From ffb87905cb3883c84598b87ca05384c17d59dee1 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 27 Feb 2014 13:26:22 -0700 Subject: sandbox: Allow Ctrl-C to work in sandbox It is useful for Cltl-C to be handled by U-Boot as it is on other boards. But it is also useful to be able to terminate U-Boot with Ctrl-C. Add an option to enable signals while in raw mode, and make this the default. Add an option to leave the terminal cooked, which is useful for redirecting output. Signed-off-by: Simon Glass --- arch/sandbox/cpu/os.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'arch/sandbox/cpu/os.c') diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c index 52e1096f36..9de71bb2b4 100644 --- a/arch/sandbox/cpu/os.c +++ b/arch/sandbox/cpu/os.c @@ -104,21 +104,22 @@ void os_exit(int exit_code) /* Restore tty state when we exit */ static struct termios orig_term; +static bool term_setup; static void os_fd_restore(void) { - tcsetattr(0, TCSANOW, &orig_term); + if (term_setup) + tcsetattr(0, TCSANOW, &orig_term); } /* Put tty into raw mode so and work */ -void os_tty_raw(int fd) +void os_tty_raw(int fd, bool allow_sigs) { - static int setup = 0; struct termios term; - if (setup) + if (term_setup) return; - setup = 1; + term_setup = true; /* If not a tty, don't complain */ if (tcgetattr(fd, &orig_term)) @@ -128,7 +129,7 @@ void os_tty_raw(int fd) term.c_iflag = IGNBRK | IGNPAR; term.c_oflag = OPOST | ONLCR; term.c_cflag = CS8 | CREAD | CLOCAL; - term.c_lflag = 0; + term.c_lflag = allow_sigs ? ISIG : 0; if (tcsetattr(fd, TCSANOW, &term)) return; -- cgit v1.2.1