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Cygwin: pty: Transfer input for native app only if the stdin is pcon. 

- Currently, transfer input is triggered even if the stdin of native
  app is not a pseudo console. With this patch it is triggered only
  if the stdin is a pseudo console.
This commit is contained in:
Takashi Yano via Cygwin-patches 2021-03-08 23:55:10 +09:00 committed by Corinna Vinschen
parent a9ff2cad68
commit 12325677f7
1 changed files with 10 additions and 8 deletions
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18
winsup/cygwin/fhandler_tty.cc
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@ -3084,14 +3084,16 @@ fhandler_pty_slave::setup_pseudoconsole (bool nopcon)
if (get_ttyp ()->pcon_pid && get_ttyp ()->pcon_pid != myself->pid
&& !!pinfo (get_ttyp ()->pcon_pid) && get_ttyp ()->pcon_activated)
{
/* Send CSI6n just for requesting transfer input. */
DWORD n;
WaitForSingleObject (input_mutex, INFINITE);
get_ttyp ()->req_xfer_input = true;
get_ttyp ()->pcon_start = true;
get_ttyp ()->pcon_start_pid = myself->pid;
WriteFile (get_output_handle_cyg (), "\033[6n", 4, &n, NULL);
ReleaseMutex (input_mutex);
if (GetStdHandle (STD_INPUT_HANDLE) == get_handle ())
{ /* Send CSI6n just for requesting transfer input. */
DWORD n;
WaitForSingleObject (input_mutex, INFINITE);
get_ttyp ()->req_xfer_input = true;
get_ttyp ()->pcon_start = true;
get_ttyp ()->pcon_start_pid = myself->pid;
WriteFile (get_output_handle_cyg (), "\033[6n", 4, &n, NULL);
ReleaseMutex (input_mutex);
}
/* Attach to the pseudo console which already exits. */
pinfo p (get_ttyp ()->pcon_pid);
HANDLE pcon_owner =