JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write_1offset(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf, jint offset, jint len)
{
void *data = env->GetPrimitiveArrayCritical(&(buf[offset]), NULL); // PENDING: check?
int retval = zts_write(fd, data, len);
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write__IB(JNIEnv *env, jobject thisObj,
jint fd, jbyteArray buf)
{
void *data = env->GetPrimitiveArrayCritical(buf, NULL);
int retval = zts_write(fd, data, env->GetArrayLength(buf));
env->ReleasePrimitiveArrayCritical(buf, data, 0);
return retval > -1 ? retval : -(zts_errno);
}
int main(int argc, char **argv)
{
if (argc != 4) {
printf("\nlibzt example server\n");
printf("server [config_file_path] [nwid] [bind_port]\n");
exit(0);
}
std::string path = argv[1];
std::string nwidstr = argv[2];
int bind_port = atoi(argv[3]);
int w = 0, r = 0, err = 0, sockfd, accfd;
char rbuf[32];
memset(rbuf, 0, sizeof rbuf);
struct sockaddr_in6 in6, acc_in6;
in6.sin6_port = htons(bind_port);
in6.sin6_family = AF_INET6;
in6.sin6_addr = in6addr_any;
// --- BEGIN EXAMPLE CODE
printf("Waiting for libzt to come online...\n");
uint64_t nwid = strtoull(nwidstr.c_str(), NULL, 16);
printf("nwid=%llx\n", (unsigned long long)nwid);
zts_startjoin(path.c_str(), nwid);
uint64_t nodeId = zts_get_node_id();
printf("I am %llx\n", (unsigned long long)nodeId);
if ((sockfd = zts_socket(AF_INET6, SOCK_STREAM, 0)) < 0) {
printf("error creating ZeroTier socket\n");
}
if ((err = zts_bind(sockfd, (struct sockaddr *)&in6, sizeof(struct sockaddr_in6)) < 0)) {
printf("error binding to interface (%d)\n", err);
}
if ((err = zts_listen(sockfd, 100)) < 0) {
printf("error placing socket in LISTENING state (%d)\n", err);
}
socklen_t client_addrlen = sizeof(sockaddr_in6);
if ((accfd = zts_accept(sockfd, (struct sockaddr *)&acc_in6, &client_addrlen)) < 0) {
printf("error accepting connection (%d)\n", err);
}
socklen_t peer_addrlen = sizeof(struct sockaddr_storage);
zts_getpeername(accfd, (struct sockaddr*)&acc_in6, &peer_addrlen);
//DEBUG_INFO("accepted connection from %s : %d", inet_ntoa(acc_in6.sin6_addr), ntohs(acc_in6.sin6_port));
printf("reading from client...\n");
r = zts_read(accfd, rbuf, sizeof rbuf);
printf("sending to client...\n");
w = zts_write(accfd, rbuf, strlen(rbuf));
printf("Received : %s\n", rbuf);
err = zts_close(sockfd);
err = zts_close(accfd);
return err;
}
int main()
{
char *nwid = (char *)"e5cd7a9e1c0fd272";
// Get ZeroTier core version
char ver[ZT_VER_STR_LEN];
zts_core_version(ver);
printf("zts_core_version = %s\n", ver);
// Get SDK version
zts_sdk_version(ver);
printf("zts_sdk_version = %s\n", ver);
// Spawns a couple threads to support ZeroTier core, userspace network stack, and generates ID in ./zt
zts_start("./zt");
// Print the device/app ID (this is also the ID you'd see in ZeroTier Central)
char id[ZT_ID_LEN + 1];
zts_get_device_id(id);
printf("id = %s\n", id);
// Get the home path of this ZeroTier instance, where we store identity keys, conf files, etc
char homePath[ZT_HOME_PATH_MAX_LEN+1];
zts_get_homepath(homePath, ZT_HOME_PATH_MAX_LEN);
printf("homePath = %s\n", homePath);
// Wait for ZeroTier service to start
while(!zts_running()) {
printf("wating for service to start\n");
sleep(1);
}
// Join a network
zts_join(nwid);
// Wait for ZeroTier service to issue an address to the device on the given network
while(!zts_has_address("e5cd7a9e1c0fd272")) {
printf("waiting for service to issue an address\n");
sleep(1);
}
// Begin Socket API calls
int err;
int sockfd;
int port = 7878;
struct sockaddr_in addr;
// socket()
if((sockfd = zts_socket(AF_INET, SOCK_STREAM, 0)) < 0)
printf("error creating ZeroTier socket");
else
printf("sockfd = %d\n", sockfd);
// connect() IPv6
if(false)
{
struct hostent *server = gethostbyname2("fde5:cd7a:9e1c:0fd2:7299:9367:5993:3b86",AF_INET6);
struct sockaddr_in6 serv_addr;
memset((char *) &serv_addr, 0, sizeof(serv_addr));
serv_addr.sin6_flowinfo = 0;
serv_addr.sin6_family = AF_INET6;
memmove((char *) &serv_addr.sin6_addr.s6_addr, (char *) server->h_addr, server->h_length);
serv_addr.sin6_port = htons( port );
if((err = zts_connect(sockfd, (struct sockaddr *) &serv_addr, sizeof(serv_addr))) < 0) {
printf("error connecting to remote host (%d)\n", err);
return -1;
}
}
// connect() IPv4
if(true)
{
addr.sin_addr.s_addr = inet_addr("10.9.9.20");
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
if((err = zts_connect(sockfd, (const struct sockaddr *)&addr, sizeof(addr))) < 0) {
printf("error connecting to remote host (%d)\n", err);
return -1;
}
zts_write(sockfd, "hello", 5);
sleep(3);
zts_close(sockfd);
}
// bind() ipv4
if(false)
{
//addr.sin_addr.s_addr = INADDR_ANY; // TODO: Requires significant socket multiplexer work
addr.sin_addr.s_addr = inet_addr("10.9.9.40");
addr.sin_family = AF_INET;
addr.sin_port = htons( port );
if((err = zts_bind(sockfd, (const struct sockaddr *)&addr, sizeof(addr))) < 0) {
printf("error binding to interface (%d)\n", err);
return -1;
}
zts_listen(sockfd, 1);
struct sockaddr_in client;
int c = sizeof(struct sockaddr_in);
int accept_fd = zts_accept(sockfd, (struct sockaddr *)&client, (socklen_t*)&c);
printf("reading from buffer\n");
char newbuf[32];
memset(newbuf, 0, 32);
read(accept_fd, newbuf, 20);
printf("newbuf = %s\n", newbuf);
}
// End Socket API calls
// Get the ipv4 address assigned for this network
char addr_str[ZT_MAX_IPADDR_LEN];
zts_get_ipv4_address(nwid, addr_str, ZT_MAX_IPADDR_LEN);
printf("ipv4 = %s\n", addr_str);
zts_get_ipv6_address(nwid, addr_str, ZT_MAX_IPADDR_LEN);
printf("ipv6 = %s\n", addr_str);
printf("peer_count = %lu\n", zts_get_peer_count());
while(1) {
sleep(1);
}
// Stop service, delete tap interfaces, and network stack
zts_stop();
return 0;
}
JNIEXPORT jint JNICALL Java_com_zerotier_libzt_ZeroTier_write_1byte(JNIEnv *env, jobject thisObj,
jint fd, jbyte buf)
{
int retval = zts_write(fd, &buf, 1);
return retval > -1 ? retval : -(zts_errno);
}
