[cwittich] 40561: don't crash on setupapi stringtable winetest

Author: cwittich
Date: Fri Apr 17 23:37:13 2009
New Revision: 40561

URL: http://svn.reactos.org/svn/reactos?rev=40561&view=rev
Log:
don't crash on setupapi stringtable winetest

Modified:
    trunk/reactos/dll/win32/setupapi/stringtable.c

Modified: trunk/reactos/dll/win32/setupapi/stringtable.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/setupapi/stringta...
==============================================================================
--- trunk/reactos/dll/win32/setupapi/stringtable.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/setupapi/stringtable.c [iso-8859-1] Fri Apr 17 23:37:13 2009
@@ -607,13 +607,14 @@
     PSTRING_TABLE pStringTable;
     DWORD i;

-    TRACE("%p %s %lx\n", (PVOID)hStringTable, debugstr_w(lpString), dwFlags);
+    TRACE("%p %s %x %p, %x\n", hStringTable, debugstr_w(lpString), dwFlags,
+          lpExtraData, lpReserved);

pStringTable = (PSTRING_TABLE)hStringTable;
     if (pStringTable == NULL)
     {
         ERR("Invalid hStringTable!\n");
-        return (DWORD)-1;
+        return ~0u;
     }

/* Search for existing string in the string table */
@@ -625,10 +626,12 @@
             {
                 if (!lstrcmpW(pStringTable->pSlots[i].pString, lpString))
                 {
-                    memcpy(lpExtraData,
-                           pStringTable->pSlots[i].pData,
-                           pStringTable->pSlots[i].dwSize);
-                    *lpReserved = 0;
+                    if (lpExtraData)
+                    {
+                        memcpy(lpExtraData,
+                               pStringTable->pSlots[i].pData,
+                               pStringTable->pSlots[i].dwSize);
+                    }
                     return i + 1;
                 }
             }
@@ -636,10 +639,12 @@
             {
                 if (!lstrcmpiW(pStringTable->pSlots[i].pString, lpString))
                 {
-                    memcpy(lpExtraData,
-                           pStringTable->pSlots[i].pData,
-                           pStringTable->pSlots[i].dwSize);
-                    *lpReserved = 0;
+                    if (lpExtraData)
+                    {
+                        memcpy(lpExtraData,
+                               pStringTable->pSlots[i].pData,
+                               pStringTable->pSlots[i].dwSize);
+                    }
                     return i + 1;
                 }
             }