From ab1fc94a5bc38d00ba4fac7cbe50b06d35459349 Mon Sep 17 00:00:00 2001
From: Leonid Yuriev <leo@yuriev.ru>
Date: Sat, 8 May 2021 10:12:41 +0300
Subject: [PATCH] mdbx-windows: fix build for Windows XP/2000 (`_WIN32_WINNT` <
 0x0600).

Related to https://github.com/erthink/libmdbx/issues/155

Change-Id: Ibd795817e05b6da39ef270ce7b55b31d963d07b0
---
 .github/actions/spelling/expect.txt |  2 ++
 src/mdbx.c++                        |  7 +++++
 src/osal.c                          |  4 +++
 src/osal.h                          | 48 ++++++++++++++++++++++++++++-
 test/base.h                         |  3 ++
 5 files changed, 63 insertions(+), 1 deletion(-)

diff --git a/.github/actions/spelling/expect.txt b/.github/actions/spelling/expect.txt
index c26d3257..da1e08c8 100644
--- a/.github/actions/spelling/expect.txt
+++ b/.github/actions/spelling/expect.txt
@@ -832,6 +832,7 @@ LMEM
 LNK
 lnps
 lntdll
+LOBYTE
 localtime
 lockf
 lockfile
@@ -844,6 +845,7 @@ longlived
 LONGLONG
 lowerbound
 lowerboundvalue
+LOWORD
 LPCSTR
 LPDWORD
 LPFILETIME
diff --git a/src/mdbx.c++ b/src/mdbx.c++
index 676f0966..ce7a8ae3 100644
--- a/src/mdbx.c++
+++ b/src/mdbx.c++
@@ -216,6 +216,13 @@ template <> struct path_to_pchar<std::string> {
 
 #if defined(_WIN32) || defined(_WIN64)
 
+#ifndef WC_ERR_INVALID_CHARS
+static const DWORD WC_ERR_INVALID_CHARS =
+    (6 /* Windows Vista */ <= /* MajorVersion */ LOBYTE(LOWORD(GetVersion())))
+        ? 0x00000080
+        : 0;
+#endif /* WC_ERR_INVALID_CHARS */
+
 template <> struct path_to_pchar<std::wstring> {
   std::string str;
   path_to_pchar(const std::wstring &path) {
diff --git a/src/osal.c b/src/osal.c
index 0f03b850..08e0d687 100644
--- a/src/osal.c
+++ b/src/osal.c
@@ -133,6 +133,10 @@ typedef struct _FILE_PROVIDER_EXTERNAL_INFO_V1 {
   CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 196, METHOD_BUFFERED, FILE_ANY_ACCESS)
 #endif
 
+#ifndef ERROR_NOT_CAPABLE
+#define ERROR_NOT_CAPABLE 775L
+#endif
+
 #endif /* _WIN32 || _WIN64 */
 
 /*----------------------------------------------------------------------------*/
diff --git a/src/osal.h b/src/osal.h
index d31a254f..b7c476f2 100644
--- a/src/osal.h
+++ b/src/osal.h
@@ -145,7 +145,7 @@ __extern_C key_t ftok(const char *, int);
 #if defined(_WIN32) || defined(_WIN64)
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
-#endif
+#endif /* WIN32_LEAN_AND_MEAN */
 #include <excpt.h>
 #include <tlhelp32.h>
 #include <windows.h>
@@ -837,6 +837,52 @@ MDBX_INTERNAL_VAR MDBX_srwlock_function mdbx_srwlock_Init,
     mdbx_srwlock_AcquireShared, mdbx_srwlock_ReleaseShared,
     mdbx_srwlock_AcquireExclusive, mdbx_srwlock_ReleaseExclusive;
 
+#if _WIN32_WINNT < 0x0600 /* prior to Windows Vista */
+typedef enum _FILE_INFO_BY_HANDLE_CLASS {
+  FileBasicInfo,
+  FileStandardInfo,
+  FileNameInfo,
+  FileRenameInfo,
+  FileDispositionInfo,
+  FileAllocationInfo,
+  FileEndOfFileInfo,
+  FileStreamInfo,
+  FileCompressionInfo,
+  FileAttributeTagInfo,
+  FileIdBothDirectoryInfo,
+  FileIdBothDirectoryRestartInfo,
+  FileIoPriorityHintInfo,
+  FileRemoteProtocolInfo,
+  MaximumFileInfoByHandleClass
+} FILE_INFO_BY_HANDLE_CLASS,
+    *PFILE_INFO_BY_HANDLE_CLASS;
+
+typedef struct _FILE_END_OF_FILE_INFO {
+  LARGE_INTEGER EndOfFile;
+} FILE_END_OF_FILE_INFO, *PFILE_END_OF_FILE_INFO;
+
+#define REMOTE_PROTOCOL_INFO_FLAG_LOOPBACK 0x00000001
+#define REMOTE_PROTOCOL_INFO_FLAG_OFFLINE 0x00000002
+
+typedef struct _FILE_REMOTE_PROTOCOL_INFO {
+  USHORT StructureVersion;
+  USHORT StructureSize;
+  DWORD Protocol;
+  USHORT ProtocolMajorVersion;
+  USHORT ProtocolMinorVersion;
+  USHORT ProtocolRevision;
+  USHORT Reserved;
+  DWORD Flags;
+  struct {
+    DWORD Reserved[8];
+  } GenericReserved;
+  struct {
+    DWORD Reserved[16];
+  } ProtocolSpecificReserved;
+} FILE_REMOTE_PROTOCOL_INFO, *PFILE_REMOTE_PROTOCOL_INFO;
+
+#endif /* _WIN32_WINNT < 0x0600 (prior to Windows Vista) */
+
 typedef BOOL(WINAPI *MDBX_GetFileInformationByHandleEx)(
     _In_ HANDLE hFile, _In_ FILE_INFO_BY_HANDLE_CLASS FileInformationClass,
     _Out_ LPVOID lpFileInformation, _In_ DWORD dwBufferSize);
diff --git a/test/base.h b/test/base.h
index 18bbee91..be8e05e3 100644
--- a/test/base.h
+++ b/test/base.h
@@ -19,6 +19,9 @@
 #endif
 
 #if defined(_WIN32) || defined(_WIN64) || defined(_WINDOWS)
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0601 /* Windows 7 */
+#endif
 #ifdef _MSC_VER
 #define _CRT_SECURE_NO_WARNINGS
 #pragma warning(push, 1)