src/users.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
   6  *                     E-mail:
   7  *              <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *          the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 #include "configreader.h"
  18 #include "channels.h"
  19 #include "users.h"
  20 #include "inspircd.h"
  21 #include <stdarg.h>
  22 #include "socketengine.h"
  23 #include "wildcard.h"
  24 #include "xline.h"
  25 #include "cull_list.h"
  26
  27 static unsigned long already_sent[MAX_DESCRIPTORS] = {0};
  28
  29 /* XXX: Used for speeding up WriteCommon operations */
  30 unsigned long uniq_id = 0;
  31
  32 bool InitTypes(ServerConfig* conf, const char* tag)
  33 {
  34         if (conf->opertypes.size())
  35         {
  36                 conf->GetInstance()->Log(DEBUG,"Currently %d items to clear",conf->opertypes.size());
  37                 for (opertype_t::iterator n = conf->opertypes.begin(); n != conf->opertypes.end(); n++)
  38                 {
  39                         conf->GetInstance()->Log(DEBUG,"Clear item");
  40                         if (n->second)
  41                                 delete[] n->second;
  42                 }
  43         }
  44
  45         conf->opertypes.clear();
  46         return true;
  47 }
  48
  49 bool InitClasses(ServerConfig* conf, const char* tag)
  50 {
  51         if (conf->operclass.size())
  52         {
  53                 for (operclass_t::iterator n = conf->operclass.begin(); n != conf->operclass.end(); n++)
  54                 {
  55                         if (n->second)
  56                                 delete[] n->second;
  57                 }
  58         }
  59
  60         conf->operclass.clear();
  61         return true;
  62 }
  63
  64 bool DoType(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
  65 {
  66         char* TypeName = (char*)values[0];
  67         char* Classes = (char*)values[1];
  68
  69         conf->opertypes[TypeName] = strdup(Classes);
  70         conf->GetInstance()->Log(DEBUG,"Read oper TYPE '%s' with classes '%s'",TypeName,Classes);
  71         return true;
  72 }
  73
  74 bool DoClass(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
  75 {
  76         char* ClassName = (char*)values[0];
  77         char* CommandList = (char*)values[1];
  78
  79         conf->operclass[ClassName] = strdup(CommandList);
  80         conf->GetInstance()->Log(DEBUG,"Read oper CLASS '%s' with commands '%s'",ClassName,CommandList);
  81         return true;
  82 }
  83
  84 bool DoneClassesAndTypes(ServerConfig* conf, const char* tag)
  85 {
  86         return true;
  87 }
  88
  89 std::string userrec::ProcessNoticeMasks(const char *sm)
  90 {
  91         bool adding = true, oldadding = false;
  92         const char *c = sm;
  93         std::string output;
  94
  95         ServerInstance->Log(DEBUG,"Process notice masks");
  96
  97         while (c && *c)
  98         {
  99                 ServerInstance->Log(DEBUG,"Process notice mask %c",*c);
 100
 101                 switch (*c)
 102                 {
 103                         case '+':
 104                                 adding = true;
 105                         break;
 106                         case '-':
 107                                 adding = false;
 108                         break;
 109                         case '*':
 110                                 for (unsigned char d = 'A'; d <= 'z'; d++)
 111                                 {
 112                                         if (ServerInstance->SNO->IsEnabled(d))
 113                                         {
 114                                                 if ((!IsNoticeMaskSet(d) && adding) || (IsNoticeMaskSet(d) && !adding))
 115                                                 {
 116                                                         if ((oldadding != adding) || (!output.length()))
 117                                                                 output += (adding ? '+' : '-');
 118
 119                                                         this->SetNoticeMask(d, adding);
 120
 121                                                         output += d;
 122                                                 }
 123                                         }
 124                                         oldadding = adding;
 125                                 }
 126                         break;
 127                         default:
 128                                 if ((*c >= 'A') && (*c <= 'z') && (ServerInstance->SNO->IsEnabled(*c)))
 129                                 {
 130                                         if ((!IsNoticeMaskSet(*c) && adding) || (IsNoticeMaskSet(*c) && !adding))
 131                                         {
 132                                                 if ((oldadding != adding) || (!output.length()))
 133                                                         output += (adding ? '+' : '-');
 134
 135                                                 this->SetNoticeMask(*c, adding);
 136
 137                                                 output += *c;
 138                                         }
 139                                 }
 140                                 oldadding = adding;
 141                         break;
 142                 }
 143
 144                 *c++;
 145         }
 146
 147         return output;
 148 }
 149
 150 void userrec::StartDNSLookup()
 151 {
 152         ServerInstance->Log(DEBUG,"Commencing reverse lookup");
 153         try
 154         {
 155                 ServerInstance->Log(DEBUG,"Passing instance: %08x",this->ServerInstance);
 156                 res_reverse = new UserResolver(this->ServerInstance, this, this->GetIPString(), DNS_QUERY_REVERSE);
 157                 this->ServerInstance->AddResolver(res_reverse);
 158         }
 159         catch (ModuleException& e)
 160         {
 161                 ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
 162         }
 163 }
 164
 165 UserResolver::UserResolver(InspIRCd* Instance, userrec* user, std::string to_resolve, QueryType qt) :
 166         Resolver(Instance, to_resolve, qt), bound_user(user)
 167 {
 168         this->fwd = (qt == DNS_QUERY_A || qt == DNS_QUERY_AAAA);
 169         this->bound_fd = user->GetFd();
 170 }
 171
 172 void UserResolver::OnLookupComplete(const std::string &result)
 173 {
 174         if ((!this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
 175         {
 176                 ServerInstance->Log(DEBUG,"Commencing forward lookup");
 177                 this->bound_user->stored_host = result;
 178                 try
 179                 {
 180                         /* Check we didnt time out */
 181                         if (this->bound_user->registered != REG_ALL)
 182                         {
 183                                 const char *ip = this->bound_user->GetIPString();
 184                                 bound_user->res_forward = new UserResolver(this->ServerInstance, this->bound_user, result, (strstr(ip,"0::ffff:") == ip ? DNS_QUERY_A : DNS_QUERY_AAAA));
 185                                 this->ServerInstance->AddResolver(bound_user->res_forward);
 186                         }
 187                 }
 188                 catch (ModuleException& e)
 189                 {
 190                         ServerInstance->Log(DEBUG,"Error in resolver: %s",e.GetReason());
 191                 }
 192         }
 193         else if ((this->fwd) && (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user))
 194         {
 195                 /* Both lookups completed */
 196                 std::string result2 = "0::ffff:";
 197                 result2.append(result);
 198                 if (this->bound_user->GetIPString() == result || this->bound_user->GetIPString() == result2)
 199                 {
 200                         std::string hostname = this->bound_user->stored_host;
 201                         if (hostname.length() < 65)
 202                         {
 203                                 /* Check we didnt time out */
 204                                 if (this->bound_user->registered != REG_ALL)
 205                                 {
 206                                         /* Hostnames starting with : are not a good thing (tm) */
 207                                         if (*(hostname.c_str()) == ':')
 208                                                 hostname = "0" + hostname;
 209
 210                                         this->bound_user->WriteServ("NOTICE Auth :*** Found your hostname (%s)", hostname.c_str());
 211                                         this->bound_user->dns_done = true;
 212                                         strlcpy(this->bound_user->dhost, hostname.c_str(),64);
 213                                         strlcpy(this->bound_user->host, hostname.c_str(),64);
 214                                 }
 215                         }
 216                         else
 217                         {
 218                                 this->bound_user->WriteServ("NOTICE Auth :*** Your hostname is longer than the maximum of 64 characters, using your IP address (%s) instead.", this->bound_user->GetIPString());
 219                         }
 220                 }
 221                 else
 222                 {
 223                         this->bound_user->WriteServ("NOTICE Auth :*** Your hostname does not match up with your IP address. Sorry, using your IP address (%s) instead.", this->bound_user->GetIPString());
 224                 }
 225         }
 226 }
 227
 228 void UserResolver::OnError(ResolverError e, const std::string &errormessage)
 229 {
 230         if (ServerInstance->SE->GetRef(this->bound_fd) == this->bound_user)
 231         {
 232                 /* Error message here */
 233                 this->bound_user->WriteServ("NOTICE Auth :*** Could not resolve your hostname, using your IP address (%s) instead.", this->bound_user->GetIPString());
 234                 this->bound_user->dns_done = true;
 235         }
 236 }
 237
 238
 239 bool userrec::IsNoticeMaskSet(unsigned char sm)
 240 {
 241         return (snomasks[sm-65]);
 242 }
 243
 244 void userrec::SetNoticeMask(unsigned char sm, bool value)
 245 {
 246         snomasks[sm-65] = value;
 247 }
 248
 249 const char* userrec::FormatNoticeMasks()
 250 {
