src/ngircd/irc-login.c

   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  * Login and logout
  12  */
  13
  14
  15 #include "portab.h"
  16
  17 static char UNUSED id[] = "$Id: irc-login.c,v 1.49.2.1 2006/12/02 13:54:10 fw Exp $";
  18
  19 #include "imp.h"
  20 #include <assert.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <strings.h>
  25
  26 #include "ngircd.h"
  27 #include "resolve.h"
  28 #include "conn-func.h"
  29 #include "conf.h"
  30 #include "client.h"
  31 #include "channel.h"
  32 #include "log.h"
  33 #include "messages.h"
  34 #include "parse.h"
  35 #include "irc.h"
  36 #include "irc-info.h"
  37 #include "irc-write.h"
  38 #include "cvs-version.h"
  39
  40 #include "exp.h"
  41 #include "irc-login.h"
  42
  43
  44 static bool Hello_User PARAMS(( CLIENT *Client ));
  45 static void Kill_Nick PARAMS(( char *Nick, char *Reason ));
  46
  47 /**
  48  * Handler for the IRC command "PASS".
  49  * See RFC 2813 section 4.1.1, and RFC 2812 section 3.1.1.
  50  */
  51 GLOBAL bool
  52 IRC_PASS( CLIENT *Client, REQUEST *Req )
  53 {
  54         assert( Client != NULL );
  55         assert( Req != NULL );
  56
  57         /* Return an error if this is not a local client */
  58         if (Client_Conn(Client) <= NONE)
  59                 return IRC_WriteStrClient(Client, ERR_UNKNOWNCOMMAND_MSG,
  60                                         Client_ID(Client), Req->command);
  61
  62         if (Client_Type(Client) == CLIENT_UNKNOWN && Req->argc == 1) {
  63                 /* Not yet registered "unknown" connection, PASS with one
  64                  * argument: either a regular client, service, or server
  65                  * using the old RFC 1459 section 4.1.1 syntax. */
  66                 LogDebug("Connection %d: got PASS command ...",
  67                          Client_Conn(Client));
  68
  69                 Client_SetPassword( Client, Req->argv[0] );
  70
  71                 Client_SetType( Client, CLIENT_GOTPASS );
  72                 return CONNECTED;
  73         }
  74         else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
  75         {
  76                 char c2, c4, *type, *impl, *serverver, *flags, *ptr, *ircflags;
  77                 int protohigh, protolow;
  78
  79                 /* noch nicht registrierte Server-Verbindung */
  80                 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
  81
  82                 /* Passwort speichern */
  83                 Client_SetPassword( Client, Req->argv[0] );
  84
  85                 /* Protokollversion ermitteln */
  86                 if( strlen( Req->argv[1] ) >= 4 )
  87                 {
  88                         c2 = Req->argv[1][2];
  89                         c4 = Req->argv[1][4];
  90
  91                         Req->argv[1][4] = '\0';
  92                         protolow = atoi( &Req->argv[1][2] );
  93                         Req->argv[1][2] = '\0';
  94                         protohigh = atoi( Req->argv[1] );
  95
  96                         Req->argv[1][2] = c2;
  97                         Req->argv[1][4] = c4;
  98                 }
  99                 else protohigh = protolow = 0;
 100
 101                 /* Protokoll-Typ */
 102                 if( strlen( Req->argv[1] ) > 4 ) type = &Req->argv[1][4];
 103                 else type = NULL;
 104
 105                 /* IRC-Flags (nach RFC 2813) */
 106                 if( Req->argc >= 4 ) ircflags = Req->argv[3];
 107                 else ircflags = "";
 108
 109                 /* Implementation, Version und ngIRCd-Flags */
 110                 impl = Req->argv[2];
 111                 ptr = strchr(impl, '|');
 112                 if (ptr)
 113                         *ptr = '\0';
 114
 115                 if (type && (strcmp( type, PROTOIRCPLUS ) == 0)) {
 116                         /* The peer seems to be a server which supports the
 117                          * IRC+ protocol (see doc/Protocol.txt). */
 118                         serverver = ptr + 1;
 119                         flags = strchr(serverver, ':');
 120                         if (flags) {
 121                                 *flags = '\0';
 122                                 flags++;
 123                         } else
 124                                 flags = "";
 125                         Log(LOG_INFO,
