src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 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 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #ifdef USE_KQUEUE
  31 #include <sys/types.h>
  32 #include <sys/event.h>
  33 #include <sys/time.h>
  34 #endif
  35 #include <cstdio>
  36 #include <time.h>
  37 #include <string>
  38 #ifdef GCC3
  39 #include <ext/hash_map>
  40 #else
  41 #include <hash_map>
  42 #endif
  43 #include <map>
  44 #include <sstream>
  45 #include <vector>
  46 #include <errno.h>
  47 #include <deque>
  48 #include <errno.h>
  49 #include <unistd.h>
  50 #include <sched.h>
  51 #include "connection.h"
  52 #include "users.h"
  53 #include "servers.h"
  54 #include "ctables.h"
  55 #include "globals.h"
  56 #include "modules.h"
  57 #include "dynamic.h"
  58 #include "wildcard.h"
  59 #include "message.h"
  60 #include "mode.h"
  61 #include "commands.h"
  62 #include "xline.h"
  63 #include "inspstring.h"
  64 #include "dnsqueue.h"
  65
  66 #ifdef GCC3
  67 #define nspace __gnu_cxx
  68 #else
  69 #define nspace std
  70 #endif
  71
  72 int LogLevel = DEFAULT;
  73 char ServerName[MAXBUF];
  74 char Network[MAXBUF];
  75 char ServerDesc[MAXBUF];
  76 char AdminName[MAXBUF];
  77 char AdminEmail[MAXBUF];
  78 char AdminNick[MAXBUF];
  79 char diepass[MAXBUF];
  80 char restartpass[MAXBUF];
  81 char motd[MAXBUF];
  82 char rules[MAXBUF];
  83 char list[MAXBUF];
  84 char PrefixQuit[MAXBUF];
  85 char DieValue[MAXBUF];
  86 char DNSServer[MAXBUF];
  87 int debugging =  0;
  88 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  89 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  90 int DieDelay  =  5;
  91 time_t startup_time = time(NULL);
  92 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  93 extern int MaxWhoResults;
  94 time_t nb_start = 0;
  95 int dns_timeout = 5;
  96
  97 char DisabledCommands[MAXBUF];
  98
  99 bool AllowHalfop = true;
 100 bool AllowProtect = true;
 101 bool AllowFounder = true;
 102
 103 extern std::vector<Module*> modules;
 104 std::vector<std::string> module_names;
 105 extern std::vector<ircd_module*> factory;
 106
 107 extern int MODCOUNT;
 108 int openSockfd[MAXSOCKS];
 109 bool nofork = false;
 110 bool unlimitcore = false;
 111
 112 time_t TIME = time(NULL), OLDTIME = time(NULL);
 113
 114 #ifdef USE_KQUEUE
 115 int kq, lkq, skq;
 116 #endif
 117
 118 namespace nspace
 119 {
 120 #ifdef GCC34
 121         template<> struct hash<in_addr>
 122 #else
 123         template<> struct nspace::hash<in_addr>
 124 #endif
 125         {
 126                 size_t operator()(const struct in_addr &a) const
 127                 {
 128                         size_t q;
 129                         memcpy(&q,&a,sizeof(size_t));
 130                         return q;
 131                 }
 132         };
 133 #ifdef GCC34
 134         template<> struct hash<string>
 135 #else
 136         template<> struct nspace::hash<string>
 137 #endif
 138         {
 139                 size_t operator()(const string &s) const
 140                 {
 141                         char a[MAXBUF];
 142                         static struct hash<const char *> strhash;
 143                         strlcpy(a,s.c_str(),MAXBUF);
 144                         strlower(a);
 145                         return strhash(a);
 146                 }
 147         };
 148 }
 149
 150
 151 struct StrHashComp
 152 {
 153
 154         bool operator()(const string& s1, const string& s2) const
 155         {
 156                 char a[MAXBUF],b[MAXBUF];
 157                 strlcpy(a,s1.c_str(),MAXBUF);
 158                 strlcpy(b,s2.c_str(),MAXBUF);
 159                 strlower(a);
 160                 strlower(b);
 161                 return (strcasecmp(a,b) == 0);
 162         }
 163
 164 };
 165
 166 struct InAddr_HashComp
 167 {
 168
 169         bool operator()(const in_addr &s1, const in_addr &s2) const
 170         {
 171                 size_t q;
 172                 size_t p;
 173
 174                 memcpy(&q,&s1,sizeof(size_t));
 175                 memcpy(&p,&s2,sizeof(size_t));
 176
 177                 return (q == p);
 178         }
 179
 180 };
 181
 182
 183 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 184 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 185 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 186 typedef std::deque<command_t> command_table;
 187
 188 // This table references users by file descriptor.
 189 // its an array to make it VERY fast, as all lookups are referenced
 190 // by an integer, meaning there is no need for a scan/search operation.
 191 userrec* fd_ref_table[65536];
 192
 193 int statsAccept = 0, statsRefused = 0, statsUnknown = 0, statsCollisions = 0, statsDns = 0, statsDnsGood = 0, statsDnsBad = 0, statsConnects = 0, statsSent= 0, statsRecv = 0;
 194
 195 serverrec* me[32];
 196
 197 FILE *log_file;
 198
 199 user_hash clientlist;
 200 chan_hash chanlist;
 201 user_hash whowas;
 202 command_table cmdlist;
 203 file_cache MOTD;
 204 file_cache RULES;
 205 address_cache IP;
 206
 207 ClassVector Classes;
 208
 209 struct linger linger = { 0 };
 210 char MyExecutable[1024];
 211 int boundPortCount = 0;
 212 int portCount = 0, SERVERportCount = 0, ports[MAXSOCKS];
 213 int defaultRoute = 0;
 214 char ModPath[MAXBUF];
 215
 216 /* prototypes */
 217
 218 int has_channel(userrec *u, chanrec *c);
 219 int usercount(chanrec *c);
 220 int usercount_i(chanrec *c);
 221 char* Passwd(userrec *user);
 222 bool IsDenied(userrec *user);
 223 void AddWhoWas(userrec* u);
 224
 225 std::vector<long> auth_cookies;
 226 std::stringstream config_f(stringstream::in | stringstream::out);
 227
 228 std::vector<userrec*> all_opers;
 229
 230 static char already_sent[65536];
 231
 232 char lowermap[255];
 233
 234 void AddOper(userrec* user)
 235 {
 236         log(DEBUG,"Oper added to optimization list");
 237         all_opers.push_back(user);
 238 }
 239
 240 void DeleteOper(userrec* user)
 241 {
 242         for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
 243         {
 244                 if (*a == user)
 245                 {
 246                         log(DEBUG,"Oper removed from optimization list");
 247                         all_opers.erase(a);
 248                         return;
 249                 }
 250         }
 251 }
 252
 253 long GetRevision()
 254 {
 255         char Revision[] = "$Revision$";
 256         char *s1 = Revision;
 257         char *savept;
 258         char *v2 = strtok_r(s1," ",&savept);
 259         s1 = savept;
 260         v2 = strtok_r(s1," ",&savept);
 261         s1 = savept;
 262         return (long)(atof(v2)*10000);
 263 }
 264
 265
 266 std::string getservername()
 267 {
 268         return ServerName;
 269 }
 270
 271 std::string getserverdesc()
 272 {
 273         return ServerDesc;
 274 }
 275
 276 std::string getnetworkname()
 277 {
 278         return Network;
 279 }
 280
 281 std::string getadminname()
 282 {
 283         return AdminName;
 284 }
 285
 286 std::string getadminemail()
 287 {
 288         return AdminEmail;
 289 }
 290
 291 std::string getadminnick()
 292 {
 293         return AdminNick;
 294 }
 295
 296 void log(int level,char *text, ...)
 297 {
 298         char textbuffer[MAXBUF];
 299         va_list argsPtr;
 300         time_t rawtime;
 301         struct tm * timeinfo;
 302         if (level < LogLevel)
 303                 return;
 304
 305         time(&rawtime);
 306         timeinfo = localtime (&rawtime);
 307
 308         if (log_file)
 309         {
 310                 char b[MAXBUF];
 311                 va_start (argsPtr, text);
 312                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 313                 va_end(argsPtr);
 314                 strlcpy(b,asctime(timeinfo),MAXBUF);
 315                 b[24] = ':';    // we know this is the end of the time string
 316                 fprintf(log_file,"%s %s\n",b,textbuffer);
 317                 if (nofork)
 318                 {
 319                         // nofork enabled? display it on terminal too
 320                         printf("%s %s\n",b,textbuffer);
 321                 }
 322         }
 323 }
 324
 325 void readfile(file_cache &F, const char* fname)
 326 {
 327         FILE* file;
 328         char linebuf[MAXBUF];
 329
 330         log(DEBUG,"readfile: loading %s",fname);
 331         F.clear();
 332         file =  fopen(fname,"r");
 333         if (file)
 334         {
 335                 while (!feof(file))
 336                 {
 337                         fgets(linebuf,sizeof(linebuf),file);
 338                         linebuf[strlen(linebuf)-1]='\0';
 339                         if (linebuf[0] == 0)
 340                         {
 341                                 strcpy(linebuf,"  ");
 342                         }
 343                         if (!feof(file))
 344                         {
 345                                 F.push_back(linebuf);
 346                         }
 347                 }
 348                 fclose(file);
 349         }
 350         else
 351         {
 352                 log(DEBUG,"readfile: failed to load file: %s",fname);
 353         }
 354         log(DEBUG,"readfile: loaded %s, %lu lines",fname,(unsigned long)F.size());
 355 }
 356
 357 void ReadConfig(bool bail, userrec* user)
 358 {
 359         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 360         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF];
 361         ConnectClass c;
 362         std::stringstream errstr;
 363
 364         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 365         {
 366                 errstr.seekg(0);
 367                 if (bail)
 368                 {
 369                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 370                         Exit(0);
 371                 }
 372                 else
 373                 {
 374                         char dataline[1024];
 375                         if (user)
 376                         {
 377                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 378                                 while (!errstr.eof())
 379                                 {
 380                                         errstr.getline(dataline,1024);
 381                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 382                                 }
 383                         }
 384                         else
 385                         {
 386                                 WriteOpers("There were errors in the configuration file:",user->nick);
 387                                 while (!errstr.eof())
 388                                 {
 389                                         errstr.getline(dataline,1024);
 390                                         WriteOpers(dataline);
 391                                 }
 392                         }
 393                         return;
 394                 }
 395         }
 396
 397         ConfValue("server","name",0,ServerName,&config_f);
 398         ConfValue("server","description",0,ServerDesc,&config_f);
 399         ConfValue("server","network",0,Network,&config_f);
 400         ConfValue("admin","name",0,AdminName,&config_f);
 401         ConfValue("admin","email",0,AdminEmail,&config_f);
 402         ConfValue("admin","nick",0,AdminNick,&config_f);
 403         ConfValue("files","motd",0,motd,&config_f);
 404         ConfValue("files","rules",0,rules,&config_f);
 405         ConfValue("power","diepass",0,diepass,&config_f);
 406         ConfValue("power","pause",0,pauseval,&config_f);
 407         ConfValue("power","restartpass",0,restartpass,&config_f);
 408         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 409         ConfValue("die","value",0,DieValue,&config_f);
 410         ConfValue("options","loglevel",0,dbg,&config_f);
 411         ConfValue("options","netbuffersize",0,NB,&config_f);
 412         ConfValue("options","maxwho",0,MW,&config_f);
 413         ConfValue("options","allowhalfop",0,AH,&config_f);
 414         ConfValue("options","allowprotect",0,AP,&config_f);
 415         ConfValue("options","allowfounder",0,AF,&config_f);
 416         ConfValue("dns","server",0,DNSServer,&config_f);
 417         ConfValue("dns","timeout",0,DNT,&config_f);
 418         ConfValue("options","moduledir",0,ModPath,&config_f);
 419         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 420
 421         NetBufferSize = atoi(NB);
 422         MaxWhoResults = atoi(MW);
 423         dns_timeout = atoi(DNT);
 424         if (!dns_timeout)
 425                 dns_timeout = 5;
 426         if (!DNSServer[0])
 427                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 428         if (!ModPath[0])
 429                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 430         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 431         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 432         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 433         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 434         {
 435                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 436                 NetBufferSize = 10240;
 437         }
 438         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 439         {
 440                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 441                 MaxWhoResults = 128;
 442         }
 443         if (!strcmp(dbg,"debug"))
 444                 LogLevel = DEBUG;
 445         if (!strcmp(dbg,"verbose"))
 446                 LogLevel = VERBOSE;
 447         if (!strcmp(dbg,"default"))
 448                 LogLevel = DEFAULT;
 449         if (!strcmp(dbg,"sparse"))
 450                 LogLevel = SPARSE;
 451         if (!strcmp(dbg,"none"))
 452                 LogLevel = NONE;
 453         readfile(MOTD,motd);
 454         log(DEFAULT,"Reading message of the day...");
 455         readfile(RULES,rules);
 456         log(DEFAULT,"Reading connect classes...");
 457         Classes.clear();
 458         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 459         {
 460                 strcpy(Value,"");
 461                 ConfValue("connect","allow",i,Value,&config_f);
 462                 ConfValue("connect","timeout",i,timeout,&config_f);
 463                 ConfValue("connect","flood",i,flood,&config_f);
 464                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 465                 ConfValue("connect","threshold",i,thold,&config_f);
 466                 if (Value[0])
 467                 {
 468                         strlcpy(c.host,Value,MAXBUF);
 469                         c.type = CC_ALLOW;
 470                         strlcpy(Value,"",MAXBUF);
 471                         ConfValue("connect","password",i,Value,&config_f);
 472                         strlcpy(c.pass,Value,MAXBUF);
 473                         c.registration_timeout = 90; // default is 2 minutes
 474                         c.pingtime = 120;
 475                         c.flood = atoi(flood);
 476                         c.threshold = 5;
 477                         if (atoi(thold)>0)
 478                         {
 479                                 c.threshold = atoi(thold);
 480                         }
 481                         if (atoi(timeout)>0)
 482                         {
 483                                 c.registration_timeout = atoi(timeout);
 484                         }
 485                         if (atoi(pfreq)>0)
 486                         {
 487                                 c.pingtime = atoi(pfreq);
 488                         }
 489                         Classes.push_back(c);
 490                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%lu flood=%lu",c.host,c.pass,(unsigned long)c.registration_timeout,(unsigned long)c.flood);
 491                 }
 492                 else
 493                 {
 494                         ConfValue("connect","deny",i,Value,&config_f);
 495                         strlcpy(c.host,Value,MAXBUF);
 496                         c.type = CC_DENY;
 497                         Classes.push_back(c);
 498                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 499                 }
 500
 501         }
 502         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 503         read_xline_defaults();
 504         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 505         apply_lines();
 506         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 507         if (!bail)
 508         {
 509                 log(DEFAULT,"Adding and removing modules due to rehash...");
 510
 511                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 512
 513                 // store the old module names
 514                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 515                 {
 516                         old_module_names.push_back(*t);
 517                 }
 518
 519                 // get the new module names
 520                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 521                 {
 522                         ConfValue("module","name",count2,Value,&config_f);
 523                         new_module_names.push_back(Value);
 524                 }
 525
 526                 // now create a list of new modules that are due to be loaded
 527                 // and a seperate list of modules which are due to be unloaded
 528                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 529                 {
 530                         bool added = true;
 531                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 532                         {
 533                                 if (*old == *_new)
 534                                         added = false;
 535                         }
 536                         if (added)
 537                                 added_modules.push_back(*_new);
 538                 }
 539                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 540                 {
 541                         bool removed = true;
 542                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 543                         {
 544                                 if (*newm == *oldm)
 545                                         removed = false;
 546                         }
 547                         if (removed)
 548                                 removed_modules.push_back(*oldm);
 549                 }
 550                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 551                 // to be removed.
 552                 int rem = 0, add = 0;
 553                 if (!removed_modules.empty())
 554                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 555                 {
 556                         if (UnloadModule(removing->c_str()))
 557                         {
 558                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 559                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 560                                 rem++;
 561                         }
 562                         else
 563                         {
 564                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 565                         }
 566                 }
 567                 if (!added_modules.empty())
 568                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 569                 {
 570                         if (LoadModule(adding->c_str()))
 571                         {
 572                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 573                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 574                                 add++;
 575                         }
 576                         else
 577                         {
 578                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 579                         }
 580                 }
 581                 log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
 582         }
 583 }
 584
 585 /* write formatted text to a socket, in same format as printf */
 586
 587 void Write(int sock,char *text, ...)
