1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* dhcpcd - DHCP client daemon
* Copyright 2006-2008 Roy Marples <roy@marples.name>
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include "common.h"
#include "logger.h"
static int loglevel = LOG_INFO;
static char logprefix[12] = {0};
void
setloglevel(int level)
{
loglevel = level;
}
void
setlogprefix(const char *prefix)
{
strlcpy(logprefix, prefix, sizeof(logprefix));
}
void
logger(int level, const char *fmt, ...)
{
va_list p, p2;
FILE *f = stderr;
size_t len, fmt2len;
char *fmt2, *pf;
va_start(p, fmt);
va_copy(p2, p);
if (level <= LOG_ERR || level <= loglevel) {
fprintf(f, "%s", logprefix);
vfprintf(f, fmt, p);
fputc('\n', f);
}
if (level < LOG_DEBUG || level <= loglevel) {
len = strlen(logprefix);
fmt2len = strlen(fmt) + len + 1;
fmt2 = pf = malloc(sizeof(char) * fmt2len);
if (fmt2) {
strlcpy(pf, logprefix, fmt2len);
pf += len;
strlcpy(pf, fmt, fmt2len - len);
vsyslog(level, fmt2, p2);
free(fmt2);
} else {
vsyslog(level, fmt, p2);
syslog(LOG_ERR, "logger: memory exhausted");
exit(EXIT_FAILURE);
}
}
va_end(p2);
va_end(p);
}
|
