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 * ioctl01.c
23 *
24 * DESCRIPTION
25 * Testcase to check the errnos set by the ioctl(2) system call.
26 *
27 * ALGORITHM
28 * 1. EBADF: Pass an invalid fd to ioctl(fd, ..) and expect EBADF.
29 * 2. EFAULT: Pass an invalid address of arg in ioctl(fd, .., arg)
30 * 3. EINVAL: Pass invalid cmd in ioctl(fd, cmd, arg)
31 * 4. ENOTTY: Pass an non-streams fd in ioctl(fd, cmd, arg)
32 * 5. EFAULT: Pass a NULL address for termio
33 *
34 * USAGE: <for command-line>
35 * ioctl01 -D /dev/tty[0-9] [-c n] [-e] [-i n] [-I x] [-P x] [-t]
36 * where, -c n : Run n copies concurrently.
37 * -e : Turn on errno logging.
38 * -i n : Execute test n times.
39 * -I x : Execute test for x seconds.
40 * -P x : Pause for x seconds between iterations.
41 * -t : Turn on syscall timing.
42 *
43 * HISTORY
44 * 07/2001 Ported by Wayne Boyer
45 * 04/2002 Fixes by wjhuie
46 *
47 * RESTRICTIONS
48 * test must be run with the -D option
49 * test may have to be run as root depending on the tty permissions
50 */
51
52 #include <errno.h>
53 #include <fcntl.h>
54 #include <stdio.h>
55 #include <termio.h>
56 #include <termios.h>
57 #include "test.h"
58 #include "safe_macros.h"
59
60 char *TCID = "ioctl01";
61 int TST_TOTAL = 5;
62
63 #define INVAL_IOCTL 9999999
64
65 static void setup(void);
66 static void cleanup(void);
67 static void help(void);
68
69 static int fd, fd1;
70 static int bfd = -1;
71
72 static struct termio termio;
73
74 static struct test_case_t {
75 int *fd;
76 int request;
77 struct termio *s_tio;
78 int error;
79 } TC[] = {
80 /* file descriptor is invalid */
81 {
82 &bfd, TCGETA, &termio, EBADF},
83 /* termio address is invalid */
84 {
85 &fd, TCGETA, (struct termio *)-1, EFAULT},
86 /* command is invalid */
87 /* This errno value was changed from EINVAL to ENOTTY
88 * by kernel commit 07d106d0 and bbb63c51
89 */
90 {
91 &fd, INVAL_IOCTL, &termio, ENOTTY},
92 /* file descriptor is for a regular file */
93 {
94 &fd1, TCGETA, &termio, ENOTTY},
95 /* termio is NULL */
96 {
97 &fd, TCGETA, NULL, EFAULT}
98 };
99
100 static int Devflag;
101 static char *devname;
102
103 static option_t options[] = {
104 {"D:", &Devflag, &devname},
105 {NULL, NULL, NULL}
106 };
107
main(int ac,char ** av)108 int main(int ac, char **av)
109 {
110 int lc;
111 int i;
112
113 tst_parse_opts(ac, av, options, &help);
114
115 if (!Devflag)
116 tst_brkm(TBROK, NULL, "You must specify a tty device with "
117 "the -D option.");
118
119 tst_require_root();
120
121 setup();
122
123 fd = SAFE_OPEN(cleanup, devname, O_RDWR, 0777);
124
125 for (lc = 0; TEST_LOOPING(lc); lc++) {
126
127 tst_count = 0;
128
129 /* loop through the test cases */
130 for (i = 0; i < TST_TOTAL; i++) {
131
132 TEST(ioctl(*(TC[i].fd), TC[i].request, TC[i].s_tio));
133
134 if (TEST_RETURN != -1) {
135 tst_resm(TFAIL, "call succeeded unexpectedly");
136 continue;
137 }
138
139 if (TEST_ERRNO == TC[i].error)
140 tst_resm(TPASS | TTERRNO, "failed as expected");
141 else
142 tst_resm(TFAIL | TTERRNO,
143 "failed unexpectedly; expected %d - %s",
144 TC[i].error, strerror(TC[i].error));
145 }
146 }
147 cleanup();
148
149 tst_exit();
150 }
151
help(void)152 static void help(void)
153 {
154 printf(" -D <tty device> : for example, /dev/tty[0-9]\n");
155 }
156
setup(void)157 static void setup(void)
158 {
159 tst_sig(NOFORK, DEF_HANDLER, cleanup);
160
161 TEST_PAUSE;
162
163 /* make a temporary directory and cd to it */
164 tst_tmpdir();
165
166 if (tst_kvercmp(3, 7, 0) < 0) {
167 TC[2].error = EINVAL;
168 }
169
170 /* create a temporary file */
171 fd1 = open("x", O_CREAT, 0777);
172 if (fd1 == -1)
173 tst_resm(TFAIL | TERRNO, "Could not open test file");
174 }
175
cleanup(void)176 static void cleanup(void)
177 {
178 close(fd1);
179
180 tst_rmdir();
181 }
182