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#pragma once
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <unistd.h>
#define BENC_EBADP 1
enum benc_nodetype {
BNT_INT,
BNT_STRING,
BNT_LIST,
BNT_DICT,
BNT_END,
};
struct benc_node {
enum benc_nodetype type;
const char* loc;
union {
size_t size;
uint32_t depth;
};
};
bool readint(const char** loc, int64_t* val);
void benc_print(const struct benc_node* stream, size_t stream_len);
int64_t benc_decode(const char** cursor, const char* end, int* depth, struct benc_node* stream, size_t stream_len);
struct bcursor {
const char* source;
const char* const source_end;
int source_depth;
struct benc_node* const base;
const size_t base_len;
struct benc_node* readhead;
struct benc_node* end;
};
int bcur_open(struct bcursor* cursor, const char* source, const char* source_end, struct benc_node* buffer, size_t buffer_len);
int bcur_next(struct bcursor* cursor, uint32_t steps);
int bcur_next_sibling(struct bcursor* cursor);
ssize_t bcur_find_key(struct bcursor* cursor, const enum benc_nodetype* keyTypes, const char** keyValues, const size_t* keyLengths, const size_t keys);
void skip_sibling(const struct benc_node** cursor, const struct benc_node* end);
ssize_t skip_to_key(const struct benc_node** cursor, const struct benc_node* end, const enum benc_nodetype* keyTypes, const char** keyValues, const size_t* keyLengths, const size_t keys);
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