[gssapi-openssh.git] / openssh / log.c

/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 */
/*
 * Copyright (c) 2000 Markus Friedl.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "includes.h"
RCSID("$OpenBSD: log.c,v 1.29 2003/09/23 20:17:11 markus Exp $");

#include "log.h"
#include "xmalloc.h"

#include <syslog.h>
#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
# include <vis.h>
#endif

static LogLevel log_level = SYSLOG_LEVEL_INFO;
static int log_on_stderr = 1;
static int log_facility = LOG_AUTH;
static char *argv0;

extern char *__progname;

#define LOG_SYSLOG_VIS	(VIS_CSTYLE|VIS_NL|VIS_TAB|VIS_OCTAL)
#define LOG_STDERR_VIS	(VIS_SAFE|VIS_OCTAL)

/* textual representation of log-facilities/levels */

static struct {
	const char *name;
	SyslogFacility val;
} log_facilities[] = {
	{ "DAEMON",	SYSLOG_FACILITY_DAEMON },
	{ "USER",	SYSLOG_FACILITY_USER },
	{ "AUTH",	SYSLOG_FACILITY_AUTH },
#ifdef LOG_AUTHPRIV
	{ "AUTHPRIV",	SYSLOG_FACILITY_AUTHPRIV },
#endif
	{ "LOCAL0",	SYSLOG_FACILITY_LOCAL0 },
	{ "LOCAL1",	SYSLOG_FACILITY_LOCAL1 },
	{ "LOCAL2",	SYSLOG_FACILITY_LOCAL2 },
	{ "LOCAL3",	SYSLOG_FACILITY_LOCAL3 },
	{ "LOCAL4",	SYSLOG_FACILITY_LOCAL4 },
	{ "LOCAL5",	SYSLOG_FACILITY_LOCAL5 },
	{ "LOCAL6",	SYSLOG_FACILITY_LOCAL6 },
	{ "LOCAL7",	SYSLOG_FACILITY_LOCAL7 },
	{ NULL,		SYSLOG_FACILITY_NOT_SET }
};

static struct {
	const char *name;
	LogLevel val;
} log_levels[] =
{
	{ "QUIET",	SYSLOG_LEVEL_QUIET },
	{ "FATAL",	SYSLOG_LEVEL_FATAL },
	{ "ERROR",	SYSLOG_LEVEL_ERROR },
	{ "INFO",	SYSLOG_LEVEL_INFO },
	{ "VERBOSE",	SYSLOG_LEVEL_VERBOSE },
	{ "DEBUG",	SYSLOG_LEVEL_DEBUG1 },
	{ "DEBUG1",	SYSLOG_LEVEL_DEBUG1 },
	{ "DEBUG2",	SYSLOG_LEVEL_DEBUG2 },
	{ "DEBUG3",	SYSLOG_LEVEL_DEBUG3 },
	{ NULL,		SYSLOG_LEVEL_NOT_SET }
};

SyslogFacility
log_facility_number(char *name)
{
	int i;

	if (name != NULL)
		for (i = 0; log_facilities[i].name; i++)
			if (strcasecmp(log_facilities[i].name, name) == 0)
				return log_facilities[i].val;
	return SYSLOG_FACILITY_NOT_SET;
}

LogLevel
log_level_number(char *name)
{
	int i;

	if (name != NULL)
		for (i = 0; log_levels[i].name; i++)
			if (strcasecmp(log_levels[i].name, name) == 0)
				return log_levels[i].val;
	return SYSLOG_LEVEL_NOT_SET;
}

/* Error messages that should be logged. */

void
error(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_ERROR, fmt, args);
	va_end(args);
}

/* Log this message (information that usually should go to the log). */

void
logit(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_INFO, fmt, args);
	va_end(args);
}

/* More detailed messages (information that does not need to go to the log). */

void
verbose(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_VERBOSE, fmt, args);
	va_end(args);
}