 126                         "Peer announces itself as %s-%s using protocol %d.%d/IRC+ (flags: \"%s\").", impl, serverver, protohigh, protolow, flags );
 127                 } else {
 128                         /* The peer seems to be a server supporting the
 129                          * "original" IRC protocol (RFC 2813). */
 130                         serverver = "";
 131                         if (strchr(ircflags, 'Z' ))
 132                                 flags = "Z";
 133                         else
 134                                 flags = "";
 135                         Log(LOG_INFO,
 136                                 "Peer announces itself as \"%s\" using protocol %d.%d (flags: \"%s\").", impl, protohigh, protolow, flags );
 137                 }
 138
 139                 Client_SetType( Client, CLIENT_GOTPASSSERVER );
 140                 Client_SetFlags( Client, flags );
 141
 142                 return CONNECTED;
 143         }
 144         else if(( Client_Type( Client ) == CLIENT_UNKNOWN  ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
 145         {
 146                 /* Falsche Anzahl Parameter? */
 147                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 148         }
 149         else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
 150 } /* IRC_PASS */
 151
 152
 153 /**
 154  * IRC "NICK" command.
 155  * This function implements the IRC command "NICK" which is used to register
 156  * with the server, to change already registered nicknames and to introduce
 157  * new users which are connected to other servers.
 158  */
 159 GLOBAL bool
 160 IRC_NICK( CLIENT *Client, REQUEST *Req )
 161 {
 162         CLIENT *intr_c, *target, *c;
 163         char *modes;
 164
 165         assert( Client != NULL );
 166         assert( Req != NULL );
 167
 168 #ifndef STRICT_RFC
 169         /* Some IRC clients, for example BitchX, send the NICK and USER
 170          * commands in the wrong order ... */
 171         if( Client_Type( Client ) == CLIENT_UNKNOWN
 172             || Client_Type( Client ) == CLIENT_GOTPASS
 173             || Client_Type( Client ) == CLIENT_GOTNICK
 174             || Client_Type( Client ) == CLIENT_GOTUSER
 175             || Client_Type( Client ) == CLIENT_USER
 176             || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
 177 #else
 178         if( Client_Type( Client ) == CLIENT_UNKNOWN
 179             || Client_Type( Client ) == CLIENT_GOTPASS
 180             || Client_Type( Client ) == CLIENT_GOTNICK
 181             || Client_Type( Client ) == CLIENT_USER
 182             || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
 183 #endif
 184         {
 185                 /* User registration or change of nickname */
 186
 187                 /* Wrong number of arguments? */
 188                 if( Req->argc != 1 )
 189                         return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG,
 190                                                    Client_ID( Client ),
 191                                                    Req->command );
 192
 193                 /* Search "target" client */
 194                 if( Client_Type( Client ) == CLIENT_SERVER )
 195                 {
 196                         target = Client_Search( Req->prefix );
 197                         if( ! target )
 198                                 return IRC_WriteStrClient( Client,
 199                                                            ERR_NOSUCHNICK_MSG,
 200                                                            Client_ID( Client ),
 201                                                            Req->argv[0] );
 202                 }
 203                 else
 204                 {
 205                         /* Is this a restricted client? */
 206                         if( Client_HasMode( Client, 'r' ))
 207                                 return IRC_WriteStrClient( Client,
 208                                                            ERR_RESTRICTED_MSG,
 209                                                            Client_ID( Client ));
 210
 211                         target = Client;
 212                 }
 213
 214 #ifndef STRICT_RFC
 215                 /* If the clients tries to change to its own nickname we won't
 216                  * do anything. This is how the original ircd behaves and some
 217                  * clients (for example Snak) expect it to be like this.