 251         static char data[MAXBUF];
 252         int offset = 0;
 253
 254         for (int n = 0; n < 64; n++)
 255         {
 256                 if (snomasks[n])
 257                         data[offset++] = n+65;
 258         }
 259
 260         data[offset] = 0;
 261         return data;
 262 }
 263
 264
 265
 266 bool userrec::IsModeSet(unsigned char m)
 267 {
 268         return (modes[m-65]);
 269 }
 270
 271 void userrec::SetMode(unsigned char m, bool value)
 272 {
 273         modes[m-65] = value;
 274 }
 275
 276 const char* userrec::FormatModes()
 277 {
 278         static char data[MAXBUF];
 279         int offset = 0;
 280         for (int n = 0; n < 64; n++)
 281         {
 282                 if (modes[n])
 283                         data[offset++] = n+65;
 284         }
 285         data[offset] = 0;
 286         return data;
 287 }
 288
 289 userrec::userrec(InspIRCd* Instance) : ServerInstance(Instance)
 290 {
 291         ServerInstance->Log(DEBUG,"userrec::userrec(): Instance: %08x",ServerInstance);
 292         // the PROPER way to do it, AVOID bzero at *ALL* costs
 293         *password = *nick = *ident = *host = *dhost = *fullname = *awaymsg = *oper = 0;
 294         server = (char*)Instance->FindServerNamePtr(Instance->Config->ServerName);
 295         reset_due = ServerInstance->Time();
 296         age = ServerInstance->Time(true);
 297         lines_in = lastping = signon = idle_lastmsg = nping = registered = 0;
 298         ChannelCount = timeout = flood = bytes_in = bytes_out = cmds_in = cmds_out = 0;
 299         haspassed = dns_done = false;
 300         fd = -1;
 301         recvq = "";
 302         sendq = "";
 303         WriteError = "";
 304         res_forward = res_reverse = NULL;
 305         ip = NULL;
 306         chans.clear();
 307         invites.clear();
 308         chans.resize(MAXCHANS);
 309         memset(modes,0,sizeof(modes));
 310         memset(snomasks,0,sizeof(snomasks));
 311
 312         for (unsigned int n = 0; n < MAXCHANS; n++)
 313         {
 314                 chans[n] = new ucrec();
 315                 chans[n]->channel = NULL;
 316                 chans[n]->uc_modes = 0;
 317         }
 318 }
 319
 320 userrec::~userrec()
 321 {
 322         for (std::vector<ucrec*>::iterator n = chans.begin(); n != chans.end(); n++)
 323         {
 324                 ucrec* x = (ucrec*)*n;
 325                 delete x;
 326         }
 327
 328         if (ip)
 329         {
 330                 if (this->GetProtocolFamily() == AF_INET)
 331                 {
 332                         delete (sockaddr_in*)ip;
 333                 }
 334 #ifdef SUPPORT_IP6LINKS
 335                 else
 336                 {
 337                         delete (sockaddr_in6*)ip;
 338                 }
 339 #endif
 340         }
 341 }
 342
 343 char* userrec::MakeHost()
 344 {
 345         static char nhost[MAXBUF];
 346         /* This is much faster than snprintf */
 347         char* t = nhost;
 348         for(char* n = ident; *n; n++)
 349                 *t++ = *n;
 350         *t++ = '@';
 351         for(char* n = host; *n; n++)
 352                 *t++ = *n;
 353         *t = 0;
 354         return nhost;
 355 }
 356
 357 char* userrec::MakeHostIP()
 358 {
 359         static char ihost[MAXBUF];
 360         /* This is much faster than snprintf */
 361         char* t = ihost;
 362         for(char* n = ident; *n; n++)
 363                 *t++ = *n;
 364         *t++ = '@';
 365         for(const char* n = this->GetIPString(); *n; n++)
 366                 *t++ = *n;
 367         *t = 0;
 368         return ihost;
 369 }
 370
 371 void userrec::CloseSocket()
 372 {
 373         shutdown(this->fd,2);
 374         close(this->fd);
 375 }
 376
 377 char* userrec::GetFullHost()
 378 {
 379         static char result[MAXBUF];
 380         char* t = result;
 381         for(char* n = nick; *n; n++)
 382                 *t++ = *n;
 383         *t++ = '!';
 384         for(char* n = ident; *n; n++)
 385                 *t++ = *n;
 386         *t++ = '@';
 387         for(char* n = dhost; *n; n++)
 388                 *t++ = *n;
 389         *t = 0;
 390         return result;
 391 }
 392
 393 char* userrec::MakeWildHost()
 394 {
 395         static char nresult[MAXBUF];
 396         char* t = nresult;
 397         *t++ = '*';     *t++ = '!';
 398         *t++ = '*';     *t++ = '@';
 399         for(char* n = dhost; *n; n++)
 400                 *t++ = *n;
 401         *t = 0;
 402         return nresult;
 403 }
 404
 405 int userrec::ReadData(void* buffer, size_t size)
 406 {
 407         if (IS_LOCAL(this))
 408         {
 409                 return read(this->fd, buffer, size);
 410         }
 411         else
 412                 return 0;
 413 }
 414
 415
 416 char* userrec::GetFullRealHost()
 417 {
 418         static char fresult[MAXBUF];
 419         char* t = fresult;
 420         for(char* n = nick; *n; n++)
 421                 *t++ = *n;
 422         *t++ = '!';
 423         for(char* n = ident; *n; n++)
 424                 *t++ = *n;
 425         *t++ = '@';
 426         for(char* n = host; *n; n++)
 427                 *t++ = *n;
 428         *t = 0;
 429         return fresult;
 430 }
 431
 432 bool userrec::IsInvited(irc::string &channel)
 433 {
 434         for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 435         {
 436                 irc::string compare = i->channel;
 437
 438                 if (compare == channel)
 439                 {
 440                         return true;
 441                 }
 442         }
 443         return false;
 444 }
 445
 446 InvitedList* userrec::GetInviteList()
 447 {
 448         return &invites;
 449 }
 450
 451 void userrec::InviteTo(irc::string &channel)
 452 {
 453         Invited i;
 454         i.channel = channel;
 455         invites.push_back(i);
 456 }
 457
 458 void userrec::RemoveInvite(irc::string &channel)
 459 {
 460         ServerInstance->Log(DEBUG,"Removing invites");
 461
 462         if (invites.size())
 463         {
 464                 for (InvitedList::iterator i = invites.begin(); i != invites.end(); i++)
 465                 {
 466                         irc::string compare = i->channel;
 467
 468                         if (compare == channel)
 469                         {
 470                                 invites.erase(i);
 471                                 return;
 472                         }
 473                 }
 474         }
 475 }
 476
 477 bool userrec::HasPermission(const std::string &command)
 478 {
 479         char* mycmd;
 480         char* savept;
 481         char* savept2;
 482
 483         /*
 484          * users on remote servers can completely bypass all permissions based checks.
 485          * This prevents desyncs when one server has different type/class tags to another.
 486          * That having been said, this does open things up to the possibility of source changes
 487          * allowing remote kills, etc - but if they have access to the src, they most likely have
 488          * access to the conf - so it's an end to a means either way.
 489          */
 490         if (!IS_LOCAL(this))
 491                 return true;
 492
 493         // are they even an oper at all?
 494         if (*this->oper)
 495         {
 496                 opertype_t::iterator iter_opertype = ServerInstance->Config->opertypes.find(this->oper);
 497                 if (iter_opertype != ServerInstance->Config->opertypes.end())
 498                 {
 499                         char* Classes = strdup(iter_opertype->second);
 500                         char* myclass = strtok_r(Classes," ",&savept);
 501                         while (myclass)
 502                         {
 503                                 operclass_t::iterator iter_operclass = ServerInstance->Config->operclass.find(myclass);
 504                                 if (iter_operclass != ServerInstance->Config->operclass.end())
 505                                 {
 506                                         char* CommandList = strdup(iter_operclass->second);
 507                                         mycmd = strtok_r(CommandList," ",&savept2);
 508                                         while (mycmd)
 509                                         {
 510                                                 if ((!strcasecmp(mycmd,command.c_str())) || (*mycmd == '*'))
 511                                                 {
 512                                                         free(Classes);
 513                                                         free(CommandList);
 514                                                         return true;
 515                                                 }
 516                                                 mycmd = strtok_r(NULL," ",&savept2);
 517                                         }
 518                                         free(CommandList);
 519                                 }
 520                                 myclass = strtok_r(NULL," ",&savept);
 521                         }
 522                         free(Classes);
 523                 }
 524         }
 525         return false;
 526 }
 527
 528 /** NOTE: We cannot pass a const reference to this method.
 529  * The string is changed by the workings of the method,
 530  * so that if we pass const ref, we end up copying it to
 531  * something we can change anyway. Makes sense to just let
 532  * the compiler do that copy for us.
 533  */
 534 bool userrec::AddBuffer(std::string a)
 535 {
 536         try
 537         {
 538                 std::string::size_type i = a.rfind('\r');
 539
 540                 while (i != std::string::npos)
 541                 {
 542                         a.erase(i, 1);
 543                         i = a.rfind('\r');
 544                 }
 545
 546                 if (a.length())
 547                         recvq.append(a);
 548
 549                 if (recvq.length() > (unsigned)this->recvqmax)
 550                 {
 551                         this->SetWriteError("RecvQ exceeded");
 552                         ServerInstance->WriteOpers("*** User %s RecvQ of %d exceeds connect class maximum of %d",this->nick,recvq.length(),this->recvqmax);
 553                         return false;
 554                 }
 555
 556                 return true;
 557         }
 558
 559         catch (...)
