Computer Science
LLSEEK(2) Linux Programmer's Manual LLSEEK(2)
NAME
_llseek - reposition read/write file offset
SYNOPSIS
#include <unistd.h>
#include <linux/unistd.h>
_syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
loff_t *, res, uint, wh);
int _llseek(unsigned int fd, unsigned long offset_high,
unsigned long offset_low, loff_t * result, unsigned int
whence);
DESCRIPTION
The _llseek function repositions the offset of the file
descriptor fd to (offset_high<<32) | offset_low bytes rel-
ative 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 VALUES
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.
EINVAL whence is invalid.
CONFORMING TO
This function is Linux-specific, and should not be used in
programs intended to be portable.
BUGS
The ext2 filesystem does not support files with a size of
2GB or more.
SEE ALSO
lseek(2)
Linux 1.2.9 10 June 1995 1
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