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],sqmax[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                 ConfValue("connect","sendq",i,sqmax,&config_f);
 467                 if (Value[0])
 468                 {
 469                         strlcpy(c.host,Value,MAXBUF);
 470                         c.type = CC_ALLOW;
 471                         strlcpy(Value,"",MAXBUF);
 472                         ConfValue("connect","password",i,Value,&config_f);
 473                         strlcpy(c.pass,Value,MAXBUF);
 474                         c.registration_timeout = 90; // default is 2 minutes
 475                         c.pingtime = 120;
 476                         c.flood = atoi(flood);
 477                         c.threshold = 5;
 478                         c.sendqmax = 262144; // 256k
 479                         if (atoi(thold)>0)
 480                         {
 481                                 c.threshold = atoi(thold);
 482                         }
 483                         if (atoi(sqmax)>0)
 484                         {
 485                                 c.sendqmax = atoi(sqmax);
 486                         }
 487                         if (atoi(timeout)>0)
 488                         {
 489                                 c.registration_timeout = atoi(timeout);
 490                         }
 491                         if (atoi(pfreq)>0)
 492                         {
 493                                 c.pingtime = atoi(pfreq);
 494                         }
 495                         Classes.push_back(c);
 496                         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);
 497                 }
 498                 else
 499                 {
 500                         ConfValue("connect","deny",i,Value,&config_f);
 501                         strlcpy(c.host,Value,MAXBUF);
 502                         c.type = CC_DENY;
 503                         Classes.push_back(c);
 504                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 505                 }
 506
 507         }
 508         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 509         read_xline_defaults();
 510         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 511         apply_lines();
 512         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 513         if (!bail)
 514         {
 515                 log(DEFAULT,"Adding and removing modules due to rehash...");
 516
 517                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 518
 519                 // store the old module names
 520                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 521                 {
 522                         old_module_names.push_back(*t);
 523                 }
 524
 525                 // get the new module names
 526                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 527                 {
 528                         ConfValue("module","name",count2,Value,&config_f);
 529                         new_module_names.push_back(Value);
 530                 }
 531
 532                 // now create a list of new modules that are due to be loaded
 533                 // and a seperate list of modules which are due to be unloaded
 534                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 535                 {
 536                         bool added = true;
 537                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 538                         {
 539                                 if (*old == *_new)
 540                                         added = false;
 541                         }
 542                         if (added)
 543                                 added_modules.push_back(*_new);
 544                 }
 545                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 546                 {
 547                         bool removed = true;
 548                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 549                         {
 550                                 if (*newm == *oldm)
 551                                         removed = false;
 552                         }
 553                         if (removed)
 554                                 removed_modules.push_back(*oldm);
 555                 }
 556                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 557                 // to be removed.
 558                 int rem = 0, add = 0;
 559                 if (!removed_modules.empty())
 560                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 561                 {
 562                         if (UnloadModule(removing->c_str()))
 563                         {
 564                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 565                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 566                                 rem++;
 567                         }
 568                         else
 569                         {
 570                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 571                         }
 572                 }
 573                 if (!added_modules.empty())
 574                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 575                 {
 576                         if (LoadModule(adding->c_str()))
 577                         {
 578                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 579                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 580                                 add++;
 581                         }
 582                         else
 583                         {
 584                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 585                         }
 586                 }
 587                 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());
 588         }
 589 }
 590
 591 /* write formatted text to a socket, in same format as printf
 592  * New in 1.0 Beta 5 - Nothing is written directly to a users fd any more.
 593  * Instead, data builds up in the users sendq and each time around the mainloop
 594  * this data is flushed to the user's socket (see userrec::FlushWriteBuf).
 595  */
 596
 597 void Write(int sock,char *text, ...)
 598 {
 599         if (sock < 0)
 600                 return;
 601         if (!text)
 602         {
 603                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF];
 607         va_list argsPtr;
 608         char tb[MAXBUF];
 609         int res;
 610
 611         va_start (argsPtr, text);
 612         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 613         va_end(argsPtr);
 614         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 615         chop(tb);
 616         if (fd_ref_table[sock])
 617         {
 618                 int MOD_RESULT = 0;
 619                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 620                 fd_ref_table[sock]->AddWriteBuf(tb);
 621                 statsSent += bytes;
 622         }
 623         else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 624 }
 625
 626 /* write a server formatted numeric response to a single socket */
 627
 628 void WriteServ(int sock, char* text, ...)
 629 {
 630         if (sock < 0)
 631                 return;
 632         if (!text)
 633         {
 634                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 635                 return;
 636         }
 637         char textbuffer[MAXBUF],tb[MAXBUF];
 638         int res;
 639         va_list argsPtr;
 640         va_start (argsPtr, text);
 641
 642         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 643         va_end(argsPtr);
 644         int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 645         chop(tb);
 646         if (fd_ref_table[sock])
 647         {
 648                 int MOD_RESULT = 0;
 649                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 650                 fd_ref_table[sock]->AddWriteBuf(tb);
 651                 statsSent += bytes;
 652         }
 653         else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 654 }
 655
 656 /* write text from an originating user to originating user */
 657
 658 void WriteFrom(int sock, userrec *user,char* text, ...)
 659 {
 660         if (sock < 0)
 661                 return;
 662         if ((!text) || (!user))
 663         {
 664                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 665                 return;
 666         }
 667         char textbuffer[MAXBUF],tb[MAXBUF];
 668         va_list argsPtr;
 669         int res;
 670         va_start (argsPtr, text);
 671
 672         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 673         va_end(argsPtr);
 674         int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 675         chop(tb);
 676         if (fd_ref_table[sock])
 677         {
 678                 int MOD_RESULT = 0;
 679                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 680                 fd_ref_table[sock]->AddWriteBuf(tb);
 681                 statsSent += bytes;
 682         }
 683         else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 684 }
 685
 686 /* write text to an destination user from a source user (e.g. user privmsg) */
 687
 688 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 689 {
 690         if ((!dest) || (!data))
 691         {
 692                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 693                 return;
 694         }
 695         if (dest->fd == FD_MAGIC_NUMBER)
 696                 return;
 697         char textbuffer[MAXBUF],tb[MAXBUF];
 698         va_list argsPtr;
 699         va_start (argsPtr, data);
 700         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 701         va_end(argsPtr);
 702         chop(tb);
 703
 704         // if no source given send it from the server.
 705         if (!source)
 706         {
 707                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 708         }
 709         else
 710         {
 711                 WriteFrom(dest->fd,source,"%s",textbuffer);
 712         }
 713 }
 714
 715 /* write formatted text from a source user to all users on a channel
 716  * including the sender (NOT for privmsg, notice etc!) */
 717
 718 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 719 {
 720         if ((!Ptr) || (!user) || (!text))
 721         {
 722                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 723                 return;
 724         }
 725         char textbuffer[MAXBUF];
 726         va_list argsPtr;
 727         va_start (argsPtr, text);
 728         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 729         va_end(argsPtr);
 730
 731         std::vector<char*> *ulist = Ptr->GetUsers();
 732         for (int j = 0; j < ulist->size(); j++)
 733         {
 734                 char* o = (*ulist)[j];
 735                 userrec* otheruser = (userrec*)o;
 736                 if (otheruser->fd != FD_MAGIC_NUMBER)
 737                         WriteTo(user,otheruser,"%s",textbuffer);
 738         }
 739 }
 740
 741 /* write formatted text from a source user to all users on a channel
 742  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 743  * users on remote servers */
 744
 745 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 746 {
 747         if ((!Ptr) || (!text))
 748         {
 749                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 750                 return;
 751         }
 752         char textbuffer[MAXBUF];
 753         va_list argsPtr;
 754         va_start (argsPtr, text);
 755         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 756         va_end(argsPtr);
 757
 758         std::vector<char*> *ulist = Ptr->GetUsers();
 759         for (int j = 0; j < ulist->size(); j++)
 760         {
 761                 char* o = (*ulist)[j];
 762                 userrec* otheruser = (userrec*)o;
 763                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 764                 {
 765                         if (!user)
 766                         {
 767                                 WriteServ(otheruser->fd,"%s",textbuffer);
 768                         }
 769                         else
 770                         {
 771                                 WriteTo(user,otheruser,"%s",textbuffer);
 772                         }
 773                 }
 774         }
 775 }
 776
 777
 778 void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
 779 {
 780         if ((!Ptr) || (!text))
 781         {
 782                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 783                 return;
 784         }
 785         char textbuffer[MAXBUF];
 786         va_list argsPtr;
 787         va_start (argsPtr, text);
 788         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 789         va_end(argsPtr);
 790
 791
 792         std::vector<char*> *ulist = Ptr->GetUsers();
 793         for (int j = 0; j < ulist->size(); j++)
 794         {
 795                 char* o = (*ulist)[j];
 796                 userrec* otheruser = (userrec*)o;
 797                 if (otheruser->fd != FD_MAGIC_NUMBER)
 798                         WriteServ(otheruser->fd,"%s",textbuffer);
 799         }
 800 }
 801
 802
 803 /* write formatted text from a source user to all users on a channel except
 804  * for the sender (for privmsg etc) */
 805
 806 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 807 {
 808         if ((!Ptr) || (!user) || (!text))
 809         {
 810                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 811                 return;
 812         }
 813         char textbuffer[MAXBUF];
 814         va_list argsPtr;
 815         va_start (argsPtr, text);
 816         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 817         va_end(argsPtr);
 818
 819         std::vector<char*> *ulist = Ptr->GetUsers();
 820         for (int j = 0; j < ulist->size(); j++)
 821         {
 822                 char* o = (*ulist)[j];
 823                 userrec* otheruser = (userrec*)o;
 824                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 825                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 826         }
 827 }
 828
 829
 830 std::string GetServerDescription(char* servername)
 831 {
 832         for (int j = 0; j < 32; j++)
 833         {
 834                 if (me[j] != NULL)
 835                 {
 836                         for (int k = 0; k < me[j]->connectors.size(); k++)
 837                         {
 838                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 839                                 {
 840                                         return me[j]->connectors[k].GetDescription();
 841                                 }
 842                         }
 843                 }
 844                 return ServerDesc; // not a remote server that can be found, it must be me.
