// client

#include<stdint.h>
#include<stdlib.h>

int zaprus_init(void);

int zaprus_deinit(void);

int zaprus_send_relay(const char* payload, size_t len, char dest[4]);

int zaprus_send_initial_connection(const char* payload, size_t len, uint16_t initial_port);

void* zaprus_connect(const char* payload, size_t len);