 588 {
 589         if (sock == FD_MAGIC_NUMBER)
 590                 return;
 591         if (!text)
 592         {
 593                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 594                 return;
 595         }
 596         char textbuffer[MAXBUF];
 597         va_list argsPtr;
 598         char tb[MAXBUF];
 599
 600         va_start (argsPtr, text);
 601         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 602         va_end(argsPtr);
 603         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 604         chop(tb);
 605         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 606         {
 607                 int MOD_RESULT = 0;
 608                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 609                 if (!MOD_RESULT)
 610                         write(sock,tb,bytes > 512 ? 512 : bytes);
 611                 if (fd_ref_table[sock])
 612                 {
 613                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 614                         fd_ref_table[sock]->cmds_out++;
 615                 }
 616                 statsSent += (bytes > 512 ? 512 : bytes);
 617         }
 618 }
 619
 620 /* write a server formatted numeric response to a single socket */
 621
 622 void WriteServ(int sock, char* text, ...)
 623 {
 624         if (sock == FD_MAGIC_NUMBER)
 625                 return;
 626         if (!text)
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634
 635         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 636         va_end(argsPtr);
 637         int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 638         chop(tb);
 639         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 640         {
 641                 int MOD_RESULT = 0;
 642                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 643                 if (!MOD_RESULT)
 644                         write(sock,tb,bytes > 512 ? 512 : bytes);
 645                 if (fd_ref_table[sock])
 646                 {
 647                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 648                         fd_ref_table[sock]->cmds_out++;
 649                 }
 650                 statsSent += (bytes > 512 ? 512 : bytes);
 651         }
 652 }
 653
 654 /* write text from an originating user to originating user */
 655
 656 void WriteFrom(int sock, userrec *user,char* text, ...)
 657 {
 658         if (sock == FD_MAGIC_NUMBER)
 659                 return;
 660         if ((!text) || (!user))
 661         {
 662                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 663                 return;
 664         }
 665         char textbuffer[MAXBUF],tb[MAXBUF];
 666         va_list argsPtr;
 667         va_start (argsPtr, text);
 668
 669         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 670         va_end(argsPtr);
 671         int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 672         chop(tb);
 673         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 674         {
 675                 int MOD_RESULT = 0;
 676                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 677                 if (!MOD_RESULT)
 678                         write(sock,tb,bytes > 512 ? 512 : bytes);
 679                 if (fd_ref_table[sock])
 680                 {
 681                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 682                         fd_ref_table[sock]->cmds_out++;
 683                 }
 684                 statsSent += (bytes > 512 ? 512 : bytes);
 685         }
 686 }
 687
 688 /* write text to an destination user from a source user (e.g. user privmsg) */
 689
 690 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 691 {
 692         if ((!dest) || (!data))
 693         {
 694                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 695                 return;
 696         }
 697         if (dest->fd == FD_MAGIC_NUMBER)
 698                 return;
 699         char textbuffer[MAXBUF],tb[MAXBUF];
 700         va_list argsPtr;
 701         va_start (argsPtr, data);
 702         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 703         va_end(argsPtr);
 704         chop(tb);
 705
 706         // if no source given send it from the server.
 707         if (!source)
 708         {
 709                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 710         }
 711         else
 712         {
 713                 WriteFrom(dest->fd,source,"%s",textbuffer);
 714         }
 715 }
 716
 717 /* write formatted text from a source user to all users on a channel
 718  * including the sender (NOT for privmsg, notice etc!) */
 719
 720 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 721 {
 722         if ((!Ptr) || (!user) || (!text))
 723         {
 724                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 725                 return;
 726         }
 727         char textbuffer[MAXBUF];
 728         va_list argsPtr;
 729         va_start (argsPtr, text);
 730         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 731         va_end(argsPtr);
 732
 733         std::vector<char*> *ulist = Ptr->GetUsers();
 734         for (int j = 0; j < ulist->size(); j++)
 735         {
 736                 char* o = (*ulist)[j];
 737                 userrec* otheruser = (userrec*)o;
 738                 if (otheruser->fd != FD_MAGIC_NUMBER)
 739                         WriteTo(user,otheruser,"%s",textbuffer);
 740         }
 741 }
 742
 743 /* write formatted text from a source user to all users on a channel
 744  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 745  * users on remote servers */
 746
 747 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 748 {
 749         if ((!Ptr) || (!text))
 750         {
 751                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 752                 return;
 753         }
 754         char textbuffer[MAXBUF];
 755         va_list argsPtr;
 756         va_start (argsPtr, text);
 757         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 758         va_end(argsPtr);
 759
 760         std::vector<char*> *ulist = Ptr->GetUsers();
 761         for (int j = 0; j < ulist->size(); j++)
 762         {
 763                 char* o = (*ulist)[j];
 764                 userrec* otheruser = (userrec*)o;
 765                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 766                 {
 767                         if (!user)
 768                         {
 769                                 WriteServ(otheruser->fd,"%s",textbuffer);
 770                         }
 771                         else
 772                         {
 773                                 WriteTo(user,otheruser,"%s",textbuffer);
 774                         }
 775                 }
 776         }
 777 }
 778
 779
 780 void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
 781 {
 782         if ((!Ptr) || (!text))
 783         {
 784                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 785                 return;
 786         }
 787         char textbuffer[MAXBUF];
 788         va_list argsPtr;
 789         va_start (argsPtr, text);
 790         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 791         va_end(argsPtr);
 792
 793
 794         std::vector<char*> *ulist = Ptr->GetUsers();
 795         for (int j = 0; j < ulist->size(); j++)
 796         {
 797                 char* o = (*ulist)[j];
 798                 userrec* otheruser = (userrec*)o;
 799                 if (otheruser->fd != FD_MAGIC_NUMBER)
 800                         WriteServ(otheruser->fd,"%s",textbuffer);
 801         }
 802 }
 803
 804
 805 /* write formatted text from a source user to all users on a channel except
 806  * for the sender (for privmsg etc) */
 807
 808 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 809 {
 810         if ((!Ptr) || (!user) || (!text))
 811         {
 812                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 813                 return;
 814         }
 815         char textbuffer[MAXBUF];
 816         va_list argsPtr;
 817         va_start (argsPtr, text);
 818         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 819         va_end(argsPtr);
 820
 821         std::vector<char*> *ulist = Ptr->GetUsers();
 822         for (int j = 0; j < ulist->size(); j++)
 823         {
 824                 char* o = (*ulist)[j];
 825                 userrec* otheruser = (userrec*)o;
 826                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 827                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 828         }
 829 }
 830
 831
 832 std::string GetServerDescription(char* servername)
 833 {
 834         for (int j = 0; j < 32; j++)
 835         {
 836                 if (me[j] != NULL)
 837                 {
 838                         for (int k = 0; k < me[j]->connectors.size(); k++)
 839                         {
 840                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 841                                 {
 842                                         return me[j]->connectors[k].GetDescription();
 843                                 }
 844                         }
 845                 }
 846                 return ServerDesc; // not a remote server that can be found, it must be me.
 847         }
 848 }
 849
 850
 851 /* write a formatted string to all users who share at least one common
 852  * channel, including the source user e.g. for use in NICK */
 853
 854 void WriteCommon(userrec *u, char* text, ...)
 855 {
 856         if (!u)
 857         {
 858                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 859                 return;
 860         }
 861
 862         if (u->registered != 7) {
 863                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 864                 return;
 865         }
 866
 867         char textbuffer[MAXBUF];
 868         va_list argsPtr;
 869         va_start (argsPtr, text);
 870         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 871         va_end(argsPtr);
 872
 873         // FIX: Stops a message going to the same person more than once
 874         bzero(&already_sent,65536);
 875
 876         bool sent_to_at_least_one = false;
 877
 878         for (int i = 0; i < MAXCHANS; i++)
 879         {
 880                 if (u->chans[i].channel)
 881                 {
 882                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 883                         for (int j = 0; j < ulist->size(); j++)
 884                         {
 885                                 char* o = (*ulist)[j];
 886                                 userrec* otheruser = (userrec*)o;
 887                                 if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 888                                 {
 889                                         already_sent[otheruser->fd] = 1;
 890                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 891                                         sent_to_at_least_one = true;
 892                                 }
 893                         }
 894                 }
 895         }
 896         // if the user was not in any channels, no users will receive the text. Make sure the user
 897         // receives their OWN message for WriteCommon
 898         if (!sent_to_at_least_one)
 899         {
 900                 WriteFrom(u->fd,u,"%s",textbuffer);
 901         }
 902 }
 903
 904 /* write a formatted string to all users who share at least one common
 905  * channel, NOT including the source user e.g. for use in QUIT */
 906
 907 void WriteCommonExcept(userrec *u, char* text, ...)
 908 {
 909         if (!u)
 910         {
 911                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 912                 return;
 913         }
 914
 915         if (u->registered != 7) {
 916                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 917                 return;
 918         }
 919
 920         char textbuffer[MAXBUF];
 921         va_list argsPtr;
 922         va_start (argsPtr, text);
 923         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 924         va_end(argsPtr);
 925
 926         bzero(&already_sent,65536);
 927
 928         for (int i = 0; i < MAXCHANS; i++)
 929         {
 930                 if (u->chans[i].channel)
 931                 {
 932                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 933                         for (int j = 0; j < ulist->size(); j++)
 934                         {
 935                                 char* o = (*ulist)[j];
 936                                 userrec* otheruser = (userrec*)o;
 937                                 if (u != otheruser)
 938                                 {
 939                                         if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 940                                         {
 941                                                 already_sent[otheruser->fd] = 1;
 942                                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 943                                         }
 944                                 }
 945                         }
 946                 }
 947         }
 948 }
 949
 950 void WriteOpers(char* text, ...)
 951 {
 952         if (!text)
 953         {
 954                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 955                 return;
 956         }
 957
 958         char textbuffer[MAXBUF];
 959         va_list argsPtr;
 960         va_start (argsPtr, text);
 961         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 962         va_end(argsPtr);
 963
 964         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 965         {
 966                 userrec* a = *i;
 967                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 968                 {
 969                         if (strchr(a->modes,'s'))
 970                         {
 971                                 // send server notices to all with +s
 972                                 WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
 973                         }
 974                 }
 975         }
 976 }
 977
 978 void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
 979 {
 980         if ((!text) || (!source))
 981         {
 982                 log(DEFAULT,"*** BUG *** NoticeAllOpers was given an invalid parameter");
 983                 return;
 984         }
 985
 986         char textbuffer[MAXBUF];
 987         va_list argsPtr;
 988         va_start (argsPtr, text);
 989         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 990         va_end(argsPtr);
 991
 992         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 993         {
 994                 userrec* a = *i;
 995                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 996                 {
 997                         if (strchr(a->modes,'s'))
 998                         {
 999                                 // send server notices to all with +s
1000                                 WriteServ(a->fd,"NOTICE %s :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
1001                         }
1002                 }
1003         }
1004
1005         if (!local_only)
1006         {
1007                 char buffer[MAXBUF];
1008                 snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
1009                 NetSendToAll(buffer);
1010         }
1011 }
1012
1013 // returns TRUE of any users on channel C occupy server 'servername'.
1014
1015 bool ChanAnyOnThisServer(chanrec *c,char* servername)
1016 {
1017         log(DEBUG,"ChanAnyOnThisServer");
1018
1019         std::vector<char*> *ulist = c->GetUsers();
1020         for (int j = 0; j < ulist->size(); j++)
1021         {
1022                 char* o = (*ulist)[j];
1023                 userrec* user = (userrec*)o;
1024                 if (!strcasecmp(user->server,servername))
1025                         return true;
1026         }
1027         return false;
1028 }
1029
1030 // returns true if user 'u' shares any common channels with any users on server 'servername'
1031
1032 bool CommonOnThisServer(userrec* u,const char* servername)
1033 {
1034         log(DEBUG,"ChanAnyOnThisServer");
1035
1036         for (int i = 0; i < MAXCHANS; i++)
1037         {
1038                 if (u->chans[i].channel)
1039                 {
1040                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1041                         for (int j = 0; j < ulist->size(); j++)
1042                         {
1043                                 char* o = (*ulist)[j];
1044                                 userrec* user = (userrec*)o;
1045                                 if (!strcasecmp(user->server,servername))
1046                                         return true;
1047                         }
1048                 }
1049         }
1050         return false;
1051 }
1052
1053
1054 void NetSendToCommon(userrec* u, char* s)
1055 {
1056         char buffer[MAXBUF];
1057         snprintf(buffer,MAXBUF,"%s",s);
1058
1059         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1060
1061         std::string msg = buffer;
1062         FOREACH_MOD OnPacketTransmit(msg,s);
1063         strlcpy(buffer,msg.c_str(),MAXBUF);
1064
1065         for (int j = 0; j < 32; j++)
1066         {
1067                 if (me[j] != NULL)
1068                 {
1069                         for (int k = 0; k < me[j]->connectors.size(); k++)
1070                         {
1071                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1072                                 {
1073                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1074                                 }
1075                         }
1076                 }
1077         }
1078 }
1079
1080
1081 void NetSendToAll(char* s)
1082 {
1083         char buffer[MAXBUF];
1084         snprintf(buffer,MAXBUF,"%s",s);
1085
1086         log(DEBUG,"NetSendToAll: '%s'",s);
1087
1088         std::string msg = buffer;
1089         FOREACH_MOD OnPacketTransmit(msg,s);
1090         strlcpy(buffer,msg.c_str(),MAXBUF);
1091
1092         for (int j = 0; j < 32; j++)
1093         {
1094                 if (me[j] != NULL)
1095                 {
1096                         for (int k = 0; k < me[j]->connectors.size(); k++)
1097                         {
1098                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1099                         }
1100                 }
1101         }
1102 }
1103
1104 void NetSendToAllAlive(char* s)
1105 {
1106         char buffer[MAXBUF];
1107         snprintf(buffer,MAXBUF,"%s",s);
1108
1109         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1110
1111         std::string msg = buffer;
1112         FOREACH_MOD OnPacketTransmit(msg,s);
1113         strlcpy(buffer,msg.c_str(),MAXBUF);
1114
1115         for (int j = 0; j < 32; j++)
1116         {
1117                 if (me[j] != NULL)
1118                 {
1119                         for (int k = 0; k < me[j]->connectors.size(); k++)
1120                         {
1121                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1122                                 {
1123                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1124                                 }
1125                                 else
1126                                 {
1127                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1128                                 }
1129                         }
1130                 }
1131         }
1132 }
1133
1134
1135 void NetSendToOne(char* target,char* s)
1136 {
1137         char buffer[MAXBUF];
1138         snprintf(buffer,MAXBUF,"%s",s);
1139
1140         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1141
1142         std::string msg = buffer;
1143         FOREACH_MOD OnPacketTransmit(msg,s);
1144         strlcpy(buffer,msg.c_str(),MAXBUF);
1145
1146         for (int j = 0; j < 32; j++)
1147         {
1148                 if (me[j] != NULL)
1149                 {
1150                         for (int k = 0; k < me[j]->connectors.size(); k++)
1151                         {
1152                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1153                                 {
1154                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1155                                 }
1156                         }
1157                 }
1158         }
1159 }
1160
1161 void NetSendToAllExcept(const char* target,char* s)
1162 {
1163         char buffer[MAXBUF];
1164         snprintf(buffer,MAXBUF,"%s",s);
1165
1166         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1167
1168         std::string msg = buffer;
1169         FOREACH_MOD OnPacketTransmit(msg,s);
1170         strlcpy(buffer,msg.c_str(),MAXBUF);
1171
1172         for (int j = 0; j < 32; j++)
1173         {
1174                 if (me[j] != NULL)
1175                 {
1176                         for (int k = 0; k < me[j]->connectors.size(); k++)
1177                         {
1178                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1179                                 {
1180                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1181                                 }
1182                         }
1183                 }
1184         }
1185 }
1186
1187
1188 void WriteMode(const char* modes, int flags, const char* text, ...)