 560         {
 561                 ServerInstance->Log(DEBUG,"Exception in userrec::AddBuffer()");
 562                 return false;
 563         }
 564 }
 565
 566 bool userrec::BufferIsReady()
 567 {
 568         return (recvq.find('\n') != std::string::npos);
 569 }
 570
 571 void userrec::ClearBuffer()
 572 {
 573         recvq = "";
 574 }
 575
 576 std::string userrec::GetBuffer()
 577 {
 578         try
 579         {
 580                 if (!recvq.length())
 581                         return "";
 582
 583                 /* Strip any leading \r or \n off the string.
 584                  * Usually there are only one or two of these,
 585                  * so its is computationally cheap to do.
 586                  */
 587                 while ((*recvq.begin() == '\r') || (*recvq.begin() == '\n'))
 588                         recvq.erase(recvq.begin());
 589
 590                 for (std::string::iterator x = recvq.begin(); x != recvq.end(); x++)
 591                 {
 592                         /* Find the first complete line, return it as the
 593                          * result, and leave the recvq as whats left
 594                          */
 595                         if (*x == '\n')
 596                         {
 597                                 std::string ret = std::string(recvq.begin(), x);
 598                                 recvq.erase(recvq.begin(), x + 1);
 599                                 return ret;
 600                         }
 601                 }
 602                 return "";
 603         }
 604
 605         catch (...)
 606         {
 607                 ServerInstance->Log(DEBUG,"Exception in userrec::GetBuffer()");
 608                 return "";
 609         }
 610 }
 611
 612 void userrec::AddWriteBuf(const std::string &data)
 613 {
 614         if (*this->GetWriteError())
 615                 return;
 616
 617         if (sendq.length() + data.length() > (unsigned)this->sendqmax)
 618         {
 619                 /*
 620                  * Fix by brain - Set the error text BEFORE calling writeopers, because
 621                  * if we dont it'll recursively  call here over and over again trying
 622                  * to repeatedly add the text to the sendq!
 623                  */
 624                 this->SetWriteError("SendQ exceeded");
 625                 ServerInstance->WriteOpers("*** User %s SendQ of %d exceeds connect class maximum of %d",this->nick,sendq.length() + data.length(),this->sendqmax);
 626                 return;
 627         }
 628
 629         try
 630         {
 631                 if (data.length() > 512)
 632                 {
 633                         std::string newdata(data);
 634                         newdata.resize(510);
 635                         newdata.append("\r\n");
 636                         sendq.append(newdata);
 637                 }
 638                 else
 639                 {
 640                         sendq.append(data);
 641                 }
 642         }
 643         catch (...)
 644         {
 645                 this->SetWriteError("SendQ exceeded");
 646                 ServerInstance->WriteOpers("*** User %s SendQ got an exception",this->nick);
 647         }
 648 }
 649
 650 // send AS MUCH OF THE USERS SENDQ as we are able to (might not be all of it)
 651 void userrec::FlushWriteBuf()
 652 {
 653         try
 654         {
 655                 if ((this->fd == FD_MAGIC_NUMBER) || (*this->GetWriteError()))
 656                 {
 657                         sendq = "";
 658                 }
 659                 if ((sendq.length()) && (this->fd != FD_MAGIC_NUMBER))
 660                 {
 661                         int old_sendq_length = sendq.length();
 662                         const char* tb = this->sendq.c_str();
 663                         int n_sent = write(this->fd,tb,this->sendq.length());
 664                         if (n_sent == -1)
 665                         {
 666                                 if (errno == EAGAIN)
 667                                 {
 668                                         ServerInstance->Log(DEBUG,"EAGAIN, want write");
 669                                         this->ServerInstance->SE->WantWrite(this);
 670                                 }
 671                                 else
 672                                         this->SetWriteError(strerror(errno));
 673                         }
 674                         else
 675                         {
 676                                 /*ServerInstance->Log(DEBUG,"Wrote: %d of %d: %s", n_sent, old_sendq_length, sendq.substr(0, n_sent).c_str());*/
 677                                 // advance the queue
 678                                 tb += n_sent;
 679                                 this->sendq = tb;
 680                                 // update the user's stats counters
 681                                 this->bytes_out += n_sent;
 682                                 this->cmds_out++;
 683                                 if (n_sent != old_sendq_length)
 684                                 {
 685                                         ServerInstance->Log(DEBUG,"Not all written, want write");
 686                                         this->ServerInstance->SE->WantWrite(this);
 687                                 }
 688                         }
 689                 }
 690         }
 691
 692         catch (...)
 693         {
 694                 ServerInstance->Log(DEBUG,"Exception in userrec::FlushWriteBuf()");
 695         }
 696 }
 697
 698 void userrec::SetWriteError(const std::string &error)
 699 {
 700         try
 701         {
 702                 ServerInstance->Log(DEBUG,"SetWriteError: %s",error.c_str());
 703                 // don't try to set the error twice, its already set take the first string.
 704                 if (!this->WriteError.length())
 705                 {
 706                         ServerInstance->Log(DEBUG,"Setting error string for %s to '%s'",this->nick,error.c_str());
 707                         this->WriteError = error;
 708                 }
 709         }
 710
 711         catch (...)
 712         {
 713                 ServerInstance->Log(DEBUG,"Exception in userrec::SetWriteError()");
 714         }
 715 }
 716
 717 const char* userrec::GetWriteError()
 718 {
 719         return this->WriteError.c_str();
 720 }
 721
 722 void userrec::Oper(const std::string &opertype)
 723 {
 724         try
 725         {
 726                 this->modes[UM_OPERATOR] = 1;
 727                 this->WriteServ("MODE %s :+o", this->nick);
 728                 FOREACH_MOD(I_OnOper, OnOper(this, opertype));
 729                 ServerInstance->Log(DEFAULT,"OPER: %s!%s@%s opered as type: %s", this->nick, this->ident, this->host, opertype.c_str());
 730                 strlcpy(this->oper, opertype.c_str(), NICKMAX - 1);
 731                 ServerInstance->all_opers.push_back(this);
 732                 FOREACH_MOD(I_OnPostOper,OnPostOper(this, opertype));
 733         }
 734
 735         catch (...)
 736         {
 737                 ServerInstance->Log(DEBUG,"Exception in userrec::Oper()");
 738         }
 739 }
 740
 741 void userrec::UnOper()
 742 {
 743         try
 744         {
 745                 if (*this->oper)
 746                 {
 747                         *this->oper = 0;
 748                         this->modes[UM_OPERATOR] = 0;
 749                         for (std::vector<userrec*>::iterator a = ServerInstance->all_opers.begin(); a < ServerInstance->all_opers.end(); a++)
 750                         {
 751                                 if (*a == this)
 752                                 {
 753                                         ServerInstance->Log(DEBUG,"Oper removed from optimization list");
 754                                         ServerInstance->all_opers.erase(a);
 755                                         return;
 756                                 }
 757                         }
 758                 }
 759         }
 760
 761         catch (...)
 762         {
 763                 ServerInstance->Log(DEBUG,"Exception in userrec::UnOper()");
 764         }
 765 }
 766
 767 void userrec::QuitUser(InspIRCd* Instance, userrec *user, const std::string &quitreason)
 768 {
 769         user_hash::iterator iter = Instance->clientlist.find(user->nick);
 770         std::string reason = quitreason;
 771
 772         if (reason.length() > MAXQUIT - 1)
 773                 reason.resize(MAXQUIT - 1);
 774
 775         if (IS_LOCAL(user))
 776                 user->Write("ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason.c_str());
 777
 778         if (user->registered == REG_ALL)
 779         {
 780                 user->PurgeEmptyChannels();
 781                 FOREACH_MOD_I(Instance,I_OnUserQuit,OnUserQuit(user,reason));
 782                 user->WriteCommonExcept("QUIT :%s",reason.c_str());
 783         }
 784
 785         if (IS_LOCAL(user))
 786                 user->FlushWriteBuf();
 787
 788         FOREACH_MOD_I(Instance,I_OnUserDisconnect,OnUserDisconnect(user));
 789
 790         if (IS_LOCAL(user))
 791         {
 792                 if (Instance->Config->GetIOHook(user->GetPort()))
 793                 {
 794                         try
 795                         {
 796                                 Instance->Config->GetIOHook(user->GetPort())->OnRawSocketClose(user->fd);
 797                         }
 798                         catch (ModuleException& modexcept)
 799                         {
 800                                 Instance->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason());
 801                         }
 802                 }
 803
 804                 Instance->SE->DelFd(user);
 805                 user->CloseSocket();
 806         }
 807
 808         /*
 809          * this must come before the ServerInstance->SNO->WriteToSnoMaskso that it doesnt try to fill their buffer with anything
 810          * if they were an oper with +sn +qQ.
