164 lines
3.8 KiB
C
164 lines
3.8 KiB
C
/*
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
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* Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz>
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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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* Test to check the error and trivial conditions in setpgid system call
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*
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* EPERM - The calling process, process specified by pid and the target
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* process group must be in the same session.
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*
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* EACCESS - Proccess cannot change process group ID of a child after child
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* has performed exec()
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*/
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#include <sys/wait.h>
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#include <limits.h>
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#include <signal.h>
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#include <errno.h>
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include "test.h"
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#define TEST_APP "setpgid03_child"
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char *TCID = "setpgid03";
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int TST_TOTAL = 1;
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static void do_child(void);
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static void setup(void);
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static void cleanup(void);
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int main(int ac, char **av)
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{
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int child_pid;
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int status;
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int rval;
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int lc;
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tst_parse_opts(ac, av, NULL, NULL);
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#ifdef UCLINUX
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maybe_run_child(&do_child, "");
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#endif
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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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/* Child is in new session we are not alowed to change pgid */
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if ((child_pid = FORK_OR_VFORK()) == -1)
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tst_brkm(TBROK, cleanup, "fork() failed");
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if (child_pid == 0) {
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#ifdef UCLINUX
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if (self_exec(av[0], "") < 0)
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tst_brkm(TBROK, cleanup, "self_exec failed");
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#else
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do_child();
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#endif
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}
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TST_SAFE_CHECKPOINT_WAIT(cleanup, 0);
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rval = setpgid(child_pid, getppid());
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if (rval == -1 && errno == EPERM) {
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tst_resm(TPASS, "setpgid failed with EPERM");
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} else {
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tst_resm(TFAIL,
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"retval %d, errno %d, expected errno %d",
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rval, errno, EPERM);
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}
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TST_SAFE_CHECKPOINT_WAKE(cleanup, 0);
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if (wait(&status) < 0)
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tst_resm(TFAIL | TERRNO, "wait() for child 1 failed");
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if (!(WIFEXITED(status)) || (WEXITSTATUS(status) != 0))
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tst_resm(TFAIL, "child 1 failed with status %d",
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WEXITSTATUS(status));
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/* Child after exec() we are no longer allowed to set pgid */
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if ((child_pid = FORK_OR_VFORK()) == -1)
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tst_resm(TFAIL, "Fork failed");
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if (child_pid == 0) {
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if (execlp(TEST_APP, TEST_APP, NULL) < 0)
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perror("exec failed");
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exit(127);
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}
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TST_SAFE_CHECKPOINT_WAIT(cleanup, 0);
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rval = setpgid(child_pid, getppid());
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if (rval == -1 && errno == EACCES) {
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tst_resm(TPASS, "setpgid failed with EACCES");
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} else {
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tst_resm(TFAIL,
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"retval %d, errno %d, expected errno %d",
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rval, errno, EACCES);
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}
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TST_SAFE_CHECKPOINT_WAKE(cleanup, 0);
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if (wait(&status) < 0)
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tst_resm(TFAIL | TERRNO, "wait() for child 2 failed");
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if (!(WIFEXITED(status)) || (WEXITSTATUS(status) != 0))
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tst_resm(TFAIL, "child 2 failed with status %d",
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WEXITSTATUS(status));
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}
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cleanup();
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tst_exit();
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}
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static void do_child(void)
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{
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if (setsid() < 0) {
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printf("CHILD: setsid() failed, errno: %d\n", errno);
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exit(2);
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}
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TST_SAFE_CHECKPOINT_WAKE(NULL, 0);
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TST_SAFE_CHECKPOINT_WAIT(NULL, 0);
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exit(0);
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}
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static void setup(void)
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{
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tst_sig(FORK, DEF_HANDLER, cleanup);
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tst_tmpdir();
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TST_CHECKPOINT_INIT(tst_rmdir);
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umask(0);
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TEST_PAUSE;
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}
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static void cleanup(void)
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{
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tst_rmdir();
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}
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