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+/* An ftell() function that works around platform bugs.
+ Copyright (C) 2007-2011 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ 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. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+/* Specification. */
+#include <stdio.h>
+
+#include <errno.h>
+#include <limits.h>
+
+long
+ftell (FILE *fp)
+{
+ /* Use the replacement ftello function with all its workarounds. */
+ off_t offset = ftello (fp);
+ if (LONG_MIN <= offset && offset <= LONG_MAX)
+ return /* (long) */ offset;
+ else
+ {
+ errno = EOVERFLOW;
+ return -1;
+ }
+}