 811          */
 812         if (user->registered == REG_ALL)
 813         {
 814                 if (IS_LOCAL(user))
 815                         Instance->SNO->WriteToSnoMask('q',"Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason.c_str());
 816                 else
 817                         Instance->SNO->WriteToSnoMask('Q',"Client exiting on server %s: %s!%s@%s [%s]",user->server,user->nick,user->ident,user->host,reason.c_str());
 818                 user->AddToWhoWas();
 819         }
 820
 821         if (iter != Instance->clientlist.end())
 822         {
 823                 Instance->Log(DEBUG,"deleting user hash value %lx",(unsigned long)user);
 824                 if (IS_LOCAL(user))
 825                 {
 826                         if (find(Instance->local_users.begin(),Instance->local_users.end(),user) != Instance->local_users.end())
 827                                 Instance->local_users.erase(find(Instance->local_users.begin(),Instance->local_users.end(),user));
 828                 }
 829                 Instance->clientlist.erase(iter);
 830                 DELETE(user);
 831         }
 832 }
 833
 834 namespace irc
 835 {
 836         namespace whowas
 837         {
 838
 839                 WhoWasGroup::WhoWasGroup(userrec* user) : host(NULL), dhost(NULL), ident(NULL), server(NULL), gecos(NULL), signon(user->signon)
 840                 {
 841                         this->host = strdup(user->host);
 842                         this->dhost = strdup(user->dhost);
 843                         this->ident = strdup(user->ident);
 844                         this->server = user->server;
 845                         this->gecos = strdup(user->fullname);
 846                 }
 847
 848                 WhoWasGroup::~WhoWasGroup()
 849                 {
 850                         if (host)
 851                                 free(host);
 852                         if (dhost)
 853                                 free(dhost);
 854                         if (ident)
 855                                 free(ident);
 856                         if (gecos)
 857                                 free(gecos);
 858                 }
 859
 860                 /* every hour, run this function which removes all entries over 3 days */
 861                 void MaintainWhoWas(InspIRCd* ServerInstance, time_t t)
 862                 {
 863                         for (whowas_users::iterator iter = ServerInstance->whowas.begin(); iter != ServerInstance->whowas.end(); iter++)
 864                         {
 865                                 whowas_set* n = (whowas_set*)iter->second;
 866                                 if (n->size())
 867                                 {
 868                                         while ((n->begin() != n->end()) && ((*n->begin())->signon < t - 259200)) // 3 days
 869                                         {
 870                                                 WhoWasGroup *a = *(n->begin());
 871                                                 DELETE(a);
 872                                                 n->erase(n->begin());
 873                                         }
 874                                 }
 875                         }
 876                 }
 877         };
 878 };
 879
 880 /* adds or updates an entry in the whowas list */
 881 void userrec::AddToWhoWas()
 882 {
 883         irc::whowas::whowas_users::iterator iter = ServerInstance->whowas.find(this->nick);
 884
 885         ServerInstance->Log(DEBUG,"Add to whowas lists");
 886
 887         if (iter == ServerInstance->whowas.end())
 888         {
 889                 ServerInstance->Log(DEBUG,"Adding new whowas set for %s",this->nick);
 890                 irc::whowas::whowas_set* n = new irc::whowas::whowas_set;
 891                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 892                 n->push_back(a);
 893                 ServerInstance->whowas[this->nick] = n;
 894         }
 895         else
 896         {
 897                 irc::whowas::whowas_set* group = (irc::whowas::whowas_set*)iter->second;
 898
 899                 ServerInstance->Log(DEBUG,"Using existing whowas group for %s",this->nick);
 900
 901                 if (group->size() > 10)
 902                 {
 903                         ServerInstance->Log(DEBUG,"Trimming existing group to ten entries for %s",this->nick);
 904                         irc::whowas::WhoWasGroup *a = (irc::whowas::WhoWasGroup*)*(group->begin());
 905                         DELETE(a);
 906                         group->pop_front();
 907                 }
 908
 909                 irc::whowas::WhoWasGroup *a = new irc::whowas::WhoWasGroup(this);
 910                 group->push_back(a);
 911         }
 912 }
 913
 914 /* add a client connection to the sockets list */
 915 void userrec::AddClient(InspIRCd* Instance, int socket, int port, bool iscached, insp_inaddr ip)
 916 {
 917         std::string tempnick = ConvToStr(socket) + "-unknown";
 918         user_hash::iterator iter = Instance->clientlist.find(tempnick);
 919         const char *ipaddr = insp_ntoa(ip);
 920         userrec* New;
 921         int j = 0;
 922
 923         /*
 924          * fix by brain.
 925          * as these nicknames are 'RFC impossible', we can be sure nobody is going to be
 926          * using one as a registered connection. As they are per fd, we can also safely assume
 927          * that we wont have collisions. Therefore, if the nick exists in the list, its only
 928          * used by a dead socket, erase the iterator so that the new client may reclaim it.
 929          * this was probably the cause of 'server ignores me when i hammer it with reconnects'
 930          * issue in earlier alphas/betas
 931          */
 932         if (iter != Instance->clientlist.end())
 933         {
 934                 userrec* goner = iter->second;
 935                 DELETE(goner);
 936                 Instance->clientlist.erase(iter);
 937         }
 938
 939         Instance->Log(DEBUG,"AddClient: %d %d %s",socket,port,ipaddr);
 940
 941         New = new userrec(Instance);
 942         Instance->clientlist[tempnick] = New;
 943         New->fd = socket;
 944         strlcpy(New->nick,tempnick.c_str(),NICKMAX-1);
 945
 946         New->server = Instance->FindServerNamePtr(Instance->Config->ServerName);
 947         /* We don't need range checking here, we KNOW 'unknown\0' will fit into the ident field. */
 948         strcpy(New->ident, "unknown");
 949
 950         New->registered = REG_NONE;
 951         New->signon = Instance->Time() + Instance->Config->dns_timeout;
 952         New->lastping = 1;
 953
 954         Instance->Log(DEBUG,"Setting socket addresses");
 955         New->SetSockAddr(AF_FAMILY, ipaddr, port);
 956         Instance->Log(DEBUG,"Socket addresses set.");
 957
 958         /* Smarter than your average bear^H^H^H^Hset of strlcpys. */
 959         for (const char* temp = New->GetIPString(); *temp && j < 64; temp++, j++)
 960                 New->dhost[j] = New->host[j] = *temp;
 961         New->dhost[j] = New->host[j] = 0;
 962
 963         Instance->Log(DEBUG,"Hosts set.");
 964
 965         // set the registration timeout for this user
 966         unsigned long class_regtimeout = 90;
 967         int class_flood = 0;
 968         long class_threshold = 5;
 969         long class_sqmax = 262144;      // 256kb
 970         long class_rqmax = 4096;        // 4k
 971
 972         Instance->Log(DEBUG,"Class stuff set.");
 973
 974         for (ClassVector::iterator i = Instance->Config->Classes.begin(); i != Instance->Config->Classes.end(); i++)
 975         {
 976                 if ((i->type == CC_ALLOW) && (match(ipaddr,i->host.c_str(),true)))
 977                 {
 978                         class_regtimeout = (unsigned long)i->registration_timeout;
 979                         class_flood = i->flood;
 980                         New->pingmax = i->pingtime;
 981                         class_threshold = i->threshold;
 982                         class_sqmax = i->sendqmax;
 983                         class_rqmax = i->recvqmax;
 984                         break;
 985                 }
 986         }
 987
 988         Instance->Log(DEBUG,"nping etc set.");
 989
 990         New->nping = Instance->Time() + New->pingmax + Instance->Config->dns_timeout;
 991         New->timeout = Instance->Time() + class_regtimeout;
 992         New->flood = class_flood;
 993         New->threshold = class_threshold;
 994         New->sendqmax = class_sqmax;
 995         New->recvqmax = class_rqmax;
 996
 997         Instance->Log(DEBUG,"Push back to local users.");
 998         Instance->local_users.push_back(New);
 999
1000         Instance->Log(DEBUG,"Check softlimit: %d %d %d",Instance->local_users.size(), Instance->Config->SoftLimit, MAXCLIENTS);
1001         if ((Instance->local_users.size() > Instance->Config->SoftLimit) || (Instance->local_users.size() >= MAXCLIENTS))
1002         {
1003                 Instance->Log(DEBUG,"Check softlimit failed");
1004                 Instance->WriteOpers("*** Warning: softlimit value has been reached: %d clients", Instance->Config->SoftLimit);
1005                 userrec::QuitUser(Instance, New,"No more connections allowed");
1006                 return;
1007         }
1008
1009         Instance->Log(DEBUG,"Softlimit passed.");
1010
1011         /*
1012          * XXX -
1013          * this is done as a safety check to keep the file descriptors within range of fd_ref_table.
1014          * its a pretty big but for the moment valid assumption:
1015          * file descriptors are handed out starting at 0, and are recycled as theyre freed.
