405 lines
12 KiB
C
405 lines
12 KiB
C
/*
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* Test Name : symlink03
|
|
*
|
|
* Test Description :
|
|
* Verify that,
|
|
* 1) symlink(2) returns -1 and sets errno to EACCES if search/write
|
|
* permission is denied in the directory where the symbolic link is
|
|
* being created.
|
|
* 2) symlink(2) returns -1 and sets errno to EEXIST if the specified
|
|
* symbolic link already exists.
|
|
* 3) symlink(2) returns -1 and sets errno to EFAULT if the specified
|
|
* file or symbolic link points to invalid address.
|
|
* 4) symlink(2) returns -1 and sets errno to ENAMETOOLONG if the
|
|
* pathname component of symbolic link is too long (ie, > PATH_MAX).
|
|
* 5) symlink(2) returns -1 and sets errno to ENOTDIR if the directory
|
|
* component in pathname of symbolic link is not a directory.
|
|
* 6) symlink(2) returns -1 and sets errno to ENOENT if the component of
|
|
* symbolic link points to an empty string.
|
|
*
|
|
* Expected Result:
|
|
* symlink() should fail with return value -1 and set expected errno.
|
|
*
|
|
* Algorithm:
|
|
* Setup:
|
|
* Setup signal handling.
|
|
* Create temporary directory.
|
|
* Pause for SIGUSR1 if option specified.
|
|
*
|
|
* Test:
|
|
* Loop if the proper options are given.
|
|
* Execute system call
|
|
* Check return code, if system call failed (return=-1)
|
|
* if errno set == expected errno
|
|
* Issue sys call fails with expected return value and errno.
|
|
* Otherwise,
|
|
* Issue sys call fails with unexpected errno.
|
|
* Otherwise,
|
|
* Issue sys call returns unexpected value.
|
|
*
|
|
* Cleanup:
|
|
* Print errno log and/or timing stats if options given
|
|
* Delete the temporary directory(s)/file(s) created.
|
|
*
|
|
* Usage: <for command-line>
|
|
* symlink03 [-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 John George
|
|
* -Ported
|
|
*
|
|
* Restrictions:
|
|
* This test should be executed by 'non-super-user' only.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/fcntl.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <signal.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include "test.h"
|
|
#include "usctest.h"
|
|
|
|
#define MODE_RWX S_IRWXU | S_IRWXG | S_IRWXO
|
|
#define FILE_MODE S_IRUSR | S_IRGRP | S_IROTH
|
|
#define DIR_TEMP "testdir_1"
|
|
#define TESTFILE "testfile"
|
|
#define TEST_FILE1 "testdir_1/tfile_1"
|
|
#define SYM_FILE1 "testdir_1/sfile_1"
|
|
#define TEST_FILE2 "tfile_2"
|
|
#define SYM_FILE2 "sfile_2"
|
|
#define TEST_FILE3 "tfile_3"
|
|
#define SYM_FILE3 "t_file/sfile_3"
|
|
|
|
const char *TCID="symlink03"; /* Test program identifier. */
|
|
int TST_TOTAL=1; /* Total number of test cases. */
|
|
extern int Tst_count; /* Test Case counter for tst_* routines */
|
|
int exp_enos[]={ENOTDIR, ENOENT, ENAMETOOLONG, EFAULT, EEXIST, EACCES, 0};
|
|
|
|
int no_setup();
|
|
int setup1(); /* setup function to test symlink for EACCES */
|
|
int setup2(); /* setup function to test symlink for EEXIST */
|
|
int setup3(); /* setup function to test symlink for ENOTDIR */
|
|
int longpath_setup(); /* setup function to test chmod for ENAMETOOLONG */
|
|
|
|
char Longpathname[PATH_MAX+2];
|
|
char High_address_node[64];
|
|
|
|
struct test_case_t { /* test case struct. to hold ref. test cond's*/
|
|
const char *file;
|
|
const char *link;
|
|
const char *desc;
|
|
int exp_errno;
|
|
int (*setupfunc)();
|
|
} Test_cases[] = {
|
|
{ TEST_FILE1, SYM_FILE1, "No Search permissions to process", EACCES, setup1 },
|
|
{ TEST_FILE2, SYM_FILE2, "Specified symlink already exists", EEXIST, setup2 },
|
|
{ TESTFILE, High_address_node, "Address beyond address space", EFAULT, no_setup },
