]>
Commit | Line | Data |
---|---|---|
3447be7b RM |
1 | /* Copyright (C) 1993, 1995-2001, 2002, 2003, 2004 |
2 | Free Software Foundation, Inc. | |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
dfd2257a | 4 | |
41bdb6e2 AJ |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
dfd2257a | 9 | |
41bdb6e2 AJ |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
dfd2257a | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 13 | Lesser General Public License for more details. |
dfd2257a | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. | |
dfd2257a | 19 | |
41bdb6e2 AJ |
20 | As a special exception, if you link the code in this file with |
21 | files compiled with a GNU compiler to produce an executable, | |
22 | that does not cause the resulting executable to be covered by | |
23 | the GNU Lesser General Public License. This exception does not | |
24 | however invalidate any other reasons why the executable file | |
25 | might be covered by the GNU Lesser General Public License. | |
26 | This exception applies to code released by its copyright holders | |
27 | in files containing the exception. */ | |
dfd2257a UD |
28 | |
29 | #include <stdio.h> | |
ef52edfc | 30 | #include <stdlib.h> |
dfd2257a UD |
31 | #include <libioP.h> |
32 | #include <errno.h> | |
33 | ||
34 | ||
35 | off64_t | |
36 | ftello64 (fp) | |
37 | _IO_FILE *fp; | |
38 | { | |
39 | #ifdef _G_LSEEK64 | |
d64b6ad0 | 40 | _IO_off64_t pos; |
dfd2257a | 41 | CHECK_FILE (fp, -1L); |
0261d33f | 42 | _IO_acquire_lock (fp); |
52a16e58 | 43 | pos = _IO_seekoff_unlocked (fp, 0, _IO_seek_cur, 0); |
3447be7b | 44 | if (_IO_in_backup (fp) && pos != _IO_pos_BAD) |
d64b6ad0 UD |
45 | { |
46 | if (fp->_mode <= 0) | |
47 | pos -= fp->_IO_save_end - fp->_IO_save_base; | |
d64b6ad0 | 48 | } |
0261d33f | 49 | _IO_release_lock (fp); |
dfd2257a UD |
50 | if (pos == _IO_pos_BAD) |
51 | { | |
52 | #ifdef EIO | |
53 | if (errno == 0) | |
54 | __set_errno (EIO); | |
55 | #endif | |
56 | return -1L; | |
57 | } | |
d64b6ad0 | 58 | return pos; |
dfd2257a UD |
59 | #else |
60 | __set_errno (ENOSYS); | |
61 | return -1; | |
62 | #endif | |
63 | } |