1 /******************************************************************************/
2 /* Copyright (c) Crackerjack Project., 2007 */
3 /* */
4 /* This program is free software; you can redistribute it and/or modify */
5 /* it under the terms of the GNU General Public License as published by */
6 /* the Free Software Foundation; either version 2 of the License, or */
7 /* (at your option) any later version. */
8 /* */
9 /* This program is distributed in the hope that it will be useful, */
10 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
11 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
12 /* the GNU General Public License for more details. */
13 /* */
14 /* You should have received a copy of the GNU General Public License */
15 /* along with this program; if not, write to the Free Software Foundation, */
16 /* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
17 /* */
18 /* History: Porting from Crackerjack to LTP is done by */
19 /* Manas Kumar Nayak maknayak@in.ibm.com> */
20 /******************************************************************************/
21
22 /******************************************************************************/
23 /* Description: This tests the rt_sigaction() syscall */
24 /* rt_sigaction alters an action taken by a process on receipt */
25 /* of a particular signal. The action is specified by the */
26 /* sigaction structure. The previous action on the signal is */
27 /* saved in oact.sigsetsize should indicate the size of a */
28 /* sigset_t type. */
29 /******************************************************************************/
30
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <unistd.h>
34 #include <signal.h>
35 #include <errno.h>
36 #include <sys/syscall.h>
37 #include <string.h>
38
39 #include "test.h"
40 #include "lapi/syscalls.h"
41 #include "lapi/rt_sigaction.h"
42
43 char *TCID = "rt_sigaction01";
44 static int testno;
45 int TST_TOTAL = 1;
46
cleanup(void)47 static void cleanup(void)
48 {
49 tst_rmdir();
50 }
51
setup(void)52 static void setup(void)
53 {
54 TEST_PAUSE;
55 tst_tmpdir();
56 }
57
58 static int test_flags[] =
59 { SA_RESETHAND | SA_SIGINFO, SA_RESETHAND, SA_RESETHAND | SA_SIGINFO,
60 SA_RESETHAND | SA_SIGINFO, SA_NOMASK };
61 char *test_flags_list[] =
62 { "SA_RESETHAND|SA_SIGINFO", "SA_RESETHAND", "SA_RESETHAND|SA_SIGINFO",
63 "SA_RESETHAND|SA_SIGINFO", "SA_NOMASK" };
64
handler(int sig)65 static void handler(int sig)
66 {
67 tst_resm(TINFO, "Signal Handler Called with signal number %d\n", sig);
68 return;
69 }
70
set_handler(int sig,int sig_to_mask,int mask_flags)71 static int set_handler(int sig, int sig_to_mask, int mask_flags)
72 {
73 struct sigaction sa, oldaction;
74
75 sa.sa_handler = (void *)handler;
76 sa.sa_flags = mask_flags;
77 sigemptyset(&sa.sa_mask);
78 sigaddset(&sa.sa_mask, sig);
79
80 return ltp_rt_sigaction(sig, &sa, &oldaction, SIGSETSIZE);
81 }
82
main(int ac,char ** av)83 int main(int ac, char **av)
84 {
85 unsigned int flag;
86 int signal;
87 int lc;
88
89 tst_parse_opts(ac, av, NULL, NULL);
90
91 setup();
92
93 for (lc = 0; TEST_LOOPING(lc); ++lc) {
94
95 tst_count = 0;
96
97 for (testno = 0; testno < TST_TOTAL; ++testno) {
98
99 for (signal = SIGRTMIN; signal <= SIGRTMAX; signal++) {
100 for (flag = 0;
101 flag <
102 ARRAY_SIZE(test_flags); flag++) {
103
104 TEST(set_handler
105 (signal, 0, test_flags[flag]));
106
107 if (TEST_RETURN == 0) {
108 tst_resm(TINFO, "signal: %d ",
109 signal);
110 tst_resm(TPASS,
111 "rt_sigaction call succeeded: result = %ld ",
112 TEST_RETURN);
113 tst_resm(TINFO,
114 "sa.sa_flags = %s ",
115 test_flags_list[flag]);
116 kill(getpid(), signal);
117 } else {
118 tst_resm(TFAIL | TTERRNO,
119 "rt_sigaction call "
120 "failed");
121 }
122
123 }
124
125 }
126
127 }
128
129 }
130 cleanup();
131 tst_exit();
132 }
133