blob: 4a95bddfa428e975e3f0dcb254bc114c9c89daad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
//===-- Linux implementation of getrandom ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/sys/random/getrandom.h"
#include "src/__support/OSUtil/linux/getrandom.h"
#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
#include "src/__support/common.h"
#include "src/__support/error_or.h"
#include "src/__support/libc_errno.h"
#include "src/__support/macros/config.h"
namespace LIBC_NAMESPACE_DECL {
LLVM_LIBC_FUNCTION(ssize_t, getrandom,
(void *buf, size_t buflen, unsigned int flags)) {
auto rand = internal::getrandom(buf, buflen, flags);
if (!rand.has_value()) {
libc_errno = static_cast<int>(rand.error());
return -1;
}
return rand.value();
}
} // namespace LIBC_NAMESPACE_DECL
|
