From aa09c247f5680ea11306e8693a6530f5b06d222b Mon Sep 17 00:00:00 2001

From: "Vladimir D. Seleznev" <vseleznv@altlinux.org>

Date: Mon, 6 Nov 2017 18:43:38 +0300

Subject: [PATCH] ALT: netcat usage

---

 libressl/apps/nc/netcat.c | 3 +++

 1 file changed, 3 insertions(+)

diff --git a/libressl/apps/nc/netcat.c b/libressl/apps/nc/netcat.c

index 442cf7c..f6964a6 100644

--- a/libressl/apps/nc/netcat.c

+++ b/libressl/apps/nc/netcat.c

@@ -176,6 +176,9 @@ main(int argc, char *argv[])

 	uport = NULL;

 	Rflag = tls_default_ca_cert_file();

+	if (argc < 1)

+		usage(1);

+

 	signal(SIGPIPE, SIG_IGN);

 	while ((ch = getopt(argc, argv,

-- 

2.33.7