libmemcached: fix #125: allocation failure on negative expiration

[awesomized/libmemcached] / src / libmemcached / flush.cc

diff --git a/src/libmemcached/flush.cc b/src/libmemcached/flush.cc
index bc663984774994ff07f04817fbb48cb96139be2b..e0b45b68adf56c0d59f1a4aa9b3d71b18c68d7bb 100644 (file)
--- a/src/libmemcached/flush.cc
+++ b/src/libmemcached/flush.cc
@@ -1,6 +1,6 @@
 /*
     +--------------------------------------------------------------------+
-    | libmemcached - C/C++ Client Library for memcached                  |
+    | libmemcached-awesome - C/C++ Client Library for memcached          |
     +--------------------------------------------------------------------+
     | Redistribution and use in source and binary forms, with or without |
     | modification, are permitted under the terms of the BSD license.    |
@@ -9,7 +9,7 @@
     | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
     +--------------------------------------------------------------------+
     | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
-    | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
+    | Copyright (c) 2020-2021 Michael Wallner        https://awesome.co/ |
     +--------------------------------------------------------------------+
 */
 
@@ -61,10 +61,10 @@ static memcached_return_t memcached_flush_binary(Memcached *ptr, time_t expirati
 
 static memcached_return_t memcached_flush_textual(Memcached *ptr, time_t expiration,
                                                   const bool reply) {
-  char buffer[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1];
+  char buffer[MEMCACHED_MAXIMUM_INTEGER_DISPLAY_LENGTH + 1 + 1];
   int send_length = 0;
   if (expiration) {
-    send_length = snprintf(buffer, sizeof(buffer), "%llu", (unsigned long long) expiration);
+    send_length = snprintf(buffer, sizeof(buffer), "%lld", (long long) expiration);
   }
 
   if (size_t(send_length) >= sizeof(buffer) or send_length < 0) {