1016          * therefore if there is ever an fd over 65535, 65536 clients must be connected to the
1017          * irc server at once (or the irc server otherwise initiating this many connections, files etc)
1018          * which for the time being is a physical impossibility (even the largest networks dont have more
1019          * than about 10,000 users on ONE server!)
1020          */
1021         if ((unsigned int)socket >= MAX_DESCRIPTORS)
1022         {
1023                 userrec::QuitUser(Instance, New, "Server is full");
1024                 return;
1025         }
1026
1027         Instance->Log(DEBUG,"socket < MAX_DESCRIPTORS passed.");
1028
1029         ELine* e = Instance->XLines->matches_exception(New);
1030         if (!e)
1031         {
1032                 Instance->Log(DEBUG,"Doesnt match eline.");
1033                 ZLine* r = Instance->XLines->matches_zline(ipaddr);
1034                 if (r)
1035                 {
1036                         Instance->Log(DEBUG,"Matches zline.");
1037                         char reason[MAXBUF];
1038                         snprintf(reason,MAXBUF,"Z-Lined: %s",r->reason);
1039                         userrec::QuitUser(Instance, New, reason);
1040                         return;
1041                 }
1042                 Instance->Log(DEBUG,"Doesnt match zline.");
1043         }
1044
1045         Instance->Log(DEBUG,"Check before AddFd.");
1046
1047         if (socket > -1)
1048         {
1049                 Instance->Log(DEBUG,"Adding fd.");
1050                 if (!Instance->SE->AddFd(New))
1051                 {
1052                         Instance->Log(DEBUG,"Oops, fd already exists");
1053                         userrec::QuitUser(Instance, New, "Internal error handling connection");
1054                         return;
1055                 }
1056         }
1057
1058         New->WriteServ("NOTICE Auth :*** Looking up your hostname...");
1059 }
1060
1061 long userrec::GlobalCloneCount()
1062 {
1063         char u2[128];
1064         long x = 0;
1065         strlcpy(u2, this->GetIPString(), 64);
1066
1067         for (user_hash::const_iterator a = ServerInstance->clientlist.begin(); a != ServerInstance->clientlist.end(); a++)
1068         {
1069                 /* We have to match ip's as strings - we don't know what protocol
1070                  * a remote user may be using
1071                  */
1072                 if (strcasecmp(a->second->GetIPString(), u2) == 0)
1073                         x++;
1074         }
1075
1076         return x;
1077 }
1078
1079 long userrec::LocalCloneCount()
1080 {
1081         long x = 0;
1082         for (std::vector<userrec*>::const_iterator a = ServerInstance->local_users.begin(); a != ServerInstance->local_users.end(); a++)
1083         {
1084                 userrec* comp = *a;
1085 #ifdef IPV6
1086                 /* I dont think theres any faster way of matching two ipv6 addresses than memcmp */
1087                 in6_addr* s1 = &(((sockaddr_in6*)comp->ip)->sin6_addr);
1088                 in6_addr* s2 = &(((sockaddr_in6*)this->ip)->sin6_addr);
1089                 if (!memcmp(s1->s6_addr, s2->s6_addr, sizeof(in6_addr)))
1090                         x++;
1091 #else
1092                 in_addr* s1 = &((sockaddr_in*)comp->ip)->sin_addr;
1093                 in_addr* s2 = &((sockaddr_in*)this->ip)->sin_addr;
1094                 if (s1->s_addr == s2->s_addr)
1095                         x++;
1096 #endif
1097         }
1098         return x;
1099 }
1100
1101 void userrec::FullConnect(CullList* Goners)
1102 {
1103         ServerInstance->stats->statsConnects++;
1104         this->idle_lastmsg = ServerInstance->Time();
1105
1106         ConnectClass a = this->GetClass();
1107
1108         if (a.type == CC_DENY)
1109         {
1110                 Goners->AddItem(this,"Unauthorised connection");
1111                 return;
1112         }
1113
1114         if ((*(a.pass.c_str())) && (!this->haspassed))
1115         {
1116                 Goners->AddItem(this,"Invalid password");
1117                 return;
1118         }
1119
1120         if (this->LocalCloneCount() > a.maxlocal)
1121         {
1122                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (local)");
1123                 ServerInstance->WriteOpers("*** WARNING: maximum LOCAL connections (%ld) exceeded for IP %s", a.maxlocal, this->GetIPString());
1124                 return;
1125         }
1126         else if (this->GlobalCloneCount() > a.maxglobal)
1127         {
1128                 Goners->AddItem(this, "No more connections allowed from your host via this connect class (global)");
1129                 ServerInstance->WriteOpers("*** WARNING: maximum GLOBAL connections (%ld) exceeded for IP %s",a.maxglobal, this->GetIPString());
1130                 return;
1131         }
1132
1133         ELine* e = ServerInstance->XLines->matches_exception(this);
1134
1135         if (!e)
1136         {
1137                 GLine* r = ServerInstance->XLines->matches_gline(this);
1138
1139                 if (r)
1140                 {
1141                         char reason[MAXBUF];
1142                         snprintf(reason,MAXBUF,"G-Lined: %s",r->reason);
1143                         Goners->AddItem(this, reason);
1144                         return;
1145                 }
1146
1147                 KLine* n = ServerInstance->XLines->matches_kline(this);
1148
1149                 if (n)
1150                 {
1151                         char reason[MAXBUF];
1152                         snprintf(reason,MAXBUF,"K-Lined: %s",n->reason);
1153                         Goners->AddItem(this, reason);
1154                         return;
1155                 }
1156         }
1157
1158
1159         this->WriteServ("NOTICE Auth :Welcome to \002%s\002!",ServerInstance->Config->Network);
1160         this->WriteServ("001 %s :Welcome to the %s IRC Network %s!%s@%s",this->nick, ServerInstance->Config->Network, this->nick, this->ident, this->host);
1161         this->WriteServ("002 %s :Your host is %s, running version %s",this->nick,ServerInstance->Config->ServerName,VERSION);
1162         this->WriteServ("003 %s :This server was created %s %s", this->nick, __TIME__, __DATE__);
1163         this->WriteServ("004 %s %s %s %s %s %s", this->nick, ServerInstance->Config->ServerName, VERSION, ServerInstance->Modes->UserModeList().c_str(), ServerInstance->Modes->ChannelModeList().c_str(), ServerInstance->Modes->ParaModeList().c_str());
1164
1165         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
1166         // so i'd better split it :)
1167         std::stringstream out(ServerInstance->Config->data005);
1168         std::string token = "";
1169         std::string line5 = "";
1170         int token_counter = 0;
1171
1172         while (!out.eof())
1173         {
1174                 out >> token;
1175                 line5 = line5 + token + " ";
1176                 token_counter++;
1177
1178                 if ((token_counter >= 13) || (out.eof() == true))
1179                 {
1180                         this->WriteServ("005 %s %s:are supported by this server", this->nick, line5.c_str());
1181                         line5 = "";
1182                         token_counter = 0;
1183                 }
1184         }
1185
1186         this->ShowMOTD();
1187
1188         /*
1189          * fix 3 by brain, move registered = 7 below these so that spurious modes and host
1190          * changes dont go out onto the network and produce 'fake direction'.
1191          */
1192         FOREACH_MOD(I_OnUserConnect,OnUserConnect(this));
1193
1194         this->registered = REG_ALL;
1195
1196         FOREACH_MOD(I_OnPostConnect,OnPostConnect(this));
1197
1198         ServerInstance->SNO->WriteToSnoMask('c',"Client connecting on port %d: %s!%s@%s [%s]", this->GetPort(), this->nick, this->ident, this->host, this->GetIPString());
1199 }
1200
1201 /** userrec::UpdateNick()
1202  * re-allocates a nick in the user_hash after they change nicknames,
1203  * returns a pointer to the new user as it may have moved
1204  */
1205 userrec* userrec::UpdateNickHash(const char* New)
1206 {
1207         try
1208         {
1209                 //user_hash::iterator newnick;
1210                 user_hash::iterator oldnick = ServerInstance->clientlist.find(this->nick);
1211
1212                 if (!strcasecmp(this->nick,New))
1213                         return oldnick->second;
1214
1215                 if (oldnick == ServerInstance->clientlist.end())
1216                         return NULL; /* doesnt exist */
1217
1218                 userrec* olduser = oldnick->second;
1219                 ServerInstance->clientlist[New] = olduser;
1220                 ServerInstance->clientlist.erase(oldnick);
1221                 return ServerInstance->clientlist[New];
1222         }
1223
1224         catch (...)
