OLD | NEW |
| (Empty) |
1 /* $OpenBSD: err.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */ | |
2 | |
3 /* | |
4 * log.c | |
5 * | |
6 * Based on err.c, which was adapted from OpenBSD libc *err* *warn* code. | |
7 * | |
8 * Copyright (c) 2005 Nick Mathewson <nickm@freehaven.net> | |
9 * | |
10 * Copyright (c) 2000 Dug Song <dugsong@monkey.org> | |
11 * | |
12 * Copyright (c) 1993 | |
13 * The Regents of the University of California. All rights reserved. | |
14 * | |
15 * Redistribution and use in source and binary forms, with or without | |
16 * modification, are permitted provided that the following conditions | |
17 * are met: | |
18 * 1. Redistributions of source code must retain the above copyright | |
19 * notice, this list of conditions and the following disclaimer. | |
20 * 2. Redistributions in binary form must reproduce the above copyright | |
21 * notice, this list of conditions and the following disclaimer in the | |
22 * documentation and/or other materials provided with the distribution. | |
23 * 3. Neither the name of the University nor the names of its contributors | |
24 * may be used to endorse or promote products derived from this software | |
25 * without specific prior written permission. | |
26 * | |
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
37 * SUCH DAMAGE. | |
38 */ | |
39 | |
40 #ifdef HAVE_CONFIG_H | |
41 #include "config.h" | |
42 #endif | |
43 | |
44 #ifdef WIN32 | |
45 #define WIN32_LEAN_AND_MEAN | |
46 #include <windows.h> | |
47 #undef WIN32_LEAN_AND_MEAN | |
48 #endif | |
49 #include <sys/types.h> | |
50 #ifdef HAVE_SYS_TIME_H | |
51 #include <sys/time.h> | |
52 #else | |
53 #include <sys/_libevent_time.h> | |
54 #endif | |
55 #include <stdio.h> | |
56 #include <stdlib.h> | |
57 #include <stdarg.h> | |
58 #include <string.h> | |
59 #include <errno.h> | |
60 #include "event.h" | |
61 | |
62 #include "log.h" | |
63 #include "evutil.h" | |
64 | |
65 static void _warn_helper(int severity, int log_errno, const char *fmt, | |
66 va_list ap); | |
67 static void event_log(int severity, const char *msg); | |
68 | |
69 void | |
70 event_err(int eval, const char *fmt, ...) | |
71 { | |
72 va_list ap; | |
73 | |
74 va_start(ap, fmt); | |
75 _warn_helper(_EVENT_LOG_ERR, errno, fmt, ap); | |
76 va_end(ap); | |
77 exit(eval); | |
78 } | |
79 | |
80 void | |
81 event_warn(const char *fmt, ...) | |
82 { | |
83 va_list ap; | |
84 | |
85 va_start(ap, fmt); | |
86 _warn_helper(_EVENT_LOG_WARN, errno, fmt, ap); | |
87 va_end(ap); | |
88 } | |
89 | |
90 void | |
91 event_errx(int eval, const char *fmt, ...) | |
92 { | |
93 va_list ap; | |
94 | |
95 va_start(ap, fmt); | |
96 _warn_helper(_EVENT_LOG_ERR, -1, fmt, ap); | |
97 va_end(ap); | |
98 exit(eval); | |
99 } | |
100 | |
101 void | |
102 event_warnx(const char *fmt, ...) | |
103 { | |
104 va_list ap; | |
105 | |
106 va_start(ap, fmt); | |
107 _warn_helper(_EVENT_LOG_WARN, -1, fmt, ap); | |
108 va_end(ap); | |
109 } | |
110 | |
111 void | |
112 event_msgx(const char *fmt, ...) | |
113 { | |
114 va_list ap; | |
115 | |
116 va_start(ap, fmt); | |
117 _warn_helper(_EVENT_LOG_MSG, -1, fmt, ap); | |
118 va_end(ap); | |
119 } | |
120 | |
121 void | |
122 _event_debugx(const char *fmt, ...) | |
123 { | |
124 va_list ap; | |
125 | |
126 va_start(ap, fmt); | |
127 _warn_helper(_EVENT_LOG_DEBUG, -1, fmt, ap); | |
128 va_end(ap); | |
129 } | |
130 | |
131 static void | |
132 _warn_helper(int severity, int log_errno, const char *fmt, va_list ap) | |
133 { | |
134 char buf[1024]; | |
135 size_t len; | |
136 | |
137 if (fmt != NULL) | |
138 evutil_vsnprintf(buf, sizeof(buf), fmt, ap); | |
139 else | |
140 buf[0] = '\0'; | |
141 | |
142 if (log_errno >= 0) { | |
143 len = strlen(buf); | |
144 if (len < sizeof(buf) - 3) { | |
145 evutil_snprintf(buf + len, sizeof(buf) - len, ": %s", | |
146 strerror(log_errno)); | |
147 } | |
148 } | |
149 | |
150 event_log(severity, buf); | |
151 } | |
152 | |
153 static event_log_cb log_fn = NULL; | |
154 | |
155 void | |
156 event_set_log_callback(event_log_cb cb) | |
157 { | |
158 log_fn = cb; | |
159 } | |
160 | |
161 static void | |
162 event_log(int severity, const char *msg) | |
163 { | |
164 if (log_fn) | |
165 log_fn(severity, msg); | |
166 else { | |
167 const char *severity_str; | |
168 switch (severity) { | |
169 case _EVENT_LOG_DEBUG: | |
170 severity_str = "debug"; | |
171 break; | |
172 case _EVENT_LOG_MSG: | |
173 severity_str = "msg"; | |
174 break; | |
175 case _EVENT_LOG_WARN: | |
176 severity_str = "warn"; | |
177 break; | |
178 case _EVENT_LOG_ERR: | |
179 severity_str = "err"; | |
180 break; | |
181 default: | |
182 severity_str = "???"; | |
183 break; | |
184 } | |
185 (void)fprintf(stderr, "[%s] %s\n", severity_str, msg); | |
186 } | |
187 } | |
OLD | NEW |