1 files changed, 57 insertions, 0 deletions
diff --git a/cpukit/libfs/src/imfs/deviceerrno.c b/cpukit/libfs/src/imfs/deviceerrno.c
new file mode 100644
index 0000000000..9a3251f7c5
--- /dev/null
+++ b/cpukit/libfs/src/imfs/deviceerrno.c
@@ -0,0 +1,57 @@
+/*
+ *  IMFS Device Node Handlers
+ *
+ *  This file contains the set of handlers used to map operations on
+ *  IMFS device nodes onto calls to the RTEMS Classic API IO Manager.
+ *
+ *  COPYRIGHT (c) 1989-2008.
+ *  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 <rtems.h>
+#include <rtems/libio.h>
+#include <rtems/assoc.h>                /* assoc.h not included by rtems.h */
+#include <errno.h>
+
+/*
+ * Convert RTEMS status to a UNIX errno
+ */
+
+const rtems_assoc_t errno_assoc[] = {
+    { "OK",                 RTEMS_SUCCESSFUL,                0 },
+    { "BUSY",               RTEMS_RESOURCE_IN_USE,           EBUSY },
+    { "INVALID NAME",       RTEMS_INVALID_NAME,              EINVAL },
+    { "NOT IMPLEMENTED",    RTEMS_NOT_IMPLEMENTED,           ENOSYS },
+    { "TIMEOUT",            RTEMS_TIMEOUT,                   ETIMEDOUT },
+    { "NO MEMORY",          RTEMS_NO_MEMORY,                 ENOMEM },
+    { "NO DEVICE",          RTEMS_UNSATISFIED,               ENODEV },
+    { "INVALID NUMBER",     RTEMS_INVALID_NUMBER,            EBADF},
+    { "NOT RESOURCE OWNER", RTEMS_NOT_OWNER_OF_RESOURCE,     EPERM},
+    { "IO ERROR",           RTEMS_IO_ERROR,                  EIO},
+    { 0, 0, 0 },
+};
+
+int
+rtems_deviceio_errno(rtems_status_code code)
+{
+    int rc;
+
+    if ((rc = rtems_assoc_remote_by_local(errno_assoc, (uint32_t  ) code)))
+    {
+        errno = rc;
+        return -1;
+    }
+    return -1;
+}
+
+