From b21e13f7488cedf597451fa2e9edcd078f118ef7 Mon Sep 17 00:00:00 2001
From: ftao <Filia.Tao@gmail.com>
Date: Sat, 12 Apr 2014 00:46:12 +0800
Subject: [PATCH] fix ss_decrypt_all failed ,cause server crash

---
 src/udprelay.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/udprelay.c b/src/udprelay.c
index 9c7d5f20..2b497892 100644
--- a/src/udprelay.c
+++ b/src/udprelay.c
@@ -504,6 +504,13 @@ static void remote_recv_cb (EV_P_ ev_io *w, int revents)
 
 #ifdef UDPRELAY_LOCAL
     buf = ss_decrypt_all(BUF_SIZE, buf, &buf_len, server_ctx->method);
+    if (buf == NULL){
+        if (verbose)
+        {
+            ERROR("udprelay_server_ss_decrypt_all");
+        }
+        goto CLEAN_UP;
+    }
 
     int len = parse_udprealy_header(buf, buf_len, NULL, NULL);
     if (len == 0 || len != addr_header_len)
@@ -580,6 +587,13 @@ static void server_recv_cb (EV_P_ ev_io *w, int revents)
 
 #ifdef UDPRELAY_REMOTE
     buf = ss_decrypt_all(BUF_SIZE, buf, &buf_len, server_ctx->method);
+    if (buf == NULL){
+        if (verbose)
+        {
+            ERROR("udprelay_server_ss_decrypt_all");
+        }
+        goto CLEAN_UP;
+    }
 #endif
 
 #ifdef UDPRELAY_LOCAL