b1d088f39c
warning: incompatible pointer types passing 'int *' to parameter of type 'unsigned short *' [-Wincompatible-pointer-types]
111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/**
|
|
* libzt C API example
|
|
*
|
|
* Simple socket-based server application
|
|
*/
|
|
|
|
#include "ZeroTierSockets.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
if (argc != 5) {
|
|
printf("\nlibzt example server\n");
|
|
printf("server <id_storage_path> <net_id> <local_addr> <local_port>\n");
|
|
exit(0);
|
|
}
|
|
char* storage_path = argv[1];
|
|
long long int net_id = strtoull(argv[2], NULL, 16); // At least 64 bits
|
|
char* local_addr = argv[3];
|
|
unsigned int local_port = atoi(argv[4]);
|
|
int fd, accfd;
|
|
int err = ZTS_ERR_OK;
|
|
|
|
// Initialize node
|
|
|
|
if ((err = zts_init_from_storage(storage_path)) != ZTS_ERR_OK) {
|
|
printf("Unable to start service, error = %d. Exiting.\n", err);
|
|
exit(1);
|
|
}
|
|
|
|
// Start node
|
|
|
|
if ((err = zts_node_start()) != ZTS_ERR_OK) {
|
|
printf("Unable to start service, error = %d. Exiting.\n", err);
|
|
exit(1);
|
|
}
|
|
printf("Waiting for node to come online\n");
|
|
while (! zts_node_is_online()) {
|
|
zts_util_delay(50);
|
|
}
|
|
printf("Public identity (node ID) is %llx\n", zts_node_get_id());
|
|
|
|
// Join network
|
|
|
|
printf("Joining network %llx\n", net_id);
|
|
if (zts_net_join(net_id) != ZTS_ERR_OK) {
|
|
printf("Unable to join network. Exiting.\n");
|
|
exit(1);
|
|
}
|
|
printf("Don't forget to authorize this device in my.zerotier.com or the web API!\n");
|
|
printf("Waiting for join to complete\n");
|
|
while (! zts_net_transport_is_ready(net_id)) {
|
|
zts_util_delay(50);
|
|
}
|
|
|
|
// Get assigned address (of the family type we care about)
|
|
|
|
int family = zts_util_get_ip_family(local_addr);
|
|
|
|
printf("Waiting for address assignment from network\n");
|
|
while (! (err = zts_addr_is_assigned(net_id, family))) {
|
|
zts_util_delay(50);
|
|
}
|
|
char ipstr[ZTS_IP_MAX_STR_LEN] = { 0 };
|
|
zts_addr_get_str(net_id, family, ipstr, ZTS_IP_MAX_STR_LEN);
|
|
printf("IP address on network %llx is %s\n", net_id, ipstr);
|
|
|
|
// BEGIN Socket Stuff
|
|
|
|
// Accept incoming connection
|
|
|
|
// Can also use traditional: zts_bsd_socket(), zts_bsd_bind(), zts_bsd_listen(), zts_bsd_accept(), etc.
|
|
|
|
char remote_addr[ZTS_INET6_ADDRSTRLEN] = { 0 };
|
|
unsigned short remote_port = 0;
|
|
int len = ZTS_INET6_ADDRSTRLEN;
|
|
if ((accfd = zts_tcp_server(local_addr, local_port, remote_addr, len, &remote_port)) < 0) {
|
|
printf("Error (fd=%d, zts_errno=%d). Exiting.\n", accfd, zts_errno);
|
|
exit(1);
|
|
}
|
|
printf("Accepted connection from %s:%d\n", remote_addr, remote_port);
|
|
|
|
// Data I/O
|
|
|
|
int bytes = 0;
|
|
char recvBuf[128] = { 0 };
|
|
|
|
printf("Reading message string from client...\n");
|
|
if ((bytes = zts_read(accfd, recvBuf, sizeof(recvBuf))) < 0) {
|
|
printf("Error (fd=%d, ret=%d, zts_errno=%d). Exiting.\n", fd, bytes, zts_errno);
|
|
exit(1);
|
|
}
|
|
printf("Read %d bytes: %s\n", bytes, recvBuf);
|
|
printf("Sending message string to client...\n");
|
|
if ((bytes = zts_write(accfd, recvBuf, bytes)) < 0) {
|
|
printf("Error (fd=%d, ret=%d, zts_errno=%d). Exiting.\n", fd, bytes, zts_errno);
|
|
exit(1);
|
|
}
|
|
printf("Sent %d bytes: %s\n", bytes, recvBuf);
|
|
|
|
// Close
|
|
|
|
printf("Closing sockets\n");
|
|
err = zts_close(accfd);
|
|
err = zts_close(fd);
|
|
return zts_node_stop();
|
|
}
|