analyzer/parser/parser_defs.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

// parser/parser_defs.h
// useful definitions for parser files

#include "utils/tcp.h"

#ifndef TYPE_ENUM_DEFINED
#define TYPE_ENUM_DEFINED
typedef enum { INT, FLOAT, DOUBLE, STRING } TypeEnum;
#endif

#ifndef RESULTS_ENUM_DEFINED
#define RESULTS_ENUM_DEFINED
typedef enum { TYPE_FIGHT_RESULTS } ResultsEnum;
#endif

#ifndef PARSED_DATA_DEFINED
#define PARSED_DATA_DEFINED
// "generic" type for parsed data
typedef struct {
    ResultsEnum data_type;            // type of data represented by an enum
    void *data;                       // pointer to the parsed data
    void (*data_cleanup)(void *data); // function to cleanup internal allocations inside data
                                      // if no internal allocations - this should be NULL
} ParsedData;
#endif

// find the first results data of specific type in stream
// params:
//      - stream - stream to find the data in
//      - offset - offset to start finding data from
//      - length - length of the data or -1 if there's no end yet
// returns:
//      pointer to the beginning of data or NULL if there's none
typedef byte_t *find_function_t(TCPStream *stream, int offset, int *length);

// parse given data of specifc type
// params:
//      - data - data to parse
//      - length - length of data
// returns:
//      ParsedData struct including the parsed data
typedef ParsedData parse_function_t(byte_t *data, size_t length);

// struct for holding the find and parse function for every result type
#ifndef FIND_PARSE_FUNCTIONS_DEFINED
#define FIND_PARSE_FUNCTIONS_DEFINED
typedef struct {
    find_function_t *find_fn;
    parse_function_t *parse_fn;
} FindParseFunctions;
#endif