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LLSEEK(2) Linux Programmer's Manual LLSEEK(2)
_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.
EBADF fd is not an open file descriptor.
EFAULT Problem with copying results to user space.
EINVAL whence is invalid.
This function is Linux-specific, and should not be used in programs intended
to be portable.
Glibc does not provide a wrapper for this system call; call it using
syscall(2).
lseek(2), lseek64(3)
This page is part of release 3.32 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)
HTML rendering created 2010-12-03 by Michael Kerrisk, author of The Linux Programming Interface