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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/tmux/log.c	Lines:	0	43	0.0 %
Date:	2016-12-06	Branches:	0	20	0.0 %


/* $OpenBSD: log.c,v 1.23 2016/01/19 15:59:12 nicm Exp $ */

/*
 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * 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 MIND, 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 <sys/types.h>

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vis.h>

#include "tmux.h"

static FILE	*log_file;
static int	 log_level;

static void	 log_event_cb(int, const char *);
static void	 log_vwrite(const char *, va_list);

/* Log callback for libevent. */
static void
log_event_cb(__unused int severity, const char *msg)
{
	log_debug("%s", msg);
}

/* Increment log level. */
void
log_add_level(void)
{
	log_level++;
}

/* Get log level. */
int
log_get_level(void)
{
	return (log_level);
}

/* Open logging to file. */
void
log_open(const char *name)
{
	char	*path;

	if (log_level == 0)
		return;

	if (log_file != NULL)
		fclose(log_file);

	xasprintf(&path, "tmux-%s-%ld.log", name, (long)getpid());
	log_file = fopen(path, "w");
	free(path);
	if (log_file == NULL)
		return;

	setvbuf(log_file, NULL, _IOLBF, 0);
	event_set_log_callback(log_event_cb);
}

/* Close logging. */
void
log_close(void)
{
	if (log_file != NULL)
		fclose(log_file);
	log_file = NULL;

	event_set_log_callback(NULL);
}

/* Write a log message. */
static void
log_vwrite(const char *msg, va_list ap)
{
	char		*fmt, *out;
	struct timeval	 tv;

	if (log_file == NULL)
		return;

	if (vasprintf(&fmt, msg, ap) == -1)
		exit(1);
	if (stravis(&out, fmt, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL) == -1)
		exit(1);

	gettimeofday(&tv, NULL);
	if (fprintf(log_file, "%lld.%06d %s\n", (long long)tv.tv_sec,
	    (int)tv.tv_usec, out) == -1)
		exit(1);
	fflush(log_file);

	free(out);
	free(fmt);
}

/* Log a debug message. */
void
log_debug(const char *msg, ...)
{
	va_list	ap;

	va_start(ap, msg);
	log_vwrite(msg, ap);
	va_end(ap);
}

/* Log a critical error with error string and die. */
__dead void
fatal(const char *msg, ...)
{
	char	*fmt;
	va_list	 ap;

	va_start(ap, msg);
	if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
		exit(1);
	log_vwrite(fmt, ap);
	exit(1);
}

/* Log a critical error and die. */
__dead void
fatalx(const char *msg, ...)
{
	char	*fmt;
	va_list	 ap;

	va_start(ap, msg);
	if (asprintf(&fmt, "fatal: %s", msg) == -1)
		exit(1);
	log_vwrite(fmt, ap);
	exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: log.c,v 1.23 2016/01/19 15:59:12 nicm Exp $ */
2
3			/*
4			* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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 MIND, USE, DATA OR PROFITS, WHETHER
15			* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16			* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17			*/
18
19			#include <sys/types.h>
20
21			#include <errno.h>
22			#include <stdio.h>
23			#include <stdlib.h>
24			#include <string.h>
25			#include <unistd.h>
26			#include <vis.h>
27
28			#include "tmux.h"
29
30			static FILE *log_file;
31			static int log_level;
32
33			static void log_event_cb(int, const char *);
34			static void log_vwrite(const char *, va_list);
35
36			/* Log callback for libevent. */
37			static void
38			log_event_cb(__unused int severity, const char *msg)
39			{
40			log_debug("%s", msg);
41			}
42
43			/* Increment log level. */
44			void
45			log_add_level(void)
46			{
47			log_level++;
48			}
49
50			/* Get log level. */
51			int
52			log_get_level(void)
53			{
54			return (log_level);
55			}
56
57			/* Open logging to file. */
58			void
59			log_open(const char *name)
60			{
61			char *path;
62
63			if (log_level == 0)
64			return;
65
66			if (log_file != NULL)
67			fclose(log_file);
68
69			xasprintf(&path, "tmux-%s-%ld.log", name, (long)getpid());
70			log_file = fopen(path, "w");
71			free(path);
72			if (log_file == NULL)
73			return;
74
75			setvbuf(log_file, NULL, _IOLBF, 0);
76			event_set_log_callback(log_event_cb);
77			}
78
79			/* Close logging. */
80			void
81			log_close(void)
82			{
83			if (log_file != NULL)
84			fclose(log_file);
85			log_file = NULL;
86
87			event_set_log_callback(NULL);
88			}
89
90			/* Write a log message. */
91			static void
92			log_vwrite(const char *msg, va_list ap)
93			{
94			char fmt, out;
95			struct timeval tv;
96
97			if (log_file == NULL)
98			return;
99
100			if (vasprintf(&fmt, msg, ap) == -1)
101			exit(1);
102			if (stravis(&out, fmt, VIS_OCTAL\|VIS_CSTYLE\|VIS_TAB\|VIS_NL) == -1)
103			exit(1);
104
105			gettimeofday(&tv, NULL);
106			if (fprintf(log_file, "%lld.%06d %s\n", (long long)tv.tv_sec,
107			(int)tv.tv_usec, out) == -1)
108			exit(1);
109			fflush(log_file);
110
111			free(out);
112			free(fmt);
113			}
114
115			/* Log a debug message. */
116			void
117			log_debug(const char *msg, ...)
118			{
119			va_list ap;
120
121			va_start(ap, msg);
122			log_vwrite(msg, ap);
123			va_end(ap);
124			}
125
126			/* Log a critical error with error string and die. */
127			__dead void
128			fatal(const char *msg, ...)
129			{
130			char *fmt;
131			va_list ap;
132
133			va_start(ap, msg);
134			if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
135			exit(1);
136			log_vwrite(fmt, ap);
137			exit(1);
138			}
139
140			/* Log a critical error and die. */
141			__dead void
142			fatalx(const char *msg, ...)
143			{
144			char *fmt;
145			va_list ap;
146
147			va_start(ap, msg);
148			if (asprintf(&fmt, "fatal: %s", msg) == -1)
149			exit(1);
150			log_vwrite(fmt, ap);
151			exit(1);
152			}