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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/* Error logging facilities.
Copyright 1996, 1997 Linux International.
Contributed by Richard Henderson <rth@tamu.edu>
This file is part of the Linux modutils.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <limits.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include <syslog.h>
#include "util.h"
/*======================================================================*/
int do_log = 0;
int errors;
const char *error_file;
#define STOREMSG
#ifdef STOREMSG
struct cbuf {
struct cbuf *next;
int type;
char *msg;
} *head, *tail;
static void dumpmsg(void)
{
for (;head; head = head->next)
syslog(head->type, "%s", head->msg);
}
#endif /* STOREMSG */
void setsyslog(const char *program)
{
openlog(program, LOG_CONS, LOG_DAEMON);
#ifdef STOREMSG
atexit(dumpmsg);
#endif
do_log = 1;
}
#ifdef _STANDALONE_
static int silent;
const char *program_name;
static void savemsg(int type, char *msg)
{
struct cbuf *me = (struct cbuf *)xmalloc(sizeof(struct cbuf));
char *s = xstrdup(msg);
me->next = NULL;
me->type = type;
me->msg = s;
if (tail)
tail->next = me;
else
head = me;
tail = me;
}
void error(const char *fmt,...)
{
va_list args;
if (silent)
;
else if (do_log) {
char buf[2*PATH_MAX];
int n;
if (error_file)
n = snprintf(buf, sizeof(buf), "%s: ", error_file);
else
n = 0;
va_start(args, fmt);
vsnprintf(buf + n, sizeof(buf) - n, fmt, args);
va_end(args);
#ifdef STOREMSG
savemsg(LOG_ERR, buf);
#else
syslog(LOG_ERR, "%s", buf);
#endif
} else {
if (error_file)
fprintf(stderr, "%s: ", error_file);
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
putc('\n', stderr);
}
errors++;
}
void lprintf(const char *fmt,...)
{
va_list args;
if (silent);
else if (do_log) {
char buf[2*PATH_MAX];
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
#ifdef STOREMSG
savemsg(LOG_INFO, buf);
#else
syslog(LOG_INFO, "%s", buf);
#endif
} else {
va_start(args, fmt);
vfprintf(stdout, fmt, args);
va_end(args);
putchar('\n');
}
}
#else /* _STANDALONE_ */
#include "../../log.h"
void error(const char *s, ...)
{
va_list p;
va_start(p, s);
vlog_message(s, p);
va_end(p);
}
void lprintf(const char *s, ...)
{
va_list p;
va_start(p, s);
vlog_message(s, p);
va_end(p);
}
#endif
|