From bec3b4865ecc540e332c806fe03190867d85b5b3 Mon Sep 17 00:00:00 2001
From: Aaron Ballman <aaron@aaronballman.com>
Date: Tue, 11 Feb 2014 03:40:14 +0000
Subject: Using the helper API for random number generation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201125 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/Path.cpp         |  1 +
 lib/Support/Unix/Path.inc    |  1 -
 lib/Support/Windows/Path.inc | 14 +-------------
 3 files changed, 2 insertions(+), 14 deletions(-)

(limited to 'lib/Support')

diff --git a/lib/Support/Path.cpp b/lib/Support/Path.cpp
index c2b3f1863e..1872af55ed 100644
--- a/lib/Support/Path.cpp
+++ b/lib/Support/Path.cpp
@@ -15,6 +15,7 @@
 #include "llvm/Support/Endian.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Process.h"
 #include <cctype>
 #include <cstdio>
 #include <cstring>
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc
index d0b63b5ba5..cda976fdee 100644
--- a/lib/Support/Unix/Path.inc
+++ b/lib/Support/Unix/Path.inc
@@ -17,7 +17,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "Unix.h"
-#include "llvm/Support/Process.h"
 #include <limits.h>
 #include <stdio.h>
 #if HAVE_SYS_STAT_H
diff --git a/lib/Support/Windows/Path.inc b/lib/Support/Windows/Path.inc
index 5a41e49e25..a431fa0480 100644
--- a/lib/Support/Windows/Path.inc
+++ b/lib/Support/Windows/Path.inc
@@ -112,25 +112,13 @@ static error_code createUniqueEntity(const Twine &model, int &result_fd,
   // needed if the randomly chosen path already exists.
   SmallVector<wchar_t, 128> random_path_utf16;
 
-  // Get a Crypto Provider for CryptGenRandom.
-  HCRYPTPROV HCPC;
-  if (!::CryptAcquireContextW(&HCPC,
-                              NULL,
-                              NULL,
-                              PROV_RSA_FULL,
-                              CRYPT_VERIFYCONTEXT))
-    return windows_error(::GetLastError());
-  ScopedCryptContext CryptoProvider(HCPC);
-
 retry_random_path:
   random_path_utf16.set_size(0);
   for (SmallVectorImpl<wchar_t>::const_iterator i = model_utf16.begin(),
                                                 e = model_utf16.end();
                                                 i != e; ++i) {
     if (*i == L'%') {
-      BYTE val = 0;
-      if (!::CryptGenRandom(CryptoProvider, 1, &val))
-          return windows_error(::GetLastError());
+      unsigned val = sys::Process::GetRandomNumber();
       random_path_utf16.push_back(L"0123456789abcdef"[val & 15]);
     }
     else
-- 
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