/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de).
+ * Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors.
*
* 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
* Please read the file COPYING, README and AUTHORS for more information.
*/
-
#include "portab.h"
/**
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/wait.h>
#include <fcntl.h>
#include <pwd.h>
#include <grp.h>
#include "defines.h"
#include "conn.h"
+#include "class.h"
#include "conf-ssl.h"
#include "channel.h"
#include "conf.h"
#include "lists.h"
#include "log.h"
#include "parse.h"
+#include "sighandlers.h"
+#include "io.h"
#include "irc.h"
-#ifdef ZEROCONF
-#include "rendezvous.h"
-#endif
-
#include "exp.h"
#include "ngircd.h"
-static void Initialize_Signal_Handler PARAMS(( void ));
-static void Signal_Handler PARAMS(( int Signal ));
-
static void Show_Version PARAMS(( void ));
static void Show_Help PARAMS(( void ));
static void Fill_Version PARAMS(( void ));
-static void Setup_FDStreams PARAMS(( void ));
+static void Random_Init PARAMS(( void ));
+
+static void Setup_FDStreams PARAMS(( int fd ));
static bool NGIRCd_Init PARAMS(( bool ));
+
/**
* The main() function of ngIRCd.
+ *
* Here all starts: this function is called by the operating system loader,
* it is the first portion of code executed of ngIRCd.
+ *
* @param argc The number of arguments passed to ngIRCd on the command line.
* @param argv An array containing all the arguments passed to ngIRCd.
* @return Global exit code of ngIRCd, zero on success.
*/
GLOBAL int
-main( int argc, const char *argv[] )
+main(int argc, const char *argv[])
{
bool ok, configtest = false;
bool NGIRCd_NoDaemon = false;
mtrace();
#endif
- umask( 0077 );
+ umask(0077);
- NGIRCd_SignalQuit = NGIRCd_SignalRestart = NGIRCd_SignalRehash = false;
+ NGIRCd_SignalQuit = NGIRCd_SignalRestart = false;
NGIRCd_Passive = false;
#ifdef DEBUG
NGIRCd_Debug = false;
#ifdef SNIFFER
NGIRCd_Sniffer = false;
#endif
- strlcpy( NGIRCd_ConfFile, SYSCONFDIR, sizeof( NGIRCd_ConfFile ));
- strlcat( NGIRCd_ConfFile, CONFIG_FILE, sizeof( NGIRCd_ConfFile ));
+ strlcpy(NGIRCd_ConfFile, SYSCONFDIR, sizeof(NGIRCd_ConfFile));
+ strlcat(NGIRCd_ConfFile, CONFIG_FILE, sizeof(NGIRCd_ConfFile));
- Fill_Version( );
+ Fill_Version();
/* parse conmmand line */
- for( i = 1; i < argc; i++ )
- {
+ for (i = 1; i < argc; i++) {
ok = false;
- if(( argv[i][0] == '-' ) && ( argv[i][1] == '-' ))
- {
+ if (argv[i][0] == '-' && argv[i][1] == '-') {
/* long option */
- if( strcmp( argv[i], "--config" ) == 0 )
- {
- if( i + 1 < argc )
- {
+ if (strcmp(argv[i], "--config") == 0) {
+ if (i + 1 < argc) {
/* Ok, there's an parameter left */
- strlcpy( NGIRCd_ConfFile, argv[i + 1], sizeof( NGIRCd_ConfFile ));
-
+ strlcpy(NGIRCd_ConfFile, argv[i+1],
+ sizeof(NGIRCd_ConfFile));
/* next parameter */
i++; ok = true;
}
}
- if( strcmp( argv[i], "--configtest" ) == 0 )
- {
+ if (strcmp(argv[i], "--configtest") == 0) {
configtest = true;
ok = true;
}
#ifdef DEBUG
- if( strcmp( argv[i], "--debug" ) == 0 )
