1 /*
2 * Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 2001-2003 Internet Software Consortium.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 /* $Id: syslog.c,v 1.10 2007/06/19 23:47:19 tbox Exp $ */
19
20 #include <config.h>
21
22 #include <stdio.h>
23 #include <windows.h>
24 #include <string.h>
25 #include <stdlib.h>
26 #include <syslog.h>
27
28 #include <isc/bindevt.h>
29 #include <isc/result.h>
30 #include <isc/syslog.h>
31 #include <isc/util.h>
32
33 static HANDLE hAppLog = NULL;
34 static FILE *log_stream;
35 static int debug_level = 0;
36
37 static struct dsn_c_pvt_sfnt {
38 int val;
39 const char *strval;
40 } facilities[] = {
41 { LOG_KERN, "kern" },
42 { LOG_USER, "user" },
43 { LOG_MAIL, "mail" },
44 { LOG_DAEMON, "daemon" },
45 { LOG_AUTH, "auth" },
46 { LOG_SYSLOG, "syslog" },
47 { LOG_LPR, "lpr" },
48 #ifdef LOG_NEWS
49 { LOG_NEWS, "news" },
50 #endif
51 #ifdef LOG_UUCP
52 { LOG_UUCP, "uucp" },
53 #endif
54 #ifdef LOG_CRON
55 { LOG_CRON, "cron" },
56 #endif
57 #ifdef LOG_AUTHPRIV
58 { LOG_AUTHPRIV, "authpriv" },
59 #endif
60 #ifdef LOG_FTP
61 { LOG_FTP, "ftp" },
62 #endif
63 { LOG_LOCAL0, "local0"},
64 { LOG_LOCAL1, "local1"},
65 { LOG_LOCAL2, "local2"},
66 { LOG_LOCAL3, "local3"},
67 { LOG_LOCAL4, "local4"},
68 { LOG_LOCAL5, "local5"},
69 { LOG_LOCAL6, "local6"},
70 { LOG_LOCAL7, "local7"},
71 { 0, NULL }
72 };
73
74 isc_result_t
isc_syslog_facilityfromstring(const char * str,int * facilityp)75 isc_syslog_facilityfromstring(const char *str, int *facilityp) {
76 int i;
77
78 REQUIRE(str != NULL);
79 REQUIRE(facilityp != NULL);
80
81 for (i = 0; facilities[i].strval != NULL; i++) {
82 if (strcasecmp(facilities[i].strval, str) == 0) {
83 *facilityp = facilities[i].val;
84 return (ISC_R_SUCCESS);
85 }
86 }
87 return (ISC_R_NOTFOUND);
88 }
89
90 /*
91 * Log to the NT Event Log
92 */
93 void
syslog(int level,const char * fmt,...)94 syslog(int level, const char *fmt, ...) {
95 va_list ap;
96 char buf[1024];
97 char *str[1];
98
99 str[0] = buf;
100
101 va_start(ap, fmt);
102 vsprintf(buf, fmt, ap);
103 va_end(ap);
104
105 /* Make sure that the channel is open to write the event */
106 if (hAppLog != NULL) {
107 switch (level) {
108 case LOG_INFO:
109 case LOG_NOTICE:
110 case LOG_DEBUG:
111 ReportEvent(hAppLog, EVENTLOG_INFORMATION_TYPE, 0,
112 BIND_INFO_MSG, NULL, 1, 0, str, NULL);
113 break;
114 case LOG_WARNING:
115 ReportEvent(hAppLog, EVENTLOG_WARNING_TYPE, 0,
116 BIND_WARN_MSG, NULL, 1, 0, str, NULL);
117 break;
118 default:
119 ReportEvent(hAppLog, EVENTLOG_ERROR_TYPE, 0,
120 BIND_ERR_MSG, NULL, 1, 0, str, NULL);
121 break;
122 }
123 }
124 }
125
126 /*
127 * Initialize event logging
128 */
129 void
openlog(const char * name,int flags,...)130 openlog(const char *name, int flags, ...) {
131 /* Get a handle to the Application event log */
132 hAppLog = RegisterEventSource(NULL, name);
133 }
134
135 /*
136 * Close the Handle to the application Event Log
137 * We don't care whether or not we succeeded so ignore return values
138 * In fact if we failed then we would have nowhere to put the message
139 */
140 void
closelog()141 closelog() {
142 DeregisterEventSource(hAppLog);
143 }
144
145 /*
146 * Keep event logging synced with the current debug level
147 */
148 void
ModifyLogLevel(int level)149 ModifyLogLevel(int level) {
150 debug_level = level;
151 }
152
153 /*
154 * Initialize logging for the port section of libbind.
155 * Piggyback onto stream given.
156 */
157 void
InitNTLogging(FILE * stream,int debug)158 InitNTLogging(FILE *stream, int debug) {
159 log_stream = stream;
160 ModifyLogLevel(debug);
161 }
162 /*
163 * This function is for reporting errors to the application
164 * event log in case the regular syslog is not available
165 * mainly during startup. It should not be used under normal
166 * circumstances.
167 */
168 void
NTReportError(const char * name,const char * str)169 NTReportError(const char *name, const char *str) {
170 HANDLE hNTAppLog = NULL;
171 const char *buf[1];
172
173 buf[0] = str;
174
175 hNTAppLog = RegisterEventSource(NULL, name);
176
177 ReportEvent(hNTAppLog, EVENTLOG_ERROR_TYPE, 0,
178 BIND_ERR_MSG, NULL, 1, 0, buf, NULL);
179
180 DeregisterEventSource(hNTAppLog);
181 }
182