90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
#ifndef MULTIADDR
|
|
#define MULTIADDR
|
|
#include <string.h>
|
|
|
|
#include "varhexutils.h"
|
|
#include "varint.h"
|
|
#include "protocols.h"
|
|
#include "protoutils.h"
|
|
|
|
/**
|
|
* Normally, addresses have been represented using string addresses, like:
|
|
|
|
tcp4://127.0.0.1:1234
|
|
udp4://10.20.30.40:5060
|
|
ws://1.2.3.4:5678
|
|
tcp6://[1fff:0:a88:85a3::ac1f]:8001
|
|
This isn't optimal. Instead, addresses should be formatted so:
|
|
|
|
Binary format:
|
|
|
|
(varint proto><n byte addr>)+
|
|
<1 byte ipv4 code><4 byte ipv4 addr><1 byte udp code><2 byte udp port>
|
|
<1 byte ipv6 code><16 byte ipv6 addr><1 byte tcp code><2 byte tcp port>
|
|
|
|
String format:
|
|
|
|
(/<addr str code>/<addr str rep>)+
|
|
/ip4/<ipv4 str addr>/udp/<udp int port>
|
|
/ip6/<ipv6 str addr>/tcp/<tcp int port>
|
|
*/
|
|
|
|
struct MultiAddress
|
|
{
|
|
// A MultiAddress represented as a string
|
|
char* string;
|
|
// A MultiAddress represented as an array of bytes
|
|
//<varint proto><n byte addr><1 byte protocol code><4 byte ipv4 address or 16 byte ipv6 address><1 byte tcp/udp code><2 byte port>
|
|
uint8_t* bytes;
|
|
size_t bsize;
|
|
};
|
|
|
|
|
|
int strpos(char *haystack, char *needle);
|
|
|
|
struct MultiAddress* multiaddress_new_from_bytes(const uint8_t* byteaddress, int size); //Construct new address from bytes
|
|
|
|
struct MultiAddress* multiaddress_new_from_string(const char* straddress); //Construct new address from string
|
|
|
|
void multiaddress_free(struct MultiAddress* in);
|
|
|
|
struct MultiAddress* multiaddress_copy(const struct MultiAddress* source);
|
|
|
|
// helpers to parse the MultiAddress struct
|
|
|
|
int multiaddress_encapsulate(struct MultiAddress * result, char * string);
|
|
|
|
int multiaddress_decapsulate(struct MultiAddress * result, char * srci);
|
|
|
|
int multiaddress_is_ip(const struct MultiAddress* in);
|
|
|
|
int multiaddress_is_ip4(const struct MultiAddress* in);
|
|
|
|
int multiaddress_is_ip6(const struct MultiAddress* in);
|
|
|
|
int multiaddress_get_ip_family(const struct MultiAddress* in);
|
|
|
|
/***
|
|
* Pulls the textual representation of the IP address from a multihash
|
|
* @param in the multihash to parse
|
|
* @param ip where to put the ip address
|
|
* @returns true(1) on success, otherwise 0
|
|
*/
|
|
int multiaddress_get_ip_address(const struct MultiAddress* in, char** ip);
|
|
|
|
/***
|
|
* Pulls the IP port from a multiaddress
|
|
* @param in the multiaddress
|
|
* @param port where to put the port
|
|
* @returns the port, or a negative number for an error
|
|
*/
|
|
int multiaddress_get_ip_port(const struct MultiAddress* in);
|
|
|
|
/**
|
|
* Pulls the peer ID out of a multiaddress struct
|
|
* @param in the MultiAddress
|
|
* @returns a pointer to the peer id string, or NULL
|
|
*/
|
|
char* multiaddress_get_peer_id(const struct MultiAddress* in);
|
|
|
|
#endif
|