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#include <unistd.h>
#include <getopt.h>
#include <stdlib.h>
#include <signal.h>
#include "znc.h"
#include "Modules.h"
#include "MD5.h"
static struct option g_LongOpts[] = {
{ "help", 0, NULL, 0 },
{ "version", 0, NULL, 0 },
{ "makeconf", 0, NULL, 0 },
{ "makepass", 0, NULL, 0 },
#ifdef HAVE_LIBSSL
{ "makepem", 0, NULL, 0 },
{ "encrypt-pem", 0, NULL, 0 },
#endif /* HAVE_LIBSSL */
{ NULL }
};
void GenerateHelp(const char *appname) {
CUtils::PrintMessage("USAGE: " + CString(appname) + " [options] [config]");
CUtils::PrintMessage("Options are:");
CUtils::PrintMessage("\t--help)");
CUtils::PrintMessage("\t--version Output version information and exit");
CUtils::PrintMessage("\t--makeconf Interactively create a new config");
CUtils::PrintMessage("\t--makepass Generates a password for use in config");
#ifdef HAVE_LIBSSL
CUtils::PrintMessage("\t--makepem Generates a pemfile for use with SSL");
CUtils::PrintMessage("\t--encrypt-pem Encrypts the pemfile");
#endif /* HAVE_LIBSSL */
}
void die(int sig) {
signal(SIGSEGV, SIG_DFL);
signal(SIGABRT, SIG_DFL);
signal(SIGPIPE, SIG_DFL);
#ifdef _DEBUG
CUtils::PrintMessage("Exiting on SIG [" + CString::ToString(sig) + "]");
if ((sig == SIGABRT) || (sig == SIGSEGV)) {
abort();
}
#endif /* _DEBUG */
delete &CZNC::Get();
exit(sig);
}
int main(int argc, char** argv, char** envp) {
CString sConfig;
#ifdef HAVE_LIBSSL
// initialize ssl, allow client to have compression enabled if desired
InitSSL(CT_ZLIB);
#endif /* HAVE_LIBSSL */
int iArg, iOptIndex = -1;
bool bMakeConf = false;
bool bMakePass = false;
#ifdef HAVE_LIBSSL
bool bMakePem = false;
bool bEncPem = false;
#endif /* HAVE_LIBSSL */
while ((iArg = getopt_long(argc, argv, "c|h", g_LongOpts, &iOptIndex) != -1)) {
switch (iArg) {
case 1: { // long options
if (iOptIndex >= 0) {
CString sOption = Lower(g_LongOpts[iOptIndex].name);
if (sOption == "version") {
cout << CZNC::GetTag() << endl;
return 0;
} else if (sOption == "makeconf") {
bMakeConf = true;
} else if (sOption == "makepass") {
bMakePass = true;
#ifdef HAVE_LIBSSL
} else if (sOption == "makepem") {
bMakePem = true;
} else if (sOption == "encrypt-pem") {
bEncPem = true;
#endif /* HAVE_LIBSSL */
} else if (sOption == "help") {
GenerateHelp(argv[0]);
return 0;
}
} else {
GenerateHelp(argv[0]);
return 1;
}
break;
}
case 'h':
GenerateHelp(argv[0]);
return 0;
default: {
GenerateHelp(argv[0]);
return 1;
}
}
}
if (optind < argc) {
sConfig = argv[optind];
} else {
sConfig = "znc.conf";
}
if (bMakeConf) {
CZNC& ZNC = CZNC::Get();
ZNC.InitDirs("");
if (ZNC.WriteNewConfig(sConfig)) {
char* args[3];
if (argc > 2) {
args[0] = argv[0];
args[1] = argv[optind];
args[2] = NULL;
} else if (argc > 1) {
args[0] = argv[0];
args[1] = NULL;
args[2] = NULL;
} else {
CUtils::PrintError("Unable to launch znc [Try manually restarting]");
return 1;
}
if (execve(*argv, args, envp) == -1) {
CUtils::PrintError("Unable to launch znc [" + CString(strerror(errno)) + "]");
return 1;
}
}
return 0;
}
#ifdef HAVE_LIBSSL
if (bMakePem) {
CZNC* pZNC = &CZNC::Get();
pZNC->InitDirs("");
pZNC->WritePemFile();
delete pZNC;
return 0;
}
#endif /* HAVE_LIBSSL */
if (bMakePass) {
CString sHash = CUtils::GetHashPass();
CUtils::PrintMessage("Use this in the <User> section of your config:");
CUtils::PrintMessage("Pass = " + sHash + " -");
return 0;
}
CZNC* pZNC = &CZNC::Get();
pZNC->InitDirs(((argc) ? argv[0] : ""));
if (!pZNC->ParseConfig(sConfig)) {
CUtils::PrintError("Unrecoverable config error.");
delete pZNC;
return 1;
}
if (!pZNC->GetListeners().size()) {
CUtils::PrintError("You must supply at least one Listen port in your config.");
delete pZNC;
return 1;
}
if (!pZNC->OnBoot()) {
CUtils::PrintError("Exiting due to module boot errors.");
delete pZNC;
return 1;
}
#ifdef _DEBUG
CUtils::PrintMessage("Staying open for debugging");
#else
CUtils::PrintAction("Forking into the background");
int iPid = fork();
if (iPid == -1) {
CUtils::PrintStatus(false, strerror(errno));
delete pZNC;
exit(1);
}
if (iPid > 0) {
CUtils::PrintStatus(true, "[pid: " + CString::ToString(iPid) + "]");
pZNC->WritePidFile(iPid);
CUtils::PrintMessage(CZNC::GetTag(false));
exit(0);
}
// 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);
#endif
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 = die;
sigaction(SIGINT, &sa, (struct sigaction*) NULL);
sigaction(SIGILL, &sa, (struct sigaction*) NULL);
sigaction(SIGQUIT, &sa, (struct sigaction*) NULL);
sigaction(SIGBUS, &sa, (struct sigaction*) NULL);
sigaction(SIGSEGV, &sa, (struct sigaction*) NULL);
sigaction(SIGTERM, &sa, (struct sigaction*) NULL);
int iRet = 0;
try {
iRet = pZNC->Loop();
} catch (CException e) {
// EX_Shutdown is thrown to exit
switch (e.GetType()) {
case CException::EX_Shutdown:
iRet = 0;
default:
iRet = 1;
}
}
delete pZNC;
return iRet;
}
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