From 9d9365d161979a031de817c1fbcab6508dfee013 Mon Sep 17 00:00:00 2001 From: Rafael Zalamena Date: Mon, 25 Jan 2021 08:33:01 -0300 Subject: [PATCH] watchfrr: fix crash on missing optional argument Fix `netns` command line handling for missing argument (it's optional). Signed-off-by: Rafael Zalamena --- watchfrr/watchfrr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/watchfrr/watchfrr.c b/watchfrr/watchfrr.c index d1003ad5fa..81ada35795 100644 --- a/watchfrr/watchfrr.c +++ b/watchfrr/watchfrr.c @@ -1416,7 +1416,7 @@ int main(int argc, char **argv) } break; case OPTION_NETNS: netns_en = true; - if (strchr(optarg, '/')) { + if (optarg && strchr(optarg, '/')) { fprintf(stderr, "invalid network namespace name \"%s\" (may not contain slashes)\n", optarg); -- 2.39.5