ngircd-tor/src/ngircd/log.c

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/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2012 Alexander Barton (alex@barton.de)
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*
* 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* Please read the file COPYING, README and AUTHORS for more information.
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*/
#include "portab.h"
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/**
* @file
* Logging functions
*/
#include "imp.h"
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#include <assert.h>
#include <errno.h>
#ifdef PROTOTYPES
# include <stdarg.h>
#else
# include <varargs.h>
#endif
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#include <stdio.h>
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#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef SYSLOG
#include <syslog.h>
#endif
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#include "ngircd.h"
#include "defines.h"
#include "conn.h"
#include "channel.h"
#include "irc-write.h"
#include "conf.h"
#include "exp.h"
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#include "log.h"
static bool Is_Daemon;
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static void
Log_Message(int Level, const char *msg)
{
if (!Is_Daemon) {
/* log to console */
fprintf(stdout, "[%ld:%d %4ld] %s\n", (long)getpid(), Level,
(long)time(NULL) - NGIRCd_Start, msg);
fflush(stdout);
}
#ifdef SYSLOG
else {
syslog(Level, "%s", msg);
}
#endif
}
/**
* Initialitze logging.
* This function is called before the configuration file is read in.
*
* @param Daemon_Mode Set to true if ngIRCd is running as daemon.
*/
GLOBAL void
Log_Init(bool Daemon_Mode)
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{
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Is_Daemon = Daemon_Mode;
#ifdef SYSLOG
#ifndef LOG_CONS /* Kludge: mips-dec-ultrix4.5 has no LOG_CONS */
#define LOG_CONS 0
#endif
openlog(PACKAGE_NAME, LOG_CONS|LOG_PID, Conf_SyslogFacility);
#endif
Log(LOG_NOTICE, "%s started.", NGIRCd_Version);
} /* Log_Init */
/**
* Re-init logging after reading the configuration file.
*/
GLOBAL void
Log_ReInit(void)
{
#ifdef SYSLOG
#ifndef LOG_CONS /* Kludge: mips-dec-ultrix4.5 has no LOG_CONS */
#define LOG_CONS 0
#endif
closelog();
openlog(PACKAGE_NAME, LOG_CONS|LOG_PID, Conf_SyslogFacility);
#endif
Log(LOG_NOTICE, "%s started.", NGIRCd_Version);
}
GLOBAL void
Log_Exit( void )
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{
Log(LOG_NOTICE, "%s done%s, served %lu connections.", PACKAGE_NAME,
NGIRCd_SignalRestart ? " (restarting)" : "", Conn_CountAccepted());
#ifdef SYSLOG
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closelog();
#endif
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} /* Log_Exit */
/**
* Log function for debug messages.
* This function is only functional when the program is compiled with debug
* code enabled; otherwise it is an empty function which the compiler will
* hopefully mangle down to "nothing" (see log.h). Therefore you should use
* LogDebug(...) in favor to Log(LOG_DEBUG, ...).
* @param Format Format string like printf().
* @param ... Further arguments.
*/
#ifdef DEBUG
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# ifdef PROTOTYPES
GLOBAL void
LogDebug( const char *Format, ... )
# else
GLOBAL void
LogDebug( Format, va_alist )
const char *Format;
va_dcl
# endif /* PROTOTYPES */
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{
char msg[MAX_LOG_MSG_LEN];
va_list ap;
if (!NGIRCd_Debug) return;
#ifdef PROTOTYPES
va_start( ap, Format );
#else
va_start( ap );
#endif
vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
va_end( ap );
Log(LOG_DEBUG, "%s", msg);
}
#endif /* DEBUG */
/**
* Logging function of ngIRCd.
* This function logs messages to the console and/or syslog, whichever is
* suitable for the mode ngIRCd is running in (daemon vs. non-daemon).
* If LOG_snotice is set, the log messages goes to all user with the mode +s
* set and the local &SERVER channel, too.
* Please note: you sould use LogDebug(...) for debug messages!
* @param Level syslog level (LOG_xxx)
* @param Format Format string like printf().
* @param ... Further arguments.
*/
#ifdef PROTOTYPES
GLOBAL void
Log( int Level, const char *Format, ... )
#else
GLOBAL void
Log( Level, Format, va_alist )
int Level;
const char *Format;
va_dcl
#endif
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{
char msg[MAX_LOG_MSG_LEN];
bool snotice;
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va_list ap;
assert( Format != NULL );
if( Level & LOG_snotice )
{
/* Notice an User mit "s" Mode */
snotice = true;
Level &= ~LOG_snotice;
}
else snotice = false;
#ifdef DEBUG
if(( Level == LOG_DEBUG ) && ( ! NGIRCd_Debug )) return;
#else
if( Level == LOG_DEBUG ) return;
#endif
#ifdef PROTOTYPES
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va_start( ap, Format );
#else
va_start( ap );
#endif
vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
va_end( ap );
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Log_Message(Level, msg);
if (snotice) {
/* Send NOTICE to all local users with mode +s and to the
* local &SERVER channel */
Log_ServerNotice('s', "%s", msg);
Channel_LogServer(msg);
}
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} /* Log */
GLOBAL void
Log_Init_Subprocess(char UNUSED *Name)
{
#ifdef SYSLOG
openlog(PACKAGE_NAME, LOG_CONS|LOG_PID, Conf_SyslogFacility);
#endif
#ifdef DEBUG
Log_Subprocess(LOG_DEBUG, "%s sub-process starting, PID %ld.",
Name, (long)getpid());
#endif
}
GLOBAL void
Log_Exit_Subprocess(char UNUSED *Name)
{
#ifdef DEBUG
Log_Subprocess(LOG_DEBUG, "%s sub-process %ld done.",
Name, (long)getpid());
#endif
#ifdef SYSLOG
closelog( );
#endif
}
#ifdef PROTOTYPES
GLOBAL void
Log_Subprocess(const int Level, const char *Format, ...)
#else
GLOBAL void
Log_Subprocess(Level, Format, va_alist)
const int Level;
const char *Format;
va_dcl
#endif
{
char msg[MAX_LOG_MSG_LEN];
va_list ap;
assert(Format != NULL);
#ifdef DEBUG
if ((Level == LOG_DEBUG) && (!NGIRCd_Debug))
return;
#else
if (Level == LOG_DEBUG)
return;
#endif
#ifdef PROTOTYPES
va_start(ap, Format);
#else
va_start(ap);
#endif
vsnprintf(msg, MAX_LOG_MSG_LEN, Format, ap);
va_end(ap);
Log_Message(Level, msg);
}
/**
* Send a log message to all local users flagged with the given user mode.
* @param UserMode User mode which the target user must have set,
* @param Format The format string.
*/
#ifdef PROTOTYPES
GLOBAL void
Log_ServerNotice(const char UserMode, const char *Format, ... )
#else
GLOBAL void
Log_ServerNotice(UserMode, Format, va_alist)
const char UserMode;
const char *Format;
va_dcl
#endif
{
CLIENT *c;
char msg[MAX_LOG_MSG_LEN];
va_list ap;
assert(Format != NULL);
#ifdef PROTOTYPES
va_start(ap, Format);
#else
va_start(ap);
#endif
vsnprintf(msg, MAX_LOG_MSG_LEN, Format, ap);
va_end(ap);
for(c=Client_First(); c != NULL; c=Client_Next(c)) {
if (Client_Conn(c) > NONE && Client_HasMode(c, UserMode))
IRC_WriteStrClient(c, "NOTICE %s :%s%s", Client_ID(c),
NOTICE_TXTPREFIX, msg);
}
} /* Log_ServerNotice */
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/* -eof- */