From f804da9bef8513fcc3375dc6bc9f4ff9cac544bf Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Wed, 27 Oct 1999 04:41:38 +0000
Subject: [PATCH] Port to NT.

---
 include/portable.nt             |  3 +++
 libraries/liblutil/entropy.c    | 30 ++++++++++++++++++++++++++++++
 libraries/liblutil/liblutil.dsp |  4 ++++
 3 files changed, 37 insertions(+)

diff --git a/include/portable.nt b/include/portable.nt
index af077ef6f2..e358c26848 100644
--- a/include/portable.nt
+++ b/include/portable.nt
@@ -94,6 +94,9 @@ typedef char * caddr_t;
 /* we have <process.h> */
 #define HAVE_PROCESS_H 1
 
+/* we have <wincrypt.h> */
+#define HAVE_WINCRYPT_H 1
+
 #define LDAP_SIGUSR1	SIGILL
 #define LDAP_SIGUSR2	SIGTERM
 
diff --git a/libraries/liblutil/entropy.c b/libraries/liblutil/entropy.c
index c372efab10..07b4c83b5f 100644
--- a/libraries/liblutil/entropy.c
+++ b/libraries/liblutil/entropy.c
@@ -6,6 +6,16 @@
 
 #include "portable.h"
 
+#include <ac/string.h>
+#include <ac/time.h>
+
+#ifdef HAVE_WINCRYPT_H
+#include <wincrypt.h>
+#endif
+#ifdef HAVE_PROCESS_H
+#include <process.h>
+#endif
+
 #include <fcntl.h>
 
 #include <lutil.h>
@@ -35,6 +45,26 @@ int lutil_entropy( char *buf, int nbytes )
 		/* should return nbytes */
 		if( rc < nbytes ) return -1;
 
+		return 0;
+	}
+#elif PROV_RSA_FULL
+	{
+		/* Not used since _WIN32_WINNT not set... */
+		HCRYPTPROV hProv = 0;
+
+		/* Get handle to user default provider */
+		if(!CryptAcquireContext(&hProv, NULL, NULL, PROV_RSA_FULL, 0)) {
+		   return -1;
+		}
+
+		/* Generate random initialization vector */
+		if(!CryptGenRandom(hProv, (DWORD) nbytes, (BYTE *) buf)) {
+		   return -1;
+		}
+
+		/* Release provider handle */
+		if(hProv != 0) CryptReleaseContext(hProv, 0);
+
 		return 0;
 	}
 #else
diff --git a/libraries/liblutil/liblutil.dsp b/libraries/liblutil/liblutil.dsp
index 54800a3eca..af200def70 100644
--- a/libraries/liblutil/liblutil.dsp
+++ b/libraries/liblutil/liblutil.dsp
@@ -136,6 +136,10 @@ SOURCE=.\debug.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\entropy.c
+# End Source File
+# Begin Source File
+
 SOURCE="..\..\include\getopt-compat.h"
 # End Source File
 # Begin Source File
-- 
2.39.5