 218                  * But I doubt that this is "really the right thing" ... */
 219                 if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 )
 220                         return CONNECTED;
 221 #endif
 222
 223                 /* Check that the new nickname is available. Special case:
 224                  * the client only changes from/to upper to lower case. */
 225                 if( strcasecmp( Client_ID( target ), Req->argv[0] ) != 0 )
 226                 {
 227                         if( ! Client_CheckNick( target, Req->argv[0] ))
 228                                 return CONNECTED;
 229                 }
 230
 231                 if(( Client_Type( target ) != CLIENT_USER )
 232                    && ( Client_Type( target ) != CLIENT_SERVER ))
 233                 {
 234                         /* New client */
 235                         Log( LOG_DEBUG, "Connection %d: got valid NICK command ...",
 236                              Client_Conn( Client ));
 237
 238                         /* Register new nickname of this client */
 239                         Client_SetID( target, Req->argv[0] );
 240
 241                         /* If we received a valid USER command already then
 242                          * register the new client! */
 243                         if( Client_Type( Client ) == CLIENT_GOTUSER )
 244                                 return Hello_User( Client );
 245                         else
 246                                 Client_SetType( Client, CLIENT_GOTNICK );
 247                 }
 248                 else
 249                 {
 250                         /* Nickname change */
 251                         if( Client_Conn( target ) > NONE )
 252                         {
 253                                 /* Local client */
 254                                 Log( LOG_INFO,
 255                                      "User \"%s\" changed nick (connection %d): \"%s\" -> \"%s\".",
 256                                      Client_Mask( target ), Client_Conn( target ),
 257                                      Client_ID( target ), Req->argv[0] );
 258                         }
 259                         else
 260                         {
 261                                 /* Remote client */
 262                                 Log( LOG_DEBUG,
 263                                      "User \"%s\" changed nick: \"%s\" -> \"%s\".",
 264                                      Client_Mask( target ), Client_ID( target ),
 265                                      Req->argv[0] );
 266                         }
 267
 268                         /* Inform all users and servers (which have to know)
 269                          * of this nickname change */
 270                         if( Client_Type( Client ) == CLIENT_USER )
 271                                 IRC_WriteStrClientPrefix( Client, Client,
 272                                                           "NICK :%s",
 273                                                           Req->argv[0] );
 274                         IRC_WriteStrServersPrefix( Client, target,
 275                                                    "NICK :%s", Req->argv[0] );
 276                         IRC_WriteStrRelatedPrefix( target, target, false,
 277                                                    "NICK :%s", Req->argv[0] );
 278
 279                         /* Register old nickname for WHOWAS queries */
 280                         Client_RegisterWhowas( target );
 281
 282                         /* Save new nickname */
 283                         Client_SetID( target, Req->argv[0] );
 284
 285                         IRC_SetPenalty( target, 2 );
 286                 }
 287
 288                 return CONNECTED;
 289         }
 290         else if( Client_Type( Client ) == CLIENT_SERVER )
 291         {
 292                 /* Server introduces new client */
 293
 294                 /* Falsche Anzahl Parameter? */
 295                 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 296
 297                 /* Nick ueberpruefen */
 298                 c = Client_Search( Req->argv[0] );
 299                 if( c )
 300                 {
 301                         /* Der neue Nick ist auf diesem Server bereits registriert:
 302                          * sowohl der neue, als auch der alte Client muessen nun
 303                          * disconnectiert werden. */
 304                         Log( LOG_ERR, "Server %s introduces already registered nick \"%s\"!", Client_ID( Client ), Req->argv[0] );
 305                         Kill_Nick( Req->argv[0], "Nick collision" );
 306                         return CONNECTED;
 307                 }
 308
 309                 /* Server, zu dem der Client connectiert ist, suchen */
 310                 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
 311                 if( ! intr_c )
 312                 {
 313                         Log( LOG_ERR, "Server %s introduces nick \"%s\" on unknown server!?", Client_ID( Client ), Req->argv[0] );
 314                         Kill_Nick( Req->argv[0], "Unknown server" );
 315                         return CONNECTED;
 316                 }
 317
 318                 /* Neue Client-Struktur anlegen */
 319                 c = Client_NewRemoteUser( intr_c, Req->argv[0], atoi( Req->argv[1] ), Req->argv[2], Req->argv[3], atoi( Req->argv[4] ), Req->argv[5] + 1, Req->argv[6], true);
 320                 if( ! c )
 321                 {
 322                         /* Eine neue Client-Struktur konnte nicht angelegt werden.
