From d9340d6c8e1b227044fc90bc40c5da1d1f6b0dcc Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Wed, 27 May 2015 00:18:20 +0200
Subject: MDEV-8126 encryption for temp files

IO_CACHE tempfiles encryption
---
 mysys/mf_iocache2.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'mysys/mf_iocache2.c')

diff --git a/mysys/mf_iocache2.c b/mysys/mf_iocache2.c
index 5443d5c21c5..93caa7bc74a 100644
--- a/mysys/mf_iocache2.c
+++ b/mysys/mf_iocache2.c
@@ -182,6 +182,13 @@ void my_b_seek(IO_CACHE *info,my_off_t pos)
 
 int my_b_pread(IO_CACHE *info, uchar *Buffer, size_t Count, my_off_t pos)
 {
+  if (info->myflags & MY_ENCRYPT)
+  {
+    my_b_seek(info, pos);
+    return my_b_read(info, Buffer, Count);
+  }
+
+  /* backward compatibility behavior. XXX remove it? */
   if (mysql_file_pread(info->file, Buffer, Count, pos, info->myflags | MY_NABP))
     return info->error= -1;
   return 0;
-- 
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