| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * NAME |
| * kill07.c |
| * |
| * DESCRIPTION |
| * Test case to check that SIGKILL can not be caught. |
| * |
| * ALGORITHM |
| * call setup |
| * setup some shared memory |
| * loop if the -i option was given |
| * set up to catch SIGKILL |
| * if SIGKILL is caught set the shared memory flag. |
| * fork a child |
| * execute the kill system call |
| * check the return value |
| * if return value is -1 |
| * issue a FAIL message, break remaining tests and cleanup |
| * if we are doing functional testing |
| * if the process was terminated with the expected signal and the |
| * signal was not caught. |
| * issue a PASS message |
| * otherwise |
| * issue a FAIL message |
| * call cleanup |
| * |
| * USAGE |
| * kill07 [-c n] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * This test should be run as a non-root user. |
| */ |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #include <signal.h> |
| #include <errno.h> |
| #include <sys/ipc.h> |
| #include <sys/shm.h> |
| #include <sys/wait.h> |
| |
| void cleanup(void); |
| void setup(void); |
| void sighandler(int sig); |
| void do_child(void); |
| |
| char *TCID= "kill07"; |
| int TST_TOTAL = 1; |
| int shmid1; |
| #ifndef CONFIG_COLDFIRE |
| key_t semkey; |
| #else |
| extern key_t semkey; |
| #endif |
| int *flag; |
| |
| extern int Tst_count; |
| extern int getipckey(); |
| extern void rm_shm(int); |
| |
| #define TEST_SIG SIGKILL |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| pid_t pid; |
| int exno, status, nsig, asig, ret; |
| struct sigaction my_act, old_act; |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| #ifdef UCLINUX |
| maybe_run_child(&do_child, ""); |
| #endif |
| |
| setup(); /* global setup */ |
| |
| /* The following loop checks looping state if -i option given */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| /* reset Tst_count in case we are looping */ |
| Tst_count = 0; |
| status = 1; |
| exno = 1; |
| my_act.sa_handler = sighandler; |
| my_act.sa_flags = SA_RESTART; |
| sigemptyset(&my_act.sa_mask); |
| |
| if ((shmid1 = shmget(semkey, (int)getpagesize(), \ |
| 0666|IPC_CREAT)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "Failed to setup shared memory"); |
| } |
| |
| if (*(flag = (int *)shmat(shmid1, 0, 0)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "Failed to attatch shared memory:%d", *flag); |
| } |
| |
| *flag = 0; |
| |
| /* setup the signal handler */ |
| ret = sigaction(TEST_SIG, &my_act, &old_act); |
| |
| pid = FORK_OR_VFORK(); |
| if (pid < 0) { |
| tst_brkm(TBROK, cleanup, "Fork of child failed"); |
| } else if (pid == 0) { |
| #ifdef UCLINUX |
| if (self_exec(av[0], "") < 0) { |
| tst_brkm(TBROK, cleanup, "self_exec of child failed"); |
| } |
| #else |
| do_child(); |
| #endif |
| } else { |
| /* sighandler should not catch this signal */ |
| /* if it does flag will be set to 1 */ |
| sleep(1); |
| TEST(kill(pid, TEST_SIG)); |
| waitpid(pid, &status, 0); |
| } |
| |
| if (TEST_RETURN == -1) { |
| tst_brkm(TFAIL, cleanup, "%s failed - errno = %d : %s", |
| TCID, TEST_ERRNO, strerror(TEST_ERRNO)); |
| /*NOTREACHED*/ |
| } |
| |
| if (STD_FUNCTIONAL_TEST) { |
| /* |
| * Check to see if the process was terminated with the |
| * expected signal. |
| */ |
| nsig = WTERMSIG(status); |
| asig = WIFSIGNALED(status); |
| if ((asig == 0) & (*flag == 1)) { |
| tst_resm(TFAIL, "SIGKILL was unexpectedly" |
| " caught"); |
| } else if ((asig == 1) & (nsig == TEST_SIG)) { |
| tst_resm(TINFO, "received expected signal %d", |
| nsig); |
| tst_resm(TPASS, |
| "Did not catch signal as expected"); |
| } else if (nsig) { |
| tst_resm(TFAIL, |
| "expected signal %d received %d", |
| TEST_SIG,nsig); |
| } else { |
| tst_resm(TFAIL, "No signals received"); |
| } |
| } |
| if (shmdt(flag)) { |
| tst_brkm(TBROK, cleanup, "shmdt failed "); |
| /*NOTREACHED*/ |
| } |
| } |
| cleanup(); |
| |
| /*NOTREACHED*/ |
| return(0); |
| } |
| |
| /* |
| * sighandler() - try to catch SIGKILL |
| */ |
| |
| void |
| sighandler(int sig) |
| { |
| /* do nothing */ |
| *flag = 1; |
| return; |
| } |
| |
| /* |
| * do_child() |
| */ |
| void |
| do_child() |
| { |
| int exno = 1; |
| |
| sleep(300); |
| /*NOTREACHED*/ |
| tst_resm(TINFO, "Child never recieved a signal"); |
| exit(exno); |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test |
| */ |
| void |
| setup(void) |
| { |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* get an IPC resource key */ |
| semkey = getipckey(); |
| |
| } |
| |
| /* |
| * cleanup() - performs all the ONE TIME cleanup for this test at completion |
| * or premature exit. |
| */ |
| void |
| cleanup(void) |
| { |
| /* |
| * print timing status if that option was specified. |
| * print errno log if that option was specified |
| */ |
| TEST_CLEANUP; |
| |
| /* |
| * remove the shared memory |
| */ |
| rm_shm(shmid1); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |