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 "linux_syscall_numbers.h"
41#include "lapi/rt_sigaction.h"
42
43char *TCID = "rt_sigaction01";
44static int testno;
45int TST_TOTAL = 1;
46
47static void cleanup(void)
48{
49	tst_rmdir();
50}
51
52static void setup(void)
53{
54	TEST_PAUSE;
55	tst_tmpdir();
56}
57
58static int test_flags[] =
59    { SA_RESETHAND | SA_SIGINFO, SA_RESETHAND, SA_RESETHAND | SA_SIGINFO,
60SA_RESETHAND | SA_SIGINFO, SA_NOMASK };
61char *test_flags_list[] =
62    { "SA_RESETHAND|SA_SIGINFO", "SA_RESETHAND", "SA_RESETHAND|SA_SIGINFO",
63"SA_RESETHAND|SA_SIGINFO", "SA_NOMASK" };
64
65static void handler(int sig)
66{
67	tst_resm(TINFO, "Signal Handler Called with signal number %d\n", sig);
68	return;
69}
70
71static 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
83int 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