Subject: Re: hexdumping large sparce files
From: David Laight <firstname.lastname@example.org>
Date: 01/27/2003 11:21:30
> You do that by never writing to the hole, but lseek()ing to the next part
> you want to write.
I'm sure there is also a way of making a hole in an existing file.
> Hm, which makes me think, that maybe we want SEEK_HOLE, which will be
> equivalent to SEEK_CUR if the filesystem doesn't know about holes, and
> relative to the end of the next hole otherwise.
That isn't the right place, seek is (probably) handled well above
the VOP layer. A fcntl() or ioctl() would be more appropriate.
David Laight: email@example.com