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From: Takashi Yano <tyan0@sourceware.org>
To: cygwin-cvs@sourceware.org
Subject: [newlib-cygwin/cygwin-3_3-branch] Cygwin: pty: Fix console mode of
 non-cygwin apps in background.
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https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=5e23f2376efb6540b74b3e10297a128c9bd89b5f

commit 5e23f2376efb6540b74b3e10297a128c9bd89b5f
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date:   Sun Dec 12 21:24:15 2021 +0900

    Cygwin: pty: Fix console mode of non-cygwin apps in background.
    
    - If the non-cygwin app is started in the background in pseudo
      console, the console mode is broken for the app. This patch fixes
      the issue.

Diff:
---
 winsup/cygwin/fhandler_tty.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler_tty.cc b/winsup/cygwin/fhandler_tty.cc
index 37e27f34a..7b18a15e7 100644
--- a/winsup/cygwin/fhandler_tty.cc
+++ b/winsup/cygwin/fhandler_tty.cc
@@ -3384,7 +3384,7 @@ skip_create:
   if (get_ttyp ()->previous_output_code_page)
     SetConsoleOutputCP (get_ttyp ()->previous_output_code_page);
 
-  do
+  if (get_ttyp ()->getpgid () == myself->pgid)
     {
       termios &t = get_ttyp ()->ti;
       DWORD mode;
@@ -3409,7 +3409,6 @@ skip_create:
 	mode |= DISABLE_NEWLINE_AUTO_RETURN;
       SetConsoleMode (hpConOut, mode);
     }
-  while (false);
 
   return true;