[tfaber] 63633: [ADVAPI32] - Do not use the upper byte of RtlRandom's result in RtlGenRandom, since the function only generates 31 bits. Should fix UuidCreate test in rpcrt4:rpc.

Author: tfaber
Date: Mon Jun 23 15:21:13 2014
New Revision: 63633

URL: http://svn.reactos.org/svn/reactos?rev=63633&view=rev
Log:
[ADVAPI32]
- Do not use the upper byte of RtlRandom's result in RtlGenRandom, since the function
only generates 31 bits. Should fix UuidCreate test in rpcrt4:rpc.

Modified:
    trunk/reactos/dll/win32/advapi32/misc/sysfunc.c

Modified: trunk/reactos/dll/win32/advapi32/misc/sysfunc.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/advapi32/misc/sy…
==============================================================================
--- trunk/reactos/dll/win32/advapi32/misc/sysfunc.c	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/advapi32/misc/sysfunc.c	[iso-8859-1] Mon Jun 23 15:21:13 2014
@@ -607,9 +607,9 @@
         do
         {
             /* Get each byte from the pseudo random number and store it in the buffer */
-            *pBuffer = (BYTE)(uPseudoRandom >> 8 * (dwLen % 4) & 0xFF);
+            *pBuffer = (BYTE)(uPseudoRandom >> 8 * (dwLen % 3) & 0xFF);
             ++pBuffer;
-        } while(--dwLen % 4);
+        } while(--dwLen % 3);
     } while(dwLen);
 
     return TRUE;