tty02: open a slave tty with O_NOCTTY

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/zdtm/live/static/tty02.c

@@ -5,7 +5,6 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <signal.h>
 #include <sys/wait.h>
 #include <termios.h>
 #include <sys/ioctl.h>
@@ -13,11 +12,6 @@
 const char *test_doc	= "Check a non-controling terminal";
 const char *test_author	= "Andrey Vagin <avagin@openvz.org>";
 
-static void sighup_handler(int signo)
-{
-	test_msg("SIGHUP is here\n");
-}
-
 int main(int argc, char ** argv)
 {
 	int fdm, fds;
@@ -26,8 +20,6 @@ int main(int argc, char ** argv)
 
 	test_init(argc, argv);
 
-	signal(SIGHUP, sighup_handler);
-
 	setsid();
 
 	fdm = open("/dev/ptmx", O_RDWR);
@@ -41,17 +33,12 @@ int main(int argc, char ** argv)
 	slavename = ptsname(fdm);
 
 	/* set up a controlling terminal */
-	fds = open(slavename, O_RDWR);
+	fds = open(slavename, O_RDWR | O_NOCTTY);
 	if (fds == -1) {
 		err("Can't open a slave pseudoterminal %s", slavename);
 		return 1;
 	}
 
-	if (ioctl(fds, TIOCNOTTY)) {
-		err("Unable to detach a terminal");
-		return 1;
-	}
-
 	test_daemon();
 	test_waitsig();