/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2005 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2007 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
#include "portab.h"
-static char UNUSED id[] = "$Id: ngircd.c,v 1.103 2005/07/07 18:37:36 fw Exp $";
+static char UNUSED id[] = "$Id: ngircd.c,v 1.117 2007/11/21 12:16:36 alex Exp $";
/**
* @file
#include "parse.h"
#include "irc.h"
-#ifdef RENDEZVOUS
+#ifdef ZEROCONF
#include "rendezvous.h"
#endif
#include "ngircd.h"
-LOCAL void Initialize_Signal_Handler PARAMS(( void ));
-LOCAL void Signal_Handler PARAMS(( int Signal ));
+static void Initialize_Signal_Handler PARAMS(( void ));
+static void Signal_Handler PARAMS(( int Signal ));
-LOCAL void Show_Version PARAMS(( void ));
-LOCAL void Show_Help PARAMS(( void ));
+static void Show_Version PARAMS(( void ));
+static void Show_Help PARAMS(( void ));
-LOCAL void Pidfile_Create PARAMS(( long ));
-LOCAL void Pidfile_Delete PARAMS(( void ));
+static void Pidfile_Create PARAMS(( pid_t pid ));
+static void Pidfile_Delete PARAMS(( void ));
-LOCAL void Fill_Version PARAMS(( void ));
+static void Fill_Version PARAMS(( void ));
-LOCAL void Setup_FDStreams PARAMS(( void ));
+static void Setup_FDStreams PARAMS(( void ));
-LOCAL bool NGIRCd_Init PARAMS(( bool ));
+static bool NGIRCd_Init PARAMS(( bool ));
/**
* The main() function of ngIRCd.
Log_Init( ! NGIRCd_NoDaemon );
Conf_Init( );
- if (!NGIRCd_Init( NGIRCd_NoDaemon )) {
- Log(LOG_WARNING, "Fatal: Initialization failed");
+ /* Initialize the "main program": chroot environment, user and
+ * group ID, ... */
+ if (!NGIRCd_Init(NGIRCd_NoDaemon)) {
+ Log(LOG_ALERT, "Fatal: Initialization failed");
exit(1);
}
/* Initialize modules, part II: these functions are eventually
* called with already dropped privileges ... */
- Lists_Init( );
Channel_Init( );
Client_Init( );
-#ifdef RENDEZVOUS
+#ifdef ZEROCONF
Rendezvous_Init( );
#endif
Conn_Init( );
/* Alles abmelden */
Conn_Exit( );
-#ifdef RENDEZVOUS
+#ifdef ZEROCONF
Rendezvous_Exit( );
#endif
Client_Exit( );
Channel_Exit( );
- Lists_Exit( );
Log_Exit( );
}
Pidfile_Delete( );
* further usage, for example by the IRC command VERSION and the --version
* command line switch.
*/
-LOCAL void
+static void
Fill_Version( void )
{
NGIRCd_VersionAddition[0] = '\0';
strlcat( NGIRCd_VersionAddition, "TCPWRAP", sizeof NGIRCd_VersionAddition );
#endif
-#ifdef RENDEZVOUS
+#ifdef ZEROCONF
if( NGIRCd_VersionAddition[0] )
strlcat( NGIRCd_VersionAddition, "+", sizeof NGIRCd_VersionAddition );
- strlcat( NGIRCd_VersionAddition, "RENDEZVOUS", sizeof NGIRCd_VersionAddition );
+ strlcat( NGIRCd_VersionAddition, "ZEROCONF", sizeof NGIRCd_VersionAddition );
#endif
#ifdef IDENTAUTH
if( NGIRCd_VersionAddition[0] )
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( );
- /* Recover old server name: it can't be changed during run-time */
- if( strcmp( old_name, Conf_ServerName ) != 0 )
- {
- strcpy( Conf_ServerName, old_name );
- Log( LOG_ERR, "Can't change \"ServerName\" on runtime! Ignored new name." );
+ /* 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 */
/**
* Initialize the signal handler.
