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/** @file
*
* Routines for providing general range support to the dfilter library
*
* Copyright (c) 2000 by Ed Warnicke <hagbard@physics.rutgers.edu>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs
* Copyright 1999 Gerald Combs
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __DRANGE_H__
#define __DRANGE_H__
#include <wireshark.h>
/* Please don't directly manipulate these structs. Please use
* the methods provided. If you REALLY can't do what you need to
* do with the methods provided please write new methods that do
* what you need, put them into the drange object here, and limit
* your direct manipulation of the drange and drange_node structs to
* here.
*/
typedef enum {
DRANGE_NODE_END_T_UNINITIALIZED,
DRANGE_NODE_END_T_LENGTH,
DRANGE_NODE_END_T_OFFSET,
DRANGE_NODE_END_T_TO_THE_END
} drange_node_end_t;
typedef struct _drange_node {
int start_offset;
int length;
int end_offset;
drange_node_end_t ending;
} drange_node;
typedef struct _drange {
GSList* range_list;
bool has_total_length;
int total_length;
int min_start_offset;
int max_start_offset;
} drange_t;
/* drange_node constructor */
drange_node* drange_node_new(void);
/* drange_node constructor */
drange_node* drange_node_from_str(const char *range_str, char **err_ptr);
/* drange_node destructor */
void drange_node_free(drange_node* drnode);
/* Call drange_node destructor on all list items */
void drange_node_free_list(GSList* list);
/* drange_node accessors */
int drange_node_get_start_offset(drange_node* drnode);
int drange_node_get_length(drange_node* drnode);
int drange_node_get_end_offset(drange_node* drnode);
drange_node_end_t drange_node_get_ending(drange_node* drnode);
/* drange_node mutators */
void drange_node_set_start_offset(drange_node* drnode, int offset);
void drange_node_set_length(drange_node* drnode, int length);
void drange_node_set_end_offset(drange_node* drnode, int offset);
void drange_node_set_to_the_end(drange_node* drnode);
/* drange constructor */
drange_t * drange_new(drange_node* drnode);
drange_t * drange_new_from_list(GSList *list);
drange_t * drange_dup(drange_t *org);
/* drange destructor, only use this if you used drange_new() to creat
* the drange
*/
void drange_free(drange_t* dr);
/* drange accessors */
bool drange_has_total_length(drange_t* dr);
int drange_get_total_length(drange_t* dr);
int drange_get_min_start_offset(drange_t* dr);
int drange_get_max_start_offset(drange_t* dr);
/* drange mutators */
void drange_append_drange_node(drange_t* dr, drange_node* drnode);
void drange_prepend_drange_node(drange_t* dr, drange_node* drnode);
void drange_foreach_drange_node(drange_t* dr, GFunc func, void *funcdata);
char *drange_node_tostr(const drange_node *rn);
char *drange_tostr(const drange_t *dr);
#endif /* ! __DRANGE_H__ */
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