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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/net/service_providers_win.h"
#include <winsock2.h>
#include <Ws2spi.h>
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
void GetWinsockNamespaceProviders(
WinsockNamespaceProviderList* namespace_list) {
// Find out how just how much memory is needed. If we get the expected error,
// the memory needed is written to size.
DWORD size = 0;
if (WSAEnumNameSpaceProviders(&size, NULL) != SOCKET_ERROR ||
GetLastError() != WSAEFAULT) {
NOTREACHED();
return;
}
scoped_array<char> namespace_provider_bytes(new char[size]);
WSANAMESPACE_INFO* namespace_providers =
reinterpret_cast<WSANAMESPACE_INFO*>(namespace_provider_bytes.get());
int num_namespace_providers = WSAEnumNameSpaceProviders(&size,
namespace_providers);
if (num_namespace_providers == SOCKET_ERROR) {
NOTREACHED();
return;
}
for (int i = 0; i < num_namespace_providers; ++i) {
WinsockNamespaceProvider provider;
provider.name = namespace_providers[i].lpszIdentifier;
provider.active = TRUE == namespace_providers[i].fActive;
provider.version = namespace_providers[i].dwVersion;
provider.type = namespace_providers[i].dwNameSpace;
namespace_list->push_back(provider);
}
}
void GetWinsockLayeredServiceProviders(
WinsockLayeredServiceProviderList* service_list) {
// Find out how just how much memory is needed. If we get the expected error,
// the memory needed is written to size.
DWORD size = 0;
int error;
if (SOCKET_ERROR != WSCEnumProtocols(NULL, NULL, &size, &error) ||
error != WSAENOBUFS) {
NOTREACHED();
return;
}
scoped_array<char> service_provider_bytes(new char[size]);
WSAPROTOCOL_INFOW* service_providers =
reinterpret_cast<WSAPROTOCOL_INFOW*>(service_provider_bytes.get());
int num_service_providers = WSCEnumProtocols(NULL, service_providers, &size,
&error);
if (num_service_providers == SOCKET_ERROR) {
NOTREACHED();
return;
}
for (int i = 0; i < num_service_providers; ++i) {
WinsockLayeredServiceProvider service_provider;
service_provider.name = service_providers[i].szProtocol;
service_provider.version = service_providers[i].iVersion;
service_provider.socket_type = service_providers[i].iSocketType;
service_provider.socket_protocol = service_providers[i].iProtocol;
service_provider.chain_length = service_providers[i].ProtocolChain.ChainLen;
// TODO(mmenke): Add categories under Vista and later.
// http://msdn.microsoft.com/en-us/library/ms742239%28v=VS.85%29.aspx
wchar_t path[MAX_PATH];
int path_length = arraysize(path);
if (0 == WSCGetProviderPath(&service_providers[i].ProviderId, path,
&path_length, &error)) {
service_provider.path = path;
}
service_list->push_back(service_provider);
}
return;
}
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