LLSEEK
Section: Linux Programmer's Manual (2)
Updated: 2012-07-13
Index
Return to Main Contents
NAME
_llseek - reposition read/write file offset
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
int _llseek(unsigned int fd, unsigned long offset_high,
unsigned long offset_low, loff_t *result,
unsigned int whence);
Note:
There is no glibc wrapper for this system call; see NOTES.
DESCRIPTION
The
_llseek()
function repositions the offset of the open file associated
with the file descriptor
fd
to
(offset_high<<32) | offset_low
bytes relative to the beginning of the file, the current position in the file,
or the end of the file, depending on whether
whence
is
SEEK_SET,
SEEK_CUR,
or
SEEK_END,
respectively.
It returns the resulting file position in the argument
result.
RETURN VALUE
Upon successful completion,
_llseek()
returns 0.
Otherwise, a value of -1 is returned and
errno
is set to indicate the error.
ERRORS
- EBADF
-
fd
is not an open file descriptor.
- EFAULT
-
Problem with copying results to user space.
- EINVAL
-
whence
is invalid.
CONFORMING TO
This function is Linux-specific, and should not be used in programs
intended to be portable.
NOTES
Glibc does not provide a wrapper for this system call; call it using
syscall(2).
SEE ALSO
lseek(2),
lseek64(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 02:54:49 GMT, September 18, 2014