legacy/trunk/libisofs/susp.h

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2006-08-15 20:37:04 +00:00
/* vim: set noet ts=8 sts=8 sw=8 : */
/** Functions and structures used for SUSP (IEEE 1281).
*/
#ifndef __ISO_SUSP
#define __ISO_SUSP
/* SUSP is only present in standard ecma119 */
struct ecma119_write_target;
struct iso_tree_node;
struct iso_tree_dir;
/** This contains the information that needs to go in the SUSP area of a file.
*/
struct susp_info
{
int n_susp_fields; /**< Number of SUSP fields */
unsigned char **susp_fields; /**< Data for each SUSP field */
/* the next 3 relate to CE and are filled out by susp_add_CE. */
int n_fields_fit; /**< How many of the above SUSP fields fit
* within this node's dirent. */
int non_CE_len; /**< Length of the part of the SUSP area that
* fits in the dirent. */
int CE_len; /**< Length of the part of the SUSP area that
* will go in a CE area. */
};
void susp_add_CE(struct ecma119_write_target *, struct iso_tree_node *);
/* these next 2 are special because they don't modify the susp fields of the
* directory that gets passed to them; they modify the susp fields of the
* "." entry in the directory. */
void susp_add_SP(struct ecma119_write_target *, struct iso_tree_dir *);
void susp_add_ER(struct ecma119_write_target *, struct iso_tree_dir *);
/** Once all the directories and files are laid out, recurse through the tree
* and finalize all SUSP CE entries. */
void susp_finalize(struct ecma119_write_target *, struct iso_tree_dir *);
void susp_append(struct ecma119_write_target *,
struct iso_tree_node *,
unsigned char *);
void susp_append_self(struct ecma119_write_target *,
struct iso_tree_dir *,
unsigned char *);
void susp_append_parent(struct ecma119_write_target *,
struct iso_tree_dir *,
unsigned char *);
void susp_insert(struct ecma119_write_target *,
struct iso_tree_node *,
unsigned char *,
int pos);
void susp_insert_self(struct ecma119_write_target *,
struct iso_tree_dir *,
unsigned char *,
int pos);
void susp_insert_parent(struct ecma119_write_target *,
struct iso_tree_dir *,
unsigned char *,
int pos);
unsigned char *susp_find(struct susp_info *,
const char *);
void susp_write(struct ecma119_write_target *,
struct susp_info *,
unsigned char *);
void susp_write_CE(struct ecma119_write_target *,
struct susp_info *,
unsigned char *);
void susp_free_fields(struct susp_info *);
#endif /* __ISO_SUSP */