1 files changed, 51 insertions, 0 deletions
diff --git a/libdiskfs/file-getcontrol.c b/libdiskfs/file-getcontrol.c
new file mode 100644
index 00000000..4f1ae23a
--- /dev/null
+++ b/libdiskfs/file-getcontrol.c
@@ -0,0 +1,51 @@
+/* libdiskfs implementation of fs.defs:file_getcontrol.c
+   Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation
+
+   This program 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.
+
+   This program 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 this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include "priv.h"
+#include "fs_S.h"
+
+/* Implement file_getcontrol as described in <hurd/fs.defs>. */
+kern_return_t
+diskfs_S_file_getcontrol (struct protid *cred,
+			  mach_port_t *control,
+			  mach_msg_type_name_t *controltype)
+{
+  int error = 0;
+  struct port_info *newpi;
+  
+  if (!cred)
+    return EOPNOTSUPP;
+  
+  if (!idvec_contains (cred->user->uids, 0))
+    error = EPERM;
+  else
+    {
+      error = ports_create_port (diskfs_control_class, diskfs_port_bucket,
+				 sizeof (struct port_info), &newpi);
+      if (! error)
+	{
+	  spin_lock (&_diskfs_control_lock);
+	  _diskfs_ncontrol_ports++;
+	  spin_unlock (&_diskfs_control_lock);
+	  *control = ports_get_right (newpi);
+	  *controltype = MACH_MSG_TYPE_MAKE_SEND;
+	  ports_port_deref (newpi);
+	}
+    }
+
+  return error;
+}