1189 {
1190         if ((!text) || (!modes) || (!flags))
1191         {
1192                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1193                 return;
1194         }
1195
1196         char textbuffer[MAXBUF];
1197         va_list argsPtr;
1198         va_start (argsPtr, text);
1199         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1200         va_end(argsPtr);
1201         int modelen = strlen(modes);
1202
1203         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1204         {
1205                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1206                 {
1207                         bool send_to_user = false;
1208
1209                         if (flags == WM_AND)
1210                         {
1211                                 send_to_user = true;
1212                                 for (int n = 0; n < modelen; n++)
1213                                 {
1214                                         if (!hasumode(i->second,modes[n]))
1215                                         {
1216                                                 send_to_user = false;
1217                                                 break;
1218                                         }
1219                                 }
1220                         }
1221                         else if (flags == WM_OR)
1222                         {
1223                                 send_to_user = false;
1224                                 for (int n = 0; n < modelen; n++)
1225                                 {
1226                                         if (hasumode(i->second,modes[n]))
1227                                         {
1228                                                 send_to_user = true;
1229                                                 break;
1230                                         }
1231                                 }
1232                         }
1233
1234                         if (send_to_user)
1235                         {
1236                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1237                         }
1238                 }
1239         }
1240 }
1241
1242
1243 void NoticeAll(userrec *source, bool local_only, char* text, ...)
1244 {
1245         if ((!text) || (!source))
1246         {
1247                 log(DEFAULT,"*** BUG *** NoticeAll was given an invalid parameter");
1248                 return;
1249         }
1250
1251         char textbuffer[MAXBUF];
1252         va_list argsPtr;
1253         va_start (argsPtr, text);
1254         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1255         va_end(argsPtr);
1256
1257         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1258         {
1259                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1260                 {
1261                         WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
1262                 }
1263         }
1264
1265         if (!local_only)
1266         {
1267                 char buffer[MAXBUF];
1268                 snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
1269                 NetSendToAll(buffer);
1270         }
1271
1272 }
1273
1274 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1275 {
1276         if ((!text) || (!source))
1277         {
1278                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1279                 return;
1280         }
1281
1282         char textbuffer[MAXBUF];
1283         va_list argsPtr;
1284         va_start (argsPtr, text);
1285         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1286         va_end(argsPtr);
1287
1288         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1289         {
1290                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1291                 {
1292                         if (strchr(i->second->modes,'w'))
1293                         {
1294                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1295                         }
1296                 }
1297         }
1298
1299         if (!local_only)
1300         {
1301                 char buffer[MAXBUF];
1302                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1303                 NetSendToAll(buffer);
1304         }
1305 }
1306
1307 /* convert a string to lowercase. Note following special circumstances
1308  * taken from RFC 1459. Many "official" server branches still hold to this
1309  * rule so i will too;
1310  *
1311  *  Because of IRC's scandanavian origin, the characters {}| are
1312  *  considered to be the lower case equivalents of the characters []\,
1313  *  respectively. This is a critical issue when determining the
1314  *  equivalence of two nicknames.
1315  */
1316
1317 void strlower(char *n)
1318 {
1319         if (n)
1320         {
1321                 for (char* t = n; *t; t++)
1322                         *t = lowermap[*t];
1323         }
1324 }
1325
1326
1327
1328 /* Find a user record by nickname and return a pointer to it */
1329
1330 userrec* Find(std::string nick)
1331 {
1332         user_hash::iterator iter = clientlist.find(nick);
1333
1334         if (iter == clientlist.end())
1335                 /* Couldn't find it */
1336                 return NULL;
1337
1338         return iter->second;
1339 }
1340
1341 /* find a channel record by channel name and return a pointer to it */
1342
1343 chanrec* FindChan(const char* chan)
1344 {
1345         if (!chan)
1346         {
1347                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1348                 return NULL;
1349         }
1350
1351         chan_hash::iterator iter = chanlist.find(chan);
1352
1353         if (iter == chanlist.end())
1354                 /* Couldn't find it */
1355                 return NULL;
1356
1357         return iter->second;
1358 }
1359
1360
1361 long GetMaxBans(char* name)
1362 {
1363         char CM[MAXBUF];
1364         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1365         {
1366                 ConfValue("banlist","chan",count,CM,&config_f);
1367                 if (match(name,CM))
1368                 {
1369                         ConfValue("banlist","limit",count,CM,&config_f);
1370                         return atoi(CM);
1371                 }
1372         }
1373         return 64;
1374 }
1375
1376
1377 void purge_empty_chans(userrec* u)
1378 {
1379
1380         int go_again = 1, purge = 0;
1381
1382         // firstly decrement the count on each channel
1383         for (int f = 0; f < MAXCHANS; f++)
1384         {
1385                 if (u->chans[f].channel)
1386                 {
1387                         u->chans[f].channel->DecUserCounter();
1388                         u->chans[f].channel->DelUser((char*)u);
1389                 }
1390         }
1391
1392         for (int i = 0; i < MAXCHANS; i++)
1393         {
1394                 if (u->chans[i].channel)
1395                 {
1396                         if (!usercount(u->chans[i].channel))
1397                         {
1398                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1399                                 /* kill the record */
1400                                 if (i2 != chanlist.end())
1401                                 {
1402                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1403                                         if (i2->second)
1404                                                 delete i2->second;
1405                                         chanlist.erase(i2);
1406                                         go_again = 1;
1407                                         purge++;
1408                                         u->chans[i].channel = NULL;
1409                                 }
1410                         }
1411                         else
1412                         {
1413                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1414                         }
1415                 }
1416         }
1417         log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
1418
1419         DeleteOper(u);
1420 }
1421
1422
1423 char scratch[MAXBUF];
1424 char sparam[MAXBUF];
1425
1426 char* chanmodes(chanrec *chan)
1427 {
1428         if (!chan)
1429         {
1430                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1431                 strcpy(scratch,"");
1432                 return scratch;
1433         }
1434
1435         strcpy(scratch,"");
1436         strcpy(sparam,"");
1437         if (chan->noexternal)
1438         {
1439                 strlcat(scratch,"n",MAXMODES);
1440         }
1441         if (chan->topiclock)
1442         {
1443                 strlcat(scratch,"t",MAXMODES);
1444         }
1445         if (chan->key[0])
1446         {
1447                 strlcat(scratch,"k",MAXMODES);
1448         }
1449         if (chan->limit)
1450         {
1451                 strlcat(scratch,"l",MAXMODES);
1452         }
1453         if (chan->inviteonly)
1454         {
1455                 strlcat(scratch,"i",MAXMODES);
1456         }
1457         if (chan->moderated)
1458         {
1459                 strlcat(scratch,"m",MAXMODES);
1460         }
1461         if (chan->secret)
1462         {
1463                 strlcat(scratch,"s",MAXMODES);
1464         }
1465         if (chan->c_private)
1466         {
1467                 strlcat(scratch,"p",MAXMODES);
1468         }
1469         if (chan->key[0])
1470         {
1471                 strlcat(sparam," ",MAXBUF);
1472                 strlcat(sparam,chan->key,MAXBUF);
1473         }
1474         if (chan->limit)
1475         {
1476                 char foo[24];
1477                 sprintf(foo," %lu",(unsigned long)chan->limit);
1478                 strlcat(sparam,foo,MAXBUF);
1479         }
1480         if (*chan->custom_modes)
1481         {
1482                 strlcat(scratch,chan->custom_modes,MAXMODES);
1483                 for (int z = 0; chan->custom_modes[z] != 0; z++)
1484                 {
1485                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1486                         if (extparam != "")
1487                         {
1488                                 strlcat(sparam," ",MAXBUF);
1489                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1490                         }
1491                 }
1492         }
1493         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1494         strlcat(scratch,sparam,MAXMODES);
1495         return scratch;
1496 }
1497
1498
1499 /* compile a userlist of a channel into a string, each nick seperated by
1500  * spaces and op, voice etc status shown as @ and + */
1501
1502 void userlist(userrec *user,chanrec *c)
1503 {
1504         if ((!c) || (!user))
1505         {
1506                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1507                 return;
1508         }
1509
1510         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1511
1512         std::vector<char*> *ulist = c->GetUsers();
1513         for (int i = 0; i < ulist->size(); i++)
1514         {
1515                 char* o = (*ulist)[i];
1516                 userrec* otheruser = (userrec*)o;
1517                 if ((!has_channel(user,c)) && (strchr(otheruser->modes,'i')))
1518                 {
1519                         /* user is +i, and source not on the channel, does not show
1520                          * nick in NAMES list */
1521                         continue;
1522                 }
1523                 strlcat(list,cmode(otheruser,c),MAXBUF);
1524                 strlcat(list,otheruser->nick,MAXBUF);
1525                 strlcat(list," ",MAXBUF);
1526                 if (strlen(list)>(480-NICKMAX))
1527                 {
1528                         /* list overflowed into
1529                          * multiple numerics */
1530                         WriteServ(user->fd,"%s",list);
1531                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1532                 }
1533         }
1534         /* if whats left in the list isnt empty, send it */
1535         if (list[strlen(list)-1] != ':')
1536         {
1537                 WriteServ(user->fd,"%s",list);
1538         }
1539 }
1540
1541 /* return a count of the users on a specific channel accounting for
1542  * invisible users who won't increase the count. e.g. for /LIST */
1543
1544 int usercount_i(chanrec *c)
1545 {
1546         int count = 0;
1547
1548         if (!c)
1549         {
1550                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1551                 return 0;
1552         }
1553
1554         strcpy(list,"");
1555         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1556         {
1557                 if (i->second)
1558                 {
1559                         if (has_channel(i->second,c))
1560                         {
1561                                 if (isnick(i->second->nick))
1562                                 {
1563                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1564                                         {
1565                                                 /* user is +i, and source not on the channel, does not show
1566                                                  * nick in NAMES list */
1567                                                 continue;
1568                                         }
1569                                         count++;
1570                                 }
1571                         }
1572                 }
1573         }
1574         log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
1575         return count;
1576 }
1577
1578
1579 int usercount(chanrec *c)
1580 {
1581         if (!c)
1582         {
1583                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1584                 return 0;
1585         }
1586         int count = c->GetUserCounter();
1587         log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
1588         return count;
1589 }
1590
1591
1592 /* add a channel to a user, creating the record for it if needed and linking
1593  * it to the user record */
1594
1595 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1596 {
1597         if ((!user) || (!cn))
1598         {
1599                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1600                 return 0;
1601         }
1602
1603         chanrec* Ptr;
1604         int created = 0;
1605         char cname[MAXBUF];
1606
1607         strncpy(cname,cn,MAXBUF);
1608
1609         // we MUST declare this wherever we use FOREACH_RESULT
1610         int MOD_RESULT = 0;
1611
1612         if (strlen(cname) > CHANMAX-1)
1613         {
1614                 cname[CHANMAX-1] = '\0';
1615         }
1616
1617         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1618
1619         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1620         {
1621                 return NULL; // already on the channel!
1622         }
1623
1624
1625         if (!FindChan(cname))
1626         {
1627                 MOD_RESULT = 0;
1628                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1629                 if (MOD_RESULT == 1) {
1630                         return NULL;
1631                 }
1632
1633                 /* create a new one */
1634                 log(DEBUG,"add_channel: creating: %s",cname);
1635                 {
1636                         chanlist[cname] = new chanrec();
1637
1638                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1639                         chanlist[cname]->topiclock = 1;
1640                         chanlist[cname]->noexternal = 1;
1641                         chanlist[cname]->created = TIME;
1642                         strcpy(chanlist[cname]->topic, "");
1643                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1644                         chanlist[cname]->topicset = 0;
1645                         Ptr = chanlist[cname];
1646                         log(DEBUG,"add_channel: created: %s",cname);
1647                         /* set created to 2 to indicate user
1648                          * is the first in the channel
1649                          * and should be given ops */
1650                         created = 2;
1651                 }
1652         }
1653         else
1654         {
1655                 /* channel exists, just fish out a pointer to its struct */
1656                 Ptr = FindChan(cname);
1657                 if (Ptr)
1658                 {
1659                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1660
1661                         // the override flag allows us to bypass channel modes
1662                         // and bans (used by servers)
1663                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1664                         {
1665                                 log(DEBUG,"Not overriding...");
1666                                 MOD_RESULT = 0;
1667                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1668                                 if (MOD_RESULT == 1) {
1669                                         return NULL;
1670                                 }
1671                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1672
1673                                 if (!MOD_RESULT)
1674                                 {
1675                                         log(DEBUG,"add_channel: checking key, invite, etc");
1676                                         MOD_RESULT = 0;
1677                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1678                                         if (MOD_RESULT == 0)
1679                                         {
1680                                                 if (Ptr->key[0])
1681                                                 {
1682                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1683                                                         if (!key)
1684                                                         {
1685                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1686                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1687                                                                 return NULL;
1688                                                         }
1689                                                         else
1690                                                         {
1691                                                                 if (strcasecmp(key,Ptr->key))
1692                                                                 {
1693                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1694                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1695                                                                         return NULL;
1696                                                                 }
1697                                                         }
1698                                                 }
1699                                                 log(DEBUG,"add_channel: no key");
1700                                         }
1701                                         MOD_RESULT = 0;
1702                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1703                                         if (MOD_RESULT == 0)
1704                                         {
1705                                                 if (Ptr->inviteonly)
1706                                                 {
1707                                                         log(DEBUG,"add_channel: channel is +i");
1708                                                         if (user->IsInvited(Ptr->name))
1709                                                         {
1710                                                                 /* user was invited to channel */
1711                                                                 /* there may be an optional channel NOTICE here */
1712                                                         }
1713                                                         else
1714                                                         {
1715                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1716                                                                 return NULL;
1717                                                         }
1718                                                 }
1719                                                 log(DEBUG,"add_channel: channel is not +i");
1720                                         }
1721                                         MOD_RESULT = 0;
1722                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1723                                         if (MOD_RESULT == 0)
1724                                         {
1725                                                 if (Ptr->limit)
1726                                                 {
1727                                                         if (usercount(Ptr) >= Ptr->limit)
1728                                                         {
1729                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1730                                                                 return NULL;
1731                                                         }
1732                                                 }
1733                                         }
1734                                         log(DEBUG,"add_channel: about to walk banlist");
1735                                         MOD_RESULT = 0;
1736                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1737                                         if (MOD_RESULT == 0)
1738                                         {
1739                                                 /* check user against the channel banlist */
1740                                                 if (Ptr)
1741                                                 {
1742                                                         if (Ptr->bans.size())
1743                                                         {
1744                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1745                                                                 {
1746                                                                         if (match(user->GetFullHost(),i->data))
1747                                                                         {
1748                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1749                                                                                 return NULL;
1750                                                                         }
1751                                                                 }
1752                                                         }
1753                                                 }
1754                                                 log(DEBUG,"add_channel: bans checked");
1755                                         }
1756
1757                                 }
1758
1759
1760                                 if ((Ptr) && (user))
1761                                 {
1762                                         user->RemoveInvite(Ptr->name);
1763                                 }
1764
1765                                 log(DEBUG,"add_channel: invites removed");
1766
1767                         }
1768                         else
1769                         {
1770                                 log(DEBUG,"Overridden checks");
1771                         }
1772
1773
1774                 }
1775                 created = 1;
1776         }
1777
1778         log(DEBUG,"Passed channel checks");
1779
1780         for (int index =0; index != MAXCHANS; index++)
1781         {
1782                 log(DEBUG,"Check location %d",index);
1783                 if (user->chans[index].channel == NULL)
1784                 {
1785                         log(DEBUG,"Adding into their channel list at location %d",index);
1786
1787                         if (created == 2)
1788                         {
1789                                 /* first user in is given ops */
1790                                 user->chans[index].uc_modes = UCMODE_OP;
1791                         }
1792                         else
1793                         {
1794                                 user->chans[index].uc_modes = 0;
1795                         }
1796                         user->chans[index].channel = Ptr;
1797                         Ptr->IncUserCounter();
1798                         Ptr->AddUser((char*)user);
1799                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1800
1801                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1802                         {
1803                                 // use the stamdard J token with no privilages.
