From 3108ba67a2cb6230cb43d24608187f7201951822 Mon Sep 17 00:00:00 2001
From: Brian Aker <brian@tangent.org>
Date: Tue, 18 Dec 2007 09:19:09 -0800
Subject: [PATCH] Fixed error in lack of pointer found (Tim Bunce discovered)

---
 ChangeLog             |  2 ++
 lib/memcached_hosts.c |  4 ++--
 tests/function.c      | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index ee8246d2..094b807d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -5,6 +5,8 @@
   * Patches from Kevin Dalley for FreeBSD 4.0
   * Added multi delete functions.
   * All get key returns have C style null termination
+  * If memcached_server_list_append is passed NULLs instead of pointers it
+    returns NULL.
 
 0.12 Tue Dec 11 15:20:55 PST 2007
   * Updates for consistent hashing
diff --git a/lib/memcached_hosts.c b/lib/memcached_hosts.c
index 5661e541..6f49b270 100644
--- a/lib/memcached_hosts.c
+++ b/lib/memcached_hosts.c
@@ -148,8 +148,8 @@ memcached_server_st *memcached_server_list_append(memcached_server_st *ptr,
   unsigned int count;
   memcached_server_st *new_host_list;
 
-  if (!hostname)
-    return ptr;
+  if (hostname == NULL || error == NULL)
+    return NULL;
 
   if (!port)
     port= MEMCACHED_DEFAULT_PORT; 
diff --git a/tests/function.c b/tests/function.c
index ae2ec032..5b598003 100644
--- a/tests/function.c
+++ b/tests/function.c
@@ -40,6 +40,23 @@ uint8_t init_test(memcached_st *not_used)
   return 0;
 }
 
+uint8_t server_list_null_test(memcached_st *ptr)
+{
+  memcached_server_st *server_list;
+  memcached_return rc;
+
+  server_list= memcached_server_list_append(NULL, NULL, 0, NULL);
+  assert(server_list == NULL);
+
+  server_list= memcached_server_list_append(NULL, "localhost", 0, NULL);
+  assert(server_list == NULL);
+
+  server_list= memcached_server_list_append(NULL, NULL, 0, &rc);
+  assert(server_list == NULL);
+
+  return 0;
+}
+
 uint8_t allocation_test(memcached_st *not_used)
 {
   memcached_st *memc;
@@ -1944,6 +1961,7 @@ test_st tests[] ={
   {"flush", 0, flush_test },
   {"init", 0, init_test },
   {"allocation", 0, allocation_test },
+  {"server_list_null_test", 0, server_list_null_test},
   {"clone_test", 0, clone_test },
   {"error", 0, error_test },
   {"set", 0, set_test },
-- 
2.30.2