394 lines
11 KiB
C
394 lines
11 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Test Name: stat03
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*
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* Test Description:
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* Verify that,
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* 1) stat(2) returns -1 and sets errno to EACCES if search permission is
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* denied on a component of the path prefix.
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* 2) stat(2) returns -1 and sets errno to ENOENT if the specified file
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* does not exists or empty string.
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* 3) stat(2) returns -1 and sets errno to EFAULT if pathname points
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* outside user's accessible address space.
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* 4) stat(2) returns -1 and sets errno to ENAMETOOLONG if the pathname
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* component is too long.
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* 5) stat(2) returns -1 and sets errno to ENOTDIR if the directory
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* component in pathname is not a directory.
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*
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* Expected Result:
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* stat() should fail with return value -1 and set expected errno.
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*
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* Algorithm:
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* Setup:
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* Setup signal handling.
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* Create temporary directory.
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* Pause for SIGUSR1 if option specified.
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*
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* Test:
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* Loop if the proper options are given.
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* Execute system call
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* Check return code, if system call failed (return=-1)
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* if errno set == expected errno
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* Issue sys call fails with expected return value and errno.
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* Otherwise,
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* Issue sys call fails with unexpected errno.
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* Otherwise,
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* Issue sys call returns unexpected value.
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*
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* Cleanup:
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* Print errno log and/or timing stats if options given
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* Delete the temporary directory(s)/file(s) created.
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*
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* Usage: <for command-line>
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* stat03 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* History
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* 07/2001 John George
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* -Ported
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*
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* Restrictions:
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <pwd.h>
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#include "test.h"
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#include "usctest.h"
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#define MODE_RWX S_IRWXU | S_IRWXG | S_IRWXO
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#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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#define DIR_TEMP "testdir_1"
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#define TEST_FILE1 "testdir_1/tfile_1"
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#define TEST_FILE2 "t_file/tfile_2"
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int no_setup();
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int setup1(); /* setup function to test chmod for EACCES */
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int setup2(); /* setup function to test chmod for ENOTDIR */
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int longpath_setup(); /* setup function to test chmod for ENAMETOOLONG */
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char nobody_uid[] = "nobody";
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struct passwd *ltpuser;
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char Longpathname[PATH_MAX+2];
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char High_address_node[64];
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struct test_case_t { /* test case struct. to hold ref. test cond's*/
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char *pathname;
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char *desc;
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int exp_errno;
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int (*setupfunc)();
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} Test_cases[] = {
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#ifndef __CYGWIN__
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{ TEST_FILE1, "No Search permissions to process", EACCES, setup1 },
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#endif
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{ High_address_node, "Address beyond address space", EFAULT, no_setup },
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{ (char *)-1, "Negative address", EFAULT, no_setup },
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{ Longpathname, "Pathname too long", ENAMETOOLONG, longpath_setup },
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{ "", "Pathname is empty", ENOENT, no_setup },
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#ifndef __CYGWIN__
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{ TEST_FILE2, "Path contains regular file", ENOTDIR, setup2 },
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#endif
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{ NULL, NULL, 0, no_setup }
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};
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char *TCID="stat03"; /* Test program identifier. */
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int TST_TOTAL = 6; /* Total number of test cases. */
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extern int Tst_count; /* Test Case counter for tst_* routines */
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int exp_enos[]={EACCES, EFAULT, ENAMETOOLONG, ENOENT, ENOTDIR, 0};
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void setup(); /* Main setup function for the tests */
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void cleanup(); /* cleanup function for the test */
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int
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main(int ac, char **av)
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{
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struct stat stat_buf; /* stat structure buffer */
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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char *file_name; /* ptr. for file name whose mode is modified*/
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char *test_desc; /* test specific error message */
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int ind; /* counter to test different test conditions */
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/* Parse standard options given to run the test. */
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msg = parse_opts(ac, av, (option_t *) NULL, NULL);
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if (msg != (char *) NULL) {
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tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
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tst_exit();
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/*NOTREACHED*/
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}
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/*
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* Invoke setup function to call individual test setup functions
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* to simulate test conditions.
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*/
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setup();
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/* set the expected errnos... */
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TEST_EXP_ENOS(exp_enos);
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/* Check looping state if -i option given */
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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/* Reset Tst_count in case we are looping. */
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Tst_count=0;
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for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
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file_name = Test_cases[ind].pathname;
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test_desc = Test_cases[ind].desc;
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if (file_name == High_address_node) {
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file_name = (char *)get_high_address();
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}
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/*
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* Call stat(2) to test different test conditions.
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* verify that it fails with -1 return value and
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* sets appropriate errno.
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*/
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TEST(stat(file_name, &stat_buf));
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/* Check return code from stat(2) */
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if (TEST_RETURN == -1) {
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TEST_ERROR_LOG(TEST_ERRNO);
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if (TEST_ERRNO == Test_cases[ind].exp_errno) {
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tst_resm(TPASS,
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"stat() fails, %s, errno:%d",
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test_desc, TEST_ERRNO);
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} else {
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tst_resm(TFAIL, "stat() fails, %s,"
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" errno:%d, expected errno:%d",
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test_desc, TEST_ERRNO,
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Test_cases[ind].exp_errno);
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}
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} else {
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tst_resm(TFAIL, "stat(2) returned %d,"
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" expected -1, errno:%d", TEST_RETURN,
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Test_cases[ind].exp_errno);
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}
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} /* End of TEST CASE LOOPING. */
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Tst_count++; /* incr TEST_LOOP counter */
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} /* End for TEST_LOOPING */
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/*
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* Invoke cleanup() to delete the test directory/file(s) created
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* in the setup().
