/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton (alex@barton.de).
+ * Copyright (c)2001-2011 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 "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 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.
+ *
+ * @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[] )
umask( 0077 );
- NGIRCd_SignalQuit = NGIRCd_SignalRestart = NGIRCd_SignalRehash = false;
+ NGIRCd_SignalQuit = NGIRCd_SignalRestart = false;
NGIRCd_Passive = false;
#ifdef DEBUG
NGIRCd_Debug = false;
}
}
- /* Debug-Level (for IRCs "VERSION" command) */
+ /* Debug level for "VERSION" command */
NGIRCd_DebugLevel[0] = '\0';
#ifdef DEBUG
if( NGIRCd_Debug ) strcpy( NGIRCd_DebugLevel, "1" );
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;
* 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
+ if (!io_library_init(CONNECTION_POOL)) {
+ Log(LOG_ALERT, "Fatal: Cannot initialize IO routines: %s", strerror(errno));
+ exit(1);
+ }
+
+ if (!Signals_Init()) {
+ Log(LOG_ALERT, "Fatal: Could not set up signal handlers: %s", strerror(errno));
+ exit(1);
+ }
- Initialize_Signal_Handler( );
+ srandom(getpid());
- /*
- * 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 );
#ifdef ZLIB
Pidfile_Delete( );
exit( 1 );
}
-
- /* Hauptschleife */
+
+ /* Main Run Loop */
Conn_Handler( );
- /* Alles abmelden */
Conn_Exit( );
-#ifdef ZEROCONF
- Rendezvous_Exit( );
-#endif
Client_Exit( );
Channel_Exit( );
Log_Exit( );
/**
- * 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 )
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 );
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
1 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)
/**
* 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(int fd)
} /* Setup_FDStreams */
+/**
+ * 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 )
{
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 */
+/**
+ * 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 )
{
if (fd > 2)
close(fd);
return false;
-}
+} /* NGIRCd_Init */
+
/* -eof- */
projects / ngircd-alex.git / blobdiff