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Date:: Wed Mar 27 16:39:22 2002 UTC
Message:: - neue Funktion Conf_Test() zum Testen der Konfiguration. - Conf_File ist entfallen, ist nun NGIRCd_ConfFile.
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1 /*
2  * ngIRCd -- The Next Generation IRC Daemon
3  * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
4  *
5  * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
6  * der GNU General Public License (GPL), wie von der Free Software Foundation
7  * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
8  * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
9  * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
10  * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
11  *
12  * $Id: conf.c,v 1.21 2002/03/27 16:39:22 alex Exp $
13  *
14  * conf.h: Konfiguration des ngircd
15  */
16 
17 
18 #include "portab.h"
19 
20 #include "imp.h"
21 #include <assert.h>
22 #include <errno.h>
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <unistd.h>
28 
29 #include "ngircd.h"
30 #include "client.h"
31 #include "defines.h"
32 #include "log.h"
33 #include "tool.h"
34 
35 #include "exp.h"
36 #include "conf.h"
37 
38 
39 LOCAL BOOLEAN Use_Log = TRUE;
40 
41 
42 LOCAL VOID Set_Defaults( VOID );
43 LOCAL VOID Read_Config( VOID );
44 LOCAL VOID Validate_Config( VOID );
45 
46 GLOBAL VOID Handle_GLOBAL( INT Line, CHAR *Var, CHAR *Arg );
47 GLOBAL VOID Handle_OPERATOR( INT Line, CHAR *Var, CHAR *Arg );
48 GLOBAL VOID Handle_SERVER( INT Line, CHAR *Var, CHAR *Arg );
49 
50 LOCAL VOID Config_Error( CONST INT Level, CONST CHAR *Format, ... );
51 
52 
53 GLOBAL VOID Conf_Init( VOID )
54 {
55 	Set_Defaults( );
56 	Read_Config( );
57 	Validate_Config( );
58 } /* Config_Init */
59 
60 
61 GLOBAL INT Conf_Test( VOID )
62 {
63 	/* Konfiguration einlesen, ueberpruefen und ausgeben. */
64 
65 	INT i;
66 
67 	Use_Log = FALSE;
68 	Set_Defaults( );
69 
70 	printf( "Using \"%s\" as configuration file ...\n", NGIRCd_ConfFile );
71 	Read_Config( );
72 
73 	/* Wenn stdin ein ein TTY ist: auf Taste warten */
74 	if( isatty( fileno( stdout )))
75 	{
76 		puts( "OK, press enter to see a dump of your service configuration ..." );
77 		getchar( );
78 	}
79 	else puts( "Ok, dump of your server configuration follows:\n" );
80 
81 	puts( "[GLOBAL]" );
82 	printf( "  ServerName = %s\n", Conf_ServerName );
83 	printf( "  ServerInfo = %s\n", Conf_ServerInfo );
84 	printf( "  ServerPwd = %s\n", Conf_ServerPwd );
85 	printf( "  MotdFile = %s\n", Conf_MotdFile );
86 	printf( "  ListenPorts = " );
87 	for( i = 0; i < Conf_ListenPorts_Count; i++ )
88 	{
89 		if( i != 0 ) printf( ", " );
90 		printf( "%d", Conf_ListenPorts[i] );
91 	}
92 	if( Conf_ListenPorts_Count < 1 ) puts( "<none>");
93 	else puts( "" );
94 	printf( "  PingTimeout = %d\n", Conf_PingTimeout );
95 	printf( "  PongTimeout = %d\n", Conf_PongTimeout );
96 	printf( "  ConnectRetry = %d\n", Conf_ConnectRetry );
97 	puts( "" );
98 
99 	for( i = 0; i < Conf_Oper_Count; i++ )
100 	{
101 		puts( "[OPERATOR]" );
102 		printf( "  Name = %s\n", Conf_Oper[i].name );
103 		printf( "  Password = %s\n", Conf_Oper[i].pwd );
104 		puts( "" );
105 	}
106 
107 	for( i = 0; i < Conf_Server_Count; i++ )
108 	{
109 		puts( "[SERVER]" );
110 		printf( "  Name = %s\n", Conf_Server[i].name );
