/*
**
** Copyright (c) 2002,2003 Dave McMurtrie
** Copyright (c) 2004 Martin Blapp
**
** This file is part of pop3proxy, a descendant of Dave McMurtrie's pop3proxy.
**
** pop3proxy 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.
**
** pop3proxy is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with pop3proxy; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**
**
** Facility:
**
** logging.c
**
** Abstract:
**
** Routines to allow syslog levels and facilities to be configurable.
**
** Authors:
**
** Dave McMurtrie <davemcmurtrie@hotmail.com>
**
** RCS:
**
** $Source: /afs/pitt.edu/usr12/dgm/work/IMAP_Proxy/src/RCS/logging.c,v $
** $Id: logging.c,v 1.2 2003/05/20 19:01:49 dgm Exp $
**
** Modification History:
**
** $Log: logging.c,v $
** Revision 1.2 2003/05/20 19:01:49 dgm
** Comment changes only.
**
** Revision 1.1 2003/04/16 12:14:31 dgm
** Initial revision
**
**
*/
#include <syslog.h>
#include "pop3proxy.h"
#define _REENTRANT
#define NUM_OF_FACILITIES LOG_NFACILITIES
#define MAX_FACILITY_STRINGLEN 64
#define NUM_OF_PRIORITIES 9
#define MAX_PRIORITY_STRINGLEN 64
struct SyslogFacilityMap_Struct
{
char FacilityString[ MAX_FACILITY_STRINGLEN ];
int FacilityValue;
};
struct SyslogPriorityMap_Struct
{
char PriorityString[ MAX_PRIORITY_STRINGLEN ];
int PriorityValue;
};
struct SyslogFacilityMap_Struct SyslogFacilityTable[ NUM_OF_FACILITIES ];
struct SyslogPriorityMap_Struct SyslogPriorityTable[ NUM_OF_PRIORITIES ];
/*
* macro to populate the facility map.
*/
#define ADD_TO_FACILITY_MAP( FACILITY, INDEX ) \
if ( INDEX >= NUM_OF_FACILITIES ) \
{ \
syslog( LOG_ERR, "Syslog facility map overflow! Exiting." ); \
exit( 1 ); \
} \
strncpy( SyslogFacilityTable[ INDEX ].FacilityString, #FACILITY, MAX_FACILITY_STRINGLEN - 1 ); \
SyslogFacilityTable[ INDEX ].FacilityValue = FACILITY; \
INDEX++;
/*
* macro to populate the above priority map.
*/
#define ADD_TO_PRIORITY_MAP( PRIORITY, INDEX ) \
if ( INDEX >= NUM_OF_PRIORITIES ) \
{ \
syslog( LOG_ERR, "Syslog priority map overflow! Exiting." ); \
exit( 1 ); \
} \
strncpy( SyslogPriorityTable[ INDEX ].PriorityString, #PRIORITY, MAX_PRIORITY_STRINGLEN - 1 ); \
SyslogPriorityTable[ INDEX ].PriorityValue = PRIORITY; \
INDEX++;
/*
* External globals
*/
extern ProxyConfig_Struct PC_Struct;
/*++
* Function: SetLogOptions
*
* Purpose: Set the syslog logging facility and priority mask based o
* options from the proxy configfile.
*
* Parameters: void
*
* Returns: nada. Exits on any failure.
*
* Authors: Dave McMurtrie <davemcmurtrie@hotmail.com>
*
* Notes: If nothing is set in the configfile, it will default
* to LOG_MAIL facility and no logmask.
* This function relies on the fact that
* SetConfigOptions() has already been called and the global
* ProxyConfig_Struct "PC_Struct" is populated.
