Re: [libvirt] [PATCH] Fix misuse of PF_UNIX

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On Wed, Jan 28, 2009 at 11:06:03AM +0100, Jim Meyering wrote:
> john.levon@xxxxxxx wrote:
> > Fix misuse of PF_UNIX
> >
> > PF_UNIX is a protocol familay, not a valid protocol, so isn't suitable
> > for the 3rd socket() argument. Solaris should be ignoring the invalid
> > protocol anyway, but this fix is correct regardless.
> >
> > Signed-off-by: John Levon <john.levon@xxxxxxx>
> >
> > diff --git a/src/xend_internal.c b/src/xend_internal.c
> > --- a/src/xend_internal.c
> > +++ b/src/xend_internal.c
> > @@ -752,7 +752,11 @@ xenDaemonOpen_unix(virConnectPtr conn, c
> >
> >      memset(&priv->addr, 0, sizeof(priv->addr));
> >      priv->addrfamily = AF_UNIX;
> > -    priv->addrprotocol = PF_UNIX;
> > +    /*
> > +     * This must be zero on Solaris at least for AF_UNIX (which should
> > +     * really be PF_UNIX, but doesn't matter).
> > +     */
> > +    priv->addrprotocol = 0;
> >      priv->addrlen = sizeof(struct sockaddr_un);
> >
> >      addr = (struct sockaddr_un *)&priv->addr;
> 
> This looks like a fine change, especially
> since the general recommendation is to specify protocol as 0.
> Considering the above and that this is a bug fix, I'd drop the
> comment altogether.

No, please don't drop the comment - the lack of such a warning comment is 
why I considered it safe to add the PF_UNIX setting in the first place


Daniel
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