1f08c3bdfSopenharmony_ci// SPDX-License-Identifier: GPL-2.0-or-later 2f08c3bdfSopenharmony_ci/* 3f08c3bdfSopenharmony_ci * Copyright (c) International Business Machines Corp., 2001 4f08c3bdfSopenharmony_ci * 07/2001 Ported by Wayne Boyer 5f08c3bdfSopenharmony_ci * Copyright (c) 2023 SUSE LLC Avinesh Kumar <avinesh.kumar@suse.com> 6f08c3bdfSopenharmony_ci */ 7f08c3bdfSopenharmony_ci 8f08c3bdfSopenharmony_ci/*\ 9f08c3bdfSopenharmony_ci * [Description] 10f08c3bdfSopenharmony_ci * 11f08c3bdfSopenharmony_ci * verify that, mmap() calls fails with errno EBADF when a file mapping 12f08c3bdfSopenharmony_ci * is requested but the fd is not a valid file descriptor. 13f08c3bdfSopenharmony_ci */ 14f08c3bdfSopenharmony_ci 15f08c3bdfSopenharmony_ci#include <stdlib.h> 16f08c3bdfSopenharmony_ci#include "tst_test.h" 17f08c3bdfSopenharmony_ci 18f08c3bdfSopenharmony_ci#define TEMPFILE "mmapfile" 19f08c3bdfSopenharmony_cistatic size_t page_sz; 20f08c3bdfSopenharmony_cistatic int fd; 21f08c3bdfSopenharmony_ci 22f08c3bdfSopenharmony_cistatic void setup(void) 23f08c3bdfSopenharmony_ci{ 24f08c3bdfSopenharmony_ci fd = SAFE_OPEN(TEMPFILE, O_RDWR | O_CREAT, 0666); 25f08c3bdfSopenharmony_ci SAFE_CLOSE(fd); 26f08c3bdfSopenharmony_ci} 27f08c3bdfSopenharmony_ci 28f08c3bdfSopenharmony_cistatic void run(void) 29f08c3bdfSopenharmony_ci{ 30f08c3bdfSopenharmony_ci TESTPTR(mmap(NULL, page_sz, PROT_WRITE, MAP_FILE | MAP_SHARED, fd, 0)); 31f08c3bdfSopenharmony_ci 32f08c3bdfSopenharmony_ci if (TST_RET_PTR != MAP_FAILED) { 33f08c3bdfSopenharmony_ci tst_res(TFAIL, "mmap() passed unexpectedly"); 34f08c3bdfSopenharmony_ci SAFE_MUNMAP(TST_RET_PTR, page_sz); 35f08c3bdfSopenharmony_ci } else if (TST_ERR == EBADF) { 36f08c3bdfSopenharmony_ci tst_res(TPASS, "mmap() failed with EBADF"); 37f08c3bdfSopenharmony_ci } else { 38f08c3bdfSopenharmony_ci tst_res(TFAIL | TERRNO, "mmap() failed with an invalid errno"); 39f08c3bdfSopenharmony_ci } 40f08c3bdfSopenharmony_ci} 41f08c3bdfSopenharmony_ci 42f08c3bdfSopenharmony_cistatic void cleanup(void) 43f08c3bdfSopenharmony_ci{ 44f08c3bdfSopenharmony_ci if (fd > 0) 45f08c3bdfSopenharmony_ci SAFE_CLOSE(fd); 46f08c3bdfSopenharmony_ci} 47f08c3bdfSopenharmony_ci 48f08c3bdfSopenharmony_cistatic struct tst_test test = { 49f08c3bdfSopenharmony_ci .setup = setup, 50f08c3bdfSopenharmony_ci .cleanup = cleanup, 51f08c3bdfSopenharmony_ci .test_all = run, 52f08c3bdfSopenharmony_ci .needs_tmpdir = 1 53f08c3bdfSopenharmony_ci}; 54