- {
+ 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], "--help") == 0) {
+ Show_Version();
+ puts(""); Show_Help( ); puts( "" );
+ exit(1);
}
- if( strcmp( argv[i], "--nodaemon" ) == 0 )
- {
+ if (strcmp(argv[i], "--nodaemon") == 0) {
NGIRCd_NoDaemon = true;
ok = true;
}
- if( strcmp( argv[i], "--passive" ) == 0 )
- {
+ if (strcmp(argv[i], "--passive") == 0) {
NGIRCd_Passive = true;
ok = true;
}
#ifdef SNIFFER
- if( strcmp( argv[i], "--sniffer" ) == 0 )
- {
+ if (strcmp(argv[i], "--sniffer") == 0) {
NGIRCd_Sniffer = true;
ok = true;
}
#endif
- if( strcmp( argv[i], "--version" ) == 0 )
- {
- Show_Version( );
- exit( 1 );
+ if (strcmp(argv[i], "--version") == 0) {
+ Show_Version();
+ exit(1);
}
}
- else if(( argv[i][0] == '-' ) && ( argv[i][1] != '-' ))
- {
+ else if(argv[i][0] == '-' && argv[i][1] != '-') {
/* short option */
- for( n = 1; n < strlen( argv[i] ); n++ )
- {
+ for (n = 1; n < strlen(argv[i]); n++) {
ok = false;
#ifdef DEBUG
if (argv[i][n] == 'd') {
}
#endif
if (argv[i][n] == 'f') {
- if(( ! argv[i][n + 1] ) && ( i + 1 < argc ))
- {
+ if (!argv[i][n+1] && i+1 < argc) {
/* Ok, next character is a blank */
- strlcpy( NGIRCd_ConfFile, argv[i + 1], sizeof( NGIRCd_ConfFile ));
+ strlcpy(NGIRCd_ConfFile, argv[i+1],
+ sizeof(NGIRCd_ConfFile));
/* go to the following parameter */
i++;
- n = strlen( argv[i] );
+ n = strlen(argv[i]);
ok = true;
}
}
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 );
+ 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);
}
}
}
- if( ! ok )
- {
- printf( "%s: invalid option \"%s\"!\n", PACKAGE_NAME, argv[i] );
- printf( "Try \"%s --help\" for more information.\n", PACKAGE_NAME );
- exit( 1 );
+ if (!ok) {
+ printf("%s: invalid option \"%s\"!\n",
+ PACKAGE_NAME, argv[i]);
+ printf("Try \"%s --help\" for more information.\n",
+ PACKAGE_NAME);
+ exit(1);
}
}
- /* Debug-Level (for IRCs "VERSION" command) */
+ /* Debug level for "VERSION" command */
NGIRCd_DebugLevel[0] = '\0';
#ifdef DEBUG
- if( NGIRCd_Debug ) strcpy( NGIRCd_DebugLevel, "1" );
+ if (NGIRCd_Debug)
+ strcpy(NGIRCd_DebugLevel, "1");
#endif
#ifdef SNIFFER
- if( NGIRCd_Sniffer )
- {
+ if (NGIRCd_Sniffer) {
NGIRCd_Debug = true;
- strcpy( NGIRCd_DebugLevel, "2" );
+ strcpy(NGIRCd_DebugLevel, "2");
}
#endif
- if( configtest )
- {
- Show_Version( ); puts( "" );
- exit( Conf_Test( ));
+ if (configtest) {
+ Show_Version(); puts("");
+ exit(Conf_Test());
}
-
- while( ! NGIRCd_SignalQuit )
- {
+
+ while (!NGIRCd_SignalQuit) {
/* Initialize global variables */
- NGIRCd_Start = time( NULL );
- (void)strftime( NGIRCd_StartStr, 64, "%a %b %d %Y at %H:%M:%S (%Z)", localtime( &NGIRCd_Start ));
+ NGIRCd_Start = time(NULL);
+ (void)strftime(NGIRCd_StartStr, 64,
+ "%a %b %d %Y at %H:%M:%S (%Z)",
+ localtime(&NGIRCd_Start));
- NGIRCd_SignalRehash = false;
NGIRCd_SignalRestart = false;
NGIRCd_SignalQuit = false;
/* Initialize modules, part I */
- Log_Init( ! NGIRCd_NoDaemon );
- Conf_Init( );
+ Log_Init(!NGIRCd_NoDaemon);
+ Random_Init();
+ Conf_Init();
+ Log_ReInit();