/* Debugging messages that should not be logged during normal operation. */

void
debug(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_DEBUG1, fmt, args);
	va_end(args);
}

void
debug2(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_DEBUG2, fmt, args);
	va_end(args);
}

void
debug3(const char *fmt,...)
{
	va_list args;

	va_start(args, fmt);
	do_log(SYSLOG_LEVEL_DEBUG3, fmt, args);
	va_end(args);
}

/*
 * Initialize the log.
 */

void
log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
{
	argv0 = av0;

	switch (level) {
	case SYSLOG_LEVEL_QUIET:
	case SYSLOG_LEVEL_FATAL:
	case SYSLOG_LEVEL_ERROR:
	case SYSLOG_LEVEL_INFO:
	case SYSLOG_LEVEL_VERBOSE:
	case SYSLOG_LEVEL_DEBUG1:
	case SYSLOG_LEVEL_DEBUG2:
	case SYSLOG_LEVEL_DEBUG3:
		log_level = level;
		break;
	default:
		fprintf(stderr, "Unrecognized internal syslog level code %d\n",
		    (int) level);
		exit(1);
	}

	log_on_stderr = on_stderr;
	if (on_stderr)
		return;

	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;
#ifdef LOG_AUTHPRIV
	case SYSLOG_FACILITY_AUTHPRIV:
		log_facility = LOG_AUTHPRIV;
		break;
#endif
	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);
	}
}

#define MSGBUFSIZ 1024

void
do_log(LogLevel level, const char *fmt, va_list args)
{
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
	struct syslog_data sdata = SYSLOG_DATA_INIT;
#endif
	char msgbuf[MSGBUFSIZ];
	char fmtbuf[MSGBUFSIZ];
	char *txt = NULL;
	int pri = LOG_INFO;

	if (level > log_level)
		return;

