LLSEEK(2)                                           Linux Programmer's Manual                                          LLSEEK(2)



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);

DESCRIPTION
       The  _llseek()  function  repositions  the  offset  of  the  open  file  associated  with the file descriptor fd to (off-
       set_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 3.25 of the Linux man-pages project.  A description of the project, and information about
       reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



Linux                                                      2007-06-01                                                  LLSEEK(2)