mirror of
https://github.com/Feodor2/Mypal68.git
synced 2025-06-19 07:15:36 -04:00
86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#include "nsCRT.h"
|
|
#include "nsISupportsImpl.h"
|
|
#include "nsCheckSummedOutputStream.h"
|
|
#include "crc32c.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsCheckSummedOutputStream
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED(nsCheckSummedOutputStream, nsBufferedOutputStream,
|
|
nsISafeOutputStream)
|
|
|
|
NS_IMETHODIMP
|
|
nsCheckSummedOutputStream::Init(nsIOutputStream* stream, uint32_t bufferSize) {
|
|
nsresult rv;
|
|
mHash = do_CreateInstance(NS_CRYPTO_HASH_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
rv = mHash->Init(nsICryptoHash::MD5);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return nsBufferedOutputStream::Init(stream, bufferSize);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCheckSummedOutputStream::Finish() {
|
|
nsresult rv = mHash->Finish(false, mCheckSum);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
uint32_t written;
|
|
rv = nsBufferedOutputStream::Write(
|
|
reinterpret_cast<const char*>(mCheckSum.BeginReading()),
|
|
mCheckSum.Length(), &written);
|
|
NS_ASSERTION(written == mCheckSum.Length(), "Error writing stream checksum");
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return nsBufferedOutputStream::Finish();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCheckSummedOutputStream::Write(const char* buf, uint32_t count,
|
|
uint32_t* result) {
|
|
nsresult rv = mHash->Update(reinterpret_cast<const uint8_t*>(buf), count);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return nsBufferedOutputStream::Write(buf, count, result);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsCrc32CheckSumedOutputStream
|
|
NS_IMPL_ISUPPORTS_INHERITED(nsCrc32CheckSumedOutputStream,
|
|
nsBufferedOutputStream, nsISafeOutputStream)
|
|
|
|
NS_IMETHODIMP
|
|
nsCrc32CheckSumedOutputStream::Init(nsIOutputStream* stream,
|
|
uint32_t bufferSize) {
|
|
mCheckSum = ~0;
|
|
|
|
return nsBufferedOutputStream::Init(stream, bufferSize);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCrc32CheckSumedOutputStream::Finish() {
|
|
uint32_t written;
|
|
nsresult rv = nsBufferedOutputStream::Write(
|
|
reinterpret_cast<const char*>(&mCheckSum), sizeof(mCheckSum), &written);
|
|
NS_ASSERTION(written == sizeof(mCheckSum), "Error writing stream checksum");
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return nsBufferedOutputStream::Finish();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsCrc32CheckSumedOutputStream::Write(const char* buf, uint32_t count,
|
|
uint32_t* result) {
|
|
mCheckSum =
|
|
ComputeCrc32c(mCheckSum, reinterpret_cast<const uint8_t*>(buf), count);
|
|
|
|
return nsBufferedOutputStream::Write(buf, count, result);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|