425 lines
12 KiB
C
425 lines
12 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: access03
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*
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* Test Description:
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* Verify that,
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* 1. access() fails with -1 return value and sets errno to EACCES
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* if the permission bits of the file mode do not permit the
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* requested (Read/Write/Execute) access.
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* 2. access() fails with -1 return value and sets errno to EINVAL
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* if the specified access mode argument is invalid.
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* 3. access() fails with -1 return value and sets errno to EFAULT
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* if the pathname points outside allocate address space for the
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* process.
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* 4. access() fails with -1 return value and sets errno to ENOENT
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* if the specified file doesn't exist (or pathname is NULL).
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* 5. access() fails with -1 return value and sets errno to ENAMETOOLONG
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* if the pathname size is > PATH_MAX characters.
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*
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* Expected Result:
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* access() 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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* access03 [-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 Ported by Wayne Boyer
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*
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* RESTRICTIONS:
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* This test should be run by 'non-super-user' only.
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*
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*/
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#include <errno.h>
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#include <fcntl.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 "test.h"
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#include "usctest.h"
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#define INV_OK -1
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#define TEST_FILE1 "test_file1"
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#define TEST_FILE2 "test_file2"
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#define TEST_FILE3 "test_file3"
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#define TEST_FILE4 "test_file4"
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#define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
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int no_setup();
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int setup1(); /* setup() to test access() for EACCES */
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int setup2(); /* setup() to test access() for EACCES */
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int setup3(); /* setup() to test access() for EACCES */
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int setup4(); /* setup() to test access() for EINVAL */
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int longpath_setup(); /* setup function to test access() for ENAMETOOLONG */
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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 structure */
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const char *pathname;
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int a_mode;
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const 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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{ TEST_FILE1, R_OK, "Read Access denied on file", EACCES, setup1 },
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{ TEST_FILE2, W_OK, "Write Access denied on file", EACCES, setup2 },
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{ TEST_FILE3, X_OK, "Execute Access denied on file", EACCES, setup3 },
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{ TEST_FILE4, INV_OK, "Access mode invalid", EINVAL, setup4 },
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{ High_address_node, R_OK, "Address beyond address space", EFAULT, no_setup },
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{ (char *)-1, R_OK, "Negative address", EFAULT, no_setup },
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{ "", W_OK, "Pathname is empty", ENOENT, no_setup },
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{ Longpathname, R_OK, "Pathname too long", ENAMETOOLONG, longpath_setup },
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{ NULL, 0, NULL, 0, no_setup }
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};
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const char *TCID="access03"; /* Test program identifier. */
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int TST_TOTAL=8; /* 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, EINVAL, ENOENT, ENAMETOOLONG, 0};
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void setup(); /* Main setup function of test */
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void cleanup(void) __attribute__((noreturn)); /* cleanup function for the test */
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char *get_high_address (void);
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int
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main(int ac, char **av)
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{
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int lc; /* loop counter */
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const char *msg; /* message returned from parse_opts */
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const char *file_name; /* name of the testfile */
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const char *test_desc; /* test specific message */
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int access_mode; /* specified access mode for testfile */
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int ind; /* counter for testcase looping */
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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, tst_exit, "OPTION PARSING ERROR - %s", msg);
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}
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/* Perform global setup for test */
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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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access_mode = Test_cases[ind].a_mode;
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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 access(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(access(file_name, access_mode));
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if (TEST_RETURN != -1) {
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tst_resm(TFAIL, "access() 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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continue;
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}
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TEST_ERROR_LOG(TEST_ERRNO);
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/*
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* Call a function to verify whether
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* the specified file has specified
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* access mode.
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*/
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if (TEST_ERRNO == Test_cases[ind].exp_errno) {
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tst_resm(TPASS, "access() fails, %s, errno:%d",
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test_desc, TEST_ERRNO);
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} else {
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tst_resm(TFAIL, "access() fails, %s, errno:%d, "
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"expected errno:%d", test_desc,
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TEST_ERRNO, Test_cases[ind].exp_errno);
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}
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} /* Test Case Looping */
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} /* End for TEST_LOOPING */
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/* Call cleanup() to undo setup done for the test. */
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cleanup();
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/*NOTREACHED*/
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}
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/*
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* setup() - performs all ONE TIME setup for this test.
