1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) International Business Machines Corp., 2001 4f08c3bdfSopenharmony_ci * Ported to LTP: Wayne Boyer 5f08c3bdfSopenharmony_ci */ 6f08c3bdfSopenharmony_ci 7f08c3bdfSopenharmony_ci/* 8f08c3bdfSopenharmony_ci * Testcase to check creat(2) fails with EACCES 9f08c3bdfSopenharmony_ci */ 10f08c3bdfSopenharmony_ci 11f08c3bdfSopenharmony_ci#include <stdio.h> 12f08c3bdfSopenharmony_ci#include <errno.h> 13f08c3bdfSopenharmony_ci#include <fcntl.h> 14f08c3bdfSopenharmony_ci#include <pwd.h> 15f08c3bdfSopenharmony_ci#include <sys/types.h> 16f08c3bdfSopenharmony_ci#include <sys/stat.h> 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#include "tst_test.h" 19f08c3bdfSopenharmony_ci 20f08c3bdfSopenharmony_ci#define DIRNAME "testdir" 21f08c3bdfSopenharmony_ci#define FILENAME DIRNAME"/file1" 22f08c3bdfSopenharmony_ci 23f08c3bdfSopenharmony_cistatic uid_t nobody_uid; 24f08c3bdfSopenharmony_ci 25f08c3bdfSopenharmony_cistatic struct tcase { 26f08c3bdfSopenharmony_ci const char *fname; 27f08c3bdfSopenharmony_ci} tcases[] = { 28f08c3bdfSopenharmony_ci {DIRNAME "/file"}, 29f08c3bdfSopenharmony_ci {FILENAME} 30f08c3bdfSopenharmony_ci}; 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_cistatic void child_fn(unsigned int i) 33f08c3bdfSopenharmony_ci{ 34f08c3bdfSopenharmony_ci SAFE_SETEUID(nobody_uid); 35f08c3bdfSopenharmony_ci 36f08c3bdfSopenharmony_ci TEST(creat(tcases[i].fname, 0444)); 37f08c3bdfSopenharmony_ci 38f08c3bdfSopenharmony_ci if (TST_RET != -1) { 39f08c3bdfSopenharmony_ci SAFE_UNLINK(tcases[i].fname); 40f08c3bdfSopenharmony_ci tst_res(TFAIL, "call succeeded unexpectedly"); 41f08c3bdfSopenharmony_ci return; 42f08c3bdfSopenharmony_ci } 43f08c3bdfSopenharmony_ci 44f08c3bdfSopenharmony_ci if (TST_ERR != EACCES) { 45f08c3bdfSopenharmony_ci tst_res(TFAIL | TTERRNO, "Expected EACCES"); 46f08c3bdfSopenharmony_ci return; 47f08c3bdfSopenharmony_ci } 48f08c3bdfSopenharmony_ci 49f08c3bdfSopenharmony_ci tst_res(TPASS, "call failed with EACCES as expected"); 50f08c3bdfSopenharmony_ci} 51f08c3bdfSopenharmony_ci 52f08c3bdfSopenharmony_cistatic void verify_creat(unsigned int i) 53f08c3bdfSopenharmony_ci{ 54f08c3bdfSopenharmony_ci if (SAFE_FORK() == 0) 55f08c3bdfSopenharmony_ci child_fn(i); 56f08c3bdfSopenharmony_ci} 57f08c3bdfSopenharmony_ci 58f08c3bdfSopenharmony_cistatic void setup(void) 59f08c3bdfSopenharmony_ci{ 60f08c3bdfSopenharmony_ci struct passwd *pw; 61f08c3bdfSopenharmony_ci int fd; 62f08c3bdfSopenharmony_ci 63f08c3bdfSopenharmony_ci pw = SAFE_GETPWNAM("nobody"); 64f08c3bdfSopenharmony_ci nobody_uid = pw->pw_uid; 65f08c3bdfSopenharmony_ci 66f08c3bdfSopenharmony_ci SAFE_MKDIR(DIRNAME, 0700); 67f08c3bdfSopenharmony_ci fd = SAFE_OPEN(FILENAME, O_RDWR | O_CREAT, 0444); 68f08c3bdfSopenharmony_ci SAFE_CLOSE(fd); 69f08c3bdfSopenharmony_ci} 70f08c3bdfSopenharmony_ci 71f08c3bdfSopenharmony_cistatic struct tst_test test = { 72f08c3bdfSopenharmony_ci .tcnt = ARRAY_SIZE(tcases), 73f08c3bdfSopenharmony_ci .test = verify_creat, 74f08c3bdfSopenharmony_ci .needs_tmpdir = 1, 75f08c3bdfSopenharmony_ci .needs_root = 1, 76f08c3bdfSopenharmony_ci .forks_child = 1, 77f08c3bdfSopenharmony_ci .setup = setup, 78f08c3bdfSopenharmony_ci}; 79