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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 3.22 of the Linux man-pages project.  A description of the project, and informa-
       tion about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.



Linux                             2007-06-01                         LLSEEK(2)