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LSPAnnotator.cpp
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LSPAnnotator.cpp
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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Kyle Huey <me@kylehuey.com>
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/**
* LSPs are evil little bits of code that are allowed to inject into our
* networking stack by Windows. Once they have wormed into our process
* they gnaw at our innards until we crash. Here we force the buggers
* into the light by recording them in our crash information.
* We do the enumeration on a thread because I'm concerned about startup perf
* on machines with several LSPs.
*/
#include "nsICrashReporter.h"
#include "nsISupportsImpl.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include <windows.h>
#include <Ws2spi.h>
namespace mozilla {
namespace crashreporter {
class LSPAnnotationGatherer : public nsRunnable
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIRUNNABLE
void Annotate();
nsCString mString;
nsCOMPtr<nsIThread> mThread;
};
NS_IMPL_THREADSAFE_ISUPPORTS1(LSPAnnotationGatherer, nsIRunnable)
void
LSPAnnotationGatherer::Annotate()
{
nsCOMPtr<nsICrashReporter> cr =
do_GetService("@mozilla.org/toolkit/crash-reporter;1");
bool enabled;
if (cr && NS_SUCCEEDED(cr->GetEnabled(&enabled)) && enabled) {
cr->AnnotateCrashReport(NS_LITERAL_CSTRING("Winsock_LSP"), mString);
}
mThread->Shutdown();
}
NS_IMETHODIMP
LSPAnnotationGatherer::Run()
{
mThread = NS_GetCurrentThread();
DWORD size = 0;
int err;
// Get the size of the buffer we need
if (SOCKET_ERROR != WSCEnumProtocols(NULL, NULL, &size, &err) ||
err != WSAENOBUFS) {
// Er, what?
NS_NOTREACHED("WSCEnumProtocols suceeded when it should have failed ...");
return NS_ERROR_FAILURE;
}
nsAutoArrayPtr<char> byteArray(new char[size]);
WSAPROTOCOL_INFOW* providers =
reinterpret_cast<WSAPROTOCOL_INFOW*>(byteArray.get());
int n = WSCEnumProtocols(NULL, providers, &size, &err);
if (n == SOCKET_ERROR) {
// Lame. We provided the right size buffer; we'll just give up now.
NS_WARNING("Could not get LSP list");
return NS_ERROR_FAILURE;
}
nsCString str;
for (int i = 0; i < n; i++) {
AppendUTF16toUTF8(nsDependentString(providers[i].szProtocol), str);
str.AppendLiteral(" : ");
str.AppendInt(providers[i].iVersion);
str.AppendLiteral(" : ");
str.AppendInt(providers[i].iSocketType);
str.AppendLiteral(" : ");
wchar_t path[MAX_PATH];
int dummy;
if (!WSCGetProviderPath(&providers[i].ProviderId, path,
&dummy, &err)) {
AppendUTF16toUTF8(nsDependentString(path), str);
}
if (i + 1 != n) {
str.AppendLiteral(" \n ");
}
}
mString = str;
NS_DispatchToMainThread(NS_NewRunnableMethod(this, &LSPAnnotationGatherer::Annotate));
return NS_OK;
}
void LSPAnnotate()
{
nsCOMPtr<nsIThread> thread;
nsCOMPtr<nsIRunnable> runnable =
do_QueryObject(new LSPAnnotationGatherer());
NS_NewThread(getter_AddRefs(thread), runnable);
}
} // namespace crashreporter
} // namespace mozilla