 845         }
 846 }
 847
 848
 849 /* write a formatted string to all users who share at least one common
 850  * channel, including the source user e.g. for use in NICK */
 851
 852 void WriteCommon(userrec *u, char* text, ...)
 853 {
 854         if (!u)
 855         {
 856                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 857                 return;
 858         }
 859
 860         if (u->registered != 7) {
 861                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 862                 return;
 863         }
 864
 865         char textbuffer[MAXBUF];
 866         va_list argsPtr;
 867         va_start (argsPtr, text);
 868         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 869         va_end(argsPtr);
 870
 871         // FIX: Stops a message going to the same person more than once
 872         bzero(&already_sent,65536);
 873
 874         bool sent_to_at_least_one = false;
 875
 876         for (int i = 0; i < MAXCHANS; i++)
 877         {
 878                 if (u->chans[i].channel)
 879                 {
 880                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 881                         for (int j = 0; j < ulist->size(); j++)
 882                         {
 883                                 char* o = (*ulist)[j];
 884                                 userrec* otheruser = (userrec*)o;
 885                                 if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 886                                 {
 887                                         already_sent[otheruser->fd] = 1;
 888                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 889                                         sent_to_at_least_one = true;
 890                                 }
 891                         }
 892                 }
 893         }
 894         // if the user was not in any channels, no users will receive the text. Make sure the user
 895         // receives their OWN message for WriteCommon
 896         if (!sent_to_at_least_one)
 897         {
 898                 WriteFrom(u->fd,u,"%s",textbuffer);
 899         }
 900 }
 901
 902 /* write a formatted string to all users who share at least one common
 903  * channel, NOT including the source user e.g. for use in QUIT */
 904
 905 void WriteCommonExcept(userrec *u, char* text, ...)
 906 {
 907         if (!u)
 908         {
 909                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 910                 return;
 911         }
 912
 913         if (u->registered != 7) {
 914                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 915                 return;
 916         }
 917
 918         char textbuffer[MAXBUF];
 919         va_list argsPtr;
 920         va_start (argsPtr, text);
 921         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 922         va_end(argsPtr);
 923
 924         bzero(&already_sent,65536);
 925
 926         for (int i = 0; i < MAXCHANS; i++)
 927         {
 928                 if (u->chans[i].channel)
 929                 {
 930                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 931                         for (int j = 0; j < ulist->size(); j++)
 932                         {
 933                                 char* o = (*ulist)[j];
 934                                 userrec* otheruser = (userrec*)o;
 935                                 if (u != otheruser)
 936                                 {
 937                                         if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 938                                         {
 939                                                 already_sent[otheruser->fd] = 1;
 940                                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 941                                         }
 942                                 }
 943                         }
 944                 }
 945         }
 946 }
 947
 948 void WriteOpers(char* text, ...)
 949 {
 950         if (!text)
 951         {
 952                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 953                 return;
 954         }
 955
 956         char textbuffer[MAXBUF];
 957         va_list argsPtr;
 958         va_start (argsPtr, text);
 959         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 960         va_end(argsPtr);
 961
 962         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 963         {
 964                 userrec* a = *i;
 965                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 966                 {
 967                         if (strchr(a->modes,'s'))
 968                         {
 969                                 // send server notices to all with +s
 970                                 WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
 971                         }
 972                 }
 973         }
 974 }
 975
 976 void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
 977 {
 978         if ((!text) || (!source))
 979         {
 980                 log(DEFAULT,"*** BUG *** NoticeAllOpers was given an invalid parameter");
 981                 return;
 982         }
 983
 984         char textbuffer[MAXBUF];
 985         va_list argsPtr;
 986         va_start (argsPtr, text);
 987         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 988         va_end(argsPtr);
 989
 990         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 991         {
 992                 userrec* a = *i;
 993                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 994                 {
 995                         if (strchr(a->modes,'s'))
 996                         {
 997                                 // send server notices to all with +s
 998                                 WriteServ(a->fd,"NOTICE %s :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
 999                         }
1000                 }
1001         }
1002
1003         if (!local_only)
1004         {
1005                 char buffer[MAXBUF];
1006                 snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
1007                 NetSendToAll(buffer);
1008         }
1009 }
1010
1011 // returns TRUE of any users on channel C occupy server 'servername'.
1012
1013 bool ChanAnyOnThisServer(chanrec *c,char* servername)
1014 {
1015         log(DEBUG,"ChanAnyOnThisServer");
1016
1017         std::vector<char*> *ulist = c->GetUsers();
1018         for (int j = 0; j < ulist->size(); j++)
1019         {
1020                 char* o = (*ulist)[j];
1021                 userrec* user = (userrec*)o;
1022                 if (!strcasecmp(user->server,servername))
1023                         return true;
1024         }
1025         return false;
1026 }
1027
1028 // returns true if user 'u' shares any common channels with any users on server 'servername'
1029
1030 bool CommonOnThisServer(userrec* u,const char* servername)
1031 {
1032         log(DEBUG,"ChanAnyOnThisServer");
1033
1034         for (int i = 0; i < MAXCHANS; i++)
1035         {
1036                 if (u->chans[i].channel)
1037                 {
1038                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1039                         for (int j = 0; j < ulist->size(); j++)
1040                         {
1041                                 char* o = (*ulist)[j];
1042                                 userrec* user = (userrec*)o;
1043                                 if (!strcasecmp(user->server,servername))
1044                                         return true;
1045                         }
1046                 }
1047         }
1048         return false;
1049 }
1050
1051
1052 void NetSendToCommon(userrec* u, char* s)
1053 {
1054         char buffer[MAXBUF];
1055         snprintf(buffer,MAXBUF,"%s",s);
1056
1057         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1058
1059         std::string msg = buffer;
1060         FOREACH_MOD OnPacketTransmit(msg,s);
1061         strlcpy(buffer,msg.c_str(),MAXBUF);
1062
1063         for (int j = 0; j < 32; j++)
1064         {
1065                 if (me[j] != NULL)
1066                 {
1067                         for (int k = 0; k < me[j]->connectors.size(); k++)
1068                         {
1069                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1070                                 {
1071                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1072                                 }
1073                         }
1074                 }
1075         }
1076 }
1077
1078
1079 void NetSendToAll(char* s)
1080 {
1081         char buffer[MAXBUF];
1082         snprintf(buffer,MAXBUF,"%s",s);
1083
1084         log(DEBUG,"NetSendToAll: '%s'",s);
1085
1086         std::string msg = buffer;
1087         FOREACH_MOD OnPacketTransmit(msg,s);
1088         strlcpy(buffer,msg.c_str(),MAXBUF);
1089
1090         for (int j = 0; j < 32; j++)
1091         {
1092                 if (me[j] != NULL)
1093                 {
1094                         for (int k = 0; k < me[j]->connectors.size(); k++)
1095                         {
1096                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1097                         }
1098                 }
1099         }
1100 }
1101
1102 void NetSendToAllAlive(char* s)
1103 {
1104         char buffer[MAXBUF];
1105         snprintf(buffer,MAXBUF,"%s",s);
1106
1107         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1108
1109         std::string msg = buffer;
1110         FOREACH_MOD OnPacketTransmit(msg,s);
1111         strlcpy(buffer,msg.c_str(),MAXBUF);
1112
1113         for (int j = 0; j < 32; j++)
1114         {
1115                 if (me[j] != NULL)
1116                 {
1117                         for (int k = 0; k < me[j]->connectors.size(); k++)
1118                         {
1119                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1120                                 {
1121                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1122                                 }
1123                                 else
1124                                 {
1125                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1126                                 }
1127                         }
1128                 }
1129         }
1130 }
1131
1132
1133 void NetSendToOne(char* target,char* s)
1134 {
1135         char buffer[MAXBUF];
1136         snprintf(buffer,MAXBUF,"%s",s);
1137
1138         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1139
1140         std::string msg = buffer;
1141         FOREACH_MOD OnPacketTransmit(msg,s);
1142         strlcpy(buffer,msg.c_str(),MAXBUF);
1143
1144         for (int j = 0; j < 32; j++)
1145         {
1146                 if (me[j] != NULL)
1147                 {
1148                         for (int k = 0; k < me[j]->connectors.size(); k++)
1149                         {
1150                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1151                                 {
1152                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1153                                 }
1154                         }
1155                 }
1156         }
1157 }
1158
1159 void NetSendToAllExcept(const char* target,char* s)
1160 {
1161         char buffer[MAXBUF];
1162         snprintf(buffer,MAXBUF,"%s",s);
1163
1164         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1165
1166         std::string msg = buffer;
1167         FOREACH_MOD OnPacketTransmit(msg,s);
1168         strlcpy(buffer,msg.c_str(),MAXBUF);
1169
1170         for (int j = 0; j < 32; j++)
1171         {
1172                 if (me[j] != NULL)
1173                 {
1174                         for (int k = 0; k < me[j]->connectors.size(); k++)
1175                         {
1176                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1177                                 {
1178                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1179                                 }
1180                         }
1181                 }
1182         }
1183 }
1184
1185
1186 void WriteMode(const char* modes, int flags, const char* text, ...)
