Made on IRCNow

Blob

Date:: Wed Oct 20 13:47:32 2004 UTC
Message:: Made ngIRCd compile on HP/UX 10.20 with native HP pre-ANSI C compiler and most probably other older C compilers on other systems.
Actions:: History | Blame | Raw File
1 /*
2  * ngIRCd -- The Next Generation IRC Daemon
3  * Copyright (c)2001,2002 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  * Configuration management (reading, parsing & validation)
12  */
13 
14 
15 #include "portab.h"
16 
17 static char UNUSED id[] = "$Id: conf.c,v 1.66 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 <stdlib.h>
29 #include <string.h>
30 #include <strings.h>
31 #include <unistd.h>
32 #include <pwd.h>
33 #include <grp.h>
34 #include <sys/types.h>
35 #include <unistd.h>
36 
37 #ifdef HAVE_CTYPE_H
38 # include <ctype.h>
39 #endif
40 
41 #include "ngircd.h"
42 #include "conn.h"
43 #include "client.h"
44 #include "defines.h"
45 #include "log.h"
46 #include "resolve.h"
47 #include "tool.h"
48 
49 #include "exp.h"
50 #include "conf.h"
51 
52 
53 LOCAL BOOLEAN Use_Log = TRUE;
54 LOCAL CONF_SERVER New_Server;
55 LOCAL INT New_Server_Idx;
56 
57 
58 LOCAL VOID Set_Defaults PARAMS(( BOOLEAN InitServers ));
59 LOCAL VOID Read_Config PARAMS(( VOID ));
60 LOCAL VOID Validate_Config PARAMS(( BOOLEAN TestOnly ));
61 
62 LOCAL VOID Handle_GLOBAL PARAMS(( INT Line, CHAR *Var, CHAR *Arg ));
63 LOCAL VOID Handle_OPERATOR PARAMS(( INT Line, CHAR *Var, CHAR *Arg ));
64 LOCAL VOID Handle_SERVER PARAMS(( INT Line, CHAR *Var, CHAR *Arg ));
65 LOCAL VOID Handle_CHANNEL PARAMS(( INT Line, CHAR *Var, CHAR *Arg ));
66 
67 LOCAL VOID Config_Error PARAMS(( CONST INT Level, CONST CHAR *Format, ... ));
68 
69 LOCAL VOID Init_Server_Struct PARAMS(( CONF_SERVER *Server ));
70 
71 
72 GLOBAL VOID
73 Conf_Init( VOID )
74 {
75 	Set_Defaults( TRUE );
76 	Read_Config( );
77 	Validate_Config( FALSE );
78 } /* Config_Init */
79 
80 
81 GLOBAL VOID
82 Conf_Rehash( VOID )
83 {
84 	Set_Defaults( FALSE );
85 	Read_Config( );
86 	Validate_Config( FALSE );
87 } /* Config_Rehash */
88 
89 
90 GLOBAL INT
91 Conf_Test( VOID )
92 {
93 	/* Read configuration, validate and output it. */
94 
95 	struct passwd *pwd;
96 	struct group *grp;
97 	INT i;
98 
99 	Use_Log = FALSE;
100 	Set_Defaults( TRUE );
101 
102 	Read_Config( );
103 	Validate_Config( TRUE );
104 
105 	/* If stdin is a valid tty wait for a key: */
106 	if( isatty( fileno( stdout )))
107 	{
108 		puts( "OK, press enter to see a dump of your service configuration ..." );
109 		getchar( );
110 	}
111 	else puts( "Ok, dump of your server configuration follows:\n" );
112 
113 	puts( "[GLOBAL]" );
114 	printf( "  Name = %s\n", Conf_ServerName );
115 	printf( "  Info = %s\n", Conf_ServerInfo );
116 	printf( "  Password = %s\n", Conf_ServerPwd );
117 	printf( "  AdminInfo1 = %s\n", Conf_ServerAdmin1 );
118 	printf( "  AdminInfo2 = %s\n", Conf_ServerAdmin2 );
119 	printf( "  AdminEMail = %s\n", Conf_ServerAdminMail );
120 	printf( "  MotdFile = %s\n", Conf_MotdFile );
121 	printf( "  MotdPhrase = %s\n", Conf_MotdPhrase );
122 	printf( "  ChrootDir= %s\n", Conf_Chroot );
123 	printf( "  Ports = " );
124 	for( i = 0; i < Conf_ListenPorts_Count; i++ )
125 	{
126 		if( i != 0 ) printf( ", " );
127 		printf( "%u", Conf_ListenPorts[i] );
128 	}
129 	puts( "" );
130 	printf( "  Listen = %s\n", Conf_ListenAddress );
131 	pwd = getpwuid( Conf_UID );
132 	if( pwd ) printf( "  ServerUID = %s\n", pwd->pw_name );
133 	else printf( "  ServerUID = %ld\n", (LONG)Conf_UID );
134 	grp = getgrgid( Conf_GID );
135 	if( grp ) printf( "  ServerGID = %s\n", grp->gr_name );
136 	else printf( "  ServerGID = %ld\n", (LONG)Conf_GID );
137 	printf( "  PingTimeout = %d\n", Conf_PingTimeout );
138 	printf( "  PongTimeout = %d\n", Conf_PongTimeout );
139 	printf( "  ConnectRetry = %d\n", Conf_ConnectRetry );
