From 0bb9d51965f1920f303f8c9abd8133ce99d5818f Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Wed, 26 Feb 2014 21:42:59 +0000
Subject: [PATCH] Don't write into buffer if no arguments, reported by Filipe
 Rosset.

---
 cmd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmd.c b/cmd.c
index 5e6b93aa..a7a71a62 100644
--- a/cmd.c
+++ b/cmd.c
@@ -138,6 +138,9 @@ cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
 	size_t	arglen;
 	int	i;
 
+	if (argc == 0)
+		return (0);
+
 	*buf = '\0';
 	for (i = 0; i < argc; i++) {
 		if (strlcpy(buf, argv[i], len) >= len)