From owner-freebsd-questions  Wed Oct  3 13:52:57 2001
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Date: Wed, 3 Oct 2001 17:51:09 -0300 (ART)
From: Fernando Gleiser <fgleiser@cactus.fi.uba.ar>
To: Tim Singletary <tsingle@vetinsite.com>
Cc: <freebsd-questions@FreeBSD.ORG>
Subject: Re: hard link and schg flag ?
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On Wed, 3 Oct 2001, Tim Singletary wrote:

>  > if the inmutable flags afects the inode rather than the contents of the file
>  > this is a feature, since creating a new hardlink increases the link count
>
> I suspect this is correct.  But I can't find good documentation for
> this.

From /sys/ufs/ufs/ufs_vnops.c :

if (ip->i_flags & (IMMUTABLE | APPEND)) {
	error = EPERM;
	goto out1;
}

So it is a feature. Time to fill a PR for the man page.


			Fer


>
> In particular, ln fails with `Operation not permitted'.  I haven't
> looked at the source code, but I'll guess this is because link()
> failed with EPERM.  But `man 2 link' says that EPERM occurs when
> `The file named by _name1_ is a directory', and that's clearly
> not what's happening here!
>
> tim
>
>
>
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