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Blob

Date:: Wed Oct 9 16:53:02 2002 UTC
Message:: - verwendete Datentypen aufgeraumt: beispielsweise INT32 ist nun oft ein LONG.
Actions:: History | Blame | Raw File
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: irc.c,v 1.99 2002/10/09 16:53:02 alex Exp $
13  *
14  * irc.c: IRC-Befehle
15  */
16 
17 
18 #include "portab.h"
19 
20 #include "imp.h"
21 #include <assert.h>
22 #include <errno.h>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 
27 #include "ngircd.h"
28 #include "conn.h"
29 #include "client.h"
30 #include "channel.h"
31 #include "resolve.h"
32 #include "conf.h"
33 #include "conn.h"
34 #include "irc-write.h"
35 #include "log.h"
36 #include "messages.h"
37 #include "parse.h"
38 #include "tool.h"
39 
40 #include "exp.h"
41 #include "irc.h"
42 
43 
44 GLOBAL BOOLEAN
45 IRC_MOTD( CLIENT *Client, REQUEST *Req )
46 {
47 	assert( Client != NULL );
48 	assert( Req != NULL );
49 
50 	if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
51 
52 	/* Falsche Anzahl Parameter? */
53 	if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
54 
55 	return IRC_Show_MOTD( Client );
56 } /* IRC_MOTD */
57 
58 
59 GLOBAL BOOLEAN
60 IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
61 {
62 	CLIENT *cl, *from;
63 	CHANNEL *chan;
64 	
65 	assert( Client != NULL );
66 	assert( Req != NULL );
67 
68 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
69 
70 	/* Falsche Anzahl Parameter? */
71 	if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
72 	if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
73 	if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
74 
75 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
76 	else from = Client;
77 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
78 
79 	cl = Client_Search( Req->argv[0] );
80 	if( cl )
81 	{
82 		/* Okay, Ziel ist ein Client. Aber ist es auch ein User? */
83 		if( Client_Type( cl ) != CLIENT_USER ) return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
84 
85 		/* Okay, Ziel ist ein User */
86 		if(( Client_Type( Client ) != CLIENT_SERVER ) && ( strchr( Client_Modes( cl ), 'a' )))
87 		{
88 			/* Ziel-User ist AWAY: Meldung verschicken */
89 			if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( cl ), Client_Away( cl ))) return DISCONNECTED;
90 		}
91 
92 		/* Text senden */
93 		if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from ));
94 		return IRC_WriteStrClientPrefix( cl, from, "PRIVMSG %s :%s", Client_ID( cl ), Req->argv[1] );
95 	}
96 
97 	chan = Channel_Search( Req->argv[0] );
98 	if( chan ) return Channel_Write( chan, from, Client, Req->argv[1] );
99 
100 	return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
101 } /* IRC_PRIVMSG */
102 
103 
104 GLOBAL BOOLEAN
105 IRC_NOTICE( CLIENT *Client, REQUEST *Req )
106 {
107 	CLIENT *to, *from;
108 
109 	assert( Client != NULL );
110 	assert( Req != NULL );
111 
112 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return CONNECTED;
113 
114 	/* Falsche Anzahl Parameter? */
115 	if( Req->argc != 2 ) return CONNECTED;
116 
117 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
118 	else from = Client;
119 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
120 
121 	to = Client_Search( Req->argv[0] );
122 	if(( to ) && ( Client_Type( to ) == CLIENT_USER ))
123 	{
124 		/* Okay, Ziel ist ein User */
125 		return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
126 	}
127 	else return CONNECTED;
128 } /* IRC_NOTICE */
129 
130 
131 GLOBAL BOOLEAN
132 IRC_NAMES( CLIENT *Client, REQUEST *Req )
133 {
134 	CHAR rpl[COMMAND_LEN], *ptr;
135 	CLIENT *target, *from, *c;
136 	CHANNEL *chan;
137 	
138 	assert( Client != NULL );
139 	assert( Req != NULL );
140 
141 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
142 
143 	/* Falsche Anzahl Parameter? */
144 	if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
145 
146 	/* From aus Prefix ermitteln */
147 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
148 	else from = Client;
149 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
150 	
151 	if( Req->argc == 2 )
152 	{
153 		/* an anderen Server forwarden */
154 		target = Client_Search( Req->argv[1] );