1187 {
1188         if ((!text) || (!modes) || (!flags))
1189         {
1190                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1191                 return;
1192         }
1193
1194         char textbuffer[MAXBUF];
1195         va_list argsPtr;
1196         va_start (argsPtr, text);
1197         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1198         va_end(argsPtr);
1199         int modelen = strlen(modes);
1200
1201         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1202         {
1203                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1204                 {
1205                         bool send_to_user = false;
1206
1207                         if (flags == WM_AND)
1208                         {
1209                                 send_to_user = true;
1210                                 for (int n = 0; n < modelen; n++)
1211                                 {
1212                                         if (!hasumode(i->second,modes[n]))
1213                                         {
1214                                                 send_to_user = false;
1215                                                 break;
1216                                         }
1217                                 }
1218                         }
1219                         else if (flags == WM_OR)
1220                         {
1221                                 send_to_user = false;
1222                                 for (int n = 0; n < modelen; n++)
1223                                 {
1224                                         if (hasumode(i->second,modes[n]))
1225                                         {
1226                                                 send_to_user = true;
1227                                                 break;
1228                                         }
1229                                 }
1230                         }
1231
1232                         if (send_to_user)
1233                         {
1234                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1235                         }
1236                 }
1237         }
1238 }
1239
1240
1241 void NoticeAll(userrec *source, bool local_only, char* text, ...)
1242 {
1243         if ((!text) || (!source))
1244         {
1245                 log(DEFAULT,"*** BUG *** NoticeAll was given an invalid parameter");
1246                 return;
1247         }
1248
1249         char textbuffer[MAXBUF];
1250         va_list argsPtr;
1251         va_start (argsPtr, text);
1252         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1253         va_end(argsPtr);
1254
1255         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1256         {
1257                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1258                 {
1259                         WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
1260                 }
1261         }
1262
1263         if (!local_only)
1264         {
1265                 char buffer[MAXBUF];
1266                 snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
1267                 NetSendToAll(buffer);
1268         }
1269
1270 }
1271
1272 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1273 {
1274         if ((!text) || (!source))
1275         {
1276                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1277                 return;
1278         }
1279
1280         char textbuffer[MAXBUF];
1281         va_list argsPtr;
1282         va_start (argsPtr, text);
1283         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1284         va_end(argsPtr);
1285
1286         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1287         {
1288                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1289                 {
1290                         if (strchr(i->second->modes,'w'))
1291                         {
1292                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1293                         }
1294                 }
1295         }
1296
1297         if (!local_only)
1298         {
1299                 char buffer[MAXBUF];
1300                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1301                 NetSendToAll(buffer);
1302         }
1303 }
1304
1305 /* convert a string to lowercase. Note following special circumstances
1306  * taken from RFC 1459. Many "official" server branches still hold to this
1307  * rule so i will too;
1308  *
1309  *  Because of IRC's scandanavian origin, the characters {}| are
1310  *  considered to be the lower case equivalents of the characters []\,
1311  *  respectively. This is a critical issue when determining the
1312  *  equivalence of two nicknames.
1313  */
1314
1315 void strlower(char *n)
1316 {
1317         if (n)
1318         {
1319                 for (char* t = n; *t; t++)
1320                         *t = lowermap[*t];
1321         }
1322 }
1323
1324
1325
1326 /* Find a user record by nickname and return a pointer to it */
1327
1328 userrec* Find(std::string nick)
1329 {
1330         user_hash::iterator iter = clientlist.find(nick);
1331
1332         if (iter == clientlist.end())
1333                 /* Couldn't find it */
1334                 return NULL;
1335
1336         return iter->second;
1337 }
1338
1339 /* find a channel record by channel name and return a pointer to it */
1340
1341 chanrec* FindChan(const char* chan)
1342 {
1343         if (!chan)
1344         {
1345                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1346                 return NULL;
1347         }
1348
1349         chan_hash::iterator iter = chanlist.find(chan);
1350
1351         if (iter == chanlist.end())
1352                 /* Couldn't find it */
1353                 return NULL;
1354
1355         return iter->second;
1356 }
1357
1358
1359 long GetMaxBans(char* name)
1360 {
1361         char CM[MAXBUF];
1362         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1363         {
1364                 ConfValue("banlist","chan",count,CM,&config_f);
1365                 if (match(name,CM))
1366                 {
1367                         ConfValue("banlist","limit",count,CM,&config_f);
1368                         return atoi(CM);
1369                 }
1370         }
1371         return 64;
1372 }
1373
1374
1375 void purge_empty_chans(userrec* u)
1376 {
1377
1378         int go_again = 1, purge = 0;
1379
1380         // firstly decrement the count on each channel
1381         for (int f = 0; f < MAXCHANS; f++)
1382         {
1383                 if (u->chans[f].channel)
1384                 {
1385                         u->chans[f].channel->DelUser((char*)u);
1386                 }
1387         }
1388
1389         for (int i = 0; i < MAXCHANS; i++)
1390         {
1391                 if (u->chans[i].channel)
1392                 {
1393                         if (!usercount(u->chans[i].channel))
1394                         {
1395                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1396                                 /* kill the record */
1397                                 if (i2 != chanlist.end())
1398                                 {
1399                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1400                                         if (i2->second)
1401                                                 delete i2->second;
1402                                         chanlist.erase(i2);
1403                                         go_again = 1;
1404                                         purge++;
1405                                         u->chans[i].channel = NULL;
1406                                 }
1407                         }
1408                         else
1409                         {
1410                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1411                         }
1412                 }
1413         }
1414         log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
1415
1416         DeleteOper(u);
1417 }
1418
1419
1420 char scratch[MAXBUF];
1421 char sparam[MAXBUF];
1422
1423 char* chanmodes(chanrec *chan)
1424 {
1425         if (!chan)
1426         {
1427                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1428                 strcpy(scratch,"");
1429                 return scratch;
1430         }
1431
1432         strcpy(scratch,"");
1433         strcpy(sparam,"");
1434         if (chan->noexternal)
1435         {
1436                 strlcat(scratch,"n",MAXMODES);
1437         }
1438         if (chan->topiclock)
1439         {
1440                 strlcat(scratch,"t",MAXMODES);
1441         }
1442         if (chan->key[0])
1443         {
1444                 strlcat(scratch,"k",MAXMODES);
1445         }
1446         if (chan->limit)
1447         {
1448                 strlcat(scratch,"l",MAXMODES);
1449         }
1450         if (chan->inviteonly)
1451         {
1452                 strlcat(scratch,"i",MAXMODES);
1453         }
1454         if (chan->moderated)
1455         {
1456                 strlcat(scratch,"m",MAXMODES);
1457         }
1458         if (chan->secret)
1459         {
1460                 strlcat(scratch,"s",MAXMODES);
1461         }
1462         if (chan->c_private)
1463         {
1464                 strlcat(scratch,"p",MAXMODES);
1465         }
1466         if (chan->key[0])
1467         {
1468                 strlcat(sparam," ",MAXBUF);
1469                 strlcat(sparam,chan->key,MAXBUF);
1470         }
1471         if (chan->limit)
1472         {
1473                 char foo[24];
1474                 sprintf(foo," %lu",(unsigned long)chan->limit);
1475                 strlcat(sparam,foo,MAXBUF);
1476         }
1477         if (*chan->custom_modes)
1478         {
1479                 strlcat(scratch,chan->custom_modes,MAXMODES);
1480                 for (int z = 0; chan->custom_modes[z] != 0; z++)
1481                 {
1482                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1483                         if (extparam != "")
1484                         {
1485                                 strlcat(sparam," ",MAXBUF);
1486                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1487                         }
1488                 }
1489         }
1490         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1491         strlcat(scratch,sparam,MAXMODES);
1492         return scratch;
1493 }
1494
1495
1496 /* compile a userlist of a channel into a string, each nick seperated by
1497  * spaces and op, voice etc status shown as @ and + */
1498
1499 void userlist(userrec *user,chanrec *c)
1500 {
1501         if ((!c) || (!user))
1502         {
1503                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1504                 return;
1505         }
1506
1507         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1508
1509         std::vector<char*> *ulist = c->GetUsers();
1510         for (int i = 0; i < ulist->size(); i++)
1511         {
1512                 char* o = (*ulist)[i];
1513                 userrec* otheruser = (userrec*)o;
1514                 if ((!has_channel(user,c)) && (strchr(otheruser->modes,'i')))
1515                 {
1516                         /* user is +i, and source not on the channel, does not show
1517                          * nick in NAMES list */
1518                         continue;
1519                 }
1520                 strlcat(list,cmode(otheruser,c),MAXBUF);
1521                 strlcat(list,otheruser->nick,MAXBUF);
1522                 strlcat(list," ",MAXBUF);
1523                 if (strlen(list)>(480-NICKMAX))
1524                 {
1525                         /* list overflowed into
1526                          * multiple numerics */
1527                         WriteServ(user->fd,"%s",list);
1528                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1529                 }
1530         }
1531         /* if whats left in the list isnt empty, send it */
1532         if (list[strlen(list)-1] != ':')
1533         {
1534                 WriteServ(user->fd,"%s",list);
1535         }
1536 }
1537
1538 /* return a count of the users on a specific channel accounting for
1539  * invisible users who won't increase the count. e.g. for /LIST */
1540
1541 int usercount_i(chanrec *c)
1542 {
1543         int count = 0;
1544
1545         if (!c)
1546         {
1547                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1548                 return 0;
1549         }
1550
1551         strcpy(list,"");
1552         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1553         {
1554                 if (i->second)
1555                 {
1556                         if (has_channel(i->second,c))
1557                         {
1558                                 if (isnick(i->second->nick))
1559                                 {
1560                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1561                                         {
1562                                                 /* user is +i, and source not on the channel, does not show
1563                                                  * nick in NAMES list */
1564                                                 continue;
1565                                         }
1566                                         count++;
1567                                 }
1568                         }
1569                 }
1570         }
1571         log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
1572         return count;
1573 }
1574
1575
1576 int usercount(chanrec *c)
1577 {
1578         if (!c)
1579         {
1580                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1581                 return 0;
1582         }
1583         int count = c->GetUserCounter();
1584         log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
1585         return count;
1586 }
1587
1588
1589 /* add a channel to a user, creating the record for it if needed and linking
1590  * it to the user record */
1591
1592 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1593 {
1594         if ((!user) || (!cn))
1595         {
1596                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1597                 return 0;
1598         }
1599
1600         chanrec* Ptr;
1601         int created = 0;
1602         char cname[MAXBUF];
1603
1604         strncpy(cname,cn,MAXBUF);
1605
1606         // we MUST declare this wherever we use FOREACH_RESULT
1607         int MOD_RESULT = 0;
1608
1609         if (strlen(cname) > CHANMAX-1)
1610         {
1611                 cname[CHANMAX-1] = '\0';
1612         }
1613
1614         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1615
1616         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1617         {
1618                 return NULL; // already on the channel!