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*
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* Create a temporary directory and change directory to it.
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* Call individual test specific setup functions.
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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 testsetup functions */
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/* capture signals */
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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/* Check that the test process id is not root/super-user */
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if (geteuid() == 0) {
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tst_brkm(TBROK, NULL, "Must be non-root/super for this test!");
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tst_exit();
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}
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/* Pause if that option was specified */
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TEST_PAUSE;
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/* make a temp directory 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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}
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/*
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* no_setup() - some test conditions do not need any setup.
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* Hence, 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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* setup1() - Setup function to test access() for return value -1
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* and errno EACCES when read access denied for specified
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* testfile.
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*
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* Creat/open a testfile and close it.
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* Deny read access permissions on testfile.
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* This 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 fd1; /* file handle for testfile */
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/* Creat a test file under above directory created */
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if ((fd1 = open(TEST_FILE1, O_RDWR|O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEST_FILE1, FILE_MODE, errno, strerror(errno));
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}
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/* Close the testfile created above */
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if (close(fd1) == -1) {
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tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
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TEST_FILE1, errno, strerror(errno));
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}
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/* Change mode permissions on testfile */
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if (chmod(TEST_FILE1, 0333) < 0) {
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tst_brkm(TBROK, cleanup, "chmod() failed on %s, errno=%d",
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TEST_FILE1, errno);
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}
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return 0;
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}
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/*
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* setup2() - Setup function to test access() for return value -1 and
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* errno EACCES when write access denied on testfile.
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*
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* Creat/open a testfile and close it.
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* Deny write access permissions on testfile.
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* This function returns 0.
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*/
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int
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setup2()
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{
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int fd2; /* file handle for testfile */
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/* Creat a test file under above directory created */
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if ((fd2 = open(TEST_FILE2, O_RDWR|O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEST_FILE2, FILE_MODE, errno, strerror(errno));
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}
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/* Close the testfile created above */
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if (close(fd2) == -1) {
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tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
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TEST_FILE2, errno, strerror(errno));
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}
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/* Change mode permissions on testfile */
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if (chmod(TEST_FILE2, 0555) < 0) {
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tst_brkm(TBROK, cleanup, "chmod() failed on %s, errno=%d",
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TEST_FILE2, errno);
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}
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return 0;
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}
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/*
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* setup3() - Setup function to test access() for return value -1 and
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* errno EACCES when execute access denied on testfile.
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*
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* Creat/open a testfile and close it.
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* Deny search access permissions on testfile.
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* This function returns 0.
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*/
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int
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setup3()
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{
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int fd3; /* file handle for testfile */
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/* Creat a test file under above directory created */
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if ((fd3 = open(TEST_FILE3, O_RDWR|O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEST_FILE3, FILE_MODE, errno, strerror(errno));
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}
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/* Close the testfile created above */
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if (close(fd3) == -1) {
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tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
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TEST_FILE3, errno, strerror(errno));
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}
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/* Change mode permissions on testfile */
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if (chmod(TEST_FILE3, 0666) < 0) {
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tst_brkm(TBROK, cleanup, "chmod() failed on %s, errno=%d",
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TEST_FILE3, errno);
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}
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return 0;
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}
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/*
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* setup4() - Setup function to test access() for return value -1
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* and errno EINVAL when specified access mode argument is
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* invalid.
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*
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* Creat/open a testfile and close it.
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* This function returns 0.
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*/
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int
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setup4()
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{
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int fd4; /* file handle for testfile */
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/* Creat a test file under above directory created */
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if ((fd4 = open(TEST_FILE4, O_RDWR|O_CREAT, FILE_MODE)) == -1) {
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tst_brkm(TBROK, cleanup,
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"open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s",
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TEST_FILE4, FILE_MODE, errno, strerror(errno));
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}
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/* Close the testfile created above */
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if (close(fd4) == -1) {
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tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s",
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TEST_FILE4, errno, strerror(errno));
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}
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return 0;
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}
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/*
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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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*/
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int
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longpath_setup()
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{
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int ind;
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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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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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*
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* Remove the test directory and testfile created in the setup.
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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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/*
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* Delete the test directory/file and temporary directory
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* created in the setup.
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*/
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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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}
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