X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Fngircd.c;h=ec42b2370a0deb858667a872610eee045eb4bbfb;hp=dd28d7f0dc00d47570f24d56d2a3cdac86736fbe;hb=761b2284b953de0d5c2f847e55e3fbc030243178;hpb=9f659799796fa99fddfbfa989c42a58fe6b64555 diff --git a/src/ngircd/ngircd.c b/src/ngircd/ngircd.c index dd28d7f0..ec42b237 100644 --- a/src/ngircd/ngircd.c +++ b/src/ngircd/ngircd.c @@ -1,6 +1,6 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001-2007 Alexander Barton (alex@barton.de). + * Copyright (c)2001-2010 Alexander Barton (alex@barton.de). * * 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 @@ -12,8 +12,6 @@ #include "portab.h" -static char UNUSED id[] = "$Id: ngircd.c,v 1.115 2007/04/09 01:24:05 alex Exp $"; - /** * @file * The main program, including the C function main() which is called @@ -36,13 +34,15 @@ static char UNUSED id[] = "$Id: ngircd.c,v 1.115 2007/04/09 01:24:05 alex Exp $" #include #include +#if defined(DEBUG) && defined(HAVE_MTRACE) +#include +#endif + #include "defines.h" -#include "resolve.h" #include "conn.h" -#include "client.h" +#include "conf-ssl.h" #include "channel.h" #include "conf.h" -#include "cvs-version.h" #include "lists.h" #include "log.h" #include "parse.h" @@ -87,6 +87,12 @@ main( int argc, const char *argv[] ) int i; size_t n; +#if defined(DEBUG) && defined(HAVE_MTRACE) + /* enable GNU libc memory tracing when running in debug mode + * and functionality available */ + mtrace(); +#endif + umask( 0077 ); NGIRCd_SignalQuit = NGIRCd_SignalRestart = NGIRCd_SignalRehash = false; @@ -102,14 +108,13 @@ main( int argc, const char *argv[] ) Fill_Version( ); - /* Kommandozeile parsen */ + /* parse conmmand line */ for( i = 1; i < argc; i++ ) { ok = false; if(( argv[i][0] == '-' ) && ( argv[i][1] == '-' )) { - /* Lange Option */ - + /* long option */ if( strcmp( argv[i], "--config" ) == 0 ) { if( i + 1 < argc ) @@ -164,19 +169,17 @@ main( int argc, const char *argv[] ) } else if(( argv[i][0] == '-' ) && ( argv[i][1] != '-' )) { - /* Kurze Option */ + /* short option */ for( n = 1; n < strlen( argv[i] ); n++ ) { ok = false; #ifdef DEBUG - if( argv[i][n] == 'd' ) - { + if (argv[i][n] == 'd') { NGIRCd_Debug = true; ok = true; } #endif - if( argv[i][n] == 'f' ) - { + if (argv[i][n] == 'f') { if(( ! argv[i][n + 1] ) && ( i + 1 < argc )) { /* Ok, next character is a blank */ @@ -188,31 +191,38 @@ main( int argc, const char *argv[] ) ok = true; } } - if( argv[i][n] == 'n' ) - { + + if (argv[i][n] == 'h') { + Show_Version(); + puts(""); Show_Help(); puts(""); + exit(1); + } + + if (argv[i][n] == 'n') { NGIRCd_NoDaemon = true; ok = true; } - if( argv[i][n] == 'p' ) - { + if (argv[i][n] == 'p') { NGIRCd_Passive = true; ok = true; } #ifdef SNIFFER - if( argv[i][n] == 's' ) - { + if (argv[i][n] == 's') { NGIRCd_Sniffer = true; ok = true; } #endif - if( argv[i][n] == 't' ) - { + if (argv[i][n] == 't') { configtest = true; ok = true; } - if( ! ok ) - { + if (argv[i][n] == 'V') { + Show_Version(); + exit(1); + } + + if (! ok) { printf( "%s: invalid option \"-%c\"!\n", PACKAGE_NAME, argv[i][n] ); printf( "Try \"%s --help\" for more information.