[PATCH] Cygwin: termios: Set ECHOE, ECHOK, ECHOCTL and ECHOKE by default.

[Takashi Yano]

- Backspace key does not work correctly in linux session opend by
  ssh from cygwin console if the shell is bash. This is due to lack
  of these flags.

  Addresses: https://cygwin.com/pipermail/cygwin/2020-May/244837.html.
---
 winsup/cygwin/fhandler_termios.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc
index b6759b0a7..b03478b87 100644
--- a/winsup/cygwin/fhandler_termios.cc
+++ b/winsup/cygwin/fhandler_termios.cc
@@ -33,7 +33,8 @@ fhandler_termios::tcinit (bool is_pty_master)
       tc ()->ti.c_iflag = BRKINT | ICRNL | IXON | IUTF8;
       tc ()->ti.c_oflag = OPOST | ONLCR;
       tc ()->ti.c_cflag = B38400 | CS8 | CREAD;
-      tc ()->ti.c_lflag = ISIG | ICANON | ECHO | IEXTEN;
+      tc ()->ti.c_lflag = ISIG | ICANON | ECHO | IEXTEN
+	| ECHOE | ECHOK | ECHOCTL | ECHOKE;
 
       tc ()->ti.c_cc[VDISCARD]	= CFLUSH;
       tc ()->ti.c_cc[VEOL]	= CEOL;
-- 
2.21.0