forked from mirrors/gecko-dev
92 lines
3.5 KiB
C++
92 lines
3.5 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Url Classifier code.
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*
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* The Initial Developer of the Original Code is
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* the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Gian-Carlo Pascutto <gpascutto@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsILocalFile.h"
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#include "nsCRT.h"
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#include "nsIFile.h"
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#include "nsISupportsImpl.h"
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#include "nsCheckSummedOutputStream.h"
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////////////////////////////////////////////////////////////////////////////////
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// nsCheckSummedOutputStream
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NS_IMPL_ISUPPORTS_INHERITED3(nsCheckSummedOutputStream,
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nsSafeFileOutputStream,
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nsISafeOutputStream,
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nsIOutputStream,
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nsIFileOutputStream)
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NS_IMETHODIMP
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nsCheckSummedOutputStream::Init(nsIFile* file, PRInt32 ioFlags, PRInt32 perm,
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PRInt32 behaviorFlags)
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{
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nsresult rv;
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mHash = do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = mHash->Init(nsICryptoHash::MD5);
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NS_ENSURE_SUCCESS(rv, rv);
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return nsSafeFileOutputStream::Init(file, ioFlags, perm, behaviorFlags);
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}
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NS_IMETHODIMP
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nsCheckSummedOutputStream::Finish()
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{
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nsresult rv = mHash->Finish(false, mCheckSum);
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NS_ENSURE_SUCCESS(rv, rv);
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PRUint32 written;
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rv = nsSafeFileOutputStream::Write(reinterpret_cast<const char*>(mCheckSum.BeginReading()),
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mCheckSum.Length(), &written);
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NS_ASSERTION(written == mCheckSum.Length(), "Error writing stream checksum");
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NS_ENSURE_SUCCESS(rv, rv);
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return nsSafeFileOutputStream::Finish();
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}
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NS_IMETHODIMP
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nsCheckSummedOutputStream::Write(const char *buf, PRUint32 count, PRUint32 *result)
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{
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nsresult rv = mHash->Update(reinterpret_cast<const uint8*>(buf), count);
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NS_ENSURE_SUCCESS(rv, rv);
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return nsSafeFileOutputStream::Write(buf, count, result);
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}
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////////////////////////////////////////////////////////////////////////////////
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