80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2014 Fujitsu Ltd.
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* Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
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*/
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/*\
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* [Description]
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*
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* Verify that readdir will fail with:
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*
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* - ENOENT when passed a fd to a deleted directory
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* - ENOTDIR when passed fd that does not point to a directory
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* - EBADFD when passed an invalid fd
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* - EFAULT when passed invalid buffer pointer
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*/
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#include <sys/stat.h>
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#include "tst_test.h"
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#include "lapi/syscalls.h"
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#include "lapi/readdir.h"
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#define TEST_DIR "test_dir"
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#define TEST_DIR4 "test_dir4"
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#define TEST_FILE "test_file"
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#define DIR_MODE 0755
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static unsigned int del_dir_fd, file_fd;
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static unsigned int invalid_fd = 999;
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static unsigned int dir_fd;
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static struct old_linux_dirent dirp;
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static struct tcase {
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unsigned int *fd;
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struct old_linux_dirent *dirp;
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unsigned int count;
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int exp_errno;
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char *desc;
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} tcases[] = {
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{&del_dir_fd, &dirp, sizeof(struct old_linux_dirent), ENOENT, "directory deleted"},
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{&file_fd, &dirp, sizeof(struct old_linux_dirent), ENOTDIR, "not a directory"},
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{&invalid_fd, &dirp, sizeof(struct old_linux_dirent), EBADF, "invalid fd"},
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{&dir_fd, (struct old_linux_dirent *)-1,
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sizeof(struct old_linux_dirent), EFAULT, "invalid buffer pointer"},
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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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SAFE_MKDIR(TEST_DIR, DIR_MODE);
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del_dir_fd = SAFE_OPEN(TEST_DIR, O_RDONLY | O_DIRECTORY);
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SAFE_RMDIR(TEST_DIR);
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file_fd = SAFE_OPEN(TEST_FILE, O_RDWR | O_CREAT, 0777);
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SAFE_MKDIR(TEST_DIR4, DIR_MODE);
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dir_fd = SAFE_OPEN(TEST_DIR4, O_RDONLY | O_DIRECTORY);
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for (i = 0; i < ARRAY_SIZE(tcases); i++) {
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if (tcases[i].exp_errno == EFAULT)
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tcases[i].dirp = tst_get_bad_addr(NULL);
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}
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}
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static void verify_readdir(unsigned int nr)
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{
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struct tcase *tc = &tcases[nr];
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TST_EXP_FAIL(tst_syscall(__NR_readdir, *tc->fd, tc->dirp, tc->count),
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tc->exp_errno, "readdir() with %s", tc->desc);
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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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.setup = setup,
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.test = verify_readdir,
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.needs_tmpdir = 1,
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};
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