1804                                 char buffer[MAXBUF];
1805                                 if (created == 2)
1806                                 {
1807                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1808                                 }
1809                                 else
1810                                 {
1811                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1812                                 }
1813                                 NetSendToAll(buffer);
1814                         }
1815
1816                         log(DEBUG,"Sent JOIN to client");
1817
1818                         if (Ptr->topicset)
1819                         {
1820                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1821                                 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
1822                         }
1823                         userlist(user,Ptr);
1824                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1825                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1826                         //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
1827                         FOREACH_MOD OnUserJoin(user,Ptr);
1828                         return Ptr;
1829                 }
1830         }
1831         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1832         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1833         return NULL;
1834 }
1835
1836 /* remove a channel from a users record, and remove the record from memory
1837  * if the channel has become empty */
1838
1839 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1840 {
1841         if ((!user) || (!cname))
1842         {
1843                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1844                 return NULL;
1845         }
1846
1847         chanrec* Ptr;
1848
1849         if ((!cname) || (!user))
1850         {
1851                 return NULL;
1852         }
1853
1854         Ptr = FindChan(cname);
1855
1856         if (!Ptr)
1857         {
1858                 return NULL;
1859         }
1860
1861         FOREACH_MOD OnUserPart(user,Ptr);
1862         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1863
1864         for (int i =0; i != MAXCHANS; i++)
1865         {
1866                 /* zap it from the channel list of the user */
1867                 if (user->chans[i].channel == Ptr)
1868                 {
1869                         if (reason)
1870                         {
1871                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1872
1873                                 if (!local)
1874                                 {
1875                                         char buffer[MAXBUF];
1876                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1877                                         NetSendToAll(buffer);
1878                                 }
1879
1880
1881                         }
1882                         else
1883                         {
1884                                 if (!local)
1885                                 {
1886                                         char buffer[MAXBUF];
1887                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1888                                         NetSendToAll(buffer);
1889                                 }
1890
1891                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1892                         }
1893                         user->chans[i].uc_modes = 0;
1894                         user->chans[i].channel = NULL;
1895                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1896                         break;
1897                 }
1898         }
1899
1900         Ptr->DecUserCounter();
1901         Ptr->DelUser((char*)user);
1902
1903         /* if there are no users left on the channel */
1904         if (!usercount(Ptr))
1905         {
1906                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1907
1908                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1909
1910                 /* kill the record */
1911                 if (iter != chanlist.end())
1912                 {
1913                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1914                         delete Ptr;
1915                         chanlist.erase(iter);
1916                 }
1917         }
1918 }
1919
1920
1921 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1922 {
1923         if ((!src) || (!user) || (!Ptr) || (!reason))
1924         {
1925                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1926                 return;
1927         }
1928
1929         if ((!Ptr) || (!user) || (!src))
1930         {
1931                 return;
1932         }
1933
1934         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1935
1936         if (!has_channel(user,Ptr))
1937         {
1938                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1939                 return;
1940         }
1941
1942         int MOD_RESULT = 0;
1943         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1944         if (MOD_RESULT == ACR_DENY)
1945                 return;
1946
1947         if (MOD_RESULT == ACR_DEFAULT)
1948         {
1949                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1950                 {
1951                         if (cstatus(src,Ptr) == STATUS_HOP)
1952                         {
1953                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1954                         }
1955                         else
1956                         {
1957                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1958                         }
1959
1960                         return;
1961                 }
1962         }
1963
1964         MOD_RESULT = 0;
1965         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1966         if (MOD_RESULT)
1967                 return;
1968
1969         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1970
1971         for (int i =0; i != MAXCHANS; i++)
1972         {
1973                 /* zap it from the channel list of the user */
1974                 if (user->chans[i].channel)
1975                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1976                 {
1977                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1978                         user->chans[i].uc_modes = 0;
1979                         user->chans[i].channel = NULL;
1980                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1981                         break;
1982                 }
1983         }
1984
1985         Ptr->DecUserCounter();
1986         Ptr->DelUser((char*)user);
1987
1988         /* if there are no users left on the channel */
1989         if (!usercount(Ptr))
1990         {
1991                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1992
1993                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1994
1995                 /* kill the record */
1996                 if (iter != chanlist.end())
1997                 {
1998                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1999                         delete Ptr;
2000                         chanlist.erase(iter);
2001                 }
2002         }
2003 }
2004
2005
2006
2007
2008 /* This function pokes and hacks at a parameter list like the following:
2009  *
2010  * PART #winbot,#darkgalaxy :m00!
2011  *
2012  * to turn it into a series of individual calls like this:
2013  *
2014  * PART #winbot :m00!
2015  * PART #darkgalaxy :m00!
2016  *
2017  * The seperate calls are sent to a callback function provided by the caller
2018  * (the caller will usually call itself recursively). The callback function
2019  * must be a command handler. Calling this function on a line with no list causes
2020  * no action to be taken. You must provide a starting and ending parameter number
2021  * where the range of the list can be found, useful if you have a terminating
2022  * parameter as above which is actually not part of the list, or parameters
2023  * before the actual list as well. This code is used by many functions which
2024  * can function as "one to list" (see the RFC) */
2025
2026 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2027 {
2028         char plist[MAXBUF];
2029         char *param;
2030         char *pars[32];
2031         char blog[32][MAXBUF];
2032         char blog2[32][MAXBUF];
2033         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2034         char keystr[MAXBUF];
2035         char moo[MAXBUF];
2036
2037         for (int i = 0; i <32; i++)
2038                 strcpy(blog[i],"");
2039
2040         for (int i = 0; i <32; i++)
2041                 strcpy(blog2[i],"");
2042
2043         strcpy(moo,"");
2044         for (int i = 0; i <10; i++)
2045         {
2046                 if (!parameters[i])
2047                 {
2048                         parameters[i] = moo;
2049                 }
2050         }
2051         if (joins)
2052         {
2053                 if (pcnt > 1) /* we have a key to copy */
2054                 {
2055                         strlcpy(keystr,parameters[1],MAXBUF);
2056                 }
2057         }
2058
2059         if (!parameters[start])
2060         {
2061                 return 0;
2062         }
2063         if (!strchr(parameters[start],','))
2064         {
2065                 return 0;
2066         }
2067         strcpy(plist,"");
2068         for (int i = start; i <= end; i++)
2069         {
2070                 if (parameters[i])
2071                 {
2072                         strlcat(plist,parameters[i],MAXBUF);
2073                 }
2074         }
2075
2076         j = 0;
2077         param = plist;
2078
2079         t = strlen(plist);
2080         for (int i = 0; i < t; i++)
2081         {
2082                 if (plist[i] == ',')
2083                 {
2084                         plist[i] = '\0';
2085                         strlcpy(blog[j++],param,MAXBUF);
2086                         param = plist+i+1;
2087                         if (j>20)
2088                         {
2089                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2090                                 return 1;
2091                         }
2092                 }
2093         }
2094         strlcpy(blog[j++],param,MAXBUF);
2095         total = j;
2096
2097         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2098         {
2099                 strcat(keystr,",");
2100         }
2101
2102         if ((joins) && (keystr))
2103         {
2104                 if (strchr(keystr,','))
2105                 {
2106                         j = 0;
2107                         param = keystr;
2108                         t2 = strlen(keystr);
2109                         for (int i = 0; i < t2; i++)
2110                         {
2111                                 if (keystr[i] == ',')
2112                                 {
2113                                         keystr[i] = '\0';
2114                                         strlcpy(blog2[j++],param,MAXBUF);
2115                                         param = keystr+i+1;
2116                                 }
2117                         }
2118                         strlcpy(blog2[j++],param,MAXBUF);
2119                         total2 = j;
2120                 }
2121         }
2122
2123         for (j = 0; j < total; j++)
2124         {
2125                 if (blog[j])
2126                 {
2127                         pars[0] = blog[j];
2128                 }
2129                 for (q = end; q < pcnt-1; q++)
2130                 {
2131                         if (parameters[q+1])
2132                         {
2133                                 pars[q-end+1] = parameters[q+1];
2134                         }
2135                 }
2136                 if ((joins) && (parameters[1]))
2137                 {
2138                         if (pcnt > 1)
2139                         {
2140                                 pars[1] = blog2[j];
2141                         }
2142                         else
2143                         {
2144                                 pars[1] = NULL;
2145                         }
2146                 }
2147                 /* repeatedly call the function with the hacked parameter list */
2148                 if ((joins) && (pcnt > 1))
2149                 {
2150                         if (pars[1])
2151                         {
2152                                 // pars[1] already set up and containing key from blog2[j]
2153                                 fn(pars,2,u);
2154                         }
2155                         else
2156                         {
2157                                 pars[1] = parameters[1];
2158                                 fn(pars,2,u);
2159                         }
2160                 }
2161                 else
2162                 {
2163                         fn(pars,pcnt-(end-start),u);
2164                 }
2165         }
2166
2167         return 1;
2168 }
2169
2170
2171
2172 void kill_link(userrec *user,const char* r)
2173 {
2174         user_hash::iterator iter = clientlist.find(user->nick);
2175
2176         char reason[MAXBUF];
2177
2178         strncpy(reason,r,MAXBUF);
2179
2180         if (strlen(reason)>MAXQUIT)
2181         {
2182                 reason[MAXQUIT-1] = '\0';
2183         }
2184
2185         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2186         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2187         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2188
2189         if (user->registered == 7) {
2190                 FOREACH_MOD OnUserQuit(user);
2191                 WriteCommonExcept(user,"QUIT :%s",reason);
2192
2193                 // Q token must go to ALL servers!!!
2194                 char buffer[MAXBUF];
2195                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2196                 NetSendToAll(buffer);
2197         }
2198
2199         FOREACH_MOD OnUserDisconnect(user);
2200
2201         if (user->fd > -1)
2202         {
2203                 FOREACH_MOD OnRawSocketClose(user->fd);
2204 #ifdef USE_KQUEUE
2205                 struct kevent ke;
2206                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2207                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2208                 if (i == -1)
2209                 {
2210                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2211                 }
2212 #endif
2213                 shutdown(user->fd,2);
2214                 close(user->fd);
2215         }
2216
2217         if (user->registered == 7) {
2218                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2219                 AddWhoWas(user);
2220         }
2221
2222         if (user->registered == 7) {
2223                 purge_empty_chans(user);
2224         }
2225
2226         if (iter != clientlist.end())
2227         {
2228                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2229                 if (user->fd > -1)
2230                         fd_ref_table[user->fd] = NULL;
2231                 delete user;
2232                 clientlist.erase(iter);
2233         }
2234 }
2235
2236 void kill_link_silent(userrec *user,const char* r)
2237 {
2238         user_hash::iterator iter = clientlist.find(user->nick);
2239
2240         char reason[MAXBUF];
2241
2242         strncpy(reason,r,MAXBUF);
2243
2244         if (strlen(reason)>MAXQUIT)
2245         {
2246                 reason[MAXQUIT-1] = '\0';
2247         }
2248
2249         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2250         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2251         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2252
2253         if (user->registered == 7) {
2254                 FOREACH_MOD OnUserQuit(user);
2255                 WriteCommonExcept(user,"QUIT :%s",reason);
2256
2257                 // Q token must go to ALL servers!!!
2258                 char buffer[MAXBUF];
2259                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2260                 NetSendToAll(buffer);
2261         }
2262
2263         FOREACH_MOD OnUserDisconnect(user);
2264
2265         if (user->fd > -1)
2266         {
2267                 FOREACH_MOD OnRawSocketClose(user->fd);
2268 #ifdef USE_KQUEUE
2269                 struct kevent ke;
2270                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2271                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2272                 if (i == -1)
2273                 {
2274                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2275                 }
2276 #endif
2277                 shutdown(user->fd,2);
2278                 close(user->fd);
2279         }
2280
2281         if (user->registered == 7) {
2282                 purge_empty_chans(user);
2283         }
2284
2285         if (iter != clientlist.end())
2286         {
2287                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2288                 if (user->fd > -1)
2289                         fd_ref_table[user->fd] = NULL;
2290                 delete user;
2291                 clientlist.erase(iter);
2292         }
2293 }
2294
2295
2296
2297 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2298
2299 char* Passwd(userrec *user)
2300 {
2301         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2302         {
2303                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2304                 {
2305                         return i->pass;
2306                 }
2307         }
2308         return "";
2309 }
2310
2311 bool IsDenied(userrec *user)
2312 {
2313         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2314         {
2315                 if (match(user->host,i->host) && (i->type == CC_DENY))
2316                 {
2317                         return true;
2318                 }
2319         }
2320         return false;
2321 }
2322
2323
2324
2325
2326 /* sends out an error notice to all connected clients (not to be used
2327  * lightly!) */
2328
2329 void send_error(char *s)
2330 {
2331         log(DEBUG,"send_error: %s",s);
2332         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2333         {
2334                 if (isnick(i->second->nick))
2335                 {
2336                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2337                 }
2338                 else
2339                 {
2340                         // fix - unregistered connections receive ERROR, not NOTICE
2341                         Write(i->second->fd,"ERROR :%s",s);
2342                 }
2343         }
2344 }
2345
2346 void Error(int status)
2347 {
2348         signal (SIGALRM, SIG_IGN);
2349         signal (SIGPIPE, SIG_IGN);
2350         signal (SIGTERM, SIG_IGN);
2351         signal (SIGABRT, SIG_IGN);
2352         signal (SIGSEGV, SIG_IGN);
2353         signal (SIGURG, SIG_IGN);
2354         signal (SIGKILL, SIG_IGN);
2355         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2356         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2357         Exit(status);
2358 }
2359
2360
2361 int main(int argc, char** argv)
2362 {
2363         Start();
2364         srand(time(NULL));
2365         log(DEBUG,"*** InspIRCd starting up!");
2366         if (!FileExists(CONFIG_FILE))
2367         {
2368                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2369                 log(DEFAULT,"main: no config");
2370                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2371                 Exit(ERROR);
2372         }
2373         if (argc > 1) {
2374                 for (int i = 1; i < argc; i++)
2375                 {
2376                         if (!strcmp(argv[i],"-nofork")) {
2377                                 nofork = true;
2378                         }
2379                         if (!strcmp(argv[i],"-wait")) {
2380                                 sleep(6);
2381                         }
2382                         if (!strcmp(argv[i],"-nolimit")) {
2383                                 unlimitcore = true;
2384                         }
2385                 }
2386         }
2387         strlcpy(MyExecutable,argv[0],MAXBUF);
2388
2389         // initialize the lowercase mapping table
2390         for (int cn = 0; cn < 256; cn++)
2391                 lowermap[cn] = cn;
2392         // lowercase the uppercase chars
2393         for (int cn = 65; cn < 91; cn++)
2394                 lowermap[cn] = tolower(cn);
2395         // now replace the specific chars for scandanavian comparison
2396         lowermap['['] = '{';
2397         lowermap[']'] = '}';
2398         lowermap['\\'] = '|';
2399
2400         if (InspIRCd(argv,argc) == ERROR)
2401         {
2402                 log(DEFAULT,"main: daemon function bailed");
2403                 printf("ERROR: could not initialise. Shutting down.\n");
2404                 Exit(ERROR);
2405         }
2406         Exit(TRUE);
2407         return 0;
2408 }
2409
2410 template<typename T> inline string ConvToStr(const T &in)
2411 {
2412         stringstream tmp;
2413         if (!(tmp << in)) return string();
2414         return tmp.str();
2415 }
2416
2417 /* re-allocates a nick in the user_hash after they change nicknames,
2418  * returns a pointer to the new user as it may have moved */
2419
2420 userrec* ReHashNick(char* Old, char* New)
2421 {
2422         //user_hash::iterator newnick;
2423         user_hash::iterator oldnick = clientlist.find(Old);
2424
2425         log(DEBUG,"ReHashNick: %s %s",Old,New);
2426
2427         if (!strcasecmp(Old,New))
2428         {
2429                 log(DEBUG,"old nick is new nick, skipping");
2430                 return oldnick->second;
2431         }
2432
2433         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2434
2435         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2436
2437         clientlist[New] = new userrec();
2438         clientlist[New] = oldnick->second;
2439         clientlist.erase(oldnick);
2440
2441         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2442
2443         return clientlist[New];
2444 }
2445
2446 /* adds or updates an entry in the whowas list */
2447 void AddWhoWas(userrec* u)
2448 {
2449         user_hash::iterator iter = whowas.find(u->nick);
2450         userrec *a = new userrec();
2451         strlcpy(a->nick,u->nick,NICKMAX);
2452         strlcpy(a->ident,u->ident,64);
2453         strlcpy(a->dhost,u->dhost,256);
2454         strlcpy(a->host,u->host,256);
2455         strlcpy(a->fullname,u->fullname,128);
2456         strlcpy(a->server,u->server,256);
2457         a->signon = u->signon;
2458
2459         /* MAX_WHOWAS:   max number of /WHOWAS items
2460          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2461          *               can be replaced by a newer one
2462          */
2463
2464         if (iter == whowas.end())
2465         {
2466                 if (whowas.size() == WHOWAS_MAX)
2467                 {
2468                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2469                         {
2470                                 // 3600 seconds in an hour ;)
2471                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2472                                 {
2473                                         if (i->second) delete i->second;
2474                                         i->second = a;
2475                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2476                                         return;
2477                                 }
2478                         }
2479                 }
2480                 else
2481                 {
2482                         log(DEBUG,"added fresh WHOWAS entry");
2483                         whowas[a->nick] = a;
2484                 }
2485         }
2486         else
2487         {
2488                 log(DEBUG,"updated WHOWAS entry");
2489                 if (iter->second) delete iter->second;
2490                 iter->second = a;
2491         }
2492 }
2493
2494
2495 /* add a client connection to the sockets list */
2496 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2497 {
2498         string tempnick;
2499         char tn2[MAXBUF];
2500         user_hash::iterator iter;
2501
2502         tempnick = ConvToStr(socket) + "-unknown";
2503         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
2504
2505         iter = clientlist.find(tempnick);
2506
2507         // fix by brain.
