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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "platform/globals.h" | 5 #include "platform/globals.h" |
| 6 #if defined(TARGET_OS_MACOS) | 6 #if defined(TARGET_OS_MACOS) |
| 7 | 7 |
| 8 #include <errno.h> // NOLINT | 8 #include <errno.h> // NOLINT |
| 9 #include <fcntl.h> // NOLINT | 9 #include <fcntl.h> // NOLINT |
| 10 | 10 |
| 11 #include "bin/fdutils.h" | 11 #include "bin/fdutils.h" |
| 12 #include "bin/crypto.h" | 12 #include "bin/crypto.h" |
| 13 #include "platform/signal_blocker.h" | 13 #include "platform/signal_blocker.h" |
| 14 | 14 |
| 15 | 15 |
| 16 namespace dart { | 16 namespace dart { |
| 17 namespace bin { | 17 namespace bin { |
| 18 | 18 |
| 19 bool Crypto::GetRandomBytes(intptr_t count, uint8_t* buffer) { | 19 bool Crypto::GetRandomBytes(intptr_t count, uint8_t* buffer) { |
| 20 ThreadSignalBlocker signal_blocker(SIGPROF); | 20 ThreadSignalBlocker signal_blocker(SIGPROF); |
| 21 intptr_t fd = TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER( | 21 intptr_t fd = TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER( |
| 22 open("/dev/urandom", O_RDONLY)); | 22 open("/dev/urandom", O_RDONLY)); |
| 23 if (fd < 0) return false; | 23 if (fd < 0) { |
| 24 return false; |
| 25 } |
| 24 intptr_t bytes_read = 0; | 26 intptr_t bytes_read = 0; |
| 25 do { | 27 do { |
| 26 int res = TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER( | 28 int res = TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER( |
| 27 read(fd, buffer + bytes_read, count - bytes_read)); | 29 read(fd, buffer + bytes_read, count - bytes_read)); |
| 28 if (res < 0) { | 30 if (res < 0) { |
| 29 int err = errno; | 31 int err = errno; |
| 30 VOID_TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER(close(fd)); | 32 VOID_TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER(close(fd)); |
| 31 errno = err; | 33 errno = err; |
| 32 return false; | 34 return false; |
| 33 } | 35 } |
| 34 bytes_read += res; | 36 bytes_read += res; |
| 35 } while (bytes_read < count); | 37 } while (bytes_read < count); |
| 36 VOID_TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER(close(fd)); | 38 VOID_TEMP_FAILURE_RETRY_NO_SIGNAL_BLOCKER(close(fd)); |
| 37 return true; | 39 return true; |
| 38 } | 40 } |
| 39 | 41 |
| 40 } // namespace bin | 42 } // namespace bin |
| 41 } // namespace dart | 43 } // namespace dart |
| 42 | 44 |
| 43 #endif // defined(TARGET_OS_MACOS) | 45 #endif // defined(TARGET_OS_MACOS) |
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