140 	printf( "  OperCanUseMode = %s\n", Conf_OperCanMode == TRUE ? "yes" : "no" );
141 	if( Conf_MaxConnections > 0 ) printf( "  MaxConnections = %ld\n", Conf_MaxConnections );
142 	else printf( "  MaxConnections = -1\n" );
143 	if( Conf_MaxConnectionsIP > 0 ) printf( "  MaxConnectionsIP = %d\n", Conf_MaxConnectionsIP );
144 	else printf( "  MaxConnectionsIP = -1\n" );
145 	if( Conf_MaxJoins > 0 ) printf( "  MaxJoins = %d\n", Conf_MaxJoins );
146 	else printf( "  MaxJoins = -1\n" );
147 	puts( "" );
148 
149 	for( i = 0; i < Conf_Oper_Count; i++ )
150 	{
151 		if( ! Conf_Oper[i].name[0] ) continue;
152 		
153 		/* Valid "Operator" section */
154 		puts( "[OPERATOR]" );
155 		printf( "  Name = %s\n", Conf_Oper[i].name );
156 		printf( "  Password = %s\n", Conf_Oper[i].pwd );
157 		puts( "" );
158 	}
159 
160 	for( i = 0; i < MAX_SERVERS; i++ )
161 	{
162 		if( ! Conf_Server[i].name[0] ) continue;
163 		
164 		/* Valid "Server" section */
165 		puts( "[SERVER]" );
166 		printf( "  Name = %s\n", Conf_Server[i].name );
167 		printf( "  Host = %s\n", Conf_Server[i].host );
168 		printf( "  Port = %d\n", Conf_Server[i].port );
169 		printf( "  MyPassword = %s\n", Conf_Server[i].pwd_in );
170 		printf( "  PeerPassword = %s\n", Conf_Server[i].pwd_out );
171 		printf( "  Group = %d\n", Conf_Server[i].group );
172 		puts( "" );
173 	}
174 
175 	for( i = 0; i < Conf_Channel_Count; i++ )
176 	{
177 		if( ! Conf_Channel[i].name[0] ) continue;
178 		
179 		/* Valid "Channel" section */
180 		puts( "[CHANNEL]" );
181 		printf( "  Name = %s\n", Conf_Channel[i].name );
182 		printf( "  Modes = %s\n", Conf_Channel[i].modes );
183 		printf( "  Topic = %s\n", Conf_Channel[i].topic );
184 		puts( "" );
185 	}
186 	
187 	return 0;
188 } /* Conf_Test */
189 
190 
191 GLOBAL VOID
192 Conf_UnsetServer( CONN_ID Idx )
193 {
194 	/* Set next time for next connection attempt, if this is a server
195 	 * link that is (still) configured here. If the server is set as
196 	 * "once", delete it from our configuration.
197 	 * Non-Server-Connections will be silently ignored. */
198 
199 	INT i;
200 
201 	/* Check all our configured servers */
202 	for( i = 0; i < MAX_SERVERS; i++ )
203 	{
204 		if( Conf_Server[i].conn_id != Idx ) continue;
205 
206 		/* Gotcha! Mark server configuration as "unused": */
207 		Conf_Server[i].conn_id = NONE;
208 
209 		if( Conf_Server[i].flags & CONF_SFLAG_ONCE )
210 		{
211 			/* Delete configuration here */
212 			Init_Server_Struct( &Conf_Server[i] );
213 		}
214 		else
215 		{
216 			/* Set time for next connect attempt */
217 			if( Conf_Server[i].lasttry <  time( NULL ) - Conf_ConnectRetry )
218 			{
219 				/* Okay, the connection was established "long enough": */
220 				Conf_Server[i].lasttry = time( NULL ) - Conf_ConnectRetry + RECONNECT_DELAY;
221 			}
222 		}
223 	}
224 } /* Conf_UnsetServer */
225 
226 
227 GLOBAL VOID
228 Conf_SetServer( INT ConfServer, CONN_ID Idx )
229 {
230 	/* Set connection for specified configured server */
231 
232 	assert( ConfServer > NONE );
233 	assert( Idx > NONE );
234 
235 	Conf_Server[ConfServer].conn_id = Idx;
236 } /* Conf_SetServer */
237 
238 
239 GLOBAL INT
240 Conf_GetServer( CONN_ID Idx )
241 {
242 	/* Get index of server in configuration structure */
243 	
244 	INT i = 0;
245 	
246 	assert( Idx > NONE );
247 
248 	for( i = 0; i < MAX_SERVERS; i++ )
249 	{
250 		if( Conf_Server[i].conn_id == Idx ) return i;
251 	}
252 	return NONE;
253 } /* Conf_GetServer */
254 
255 
256 GLOBAL BOOLEAN
257 Conf_EnableServer( CHAR *Name, INT Port )
258 {
259 	/* Enable specified server and adjust port */
260 
261 	INT i;
262 
263 	assert( Name != NULL );
264 
265 	for( i = 0; i < MAX_SERVERS; i++ )
266 	{
267 		if( strcasecmp( Conf_Server[i].name, Name ) == 0 )
268 		{
269 			/* Gotcha! Set port and enable server: */
270 			Conf_Server[i].port = Port;
271 			Conf_Server[i].flags &= ~CONF_SFLAG_DISABLED;
