ipc/chromium/src/base/rand_util_posix.cc@6474c204b198 (annotated)
ipc/chromium/src/base/rand_util_posix.cc
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Copyright (c) 2008 The Chromium Authors. All rights reserved. |
| michael@0 | 2 | // Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 3 | // found in the LICENSE file. |
| michael@0 | 4 | |
| michael@0 | 5 | #include "base/rand_util.h" |
| michael@0 | 6 | |
| michael@0 | 7 | #include <fcntl.h> |
| michael@0 | 8 | #include <unistd.h> |
| michael@0 | 9 | |
| michael@0 | 10 | #include "base/file_util.h" |
| michael@0 | 11 | #include "base/logging.h" |
| michael@0 | 12 | |
| michael@0 | 13 | namespace base { |
| michael@0 | 14 | |
| michael@0 | 15 | uint64_t RandUint64() { |
| michael@0 | 16 | uint64_t number; |
| michael@0 | 17 | |
| michael@0 | 18 | int urandom_fd = open("/dev/urandom", O_RDONLY); |
| michael@0 | 19 | CHECK(urandom_fd >= 0); |
| michael@0 | 20 | bool success = file_util::ReadFromFD(urandom_fd, |
| michael@0 | 21 | reinterpret_cast<char*>(&number), |
| michael@0 | 22 | sizeof(number)); |
| michael@0 | 23 | CHECK(success); |
| michael@0 | 24 | close(urandom_fd); |
| michael@0 | 25 | |
| michael@0 | 26 | return number; |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | } // namespace base |
