llseek

_llseek - reposition read/write file offset

#include <sys/types.h>
#include <unistd.h>
 I int _llseek(unsigned int  fd , unsigned long  offset_high ,
I             unsigned long  offset_low , loff_t * result ,
I             unsigned int  whence );

The R _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 R SEEK_SET , R SEEK_CUR , or R SEEK_END , respectively. It returns the resulting file position in the argument R result .

Upon successful completion, R _llseek () returns 0. Otherwise, a value of -1 is returned and errno is set to indicate the error.

EBADF

EFAULT

EINVAL

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)