272 			return TRUE;
273 		}
274 	}
275 	return FALSE;
276 } /* Conf_EnableServer */
277 
278 
279 GLOBAL BOOLEAN
280 Conf_DisableServer( CHAR *Name )
281 {
282 	/* Enable specified server and adjust port */
283 
284 	INT i;
285 
286 	assert( Name != NULL );
287 
288 	for( i = 0; i < MAX_SERVERS; i++ )
289 	{
290 		if( strcasecmp( Conf_Server[i].name, Name ) == 0 )
291 		{
292 			/* Gotcha! Disable and disconnect server: */
293 			Conf_Server[i].flags |= CONF_SFLAG_DISABLED;
294 			if( Conf_Server[i].conn_id > NONE ) Conn_Close( Conf_Server[i].conn_id, NULL, "Server link terminated on operator request", TRUE );
295 			return TRUE;
296 		}
297 	}
298 	return FALSE;
299 } /* Conf_DisableServer */
300 
301 
302 GLOBAL BOOLEAN
303 Conf_AddServer( CHAR *Name, INT Port, CHAR *Host, CHAR *MyPwd, CHAR *PeerPwd )
304 {
305 	/* Add new server to configuration */
306 
307 	INT i;
308 
309 	assert( Name != NULL );
310 	assert( Host != NULL );
311 	assert( MyPwd != NULL );
312 	assert( PeerPwd != NULL );
313 
314 	/* Search unused item in server configuration structure */
315 	for( i = 0; i < MAX_SERVERS; i++ )
316 	{
317 		/* Is this item used? */
318 		if( ! Conf_Server[i].name[0] ) break;
319 	}
320 	if( i >= MAX_SERVERS ) return FALSE;
321 
322 	Init_Server_Struct( &Conf_Server[i] );
323 	strlcpy( Conf_Server[i].name, Name, sizeof( Conf_Server[i].name ));
324 	strlcpy( Conf_Server[i].host, Host, sizeof( Conf_Server[i].host ));
325 	strlcpy( Conf_Server[i].pwd_out, MyPwd, sizeof( Conf_Server[i].pwd_out ));
326 	strlcpy( Conf_Server[i].pwd_in, PeerPwd, sizeof( Conf_Server[i].pwd_in ));
327 	Conf_Server[i].port = Port;
328 	Conf_Server[i].flags = CONF_SFLAG_ONCE;
329 	
330 	return TRUE;
331 } /* Conf_AddServer */
332 
333 
334 LOCAL VOID
335 Set_Defaults( BOOLEAN InitServers )
336 {
337 	/* Initialize configuration variables with default values. */
338 
339 	INT i;
340 
341 	strcpy( Conf_ServerName, "" );
342 	sprintf( Conf_ServerInfo, "%s %s", PACKAGE_NAME, PACKAGE_VERSION );
343 	strcpy( Conf_ServerPwd, "" );
344 
345 	strcpy( Conf_ServerAdmin1, "" );
346 	strcpy( Conf_ServerAdmin2, "" );
347 	strcpy( Conf_ServerAdminMail, "" );
348 
349 	strlcpy( Conf_MotdFile, SYSCONFDIR, sizeof( Conf_MotdFile ));
350 	strlcat( Conf_MotdFile, MOTD_FILE, sizeof( Conf_MotdFile ));
351 
352 	strlcpy( Conf_MotdPhrase, MOTD_PHRASE, sizeof( Conf_MotdPhrase ));
353 
354 	strlcpy( Conf_Chroot, CHROOT_DIR, sizeof( Conf_Chroot ));
355 
356 	Conf_ListenPorts_Count = 0;
357 	strcpy( Conf_ListenAddress, "" );
358 
359 	Conf_UID = Conf_GID = 0;
360 	
361 	Conf_PingTimeout = 120;
362 	Conf_PongTimeout = 20;
363 
364 	Conf_ConnectRetry = 60;
365 
366 	Conf_Oper_Count = 0;
367 	Conf_Channel_Count = 0;
368 
369 	Conf_OperCanMode = FALSE;
370 	
371 	Conf_MaxConnections = -1;
372 	Conf_MaxConnectionsIP = 5;
373 	Conf_MaxJoins = 10;
374 
375 	/* Initialize server configuration structures */
376 	if( InitServers ) for( i = 0; i < MAX_SERVERS; Init_Server_Struct( &Conf_Server[i++] ));
377 } /* Set_Defaults */
378 
379 
380 LOCAL VOID
381 Read_Config( VOID )
382 {
383 	/* Read configuration file. */
384 
385 	CHAR section[LINE_LEN], str[LINE_LEN], *var, *arg, *ptr;
386 	INT line, i, n;
387 	FILE *fd;
388 
389 	/* Open configuration file */
390 	fd = fopen( NGIRCd_ConfFile, "r" );
391 	if( ! fd )
392 	{
393 		/* No configuration file found! */
394 		Config_Error( LOG_ALERT, "Can't read configuration \"%s\": %s", NGIRCd_ConfFile, strerror( errno ));
395 		Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
396 		exit( 1 );
397 	}
398 
399 	Config_Error( LOG_INFO, "Reading configuration from \"%s\" ...", NGIRCd_ConfFile );
400 
401 	/* Clean up server configuration structure: mark all already
402 	 * configured servers as "once" so that they are deleted
403 	 * after the next disconnect and delete all unused servers.