1619         }
1620
1621
1622         if (!FindChan(cname))
1623         {
1624                 MOD_RESULT = 0;
1625                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1626                 if (MOD_RESULT == 1) {
1627                         return NULL;
1628                 }
1629
1630                 /* create a new one */
1631                 log(DEBUG,"add_channel: creating: %s",cname);
1632                 {
1633                         chanlist[cname] = new chanrec();
1634
1635                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1636                         chanlist[cname]->topiclock = 1;
1637                         chanlist[cname]->noexternal = 1;
1638                         chanlist[cname]->created = TIME;
1639                         strcpy(chanlist[cname]->topic, "");
1640                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1641                         chanlist[cname]->topicset = 0;
1642                         Ptr = chanlist[cname];
1643                         log(DEBUG,"add_channel: created: %s",cname);
1644                         /* set created to 2 to indicate user
1645                          * is the first in the channel
1646                          * and should be given ops */
1647                         created = 2;
1648                 }
1649         }
1650         else
1651         {
1652                 /* channel exists, just fish out a pointer to its struct */
1653                 Ptr = FindChan(cname);
1654                 if (Ptr)
1655                 {
1656                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1657
1658                         // the override flag allows us to bypass channel modes
1659                         // and bans (used by servers)
1660                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1661                         {
1662                                 log(DEBUG,"Not overriding...");
1663                                 MOD_RESULT = 0;
1664                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1665                                 if (MOD_RESULT == 1) {
1666                                         return NULL;
1667                                 }
1668                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1669
1670                                 if (!MOD_RESULT)
1671                                 {
1672                                         log(DEBUG,"add_channel: checking key, invite, etc");
1673                                         MOD_RESULT = 0;
1674                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1675                                         if (MOD_RESULT == 0)
1676                                         {
1677                                                 if (Ptr->key[0])
1678                                                 {
1679                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1680                                                         if (!key)
1681                                                         {
1682                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1683                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1684                                                                 return NULL;
1685                                                         }
1686                                                         else
1687                                                         {
1688                                                                 if (strcasecmp(key,Ptr->key))
1689                                                                 {
1690                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1691                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1692                                                                         return NULL;
1693                                                                 }
1694                                                         }
1695                                                 }
1696                                                 log(DEBUG,"add_channel: no key");
1697                                         }
1698                                         MOD_RESULT = 0;
1699                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1700                                         if (MOD_RESULT == 0)
1701                                         {
1702                                                 if (Ptr->inviteonly)
1703                                                 {
1704                                                         log(DEBUG,"add_channel: channel is +i");
1705                                                         if (user->IsInvited(Ptr->name))
1706                                                         {
1707                                                                 /* user was invited to channel */
1708                                                                 /* there may be an optional channel NOTICE here */
1709                                                         }
1710                                                         else
1711                                                         {
1712                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1713                                                                 return NULL;
1714                                                         }
1715                                                 }
1716                                                 log(DEBUG,"add_channel: channel is not +i");
1717                                         }
1718                                         MOD_RESULT = 0;
1719                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1720                                         if (MOD_RESULT == 0)
1721                                         {
1722                                                 if (Ptr->limit)
1723                                                 {
1724                                                         if (usercount(Ptr) >= Ptr->limit)
1725                                                         {
1726                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1727                                                                 return NULL;
1728                                                         }
1729                                                 }
1730                                         }
1731                                         log(DEBUG,"add_channel: about to walk banlist");
1732                                         MOD_RESULT = 0;
1733                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1734                                         if (MOD_RESULT == 0)
1735                                         {
1736                                                 /* check user against the channel banlist */
1737                                                 if (Ptr)
1738                                                 {
1739                                                         if (Ptr->bans.size())
1740                                                         {
1741                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1742                                                                 {
1743                                                                         if (match(user->GetFullHost(),i->data))
1744                                                                         {
1745                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1746                                                                                 return NULL;
1747                                                                         }
1748                                                                 }
1749                                                         }
1750                                                 }
1751                                                 log(DEBUG,"add_channel: bans checked");
1752                                         }
1753
1754                                 }
1755
1756
1757                                 if ((Ptr) && (user))
1758                                 {
1759                                         user->RemoveInvite(Ptr->name);
1760                                 }
1761
1762                                 log(DEBUG,"add_channel: invites removed");
1763
1764                         }
1765                         else
1766                         {
1767                                 log(DEBUG,"Overridden checks");
1768                         }
1769
1770
1771                 }
1772                 created = 1;
1773         }
1774
1775         log(DEBUG,"Passed channel checks");
1776
1777         for (int index =0; index != MAXCHANS; index++)
1778         {
1779                 log(DEBUG,"Check location %d",index);
1780                 if (user->chans[index].channel == NULL)
1781                 {
1782                         log(DEBUG,"Adding into their channel list at location %d",index);
1783
1784                         if (created == 2)
1785                         {
1786                                 /* first user in is given ops */
1787                                 user->chans[index].uc_modes = UCMODE_OP;
1788                         }
1789                         else
1790                         {
1791                                 user->chans[index].uc_modes = 0;
1792                         }
1793                         user->chans[index].channel = Ptr;
1794                         Ptr->IncUserCounter();
1795                         Ptr->AddUser((char*)user);
1796                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1797
1798                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1799                         {
1800                                 // use the stamdard J token with no privilages.
1801                                 char buffer[MAXBUF];
1802                                 if (created == 2)
1803                                 {
1804                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1805                                 }
1806                                 else
1807                                 {
1808                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1809                                 }
1810                                 NetSendToAll(buffer);
1811                         }
1812
1813                         log(DEBUG,"Sent JOIN to client");
1814
1815                         if (Ptr->topicset)
1816                         {
1817                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1818                                 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
1819                         }
1820                         userlist(user,Ptr);
1821                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1822                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1823                         //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
1824                         FOREACH_MOD OnUserJoin(user,Ptr);
1825                         return Ptr;
1826                 }
1827         }
1828         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1829         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1830         return NULL;
1831 }
1832
1833 /* remove a channel from a users record, and remove the record from memory
1834  * if the channel has become empty */
1835
1836 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1837 {
1838         if ((!user) || (!cname))
1839         {
1840                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1841                 return NULL;
1842         }
1843
1844         chanrec* Ptr;
1845
1846         if ((!cname) || (!user))
1847         {
1848                 return NULL;
1849         }
1850
1851         Ptr = FindChan(cname);
1852
1853         if (!Ptr)
1854         {
1855                 return NULL;
1856         }
1857
1858         FOREACH_MOD OnUserPart(user,Ptr);
1859         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1860
1861         for (int i =0; i != MAXCHANS; i++)
1862         {
1863                 /* zap it from the channel list of the user */
1864                 if (user->chans[i].channel == Ptr)
1865                 {
1866                         if (reason)
1867                         {
1868                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1869
1870                                 if (!local)
1871                                 {
1872                                         char buffer[MAXBUF];
1873                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1874                                         NetSendToAll(buffer);
1875                                 }
1876
1877
1878                         }
1879                         else
1880                         {
1881                                 if (!local)
1882                                 {
1883                                         char buffer[MAXBUF];
1884                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1885                                         NetSendToAll(buffer);
1886                                 }
1887
1888                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1889                         }
1890                         user->chans[i].uc_modes = 0;
1891                         user->chans[i].channel = NULL;
1892                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1893                         break;
1894                 }
1895         }
1896
1897         Ptr->DelUser((char*)user);
1898
1899         /* if there are no users left on the channel */
1900         if (!usercount(Ptr))
1901         {
1902                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1903
1904                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1905
1906                 /* kill the record */
1907                 if (iter != chanlist.end())
1908                 {
1909                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1910                         delete Ptr;
1911                         chanlist.erase(iter);
1912                 }
1913         }
1914 }
1915
1916
1917 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1918 {
1919         if ((!src) || (!user) || (!Ptr) || (!reason))
1920         {
1921                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1922                 return;
1923         }
1924
1925         if ((!Ptr) || (!user) || (!src))
1926         {
1927                 return;
1928         }
1929
1930         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1931
1932         if (!has_channel(user,Ptr))
1933         {
1934                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1935                 return;
1936         }
1937
1938         int MOD_RESULT = 0;
1939         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1940         if (MOD_RESULT == ACR_DENY)
1941                 return;
1942
1943         if (MOD_RESULT == ACR_DEFAULT)
1944         {
1945                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1946                 {
1947                         if (cstatus(src,Ptr) == STATUS_HOP)
1948                         {
1949                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1950                         }
1951                         else
1952                         {
1953                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1954                         }
1955
1956                         return;
1957                 }
1958         }
1959
1960         MOD_RESULT = 0;
1961         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1962         if (MOD_RESULT)
1963                 return;
1964
1965         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1966
1967         for (int i =0; i != MAXCHANS; i++)
1968         {
1969                 /* zap it from the channel list of the user */
1970                 if (user->chans[i].channel)
1971                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1972                 {
1973                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1974                         user->chans[i].uc_modes = 0;
1975                         user->chans[i].channel = NULL;
1976                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1977                         break;
1978                 }
1979         }
1980
1981         Ptr->DelUser((char*)user);
1982
1983         /* if there are no users left on the channel */
1984         if (!usercount(Ptr))
1985         {
1986                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1987
1988                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1989
1990                 /* kill the record */
1991                 if (iter != chanlist.end())
1992                 {
1993                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1994                         delete Ptr;
1995                         chanlist.erase(iter);
1996                 }
1997         }
1998 }
1999
2000
2001
2002
2003 /* This function pokes and hacks at a parameter list like the following:
2004  *
2005  * PART #winbot,#darkgalaxy :m00!
