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