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 * Test Name: getresgid01
22 *
23 * Test Description:
24 * Verify that getresgid() will be successful to get the real, effective
25 * and saved user id of the calling process.
26 *
27 * Expected Result:
28 * getresgid() should return with 0 value and the real/effective/saved
29 * user ids should be equal to that of calling process.
30 *
31 * Algorithm:
32 * Setup:
33 * Setup signal handling.
34 * Pause for SIGUSR1 if option specified.
35 *
36 * Test:
37 * Loop if the proper options are given.
38 * Execute system call
39 * Check return code, if system call failed (return=-1)
40 * Log the errno and Issue a FAIL message.
41 * Otherwise,
42 * Verify the Functionality of system call
43 * if successful,
44 * Issue Functionality-Pass message.
45 * Otherwise,
46 * Issue Functionality-Fail message.
47 * Cleanup:
48 * Print errno log and/or timing stats if options given
49 *
50 * Usage: <for command-line>
51 * getresgid01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
52 * where, -c n : Run n copies concurrently.
53 * -f : Turn off functionality Testing.
54 * -i n : Execute test n times.
55 * -I x : Execute test for x seconds.
56 * -P x : Pause for x seconds between iterations.
57 * -t : Turn on syscall timing.
58 *
59 * HISTORY
60 * 07/2001 Ported by Wayne Boyer
61 *
62 * RESTRICTIONS:
63 * None.
64 *
65 */
66
67 #include <stdio.h>
68 #include <unistd.h>
69 #include <sys/types.h>
70 #include <errno.h>
71 #include <fcntl.h>
72 #include <string.h>
73 #include <signal.h>
74
75 #include "test.h"
76 #include "compat_16.h"
77
78 char *TCID = "getresgid01";
79 int TST_TOTAL = 1;
80 GID_T pr_gid, pe_gid, ps_gid; /* calling process real/effective/saved gid */
81
82 void setup(); /* Main setup function of test */
83 void cleanup(); /* cleanup function for the test */
84
main(int ac,char ** av)85 int main(int ac, char **av)
86 {
87 int lc;
88 GID_T real_gid, /* real/eff./saved user id from getresgid() */
89 eff_gid, sav_gid;
90
91 tst_parse_opts(ac, av, NULL, NULL);
92
93 setup();
94
95 for (lc = 0; TEST_LOOPING(lc); lc++) {
96
97 tst_count = 0;
98
99 /*
100 * Call getresgid() to get the real/effective/saved
101 * user id's of the calling process.
102 */
103 TEST(GETRESGID(cleanup, &real_gid, &eff_gid, &sav_gid));
104
105 if (TEST_RETURN == -1) {
106 tst_resm(TFAIL, "getresgid() Failed, errno=%d : %s",
107 TEST_ERRNO, strerror(TEST_ERRNO));
108 continue;
109 }
110 /*
111 * Verify the real/effective/saved gid values returned
112 * by getresgid with the expected values.
113 */
114 if ((real_gid != pr_gid) || (eff_gid != pe_gid) ||
115 (sav_gid != ps_gid)) {
116 tst_resm(TFAIL, "real:%d, effective:%d, "
117 "saved-user:%d ids differ",
118 real_gid, eff_gid, sav_gid);
119 } else {
120 tst_resm(TPASS, "Functionality of getresgid() "
121 "successful");
122 }
123 }
124
125 cleanup();
126 tst_exit();
127 }
128
129 /*
130 * setup() - performs all ONE TIME setup for this test.
131 * Get the real/effective/saved user id of the calling process.
132 */
setup(void)133 void setup(void)
134 {
135
136 tst_sig(NOFORK, DEF_HANDLER, cleanup);
137
138 TEST_PAUSE;
139
140 /* Real user-id of the calling process */
141 pr_gid = getgid();
142
143 /* Effective user-id of the calling process */
144 pe_gid = getegid();
145
146 /* Saved user-id of the calling process */
147 ps_gid = getegid();
148
149 }
150
151 /*
152 * cleanup() - performs all ONE TIME cleanup for this test at
153 * completion or premature exit.
154 */
cleanup(void)155 void cleanup(void)
156 {
157
158 }
159