From 40550073ef0ed6261cd7f95ffb07312f32e562c1 Mon Sep 17 00:00:00 2001
From: ysk <shaokunyang@163.com>
Date: Wed, 3 Jun 2020 11:19:37 +0800
Subject: fix segment fault cause by the ssl.server_names when it may NULL

---
 src/lib/ndpi_main.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/lib')

diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index fc7a5e530..ca557ea31 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -131,6 +131,10 @@ void *ndpi_realloc(void *ptr, size_t old_size, size_t new_size) {
 /* ****************************************** */
 
 char *ndpi_strdup(const char *s) {
+  if( s == NULL ){
+    return NULL;
+  }
+
   int len = strlen(s);
   char *m = ndpi_malloc(len + 1);
 
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