404 	 * And delete all servers which are "duplicates" of servers
405 	 * that are already marked as "once" (such servers have been
406 	 * created by the last rehash but are now useless). */
407 	for( i = 0; i < MAX_SERVERS; i++ )
408 	{
409 		if( Conf_Server[i].conn_id == NONE ) Init_Server_Struct( &Conf_Server[i] );
410 		else
411 		{
412 			/* This structure is in use ... */
413 			if( Conf_Server[i].flags & CONF_SFLAG_ONCE )
414 			{
415 				/* Check for duplicates */
416 				for( n = 0; n < MAX_SERVERS; n++ )
417 				{
418 					if( n == i ) continue;
419 
420 					if( Conf_Server[i].conn_id == Conf_Server[n].conn_id )
421 					{
422 						Init_Server_Struct( &Conf_Server[n] );
423 						Log( LOG_DEBUG, "Deleted unused duplicate server %d (kept %d).", n, i );
424 					}
425 				}
426 			}
427 			else
428 			{
429 				/* Mark server as "once" */
430 				Conf_Server[i].flags |= CONF_SFLAG_ONCE;
431 				Log( LOG_DEBUG, "Marked server %d as \"once\"", i );
432 			}
433 		}
434 	}
435 
436 	/* Initialize variables */
437 	line = 0;
438 	strcpy( section, "" );
439 	Init_Server_Struct( &New_Server );
440 	New_Server_Idx = NONE;
441 
442 	/* Read configuration file */
443 	while( TRUE )
444 	{
445 		if( ! fgets( str, LINE_LEN, fd )) break;
446 		ngt_TrimStr( str );
447 		line++;
448 
449 		/* Skip comments and empty lines */
450 		if( str[0] == ';' || str[0] == '#' || str[0] == '\0' ) continue;
451 
452 		/* Is this the beginning of a new section? */
453 		if(( str[0] == '[' ) && ( str[strlen( str ) - 1] == ']' ))
454 		{
455 			strlcpy( section, str, sizeof( section ));
456 			if( strcasecmp( section, "[GLOBAL]" ) == 0 ) continue;
457 			if( strcasecmp( section, "[OPERATOR]" ) == 0 )
458 			{
459 				if( Conf_Oper_Count + 1 > MAX_OPERATORS ) Config_Error( LOG_ERR, "Too many operators configured." );
460 				else
461 				{
462 					/* Initialize new operator structure */
463 					strcpy( Conf_Oper[Conf_Oper_Count].name, "" );
464 					strcpy( Conf_Oper[Conf_Oper_Count].pwd, "" );
465 					Conf_Oper_Count++;
466 				}
467 				continue;
468 			}
469 			if( strcasecmp( section, "[SERVER]" ) == 0 )
470 			{
471 				/* Check if there is already a server to add */
472 				if( New_Server.name[0] )
473 				{
474 					/* Copy data to "real" server structure */
475 					assert( New_Server_Idx > NONE );
476 					Conf_Server[New_Server_Idx] = New_Server;
477 				}
478 
479 				/* Re-init structure for new server */
480 				Init_Server_Struct( &New_Server );
481 
482 				/* Search unused item in server configuration structure */
483 				for( i = 0; i < MAX_SERVERS; i++ )
484 				{
485 					/* Is this item used? */
486 					if( ! Conf_Server[i].name[0] ) break;
487 				}
488 				if( i >= MAX_SERVERS )
489 				{
490 					/* Oops, no free item found! */
491 					Config_Error( LOG_ERR, "Too many servers configured." );
492 					New_Server_Idx = NONE;
493 				}
494 				else New_Server_Idx = i;
495 				continue;
496 			}
497 			if( strcasecmp( section, "[CHANNEL]" ) == 0 )
498 			{
499 				if( Conf_Channel_Count + 1 > MAX_DEFCHANNELS ) Config_Error( LOG_ERR, "Too many pre-defined channels configured." );
500 				else
501 				{
502 					/* Initialize new channel structure */
503 					strcpy( Conf_Channel[Conf_Channel_Count].name, "" );
504 					strcpy( Conf_Channel[Conf_Channel_Count].modes, "" );
505 					strcpy( Conf_Channel[Conf_Channel_Count].topic, "" );
506 					Conf_Channel_Count++;
507 				}
508 				continue;
509 			}
510 			Config_Error( LOG_ERR, "%s, line %d: Unknown section \"%s\"!", NGIRCd_ConfFile, line, section );
511 			section[0] = 0x1;
512 		}
513 		if( section[0] == 0x1 ) continue;
514 
515 		/* Split line into variable name and parameters */
516 		ptr = strchr( str, '=' );
517 		if( ! ptr )
518 		{
519 			Config_Error( LOG_ERR, "%s, line %d: Syntax error!", NGIRCd_ConfFile, line );
520 			continue;
521 		}
522 		*ptr = '\0';
523 		var = str; ngt_TrimStr( var );
524 		arg = ptr + 1; ngt_TrimStr( arg );
525 
526 		if( strcasecmp( section, "[GLOBAL]" ) == 0 ) Handle_GLOBAL( line, var, arg );
527 		else if( strcasecmp( section, "[OPERATOR]" ) == 0 ) Handle_OPERATOR( line, var, arg );
528 		else if( strcasecmp( section, "[SERVER]" ) == 0 ) Handle_SERVER( line, var, arg );
529 		else if( strcasecmp( section, "[CHANNEL]" ) == 0 ) Handle_CHANNEL( line, var, arg );
