101 lines
2.3 KiB
C
101 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Copyright (c) 2018 FUJITSU LIMITED. All rights reserved.
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* Authors: Jinhui huang <huangjh.jy@cn.fujitsu.com>
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* Xiao Yang <yangx.jy@cn.fujitsu.com>
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*/
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/* Test Description:
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* This case checks the basic functionality of the execveat(2):
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* 1) When pathname is relative, it is relative to the directory where
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* the executed process is located and the dirfd is the descriptor of
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* the directory.
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* 2) When pathname is relative and dirfd is the special value AT_FDCWD,
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* the pathname is the relative to the current working directory of
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* the calling process.
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* 3) When pathname is absolute, dirfd can be ignored.
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* 4) When pathname is an empty string and the flag AT_EMPTY_PATH is
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* specified, dirfd specifies the file to be executed.
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*/
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#define _GNU_SOURCE
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#include "config.h"
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#include <stdio.h>
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#include <errno.h>
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#include "tst_test.h"
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#include "lapi/execveat.h"
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#include "lapi/fcntl.h"
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#include "execveat.h"
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#define TESTDIR "testdir"
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#define TEST_APP "execveat_child"
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#define TEST_REL_APP TESTDIR"/"TEST_APP
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static int fd1, fd4;
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static int fd2 = AT_FDCWD, fd3 = -1;
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static char app_abs_path[512];
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static struct tcase {
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int *fd;
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char *pathname;
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int flag;
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} tcases[] = {
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{&fd1, TEST_APP, 0},
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{&fd2, TEST_REL_APP, 0},
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{&fd3, app_abs_path, 0},
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{&fd4, "", AT_EMPTY_PATH},
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};
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static void verify_execveat(unsigned int i)
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{
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struct tcase *tc = &tcases[i];
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char *argv[2] = {TEST_APP, NULL};
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pid_t pid;
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pid = SAFE_FORK();
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if (pid == 0) {
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TEST(execveat(*tc->fd, tc->pathname, argv, environ, tc->flag));
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tst_res(TFAIL | TTERRNO, "execveat() returns unexpected errno");
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}
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}
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static void setup(void)
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{
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char cur_dir_path[512];
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check_execveat();
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SAFE_MKDIR(TESTDIR, 0777);
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SAFE_CP(TEST_APP, TEST_REL_APP);
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SAFE_GETCWD(cur_dir_path, sizeof(cur_dir_path));
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sprintf(app_abs_path, "%s/%s", cur_dir_path, TEST_REL_APP);
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fd1 = SAFE_OPEN(TESTDIR, O_DIRECTORY);
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fd4 = SAFE_OPEN(TEST_REL_APP, O_PATH);
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}
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static void cleanup(void)
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{
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if (fd1 > 0)
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SAFE_CLOSE(fd1);
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if (fd4 > 0)
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SAFE_CLOSE(fd4);
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}
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static const char *const resource_files[] = {
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TEST_APP,
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NULL,
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};
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static struct tst_test test = {
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.resource_files = resource_files,
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.tcnt = ARRAY_SIZE(tcases),
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.test = verify_execveat,
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.child_needs_reinit = 1,
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.forks_child = 1,
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.cleanup = cleanup,
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.setup = setup,
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};
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