mirror of
https://github.com/dart-lang/sdk
synced 2024-09-15 23:29:47 +00:00
94fcf226fc
Fixes https://github.com/dart-lang/sdk/issues/41239 Change-Id: I397f70c7d9977bbf8ce33ce649c7d82e02fd26a7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151880 Reviewed-by: Ryan Macnak <rmacnak@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>
43 lines
1 KiB
C++
43 lines
1 KiB
C++
// 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(HOST_OS_MACOS)
|
|
|
|
#include <errno.h> // NOLINT
|
|
#include <fcntl.h> // NOLINT
|
|
|
|
#include "bin/crypto.h"
|
|
#include "bin/fdutils.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 | O_CLOEXEC));
|
|
if (fd < 0) {
|
|
return false;
|
|
}
|
|
intptr_t bytes_read = 0;
|
|
do {
|
|
int res =
|
|
TEMP_FAILURE_RETRY(read(fd, buffer + bytes_read, count - bytes_read));
|
|
if (res < 0) {
|
|
int err = errno;
|
|
close(fd);
|
|
errno = err;
|
|
return false;
|
|
}
|
|
bytes_read += res;
|
|
} while (bytes_read < count);
|
|
close(fd);
|
|
return true;
|
|
}
|
|
|
|
} // namespace bin
|
|
} // namespace dart
|
|
|
|
#endif // defined(HOST_OS_MACOS)
|