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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2012-2013 ZeroTier Networks LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <string>
#include <stdexcept>
#include "node/Constants.hpp"
#ifdef __WINDOWS__
#include <WinSock2.h>
#include <Windows.h>
#include <tchar.h>
#include <wchar.h>
#else
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
#endif
#include "node/Constants.hpp"
#include "node/Defaults.hpp"
#include "node/Utils.hpp"
#include "node/Node.hpp"
using namespace ZeroTier;
static Node *node = (Node *)0;
static void printHelp(const char *cn,FILE *out)
{
fprintf(out,"ZeroTier One version %d.%d.%d"ZT_EOL_S"(c)2012-2013 ZeroTier Networks LLC"ZT_EOL_S,Node::versionMajor(),Node::versionMinor(),Node::versionRevision());
fprintf(out,"Licensed under the GNU General Public License v3"ZT_EOL_S""ZT_EOL_S);
fprintf(out,"Usage: %s [-switches] [home directory]"ZT_EOL_S""ZT_EOL_S,cn);
fprintf(out,"Available switches:"ZT_EOL_S);
fprintf(out," -h - Display this help"ZT_EOL_S);
fprintf(out," -p<port> - Bind to this port for network I/O"ZT_EOL_S);
fprintf(out," -c<port> - Bind to this port for local control packets"ZT_EOL_S);
}
#ifdef __UNIX_LIKE__
static void sighandlerQuit(int sig)
{
Node *n = node;
if (n)
n->terminate(Node::NODE_NORMAL_TERMINATION,"terminated by signal");
else exit(0);
}
#endif
#ifdef __WINDOWS__
static BOOL WINAPI _handlerRoutine(DWORD dwCtrlType)
{
switch(dwCtrlType) {
case CTRL_C_EVENT:
case CTRL_BREAK_EVENT:
case CTRL_CLOSE_EVENT:
case CTRL_SHUTDOWN_EVENT:
Node *n = node;
if (n)
n->terminate(Node::NODE_NORMAL_TERMINATION,"terminated by signal");
return TRUE;
}
return FALSE;
}
#endif
#ifdef __WINDOWS__
int _tmain(int argc, _TCHAR* argv[])
#else
int main(int argc,char **argv)
#endif
{
#ifdef __UNIX_LIKE__
signal(SIGHUP,SIG_IGN);
signal(SIGPIPE,SIG_IGN);
signal(SIGUSR1,SIG_IGN);
signal(SIGUSR2,SIG_IGN);
signal(SIGALRM,SIG_IGN);
signal(SIGINT,&sighandlerQuit);
signal(SIGTERM,&sighandlerQuit);
signal(SIGQUIT,&sighandlerQuit);
#endif
#ifdef __WINDOWS__
WSADATA wsaData;
WSAStartup(MAKEWORD(2,2),&wsaData);
SetConsoleCtrlHandler(&_handlerRoutine,TRUE);
#endif
const char *homeDir = (const char *)0;
unsigned int port = 0;
unsigned int controlPort = 0;
for(int i=1;i<argc;++i) {
if (argv[i][0] == '-') {
switch(argv[i][1]) {
case 'p':
port = Utils::strToUInt(argv[i] + 2);
if (port > 65535) {
printHelp(argv[0],stderr);
return -1;
}
break;
case 'c':
controlPort = Utils::strToUInt(argv[i] + 2);
if (controlPort > 65535) {
printHelp(argv[0],stderr);
return -1;
}
break;
case 'h':
case '?':
default:
printHelp(argv[0],stderr);
return 0;
}
} else {
if (homeDir) {
printHelp(argv[0],stderr);
return 0;
}
homeDir = argv[i];
break;
}
}
if ((!homeDir)||(strlen(homeDir) == 0))
homeDir = ZT_DEFAULTS.defaultHomePath.c_str();
#ifdef __UNIX_LIKE__
mkdir(homeDir,0755); // will fail if it already exists
#endif
int exitCode = 0;
node = new Node(homeDir,port,controlPort);
const char *termReason = (char *)0;
switch(node->run()) {
case Node::NODE_UNRECOVERABLE_ERROR:
exitCode = -1;
termReason = node->reasonForTermination();
fprintf(stderr,"%s: abnormal termination: %s\n",argv[0],(termReason) ? termReason : "(unknown reason)");
break;
default:
break;
}
delete node;
node = (Node *)0;
return exitCode;
}
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