[cwittich] 26379: fix crash in VerQueryValueA/W

Author: cwittich
Date: Tue Apr 17 22:58:58 2007
New Revision: 26379

URL: http://svn.reactos.org/svn/reactos?rev=26379&view=rev
Log:
fix crash in VerQueryValueA/W

Modified:
    trunk/reactos/dll/win32/version/info.c
    trunk/reactos/include/psdk/winver.h

Modified: trunk/reactos/dll/win32/version/info.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/version/info.c?re...
==============================================================================
--- trunk/reactos/dll/win32/version/info.c (original)
+++ trunk/reactos/dll/win32/version/info.c Tue Apr 17 22:58:58 2007
@@ -764,7 +764,7 @@
 /***********************************************************************
  *           VerQueryValueA              [VERSION.@]
  */
-BOOL WINAPI VerQueryValueA( LPVOID pBlock, LPSTR lpSubBlock,
+BOOL WINAPI VerQueryValueA( LPVOID pBlock, LPCSTR lpSubBlock,
                                LPVOID *lplpBuffer, UINT *puLen )
 {
     static const char rootA[] = "\";
@@ -773,6 +773,9 @@

TRACE("(%p,%s,%p,%p)\n",
                 pBlock, debugstr_a(lpSubBlock), lplpBuffer, puLen );
+
+	if (!pBlock)
+		return FALSE;

if ( !VersionInfoIs16( info ) )
     {
@@ -811,7 +814,7 @@
 /***********************************************************************
  *           VerQueryValueW              [VERSION.@]
  */
-BOOL WINAPI VerQueryValueW( LPVOID pBlock, LPWSTR lpSubBlock,
+BOOL WINAPI VerQueryValueW( LPVOID pBlock, LPCWSTR lpSubBlock,
                                LPVOID *lplpBuffer, UINT *puLen )
 {
     static const WCHAR rootW[] = { '\', 0 };
@@ -822,6 +825,9 @@

TRACE("(%p,%s,%p,%p)\n",
                 pBlock, debugstr_w(lpSubBlock), lplpBuffer, puLen );
+
+	if (!pBlock)
+		return FALSE;

if ( VersionInfoIs16( info ) )
     {

Modified: trunk/reactos/include/psdk/winver.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/psdk/winver.h?rev=2...
==============================================================================
--- trunk/reactos/include/psdk/winver.h (original)
+++ trunk/reactos/include/psdk/winver.h Tue Apr 17 22:58:58 2007
@@ -108,8 +108,8 @@
 BOOL WINAPI GetFileVersionInfoW(LPCWSTR,DWORD,DWORD,PVOID);
 DWORD WINAPI VerLanguageNameA(DWORD,LPSTR,DWORD);
 DWORD WINAPI VerLanguageNameW(DWORD,LPWSTR,DWORD);
-BOOL WINAPI VerQueryValueA(const LPVOID,LPSTR,LPVOID*,PUINT);
-BOOL WINAPI VerQueryValueW(const LPVOID,LPWSTR,LPVOID*,PUINT);
+BOOL WINAPI VerQueryValueA(const LPVOID,LPCSTR,LPVOID*,PUINT);
+BOOL WINAPI VerQueryValueW(const LPVOID,LPCWSTR,LPVOID*,PUINT);
 #ifdef UNICODE
 #define VerFindFile VerFindFileW
 #define VerQueryValue VerQueryValueW