155 		if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
156 
157 		if( target != Client_ThisServer( ))
158 		{
159 			/* Ok, anderer Server ist das Ziel: forwarden */
160 			return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] );
161 		}
162 	}
163 
164 	if( Req->argc > 0 )
165 	{
166 		/* bestimmte Channels durchgehen */
167 		ptr = strtok( Req->argv[0], "," );
168 		while( ptr )
169 		{
170 			chan = Channel_Search( ptr );
171 			if( chan )
172 			{
173 				/* Namen ausgeben */
174 				if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
175 			}
176 			if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED;
177 			
178 			/* naechsten Namen ermitteln */
179 			ptr = strtok( NULL, "," );
180 		}
181 		return CONNECTED;
182 	}
183 	
184 	/* alle Channels durchgehen */
185 	chan = Channel_First( );
186 	while( chan )
187 	{
188 		/* Namen ausgeben */
189 		if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED;
190 
191 		/* naechster Channel */
192 		chan = Channel_Next( chan );
193 	}
194 
195 	/* Nun noch alle Clients ausgeben, die in keinem Channel sind */
196 	c = Client_First( );
197 	sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
198 	while( c )
199 	{
200 		if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' )))
201 		{
202 			/* Okay, das ist ein User: anhaengen */
203 			if( rpl[strlen( rpl ) - 1] != ':' ) strcat( rpl, " " );
204 			strcat( rpl, Client_ID( c ));
205 
206 			if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
207 			{
208 				/* Zeile wird zu lang: senden! */
209 				if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
210 				sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" );
211 			}
212 		}
213 
214 		/* naechster Client */
215 		c = Client_Next( c );
216 	}
217 	if( rpl[strlen( rpl ) - 1] != ':')
218 	{
219 		/* es wurden User gefunden */
220 		if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED;
221 	}
222 	
223 	return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" );
224 } /* IRC_NAMES */
225 
226 
227 GLOBAL BOOLEAN
228 IRC_ISON( CLIENT *Client, REQUEST *Req )
229 {
230 	CHAR rpl[COMMAND_LEN];
231 	CLIENT *c;
232 	CHAR *ptr;
233 	INT i;
234 	
235 	assert( Client != NULL );
236 	assert( Req != NULL );
237 
238 	if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
239 
240 	/* Falsche Anzahl Parameter? */
241 	if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
242 
243 	strcpy( rpl, RPL_ISON_MSG );
244 	for( i = 0; i < Req->argc; i++ )
245 	{
246 		ptr = strtok( Req->argv[i], " " );
247 		while( ptr )
248 		{
249 			ngt_TrimStr( ptr );
250 			c = Client_Search( ptr );
251 			if( c && ( Client_Type( c ) == CLIENT_USER ))
252 			{
253 				/* Dieser Nick ist "online" */
254 				strcat( rpl, ptr );
255 				strcat( rpl, " " );
256 			}
257 			ptr = strtok( NULL, " " );
258 		}
259 	}
260 	if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
261 
262 	return IRC_WriteStrClient( Client, "%s", rpl, Client_ID( Client ) );
263 } /* IRC_ISON */
264 
265 
266 GLOBAL BOOLEAN
267 IRC_WHOIS( CLIENT *Client, REQUEST *Req )
268 {
269 	CLIENT *from, *target, *c;
270 	CHAR str[LINE_LEN + 1], *ptr = NULL;
271 	CL2CHAN *cl2chan;
272 	CHANNEL *chan;
273 	
274 	assert( Client != NULL );
275 	assert( Req != NULL );
276 
277 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
278 
279 	/* Falsche Anzahl Parameter? */
280 	if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
281 
282 	/* Client suchen */
283 	c = Client_Search( Req->argv[Req->argc - 1] );
284 	if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] );
285 
286 	/* Empfaenger des WHOIS suchen */
287 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
288 	else from = Client;
289 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
290 	
291 	/* Forwarden an anderen Server? */
292 	if( Req->argc > 1 )
293 	{
294 		/* angegebenen Ziel-Server suchen */
295 		target = Client_Search( Req->argv[1] );
296 		if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] );
297 		ptr = Req->argv[1];
298 	}
299 	else target = Client_ThisServer( );
300 
301 	assert( target != NULL );
302 	
303 	if(( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr );
304 	
305 	/* Nick, User und Name */
