mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-29 08:11:08 +00:00
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Long-long seek operation.
|
|
Copyright (C) 1996-2013 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <sys/types.h>
|
|
|
|
#include <sysdep.h>
|
|
#include <sys/syscall.h>
|
|
|
|
/* Seek to OFFSET on FD, starting from WHENCE. */
|
|
extern loff_t __llseek (int fd, loff_t offset, int whence);
|
|
|
|
loff_t
|
|
__llseek (int fd, loff_t offset, int whence)
|
|
{
|
|
loff_t retval;
|
|
|
|
return (loff_t) (INLINE_SYSCALL (_llseek, 5, fd, (off_t) (offset >> 32),
|
|
(off_t) (offset & 0xffffffff),
|
|
&retval, whence) ?: retval);
|
|
}
|
|
weak_alias (__llseek, llseek)
|
|
strong_alias (__llseek, __libc_lseek64)
|
|
strong_alias (__llseek, __lseek64)
|
|
weak_alias (__llseek, lseek64)
|
|
|
|
/* llseek doesn't have a prototype. Since the second parameter is a
|
|
64bit type, this results in wrong behaviour if no prototype is
|
|
provided. */
|
|
link_warning (llseek, "\
|
|
the `llseek' function may be dangerous; use `lseek64' instead.")
|