From b039048ea9ff63731c6aa6a1f129303e07417a41 Mon Sep 17 00:00:00 2001
From: mingkuang <mingkuang@live.com>
Date: Sun, 1 Oct 2023 19:50:37 +0800
Subject: [PATCH] =?UTF-8?q?Fea=20#29=EF=BC=8CFindFirstFileEx=EF=BC=8C?=
 =?UTF-8?q?=E6=B7=BB=E5=8A=A0Windows=20XP=E3=80=81Vista=E5=85=BC=E5=AE=B9?=
 =?UTF-8?q?=20FIND=5FFIRST=5FEX=5FLARGE=5FFETCH=E3=80=81FindExInfoStandard?=
 =?UTF-8?q?=E5=8F=82=E6=95=B0=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ThunksList.md                       |  1 +
 src/Thunks/api-ms-win-core-file.hpp | 78 +++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)

diff --git a/ThunksList.md b/ThunksList.md
index 98e2e7f..aa94114 100644
--- a/ThunksList.md
+++ b/ThunksList.md
@@ -292,6 +292,7 @@
 | RtlCaptureStackBackTrace                   | 调用ntdll.RtlCaptureStackBackTrace。
 | SetFileCompletionNotificationModes         | 不存在时，什么也不做。
 | GetQueuedCompletionStatusEx                | 不存在时，调用 GetQueuedCompletionStatus，注意：丢失可警报状态支持。
+| FindFirstFileEx(W/A)                       | Windows XP、Vista兼容 FIND_FIRST_EX_LARGE_FETCH、FindExInfoStandard参数。
 
 ## mfplat.dll
 | 函数                                       | Fallback
diff --git a/src/Thunks/api-ms-win-core-file.hpp b/src/Thunks/api-ms-win-core-file.hpp
index dfb5ae2..027304f 100644
--- a/src/Thunks/api-ms-win-core-file.hpp
+++ b/src/Thunks/api-ms-win-core-file.hpp
@@ -1222,6 +1222,84 @@ namespace YY
 		}
 #endif
 
+#if (YY_Thunks_Support_Version < NTDDI_WIN7)
+
+		// 最低受支持的客户端	Windows XP [桌面应用 |UWP 应用]
+		// 最低受支持的服务器	Windows Server 2003[桌面应用 | UWP 应用]
+		__DEFINE_THUNK(
+		kernel32,
+		24,
+		HANDLE,
+		WINAPI,
+		FindFirstFileExW,
+			_In_ LPCWSTR lpFileName,
+			_In_ FINDEX_INFO_LEVELS fInfoLevelId,
+			_Out_writes_bytes_(sizeof(WIN32_FIND_DATAW)) LPVOID lpFindFileData,
+			_In_ FINDEX_SEARCH_OPS fSearchOp,
+			_Reserved_ LPVOID lpSearchFilter,
+			_In_ DWORD dwAdditionalFlags
+			)
+		{
+			if (const auto _pfnFindFirstFileExW = try_get_FindFirstFileExW())
+			{
+				const auto _uMajorVersion = ((TEB*)NtCurrentTeb())->ProcessEnvironmentBlock->OSMajorVersion;
+				const auto _uMinorVersion = ((TEB*)NtCurrentTeb())->ProcessEnvironmentBlock->OSMinorVersion;
+
+				if (internal::MakeVersion(_uMajorVersion, _uMinorVersion) < internal::MakeVersion(6, 1))
+				{
+					// dwAdditionalFlags : Windows 7开始才支持 FIND_FIRST_EX_LARGE_FETCH
+					dwAdditionalFlags &= (FIND_FIRST_EX_CASE_SENSITIVE | FIND_FIRST_EX_ON_DISK_ENTRIES_ONLY);
+					
+					// Windows 7开始才支持 FindExInfoBasic
+					fInfoLevelId = FindExInfoStandard;
+				}
+
+
+				return _pfnFindFirstFileExW(lpFileName, fInfoLevelId, lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
+			}
+
+			return FindFirstFileW(lpFileName, (WIN32_FIND_DATAW*)lpFindFileData);
+		}
+#endif
+
+#if (YY_Thunks_Support_Version < NTDDI_WIN7)
+
+		// 最低受支持的客户端	Windows XP [桌面应用 |UWP 应用]
+		// 最低受支持的服务器	Windows Server 2003[桌面应用 | UWP 应用]
+		__DEFINE_THUNK(
+		kernel32,
+		24,
+		HANDLE,
+		WINAPI,
+		FindFirstFileExA,
+			_In_ LPCSTR lpFileName,
+			_In_ FINDEX_INFO_LEVELS fInfoLevelId,
+			_Out_writes_bytes_(sizeof(WIN32_FIND_DATAA)) LPVOID lpFindFileData,
+			_In_ FINDEX_SEARCH_OPS fSearchOp,
+			_Reserved_ LPVOID lpSearchFilter,
+			_In_ DWORD dwAdditionalFlags
+			)
+		{
+			if (const auto _pfnFindFirstFileExA = try_get_FindFirstFileExA())
+			{
+				const auto _uMajorVersion = ((TEB*)NtCurrentTeb())->ProcessEnvironmentBlock->OSMajorVersion;
+				const auto _uMinorVersion = ((TEB*)NtCurrentTeb())->ProcessEnvironmentBlock->OSMinorVersion;
+
+				if (internal::MakeVersion(_uMajorVersion, _uMinorVersion) < internal::MakeVersion(6, 1))
+				{
+					// dwAdditionalFlags : Windows 7开始才支持 FIND_FIRST_EX_LARGE_FETCH
+					dwAdditionalFlags &= (FIND_FIRST_EX_CASE_SENSITIVE | FIND_FIRST_EX_ON_DISK_ENTRIES_ONLY);
+					
+					// Windows 7开始才支持 FindExInfoBasic
+					fInfoLevelId = FindExInfoStandard;
+				}
+
+				return _pfnFindFirstFileExA(lpFileName, fInfoLevelId, lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
+			}
+
+			return FindFirstFileA(lpFileName, (WIN32_FIND_DATAA*)lpFindFileData);
+		}
+#endif
 	}//namespace Thunks
 
 } //namespace YY
\ No newline at end of file