2508         // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
2509         // using one as a registered connection. As theyre per fd, we can also safely assume
2510         // that we wont have collisions. Therefore, if the nick exists in the list, its only
2511         // used by a dead socket, erase the iterator so that the new client may reclaim it.
2512         // this was probably the cause of 'server ignores me when i hammer it with reconnects'
2513         // issue in earlier alphas/betas
2514         if (iter != clientlist.end())
2515         {
2516                 clientlist.erase(iter);
2517         }
2518
2519         /*
2520          * It is OK to access the value here this way since we know
2521          * it exists, we just created it above.
2522          *
2523          * At NO other time should you access a value in a map or a
2524          * hash_map this way.
2525          */
2526         clientlist[tempnick] = new userrec();
2527
2528         NonBlocking(socket);
2529         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
2530
2531         clientlist[tempnick]->fd = socket;
2532         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2533         strncpy(clientlist[tempnick]->host, host,160);
2534         strncpy(clientlist[tempnick]->dhost, host,160);
2535         strncpy(clientlist[tempnick]->server, ServerName,256);
2536         strncpy(clientlist[tempnick]->ident, "unknown",12);
2537         clientlist[tempnick]->registered = 0;
2538         clientlist[tempnick]->signon = TIME+dns_timeout;
2539         clientlist[tempnick]->lastping = 1;
2540         clientlist[tempnick]->port = port;
2541         strncpy(clientlist[tempnick]->ip,ip,32);
2542
2543         // set the registration timeout for this user
2544         unsigned long class_regtimeout = 90;
2545         int class_flood = 0;
2546         long class_threshold = 5;
2547
2548         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2549         {
2550                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2551                 {
2552                         class_regtimeout = (unsigned long)i->registration_timeout;
2553                         class_flood = i->flood;
2554                         clientlist[tempnick]->pingmax = i->pingtime;
2555                         class_threshold = i->threshold;
2556                         break;
2557                 }
2558         }
2559
2560         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2561         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2562         clientlist[tempnick]->flood = class_flood;
2563         clientlist[tempnick]->threshold = class_threshold;
2564
2565         for (int i = 0; i < MAXCHANS; i++)
2566         {
2567                 clientlist[tempnick]->chans[i].channel = NULL;
2568                 clientlist[tempnick]->chans[i].uc_modes = 0;
2569         }
2570
2571         if (clientlist.size() == MAXCLIENTS)
2572         {
2573                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2574                 return;
2575         }
2576
2577         // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
2578         // its a pretty big but for the moment valid assumption:
2579         // file descriptors are handed out starting at 0, and are recycled as theyre freed.
2580         // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
2581         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
2582         // which for the time being is a physical impossibility (even the largest networks dont have more
2583         // than about 10,000 users on ONE server!)
2584         if (socket > 65535)
2585         {
2586                 kill_link(clientlist[tempnick],"Server is full");
2587                 return;
2588         }
2589
2590
2591         char* e = matches_exception(ip);
2592         if (!e)
2593         {
2594                 char* r = matches_zline(ip);
2595                 if (r)
2596                 {
2597                         char reason[MAXBUF];
2598                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2599                         kill_link(clientlist[tempnick],reason);
2600                         return;
2601                 }
2602         }
2603         fd_ref_table[socket] = clientlist[tempnick];
2604
2605 #ifdef USE_KQUEUE
2606         struct kevent ke;
2607         log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);
2608         EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL);
2609         int i = kevent(kq, &ke, 1, 0, 0, NULL);
2610         if (i == -1)
2611         {
2612                 switch (errno)
2613                 {
2614                         case EACCES:
2615                                 log(DEBUG,"kqueue: EACCES");
2616                         break;
2617                         case EFAULT:
2618                                 log(DEBUG,"kqueue: EFAULT");
2619                         break;
2620                         case EBADF:
2621                                 log(DEBUG,"kqueue: EBADF=%d",ke.ident);
2622                         break;
2623                         case EINTR:
2624                                 log(DEBUG,"kqueue: EINTR");
2625                         break;
2626                         case EINVAL:
2627                                 log(DEBUG,"kqueue: EINVAL");
2628                         break;
2629                         case ENOENT:
2630                                 log(DEBUG,"kqueue: ENOENT");
2631                         break;
2632                         case ENOMEM:
2633                                 log(DEBUG,"kqueue: ENOMEM");
2634                         break;
2635                         case ESRCH:
2636                                 log(DEBUG,"kqueue: ESRCH");
2637                         break;
2638                         default:
2639                                 log(DEBUG,"kqueue: UNKNOWN!");
2640                         break;
2641                 }
2642                 log(DEBUG,"kqueue: Failed to add user to queue!");
2643         }
2644
2645 #endif
2646 }
2647
2648 // this function counts all users connected, wether they are registered or NOT.
2649 int usercnt(void)
2650 {
2651         return clientlist.size();
2652 }
2653
2654 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2655 int registered_usercount(void)
2656 {
2657         int c = 0;
2658         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2659         {
2660                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2661         }
2662         return c;
2663 }
2664
2665 int usercount_invisible(void)
2666 {
2667         int c = 0;
2668
2669         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2670         {
2671                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2672         }
2673         return c;
2674 }
2675
2676 int usercount_opers(void)
2677 {
2678         int c = 0;
2679
2680         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2681         {
2682                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2683         }
2684         return c;
2685 }
2686
2687 int usercount_unknown(void)
2688 {
2689         int c = 0;
2690
2691         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2692         {
2693                 if ((i->second->fd) && (i->second->registered != 7))
2694                         c++;
2695         }
2696         return c;
2697 }
2698
2699 long chancount(void)
2700 {
2701         return chanlist.size();
2702 }
2703
2704 long count_servs(void)
2705 {
2706         int c = 0;
2707         for (int i = 0; i < 32; i++)
2708         {
2709                 if (me[i] != NULL)
2710                 {
2711                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2712                         {
2713                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2714                                 {
2715                                         c++;
2716                                 }
2717                         }
2718                 }
2719         }
2720         return c;
2721 }
2722
2723 long servercount(void)
2724 {
2725         return count_servs()+1;
2726 }
2727
2728 long local_count()
2729 {
2730         int c = 0;
2731         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2732         {
2733                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2734         }
2735         return c;
2736 }
2737
2738
2739 void ShowMOTD(userrec *user)
2740 {
2741         char buf[65536];
2742         std::string WholeMOTD = "";
2743         if (!MOTD.size())
2744         {
2745                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2746                 return;
2747         }
2748         snprintf(buf,65535,":%s 375 %s :- %s message of the day\r\n", ServerName, user->nick, ServerName);
2749         WholeMOTD = WholeMOTD + buf;
2750         for (int i = 0; i != MOTD.size(); i++)
2751         {
2752                 snprintf(buf,65535,":%s 372 %s :- %s\r\n", ServerName, user->nick, MOTD[i].c_str());
2753                 WholeMOTD = WholeMOTD + buf;
2754         }
2755         snprintf(buf,65535,":%s 376 %s :End of message of the day.\r\n", ServerName, user->nick);
2756         WholeMOTD = WholeMOTD + buf;
2757         // only one write operation
2758         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2759         statsSent += WholeMOTD.length();
2760 }
2761
2762 void ShowRULES(userrec *user)
2763 {
2764         if (!RULES.size())
2765         {
2766                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2767                 return;
2768         }
2769         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2770         for (int i = 0; i != RULES.size(); i++)
2771         {
2772                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2773         }
2774         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2775 }
2776
2777 /* shows the message of the day, and any other on-logon stuff */
2778 void FullConnectUser(userrec* user)
2779 {
2780         statsConnects++;
2781         user->idle_lastmsg = TIME;
2782         log(DEBUG,"ConnectUser: %s",user->nick);
2783
2784         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
2785         {
2786                 kill_link(user,"Invalid password");
2787                 return;
2788         }
2789         if (IsDenied(user))
2790         {
2791                 kill_link(user,"Unauthorised connection");
2792                 return;
2793         }
2794
2795         char match_against[MAXBUF];
2796         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2797         char* e = matches_exception(match_against);
2798         if (!e)
2799         {
2800                 char* r = matches_gline(match_against);
2801                 if (r)
2802                 {
2803                         char reason[MAXBUF];
2804                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2805                         kill_link_silent(user,reason);
2806                         return;
2807                 }
2808                 r = matches_kline(user->host);
2809                 if (r)
2810                 {
2811                         char reason[MAXBUF];
2812                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2813                         kill_link_silent(user,reason);
2814                         return;
2815                 }
2816         }
2817
2818         // fix by brain: move this below the xline checks to prevent spurious quits going onto the net that dont belong
2819         user->registered = 7;
2820
2821         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2822         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2823         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2824         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2825         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2826         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2827         std::stringstream v;
2828         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2829         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2830         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2831         v << Network;
2832         std::string data005 = v.str();
2833         FOREACH_MOD On005Numeric(data005);
2834         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2835         // so i'd better split it :)
2836         std::stringstream out(data005);
2837         std::string token = "";
2838         std::string line5 = "";
2839         int token_counter = 0;
2840         while (!out.eof())
2841         {
2842                 out >> token;
2843                 line5 = line5 + token + " ";
2844                 token_counter++;
2845                 if ((token_counter >= 13) || (out.eof() == true))
2846                 {
2847                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2848                         line5 = "";
2849                         token_counter = 0;
2850                 }
2851         }
2852         ShowMOTD(user);
2853
2854         char buffer[MAXBUF];
2855         snprintf(buffer,MAXBUF,"N %lu %s %s %s %s +%s %s %s :%s",(unsigned long)user->age,user->nick,user->host,user->dhost,user->ident,user->modes,user->ip,ServerName,user->fullname);
2856         NetSendToAll(buffer);
2857
2858         // fix by brain: these should be AFTER the N token, so other servers know what the HELL we're on about... :)
2859         FOREACH_MOD OnUserConnect(user);
2860         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
2861 }
2862
2863
2864 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2865 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2866 // registration timeout maximum seconds)
2867 bool AllModulesReportReady(userrec* user)
2868 {
2869         for (int i = 0; i <= MODCOUNT; i++)
2870         {
2871                 int res = modules[i]->OnCheckReady(user);
2872                         if (!res)
2873                                 return false;
2874         }
2875         return true;
2876 }
2877
2878 /* shows the message of the day, and any other on-logon stuff */
2879 void ConnectUser(userrec *user)
2880 {
2881         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2882         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2883         {
2884                 FullConnectUser(user);
2885         }
2886 }
2887
2888 std::string GetVersionString()
2889 {
2890         char Revision[] = "$Revision$";
2891         char versiondata[MAXBUF];
2892         char *s1 = Revision;
2893         char *savept;
2894         char *v2 = strtok_r(s1," ",&savept);
2895         s1 = savept;
2896         v2 = strtok_r(s1," ",&savept);
2897         s1 = savept;
2898 #ifdef USE_KQUEUE
2899         char socketengine[] = "kqueue";
2900 #else
2901         char socketengine[] = "select";
2902 #endif
2903         snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu) [SE=%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,socketengine);
2904         return versiondata;
2905 }
2906
2907 void handle_version(char **parameters, int pcnt, userrec *user)
2908 {
2909         if (!pcnt)
2910         {
2911                 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2912         }
2913         else
2914         {
2915                 if (!strcmp(parameters[0],"*"))
2916                 {
2917                         for (int j = 0; j < 32; j++)
2918                         {
2919                                 if (me[j] != NULL)
2920                                 {
2921                                         for (int x = 0; x < me[j]->connectors.size(); x++)
2922                                         {
2923                                                 WriteServ(user->fd,"351 %s :Server %d:%d (%s): %s",user->nick,j,x,me[j]->connectors[x].GetServerName().c_str(),me[j]->connectors[x].GetVersionString().c_str());
2924                                         }
2925                                 }
2926                         }
2927                         return;
2928                 }
2929                 if (match(ServerName,parameters[0]))
2930                 {
2931                         WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2932                         return;
2933                 }
2934                 bool displayed = false, found = false;
2935                 for (int j = 0; j < 32; j++)
2936                 {
2937                         if (me[j] != NULL)
2938                         {
2939                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2940                                 {
2941                                         if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
2942                                         {
2943                                                 found = true;
2944                                                 if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
2945                                                 {
2946                                                         displayed = true;
2947                                                         WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
2948                                                 }
2949                                         }
2950                                 }
2951                         }
2952                 }
2953                 if ((!displayed) && (found))
2954                 {
2955                         WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
2956                         return;
2957                 }
2958                 if (!found)
2959                 {
2960                         WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2961                 }
2962         }
2963         return;
2964 }
2965
2966
2967 // calls a handler function for a command
2968
2969 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2970 {
2971                 for (int i = 0; i < cmdlist.size(); i++)
2972                 {
2973                         if (!strcasecmp(cmdlist[i].command,commandname))
2974                         {
2975                                 if (cmdlist[i].handler_function)
2976                                 {
2977                                         if (pcnt>=cmdlist[i].min_params)
2978                                         {
2979                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2980                                                 {
2981                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2982                                                 }
2983                                         }
2984                                 }
2985                         }
2986                 }
2987 }
2988
2989 void DoSplitEveryone()
2990 {
2991         bool go_again = true;
2992         while (go_again)
2993         {
2994                 go_again = false;
2995                 for (int i = 0; i < 32; i++)
2996                 {
2997                         if (me[i] != NULL)
2998                         {
2999                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3000                                 {
3001                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
3002                                         {
3003                                                 j->routes.clear();
3004                                                 j->CloseConnection();
3005                                                 me[i]->connectors.erase(j);
3006                                                 go_again = true;
3007                                                 break;
3008                                         }
3009                                 }
3010                         }
3011                 }
3012         }
3013         log(DEBUG,"Removed server. Will remove clients...");
3014         // iterate through the userlist and remove all users on this server.
