[openssh.git] / log-server.c

/*

log-server.c

Author: Tatu Ylonen <ylo@cs.hut.fi>

Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                   All rights reserved

Created: Mon Mar 20 21:19:30 1995 ylo

Server-side versions of debug(), log(), etc.  These normally send the output
to the system log.

*/

#include "includes.h"
RCSID("$Id$");

#include <syslog.h>
#include "packet.h"
#include "xmalloc.h"
#include "ssh.h"

static LogLevel log_level = SYSLOG_LEVEL_INFO;
static int log_on_stderr = 0;

/* Initialize the log.
     av0	program name (should be argv[0])
     on_stderr	print also on stderr
     level	logging level
     */

void log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
{
  int log_facility;
  
  switch (level)
    {
    case SYSLOG_LEVEL_QUIET:
    case SYSLOG_LEVEL_ERROR:
    case SYSLOG_LEVEL_FATAL:
    case SYSLOG_LEVEL_INFO:
    case SYSLOG_LEVEL_CHAT:
    case SYSLOG_LEVEL_DEBUG:
      log_level = level;
      break;
    default:
      fprintf(stderr, "Unrecognized internal syslog level code %d\n",
	      (int)level);
      exit(1);
    }

  switch (facility)
    {
    case SYSLOG_FACILITY_DAEMON:
      log_facility = LOG_DAEMON;
      break;
    case SYSLOG_FACILITY_USER:
      log_facility = LOG_USER;
      break;
    case SYSLOG_FACILITY_AUTH:
      log_facility = LOG_AUTH;
      break;
    case SYSLOG_FACILITY_LOCAL0:
      log_facility = LOG_LOCAL0;
      break;
    case SYSLOG_FACILITY_LOCAL1:
      log_facility = LOG_LOCAL1;
      break;
    case SYSLOG_FACILITY_LOCAL2:
      log_facility = LOG_LOCAL2;
      break;
    case SYSLOG_FACILITY_LOCAL3:
      log_facility = LOG_LOCAL3;
      break;
    case SYSLOG_FACILITY_LOCAL4:
      log_facility = LOG_LOCAL4;
      break;
    case SYSLOG_FACILITY_LOCAL5:
      log_facility = LOG_LOCAL5;
      break;
    case SYSLOG_FACILITY_LOCAL6:
      log_facility = LOG_LOCAL6;
      break;
    case SYSLOG_FACILITY_LOCAL7:
      log_facility = LOG_LOCAL7;
      break;
    default:
      fprintf(stderr, "Unrecognized internal syslog facility code %d\n",
	      (int)facility);
      exit(1);
    }

  log_on_stderr = on_stderr;
  closelog(); /* Close any previous log. */
  openlog(av0, LOG_PID, log_facility);
}

#define MSGBUFSIZE 1024

void
do_log(LogLevel level, const char *fmt, va_list args)
{
  char msgbuf[MSGBUFSIZE];
  char fmtbuf[MSGBUFSIZE];
  char *txt = NULL;
  int pri = LOG_INFO;

  if (level > log_level)
    return;
  switch (level)
    {
    case SYSLOG_LEVEL_ERROR:
      txt = "error";
      pri = LOG_ERR;
      break;
    case SYSLOG_LEVEL_FATAL:
      txt = "fatal";
      pri = LOG_ERR;
      break;
    case SYSLOG_LEVEL_INFO:
      pri = LOG_INFO;
      break;
    case SYSLOG_LEVEL_CHAT:
      pri = LOG_INFO;
      break;
    case SYSLOG_LEVEL_DEBUG:
      txt = "debug";
      pri = LOG_DEBUG;
      break;
    default:
      txt = "internal error";
      pri = LOG_ERR;
      break;
    }

