* Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
* der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
*
- * $Id: ngircd.c,v 1.18 2002/01/11 14:45:18 alex Exp $
+ * $Id: ngircd.c,v 1.27 2002/02/25 11:42:47 alex Exp $
*
* ngircd.c: Hier beginnt alles ;-)
*
* $Log: ngircd.c,v $
+ * Revision 1.27 2002/02/25 11:42:47 alex
+ * - wenn ein System sigaction() nicht kennt, so wird nun signal() verwendet.
+ *
+ * Revision 1.26 2002/02/23 19:06:47 alex
+ * - fuer SIGCHLD wird nun auch SA_NOCLDWAIT gesetzt, wenn vorhanden.
+ *
+ * Revision 1.25 2002/02/19 20:30:47 alex
+ * - SA_RESTART wird fuer Signale nur noch gesetzt, wenn es definiert ist.
+ *
+ * Revision 1.24 2002/02/19 20:08:24 alex
+ * - "Passive-Mode" implementiert: kein Auto-Conect zu anderen Servern.
+ * - NGIRCd_DebugLevel wird (fuer VERSION-Befehl) ermittelt.
+ *
+ * Revision 1.23 2002/02/17 23:40:21 alex
+ * - neue Funktion NGIRCd_VersionAddition(). NGIRCd_Version() aufgespaltet.
+ *
+ * Revision 1.22 2002/01/22 17:15:39 alex
+ * - die Fehlermeldung "interrupted system call" sollte nicht mehr auftreten.
+ *
+ * Revision 1.21 2002/01/21 00:02:11 alex
+ * - Hilfetexte korrigiert und ergaenzt (Sniffer).
+ *
+ * Revision 1.20 2002/01/18 11:12:11 alex
+ * - der Sniffer wird nun nur noch aktiviert, wenn auf Kommandozeile angegeben.
+ *
+ * Revision 1.19 2002/01/12 00:17:28 alex
+ * - ngIRCd wandelt sich nun selber in einen Daemon (Hintergrundprozess) um.
+ *
* Revision 1.18 2002/01/11 14:45:18 alex
* - Kommandozeilen-Parser implementiert: Debug- und No-Daemon-Modus, Hilfe.
*
#include <imp.h>
#include <assert.h>
+#include <errno.h>
#include <stdio.h>
#include <signal.h>
#include <string.h>
+#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
GLOBAL INT main( INT argc, CONST CHAR *argv[] )
{
BOOLEAN ok;
- INT i, n;
+ INT pid, i, n;
/* Datentypen der portab-Library ueberpruefen */
portab_check_types( );
NGIRCd_Restart = FALSE;
NGIRCd_Quit = FALSE;
NGIRCd_NoDaemon = FALSE;
+ NGIRCd_Passive = FALSE;
#ifdef DEBUG
NGIRCd_Debug = FALSE;
#endif
+#ifdef SNIFFER
+ NGIRCd_Sniffer = FALSE;
+#endif
/* Kommandozeile parsen */
for( i = 1; i < argc; i++ )
{
/* Lange Option */
+#ifdef DEBUG
+ if( strcmp( argv[i], "--debug" ) == 0 )
+ {
+ NGIRCd_Debug = TRUE;
+ ok = TRUE;
+ }
+#endif
if( strcmp( argv[i], "--help" ) == 0 )
{
Show_Version( ); puts( "" );
Show_Help( ); puts( "" );
exit( 1 );
}
- if( strcmp( argv[i], "--version" ) == 0 )
+ if( strcmp( argv[i], "--nodaemon" ) == 0 )
{
- Show_Version( );
- exit( 1 );
+ NGIRCd_NoDaemon = TRUE;
+ ok = TRUE;
}
-#ifdef DEBUG
- if( strcmp( argv[i], "--debug" ) == 0 )
+ if( strcmp( argv[i], "--passive" ) == 0 )
{
- NGIRCd_Debug = TRUE;
+ NGIRCd_Passive = TRUE;
ok = TRUE;
}
-#endif
- if( strcmp( argv[i], "--nodaemon" ) == 0 )
+#ifdef SNIFFER
+ if( strcmp( argv[i], "--sniffer" ) == 0 )
{
- NGIRCd_NoDaemon = TRUE;
+ NGIRCd_Sniffer = TRUE;
ok = TRUE;
}
+#endif
+ if( strcmp( argv[i], "--version" ) == 0 )
+ {
+ Show_Version( );
+ exit( 1 );
+ }
}
else if(( argv[i][0] == '-' ) && ( argv[i][1] != '-' ))
{
NGIRCd_NoDaemon = TRUE;
ok = TRUE;
}
+ if( argv[i][n] == 'p' )
+ {
+ NGIRCd_Passive = TRUE;
+ ok = TRUE;
+ }
+#ifdef SNIFFER
+ if( argv[i][n] == 's' )
+ {
+ NGIRCd_Sniffer = TRUE;
+ ok = TRUE;
+ }
+#endif
if( ! ok )
{
}
}
+ /* Debug-Level (fuer IRC-Befehl "VERSION") ermitteln */
+ strcpy( NGIRCd_DebugLevel, "" );
+#ifdef DEBUG
+ if( NGIRCd_Debug ) strcpy( NGIRCd_DebugLevel, "1" );
+#endif
+#ifdef SNIFFER
+ if( NGIRCd_Sniffer ) strcpy( NGIRCd_DebugLevel, "2" );
+#endif
+
while( ! NGIRCd_Quit )
{
+ /* In der Regel wird ein Sub-Prozess ge-fork()'t, der
+ * nicht mehr mit dem Terminal verbunden ist. Mit der
+ * Option "--nodaemon" kann dies (z.B. zum Debuggen)
+ * verhindert werden. */
+ if( ! NGIRCd_NoDaemon )
+ {
+ /* Daemon im Hintergrund erzeugen */
+ pid = fork( );
