int main(int argc, char** argv) {
CString sConfig;
CString sDataDir = "";
seedPRNG();
// Win32 doesn't support shell escape codes, so we do this.
CUtils::SetStdoutIsTTY(false);
CString sConsoleTitle = "ZNC " + CZNC::GetVersion();
SetConsoleTitle(sConsoleTitle.c_str());
// register Ctrl handler
if (SetConsoleCtrlHandler((PHANDLER_ROUTINE)ConsoleCtrlHandler, TRUE) == NULL)
{
CUtils::PrintMessage("Couldn't register console Ctrl handler function!");
}
// this prevents open()/read() and friends from stripping \r
// from files... simply adding _O_BINARY to the modes doesn't seem
// to be enough for some reason...
// if we don't do this, Template.cpp will break
// because it uses string.size() for file pos
// calculations.
_set_fmode(_O_BINARY);
#ifdef HAVE_LIBSSL
CRYPTO_malloc_init();
#endif
// make sure the stuff in ZNC.dll matches this exe's version... bad crashes otherwise.
if(CZNC::GetCoreVersion() != MODVERSION)
{
CUtils::PrintError("The version number in ZNC.dll doesn't match. Aborting.");
return 1;
}
// process command line arguments
int iArg, iOptIndex = -1;
bool bMakeConf = false;
bool bMakePass = false;
bool bAllowRoot = false;
#ifdef HAVE_LIBSSL
bool bMakePem = false;
while ((iArg = getopt_long(argc, argv, "hvcspd:D", g_LongOpts, &iOptIndex)) != -1) {
#else
while ((iArg = getopt_long(argc, argv, "hvcsd:D", g_LongOpts, &iOptIndex)) != -1) {
#endif /* HAVE_LIBSSL */
switch (iArg) {
case 'h':
GenerateHelp(argv[0]);
return 0;
case 'v':
cout << CZNC::GetTag() << endl;
return 0;
case 'c':
bMakeConf = true;
break;
case 's':
bMakePass = true;
break;
#ifdef HAVE_LIBSSL
case 'p':
bMakePem = true;
break;
#endif /* HAVE_LIBSSL */
case 'd':
sDataDir = CString(optarg);
break;
case 'D':
CUtils::SetDebug(true);
break;
case '?':
default:
GenerateHelp(argv[0]);
return 1;
}
}
if (optind < argc) {
sConfig = argv[optind];
}
if (!InitCsocket()) {
CUtils::PrintError("Failed to initialize Csocket!");
exit(-1);
}
CZNC* pZNC = &CZNC::Get();
pZNC->InitDirs(((argc) ? argv[0] : ""), sDataDir);
#ifdef HAVE_LIBSSL
if (bMakePem) {
pZNC->WritePemFile();
delete pZNC;
return 0;
}
#endif /* HAVE_LIBSSL */
if (bMakePass) {
CString sSalt;
CString sHash = CUtils::GetSaltedHashPass(sSalt);
CUtils::PrintMessage("Use this in the <User> section of your config:");
CUtils::PrintMessage("Pass = "******"#" + sHash + "#" + sSalt + "#");
delete pZNC;
return 0;
}
#ifndef RUN_FROM_SOURCE
if (CFile::Exists(pZNC->GetCurPath() + "/znc-uninstalled.pc")) {
CUtils::PrintError("It looks like you are running znc without installing it first.");
CUtils::PrintError("Recompile with --enable-run-from-source if you intend to do that.");
}
#endif
if (bMakeConf) {
if (!pZNC->WriteNewConfig(sConfig)) {
delete pZNC;
return 0;
}
/* Fall through to normal bootup */
}
if (!pZNC->ParseConfig(sConfig)) {
if(argc < 2)
{
CUtils::PrintMessage("\n");
CUtils::PrintMessage("Press any key to continue...");
_getch();
}
else
{
CUtils::PrintError("Unrecoverable config error.");
}
delete pZNC;
return 1;
}
if (!pZNC->OnBoot()) {
CUtils::PrintError("Exiting due to module boot errors.");
delete pZNC;
return 1;
}
// removed: checks for isRoot, bForeground, forking and signal handlers
int iRet = 0;
CUtils::PrintMessage("\n\n***************************************************");
CUtils::PrintMessage("** ZNC is now running. Do not close this window. **");
