1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /*
21 * NAME
22 * umask03.c
23 *
24 * DESCRIPTION
25 * Check that umask changes the mask, and that the previous
26 * value of the mask is returned correctly for each value.
27 *
28 * ALGORITHM
29 * For each mask value (9 bits) set mask, and check that the return
30 * corresponds to the previous value set.
31 *
32 * USAGE: <for command-line>
33 * umask03 [-c n] [-i n] [-I x] [-P x] [-t]
34 * where, -c n : Run n copies concurrently.
35 * -i n : Execute test n times.
36 * -I x : Execute test for x seconds.
37 * -P x : Pause for x seconds between iterations.
38 * -t : Turn on syscall timing.
39 *
40 * History
41 * 07/2001 John George
42 * -Ported
43 *
44 * Restrictions
45 * None
46 */
47
48 #include <sys/types.h>
49 #include <sys/stat.h>
50 #include <fcntl.h>
51 #include <stdio.h>
52 #include "test.h"
53 #include <sys/types.h>
54 #include <sys/stat.h>
55
56 char *TCID = "umask03";
57 int TST_TOTAL = 1;
58
59 char filname[40];
60
61 void setup(void);
62 void cleanup(void);
63
main(int argc,char ** argv)64 int main(int argc, char **argv)
65 {
66 int lc;
67
68 struct stat statbuf;
69 int mskval = 0000;
70 int failcnt = 0;
71 int fildes, i;
72 unsigned low9mode;
73
74 tst_parse_opts(argc, argv, NULL, NULL);
75
76 setup(); /* global setup */
77
78 for (lc = 0; TEST_LOOPING(lc); lc++) {
79
80 /* reset tst_count in case we are looping */
81 tst_count = 0;
82
83 for (umask(mskval = 0077), i = 1; mskval < 01000;
84 i++, umask(++mskval)) {
85 unlink(filname);
86 if ((fildes = creat(filname, 0777)) == -1) {
87 tst_resm(TBROK, "cannot create "
88 "file with mskval 0%o %d",
89 mskval, mskval);
90 } else {
91 if (fstat(fildes, &statbuf) != 0) {
92 tst_resm(TBROK, "cannot fstat file");
93 } else {
94 low9mode = statbuf.st_mode & 0777;
95 if (low9mode != (~mskval & 0777)) {
96 tst_resm(TFAIL,
97 "got %o expected %o"
98 "mask didnot take",
99 low9mode,
100 (~mskval & 0777));
101 }
102 }
103 }
104 close(fildes);
105 }
106 if (!failcnt)
107 tst_resm(TPASS, "umask correctly returns the "
108 "previous value for all masks");
109 }
110 cleanup();
111 tst_exit();
112
113 }
114
115 /*
116 * setup
117 * performs all ONE TIME setup for this test
118 */
setup(void)119 void setup(void)
120 {
121
122 tst_sig(NOFORK, DEF_HANDLER, cleanup);
123
124 /* Pause if that option was specified
125 * TEST_PAUSE contains the code to fork the test with the -i option.
126 * You want to make sure you do this before you create your temporary
127 * directory.
128 */
129 TEST_PAUSE;
130
131 /* make temp dir and cd to it */
132 tst_tmpdir();
133
134 sprintf(filname, "umask2.%d", getpid());
135 }
136
137 /*
138 * cleanup
139 * performs all ONE TIME cleanup for this test at completion or
140 * premature exit
141 */
cleanup(void)142 void cleanup(void)
143 {
144
145 /*
146 * cleanup the temporary files and the temporary directory
147 */
148 unlink(filname);
149 tst_rmdir();
150
151 /*
152 * exit with return code appropriate for results
153 */
154
155 }
156