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 (at) 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 47 static void cleanup(void) 48 { 49 tst_rmdir(); 50 } 51 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 65 static void handler(int sig) 66 { 67 tst_resm(TINFO, "Signal Handler Called with signal number %d\n", sig); 68 return; 69 } 70 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 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
