Section (2) llseek
_llseek — reposition read/write file offset
#include <sys/types.h> #include <unistd.h>
||unsigned int fd,|
|unsigned long offset_high,|
|unsigned long offset_low,|
|unsigned int whence
|There is no glibc wrapper for this system call; see NOTES.|
_llseek() system call
repositions the offset of the open file description
associated with the file descriptor
fd to (offset_high<<32) |
offset_low bytes relative to the beginning of the
file, the current file offset, or the end of the file,
depending on whether
SEEK_END, respectively. It returns the
resulting file position in the argument
This system call exists on various 32-bit platforms to support seeking to large file offsets.
Upon successful completion,
_llseek() returns 0. Otherwise, a value of
−1 is returned and
is set to indicate the error.
fdis not an open file descriptor.
Problem with copying results to user space.
This function is Linux-specific, and should not be used in programs intended to be portable.
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and the latest version of this page, can be found at
Copyright (C) 1995 Andries Brouwer (aebcwi.nl)
Written 10 June 1995 by Andries Brouwer <aebcwi.nl>
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Modified Thu Oct 31 15:16:23 1996 by Eric S. Raymond <esrthyrsus.com>