firstc
for (cp = firstc(&tp->t_rawq, &tabc, &cc); cp;
for (cp = firstc(&tp->t_canq, &c, &cc); cp;
for (cp = firstc(&tp->t_rawq, &c, &cc); cp;
u_char *firstc(struct clist *clp, int *c, int *cc);
int firstc;
firstc = 1;
if ((!firstc && !isalnum(c)))
firstc = 0;