306 	if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED;
307 
308 	/* Server */
309 	if( ! IRC_WriteStrClient( from, RPL_WHOISSERVER_MSG, Client_ID( from ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED;
310 
311 	/* Channels */
312 	sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
313 	cl2chan = Channel_FirstChannelOf( c );
314 	while( cl2chan )
315 	{
316 		chan = Channel_GetChannel( cl2chan );
317 		assert( chan != NULL );
318 		
319 		/* Channel-Name anhaengen */
320 		if( str[strlen( str ) - 1] != ':' ) strcat( str, " " );
321 		if( strchr( Channel_UserModes( chan, c ), 'o' )) strcat( str, "@" );
322 		else if( strchr( Channel_UserModes( chan, c ), 'v' )) strcat( str, "+" );
323 		strcat( str, Channel_Name( chan ));
324 
325 		if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
326 		{
327 			/* Zeile wird zu lang: senden! */
328 			if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
329 			sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
330 		}
331 
332 		/* naechstes Mitglied suchen */
333 		cl2chan = Channel_NextChannelOf( c, cl2chan );
334 	}
335 	if( str[strlen( str ) - 1] != ':')
336 	{
337 		/* Es sind noch Daten da, die gesendet werden muessen */
338 		if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
339 	}
340 	
341 	/* IRC-Operator? */
342 	if( Client_HasMode( c, 'o' ))
343 	{
344 		if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
345 	}
346 
347 	/* Idle (nur lokale Clients) */
348 	if( Client_Conn( c ) > NONE )
349 	{
350 		if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED;
351 	}
352 
353 	/* Away? */
354 	if( Client_HasMode( c, 'a' ))
355 	{
356 		if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED;
357 	}
358 
359 	/* End of Whois */
360 	return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
361 } /* IRC_WHOIS */
362 
363 
364 GLOBAL BOOLEAN
365 IRC_WHO( CLIENT *Client, REQUEST *Req )
366 {
367 	BOOLEAN ok, only_ops;
368 	CHAR flags[8], *ptr;
369 	CL2CHAN *cl2chan;
370 	CHANNEL *chan;
371 	CLIENT *c;
372 	
373 	assert( Client != NULL );
374 	assert( Req != NULL );
375 
376 	if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
377 
378 	/* Falsche Anzahl Parameter? */
379 	if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
380 
381 	only_ops = FALSE;
382 	chan = NULL;
383 
384 	if( Req->argc == 2 )
385 	{
386 		/* Nur OPs anzeigen? */
387 		if( strcmp( Req->argv[1], "o" ) == 0 ) only_ops = TRUE;
388 #ifdef STRICT_RFC
389 		else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
390 #endif
391 	}
392 	
393 	if( Req->argc >= 1 )
394 	{
395 		/* wurde ein Channel oder Nick-Mask angegeben? */
396 		chan = Channel_Search( Req->argv[0] );
397 	}
398 
399 	if( chan )
400 	{
401 		/* User eines Channels ausgeben */
402 		if( ! IRC_Send_WHO( Client, chan, only_ops )) return DISCONNECTED;
403 	}
404 
405 	c = Client_First( );
406 	while( c )
407 	{
408 		if(( Client_Type( c ) == CLIENT_USER ) && ( ! strchr( Client_Modes( c ), 'i' )))
409 		{
410 			ok = FALSE;
411 			if( Req->argc == 0 ) ok = TRUE;
412 			else
413 			{
414 				if( strcasecmp( Req->argv[0], Client_ID( c )) == 0 ) ok = TRUE;
415 				else if( strcmp( Req->argv[0], "0" ) == 0 ) ok = TRUE;
416 			}
417 				
418 			if( ok && (( ! only_ops ) || ( strchr( Client_Modes( c ), 'o' ))))
419 			{
420 				/* Flags zusammenbasteln */
421 				strcpy( flags, "H" );
422 				if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" );
423 
424 				/* ausgeben */
425 				cl2chan = Channel_FirstChannelOf( c );
426 				if( cl2chan ) ptr = Channel_Name( Channel_GetChannel( cl2chan ));
427 				else ptr = "*";
428 				if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), ptr, Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
429 			}
430 		}
431 
432 		/* naechster Client */
433 		c = Client_Next( c );
434 	}
435 
436 	if( chan ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Channel_Name( chan ));
437 	else if( Req->argc == 0 ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), "*" );
438 	else return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Req->argv[0] );
439 } /* IRC_WHO */
440 
441 
442 GLOBAL BOOLEAN
443 IRC_USERHOST( CLIENT *Client, REQUEST *Req )
