50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/*
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* Check decoding of fchownat syscall.
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*
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* Copyright (c) 2016-2018 Dmitry V. Levin <ldv@altlinux.org>
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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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#include <fcntl.h>
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#if defined __NR_fchownat && defined AT_FDCWD && defined AT_SYMLINK_NOFOLLOW
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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 char sample[] = "fchownat_sample";
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uid_t uid = geteuid();
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uid_t gid = getegid();
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if (open(sample, O_RDONLY | O_CREAT, 0400) == -1)
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perror_msg_and_fail("open");
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long rc = syscall(__NR_fchownat, AT_FDCWD, sample, uid, gid, 0);
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printf("fchownat(AT_FDCWD, \"%s\", %d, %d, 0) = %s\n",
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sample, uid, gid, sprintrc(rc));
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if (unlink(sample))
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perror_msg_and_fail("unlink");
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rc = syscall(__NR_fchownat, AT_FDCWD,
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sample, -1, -1L, AT_SYMLINK_NOFOLLOW);
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printf("fchownat(AT_FDCWD, \"%s\", -1, -1, AT_SYMLINK_NOFOLLOW) = %s\n",
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sample, sprintrc(rc));
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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_fchownat && AT_FDCWD && AT_SYMLINK_NOFOLLOW")
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#endif
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