111 		printf( "  Host = %s\n", Conf_Server[i].host );
112 		printf( "  Port = %d\n", Conf_Server[i].port );
113 		printf( "  Password = %s\n", Conf_Server[i].pwd );
114 		printf( "  Group = %d\n", Conf_Server[i].group );
115 		puts( "" );
116 	}
117 	
118 	return 0;
119 } /* Conf_Test */
120 
121 
122 GLOBAL VOID Conf_Exit( VOID )
123 {
124 	/* ... */
125 } /* Config_Exit */
126 
127 
128 LOCAL VOID Set_Defaults( VOID )
129 {
130 	/* Konfigurationsvariablen initialisieren, d.h. auf Default-Werte setzen. */
131 
132 	strcpy( Conf_ServerName, "" );
133 	strcpy( Conf_ServerInfo, PACKAGE" "VERSION );
134 	strcpy( Conf_ServerPwd, "" );
135 
136 	strcpy( Conf_MotdFile, MOTD_FILE );
137 
138 	Conf_ListenPorts_Count = 0;
139 	
140 	Conf_PingTimeout = 120;
141 	Conf_PongTimeout = 20;
142 
143 	Conf_ConnectRetry = 60;
144 
145 	Conf_Oper_Count = 0;
146 
147 	Conf_Server_Count = 0;
148 } /* Set_Defaults */
149 
150 
151 LOCAL VOID Read_Config( VOID )
152 {
153 	/* Konfigurationsdatei einlesen. */
154 
155 	CHAR section[LINE_LEN], str[LINE_LEN], *var, *arg, *ptr;
156 	INT line;
157 	FILE *fd;
158 
159 	fd = fopen( NGIRCd_ConfFile, "r" );
160 	if( ! fd )
161 	{
162 		/* Keine Konfigurationsdatei gefunden */
163 		Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s", NGIRCd_ConfFile, strerror( errno ));
164 		Config_Error( LOG_ALERT, PACKAGE" exiting due to fatal errors!" );
165 		exit( 1 );
166 	}
167 
168 	line = 0;
169 	strcpy( section, "" );
170 	while( TRUE )
171 	{
172 		if( ! fgets( str, LINE_LEN, fd )) break;
173 		ngt_TrimStr( str );
174 		line++;
175 
176 		/* Kommentarzeilen und leere Zeilen ueberspringen */
177 		if( str[0] == ';' || str[0] == '#' || str[0] == '\0' ) continue;
178 
179 		/* Anfang eines Abschnittes? */
180 		if(( str[0] == '[' ) && ( str[strlen( str ) - 1] == ']' ))
181 		{
182 			strcpy( section, str );
183 			if( strcasecmp( section, "[GLOBAL]" ) == 0 ) continue;
184 			if( strcasecmp( section, "[OPERATOR]" ) == 0 )
185 			{
186 				if( Conf_Oper_Count + 1 > MAX_OPERATORS ) Config_Error( LOG_ERR, "Too many operators configured." );
187 				else
188 				{
189 					/* neuen Operator initialisieren */
190 					strcpy( Conf_Oper[Conf_Oper_Count].name, "" );
191 					strcpy( Conf_Oper[Conf_Oper_Count].pwd, "" );
192 					Conf_Oper_Count++;
193 				}
194 				continue;
195 			}
196 			if( strcasecmp( section, "[SERVER]" ) == 0 )
197 			{
198 				if( Conf_Server_Count + 1 > MAX_SERVERS ) Config_Error( LOG_ERR, "Too many servers configured." );
199 				else
200 				{
201 					/* neuen Server ("Peer") initialisieren */
202 					strcpy( Conf_Server[Conf_Server_Count].host, "" );
203 					strcpy( Conf_Server[Conf_Server_Count].ip, "" );
204 					strcpy( Conf_Server[Conf_Server_Count].name, "" );
205 					strcpy( Conf_Server[Conf_Server_Count].pwd, "" );
206 					Conf_Server[Conf_Server_Count].port = 0;
207 					Conf_Server[Conf_Server_Count].group = -1;
208 					Conf_Server[Conf_Server_Count].lasttry = time( NULL ) - Conf_ConnectRetry + STARTUP_DELAY;
209 					Conf_Server[Conf_Server_Count].res_stat = NULL;
210 					Conf_Server_Count++;
211 				}
212 				continue;
213 			}
214 			Config_Error( LOG_ERR, "%s, line %d: Unknown section \"%s\"!", NGIRCd_ConfFile, line, section );
215 			section[0] = 0x1;
216 		}
217 		if( section[0] == 0x1 ) continue;
218 
219 		/* In Variable und Argument zerlegen */