1225         {
1226                 ServerInstance->Log(DEBUG,"Exception in userrec::UpdateNickHash()");
1227                 return NULL;
1228         }
1229 }
1230
1231 bool userrec::ForceNickChange(const char* newnick)
1232 {
1233         try
1234         {
1235                 int MOD_RESULT = 0;
1236
1237                 FOREACH_RESULT(I_OnUserPreNick,OnUserPreNick(this, newnick));
1238
1239                 if (MOD_RESULT)
1240                 {
1241                         ServerInstance->stats->statsCollisions++;
1242                         return false;
1243                 }
1244
1245                 if (ServerInstance->XLines->matches_qline(newnick))
1246                 {
1247                         ServerInstance->stats->statsCollisions++;
1248                         return false;
1249                 }
1250
1251                 if (this->registered == REG_ALL)
1252                 {
1253                         const char* pars[1];
1254                         pars[0] = newnick;
1255                         std::string cmd = "NICK";
1256                         return (ServerInstance->Parser->CallHandler(cmd, pars, 1, this) == CMD_SUCCESS);
1257                 }
1258                 return false;
1259         }
1260
1261         catch (...)
1262         {
1263                 ServerInstance->Log(DEBUG,"Exception in userrec::ForceNickChange()");
1264                 return false;
1265         }
1266 }
1267
1268 void userrec::SetSockAddr(int protocol_family, const char* ip, int port)
1269 {
1270         switch (protocol_family)
1271         {
1272 #ifdef SUPPORT_IP6LINKS
1273                 case AF_INET6:
1274                 {
1275                         ServerInstance->Log(DEBUG,"Set inet6 protocol address");
1276                         sockaddr_in6* sin = new sockaddr_in6;
1277                         sin->sin6_family = AF_INET6;
1278                         sin->sin6_port = port;
1279                         inet_pton(AF_INET6, ip, &sin->sin6_addr);
1280                         this->ip = (sockaddr*)sin;
1281                 }
1282                 break;
1283 #endif
1284                 case AF_INET:
1285                 {
1286                         ServerInstance->Log(DEBUG,"Set inet4 protocol address");
1287                         sockaddr_in* sin = new sockaddr_in;
1288                         sin->sin_family = AF_INET;
1289                         sin->sin_port = port;
1290                         inet_pton(AF_INET, ip, &sin->sin_addr);
1291                         this->ip = (sockaddr*)sin;
1292                 }
1293                 break;
1294                 default:
1295                         ServerInstance->Log(DEBUG,"Ut oh, I dont know protocol %d to be set on '%s'!", protocol_family, this->nick);
1296                 break;
1297         }
1298 }
1299
1300 int userrec::GetPort()
1301 {
1302         if (this->ip == NULL)
1303                 return 0;
1304
1305         switch (this->GetProtocolFamily())
1306         {
1307 #ifdef SUPPORT_IP6LINKS
1308                 case AF_INET6:
1309                 {
1310                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1311                         return sin->sin6_port;
1312                 }
1313                 break;
1314 #endif
1315                 case AF_INET:
1316                 {
1317                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1318                         return sin->sin_port;
1319                 }
1320                 break;
1321                 default:
1322                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1323                 break;
1324         }
1325         return 0;
1326 }
1327
1328 int userrec::GetProtocolFamily()
1329 {
1330         if (this->ip == NULL)
1331                 return 0;
1332
1333         sockaddr_in* sin = (sockaddr_in*)this->ip;
1334         return sin->sin_family;
1335 }
1336
1337 const char* userrec::GetIPString()
1338 {
1339         static char buf[1024];
1340
1341         if (this->ip == NULL)
1342                 return "";
1343
1344         switch (this->GetProtocolFamily())
1345         {
1346 #ifdef SUPPORT_IP6LINKS
1347                 case AF_INET6:
1348                 {
1349                         static char temp[1024];
1350
1351                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1352                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1353                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1354                         if (*buf == ':')
1355                         {
1356                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1357                                 *temp = '0';
1358                                 return temp;
1359                         }
1360                         return buf;
1361                 }
1362                 break;
1363 #endif
1364                 case AF_INET:
1365                 {
1366                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1367                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1368                         return buf;
1369                 }
1370                 break;
1371                 default:
1372                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1373                 break;
1374         }
1375         return "";
1376 }
1377
1378 const char* userrec::GetIPString(char* buf)
1379 {
1380         if (this->ip == NULL)
1381         {
1382                 *buf = 0;
1383                 return buf;
1384         }
1385
1386         switch (this->GetProtocolFamily())
1387         {
1388 #ifdef SUPPORT_IP6LINKS
1389                 case AF_INET6:
1390                 {
1391                         static char temp[1024];
1392
1393                         sockaddr_in6* sin = (sockaddr_in6*)this->ip;
1394                         inet_ntop(sin->sin6_family, &sin->sin6_addr, buf, sizeof(buf));
1395                         /* IP addresses starting with a : on irc are a Bad Thing (tm) */
1396                         if (*buf == ':')
1397                         {
1398                                 strlcpy(&temp[1], buf, sizeof(temp) - 1);
1399                                 *temp = '0';
1400                                 strlcpy(buf, temp, sizeof(temp));
1401                         }
1402                         return buf;
1403                 }
1404                 break;
1405 #endif
1406                 case AF_INET:
1407                 {
1408                         sockaddr_in* sin = (sockaddr_in*)this->ip;
1409                         inet_ntop(sin->sin_family, &sin->sin_addr, buf, sizeof(buf));
1410                         return buf;
1411                 }
1412                 break;
1413
1414                 default:
1415                         ServerInstance->Log(DEBUG,"Ut oh, '%s' has an unknown protocol family!",this->nick);
1416                 break;
1417         }
1418         return "";
1419 }
1420
1421 /** NOTE: We cannot pass a const reference to this method.
1422  * The string is changed by the workings of the method,
1423  * so that if we pass const ref, we end up copying it to
1424  * something we can change anyway. Makes sense to just let
1425  * the compiler do that copy for us.
1426  */
1427 void userrec::Write(std::string text)
1428 {
1429         if ((this->fd < 0) || (this->fd > MAX_DESCRIPTORS))
1430                 return;
1431
1432         try
1433         {
1434                 text.append("\r\n");
1435         }
1436         catch (...)
1437         {
1438                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1439                 return;
1440         }
1441
1442         if (ServerInstance->Config->GetIOHook(this->GetPort()))
1443         {
1444                 try
1445                 {
1446                         ServerInstance->Config->GetIOHook(this->GetPort())->OnRawSocketWrite(this->fd, text.data(), text.length());
1447                 }
1448                 catch (ModuleException& modexcept)
1449                 {
1450                         ServerInstance->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason());
1451                 }
1452         }
1453         else
1454         {
1455                 this->AddWriteBuf(text);
1456         }
1457         ServerInstance->stats->statsSent += text.length();
1458         this->ServerInstance->SE->WantWrite(this);
1459 }
1460
1461 /** Write()
1462  */
1463 void userrec::Write(const char *text, ...)
1464 {
1465         va_list argsPtr;
1466         char textbuffer[MAXBUF];
1467
1468         va_start(argsPtr, text);
1469         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1470         va_end(argsPtr);
1471
1472         this->Write(std::string(textbuffer));
1473 }
1474
1475 void userrec::WriteServ(const std::string& text)
1476 {
1477         char textbuffer[MAXBUF];
1478
1479         snprintf(textbuffer,MAXBUF,":%s %s",ServerInstance->Config->ServerName,text.c_str());
1480         this->Write(std::string(textbuffer));
1481 }
1482
1483 /** WriteServ()
1484  *  Same as Write(), except `text' is prefixed with `:server.name '.
1485  */
1486 void userrec::WriteServ(const char* text, ...)
1487 {
1488         va_list argsPtr;
1489         char textbuffer[MAXBUF];
1490
1491         va_start(argsPtr, text);
1492         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1493         va_end(argsPtr);
1494
1495         this->WriteServ(std::string(textbuffer));
1496 }
1497
1498
1499 void userrec::WriteFrom(userrec *user, const std::string &text)
1500 {
1501         char tb[MAXBUF];
1502
1503         snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),text.c_str());
1504
1505         this->Write(std::string(tb));
1506 }
1507
1508
1509 /* write text from an originating user to originating user */
1510
1511 void userrec::WriteFrom(userrec *user, const char* text, ...)
1512 {
1513         va_list argsPtr;
1514         char textbuffer[MAXBUF];
1515
1516         va_start(argsPtr, text);
1517         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1518         va_end(argsPtr);
1519
1520         this->WriteFrom(user, std::string(textbuffer));
1521 }
1522
1523
1524 /* write text to an destination user from a source user (e.g. user privmsg) */
1525
1526 void userrec::WriteTo(userrec *dest, const char *data, ...)
1527 {
1528         char textbuffer[MAXBUF];
1529         va_list argsPtr;
1530
1531         va_start(argsPtr, data);
1532         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
1533         va_end(argsPtr);
1534
1535         this->WriteTo(dest, std::string(textbuffer));
1536 }
1537
1538 void userrec::WriteTo(userrec *dest, const std::string &data)
1539 {
1540         dest->WriteFrom(this, data);
1541 }
1542
1543
1544 void userrec::WriteCommon(const char* text, ...)