|
|
{ TESTFILE, (char *)-1, "Negative address", EFAULT, no_setup },
|
|
{ TESTFILE, Longpathname, "Symlink path too long", ENAMETOOLONG, longpath_setup },
|
|
{ TESTFILE, "", "Symlink Pathname is empty", ENOENT, no_setup },
|
|
#ifndef __CYGWIN__
|
|
{ TEST_FILE3, SYM_FILE3, "Symlink Path contains regular file", ENOTDIR, setup3 },
|
|
#endif
|
|
{ NULL, NULL, NULL, 0, no_setup }
|
|
};
|
|
|
|
extern void setup(); /* Setup function for the test */
|
|
void cleanup() __attribute__((noreturn));/* Cleanup function for the test */
|
|
char *get_high_address (void);
|
|
|
|
int
|
|
main(int ac, char **av)
|
|
{
|
|
int lc; /* loop counter */
|
|
const char *msg; /* message returned from parse_opts */
|
|
const char *test_file; /* testfile name */
|
|
const char *sym_file; /* symbolic link file name */
|
|
const char *test_desc; /* test specific error message */
|
|
int ind; /* counter to test different test conditions */
|
|
|
|
/* Parse standard options given to run the test. */
|
|
msg = parse_opts(ac, av, (option_t *) NULL, NULL);
|
|
if (msg != (char *) NULL) {
|
|
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
|
|
tst_exit();
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/*
|
|
* Invoke setup function to call individual test setup functions
|
|
* to simulate test conditions.
|
|
*/
|
|
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;
|
|
|
|
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
|
|
test_file = Test_cases[ind].file;
|
|
sym_file = Test_cases[ind].link;
|
|
test_desc = Test_cases[ind].desc;
|
|
|
|
if (sym_file == High_address_node) {
|
|
sym_file = (char *)get_high_address();
|
|
}
|
|
/*
|
|
* Call symlink(2) to test different test conditions.
|
|
* verify that it fails with -1 return value and sets
|
|
* appropriate errno.
|
|
*/
|
|
TEST(symlink(test_file, sym_file));
|
|
|
|
/* Check return code of symlink(2) */
|
|
if (TEST_RETURN == -1) {
|
|
/*
|
|
* Perform functional verification if
|
|
* test executed without (-f) option.
|
|
*/
|
|
TEST_ERROR_LOG(TEST_ERRNO);
|
|
if (TEST_ERRNO == Test_cases[ind].exp_errno) {
|
|
tst_resm(TPASS, "symlink() Fails, %s, "
|
|
"errno=%d", test_desc,
|
|
TEST_ERRNO);
|
|
} else {
|
|
tst_resm(TFAIL, "symlink() Fails, %s, "
|
|
"errno=%d, expected errno=%d",
|
|
test_desc, TEST_ERRNO,
|
|
Test_cases[ind].exp_errno);
|
|
}
|
|
} else {
|
|
tst_resm(TFAIL, "symlink() returned %d, "
|
|
"expected -1, errno:%d", TEST_RETURN,
|
|
Test_cases[ind].exp_errno);
|
|
}
|
|
} /* End of TEST CASE LOOPING. */
|
|
|
|
Tst_count++; /* incr. TEST_LOOP counter */
|
|
} /* End for TEST_LOOPING */
|
|
|
|
/* Call cleanup() to undo setup done for the test. */
|
|
cleanup();
|
|
/*NOTREACHED*/
|
|
|
|
} /* End main */
|
|
|
|
/*
|
|
* void
|
|
* setup() - performs all ONE TIME setup for this test.
|
|
* Create a temporary directory and change directory to it.
|
|
* Call test specific setup functions.
|
|
*/
|
|
void
|
|
setup()
|
|
{
|
|
int ind;
|
|
/* capture signals */
|
|
tst_sig(NOFORK, DEF_HANDLER, cleanup);
|
|
|
|
/* Pause if that option was specified
|
|
* TEST_PAUSE contains the code to fork the test with the -i option.
|
|
* You want to make sure you do this before you create your temporary
|
|
* directory.
|
|
*/
|
|
TEST_PAUSE;
|
|
|
|
/* make a temp directory and cd to it */
|
|
tst_tmpdir();
|
|
|
|
/* call individual setup functions */
|
|
for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
|
|
Test_cases[ind].setupfunc();
|
|
}
|
|
} /* End setup() */
|
|
|
|
/*
|
|
* int
|
|
* no_setup() - Some test conditions for mknod(2) do not any setup.
|
|
* Hence, this function just returns 0.
