From 9228171eb000fd074ad7b556edd70b674fa01504 Mon Sep 17 00:00:00 2001
From: Michael Santos <michael.santos@gmail.com>
Date: Mon, 18 Jun 2018 10:07:49 -0400
Subject: [PATCH] config: exit if list element is invalid
---
sslh-main.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/sslh-main.c b/sslh-main.c
index 2dbbbd6..663b9d6 100644
--- a/sslh-main.c
+++ b/sslh-main.c
@@ -217,6 +217,10 @@ static void setup_regex_probe(struct proto *p, config_setting_t* probes)
probe_list[i] = malloc(sizeof(*(probe_list[i])));
CHECK_ALLOC(probe_list[i], "malloc");
expr = config_setting_get_string_elem(probes, i);
+ if (expr == NULL) {
+ fprintf(stderr, "%s: invalid probe specified\n", p->description);
+ exit(1);
+ }
res = regcomp(probe_list[i], expr, REG_EXTENDED);
if (res) {
err = malloc(errsize = regerror(res, probe_list[i], NULL, 0));
@@ -264,6 +268,10 @@ static void setup_sni_alpn_list(struct proto *p, config_setting_t* config_items,
for (i = 0; i < num_probes; i++) {
config_item = config_setting_get_string_elem(config_items, i);
+ if (config_item == NULL) {
+ fprintf(stderr, "%s: invalid %s specified\n", p->description, name);
+ exit(1);
+ }
sni_hostname_list[i] = malloc(max_server_name_len);
CHECK_ALLOC(sni_hostname_list[i], "malloc");
strcpy (sni_hostname_list[i], config_item);