| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "platform/globals.h" |
| #if defined(TARGET_OS_LINUX) |
| |
| #include <errno.h> // NOLINT |
| #include <fcntl.h> // NOLINT |
| |
| #include "bin/fdutils.h" |
| #include "bin/crypto.h" |
| #include "platform/signal_blocker.h" |
| |
| |
| namespace dart { |
| namespace bin { |
| |
| bool Crypto::GetRandomBytes(intptr_t count, uint8_t* buffer) { |
| intptr_t fd = TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY)); |
| if (fd < 0) return false; |
| intptr_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, count)); |
| VOID_TEMP_FAILURE_RETRY(close(fd)); |
| return bytes_read == count; |
| } |
| |
| } // namespace bin |
| } // namespace dart |
| |
| #endif // defined(TARGET_OS_LINUX) |