3015         // because we're dealing with a mesh, we dont have to deal with anything
3016         // "down-route" from this server (nice huh)
3017         go_again = true;
3018         char reason[MAXBUF];
3019         while (go_again)
3020         {
3021                 go_again = false;
3022                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3023                 {
3024                         if (strcasecmp(u->second->server,ServerName))
3025                         {
3026                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
3027                                 kill_link(u->second,reason);
3028                                 go_again = true;
3029                                 break;
3030                         }
3031                 }
3032         }
3033 }
3034
3035
3036
3037 char islast(const char* s)
3038 {
3039         char c = '`';
3040         for (int j = 0; j < 32; j++)
3041         {
3042                 if (me[j] != NULL)
3043                 {
3044                         for (int k = 0; k < me[j]->connectors.size(); k++)
3045                         {
3046                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3047                                 {
3048                                         c = '|';
3049                                 }
3050                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3051                                 {
3052                                         c = '`';
3053                                 }
3054                         }
3055                 }
3056         }
3057         return c;
3058 }
3059
3060 long map_count(const char* s)
3061 {
3062         int c = 0;
3063         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3064         {
3065                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
3066         }
3067         return c;
3068 }
3069
3070
3071 void force_nickchange(userrec* user,const char* newnick)
3072 {
3073         char nick[MAXBUF];
3074         int MOD_RESULT = 0;
3075
3076         strcpy(nick,"");
3077
3078         FOREACH_RESULT(OnUserPreNick(user,newnick));
3079         if (MOD_RESULT) {
3080                 statsCollisions++;
3081                 kill_link(user,"Nickname collision");
3082                 return;
3083         }
3084         if (matches_qline(newnick))
3085         {
3086                 statsCollisions++;
3087                 kill_link(user,"Nickname collision");
3088                 return;
3089         }
3090
3091         if (user)
3092         {
3093                 if (newnick)
3094                 {
3095                         strncpy(nick,newnick,MAXBUF);
3096                 }
3097                 if (user->registered == 7)
3098                 {
3099                         char* pars[1];
3100                         pars[0] = nick;
3101                         handle_nick(pars,1,user);
3102                 }
3103         }
3104 }
3105
3106
3107 int process_parameters(char **command_p,char *parameters)
3108 {
3109         int j = 0;
3110         int q = strlen(parameters);
3111         if (!q)
3112         {
3113                 /* no parameters, command_p invalid! */
3114                 return 0;
3115         }
3116         if (parameters[0] == ':')
3117         {
3118                 command_p[0] = parameters+1;
3119                 return 1;
3120         }
3121         if (q)
3122         {
3123                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
3124                 {
3125                         /* only one parameter */
3126                         command_p[0] = parameters;
3127                         if (parameters[0] == ':')
3128                         {
3129                                 if (strchr(parameters,' ') != NULL)
3130                                 {
3131                                         command_p[0]++;
3132                                 }
3133                         }
3134                         return 1;
3135                 }
3136         }
3137         command_p[j++] = parameters;
3138         for (int i = 0; i <= q; i++)
3139         {
3140                 if (parameters[i] == ' ')
3141                 {
3142                         command_p[j++] = parameters+i+1;
3143                         parameters[i] = '\0';
3144                         if (command_p[j-1][0] == ':')
3145                         {
3146                                 *command_p[j-1]++; /* remove dodgy ":" */
3147                                 break;
3148                                 /* parameter like this marks end of the sequence */
3149                         }
3150                 }
3151         }
3152         return j; /* returns total number of items in the list */
3153 }
3154
3155 void process_command(userrec *user, char* cmd)
3156 {
3157         char *parameters;
3158         char *command;
3159         char *command_p[127];
3160         char p[MAXBUF], temp[MAXBUF];
3161         int j, items, cmd_found;
3162
3163         for (int i = 0; i < 127; i++)
3164                 command_p[i] = NULL;
3165
3166         if (!user)
3167         {
3168                 return;
3169         }
3170         if (!cmd)
3171         {
3172                 return;
3173         }
3174         if (!cmd[0])
3175         {
3176                 return;
3177         }
3178
3179         int total_params = 0;
3180         if (strlen(cmd)>2)
3181         {
3182                 for (int q = 0; q < strlen(cmd)-1; q++)
3183                 {
3184                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
3185                         {
3186                                 total_params++;
3187                                 // found a 'trailing', we dont count them after this.
3188                                 break;
3189                         }
3190                         if (cmd[q] == ' ')
3191                                 total_params++;
3192                 }
3193         }
3194
3195         // another phidjit bug...
3196         if (total_params > 126)
3197         {
3198                 *(strchr(cmd,' ')) = '\0';
3199                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
3200                 return;
3201         }
3202
3203         strlcpy(temp,cmd,MAXBUF);
3204
3205         std::string tmp = cmd;
3206         for (int i = 0; i <= MODCOUNT; i++)
3207         {
3208                 std::string oldtmp = tmp;
3209                 modules[i]->OnServerRaw(tmp,true,user);
3210                 if (oldtmp != tmp)
3211                 {
3212                         log(DEBUG,"A Module changed the input string!");
3213                         log(DEBUG,"New string: %s",tmp.c_str());
3214                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3215                         break;
3216                 }
3217         }
3218         strlcpy(cmd,tmp.c_str(),MAXBUF);
3219         strlcpy(temp,cmd,MAXBUF);
3220
3221         if (!strchr(cmd,' '))
3222         {
3223                 /* no parameters, lets skip the formalities and not chop up
3224                  * the string */
3225                 log(DEBUG,"About to preprocess command with no params");
3226                 items = 0;
3227                 command_p[0] = NULL;
3228                 parameters = NULL;
3229                 for (int i = 0; i <= strlen(cmd); i++)
3230                 {
3231                         cmd[i] = toupper(cmd[i]);
3232                 }
3233                 command = cmd;
3234         }
3235         else
3236         {
3237                 strcpy(cmd,"");
3238                 j = 0;
3239                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3240                 for (int i = 0; i < strlen(temp); i++)
3241                 {
3242                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3243                         {
3244                                 cmd[j++] = temp[i];
3245                                 cmd[j] = 0;
3246                         }
3247                 }
3248                 /* split the full string into a command plus parameters */
3249                 parameters = p;
3250                 strcpy(p," ");
3251                 command = cmd;
3252                 if (strchr(cmd,' '))
3253                 {
3254                         for (int i = 0; i <= strlen(cmd); i++)
3255                         {
3256                                 /* capitalise the command ONLY, leave params intact */
3257                                 cmd[i] = toupper(cmd[i]);
3258                                 /* are we nearly there yet?! :P */
3259                                 if (cmd[i] == ' ')
3260                                 {
3261                                         command = cmd;
3262                                         parameters = cmd+i+1;
3263                                         cmd[i] = '\0';
3264                                         break;
3265                                 }
3266                         }
3267                 }
3268                 else
3269                 {
3270                         for (int i = 0; i <= strlen(cmd); i++)
3271                         {
3272                                 cmd[i] = toupper(cmd[i]);
3273                         }
3274                 }
3275
3276         }
3277         cmd_found = 0;
3278
3279         if (strlen(command)>MAXCOMMAND)
3280         {
3281                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3282                 return;
3283         }
3284
3285         for (int x = 0; x < strlen(command); x++)
3286         {
3287                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3288                 {
3289                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3290                         {
3291                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3292                                 {
3293                                         statsUnknown++;
3294                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3295                                         return;
3296                                 }
3297                         }
3298                 }
3299         }
3300
3301         for (int i = 0; i != cmdlist.size(); i++)
3302         {
3303                 if (cmdlist[i].command[0])
3304                 {
3305                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3306                         {
3307                                 if (parameters)
3308                                 {
3309                                         if (parameters[0])
3310                                         {
3311                                                 items = process_parameters(command_p,parameters);
3312                                         }
3313                                         else
3314                                         {
3315                                                 items = 0;
3316                                                 command_p[0] = NULL;
3317                                         }
3318                                 }
3319                                 else
3320                                 {
3321                                         items = 0;
3322                                         command_p[0] = NULL;
3323                                 }
3324
3325                                 if (user)
3326                                 {
3327                                         /* activity resets the ping pending timer */
3328                                         user->nping = TIME + user->pingmax;
3329                                         if ((items) < cmdlist[i].min_params)
3330                                         {
3331                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3332                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3333                                                 return;
3334                                         }
3335                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3336                                         {
3337                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3338                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3339                                                 cmd_found = 1;
3340                                                 return;
3341                                         }
3342                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3343                                         {
3344                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3345                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3346                                                 cmd_found = 1;
3347                                                 return;
3348                                         }
3349                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3350                                          * deny command! */
3351                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3352                                         {
3353                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3354                                                 {
3355                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3356                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3357                                                         return;
3358                                                 }
3359                                         }
3360                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3361                                         {
3362                                                 char* mycmd;
3363                                                 char* savept2;
3364                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3365                                                 while (mycmd)
3366                                                 {
3367                                                         if (!strcasecmp(mycmd,command))
3368                                                         {
3369                                                                 // command is disabled!
3370                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3371                                                                 return;
3372                                                         }
3373                                                         mycmd = strtok_r(NULL," ",&savept2);
3374                                                 }
3375
3376
3377                                         }
3378                                         if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
3379                                         {
3380                                                 if (cmdlist[i].handler_function)
3381                                                 {
3382
3383                                                         /* ikky /stats counters */
3384                                                         if (temp)
3385                                                         {
3386                                                                 cmdlist[i].use_count++;
3387                                                                 cmdlist[i].total_bytes+=strlen(temp);
3388                                                         }
3389
3390                                                         int MOD_RESULT = 0;
3391                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3392                                                         if (MOD_RESULT == 1) {
3393                                                                 return;
3394                                                         }
3395
3396                                                         /* WARNING: nothing may come after the
3397                                                          * command handler call, as the handler
3398                                                          * may free the user structure! */
3399
3400                                                         cmdlist[i].handler_function(command_p,items,user);
3401                                                 }
3402                                                 return;
3403                                         }
3404                                         else
3405                                         {
3406                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3407                                                 return;
3408                                         }
3409                                 }
3410                                 cmd_found = 1;
3411                         }
3412                 }
3413         }
3414         if ((!cmd_found) && (user))
3415         {
3416                 statsUnknown++;
3417                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3418         }
3419 }
3420
3421
3422 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3423 {
3424         command_t comm;
3425         /* create the command and push it onto the table */
3426         strlcpy(comm.command,cmd,MAXBUF);
3427         strlcpy(comm.source,source,MAXBUF);
3428         comm.handler_function = f;
3429         comm.flags_needed = flags;
3430         comm.min_params = minparams;
3431         comm.use_count = 0;
3432         comm.total_bytes = 0;
3433         cmdlist.push_back(comm);
3434         log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
3435 }
3436
3437 bool removecommands(const char* source)
3438 {
3439         bool go_again = true;
3440         while (go_again)
3441         {
3442                 go_again = false;
3443                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3444                 {
3445                         if (!strcmp(i->source,source))
3446                         {
3447                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3448                                 cmdlist.erase(i);
3449                                 go_again = true;
3450                                 break;
3451                         }
3452                 }
3453         }
3454         return true;
3455 }
3456
3457 void SetupCommandTable(void)
3458 {
3459         createcommand("USER",handle_user,0,4,"<core>");
3460         createcommand("NICK",handle_nick,0,1,"<core>");
3461         createcommand("QUIT",handle_quit,0,0,"<core>");
3462         createcommand("VERSION",handle_version,0,0,"<core>");
3463         createcommand("PING",handle_ping,0,1,"<core>");
3464         createcommand("PONG",handle_pong,0,1,"<core>");
3465         createcommand("ADMIN",handle_admin,0,0,"<core>");
3466         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3467         createcommand("INFO",handle_info,0,0,"<core>");
3468         createcommand("TIME",handle_time,0,0,"<core>");
3469         createcommand("WHOIS",handle_whois,0,1,"<core>");
3470         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3471         createcommand("NOTICE",handle_notice,0,2,"<core>");
3472         createcommand("JOIN",handle_join,0,1,"<core>");
3473         createcommand("NAMES",handle_names,0,0,"<core>");
3474         createcommand("PART",handle_part,0,1,"<core>");
3475         createcommand("KICK",handle_kick,0,2,"<core>");
3476         createcommand("MODE",handle_mode,0,1,"<core>");
3477         createcommand("TOPIC",handle_topic,0,1,"<core>");
3478         createcommand("WHO",handle_who,0,1,"<core>");
3479         createcommand("MOTD",handle_motd,0,0,"<core>");
3480         createcommand("RULES",handle_rules,0,0,"<core>");
3481         createcommand("OPER",handle_oper,0,2,"<core>");
3482         createcommand("LIST",handle_list,0,0,"<core>");
3483         createcommand("DIE",handle_die,'o',1,"<core>");
3484         createcommand("RESTART",handle_restart,'o',1,"<core>");
3485         createcommand("KILL",handle_kill,'o',2,"<core>");
3486         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3487         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3488         createcommand("STATS",handle_stats,0,1,"<core>");
3489         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3490         createcommand("AWAY",handle_away,0,0,"<core>");
3491         createcommand("ISON",handle_ison,0,0,"<core>");
3492         createcommand("SUMMON",handle_summon,0,0,"<core>");
3493         createcommand("USERS",handle_users,0,0,"<core>");
3494         createcommand("INVITE",handle_invite,0,2,"<core>");
3495         createcommand("PASS",handle_pass,0,1,"<core>");
3496         createcommand("TRACE",handle_trace,'o',0,"<core>");
3497         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3498         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3499         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3500         createcommand("MODULES",handle_modules,0,0,"<core>");
3501         createcommand("LINKS",handle_links,0,0,"<core>");
3502         createcommand("MAP",handle_map,0,0,"<core>");
3503         createcommand("KLINE",handle_kline,'o',1,"<core>");
3504         createcommand("GLINE",handle_gline,'o',1,"<core>");
3505         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3506         createcommand("QLINE",handle_qline,'o',1,"<core>");
3507         createcommand("ELINE",handle_eline,'o',1,"<core>");
3508         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3509         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3510         createcommand("SERVER",handle_server,0,0,"<core>");
3511 }
3512
3513 void process_buffer(const char* cmdbuf,userrec *user)
3514 {
3515         if (!user)
3516         {
3517                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3518                 return;
3519         }
3520         char cmd[MAXBUF];
3521         if (!cmdbuf)
3522         {
3523                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3524                 return;
3525         }
3526         if (!cmdbuf[0])
3527         {
3528                 return;
3529         }
3530         while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
3531
3532         strlcpy(cmd,cmdbuf,MAXBUF);
3533         if (!cmd[0])
3534         {
3535                 return;
3536         }
3537         int sl = strlen(cmd)-1;
3538         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3539         {
3540                 cmd[sl] = '\0';
3541         }
3542         sl = strlen(cmd)-1;
3543         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3544         {
3545                 cmd[sl] = '\0';
3546         }
3547         sl = strlen(cmd)-1;
3548         while (cmd[sl] == ' ') // strip trailing spaces
3549         {
3550                 cmd[sl] = '\0';
3551                 sl = strlen(cmd)-1;
3552         }
3553
3554         if (!cmd[0])
3555         {
3556                 return;
3557         }
3558         log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
3559         tidystring(cmd);
3560         if ((user) && (cmd))
3561         {
3562                 process_command(user,cmd);
3563         }
3564 }
3565
3566 void DoSync(serverrec* serv, char* tcp_host)
3567 {
3568         char data[MAXBUF];
3569         log(DEBUG,"Sending sync");
3570         // send start of sync marker: Y <timestamp>
3571         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3572         // except the ones its receiving it from.
3573         snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
3574         serv->SendPacket(data,tcp_host);
3575         // send users and channels
3576
3577         NetSendMyRoutingTable();
3578
3579         // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
3580         for (int j = 0; j < 32; j++)
3581         {
3582                 if (me[j] != NULL)
3583                 {
3584                         for (int k = 0; k < me[j]->connectors.size(); k++)
3585                         {
3586                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3587                                 {
3588                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3589                                         serv->SendPacket(data,tcp_host);
3590                                 }
3591                         }
3592                 }
3593         }
3594
3595         // send our version for the remote side to cache
3596         snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
3597         serv->SendPacket(data,tcp_host);
3598
3599         // sync the users and channels, give the modules a look-in.
3600         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3601         {
3602                 snprintf(data,MAXBUF,"N %lu %s %s %s %s +%s %s %s :%s",(unsigned long)u->second->age,u->second->nick,u->second->host,u->second->dhost,u->second->ident,u->second->modes,u->second->ip,u->second->server,u->second->fullname);
3603                 serv->SendPacket(data,tcp_host);
3604                 if (strchr(u->second->modes,'o'))
3605                 {
3606                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3607                         serv->SendPacket(data,tcp_host);
3608                 }
3609                 for (int i = 0; i <= MODCOUNT; i++)
3610                 {
3611                         string_list l = modules[i]->OnUserSync(u->second);
3612                         for (int j = 0; j < l.size(); j++)
3613                         {
3614                                 strlcpy(data,l[j].c_str(),MAXBUF);
3615                                 serv->SendPacket(data,tcp_host);
3616                         }
3617                 }
3618                 char* chl = chlist(u->second,u->second);
3619                 if (strcmp(chl,""))
3620                 {
3621                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
3622                         serv->SendPacket(data,tcp_host);
3623                 }
3624         }
3625         // send channel modes, topics etc...
