int
wsemul_sun_output_control(struct wsemul_sun_emuldata *edp,
struct wsemul_inputstate *instate)
{
int oargs;
int rc;
switch (instate->inchar) {
case '0': case '1': case '2': case '3': case '4': /* argument digit */
case '5': case '6': case '7': case '8': case '9':
/*
* If we receive more arguments than we are expecting,
* discard the earliest arguments.
*/
if (edp->nargs > SUN_EMUL_NARGS - 1) {
bcopy(edp->args + 1, edp->args,
(SUN_EMUL_NARGS - 1) * sizeof(edp->args[0]));
edp->args[edp->nargs = SUN_EMUL_NARGS - 1] = 0;
}
edp->args[edp->nargs] = (edp->args[edp->nargs] * 10) +
(instate->inchar - '0');
break;
case ';': /* argument terminator */
edp->nargs++;
break;
default: /* end of escape sequence */
oargs = edp->nargs++;
if (edp->nargs > SUN_EMUL_NARGS)
edp->nargs = SUN_EMUL_NARGS;
rc = wsemul_sun_control(edp, instate);
if (rc != 0) {
/* undo nargs progress */
edp->nargs = oargs;
return rc;
}
edp->state = SUN_EMUL_STATE_NORMAL;
break;
}
return 0;
}
u_int
wsemul_sun_output_control(struct wsemul_sun_emuldata *edp, u_char c)
{
u_int newstate = SUN_EMUL_STATE_CONTROL;
switch (c) {
case '0':
case '1':
case '2':
case '3':
case '4': /* argument digit */
case '5':
case '6':
case '7':
case '8':
case '9':
/*
* If we receive more arguments than we are expecting,
* discard the earliest arguments.
*/
if (edp->nargs > SUN_EMUL_NARGS - 1) {
bcopy(edp->args + 1, edp->args,
(SUN_EMUL_NARGS - 1) * sizeof(edp->args[0]));
edp->args[edp->nargs = SUN_EMUL_NARGS - 1] = 0;
}
edp->args[edp->nargs] = (edp->args[edp->nargs] * 10) +
(c - '0');
break;
case ';': /* argument terminator */
edp->nargs++;
break;
default: /* end of escape sequence */
edp->nargs++;
if (edp->nargs > SUN_EMUL_NARGS)
edp->nargs = SUN_EMUL_NARGS;
wsemul_sun_control(edp, c);
newstate = SUN_EMUL_STATE_NORMAL;
break;
}
return (newstate);
}