CUtils::PrintMessage("***************************************************\n\n");
try {
pZNC->Loop(&g_bMainLoop);
CUtils::PrintMessage("Terminating ...");
} catch (CException e) {
switch (e.GetType()) {
case CException::EX_Shutdown:
iRet = 0;
CUtils::PrintMessage("************** Shutting down ZNC... **************");
break;
case CException::EX_Restart: {
// strdup() because GCC is stupid
char *args[] = {
strdup(argv[0]),
strdup("--datadir"),
strdup(pZNC->GetZNCPath().c_str()),
NULL,
NULL,
NULL,
NULL,
NULL
};
int pos = 3;
if (CUtils::Debug())
args[pos++] = strdup("--debug");
#if 0
else if (bForeground)
args[pos++] = strdup("--foreground");
if (!CUtils::StdoutIsTTY())
args[pos++] = strdup("--no-color");
if (bAllowRoot)
args[pos++] = strdup("--allow-root");
#endif
args[pos++] = strdup(pZNC->GetConfigFile().c_str());
// The above code adds 4 entries to args tops
// which means the array should be big enough
CUtils::PrintMessage("************** Restarting ZNC... **************");
delete pZNC; /* stuff screws up real bad if we don't close all sockets etc. */
pZNC = NULL;
execvp(args[0], args);
CUtils::PrintError("Unable to restart znc [" + CString(strerror(errno)) + "]");
} /* Fall through */
default:
iRet = 1;
}
}
delete pZNC;
#ifdef _DEBUG
::_getch();
#endif
return iRet;
}
int main(int argc, char** argv) {
CString sConfig;
CString sDataDir = "";
seedPRNG();
CUtils::SetStdoutIsTTY(isatty(1));
int iArg, iOptIndex = -1;
bool bMakeConf = false;
bool bMakePass = false;
bool bAllowRoot = false;
bool bForeground = false;
#ifdef ALWAYS_RUN_IN_FOREGROUND
bForeground = true;
#endif
#ifdef HAVE_LIBSSL
bool bMakePem = false;
while ((iArg = getopt_long(argc, argv, "hvnrcspd:Df", g_LongOpts, &iOptIndex)) != -1) {
#else
while ((iArg = getopt_long(argc, argv, "hvnrcsd:Df", g_LongOpts, &iOptIndex)) != -1) {
#endif /* HAVE_LIBSSL */
switch (iArg) {
case 'h':
GenerateHelp(argv[0]);
return 0;
case 'v':
cout << CZNC::GetTag() << endl;
return 0;
case 'n':
CUtils::SetStdoutIsTTY(false);
break;
case 'r':
bAllowRoot = true;
break;
case 'c':
bMakeConf = true;
break;
case 's':
bMakePass = true;
break;
#ifdef HAVE_LIBSSL
case 'p':
bMakePem = true;
break;
#endif /* HAVE_LIBSSL */
case 'd':
sDataDir = CString(optarg);
break;
case 'f':
bForeground = true;
break;
case 'D':
bForeground = true;
CUtils::SetDebug(true);
break;
case '?':
default:
GenerateHelp(argv[0]);
return 1;
}
}
if (optind < argc) {
CUtils::PrintError("Specifying a config file as an argument isn't supported anymore.");
CUtils::PrintError("Use --datadir instead.");
return 1;
}
CZNC* pZNC = &CZNC::Get();
pZNC->InitDirs(((argc) ? argv[0] : ""), sDataDir);
#ifdef HAVE_LIBSSL
if (bMakePem) {
pZNC->WritePemFile();
delete pZNC;
return 0;
}
#endif /* HAVE_LIBSSL */
if (bMakePass) {
CString sSalt;
CString sHash = CUtils::GetSaltedHashPass(sSalt);
CUtils::PrintMessage("Use this in the <User> section of your config:");
CUtils::PrintMessage("Pass = "******"#" + sHash + "#" + sSalt + "#");
delete pZNC;
return 0;
}
#ifndef RUN_FROM_SOURCE
if (CFile::Exists(pZNC->GetCurPath() + "/znc-uninstalled.pc")) {
CUtils::PrintError("It looks like you are running ZNC without installing it first.");
CUtils::PrintError("Recompile with --enable-run-from-source if you intend to do that.");
}
#endif
if (isRoot()) {
CUtils::PrintError("You are running ZNC as root! Don't do that! There are not many valid");
