[akhaldi] 68034: [KERNEL32] Apply Wine commit 80695cd by Akihiro Sagawa: Return correct buffer size when returning DBCS characters. CORE-9246

Author: akhaldi
Date: Sat Jun  6 12:25:23 2015
New Revision: 68034

URL: http://svn.reactos.org/svn/reactos?rev=68034&view=rev
Log:
[KERNEL32] Apply Wine commit 80695cd by Akihiro Sagawa: Return correct buffer size when returning DBCS characters. CORE-9246

Modified:
    trunk/reactos/dll/win32/kernel32/winnls/string/lcformat.c

Modified: trunk/reactos/dll/win32/kernel32/winnls/string/lcformat.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32/winnls/s...
==============================================================================
--- trunk/reactos/dll/win32/kernel32/winnls/string/lcformat.c	[iso-8859-1] (original)
+++ trunk/reactos/dll/win32/kernel32/winnls/string/lcformat.c	[iso-8859-1] Sat Jun  6 12:25:23 2015
@@ -2084,7 +2084,7 @@
 int WINAPI GetCalendarInfoA(LCID lcid, CALID Calendar, CALTYPE CalType,
    		    LPSTR lpCalData, int cchData, LPDWORD lpValue)
 {
-    int ret;
+    int ret, cchDataW = cchData;
     LPWSTR lpCalDataW = NULL;

if (NLS_IsUnicodeOnlyLcid(lcid))
@@ -2093,13 +2093,14 @@
       return 0;
     }

-    if (cchData &&
-        !(lpCalDataW = HeapAlloc(GetProcessHeap(), 0, cchData*sizeof(WCHAR))))
-      return 0;
-
-    ret = GetCalendarInfoW(lcid, Calendar, CalType, lpCalDataW, cchData, lpValue);
+    if (!cchData && !(CalType & CAL_RETURN_NUMBER))
+        cchDataW = GetCalendarInfoW(lcid, Calendar, CalType, NULL, 0, NULL);
+    if (!(lpCalDataW = HeapAlloc(GetProcessHeap(), 0, cchDataW*sizeof(WCHAR))))
+        return 0;
+
+    ret = GetCalendarInfoW(lcid, Calendar, CalType, lpCalDataW, cchDataW, lpValue);
     if(ret && lpCalDataW && lpCalData)
-      WideCharToMultiByte(CP_ACP, 0, lpCalDataW, -1, lpCalData, cchData, NULL, NULL);
+        ret = WideCharToMultiByte(CP_ACP, 0, lpCalDataW, -1, lpCalData, cchData, NULL, NULL);
     else if (CalType & CAL_RETURN_NUMBER)
         ret *= sizeof(WCHAR);
     HeapFree(GetProcessHeap(), 0, lpCalDataW);