	switch (level) {
	case SYSLOG_LEVEL_FATAL:
		if (!log_on_stderr)
			txt = "fatal";
		pri = LOG_CRIT;
		break;
	case SYSLOG_LEVEL_ERROR:
		if (!log_on_stderr)
			txt = "error";
		pri = LOG_ERR;
		break;
	case SYSLOG_LEVEL_INFO:
		pri = LOG_INFO;
		break;
	case SYSLOG_LEVEL_VERBOSE:
		pri = LOG_INFO;
		break;
	case SYSLOG_LEVEL_DEBUG1:
		txt = "debug1";
		pri = LOG_DEBUG;
		break;
	case SYSLOG_LEVEL_DEBUG2:
		txt = "debug2";
		pri = LOG_DEBUG;
		break;
	case SYSLOG_LEVEL_DEBUG3:
		txt = "debug3";
		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);
	}
	strnvis(fmtbuf, msgbuf, sizeof(fmtbuf),
	    log_on_stderr ? LOG_STDERR_VIS : LOG_SYSLOG_VIS);
	if (log_on_stderr) {
		snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf);
		write(STDERR_FILENO, msgbuf, strlen(msgbuf));
	} else {
#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
		openlog_r(argv0 ? argv0 : __progname, LOG_PID, log_facility, &sdata);
		syslog_r(pri, &sdata, "%.500s", fmtbuf);
		closelog_r(&sdata);
#else
		openlog(argv0 ? argv0 : __progname, LOG_PID, log_facility);
		syslog(pri, "%.500s", fmtbuf);
		closelog();
#endif
	}
}
Commit	Line	Data
3c0ef626	1	/*
	2	* Author: Tatu Ylonen <ylo@cs.hut.fi>
	3	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
	4	* All rights reserved
	5	*
	6	* As far as I am concerned, the code I have written for this software
	7	* can be used freely for any purpose. Any derived versions of this
	8	* software must be clearly marked as such, and if the derived work is
	9	* incompatible with the protocol description in the RFC file, it must be
	10	* called by a name other than "ssh" or "Secure Shell".
	11	*/
	12	/*
	13	* Copyright (c) 2000 Markus Friedl. All rights reserved.
	14	*
	15	* Redistribution and use in source and binary forms, with or without
	16	* modification, are permitted provided that the following conditions
	17	* are met:
	18	* 1. Redistributions of source code must retain the above copyright
	19	* notice, this list of conditions and the following disclaimer.
	20	* 2. Redistributions in binary form must reproduce the above copyright
	21	* notice, this list of conditions and the following disclaimer in the
	22	* documentation and/or other materials provided with the distribution.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	25	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	26	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	27	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	28	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	29	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	30	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	31	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	32	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	33	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	34	*/
	35
	36	#include "includes.h"
cdd66111	37	RCSID("$OpenBSD: log.c,v 1.29 2003/09/23 20:17:11 markus Exp $");
3c0ef626	38
	39	#include "log.h"
	40	#include "xmalloc.h"
	41
	42	#include <syslog.h>
acc3d05e	43	#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
	44	# include <vis.h>
	45	#endif
3c0ef626	46
	47	static LogLevel log_level = SYSLOG_LEVEL_INFO;
	48	static int log_on_stderr = 1;
	49	static int log_facility = LOG_AUTH;
	50	static char *argv0;
	51
	52	extern char *__progname;
	53
c9f39d2c	54	#define LOG_SYSLOG_VIS (VIS_CSTYLE\|VIS_NL\|VIS_TAB\|VIS_OCTAL)
	55	#define LOG_STDERR_VIS (VIS_SAFE\|VIS_OCTAL)
	56
3c0ef626	57	/* textual representation of log-facilities/levels */
	58
	59	static struct {
	60	const char *name;
	61	SyslogFacility val;
