1 files changed, 136 insertions, 0 deletions
diff --git a/libjava/classpath/native/jni/native-lib/cpproc.c b/libjava/classpath/native/jni/native-lib/cpproc.c
new file mode 100644
index 00000000000..b6e9030b562
--- /dev/null
+++ b/libjava/classpath/native/jni/native-lib/cpproc.c
@@ -0,0 +1,136 @@
+/* cpproc.c -
+   Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+#include "config.h"
+#include <jni.h>
+#include "cpproc.h"
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+
+static void close_all_fds(int *fds, int numFds)
+{
+  int i;
+
+  for (i = 0; i < numFds; i++)
+    close(fds[i]);
+}
+
+int cpproc_forkAndExec (char * const *commandLine, char * const * newEnviron,
+			int *fds, int pipe_count, pid_t *out_pid, const char *wd)
+{
+  int local_fds[6];
+  int i;
+  pid_t pid;
+
+  for (i = 0; i < (pipe_count * 2); i += 2)
+    {
+      if (pipe(&local_fds[i]) < 0)
+	{
+	  int err = errno;
+
+	  close_all_fds(local_fds, i);
+	  
+	  return err;
+	}
+    }
+  
+  pid = fork();
+  
+  switch (pid)
+    {
+    case 0:
+      dup2(local_fds[0], 0);
+      dup2(local_fds[3], 1);
+      if (pipe_count == 3)
+	dup2(local_fds[5], 2);
+      else
+	dup2(1, 2);
+
+      close_all_fds(local_fds, pipe_count * 2);
+
+      chdir(wd);
+      if (newEnviron == NULL)
+	execvp(commandLine[0], commandLine);
+      else
+	execve(commandLine[0], commandLine, newEnviron);
+      
+      abort();
+      
+      break;
+    case -1:
+      {
+	int err = errno;
+	
+	close_all_fds(local_fds, pipe_count * 2);
+	return err;
+      }
+    default: 
+      close(local_fds[0]);
+      close(local_fds[3]);
+      if (pipe_count == 3)
+	close(local_fds[5]);
+
+      fds[0] = local_fds[1];
+      fds[1] = local_fds[2];
+      fds[2] = local_fds[4];
+      *out_pid = pid;
+      return 0;
+    }
+}
+
+int cpproc_waitpid (pid_t pid, int *status, pid_t *outpid, int options)
+{
+  pid_t wp = waitpid(pid, status, options);
+
+  if (wp < 0)
+    return errno;
+
+  *outpid = wp;
+  return 0;
+}
+
+int cpproc_kill (pid_t pid, int signal)
+{
+  if (kill(pid, signal) < 0)
+    return errno;
+
+  return 0;
+}