log.h

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/*
  Copyright (c) Mircea Neacsu (2014-2025) Licensed under MIT License.
  This is part of MLIB project. See LICENSE file for full license terms.
*/

 
#pragma once
#if __has_include("defs.h")
#include "defs.h"
#endif
 
#include "safe_winsock.h"
 
// facility codes 0 to 24 are defined in syslog.h
#define LOG_USER (1 << 3) 

#define LOG_EMERG   0 
#define LOG_ALERT   1 
#define LOG_CRIT    2 
#define LOG_ERR     3 
#define LOG_WARNING 4 
#define LOG_NOTICE  5 
#define LOG_INFO    6 
#define LOG_DEBUG   7 

#define LOG_PRIMASK   0x7                      
#define LOG_FACMASK   0x03f8                   
#define LOG_MASK(pri) (1 << (pri))             
#define LOG_UPTO(pri) ((1 << ((pri) + 1)) - 1) 
#define LOG_MAKEPRI(fac, pri) ((fac) | (pri))

/*
 * LOG_ODELAY no longer does anything.
 * LOG_NDELAY is the inverse of what it used to be.
 */
#define LOG_PID    0x01 /* log the pid with each message */
#define LOG_CONS   0x02 /* log on the console if errors in sending */
#define LOG_ODELAY 0x04 /* delay open until first syslog() (default) */
#define LOG_NDELAY 0x08 /* don't delay open */
#define LOG_NOWAIT 0x10 /* don't wait for console forks: DEPRECATED */
#define LOG_PERROR 0x20 /* log to stderr as well */
 
// mlib stuff
#define LOGOPT_PID      0x01 
#define LOGOPT_OUTDEBUG 0x02 
 
#define LOGOPT_NOUDP 0x40 
#define LOGOPT_FILE  0x80 
 
#define LOG_PORT 514 /* port number for logger (same as SYSLOG service) */
 
#ifdef __cplusplus
extern "C"
{
#endif

  void closelog (void);

  void openlog (const char* ident, int option = 0, int facility = LOG_USER);

  int setlogmask (int mask);

  int setlogopt (int opt);

  void syslog (int facility_priority, const char* fmt, ...);

  bool syslog_debug (const char* fmt, ...);

  extern int log_defaultopt;

  extern char log_servhostname[_MAX_PATH];

  extern char log_fname[_MAX_PATH];
 
#ifdef __cplusplus
}
#endif