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*/
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cleanup();
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/*NOTREACHED*/
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} /* End main */
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/*
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* void
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* setup(void) - performs all ONE TIME setup for this test.
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* Exit the test program on receipt of unexpected signals.
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* Create a temporary directory and change directory to it.
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* Invoke individual test setup functions according to the order
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* set in struct. definition.
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*/
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void
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setup()
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{
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int ind; /* counter for setup functions */
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/* Capture unexpected signals */
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tst_sig(FORK, DEF_HANDLER, cleanup);
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#if 0
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/* Switch to nobody user for correct error code collection */
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if (geteuid() != 0) {
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tst_brkm(TBROK, tst_exit, "Test must be run as root");
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}
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ltpuser = getpwnam(nobody_uid);
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if (setuid(ltpuser->pw_uid) == -1) {
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tst_resm(TINFO, "setuid failed to "
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"to set the effective uid to %d",
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ltpuser->pw_uid);
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perror("setuid");
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}
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#endif
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/* Pause if that option was specified
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* TEST_PAUSE contains the code to fork the test with the -i option.
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* You want to make sure you do this before you create your temporary
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* directory.
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*/
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TEST_PAUSE;
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/* Make a temp dir and cd to it */
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tst_tmpdir();
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/* call individual setup functions */
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for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
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Test_cases[ind].setupfunc();
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}
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} /* End setup() */
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/*
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* int
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* no_setup() - Some test conditions for stat(2) do not any setup.
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* Hence, this function just returns 0.
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* This function simply returns 0.
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*/
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int
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no_setup()
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{
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return 0;
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}
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/*
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* int
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* setup1() - setup function for a test condition for which stat(2)
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* returns -1 and sets errno to EACCES.
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* Create a test directory under temporary directory and create a test file
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* under this directory with mode "0666" permissions.
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* Modify the mode permissions on test directory such that process will not
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* have search permissions on test directory.
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*
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* The function returns 0.
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*/
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int
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setup1()
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{
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int fd; /* file handle for testfile */
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/* Creat a test directory */
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if (mkdir(DIR_TEMP, MODE_RWX) < 0) {
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tst_brkm(TBROK, cleanup, "mkdir(2) of %s failed", DIR_TEMP);
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/*NOTREACHED*/
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}
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/* Creat a test file under above test directory */
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if ((fd = open(TEST_FILE1, O_RDWR|O_CREAT, 0666)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s",
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TEST_FILE1, errno, strerror(errno));
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/*NOTREACHED*/
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}
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/* Close the test file */
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if (close(fd) == -1) {
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tst_brkm(TBROK, cleanup,
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"close(%s) Failed, errno=%d : %s",
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TEST_FILE1, errno, strerror(errno));
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/*NOTREACHED*/
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}
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/* Modify mode permissions on test directory */
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if (chmod(DIR_TEMP, FILE_MODE) < 0) {
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tst_brkm(TBROK, cleanup, "chmod(2) of %s failed", DIR_TEMP);
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/*NOTREACHED*/
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}
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return 0;
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}
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/*
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* int
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* setup2() - setup function for a test condition for which stat(2)
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* returns -1 and sets errno to ENOTDIR.
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*
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* Create a test file under temporary directory so that test tries to
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* change mode of a testfile "tfile_2" under "t_file" which happens to be
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* another regular file.
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*/
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int
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setup2()
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{
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int fd; /* File handle for test file */
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/* Creat a test file under temporary directory */
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if ((fd = open("t_file", O_RDWR|O_CREAT, MODE_RWX)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(2) on t_file failed, errno=%d : %s",
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errno, strerror(errno));
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/*NOTREACHED*/
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}
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/* Close the test file created above */
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if (close(fd) == -1) {
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tst_brkm(TBROK, cleanup,
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"close(t_file) Failed, errno=%d : %s",
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errno, strerror(errno));
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/*NOTREACHED*/
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}
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return 0;
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}
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/*
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* int
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* longpath_setup() - setup to create a node with a name length exceeding
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* the MAX. length of PATH_MAX.
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* This function retruns 0.
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*/
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int
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longpath_setup()
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{
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int ind; /* counter variable */
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for (ind = 0; ind <= (PATH_MAX + 1); ind++) {
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Longpathname[ind] = 'a';
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}
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return 0;
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}
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/*
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* void
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* cleanup() - Performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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* Print test timing stats and errno log if test executed with options.
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* Remove temporary directory and sub-directories/files under it
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* created during setup().
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* Exit the test program with normal exit code.
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*/
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void
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cleanup()
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{
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/*
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* print timing stats if that option was specified.
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* print errno log if that option was specified.
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*/
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TEST_CLEANUP;
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#ifndef __CYGWIN__
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/* Restore mode permissions on test directory created in setup2() */
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if (chmod(DIR_TEMP, MODE_RWX) < 0) {
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tst_brkm(TFAIL, NULL, "chmod(2) of %s failed", DIR_TEMP);
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}
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#endif
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/* Remove files and temporary directory created */
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tst_rmdir();
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/* exit with return code appropriate for results */
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tst_exit();
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} /* End cleanup() */
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