\n", PACKAGE_NAME ); exit( 1 ); @@ -228,7 +238,7 @@ main( int argc, const char *argv[] ) } } - /* Debug-Level (fuer IRC-Befehl "VERSION") ermitteln */ + /* Debug-Level (for IRCs "VERSION" command) */ NGIRCd_DebugLevel[0] = '\0'; #ifdef DEBUG if( NGIRCd_Debug ) strcpy( NGIRCd_DebugLevel, "1" ); @@ -241,7 +251,6 @@ main( int argc, const char *argv[] ) } #endif - /* Soll nur die Konfigurations ueberprueft und ausgegeben werden? */ if( configtest ) { Show_Version( ); puts( "" ); @@ -284,12 +293,13 @@ main( int argc, const char *argv[] ) if( ! NGIRCd_NoDaemon ) Log_InitErrorfile( ); #endif - /* Signal-Handler initialisieren */ Initialize_Signal_Handler( ); - /* Protokoll- und Server-Identifikation erzeugen. Die vom ngIRCd - * beim PASS-Befehl verwendete Syntax sowie die erweiterten Flags - * sind in doc/Protocol.txt beschrieben. */ + /* + * create protocol and server identification. + * The syntax used by ngIRCd in PASS commands and the extended flags + * are described in doc/Protocol.txt + */ #ifdef IRCPLUS snprintf( NGIRCd_ProtoID, sizeof NGIRCd_ProtoID, "%s%s %s|%s:%s", PROTOVER, PROTOIRCPLUS, PACKAGE_NAME, PACKAGE_VERSION, IRCPLUSFLAGS ); #ifdef ZLIB @@ -303,12 +313,10 @@ main( int argc, const char *argv[] ) #ifdef ZLIB strlcat( NGIRCd_ProtoID, "Z", sizeof NGIRCd_ProtoID ); #endif - Log( LOG_DEBUG, "Protocol and server ID is \"%s\".", NGIRCd_ProtoID ); + LogDebug("Protocol and server ID is \"%s\".", NGIRCd_ProtoID); - /* Vordefinierte Channels anlegen */ Channel_InitPredefined( ); - /* Listen-Ports initialisieren */ if( Conn_InitListeners( ) < 1 ) { Log( LOG_ALERT, "Server isn't listening on a single port!" ); @@ -352,52 +360,57 @@ Fill_Version( void ) #ifdef ZLIB if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "ZLIB", sizeof NGIRCd_VersionAddition ); #endif +#ifdef SSL_SUPPORT + if ( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); + strlcat( NGIRCd_VersionAddition, "SSL", sizeof NGIRCd_VersionAddition ); +#endif #ifdef TCPWRAP if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "TCPWRAP", sizeof NGIRCd_VersionAddition ); #endif #ifdef ZEROCONF if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "ZEROCONF", sizeof NGIRCd_VersionAddition ); #endif #ifdef IDENTAUTH if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "IDENT", sizeof NGIRCd_VersionAddition ); #endif +#ifdef PAM + if (NGIRCd_VersionAddition[0]) + strlcat(NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition); + strlcat(NGIRCd_VersionAddition, "PAM", sizeof NGIRCd_VersionAddition); +#endif #ifdef DEBUG if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "DEBUG", sizeof NGIRCd_VersionAddition ); #endif #ifdef SNIFFER if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "SNIFFER", sizeof NGIRCd_VersionAddition ); #endif #ifdef STRICT_RFC if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "RFC", sizeof NGIRCd_VersionAddition ); #endif #ifdef IRCPLUS if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition ); - strlcat( NGIRCd_VersionAddition, "IRCPLUS", sizeof NGIRCd_VersionAddition ); #endif - +#ifdef WANT_IPV6 + if (NGIRCd_VersionAddition[0]) + strlcat(NGIRCd_VersionAddition, "+", sizeof(NGIRCd_VersionAddition)); + strlcat(NGIRCd_VersionAddition, "IPv6", sizeof(NGIRCd_VersionAddition)); +#endif if( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "-", sizeof( NGIRCd_VersionAddition )); @@ -407,12 +420,9 @@ Fill_Version( void ) strlcat( NGIRCd_VersionAddition, "/", sizeof( NGIRCd_VersionAddition )); strlcat( NGIRCd_VersionAddition, TARGET_OS, sizeof( NGIRCd_VersionAddition )); -#ifdef CVSDATE - snprintf( NGIRCd_Version, sizeof NGIRCd_Version,"%s %s(%s)-%s", PACKAGE_NAME, PACKAGE_VERSION, CVSDATE, NGIRCd_VersionAddition); -#else - snprintf( NGIRCd_Version, sizeof NGIRCd_Version, "%s %s-%s", PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_VersionAddition); -#endif -} /* Fill_Version */ + snprintf(NGIRCd_Version, sizeof NGIRCd_Version, "%s %s-%s", + PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_VersionAddition); + } /* Fill_Version */ /** @@ -422,29 +432,39 @@ GLOBAL void NGIRCd_Rehash( void ) { char old_name[CLIENT_ID_LEN]; + unsigned old_nicklen; Log( LOG_NOTICE|LOG_snotice, "Re-reading configuration NOW!" ); NGIRCd_SignalRehash = false; - /* Close down all listening sockets */ - Conn_ExitListeners( ); - - /* Remember old server name */ + /* Remember old server name and nick name length */ strlcpy( old_name, Conf_ServerName, sizeof old_name ); + old_nicklen = Conf_MaxNickLength; /* Re-read configuration ... */ - Conf_Rehash( ); + if (!Conf_Rehash( )) + return; - /* Recover old server name: it can't be changed during run-time */ - if( strcmp( old_name, Conf_ServerName ) != 0 ) - { - strlcpy( Conf_ServerName, old_name, sizeof Conf_ServerName ); - Log( LOG_ERR, "Can't change \"ServerName\" on runtime! Ignored new name." ); + /* Close down all listening sockets */ + Conn_ExitListeners( ); + + /* Recover old server name and nick name length: these values can't + * be changed during run-time */ + if (strcmp(old_name, Conf_ServerName) != 0 ) { + strlcpy(Conf_ServerName, old_name, sizeof Conf_ServerName); + Log(LOG_ERR, "Can't change \"ServerName\" on runtime! Ignored new name."); + } + if (old_nicklen != Conf_MaxNickLength) { + Conf_MaxNickLength = old_nicklen; + Log(LOG_ERR, "Can't change \"MaxNickLength\" on runtime! Ignored new value."); } /* Create new pre-defined channels */ Channel_InitPredefined( ); - + + if (!ConnSSL_InitLibrary()) + Log(LOG_WARNING, "Re-Initializing SSL failed, using old keys"); + /* Start listening on sockets */ Conn_InitListeners( ); @@ -461,15 +481,9 @@ NGIRCd_Rehash( void ) static 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 @@ -479,27 +493,22 @@ Initialize_Signal_Handler( void ) saction.sa_flags |= SA_NOCLDWAIT; #endif - /* Signal-Handler einhaengen */ sigaction(SIGINT, &saction, NULL); sigaction(SIGQUIT, &saction, NULL); sigaction(SIGTERM, &saction, NULL); sigaction(SIGHUP, &saction, NULL); sigaction(SIGCHLD, &saction, NULL); - /* einige Signale ignorieren */ + /* we handle write errors properly; ignore SIGPIPE */ 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 */ @@ -519,16 +528,17 @@ Signal_Handler( int Signal ) case SIGTERM: case SIGINT: case SIGQUIT: - /* wir soll(t)en uns wohl beenden ... */ + /* shut down sever */ NGIRCd_SignalQuit = true; break; case SIGHUP: - /* Konfiguration neu einlesen: */ + /* re-read configuration */ NGIRCd_SignalRehash = true; break; case SIGCHLD: - /* Child-Prozess wurde beendet. Zombies vermeiden: */ - while( waitpid( -1, NULL, WNOHANG ) > 0); + /* child-process exited, avoid zombies */ + while (waitpid( -1, NULL, WNOHANG) > 