  if (txt != NULL) {
    snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
    vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
  }else{
    vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
  }
  if (log_on_stderr)
    fprintf(stderr, "%s\n", msgbuf);
  syslog(pri, "%.500s", msgbuf);
}
Commit	Line	Data
8efc0c15	1	/*
	2
	3	log-server.c
	4
	5	Author: Tatu Ylonen <ylo@cs.hut.fi>
	6
	7	Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
	8	All rights reserved
	9
	10	Created: Mon Mar 20 21:19:30 1995 ylo
	11
	12	Server-side versions of debug(), log(), etc. These normally send the output
	13	to the system log.
	14
	15	*/
	16
	17	#include "includes.h"
	18	RCSID("$Id$");
	19
	20	#include <syslog.h>
	21	#include "packet.h"
	22	#include "xmalloc.h"
	23	#include "ssh.h"
	24
6a17f9c2	25	static LogLevel log_level = SYSLOG_LEVEL_INFO;
8efc0c15	26	static int log_on_stderr = 0;
	27
	28	/* Initialize the log.
	29	av0 program name (should be argv[0])
	30	on_stderr print also on stderr
6a17f9c2	31	level logging level
8efc0c15	32	*/
8efc0c15	33
6a17f9c2	34	void log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
8efc0c15	35	{
	36	int log_facility;
	37
6a17f9c2	38	switch (level)
	39	{
	40	case SYSLOG_LEVEL_QUIET:
	41	case SYSLOG_LEVEL_ERROR:
	42	case SYSLOG_LEVEL_FATAL:
	43	case SYSLOG_LEVEL_INFO:
	44	case SYSLOG_LEVEL_CHAT:
	45	case SYSLOG_LEVEL_DEBUG:
	46	log_level = level;
	47	break;
	48	default:
	49	fprintf(stderr, "Unrecognized internal syslog level code %d\n",
	50	(int)level);
	51	exit(1);
	52	}
	53
8efc0c15	54	switch (facility)
	55	{
	56	case SYSLOG_FACILITY_DAEMON:
	57	log_facility = LOG_DAEMON;
	58	break;
	59	case SYSLOG_FACILITY_USER:
	60	log_facility = LOG_USER;
	61	break;
	62	case SYSLOG_FACILITY_AUTH:
	63	log_facility = LOG_AUTH;
	64	break;
	65	case SYSLOG_FACILITY_LOCAL0:
	66	log_facility = LOG_LOCAL0;
	67	break;
	68	case SYSLOG_FACILITY_LOCAL1:
	69	log_facility = LOG_LOCAL1;
	70	break;
	71	case SYSLOG_FACILITY_LOCAL2:
	72	log_facility = LOG_LOCAL2;
	73	break;
	74	case SYSLOG_FACILITY_LOCAL3:
	75	log_facility = LOG_LOCAL3;
	76	break;
	77	case SYSLOG_FACILITY_LOCAL4:
	78	log_facility = LOG_LOCAL4;
	79	break;
	80	case SYSLOG_FACILITY_LOCAL5:
	81	log_facility = LOG_LOCAL5;
	82	break;
	83	case SYSLOG_FACILITY_LOCAL6:
	84	log_facility = LOG_LOCAL6;
	85	break;
	86	case SYSLOG_FACILITY_LOCAL7:
	87	log_facility = LOG_LOCAL7;
	88	break;
	89	default:
	90	fprintf(stderr, "Unrecognized internal syslog facility code %d\n",
	91	(int)facility);
	92	exit(1);
	93	}
	94
8efc0c15	95	log_on_stderr = on_stderr;
	96	closelog(); /* Close any previous log. */
	97	openlog(av0, LOG_PID, log_facility);
	98	}
	99
	100	#define MSGBUFSIZE 1024
	101
6a17f9c2	102	void
6a17f9c2	103	do_log(LogLevel level, const char *fmt, va_list args)
8efc0c15	104	{
6a17f9c2	105	char msgbuf[MSGBUFSIZE];
	106	char fmtbuf[MSGBUFSIZE];
	107	char *txt = NULL;
	108	int pri = LOG_INFO;
8efc0c15	109
6a17f9c2	110	if (level > log_level)
8efc0c15	111	return;
6a17f9c2	112	switch (level)
8efc0c15	113	{
6a17f9c2	114	case SYSLOG_LEVEL_ERROR:
	115	txt = "error";
	116	pri = LOG_ERR;
	117	break;
	118	case SYSLOG_LEVEL_FATAL:
	119	txt = "fatal";
	120	pri = LOG_ERR;
	121	break;
	122	case SYSLOG_LEVEL_INFO:
	123	pri = LOG_INFO;
	124	break;
	125	case SYSLOG_LEVEL_CHAT:
	126	pri = LOG_INFO;
	127	break;
	128	case SYSLOG_LEVEL_DEBUG:
	129	txt = "debug";
	130	pri = LOG_DEBUG;
	131	break;
	132	default:
	133	txt = "internal error";
	134	pri = LOG_ERR;
	135	break;
8efc0c15	136	}
8efc0c15	137
6a17f9c2	138	if (txt != NULL) {
	139	snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
	140	vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
	141	}else{
	142	vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
	143	}
8efc0c15	144	if (log_on_stderr)
6a17f9c2	145	fprintf(stderr, "%s\n", msgbuf);
6a17f9c2	146	syslog(pri, "%.500s", msgbuf);
8efc0c15	147	}