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/*
* Check decoding of getrandom syscall.
*
* Copyright (c) 2015-2018 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2015-2023 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include "scno.h"
#include <stdio.h>
#include <unistd.h>
int
main(void)
{
unsigned char buf[4];
/*
* syscall/printf are in the inverted order to trigger tcache
* initialisation first see glibc-2.33.9000-879-gfc859c3.
*/
printf("getrandom(NULL, 0, 0) = 0\n");
if (syscall(__NR_getrandom, 0, 0, 0) != 0)
perror_msg_and_skip("getrandom(NULL, 0, 0)");
if (syscall(__NR_getrandom, buf, sizeof(buf) - 1, 0) != sizeof(buf) - 1)
perror_msg_and_skip("getrandom");
printf("getrandom(\"\\x%02x\\x%02x\\x%02x\", 3, 0) = 3\n",
(int) buf[0], (int) buf[1], (int) buf[2]);
if (syscall(__NR_getrandom, buf, sizeof(buf), 1) != sizeof(buf))
perror_msg_and_skip("getrandom");
printf("getrandom(\"\\x%02x\\x%02x\\x%02x\"..., 4, GRND_NONBLOCK) = 4\n",
(int) buf[0], (int) buf[1], (int) buf[2]);
if (syscall(__NR_getrandom, buf, sizeof(buf), 0x3003) != -1)
perror_msg_and_skip("getrandom");
printf("getrandom(%p, 4, GRND_NONBLOCK|GRND_RANDOM|0x3000)"
RVAL_EINVAL, buf);
puts("+++ exited with 0 +++");
return 0;
}
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