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a16f7b0f6a
enum classes are in general safer than plain enums, and as such should be preferred. MozReview-Commit-ID: 1FK89SNhdk4 --HG-- extra : rebase_source : 764c4855026c02d8c9e33ca33637fec54ea5ca31
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsRandomGenerator.h"
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#include "ScopedNSSTypes.h"
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#include "nsNSSComponent.h"
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#include "pk11pub.h"
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#include "prerror.h"
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#include "secerr.h"
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NS_IMPL_ISUPPORTS(nsRandomGenerator, nsIRandomGenerator)
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NS_IMETHODIMP
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nsRandomGenerator::GenerateRandomBytes(uint32_t aLength,
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uint8_t** aBuffer)
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{
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NS_ENSURE_ARG_POINTER(aBuffer);
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*aBuffer = nullptr;
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nsNSSShutDownPreventionLock locker;
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if (isAlreadyShutDown()) {
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return NS_ERROR_NOT_AVAILABLE;
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}
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mozilla::UniquePK11SlotInfo slot(PK11_GetInternalSlot());
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if (!slot) {
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return NS_ERROR_FAILURE;
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}
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auto buf = static_cast<uint8_t*>(moz_xmalloc(aLength));
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if (!buf) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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SECStatus srv = PK11_GenerateRandomOnSlot(slot.get(), buf, aLength);
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if (srv != SECSuccess) {
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free(buf);
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return NS_ERROR_FAILURE;
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}
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*aBuffer = buf;
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return NS_OK;
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}
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nsRandomGenerator::~nsRandomGenerator()
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{
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nsNSSShutDownPreventionLock locker;
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if (isAlreadyShutDown()) {
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return;
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}
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shutdown(ShutdownCalledFrom::Object);
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}
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