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You are here: manpages





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)  

COLOPHON

This page is part of release 3.81 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
CONFORMING TO
NOTES
SEE ALSO
COLOPHON


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