444 {
445 	CHAR rpl[COMMAND_LEN];
446 	CLIENT *c;
447 	INT max, i;
448 
449 	assert( Client != NULL );
450 	assert( Req != NULL );
451 
452 	if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
453 
454 	/* Falsche Anzahl Parameter? */
455 	if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
456 
457 	if( Req->argc > 5 ) max = 5;
458 	else max = Req->argc;
459 	
460 	strcpy( rpl, RPL_USERHOST_MSG );
461 	for( i = 0; i < max; i++ )
462 	{
463 		c = Client_Search( Req->argv[i] );
464 		if( c && ( Client_Type( c ) == CLIENT_USER ))
465 		{
466 			/* Dieser Nick ist "online" */
467 			strcat( rpl, Client_ID( c ));
468 			if( Client_HasMode( c, 'o' )) strcat( rpl, "*" );
469 			strcat( rpl, "=" );
470 			if( Client_HasMode( c, 'a' )) strcat( rpl, "-" );
471 			else strcat( rpl, "+" );
472 			strcat( rpl, Client_User( c ));
473 			strcat( rpl, "@" );
474 			strcat( rpl, Client_Hostname( c ));
475 			strcat( rpl, " " );
476 		}
477 	}
478 	if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0';
479 
480 	return IRC_WriteStrClient( Client, "%s", rpl, Client_ID( Client ) );
481 } /* IRC_USERHOST */
482 
483 
484 GLOBAL BOOLEAN
485 IRC_ERROR( CLIENT *Client, REQUEST *Req )
486 {
487 	assert( Client != NULL );
488 	assert( Req != NULL );
489 
490 	if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
491 	else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
492 
493 	return CONNECTED;
494 } /* IRC_ERROR */
495 
496 
497 GLOBAL BOOLEAN
498 IRC_LUSERS( CLIENT *Client, REQUEST *Req )
499 {
500 	CLIENT *target, *from;
501 	
502 	assert( Client != NULL );
503 	assert( Req != NULL );
504 
505 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
506 
507 	/* Falsche Anzahl Parameter? */
508 	if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
509 
510 	/* Absender ermitteln */
511 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
512 	else from = Client;
513 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
514 
515 	/* An anderen Server forwarden? */
516 	if( Req->argc == 2 )
517 	{
518 		target = Client_Search( Req->argv[1] );
519 		if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
520 		else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] );
521 	}
522 
523 	/* Wer ist der Absender? */
524 	if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
525 	else target = Client;
526 	if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
527 	
528 	IRC_Send_LUSERS( target );
529 
530 	return CONNECTED;
531 } /* IRC_LUSERS */
532 
533 
534 GLOBAL BOOLEAN
535 IRC_LINKS( CLIENT *Client, REQUEST *Req )
536 {
537 	CLIENT *target, *from, *c;
538 	CHAR *mask;
539 	
540 	assert( Client != NULL );
541 	assert( Req != NULL );
542 
543 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
544 
545 	/* Falsche Anzahl Parameter? */
546 	if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
547 
548 	/* Server-Mask ermitteln */
549 	if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1];
550 	else mask = "*";
551 
552 	/* Absender ermitteln */
553 	if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
554 	else from = Client;
555 	if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
556 	
557 	/* An anderen Server forwarden? */
558 	if( Req->argc == 2 )
559 	{
560 		target = Client_Search( Req->argv[0] );
561 		if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
562 		else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] );
563 	}
564 
565 	/* Wer ist der Absender? */
566 	if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
567 	else target = Client;
568 	if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
569 	
570 	c = Client_First( );
571 	while( c )
572 	{
573 		if( Client_Type( c ) == CLIENT_SERVER )
574 		{
575 			if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_TopServer( c ) ? Client_TopServer( c ) : Client_ThisServer( )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
576 		}
577 		c = Client_Next( c );
578 	}
579 	
580 	return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask );
581 } /* IRC_LINKS */
582 
583 
584 GLOBAL BOOLEAN
585 IRC_VERSION( CLIENT *Client, REQUEST *Req )
586 {
587 	CLIENT *target, *prefix;
588 	
589 	assert( Client != NULL );
590 	assert( Req != NULL );
