From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin-patches@cygwin.com
Subject: [PATCH 2/8] Cygwin: pty: Pass Ctrl-Z (EOF) to non-cygwin apps with disable_pcon.
Date: Sun, 13 Feb 2022 23:39:04 +0900 [thread overview]
Message-ID: <20220213143910.1947-3-takashi.yano@nifty.ne.jp> (raw)
In-Reply-To: <20220213143910.1947-1-takashi.yano@nifty.ne.jp>
- Previously, non-cygwin app running in pty started without pseudo
console support was suspended by Ctrl-Z rather than sending EOF.
Even worse, suspended app could not be resumed by fg command. With
this patch, Ctrl-Z (EOF for non-cygwin apps) is passed to non-cygwin
app instead of suspending that app. This patch also handles Ctrl-\
(QUIT) and Ctrl-D (EOF) as well.
---
winsup/cygwin/fhandler_termios.cc | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/winsup/cygwin/fhandler_termios.cc b/winsup/cygwin/fhandler_termios.cc
index fe1021520..b935a70bc 100644
--- a/winsup/cygwin/fhandler_termios.cc
+++ b/winsup/cygwin/fhandler_termios.cc
@@ -329,6 +329,7 @@ fhandler_termios::line_edit (const char *rptr, size_t nread, termios& ti,
if (ti.c_iflag & ISTRIP)
c &= 0x7f;
winpids pids ((DWORD) 0);
+ bool need_check_sigs = get_ttyp ()->pcon_input_state_eq (tty::to_cyg);
if (get_ttyp ()->pcon_input_state_eq (tty::to_nat))
{
bool need_discard_input = false;
@@ -349,11 +350,15 @@ fhandler_termios::line_edit (const char *rptr, size_t nread, termios& ti,
GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0);
need_discard_input = true;
}
+ if (p->ctty == get_ttyp ()->ntty
+ && p->pgid == get_ttyp ()->getpgid () && !p->cygstarted)
+ need_check_sigs = true;
}
- if (need_discard_input
- && !CCEQ (ti.c_cc[VINTR], c)
+ if (!CCEQ (ti.c_cc[VINTR], c)
&& !CCEQ (ti.c_cc[VQUIT], c)
&& !CCEQ (ti.c_cc[VSUSP], c))
+ need_check_sigs = false;
+ if (need_discard_input && !need_check_sigs)
{
if (!(ti.c_lflag & NOFLSH))
{
@@ -364,7 +369,7 @@ fhandler_termios::line_edit (const char *rptr, size_t nread, termios& ti,
continue;
}
}
- if (ti.c_lflag & ISIG)
+ if ((ti.c_lflag & ISIG) && need_check_sigs)
{
int sig;
if (CCEQ (ti.c_cc[VINTR], c))
@@ -469,7 +474,7 @@ fhandler_termios::line_edit (const char *rptr, size_t nread, termios& ti,
}
continue;
}
- else if (CCEQ (ti.c_cc[VEOF], c))
+ else if (CCEQ (ti.c_cc[VEOF], c) && need_check_sigs)
{
termios_printf ("EOF");
accept_input ();
--
2.35.1
next prev parent reply other threads:[~2022-02-13 14:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-13 14:39 [PATCH 0/8] Several modifications for pty and console code Takashi Yano
2022-02-13 14:39 ` [PATCH 1/8] Cygwin: pty, console: Fix Ctrl-C handling for non-cygwin apps Takashi Yano
2022-02-13 14:39 ` Takashi Yano [this message]
2022-02-13 14:39 ` [PATCH 3/8] Cygwin: pty: Prevent deadlock on echo output Takashi Yano
2022-02-13 14:39 ` [PATCH 4/8] Cygwin: pty: Revise the code to wait for completion of forwarding Takashi Yano
2022-02-13 14:39 ` [PATCH 5/8] Cygwin: pty: Discard input in from_master_nat pipe on signal as well Takashi Yano
2022-02-13 14:39 ` [PATCH 6/8] Cygwin: pty: Fix a bug in tty_min::segpgid() Takashi Yano
2022-02-13 14:39 ` [PATCH 7/8] Cygwin: console: Fix console mode for non-cygwin inferior of GDB Takashi Yano
2022-02-13 14:39 ` [PATCH 8/8] Cygwin: console: Set console mode even if stdin/stdout is redirected Takashi Yano
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