michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsRandomGenerator.h"
michael@0: #include "pk11pub.h"
michael@0: #include "secerr.h"
michael@0: #include "prerror.h"
michael@0: #include "nsNSSComponent.h"
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: //// nsRandomGenerator
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsRandomGenerator, nsIRandomGenerator)
michael@0: 
michael@0: ////////////////////////////////////////////////////////////////////////////////
michael@0: //// nsIRandomGenerator
michael@0: 
michael@0: /* void generateRandomBytes(in unsigned long aLength,
michael@0:                             [retval, array, size_is(aLength)] out octet aBuffer) */
michael@0: NS_IMETHODIMP
michael@0: nsRandomGenerator::GenerateRandomBytes(uint32_t aLength,
michael@0:                                        uint8_t **aBuffer)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aBuffer);
michael@0:   *aBuffer = nullptr;
michael@0: 
michael@0:   mozilla::ScopedPK11SlotInfo slot(PK11_GetInternalSlot());
michael@0:   if (!slot) {
michael@0:     return NS_ERROR_FAILURE;
michael@0:   }
michael@0: 
michael@0:   uint8_t *buf = reinterpret_cast<uint8_t *>(NS_Alloc(aLength));
michael@0:   if (!buf) {
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0:   }
michael@0: 
michael@0:   SECStatus srv = PK11_GenerateRandomOnSlot(slot, buf, aLength);
michael@0: 
michael@0:   if (SECSuccess != srv) {
michael@0:     NS_Free(buf);
michael@0:     return NS_ERROR_FAILURE;
michael@0:   }
michael@0: 
michael@0:   *aBuffer = buf;
michael@0: 
michael@0:   return NS_OK;
michael@0: }