1 /*
2  * ngIRCd -- The Next Generation IRC Daemon
3  * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  * Please read the file COPYING, README and AUTHORS for more information.
10  *
11  * Logging functions
12  */
13 
14 
15 #include "portab.h"
16 
17 static char UNUSED id[] = "$Id: log.c,v 1.48 2004/10/20 13:47:32 alex Exp $";
18 
19 #include "imp.h"
20 #include <assert.h>
21 #include <errno.h>
22 #ifdef PROTOTYPES
23 #	include <stdarg.h>
24 #else
25 #	include <varargs.h>
26 #endif
27 #include <stdio.h>
28 #include <string.h>
29 #include <sys/types.h>
30 #include <unistd.h>
31 
32 #ifdef SYSLOG
33 #include <syslog.h>
34 #endif
35 
36 #include "ngircd.h"
37 #include "defines.h"
38 #include "conn.h"
39 #include "client.h"
40 #include "channel.h"
41 #include "irc-write.h"
42 
43 #include "exp.h"
44 #include "log.h"
45 
46 
47 LOCAL CHAR Error_File[FNAME_LEN];
48 LOCAL CHAR Init_Txt[127];
49 
50 
51 LOCAL VOID Wall_ServerNotice PARAMS(( CHAR *Msg ));
52 
53 
54 GLOBAL VOID
55 Log_Init( VOID )
56 {
57 #ifdef SYSLOG
58 	/* Syslog initialisieren */
59 	openlog( PACKAGE_NAME, LOG_CONS|LOG_PID, LOG_LOCAL5 );
60 #endif
61 
62 	/* Hello World! */
63 	Log( LOG_NOTICE, "%s started.", NGIRCd_Version( ));
64 	  
65 	/* Informationen uebern den "Operation Mode" */
66 	strcpy( Init_Txt, "" );
67 #ifdef DEBUG
68 	if( NGIRCd_Debug )
69 	{
70 		if( Init_Txt[0] ) strcat( Init_Txt, ", " );
71 		strcat( Init_Txt, "debug-mode" );
72 	}
73 #endif
74 	if( NGIRCd_NoDaemon )
75 	{
76 		if( Init_Txt[0] ) strcat( Init_Txt, ", " );
77 		strcat( Init_Txt, "no-daemon-mode" );
78 	}
79 	if( NGIRCd_Passive )
80 	{
81 		if( Init_Txt[0] ) strcat( Init_Txt, ", " );
82 		strcat( Init_Txt, "passive-mode" );
83 	}
84 #ifdef SNIFFER
85 	if( NGIRCd_Sniffer )
86 	{
87 		if( Init_Txt[0] ) strcat( Init_Txt, ", " );
88 		strcat( Init_Txt, "network sniffer" );
89 	}
90 #endif
91 	if( Init_Txt[0] ) Log( LOG_INFO, "Activating: %s.", Init_Txt );
92 
93 	Error_File[0] = '\0';
94 } /* Log_Init */
95 
96 
97 GLOBAL VOID
98 Log_InitErrorfile( VOID )
99 {
100 	/* "Error-Log" initialisieren: stderr in Datei umlenken. Dort
101 	 * landen z.B. alle Ausgaben von assert()-Aufrufen. */
102 
103 	/* Dateiname zusammen bauen */
104 	sprintf( Error_File, "%s/%s-%ld.err", ERROR_DIR, PACKAGE_NAME, (LONG)getpid( ));
105 
106 	/* stderr umlenken */
107 	fflush( stderr );
108 	if( ! freopen( Error_File, "w", stderr ))
109 	{
110 		Log( LOG_ERR, "Can't reopen stderr (\"%s\"): %s", Error_File, strerror( errno ));
111 		return;
112 	}
113 
114 	/* Einige Infos in das Error-File schreiben */
115 	fputs( ctime( &NGIRCd_Start ), stderr );
116 	fprintf( stderr, "%s started.\n", NGIRCd_Version( ));
117 	fprintf( stderr, "Activating: %s\n\n", Init_Txt[0] ? Init_Txt : "-" );
118 	fflush( stderr );
119 
120 	Log( LOG_DEBUG, "Redirected stderr to \"%s\".", Error_File );
121 } /* Log_InitErrfile */
122 
123 
124 GLOBAL VOID
125 Log_Exit( VOID )
126 {
127 	/* Good Bye! */
128 	if( NGIRCd_SignalRestart ) Log( LOG_NOTICE, "%s done (restarting).", PACKAGE_NAME );
129 	else Log( LOG_NOTICE, "%s done.", PACKAGE_NAME );
130 
131 	if( Error_File[0] )
132 	{
133 		/* Error-File (stderr) loeschen */
134 		if( unlink( Error_File ) != 0 ) Log( LOG_ERR, "Can't delete \"%s\": %s", Error_File, strerror( errno ));
135 	}
136 
137 #ifdef SYSLOG
138 	/* syslog abmelden */
139 	closelog( );
140 #endif
141 } /* Log_Exit */
142 
143 
144 #ifdef PROTOTYPES
145 GLOBAL VOID
