1 files changed, 26 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/dup.c b/cpukit/libcsupport/src/dup.c
new file mode 100644
index 0000000000..684d72d92f
--- /dev/null
+++ b/cpukit/libcsupport/src/dup.c
@@ -0,0 +1,26 @@
+/*
+ *  dup() - POSIX 1003.1b 6.2.1 Duplicate an Open File Descriptor
+ *
+ *  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 <unistd.h>
+#include <fcntl.h>
+
+int dup(
+  int fildes
+)
+{
+  return fcntl( fildes, F_DUPFD, 0 );
+}