good catch, committed with that change, thanks

On Wed, Feb 03, 2010 at 03:38:02PM -0800, Micah Cowan wrote:
> It looks right to me; except that you may want to move the xfree(label)
> back down where it was before (with a NULL check on label), as otherwise
> it'll leak memory if some silly user specifies both -S _and_ -L.
> 
> -mjc
> 
> Nicholas Marriott wrote:
> > How about this instead? I think it should have the same effect.
> > 
> > Index: tmux.c
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/tmux/tmux.c,v
> > retrieving revision 1.66
> > diff -u -p -r1.66 tmux.c
> > --- tmux.c  3 Jan 2010 12:51:05 -0000       1.66
> > +++ tmux.c  3 Feb 2010 21:55:27 -0000
> > @@ -442,13 +442,29 @@ main(int argc, char **argv)
> >             }
> >     }
> >  
> > -   if (label == NULL)
> > -           label = xstrdup("default");
> > -   if (path == NULL && (path = makesockpath(label)) == NULL) {
> > -           log_warn("can't create socket");
> > -           exit(1);
> > +   /*
> > +    * Figure out the socket path. If specified on the command-line with
> > +    * -S or -L, use it, otherwise try $TMUX or assume -L default.
> > +    */
> > +   if (path == NULL) {
> > +           /* No -L. Try $TMUX, or default. */
> > +           if (label == NULL) {
> > +                   if ((path = getenv("TMUX")) != NULL) {
> > +                           path = xstrdup(path);
> > +                           path[strcspn(path, ",")] = '\0';
> > +                   } else
> > +                           label = xstrdup("default");
> > +           }
> > +
> > +           /* -L or default set. */
> > +           if (label != NULL) {
> > +                   if ((path = makesockpath(label)) == NULL) {
> > +                           log_warn("can't create socket");
> > +                           exit(1);
> > +                   }
> > +                   xfree(label);
> > +           }
> >     }
> > -   xfree(label);
> >  
> >     if (shellcmd != NULL) {
> >             msg = MSG_SHELL;
> > 
> > 
> > On Wed, Feb 03, 2010 at 08:29:00AM -0800, Micah Cowan wrote:
> >> Understood. I wasn't sure you would; I just dislike duplicating the same
> >>
> >> if ((path = makesockpath(...)) == NULL) {
> >>     give_an_error_msg();
> >>     exit(1);
> >> }
> >>
> >> twice in a row (once in one branch, and again in a branch of an outer
> >> if, IIRC - wherever the xmakesockpath calls are now). And avoiding the
> >> double with either an extra flag var (which I know you're not crazy
> >> about) or a goto looked even uglier to me. Maybe you'll find a solution
> >> you like better.
> >>
> >> -mjc
> >>
> >> Nicholas Marriott wrote:
> >>> Nice idea, will have a better look tonight but I'm not sure I like
> >>> the idea of makesockpath calling exit().
> 

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