220 		ptr = strchr( str, '=' );
221 		if( ! ptr )
222 		{
223 			Config_Error( LOG_ERR, "%s, line %d: Syntax error!", NGIRCd_ConfFile, line );
224 			continue;
225 		}
226 		*ptr = '\0';
227 		var = str; ngt_TrimStr( var );
228 		arg = ptr + 1; ngt_TrimStr( arg );
229 
230 		if( strcasecmp( section, "[GLOBAL]" ) == 0 ) Handle_GLOBAL( line, var, arg );
231 		else if( strcasecmp( section, "[OPERATOR]" ) == 0 ) Handle_OPERATOR( line, var, arg );
232 		else if( strcasecmp( section, "[SERVER]" ) == 0 ) Handle_SERVER( line, var, arg );
233 		else Config_Error( LOG_ERR, "%s, line %d: Variable \"%s\" outside section!", NGIRCd_ConfFile, line, var );
234 	}
235 	
236 	fclose( fd );
237 } /* Read_Config */
238 
239 
240 GLOBAL VOID Handle_GLOBAL( INT Line, CHAR *Var, CHAR *Arg )
241 {
242 	CHAR *ptr;
243 	INT32 port;
244 	
245 	assert( Line > 0 );
246 	assert( Var != NULL );
247 	assert( Arg != NULL );
248 	
249 	if( strcasecmp( Var, "Name" ) == 0 )
250 	{
251 		/* Der Server-Name */
252 		strncpy( Conf_ServerName, Arg, CLIENT_ID_LEN - 1 );
253 		Conf_ServerName[CLIENT_ID_LEN - 1] = '\0';
254 		return;
255 	}
256 	if( strcasecmp( Var, "Info" ) == 0 )
257 	{
258 		/* Server-Info-Text */
259 		strncpy( Conf_ServerInfo, Arg, CLIENT_INFO_LEN - 1 );
260 		Conf_ServerInfo[CLIENT_INFO_LEN - 1] = '\0';
261 		return;
262 	}
263 	if( strcasecmp( Var, "Password" ) == 0 )
264 	{
265 		/* Server-Passwort */
266 		strncpy( Conf_ServerPwd, Arg, CLIENT_PASS_LEN - 1 );
267 		Conf_ServerPwd[CLIENT_PASS_LEN - 1] = '\0';
268 		return;
269 	}
270 	if( strcasecmp( Var, "Ports" ) == 0 )
271 	{
272 		/* Ports, durch "," getrennt, auf denen der Server
273 		* Verbindungen annehmen soll */
274 		ptr = strtok( Arg, "," );
275 		while( ptr )
276 		{
277 			ngt_TrimStr( ptr );
278 			port = atol( ptr );
279 			if( Conf_ListenPorts_Count + 1 > MAX_LISTEN_PORTS ) Config_Error( LOG_ERR, "Too many listen ports configured. Port %ld ignored.", port );
280 			else
281 			{
282 				if( port > 0 && port < 0xFFFF ) Conf_ListenPorts[Conf_ListenPorts_Count++] = (INT)port;
283 				else Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port );
284 			}
285 			ptr = strtok( NULL, "," );
286 		}
287 		return;
288 	}
289 	if( strcasecmp( Var, "MotdFile" ) == 0 )
290 	{
291 		/* Datei mit der "message of the day" (MOTD) */
292 		strncpy( Conf_MotdFile, Arg, FNAME_LEN - 1 );
293 		Conf_MotdFile[FNAME_LEN - 1] = '\0';
294 		return;
295 	}
296 	if( strcasecmp( Var, "PingTimeout" ) == 0 )
297 	{
298 		/* PING-Timeout */
299 		Conf_PingTimeout = atoi( Arg );
300 		if(( Conf_PingTimeout ) < 5 ) Conf_PingTimeout = 5;
301 		return;
302 	}
303 	if( strcasecmp( Var, "PongTimeout" ) == 0 )
304 	{
305 		/* PONG-Timeout */
306 		Conf_PongTimeout = atoi( Arg );
307 		if(( Conf_PongTimeout ) < 5 ) Conf_PongTimeout = 5;
308 		return;
309 	}
310 	if( strcasecmp( Var, "ConnectRetry" ) == 0 )
311 	{
312 		/* Sekunden zwischen Verbindungsversuchen zu anderen Servern */
313 		Conf_ConnectRetry = atoi( Arg );
314 		if(( Conf_ConnectRetry ) < 5 ) Conf_ConnectRetry = 5;
315 		return;
316 	}
317 		
318 	Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
319 } /* Handle_GLOBAL */
320 
321 
322 GLOBAL VOID Handle_OPERATOR( INT Line, CHAR *Var, CHAR *Arg )
323 {
324 	assert( Line > 0 );
325 	assert( Var != NULL );
326 	assert( Arg != NULL );
