From 9dbe35a4dd8d5fce96c627f000d15395f32bc55a Mon Sep 17 00:00:00 2001
From: tjw <tjw@edf5b092-35ff-0310-97b2-ce42778d08ea>
Date: Fri, 16 Feb 2007 23:50:37 +0000
Subject: * (bug 3019) use the operating system's random number generator if
 possible   when generating the qkey file

git-svn-id: svn://svn.icculus.org/quake3/trunk@1046 edf5b092-35ff-0310-97b2-ce42778d08ea
---
 code/win32/win_shared.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'code/win32')

diff --git a/code/win32/win_shared.c b/code/win32/win_shared.c
index f28ff3a..24e3079 100644
--- a/code/win32/win_shared.c
+++ b/code/win32/win_shared.c
@@ -32,6 +32,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include <direct.h>
 #include <io.h>
 #include <conio.h>
+#include <wincrypt.h>
 
 /*
 ================
@@ -81,6 +82,24 @@ void Sys_SnapVector( float *v )
 }
 #endif
 
+qboolean Sys_RandomBytes( byte *string, int len )
+{
+	HCRYPTPROV  prov;
+
+	if( !CryptAcquireContext( &prov, NULL, NULL,
+		PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) )  {
+
+		return qfalse;
+	}
+
+	if( !CryptGenRandom( prov, len, (BYTE *)string ) )  {
+		CryptReleaseContext( prov, 0 );
+		return qfalse;
+	}
+	CryptReleaseContext( prov, 0 );
+	return qtrue;
+}
+
 
 /*
 **
-- 
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