146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* NAME
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* getpgid01.c
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*
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* DESCRIPTION
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* Testcase to check the basic functionality of getpgid().
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*
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* ALGORITHM
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* block1: Does getpgid(0), and checks for error.
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* block2: Does getpgid(getpid()) and checks for error.
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* block3: Does getpgid(getppid()) and checks for error.
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* block4: Verifies that getpgid(getpgid(0)) == getpgid(0).
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* block5: Does getpgid(1) and checks for error.
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*
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* USAGE
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* getpgid01
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS
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* Expects that there are no EPERM limitations on getting the
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* process group ID from proc 1 (init).
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*/
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#define _GNU_SOURCE 1
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#include <errno.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include "test.h"
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void setup(void);
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void cleanup(void);
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char *TCID = "getpgid01";
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int TST_TOTAL = 1;
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int main(int ac, char **av)
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{
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int lc;
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register int pgid_0, pgid_1;
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register int my_pid, my_ppid;
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int ex_stat;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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if ((pgid_0 = FORK_OR_VFORK()) == -1)
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tst_brkm(TBROK, cleanup, "fork failed");
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if (pgid_0 > 0) {
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while ((pgid_0 = wait(&ex_stat)) != -1) ;
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if (WEXITSTATUS(ex_stat) == 0)
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tst_resm(TPASS, "%s PASSED", TCID);
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else
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tst_resm(TFAIL, "%s FAILED", TCID);
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exit(0);
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}
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if ((pgid_0 = getpgid(0)) == -1)
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tst_resm(TFAIL | TERRNO, "getpgid(0) failed");
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else
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tst_resm(TPASS, "getpgid(0) PASSED");
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//block2:
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my_pid = getpid();
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if ((pgid_1 = getpgid(my_pid)) == -1)
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tst_resm(TFAIL | TERRNO, "getpgid(%d) failed", my_pid);
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if (pgid_0 != pgid_1) {
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tst_resm(TFAIL, "getpgid(my_pid=%d) != getpgid(0) "
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"[%d != %d]", my_pid, pgid_1, pgid_0);
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} else
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tst_resm(TPASS, "getpgid(getpid()) PASSED");
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//block3:
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my_ppid = getppid();
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if ((pgid_1 = getpgid(my_ppid)) == -1)
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tst_resm(TFAIL | TERRNO, "getpgid(%d) failed", my_ppid);
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if (pgid_0 != pgid_1) {
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tst_resm(TFAIL, "getpgid(%d) != getpgid(0) [%d != %d]",
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my_ppid, pgid_1, pgid_0);
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} else
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tst_resm(TPASS, "getpgid(getppid()) PASSED");
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//block4:
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if ((pgid_1 = getpgid(pgid_0)) < 0)
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tst_resm(TFAIL | TERRNO, "getpgid(%d) failed", pgid_0);
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if (pgid_0 != pgid_1) {
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tst_resm(TFAIL, "getpgid(%d) != getpgid(0) [%d != %d]",
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pgid_0, pgid_1, pgid_0);
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} else
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tst_resm(TPASS, "getpgid(%d) PASSED", pgid_0);
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//block5:
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if (getpgid(1) < 0)
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tst_resm(TFAIL | TERRNO, "getpgid(1) failed");
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else
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tst_resm(TPASS, "getpgid(1) PASSED");
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}
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cleanup();
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tst_exit();
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}
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void setup(void)
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{
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tst_sig(FORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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}
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void cleanup(void)
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{
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}
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