/* Initialize the "main program": chroot environment, user and
* group ID, ... */
/* Initialize modules, part II: these functions are eventually
* called with already dropped privileges ... */
- Channel_Init( );
- Client_Init( );
-#ifdef ZEROCONF
- Rendezvous_Init( );
-#endif
- Conn_Init( );
-
-#ifdef DEBUG
- /* Redirect stderr handle to "error file" for debugging
- * when not running in "no daemon" mode: */
- if( ! NGIRCd_NoDaemon ) Log_InitErrorfile( );
-#endif
+ Channel_Init();
+ Client_Init();
+ Conn_Init();
+ Class_Init();
+
+ if (!io_library_init(CONNECTION_POOL)) {
+ Log(LOG_ALERT,
+ "Fatal: Could not initialize IO routines: %s",
+ strerror(errno));
+ exit(1);
+ }
- Initialize_Signal_Handler( );
+ if (!Signals_Init()) {
+ Log(LOG_ALERT,
+ "Fatal: Could not set up signal handlers: %s",
+ strerror(errno));
+ exit(1);
+ }
- /*
- * create protocol and server identification.
- * The syntax used by ngIRCd in PASS commands and the extended flags
- * are described in doc/Protocol.txt
- */
+ /* Create protocol and server identification. The syntax
+ * used by ngIRCd in PASS commands and the known "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 );
+ snprintf(NGIRCd_ProtoID, sizeof NGIRCd_ProtoID, "%s%s %s|%s:%s",
+ PROTOVER, PROTOIRCPLUS, PACKAGE_NAME, PACKAGE_VERSION,
+ IRCPLUSFLAGS);
#ifdef ZLIB
- strcat( NGIRCd_ProtoID, "Z" );
-#endif
- if( Conf_OperCanMode ) strcat( NGIRCd_ProtoID, "o" );
-#else
- snprintf( NGIRCd_ProtoID, sizeof NGIRCd_ProtoID, "%s%s %s|%s", PROTOVER, PROTOIRC, PACKAGE_NAME, PACKAGE_VERSION );
-#endif
- strlcat( NGIRCd_ProtoID, " P", sizeof NGIRCd_ProtoID );
+ strcat(NGIRCd_ProtoID, "Z");
+#endif
+ if (Conf_OperCanMode)
+ strcat(NGIRCd_ProtoID, "o");
+#else /* IRCPLUS */
+ snprintf(NGIRCd_ProtoID, sizeof NGIRCd_ProtoID, "%s%s %s|%s",
+ PROTOVER, PROTOIRC, PACKAGE_NAME, PACKAGE_VERSION);
+#endif /* IRCPLUS */
+ strlcat(NGIRCd_ProtoID, " P", sizeof NGIRCd_ProtoID);
#ifdef ZLIB
- strlcat( NGIRCd_ProtoID, "Z", sizeof NGIRCd_ProtoID );
+ strlcat(NGIRCd_ProtoID, "Z", sizeof NGIRCd_ProtoID);
#endif
LogDebug("Protocol and server ID is \"%s\".", NGIRCd_ProtoID);
- Channel_InitPredefined( );
+ Channel_InitPredefined();
- if( Conn_InitListeners( ) < 1 )
- {
- Log( LOG_ALERT, "Server isn't listening on a single port!" );
- Log( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
- Pidfile_Delete( );
- exit( 1 );
+ if (Conn_InitListeners() < 1) {
+ Log(LOG_ALERT,
+ "Server isn't listening on a single port!" );
+ Log(LOG_ALERT,
+ "%s exiting due to fatal errors!", PACKAGE_NAME);
+ Pidfile_Delete();
+ exit(1);
}
-
- /* Hauptschleife */
- Conn_Handler( );
-
- /* Alles abmelden */
- Conn_Exit( );
-#ifdef ZEROCONF
- Rendezvous_Exit( );
-#endif
- Client_Exit( );
- Channel_Exit( );
- Log_Exit( );
+
+ /* Main Run Loop */
+ Conn_Handler();
+
+ Conn_Exit();
+ Client_Exit();
+ Channel_Exit();
+ Class_Exit();
+ Log_Exit();
+ Signals_Exit();
}
- Pidfile_Delete( );
+ Pidfile_Delete();
return 0;
} /* main */
/**
- * Generate ngIRCd "version string".
