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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/route6d/log.c	Lines:	0	66	0.0 %
Date:	2017-11-13	Branches:	0	18	0.0 %


/*	$OpenBSD: log.c,v 1.4 2017/07/28 13:05:21 florian Exp $	*/

/*
 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <err.h>
#include <errno.h>
#include <netdb.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>

#include "log.h"

static int debug;

static char	*logqueue;

#define LOGQUEUE_SIZE 1024

void	logit(int, const char *, ...);
void	vlog(int pri, const char *fmt, va_list ap);

void
log_init(int n_debug)
{
	extern char	*__progname;

	if (logqueue == NULL) {
		logqueue = calloc(LOGQUEUE_SIZE, 1);
		if (logqueue == NULL)
			err(1, NULL);
	}

	debug = n_debug;

	if (!debug)
		openlog(__progname, LOG_PID | LOG_NDELAY, LOG_DAEMON);

	tzset();
}

void
logit(int pri, const char *fmt, ...)
{
	va_list	ap;

	va_start(ap, fmt);
	vlog(pri, fmt, ap);
	va_end(ap);
}

void
log_enqueue(const char *fmt, ...)
{
	char tmpbuf[LOGQUEUE_SIZE];
	va_list ap;

	va_start(ap, fmt);
	(void)vsnprintf(tmpbuf, sizeof(tmpbuf), fmt, ap);
	va_end(ap);
	(void)strlcat(logqueue, tmpbuf, LOGQUEUE_SIZE);
}


void
vlog(int pri, const char *fmt, va_list ap)
{
	char	tmpbuf[1024];
	char	logbuf[LOGQUEUE_SIZE + sizeof(tmpbuf)];

	if (pri == LOG_DEBUG && !debug) {
		logqueue[0] = '\0';
		return;
	}

	(void)vsnprintf(tmpbuf, sizeof(tmpbuf), fmt, ap);
	(void)strlcpy(logbuf, logqueue, sizeof(logbuf));
	(void)strlcat(logbuf, tmpbuf, sizeof(logbuf));

	logqueue[0] = '\0';

	if (debug) {
		fprintf(stderr, "%s\n", logbuf);
		fflush(stderr);
	} else
		syslog(pri, "%s", logbuf);
}

void
log_warn(const char *emsg, ...)
{
	char	*nfmt;
	va_list	 ap;

	if (emsg == NULL)
		logit(LOG_ERR, "%s", strerror(errno));
	else {
		va_start(ap, emsg);

		/* best effort to even work in out of memory situations */
		if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
			/* we tried it... */
			vlog(LOG_ERR, emsg, ap);
			logit(LOG_ERR, "%s", strerror(errno));
		} else {
			vlog(LOG_ERR, nfmt, ap);
			free(nfmt);
		}
		va_end(ap);
	}
}

void
log_warnx(const char *emsg, ...)
{
	va_list	 ap;

	va_start(ap, emsg);
	vlog(LOG_ERR, emsg, ap);
	va_end(ap);
}

void
log_info(const char *emsg, ...)
{
	va_list	 ap;

	va_start(ap, emsg);
	vlog(LOG_INFO, emsg, ap);
	va_end(ap);
}

void
log_debug(const char *emsg, ...)
{
	va_list	 ap;

	va_start(ap, emsg);
	vlog(LOG_DEBUG, emsg, ap);
	va_end(ap);
}

void
fatal(const char *emsg)
{
	extern char	*__progname;
	extern __dead void rtdexit(void);

	if (emsg == NULL)
		logit(LOG_CRIT, "fatal in %s: %s", __progname,
		    strerror(errno));
	else
		if (errno)
			logit(LOG_CRIT, "fatal in %s: %s: %s",
			    __progname, emsg, strerror(errno));
		else
			logit(LOG_CRIT, "fatal in %s: %s",
			    __progname, emsg);