2006  *
2007  * to turn it into a series of individual calls like this:
2008  *
2009  * PART #winbot :m00!
2010  * PART #darkgalaxy :m00!
2011  *
2012  * The seperate calls are sent to a callback function provided by the caller
2013  * (the caller will usually call itself recursively). The callback function
2014  * must be a command handler. Calling this function on a line with no list causes
2015  * no action to be taken. You must provide a starting and ending parameter number
2016  * where the range of the list can be found, useful if you have a terminating
2017  * parameter as above which is actually not part of the list, or parameters
2018  * before the actual list as well. This code is used by many functions which
2019  * can function as "one to list" (see the RFC) */
2020
2021 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2022 {
2023         char plist[MAXBUF];
2024         char *param;
2025         char *pars[32];
2026         char blog[32][MAXBUF];
2027         char blog2[32][MAXBUF];
2028         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2029         char keystr[MAXBUF];
2030         char moo[MAXBUF];
2031
2032         for (int i = 0; i <32; i++)
2033                 strcpy(blog[i],"");
2034
2035         for (int i = 0; i <32; i++)
2036                 strcpy(blog2[i],"");
2037
2038         strcpy(moo,"");
2039         for (int i = 0; i <10; i++)
2040         {
2041                 if (!parameters[i])
2042                 {
2043                         parameters[i] = moo;
2044                 }
2045         }
2046         if (joins)
2047         {
2048                 if (pcnt > 1) /* we have a key to copy */
2049                 {
2050                         strlcpy(keystr,parameters[1],MAXBUF);
2051                 }
2052         }
2053
2054         if (!parameters[start])
2055         {
2056                 return 0;
2057         }
2058         if (!strchr(parameters[start],','))
2059         {
2060                 return 0;
2061         }
2062         strcpy(plist,"");
2063         for (int i = start; i <= end; i++)
2064         {
2065                 if (parameters[i])
2066                 {
2067                         strlcat(plist,parameters[i],MAXBUF);
2068                 }
2069         }
2070
2071         j = 0;
2072         param = plist;
2073
2074         t = strlen(plist);
2075         for (int i = 0; i < t; i++)
2076         {
2077                 if (plist[i] == ',')
2078                 {
2079                         plist[i] = '\0';
2080                         strlcpy(blog[j++],param,MAXBUF);
2081                         param = plist+i+1;
2082                         if (j>20)
2083                         {
2084                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2085                                 return 1;
2086                         }
2087                 }
2088         }
2089         strlcpy(blog[j++],param,MAXBUF);
2090         total = j;
2091
2092         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2093         {
2094                 strcat(keystr,",");
2095         }
2096
2097         if ((joins) && (keystr))
2098         {
2099                 if (strchr(keystr,','))
2100                 {
2101                         j = 0;
2102                         param = keystr;
2103                         t2 = strlen(keystr);
2104                         for (int i = 0; i < t2; i++)
2105                         {
2106                                 if (keystr[i] == ',')
2107                                 {
2108                                         keystr[i] = '\0';
2109                                         strlcpy(blog2[j++],param,MAXBUF);
2110                                         param = keystr+i+1;
2111                                 }
2112                         }
2113                         strlcpy(blog2[j++],param,MAXBUF);
2114                         total2 = j;
2115                 }
2116         }
2117
2118         for (j = 0; j < total; j++)
2119         {
2120                 if (blog[j])
2121                 {
2122                         pars[0] = blog[j];
2123                 }
2124                 for (q = end; q < pcnt-1; q++)
2125                 {
2126                         if (parameters[q+1])
2127                         {
2128                                 pars[q-end+1] = parameters[q+1];
2129                         }
2130                 }
2131                 if ((joins) && (parameters[1]))
2132                 {
2133                         if (pcnt > 1)
2134                         {
2135                                 pars[1] = blog2[j];
2136                         }
2137                         else
2138                         {
2139                                 pars[1] = NULL;
2140                         }
2141                 }
2142                 /* repeatedly call the function with the hacked parameter list */
2143                 if ((joins) && (pcnt > 1))
2144                 {
2145                         if (pars[1])
2146                         {
2147                                 // pars[1] already set up and containing key from blog2[j]
2148                                 fn(pars,2,u);
2149                         }
2150                         else
2151                         {
2152                                 pars[1] = parameters[1];
2153                                 fn(pars,2,u);
2154                         }
2155                 }
2156                 else
2157                 {
2158                         fn(pars,pcnt-(end-start),u);
2159                 }
2160         }
2161
2162         return 1;
2163 }
2164
2165
2166
2167 void kill_link(userrec *user,const char* r)
2168 {
2169         user_hash::iterator iter = clientlist.find(user->nick);
2170
2171         char reason[MAXBUF];
2172
2173         strncpy(reason,r,MAXBUF);
2174
2175         if (strlen(reason)>MAXQUIT)
2176         {
2177                 reason[MAXQUIT-1] = '\0';
2178         }
2179
2180         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2181         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2182         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2183
2184         if (user->registered == 7) {
2185                 FOREACH_MOD OnUserQuit(user);
2186                 WriteCommonExcept(user,"QUIT :%s",reason);
2187
2188                 // Q token must go to ALL servers!!!
2189                 char buffer[MAXBUF];
2190                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2191                 NetSendToAll(buffer);
2192         }
2193
2194         FOREACH_MOD OnUserDisconnect(user);
2195
2196         if (user->fd > -1)
2197         {
2198                 FOREACH_MOD OnRawSocketClose(user->fd);
2199 #ifdef USE_KQUEUE
2200                 struct kevent ke;
2201                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2202                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2203                 if (i == -1)
2204                 {
2205                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2206                 }
2207 #endif
2208                 shutdown(user->fd,2);
2209                 close(user->fd);
2210         }
2211
2212         if (user->registered == 7) {
2213                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2214                 AddWhoWas(user);
2215         }
2216
2217         if (user->registered == 7) {
2218                 purge_empty_chans(user);
2219         }
2220
2221         if (iter != clientlist.end())
2222         {
2223                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2224                 if (user->fd > -1)
2225                         fd_ref_table[user->fd] = NULL;
2226                 delete user;
2227                 clientlist.erase(iter);
2228         }
2229 }
2230
2231 void kill_link_silent(userrec *user,const char* r)
2232 {
2233         user_hash::iterator iter = clientlist.find(user->nick);
2234
2235         char reason[MAXBUF];
2236
2237         strncpy(reason,r,MAXBUF);
2238
2239         if (strlen(reason)>MAXQUIT)
2240         {
2241                 reason[MAXQUIT-1] = '\0';
2242         }
2243
2244         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2245         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2246         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2247
2248         if (user->registered == 7) {
2249                 FOREACH_MOD OnUserQuit(user);
2250                 WriteCommonExcept(user,"QUIT :%s",reason);
2251
2252                 // Q token must go to ALL servers!!!