1545 {
1546         char textbuffer[MAXBUF];
1547         va_list argsPtr;
1548
1549         if (this->registered != REG_ALL)
1550                 return;
1551
1552         va_start(argsPtr, text);
1553         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1554         va_end(argsPtr);
1555
1556         this->WriteCommon(std::string(textbuffer));
1557 }
1558
1559 void userrec::WriteCommon(const std::string &text)
1560 {
1561         try
1562         {
1563                 bool sent_to_at_least_one = false;
1564
1565                 if (this->registered != REG_ALL)
1566                         return;
1567
1568                 uniq_id++;
1569
1570                 for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1571                 {
1572                         ucrec *n = *v;
1573                         if (n->channel)
1574                         {
1575                                 CUList *ulist= n->channel->GetUsers();
1576
1577                                 for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1578                                 {
1579                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1580                                         {
1581                                                 already_sent[i->second->fd] = uniq_id;
1582                                                 i->second->WriteFrom(this, std::string(text));
1583                                                 sent_to_at_least_one = true;
1584                                         }
1585                                 }
1586                         }
1587                 }
1588
1589                 /*
1590                  * if the user was not in any channels, no users will receive the text. Make sure the user
1591                  * receives their OWN message for WriteCommon
1592                  */
1593                 if (!sent_to_at_least_one)
1594                 {
1595                         this->WriteFrom(this,std::string(text));
1596                 }
1597         }
1598
1599         catch (...)
1600         {
1601                 ServerInstance->Log(DEBUG,"Exception in userrec::WriteCommon()");
1602         }
1603 }
1604
1605
1606 /* write a formatted string to all users who share at least one common
1607  * channel, NOT including the source user e.g. for use in QUIT
1608  */
1609
1610 void userrec::WriteCommonExcept(const char* text, ...)
1611 {
1612         char textbuffer[MAXBUF];
1613         va_list argsPtr;
1614
1615         va_start(argsPtr, text);
1616         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1617         va_end(argsPtr);
1618
1619         this->WriteCommonExcept(std::string(textbuffer));
1620 }
1621
1622 void userrec::WriteCommonExcept(const std::string &text)
1623 {
1624         bool quit_munge = false;
1625         char oper_quit[MAXBUF];
1626         char textbuffer[MAXBUF];
1627
1628         strlcpy(textbuffer, text.c_str(), MAXBUF);
1629
1630         if (this->registered != REG_ALL)
1631                 return;
1632
1633         uniq_id++;
1634
1635         /* TODO: We need some form of WriteCommonExcept that will send two lines, one line to
1636          * opers and the other line to non-opers, then all this hidebans and hidesplits gunk
1637          * can go byebye.
1638          */
1639         if (ServerInstance->Config->HideSplits)
1640         {
1641                 char* check = textbuffer + 6;
1642
1643                 if (!strncasecmp(textbuffer, "QUIT :",6))
1644                 {
1645                         std::stringstream split(check);
1646                         std::string server_one;
1647                         std::string server_two;
1648
1649                         split >> server_one;
1650                         split >> server_two;
1651
1652                         if ((ServerInstance->FindServerName(server_one)) && (ServerInstance->FindServerName(server_two)))
1653                         {
1654                                 strlcpy(oper_quit,textbuffer,MAXQUIT);
1655                                 strlcpy(check,"*.net *.split",MAXQUIT);
1656                                 quit_munge = true;
1657                         }
1658                 }
1659         }
1660
1661         if ((ServerInstance->Config->HideBans) && (!quit_munge))
1662         {
1663                 if ((!strncasecmp(textbuffer, "QUIT :G-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :K-Lined:",14))
1664                 || (!strncasecmp(textbuffer, "QUIT :Q-Lined:",14)) || (!strncasecmp(textbuffer, "QUIT :Z-Lined:",14)))
1665                 {
1666                         char* check = textbuffer + 13;
1667                         strlcpy(oper_quit,textbuffer,MAXQUIT);
1668                         *check = 0;  // We don't need to strlcpy, we just chop it from the :
1669                         quit_munge = true;
1670                 }
1671         }
1672
1673         for (std::vector<ucrec*>::const_iterator v = this->chans.begin(); v != this->chans.end(); v++)
1674         {
1675                 ucrec* n = *v;
1676                 if (n->channel)
1677                 {
1678                         CUList *ulist= n->channel->GetUsers();
1679
1680                         for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
1681                         {
1682                                 if (this != i->second)
1683                                 {
1684                                         if ((IS_LOCAL(i->second)) && (already_sent[i->second->fd] != uniq_id))
1685                                         {
1686                                                 already_sent[i->second->fd] = uniq_id;
1687                                                 if (quit_munge)
1688                                                         i->second->WriteFrom(this, *i->second->oper ? std::string(oper_quit) : std::string(textbuffer));
1689                                                 else
1690                                                         i->second->WriteFrom(this, std::string(textbuffer));
1691                                         }
1692                                 }
1693                         }
1694                 }
1695         }
1696
1697 }
1698
1699 void userrec::WriteWallOps(const std::string &text)
1700 {
1701         /* Does nothing if theyre not opered */
1702         if ((!*this->oper) && (IS_LOCAL(this)))
1703                 return;
1704
1705         std::string wallop = "WALLOPS :";
1706
1707         try
1708         {
1709                 wallop.append(text);
1710         }
1711         catch (...)
1712         {
1713                 ServerInstance->Log(DEBUG,"Exception in userrec::Write() std::string::append");
1714                 return;
1715         }
1716
1717         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1718         {
1719                 userrec* t = *i;
1720                 if ((IS_LOCAL(t)) && (t->modes[UM_WALLOPS]))
1721                         this->WriteTo(t,wallop);
1722         }
1723 }
1724
1725 void userrec::WriteWallOps(const char* text, ...)
1726 {
1727         char textbuffer[MAXBUF];
1728         va_list argsPtr;
1729
1730         va_start(argsPtr, text);
1731         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1732         va_end(argsPtr);
1733
1734         this->WriteWallOps(std::string(textbuffer));
1735 }
1736
1737 /* return 0 or 1 depending if users u and u2 share one or more common channels
1738  * (used by QUIT, NICK etc which arent channel specific notices)
1739  *
1740  * The old algorithm in 1.0 for this was relatively inefficient, iterating over
1741  * the first users channels then the second users channels within the outer loop,
1742  * therefore it was a maximum of x*y iterations (upon returning 0 and checking
1743  * all possible iterations). However this new function instead checks against the
1744  * channel's userlist in the inner loop which is a std::map<userrec*,userrec*>
1745  * and saves us time as we already know what pointer value we are after.
1746  * Don't quote me on the maths as i am not a mathematician or computer scientist,
1747  * but i believe this algorithm is now x+(log y) maximum iterations instead.
1748  */
1749 bool userrec::SharesChannelWith(userrec *other)
1750 {
1751         if ((!other) || (this->registered != REG_ALL) || (other->registered != REG_ALL))
1752                 return false;
1753
1754         /* Outer loop */
1755         for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1756         {
1757                 /* Fetch the channel from the user */
1758                 ucrec* user_channel = *i;
1759
1760                 if (user_channel->channel)
1761                 {
1762                         /* Eliminate the inner loop (which used to be ~equal in size to the outer loop)
1763                          * by replacing it with a map::find which *should* be more efficient
1764                          */
1765                         if (user_channel->channel->HasUser(other))
1766                                 return true;
1767                 }
1768         }
1769         return false;
1770 }
1771
1772 int userrec::CountChannels()
1773 {
1774         return ChannelCount;
1775 }
1776
1777 void userrec::ModChannelCount(int n)
1778 {
1779         ChannelCount += n;
1780 }
1781
1782 bool userrec::ChangeName(const char* gecos)
1783 {
1784         if (!strcmp(gecos, this->fullname))
1785                 return true;
1786
1787         if (IS_LOCAL(this))
1788         {
1789                 int MOD_RESULT = 0;
1790                 FOREACH_RESULT(I_OnChangeLocalUserGECOS,OnChangeLocalUserGECOS(this,gecos));
1791                 if (MOD_RESULT)
1792                         return false;
1793                 FOREACH_MOD(I_OnChangeName,OnChangeName(this,gecos));
1794         }
1795         strlcpy(this->fullname,gecos,MAXGECOS+1);
1796         return true;
1797 }
1798
1799 bool userrec::ChangeDisplayedHost(const char* host)
1800 {
1801         if (!strcmp(host, this->dhost))
1802                 return true;
1803
1804         if (IS_LOCAL(this))
1805         {
1806                 int MOD_RESULT = 0;
1807                 FOREACH_RESULT(I_OnChangeLocalUserHost,OnChangeLocalUserHost(this,host));
1808                 if (MOD_RESULT)
1809                         return false;
1810                 FOREACH_MOD(I_OnChangeHost,OnChangeHost(this,host));
1811         }
1812         if (this->ServerInstance->Config->CycleHosts)
1813                 this->WriteCommonExcept("%s","QUIT :Changing hosts");
1814
1815         strlcpy(this->dhost,host,63);
1816
1817         if (this->ServerInstance->Config->CycleHosts)
1818         {
1819                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1820                 {
1821                         if ((*i)->channel)
1822                         {
1823                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1824                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1825                                 if (n.length() > 0)
1826                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1827                         }
1828                 }
1829         }
1830
1831         if (IS_LOCAL(this))
1832                 this->WriteServ("396 %s %s :is now your hidden host",this->nick,this->dhost);
1833
1834         return true;
1835 }
1836
1837 bool userrec::ChangeIdent(const char* newident)
1838 {
1839         if (!strcmp(newident, this->ident))
1840                 return true;
1841
1842         if (this->ServerInstance->Config->CycleHosts)
1843                 this->WriteCommonExcept("%s","QUIT :Changing ident");
1844
1845         strlcpy(this->ident, newident, IDENTMAX+2);
1846
1847         if (this->ServerInstance->Config->CycleHosts)
1848         {
1849                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1850                 {
1851                         if ((*i)->channel)
1852                         {
1853                                 (*i)->channel->WriteAllExceptSender(this, false, 0, "JOIN %s", (*i)->channel->name);
1854                                 std::string n = this->ServerInstance->Modes->ModeString(this, (*i)->channel);
1855                                 if (n.length() > 0)
1856                                         (*i)->channel->WriteAllExceptSender(this, true, 0, "MODE %s +%s", (*i)->channel->name, n.c_str());
1857                         }
1858                 }
1859         }
1860
1861         return true;
1862 }
1863
1864 void userrec::NoticeAll(char* text, ...)
