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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/* $OpenBSD: errwarn.c,v 1.7 2004/05/04 22:23:01 mickey Exp $ */
/* Errors and warnings... */
/*
* Copyright (c) 1996 The Internet Software Consortium.
* All Rights Reserved.
* Copyright (c) 1995 RadioMail Corporation. 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.
* 3. Neither the name of RadioMail Corporation, the Internet Software
* Consortium nor the names of its contributors may be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RADIOMAIL CORPORATION, THE INTERNET
* SOFTWARE CONSORTIUM 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 RADIOMAIL CORPORATION 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.
*
* This software was written for RadioMail Corporation by Ted Lemon
* under a contract with Vixie Enterprises. Further modifications have
* been made for the Internet Software Consortium under a contract
* with Vixie Laboratories.
*/
#include <errno.h>
#include "dhcpd.h"
static void do_percentm(char *obuf, size_t size, char *ibuf);
static char mbuf[1024];
static char fbuf[1024];
int warnings_occurred;
/*
* Log an error message, then exit.
*/
void
error(char *fmt, ...)
{
va_list list;
do_percentm(fbuf, sizeof(fbuf), fmt);
va_start(list, fmt);
vsnprintf(mbuf, sizeof(mbuf), fbuf, list);
va_end(list);
#ifndef DEBUG
syslog(log_priority | LOG_ERR, "%s", mbuf);
#endif
/* Also log it to stderr? */
if (log_perror) {
write(2, mbuf, strlen(mbuf));
write(2, "\n", 1);
}
syslog(LOG_CRIT, "exiting.");
if (log_perror) {
fprintf(stderr, "exiting.\n");
fflush(stderr);
}
exit(1);
}
/*
* Log a warning message...
*/
int
warning(char *fmt, ...)
{
va_list list;
do_percentm(fbuf, sizeof(fbuf), fmt);
va_start(list, fmt);
vsnprintf(mbuf, sizeof(mbuf), fbuf, list);
va_end(list);
#ifndef DEBUG
syslog(log_priority | LOG_ERR, "%s", mbuf);
#endif
if (log_perror) {
write(2, mbuf, strlen(mbuf));
write(2, "\n", 1);
}
return (0);
}
/*
* Log a note...
*/
int
note(char *fmt, ...)
{
va_list list;
do_percentm(fbuf, sizeof(fbuf), fmt);
va_start(list, fmt);
vsnprintf(mbuf, sizeof(mbuf), fbuf, list);
va_end(list);
#ifndef DEBUG
syslog(log_priority | LOG_INFO, "%s", mbuf);
#endif
if (log_perror) {
write(2, mbuf, strlen(mbuf));
write(2, "\n", 1);
}
return (0);
}
/*
* Log a debug message...
*/
int
debug(char *fmt, ...)
{
va_list list;
do_percentm(fbuf, sizeof(fbuf), fmt);
va_start(list, fmt);
vsnprintf(mbuf, sizeof(mbuf), fbuf, list);
va_end(list);
#ifndef DEBUG
syslog(log_priority | LOG_DEBUG, "%s", mbuf);
#endif
if (log_perror) {
write(2, mbuf, strlen(mbuf));
write(2, "\n", 1);
}
return (0);
}
/*
* Find %m in the input string and substitute an error message string.
*/
static void
do_percentm(char *obuf, size_t size, char *ibuf)
{
char ch;
char *s = ibuf;
char *t = obuf;
size_t prlen;
size_t fmt_left;
int saved_errno = errno;
/*
* We wouldn't need this mess if printf handled %m, or if
* strerror() had been invented before syslog().
*/
for (fmt_left = size; (ch = *s); ++s) {
if (ch == '%' && s[1] == 'm') {
++s;
prlen = snprintf(t, fmt_left, "%s",
strerror(saved_errno));
if (prlen >= fmt_left)
prlen = fmt_left - 1;
t += prlen;
fmt_left -= prlen;
} else {
if (fmt_left > 1) {
*t++ = ch;
fmt_left--;
}
}
}
*t = '\0';
}
int
parse_warn(char *fmt, ...)
{
va_list list;
static char spaces[] =
" "
" "; /* 80 spaces */
do_percentm(mbuf, sizeof(mbuf), fmt);
snprintf(fbuf, sizeof(fbuf), "%s line %d: %s", tlname, lexline, mbuf);
va_start(list, fmt);
vsnprintf(mbuf, sizeof(mbuf), fbuf, list);
va_end(list);
#ifndef DEBUG
syslog(log_priority | LOG_ERR, "%s", mbuf);
syslog(log_priority | LOG_ERR, "%s", token_line);
if (lexline < 81)
syslog(log_priority | LOG_ERR,
"%s^", &spaces[sizeof(spaces) - lexchar]);
#endif
if (log_perror) {
write(2, mbuf, strlen(mbuf));
write(2, "\n", 1);
write(2, token_line, strlen(token_line));
write(2, "\n", 1);
write(2, spaces, lexchar - 1);
write(2, "^\n", 2);
}
warnings_occurred = 1;
return (0);
}
|
