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/*
* Check decoding of unshare syscall.
*
* Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
* Copyright (c) 2016-2018 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <asm/unistd.h>
#ifdef __NR_unshare
# include <stdio.h>
# include <unistd.h>
int
main(void)
{
static const kernel_ulong_t bogus_flags =
(kernel_ulong_t) 0xbadc0ded0000000fULL;
static struct {
kernel_ulong_t val;
const char *str;
} unshare_flags[] = {
{ ARG_STR(0) },
{ 0xdeadca75,
"CLONE_THREAD|CLONE_FS|CLONE_SIGHAND|CLONE_SYSVSEM|"
"CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET|CLONE_NEWUSER|"
"CLONE_NEWCGROUP|0x80a8c075" },
{ 0x2000000, "CLONE_NEWCGROUP" },
{ ARG_STR(0x81f8f0ff) " /* CLONE_??? */" },
};
long rc;
unsigned int i;
rc = syscall(__NR_unshare, bogus_flags);
printf("unshare(%#llx /* CLONE_??? */) = %s\n",
(unsigned long long) bogus_flags, sprintrc(rc));
for (i = 0; i < ARRAY_SIZE(unshare_flags); i++) {
rc = syscall(__NR_unshare, unshare_flags[i].val);
printf("unshare(%s) = %s\n",
unshare_flags[i].str, sprintrc(rc));
}
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("__NR_unshare");
#endif
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