- * This string is generated once and then stored in NGIRCd_Version for
- * further usage, for example by the IRC command VERSION and the --version
- * command line switch.
+ * Generate ngIRCd "version strings".
+ *
+ * The ngIRCd version information is generated once and then stored in the
+ * NGIRCd_Version and NGIRCd_VersionAddition string variables for further
+ * usage, for example by the IRC command "VERSION" and the --version command
+ * line switch.
*/
static void
-Fill_Version( void )
+Fill_Version(void)
{
NGIRCd_VersionAddition[0] = '\0';
-#ifdef SYSLOG
- strlcpy( NGIRCd_VersionAddition, "SYSLOG", sizeof NGIRCd_VersionAddition );
+#ifdef ICONV
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "CHARCONV",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef ZLIB
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "ZLIB", sizeof NGIRCd_VersionAddition );
+#ifdef DEBUG
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "DEBUG",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef SSL_SUPPORT
- if ( NGIRCd_VersionAddition[0] ) strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
- strlcat( NGIRCd_VersionAddition, "SSL", sizeof NGIRCd_VersionAddition );
+#ifdef IDENTAUTH
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "IDENT",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef TCPWRAP
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "TCPWRAP", sizeof NGIRCd_VersionAddition );
+#ifdef WANT_IPV6
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, "IPv6",
+ sizeof(NGIRCd_VersionAddition));
#endif
-#ifdef ZEROCONF
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "ZEROCONF", sizeof NGIRCd_VersionAddition );
+#ifdef IRCPLUS
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "IRCPLUS",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef IDENTAUTH
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "IDENT", sizeof NGIRCd_VersionAddition );
+#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 );
+#ifdef STRICT_RFC
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "RFC",
+ sizeof NGIRCd_VersionAddition);
#endif
#ifdef SNIFFER
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "SNIFFER", sizeof NGIRCd_VersionAddition );
+ 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 );
+#ifdef SSL_SUPPORT
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "SSL",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef IRCPLUS
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
-
- strlcat( NGIRCd_VersionAddition, "IRCPLUS", sizeof NGIRCd_VersionAddition );
+#ifdef SYSLOG
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "SYSLOG",
+ sizeof NGIRCd_VersionAddition);
#endif
-#ifdef WANT_IPV6
+#ifdef TCPWRAP
if (NGIRCd_VersionAddition[0])
- strlcat(NGIRCd_VersionAddition, "+", sizeof(NGIRCd_VersionAddition));
-
- strlcat(NGIRCd_VersionAddition, "IPv6", sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "TCPWRAP",
+ sizeof NGIRCd_VersionAddition);
#endif
- if( NGIRCd_VersionAddition[0] )
- strlcat( NGIRCd_VersionAddition, "-", sizeof( NGIRCd_VersionAddition ));
-
- strlcat( NGIRCd_VersionAddition, TARGET_CPU, sizeof( NGIRCd_VersionAddition ));
- strlcat( NGIRCd_VersionAddition, "/", sizeof( NGIRCd_VersionAddition ));
- strlcat( NGIRCd_VersionAddition, TARGET_VENDOR, sizeof( NGIRCd_VersionAddition ));
- strlcat( NGIRCd_VersionAddition, "/", sizeof( NGIRCd_VersionAddition ));
