Fix strncpy length parameters to avoid non-nul-terminated strings

1 files changed, 2 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index 80b4636e..a7afcbf8 100644
--- a/src/main.c
+++ b/src/main.c
@@ -189,7 +189,8 @@ static void parse_config(GKeyFile *config)
 		g_clear_error(&err);
 	} else {
 		debug("deviceid=%s", str);
-		strncpy(main_opts.deviceid, str, sizeof(main_opts.deviceid));
+		strncpy(main_opts.deviceid, str,
+					sizeof(main_opts.deviceid) - 1);
 		g_free(str);
 	}