+ if( pid > 0 )
+ {
+ /* "alter" Prozess */
+ exit( 0 );
+ }
+ if( pid < 0 )
+ {
+ /* Fehler */
+ printf( PACKAGE": Can't fork: %s!\nFatal error, exiting now ...", strerror( errno ));
+ exit( 1 );
+ }
+ setsid( );
+ chdir( "/" );
+ }
+
/* Globale Variablen initialisieren */
NGIRCd_Start = time( NULL );
strftime( NGIRCd_StartStr, 64, "%a %b %d %Y at %H:%M:%S (%Z)", localtime( &NGIRCd_Start ));
GLOBAL CHAR *NGIRCd_Version( VOID )
{
STATIC CHAR version[126];
- CHAR txt[64];
+
+ sprintf( version, PACKAGE" version "VERSION"-%s", NGIRCd_VersionAddition( ));
+ return version;
+} /* NGIRCd_Version */
+
+
+GLOBAL CHAR *NGIRCd_VersionAddition( VOID )
+{
+ STATIC CHAR txt[64];
strcpy( txt, "" );
#ifdef USE_SYSLOG
if( txt[0] ) strcat( txt, "+" );
- else strcat( txt, "-" );
strcat( txt, "SYSLOG" );
#endif
#ifdef STRICT_RFC
if( txt[0] ) strcat( txt, "+" );
- else strcat( txt, "-" );
strcat( txt, "RFC" );
#endif
#ifdef DEBUG
if( txt[0] ) strcat( txt, "+" );
- else strcat( txt, "-" );
strcat( txt, "DEBUG" );
#endif
#ifdef SNIFFER
if( txt[0] ) strcat( txt, "+" );
- else strcat( txt, "-" );
strcat( txt, "SNIFFER" );
#endif
- sprintf( version, PACKAGE" version "VERSION"%s-"P_OSNAME"/"P_ARCHNAME, txt );
- return version;
-} /* NGIRCd_Version */
+ if( txt[0] ) strcat( txt, "-" );
+ strcat( txt, P_OSNAME"/"P_ARCHNAME );
+
+ return txt;
+} /* NGIRCd_VersionAddition */
LOCAL VOID Initialize_Signal_Handler( VOID )
/* Signal-Handler initialisieren: einige Signale
* werden ignoriert, andere speziell behandelt. */
+#ifdef HAVE_SIGACTION
+ /* sigaction() ist vorhanden */
+
struct sigaction saction;
/* Signal-Struktur initialisieren */
memset( &saction, 0, sizeof( saction ));
+ saction.sa_handler = Signal_Handler;
+#ifdef SA_RESTART
+ saction.sa_flags |= SA_RESTART;
+#endif
+#ifdef SA_NOCLDWAIT
+ saction.sa_flags |= SA_NOCLDWAIT;
+#endif
/* Signal-Handler einhaengen */
- saction.sa_handler = Signal_Handler;
sigaction( SIGINT, &saction, NULL );
sigaction( SIGQUIT, &saction, NULL );
sigaction( SIGTERM, &saction, NULL);
+ sigaction( SIGHUP, &saction, NULL);
sigaction( SIGCHLD, &saction, NULL);
/* einige Signale ignorieren */
saction.sa_handler = SIG_IGN;
sigaction( SIGPIPE, &saction, NULL );
+#else
+ /* kein sigaction() vorhanden */
+
+ /* Signal-Handler einhaengen */
+ signal( SIGINT, Signal_Handler );
+ signal( SIGQUIT, Signal_Handler );
+ signal( SIGTERM, Signal_Handler );
+ signal( SIGHUP, Signal_Handler );
+ signal( SIGCHLD, Signal_Handler );
+
+ /* einige Signale ignorieren */
+ signal( SIGPIPE, SIG_IGN );
+#endif
} /* Initialize_Signal_Handler */
case SIGINT:
case SIGQUIT:
/* wir soll(t)en uns wohl beenden ... */
- Log( LOG_WARNING, "Got signal %d, terminating now ...", Signal );
+ if( Signal == SIGTERM ) Log( LOG_WARNING, "Got TERM signal, terminating now ..." );
+ else if( Signal == SIGINT ) Log( LOG_WARNING, "Got INT signal, terminating now ..." );
+ else if( Signal == SIGQUIT ) Log( LOG_WARNING, "Got QUIT signal, terminating now ..." );
NGIRCd_Quit = TRUE;
break;
+ case SIGHUP:
+ /* neu starten */
+ Log( LOG_WARNING, "Got HUP signal, restarting now ..." );
+ NGIRCd_Restart = TRUE;
+ break;
case SIGCHLD:
/* Child-Prozess wurde beendet. Zombies vermeiden: */
while( waitpid( -1, NULL, WNOHANG ) > 0);
puts( " -d, --debug log extra debug messages" );
#endif
puts( " -n, --nodaemon don't fork and don't detatch from controlling terminal" );
- puts( " --version display this help and exit" );
- puts( " --help output version information and exit" );
+ puts( " -p, --passive disable automatic connections to other servers" );
+#ifdef SNIFFER
+ puts( " -s, --sniffer enable network sniffer and display all IRC traffic" );
+#endif
+ puts( " --version output version information and exit" );
+ puts( " --help display this help and exit" );
} /* Show_Help */
projects / ngircd-alex.git / blobdiff