test.c

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

  for (i=1; i < link_count; i++) {
    sprintf( name1, "%d", i );
    make_a_symlink( link_file, name1 );
    strcpy( name2, name1 );
    link_file = name2;
  }

  for (i=1; i < link_count; i++) {
    sprintf( name1, "%d", i );
    stat_a_file( name1 );
  }

}

/*
 *  mkdir() multiple directories at a time
 */
  
void make_multiple_directories(
  char **files
) 
{
  int    i;
  int    status;

  i = 0; 
  while ( files[i] ) {
    printf( "Making directory %s\n", files[i] );
    status = mkdir( files[i], S_IRWXU );
    assert( !status );
    i++;
  }
  puts( "" );
}  

/*
 * Cause faults.
 */


void Cause_faults()
{
  int                                   fd;
  int                                   status;
  char                                  longer_name[100];
  rtems_filesystem_mount_table_entry_t *mt_entry;

  /*
   * Verify chmod with an invalid type.
   */

  printf("\n\nPass an invalid mode to chmod should fail with EPERM \n" );
  status = chmod( Files[0], S_IFREG );
  assert( status == -1 ); 
  assert( errno == EPERM );

  /*
   * Change file to executable then try to chdir to it. 
   */

  status = chmod( Files[0], S_IXUSR );
  assert( status != -1 );

  printf("chdir to a file should fail with ENOTDIR\n");
  status = chdir( Files[0] );
  assert( status == -1 );
  assert( errno == ENOTDIR );

  /*
   * Change mode to read/write on a directory.
   * Verify directory works properly.
   */

  printf("Verify RWX permission on %s via access\n", Directories[0]);
  status = access( Directories[0], ( R_OK | W_OK | X_OK )  );
  assert( status == 0 );

  printf( "chmod of %s to Read/Write\n", Directories[0] );
  status = chmod( Directories[0], (S_IXGRP | S_IXOTH) );
  assert( status == 0 );

  printf( "chmod fred should fail with ENOENT\n" );
  status = chmod( "fred", (S_IXGRP | S_IXOTH) );
  assert( status == -1 );
  assert( errno == ENOENT );

  strcpy(longer_name, Directories[0] );
  strcat(longer_name, "/BADNAME" );
  printf( "Create under %s should fail with EACCES\n", Directories[0] );
  status = mkdir( longer_name , S_IRWXU );
  assert( status == -1 );
  assert( errno == EACCES );

  printf("chdir to %s should fail with EACCES\n", Directories[4] );
  status = chdir( Directories[4] );
  assert( status == -1 );
  assert( errno == EACCES );

  /* 
   * Check stat with a NULL buffer.
   */

  printf("Stat with a NULL buffer should fail with EFAULT\n");
  status = stat( Directories[0], NULL );
  assert( status == -1 );
  assert( errno == EFAULT );

  /*
   * Set current to a directory with no owner permissions.
   * Verify it works properly.
   */

  printf( "\n\nchmod of %s to Read/Write\n", Directories[0] );
  status = chmod( Directories[0], (S_IXGRP | S_IXOTH) );
  assert( status == 0 );

  printf("mkdir %s should fail with EACCESS\n", longer_name );
  status = mkdir( longer_name , S_IRWXU );
  assert( status == -1 );
  assert( errno == EACCES );

  printf("\n%s Should exist ( access )\n",Directories[0] );
  status = access( Directories[0], F_OK );
  assert( status == 0 );
  printf("\n%s Should have read  permission( access )\n",Directories[0] );
  status = access( Directories[0], R_OK );
  assert( status != 0 );
  printf("\n%s Should have write permission( access )\n",Directories[0] );
  status = access( Directories[0], W_OK );
  assert( status != 0 );
  printf("\n%s Should not have execute permission( access )\n",Directories[0] );
  status = access( Directories[0], X_OK );
  assert( status != 0 );
  
  printf("\nRestore %s to RWX\n",Directories[0] );
  status = chmod( Directories[0], S_IRWXU );
  assert( status == 0 );

  printf("chdir to /my_mount_point \n");
  status = chdir( "/my_mount_point" );
  assert( status == 0 );

