* Copyright 2023, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#include <unistd.h>
#include <libroot/errno_private.h>
#include <random_defs.h>
#include <syscalls.h>
int
getentropy(void *buf, size_t buflen)
{
status_t status;
struct random_get_entropy_args args;
args.buffer = buf;
args.length = buflen;
status = _kern_generic_syscall(RANDOM_SYSCALLS, RANDOM_GET_ENTROPY,
&args, sizeof(args));
if (args.length < buflen)
status = EIO;
if (status < 0) {
__set_errno(status);
return -1;
}
return 0;
}
