1 files changed, 85 insertions, 0 deletions
diff --git a/cpukit/libfs/src/devfs/devfs_eval.c b/cpukit/libfs/src/devfs/devfs_eval.c
new file mode 100644
index 0000000000..a3169fb3fa
--- /dev/null
+++ b/cpukit/libfs/src/devfs/devfs_eval.c
@@ -0,0 +1,85 @@
+/*
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/seterr.h>
+#include <fcntl.h>
+#include <assert.h>
+#include "devfs.h"
+
+/**
+ *  The following defines the device-only filesystem operating
+ *  handlers.
+ */
+
+extern rtems_filesystem_operations_table devFS_ops;
+
+/**
+ *  The following defines the device-only filesystem operating
+ *  handlers.
+ */
+
+extern rtems_filesystem_file_handlers_r  devFS_file_handlers;
+
+int devFS_evaluate_path(
+  const char                        *pathname,
+  size_t                             pathnamelen,
+  int                                flags,
+  rtems_filesystem_location_info_t  *pathloc
+)
+{
+  int                   i;
+  rtems_device_name_t  *device_name_table;
+
+  /* see if 'flags' is valid */
+  if ( !rtems_libio_is_valid_perms( flags ) )
+    rtems_set_errno_and_return_minus_one( EPERM );
+
+  /* get the device name table */
+  device_name_table = (rtems_device_name_t *)pathloc->node_access;
+  if (!device_name_table)
+    rtems_set_errno_and_return_minus_one( EFAULT );
+
+  for (i = 0; i < rtems_device_table_size; i++) {
+    if (!device_name_table[i].device_name)
+      continue;
+
+    if (strncmp(pathname, device_name_table[i].device_name, pathnamelen) != 0)
+      continue;
+
+    if (device_name_table[i].device_name[pathnamelen] != '\0')
+      continue;
+
+    /* find the device, set proper values */
+    pathloc->node_access = (void *)&device_name_table[i];
+    pathloc->handlers = &devFS_file_handlers;
+    pathloc->ops = &devFS_ops;
+    pathloc->mt_entry = rtems_filesystem_root.mt_entry;
+    return 0;
+  }
+
+  /* no such file or directory */
+  rtems_set_errno_and_return_minus_one( ENOENT );
+}
+
+
+
+int devFS_evaluate_for_make(
+   const char                         *path,
+   rtems_filesystem_location_info_t   *pathloc,
+   const char                        **name
+)
+{
+    /* we do nothing, just set name to path */
+   *name = path;
+    return 0;
+}
+