Fix Static analysis warning.

lib/CMakeLists.txt

@@ -2,6 +2,8 @@ cmake_minimum_required (VERSION 3.0)
 
 project (librestd)
 
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
 if(DOMO_BUILD_TEST)
 add_definitions (-g -DBUILD_DEBUG)
 add_definitions("-fprofile-arcs -ftest-coverage")

lib/src/restd.c

@@ -23,6 +23,9 @@
  *
  */
 
+// This is an independent project of an individual developer. Dear PVS-Studio, please check it.
+// PVS-Studio Static Code Analyzer for C, C++, C#, and Java: http://www.viva64.com
+
 /*------------------------------- INCLUDES ----------------------------------*/
 
 #include <string.h>
@@ -513,8 +516,11 @@ char *restd_http_get_body(restd_resp_t *response)
     size_t len = evbuffer_get_length(buf);
 
     body = malloc(len + 1);
-    int ret = evbuffer_copyout(buf, body, len);
-    body[len] = '\0';
+    if (body != NULL)
+    {
+        int ret = evbuffer_copyout(buf, body, len);
+        body[len] = '\0';
+    }
 
     return body;
 }