ncurses 6.2 - patch 20211009
[ncurses.git] / progs / tty_settings.c
index 274de9fecf6fe01c56bbf2bee1e6d3cbd93a5d12..a9eb8cd8ba748b9095504130e713f4714ce4bf6a 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 2020,2021 Thomas E. Dickey                                     *
  * Copyright 2016,2017 Free Software Foundation, Inc.                       *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -36,7 +36,7 @@
 
 #include <fcntl.h>
 
-MODULE_ID("$Id: tty_settings.c,v 1.6 2020/02/02 23:34:34 tom Exp $")
+MODULE_ID("$Id: tty_settings.c,v 1.7 2021/10/08 23:53:32 tom Exp $")
 
 static int my_fd;
 static TTY original_settings;
@@ -74,10 +74,12 @@ save_tty_settings(TTY * tty_settings, bool need_tty)
 {
     if (!get_tty_settings(STDERR_FILENO, tty_settings) &&
        !get_tty_settings(STDOUT_FILENO, tty_settings) &&
-       !get_tty_settings(STDIN_FILENO, tty_settings) &&
-       !get_tty_settings(open("/dev/tty", O_RDWR), tty_settings)) {
+       !get_tty_settings(STDIN_FILENO, tty_settings)) {
        if (need_tty) {
-           failed("terminal attributes");
+           int fd = open("/dev/tty", O_RDWR);
+           if (!get_tty_settings(fd, tty_settings)) {
+               failed("terminal attributes");
+           }
        } else {
            my_fd = fileno(stdout);
        }