1 /* An ftello() function that works around platform bugs.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License along
15 with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
36 /* mingw gives bogus answers rather than failure on non-seekable files. */
37 if (lseek (fileno (fp), 0, SEEK_CUR) == -1)
41 #if defined __SL64 && defined __SCLE /* Cygwin */
42 if ((fp->_flags & __SL64) == 0)
44 /* Cygwin 1.5.0 through 1.5.24 failed to open stdin in 64-bit
45 mode; but has an ftello that requires 64-bit mode. */
46 FILE *tmp = fopen ("/dev/null", "r");
50 fp->_seek64 = tmp->_seek64;