinalizerThread.h>
+#include <java/io/File.h>
 #include <java/util/Properties.h>
 #include <java/util/TimeZone.h>
 #include <java/lang/StringBuffer.h>
@@ -538,9 +539,10 @@ java::lang::Runtime::insertSystemProperties (java::util::Properties *newprops)
 
 java::lang::Process *
 java::lang::Runtime::execInternal (jstringArray cmd,
-				   jstringArray env)
+				   jstringArray env,
+				   java::io::File *dir)
 {
-  return new java::lang::ConcreteProcess (cmd, env);
+  return new java::lang::ConcreteProcess (cmd, env, dir);
 }
 
 jint