1 /* 2 * 3 * Copyright (c) International Business Machines Corp., 2001 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 13 * the GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 /* 21 * NAME 22 * signal05.c 23 * 24 * DESCRIPTION 25 * signal05 - set the signal handler to our own function 26 * 27 * ALGORITHM 28 * loop if that option was specified 29 * issue the system call 30 * check the return value 31 * if return value == -1 32 * issue a FAIL message, break remaining tests and cleanup 33 * if we are doing functional testing 34 * send the signal with kill() 35 * if we catch the signal in the signal handler 36 * issue a PASS message 37 * else 38 * issue a FAIL message 39 * call cleanup 40 * 41 * USAGE: <for command-line> 42 * signal05 [-c n] [-f] [-i n] [-I x] [-p x] [-t] 43 * where, -c n : Run n copies concurrently. 44 * -f : Turn off functionality Testing. 45 * -i n : Execute test n times. 46 * -I x : Execute test for x seconds. 47 * -P x : Pause for x seconds between iterations. 48 * -t : Turn on syscall timing. 49 * 50 * History 51 * 07/2001 John George 52 * -Ported 53 * 54 * Restrictions 55 * none 56 */ 57 58 #include "test.h" 59 60 #include <errno.h> 61 #include <signal.h> 62 63 void cleanup(void); 64 void setup(void); 65 void sighandler(int); 66 67 int siglist[] = { SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGTRAP, SIGABRT, SIGIOT, 68 SIGBUS, SIGFPE, SIGUSR1, SIGSEGV, SIGUSR2, SIGPIPE, SIGALRM, 69 SIGTERM, 70 #ifdef SIGSTKFLT 71 SIGSTKFLT, 72 #endif 73 SIGCHLD, SIGCONT, SIGTSTP, SIGTTIN, 74 SIGTTOU, SIGURG, SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, 75 SIGWINCH, SIGIO, SIGPWR, SIGSYS, 76 #ifdef SIGUNUSED 77 SIGUNUSED 78 #endif 79 }; 80 81 char *TCID = "signal05"; 82 int TST_TOTAL = ARRAY_SIZE(siglist); 83 84 typedef void (*sighandler_t) (int); 85 86 sighandler_t Tret; 87 88 int pass = 0; 89 90 int main(int ac, char **av) 91 { 92 int lc; 93 pid_t pid; 94 int i, rval; 95 96 tst_parse_opts(ac, av, NULL, NULL); 97 98 setup(); /* global setup */ 99 100 /* The following loop checks looping state if -i option given */ 101 102 for (lc = 0; TEST_LOOPING(lc); lc++) { 103 /* reset tst_count in case we are looping */ 104 tst_count = 0; 105 106 /* 107 * loop through the list of signals and test each one 108 */ 109 for (i = 0; i < TST_TOTAL; i++) { 110 111 errno = 0; 112 Tret = signal(siglist[i], &sighandler); 113 TEST_ERRNO = errno; 114 115 if (Tret == SIG_ERR) { 116 tst_resm(TFAIL, "%s call failed - errno = %d " 117 ": %s", TCID, TEST_ERRNO, 118 strerror(TEST_ERRNO)); 119 continue; 120 } 121 122 /* 123 * Send the signals and make sure they are 124 * handled in our handler. 125 */ 126 pid = getpid(); 127 128 if ((rval = kill(pid, siglist[i])) != 0) { 129 tst_brkm(TBROK, cleanup, 130 "call to kill failed"); 131 } 132 133 if (siglist[i] == pass) { 134 tst_resm(TPASS, 135 "%s call succeeded", TCID); 136 } else { 137 tst_resm(TFAIL, 138 "received unexpected signal"); 139 } 140 } 141 } 142 143 cleanup(); 144 tst_exit(); 145 } 146 147 /* 148 * sighandler() - handle the signals 149 */ 150 void sighandler(int sig) 151 { 152 /* set the global pass variable = sig */ 153 pass = sig; 154 } 155 156 /* 157 * setup() - performs all the ONE TIME setup for this test. 158 */ 159 void setup(void) 160 { 161 TEST_PAUSE; 162 } 163 164 /* 165 * cleanup() - performs all the ONE TIME cleanup for this test at completion 166 * or premature exit. 167 */ 168 void cleanup(void) 169 { 170 171 } 172