	rtdexit();
}

void
fatalx(const char *emsg)
{
	errno = 0;
	fatal(emsg);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: log.c,v 1.4 2017/07/28 13:05:21 florian Exp $ */
2
3			/*
4			* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
5			*
6			* Permission to use, copy, modify, and distribute this software for any
7			* purpose with or without fee is hereby granted, provided that the above
8			* copyright notice and this permission notice appear in all copies.
9			*
10			* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11			* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12			* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13			* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14			* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15			* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16			* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <err.h>
20			#include <errno.h>
21			#include <netdb.h>
22			#include <stdarg.h>
23			#include <stdio.h>
24			#include <stdlib.h>
25			#include <string.h>
26			#include <syslog.h>
27			#include <time.h>
28			#include <unistd.h>
29
30			#include "log.h"
31
32			static int debug;
33
34			static char *logqueue;
35
36			#define LOGQUEUE_SIZE 1024
37
38			void logit(int, const char *, ...);
39			void vlog(int pri, const char *fmt, va_list ap);
40
41			void
42			log_init(int n_debug)
43			{
44			extern char *__progname;
45
46			if (logqueue == NULL) {
47			logqueue = calloc(LOGQUEUE_SIZE, 1);
48			if (logqueue == NULL)
49			err(1, NULL);
50			}
51
52			debug = n_debug;
53
54			if (!debug)
55			openlog(__progname, LOG_PID \| LOG_NDELAY, LOG_DAEMON);
56
57			tzset();
58			}
59
60			void
61			logit(int pri, const char *fmt, ...)
62			{
63			va_list ap;
64
65			va_start(ap, fmt);
66			vlog(pri, fmt, ap);
67			va_end(ap);
68			}
69
70			void
71			log_enqueue(const char *fmt, ...)
72			{
73			char tmpbuf[LOGQUEUE_SIZE];
74			va_list ap;
75
76			va_start(ap, fmt);
77			(void)vsnprintf(tmpbuf, sizeof(tmpbuf), fmt, ap);
78			va_end(ap);
79			(void)strlcat(logqueue, tmpbuf, LOGQUEUE_SIZE);
80			}
81
82
83			void
84			vlog(int pri, const char *fmt, va_list ap)
85			{
86			char tmpbuf[1024];
87			char logbuf[LOGQUEUE_SIZE + sizeof(tmpbuf)];
88
89			if (pri == LOG_DEBUG && !debug) {
90			logqueue[0] = '\0';
91			return;
92			}
93
94			(void)vsnprintf(tmpbuf, sizeof(tmpbuf), fmt, ap);
95			(void)strlcpy(logbuf, logqueue, sizeof(logbuf));
96			(void)strlcat(logbuf, tmpbuf, sizeof(logbuf));
97
98			logqueue[0] = '\0';
99
100			if (debug) {
101			fprintf(stderr, "%s\n", logbuf);
102			fflush(stderr);
103			} else
104			syslog(pri, "%s", logbuf);
105			}
106
107			void
108			log_warn(const char *emsg, ...)
109			{
110			char *nfmt;
111			va_list ap;
112
113			if (emsg == NULL)
114			logit(LOG_ERR, "%s", strerror(errno));
115			else {
116			va_start(ap, emsg);
117
118			/* best effort to even work in out of memory situations */
119			if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
120			/* we tried it... */
121			vlog(LOG_ERR, emsg, ap);
122			logit(LOG_ERR, "%s", strerror(errno));
123			} else {
124			vlog(LOG_ERR, nfmt, ap);
125			free(nfmt);
126			}
127			va_end(ap);
128			}
129			}
130
131			void
132			log_warnx(const char *emsg, ...)
133			{
134			va_list ap;
135
136			va_start(ap, emsg);
137			vlog(LOG_ERR, emsg, ap);
138			va_end(ap);
139			}
140
141			void
142			log_info(const char *emsg, ...)
143			{
144			va_list ap;
145
146			va_start(ap, emsg);
147			vlog(LOG_INFO, emsg, ap);
148			va_end(ap);
149			}
150
151			void
152			log_debug(const char *emsg, ...)
153			{
154			va_list ap;
155
156			va_start(ap, emsg);
157			vlog(LOG_DEBUG, emsg, ap);
158			va_end(ap);
159			}
160
161			void
162			fatal(const char *emsg)
163			{
164			extern char *__progname;
165			extern __dead void rtdexit(void);
166
167			if (emsg == NULL)
168			logit(LOG_CRIT, "fatal in %s: %s", __progname,
169			strerror(errno));
170			else
171			if (errno)
172			logit(LOG_CRIT, "fatal in %s: %s: %s",
173			__progname, emsg, strerror(errno));
174			else
175			logit(LOG_CRIT, "fatal in %s: %s",
176			__progname, emsg);
177
178			rtdexit();
179			}
180
181			void
182			fatalx(const char *emsg)
183			{
184			errno = 0;
185			fatal(emsg);
186			}