 323                          * Der Client muss disconnectiert werden, damit der Netz-
 324                          * status konsistent bleibt. */
 325                         Log( LOG_ALERT, "Can't create client structure! (on connection %d)", Client_Conn( Client ));
 326                         Kill_Nick( Req->argv[0], "Server error" );
 327                         return CONNECTED;
 328                 }
 329
 330                 modes = Client_Modes( c );
 331                 if( *modes ) Log( LOG_DEBUG, "User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).", Client_Mask( c ), modes, Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
 332                 else Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_Mask( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
 333
 334                 /* Andere Server, ausser dem Introducer, informieren */
 335                 IRC_WriteStrServersPrefix( Client, Client, "NICK %s %d %s %s %d %s :%s", Req->argv[0], atoi( Req->argv[1] ) + 1, Req->argv[2], Req->argv[3], Client_MyToken( intr_c ), Req->argv[5], Req->argv[6] );
 336
 337                 return CONNECTED;
 338         }
 339         else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
 340 } /* IRC_NICK */
 341
 342
 343 GLOBAL bool
 344 IRC_USER( CLIENT *Client, REQUEST *Req )
 345 {
 346 #ifdef IDENTAUTH
 347         char *ptr;
 348 #endif
 349
 350         assert( Client != NULL );
 351         assert( Req != NULL );
 352
 353 #ifndef STRICT_RFC
 354         if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
 355 #else
 356         if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
 357 #endif
 358         {
 359                 /* Wrong number of parameters? */
 360                 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 361
 362                 /* User name */
 363 #ifdef IDENTAUTH
 364                 ptr = Client_User( Client );
 365                 if( ! ptr || ! *ptr || *ptr == '~' ) Client_SetUser( Client, Req->argv[0], false );
 366 #else
 367                 Client_SetUser( Client, Req->argv[0], false );
 368 #endif
 369
 370                 /* "Real name" or user info text: Don't set it to the empty string, the original ircd
 371                  * can't deal with such "real names" (e. g. "USER user * * :") ... */
 372                 if( *Req->argv[3] ) Client_SetInfo( Client, Req->argv[3] );
 373                 else Client_SetInfo( Client, "-" );
 374
 375                 Log( LOG_DEBUG, "Connection %d: got valid USER command ...", Client_Conn( Client ));
 376                 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
 377                 else Client_SetType( Client, CLIENT_GOTUSER );
 378                 return CONNECTED;
 379         }
 380         else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
 381         {
 382                 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
 383         }
 384         else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
 385 } /* IRC_USER */
 386
 387
 388 GLOBAL bool
 389 IRC_QUIT( CLIENT *Client, REQUEST *Req )
 390 {
 391         CLIENT *target;
 392         char quitmsg[LINE_LEN];
 393
 394         assert( Client != NULL );
 395         assert( Req != NULL );
 396
 397         /* Wrong number of arguments? */
 398         if( Req->argc > 1 )
 399                 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
 400
 401         if (Req->argc == 1)
 402                 strlcpy(quitmsg, Req->argv[0], sizeof quitmsg);
 403
 404         if ( Client_Type( Client ) == CLIENT_SERVER )
 405         {
 406                 /* Server */
 407                 target = Client_Search( Req->prefix );
 408                 if( ! target )
 409                 {
 410                         /* Den Client kennen wir nicht (mehr), also nichts zu tun. */
 411                         Log( LOG_WARNING, "Got QUIT from %s for unknown client!?", Client_ID( Client ));
 412                         return CONNECTED;
 413                 }
 414
 415                 Client_Destroy( target, "Got QUIT command.", Req->argc == 1 ? quitmsg : NULL, true);
 416
 417                 return CONNECTED;
 418         }
 419         else
 420         {
 421                 if (Req->argc == 1 && quitmsg[0] != '\"') {
 422                         /* " " to avoid confusion */
 423                         strlcpy(quitmsg, "\"", sizeof quitmsg);
 424                         strlcat(quitmsg, Req->argv[0], sizeof quitmsg-1);
 425                         strlcat(quitmsg, "\"", sizeof quitmsg );
