1 /*
2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * You should have received a copy of the GNU General Public License along
13 * with this program; if not, write the Free Software Foundation, Inc.,
14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 */
17 /**********************************************************
18 *
19 * TEST IDENTIFIER : prctl02
20 *
21 * EXECUTED BY : anyone
22 *
23 * TEST TITLE : Tests for error conditions
24 *
25 * TEST CASE TOTAL : 2
26 *
27 * AUTHOR : Saji Kumar.V.R <saji.kumar@wipro.com>
28 *
29 * SIGNALS
30 * Uses SIGUSR1 to pause before test if option set.
31 * (See the parse_opts(3) man page).
32 *
33 * DESCRIPTION
34 * Verify that
35 * 1) prctl() fails with errno, EINVAL when an invalid value is given for
36 * option
37 * 2) prctl() fails with errno, EINVAL when option is PR_SET_PDEATHSIG
38 * & arg2 is not zero or a valid signal number
39 *
40 * Setup:
41 * Setup signal handling.
42 * Pause for SIGUSR1 if option specified.
43 *
44 * Test:
45 * Loop if the proper options are given.
46 * fork a child
47 *
48 * CHILD:
49 * call prctl() with proper arguments
50 * If call fails with expected errno,
51 * exit with 0
52 * else
53 * exit with 1
54 * PARENT:
55 * wait() for child.
56 * If child exits with exit value 0,
57 * Test passed
58 * else
59 * Test Failed
60 *
61 * Cleanup:
62 * Print errno log and/or timing stats if options given
63 *
64 * USAGE: <for command-line>
65 * prctl02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
66 * where, -c n : Run n copies concurrently.
67 * -e : Turn on errno logging.
68 * -h : Show help screen
69 * -f : Turn off functional testing
70 * -i n : Execute test n times.
71 * -I x : Execute test for x seconds.
72 * -p : Pause for SIGUSR1 before starting
73 * -P x : Pause for x seconds between iterations.
74 * -t : Turn on syscall timing.
75 *
76 ****************************************************************/
77
78 #include <errno.h>
79 #include <signal.h>
80 #include <sys/prctl.h>
81 #include <sys/wait.h>
82
83 #include "test.h"
84
85 #define OPTION_INVALID 999
86 #define INVALID_ARG 999
87
88 static void setup(void);
89 static void cleanup(void);
90
91 char *TCID = "prctl02";
92
93 struct test_cases_t {
94 int option;
95 unsigned long arg2;
96 int exp_errno;
97 } test_cases[] = {
98 {
99 OPTION_INVALID, 0, EINVAL}, {
100 PR_SET_PDEATHSIG, INVALID_ARG, EINVAL}
101 };
102
103 int TST_TOTAL = sizeof(test_cases) / sizeof(test_cases[0]);
104
main(int ac,char ** av)105 int main(int ac, char **av)
106 {
107
108 int lc, i;
109 pid_t child_pid;
110 int status;
111
112 tst_parse_opts(ac, av, NULL, NULL);
113
114 setup();
115
116 for (lc = 0; TEST_LOOPING(lc); lc++) {
117
118 tst_count = 0;
119
120 for (i = 0; i < TST_TOTAL; ++i) {
121
122 switch (child_pid = FORK_OR_VFORK()) {
123
124 case -1:
125 /* fork() failed */
126 tst_resm(TFAIL, "fork() failed");
127 continue;
128
129 case 0:
130 /* Child */
131
132 TEST(prctl(test_cases[i].option,
133 test_cases[i].arg2));
134 if ((TEST_RETURN == -1) && (TEST_ERRNO ==
135 test_cases
136 [i].exp_errno)) {
137 exit(TEST_ERRNO);
138 } else {
139 tst_resm(TWARN | TTERRNO,
140 "prctl() returned %ld",
141 TEST_RETURN);
142 exit(TEST_ERRNO);
143 }
144
145 default:
146 /* Parent */
147 if ((waitpid(child_pid, &status, 0)) < 0) {
148 tst_resm(TFAIL, "waitpid() failed");
149 continue;
150 }
151
152 if ((WIFEXITED(status)) && (WEXITSTATUS(status)
153 ==
154 test_cases
155 [i].exp_errno)) {
156 tst_resm(TPASS, "Test Passed");
157 } else {
158 tst_resm(TFAIL, "Test Failed");
159 }
160
161 }
162 }
163 }
164
165 /* cleanup and exit */
166 cleanup();
167
168 tst_exit();
169
170 }
171
172 /* setup() - performs all ONE TIME setup for this test */
setup(void)173 void setup(void)
174 {
175
176 tst_sig(FORK, DEF_HANDLER, cleanup);
177
178 TEST_PAUSE;
179
180 }
181
182 /*
183 *cleanup() - performs all ONE TIME cleanup for this test at
184 * completion or premature exit.
185 */
cleanup(void)186 void cleanup(void)
187 {
188
189 }
190