for(n = 0; n < Maxdest; n++, qp->curdest++)

if (setdestoutns(qp->curdest, n) < 0)

On 22 August 2012 09:05, erik quanstrom <quanstro@quanstro.net> wrote:

since qb->curdest is indirected, for example by setdestoutns, this must be
a valid pointer to remain safe.

only when the pointer is valid. I think cinap is right.