/*=========================================================================*/
int main(int argc, char* argv[])
/*=========================================================================*/
{
fd_set readfds;
fd_set writefds;
int highfd;
int fdcount = 0;
/*------------------------*/
/* Parse the command line */
/*------------------------*/
if(SLPDParseCommandLine(argc,argv))
{
SLPFatal("Invalid command line\n");
}
/*------------------------------*/
/* Make sure we are root */
/*------------------------------*/
if(getuid() != 0)
{
SLPFatal("slpd must be started by root\n");
}
/*--------------------------------------*/
/* Make sure we are not already running */
/*--------------------------------------*/
if(CheckPid(G_SlpdCommandLine.pidfile))
{
SLPFatal("slpd is already running. Check %s\n",
G_SlpdCommandLine.pidfile);
}
/*------------------------------*/
/* Initialize the log file */
/*------------------------------*/
if(SLPLogFileOpen(G_SlpdCommandLine.logfile, 1))
{
SLPFatal("Could not open logfile %s\n",G_SlpdCommandLine.logfile);
}
/*------------------------*/
/* Seed the XID generator */
/*------------------------*/
SLPXidSeed();
/*---------------------*/
/* Log startup message */
/*---------------------*/
SLPLog("****************************************\n");
SLPLogTime();
SLPLog("SLPD daemon started\n");
SLPLog("****************************************\n");
SLPLog("Command line = %s\n",argv[0]);
SLPLog("Using configuration file = %s\n",G_SlpdCommandLine.cfgfile);
SLPLog("Using registration file = %s\n",G_SlpdCommandLine.regfile);
/*--------------------------------------------------*/
/* Initialize for the first time */
/*--------------------------------------------------*/
if(SLPDPropertyInit(G_SlpdCommandLine.cfgfile) ||
SLPDDatabaseInit(G_SlpdCommandLine.regfile) ||
SLPDIncomingInit() ||
SLPDOutgoingInit() ||
SLPDKnownDAInit())
{
SLPFatal("slpd initialization failed\n");
}
SLPLog("Agent Interfaces = %s\n",G_SlpdProperty.interfaces);
SLPLog("Agent URL = %s\n",G_SlpdProperty.myUrl);
/*---------------------------*/
/* make slpd run as a daemon */
/*---------------------------*/
if(Daemonize(G_SlpdCommandLine.pidfile))
{
SLPFatal("Could not daemonize\n");
}
/*-----------------------*/
/* Setup signal handlers */
/*-----------------------*/
if(SetUpSignalHandlers())
{
SLPFatal("Error setting up signal handlers.\n");
}
/*------------------------------*/
/* Set up alarm to age database */
/*------------------------------*/
alarm(SLPD_AGE_INTERVAL);
/*-----------*/
/* Main loop */
/*-----------*/
SLPLog("Startup complete entering main run loop ...\n\n");
G_SIGALRM = 0;
G_SIGTERM = 0;
G_SIGHUP = 0;
while(G_SIGTERM == 0)
{
/*--------------------------------------------------------*/
/* Load the fdsets up with all valid sockets in the list */
/*--------------------------------------------------------*/
highfd = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
LoadFdSets(&G_IncomingSocketList, &highfd, &readfds,&writefds);
LoadFdSets(&G_OutgoingSocketList, &highfd, &readfds,&writefds);
/*--------------------------------------------------*/
/* Before select(), check to see if we got a signal */
/*--------------------------------------------------*/
if(G_SIGALRM || G_SIGHUP)
{
goto HANDLE_SIGNAL;
}
/*-------------*/
/* Main select */
/*-------------*/
fdcount = select(highfd+1,&readfds,&writefds,0,0);
if(fdcount > 0) /* fdcount will be < 0 when interrupted by a signal */
{
SLPDIncomingHandler(&fdcount,&readfds,&writefds);
SLPDOutgoingHandler(&fdcount,&readfds,&writefds);
}
/*----------------*/
/* Handle signals */
/*----------------*/
HANDLE_SIGNAL:
if(G_SIGHUP)
{
HandleSigHup();
G_SIGHUP = 0;
}
if(G_SIGALRM)
{
HandleSigAlrm();
G_SIGALRM = 0;
alarm(SLPD_AGE_INTERVAL);
}
} /* End of main loop */
/* Got SIGTERM */
HandleSigTerm();
return 0;
}
/** Process main entry point.
*
* @param[in] argc - The number of command line arguments passed in @p argv.
* @param[in] argv - An array of pointers to command line arguments.
*
* @return Zero on success, or a non-zero shell error code.
*
* @remarks This routine contains the main server loop.