591 
592 	/* Falsche Anzahl Parameter? */
593 	if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
594 
595 	/* Ziel suchen */
596 	if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
597 	else target = Client_ThisServer( );
598 
599 	/* Prefix ermitteln */
600 	if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
601 	else prefix = Client;
602 	if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
603 	
604 	/* An anderen Server weiterleiten? */
605 	if( target != Client_ThisServer( ))
606 	{
607 		if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
608 
609 		/* forwarden */
610 		IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] );
611 		return CONNECTED;
612 	}
613 
614 	/* mit Versionsinfo antworten */
615 	return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE, VERSION, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition( ));
616 } /* IRC_VERSION */
617 
618 
619 GLOBAL BOOLEAN
620 IRC_KILL( CLIENT *Client, REQUEST *Req )
621 {
622 	CLIENT *prefix, *c;
623 	
624 	assert( Client != NULL );
625 	assert( Req != NULL );
626 
627 	if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
628 
629 	/* Falsche Anzahl Parameter? */
630 	if(( Req->argc != 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
631 
632 	prefix = Client_Search( Req->prefix );
633 	if( ! prefix )
634 	{
635 		Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix );
636 		prefix = Client_ThisServer( );
637 	}
638 	
639 	Log( LOG_NOTICE, "Got KILL command from \"%s\" for \"%s\": %s", Client_Mask( prefix ), Req->argv[0], Req->argv[1] );
640 	
641 	/* andere Server benachrichtigen */
642 	IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s", Req->argv[0], Req->argv[1] );
643 
644 	/* haben wir selber einen solchen Client? */
645 	c = Client_Search( Req->argv[0] );
646 	if( c )
647 	{
648 		/* Ja, wir haben einen solchen Client */
649 		if( Client_Conn( c ) != NONE ) Conn_Close( Client_Conn( c ), NULL, Req->argv[1], TRUE );
650 		else Client_Destroy( c, NULL, Req->argv[1], TRUE );
651 	}
652 	else Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] );
653 
654 	return CONNECTED;
655 } /* IRC_KILL */
656 
657 
658 GLOBAL BOOLEAN
659 IRC_ADMIN(CLIENT *Client, REQUEST *Req )
660 {
661 	CLIENT *target, *prefix;
662 
663 	assert( Client != NULL );
664 	assert( Req != NULL );
665 
666 	if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
667 
668 	/* Falsche Anzahl Parameter? */
669 	if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
670 
671 	/* Ziel suchen */
672 	if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
673 	else target = Client_ThisServer( );
674 
675 	/* Prefix ermitteln */
676 	if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix );
677 	else prefix = Client;
678 	if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
679 
680 	/* An anderen Server weiterleiten? */
681 	if( target != Client_ThisServer( ))
682 	{
683 		if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] );
684 
685 		/* forwarden */
686 		IRC_WriteStrClientPrefix( target, prefix, "ADMIN %s", Req->argv[0] );
687 		return CONNECTED;
688 	}
689 
690 	/* mit Versionsinfo antworten */
691 	if( ! IRC_WriteStrClient( Client, RPL_ADMINME_MSG, Client_ID( prefix ), Conf_ServerName )) return DISCONNECTED;
692 	if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC1_MSG, Client_ID( prefix ), Conf_ServerAdmin1 )) return DISCONNECTED;
693 	if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC2_MSG, Client_ID( prefix ), Conf_ServerAdmin2 )) return DISCONNECTED;
694 	if( ! IRC_WriteStrClient( Client, RPL_ADMINEMAIL_MSG, Client_ID( prefix ), Conf_ServerAdminMail )) return DISCONNECTED;
695 
696 	return CONNECTED;
697 } /* IRC_ADMIN */
698 
699 
700 
701 GLOBAL BOOLEAN
702 IRC_Show_MOTD( CLIENT *Client )
703 {
704 	BOOLEAN ok;
705 	CHAR line[127];
706 	FILE *fd;
707 	
708 	assert( Client != NULL );
709 
710 	fd = fopen( Conf_MotdFile, "r" );
711 	if( ! fd )
712 	{
713 		Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno ));
714 		return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) );
715 	}
716 	
717 	IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )));
718 	while( TRUE )
719 	{
