The patch titled
tty: enable the echoing of ^C in the N_TTY discipline
has been added to the -mm tree. Its filename is
tty-enable-the-echoing-of-c-in-the-n_tty-discipline.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: tty: enable the echoing of ^C in the N_TTY discipline
From: Joe Peterson <joe@xxxxxxxxxxx>
Turn on INTR/QUIT/SUSP echoing in the N_TTY line discipline (e.g. ctrl-C
will appear as "^C" if stty echoctl is set and ctrl-C is set as INTR).
Linux seems to be the only unix-like OS (recently I've verified this on
Solaris, BSD, and Mac OS X) that does *not* behave this way, and I really
miss this as a good visual confirmation of the interrupt of a program in
the console or xterm. I remember this fondly from many Unixs I've used
over the years as well. Bringing this to Linux also seems like a good way
to make it yet more compliant with standard unix-like behavior.
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/n_tty.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff -puN drivers/char/n_tty.c~tty-enable-the-echoing-of-c-in-the-n_tty-discipline drivers/char/n_tty.c
--- a/drivers/char/n_tty.c~tty-enable-the-echoing-of-c-in-the-n_tty-discipline
+++ a/drivers/char/n_tty.c
@@ -769,7 +769,22 @@ static inline void n_tty_receive_char(st
signal = SIGTSTP;
if (c == SUSP_CHAR(tty)) {
send_signal:
- isig(signal, tty, 0);
+ /*
+ * Echo character, and then send the signal.
+ * Note that we do not use isig() here because we want
+ * the order to be:
+ * 1) flush, 2) echo, 3) signal
+ */
+ if (!L_NOFLSH(tty)) {
+ n_tty_flush_buffer(tty);
+ if (tty->driver->flush_buffer)
+ tty->driver->flush_buffer(tty);
+ }
+ if (L_ECHO(tty)) {
+ echo_char(c, tty);
+ }
+ if (tty->pgrp)
+ kill_pgrp(tty->pgrp, signal, 1);
return;
}
}
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
tty-enable-the-echoing-of-c-in-the-n_tty-discipline.patch
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