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Annotation of 43BSD/ucb/window/wwtty.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char sccsid[] = "@(#)wwtty.c    3.9 4/24/85";
        !             3: #endif
        !             4: 
        !             5: /*
        !             6:  * Copyright (c) 1983 Regents of the University of California,
        !             7:  * All rights reserved.  Redistribution permitted subject to
        !             8:  * the terms of the Berkeley Software License Agreement.
        !             9:  */
        !            10: 
        !            11: #include "ww.h"
        !            12: #include <fcntl.h>
        !            13: 
        !            14: wwgettty(d, t)
        !            15: register struct ww_tty *t;
        !            16: {
        !            17:        if (ioctl(d, (int)TIOCGETP, (char *)&t->ww_sgttyb) < 0)
        !            18:                goto bad;
        !            19:        if (ioctl(d, (int)TIOCGETC, (char *)&t->ww_tchars) < 0)
        !            20:                goto bad;
        !            21:        if (ioctl(d, (int)TIOCGLTC, (char *)&t->ww_ltchars) < 0)
        !            22:                goto bad;
        !            23:        if (ioctl(d, (int)TIOCLGET, (char *)&t->ww_lmode) < 0)
        !            24:                goto bad;
        !            25:        if (ioctl(d, (int)TIOCGETD, (char *)&t->ww_ldisc) < 0)
        !            26:                goto bad;
        !            27:        if ((t->ww_fflags = fcntl(d, F_GETFL, 0)) < 0)
        !            28:                goto bad;
        !            29:        return 0;
        !            30: bad:
        !            31:        wwerrno = WWE_SYS;
        !            32:        return -1;
        !            33: }
        !            34: 
        !            35: /*
        !            36:  * Set the modes of tty 'd' to 't'
        !            37:  * 'o' is the current modes.  We set the line discipline only if
        !            38:  * it changes, to avoid unnecessary flushing of typeahead.
        !            39:  */
        !            40: wwsettty(d, t, o)
        !            41: register struct ww_tty *t, *o;
        !            42: {
        !            43:        if (ioctl(d, (int)TIOCSETN, (char *)&t->ww_sgttyb) < 0)
        !            44:                goto bad;
        !            45:        if (ioctl(d, (int)TIOCSETC, (char *)&t->ww_tchars) < 0)
        !            46:                goto bad;
        !            47:        if (ioctl(d, (int)TIOCSLTC, (char *)&t->ww_ltchars) < 0)
        !            48:                goto bad;
        !            49:        if (ioctl(d, (int)TIOCLSET, (char *)&t->ww_lmode) < 0)
        !            50:                goto bad;
        !            51:        if ((o == 0 || t->ww_ldisc != o->ww_ldisc) &&
        !            52:            ioctl(d, (int)TIOCSETD, (char *)&t->ww_ldisc) < 0)
        !            53:                goto bad;
        !            54:        if (fcntl(d, F_SETFL, t->ww_fflags) < 0)
        !            55:                goto bad;
        !            56:        return 0;
        !            57: bad:
        !            58:        wwerrno = WWE_SYS;
        !            59:        return -1;
        !            60: }

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