2253                 char buffer[MAXBUF];
2254                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2255                 NetSendToAll(buffer);
2256         }
2257
2258         FOREACH_MOD OnUserDisconnect(user);
2259
2260         if (user->fd > -1)
2261         {
2262                 FOREACH_MOD OnRawSocketClose(user->fd);
2263 #ifdef USE_KQUEUE
2264                 struct kevent ke;
2265                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2266                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2267                 if (i == -1)
2268                 {
2269                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2270                 }
2271 #endif
2272                 shutdown(user->fd,2);
2273                 close(user->fd);
2274         }
2275
2276         if (user->registered == 7) {
2277                 purge_empty_chans(user);
2278         }
2279
2280         if (iter != clientlist.end())
2281         {
2282                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2283                 if (user->fd > -1)
2284                         fd_ref_table[user->fd] = NULL;
2285                 delete user;
2286                 clientlist.erase(iter);
2287         }
2288 }
2289
2290
2291
2292 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2293
2294 char* Passwd(userrec *user)
2295 {
2296         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2297         {
2298                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2299                 {
2300                         return i->pass;
2301                 }
2302         }
2303         return "";
2304 }
2305
2306 bool IsDenied(userrec *user)
2307 {
2308         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2309         {
2310                 if (match(user->host,i->host) && (i->type == CC_DENY))
2311                 {
2312                         return true;
2313                 }
2314         }
2315         return false;
2316 }
2317
2318
2319
2320
2321 /* sends out an error notice to all connected clients (not to be used
2322  * lightly!) */
2323
2324 void send_error(char *s)
2325 {
2326         log(DEBUG,"send_error: %s",s);
2327         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2328         {
2329                 if (isnick(i->second->nick))
2330                 {
2331                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2332                 }
2333                 else
2334                 {
2335                         // fix - unregistered connections receive ERROR, not NOTICE
2336                         Write(i->second->fd,"ERROR :%s",s);
2337                 }
2338         }
2339 }
2340
2341 void Error(int status)
2342 {
2343         signal (SIGALRM, SIG_IGN);
2344         signal (SIGPIPE, SIG_IGN);
2345         signal (SIGTERM, SIG_IGN);
2346         signal (SIGABRT, SIG_IGN);
2347         signal (SIGSEGV, SIG_IGN);
2348         signal (SIGURG, SIG_IGN);
2349         signal (SIGKILL, SIG_IGN);
2350         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2351         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2352         Exit(status);
2353 }
2354
2355
2356 int main(int argc, char** argv)
2357 {
2358         Start();
2359         srand(time(NULL));
2360         log(DEBUG,"*** InspIRCd starting up!");
2361         if (!FileExists(CONFIG_FILE))
2362         {
2363                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2364                 log(DEFAULT,"main: no config");
2365                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2366                 Exit(ERROR);
2367         }
2368         if (argc > 1) {
2369                 for (int i = 1; i < argc; i++)
2370                 {
2371                         if (!strcmp(argv[i],"-nofork")) {
2372                                 nofork = true;
2373                         }
2374                         if (!strcmp(argv[i],"-wait")) {
2375                                 sleep(6);
2376                         }
2377                         if (!strcmp(argv[i],"-nolimit")) {
2378                                 unlimitcore = true;
2379                         }
2380                 }
2381         }
2382         strlcpy(MyExecutable,argv[0],MAXBUF);
2383
2384         // initialize the lowercase mapping table
2385         for (int cn = 0; cn < 256; cn++)
2386                 lowermap[cn] = cn;
2387         // lowercase the uppercase chars
2388         for (int cn = 65; cn < 91; cn++)
2389                 lowermap[cn] = tolower(cn);
2390         // now replace the specific chars for scandanavian comparison
2391         lowermap['['] = '{';
2392         lowermap[']'] = '}';
2393         lowermap['\\'] = '|';
2394
2395         if (InspIRCd(argv,argc) == ERROR)
2396         {
2397                 log(DEFAULT,"main: daemon function bailed");
2398                 printf("ERROR: could not initialise. Shutting down.\n");
2399                 Exit(ERROR);
2400         }
2401         Exit(TRUE);
2402         return 0;
2403 }
2404
2405 template<typename T> inline string ConvToStr(const T &in)
2406 {
2407         stringstream tmp;
2408         if (!(tmp << in)) return string();
2409         return tmp.str();
2410 }
2411
2412 /* re-allocates a nick in the user_hash after they change nicknames,
2413  * returns a pointer to the new user as it may have moved */
2414
2415 userrec* ReHashNick(char* Old, char* New)
2416 {
2417         //user_hash::iterator newnick;
2418         user_hash::iterator oldnick = clientlist.find(Old);
2419
2420         log(DEBUG,"ReHashNick: %s %s",Old,New);
2421
2422         if (!strcasecmp(Old,New))
2423         {
2424                 log(DEBUG,"old nick is new nick, skipping");
2425                 return oldnick->second;
2426         }
2427
2428         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2429
2430         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2431
2432         clientlist[New] = new userrec();
2433         clientlist[New] = oldnick->second;
2434         clientlist.erase(oldnick);
2435
2436         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2437
2438         return clientlist[New];
2439 }
2440
2441 /* adds or updates an entry in the whowas list */
2442 void AddWhoWas(userrec* u)
2443 {
2444         user_hash::iterator iter = whowas.find(u->nick);
2445         userrec *a = new userrec();
2446         strlcpy(a->nick,u->nick,NICKMAX);
2447         strlcpy(a->ident,u->ident,64);
2448         strlcpy(a->dhost,u->dhost,256);
2449         strlcpy(a->host,u->host,256);
2450         strlcpy(a->fullname,u->fullname,128);
2451         strlcpy(a->server,u->server,256);
2452         a->signon = u->signon;
2453
2454         /* MAX_WHOWAS:   max number of /WHOWAS items
2455          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2456          *               can be replaced by a newer one
2457          */
2458
2459         if (iter == whowas.end())
2460         {
2461                 if (whowas.size() == WHOWAS_MAX)
2462                 {
2463                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2464                         {
2465                                 // 3600 seconds in an hour ;)
2466                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2467                                 {
2468                                         if (i->second) delete i->second;
2469                                         i->second = a;
2470                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2471                                         return;
2472                                 }
2473                         }
2474                 }
2475                 else
2476                 {
2477                         log(DEBUG,"added fresh WHOWAS entry");
2478                         whowas[a->nick] = a;
2479                 }
2480         }
2481         else
2482         {
2483                 log(DEBUG,"updated WHOWAS entry");
2484                 if (iter->second) delete iter->second;
2485                 iter->second = a;
2486         }
2487 }
2488
2489
2490 /* add a client connection to the sockets list */
2491 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2492 {
2493         string tempnick;
2494         char tn2[MAXBUF];
2495         user_hash::iterator iter;
2496
2497         tempnick = ConvToStr(socket) + "-unknown";
2498         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
2499
2500         iter = clientlist.find(tempnick);
2501
2502         // fix by brain.
2503         // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
2504         // using one as a registered connection. As theyre per fd, we can also safely assume
2505         // that we wont have collisions. Therefore, if the nick exists in the list, its only
2506         // used by a dead socket, erase the iterator so that the new client may reclaim it.
2507         // this was probably the cause of 'server ignores me when i hammer it with reconnects'
2508         // issue in earlier alphas/betas
2509         if (iter != clientlist.end())
2510         {
2511                 clientlist.erase(iter);
2512         }
2513
2514         /*
2515          * It is OK to access the value here this way since we know
2516          * it exists, we just created it above.
2517          *
2518          * At NO other time should you access a value in a map or a
2519          * hash_map this way.
2520          */
2521         clientlist[tempnick] = new userrec();
2522
2523         NonBlocking(socket);
2524         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
2525
2526         clientlist[tempnick]->fd = socket;
2527         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2528         strncpy(clientlist[tempnick]->host, host,160);
2529         strncpy(clientlist[tempnick]->dhost, host,160);
2530         strncpy(clientlist[tempnick]->server, ServerName,256);
2531         strncpy(clientlist[tempnick]->ident, "unknown",12);
2532         clientlist[tempnick]->registered = 0;
2533         clientlist[tempnick]->signon = TIME+dns_timeout;
2534         clientlist[tempnick]->lastping = 1;
2535         clientlist[tempnick]->port = port;
2536         strncpy(clientlist[tempnick]->ip,ip,32);
2537
2538         // set the registration timeout for this user
2539         unsigned long class_regtimeout = 90;
2540         int class_flood = 0;
2541         long class_threshold = 5;
2542         long class_sqmax = 262144;      // 256kb
2543
2544         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2545         {
2546                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2547                 {
2548                         class_regtimeout = (unsigned long)i->registration_timeout;
2549                         class_flood = i->flood;
2550                         clientlist[tempnick]->pingmax = i->pingtime;
2551                         class_threshold = i->threshold;
2552                         class_sqmax = i->sendqmax;
2553                         break;
2554                 }
2555         }
2556
2557         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2558         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2559         clientlist[tempnick]->flood = class_flood;
2560         clientlist[tempnick]->threshold = class_threshold;
2561         clientlist[tempnick]->sendqmax = class_sqmax;
2562
2563         for (int i = 0; i < MAXCHANS; i++)
2564         {
2565                 clientlist[tempnick]->chans[i].channel = NULL;
2566                 clientlist[tempnick]->chans[i].uc_modes = 0;
2567         }
2568
2569         if (clientlist.size() == MAXCLIENTS)
2570         {
2571                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2572                 return;
2573         }
2574
2575         // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
2576         // its a pretty big but for the moment valid assumption:
2577         // file descriptors are handed out starting at 0, and are recycled as theyre freed.
2578         // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
2579         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
2580         // which for the time being is a physical impossibility (even the largest networks dont have more
2581         // than about 10,000 users on ONE server!)
