53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
#include <stdlib.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include "multiaddr/multiaddr.h"
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#include "libp2p/net/p2pnet.h"
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#include "libp2p/conn/connection.h"
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#include "libp2p/conn/transport_dialer.h"
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#include "multiaddr/multiaddr.h"
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/**
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* An implementation of a tcp transport dialer
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*/
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int libp2p_conn_tcp_can_handle(const struct MultiAddress* addr) {
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return 1;
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}
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int libp2p_conn_tcp_read(const struct Connection* connection, char** out, size_t* num_bytes) {
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int buffer_size = 65535;
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*out = (char*)malloc(buffer_size);
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ssize_t bytes = socket_read(connection->socket_handle, *out, buffer_size, 0, 5);
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*num_bytes = bytes;
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return bytes > 0;
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}
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int libp2p_conn_tcp_write(const struct Connection* connection, const char* in, size_t num_bytes) {
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ssize_t bytes = socket_write(connection->socket_handle, in, num_bytes, 0);
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return bytes == num_bytes;
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}
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struct Connection* libp2p_conn_tcp_dial(const struct TransportDialer* transport_dialer, const struct MultiAddress* addr) {
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struct Connection* conn = (struct Connection*) malloc(sizeof(struct Connection*));
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conn->socket_handle = socket_open4();
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char* ip;
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int port = multiaddress_get_ip_port(addr);
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if (!multiaddress_get_ip_address(addr, &ip))
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return NULL;
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struct hostent* host = gethostbyname(ip);
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struct in_addr** addr_list = (struct in_addr**)host->h_addr_list;
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socket_connect4(conn->socket_handle, (*addr_list[0]).s_addr, port);
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conn->read = libp2p_conn_tcp_read;
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conn->write = libp2p_conn_tcp_write;
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return conn;
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}
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struct TransportDialer* libp2p_conn_tcp_transport_dialer_new(char* peer_id, struct PrivateKey* private_key) {
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struct TransportDialer* out = libp2p_conn_transport_dialer_new(peer_id, private_key);
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out->can_handle = libp2p_conn_tcp_can_handle;
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out->dial = libp2p_conn_tcp_dial;
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return out;
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}
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