diff options
| -rw-r--r-- | tools/scmp_bpf_sim.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/scmp_bpf_sim.c b/tools/scmp_bpf_sim.c index 73d056b..1408717 100644 --- a/tools/scmp_bpf_sim.c +++ b/tools/scmp_bpf_sim.c @@ -340,6 +340,8 @@ int main(int argc, char *argv[]) exit_fault(ENOMEM); /* load the bpf program */ + if (opt_file == NULL) + exit_usage(argv[0]); file = fopen(opt_file, "r"); if (file == NULL) exit_fault(errno); |