1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2018 Linux Test Project
4 * Copyright (c) 2015 Cyril Hrubis <chrubis@suse.cz>
5 * Copyright (c) International Business Machines Corp., 2001
6 *
7 * Ported to LTP: Wayne Boyer
8 * 04/2008 Roy Lee <roylee@andestech.com>
9 */
10
11 /*
12 * Attempt to execve(2) a file which is being opened by another process for
13 * writing fails with ETXTBSY.
14 */
15
16 #ifndef _GNU_SOURCE
17 #define _GNU_SOURCE
18 #endif
19 #include <sys/types.h>
20 #include <sys/wait.h>
21 #include <errno.h>
22 #include <fcntl.h>
23 #include <libgen.h>
24 #include <stdio.h>
25 #include <unistd.h>
26 #include <stdlib.h>
27
28 #include "tst_test.h"
29
30 #define TEST_APP "execve_child"
31
32 static void do_child(void);
33
verify_execve(void)34 static void verify_execve(void)
35 {
36 pid_t pid;
37 char *argv[2] = {TEST_APP, NULL};
38
39 pid = SAFE_FORK();
40 if (pid == 0)
41 do_child();
42
43 TST_CHECKPOINT_WAIT(0);
44
45 TEST(execve(TEST_APP, argv, environ));
46
47 if (TST_ERR != ETXTBSY)
48 tst_res(TFAIL | TTERRNO, "execve succeeded, expected failure");
49 else
50 tst_res(TPASS | TTERRNO, "execve failed as expected");
51
52 TST_CHECKPOINT_WAKE(0);
53 }
54
do_child(void)55 static void do_child(void)
56 {
57 int fd = SAFE_OPEN(TEST_APP, O_WRONLY);
58
59 TST_CHECKPOINT_WAKE_AND_WAIT(0);
60
61 SAFE_CLOSE(fd);
62
63 exit(0);
64 }
65
66 static const char *const resource_files[] = {
67 TEST_APP,
68 NULL,
69 };
70
71 static struct tst_test test = {
72 .test_all = verify_execve,
73 .forks_child = 1,
74 .child_needs_reinit = 1,
75 .needs_checkpoints = 1,
76 .resource_files = resource_files,
77 };
78