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1 | /* Copyright (C) 2011 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. | |
4 | ||
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. | |
9 | ||
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 | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
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. */ | |
19 | ||
20 | #include <errno.h> | |
21 | #include <unistd.h> | |
22 | #include <sys/types.h> | |
23 | ||
24 | #include <sysdep.h> | |
25 | #include <sys/syscall.h> | |
26 | ||
27 | #include "overflow.h" | |
28 | ||
29 | off_t | |
30 | __lseek (int fd, off_t offset, int whence) | |
31 | { | |
32 | loff_t res; | |
33 | int rc = INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 31), | |
34 | (off_t) offset, &res, whence); | |
35 | return rc ?: lseek_overflow (res); | |
36 | } | |
37 | libc_hidden_def (__lseek) | |
38 | weak_alias (__lseek, lseek) | |
39 | strong_alias (__lseek, __libc_lseek) |