1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. 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 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 *
23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
25 *
26 * http://www.sgi.com
27 *
28 * For further information regarding this notice, see:
29 *
30 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
31 */
32 /* $Id: alarm03.c,v 1.10 2009/08/28 10:57:29 vapier Exp $ */
33 /**********************************************************
34 *
35 * OS Test - Silicon Graphics, Inc.
36 *
37 * TEST IDENTIFIER : alarm03
38 *
39 * EXECUTED BY : anyone
40 *
41 * TEST TITLE : alarm(2) cleared by a fork
42 *
43 * PARENT DOCUMENT : usctpl01
44 *
45 * TEST CASE TOTAL : 1
46 *
47 * WALL CLOCK TIME : 1
48 *
49 * CPU TYPES : ALL
50 *
51 * AUTHOR : Richard Logan
52 *
53 * CO-PILOT : Dennis Arason
54 *
55 * DATE STARTED : 08/96
56 *
57 *
58 * TEST CASES
59 *
60 * 1.) alarm(100), fork, child's alarm(0) shall return 0;
61 * 2.) alarm(100), fork, parent's alarm(0) shall return non-zero.
62 *
63 * INPUT SPECIFICATIONS
64 * The standard options for system call tests are accepted.
65 * (See the parse_opts(3) man page).
66 *
67 *
68 * SPECIAL PROCEDURAL REQUIREMENTS
69 * None
70 *
71 *
72 * DETAILED DESCRIPTION
73 * This is a Phase I test for the alarm(2) system call. It is intended
74 * to provide a limited exposure of the system call, for now. It
75 * should/will be extended when full functional tests are written for
76 * alarm(2).
77 *
78 * Setup:
79 * Setup signal handling.
80 * Pause for SIGUSR1 if option specified.
81 *
82 * Test:
83 * Loop if the proper options are given.
84 * Execute system call
85 * Check return code, if system call failed (return=-1)
86 * Log the errno and Issue a FAIL message.
87 * Otherwise, Issue a PASS message.
88 *
89 * Cleanup:
90 * Print errno log and/or timing stats if options given
91 *
92 *
93 *#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#**/
94
95 #include <errno.h>
96 #include <string.h>
97 #include <signal.h>
98 #include <stdlib.h>
99 #include <sys/wait.h>
100 #include "test.h"
101
102 void setup();
103 void cleanup();
104 void trapper();
105
106 char *TCID = "alarm03";
107 int TST_TOTAL = 1;
108
main(int ac,char ** av)109 int main(int ac, char **av)
110 {
111 int lc;
112 int status, retval = 0;
113
114 tst_parse_opts(ac, av, NULL, NULL);
115
116 setup();
117
118 for (lc = 0; TEST_LOOPING(lc); lc++) {
119
120 tst_count = 0;
121
122 /*
123 * Call alarm(2)
124 */
125 TEST(alarm(100));
126
127 switch (FORK_OR_VFORK()) {
128 case -1:
129 tst_brkm(TBROK | TERRNO, cleanup, "fork() failed");
130 break;
131
132 case 0:
133 TEST(alarm(0));
134
135 if (TEST_RETURN != 0) {
136 retval = 1;
137 printf("%d: alarm(100), fork, alarm(0) child's "
138 "alarm returned %ld\n",
139 getpid(), TEST_RETURN);
140 } else {
141 printf("%d: alarm(100), fork, alarm(0) child's "
142 "alarm returned %ld\n",
143 getpid(), TEST_RETURN);
144 }
145
146 exit(retval);
147 break;
148
149 default:
150 tst_count++;
151 TEST(alarm(0));
152 /* The timer may be rounded up to the next nearest second, this is OK */
153 if (TEST_RETURN <= 0 || TEST_RETURN > 101) {
154 retval = 1;
155 tst_resm(TFAIL,
156 "alarm(100), fork, alarm(0) parent's alarm returned %ld",
157 TEST_RETURN);
158 } else {
159 tst_resm(TPASS,
160 "alarm(100), fork, alarm(0) parent's alarm returned %ld",
161 TEST_RETURN);
162 }
163 if (wait(&status) == -1)
164 tst_brkm(TBROK | TERRNO, cleanup,
165 "wait failed");
166 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
167 tst_resm(TFAIL, "see failures reported above");
168
169 }
170
171 }
172
173 cleanup();
174 tst_exit();
175 }
176
setup(void)177 void setup(void)
178 {
179
180 tst_sig(FORK, DEF_HANDLER, cleanup);
181
182 signal(SIGALRM, trapper);
183
184 TEST_PAUSE;
185 }
186
cleanup(void)187 void cleanup(void)
188 {
189 }
190
trapper(int sig)191 void trapper(int sig)
192 {
193 signal(SIGALRM, trapper);
194 }
195