 426                 }
 427
 428                 /* User, Service, oder noch nicht registriert */
 429                 Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argc == 1 ? quitmsg : NULL, true);
 430
 431                 return DISCONNECTED;
 432         }
 433 } /* IRC_QUIT */
 434
 435
 436 GLOBAL bool
 437 IRC_PING(CLIENT *Client, REQUEST *Req)
 438 {
 439         CLIENT *target, *from;
 440
 441         assert(Client != NULL);
 442         assert(Req != NULL);
 443
 444         /* Wrong number of arguments? */
 445         if (Req->argc < 1)
 446                 return IRC_WriteStrClient(Client, ERR_NOORIGIN_MSG,
 447                                           Client_ID(Client));
 448 #ifdef STRICT_RFC
 449         /* Don't ignore additional arguments when in "strict" mode */
 450         if (Req->argc > 2)
 451                  return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 452                                            Client_ID(Client), Req->command);
 453 #endif
 454
 455         if (Req->argc > 1) {
 456                 /* A target has been specified ... */
 457                 target = Client_Search(Req->argv[1]);
 458
 459                 if (!target || Client_Type(target) != CLIENT_SERVER)
 460                         return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 461                                         Client_ID(Client), Req->argv[1]);
 462
 463                 if (target != Client_ThisServer()) {
 464                         /* Ok, we have to forward the PING */
 465                         if (Client_Type(Client) == CLIENT_SERVER)
 466                                 from = Client_Search(Req->prefix);
 467                         else
 468                                 from = Client;
 469                         if (!from)
 470                                 return IRC_WriteStrClient(Client,
 471                                                 ERR_NOSUCHSERVER_MSG,
 472                                                 Client_ID(Client), Req->prefix);
 473
 474                         return IRC_WriteStrClientPrefix(target, from,
 475                                         "PING %s :%s", Req->argv[0],
 476                                         Req->argv[1] );
 477                 }
 478         }
 479
 480         if (Client_Type(Client) == CLIENT_SERVER) {
 481                 if (Req->prefix)
 482                         from = Client_Search(Req->prefix);
 483                 else
 484                         from = Client;
 485         } else
 486                 from = Client_ThisServer();
 487         if (!from)
 488                 return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 489                                         Client_ID(Client), Req->prefix);
 490
 491         Log(LOG_DEBUG, "Connection %d: got PING, sending PONG ...",
 492             Client_Conn(Client));
 493
 494 #ifdef STRICT_RFC
 495         return IRC_WriteStrClient(Client, "PONG %s :%s",
 496                 Client_ID(from), Client_ID(Client));
 497 #else
 498         /* Some clients depend on the argument being returned in the PONG
 499          * reply (not mentioned in any RFC, though) */
 500         return IRC_WriteStrClient(Client, "PONG %s :%s",
 501                 Client_ID(from), Req->argv[0]);
 502 #endif
 503 } /* IRC_PING */
 504
 505
 506 GLOBAL bool
 507 IRC_PONG(CLIENT *Client, REQUEST *Req)
 508 {
 509         CLIENT *target, *from;
 510         char *s;
 511
 512         assert(Client != NULL);
 513         assert(Req != NULL);
 514
 515         /* Wrong number of arguments? */
 516         if (Req->argc < 1)
 517                 return IRC_WriteStrClient(Client, ERR_NOORIGIN_MSG,
 518                                           Client_ID(Client));
 519         if (Req->argc > 2)
 520                 return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
 521                                           Client_ID(Client), Req->command);
 522
 523         /* Forward? */
 524         if (Req->argc == 2 && Client_Type(Client) == CLIENT_SERVER) {
 525                 target = Client_Search(Req->argv[0]);
 526                 if (!target)
 527                         return IRC_WriteStrClient(Client, ERR_NOSUCHSERVER_MSG,
 528                                         Client_ID(Client), Req->argv[0]);
 529
 530                 from = Client_Search(Req->prefix);
 531
 532                 if (target != Client_ThisServer() && target != from) {
 533                         /* Ok, we have to forward the message. */