CUtils::PrintError("reasons for this and it can, in theory, cause great damage!");
if (!bAllowRoot) {
delete pZNC;
return 1;
}
CUtils::PrintError("You have been warned.");
CUtils::PrintError("Hit CTRL+C now if you don't want to run ZNC as root.");
CUtils::PrintError("ZNC will start in 30 seconds.");
sleep(30);
}
if (bMakeConf) {
if (!pZNC->WriteNewConfig(sConfig)) {
delete pZNC;
return 0;
}
/* Fall through to normal bootup */
}
if (!pZNC->ParseConfig(sConfig)) {
CUtils::PrintError("Unrecoverable config error.");
delete pZNC;
return 1;
}
if (!pZNC->OnBoot()) {
CUtils::PrintError("Exiting due to module boot errors.");
delete pZNC;
return 1;
}
if (bForeground) {
int iPid = getpid();
CUtils::PrintMessage("Staying open for debugging [pid: " + CString(iPid) + "]");
pZNC->WritePidFile(iPid);
CUtils::PrintMessage(CZNC::GetTag());
} else {
CUtils::PrintAction("Forking into the background");
int iPid = fork();
if (iPid == -1) {
CUtils::PrintStatus(false, strerror(errno));
delete pZNC;
return 1;
}
if (iPid > 0) {
// We are the parent. We are done and will go to bed.
CUtils::PrintStatus(true, "[pid: " + CString(iPid) + "]");
pZNC->WritePidFile(iPid);
CUtils::PrintMessage(CZNC::GetTag());
/* Don't destroy pZNC here or it will delete the pid file. */
return 0;
}
/* fcntl() locks don't necessarily propagate to forked()
* children. Reacquire the lock here. Use the blocking
* call to avoid race condition with parent exiting.
*/
if (!pZNC->WaitForChildLock()) {
CUtils::PrintError("Child was unable to obtain lock on config file.");
delete pZNC;
return 1;
}
// Redirect std in/out/err to /dev/null
close(0); open("/dev/null", O_RDONLY);
close(1); open("/dev/null", O_WRONLY);
close(2); open("/dev/null", O_WRONLY);
CUtils::SetStdoutIsTTY(false);
// We are the child. There is no way we can be a process group
// leader, thus setsid() must succeed.
setsid();
// Now we are in our own process group and session (no
// controlling terminal). We are independent!
}
struct sigaction sa;
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sa.sa_handler = SIG_IGN;
sigaction(SIGPIPE, &sa, (struct sigaction*) NULL);
sa.sa_handler = signalHandler;
sigaction(SIGHUP, &sa, (struct sigaction*) NULL);
sigaction(SIGUSR1, &sa, (struct sigaction*) NULL);
// Once this signal is caught, the signal handler is reset
// to SIG_DFL. This avoids endless loop with signals.
sa.sa_flags = SA_RESETHAND;
sa.sa_handler = die;
sigaction(SIGINT, &sa, (struct sigaction*) NULL);
sigaction(SIGQUIT, &sa, (struct sigaction*) NULL);
sigaction(SIGTERM, &sa, (struct sigaction*) NULL);
int iRet = 0;
try {
pZNC->Loop();
} catch (CException e) {
switch (e.GetType()) {
case CException::EX_Shutdown:
iRet = 0;
break;
case CException::EX_Restart: {
// strdup() because GCC is stupid
char *args[] = {
strdup(argv[0]),
strdup("--datadir"),
strdup(pZNC->GetZNCPath().c_str()),
NULL,
NULL,
NULL,
NULL
};
int pos = 3;
if (CUtils::Debug())
args[pos++] = strdup("--debug");
else if (bForeground)
args[pos++] = strdup("--foreground");
if (!CUtils::StdoutIsTTY())
args[pos++] = strdup("--no-color");
if (bAllowRoot)
args[pos++] = strdup("--allow-root");
// The above code adds 3 entries to args tops
// which means the array should be big enough
delete pZNC;
execvp(args[0], args);
CUtils::PrintError("Unable to restart ZNC [" + CString(strerror(errno)) + "]");
} /* Fall through */
default:
iRet = 1;
}
}
delete pZNC;
return iRet;
}
