BOOL
WSAAPI
WsNqBeginEnumerationProc(PVOID Context,
PNSCATALOG_ENTRY Entry)
{
PNS_PROVIDER Provider;
BOOLEAN GoOn = TRUE;
PENUM_CONTEXT EnumContext = (PENUM_CONTEXT)Context;
PNSQUERY NsQuery = EnumContext->NsQuery;
DWORD NamespaceId = Entry->NamespaceId;
/* Match the namespace ID, protocols and make sure it's enabled */
if ((((EnumContext->lpqsRestrictions->dwNameSpace == NamespaceId) ||
(EnumContext->lpqsRestrictions->dwNameSpace == NS_ALL)) &&
(!(EnumContext->lpqsRestrictions->dwNumberOfProtocols) ||
(WsNcMatchProtocols(NamespaceId,
Entry->AddressFamily,
EnumContext->lpqsRestrictions)))) &&
(Entry->Enabled))
{
/* Get the provider */
if (!(Provider = Entry->Provider))
{
/* None was laoded, load it */
if ((WsNcLoadProvider(EnumContext->Catalog, Entry) != ERROR_SUCCESS))
{
/* return fake success */
return TRUE;
}
/* Set the provider */
Provider = Entry->Provider;
}
/* Add it to the query */
if (!(WsNqAddProvider(NsQuery, Provider)))
{
/* We failed */
EnumContext->ErrorCode = WSASYSCALLFAILURE;
GoOn = FALSE;
}
}
/* Return to caller */
return GoOn;
}
INT
WSAAPI
WsNcGetCatalogFromProviderId(IN PNSCATALOG Catalog,
IN LPGUID ProviderId,
OUT PNSCATALOG_ENTRY *CatalogEntry)
{
PLIST_ENTRY NextEntry = Catalog->CatalogList.Flink;
PNSCATALOG_ENTRY Entry;
/* Lock the catalog */
WsNcLock();
/* Match the Id with all the entries in the List */
while (NextEntry != &Catalog->CatalogList)
{
/* Get the Current Entry */
Entry = CONTAINING_RECORD(NextEntry, NSCATALOG_ENTRY, CatalogLink);
NextEntry = NextEntry->Flink;
/* Check if this is the Catalog Entry ID we want */
if (!(memcmp(&Entry->ProviderId, ProviderId, sizeof(GUID))))
{
/* Check if it doesn't already have a provider */
if (!Entry->Provider)
{
/* Match, load the Provider */
WsNcLoadProvider(Catalog, Entry);
}
/* Reference the entry and return it */
InterlockedIncrement(&Entry->RefCount);
*CatalogEntry = Entry;
break;
}
}
/* Release the catalog */
WsNcUnlock();
/* Return */
return ERROR_SUCCESS;
}