 534                         if (!from)
 535                                 return IRC_WriteStrClient(Client,
 536                                                 ERR_NOSUCHSERVER_MSG,
 537                                                 Client_ID(Client), Req->prefix);
 538
 539                         if (Client_Type(Client_NextHop(target)) != CLIENT_SERVER)
 540                                 s = Client_ID(from);
 541                         else
 542                                 s = Req->argv[0];
 543                         return IRC_WriteStrClientPrefix(target, from,
 544                                  "PONG %s :%s", s, Req->argv[1]);
 545                 }
 546         }
 547
 548         /* The connection timestamp has already been updated when the data has
 549          * been read from so socket, so we don't need to update it here. */
 550
 551         if (Client_Conn(Client) > NONE)
 552                 Log(LOG_DEBUG,
 553                         "Connection %d: received PONG. Lag: %ld seconds.",
 554                         Client_Conn(Client),
 555                         time(NULL) - Conn_LastPing(Client_Conn(Client)));
 556         else
 557                  Log(LOG_DEBUG,
 558                         "Connection %d: received PONG.", Client_Conn(Client));
 559
 560         return CONNECTED;
 561 } /* IRC_PONG */
 562
 563
 564 static bool
 565 Hello_User( CLIENT *Client )
 566 {
 567 #ifdef CVSDATE
 568         char ver[12], vertxt[30];
 569 #endif
 570
 571         assert( Client != NULL );
 572
 573         /* Check password ... */
 574         if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
 575         {
 576                 /* Bad password! */
 577                 Log( LOG_ERR, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
 578                 Conn_Close( Client_Conn( Client ), NULL, "Bad password", true);
 579                 return DISCONNECTED;
 580         }
 581
 582         Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
 583
 584         /* Inform other servers */
 585         IRC_WriteStrServers( NULL, "NICK %s 1 %s %s 1 +%s :%s", Client_ID( Client ), Client_User( Client ), Client_Hostname( Client ), Client_Modes( Client ), Client_Info( Client ));
 586
 587         /* Welcome :-) */
 588         if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return false;
 589
 590         /* Version and system type */
 591 #ifdef CVSDATE
 592         strlcpy( ver, CVSDATE, sizeof( ver ));
 593         strncpy( ver + 4, ver + 5, 2 );
 594         strncpy( ver + 6, ver + 8, 3 );
 595         snprintf( vertxt, sizeof( vertxt ), "%s(%s)", PACKAGE_VERSION, ver );
 596         if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )), vertxt, TARGET_CPU, TARGET_VENDOR, TARGET_OS )) return false;
 597 #else
 598         if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )), PACKAGE_VERSION, TARGET_CPU, TARGET_VENDOR, TARGET_OS )) return false;
 599 #endif
 600
 601         if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return false;
 602 #ifdef CVSDATE
 603         if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )), vertxt, USERMODES, CHANMODES )) return false;
 604 #else
 605         if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )), PACKAGE_VERSION, USERMODES, CHANMODES )) return false;
 606 #endif
 607
 608         /* Features supported by this server (005 numeric, ISUPPORT),
 609          * see <http://www.irc.org/tech_docs/005.html> for details. */
 610         if( ! IRC_WriteStrClient( Client, RPL_ISUPPORT_MSG, Client_ID( Client ), CLIENT_NICK_LEN - 1,
 611                         COMMAND_LEN - 23, CLIENT_AWAY_LEN - 1, Conf_MaxJoins )) return DISCONNECTED;
 612
 613         Client_SetType( Client, CLIENT_USER );
 614
 615         if( ! IRC_Send_LUSERS( Client )) return DISCONNECTED;
 616         if( ! IRC_Show_MOTD( Client )) return DISCONNECTED;
 617
 618         /* Suspend the client for a second ... */
 619         IRC_SetPenalty( Client, 1 );
 620
 621         return CONNECTED;
 622 } /* Hello_User */
 623
 624
 625 static void
 626 Kill_Nick( char *Nick, char *Reason )
 627 {
 628         REQUEST r;
 629
 630         assert( Nick != NULL );
 631         assert( Reason != NULL );
 632
 633         r.prefix = (char *)Client_ThisServer( );
 634         r.argv[0] = Nick;
 635         r.argv[1] = Reason;
 636         r.argc = 2;
 637
 638         Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s", Nick, Reason );
 639         IRC_KILL( Client_ThisServer( ), &r );
 640 } /* Kill_Nick */
 641
 642
 643 /* -eof- */