_llseek — reposition read/write file offset
#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); |
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.
Upon successful completion, _llseek() returns 0. Otherwise, a value of
−1 is returned and errno
is set to indicate the error.
fd is not an
open file descriptor.
Problem with copying results to user space.
whence is
invalid.
This function is Linux-specific, and should not be used in programs intended to be portable.
This page is part of release 3.33 of the Linux man-pages project. A
description of the project, and information about reporting
bugs, can be found at http://man7.org/linux/man-pages/.
|
Copyright (C) 1995 Andries Brouwer (aebcwi.nl) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. Written 10 June 1995 by Andries Brouwer <aebcwi.nl> Modified Thu Oct 31 15:16:23 1996 by Eric S. Raymond <esrthyrsus.com> |