[PATCH libinput] test: call K_OFF when run on the vt

[Peter Hutterer]

Slight disadvantage: this breaks Ctrl+C to cancel the test suite when run
from the VT. Still potentially better than injecting semi-random events.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
Pekka noticed this yesterday. This approach is the simplest solution,
allowing the test suite to be run as-is but but as soon as any options are
specified we don't touch things. This saves us the need for rollbacks in
case of failures (we usually fork everything except in the below cases).

It's a bit of a niche case IMO so not sure we need to put a lot more effort
in. I'm not even that happy with this patch, so unless there's a real need
for it...

 test/litest.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/test/litest.c b/test/litest.c
index 9f4681bb..03e19a81 100644
--- a/test/litest.c
+++ b/test/litest.c
@@ -56,6 +56,8 @@
 #include "litest-int.h"
 #include "libinput-util.h"
 
+#include <linux/kd.h>
+
 #define UDEV_RULES_D "/run/udev/rules.d"
 #define UDEV_RULE_PREFIX "99-litest-"
 #define UDEV_HWDB_D "/etc/udev/hwdb.d"
@@ -3722,6 +3724,8 @@ main(int argc, char **argv)
 {
 	const struct rlimit corelimit = { 0, 0 };
 	enum litest_mode mode;
+	int tty_mode = -1;
+	int failed_tests;
 
 	if (getuid() != 0) {
 		fprintf(stderr,
@@ -3762,6 +3766,22 @@ main(int argc, char **argv)
 	if (setrlimit(RLIMIT_CORE, &corelimit) != 0)
 		perror("WARNING: Core dumps not disabled. Reason");
 
-	return litest_run(argc, argv);
+	/* If we're running 'normally' on the VT, disable the keyboard to
+	 * avoid messing up our host. But if we're inside gdb or running
+	 * without forking, leave it as-is.
+	 */
+	if (jobs > 1 &&
+	    !in_debugger &&
+	    getenv("CK_FORK") == NULL &&
+	    isatty(STDIN_FILENO) &&
+	    ioctl(STDIN_FILENO, KDGKBMODE, &tty_mode) == 0)
+		ioctl(STDIN_FILENO, KDSKBMODE, K_OFF);
+
+	failed_tests = litest_run(argc, argv);
+
+	if (tty_mode != -1)
+		ioctl(STDIN_FILENO, KDSKBMODE, tty_mode);
+
+	return failed_tests;
 }
 #endif
-- 
2.14.3