2582         if (socket > 65535)
2583         {
2584                 kill_link(clientlist[tempnick],"Server is full");
2585                 return;
2586         }
2587
2588
2589         char* e = matches_exception(ip);
2590         if (!e)
2591         {
2592                 char* r = matches_zline(ip);
2593                 if (r)
2594                 {
2595                         char reason[MAXBUF];
2596                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2597                         kill_link(clientlist[tempnick],reason);
2598                         return;
2599                 }
2600         }
2601         fd_ref_table[socket] = clientlist[tempnick];
2602
2603 #ifdef USE_KQUEUE
2604         struct kevent ke;
2605         log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);
2606         EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL);
2607         int i = kevent(kq, &ke, 1, 0, 0, NULL);
2608         if (i == -1)
2609         {
2610                 switch (errno)
2611                 {
2612                         case EACCES:
2613                                 log(DEBUG,"kqueue: EACCES");
2614                         break;
2615                         case EFAULT:
2616                                 log(DEBUG,"kqueue: EFAULT");
2617                         break;
2618                         case EBADF:
2619                                 log(DEBUG,"kqueue: EBADF=%d",ke.ident);
2620                         break;
2621                         case EINTR:
2622                                 log(DEBUG,"kqueue: EINTR");
2623                         break;
2624                         case EINVAL:
2625                                 log(DEBUG,"kqueue: EINVAL");
2626                         break;
2627                         case ENOENT:
2628                                 log(DEBUG,"kqueue: ENOENT");
2629                         break;
2630                         case ENOMEM:
2631                                 log(DEBUG,"kqueue: ENOMEM");
2632                         break;
2633                         case ESRCH:
2634                                 log(DEBUG,"kqueue: ESRCH");
2635                         break;
2636                         default:
2637                                 log(DEBUG,"kqueue: UNKNOWN!");
2638                         break;
2639                 }
2640                 log(DEBUG,"kqueue: Failed to add user to queue!");
2641         }
2642
2643 #endif
2644 }
2645
2646 // this function counts all users connected, wether they are registered or NOT.
2647 int usercnt(void)
2648 {
2649         return clientlist.size();
2650 }
2651
2652 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2653 int registered_usercount(void)
2654 {
2655         int c = 0;
2656         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2657         {
2658                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2659         }
2660         return c;
2661 }
2662
2663 int usercount_invisible(void)
2664 {
2665         int c = 0;
2666
2667         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2668         {
2669                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2670         }
2671         return c;
2672 }
2673
2674 int usercount_opers(void)
2675 {
2676         int c = 0;
2677
2678         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2679         {
2680                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2681         }
2682         return c;
2683 }
2684
2685 int usercount_unknown(void)
2686 {
2687         int c = 0;
2688
2689         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2690         {
2691                 if ((i->second->fd) && (i->second->registered != 7))
2692                         c++;
2693         }
2694         return c;
2695 }
2696
2697 long chancount(void)
2698 {
2699         return chanlist.size();
2700 }
2701
2702 long count_servs(void)
2703 {
2704         int c = 0;
2705         for (int i = 0; i < 32; i++)
2706         {
2707                 if (me[i] != NULL)
2708                 {
2709                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2710                         {
2711                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2712                                 {
2713                                         c++;
2714                                 }
2715                         }
2716                 }
2717         }
2718         return c;
2719 }
2720
2721 long servercount(void)
2722 {
2723         return count_servs()+1;
2724 }
2725
2726 long local_count()
2727 {
2728         int c = 0;
2729         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2730         {
2731                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2732         }
2733         return c;
2734 }
2735
2736
2737 void ShowMOTD(userrec *user)
2738 {
2739         char buf[65536];
2740         std::string WholeMOTD = "";
2741         if (!MOTD.size())
2742         {
2743                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2744                 return;
2745         }
2746         snprintf(buf,65535,":%s 375 %s :- %s message of the day\r\n", ServerName, user->nick, ServerName);
2747         WholeMOTD = WholeMOTD + buf;
2748         for (int i = 0; i != MOTD.size(); i++)
2749         {
2750                 snprintf(buf,65535,":%s 372 %s :- %s\r\n", ServerName, user->nick, MOTD[i].c_str());
2751                 WholeMOTD = WholeMOTD + buf;
2752         }
2753         snprintf(buf,65535,":%s 376 %s :End of message of the day.\r\n", ServerName, user->nick);
2754         WholeMOTD = WholeMOTD + buf;
2755         // only one write operation
2756         user->AddWriteBuf(WholeMOTD);
2757         statsSent += WholeMOTD.length();
2758 }
2759
2760 void ShowRULES(userrec *user)
2761 {
2762         if (!RULES.size())
2763         {
2764                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2765                 return;
2766         }
2767         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2768         for (int i = 0; i != RULES.size(); i++)
2769         {
2770                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2771         }
2772         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2773 }
2774
2775 /* shows the message of the day, and any other on-logon stuff */
2776 void FullConnectUser(userrec* user)
2777 {
2778         statsConnects++;
2779         user->idle_lastmsg = TIME;
2780         log(DEBUG,"ConnectUser: %s",user->nick);
2781
2782         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
2783         {
2784                 kill_link(user,"Invalid password");
2785                 return;
2786         }
2787         if (IsDenied(user))
2788         {
2789                 kill_link(user,"Unauthorised connection");
2790                 return;
2791         }
2792
2793         char match_against[MAXBUF];
2794         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2795         char* e = matches_exception(match_against);
2796         if (!e)
2797         {
2798                 char* r = matches_gline(match_against);
2799                 if (r)
2800                 {
2801                         char reason[MAXBUF];
2802                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2803                         kill_link_silent(user,reason);
2804                         return;
2805                 }
2806                 r = matches_kline(user->host);
2807                 if (r)
2808                 {
2809                         char reason[MAXBUF];
2810                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2811                         kill_link_silent(user,reason);
2812                         return;
2813                 }
2814         }
2815
2816         // fix by brain: move this below the xline checks to prevent spurious quits going onto the net that dont belong
2817         user->registered = 7;
2818
2819         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2820         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2821         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2822         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2823         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2824         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2825         std::stringstream v;
2826         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2827         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2828         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2829         v << Network;
2830         std::string data005 = v.str();
2831         FOREACH_MOD On005Numeric(data005);
2832         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2833         // so i'd better split it :)
2834         std::stringstream out(data005);
2835         std::string token = "";
2836         std::string line5 = "";
2837         int token_counter = 0;
2838         while (!out.eof())
2839         {
2840                 out >> token;
2841                 line5 = line5 + token + " ";
2842                 token_counter++;
2843                 if ((token_counter >= 13) || (out.eof() == true))
2844                 {
2845                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2846                         line5 = "";
2847                         token_counter = 0;
2848                 }
2849         }
2850         ShowMOTD(user);
2851
2852         char buffer[MAXBUF];
2853         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);
2854         NetSendToAll(buffer);
2855
2856         // fix by brain: these should be AFTER the N token, so other servers know what the HELL we're on about... :)
2857         FOREACH_MOD OnUserConnect(user);
2858         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
2859 }
2860
2861
2862 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2863 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2864 // registration timeout maximum seconds)
2865 bool AllModulesReportReady(userrec* user)
2866 {
2867         for (int i = 0; i <= MODCOUNT; i++)
2868         {
2869                 int res = modules[i]->OnCheckReady(user);
2870                         if (!res)
2871                                 return false;
2872         }
2873         return true;
2874 }
2875
2876 /* shows the message of the day, and any other on-logon stuff */
2877 void ConnectUser(userrec *user)
2878 {
2879         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2880         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2881         {
2882                 FullConnectUser(user);
2883         }
2884 }
2885
2886 std::string GetVersionString()
2887 {
2888         char Revision[] = "$Revision$";
2889         char versiondata[MAXBUF];
2890         char *s1 = Revision;
2891         char *savept;
2892         char *v2 = strtok_r(s1," ",&savept);
2893         s1 = savept;
2894         v2 = strtok_r(s1," ",&savept);
2895         s1 = savept;
2896 #ifdef USE_KQUEUE
2897         char socketengine[] = "kqueue";
2898 #else
2899         char socketengine[] = "select";
2900 #endif
2901         snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu) [SE=%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,socketengine);
2902         return versiondata;
2903 }
2904
2905 void handle_version(char **parameters, int pcnt, userrec *user)
2906 {
2907         if (!pcnt)
2908         {
2909                 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2910         }
2911         else
2912         {
2913                 if (!strcmp(parameters[0],"*"))
2914                 {
2915                         for (int j = 0; j < 32; j++)
2916                         {
2917                                 if (me[j] != NULL)
2918                                 {
2919                                         for (int x = 0; x < me[j]->connectors.size(); x++)
2920                                         {
2921                                                 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());
2922                                         }
2923                                 }
2924                         }
2925                         return;
2926                 }
2927                 if (match(ServerName,parameters[0]))
2928                 {
2929                         WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2930                         return;
2931                 }
2932                 bool displayed = false, found = false;
2933                 for (int j = 0; j < 32; j++)
2934                 {
2935                         if (me[j] != NULL)
2936                         {
2937                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2938                                 {
2939                                         if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
2940                                         {
2941                                                 found = true;
2942                                                 if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
2943                                                 {
2944                                                         displayed = true;
2945                                                         WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
2946                                                 }
2947                                         }
2948                                 }
2949                         }
2950                 }
2951                 if ((!displayed) && (found))
2952                 {
2953                         WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
2954                         return;
2955                 }
2956                 if (!found)
2957                 {
2958                         WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2959                 }
2960         }
2961         return;
2962 }
2963
2964
2965 // calls a handler function for a command
2966
2967 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2968 {
2969                 for (int i = 0; i < cmdlist.size(); i++)
2970                 {
2971                         if (!strcasecmp(cmdlist[i].command,commandname))
2972                         {
2973                                 if (cmdlist[i].handler_function)
2974                                 {
2975                                         if (pcnt>=cmdlist[i].min_params)
2976                                         {
2977                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2978                                                 {
2979                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2980                                                 }
2981                                         }
2982                                 }
2983                         }
2984                 }
2985 }
2986
2987 void DoSplitEveryone()
2988 {
2989         bool go_again = true;
2990         while (go_again)
2991         {
2992                 go_again = false;
2993                 for (int i = 0; i < 32; i++)
2994                 {
2995                         if (me[i] != NULL)
2996                         {
2997                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2998                                 {
2999                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
3000                                         {
3001                                                 j->routes.clear();
3002                                                 j->CloseConnection();
3003                                                 me[i]->connectors.erase(j);
3004                                                 go_again = true;
3005                                                 break;
3006                                         }
3007                                 }
3008                         }
3009                 }
3010         }
3011         log(DEBUG,"Removed server. Will remove clients...");
3012         // iterate through the userlist and remove all users on this server.
