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114 lines
3.3 KiB
114 lines
3.3 KiB
/* |
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* ZeroTier SDK - Network Virtualization Everywhere |
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* Copyright (C) 2011-2017 ZeroTier, Inc. https://www.zerotier.com/ |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* You can be released from the requirements of the license by purchasing |
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* a commercial license. Buying such a license is mandatory as soon as you |
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* develop commercial closed-source software that incorporates or links |
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* directly against ZeroTier software without disclosing the source code |
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* of your own application. |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <string> |
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#include <inttypes.h> |
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#if defined(_WIN32) |
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#include <WinSock2.h> |
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#include <stdint.h> |
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#else |
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#include <netinet/in.h> |
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#include <sys/socket.h> |
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#include <netdb.h> |
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#include <arpa/inet.h> |
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#include <unistd.h> |
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#endif |
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#include "libzt.h" |
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char *msg = (char*)"welcome to the machine"; |
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uint64_t generate_adhoc_nwid_from_port(int port) |
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{ |
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std::string padding; |
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if(port < 10) { |
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padding = "000"; |
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} else if(port < 100) { |
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padding = "00"; |
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} else if(port < 1000) { |
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padding = "0"; |
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} |
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// We will join ad-hoc network ffSSSSEEEE000000 |
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// Where SSSS = start port |
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// EEEE = end port |
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padding = padding + std::to_string(port); // SSSS |
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std::string nwidstr = "ff" + padding + padding + "000000"; // ff + SSSS + EEEE + 000000 |
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return strtoull(nwidstr.c_str(), NULL, 16); |
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} |
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int main(int argc, char **argv) |
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{ |
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if (argc != 5) { |
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printf("\nlibzt example client\n"); |
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printf("client [config_file_path] [nwid] [remote_addr] [remote_port]\n"); |
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exit(0); |
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} |
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std::string path = argv[1]; |
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std::string nwidstr = argv[2]; |
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std::string remote_addr = argv[3]; |
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int remote_port = atoi(argv[4]); |
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int r=0, w=0, err=0, sockfd; |
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char rbuf[32]; |
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memset(rbuf, 0, sizeof rbuf); |
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struct sockaddr_in6 in6; |
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in6.sin6_port = htons(remote_port); |
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inet_pton(AF_INET6, remote_addr.c_str(), &(in6.sin6_addr)); |
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in6.sin6_family = AF_INET6; |
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// --- BEGIN EXAMPLE CODE |
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printf("Waiting for libzt to come online...\n"); |
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uint64_t nwid = generate_adhoc_nwid_from_port(remote_port); |
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printf("nwid=%llx\n", (unsigned long long)nwid); |
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zts_startjoin(path.c_str(), nwid); |
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uint64_t nodeId = zts_get_node_id(); |
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printf("I am %llx\n", (unsigned long long)nodeId); |
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if ((sockfd = zts_socket(AF_INET6, SOCK_STREAM, 0)) < 0) { |
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printf("error creating ZeroTier socket\n"); |
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} |
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if ((err = zts_connect(sockfd, (const struct sockaddr *)&in6, sizeof(in6))) < 0) { |
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printf("error connecting to remote host (%d)\n", err); |
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} |
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printf("sending to server...\n"); |
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w = zts_write(sockfd, msg, strlen(msg)); |
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printf("reading from server...\n"); |
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r = zts_read(sockfd, rbuf, strlen(msg)); |
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printf("Sent : %s\n", msg); |
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printf("Received : %s\n", rbuf); |
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err = zts_close(sockfd); |
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return err; |
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} |