| /* |
| * |
| * 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 |
| */ |
| |
| /* |
| * Test Name: getpid02 |
| * |
| * Test Description: |
| * Verify that getpid() system call gets the process ID of the of the |
| * calling process. |
| * |
| * Expected Result: |
| * getpid() should return pid of the process on success. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * 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 |
| * |
| * Usage: <for command-line> |
| * getpid02 [-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: |
| * None. |
| */ |
| |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <signal.h> |
| #include <sys/wait.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| void setup(); /* Main setup function of test */ |
| void cleanup(); /* cleanup function for the test */ |
| |
| char *TCID="getpid02"; /* Test program identifier. */ |
| int TST_TOTAL=1; /* Total number of test cases. */ |
| extern int Tst_count; /* Test Case counter for tst_* routines */ |
| |
| int |
| main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| pid_t proc_id; /* process id of the test process */ |
| pid_t pid; /* process id of the child process */ |
| pid_t pproc_id; /* parent process id */ |
| int status; /* exit status of child process */ |
| |
| /* Parse standard options given to run the test. */ |
| msg = parse_opts(ac, av, (option_t *) NULL, NULL); |
| if (msg != (char *) NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| } |
| |
| /* Perform global setup for test */ |
| setup(); |
| |
| /* Check looping state if -i option given */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* Reset Tst_count in case we are looping. */ |
| Tst_count=0; |
| |
| /* |
| * Invoke getpid() to get the process id of |
| * the test process. |
| */ |
| TEST(getpid()); |
| |
| /* Save the process id returned by getpid() */ |
| proc_id = TEST_RETURN; |
| |
| /* |
| * Perform functional verification if test |
| * executed without (-f) option. |
| */ |
| if (STD_FUNCTIONAL_TEST) { |
| /* Fork a child now */ |
| if ((pid = FORK_OR_VFORK()) < 0) { |
| tst_resm(TFAIL, "fork() failed to create child," |
| " error=%d", TEST_ERRNO); |
| } else if (pid == 0) { /* Child process */ |
| /* Get the parent process id */ |
| pproc_id = getppid(); |
| |
| /* Verify if the two process IDs match */ |
| if (pproc_id != proc_id) { |
| exit(1); |
| } |
| exit(0); |
| } else { /* parent process */ |
| wait(&status); |
| |
| /* Check exit status of child */ |
| if (WEXITSTATUS(status) != 0) { |
| tst_resm(TFAIL, "getpid() returned " |
| "invalid pid %d", proc_id); |
| } else { |
| tst_resm(TPASS, "Functionality of " |
| "getpid() successful"); |
| } |
| } |
| } else { |
| tst_resm(TPASS, "call succeeded"); |
| } |
| } /* End for TEST_LOOPING */ |
| |
| /* Call cleanup() to undo setup done for the test. */ |
| cleanup(); |
| |
| /*NOTREACHED*/ |
| return 0; |
| } /* End main */ |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| * Setup signal catching function. |
| */ |
| void |
| setup() |
| { |
| /* capture signals */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| } |
| |
| |
| /* |
| * 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; |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |