inskip
int inskip(FILE *, int, int);
if (inskip(inf, pgnm, lines))
if (inskip(inf, pgnm, lines))
if (inskip(inf, pgnm, lines))
if (pgnm && (inskip(fbuf[j], pgnm, lines)))
int af, inskip, in6skip, s4 = -1, s6 = -1, *s;
inskip = in6skip = how == IFACE_CLEAR_ALL ? 0 : 1;
if (inskip) {
inskip = 0;