<sys/file.h> => <sys/types.h> + <fcntl.h>

[unix-history] / usr / src / usr.bin / window / wwtty.c

diff --git a/usr/src/usr.bin/window/wwtty.c b/usr/src/usr.bin/window/wwtty.c
index c71789c..5b6b8f9 100644 (file)
--- a/usr/src/usr.bin/window/wwtty.c
+++ b/usr/src/usr.bin/window/wwtty.c
@@ -2,29 +2,26 @@
  * Copyright (c) 1983 Regents of the University of California.
  * All rights reserved.
  *
  * Copyright (c) 1983 Regents of the University of California.
  * All rights reserved.
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * This code is derived from software contributed to Berkeley by
+ * Edward Wang at The University of California, Berkeley.
+ *
+ * %sccs.include.redist.c%

  */
 
 #ifndef lint
  */
 
 #ifndef lint

-static char sccsid[] = "@(#)wwtty.c    3.12 (Berkeley) %G%";
+static char sccsid[] = "@(#)wwtty.c    3.17 (Berkeley) %G%";

 #endif /* not lint */
 
 #include "ww.h"
 #include <fcntl.h>
 #endif /* not lint */
 
 #include "ww.h"
 #include <fcntl.h>

+#if !defined(OLD_TTY) && !defined(TIOCGWINSZ)
+#include <sys/ioctl.h>
+#endif

 
 wwgettty(d, t)
 register struct ww_tty *t;
 {
 
 wwgettty(d, t)
 register struct ww_tty *t;
 {

+#ifdef OLD_TTY

        if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0)
                goto bad;
        if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0)
        if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0)
                goto bad;
        if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0)


@@ -35,6 +32,10 @@ register struct ww_tty *t;
                goto bad;
        if (ioctl(d, TIOCGETD, (char *)&t->ww_ldisc) < 0)
                goto bad;
                goto bad;
        if (ioctl(d, TIOCGETD, (char *)&t->ww_ldisc) < 0)
                goto bad;

+#else
+       if (tcgetattr(d, &t->ww_termios) < 0)
+               goto bad;
+#endif

        if ((t->ww_fflags = fcntl(d, F_GETFL, 0)) < 0)
                goto bad;
        return 0;
        if ((t->ww_fflags = fcntl(d, F_GETFL, 0)) < 0)
                goto bad;
        return 0;


@@ -48,9 +49,15 @@ bad:
  * 'o' is the current modes.  We set the line discipline only if
  * it changes, to avoid unnecessary flushing of typeahead.
  */
  * 'o' is the current modes.  We set the line discipline only if
  * it changes, to avoid unnecessary flushing of typeahead.
  */

-wwsettty(d, t, o)
-register struct ww_tty *t, *o;
+wwsettty(d, t)
+register struct ww_tty *t;

 {
 {

+#ifdef OLD_TTY
+       int i;
+
+       /* XXX, for buggy tty drivers that don't wait for output to drain */
+       while (ioctl(d, TIOCOUTQ, &i) >= 0 && i > 0)
+               usleep(100000);

        if (ioctl(d, TIOCSETN, (char *)&t->ww_sgttyb) < 0)
                goto bad;
        if (ioctl(d, TIOCSETC, (char *)&t->ww_tchars) < 0)
        if (ioctl(d, TIOCSETN, (char *)&t->ww_sgttyb) < 0)
                goto bad;
        if (ioctl(d, TIOCSETC, (char *)&t->ww_tchars) < 0)


@@ -59,9 +66,19 @@ register struct ww_tty *t, *o;
                goto bad;
        if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0)
                goto bad;
                goto bad;
        if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0)
                goto bad;

-       if ((o == 0 || t->ww_ldisc != o->ww_ldisc) &&
+       if (ioctl(d, TIOCGETD, (char *)&i) < 0)
+               goto bad;
+       if (t->ww_ldisc != i &&

            ioctl(d, TIOCSETD, (char *)&t->ww_ldisc) < 0)
                goto bad;
            ioctl(d, TIOCSETD, (char *)&t->ww_ldisc) < 0)
                goto bad;

+#else
+#ifdef sun
+       /* XXX, for buggy tty drivers that don't wait for output to drain */
+       (void) tcdrain(d);
+#endif
+       if (tcsetattr(d, TCSADRAIN, &t->ww_termios) < 0)
+               goto bad;
+#endif

        if (fcntl(d, F_SETFL, t->ww_fflags) < 0)
                goto bad;
        return 0;
        if (fcntl(d, F_SETFL, t->ww_fflags) < 0)
                goto bad;
        return 0;


@@ -69,3 +86,68 @@ bad:
        wwerrno = WWE_SYS;
        return -1;
 }
        wwerrno = WWE_SYS;
        return -1;
 }

+
+/*
+ * The ttysize and stop-start routines must also work
+ * on the control side of pseudoterminals.
+ */
+
+wwgetttysize(d, r, c)
+       int *r, *c;
+{
+       struct winsize winsize;
+
+       if (ioctl(d, TIOCGWINSZ, (char *)&winsize) < 0) {
+               wwerrno = WWE_SYS;
+               return -1;
+       }
+       if (winsize.ws_row != 0)
+               *r = winsize.ws_row;
+       if (winsize.ws_col != 0)
+               *c = winsize.ws_col;
+       return 0;
+}
+
+wwsetttysize(d, r, c)
+{
+       struct winsize winsize;
+
+       winsize.ws_row = r;
+       winsize.ws_col = c;
+       winsize.ws_xpixel = winsize.ws_ypixel = 0;
+       if (ioctl(d, TIOCSWINSZ, (char *)&winsize) < 0) {
+               wwerrno = WWE_SYS;
+               return -1;
+       }
+       return 0;
+}
+
+wwstoptty(d)
+{
+#if !defined(OLD_TTY) && defined(TCOOFF)
+       /* not guaranteed to work on the pty side */
+       if (tcflow(d, TCOOFF) < 0)
+#else
+       if (ioctl(d, TIOCSTOP, (char *)0) < 0)
+#endif
+       {
+               wwerrno = WWE_SYS;
+               return -1;
+       }
+       return 0;
+}
+
+wwstarttty(d)
+{
+#if !defined(OLD_TTY) && defined(TCOON)
+       /* not guaranteed to work on the pty side */
+       if (tcflow(d, TCOON) < 0)
+#else
+       if (ioctl(d, TIOCSTART, (char *)0) < 0)
+#endif
+       {
+               wwerrno = WWE_SYS;
+               return -1;
+       }
+       return 0;
+}