0) + ; break; #ifdef DEBUG default: @@ -546,7 +556,7 @@ static void Show_Version( void ) { puts( NGIRCd_Version ); - puts( "Copyright (c)2001-2007 Alexander Barton () and Contributors." ); + puts( "Copyright (c)2001-2010 Alexander Barton () and Contributors." ); puts( "Homepage: \n" ); puts( "This is free software; see the source for copying conditions. There is NO" ); puts( "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." ); @@ -571,8 +581,8 @@ Show_Help( void ) puts( " -s, --sniffer enable network sniffer and display all IRC traffic" ); #endif puts( " -t, --configtest read, validate and display configuration; then exit" ); - puts( " --version output version information and exit" ); - puts( " --help display this help and exit" ); + puts( " -V, --version output version information and exit" ); + puts( " -h, --help display this help and exit" ); } /* Show_Help */ @@ -665,6 +675,19 @@ NGIRCd_getNobodyID(uid_t *uid, gid_t *gid ) { struct passwd *pwd; +#ifdef __CYGWIN__ + /* Cygwin kludge. + * It can return EINVAL instead of EPERM + * so, if we are already unprivileged, + * use id of current user. + */ + if (geteuid() && getuid()) { + *uid = getuid(); + *gid = getgid(); + return true; + } +#endif + pwd = getpwnam("nobody"); if (!pwd) return false; @@ -692,6 +715,10 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) if (initialized) return true; + if (!ConnSSL_InitLibrary()) + Log(LOG_WARNING, + "Warning: Error during SSL initialization, continuing ..."); + if( Conf_Chroot[0] ) { if( chdir( Conf_Chroot ) != 0 ) { Log( LOG_ERR, "Can't chdir() in ChrootDir (%s): %s", Conf_Chroot, strerror( errno )); @@ -760,8 +787,14 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) } /* New child process */ +#ifndef NeXT (void)setsid( ); - chdir( "/" ); +#else + setpgrp(0, getpid()); +#endif + if (chdir( "/" ) != 0) + Log(LOG_ERR, "Can't change directory to '/': %s", + strerror(errno)); /* Detach stdin, stdout and stderr */ Setup_FDStreams( ); @@ -778,16 +811,16 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) pwd = getpwuid( Conf_UID ); grp = getgrgid( Conf_GID ); - Log( LOG_INFO, "Running as user %s(%ld), group %s(%ld), with PID %ld.", - pwd ? pwd->pw_name : "unknown", Conf_UID, - grp ? grp->gr_name : "unknown", Conf_GID, pid); + Log(LOG_INFO, "Running as user %s(%ld), group %s(%ld), with PID %ld.", + pwd ? pwd->pw_name : "unknown", (long)Conf_UID, + grp ? grp->gr_name : "unknown", (long)Conf_GID, (long)pid); - if ( chrooted ) { - Log( LOG_INFO, "Running chrooted, chrootdir \"%s\".", Conf_Chroot ); + if (chrooted) { + Log(LOG_INFO, "Running with root directory \"%s\".", + Conf_Chroot ); return true; - } else { - Log( LOG_INFO, "Not running chrooted." ); - } + } else + Log(LOG_INFO, "Not running with changed root directory."); /* Change working directory to home directory of the user * we are running as (only when running in daemon mode and not in chroot) */ @@ -797,7 +830,7 @@ NGIRCd_Init( bool NGIRCd_NoDaemon ) if( chdir( pwd->pw_dir ) == 0 ) Log( LOG_DEBUG, "Changed working directory to \"%s\" ...", pwd->pw_dir ); else - Log( LOG_ERR, "Can't change working directory to \"%s\": %s", + Log( LOG_INFO, "Notice: Can't change working directory to \"%s\": %s", pwd->pw_dir, strerror( errno )); } } else {