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  *	uname02.c
23  *
24  * DESCRIPTION
25  *	uname02 - call uname() with an invalid address to produce a failure
26  *
27  * ALGORITHM
28  *	loop if that option was specified
29  *	issue the system call
30  *	check the errno value
31  *	  issue a PASS message if we get EFAULT - errno 14
32  *	otherwise, the tests fails
33  *	  issue a FAIL message
34  *	  break any remaining tests
35  *	  call cleanup
36  *
37  * USAGE:  <for command-line>
38  *  uname02 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
39  *		where,  -c n : Run n copies concurrently.
40  *			-e   : Turn on errno logging.
41  *			-i n : Execute test n times.
42  *			-I x : Execute test for x seconds.
43  *			-P x : Pause for x seconds between iterations.
44  *			-t   : Turn on syscall timing.
45  *
46  * History
47  *	07/2001 John George
48  *		-Ported
49  *
50  * Restrictions
51  *	none
52  */
53 
54 #include "test.h"
55 
56 #include <errno.h>
57 #include <sys/utsname.h>
58 
59 void cleanup(void);
60 void setup(void);
61 
62 char *TCID = "uname02";
63 int TST_TOTAL = 1;
64 
65 #if !defined(UCLINUX)
66 
67 int main(int ac, char **av)
68 {
69 	int lc;
70 
71 	tst_parse_opts(ac, av, NULL, NULL);
72 
73 	setup();		/* global setup */
74 
75 	for (lc = 0; TEST_LOOPING(lc); lc++) {
76 		tst_count = 0;
77 
78 		/*
79 		 * call the system call with the TEST() macro
80 		 * send -1 for an illegal address
81 		 */
82 
83 		TEST(uname((struct utsname *)-1));
84 
85 		if (TEST_RETURN == 0)
86 			tst_resm(TFAIL, "call succeed when failure expected");
87 
88 		switch (TEST_ERRNO) {
89 		case EFAULT:
90 			tst_resm(TPASS | TTERRNO, "uname failed as expected");
91 			break;
92 		default:
93 			tst_resm(TFAIL | TTERRNO, "uname failed unexpectedly");
94 		}
95 	}
96 
97 	cleanup();
98 
99 	tst_exit();
100 
101 }
102 
103 void setup(void)
104 {
105 
106 	tst_sig(FORK, DEF_HANDLER, cleanup);
107 
108 	TEST_PAUSE;
109 }
110 
111 void cleanup(void)
112 {
113 }
114 #else
115 int main(void)
116 {
117 	tst_resm(TCONF, NULL, "test is not available on uClinux");
118 }
119 #endif /* if !defined(UCLINUX) */
120