<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 5ede134..5b6b8f9 100644 (file)
--- a/usr/src/usr.bin/window/wwtty.c
+++ b/usr/src/usr.bin/window/wwtty.c
@@ -1,41 +1,153 @@
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * 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     1.3 83/07/19";
-#endif
+static char sccsid[] = "@(#)wwtty.c    3.17 (Berkeley) %G%";
+#endif /* not lint */

 
 #include "ww.h"
 
 #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;
 {

-       if (ioctl(d, TIOCGETP, &t->ww_sgttyb) < 0)
-               return -1;
-       if (ioctl(d, TIOCGETC, &t->ww_tchars) < 0)
-               return -1;
-       if (ioctl(d, TIOCGLTC, &t->ww_ltchars) < 0)
-               return -1;
-       if (ioctl(d, TIOCLGET, &t->ww_lmode) < 0)
-               return -1;
-       if (ioctl(d, TIOCGETD, &t->ww_ldisc) < 0)
-               return -1;
-       if (ioctl(d, TIOCGPGRP, &t->ww_pgrp) < 0)
-               return -1;
+#ifdef OLD_TTY
+       if (ioctl(d, TIOCGETP, (char *)&t->ww_sgttyb) < 0)
+               goto bad;
+       if (ioctl(d, TIOCGETC, (char *)&t->ww_tchars) < 0)
+               goto bad;
+       if (ioctl(d, TIOCGLTC, (char *)&t->ww_ltchars) < 0)
+               goto bad;
+       if (ioctl(d, TIOCLGET, (char *)&t->ww_lmode) < 0)
+               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;
        return 0;

+bad:
+       wwerrno = WWE_SYS;
+       return -1;

 }
 
 }
 

+/*
+ * Set the modes of tty 'd' to 't'
+ * 'o' is the current modes.  We set the line discipline only if
+ * it changes, to avoid unnecessary flushing of typeahead.
+ */

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

-       if (ioctl(d, TIOCSETP, &t->ww_sgttyb) < 0)
-               return -1;
-       if (ioctl(d, TIOCSETC, &t->ww_tchars) < 0)
-               return -1;
-       if (ioctl(d, TIOCSLTC, &t->ww_ltchars) < 0)
+#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)
+               goto bad;
+       if (ioctl(d, TIOCSLTC, (char *)&t->ww_ltchars) < 0)
+               goto bad;
+       if (ioctl(d, TIOCLSET, (char *)&t->ww_lmode) < 0)
+               goto bad;
+       if (ioctl(d, TIOCGETD, (char *)&i) < 0)
+               goto bad;
+       if (t->ww_ldisc != i &&
+           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;
+bad:
+       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;
                return -1;

-       if (ioctl(d, TIOCLSET, &t->ww_lmode) < 0)
+       }
+       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 -1;

-       if (ioctl(d, TIOCSETD, &t->ww_ldisc) < 0)
+       }
+       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 -1;

-       if (ioctl(d, TIOCSPGRP, &t->ww_pgrp) < 0)
+       }
+       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 -1;

+       }

        return 0;
 }
        return 0;
 }