C++ (Cpp) rtems_filesystem_is_parent_directory Examples

Example #1

File: imfs_eval.c Project: cloud-hot/rtems

static IMFS_jnode_t *IMFS_search_in_directory(
  IMFS_jnode_t *dir,
  const char *token,
  size_t tokenlen
)
{
  if ( rtems_filesystem_is_current_directory( token, tokenlen ) ) {
    return dir;
  } else {
    if ( rtems_filesystem_is_parent_directory( token, tokenlen ) ) {
      return dir->Parent;
    } else {
      rtems_chain_control *entries = &dir->info.directory.Entries;
      rtems_chain_node *current = rtems_chain_first( entries );
      rtems_chain_node *tail = rtems_chain_tail( entries );

      while ( current != tail ) {
        IMFS_jnode_t *entry = (IMFS_jnode_t *) current;
        bool match = strncmp( entry->name, token, tokenlen ) == 0
          && entry->name [tokenlen] == '\0';

        if ( match ) {
          return entry;
        }

        current = rtems_chain_next( current );
      }

      return NULL;
    }
  }
}

Example #2

File: imfs_eval.c Project: AoLaD/rtems

static IMFS_jnode_t *IMFS_search_in_directory(
  IMFS_directory_t *dir,
  const char *token,
  size_t tokenlen
)
{
  if ( rtems_filesystem_is_current_directory( token, tokenlen ) ) {
    return &dir->Node;
  } else {
    if ( rtems_filesystem_is_parent_directory( token, tokenlen ) ) {
      return dir->Node.Parent;
    } else {
      rtems_chain_control *entries = &dir->Entries;
      rtems_chain_node *current = rtems_chain_first( entries );
      rtems_chain_node *tail = rtems_chain_tail( entries );

      while ( current != tail ) {
        IMFS_jnode_t *entry = (IMFS_jnode_t *) current;
        bool match = entry->namelen == tokenlen
          && memcmp( entry->name, token, tokenlen ) == 0;

        if ( match ) {
          return entry;
        }

        current = rtems_chain_next( current );
      }

      return NULL;
    }
  }
}

Example #3

File: fs-rtems.c Project: coredmp95/rtems-raspberry

static rtems_filesystem_eval_path_generic_status rtems_jffs2_eval_token(
	rtems_filesystem_eval_path_context_t *ctx,
	void *arg,
	const char *token,
	size_t tokenlen
)
{
	rtems_filesystem_eval_path_generic_status status =
		RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_DONE;
	rtems_filesystem_location_info_t *currentloc =
		rtems_filesystem_eval_path_get_currentloc(ctx);
	struct _inode *dir_i = rtems_jffs2_get_inode_by_location(currentloc);
	bool access_ok = rtems_filesystem_eval_path_check_access(
		ctx,
		RTEMS_FS_PERMS_EXEC,
		dir_i->i_mode,
		dir_i->i_uid,
		dir_i->i_gid
	);

	if (access_ok) {
		struct _inode *entry_i;

		if (rtems_filesystem_is_current_directory(token, tokenlen)) {
			entry_i = dir_i;
			++entry_i->i_count;
		} else if (rtems_filesystem_is_parent_directory(token, tokenlen)) {
			entry_i = dir_i->i_parent;
			++entry_i->i_count;
		} else {
			entry_i = jffs2_lookup(dir_i, token, (int) tokenlen);
		}

		if (IS_ERR(entry_i)) {
			rtems_filesystem_eval_path_error(ctx, PTR_ERR(entry_i));
		} else if (entry_i != NULL) {
			bool terminal = !rtems_filesystem_eval_path_has_path(ctx);
			int eval_flags = rtems_filesystem_eval_path_get_flags(ctx);
			bool follow_sym_link = (eval_flags & RTEMS_FS_FOLLOW_SYM_LINK) != 0;

			rtems_filesystem_eval_path_clear_token(ctx);

			if (S_ISLNK(entry_i->i_mode) && (follow_sym_link || !terminal)) {
				struct jffs2_inode_info *f = JFFS2_INODE_INFO(entry_i);
				const char *target = f->target;

				rtems_filesystem_eval_path_recursive(ctx, target, strlen(target));

				jffs2_iput(entry_i);
			} else {
				if (S_ISDIR(entry_i->i_mode) && entry_i->i_parent == NULL) {
					entry_i->i_parent = dir_i;
					++dir_i->i_count;
				}

				jffs2_iput(dir_i);
				rtems_jffs2_set_location(currentloc, entry_i);

				if (rtems_filesystem_eval_path_has_path(ctx)) {
					status = RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_CONTINUE;
				}
			}
		} else {
			status = RTEMS_FILESYSTEM_EVAL_PATH_GENERIC_NO_ENTRY;
		}
	}

	return status;
}