3626         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3627         {
3628                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3629                 serv->SendPacket(data,tcp_host);
3630                 for (int i = 0; i <= MODCOUNT; i++)
3631                 {
3632                         string_list l = modules[i]->OnChannelSync(c->second);
3633                         for (int j = 0; j < l.size(); j++)
3634                         {
3635                                 strlcpy(data,l[j].c_str(),MAXBUF);
3636                                 serv->SendPacket(data,tcp_host);
3637                         }
3638                 }
3639                 if (c->second->topic[0])
3640                 {
3641                         snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3642                         serv->SendPacket(data,tcp_host);
3643                 }
3644                 // send current banlist
3645
3646                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3647                 {
3648                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3649                         serv->SendPacket(data,tcp_host);
3650                 }
3651         }
3652         // sync global zlines, glines, etc
3653         sync_xlines(serv,tcp_host);
3654
3655         snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
3656         serv->SendPacket(data,tcp_host);
3657         log(DEBUG,"Sent sync");
3658         // ircd sends its serverlist after the end of sync here
3659 }
3660
3661
3662 void NetSendMyRoutingTable()
3663 {
3664         // send out a line saying what is reachable to us.
3665         // E.g. if A is linked to B C and D, send out:
3666         // $ A B C D
3667         // if its only linked to B and D send out:
3668         // $ A B D
3669         // if it has no links, dont even send out the line at all.
3670         char buffer[MAXBUF];
3671         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3672         bool sendit = false;
3673         for (int i = 0; i < 32; i++)
3674         {
3675                 if (me[i] != NULL)
3676                 {
3677                         for (int j = 0; j < me[i]->connectors.size(); j++)
3678                         {
3679                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3680                                 {
3681                                         strlcat(buffer," ",MAXBUF);
3682                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3683                                         sendit = true;
3684                                 }
3685                         }
3686                 }
3687         }
3688         if (sendit)
3689                 NetSendToAll(buffer);
3690 }
3691
3692
3693 void DoSplit(const char* params)
3694 {
3695         bool go_again = true;
3696         while (go_again)
3697         {
3698                 go_again = false;
3699                 for (int i = 0; i < 32; i++)
3700                 {
3701                         if (me[i] != NULL)
3702                         {
3703                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3704                                 {
3705                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3706                                         {
3707                                                 j->routes.clear();
3708                                                 j->CloseConnection();
3709                                                 me[i]->connectors.erase(j);
3710                                                 go_again = true;
3711                                                 break;
3712                                         }
3713                                 }
3714                         }
3715                 }
3716         }
3717         log(DEBUG,"Removed server. Will remove clients...");
3718         // iterate through the userlist and remove all users on this server.
3719         // because we're dealing with a mesh, we dont have to deal with anything
3720         // "down-route" from this server (nice huh)
3721         go_again = true;
3722         char reason[MAXBUF];
3723         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3724         while (go_again)
3725         {
3726                 go_again = false;
3727                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3728                 {
3729                         if (!strcasecmp(u->second->server,params))
3730                         {
3731                                 kill_link(u->second,reason);
3732                                 go_again = true;
3733                                 break;
3734                         }
3735                 }
3736         }
3737 }
3738
3739 // removes a server. Will NOT remove its users!
3740
3741 void RemoveServer(const char* name)
3742 {
3743         bool go_again = true;
3744         while (go_again)
3745         {
3746                 go_again = false;
3747                 for (int i = 0; i < 32; i++)
3748                 {
3749                         if (me[i] != NULL)
3750                         {
3751                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3752                                 {
3753                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3754                                         {
3755                                                 j->routes.clear();
3756                                                 j->CloseConnection();
3757                                                 me[i]->connectors.erase(j);
3758                                                 go_again = true;
3759                                                 break;
3760                                         }
3761                                 }
3762                         }
3763                 }
3764         }
3765 }
3766
3767
3768 char MODERR[MAXBUF];
3769
3770 char* ModuleError()
3771 {
3772         return MODERR;
3773 }
3774
3775 void erase_factory(int j)
3776 {
3777         int v = 0;
3778         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3779         {
3780                 if (v == j)
3781                 {
3782                         factory.erase(t);
3783                         factory.push_back(NULL);
3784                         return;
3785                 }
3786                 v++;
3787         }
3788 }
3789
3790 void erase_module(int j)
3791 {
3792         int v1 = 0;
3793         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3794         {
3795                 if (v1 == j)
3796                 {
3797                         delete *m;
3798                         modules.erase(m);
3799                         modules.push_back(NULL);
3800                         break;
3801                 }
3802                 v1++;
3803         }
3804         int v2 = 0;
3805         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3806         {
3807                 if (v2 == j)
3808                 {
3809                        module_names.erase(v);
3810                        break;
3811                 }
3812                 v2++;
3813         }
3814
3815 }
3816
3817 bool UnloadModule(const char* filename)
3818 {
3819         std::string filename_str = filename;
3820         for (int j = 0; j != module_names.size(); j++)
3821         {
3822                 if (module_names[j] == filename_str)
3823                 {
3824                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3825                         {
3826                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3827                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3828                                 return false;
3829                         }
3830                         // found the module
3831                         log(DEBUG,"Deleting module...");
3832                         erase_module(j);
3833                         log(DEBUG,"Erasing module entry...");
3834                         erase_factory(j);
3835                         log(DEBUG,"Removing dependent commands...");
3836                         removecommands(filename);
3837                         log(DEFAULT,"Module %s unloaded",filename);
3838                         MODCOUNT--;
3839                         return true;
3840                 }
3841         }
3842         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3843         snprintf(MODERR,MAXBUF,"Module not loaded");
3844         return false;
3845 }
3846
3847 bool DirValid(char* dirandfile)
3848 {
3849         char work[MAXBUF];
3850         strlcpy(work,dirandfile,MAXBUF);
3851         int p = strlen(work);
3852         // we just want the dir
3853         while (strlen(work))
3854         {
3855                 if (work[p] == '/')
3856                 {
3857                         work[p] = '\0';
3858                         break;
3859                 }
3860                 work[p--] = '\0';
3861         }
3862         char buffer[MAXBUF], otherdir[MAXBUF];
3863         // Get the current working directory
3864         if( getcwd( buffer, MAXBUF ) == NULL )
3865                 return false;
3866         chdir(work);
3867         if( getcwd( otherdir, MAXBUF ) == NULL )
3868                 return false;
3869         chdir(buffer);
3870         if (strlen(otherdir) >= strlen(work))
3871         {
3872                 otherdir[strlen(work)] = '\0';
3873                 if (!strcmp(otherdir,work))
3874                 {
3875                         return true;
3876                 }
3877                 return false;
3878         }
3879         else return false;
3880 }
3881
3882 std::string GetFullProgDir(char** argv, int argc)
3883 {
3884         char work[MAXBUF];
3885         strlcpy(work,argv[0],MAXBUF);
3886         int p = strlen(work);
3887         // we just want the dir
3888         while (strlen(work))
3889         {
3890                 if (work[p] == '/')
3891                 {
3892                         work[p] = '\0';
3893                         break;
3894                 }
3895                 work[p--] = '\0';
3896         }
3897         char buffer[MAXBUF], otherdir[MAXBUF];
3898         // Get the current working directory
3899         if( getcwd( buffer, MAXBUF ) == NULL )
3900                 return "";
3901         chdir(work);
3902         if( getcwd( otherdir, MAXBUF ) == NULL )
3903                 return "";
3904         chdir(buffer);
3905         return otherdir;
3906 }
3907
3908 bool LoadModule(const char* filename)
3909 {
3910         char modfile[MAXBUF];
3911         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3912         std::string filename_str = filename;
3913         if (!DirValid(modfile))
3914         {
3915                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3916                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3917                 return false;
3918         }
3919         log(DEBUG,"Loading module: %s",modfile);
3920         if (FileExists(modfile))
3921         {
3922                 for (int j = 0; j < module_names.size(); j++)
3923                 {
3924                         if (module_names[j] == filename_str)
3925                         {
3926                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3927                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3928                                 return false;
3929                         }
3930                 }
3931                 ircd_module* a = new ircd_module(modfile);
3932                 factory[MODCOUNT+1] = a;
3933                 if (factory[MODCOUNT+1]->LastError())
3934                 {
3935                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3936                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3937                         MODCOUNT--;
3938                         return false;
3939                 }
3940                 if (factory[MODCOUNT+1]->factory)
3941                 {
3942                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3943                         modules[MODCOUNT+1] = m;
3944                         /* save the module and the module's classfactory, if
3945                          * this isnt done, random crashes can occur :/ */
3946                         module_names.push_back(filename);
3947                 }
3948                 else
3949                 {
3950                         log(DEFAULT,"Unable to load %s",modfile);
3951                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3952                         return false;
3953                 }
3954         }
3955         else
3956         {
3957                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3958                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3959                 return false;
3960         }
3961         MODCOUNT++;
3962         return true;
3963 }
3964
3965 int InspIRCd(char** argv, int argc)
3966 {
3967         struct sockaddr_in client,server;
3968         char addrs[MAXBUF][255];
3969         int incomingSockfd, result = TRUE;
3970         socklen_t length;
3971         int count = 0;
3972         int selectResult = 0, selectResult2 = 0;
3973         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3974         fd_set selectFds;
3975         timeval tv;
3976
3977         std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
3978         log_file = fopen(logpath.c_str(),"a+");
3979         if (!log_file)
3980         {
3981                 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
3982                 Exit(ERROR);
3983         }
3984         printf("Logging to %s...\n",logpath.c_str());
3985
3986         log(DEFAULT,"$Id$");
3987         if (geteuid() == 0)
3988         {
3989                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3990                 Exit(ERROR);
3991                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3992         }
3993         SetupCommandTable();
3994         log(DEBUG,"InspIRCd: startup: default command table set up");
3995
3996         ReadConfig(true,NULL);
3997         if (DieValue[0])
3998         {
3999                 printf("WARNING: %s\n\n",DieValue);
4000                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
4001                 exit(0);
4002         }
4003         log(DEBUG,"InspIRCd: startup: read config");
4004
4005         int clientportcount = 0, serverportcount = 0;
4006
4007         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
4008         {
4009                 ConfValue("bind","port",count,configToken,&config_f);
4010                 ConfValue("bind","address",count,Addr,&config_f);
4011                 ConfValue("bind","type",count,Type,&config_f);
4012                 if (!strcmp(Type,"servers"))
4013                 {
4014                         char Default[MAXBUF];
4015                         strcpy(Default,"no");
4016                         ConfValue("bind","default",count,Default,&config_f);
4017                         if (strchr(Default,'y'))
4018                         {
4019                                 defaultRoute = serverportcount;
4020                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
4021                         }
4022                         me[serverportcount] = new serverrec(ServerName,100L,false);
4023                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
4024                         {
4025                                 log(DEFAULT,"Warning: Failed to bind port %lu",(unsigned long)atoi(configToken));
4026                                 printf("Warning: Failed to bind port %lu\n",(unsigned long)atoi(configToken));
4027                         }
4028                         else
4029                         {
4030                                 serverportcount++;
4031                         }
4032                 }
4033                 else
4034                 {
4035                         ports[clientportcount] = atoi(configToken);
4036                         strlcpy(addrs[clientportcount],Addr,256);
4037                         clientportcount++;
4038                 }
4039                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
4040         }
4041         portCount = clientportcount;
4042         SERVERportCount = serverportcount;
4043
4044         log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)SERVERportCount);
4045         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
4046
4047         printf("\n");
4048
4049         /* BugFix By Craig! :p */
4050         MODCOUNT = -1;
4051         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
4052         {
4053                 ConfValue("module","name",count,configToken,&config_f);
4054                 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
4055                 if (!LoadModule(configToken))
4056                 {
4057                         log(DEFAULT,"Exiting due to a module loader error.");
4058                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
4059                         Exit(0);
4060                 }
4061         }
4062         log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
4063
4064         startup_time = time(NULL);
4065
4066         char PID[MAXBUF];
4067         ConfValue("pid","file",0,PID,&config_f);
4068         // write once here, to try it out and make sure its ok
4069         WritePID(PID);
4070
4071         /* setup select call */
4072 #ifndef USE_KQUEUE
4073         FD_ZERO(&selectFds);
4074 #endif
4075         log(DEBUG,"InspIRCd: startup: zero selects");
4076         log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
4077
4078         for (count = 0; count < portCount; count++)
4079         {
4080                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
4081                 {
4082                         log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
4083                         return(ERROR);
4084                 }
4085                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
4086                 {
4087                         log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
4088                 }
4089                 else    /* well we at least bound to one socket so we'll continue */
4090                 {
4091                         boundPortCount++;
4092                 }
4093         }
4094
4095         log(DEBUG,"InspIRCd: startup: total bound ports %lu",(unsigned long)boundPortCount);
4096
4097         /* if we didn't bind to anything then abort */
4098         if (boundPortCount == 0)
4099         {
4100                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
4101                 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
4102                 return (ERROR);
4103         }
4104
4105
4106         printf("\nInspIRCd is now running!\n");
4107
4108         if (nofork)
4109         {
4110                 log(VERBOSE,"Not forking as -nofork was specified");
4111         }
4112         else
4113         {
4114                 if (DaemonSeed() == ERROR)
4115                 {
4116                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
4117                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
4118                         Exit(ERROR);
4119                 }
4120         }
4121
4122         // BUGFIX: We cannot initialize this before forking, as the kqueue data is not inherited by child processes!
4123 #ifdef USE_KQUEUE
4124         kq = kqueue();
4125         lkq = kqueue();
4126         skq = kqueue();
4127         if ((kq == -1) || (lkq == -1) || (skq == -1))
4128         {
4129                 log(DEFAULT,"main: kqueue() failed!");
4130                 printf("ERROR: could not initialise kqueue event system. Shutting down.\n");
4131                 Exit(ERROR);
4132         }
4133 #endif
4134
4135
4136 #ifdef USE_KQUEUE
4137         log(DEFAULT,"kqueue socket engine is enabled. Filling listen list.");
4138         for (count = 0; count < boundPortCount; count++)
4139         {
4140                 struct kevent ke;
4141                 log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]);
4142                 EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, 5, NULL);
4143                 int i = kevent(lkq, &ke, 1, 0, 0, NULL);
4144                 if (i == -1)
4145                 {
4146                         log(DEFAULT,"main: add listen ports to kqueue failed!");
4147                         printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n");
4148                 }
4149         }
4150         for (int t = 0; t != SERVERportCount; t++)
4151         {
4152                 struct kevent ke;
4153                 if (me[t])
4154                 {
4155                         log(DEBUG,"kqueue: Add listening SERVER socket to events, kq=%d socket=%d",skq,me[t]->fd);
4156                         EV_SET(&ke, me[t]->fd, EVFILT_READ, EV_ADD, 0, 5, NULL);
4157                         int i = kevent(skq, &ke, 1, 0, 0, NULL);
4158                         if (i == -1)
4159                         {
4160                                 log(DEFAULT,"main: add server listen ports to kqueue failed!");
4161                                 printf("ERROR: could not initialise listening server sockets in kqueue. Shutting down.\n");
4162                         }
4163                 }
4164         }
4165
4166
4167 #else
4168         log(DEFAULT,"Using standard select socket engine.");
4169 #endif
4170
4171         WritePID(PID);
4172
4173         length = sizeof (client);
4174         char tcp_msg[MAXBUF],tcp_host[MAXBUF];
4175
4176 #ifdef USE_KQUEUE
4177         struct kevent ke;
4178         struct kevent ke_list[33];
4179         struct timespec ts;
4180 #endif
4181         fd_set serverfds;
4182         timeval tvs;
4183         tvs.tv_usec = 10000L;
4184         tvs.tv_sec = 0;
4185         tv.tv_sec = 0;
4186         tv.tv_usec = 10000L;
4187         char data[65536];
4188         timeval tval;
4189         fd_set sfd;
4190         tval.tv_usec = 10000L;
4191         tval.tv_sec = 0;
4192         int total_in_this_set = 0;
4193         int i = 0, v = 0, j = 0, cycle_iter = 0;
4194         bool expire_run = false;
4195
4196         /* main loop, this never returns */
4197         for (;;)
4198         {
4199 #ifdef _POSIX_PRIORITY_SCHEDULING
4200                 sched_yield();
4201 #endif
4202 #ifndef USE_KQUEUE
4203                 FD_ZERO(&sfd);
4204 #endif
4205
4206                 // we only read time() once per iteration rather than tons of times!