  /*
   * Remove one of the directories.
   * Verify links to the removed directory still work.
   */

  printf( "Remove %s\n", Directories[5] );
  status = rmdir( Directories[5] );
  assert( status == 0 );

  stat_a_file( Directories[5] );
  status = access( Directories[5], F_OK );
  assert( status != 0 );

  stat_a_file( Links_to_Dirs[5] );
  status = readlink( Links_to_Dirs[5], longer_name, 3 );
  assert( status == -1 );
  assert( errno == EINVAL );

  stat_a_file( Links_to_dirlinks[5] );
  printf("Chdir to %s\n", Links_to_Dirs[5] );
  status = chdir( Links_to_Dirs[5] );
  assert( status == 0 );

  /*
   * Verify we cannot move up from a node with no parent node.
   */

  printf("Chdir to .. should fail with ENOENT\n" );
  status = chdir( ".." );
  assert( status == -1 );
  assert( errno == ENOENT );

  /*
   * Create a subdirectory under the dangling node.
   */

  printf("mkdir ../t should fail with ENOENT\n" );
  status = mkdir( "../t" , S_IRWXU );
  assert( status == -1 );
  assert( errno == ENOENT );

  printf("mkdir t\n");
  status = mkdir( "t" , S_IRWXU );
  assert( status == 0 );

  printf("chdir to /my_mount_point\n");
  status = chdir( "/my_mount_point" );
  assert( status == 0 );

  /*
   * Check rmdir, rmnod, and unlink
   */

  printf("rmdir %s should fail with ENOTDIR\n", Links_to_Dirs[5] );
  status = rmdir( Links_to_Dirs[5] );
  assert( status == -1 );
  assert( errno == ENOTDIR );

  printf("unlink %s\n", Links_to_Dirs[5] );
  status = unlink( Links_to_Dirs[5] );
  assert( status == 0 );

  printf("unlink %s should fail with ENOTEMPTY\n", Links_to_dirlinks[5] );
  status = unlink(  Links_to_dirlinks[5] );
  assert( status == -1 );
  assert( errno == ENOTEMPTY );

  strcpy( longer_name,  Links_to_dirlinks[5] );
  strcat( longer_name, "/t");
  printf("rmdir %s\n", longer_name );
  status = rmdir( longer_name );
  assert( status == 0 );

  printf("unlink %s\n", Links_to_Dirs[5]);
  status = unlink( Links_to_dirlinks[5] );
  assert( status == 0 );

  status = chdir( Directories[0] );
  status = mkdir ( "my_mount_point", S_IRWXU );
  assert( status == 0 );

  printf("Attempting to mount IMFS file system at /dir1/my_mount_point \n");
  status = mount(
     &mt_entry,
     &IMFS_ops,
     RTEMS_FILESYSTEM_READ_WRITE,
     NULL,
     "/my_mount_point/dir1/my_mount_point" );
  assert( status == 0 );

  printf("rmdir /dir1/my_mount_point should fail with EBUSY\n");
  status = rmdir ("/my_mount_point/dir1/my_mount_point" );
  assert( status == -1 );
  assert( errno == EBUSY );

  printf( "Unmount /my_mount_point/dir1/my_mount_point\n");
  status = unmount( "/my_mount_point/dir1/my_mount_point" );
  assert( status == 0 );

  /*
   * Verify write permission is checked.
   */

  printf("chmod of %s to group and other execute\n", Files[0] );
  status = chmod (Files[0], (S_IXGRP | S_IXOTH) );
  assert( status == 0 );

  printf("Open %s for write should fail with EACCES\n", Files[0] );
  fd = open (Files[0], O_WRONLY); 
  assert( fd == -1 );
  assert( errno == EACCES );

  printf("chmod of %s to User Execute and Read\n", Directories[3] );
  status = chmod (Directories[3], (S_IXUSR | S_IRUSR) );
  assert( status == 0 );
  strcpy(longer_name, Directories[3] );
  strcat(longer_name, "/NewFile" );
  printf("Mkdir of %s should fail with EACCES\n",longer_name );
  status = mkdir( longer_name, S_IRWXU );
  assert( status != 0 );
  assert( errno == EACCES );

  printf("Making too many hard links.\n" );
  make_too_many_links( );

  printf( "pass fstat a null pointer should fail with EFAULT\n");
  status = fstat( fd, NULL );
  assert( status == -1 ); 
  assert( errno == EFAULT);

