[PATCH 1/1] Cygwin: pty: Fix potential state mismatch regarding pseudo console.

[Takashi Yano]

- PTY with pseudo console support sitll has problem which potentially
  cause state mismatch between state variable and real console state.
  This patch fixes this issue.
---
 winsup/cygwin/dtable.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc
index 4e9b6ed56..7b2e52005 100644
--- a/winsup/cygwin/dtable.cc
+++ b/winsup/cygwin/dtable.cc
@@ -159,14 +159,19 @@ dtable::stdio_init ()
            {
              bool attached = !!fhandler_console::get_console_process_id
                (ptys->getHelperProcessId (), true);
-             if (!attached)
+             if (attached)
+               break;
+             else
                {
                  /* Not attached to pseudo console in fork() or spawn()
                     by some reason. This happens if the executable is
                     a windows GUI binary, such as mintty. */
                  FreeConsole ();
                  if (AttachConsole (ptys->getHelperProcessId ()))
-                   break;
+                   {
+                     ptys->fixup_after_attach (false);
+                     break;
+                   }
                }
            }
        }
-- 
2.21.0