ipc/chromium/src/base/rand_util_posix.cc@b8a032363ba2 (annotated)
ipc/chromium/src/base/rand_util_posix.cc
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| 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 |
