1 files changed, 51 insertions, 0 deletions
diff --git a/librols/stdio/fdup.c b/librols/stdio/fdup.c
new file mode 100644
index 0000000..cdb180d
--- /dev/null
+++ b/librols/stdio/fdup.c
@@ -0,0 +1,51 @@
+/*
+ * This file has been modified for the cdrkit suite.
+ *
+ * The behaviour and appearence of the program code below can differ to a major
+ * extent from the version distributed by the original author(s).
+ *
+ * For details, see Changelog file distributed with the cdrkit package. If you
+ * received this file from another source then ask the distributing person for
+ * a log of modifications.
+ *
+ */
+
+/* @(#)fdup.c	1.14 04/08/08 Copyright 1986, 1995-2003 J. Schilling */
+/*
+ *	Copyright (c) 1986, 1995-2003 J. Schilling
+ */
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; see the file COPYING.  If not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "schilyio.h"
+
+/*
+ * Note that because of a definition in schilyio.h we are using fseeko()/ftello()
+ * instead of fseek()/ftell() if available.
+ */
+
+EXPORT FILE *
+fdup(f)
+	register FILE  *f;
+{
+	int  newfd;
+
+	down(f);
+	if ((newfd = dup(fileno(f))) < 0)
+		return ((FILE *) NULL);
+
+	lseek(newfd, ftell(f), SEEK_SET);
+	return (_fcons((FILE *)0, newfd, (FI_READ | FI_WRITE | FI_CLOSE)));
+}