*--
*/
extern void SetLogOptions( void )
{
unsigned int index;
int facility;
int prioritymask;
index = 0;
facility = -1;
prioritymask = -1;
ADD_TO_FACILITY_MAP( LOG_USER, index );
ADD_TO_FACILITY_MAP( LOG_MAIL, index );
ADD_TO_FACILITY_MAP( LOG_DAEMON, index );
ADD_TO_FACILITY_MAP( LOG_AUTH, index );
ADD_TO_FACILITY_MAP( LOG_LPR, index );
ADD_TO_FACILITY_MAP( LOG_NEWS, index );
ADD_TO_FACILITY_MAP( LOG_UUCP, index );
ADD_TO_FACILITY_MAP( LOG_CRON, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL0, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL1, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL2, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL3, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL4, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL5, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL6, index );
ADD_TO_FACILITY_MAP( LOG_LOCAL7, index );
if ( index >= NUM_OF_FACILITIES )
{
syslog( LOG_ERR, "Syslog facility map overflow! Exiting." );
exit( 1 );
}
SyslogFacilityTable[ index ].FacilityString[0] = '\0';
index = 0;
ADD_TO_PRIORITY_MAP( LOG_EMERG, index );
ADD_TO_PRIORITY_MAP( LOG_ALERT, index );
ADD_TO_PRIORITY_MAP( LOG_CRIT, index );
ADD_TO_PRIORITY_MAP( LOG_ERR, index );
ADD_TO_PRIORITY_MAP( LOG_WARNING, index );
ADD_TO_PRIORITY_MAP( LOG_NOTICE, index );
ADD_TO_PRIORITY_MAP( LOG_INFO, index );
ADD_TO_PRIORITY_MAP( LOG_DEBUG, index );
if ( index >= NUM_OF_PRIORITIES )
{
syslog( LOG_ERR, "Syslog priority map overflow! Exiting." );
exit( 1 );
}
SyslogPriorityTable[ index ].PriorityString[0] = '\0';
/*
* First set the logging facility.
*/
if ( !PC_Struct.syslog_facility )
{
syslog( LOG_INFO, "syslog_facility not specified. Defaulting to LOG_MAIL." );
facility = LOG_MAIL;
}
else
{
for ( index = 0; index < NUM_OF_FACILITIES; index++ )
{
if ( SyslogFacilityTable[ index ].FacilityString[0] == '\0' )
break;
if ( !strcmp( SyslogFacilityTable[ index ].FacilityString, PC_Struct.syslog_facility ) )
{
facility = SyslogFacilityTable[ index ].FacilityValue;
#if 0
syslog( LOG_INFO, "Using syslog facility '%s' for logging.", PC_Struct.syslog_facility );
#endif
break;
}
}
}
if ( facility == -1 )
{
facility = LOG_MAIL;
syslog( LOG_INFO, "Unknown syslog facility '%s' specified. Defaulting to LOG_MAIL.", PC_Struct.syslog_facility );
}
openlog( PGM, LOG_PID, facility );
/*
* Now do essentially the same for the priority mask
*/
if ( !PC_Struct.syslog_prioritymask )
{
#if 0
syslog( LOG_INFO, "No syslog priority mask specified." );
#endif
return;
}
for ( index = 0; index < NUM_OF_PRIORITIES; index++ )
{
if ( SyslogPriorityTable[ index ].PriorityString[0] == '\0' )
break;
if ( !strcmp( SyslogPriorityTable[ index ].PriorityString, PC_Struct.syslog_prioritymask ) )
{
prioritymask = SyslogPriorityTable[ index ].PriorityValue;
syslog( LOG_INFO, "Masking syslog priority up to %s.", SyslogPriorityTable[ index ].PriorityString );
break;
}
}
if ( prioritymask == -1 )
{
syslog( LOG_INFO, "Unknown syslog priority mask '%s' specified. Not masking.", PC_Struct.syslog_prioritymask );
return;
}
setlogmask( LOG_UPTO( prioritymask ) );
return;
}
/*
* _________
* / |
* / |
* / ______|
* / / ________
* | | | /
* | | |_____/
* | | ______
* | | | \
* | | |______\
* \ \_______
* \ |
* \ |
* \_________|
*/
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