1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* Copyright (c) International Business Machines Corp., 2001 3f08c3bdfSopenharmony_ci * 07/2001 John George 4f08c3bdfSopenharmony_ci * -Ported 5f08c3bdfSopenharmony_ci * Copyright (c) Linux Test Project, 2002-2022 6f08c3bdfSopenharmony_ci */ 7f08c3bdfSopenharmony_ci 8f08c3bdfSopenharmony_ci/*\ 9f08c3bdfSopenharmony_ci * [Description] 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * check stat() with various error conditions that should produce 12f08c3bdfSopenharmony_ci * EACCES, EFAULT, ENAMETOOLONG, ENOENT, ENOTDIR, ELOOP 13f08c3bdfSopenharmony_ci */ 14f08c3bdfSopenharmony_ci 15f08c3bdfSopenharmony_ci#include <pwd.h> 16f08c3bdfSopenharmony_ci#include "tst_test.h" 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#define TST_EACCES_DIR "tst_eaccesdir" 19f08c3bdfSopenharmony_ci#define TST_EACCES_FILE "tst_eaccesdir/tst" 20f08c3bdfSopenharmony_ci#define TST_ENOENT "tst_enoent/tst" 21f08c3bdfSopenharmony_ci#define TST_ENOTDIR_DIR "tst_enotdir/tst" 22f08c3bdfSopenharmony_ci#define TST_ENOTDIR_FILE "tst_enotdir" 23f08c3bdfSopenharmony_ci 24f08c3bdfSopenharmony_ci#define MODE_RW 0666 25f08c3bdfSopenharmony_ci#define DIR_MODE 0755 26f08c3bdfSopenharmony_ci 27f08c3bdfSopenharmony_cistatic struct passwd *ltpuser; 28f08c3bdfSopenharmony_ci 29f08c3bdfSopenharmony_cistatic char long_dir[PATH_MAX + 2] = {[0 ... PATH_MAX + 1] = 'a'}; 30f08c3bdfSopenharmony_cistatic char loop_dir[PATH_MAX] = "."; 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_cistatic struct tcase{ 33f08c3bdfSopenharmony_ci char *pathname; 34f08c3bdfSopenharmony_ci int exp_errno; 35f08c3bdfSopenharmony_ci} TC[] = { 36f08c3bdfSopenharmony_ci {TST_EACCES_FILE, EACCES}, 37f08c3bdfSopenharmony_ci {NULL, EFAULT}, 38f08c3bdfSopenharmony_ci {long_dir, ENAMETOOLONG}, 39f08c3bdfSopenharmony_ci {TST_ENOENT, ENOENT}, 40f08c3bdfSopenharmony_ci {TST_ENOTDIR_DIR, ENOTDIR}, 41f08c3bdfSopenharmony_ci {loop_dir, ELOOP} 42f08c3bdfSopenharmony_ci}; 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_cistatic void verify_stat(unsigned int n) 45f08c3bdfSopenharmony_ci{ 46f08c3bdfSopenharmony_ci struct tcase *tc = TC + n; 47f08c3bdfSopenharmony_ci struct stat stat_buf; 48f08c3bdfSopenharmony_ci 49f08c3bdfSopenharmony_ci TST_EXP_FAIL(stat(tc->pathname, &stat_buf), tc->exp_errno); 50f08c3bdfSopenharmony_ci} 51f08c3bdfSopenharmony_ci 52f08c3bdfSopenharmony_cistatic void setup(void) 53f08c3bdfSopenharmony_ci{ 54f08c3bdfSopenharmony_ci unsigned int i; 55f08c3bdfSopenharmony_ci 56f08c3bdfSopenharmony_ci ltpuser = SAFE_GETPWNAM("nobody"); 57f08c3bdfSopenharmony_ci SAFE_SETUID(ltpuser->pw_uid); 58f08c3bdfSopenharmony_ci 59f08c3bdfSopenharmony_ci SAFE_MKDIR(TST_EACCES_DIR, DIR_MODE); 60f08c3bdfSopenharmony_ci SAFE_TOUCH(TST_EACCES_FILE, DIR_MODE, NULL); 61f08c3bdfSopenharmony_ci SAFE_CHMOD(TST_EACCES_DIR, MODE_RW); 62f08c3bdfSopenharmony_ci 63f08c3bdfSopenharmony_ci for (i = 0; i < ARRAY_SIZE(TC); i++) { 64f08c3bdfSopenharmony_ci if (TC[i].exp_errno == EFAULT) 65f08c3bdfSopenharmony_ci TC[i].pathname = tst_get_bad_addr(NULL); 66f08c3bdfSopenharmony_ci } 67f08c3bdfSopenharmony_ci 68f08c3bdfSopenharmony_ci SAFE_TOUCH(TST_ENOTDIR_FILE, DIR_MODE, NULL); 69f08c3bdfSopenharmony_ci 70f08c3bdfSopenharmony_ci SAFE_MKDIR("test_eloop", DIR_MODE); 71f08c3bdfSopenharmony_ci SAFE_SYMLINK("../test_eloop", "test_eloop/test_eloop"); 72f08c3bdfSopenharmony_ci for (i = 0; i < 43; i++) 73f08c3bdfSopenharmony_ci strcat(loop_dir, "/test_eloop"); 74f08c3bdfSopenharmony_ci} 75f08c3bdfSopenharmony_ci 76f08c3bdfSopenharmony_cistatic struct tst_test test = { 77f08c3bdfSopenharmony_ci .tcnt = ARRAY_SIZE(TC), 78f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 79f08c3bdfSopenharmony_ci .needs_root = 1, 80f08c3bdfSopenharmony_ci .setup = setup, 81f08c3bdfSopenharmony_ci .test = verify_stat, 82f08c3bdfSopenharmony_ci}; 83