[janderwald] 35591: - Use the name of the cpl as the mutex name - The mutex name is a unicode buffer, pass it to CreateMutexW function - fixes bug 3489

Author: janderwald
Date: Sun Aug 24 03:37:25 2008
New Revision: 35591

URL: http://svn.reactos.org/svn/reactos?rev=35591&view=rev
Log:
- Use the name of the cpl as the mutex name
- The mutex name is a unicode buffer, pass it to CreateMutexW function
- fixes bug 3489

Modified:
    trunk/reactos/dll/win32/shell32/control.c

Modified: trunk/reactos/dll/win32/shell32/control.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/shell32/control.…
==============================================================================
--- trunk/reactos/dll/win32/shell32/control.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/shell32/control.c [iso-8859-1] Sun Aug 24 03:37:25 2008
@@ -348,21 +348,34 @@
     LPWSTR	beg = NULL;
     LPWSTR	end;
     WCHAR	ch;
-    LPWSTR       ptr;
+    LPWSTR       ptr, ptr2;
+    WCHAR szName[MAX_PATH];
     unsigned 	sp = 0;
     LPWSTR	extraPmts = NULL;
     int        quoted = 0;
     BOOL	spSet = FALSE;
-	HANDLE hMutex;
-
-    hMutex = CreateMutex(NULL, FALSE, (LPCTSTR) wszCmd);
+    HANDLE hMutex;
+    UINT Length;
+
+    ptr = wcsrchr(wszCmd, L'\\');
+    ptr2 = wcsrchr(wszCmd, L',');
+    if (!ptr || !ptr2)
+        return;
+
+    Length = (ptr2 - ptr - 1);
+    if (Length >= MAX_PATH)
+        return;
+
+    memcpy(szName, ptr + 1, Length * sizeof(WCHAR));
+    szName[Length] = L'\0';
+    hMutex = CreateMutexW(NULL, FALSE, szName);
+
  	if ((!hMutex) || (GetLastError() == ERROR_ALREADY_EXISTS))
         return;
     buffer = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(wszCmd) + 1) * sizeof(*wszCmd));
     if (!buffer) return;
 
     end = lstrcpyW(buffer, wszCmd);
-
     for (;;) {
 	ch = *end;
         if (ch == '"') quoted = !quoted;