| /* |
| * Copyright (c) International Business Machines Corp., 2001 |
| * Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved. |
| * Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * 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 to check the error and trivial conditions in setpgid system call |
| * |
| * EPERM - The calling process, process specified by pid and the target |
| * process group must be in the same session. |
| * |
| * EACCESS - Proccess cannot change process group ID of a child after child |
| * has performed exec() |
| */ |
| |
| #include <wait.h> |
| #include <limits.h> |
| #include <signal.h> |
| #include <errno.h> |
| #include <sys/param.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include "test.h" |
| |
| #define TEST_APP "setpgid03_child" |
| |
| char *TCID = "setpgid03"; |
| int TST_TOTAL = 1; |
| |
| static struct tst_checkpoint checkpoint; |
| |
| static void do_child(void); |
| static void setup(void); |
| static void cleanup(void); |
| |
| int main(int ac, char **av) |
| { |
| int child_pid; |
| int status; |
| int rval; |
| int lc; |
| const char *msg; |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| #ifdef UCLINUX |
| maybe_run_child(&do_child, ""); |
| #endif |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| /* Child is in new session we are not alowed to change pgid */ |
| if ((child_pid = FORK_OR_VFORK()) == -1) |
| tst_brkm(TBROK, cleanup, "fork() failed"); |
| |
| if (child_pid == 0) { |
| #ifdef UCLINUX |
| if (self_exec(av[0], "") < 0) |
| tst_brkm(TBROK, cleanup, "self_exec failed"); |
| #else |
| do_child(); |
| #endif |
| } |
| |
| TST_CHECKPOINT_PARENT_WAIT(cleanup, &checkpoint); |
| rval = setpgid(child_pid, getppid()); |
| if (rval == -1 && errno == EPERM) { |
| tst_resm(TPASS, "setpgid failed with EPERM"); |
| } else { |
| tst_resm(TFAIL, |
| "retval %d, errno %d, expected errno %d", |
| rval, errno, EPERM); |
| } |
| TST_CHECKPOINT_SIGNAL_CHILD(cleanup, &checkpoint); |
| |
| if (wait(&status) < 0) |
| tst_resm(TFAIL | TERRNO, "wait() for child 1 failed"); |
| |
| if (!(WIFEXITED(status)) || (WEXITSTATUS(status) != 0)) |
| tst_resm(TFAIL, "child 1 failed with status %d", |
| WEXITSTATUS(status)); |
| |
| /* Child after exec() we are no longer allowed to set pgid */ |
| if ((child_pid = FORK_OR_VFORK()) == -1) |
| tst_resm(TFAIL, "Fork failed"); |
| |
| if (child_pid == 0) { |
| if (execlp(TEST_APP, TEST_APP, NULL) < 0) |
| perror("exec failed"); |
| |
| exit(127); |
| } |
| |
| TST_CHECKPOINT_PARENT_WAIT(cleanup, &checkpoint); |
| rval = setpgid(child_pid, getppid()); |
| if (rval == -1 && errno == EACCES) { |
| tst_resm(TPASS, "setpgid failed with EACCES"); |
| } else { |
| tst_resm(TFAIL, |
| "retval %d, errno %d, expected errno %d", |
| rval, errno, EACCES); |
| } |
| TST_CHECKPOINT_SIGNAL_CHILD(cleanup, &checkpoint); |
| |
| if (wait(&status) < 0) |
| tst_resm(TFAIL | TERRNO, "wait() for child 2 failed"); |
| |
| if (!(WIFEXITED(status)) || (WEXITSTATUS(status) != 0)) |
| tst_resm(TFAIL, "child 2 failed with status %d", |
| WEXITSTATUS(status)); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |
| |
| static void do_child(void) |
| { |
| if (setsid() < 0) { |
| printf("CHILD: setsid() failed, errno: %d\n", errno); |
| exit(2); |
| } |
| |
| TST_CHECKPOINT_SIGNAL_PARENT(&checkpoint); |
| |
| TST_CHECKPOINT_CHILD_WAIT(&checkpoint); |
| |
| exit(0); |
| } |
| |
| static void setup(void) |
| { |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| tst_tmpdir(); |
| |
| TST_CHECKPOINT_CREATE(&checkpoint); |
| checkpoint.timeout = 10000; |
| |
| umask(0); |
| |
| TEST_PAUSE; |
| } |
| |
| static void cleanup(void) |
| { |
| tst_rmdir(); |
| } |