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shdocvw: Rewrite code to make more understandable (Coverity).

This commit is contained in:
Marcus Meissner 2011-03-02 12:30:04 +01:00 committed by Alexandre Julliard
parent 4c6e57654f
commit f90b5bfe73
1 changed files with 6 additions and 7 deletions
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13
dlls/shdocvw/shlinstobj.c
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@ -375,16 +375,15 @@ HRESULT SHDOCVW_GetShellInstanceObjectClassObject(REFCLSID rclsid, REFIID riid,
ppvClassObj);
/* Figure if there is an 'Instance' subkey for the given CLSID and acquire a handle. */
if (!StringFromGUID2(rclsid, wszInstanceKey + 6, CHARS_IN_GUID) ||
!(wszInstanceKey[5+CHARS_IN_GUID]='\\') || /* Repair the null-termination. */
ERROR_SUCCESS != RegOpenKeyExW(HKEY_CLASSES_ROOT, wszInstanceKey, 0, KEY_READ, &hInstanceKey))
{
if (!StringFromGUID2(rclsid, wszInstanceKey + 6, CHARS_IN_GUID))
return CLASS_E_CLASSNOTAVAILABLE;
wszInstanceKey[5+CHARS_IN_GUID] = '\\'; /* Repair the null-termination. */
if (ERROR_SUCCESS != RegOpenKeyExW(HKEY_CLASSES_ROOT, wszInstanceKey, 0, KEY_READ, &hInstanceKey))
/* If there is no 'Instance' subkey, then it's not a Shell Instance Object. */
return CLASS_E_CLASSNOTAVAILABLE;
}
if (RegQueryValueExW(hInstanceKey, wszCLSID, NULL, &dwType, (LPBYTE)wszCLSIDInstance, &cbBytes)
!= ERROR_SUCCESS || FAILED(CLSIDFromString(wszCLSIDInstance, &clsidInstance)))
if (ERROR_SUCCESS != RegQueryValueExW(hInstanceKey, wszCLSID, NULL, &dwType, (LPBYTE)wszCLSIDInstance, &cbBytes) ||
FAILED(CLSIDFromString(wszCLSIDInstance, &clsidInstance)))
{
/* 'Instance' should have a 'CLSID' value with a well-formed clsid-string. */
FIXME("Failed to infer instance CLSID! %s\n", debugstr_w(wszCLSIDInstance));