| /* |
| * |
| * 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 |
| * getppid02.c |
| * |
| * DESCRIPTION |
| * Testcase to check the basic functionality of the getppid() syscall. |
| * |
| * USAGE: <for command-line> |
| * getppid02 [-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 <wait.h> |
| #include <errno.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| char *TCID = "getppid02"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| |
| void setup(void); |
| void cleanup(void); |
| |
| int main(int ac, char **av) |
| { |
| int pid, ppid; |
| |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| |
| /* |
| * parse standard options |
| */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); |
| |
| /* |
| * check looping state if -i option is given |
| */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* |
| * reset Tst_count in case we are looping. |
| */ |
| Tst_count = 0; |
| |
| ppid = getpid(); |
| pid = FORK_OR_VFORK(); |
| if (pid < 0) { |
| tst_brkm(TBROK, cleanup, "fork() failed"); |
| } |
| |
| if (pid == 0) { /* child */ |
| TEST(getppid()); |
| |
| if (TEST_RETURN < 0) { |
| tst_resm(TFAIL, "something is really broken"); |
| continue; |
| } |
| |
| if (STD_FUNCTIONAL_TEST) { |
| if (TEST_RETURN != ppid) { |
| tst_resm(TFAIL, "getppid() failed"); |
| } else { |
| tst_resm(TPASS, "return value = " |
| "parent's pid value"); |
| } |
| } else { |
| tst_resm(TPASS, "call succeeded"); |
| } |
| |
| } else { |
| wait(NULL); |
| |
| /* let the child carry on */ |
| exit(0); |
| } |
| } |
| cleanup(); |
| |
| /*NOTREACHED*/ return 0; |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| 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(); |
| } |