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   AUTHOR: Saji Kumar.V.R <saji.kumar@wipro.com>
19   EXECUTED BY: root / superuser
20 
21   TEST ITEMS:
22    1. Check to see if adjtimex succeed with mode combination :
23       ADJ_OFFSET | ADJ_FREQUENCY | ADJ_MAXERROR | ADJ_ESTERROR |
24       ADJ_STATUS | ADJ_TIMECONST | ADJ_TICK
25    2. Check to see if adjtimex succeed with mode ADJ_OFFSET_SINGLESHOT
26 */
27 
28 #if defined UCLINUX && !__THROW
29 /* workaround for libc bug causing failure in sys/timex.h */
30 #define __THROW
31 #endif
32 
33 #include <errno.h>
34 #include <sys/timex.h>
35 #include "test.h"
36 
37 #define SET_MODE (ADJ_OFFSET | ADJ_FREQUENCY | ADJ_MAXERROR | ADJ_ESTERROR | \
38 	ADJ_STATUS | ADJ_TIMECONST | ADJ_TICK)
39 
40 static void setup(void);
41 static void cleanup(void);
42 
43 char *TCID = "adjtimex01";
44 int TST_TOTAL = 2;
45 
46 static struct timex tim_save;
47 
48 int main(int ac, char **av)
49 {
50 	int lc;
51 
52 	tst_parse_opts(ac, av, NULL, NULL);
53 
54 	setup();
55 
56 	for (lc = 0; TEST_LOOPING(lc); lc++) {
57 
58 		tst_count = 0;
59 
60 		/* Call adjtimex(2) */
61 		tim_save.modes = SET_MODE;
62 
63 		TEST(adjtimex(&tim_save));
64 
65 		if ((TEST_RETURN >= 0) && (TEST_RETURN <= 5)) {
66 			tst_resm(TPASS, "adjtimex() with mode %u returned %ld",
67 				 SET_MODE, TEST_RETURN);
68 		} else {
69 			tst_resm(TFAIL | TTERRNO,
70 				"Test Failed, adjtimex() with mode %u "
71 				"returned %ld", SET_MODE, TEST_RETURN);
72 		}
73 
74 		/* Call adjtimex(2) */
75 		tim_save.modes = ADJ_OFFSET_SINGLESHOT;
76 
77 		TEST(adjtimex(&tim_save));
78 
79 		if ((TEST_RETURN >= 0) && (TEST_RETURN <= 5)) {
80 			tst_resm(TPASS, "adjtimex() with mode %u returned %ld",
81 				 ADJ_OFFSET_SINGLESHOT, TEST_RETURN);
82 		} else {
83 			tst_resm(TFAIL | TTERRNO,
84 				"Test Failed, adjtimex() with mode %u returned "
85 				"%ld", ADJ_OFFSET_SINGLESHOT, TEST_RETURN);
86 		}
87 	}
88 
89 	cleanup();
90 
91 	tst_exit();
92 }
93 
94 static void setup(void)
95 {
96 	tst_require_root();
97 
98 	tim_save.modes = 0;
99 
100 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
101 
102 	TEST_PAUSE;
103 
104 	/* Save current parameters in tim_save */
105 	if ((adjtimex(&tim_save)) == -1)
106 		tst_brkm(TBROK | TERRNO, cleanup,
107 			 "failed to save current parameters");
108 }
109 
110 static void cleanup(void)
111 {
112 }
113