| /* |
| * |
| * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * Test Name: sigprocmask01 |
| * |
| * Test Description: |
| * Verify that sigprocmask() succeeds to examine and change the calling |
| * process's signal mask. |
| * Also, verify that sigpending() succeeds to store signal mask that are |
| * blocked from delivery and pending for the calling process. |
| * |
| * Expected Result: |
| * - sigprocmask() should return value 0 on successs and succeed to change |
| * calling process's set of blocked/unblocked signals. |
| * - sigpending() should succeed to store the signal mask of pending signal. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Execute system call |
| * Check return code, if system call failed (return=-1) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the Functionality of system call |
| * if successful, |
| * Issue Functionality-Pass message. |
| * Otherwise, |
| * Issue Functionality-Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * |
| * Usage: <for command-line> |
| * sigprocmask01 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -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 John George |
| * -Ported |
| * |
| * Restrictions: |
| * None. |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <ucontext.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| void setup(); /* Main setup function of test */ |
| void cleanup(); /* cleanup function for the test */ |
| void sig_handler(int sig); /* signal catching function */ |
| |
| char *TCID = "sigprocmask01"; |
| int TST_TOTAL = 1; |
| int exp_enos[] = { 0 }; |
| |
| int sig_catch = 0; /* variable to blocked/unblocked signals */ |
| |
| struct sigaction sa_new; /* struct to hold signal info */ |
| sigset_t sigset; /* signal set to hold signal lists */ |
| sigset_t sigset2; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| char *msg; |
| pid_t my_pid; /* test process id */ |
| |
| msg = parse_opts(ac, av, NULL, NULL); |
| if (msg != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| /*NOTREACED*/} |
| |
| setup(); |
| |
| /* set the expected errnos... */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* |
| * Call sigprocmask() to block (SIGINT) signal |
| * so that, signal will not be delivered to |
| * the test process. |
| */ |
| TEST(sigprocmask(SIG_BLOCK, &sigset, 0)); |
| |
| /* Get the process id of test process */ |
| my_pid = getpid(); |
| |
| /* Send SIGINT signal to the process */ |
| kill(my_pid, SIGINT); |
| |
| if (TEST_RETURN == -1) { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| tst_resm(TFAIL, |
| "sigprocmask() Failed, errno=%d : %s", |
| TEST_ERRNO, strerror(TEST_ERRNO)); |
| } else { |
| /* |
| * Perform functional verification if test |
| * executed without (-f) option. |
| */ |
| if (STD_FUNCTIONAL_TEST) { |
| /* |
| * Check whether process received the signal. |
| * If yes! signal handler was executed and |
| * incremented 'sig_catch' variable. |
| */ |
| if (sig_catch) { |
| tst_resm(TFAIL, "sigprocmask fails to " |
| "change process's signal mask"); |
| } else { |
| /* |
| * Check whether specified signal |
| * 'SIGINT' is pending for the process. |
| */ |
| errno = 0; |
| if (sigpending(&sigset2) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "blocked signal not " |
| "in pending state, " |
| "error:%d", errno); |
| } |
| |
| /* |
| * Check whether specified signal |
| * is the member of signal set. |
| */ |
| errno = 0; |
| if (!sigismember(&sigset2, SIGINT)) { |
| tst_brkm(TFAIL, cleanup, |
| "sigismember() failed, " |
| "error:%d", errno); |
| } |
| |
| /* |
| * Invoke sigprocmask() again to |
| * unblock the specified signal. |
| * so that, signal is delivered and |
| * signal handler executed. |
| */ |
| errno = 0; |
| if (sigprocmask(SIG_UNBLOCK, |
| &sigset, 0) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "sigprocmask() failed " |
| "to unblock signal, " |
| "error=%d", errno); |
| } |
| if (sig_catch) { |
| tst_resm(TPASS, "Functionality " |
| "of sigprocmask() " |
| "Successful"); |
| } else { |
| tst_resm(TFAIL, "Functionality " |
| "of sigprocmask() " |
| "Failed"); |
| } |
| /* set sig_catch back to 0 */ |
| sig_catch = 0; |
| } |
| } else { |
| tst_resm(TPASS, "Call succeeded"); |
| } |
| } |
| |
| tst_count++; /* incr TEST_LOOP counter */ |
| } |
| |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * void |
| * setup() - performs all ONE TIME setup for this test. |
| * Initialise signal set with the list that includes/excludes |
| * all system-defined signals. |
| * Set the signal handler to catch SIGINT signal. |
| * Add the signal SIGINT to the exclude list of system-defined |
| * signals for the test process. |
| */ |
| void setup() |
| { |
| |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| TEST_PAUSE; |
| |
| /* |
| * Initialise the signal sets with the list that |
| * excludes/includes all system-defined signals. |
| */ |
| if (sigemptyset(&sigset) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "sigemptyset() failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| if (sigfillset(&sigset2) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "sigfillset() failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| |
| /* Set the signal handler function to catch the signal */ |
| sa_new.sa_handler = sig_handler; |
| if (sigaction(SIGINT, &sa_new, 0) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "sigaction() failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| |
| /* |
| * Add specified signal (SIGINT) to the signal set |
| * which excludes system-defined signals. |
| */ |
| if (sigaddset(&sigset, SIGINT) == -1) { |
| tst_brkm(TFAIL, cleanup, |
| "sigaddset() failed, errno=%d : %s", |
| errno, strerror(errno)); |
| } |
| } |
| |
| /* |
| * void |
| * sig_handler(int sig) - Signal catching function. |
| * This function gets executed when the signal SIGINT is delivered |
| * to the test process and the signal was trapped by sigaction() |
| * to execute this function. |
| * This function when executed, increments a global variable value |
| * which will be accessed in the test. |
| */ |
| void sig_handler(int sig) |
| { |
| /* Increment the sig_catch variable */ |
| sig_catch++; |
| } |
| |
| /* |
| * void |
| * cleanup() - performs all ONE TIME cleanup for this test at |
| * completion or premature exit. |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| } |