146 Log( INT Level, CONST CHAR *Format, ... )
147 #else
148 GLOBAL VOID
149 Log( Level, Format, va_alist )
150 INT Level;
151 CONST CHAR *Format;
152 va_dcl
153 #endif
154 {
155 	/* Eintrag in Logfile(s) schreiben */
156 
157 	CHAR msg[MAX_LOG_MSG_LEN];
158 	BOOLEAN snotice;
159 	va_list ap;
160 
161 	assert( Format != NULL );
162 
163 	if( Level & LOG_snotice )
164 	{
165 		/* Notice an User mit "s" Mode */
166 		snotice = TRUE;
167 		Level &= ~LOG_snotice;
168 	}
169 	else snotice = FALSE;
170 
171 #ifdef DEBUG
172 	if(( Level == LOG_DEBUG ) && ( ! NGIRCd_Debug )) return;
173 #else
174 	if( Level == LOG_DEBUG ) return;
175 #endif
176 
177 	/* String mit variablen Argumenten zusammenbauen ... */
178 #ifdef PROTOTYPES
179 	va_start( ap, Format );
180 #else
181 	va_start( ap );
182 #endif
183 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
184 	va_end( ap );
185 
186 	if( NGIRCd_NoDaemon )
187 	{
188 		/* auf Konsole ausgeben */
189 		fprintf( stdout, "[%d:%d] %s\n", (INT)getpid( ), Level, msg );
190 		fflush( stdout );
191 	}
192 #ifdef SYSLOG
193 	else
194 	{
195 		/* Syslog */
196 		syslog( Level, "%s", msg );
197 	}
198 #endif
199 
200 	if( Level <= LOG_CRIT )
201 	{
202 		/* Kritische Meldungen in Error-File (stderr) */
203 		fprintf( stderr, "%s\n", msg );
204 		fflush( stderr );
205 	}
206 
207 	if( snotice )
208 	{
209 		/* NOTICE an lokale User mit "s"-Mode */
210 		Wall_ServerNotice( msg );
211 	}
212 } /* Log */
213 
214 
215 GLOBAL VOID
216 Log_Init_Resolver( VOID )
217 {
218 #ifdef SYSLOG
219 	openlog( PACKAGE_NAME, LOG_CONS|LOG_PID, LOG_LOCAL5 );
220 #endif
221 	Log_Resolver( LOG_DEBUG, "Resolver sub-process starting, PID %d.", getpid( ));
222 } /* Log_Init_Resolver */
223 
224 
225 GLOBAL VOID
226 Log_Exit_Resolver( VOID )
227 {
228 	Log_Resolver( LOG_DEBUG, "Resolver sub-process %d done.", getpid( ));
229 #ifdef SYSLOG
230 	closelog( );
231 #endif
232 } /* Log_Exit_Resolver */
233 
234 
235 #ifdef PROTOTYPES
236 GLOBAL VOID
237 Log_Resolver( CONST INT Level, CONST CHAR *Format, ... )
238 #else
239 GLOBAL VOID
240 Log_Resolver( Level, Format, va_alist )
241 CONST INT Level;
242 CONST CHAR *Format;
243 va_dcl
244 #endif
245 {
246 	/* Eintrag des Resolver in Logfile(s) schreiben */
247 
248 	CHAR msg[MAX_LOG_MSG_LEN];
249 	va_list ap;
250 
251 	assert( Format != NULL );
252 
253 #ifdef DEBUG
254 	if(( Level == LOG_DEBUG ) && ( ! NGIRCd_Debug )) return;
255 #else
256 	if( Level == LOG_DEBUG ) return;
257 #endif
258 
259 	/* String mit variablen Argumenten zusammenbauen ... */
260 #ifdef PROTOTYPES
261 	va_start( ap, Format );
262 #else
263 	va_start( ap );
264 #endif
265 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
266 	va_end( ap );
267 
268 	/* Output */
269 	if( NGIRCd_NoDaemon )
270 	{
271 		/* Output to console */
272 		fprintf( stdout, "[%d:%d] %s\n", (INT)getpid( ), Level, msg );
273 		fflush( stdout );
274 	}
275 #ifdef SYSLOG
276 	else syslog( Level, msg );
277 #endif
278 } /* Log_Resolver */
279 
280 
281 LOCAL VOID
282 Wall_ServerNotice( CHAR *Msg )
283 {
284 	/* Server-Notice an entsprechende User verschicken */
285 
286 	CLIENT *c;
287 
288 	assert( Msg != NULL );
289 
290 	c = Client_First( );
291 	while( c )
292 	{
293 		if(( Client_Conn( c ) > NONE ) && ( Client_HasMode( c, 's' ))) IRC_WriteStrClient( c, "NOTICE %s :%s%s", Client_ThisServer( ), NOTICE_TXTPREFIX, Msg );
294 		c = Client_Next( c );
295 	}
296 } /* Wall_ServerNotice */
297 
298 
299 /* -eof- */