1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * 07/2001 Ported by Wayne Boyer
5 * 05/2019 Ported to new library: Christian Amann <camann@suse.com>
6 */
7 /*
8 * Tests if fstat() returns correctly and reports correct file information
9 * using the stat structure.
10 */
11
12 #include <errno.h>
13 #include <unistd.h>
14 #include <sys/stat.h>
15 #include <sys/types.h>
16 #include "tst_test.h"
17 #include "tst_safe_macros.h"
18
19 #define TESTFILE "test_file"
20 #define FILE_SIZE 1024
21 #define FILE_MODE 0644
22
23 static struct stat stat_buf;
24 static uid_t user_id;
25 static gid_t group_id;
26 static int fildes;
27
run(void)28 static void run(void)
29 {
30 int fail = 0;
31
32 TEST(fstat(fildes, &stat_buf));
33
34 if (TST_RET != 0) {
35 tst_res(TFAIL | TTERRNO, "fstat() failed");
36 return;
37 }
38
39 fail = 0;
40 if (stat_buf.st_uid != user_id) {
41 tst_res(TFAIL, "stat_buf.st_uid = %i expected %i",
42 stat_buf.st_uid, user_id);
43 fail++;
44 }
45
46 if (stat_buf.st_gid != group_id) {
47 tst_res(TFAIL, "stat_buf.st_gid = %i expected %i",
48 stat_buf.st_gid, group_id);
49 fail++;
50 }
51
52 if (stat_buf.st_size != FILE_SIZE) {
53 tst_res(TFAIL, "stat_buf.st_size = %li expected %i",
54 (long)stat_buf.st_size, FILE_SIZE);
55 fail++;
56 }
57
58 if ((stat_buf.st_mode & 0777) != FILE_MODE) {
59 tst_res(TFAIL, "stat_buf.st_mode = %o expected %o",
60 (stat_buf.st_mode & 0777), FILE_MODE);
61 fail++;
62 }
63
64 if (fail)
65 return;
66
67 tst_res(TPASS, "fstat() reported correct values.");
68 }
69
setup(void)70 static void setup(void)
71 {
72 user_id = getuid();
73 group_id = getgid();
74
75 umask(0);
76
77 fildes = SAFE_OPEN(TESTFILE, O_WRONLY | O_CREAT, FILE_MODE);
78
79 if (tst_fill_file(TESTFILE, 'a', FILE_SIZE, 1))
80 tst_brk(TBROK, "Could not fill Testfile!");
81 }
82
cleanup(void)83 static void cleanup(void)
84 {
85 if (fildes > 0)
86 SAFE_CLOSE(fildes);
87 }
88
89 static struct tst_test test = {
90 .test_all = run,
91 .setup = setup,
92 .cleanup = cleanup,
93 .needs_tmpdir = 1,
94 };
95