From 0617f84edac14cc7031547fb37e57869ded1cbe2 Mon Sep 17 00:00:00 2001
From: Thomas Faber <thomas.faber@reactos.org>
Date: Sun, 21 Jun 2015 19:15:01 +0000
Subject: [PATCH] [RTL][NDK][NTDLL_APITEST] - Properly implement/declare/test
 RtlCopyMappedMemory... it's not that hard CORE-9857

svn path=/trunk/; revision=68234
---
 reactos/include/ndk/rtlfuncs.h                |  8 +++++
 reactos/lib/rtl/memstream.c                   | 21 ++++++++---
 rostests/apitests/ntdll/CMakeLists.txt        |  1 +
 rostests/apitests/ntdll/RtlCopyMappedMemory.c | 35 +++++++++++++++++++
 rostests/apitests/ntdll/testlist.c            |  2 ++
 5 files changed, 62 insertions(+), 5 deletions(-)
 create mode 100644 rostests/apitests/ntdll/RtlCopyMappedMemory.c

diff --git a/reactos/include/ndk/rtlfuncs.h b/reactos/include/ndk/rtlfuncs.h
index d317f0623a3..c6ce74dccd4 100644
--- a/reactos/include/ndk/rtlfuncs.h
+++ b/reactos/include/ndk/rtlfuncs.h
@@ -2046,6 +2046,14 @@ RtlFillMemoryUlonglong(
     _In_ ULONGLONG Pattern
 );
 
+NTSYSAPI
+NTSTATUS
+NTAPI
+RtlCopyMappedMemory(
+    _Out_writes_bytes_all_(Size) PVOID Destination,
+    _In_reads_bytes_(Size) const VOID *Source,
+    _In_ SIZE_T Size
+);
 
 NTSYSAPI
 SIZE_T
diff --git a/reactos/lib/rtl/memstream.c b/reactos/lib/rtl/memstream.c
index 158640bea24..0549424ca45 100644
--- a/reactos/lib/rtl/memstream.c
+++ b/reactos/lib/rtl/memstream.c
@@ -469,13 +469,24 @@ RtlCloneMemoryStream(
 /*
  * @implemented
  */
-VOID
+NTSTATUS
 NTAPI
 RtlCopyMappedMemory(
-    _Out_ PVOID Destination,
-    _In_ const VOID *Source,
+    _Out_writes_bytes_all_(Size) PVOID Destination,
+    _In_reads_bytes_(Size) const VOID *Source,
     _In_ SIZE_T Size)
 {
-    /* FIXME: This is supposed to handle STATUS_IN_PAGE_ERROR exceptions */
-    RtlCopyMemory(Destination, Source, Size);
+    NTSTATUS Status = STATUS_SUCCESS;
+    _SEH2_TRY
+    {
+        RtlCopyMemory(Destination, Source, Size);
+    }
+    _SEH2_EXCEPT(_SEH2_GetExceptionCode() == STATUS_IN_PAGE_ERROR
+                    ? EXCEPTION_EXECUTE_HANDLER
+                    : EXCEPTION_CONTINUE_SEARCH)
+    {
+        Status = _SEH2_GetExceptionCode();
+    }
+    _SEH2_END;
+    return Status;
 }
diff --git a/rostests/apitests/ntdll/CMakeLists.txt b/rostests/apitests/ntdll/CMakeLists.txt
index 3313f4bcd80..570faec9ddc 100644
--- a/rostests/apitests/ntdll/CMakeLists.txt
+++ b/rostests/apitests/ntdll/CMakeLists.txt
@@ -15,6 +15,7 @@ list(APPEND SOURCE
     NtQueryVolumeInformationFile.c
     NtSaveKey.c
     RtlBitmap.c
+    RtlCopyMappedMemory.c
     RtlDetermineDosPathNameType.c
     RtlDoesFileExists.c
     RtlDosPathNameToNtPathName_U.c
diff --git a/rostests/apitests/ntdll/RtlCopyMappedMemory.c b/rostests/apitests/ntdll/RtlCopyMappedMemory.c
new file mode 100644
index 00000000000..5a8f3be13e1
--- /dev/null
+++ b/rostests/apitests/ntdll/RtlCopyMappedMemory.c
@@ -0,0 +1,35 @@
+/*
+ * PROJECT:         ReactOS api tests
+ * LICENSE:         LGPLv2.1+ - See COPYING.LIB in the top level directory
+ * PURPOSE:         Test for RtlCopyMappedMemory
+ * PROGRAMMERS:     Thomas Faber <thomas.faber@reactos.org>
+ */
+
+#include <apitest.h>
+
+#define WIN32_NO_STATUS
+#include <ndk/rtlfuncs.h>
+
+START_TEST(RtlCopyMappedMemory)
+{
+    NTSTATUS Status;
+    UCHAR Buffer1[32];
+    UCHAR Buffer2[32];
+    
+    StartSeh() RtlCopyMappedMemory(NULL, NULL, 1);      EndSeh(STATUS_ACCESS_VIOLATION);
+    StartSeh() RtlCopyMappedMemory(Buffer1, NULL, 1);   EndSeh(STATUS_ACCESS_VIOLATION);
+    StartSeh() RtlCopyMappedMemory(NULL, Buffer1, 1);   EndSeh(STATUS_ACCESS_VIOLATION);
+    
+    StartSeh()
+        Status = RtlCopyMappedMemory(NULL, NULL, 0);
+    EndSeh(STATUS_SUCCESS);
+    ok(Status == STATUS_SUCCESS, "RtlCopyMappedMemory returned %lx\n", Status);
+    
+    RtlFillMemory(Buffer1, sizeof(Buffer1), 0x11);
+    RtlFillMemory(Buffer2, sizeof(Buffer2), 0x22);
+    StartSeh()
+        Status = RtlCopyMappedMemory(Buffer1, Buffer2, sizeof(Buffer1));
+    EndSeh(STATUS_SUCCESS);
+    ok(Status == STATUS_SUCCESS, "RtlCopyMappedMemory returned %lx\n", Status);
+    ok(RtlCompareMemory(Buffer1, Buffer2, sizeof(Buffer1)) == sizeof(Buffer1), "Data not copied\n");
+}
diff --git a/rostests/apitests/ntdll/testlist.c b/rostests/apitests/ntdll/testlist.c
index 8c2406981a5..daefbaa5e1d 100644
--- a/rostests/apitests/ntdll/testlist.c
+++ b/rostests/apitests/ntdll/testlist.c
@@ -19,6 +19,7 @@ extern void func_NtQueryVolumeInformationFile(void);
 extern void func_NtSaveKey(void);
 extern void func_NtSystemInformation(void);
 extern void func_RtlBitmap(void);
+extern void func_RtlCopyMappedMemory(void);
 extern void func_RtlDetermineDosPathNameType(void);
 extern void func_RtlDoesFileExists(void);
 extern void func_RtlDosPathNameToNtPathName_U(void);
@@ -53,6 +54,7 @@ const struct test winetest_testlist[] =
     { "NtSaveKey",                      func_NtSaveKey},
     { "NtSystemInformation",            func_NtSystemInformation },
     { "RtlBitmapApi",                   func_RtlBitmap },
+    { "RtlCopyMappedMemory",            func_RtlCopyMappedMemory },
     { "RtlDetermineDosPathNameType",    func_RtlDetermineDosPathNameType },
     { "RtlDoesFileExists",              func_RtlDoesFileExists },
     { "RtlDosPathNameToNtPathName_U",   func_RtlDosPathNameToNtPathName_U },