327 	assert( Conf_Oper_Count > 0 );
328 
329 	if( strcasecmp( Var, "Name" ) == 0 )
330 	{
331 		/* Name des IRC Operator */
332 		strncpy( Conf_Oper[Conf_Oper_Count - 1].name, Arg, CLIENT_ID_LEN - 1 );
333 		Conf_Oper[Conf_Oper_Count - 1].name[CLIENT_ID_LEN - 1] = '\0';
334 		return;
335 	}
336 	if( strcasecmp( Var, "Password" ) == 0 )
337 	{
338 		/* Passwort des IRC Operator */
339 		strncpy( Conf_Oper[Conf_Oper_Count - 1].pwd, Arg, CLIENT_PASS_LEN - 1 );
340 		Conf_Oper[Conf_Oper_Count - 1].pwd[CLIENT_PASS_LEN - 1] = '\0';
341 		return;
342 	}
343 	
344 	Config_Error( LOG_ERR, "%s, line %d (section \"Operator\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
345 } /* Handle_OPERATOR */
346 
347 
348 GLOBAL VOID Handle_SERVER( INT Line, CHAR *Var, CHAR *Arg )
349 {
350 	INT32 port;
351 	
352 	assert( Line > 0 );
353 	assert( Var != NULL );
354 	assert( Arg != NULL );
355 
356 	if( strcasecmp( Var, "Host" ) == 0 )
357 	{
358 		/* Hostname des Servers */
359 		strncpy( Conf_Server[Conf_Server_Count - 1].host, Arg, HOST_LEN - 1 );
360 		Conf_Server[Conf_Server_Count - 1].host[HOST_LEN - 1] = '\0';
361 		return;
362 	}
363 	if( strcasecmp( Var, "Name" ) == 0 )
364 	{
365 		/* Name des Servers ("Nick") */
366 		strncpy( Conf_Server[Conf_Server_Count - 1].name, Arg, CLIENT_ID_LEN - 1 );
367 		Conf_Server[Conf_Server_Count - 1].name[CLIENT_ID_LEN - 1] = '\0';
368 		return;
369 	}
370 	if( strcasecmp( Var, "Password" ) == 0 )
371 	{
372 		/* Passwort des Servers */
373 		strncpy( Conf_Server[Conf_Server_Count - 1].pwd, Arg, CLIENT_PASS_LEN - 1 );
374 		Conf_Server[Conf_Server_Count - 1].pwd[CLIENT_PASS_LEN - 1] = '\0';
375 		return;
376 	}
377 	if( strcasecmp( Var, "Port" ) == 0 )
378 	{
379 		/* Port, zu dem Verbunden werden soll */
380 		port = atol( Arg );
381 		if( port > 0 && port < 0xFFFF ) Conf_Server[Conf_Server_Count - 1].port = (INT)port;
382 		else Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port );
383 		return;
384 	}
385 	if( strcasecmp( Var, "Group" ) == 0 )
386 	{
387 		/* Server-Gruppe */
388 		Conf_Server[Conf_Server_Count - 1].group = atoi( Arg );
389 		return;
390 	}
391 	
392 	Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
393 } /* Handle_SERVER */
394 
395 
396 LOCAL VOID Validate_Config( VOID )
397 {
398 	/* Konfiguration ueberpruefen */
399 	
400 	if( ! Conf_ServerName[0] )
401 	{
402 		/* Kein Servername konfiguriert */
403 		Config_Error( LOG_ALERT, "No server name configured in \"%s\"!", NGIRCd_ConfFile );
404 		Config_Error( LOG_ALERT, PACKAGE" exiting due to fatal errors!" );
405 		exit( 1 );
406 	}
407 } /* Validate_Config */
408 
409 
410 LOCAL VOID Config_Error( CONST INT Level, CONST CHAR *Format, ... )
411 {
412 	/* Fehler! Auf Console und/oder ins Log schreiben */
413 
414 	CHAR msg[MAX_LOG_MSG_LEN];
415 	va_list ap;
416 
417 	assert( Format != NULL );
418 
419 	/* String mit variablen Argumenten zusammenbauen ... */
420 	va_start( ap, Format );
421 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
422 	va_end( ap );
423 
424 	/* Im "normalen Betrieb" soll der Log-Mechanismus des ngIRCd verwendet
425 	 * werden, beim Testen der Konfiguration jedoch nicht, hier sollen alle
426 	 * Meldungen direkt auf die Konsole ausgegeben werden: */
427 	if( Use_Log ) Log( Level, msg );
428 	else puts( msg );
429 } /* Config_Error */
430 
431 
432 /* -eof- */