530 		else Config_Error( LOG_ERR, "%s, line %d: Variable \"%s\" outside section!", NGIRCd_ConfFile, line, var );
531 	}
532 
533 	/* Close configuration file */
534 	fclose( fd );
535 
536 	/* Check if there is still a server to add */
537 	if( New_Server.name[0] )
538 	{
539 		/* Copy data to "real" server structure */
540 		assert( New_Server_Idx > NONE );
541 		Conf_Server[New_Server_Idx] = New_Server;
542 	}
543 	
544 	/* If there are no ports configured use the default: 6667 */
545 	if( Conf_ListenPorts_Count < 1 )
546 	{
547 		Conf_ListenPorts_Count = 1;
548 		Conf_ListenPorts[0] = 6667;
549 	}
550 } /* Read_Config */
551 
552 
553 LOCAL VOID
554 Handle_GLOBAL( INT Line, CHAR *Var, CHAR *Arg )
555 {
556 	struct passwd *pwd;
557 	struct group *grp;
558 	CHAR *ptr;
559 	LONG port;
560 	
561 	assert( Line > 0 );
562 	assert( Var != NULL );
563 	assert( Arg != NULL );
564 	
565 	if( strcasecmp( Var, "Name" ) == 0 )
566 	{
567 		/* Server name */
568 		if( strlcpy( Conf_ServerName, Arg, sizeof( Conf_ServerName )) >= sizeof( Conf_ServerName )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Name\" too long!", NGIRCd_ConfFile, Line );
569 		return;
570 	}
571 	if( strcasecmp( Var, "Info" ) == 0 )
572 	{
573 		/* Info text of server */
574 		if( strlcpy( Conf_ServerInfo, Arg, sizeof( Conf_ServerInfo )) >= sizeof( Conf_ServerInfo )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Info\" too long!", NGIRCd_ConfFile, Line );
575 		return;
576 	}
577 	if( strcasecmp( Var, "Password" ) == 0 )
578 	{
579 		/* Global server password */
580 		if( strlcpy( Conf_ServerPwd, Arg, sizeof( Conf_ServerPwd )) >= sizeof( Conf_ServerPwd )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Password\" too long!", NGIRCd_ConfFile, Line );
581 		return;
582 	}
583 	if( strcasecmp( Var, "AdminInfo1" ) == 0 )
584 	{
585 		/* Administrative info #1 */
586 		if( strlcpy( Conf_ServerAdmin1, Arg, sizeof( Conf_ServerAdmin1 )) >= sizeof( Conf_ServerAdmin1 )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"AdminInfo1\" too long!", NGIRCd_ConfFile, Line );
587 		return;
588 	}
589 	if( strcasecmp( Var, "AdminInfo2" ) == 0 )
590 	{
591 		/* Administrative info #2 */
592 		if( strlcpy( Conf_ServerAdmin2, Arg, sizeof( Conf_ServerAdmin2 )) >= sizeof( Conf_ServerAdmin2 )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"AdminInfo2\" too long!", NGIRCd_ConfFile, Line );
593 		return;
594 	}
595 	if( strcasecmp( Var, "AdminEMail" ) == 0 )
596 	{
597 		/* Administrative email contact */
598 		if( strlcpy( Conf_ServerAdminMail, Arg, sizeof( Conf_ServerAdminMail )) >= sizeof( Conf_ServerAdminMail )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"AdminEMail\" too long!", NGIRCd_ConfFile, Line );
599 		return;
600 	}
601 	if( strcasecmp( Var, "Ports" ) == 0 )
602 	{
603 		/* Ports on that the server should listen. More port numbers
604 		 * must be separated by "," */
605 		ptr = strtok( Arg, "," );
606 		while( ptr )
607 		{
608 			ngt_TrimStr( ptr );
609 			port = atol( ptr );
610 			if( Conf_ListenPorts_Count + 1 > MAX_LISTEN_PORTS ) Config_Error( LOG_ERR, "Too many listen ports configured. Port %ld ignored.", port );
611 			else
612 			{
613 				if( port > 0 && port < 0xFFFF ) Conf_ListenPorts[Conf_ListenPorts_Count++] = (UINT)port;
614 				else Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port );
615 			}
616 			ptr = strtok( NULL, "," );
617 		}
618 		return;
619 	}
620 	if( strcasecmp( Var, "MotdFile" ) == 0 )
621 	{
622 		/* "Message of the day" (MOTD) file */
623 		if( strlcpy( Conf_MotdFile, Arg, sizeof( Conf_MotdFile )) >= sizeof( Conf_MotdFile )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MotdFile\" too long!", NGIRCd_ConfFile, Line );
624 		return;
625 	}
626 	if( strcasecmp( Var, "MotdPhrase" ) == 0 )
627 	{
628 		/* "Message of the day" phrase (instead of file) */
629 		if( strlcpy( Conf_MotdPhrase, Arg, sizeof( Conf_MotdPhrase )) >= sizeof( Conf_MotdPhrase )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MotdPhrase\" too long!", NGIRCd_ConfFile, Line );
630 		return;
631 	}
632 	if( strcasecmp( Var, "ChrootDir" ) == 0 )
633 	{
634 		/* directory for chroot() */
635 		if( strlcpy( Conf_Chroot, Arg, sizeof( Conf_Chroot )) >= sizeof( Conf_Chroot )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"ChrootDir\" too long!", NGIRCd_ConfFile, Line );