1865 {
1866         char textbuffer[MAXBUF];
1867         char formatbuffer[MAXBUF];
1868         va_list argsPtr;
1869
1870         va_start(argsPtr, text);
1871         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1872         va_end(argsPtr);
1873
1874         snprintf(formatbuffer,MAXBUF,"NOTICE $* :%s",textbuffer);
1875
1876         for (std::vector<userrec*>::const_iterator i = ServerInstance->local_users.begin(); i != ServerInstance->local_users.end(); i++)
1877         {
1878                 userrec* t = *i;
1879                 t->WriteFrom(this, std::string(formatbuffer));
1880         }
1881 }
1882
1883
1884 std::string userrec::ChannelList(userrec* source)
1885 {
1886         try
1887         {
1888                 std::string list;
1889                 for (std::vector<ucrec*>::const_iterator i = this->chans.begin(); i != this->chans.end(); i++)
1890                 {
1891                         ucrec* rec = *i;
1892
1893                         if(rec->channel && rec->channel->name)
1894                         {
1895                                 /* If the target is the same as the sender, let them see all their channels.
1896                                  * If the channel is NOT private/secret OR the user shares a common channel
1897                                  * If the user is an oper, and the <options:operspywhois> option is set.
1898                                  */
1899                                 if ((source == this) || (*source->oper && ServerInstance->Config->OperSpyWhois) || (((!rec->channel->modes[CM_PRIVATE]) && (!rec->channel->modes[CM_SECRET])) || (rec->channel->HasUser(source))))
1900                                 {
1901                                         list.append(rec->channel->GetPrefixChar(this)).append(rec->channel->name).append(" ");
1902                                 }
1903                         }
1904                 }
1905                 return list;
1906         }
1907         catch (...)
1908         {
1909                 ServerInstance->Log(DEBUG,"Exception in userrec::ChannelList()");
1910                 return "";
1911         }
1912 }
1913
1914 void userrec::SplitChanList(userrec* dest, const std::string &cl)
1915 {
1916         std::string line;
1917         std::ostringstream prefix;
1918         std::string::size_type start, pos, length;
1919
1920         try
1921         {
1922                 prefix << this->nick << " " << dest->nick << " :";
1923                 line = prefix.str();
1924                 int namelen = strlen(ServerInstance->Config->ServerName) + 6;
1925
1926                 for (start = 0; (pos = cl.find(' ', start)) != std::string::npos; start = pos+1)
1927                 {
1928                         length = (pos == std::string::npos) ? cl.length() : pos;
1929
1930                         if (line.length() + namelen + length - start > 510)
1931                         {
1932                                 this->Write(line);
1933                                 line = prefix.str();
1934                         }
1935
1936                         if(pos == std::string::npos)
1937                         {
1938                                 line.append(cl.substr(start, length - start));
1939                                 break;
1940                         }
1941                         else
1942                         {
1943                                 line.append(cl.substr(start, length - start + 1));
1944                         }
1945                 }
1946
1947                 if (line.length())
1948                 {
1949                         ServerInstance->SendWhoisLine(this, dest, 319, "%s", line.c_str());
1950                 }
1951         }
1952
1953         catch (...)
1954         {
1955                 ServerInstance->Log(DEBUG,"Exception in userrec::SplitChanList()");
1956         }
1957 }
1958
1959
1960 /* looks up a users password for their connection class (<ALLOW>/<DENY> tags)
1961  * NOTE: If the <ALLOW> or <DENY> tag specifies an ip, and this user resolves,
1962  * then their ip will be taken as 'priority' anyway, so for example,
1963  * <connect allow="127.0.0.1"> will match joe!bloggs@localhost
1964  */
1965 ConnectClass& userrec::GetClass()
1966 {
1967         for (ClassVector::iterator i = ServerInstance->Config->Classes.begin(); i != ServerInstance->Config->Classes.end(); i++)
1968         {
1969                 if ((match(this->GetIPString(),i->host.c_str(),true)) || (match(this->host,i->host.c_str())))
1970                         return *i;
1971         }
1972
1973         return *(ServerInstance->Config->Classes.begin());
1974 }
1975
1976 void userrec::PurgeEmptyChannels()
1977 {
1978         std::vector<chanrec*> to_delete;
1979
1980         // firstly decrement the count on each channel
1981         for (std::vector<ucrec*>::iterator f = this->chans.begin(); f != this->chans.end(); f++)
1982         {
1983                 ucrec* uc = *f;
1984                 if (uc->channel)
1985                 {
1986                         uc->channel->RemoveAllPrefixes(this);
1987                         if (uc->channel->DelUser(this) == 0)
1988                         {
1989                                 /* No users left in here, mark it for deletion */
1990                                 try
1991                                 {
1992                                         to_delete.push_back(uc->channel);
1993                                 }
1994                                 catch (...)
1995                                 {
1996                                         ServerInstance->Log(DEBUG,"Exception in userrec::PurgeEmptyChannels to_delete.push_back()");
1997                                 }
1998                                 uc->channel = NULL;
1999                         }
2000                 }
2001         }
2002
2003         for (std::vector<chanrec*>::iterator n = to_delete.begin(); n != to_delete.end(); n++)
2004         {
2005                 chanrec* thischan = *n;
2006                 chan_hash::iterator i2 = ServerInstance->chanlist.find(thischan->name);
2007                 if (i2 != ServerInstance->chanlist.end())
2008                 {
2009                         FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(i2->second));
2010                         DELETE(i2->second);
2011                         ServerInstance->chanlist.erase(i2);
2012                 }
2013         }
2014
2015         this->UnOper();
2016 }
2017
2018 void userrec::ShowMOTD()
2019 {
2020         if (!ServerInstance->Config->MOTD.size())
2021         {
2022                 this->WriteServ("422 %s :Message of the day file is missing.",this->nick);
2023                 return;
2024         }
2025         this->WriteServ("375 %s :%s message of the day", this->nick, ServerInstance->Config->ServerName);
2026
2027         for (unsigned int i = 0; i < ServerInstance->Config->MOTD.size(); i++)
2028                 this->WriteServ("372 %s :- %s",this->nick,ServerInstance->Config->MOTD[i].c_str());
2029
2030         this->WriteServ("376 %s :End of message of the day.", this->nick);
2031 }
2032
2033 void userrec::ShowRULES()
2034 {
2035         if (!ServerInstance->Config->RULES.size())
2036         {
2037                 this->WriteServ("NOTICE %s :Rules file is missing.",this->nick);
2038                 return;
2039         }
2040         this->WriteServ("NOTICE %s :%s rules",this->nick,ServerInstance->Config->ServerName);
2041
2042         for (unsigned int i = 0; i < ServerInstance->Config->RULES.size(); i++)
2043                 this->WriteServ("NOTICE %s :%s",this->nick,ServerInstance->Config->RULES[i].c_str());
2044
2045         this->WriteServ("NOTICE %s :End of %s rules.",this->nick,ServerInstance->Config->ServerName);
2046 }
2047
2048 void userrec::HandleEvent(EventType et, int errornum)
2049 {
2050         /* WARNING: May delete this user! */
2051         try
2052         {
2053                 switch (et)
2054                 {
2055                         case EVENT_READ:
2056                                 ServerInstance->ProcessUser(this);
2057                         break;
2058                         case EVENT_WRITE:
2059                                 this->FlushWriteBuf();
2060                         break;
2061                         case EVENT_ERROR:
2062                                 this->SetWriteError(errornum ? strerror(errornum) : "EOF from client");
2063                         break;
2064                 }
2065         }
2066         catch (...)
2067         {
2068                 ServerInstance->Log(DEBUG,"Exception in userrec::HandleEvent intercepted");
2069         }
2070 }
2071