1 files changed, 73 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..396df7619d
--- /dev/null
+++ b/cpukit/libfs/src/imfs/deviceerrno.c
@@ -0,0 +1,73 @@
+/*
+ *  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 <errno.h>
+
+#include <rtems.h>
+#include <rtems/libio.h>
+
+static const int status_code_to_errno [RTEMS_STATUS_CODES_LAST + 1] = {
+  [RTEMS_SUCCESSFUL]               = 0,
+  [RTEMS_TASK_EXITTED]             = EIO,
+  [RTEMS_MP_NOT_CONFIGURED]        = EIO,
+  [RTEMS_INVALID_NAME]             = EINVAL,
+  [RTEMS_INVALID_ID]               = EIO,
+  [RTEMS_TOO_MANY]                 = EIO,
+  [RTEMS_TIMEOUT]                  = ETIMEDOUT,
+  [RTEMS_OBJECT_WAS_DELETED]       = EIO,
+  [RTEMS_INVALID_SIZE]             = EIO,
+  [RTEMS_INVALID_ADDRESS]          = EIO,
+  [RTEMS_INVALID_NUMBER]           = EBADF,
+  [RTEMS_NOT_DEFINED]              = EIO,
+  [RTEMS_RESOURCE_IN_USE]          = EBUSY,
+  [RTEMS_UNSATISFIED]              = ENODEV,
+  [RTEMS_INCORRECT_STATE]          = EIO,
+  [RTEMS_ALREADY_SUSPENDED]        = EIO,
+  [RTEMS_ILLEGAL_ON_SELF]          = EIO,
+  [RTEMS_ILLEGAL_ON_REMOTE_OBJECT] = EIO,
+  [RTEMS_CALLED_FROM_ISR]          = EIO,
+  [RTEMS_INVALID_PRIORITY]         = EIO,
+  [RTEMS_INVALID_CLOCK]            = EINVAL,
+  [RTEMS_INVALID_NODE]             = EINVAL,
+  [RTEMS_NOT_CONFIGURED]           = ENOSYS,
+  [RTEMS_NOT_OWNER_OF_RESOURCE]    = EPERM,
+  [RTEMS_NOT_IMPLEMENTED]          = ENOSYS,
+  [RTEMS_INTERNAL_ERROR]           = EIO,
+  [RTEMS_NO_MEMORY]                = ENOMEM,
+  [RTEMS_IO_ERROR]                 = EIO,
+  [RTEMS_PROXY_BLOCKING]           = EIO
+};
+
+int rtems_deviceio_errno(rtems_status_code sc)
+{
+  if (sc == RTEMS_SUCCESSFUL) {
+    return 0;
+  } else {
+    int eno = EINVAL;
+
+    if ((unsigned) sc <= RTEMS_STATUS_CODES_LAST) {
+      eno = status_code_to_errno [sc];
+    }
+
+    errno = eno;
+
+    return -1;
+  }
+}