llseek - phpMan

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  (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 posi-
       tion 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.

       EINVAL whence is invalid.

       EFAULT Problem with copying results to user space.

CONFORMING TO
       This  function is Linux-specific, and should not be used in programs intended to be
       portable.

SEE ALSO
       lseek(2)



Linux 1.2.9                       1995-06-10                         LLSEEK(2)

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