#ifndef LLARP_BENCODE_H #define LLARP_BENCODE_H #include #include #include #include #include /** * bencode.h * * helper functions for handling bencoding * https://en.wikipedia.org/wiki/Bencode for more information on the format * we utilize llarp_buffer which provides memory management */ bool bencode_write_bytestring(llarp_buffer_t* buff, const void* data, size_t sz); bool bencode_write_uint64(llarp_buffer_t* buff, uint64_t i); bool bencode_start_list(llarp_buffer_t* buff); bool bencode_start_dict(llarp_buffer_t* buff); bool bencode_end(llarp_buffer_t* buff); bool bencode_write_version_entry(llarp_buffer_t* buff); bool bencode_read_integer(struct llarp_buffer_t* buffer, uint64_t* result); bool bencode_read_string(llarp_buffer_t* buffer, llarp_buffer_t* result); struct dict_reader { /// makes passing data into on_key easier llarp_buffer_t* buffer; /// not currently used, maybe used in the future to pass additional /// information to on_key void* user; /** * called when we got a key string, return true to continue iteration * called with null key on done iterating */ bool (*on_key)(struct dict_reader*, llarp_buffer_t*); }; bool bencode_read_dict(llarp_buffer_t* buff, struct dict_reader* r); struct list_reader { /// makes passing data into on_item easier llarp_buffer_t* buffer; /// not currently used, maybe used in the future to pass additional /// information to on_item void* user; /** * called with true when we got an element, return true to continue iteration * called with false on iteration completion */ bool (*on_item)(struct list_reader*, bool); }; bool bencode_read_list(llarp_buffer_t* buff, struct list_reader* r); #endif