- strlcat( NGIRCd_VersionAddition, TARGET_OS, sizeof( NGIRCd_VersionAddition ));
+#ifdef ZLIB
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "+",
+ sizeof NGIRCd_VersionAddition);
+ strlcat(NGIRCd_VersionAddition, "ZLIB",
+ sizeof NGIRCd_VersionAddition);
+#endif
+ if (NGIRCd_VersionAddition[0])
+ strlcat(NGIRCd_VersionAddition, "-",
+ sizeof(NGIRCd_VersionAddition));
+
+ strlcat(NGIRCd_VersionAddition, HOST_CPU,
+ sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, "/", sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, HOST_VENDOR,
+ sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, "/", sizeof(NGIRCd_VersionAddition));
+ strlcat(NGIRCd_VersionAddition, HOST_OS,
+ sizeof(NGIRCd_VersionAddition));
snprintf(NGIRCd_Version, sizeof NGIRCd_Version, "%s %s-%s",
PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_VersionAddition);
- } /* Fill_Version */
-
-
-/**
- * Reload the server configuration file.
- */
-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;
-
- /* Remember old server name and nick name length */
- strlcpy( old_name, Conf_ServerName, sizeof old_name );
- old_nicklen = Conf_MaxNickLength;
-
- /* Re-read configuration ... */
- if (!Conf_Rehash( ))
- return;
-
- /* 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( );
-
- /* Sync configuration with established connections */
- Conn_SyncServerStruct( );
-
- Log( LOG_NOTICE|LOG_snotice, "Re-reading of configuration done." );
-} /* NGIRCd_Rehash */
-
-
-/**
- * Initialize the signal handler.
- */
-static void
-Initialize_Signal_Handler( void )
-{
-#ifdef HAVE_SIGACTION
- struct sigaction saction;
-
- 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
-
- sigaction(SIGINT, &saction, NULL);
- sigaction(SIGQUIT, &saction, NULL);
- sigaction(SIGTERM, &saction, NULL);
- sigaction(SIGHUP, &saction, NULL);
- sigaction(SIGCHLD, &saction, NULL);
-
- /* we handle write errors properly; ignore SIGPIPE */
- saction.sa_handler = SIG_IGN;
- sigaction(SIGPIPE, &saction, NULL);
-#else
- signal(SIGINT, Signal_Handler);
- signal(SIGQUIT, Signal_Handler);
- signal(SIGTERM, Signal_Handler);
- signal(SIGHUP, Signal_Handler);
- signal(SIGCHLD, Signal_Handler);
-
- signal(SIGPIPE, SIG_IGN);
-#endif
-} /* Initialize_Signal_Handler */
-
-
-/**
- * Signal handler of ngIRCd.
- * This function is called whenever ngIRCd catches a signal sent by the
- * user and/or the system to it. For example SIGTERM and SIGHUP.
- * @param Signal Number of the signal to handle.
- */
-static void
-Signal_Handler( int Signal )
-{
- switch( Signal )
- {
- case SIGTERM:
- case SIGINT:
- case SIGQUIT:
- /* shut down sever */
- NGIRCd_SignalQuit = true;
- break;
- case SIGHUP:
- /* re-read configuration */
- NGIRCd_SignalRehash = true;
- break;
- case SIGCHLD:
- /* child-process exited, avoid zombies */
- while (waitpid( -1, NULL, WNOHANG) > 0)
- ;
- break;
-#ifdef DEBUG
- default:
- /* unbekanntes bzw. unbehandeltes Signal */
- Log( LOG_DEBUG, "Got signal %d! Ignored.", Signal );
-#endif
- }
-} /* Signal_Handler */
+} /* Fill_Version */
/**
Show_Version( void )
{
puts( NGIRCd_Version );
- puts( "Copyright (c)2001-201
0 Alexander Barton (<alex@barton.de>) and Contributors." );
+ puts( "Copyright (c)2001-201
3 Alexander Barton (<alex@barton.de>) and Contributors." );
puts( "Homepage: <http://ngircd.barton.de/>\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." );
/**
* Create the file containing the process ID of ngIRCd ("PID file").
