From d5286af2e1edfa9604b00b45d9be0816a5131b2b Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Thu, 8 May 2025 12:39:58 +0300
Subject: [PATCH] [NTDLL_VISTA] Export RtlLcidToLocaleName and
 RtlLocaleNameToLcid

---
 dll/ntdll/nt_0600/DllMain.c        | 12 ++++++++++++
 dll/ntdll/nt_0600/ntdll_vista.spec |  2 ++
 sdk/lib/rtl/CMakeLists.txt         |  1 +
 3 files changed, 15 insertions(+)

diff --git a/dll/ntdll/nt_0600/DllMain.c b/dll/ntdll/nt_0600/DllMain.c
index 38a0d448916..97b92e61e83 100644
--- a/dll/ntdll/nt_0600/DllMain.c
+++ b/dll/ntdll/nt_0600/DllMain.c
@@ -1,15 +1,27 @@
 #include "ntdll_vista.h"
 
+NTSTATUS
+NTAPI
+RtlpInitializeLocaleTable(VOID);
+
 BOOL
 WINAPI
 DllMain(HANDLE hDll,
         DWORD dwReason,
         LPVOID lpReserved)
 {
+    NTSTATUS Status;
+
     if (dwReason == DLL_PROCESS_ATTACH)
     {
         LdrDisableThreadCalloutsForDll(hDll);
         RtlpInitializeKeyedEvent();
+        Status = RtlpInitializeLocaleTable();
+        if (!NT_SUCCESS(Status))
+        {
+            RtlpCloseKeyedEvent();
+            return FALSE;
+        }
     }
     else if (dwReason == DLL_PROCESS_DETACH)
     {
diff --git a/dll/ntdll/nt_0600/ntdll_vista.spec b/dll/ntdll/nt_0600/ntdll_vista.spec
index 2bf9f747a00..239726eb453 100644
--- a/dll/ntdll/nt_0600/ntdll_vista.spec
+++ b/dll/ntdll/nt_0600/ntdll_vista.spec
@@ -18,3 +18,5 @@
 
 @ stdcall RtlConnectToSm(ptr ptr long ptr) SmConnectToSm
 @ stdcall RtlSendMsgToSm(ptr ptr) SmSendMsgToSm
+@ stdcall RtlLcidToLocaleName(long ptr long long)
+@ stdcall RtlLocaleNameToLcid(wstr ptr long)
diff --git a/sdk/lib/rtl/CMakeLists.txt b/sdk/lib/rtl/CMakeLists.txt
index 688d9258587..db9a3c66f84 100644
--- a/sdk/lib/rtl/CMakeLists.txt
+++ b/sdk/lib/rtl/CMakeLists.txt
@@ -132,6 +132,7 @@ add_dependencies(rtl psdk asm)
 
 list(APPEND SOURCE_VISTA
     condvar.c
+    locale.c
     runonce.c
     srw.c
     utf8.c)