Re: Comments on draft-ietf-secsh-filexfer-05.txt

[Damien Miller <djm%mindrot.org@localhost>]

Joseph Galbraith wrote:

> If no one else has any thoughts or objections to this,
> I will add it to the draft as follows:
> 
> New flag to open command:
> 
>      SSH_FXF_NOFOLLOW                  = 0x00000200
> 
> SSH_FXF_NOFOLLOW
>    If the final component of the path is a symlink, the link
>    file itself should be opened instead of the the target.
> 
> What should the behavior be if a symlink file is opened and
> then read or written to?

I think that the open() should fail when NOFOLLOW is set and the target
is a symlink. This is what the open(2) flag in Linux/BSD does, returning
errno == ELOOP.

-d