ptvcursor.h

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#pragma once
#include <epan/packet.h>
#include "ws_symbol_export.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SUBTREE_UNDEFINED_LENGTH -1
 
typedef struct ptvcursor ptvcursor_t;
 
WS_DLL_PUBLIC
ptvcursor_t*
ptvcursor_new(wmem_allocator_t *scope, proto_tree* tree, tvbuff_t* tvb, unsigned offset);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add(ptvcursor_t* ptvc, int hf, int length, const unsigned encoding);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add_ret_uint(ptvcursor_t* ptvc, int hf, unsigned length, const unsigned encoding, uint32_t *retval);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add_ret_int(ptvcursor_t* ptvc, int hf, unsigned length, const unsigned encoding, int32_t *retval);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add_ret_string(ptvcursor_t* ptvc, int hf, int length, const unsigned encoding, wmem_allocator_t *scope, const uint8_t **retval);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add_ret_boolean(ptvcursor_t* ptvc, int hf, unsigned length, const unsigned encoding, bool *retval);
 
WS_DLL_PUBLIC
proto_item*
ptvcursor_add_no_advance(ptvcursor_t* ptvc, int hf, int length, const unsigned encoding);
 
WS_DLL_PUBLIC
void
ptvcursor_advance(ptvcursor_t* ptvc, unsigned length);
 
WS_DLL_PUBLIC
void
ptvcursor_free(ptvcursor_t* ptvc);
 
WS_DLL_PUBLIC
tvbuff_t*
ptvcursor_tvbuff(ptvcursor_t* ptvc);
 
WS_DLL_PUBLIC
unsigned
ptvcursor_current_offset(ptvcursor_t* ptvc);
 
WS_DLL_PUBLIC
proto_tree*
ptvcursor_tree(ptvcursor_t* ptvc);
 
WS_DLL_PUBLIC
void
ptvcursor_set_tree(ptvcursor_t* ptvc, proto_tree* tree);
 
WS_DLL_PUBLIC
proto_tree*
ptvcursor_push_subtree(ptvcursor_t* ptvc, proto_item* it, int ett_subtree);
 
WS_DLL_PUBLIC
void
ptvcursor_pop_subtree(ptvcursor_t* ptvc);
 
/* Add an item to the tree and create a subtree
 * If the length is unknown, length may be defined as SUBTREE_UNDEFINED_LENGTH.
 * In this case, when the subtree will be closed, the parent item length will
 * be equal to the advancement of the cursor since the creation of the subtree.
 */
WS_DLL_PUBLIC
proto_tree*
ptvcursor_add_with_subtree(ptvcursor_t* ptvc, int hfindex, int length,
    const unsigned encoding, int ett_subtree);
 
WS_DLL_PUBLIC
proto_tree*
ptvcursor_add_text_with_subtree(ptvcursor_t* ptvc, int length,
    int ett_subtree, const char* format, ...)
    G_GNUC_PRINTF(4, 5);
 
WS_DLL_PUBLIC
proto_tree*
ptvcursor_set_subtree(ptvcursor_t* ptvc, proto_item* it, int ett_subtree);
 
#ifdef __cplusplus
}
#endif