|
|
* This function simply returns 0.
|
|
*/
|
|
int
|
|
no_setup()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* int
|
|
* setup1() - setup function for a test condition for which symlink(2)
|
|
* returns -1 and sets errno to EACCES.
|
|
* Create a test directory under temporary directory and create a test file
|
|
* under this directory with mode "0666" permissions.
|
|
* Modify the mode permissions on test directory such that process will not
|
|
* have search permissions on test directory.
|
|
*
|
|
* The function returns 0.
|
|
*/
|
|
int
|
|
setup1()
|
|
{
|
|
int fd; /* file handle for testfile */
|
|
|
|
if (mkdir(DIR_TEMP, MODE_RWX) < 0) {
|
|
tst_brkm(TBROK, cleanup, "mkdir(2) of %s failed", DIR_TEMP);
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
if ((fd = open(TEST_FILE1, O_RDWR|O_CREAT, 0666)) == -1) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s",
|
|
TEST_FILE1, errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
if (close(fd) == -1) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"close(%s) Failed, errno=%d : %s",
|
|
TEST_FILE1, errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/* Modify mode permissions on test directory */
|
|
if (chmod(DIR_TEMP, FILE_MODE) < 0) {
|
|
tst_brkm(TBROK, cleanup, "chmod(2) of %s failed", DIR_TEMP);
|
|
/*NOTREACHED*/
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* int
|
|
* setup2() - EEXIST
|
|
*/
|
|
int
|
|
setup2()
|
|
{
|
|
int fd; /* file handle for testfile */
|
|
|
|
if ((fd = open(TEST_FILE2, O_RDWR|O_CREAT, 0666)) == -1) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"open(%s, O_RDWR|O_CREAT, 0666) failed, errno=%d : %s",
|
|
TEST_FILE1, errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
if (close(fd) == -1) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"close(%s) Failed, errno=%d : %s",
|
|
TEST_FILE2, errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
if (symlink(TEST_FILE2, SYM_FILE2) < 0) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"symlink() Fails to create %s in setup2, error=%d",
|
|
SYM_FILE2, errno);
|
|
/*NOTREACHED*/
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* int
|
|
* longpath_setup() - setup to create a node with a name length exceeding
|
|
* the MAX. length of PATH_MAX.
|
|
* This function retruns 0.
|
|
*/
|
|
int
|
|
longpath_setup()
|
|
{
|
|
int ind; /* counter variable */
|
|
|
|
for (ind = 0; ind <= (PATH_MAX + 1); ind++) {
|
|
Longpathname[ind] = 'a';
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* int
|
|
* setup3() - setup function for a test condition for which symlink(2)
|
|
* returns -1 and sets errno to ENOTDIR.
|
|
*
|
|
* Create a symlink file under temporary directory so that test tries to
|
|
* create symlink file "tfile_3" under "t_file" which happens to be
|
|
* another symlink file.
|
|
*/
|
|
int
|
|
setup3()
|
|
{
|
|
int fd; /* file handle for testfile */
|
|
|
|
/* Creat/open a testfile and close it */
|
|
if ((fd = open("t_file", O_RDWR|O_CREAT, MODE_RWX)) == -1) {
|
|
tst_brkm(TBROK, cleanup,
|
|
"open(2) on t_file failed, errno=%d : %s",
|
|
errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
if (close(fd) == -1) {
|
|
tst_brkm(TBROK, cleanup, "close(t_file) Failed, errno=%d : %s",
|
|
errno, strerror(errno));
|
|
/*NOTREACHED*/
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* void
|
|
* cleanup() - performs all ONE TIME cleanup for this test at
|
|
* completion or premature exit.
|
|
* Restore the mode permissions on test directory.
|
|
* Remove the temporary directory created in the setup.
|
|
*/
|
|
void
|
|
cleanup()
|
|
{
|
|
/*
|
|
* print timing stats if that option was specified.
|
|
* print errno log if that option was specified.
|
|
*/
|
|
TEST_CLEANUP;
|
|
|
|
/* Restore mode permissions on test directory created in setup2() */
|
|
if (chmod(DIR_TEMP, MODE_RWX) < 0) {
|
|
tst_brkm(TBROK, NULL, "chmod(2) of %s failed", DIR_TEMP);
|
|
}
|
|
|
|
/* Remove tmp dir and all files in it */
|
|
tst_rmdir();
|
|
|
|
/* exit with return code appropriate for results */
|
|
tst_exit();
|
|
} /* End cleanup() */
|