720 		if( ! fgets( line, 126, fd )) break;
721 		if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0';
722 		if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line ))
723 		{
724 			fclose( fd );
725 			return FALSE;
726 		}
727 	}
728 	ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) );
729 
730 	fclose( fd );
731 	
732 	return ok;
733 } /* IRC_Show_MOTD */
734 
735 
736 GLOBAL BOOLEAN
737 IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan )
738 {
739 	BOOLEAN is_visible, is_member;
740 	CHAR str[LINE_LEN + 1];
741 	CL2CHAN *cl2chan;
742 	CLIENT *cl;
743 	
744 	assert( Client != NULL );
745 	assert( Chan != NULL );
746 
747 	if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE;
748 	else is_member = FALSE;
749 			 
750 	/* Alle Mitglieder suchen */
751 	sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
752 	cl2chan = Channel_FirstMember( Chan );
753 	while( cl2chan )
754 	{
755 		cl = Channel_GetClient( cl2chan );
756 
757 		if( strchr( Client_Modes( cl ), 'i' )) is_visible = FALSE;
758 		else is_visible = TRUE;
759 
760 		if( is_member || is_visible )
761 		{
762 			/* Nick anhaengen */
763 			if( str[strlen( str ) - 1] != ':' ) strcat( str, " " );
764 			if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strcat( str, "@" );
765 			else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strcat( str, "+" );
766 			strcat( str, Client_ID( cl ));
767 	
768 			if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
769 			{
770 				/* Zeile wird zu lang: senden! */
771 				if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
772 				sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan ));
773 			}
774 		}
775 
776 		/* naechstes Mitglied suchen */
777 		cl2chan = Channel_NextMember( Chan, cl2chan );
778 	}
779 	if( str[strlen( str ) - 1] != ':')
780 	{
781 		/* Es sind noch Daten da, die gesendet werden muessen */
782 		if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
783 	}
784 
785 	return CONNECTED;
786 } /* IRC_Send_NAMES */
787 
788 
789 GLOBAL BOOLEAN
790 IRC_Send_WHO( CLIENT *Client, CHANNEL *Chan, BOOLEAN OnlyOps )
791 {
792 	BOOLEAN is_visible, is_member;
793 	CL2CHAN *cl2chan;
794 	CHAR flags[8];
795 	CLIENT *c;
796 
797 	assert( Client != NULL );
798 	assert( Chan != NULL );
799 
800 	if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE;
801 	else is_member = FALSE;
802 
803 	/* Alle Mitglieder suchen */
804 	cl2chan = Channel_FirstMember( Chan );
805 	while( cl2chan )
806 	{
807 		c = Channel_GetClient( cl2chan );
808 
809 		if( strchr( Client_Modes( c ), 'i' )) is_visible = FALSE;
810 		else is_visible = TRUE;
811 
812 		if( is_member || is_visible )
813 		{
814 			/* Flags zusammenbasteln */
815 			strcpy( flags, "H" );
816 			if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" );
817 			if( strchr( Channel_UserModes( Chan, c ), 'o' )) strcat( flags, "@" );
818 			else if( strchr( Channel_UserModes( Chan, c ), 'v' )) strcat( flags, "+" );
819 			
820 			/* ausgeben */
821 			if(( ! OnlyOps ) || ( strchr( Client_Modes( c ), 'o' )))
822 			{
823 				if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), Channel_Name( Chan ), Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED;
824 			}
825 		}
826 
827 		/* naechstes Mitglied suchen */
828 		cl2chan = Channel_NextMember( Chan, cl2chan );
829 	}
830 	return CONNECTED;
831 } /* IRC_Send_WHO */
832 
833 
834 GLOBAL BOOLEAN
835 IRC_Send_LUSERS( CLIENT *Client )
836 {
837 	LONG cnt;
838 
839 	assert( Client != NULL );
840 
841 	/* Users, Services und Serevr im Netz */
842 	if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
843 
844 	/* IRC-Operatoren im Netz */
845 	cnt = Client_OperCount( );
846 	if( cnt > 0 )
847 	{
848 		if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
849 	}
850 
851 	/* Unbekannt Verbindungen */
852 	cnt = Client_UnknownCount( );
853 	if( cnt > 0 )
854 	{
855 		if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
856 	}
857 
858 	/* Channels im Netz */
859 	if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
860 
861 	/* Channels im Netz */
862 	if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
863 	
864 	return CONNECTED;
865 } /* IRC_Send_LUSERS */
866 
867 
868 /* -eof- */