| /* |
| * |
| * 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 |
| * rename12 |
| * |
| * DESCRIPTION |
| * check rename() fails with EPERM or EACCES |
| * |
| * ALGORITHM |
| * Setup: |
| * Setup signal handling. |
| * Create temporary directory. |
| * Pause for SIGUSR1 if option specified. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * create a directory fdir and set the sticky bit |
| * create file fname under fdir |
| * fork a child |
| * set to nobody |
| * try to rename fname to mname |
| * check the return value, if succeeded (return=0) |
| * Log the errno and Issue a FAIL message. |
| * Otherwise, |
| * Verify the errno |
| * if equals to EPERMS or EACCES, |
| * Issue Pass message. |
| * Otherwise, |
| * Issue Fail message. |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * Delete the temporary directory created. |
| * USAGE |
| * rename12 [-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 |
| * 07/2001 Ported by Wayne Boyer |
| * |
| * RESTRICTIONS |
| * Must run test as root. |
| * |
| */ |
| #include <errno.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <fcntl.h> |
| #include <pwd.h> |
| #include <unistd.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| void setup(); |
| void cleanup(); |
| extern void do_file_setup(char *); |
| extern struct passwd *my_getpwnam(char *); |
| |
| #define PERMS 0777 |
| |
| char user1name[] = "nobody"; |
| char user2name[] = "bin"; |
| |
| char *TCID = "rename12"; /* Test program identifier. */ |
| int TST_TOTAL = 1; /* Total number of test cases. */ |
| extern int Tst_count; /* Test Case counter for tst_* routines */ |
| |
| int fd; |
| char fdir[255]; |
| char fname[255], mname[255]; |
| struct passwd *nobody; |
| struct stat buf1; |
| |
| int exp_enos[] = { EPERM, 0 }; /* List must end with 0 */ |
| |
| 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, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| /* |
| * perform global setup for test |
| */ |
| setup(); |
| |
| /* set the expected errnos... */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* |
| * check looping state if -i option given |
| */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| /* reset Tst_count in case we are looping. */ |
| Tst_count = 0; |
| |
| /* |
| * rename a file whose parent directory has |
| * the sticky bit set without root permission |
| * or effective uid |
| */ |
| |
| if ((pid = FORK_OR_VFORK()) == -1) { |
| tst_brkm(TBROK, cleanup, "fork() failed"); |
| } |
| |
| if (pid == 0) { /* child */ |
| /* set to nobody */ |
| if (seteuid(nobody->pw_uid) == -1) { |
| tst_resm(TWARN, "setreuid failed"); |
| perror("setreuid"); |
| exit(1); |
| } |
| |
| /* rename "old" to "new" */ |
| TEST(rename(fname, mname)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| exit(1); |
| } |
| |
| TEST_ERROR_LOG(TEST_ERRNO); |
| |
| if ((TEST_ERRNO != EPERM) && (TEST_ERRNO != EACCES)) { |
| tst_resm(TFAIL, |
| "Expected EPERM or EACCES, got %d", |
| TEST_ERRNO); |
| exit(1); |
| } else { |
| tst_resm(TPASS, |
| "rename returned EPERM or EACCES"); |
| } |
| |
| /* set the id back to root */ |
| if (seteuid(0) == -1) { |
| tst_resm(TWARN, "seteuid(0) failed"); |
| } |
| } else { /* parent */ |
| wait(&status); |
| if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) { |
| exit(WEXITSTATUS(status)); |
| } else { |
| exit(0); |
| } |
| |
| } |
| } /* End for TEST_LOOPING */ |
| |
| cleanup(); |
| tst_exit(); |
| |
| } |
| |
| /* |
| * setup() - performs all ONE TIME setup for this test. |
| */ |
| void setup() |
| { |
| /* must run as root */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, NULL, "Must run this as root"); |
| } |
| |
| /* capture signals */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* Create a temporary directory and make it current. */ |
| tst_tmpdir(); |
| |
| umask(0); |
| |
| sprintf(fdir, "./tdir_%d", getpid()); |
| sprintf(fname, "%s/tfile_%d", fdir, getpid()); |
| sprintf(mname, "%s/rnfile_%d", fdir, getpid()); |
| |
| /* create a directory */ |
| if (mkdir(fdir, PERMS) == -1) { |
| tst_brkm(TBROK, cleanup, "Could not create directory %s", fdir); |
| } |
| |
| if (stat(fdir, &buf1) == -1) { |
| tst_brkm(TBROK, cleanup, "failed to stat directory %s", fdir); |
| |
| } |
| |
| /* set the sticky bit */ |
| if (chmod(fdir, buf1.st_mode | S_ISVTX) != 0) { |
| tst_brkm(TBROK, cleanup, "failed to set the S_ISVTX bit"); |
| |
| } |
| |
| /* create a file under fdir */ |
| do_file_setup(fname); |
| |
| /* get nobody password file info */ |
| nobody = 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; |
| |
| /* |
| * Remove the temporary directory. |
| */ |
| tst_rmdir(); |
| } |