- * @param pid The process ID to be stored in this file.
+ *
+ * @param pid The process ID to be stored in this file.
*/
static void
Pidfile_Create(pid_t pid)
len = snprintf(pidbuf, sizeof pidbuf, "%ld\n", (long)pid);
if (len < 0 || len >= (int)sizeof pidbuf) {
- Log( LOG_ERR, "Error converting pid");
+ Log(LOG_ERR, "Error converting process ID!");
+ close(pidfd);
return;
}
if (write(pidfd, pidbuf, (size_t)len) != (ssize_t)len)
- Log( LOG_ERR, "Can't write PID file (%s): %s", Conf_PidFile, strerror( errno ));
+ Log(LOG_ERR, "Can't write PID file (%s): %s!", Conf_PidFile,
+ strerror(errno));
- if( close(pidfd) != 0 )
- Log( LOG_ERR, "Error closing PID file (%s): %s", Conf_PidFile, strerror( errno ));
+ if (close(pidfd) != 0)
+ Log(LOG_ERR, "Error closing PID file (%s): %s!", Conf_PidFile,
+ strerror(errno));
} /* Pidfile_Create */
/**
* Redirect stdin, stdout and stderr to apropriate file handles.
+ *
+ * @param fd The file handle stdin, stdout and stderr should be redirected to.
*/
static void
-Setup_FDStreams( void )
+Setup_FDStreams(int fd)
{
- int fd;
-
- /* Test if we can open /dev/null for reading and writing. If not
- * we are most probably chrooted already and the server has been
- * restarted. So we simply don't try to redirect stdXXX ... */
- fd = open( "/dev/null", O_RDWR );
- if ( fd < 0 ) {
- Log(LOG_WARNING, "Could not open /dev/null: %s", strerror(errno));
+ if (fd < 0)
return;
- }
fflush(stdout);
fflush(stderr);
/* Create new stdin(0), stdout(1) and stderr(2) descriptors */
dup2( fd, 0 ); dup2( fd, 1 ); dup2( fd, 2 );
-
- /* Close newly opened file descriptor if not stdin/out/err */
- if( fd > 2 ) close( fd );
} /* Setup_FDStreams */
+#if !defined(SINGLE_USER_OS)
+
+/**
+ * Get user and group ID of unprivileged "nobody" user.
+ *
+ * @param uid User ID
+ * @param gid Group ID
+ * @return true on success.
+ */
static bool
NGIRCd_getNobodyID(uid_t *uid, gid_t *gid )
{
#endif
pwd = getpwnam("nobody");
- if (!pwd) return false;
+ if (!pwd)
+ return false;
- if ( !pwd->pw_uid || !pwd->pw_gid)
+ if (!pwd->pw_uid || !pwd->pw_gid)
return false;
- *uid = pwd->pw_uid;
+ *uid = pwd->pw_uid;
*gid = pwd->pw_gid;
endpwent();
- return true;
+ return true;
+} /* NGIRCd_getNobodyID */
+
+#endif
+
+
+static bool
+Random_Init_Kern(const char *file)
+{
+ unsigned int seed;
+ bool ret = false;
+ int fd = open(file, O_RDONLY);
+ if (fd >= 0) {
+ if (read(fd, &seed, sizeof(seed)) == sizeof(seed))
+ ret = true;
+ close(fd);
+ srand(seed);
+ }
+ return ret;
+}
+
+/**
+ * Initialize libc rand(3) number generator
+ */
+static void
+Random_Init(void)
+{
+ if (Random_Init_Kern("/dev/urandom"))
+ return;
+ if (Random_Init_Kern("/dev/random"))
+ return;
+ if (Random_Init_Kern("/dev/arandom"))
+ return;
+ srand(rand() ^ (unsigned)getpid() ^ (unsigned)time(NULL));
}
+/**
+ * Initialize ngIRCd daemon.
