usernsexec: don't fail if we can't open pty

It's nice if we can do it, but not required. Exiting on this failure causes lxc-create started by root as a less-privileged userid to fail. Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com> Acked-by: Stéphane Graber <stgraber@ubuntu.com>

usernsexec: don't fail if we can't open pty
8d4b877a · Serge Hallyn · df2d4205 · 8d4b877a
Commit 8d4b877a authored Jan 12, 2014 by Serge Hallyn
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lxc_usernsexec.c src/lxc/lxc_usernsexec.c +2 -3

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--- a/src/lxc/lxc_usernsexec.c
+++ b/src/lxc/lxc_usernsexec.c
@@ -76,9 +76,8 @@ static void opentty(const char * tty) {
 	fd = open(tty, O_RDWR | O_NONBLOCK);
 	if (fd == -1) {
-		printf("FATAL: can't reopen tty: %s", strerror(errno));
+		printf("WARN: could not reopen tty: %s", strerror(errno));
-		sleep(1);
+		return;
-		exit(1);
 	}
 	flags = fcntl(fd, F_GETFL);