636 		return;
637 	}
638 	if( strcasecmp( Var, "ServerUID" ) == 0 )
639 	{
640 		/* UID the daemon should switch to */
641 		pwd = getpwnam( Arg );
642 		if( pwd ) Conf_UID = pwd->pw_uid;
643 		else
644 		{
645 #ifdef HAVE_ISDIGIT
646 			if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"ServerUID\" is not a number!", NGIRCd_ConfFile, Line );
647 			else
648 #endif
649 			Conf_UID = (UINT)atoi( Arg );
650 		}
651 		return;
652 	}
653 	if( strcasecmp( Var, "ServerGID" ) == 0 )
654 	{
655 		/* GID the daemon should use */
656 		grp = getgrnam( Arg );
657 		if( grp ) Conf_GID = grp->gr_gid;
658 		else
659 		{
660 #ifdef HAVE_ISDIGIT
661 			if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"ServerGID\" is not a number!", NGIRCd_ConfFile, Line );
662 			else
663 #endif
664 			Conf_GID = (UINT)atoi( Arg );
665 		}
666 		return;
667 	}
668 	if( strcasecmp( Var, "PingTimeout" ) == 0 )
669 	{
670 		/* PING timeout */
671 		Conf_PingTimeout = atoi( Arg );
672 		if( Conf_PingTimeout < 5 )
673 		{
674 			Config_Error( LOG_WARNING, "%s, line %d: Value of \"PingTimeout\" too low!", NGIRCd_ConfFile, Line );
675 			Conf_PingTimeout = 5;
676 		}
677 		return;
678 	}
679 	if( strcasecmp( Var, "PongTimeout" ) == 0 )
680 	{
681 		/* PONG timeout */
682 		Conf_PongTimeout = atoi( Arg );
683 		if( Conf_PongTimeout < 5 )
684 		{
685 			Config_Error( LOG_WARNING, "%s, line %d: Value of \"PongTimeout\" too low!", NGIRCd_ConfFile, Line );
686 			Conf_PongTimeout = 5;
687 		}
688 		return;
689 	}
690 	if( strcasecmp( Var, "ConnectRetry" ) == 0 )
691 	{
692 		/* Seconds between connection attempts to other servers */
693 		Conf_ConnectRetry = atoi( Arg );
694 		if( Conf_ConnectRetry < 5 )
695 		{
696 			Config_Error( LOG_WARNING, "%s, line %d: Value of \"ConnectRetry\" too low!", NGIRCd_ConfFile, Line );
697 			Conf_ConnectRetry = 5;
698 		}
699 		return;
700 	}
701 	if( strcasecmp( Var, "OperCanUseMode" ) == 0 )
702 	{
703 		/* Are IRC operators allowed to use MODE in channels they aren't Op in? */
704 		if( strcasecmp( Arg, "yes" ) == 0 ) Conf_OperCanMode = TRUE;
705 		else if( strcasecmp( Arg, "true" ) == 0 ) Conf_OperCanMode = TRUE;
706 		else if( atoi( Arg ) != 0 ) Conf_OperCanMode = TRUE;
707 		else Conf_OperCanMode = FALSE;
708 		return;
709 	}
710 	if( strcasecmp( Var, "MaxConnections" ) == 0 )
711 	{
712 		/* Maximum number of connections. Values <= 0 are equal to "no limit". */
713 #ifdef HAVE_ISDIGIT
714 		if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MaxConnections\" is not a number!", NGIRCd_ConfFile, Line );
715 		else
716 #endif
717 		Conf_MaxConnections = atol( Arg );
718 		return;
719 	}
720 	if( strcasecmp( Var, "MaxConnectionsIP" ) == 0 )
721 	{
722 		/* Maximum number of simoultanous connections from one IP. Values <= 0 are equal to "no limit". */
723 #ifdef HAVE_ISDIGIT
724 		if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MaxConnectionsIP\" is not a number!", NGIRCd_ConfFile, Line );
725 		else
726 #endif
727 		Conf_MaxConnectionsIP = atoi( Arg );
728 		return;
729 	}
730 	if( strcasecmp( Var, "MaxJoins" ) == 0 )
731 	{
732 		/* Maximum number of channels a user can join. Values <= 0 are equal to "no limit". */
733 #ifdef HAVE_ISDIGIT
734 		if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MaxJoins\" is not a number!", NGIRCd_ConfFile, Line );
735 		else
736 #endif
737 		Conf_MaxJoins = atoi( Arg );
738 		return;
739 	}
740 	if( strcasecmp( Var, "Listen" ) == 0 )
741 	{
742 		/* IP-Address to bind sockets */
743 		if( strlcpy( Conf_ListenAddress, Arg, sizeof( Conf_ListenAddress )) >= sizeof( Conf_ListenAddress ))
744 		{
745 			Config_Error( LOG_WARNING, "%s, line %d: Value of \"Listen\" too long!", NGIRCd_ConfFile, Line );
746 		}
747 		return;
748 	}
749 
750 	Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
751 } /* Handle_GLOBAL */
752 
753 
754 LOCAL VOID
755 Handle_OPERATOR( INT Line, CHAR *Var, CHAR *Arg )
756 {
757 	assert( Line > 0 );
758 	assert( Var != NULL );
759 	assert( Arg != NULL );
760 	assert( Conf_Oper_Count > 0 );
761 
762 	if( strcasecmp( Var, "Name" ) == 0 )
763 	{
764 		/* Name of IRC operator */