+ *
+ * @param NGIRCd_NoDaemon Set to true if ngIRCd should run in the
+ * foreground (and not as a daemon).
+ * @return true on success.
+ */
static bool
-NGIRCd_Init( bool NGIRCd_NoDaemon )
+NGIRCd_Init(bool NGIRCd_NoDaemon)
{
static bool initialized;
bool chrooted = false;
struct passwd *pwd;
struct group *grp;
- int real_errno;
+ int real_errno, fd = -1;
pid_t pid;
if (initialized)
return true;
+ if (!NGIRCd_NoDaemon) {
+ /* open /dev/null before chroot() */
+ fd = open( "/dev/null", O_RDWR);
+ if (fd < 0)
+ Log(LOG_WARNING, "Could not open /dev/null: %s",
+ strerror(errno));
+ }
+
+ /* SSL initialization */
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 ));
- return false;
+ "Error during SSL initialization, continuing without SSL ...");
+
+ /* Change root */
+ if (Conf_Chroot[0]) {
+ if (chdir(Conf_Chroot) != 0) {
+ Log(LOG_ERR, "Can't chdir() in ChrootDir (%s): %s!",
+ Conf_Chroot, strerror(errno));
+ goto out;
}
- if( chroot( Conf_Chroot ) != 0 ) {
- if (errno != EPERM) {
- Log( LOG_ERR, "Can't change root directory to \"%s\": %s",
- Conf_Chroot, strerror( errno ));
-
- return false;
- }
+ if (chroot(Conf_Chroot) != 0) {
+ Log(LOG_ERR,
+ "Can't change root directory to \"%s\": %s!",
+ Conf_Chroot, strerror(errno));
+ goto out;
} else {
chrooted = true;
- Log( LOG_INFO, "Changed root and working directory to \"%s\".", Conf_Chroot );
+ Log(LOG_INFO,
+ "Changed root and working directory to \"%s\".",
+ Conf_Chroot);
}
}
+#if !defined(SINGLE_USER_OS)
+ /* Check user ID */
if (Conf_UID == 0) {
- Log(LOG_INFO, "ServerUID must not be 0, using \"nobody\" instead.", Conf_UID);
-
- if (! NGIRCd_getNobodyID(&Conf_UID, &Conf_GID)) {
- Log(LOG_WARNING, "Could not get user/group ID of user \"nobody\": %s",
- errno ? strerror(errno) : "not found" );
- return false;
+ pwd = getpwuid(0);
+ Log(LOG_INFO,
+ "ServerUID must not be %s(0), using \"nobody\" instead.",
+ pwd ? pwd->pw_name : "?");
+ if (!NGIRCd_getNobodyID(&Conf_UID, &Conf_GID)) {
+ Log(LOG_WARNING,
+ "Could not get user/group ID of user \"nobody\": %s",
+ errno ? strerror(errno) : "not found" );
+ goto out;
}
}
+ /* Change group ID */
if (getgid() != Conf_GID) {
- /* Change group ID */
if (setgid(Conf_GID) != 0) {
real_errno = errno;
- Log( LOG_ERR, "Can't change group ID to %u: %s", Conf_GID, strerror( errno ));
+ grp = getgrgid(Conf_GID);
+ Log(LOG_ERR, "Can't change group ID to %s(%u): %s!",
+ grp ? grp->gr_name : "?", Conf_GID,
+ strerror(errno));
if (real_errno != EPERM)
- return false;
+ goto out;
}
}
+#endif
+ /* Change user ID */
if (getuid() != Conf_UID) {
- /* Change user ID */
if (setuid(Conf_UID) != 0) {
real_errno = errno;
- Log(LOG_ERR, "Can't change user ID to %u: %s", Conf_UID, strerror(errno));
- if (real_errno != EPERM)
- return false;
+ pwd = getpwuid(Conf_UID);
+ Log(LOG_ERR, "Can't change user ID to %s(%u): %s!",
