opn
static FILE *opn(char *);
infile = opn(argv[optind++]);
infile = opn(argv[optind++]);
infile = *++filesp = opn(fname);
infile = *filesp = opn(fname);
int opn;
opn = numtab[PN].val;
} else if (opn == pto) {
opn = -1;
int opn;
opn = ddi_get32(dnetp->io_handle,
opn & ~(START_RECEIVE));
opn = ddi_get32(dnetp->io_handle,
opn | START_RECEIVE);