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comparison: ipc/chromium/src/base/rand_util_posix.cc
ipc/chromium/src/base/rand_util_posix.cc
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:b8faa2abeed0 |
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| 1 // Copyright (c) 2008 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "base/rand_util.h" | |
| 6 | |
| 7 #include <fcntl.h> | |
| 8 #include <unistd.h> | |
| 9 | |
| 10 #include "base/file_util.h" | |
| 11 #include "base/logging.h" | |
| 12 | |
| 13 namespace base { | |
| 14 | |
| 15 uint64_t RandUint64() { | |
| 16 uint64_t number; | |
| 17 | |
| 18 int urandom_fd = open("/dev/urandom", O_RDONLY); | |
| 19 CHECK(urandom_fd >= 0); | |
| 20 bool success = file_util::ReadFromFD(urandom_fd, | |
| 21 reinterpret_cast<char*>(&number), | |
| 22 sizeof(number)); | |
| 23 CHECK(success); | |
| 24 close(urandom_fd); | |
| 25 | |
| 26 return number; | |
| 27 } | |
| 28 | |
| 29 } // namespace base |
