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 * fcntl18.c
23 *
24 * DESCRIPTION
25 * Test to check the error conditions in fcntl system call
26 *
27 * USAGE
28 * fcntl18
29 *
30 * HISTORY
31 * 07/2001 Ported by Wayne Boyer
32 *
33 * RESTRICTIONS
34 * NONE
35 */
36
37 #include <signal.h>
38 #include <errno.h>
39 #include <pwd.h>
40 #include <sys/types.h>
41 #include <sys/wait.h>
42 #include <sys/stat.h>
43 #include <sys/param.h>
44 #include <fcntl.h>
45 #include <unistd.h>
46 #include "test.h"
47
48 #define INVAL_FLAG -1
49 #define INVAL_MIN (-2147483647L-1L)
50
51 int fd;
52 char string[40] = "";
53
54 char *TCID = "fcntl18";
55 int TST_TOTAL = 1;
56 struct passwd *pass;
57
58 void setup(void);
59 void cleanup(void);
60 int fail;
61
main(int ac,char ** av)62 int main(int ac, char **av)
63 {
64 int retval;
65 struct flock fl;
66 int pid, status;
67
68 tst_parse_opts(ac, av, NULL, NULL);
69
70 setup(); /* global setup */
71
72 /* //block1: */
73 tst_resm(TINFO, "Enter block 1");
74 fail = 0;
75 if ((fd = open("temp.dat", O_CREAT | O_RDWR, 0777)) < 0) { //mode must be specified when O_CREATE is in the flag
76 tst_resm(TFAIL, "file opening error");
77 fail = 1;
78 }
79
80 /* Error condition if address is bad */
81 retval = fcntl(fd, F_GETLK, (struct flock *)INVAL_FLAG);
82 if (errno == EFAULT) {
83 tst_resm(TPASS, "Test F_GETLK: for errno EFAULT PASSED");
84 } else {
85 tst_resm(TFAIL, "Test F_GETLK: for errno EFAULT FAILED");
86 fail = 1;
87 }
88 if (fail) {
89 tst_resm(TINFO, "Block 1 FAILED");
90 } else {
91 tst_resm(TINFO, "Block 1 PASSED");
92 }
93 tst_resm(TINFO, "Exit block 1");
94
95 /* //block2: */
96 tst_resm(TINFO, "Enter block 2");
97 fail = 0;
98 /* Error condition if address is bad */
99 retval = fcntl(fd, F_GETLK, (struct flock *)INVAL_FLAG);
100 if (errno == EFAULT) {
101 tst_resm(TPASS, "Test F_GETLK: for errno EFAULT PASSED");
102 } else {
103 tst_resm(TFAIL, "Test F_GETLK: for errno EFAULT FAILED");
104 fail = 1;
105 }
106 if (fail) {
107 tst_resm(TINFO, "Block 2 FAILED");
108 } else {
109 tst_resm(TINFO, "Block 2 PASSED");
110 }
111 tst_resm(TINFO, "Exit block 2");
112
113 /* //block3: */
114 tst_resm(TINFO, "Enter block 3");
115 fail = 0;
116 if ((pid = tst_fork()) == 0) { /* child */
117 fail = 0;
118 pass = getpwnam("nobody");
119 retval = setreuid(-1, pass->pw_uid);
120 if (retval < 0) {
121 tst_resm(TFAIL, "setreuid to user nobody failed, "
122 "errno: %d", errno);
123 fail = 1;
124 }
125
126 /* Error condition: invalid cmd */
127 retval = fcntl(fd, INVAL_FLAG, &fl);
128 if (errno == EINVAL) {
129 tst_resm(TPASS, "Test for errno EINVAL PASSED");
130 } else {
131 tst_resm(TFAIL, "Test for errno EINVAL FAILED, "
132 "got: %d", errno);
133 fail = 1;
134 }
135 exit(fail);
136 } else { /* parent */
137 waitpid(pid, &status, 0);
138 if (WEXITSTATUS(status) != 0) {
139 tst_resm(TFAIL, "child returned bad exit status");
140 fail = 1;
141 }
142 if (fail) {
143 tst_resm(TINFO, "Block 3 FAILED");
144 } else {
145 tst_resm(TINFO, "Block 3 PASSED");
146 }
147 }
148 tst_resm(TINFO, "Exit block 3");
149
150 cleanup();
151 tst_exit();
152
153 }
154
155 /*
156 * setup()
157 * performs all ONE TIME setup for this test
158 */
setup(void)159 void setup(void)
160 {
161
162 tst_sig(FORK, DEF_HANDLER, cleanup);
163
164 tst_require_root();
165
166 umask(0);
167
168 TEST_PAUSE;
169
170 tst_tmpdir();
171
172 sprintf(string, "./fcntl18.%d.1", getpid());
173 unlink(string);
174 }
175
176 /*
177 * cleanup()
178 * performs all the ONE TIME cleanup for this test at completion or
179 * or premature exit.
180 */
cleanup(void)181 void cleanup(void)
182 {
183 /*
184 * print timing status if that option was specified.
185 * print errno log if that option was specified
186 */
187 close(fd);
188
189 tst_rmdir();
190
191 unlink("temp.dat");
192
193 }
194