*/
int main(int argc, char * argv[])
{
fd_set readfds;
fd_set writefds;
int highfd;
int fdcount = 0;
time_t curtime;
struct timeval timeout;
#ifdef DEBUG
xmalloc_init("/var/log/slpd_xmalloc.log", 0);
#endif
/* Parse the command line */
if (SLPDParseCommandLine(argc,argv))
SLPDFatal("Invalid command line\n");
/* make sure we are root */
if (getuid() != 0)
SLPDFatal("slpd must be started by root\n");
/* make sure we are not already running */
if (CheckPid(G_SlpdCommandLine.pidfile))
SLPDFatal("slpd is already running. Check %s\n",
G_SlpdCommandLine.pidfile);
/* Initialize the preferences so we know if the log file is to be
overwritten or appended.*/
if (SLPDPropertyInit(G_SlpdCommandLine.cfgfile))
SLPDFatal("slpd initialization failed during property load\n");
/* make slpd run as a daemon */
if (Daemonize(G_SlpdCommandLine.pidfile))
SLPDFatal("Could not daemonize\n");
/* initialize the log file */
if (SLPDLogFileOpen(G_SlpdCommandLine.logfile, G_SlpdProperty.appendLog))
SLPDFatal("Could not open logfile %s\n",G_SlpdCommandLine.logfile);
/* seed the XID generator */
SLPXidSeed();
/* log startup message */
SLPDLog("****************************************\n");
SLPDLogTime();
SLPDLog("SLPD daemon started\n");
SLPDLog("****************************************\n");
SLPDLog("Command line = %s\n", argv[0]);
SLPDLog("Using configuration file = %s\n", G_SlpdCommandLine.cfgfile);
SLPDLog("Using registration file = %s\n", G_SlpdCommandLine.regfile);
#ifdef ENABLE_SLPv2_SECURITY
SLPDLog("Using SPI file = %s\n", G_SlpdCommandLine.spifile);
#endif
/* initialize for the first time */
SLPDPropertyReinit(); /*So we get any property-related log messages*/
if (
#ifdef ENABLE_SLPv2_SECURITY
SLPDSpiInit(G_SlpdCommandLine.spifile) ||
#endif
SLPDDatabaseInit(G_SlpdCommandLine.regfile)
|| SLPDIncomingInit()
|| SLPDOutgoingInit()
|| SLPDKnownDAInit())
SLPDFatal("slpd initialization failed\n");
SLPDLog("Agent Interfaces = %s\n", G_SlpdProperty.interfaces);
if (G_SlpdProperty.port != SLP_RESERVED_PORT)
SLPDLog("Using port %d instead of default %d\n", G_SlpdProperty.port, SLP_RESERVED_PORT);
/* drop privileges to reduce security risk */
if (DropPrivileges())
SLPDFatal("Could not drop privileges\n");
/* Setup signal handlers */
if (SetUpSignalHandlers())
SLPDFatal("Error setting up signal handlers.\n");
/* Set up alarm to age database -- a shorter start, so SAs register with us quickly on our startup */
alarm(2);
/* Main loop */
SLPDLog("Startup complete entering main run loop ...\n\n");
G_SIGALRM = 0;
G_SIGTERM = 0;
G_SIGHUP = 0;
#ifdef DEBUG
G_SIGINT = 0;
G_SIGUSR1 = 0;
#endif
while (G_SIGTERM == 0)
{
/* load the fdsets up with all valid sockets in the list */
highfd = 0;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
LoadFdSets(&G_IncomingSocketList, &highfd, &readfds, &writefds);
LoadFdSets(&G_OutgoingSocketList, &highfd, &readfds, &writefds);
/* before select(), check to see if we got a signal */
if (G_SIGALRM || G_SIGHUP)
goto HANDLE_SIGNAL;
/* main select -- we time out every second so the outgoing retries can occur*/
time(&curtime);
timeout.tv_sec = 1;
timeout.tv_usec = 0;
fdcount = select(highfd + 1, &readfds, &writefds, 0, &timeout);
if (fdcount > 0) /* fdcount will be < 0 when interrupted by a signal */
{
SLPDIncomingHandler(&fdcount, &readfds, &writefds);
SLPDOutgoingHandler(&fdcount, &readfds, &writefds);
SLPDOutgoingRetry(time(0) - curtime);
}
else if (fdcount == 0)
SLPDOutgoingRetry(time(0) - curtime);
HANDLE_SIGNAL:
if (G_SIGHUP)
{
HandleSigHup();
G_SIGHUP = 0;
}
if (G_SIGALRM)
{
HandleSigAlrm();
G_SIGALRM = 0;
alarm(SLPD_AGE_INTERVAL);
}
#ifdef DEBUG
if (G_SIGINT)
{
HandleSigInt();
G_SIGINT = 0;
}
if (G_SIGUSR1)
{
HandleSigUsr1();
G_SIGUSR1 = 0;
}
#endif
} /* End of main loop */
/* Got SIGTERM */
HandleSigTerm();
return 0;
}