*/
-LOCAL void
+static void
Initialize_Signal_Handler( void )
{
/* Signal-Handler initialisieren: einige Signale
#endif
/* Signal-Handler einhaengen */
- sigaction( SIGINT, &saction, NULL );
- sigaction( SIGQUIT, &saction, NULL );
- sigaction( SIGTERM, &saction, NULL);
- sigaction( SIGHUP, &saction, NULL);
- sigaction( SIGCHLD, &saction, NULL);
+ 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 );
+ 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 );
+ 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 );
+ signal(SIGPIPE, SIG_IGN);
#endif
} /* Initialize_Signal_Handler */
* user and/or the system to it. For example SIGTERM and SIGHUP.
* @param Signal Number of the signal to handle.
*/
-LOCAL void
+static void
Signal_Handler( int Signal )
{
switch( Signal )
/**
* Display copyright and version information of ngIRCd on the console.
*/
-LOCAL void
+static void
Show_Version( void )
{
puts( NGIRCd_Version );
- puts( "Copyright (c)2001-2005 by Alexander Barton (<alex@barton.de>)." );
- puts( "Homepage: <http://arthur.ath.cx/~alex/ngircd/>\n" );
+ puts( "Copyright (c)2001-2007 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." );
} /* Show_Version */
* This help depends on the configuration of the executable and only shows
* options that are actually enabled.
*/
-LOCAL void
+static void
Show_Help( void )
{
#ifdef DEBUG
/**
* Delete the file containing the process ID (PID).
*/
-LOCAL void
+static void
Pidfile_Delete( void )
{
/* Pidfile configured? */
* Create the file containing the process ID of ngIRCd ("PID file").
* @param pid The process ID to be stored in this file.
*/
-LOCAL void
-Pidfile_Create( long pid )
+static void
+Pidfile_Create(pid_t pid)
{
int pidfd;
char pidbuf[64];
return;
}
- len = snprintf( pidbuf, sizeof pidbuf, "%ld\n", pid );
- if (len < 0|| len < (int)sizeof pid) {
+ len = snprintf(pidbuf, sizeof pidbuf, "%ld\n", (long)pid);
+ if (len < 0 || len >= (int)sizeof pidbuf) {
Log( LOG_ERR, "Error converting pid");
return;
}
- if( write( pidfd, pidbuf, len) != len)
+ if (write(pidfd, pidbuf, (size_t)len) != (ssize_t)len)
Log( LOG_ERR, "Can't write PID file (%s): %s", Conf_PidFile, strerror( errno ));
if( close(pidfd) != 0 )
/**
* Redirect stdin, stdout and stderr to apropriate file handles.
*/
-LOCAL void
+static void
Setup_FDStreams( void )
{
int fd;
} /* Setup_FDStreams */
-LOCAL bool
-NGIRCd_getNobodyID(unsigned int *uid, unsigned int *gid )
+static bool
+NGIRCd_getNobodyID(uid_t *uid, gid_t *gid )
{
struct passwd *pwd;
}
-LOCAL bool
+static bool
NGIRCd_Init( bool NGIRCd_NoDaemon )
{
static bool initialized;
struct passwd *pwd;
struct group *grp;
int real_errno;
- long pid;
+ pid_t pid;
if (initialized)
return true;
}
}
- if ( Conf_UID == 0 ) {
- Log( LOG_INFO, "Conf_UID must not be 0, switching to user nobody", Conf_UID );
+ 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 uid/gid of user nobody: %s",
+ 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;
}
}
- if( setgid( Conf_GID ) != 0 ) {
- real_errno = errno;
- Log( LOG_ERR, "Can't change group ID to %u: %s", Conf_GID, strerror( errno ));
- if (real_errno != EPERM)
- return false;
+ 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 ));
+ if (real_errno != EPERM)
+ return false;
+ }
}
- 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;
+ 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;
+ }
}
initialized = true;
* connected to ther controlling terminal. Use "--nodaemon"
* to disable this "daemon mode" (useful for debugging). */
if ( ! NGIRCd_NoDaemon ) {
- pid = (long)fork( );
+ pid = fork( );
if( pid > 0 ) {
/* "Old" process: exit. */
exit( 0 );
Pidfile_Create( pid );
- /* check uid we are running as, can be different from values configured (e.g. if we were already
- started with a uid > 0 */
+ /* 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();
- assert( Conf_GID > 0);
- assert( Conf_UID > 0);
-
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);
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 {
projects / ngircd-alex.git / blobdiff