From 76d33ee7f22829b9e7ba94989916e502fb81a84d Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Tue, 12 Mar 2024 09:12:40 +0200
Subject: [PATCH] [CRT] Add wcrtomb (from wine)

---
 dll/win32/msvcrt/msvcrt.spec      |  2 +-
 sdk/lib/crt/msvcrtex.cmake        |  1 +
 sdk/lib/crt/wstring/wcrtomb.c     | 32 +++++++++++++++++++++++++++++++
 sdk/lib/crt/wstring/wstring.cmake |  1 +
 4 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 sdk/lib/crt/wstring/wcrtomb.c

diff --git a/dll/win32/msvcrt/msvcrt.spec b/dll/win32/msvcrt/msvcrt.spec
index 52437e101fb..adbd3366137 100644
--- a/dll/win32/msvcrt/msvcrt.spec
+++ b/dll/win32/msvcrt/msvcrt.spec
@@ -1518,7 +1518,7 @@
 @ stub -version=0x600+ vswprintf_s
 @ cdecl vwprintf(wstr ptr)
 @ stub -version=0x600+ vwprintf_s
-@ stub -version=0x600+ wcrtomb
+@ cdecl -version=0x600+ wcrtomb(ptr long ptr)
 @ stub -version=0x600+ wcrtomb_s
 @ cdecl wcscat(wstr wstr)
 @ cdecl -version=0x600+ wcscat_s(wstr long wstr)
diff --git a/sdk/lib/crt/msvcrtex.cmake b/sdk/lib/crt/msvcrtex.cmake
index 545cfc98409..166f5645303 100644
--- a/sdk/lib/crt/msvcrtex.cmake
+++ b/sdk/lib/crt/msvcrtex.cmake
@@ -15,6 +15,7 @@ if(DLL_EXPORT_VERSION LESS 0x600)
         misc/dbgrpt.cpp
         stdlib/_invalid_parameter.c
         stdlib/rand_s.c
+        wstring/wcrtomb.c
     )
 endif()
 
diff --git a/sdk/lib/crt/wstring/wcrtomb.c b/sdk/lib/crt/wstring/wcrtomb.c
new file mode 100644
index 00000000000..574ee8e8501
--- /dev/null
+++ b/sdk/lib/crt/wstring/wcrtomb.c
@@ -0,0 +1,32 @@
+/*
+ * msvcrt.dll mbcs functions
+ *
+ * Copyright 1999 Alexandre Julliard
+ * Copyright 2000 Jon Griffths
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <precomp.h>
+
+/*********************************************************************
+ *              wcrtomb (MSVCRT.@)
+ */
+size_t CDECL wcrtomb( char *dst, wchar_t ch, mbstate_t *s)
+{
+    if(s)
+        *s = 0;
+    return wctomb(dst, ch);
+}
diff --git a/sdk/lib/crt/wstring/wstring.cmake b/sdk/lib/crt/wstring/wstring.cmake
index e636367cf11..8439a6ae181 100644
--- a/sdk/lib/crt/wstring/wstring.cmake
+++ b/sdk/lib/crt/wstring/wstring.cmake
@@ -11,6 +11,7 @@ list(APPEND LIBCNTPR_WSTRING_SOURCE
 
 list(APPEND CRT_WSTRING_SOURCE
     ${LIBCNTPR_WSTRING_SOURCE}
+    wstring/wcrtomb.c
     wstring/wcscoll.c
     wstring/wcstok.c
     wstring/wcsxfrm.c