]>
Commit | Line | Data |
---|---|---|
43c02e7b VB |
1 | /* $OpenBSD: log.c,v 1.11 2007/12/07 17:17:00 reyk Exp $ */ |
2 | ||
3 | /* | |
4 | * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> | |
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 "lldpd.h" | |
20 | ||
21 | #include <sys/types.h> | |
22 | ||
23 | #include <errno.h> | |
24 | #include <stdarg.h> | |
25 | #include <stdio.h> | |
26 | #include <syslog.h> | |
27 | #include <time.h> | |
28 | ||
29 | void log_init(int); | |
30 | void log_warn(const char *, ...); | |
31 | void log_warnx(const char *, ...); | |
32 | void log_info(const char *, ...); | |
33 | void log_debug(const char *, ...); | |
34 | void fatal(const char *); | |
35 | void fatalx(const char *); | |
36 | ||
37 | int debug; | |
38 | ||
39 | void vlog(int, const char *, va_list); | |
40 | void logit(int, const char *, ...); | |
41 | ||
42 | void | |
43 | log_init(int n_debug) | |
44 | { | |
45 | extern char *__progname; | |
46 | ||
47 | debug = n_debug; | |
48 | ||
49 | if (!debug) | |
50 | openlog(__progname, LOG_PID | LOG_NDELAY, LOG_DAEMON); | |
51 | ||
52 | tzset(); | |
53 | } | |
54 | ||
55 | void | |
56 | logit(int pri, const char *fmt, ...) | |
57 | { | |
58 | va_list ap; | |
59 | ||
60 | va_start(ap, fmt); | |
61 | vlog(pri, fmt, ap); | |
62 | va_end(ap); | |
63 | } | |
64 | ||
65 | void | |
66 | vlog(int pri, const char *fmt, va_list ap) | |
67 | { | |
68 | char *nfmt; | |
69 | ||
70 | if (debug) { | |
71 | /* best effort in out of mem situations */ | |
72 | if (asprintf(&nfmt, "%s\n", fmt) == -1) { | |
73 | vfprintf(stderr, fmt, ap); | |
74 | fprintf(stderr, "\n"); | |
75 | } else { | |
76 | vfprintf(stderr, nfmt, ap); | |
77 | free(nfmt); | |
78 | } | |
79 | fflush(stderr); | |
80 | } else | |
81 | vsyslog(pri, fmt, ap); | |
82 | } | |
83 | ||
84 | ||
85 | void | |
86 | log_warn(const char *emsg, ...) | |
87 | { | |
88 | char *nfmt; | |
89 | va_list ap; | |
90 | ||
91 | /* best effort to even work in out of memory situations */ | |
92 | if (emsg == NULL) | |
93 | logit(LOG_CRIT, "%s", strerror(errno)); | |
94 | else { | |
95 | va_start(ap, emsg); | |
96 | ||
97 | if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) { | |
98 | /* we tried it... */ | |
99 | vlog(LOG_CRIT, emsg, ap); | |
100 | logit(LOG_CRIT, "%s", strerror(errno)); | |
101 | } else { | |
102 | vlog(LOG_CRIT, nfmt, ap); | |
103 | free(nfmt); | |
104 | } | |
105 | va_end(ap); | |
106 | } | |
107 | } | |
108 | ||
109 | void | |
110 | log_warnx(const char *emsg, ...) | |
111 | { | |
112 | va_list ap; | |
113 | ||
114 | va_start(ap, emsg); | |
115 | vlog(LOG_CRIT, emsg, ap); | |
116 | va_end(ap); | |
117 | } | |
118 | ||
119 | void | |
120 | log_info(const char *emsg, ...) | |
121 | { | |
122 | va_list ap; | |
123 | ||
124 | va_start(ap, emsg); | |
125 | vlog(LOG_INFO, emsg, ap); | |
126 | va_end(ap); | |
127 | } | |
128 | ||
129 | void | |
130 | log_debug(const char *emsg, ...) | |
131 | { | |
132 | va_list ap; | |
133 | ||
134 | if (debug > 1) { | |
135 | va_start(ap, emsg); | |
136 | vlog(LOG_DEBUG, emsg, ap); | |
137 | va_end(ap); | |
138 | } | |
139 | } | |
140 | ||
141 | void | |
142 | fatal(const char *emsg) | |
143 | { | |
144 | if (emsg == NULL) | |
145 | logit(LOG_CRIT, "fatal: %s", strerror(errno)); | |
146 | else | |
147 | if (errno) | |
148 | logit(LOG_CRIT, "fatal: %s: %s", | |
149 | emsg, strerror(errno)); | |
150 | else | |
151 | logit(LOG_CRIT, "fatal: %s", emsg); | |
152 | ||
153 | exit(1); | |
154 | } | |
155 | ||
156 | void | |
157 | fatalx(const char *emsg) | |
158 | { | |
159 | errno = 0; | |
160 | fatal(emsg); | |
161 | } |