  /*
   * The current directory MUST be restored at the end of this test.
   */

  printf("chdir to /my_mount_point \n");
  status = chdir( "/my_mount_point" );
  assert( status == 0 );

}

void Show_Time()
{
  rtems_time_of_day time;
  rtems_status_code status;

  status = rtems_clock_get( RTEMS_CLOCK_GET_TOD, &time );
  printf(">>>>Current Time: ");
  print_time( " - rtems_clock_get - ", &time, "\n" );
}

/*
 *  main entry point to the test
 */

#if defined(__rtems__)
int test_main(void)
#else
int main(
  int    argc,
  char **argv
)
#endif
{
  rtems_status_code                    status;
  rtems_time_of_day                    time;
  rtems_filesystem_mount_table_entry_t *mt_entry;

  puts( "\n\n*** STAT TEST 01 ***" );

  build_time( &time, 12, 31, 1988, 9, 0, 0, 0 );
  status = rtems_clock_set( &time );
  Show_Time();

  /*
   * Create and mount another version of the filesyste.
   * This allows expected node id's to be consistant across
   * platforms and bsp's.
   */

  status = mkdir("/my_mount_point",  S_IRWXU );
  assert( status == 0 );
  status = mount(
     &mt_entry,
     &IMFS_ops,
     RTEMS_FILESYSTEM_READ_WRITE,
     NULL,
     "my_mount_point" );
  assert( status == 0 );
  status = chdir( "/my_mount_point" );
  assert( status == 0 );
  status = mkdir("dev",  S_IRWXU );
  assert( status == 0 );


  /*
   *  Create the files and directories for the test.
   */

  make_multiple_directories( Directories );
  make_multiple_files( Files );
  make_multiple_links( Directories,    Links_to_Dirs );
  make_multiple_links( Files,          Links_to_Files );

  status = rtems_task_wake_after( TIMEOUT_VALUE );
  make_multiple_links( Links_to_Dirs,  Links_to_dirlinks );
  status = rtems_task_wake_after( TIMEOUT_VALUE );
  make_multiple_links( Links_to_Files, Links_to_filelinks );

  status = rtems_task_wake_after( TIMEOUT_VALUE );

  /*
   *  Now go through all the absolute path.
   */

  puts( "Doing the stat() on all the good absolute paths" );
  stat_multiple_files( Good_absolute_paths );

  /*
   *  run through the relative paths.
   */

  puts( "\nDoing the stat() on all the good relative paths" );
  stat_multiple_files( Good_relative_paths );

  /*
   * Change directory and releative paths are now bad.
   */

  puts("\nchdir to dev");
  chdir("dev");
  puts("\nstat relative paths that are now bad");
  stat_multiple_files( Good_relative_paths );

  /*
   * Change directory to the link directory and follow links.
   */

  puts("\nchdir to ../links");
  chdir("../links");
  puts("Doing the stat() on good links\n");
  stat_multiple_files( Links_to_Dirs );
  stat_multiple_files( Links_to_Files );
  stat_multiple_files( Links_to_dirlinks  );
  stat_multiple_files( Links_to_filelinks );
  
  /*
   * Chmod on dir1/dir1.  This allows the error path to be hit.
   */

  printf( "chmod of %s to Read/Write\n", Directories[4] );
  chmod( Directories[4], (S_IROTH|S_IWOTH) );
  puts( "\nDoing the stat() on all the bad paths" );

  stat_multiple_files( Bad_paths );
  make_multiple_bad_files( Bad_paths );

  printf( "Return %s to RWX\n", Directories[4] );
  chmod( Directories[4], S_IRWXU );


  /*
   * Check out symbolic links.
   */

  make_multiple_symlinks();
  make_many_symlinks( "/symlinks", 10 );

  status = rtems_task_wake_after( TIMEOUT_VALUE );
  Cause_faults();

  status = rtems_task_wake_after( TIMEOUT_VALUE );
  chown_multiple_files( Files );

  status = rtems_task_wake_after( TIMEOUT_VALUE );
  chown_multiple_files( Links_to_Dirs );
 
  puts( "\n\n*** END OF STAT TEST 01 ***" );
  rtems_test_exit(0);
}