log: Add termination to prefix log

2022-05-02 17:02:03 +02:00
parent ed7624e4f9
commit 47a7b4a55b
2 changed files with 3 additions and 2 deletions
--- a/lightningd/log.c
+++ b/lightningd/log.c
@@ -614,7 +614,8 @@ static char *arg_log_prefix(const char *arg, struct log *log)

 static void show_log_prefix(char buf[OPT_SHOW_LEN], const struct log *log)
 {
-	strncpy(buf, log->prefix->prefix, OPT_SHOW_LEN);
+	strncpy(buf, log->prefix->prefix, OPT_SHOW_LEN - 1);
+	buf[OPT_SHOW_LEN - 1] = '\0';
 }

 static int signalfds[2];