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-rw-r--r--libio/iofsetpos.c46
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diff --git a/libio/iofsetpos.c b/libio/iofsetpos.c
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+/*
+Copyright (C) 1993, 1995 Free Software Foundation
+
+This file is part of the GNU IO Library.  This library 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 2, or (at your option)
+any later version.
+
+This library 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 library; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+As a special exception, if you link this library with files
+compiled with a GNU compiler to produce an executable, this does not cause
+the resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why
+the executable file might be covered by the GNU General Public License. */
+
+#include <libioP.h>
+#include <errno.h>
+
+int
+_IO_fsetpos (fp, posp)
+     _IO_FILE* fp;
+     const _IO_fpos_t *posp;
+{
+  CHECK_FILE (fp, EOF);
+  if (_IO_seekpos (fp, *posp, _IOS_INPUT|_IOS_OUTPUT) == _IO_pos_BAD)
+    {
+      /*ANSI explicily requires setting errno to a positive value on failure.*/
+#ifdef EIO
+      if (errno == 0)
+	errno = EIO;
+#endif
+      return EOF;
+    }
+  return 0;
+}
+
+weak_alias (_IO_fsetpos, fsetpos)