+ pwd ? pwd->pw_name : "?", Conf_UID,
+ strerror(errno));
+ if (real_errno != EPERM)
+ goto out;
}
}
/* Normally a child process is forked which isn't any longer
* connected to ther controlling terminal. Use "--nodaemon"
* to disable this "daemon mode" (useful for debugging). */
- if ( ! NGIRCd_NoDaemon ) {
- pid = fork( );
- if( pid > 0 ) {
+ if (!NGIRCd_NoDaemon) {
+ pid = fork();
+ if (pid > 0) {
/* "Old" process: exit. */
- exit( 0 );
+ exit(0);
}
- if( pid < 0 ) {
+ if (pid < 0) {
/* Error!? */
- fprintf( stderr, "%s: Can't fork: %s!\nFatal error, exiting now ...\n",
- PACKAGE_NAME, strerror( errno ));
- exit( 1 );
+ fprintf(stderr,
+ "%s: Can't fork: %s!\nFatal error, exiting now ...\n",
+ PACKAGE_NAME, strerror(errno));
+ exit(1);
}
/* New child process */
-#ifndef NeXT
- (void)setsid( );
+#ifdef HAVE_SETSID
+ (void)setsid();
#else
setpgrp(0, getpid());
#endif
- if (chdir( "/" ) != 0)
- Log(LOG_ERR, "Can't change directory to '/': %s",
+ if (chdir("/") != 0)
+ Log(LOG_ERR, "Can't change directory to '/': %s!",
strerror(errno));
/* Detach stdin, stdout and stderr */
- Setup_FDStreams( );
+ Setup_FDStreams(fd);
+ if (fd > 2)
+ close(fd);
}
pid = getpid();
- Pidfile_Create( pid );
+ Pidfile_Create(pid);
/* Check UID/GID we are running as, can be different from values
* configured (e. g. if we were already started with a UID>0. */
Conf_UID = getuid();
Conf_GID = getgid();
- pwd = getpwuid( Conf_UID );
- grp = getgrgid( Conf_GID );
+ 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", (long)Conf_UID,
- grp ? grp->gr_name : "unknown", (long)Conf_GID, (long)pid);
+ pwd ? pwd->pw_name : "unknown", (long)Conf_UID,
+ grp ? grp->gr_name : "unknown", (long)Conf_GID, (long)pid);
if (chrooted) {
Log(LOG_INFO, "Running with root directory \"%s\".",
} 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) */
-
- if ( pwd ) {
- if (!NGIRCd_NoDaemon ) {
- if( chdir( pwd->pw_dir ) == 0 )
- Log( LOG_DEBUG, "Changed working directory to \"%s\" ...", pwd->pw_dir );
- else
- Log( LOG_INFO, "Notice: Can't change working directory to \"%s\": %s",
- pwd->pw_dir, strerror( errno ));
- }
- } else {
- Log( LOG_ERR, "Can't get user informaton for UID %d!?", Conf_UID );
- }
+ /* Change working directory to home directory of the user we are
+ * running as (only when running in daemon mode and not in chroot) */
+
+ if (NGIRCd_NoDaemon)
+ return true;
+
+ if (pwd) {
+ if (chdir(pwd->pw_dir) == 0)
+ Log(LOG_DEBUG,
+ "Changed working directory to \"%s\" ...",
+ pwd->pw_dir);
+ else
+ Log(LOG_INFO,
+ "Notice: Can't change working directory to \"%s\": %s!",
+ pwd->pw_dir, strerror(errno));
+ } else
+ Log(LOG_ERR, "Can't get user informaton for UID %d!?", Conf_UID);
+
+ return true;
+ out:
+ if (fd > 2)
+ close(fd);
+ return false;
+} /* NGIRCd_Init */
-return true;
-}
/* -eof- */
projects / ngircd-alex.git / blobdiff