|LLSEEK(2)||Linux Programmer's Manual||LLSEEK(2)|
NAME_llseek - reposition read/write file offset
int _llseek(unsigned int fd , unsigned long offset_high ,
unsigned long offset_low , loff_t * result ,
unsigned int whence );
DESCRIPTIONThe _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.
RETURN VALUEUpon successful completion, _llseek() returns 0. Otherwise, a value of -1 is returned and errno is set to indicate the error.
- fd is not an open file descriptor.
- Problem with copying results to user space.
- whence is invalid.
CONFORMING TOThis function is Linux-specific, and should not be used in programs intended to be portable.
NOTESGlibc does not provide a wrapper for this system call; call it using syscall(2).
SEE ALSOlseek(2), lseek64(3)
COLOPHONThis page is part of release 3.53 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/.