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/* 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 "nsRandomGenerator.h"
#include "ScopedNSSTypes.h"
#include "nsNSSComponent.h"
#include "pk11pub.h"
#include "prerror.h"
#include "secerr.h"
NS_IMPL_ISUPPORTS(nsRandomGenerator, nsIRandomGenerator)
NS_IMETHODIMP
nsRandomGenerator::GenerateRandomBytes(uint32_t aLength,
uint8_t** aBuffer)
{
NS_ENSURE_ARG_POINTER(aBuffer);
*aBuffer = nullptr;
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return NS_ERROR_NOT_AVAILABLE;
}
mozilla::UniquePK11SlotInfo slot(PK11_GetInternalSlot());
if (!slot) {
return NS_ERROR_FAILURE;
}
auto buf = static_cast<uint8_t*>(moz_xmalloc(aLength));
if (!buf) {
return NS_ERROR_OUT_OF_MEMORY;
}
SECStatus srv = PK11_GenerateRandomOnSlot(slot.get(), buf, aLength);
if (srv != SECSuccess) {
free(buf);
return NS_ERROR_FAILURE;
}
*aBuffer = buf;
return NS_OK;
}
nsRandomGenerator::~nsRandomGenerator()
{
nsNSSShutDownPreventionLock locker;
if (isAlreadyShutDown()) {
return;
}
shutdown(ShutdownCalledFrom::Object);
}
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