67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
/*
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* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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* Copyright (c) 2017-2018 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_ustat
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# include <stdio.h>
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# include <sys/stat.h>
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# include <sys/sysmacros.h>
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# include <unistd.h>
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# ifdef HAVE_USTAT_H
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# include <ustat.h>
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# endif
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int
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main(void)
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{
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const kernel_ulong_t magic = (kernel_ulong_t) 0xfacefeedffffffff;
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unsigned long long buf[4];
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unsigned int dev;
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long rc;
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# ifdef HAVE_USTAT_H
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TAIL_ALLOC_OBJECT_CONST_PTR(struct ustat, ust);
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struct stat st;
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if (stat(".", &st))
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perror_msg_and_fail("stat");
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dev = (unsigned int) st.st_dev;
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rc = syscall(__NR_ustat, dev, ust);
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if (rc)
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printf("ustat(makedev(%#x, %#x), %p) = %s\n",
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major(dev), minor(dev), ust, sprintrc(rc));
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else
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printf("ustat(makedev(%#x, %#x)"
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", {f_tfree=%llu, f_tinode=%llu}) = 0\n",
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major(dev), minor(dev),
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zero_extend_signed_to_ull(ust->f_tfree),
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zero_extend_signed_to_ull(ust->f_tinode));
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# endif /* HAVE_USTAT_H */
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dev = (unsigned int) magic;
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rc = syscall(__NR_ustat, magic, 0);
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printf("ustat(makedev(%#x, %#x), NULL) = %s\n",
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major(dev), minor(dev), sprintrc(rc));
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rc = syscall(__NR_ustat, magic, buf);
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printf("ustat(makedev(%#x, %#x), %p) = %s\n",
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major(dev), minor(dev), buf, 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_ustat")
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#endif
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