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 #define _GNU_SOURCE
32 #include <stdio.h>
33 #include <stdlib.h>
34 #include <unistd.h>
35 #include <signal.h>
36 #include <errno.h>
37 #include <sys/syscall.h>
38 #include <string.h>
39
40 #include "test.h"
41 #include "lapi/syscalls.h"
42 #include "lapi/rt_sigaction.h"
43
44 char *TCID = "rt_sigaction01";
45 static int testno;
46 int TST_TOTAL = 1;
47
cleanup(void)48 static void cleanup(void)
49 {
50 tst_rmdir();
51 }
52
setup(void)53 static void setup(void)
54 {
55 TEST_PAUSE;
56 tst_tmpdir();
57 }
58
59 static int test_flags[] =
60 { SA_RESETHAND | SA_SIGINFO, SA_RESETHAND, SA_RESETHAND | SA_SIGINFO,
61 SA_RESETHAND | SA_SIGINFO, SA_NOMASK };
62 char *test_flags_list[] =
63 { "SA_RESETHAND|SA_SIGINFO", "SA_RESETHAND", "SA_RESETHAND|SA_SIGINFO",
64 "SA_RESETHAND|SA_SIGINFO", "SA_NOMASK" };
65
handler(int sig)66 static void handler(int sig)
67 {
68 tst_resm(TINFO, "Signal Handler Called with signal number %d", sig);
69 return;
70 }
71
set_handler(int sig,int sig_to_mask,int mask_flags)72 static int set_handler(int sig, int sig_to_mask, int mask_flags)
73 {
74 struct sigaction sa, oldaction;
75
76 sa.sa_handler = (void *)handler;
77 sa.sa_flags = mask_flags;
78 sigemptyset(&sa.sa_mask);
79 sigaddset(&sa.sa_mask, sig);
80
81 return ltp_rt_sigaction(sig, &sa, &oldaction, SIGSETSIZE);
82 }
83
main(int ac,char ** av)84 int main(int ac, char **av)
85 {
86 unsigned int flag;
87 int signal;
88 int lc;
89
90 tst_parse_opts(ac, av, NULL, NULL);
91
92 setup();
93
94 for (lc = 0; TEST_LOOPING(lc); ++lc) {
95
96 tst_count = 0;
97
98 for (testno = 0; testno < TST_TOTAL; ++testno) {
99
100 for (signal = SIGRTMIN; signal <= SIGRTMAX; signal++) {
101 for (flag = 0;
102 flag <
103 ARRAY_SIZE(test_flags); flag++) {
104
105 TEST(set_handler
106 (signal, 0, test_flags[flag]));
107
108 if (TEST_RETURN == 0) {
109 tst_resm(TINFO, "signal: %d ",
110 signal);
111 tst_resm(TPASS,
112 "rt_sigaction call succeeded: result = %ld ",
113 TEST_RETURN);
114 tst_resm(TINFO,
115 "sa.sa_flags = %s ",
116 test_flags_list[flag]);
117 kill(getpid(), signal);
118 } else {
119 tst_resm(TFAIL | TTERRNO,
120 "rt_sigaction call "
121 "failed");
122 }
123
124 }
125
126 }
127
128 }
129
130 }
131 cleanup();
132 tst_exit();
133 }
134