dom/u2f/U2FUtil.h
author Gregory Szorc <gps@mozilla.com>
Thu, 09 Nov 2017 22:26:26 -0800
changeset 391814 1cd169ff8a0dbb2ea7d50b4275472ca9298765b3
parent 388518 cb123c84818a3c491fb9d63f00891d23f515cf6f
permissions -rw-r--r--
Bug 1416052 - Remove comment filtering; r=nalexander The auto-generated make file that we include (and the `mach environment` output that we included before that) should not contain comment lines. I think it is safe to remove the code that filters them out. It is possible a multi-line value in mozconfigs could contain lines looking like comments and this may cause problems. I'm inclined to believe that this scenario doesn't exist. If someone complains and we need to bring back support, we could certainly do that. MozReview-Commit-ID: 8kKw91HH4ms

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

#ifndef mozilla_dom_U2FUtil_h
#define mozilla_dom_U2FUtil_h

namespace mozilla {
namespace dom {

static nsresult
HashCString(nsICryptoHash* aHashService, const nsACString& aIn,
            /* out */ CryptoBuffer& aOut)
{
  MOZ_ASSERT(aHashService);

  nsresult rv = aHashService->Init(nsICryptoHash::SHA256);
  if (NS_WARN_IF(NS_FAILED(rv))) {
    return rv;
  }

  rv = aHashService->Update(
    reinterpret_cast<const uint8_t*>(aIn.BeginReading()), aIn.Length());
  if (NS_WARN_IF(NS_FAILED(rv))) {
    return rv;
  }

  nsAutoCString fullHash;
  // Passing false below means we will get a binary result rather than a
  // base64-encoded string.
  rv = aHashService->Finish(false, fullHash);
  if (NS_WARN_IF(NS_FAILED(rv))) {
    return rv;
  }

  aOut.Assign(fullHash);
  return rv;
}

} // namespace dom
} // namespace mozilla

#endif // mozilla_dom_U2FUtil_h