1 files changed, 93 insertions, 0 deletions
diff --git a/cpukit/libfs/src/imfs/ioman.c b/cpukit/libfs/src/imfs/ioman.c
new file mode 100644
index 0000000000..fa9918b266
--- /dev/null
+++ b/cpukit/libfs/src/imfs/ioman.c
@@ -0,0 +1,93 @@
+/*
+ *  This file emulates the old Classic RTEMS IO manager directives
+ *  which register and lookup names using the in-memory filesystem.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  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 <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <rtems.h>
+#include <rtems/libio_.h>
+#include <rtems/seterr.h>
+#include "imfs.h"
+
+/*
+ *  rtems_io_register_name
+ *
+ *  This assumes that all registered devices are character devices.
+ */
+
+rtems_status_code rtems_io_register_name(
+  const char                *device_name,
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor
+)
+{
+  int    status;
+  dev_t  dev;
+
+  dev = rtems_filesystem_make_dev_t( major, minor );
+  status = mknod( device_name, 0777 | S_IFCHR, dev );
+
+  /* this is the only error returned by the old version */
+  if ( status )
+    return RTEMS_TOO_MANY;
+
+  return RTEMS_SUCCESSFUL;
+}
+
+/*
+ *  rtems_io_lookup_name
+ *
+ *  This version is reentrant.
+ *
+ *  XXX - This is dependent upon IMFS and should not be.
+ *        Suggest adding a filesystem routine to fill in the device_info.
+ */
+
+rtems_status_code rtems_io_lookup_name(
+  const char           *name,
+  rtems_driver_name_t  *device_info
+)
+{
+  IMFS_jnode_t                      *the_jnode;
+  rtems_filesystem_location_info_t   loc;
+  int                                result;
+  rtems_filesystem_node_types_t      node_type;
+
+  result = rtems_filesystem_evaluate_path(
+      name, strlen( name ), 0x00, &loc, true );
+  the_jnode = loc.node_access;
+
+  node_type = (*loc.ops->node_type_h)( &loc );
+
+  if ( (result != 0) || node_type != RTEMS_FILESYSTEM_DEVICE ) {
+    rtems_filesystem_freenode( &loc );
+    return RTEMS_UNSATISFIED;
+  }
+
+  device_info->device_name        = (char *) name;
+  device_info->device_name_length = strlen( name );
+  device_info->major              = the_jnode->info.device.major;
+  device_info->minor              = the_jnode->info.device.minor;
+
+  rtems_filesystem_freenode( &loc );
+
+  return RTEMS_SUCCESSFUL;
+}