1 files changed, 45 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/fsync.c b/c/src/exec/libcsupport/src/fsync.c
new file mode 100644
index 0000000000..a5ed1e99e7
--- /dev/null
+++ b/c/src/exec/libcsupport/src/fsync.c
@@ -0,0 +1,45 @@
+/*
+ *  fsync() - POSIX 1003.1b 6.6.1 - Synchronize the State of a File
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <unistd.h>
+
+#include "libio_.h"
+
+int fsync(
+  int     fd
+)
+{
+  rtems_libio_t *iop;
+
+  /*
+   *  If this file descriptor is mapped to an external set of handlers,
+   *  then pass the request on to them.
+   */
+
+  if ( rtems_file_descriptor_type( fd ) )
+    set_errno_and_return_minus_one( EBADF );
+
+  /*
+   *  Now process the fsync().
+   */
+
+  iop = rtems_libio_iop( fd );
+  rtems_libio_check_fd( fd );
+  rtems_libio_check_permissions( iop, LIBIO_FLAGS_WRITE );
+
+  if ( !iop->handlers->fsync )
+    set_errno_and_return_minus_one( ENOTSUP );
+
+  return (*iop->handlers->fsync)( iop );
+}