765 		if( strlcpy( Conf_Oper[Conf_Oper_Count - 1].name, Arg, sizeof( Conf_Oper[Conf_Oper_Count - 1].name )) >= sizeof( Conf_Oper[Conf_Oper_Count - 1].name )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Name\" too long!", NGIRCd_ConfFile, Line );
766 		return;
767 	}
768 	if( strcasecmp( Var, "Password" ) == 0 )
769 	{
770 		/* Password of IRC operator */
771 		if( strlcpy( Conf_Oper[Conf_Oper_Count - 1].pwd, Arg, sizeof( Conf_Oper[Conf_Oper_Count - 1].pwd )) >= sizeof( Conf_Oper[Conf_Oper_Count - 1].pwd )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Password\" too long!", NGIRCd_ConfFile, Line );
772 		return;
773 	}
774 	
775 	Config_Error( LOG_ERR, "%s, line %d (section \"Operator\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
776 } /* Handle_OPERATOR */
777 
778 
779 LOCAL VOID
780 Handle_SERVER( INT Line, CHAR *Var, CHAR *Arg )
781 {
782 	LONG port;
783 	
784 	assert( Line > 0 );
785 	assert( Var != NULL );
786 	assert( Arg != NULL );
787 
788 	/* Ignore server block if no space is left in server configuration structure */
789 	if( New_Server_Idx <= NONE ) return;
790 
791 	if( strcasecmp( Var, "Host" ) == 0 )
792 	{
793 		/* Hostname of the server */
794 		if( strlcpy( New_Server.host, Arg, sizeof( New_Server.host )) >= sizeof( New_Server.host )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Host\" too long!", NGIRCd_ConfFile, Line );
795 		return;
796 	}
797 	if( strcasecmp( Var, "Name" ) == 0 )
798 	{
799 		/* Name of the server ("Nick"/"ID") */
800 		if( strlcpy( New_Server.name, Arg, sizeof( New_Server.name )) >= sizeof( New_Server.name )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Name\" too long!", NGIRCd_ConfFile, Line );
801 		return;
802 	}
803 	if( strcasecmp( Var, "MyPassword" ) == 0 )
804 	{
805 		/* Password of this server which is sent to the peer */
806 		if( strlcpy( New_Server.pwd_in, Arg, sizeof( New_Server.pwd_in )) >= sizeof( New_Server.pwd_in )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"MyPassword\" too long!", NGIRCd_ConfFile, Line );
807 		return;
808 	}
809 	if( strcasecmp( Var, "PeerPassword" ) == 0 )
810 	{
811 		/* Passwort of the peer which must be received */
812 		if( strlcpy( New_Server.pwd_out, Arg, sizeof( New_Server.pwd_out )) >= sizeof( New_Server.pwd_out )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"PeerPassword\" too long!", NGIRCd_ConfFile, Line );
813 		return;
814 	}
815 	if( strcasecmp( Var, "Port" ) == 0 )
816 	{
817 		/* Port to which this server should connect */
818 		port = atol( Arg );
819 		if( port > 0 && port < 0xFFFF ) New_Server.port = (INT)port;
820 		else Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Illegal port number %ld!", NGIRCd_ConfFile, Line, port );
821 		return;
822 	}
823 	if( strcasecmp( Var, "Group" ) == 0 )
824 	{
825 		/* Server group */
826 #ifdef HAVE_ISDIGIT
827 		if( ! isdigit( (INT)*Arg )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Group\" is not a number!", NGIRCd_ConfFile, Line );
828 		else
829 #endif
830 		New_Server.group = atoi( Arg );
831 		return;
832 	}
833 	
834 	Config_Error( LOG_ERR, "%s, line %d (section \"Server\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
835 } /* Handle_SERVER */
836 
837 
838 LOCAL VOID
839 Handle_CHANNEL( INT Line, CHAR *Var, CHAR *Arg )
840 {
841 	assert( Line > 0 );
842 	assert( Var != NULL );
843 	assert( Arg != NULL );
844 
845 	if( strcasecmp( Var, "Name" ) == 0 )
846 	{
847 		/* Name of the channel */
848 		if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].name, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].name )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].name )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Name\" too long!", NGIRCd_ConfFile, Line );
849 		return;
850 	}
851 	if( strcasecmp( Var, "Modes" ) == 0 )
852 	{
853 		/* Initial modes */
854 		if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].modes, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].modes )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].modes )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Modes\" too long!", NGIRCd_ConfFile, Line );
855 		return;
856 	}
857 	if( strcasecmp( Var, "Topic" ) == 0 )
858 	{
859 		/* Initial topic */
