1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
3 * AUTHOR : Bob Clark
4 * CO-PILOT : Barrie Kletscher
5 * DATE STARTED : 9/26/86
6 * Copyright (C) 2015 Cyril Hrubis <chrubis@suse.cz>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it would be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 *
16 * Further, this software is distributed without any warranty that it is
17 * free of the rightful claim of any third person regarding infringement
18 * or the like. Any license provided herein, whether implied or
19 * otherwise, applies only to this software file. Patent licenses, if
20 * any, provided herein do not apply to combinations of this program with
21 * other software, or any other product whatsoever.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write the Free Software Foundation, Inc.,
25 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 *
27 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
28 * Mountain View, CA 94043, or:
29 *
30 * http://www.sgi.com
31 *
32 * For further information regarding this notice, see:
33 *
34 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
35 */
36 /*
37 * TEST ITEMS
38 * 1. sighold action to turn off the receipt of all signals was done
39 * without error.
40 * 2. After signals were held, and sent, no signals were trapped.
41 */
42 #define _XOPEN_SOURCE 500
43 #include <errno.h>
44 #include <signal.h>
45 #include <string.h>
46 #include <fcntl.h>
47 #include <stdlib.h>
48 #include <sys/types.h>
49 #include <sys/wait.h>
50 #include "test.h"
51
52 /* _XOPEN_SOURCE disables NSIG */
53 #ifndef NSIG
54 # define NSIG _NSIG
55 #endif
56
57 /* Needed for NPTL */
58 #define SIGCANCEL 32
59 #define SIGTIMER 33
60
61 /* ensure NUMSIGS is defined */
62 #ifndef NUMSIGS
63 # define NUMSIGS NSIG
64 #endif
65
66 char *TCID = "sighold02";
67 int TST_TOTAL = 2;
68
69 static int pid;
70 static void do_child(void);
71 static void setup(void);
72 static void cleanup(void);
73
74 static int sigs_catched;
75 static int sigs_map[NUMSIGS];
76
skip_sig(int sig)77 static int skip_sig(int sig)
78 {
79 switch (sig) {
80 case SIGCLD:
81 case SIGKILL:
82 case SIGALRM:
83 case SIGSTOP:
84 case SIGCANCEL:
85 case SIGTIMER:
86 return 1;
87 default:
88 return 0;
89 }
90 }
91
main(int ac,char ** av)92 int main(int ac, char **av)
93 {
94 int sig;
95 int lc;
96
97 tst_parse_opts(ac, av, NULL, NULL);
98
99 #ifdef UCLINUX
100 maybe_run_child(&do_child, "");
101 #endif
102
103 setup();
104
105 for (lc = 0; TEST_LOOPING(lc); lc++) {
106 if ((pid = FORK_OR_VFORK()) < 0) {
107 tst_brkm(TBROK | TERRNO, NULL, "fork() failed");
108 } else if (pid > 0) {
109 TST_SAFE_CHECKPOINT_WAIT(NULL, 0);
110
111 for (sig = 1; sig < NUMSIGS; sig++) {
112 if (skip_sig(sig))
113 continue;
114 if (kill(pid, sig) < 0) {
115 tst_brkm(TBROK | TERRNO, NULL,
116 "kill(%d, %d(%s)) failed",
117 pid, sig, tst_strsig(sig));
118 }
119 }
120
121 TST_SAFE_CHECKPOINT_WAKE(NULL, 0);
122 tst_record_childstatus(cleanup, pid);
123 } else {
124
125 #ifdef UCLINUX
126 if (self_exec(av[0], "") < 0) {
127 tst_brkm(TBROK | TERRNO, NULL,
128 "self_exec() failed");
129 }
130 #else
131 do_child();
132 #endif
133 }
134 }
135
136 cleanup();
137 tst_exit();
138 }
139
handle_sigs(int sig)140 static void handle_sigs(int sig)
141 {
142 sigs_map[sig] = 1;
143 sigs_catched++;
144 }
145
do_child(void)146 void do_child(void)
147 {
148 int cnt;
149 int sig;
150
151 /* set up signal handler routine */
152 for (sig = 1; sig < NUMSIGS; sig++) {
153 if (skip_sig(sig))
154 continue;
155
156 if (signal(sig, handle_sigs) == SIG_ERR) {
157 tst_resm(TBROK | TERRNO, "signal() %i(%s) failed",
158 sig, tst_strsig(sig));
159 }
160 }
161
162 /* all set up to catch signals, now hold them */
163 for (cnt = 0, sig = 1; sig < NUMSIGS; sig++) {
164 if (skip_sig(sig))
165 continue;
166 cnt++;
167 TEST(sighold(sig));
168 if (TEST_RETURN != 0) {
169 tst_resm(TBROK | TTERRNO, "sighold() %i(%s) failed",
170 sig, tst_strsig(sig));
171 }
172 }
173
174 TST_SAFE_CHECKPOINT_WAKE_AND_WAIT(NULL, 0);
175
176 if (!sigs_catched) {
177 tst_resm(TPASS, "All signals were hold");
178 tst_exit();
179 }
180
181 tst_resm(TFAIL, "Signal handler was executed");
182
183 for (sig = 1; sig < NUMSIGS; sig++) {
184 if (sigs_map[sig]) {
185 tst_resm(TINFO, "Signal %i(%s) catched",
186 sig, tst_strsig(sig));
187 }
188 }
189
190 tst_exit();
191 }
192
setup(void)193 static void setup(void)
194 {
195 tst_sig(FORK, DEF_HANDLER, NULL);
196
197 tst_tmpdir();
198
199 TST_CHECKPOINT_INIT(tst_rmdir);
200
201 TEST_PAUSE;
202 }
203
cleanup(void)204 static void cleanup(void)
205 {
206 tst_rmdir();
207 }
208