From bac5b7405b085d3926fdca80f221fa462dbe27e5 Mon Sep 17 00:00:00 2001
From: Charles Milette <charles.milette@gmail.com>
Date: Fri, 13 May 2022 21:42:29 -0400
Subject: Fix UWP builds by defining VirtualLock

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18311)

(cherry picked from commit ff1efe6e261598c3f71727b796767a8e716bcbe2)
---
 crypto/mem_sec.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/crypto/mem_sec.c b/crypto/mem_sec.c
index c2cc2cbf32..9458135572 100644
--- a/crypto/mem_sec.c
+++ b/crypto/mem_sec.c
@@ -23,6 +23,20 @@
 #ifndef OPENSSL_NO_SECURE_MEMORY
 # if defined(_WIN32)
 #  include <windows.h>
+#  if defined(WINAPI_FAMILY_PARTITION) \
+     && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP | WINAPI_PARTITION_SYSTEM)
+/*
+ * While VirtualLock is available under the app partition (e.g. UWP),
+ * the headers do not define the API. Define it ourselves instead.
+ */
+WINBASEAPI
+BOOL
+WINAPI
+VirtualLock(
+    _In_ LPVOID lpAddress,
+    _In_ SIZE_T dwSize
+    );
+#  endif
 # endif
 # include <stdlib.h>
 # include <assert.h>
-- 
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