| /* |
| * |
| * Copyright (C) Bull S.A. 2001 |
| * 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 |
| * fchdir03 |
| * |
| * DESCRIPTION |
| * Testcase for testing that fchdir(2) sets EACCES errno |
| * |
| * ALGORITHM |
| * 1. create a child process, sets its uid to ltpuser1 |
| * 2. this child creates a directory with perm 400, |
| * 3. this child opens the directory and gets a file descriptor |
| * 4. this child attempts to fchdir(2) to the directory created in 2. |
| * and expects to get an EACCES. |
| * 5. finally this child checks the return code, |
| * resets the process ID to root and calls cleanup. |
| * |
| * USAGE: <for command-line> |
| * fchdir03 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -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 |
| * 04/2002 Ported by Jacky Malcles |
| * |
| * RESTRICTIONS |
| * This test must be run as root. |
| */ |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <pwd.h> |
| #include <sys/wait.h> |
| |
| char *TCID = "fchdir03"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| |
| void setup(void); |
| void cleanup(void); |
| |
| char user1name[] = "nobody"; |
| |
| int exp_enos[] = {EACCES, 0}; |
| |
| char good_dir[100]; |
| int fd; |
| |
| struct passwd *ltpuser1; |
| |
| extern struct passwd *my_getpwnam(char *); |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| |
| pid_t pid; |
| int status; |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){ |
| tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); |
| |
| /* set up the expected errnos */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* check for 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; |
| |
| if ((pid = FORK_OR_VFORK()) < 0) { |
| tst_brkm(TBROK, cleanup, "fork failed"); |
| } |
| |
| if (pid == 0) { /* child */ |
| /* |
| * set the child's ID to ltpuser1 using seteuid() |
| * so that the ID can be changed back after the |
| * TEST call is made. |
| */ |
| if (seteuid(ltpuser1->pw_uid) != 0) { |
| tst_resm(TINFO, "setreuid failed in child #1"); |
| exit(1); |
| } |
| if (mkdir(good_dir, 00400) != 0) { |
| tst_resm(TINFO, "mkdir failed in child #1"); |
| exit(1); |
| } |
| if ((fd = open(good_dir, O_RDONLY)) == -1) { |
| tst_brkm(TBROK, cleanup, "open of directory failed"); |
| } |
| |
| |
| TEST(fchdir(fd)); |
| |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| } else if (TEST_ERRNO != EACCES) { |
| tst_resm(TFAIL, "expected EACCES - got %d", |
| TEST_ERRNO); |
| } else { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| tst_resm(TPASS, "expected failure - errno = %d" |
| " : %s", TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| } |
| |
| /* reset the process ID to the saved ID (root) */ |
| if (setuid(0) == -1) { |
| tst_resm(TINFO, "setuid(0) failed"); |
| } |
| |
| } else { /* parent */ |
| wait(&status); |
| |
| /* let the child carry on */ |
| exit(0); |
| } |
| |
| /* clean up things in case we are looping */ |
| if (rmdir(good_dir) == -1) { |
| tst_brkm(TBROK, cleanup, "Couldn't remove directory"); |
| } |
| |
| } |
| cleanup(); |
| |
| /*NOTREACHED*/ |
| return 0; |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void |
| setup() |
| { |
| char *cur_dir = NULL; |
| |
| /* make sure the process ID is root */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, tst_exit, "Test must be run as root."); |
| } |
| |
| /* capture signals */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* make a temporary directory and cd to it */ |
| tst_tmpdir(); |
| |
| /* get the currect directory name */ |
| if ((cur_dir = getcwd(cur_dir, 0)) == NULL) { |
| tst_brkm(TBROK, cleanup, "Couldn't get current directory name"); |
| } |
| |
| sprintf(good_dir, "%s.%d", cur_dir, getpid()); |
| |
| ltpuser1 = my_getpwnam(user1name); |
| } |
| |
| /* |
| * 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; |
| |
| /* |
| * Delete the test directory created in setup(). |
| */ |
| tst_rmdir(); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |