83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Copyright (c) International Business Machines Corp., 2001
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* 07/2001 John George
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* -Ported
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* Copyright (c) Linux Test Project, 2002-2022
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*/
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/*\
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* [Description]
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*
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* check stat() with various error conditions that should produce
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* EACCES, EFAULT, ENAMETOOLONG, ENOENT, ENOTDIR, ELOOP
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*/
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#include <pwd.h>
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#include "tst_test.h"
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#define TST_EACCES_DIR "tst_eaccesdir"
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#define TST_EACCES_FILE "tst_eaccesdir/tst"
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#define TST_ENOENT "tst_enoent/tst"
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#define TST_ENOTDIR_DIR "tst_enotdir/tst"
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#define TST_ENOTDIR_FILE "tst_enotdir"
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#define MODE_RW 0666
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#define DIR_MODE 0755
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static struct passwd *ltpuser;
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static char long_dir[PATH_MAX + 2] = {[0 ... PATH_MAX + 1] = 'a'};
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static char loop_dir[PATH_MAX] = ".";
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static struct tcase{
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char *pathname;
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int exp_errno;
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} TC[] = {
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{TST_EACCES_FILE, EACCES},
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{NULL, EFAULT},
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{long_dir, ENAMETOOLONG},
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{TST_ENOENT, ENOENT},
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{TST_ENOTDIR_DIR, ENOTDIR},
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{loop_dir, ELOOP}
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};
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static void verify_stat(unsigned int n)
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{
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struct tcase *tc = TC + n;
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struct stat stat_buf;
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TST_EXP_FAIL(stat(tc->pathname, &stat_buf), tc->exp_errno);
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}
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static void setup(void)
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{
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unsigned int i;
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ltpuser = SAFE_GETPWNAM("nobody");
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SAFE_SETUID(ltpuser->pw_uid);
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SAFE_MKDIR(TST_EACCES_DIR, DIR_MODE);
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SAFE_TOUCH(TST_EACCES_FILE, DIR_MODE, NULL);
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SAFE_CHMOD(TST_EACCES_DIR, MODE_RW);
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for (i = 0; i < ARRAY_SIZE(TC); i++) {
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if (TC[i].exp_errno == EFAULT)
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TC[i].pathname = tst_get_bad_addr(NULL);
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}
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SAFE_TOUCH(TST_ENOTDIR_FILE, DIR_MODE, NULL);
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SAFE_MKDIR("test_eloop", DIR_MODE);
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SAFE_SYMLINK("../test_eloop", "test_eloop/test_eloop");
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for (i = 0; i < 43; i++)
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strcat(loop_dir, "/test_eloop");
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(TC),
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.needs_tmpdir = 1,
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.needs_root = 1,
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.setup = setup,
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.test = verify_stat,
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};
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