	62	} log_facilities[] = {
	63	{ "DAEMON", SYSLOG_FACILITY_DAEMON },
	64	{ "USER", SYSLOG_FACILITY_USER },
	65	{ "AUTH", SYSLOG_FACILITY_AUTH },
	66	#ifdef LOG_AUTHPRIV
	67	{ "AUTHPRIV", SYSLOG_FACILITY_AUTHPRIV },
	68	#endif
	69	{ "LOCAL0", SYSLOG_FACILITY_LOCAL0 },
	70	{ "LOCAL1", SYSLOG_FACILITY_LOCAL1 },
	71	{ "LOCAL2", SYSLOG_FACILITY_LOCAL2 },
	72	{ "LOCAL3", SYSLOG_FACILITY_LOCAL3 },
	73	{ "LOCAL4", SYSLOG_FACILITY_LOCAL4 },
	74	{ "LOCAL5", SYSLOG_FACILITY_LOCAL5 },
	75	{ "LOCAL6", SYSLOG_FACILITY_LOCAL6 },
	76	{ "LOCAL7", SYSLOG_FACILITY_LOCAL7 },
e9a17296	77	{ NULL, SYSLOG_FACILITY_NOT_SET }
3c0ef626	78	};
	79
	80	static struct {
	81	const char *name;
	82	LogLevel val;
	83	} log_levels[] =
	84	{
	85	{ "QUIET", SYSLOG_LEVEL_QUIET },
	86	{ "FATAL", SYSLOG_LEVEL_FATAL },
	87	{ "ERROR", SYSLOG_LEVEL_ERROR },
	88	{ "INFO", SYSLOG_LEVEL_INFO },
	89	{ "VERBOSE", SYSLOG_LEVEL_VERBOSE },
	90	{ "DEBUG", SYSLOG_LEVEL_DEBUG1 },
	91	{ "DEBUG1", SYSLOG_LEVEL_DEBUG1 },
	92	{ "DEBUG2", SYSLOG_LEVEL_DEBUG2 },
	93	{ "DEBUG3", SYSLOG_LEVEL_DEBUG3 },
e9a17296	94	{ NULL, SYSLOG_LEVEL_NOT_SET }
3c0ef626	95	};
3c0ef626	96
3c0ef626	97	SyslogFacility
	98	log_facility_number(char *name)
	99	{
	100	int i;
41b2f314	101
3c0ef626	102	if (name != NULL)
	103	for (i = 0; log_facilities[i].name; i++)
	104	if (strcasecmp(log_facilities[i].name, name) == 0)
	105	return log_facilities[i].val;
e9a17296	106	return SYSLOG_FACILITY_NOT_SET;
3c0ef626	107	}
	108
	109	LogLevel
	110	log_level_number(char *name)
	111	{
	112	int i;
41b2f314	113
3c0ef626	114	if (name != NULL)
	115	for (i = 0; log_levels[i].name; i++)
	116	if (strcasecmp(log_levels[i].name, name) == 0)
	117	return log_levels[i].val;
e9a17296	118	return SYSLOG_LEVEL_NOT_SET;
3c0ef626	119	}
	120
	121	/* Error messages that should be logged. */
	122
	123	void
	124	error(const char *fmt,...)
	125	{
	126	va_list args;
41b2f314	127
3c0ef626	128	va_start(args, fmt);
	129	do_log(SYSLOG_LEVEL_ERROR, fmt, args);
	130	va_end(args);
	131	}
	132
	133	/* Log this message (information that usually should go to the log). */
	134
	135	void
0fff78ff	136	logit(const char *fmt,...)
3c0ef626	137	{
3c0ef626	138	va_list args;
41b2f314	139
3c0ef626	140	va_start(args, fmt);
	141	do_log(SYSLOG_LEVEL_INFO, fmt, args);
	142	va_end(args);
	143	}
	144
	145	/* More detailed messages (information that does not need to go to the log). */
	146
	147	void
	148	verbose(const char *fmt,...)
	149	{
	150	va_list args;
41b2f314	151
3c0ef626	152	va_start(args, fmt);
	153	do_log(SYSLOG_LEVEL_VERBOSE, fmt, args);
	154	va_end(args);
	155	}
	156
	157	/* Debugging messages that should not be logged during normal operation. */
	158
	159	void
	160	debug(const char *fmt,...)
	161	{
	162	va_list args;
41b2f314	163
3c0ef626	164	va_start(args, fmt);
	165	do_log(SYSLOG_LEVEL_DEBUG1, fmt, args);
	166	va_end(args);
	167	}
	168
	169	void
	170	debug2(const char *fmt,...)
	171	{
	172	va_list args;
41b2f314	173
3c0ef626	174	va_start(args, fmt);
	175	do_log(SYSLOG_LEVEL_DEBUG2, fmt, args);
	176	va_end(args);
	177	}
	178
	179	void
	180	debug3(const char *fmt,...)
	181	{
	182	va_list args;
41b2f314	183
3c0ef626	184	va_start(args, fmt);
	185	do_log(SYSLOG_LEVEL_DEBUG3, fmt, args);
	186	va_end(args);
	187	}
	188
3c0ef626	189	/*
	190	* Initialize the log.
	191	*/
	192
	193	void
	194	log_init(char *av0, LogLevel level, SyslogFacility facility, int on_stderr)
	195	{
	196	argv0 = av0;
	197
	198	switch (level) {
	199	case SYSLOG_LEVEL_QUIET:
	200	case SYSLOG_LEVEL_FATAL:
	201	case SYSLOG_LEVEL_ERROR:
	202	case SYSLOG_LEVEL_INFO:
