truss? Re: strace equivalent?

[Chuck Yerkes <chuck+obsd_(_at_)_2004_(_dot_)_snew_(_dot_)_com>]

Quoting Matt Provost (mprovost_(_at_)_termcap_(_dot_)_net):
> On Aug 18 05:21 PM, Leland V. Lammert wrote:
> > What is the OBSD equivalent to strace (show all libraries and calls made by 
> > an application)?

> ktrace

Someone (mark espie perhaps?) long around, around the 2.8 time
frame, offered that a truss type of command wouldn't be hard for
him to whip up.

The advantage of that being the "seeing live" aspect of the command
where ktrace can make a rapidly growing file in some cases (and
I've had guys not turn off or know HOW to turn off a ktrace - their
fault, but my problem).

I wonder how feasable it would be at this point?

The common usage is "truss named -f", for example.