4207                 OLDTIME = TIME;
4208                 TIME = time(NULL);
4209
4210                 dns_poll();
4211
4212                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
4213                 // them in a list, then reap the list every second or so.
4214                 if (((TIME % 5) == 0) && (!expire_run))
4215                 {
4216                         expire_lines();
4217                         FOREACH_MOD OnBackgroundTimer(TIME);
4218                         expire_run = true;
4219                         continue;
4220                 }
4221                 if ((TIME % 5) == 1)
4222                         expire_run = false;
4223
4224                 // fix by brain - this must be below any manipulation of the hashmap by modules
4225                 user_hash::iterator count2 = clientlist.begin();
4226
4227 #ifdef USE_KQUEUE
4228                 ts.tv_sec = 0;
4229                 ts.tv_nsec = 30000L;
4230                 i = kevent(skq, NULL, 0, &ke, 1, &ts);
4231                 if (i > 0)
4232                 {
4233                         log(DEBUG,"kqueue: Listening server socket event, i=%d, ke.ident=%d",i,ke.ident);
4234                         for (int x = 0; x != SERVERportCount; x++)
4235                         {
4236                                 if ((me[x]) && (ke.ident == me[x]->fd))
4237                                 {
4238
4239 #else
4240                 FD_ZERO(&serverfds);
4241                 for (int x = 0; x != SERVERportCount; x++)
4242                 {
4243                         if (me[x])
4244                                 FD_SET(me[x]->fd, &serverfds);
4245                 }
4246                 tvs.tv_usec = 30000L;
4247                 tvs.tv_sec = 0;
4248                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
4249                 if (servresult > 0)
4250                 {
4251                         for (int x = 0; x != SERVERportCount; x++)
4252                         {
4253                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
4254                                 {
4255 #endif
4256                                         char remotehost[MAXBUF],resolved[MAXBUF];
4257                                         length = sizeof (client);
4258                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
4259                                         if (incomingSockfd != -1)
4260                                         {
4261                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
4262                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
4263                                                 {
4264                                                         strlcpy(resolved,remotehost,MAXBUF);
4265                                                 }
4266                                                 // add to this connections ircd_connector vector
4267                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
4268                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
4269                                         }
4270                                 }
4271                         }
4272                 }
4273
4274                 for (int x = 0; x < SERVERportCount; x++)
4275                 {
4276                         std::deque<std::string> msgs;
4277                         msgs.clear();
4278                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
4279                         {
4280                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
4281                                 {
4282                                         strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
4283                                         log(DEBUG,"Processing: %s",tcp_msg);
4284                                         if (!tcp_msg[0])
4285                                         {
4286                                                 log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
4287                                                 break;
4288                                         }
4289                                         // during a netburst, send all data to all other linked servers
4290                                         if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
4291                                         {
4292                                                 if (is_uline(tcp_host))
4293                                                 {
4294                                                         if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
4295                                                         {
4296                                                                 NetSendToAllExcept(tcp_host,tcp_msg);
4297                                                         }
4298                                                 }
4299                                                 else
4300                                                         NetSendToAllExcept(tcp_host,tcp_msg);
4301                                         }
4302                                         std::string msg = tcp_msg;
4303                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4304                                         strlcpy(tcp_msg,msg.c_str(),MAXBUF);
4305                                         handle_link_packet(tcp_msg, tcp_host, me[x]);
4306                                 }
4307                                 goto label;
4308                         }
4309                 }
4310
4311         while (count2 != clientlist.end())
4312         {
4313 #ifndef USE_KQUEUE
4314                 FD_ZERO(&sfd);
4315 #endif
4316
4317                 total_in_this_set = 0;
4318
4319                 user_hash::iterator xcount = count2;
4320                 user_hash::iterator endingiter = count2;
4321
4322                 if (count2 == clientlist.end()) break;
4323
4324                 userrec* curr = NULL;
4325
4326                 if (count2->second)
4327                         curr = count2->second;
4328
4329                 if ((curr) && (curr->fd != 0))
4330                 {
4331 #ifdef _POSIX_PRIORITY_SCHEDULING
4332         sched_yield();
4333 #endif
4334                         // assemble up to 64 sockets into an fd_set
4335                         // to implement a pooling mechanism.
4336                         //
4337                         // This should be up to 64x faster than the
4338                         // old implementation.
4339 #ifndef USE_KQUEUE
4340                         while (total_in_this_set < 1024)
4341                         {
4342                                 if (count2 != clientlist.end())
4343                                 {
4344                                         curr = count2->second;
4345                                         // we don't check the state of remote users.
4346                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4347                                         {
4348                                                 FD_SET (curr->fd, &sfd);
4349
4350                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4351                                                 // their connection class.
4352                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4353                                                 {
4354                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4355                                                         kill_link(curr,"Registration timeout");
4356                                                         goto label;
4357                                                 }
4358                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4359                                                 {
4360                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4361                                                         curr->dns_done = true;
4362                                                         statsDnsBad++;
4363                                                         FullConnectUser(curr);
4364                                                         goto label;
4365                                                 }
4366                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) // both NICK and USER... and DNS
4367                                                 {
4368                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4369                                                         FullConnectUser(curr);
4370                                                         goto label;
4371                                                 }
4372                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4373                                                 {
4374                                                         if ((!curr->lastping) && (curr->registered == 7))
4375                                                         {
4376                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4377                                                                 kill_link(curr,"Ping timeout");
4378                                                                 goto label;
4379                                                         }
4380                                                         Write(curr->fd,"PING :%s",ServerName);
4381                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4382                                                         curr->lastping = 0;
4383                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4384                                                 }
4385                                         }
4386                                         count2++;
4387                                         total_in_this_set++;
4388                                 }
4389                                 else break;
4390                         }
4391                         endingiter = count2;
4392                         count2 = xcount; // roll back to where we were
4393 #else
4394                         // KQUEUE: We don't go through a loop to fill the fd_set so instead we must manually do this loop every now and again.
4395                         // TODO: We dont need to do all this EVERY loop iteration, tone down the visits to this if we're using kqueue.
4396                         cycle_iter++;
4397                         if (cycle_iter > 10) while (count2 != clientlist.end())
4398                         {
4399                                 cycle_iter = 0;
4400                                 if (count2 != clientlist.end())
4401                                 {
4402                                         curr = count2->second;
4403                                         // we don't check the state of remote users.
4404                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4405                                         {
4406                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4407                                                 // their connection class.
4408                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4409                                                 {
4410                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4411                                                         kill_link(curr,"Registration timeout");
4412                                                         goto label;
4413                                                 }
4414                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4415                                                 {
4416                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
4417                                                         curr->dns_done = true;
4418                                                         statsDnsBad++;
4419                                                         FullConnectUser(curr);
4420                                                         goto label;
4421                                                 }
4422                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4423                                                 {
4424                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4425                                                         FullConnectUser(curr);
4426                                                         goto label;
4427                                                 }
4428                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4429                                                 {
4430                                                         if ((!curr->lastping) && (curr->registered == 7))
4431                                                         {
4432                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4433                                                                 kill_link(curr,"Ping timeout");
4434                                                                 goto label;
4435                                                         }
4436                                                         Write(curr->fd,"PING :%s",ServerName);
4437                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4438                                                         curr->lastping = 0;
4439                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4440                                                 }
4441                                         }
4442                                 }
4443                                 else break;
4444                                 count2++;
4445                         }
4446                         // increment the counter right to the end of the list, as kqueue processes everything in one go
4447 #endif
4448
4449                         v = 0;
4450
4451 #ifdef USE_KQUEUE
4452                         ts.tv_sec = 0;
4453                         ts.tv_nsec = 1000L;
4454                         // for now, we only read 1 event. We could read soooo many more :)
4455                         int i = kevent(kq, NULL, 0, &ke, 1, &ts);
4456                         if (i > 0)
4457                         {
4458                                 log(DEBUG,"kevent call: kq=%d, i=%d",kq,i);
4459                                 // KQUEUE: kevent gives us ONE fd which is ready to have something done to it. Do something to it.
4460                                 userrec* cu = fd_ref_table[ke.ident];
4461 #else
4462                         tval.tv_usec = 1000L;
4463                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4464
4465                         // now loop through all of the items in this pool if any are waiting
4466                         if (selectResult2 > 0)
4467                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4468                         {
4469                                 // SELECT: we have to iterate...
4470                                 userrec* cu = count2a->second;
4471 #endif
4472
4473 #ifdef _POSIX_PRIORITY_SCHEDULING
4474                                 sched_yield();
4475 #endif
4476                                 result = EAGAIN;
4477 #ifdef USE_KQUEUE
4478                                 // KQUEUE: We already know we have a valid FD. No checks needed.
4479                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
4480 #else
4481                                 // SELECT: We don't know if our FD is valid.
4482                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd)))
4483 #endif
4484                                 {
4485                                         log(DEBUG,"Data waiting on socket %d",cu->fd);
4486                                         int MOD_RESULT = 0;
4487                                         int result2 = 0;
4488                                         FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
4489                                         if (!MOD_RESULT)
4490                                         {
4491                                                 result = read(cu->fd, data, 65535);
4492                                         }
4493                                         else result = result2;
4494                                         log(DEBUG,"Read result: %d",result);
4495                                         if (result)
4496                                         {
4497                                                 statsRecv += result;
4498                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4499                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4500                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4501                                                 for (int checker = 0; checker < result; checker++)
4502                                                 {
4503                                                         if ((data[checker] == 0) || (data[checker] == 7))
4504                                                                 data[checker] = ' ';
4505                                                 }
4506                                                 if (result > 0)
4507                                                         data[result] = '\0';
4508                                                 userrec* current = cu;
4509                                                 int currfd = current->fd;
4510                                                 int floodlines = 0;
4511                                                 // add the data to the users buffer
4512                                                 if (result > 0)
4513                                                 if (!current->AddBuffer(data))
4514                                                 {
4515                                                         // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
4516                                                         if (current->registered == 7)
4517                                                         {
4518                                                                 kill_link(current,"RecvQ exceeded");
4519                                                         }
4520                                                         else
4521                                                         {
4522                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4523                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4524                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4525                                                                 apply_lines();
4526                                                         }
4527                                                         goto label;
4528                                                 }
4529                                                 if (current->recvq.length() > NetBufferSize)
4530                                                 {
4531                                                         if (current->registered == 7)
4532                                                         {
4533                                                                 kill_link(current,"RecvQ exceeded");
4534                                                         }
4535                                                         else
4536                                                         {
4537                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4538                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4539                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4540                                                                 apply_lines();
4541                                                         }
4542                                                         goto label;
4543                                                 }
4544                                                 // while there are complete lines to process...
4545                                                 while (current->BufferIsReady())
4546                                                 {
4547                                                         floodlines++;
4548                                                         if (TIME > current->reset_due)
4549                                                         {
4550                                                                 current->reset_due = TIME + current->threshold;
4551                                                                 current->lines_in = 0;
4552                                                         }
4553                                                         current->lines_in++;
4554                                                         if (current->lines_in > current->flood)
4555                                                         {
4556                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4557                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4558                                                                 kill_link(current,"Excess flood");
4559                                                                 goto label;
4560                                                         }
4561                                                         if ((floodlines > current->flood) && (current->flood != 0))
4562                                                         {
4563                                                                 if (current->registered == 7)
4564                                                                 {
4565                                                                         log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4566                                                                         WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4567                                                                         kill_link(current,"Excess flood");
4568                                                                 }
4569                                                                 else
4570                                                                 {
4571                                                                         add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4572                                                                         apply_lines();
4573                                                                 }
4574                                                                 goto label;
4575                                                         }
4576                                                         char sanitized[MAXBUF];
4577                                                         // use GetBuffer to copy single lines into the sanitized string
4578                                                         std::string single_line = current->GetBuffer();
4579                                                         current->bytes_in += single_line.length();
4580                                                         current->cmds_in++;
4581                                                         if (single_line.length()>512)
4582                                                         {
4583                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4584                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4585                                                                 kill_link(current,"Excess flood");
4586                                                                 goto label;
4587                                                         }
4588                                                         strlcpy(sanitized,single_line.c_str(),MAXBUF);
4589                                                         if (*sanitized)
4590                                                         {
4591                                                                 userrec* old_comp = fd_ref_table[currfd];
4592                                                                 // we're gonna re-scan to check if the nick is gone, after every
4593                                                                 // command - if it has, we're gonna bail
4594                                                                 process_buffer(sanitized,current);
4595                                                                 // look for the user's record in case it's changed... if theyve quit,
4596                                                                 // we cant do anything more with their buffer, so bail.
4597                                                                 // there used to be an ugly, slow loop here. Now we have a reference
4598                                                                 // table, life is much easier (and FASTER)
4599                                                                 userrec* new_comp = fd_ref_table[currfd];
4600                                                                 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
4601                                                                         goto label;
4602
4603                                                         }
4604                                                 }
4605                                                 goto label;
4606                                         }
4607
4608                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4609                                         {
4610                                                 log(DEBUG,"killing: %s",cu->nick);
4611                                                 kill_link(cu,strerror(errno));
4612                                                 goto label;
4613                                         }
4614                                 }
4615                                 // result EAGAIN means nothing read
4616                                 if (result == EAGAIN)
4617                                 {
4618                                 }
4619                                 else
4620                                 if (result == 0)
4621                                 {
4622 #ifndef USE_KQUEUE
4623                                         if (count2->second)
4624                                         {
4625 #endif
4626                                                 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
4627                                                 kill_link(cu,"Client exited");
4628                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4629                                                 log(DEBUG,"Bailing from client exit");
4630                                                 goto label;
4631 #ifndef USE_KQUEUE
4632                                         }
4633 #endif
4634                                 }
4635                                 else if (result > 0)
4636                                 {
4637                                 }
4638                         }
4639                 }
4640                 for (int q = 0; q < total_in_this_set; q++)
4641                 {
4642                         count2++;
4643                 }
4644         }
4645
4646 #ifdef _POSIX_PRIORITY_SCHEDULING
4647         sched_yield();
4648 #endif
4649
4650 #ifndef USE_KQUEUE
4651         // set up select call
4652         for (count = 0; count < boundPortCount; count++)
4653         {
4654                 FD_SET (openSockfd[count], &selectFds);
4655         }
4656
4657         tv.tv_usec = 30000L;
4658         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4659
4660         /* select is reporting a waiting socket. Poll them all to find out which */
4661         if (selectResult > 0)
4662         {
4663                 for (count = 0; count < boundPortCount; count++)
4664                 {
4665                         if (FD_ISSET (openSockfd[count], &selectFds))
4666                         {
4667 #else
4668         ts.tv_sec = 0;
4669         ts.tv_nsec = 30000L;
4670         i = kevent(lkq, NULL, 0, ke_list, 32, &ts);
4671         if (i > 0) for (j = 0; j < i; j++)
4672         {
4673                 log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke.ident);
4674                 // this isnt as efficient as it could be, we could create a reference table
4675                 // to reference bound ports by fd, but this isnt a big bottleneck as the actual
4676                 // number of listening ports on the average ircd is a small number (less than 20)
4677                 // compared to the number of clients (possibly over 2000)
4678                 for (count = 0; count < boundPortCount; count++)
4679                 {
4680                         if (ke_list[j].ident == openSockfd[count])
4681                         {
4682 #endif
4683                                 char target[MAXBUF], resolved[MAXBUF];
4684                                 length = sizeof (client);
4685                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4686
4687                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4688                                 strlcpy (resolved, target, MAXBUF);
4689
4690                                 if (incomingSockfd < 0)
4691                                 {
4692                                         WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
4693                                         log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
4694                                         statsRefused++;
4695                                 }
4696                                 else
4697                                 {
4698                                         FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
4699                                         statsAccept++;
4700                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4701                                         log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
4702                                 }
4703                                 //goto label;
4704                         }
4705                 }
4706         }
4707         label:
4708         if (0) {};
4709 #ifdef _POSIX_PRIORITY_SCHEDULING
4710         sched_yield();
4711         sched_yield();
4712 #endif
4713 }
4714 /* not reached */
4715 close (incomingSockfd);
4716 }
4717