	203	case SYSLOG_LEVEL_VERBOSE:
	204	case SYSLOG_LEVEL_DEBUG1:
	205	case SYSLOG_LEVEL_DEBUG2:
	206	case SYSLOG_LEVEL_DEBUG3:
	207	log_level = level;
	208	break;
	209	default:
	210	fprintf(stderr, "Unrecognized internal syslog level code %d\n",
	211	(int) level);
	212	exit(1);
	213	}
	214
	215	log_on_stderr = on_stderr;
	216	if (on_stderr)
	217	return;
	218
	219	switch (facility) {
	220	case SYSLOG_FACILITY_DAEMON:
	221	log_facility = LOG_DAEMON;
	222	break;
	223	case SYSLOG_FACILITY_USER:
	224	log_facility = LOG_USER;
	225	break;
	226	case SYSLOG_FACILITY_AUTH:
	227	log_facility = LOG_AUTH;
	228	break;
	229	#ifdef LOG_AUTHPRIV
	230	case SYSLOG_FACILITY_AUTHPRIV:
	231	log_facility = LOG_AUTHPRIV;
	232	break;
	233	#endif
	234	case SYSLOG_FACILITY_LOCAL0:
	235	log_facility = LOG_LOCAL0;
	236	break;
	237	case SYSLOG_FACILITY_LOCAL1:
	238	log_facility = LOG_LOCAL1;
	239	break;
	240	case SYSLOG_FACILITY_LOCAL2:
	241	log_facility = LOG_LOCAL2;
	242	break;
	243	case SYSLOG_FACILITY_LOCAL3:
	244	log_facility = LOG_LOCAL3;
	245	break;
	246	case SYSLOG_FACILITY_LOCAL4:
	247	log_facility = LOG_LOCAL4;
	248	break;
	249	case SYSLOG_FACILITY_LOCAL5:
	250	log_facility = LOG_LOCAL5;
	251	break;
	252	case SYSLOG_FACILITY_LOCAL6:
253	log_facility = LOG_LOCAL6;
254	break;
255	case SYSLOG_FACILITY_LOCAL7:
256	log_facility = LOG_LOCAL7;
257	break;
258	default:
259	fprintf(stderr,
260	"Unrecognized internal syslog facility code %d\n",
261	(int) facility);
262	exit(1);
263	}
264	}
265
266	#define MSGBUFSIZ 1024
267
e9a17296	268	void
3c0ef626	269	do_log(LogLevel level, const char *fmt, va_list args)
3c0ef626	270	{
cdd66111	271	#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
0fff78ff	272	struct syslog_data sdata = SYSLOG_DATA_INIT;
0fff78ff	273	#endif
3c0ef626	274	char msgbuf[MSGBUFSIZ];
	275	char fmtbuf[MSGBUFSIZ];
	276	char *txt = NULL;
	277	int pri = LOG_INFO;
	278
	279	if (level > log_level)
	280	return;
	281
	282	switch (level) {
	283	case SYSLOG_LEVEL_FATAL:
	284	if (!log_on_stderr)
	285	txt = "fatal";
	286	pri = LOG_CRIT;
	287	break;
	288	case SYSLOG_LEVEL_ERROR:
	289	if (!log_on_stderr)
	290	txt = "error";
	291	pri = LOG_ERR;
	292	break;
	293	case SYSLOG_LEVEL_INFO:
	294	pri = LOG_INFO;
	295	break;
	296	case SYSLOG_LEVEL_VERBOSE:
	297	pri = LOG_INFO;
	298	break;
	299	case SYSLOG_LEVEL_DEBUG1:
	300	txt = "debug1";
	301	pri = LOG_DEBUG;
	302	break;
	303	case SYSLOG_LEVEL_DEBUG2:
	304	txt = "debug2";
	305	pri = LOG_DEBUG;
	306	break;
	307	case SYSLOG_LEVEL_DEBUG3:
	308	txt = "debug3";
	309	pri = LOG_DEBUG;
	310	break;
	311	default:
	312	txt = "internal error";
	313	pri = LOG_ERR;
	314	break;
	315	}
	316	if (txt != NULL) {
	317	snprintf(fmtbuf, sizeof(fmtbuf), "%s: %s", txt, fmt);
	318	vsnprintf(msgbuf, sizeof(msgbuf), fmtbuf, args);
	319	} else {
	320	vsnprintf(msgbuf, sizeof(msgbuf), fmt, args);
	321	}
c9f39d2c	322	strnvis(fmtbuf, msgbuf, sizeof(fmtbuf),
c9f39d2c	323	log_on_stderr ? LOG_STDERR_VIS : LOG_SYSLOG_VIS);
3c0ef626	324	if (log_on_stderr) {
0fff78ff	325	snprintf(msgbuf, sizeof msgbuf, "%s\r\n", fmtbuf);
0fff78ff	326	write(STDERR_FILENO, msgbuf, strlen(msgbuf));
3c0ef626	327	} else {
cdd66111	328	#if defined(HAVE_OPENLOG_R) && defined(SYSLOG_DATA_INIT)
0fff78ff	329	openlog_r(argv0 ? argv0 : __progname, LOG_PID, log_facility, &sdata);
	330	syslog_r(pri, &sdata, "%.500s", fmtbuf);
	331	closelog_r(&sdata);
	332	#else
3c0ef626	333	openlog(argv0 ? argv0 : __progname, LOG_PID, log_facility);
6a9b3198	334	syslog(pri, "%.500s", fmtbuf);
3c0ef626	335	closelog();
0fff78ff	336	#endif
3c0ef626	337	}
3c0ef626	338	}