From 6abc26163488322d2601245427d8e01934d726de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=B4=94=E4=B8=80=E9=B8=A3?= <cuiyiming@iie.ac.cn>
Date: Tue, 18 Sep 2018 10:47:30 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dssl=5Fchello=5Fparse=E4=B8=AD?=
 =?UTF-8?q?=E7=9A=84=E5=86=85=E5=AD=98=E6=B7=B7=E4=B9=B1?=
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---
 platform/src/ssl_utils.cc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platform/src/ssl_utils.cc b/platform/src/ssl_utils.cc
index 0e2c306..dd25a79 100644
--- a/platform/src/ssl_utils.cc
+++ b/platform/src/ssl_utils.cc
@@ -1910,7 +1910,10 @@ static char* parse_cipher_suites(struct cipher_suite* _cipher_suite_list, int n,
 		pos += 2;
 	}
 	int len = strnlen(cipher_suites_str, TFE_STRING_MAX);
-	cipher_suites_str[len-1] = '\0';
+	if(len > 0)
+	{
+		cipher_suites_str[len-1] = '\0';
+	}
 	if(pos != buff_len)
 	{
 		*result = CHELLO_PARSE_INVALID_FORMAT;