84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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* Ported to LTP: Wayne Boyer
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* 06/2017 Modified by Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
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*/
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/*
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* DESCRIPTION
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* Open a file with oflag = O_CREAT set, does it set the sticky bit off?
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* Open a dir with O_DIRECTORY, does it set the S_IFDIR bit on?
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*
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* ALGORITHM
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* 1. open a new file with O_CREAT, fstat.st_mode should not have the
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* 01000 bit on. In Linux, the save text bit is *NOT* cleared.
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* 2. open a new dir with O_DIRECTORY, fstat.st_mode should have the
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* 040000 bit on.
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*/
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#define _GNU_SOURCE /* for O_DIRECTORY */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "tst_test.h"
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#define TEST_FILE "testfile"
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#define TEST_DIR "testdir"
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static int fd;
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static struct tcase {
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char *filename;
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int flag;
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mode_t mode;
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unsigned short tst_bit;
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char *desc;
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} tcases[] = {
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{TEST_FILE, O_RDWR | O_CREAT, 01444, S_ISVTX, "sticky bit"},
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{TEST_DIR, O_DIRECTORY, 0, S_IFDIR, "sirectory bit"}
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};
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static void verify_open(unsigned int n)
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{
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struct tcase *tc = &tcases[n];
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struct stat buf;
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TST_EXP_FD_SILENT(open(tc->filename, tc->flag, tc->mode),
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"open() with %s", tc->desc);
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if (!TST_PASS)
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return;
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fd = TST_RET;
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SAFE_FSTAT(fd, &buf);
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if (!(buf.st_mode & tc->tst_bit))
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tst_res(TFAIL, "%s is cleared unexpectedly", tc->desc);
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else
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tst_res(TPASS, "%s is set as expected", tc->desc);
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SAFE_CLOSE(fd);
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if (S_ISREG(buf.st_mode))
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SAFE_UNLINK(tc->filename);
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}
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static void setup(void)
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{
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SAFE_MKDIR(TEST_DIR, 0755);
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}
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static void cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tcases),
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.needs_tmpdir = 1,
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_open,
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};
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