msvcrt: Add _mbsset_l implementation.

dlls/msvcr100/msvcr100.spec

@@ -1180,7 +1180,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)

dlls/msvcr110/msvcr110.spec

@@ -1537,7 +1537,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)

dlls/msvcr120/msvcr120.spec

@@ -1548,7 +1548,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)

dlls/msvcr80/msvcr80.spec

@@ -852,7 +852,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)

dlls/msvcr90/msvcr90.spec

@@ -830,7 +830,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)

dlls/msvcrt/mbcs.c

@@ -2205,27 +2205,45 @@ int CDECL _mbsbtype(const unsigned char *str, size_t count)
     return _mbsbtype_l(str, count, NULL);
 }
 
+
 /*********************************************************************
- *		_mbsset(MSVCRT.@)
+ *		_mbsset_l(MSVCRT.@)
  */
-unsigned char* CDECL _mbsset(unsigned char* str, unsigned int c)
+unsigned char* CDECL _mbsset_l(unsigned char* str, unsigned int c, _locale_t locale)
 {
-  unsigned char* ret = str;
+    unsigned char* ret = str;
+    pthreadmbcinfo mbcinfo;
 
-  if(!get_mbcinfo()->ismbcodepage || c < 256)
-    return u__strset(str, c); /* ASCII CP or SB char */
+    if (!MSVCRT_CHECK_PMT(str))
+        return NULL;
 
-  c &= 0xffff; /* Strip high bits */
+    if (locale)
+        mbcinfo = locale->mbcinfo;
+    else
+        mbcinfo = get_mbcinfo();
 
-  while(str[0] && str[1])
-  {
-    *str++ = c >> 8;
-    *str++ = c & 0xff;
-  }
-  if(str[0])
-    str[0] = '\0'; /* FIXME: OK to shorten? */
+    if (!mbcinfo->ismbcodepage || c < 256)
+        return u__strset(str, c); /* ASCII CP or SB char */
+
+    c &= 0xffff; /* Strip high bits */
 
-  return ret;
+    while (str[0] && str[1])
+    {
+        *str++ = c >> 8;
+        *str++ = c & 0xff;
+    }
+    if (str[0])
+        str[0] = '\0'; /* FIXME: OK to shorten? */
+
+    return ret;
+}
+
+/*********************************************************************
+ *		_mbsset(MSVCRT.@)
+ */
+unsigned char* CDECL _mbsset(unsigned char* str, unsigned int c)
+{
+    return _mbsset_l(str, c, NULL);
 }
 
 /*********************************************************************

dlls/msvcrt/msvcrt.spec

@@ -801,7 +801,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-# stub _mbsset_l(ptr long ptr)
+@ cdecl _mbsset_l(ptr long ptr)
 # stub _mbsset_s(ptr long long)
 # stub _mbsset_s_l(ptr long long ptr)
 @ cdecl _mbsspn(str str)

dlls/ucrtbase/ucrtbase.spec

@@ -696,7 +696,7 @@
 @ cdecl _mbsrev(str)
 @ cdecl _mbsrev_l(str ptr)
 @ cdecl _mbsset(ptr long)
-@ stub _mbsset_l
+@ cdecl _mbsset_l(ptr long ptr)
 @ stub _mbsset_s
 @ stub _mbsset_s_l
 @ cdecl _mbsspn(str str)
@@ -1265,7 +1265,7 @@
 @ cdecl _o__mbsrev(str) _mbsrev
 @ cdecl _o__mbsrev_l(str ptr) _mbsrev_l
 @ cdecl _o__mbsset(ptr long) _mbsset
-@ stub _o__mbsset_l
+@ cdecl _o__mbsset_l(ptr long ptr) _mbsset_l
 @ stub _o__mbsset_s
 @ stub _o__mbsset_s_l
 @ cdecl _o__mbsspn(str str) _mbsspn