860 		if( strlcpy( Conf_Channel[Conf_Channel_Count - 1].topic, Arg, sizeof( Conf_Channel[Conf_Channel_Count - 1].topic )) >= sizeof( Conf_Channel[Conf_Channel_Count - 1].topic )) Config_Error( LOG_WARNING, "%s, line %d: Value of \"Topic\" too long!", NGIRCd_ConfFile, Line );
861 		return;
862 	}
863 
864 	Config_Error( LOG_ERR, "%s, line %d (section \"Channel\"): Unknown variable \"%s\"!", NGIRCd_ConfFile, Line, Var );
865 } /* Handle_CHANNEL */
866 
867 
868 LOCAL VOID
869 Validate_Config( BOOLEAN Configtest )
870 {
871 	/* Validate configuration settings. */
872 
873 #ifdef DEBUG
874 	INT i, servers, servers_once;
875 #endif
876 
877 	if( ! Conf_ServerName[0] )
878 	{
879 		/* No server name configured! */
880 		Config_Error( LOG_ALERT, "No server name configured in \"%s\" (section 'Global': 'Name')!", NGIRCd_ConfFile );
881 		if( ! Configtest )
882 		{
883 			Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
884 			exit( 1 );
885 		}
886 	}
887 	
888 	if( Conf_ServerName[0] && ! strchr( Conf_ServerName, '.' ))
889 	{
890 		/* No dot in server name! */
891 		Config_Error( LOG_ALERT, "Invalid server name configured in \"%s\" (section 'Global': 'Name'): Dot missing!", NGIRCd_ConfFile );
892 		if( ! Configtest )
893 		{
894 			Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
895 			exit( 1 );
896 		}
897 	}
898 
899 #ifdef STRICT_RFC
900 	if( ! Conf_ServerAdminMail[0] )
901 	{
902 		/* No administrative contact configured! */
903 		Config_Error( LOG_ALERT, "No administrator email address configured in \"%s\" ('AdminEMail')!", NGIRCd_ConfFile );
904 		if( ! Configtest )
905 		{
906 			Config_Error( LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME );
907 			exit( 1 );
908 		}
909 	}
910 #endif
911 
912 	if( ! Conf_ServerAdmin1[0] && ! Conf_ServerAdmin2[0] && ! Conf_ServerAdminMail[0] )
913 	{
914 		/* No administrative information configured! */
915 		Config_Error( LOG_WARNING, "No administrative information configured but required by RFC!" );
916 	}
917 #ifdef FD_SETSIZE	
918 	if(( Conf_MaxConnections > (LONG)FD_SETSIZE ) || ( Conf_MaxConnections < 1 ))
919 	{
920 		Conf_MaxConnections = (LONG)FD_SETSIZE;
921 		Config_Error( LOG_ERR, "Setting MaxConnections to %ld, select() can't handle more file descriptors!", Conf_MaxConnections );
922 	}
923 #else
924 	Config_Error( LOG_WARN, "Don't know how many file descriptors select() can handle on this system, don't set MaxConnections too high!" );
925 #endif
926 
927 #ifdef DEBUG
928 	servers = servers_once = 0;
929 	for( i = 0; i < MAX_SERVERS; i++ )
930 	{
931 		if( Conf_Server[i].name[0] )
932 		{
933 			servers++;
934 			if( Conf_Server[i].flags & CONF_SFLAG_ONCE ) servers_once++;
935 		}
936 	}
937 	Log( LOG_DEBUG, "Configuration: Operators=%d, Servers=%d[%d], Channels=%d", Conf_Oper_Count, servers, servers_once, Conf_Channel_Count );
938 #endif
939 } /* Validate_Config */
940 
941 
942 #ifdef PROTOTYPES
943 LOCAL VOID Config_Error( CONST INT Level, CONST CHAR *Format, ... )
944 #else
945 LOCAL VOID Config_Error( Level, Format, va_alist )
946 CONST INT Level;
947 CONST CHAR *Format;
948 va_dcl
949 #endif
950 {
951 	/* Error! Write to console and/or logfile. */
952 
953 	CHAR msg[MAX_LOG_MSG_LEN];
954 	va_list ap;
955 
956 	assert( Format != NULL );
957 
958 #ifdef PROTOTYPES
959 	va_start( ap, Format );
960 #else
961 	va_start( ap );
962 #endif
963 	vsnprintf( msg, MAX_LOG_MSG_LEN, Format, ap );
964 	va_end( ap );
965 	
966 	/* During "normal operations" the log functions of the daemon should
967 	 * be used, but during testing of the configuration file, all messages
968 	 * should go directly to the console: */
969 	if( Use_Log ) Log( Level, "%s", msg );
970 	else puts( msg );
971 } /* Config_Error */
972 
973 
974 LOCAL VOID
975 Init_Server_Struct( CONF_SERVER *Server )
976 {
977 	/* Initialize server configuration structur to default values */
978 
979 	assert( Server != NULL );
980 
981 	strcpy( Server->host, "" );
982 	strcpy( Server->ip, "" );
983 	strcpy( Server->name, "" );
984 	strcpy( Server->pwd_in, "" );
985 	strcpy( Server->pwd_out, "" );
986 	Server->port = 0;
987 	Server->group = NONE;
988 	Server->lasttry = time( NULL ) - Conf_ConnectRetry + STARTUP_DELAY;
989 	Server->res_stat = NULL;
990 	if( NGIRCd_Passive ) Server->flags = CONF_SFLAG_DISABLED;
991 	else Server->flags = 0;
992 	Server->conn_id = NONE;
993 } /* Init_Server_Struct */
994 
995 
996 /* -eof- */