Copyright (C) 1995 Andries Brouwer (firstname.lastname@example.org) Written 10 June 1995 by Andries Brouwer <email@example.com> %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a ...
NAME_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);
Note: There is no glibc wrapper for this system call; see NOTES.
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.
This system call exists on various 32-bit platforms to support seeking to large file offsets.
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.