3013         // because we're dealing with a mesh, we dont have to deal with anything
3014         // "down-route" from this server (nice huh)
3015         go_again = true;
3016         char reason[MAXBUF];
3017         while (go_again)
3018         {
3019                 go_again = false;
3020                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3021                 {
3022                         if (strcasecmp(u->second->server,ServerName))
3023                         {
3024                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
3025                                 kill_link(u->second,reason);
3026                                 go_again = true;
3027                                 break;
3028                         }
3029                 }
3030         }
3031 }
3032
3033
3034
3035 char islast(const char* s)
3036 {
3037         char c = '`';
3038         for (int j = 0; j < 32; j++)
3039         {
3040                 if (me[j] != NULL)
3041                 {
3042                         for (int k = 0; k < me[j]->connectors.size(); k++)
3043                         {
3044                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3045                                 {
3046                                         c = '|';
3047                                 }
3048                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3049                                 {
3050                                         c = '`';
3051                                 }
3052                         }
3053                 }
3054         }
3055         return c;
3056 }
3057
3058 long map_count(const char* s)
3059 {
3060         int c = 0;
3061         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3062         {
3063                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
3064         }
3065         return c;
3066 }
3067
3068
3069 void force_nickchange(userrec* user,const char* newnick)
3070 {
3071         char nick[MAXBUF];
3072         int MOD_RESULT = 0;
3073
3074         strcpy(nick,"");
3075
3076         FOREACH_RESULT(OnUserPreNick(user,newnick));
3077         if (MOD_RESULT) {
3078                 statsCollisions++;
3079                 kill_link(user,"Nickname collision");
3080                 return;
3081         }
3082         if (matches_qline(newnick))
3083         {
3084                 statsCollisions++;
3085                 kill_link(user,"Nickname collision");
3086                 return;
3087         }
3088
3089         if (user)
3090         {
3091                 if (newnick)
3092                 {
3093                         strncpy(nick,newnick,MAXBUF);
3094                 }
3095                 if (user->registered == 7)
3096                 {
3097                         char* pars[1];
3098                         pars[0] = nick;
3099                         handle_nick(pars,1,user);
3100                 }
3101         }
3102 }
3103
3104
3105 int process_parameters(char **command_p,char *parameters)
3106 {
3107         int j = 0;
3108         int q = strlen(parameters);
3109         if (!q)
3110         {
3111                 /* no parameters, command_p invalid! */
3112                 return 0;
3113         }
3114         if (parameters[0] == ':')
3115         {
3116                 command_p[0] = parameters+1;
3117                 return 1;
3118         }
3119         if (q)
3120         {
3121                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
3122                 {
3123                         /* only one parameter */
3124                         command_p[0] = parameters;
3125                         if (parameters[0] == ':')
3126                         {
3127                                 if (strchr(parameters,' ') != NULL)
3128                                 {
3129                                         command_p[0]++;
3130                                 }
3131                         }
3132                         return 1;
3133                 }
3134         }
3135         command_p[j++] = parameters;
3136         for (int i = 0; i <= q; i++)
3137         {
3138                 if (parameters[i] == ' ')
3139                 {
3140                         command_p[j++] = parameters+i+1;
3141                         parameters[i] = '\0';
3142                         if (command_p[j-1][0] == ':')
3143                         {
3144                                 *command_p[j-1]++; /* remove dodgy ":" */
3145                                 break;
3146                                 /* parameter like this marks end of the sequence */
3147                         }
3148                 }
3149         }
3150         return j; /* returns total number of items in the list */
3151 }
3152
3153 void process_command(userrec *user, char* cmd)
3154 {
3155         char *parameters;
3156         char *command;
3157         char *command_p[127];
3158         char p[MAXBUF], temp[MAXBUF];
3159         int j, items, cmd_found;
3160
3161         for (int i = 0; i < 127; i++)
3162                 command_p[i] = NULL;
3163
3164         if (!user)
3165         {
3166                 return;
3167         }
3168         if (!cmd)
3169         {
3170                 return;
3171         }
3172         if (!cmd[0])
3173         {
3174                 return;
3175         }
3176
3177         int total_params = 0;
3178         if (strlen(cmd)>2)
3179         {
3180                 for (int q = 0; q < strlen(cmd)-1; q++)
3181                 {
3182                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
3183                         {
3184                                 total_params++;
3185                                 // found a 'trailing', we dont count them after this.
3186                                 break;
3187                         }
3188                         if (cmd[q] == ' ')
3189                                 total_params++;
3190                 }
3191         }
3192
3193         // another phidjit bug...
3194         if (total_params > 126)
3195         {
3196                 *(strchr(cmd,' ')) = '\0';
3197                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
3198                 return;
3199         }
3200
3201         strlcpy(temp,cmd,MAXBUF);
3202
3203         std::string tmp = cmd;
3204         for (int i = 0; i <= MODCOUNT; i++)
3205         {
3206                 std::string oldtmp = tmp;
3207                 modules[i]->OnServerRaw(tmp,true,user);
3208                 if (oldtmp != tmp)
3209                 {
3210                         log(DEBUG,"A Module changed the input string!");
3211                         log(DEBUG,"New string: %s",tmp.c_str());
3212                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3213                         break;
3214                 }
3215         }
3216         strlcpy(cmd,tmp.c_str(),MAXBUF);
3217         strlcpy(temp,cmd,MAXBUF);
3218
3219         if (!strchr(cmd,' '))
3220         {
3221                 /* no parameters, lets skip the formalities and not chop up
3222                  * the string */
3223                 log(DEBUG,"About to preprocess command with no params");
3224                 items = 0;
3225                 command_p[0] = NULL;
3226                 parameters = NULL;
3227                 for (int i = 0; i <= strlen(cmd); i++)
3228                 {
3229                         cmd[i] = toupper(cmd[i]);
3230                 }
3231                 command = cmd;
3232         }
3233         else
3234         {
3235                 strcpy(cmd,"");
3236                 j = 0;
3237                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3238                 for (int i = 0; i < strlen(temp); i++)
3239                 {
3240                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3241                         {
3242                                 cmd[j++] = temp[i];
3243                                 cmd[j] = 0;
3244                         }
3245                 }
3246                 /* split the full string into a command plus parameters */
3247                 parameters = p;
3248                 strcpy(p," ");
3249                 command = cmd;
3250                 if (strchr(cmd,' '))
3251                 {
3252                         for (int i = 0; i <= strlen(cmd); i++)
3253                         {
3254                                 /* capitalise the command ONLY, leave params intact */
3255                                 cmd[i] = toupper(cmd[i]);
3256                                 /* are we nearly there yet?! :P */
3257                                 if (cmd[i] == ' ')
3258                                 {
3259                                         command = cmd;
3260                                         parameters = cmd+i+1;
3261                                         cmd[i] = '\0';
3262                                         break;
3263                                 }
3264                         }
3265                 }
3266                 else
3267                 {
3268                         for (int i = 0; i <= strlen(cmd); i++)
3269                         {
3270                                 cmd[i] = toupper(cmd[i]);
3271                         }
3272                 }
3273
3274         }
3275         cmd_found = 0;
3276
3277         if (strlen(command)>MAXCOMMAND)
3278         {
3279                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3280                 return;
3281         }
3282
3283         for (int x = 0; x < strlen(command); x++)
3284         {
3285                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3286                 {
3287                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3288                         {
3289                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3290                                 {
3291                                         statsUnknown++;
3292                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3293                                         return;
3294                                 }
3295                         }
3296                 }
3297         }
3298
3299         for (int i = 0; i != cmdlist.size(); i++)
3300         {
3301                 if (cmdlist[i].command[0])
3302                 {
3303                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3304                         {
3305                                 if (parameters)
3306                                 {
3307                                         if (parameters[0])
3308                                         {
3309                                                 items = process_parameters(command_p,parameters);
3310                                         }
3311                                         else
3312                                         {
3313                                                 items = 0;
3314                                                 command_p[0] = NULL;
3315                                         }
3316                                 }
3317                                 else
3318                                 {
3319                                         items = 0;
3320                                         command_p[0] = NULL;
3321                                 }
3322
3323                                 if (user)
3324                                 {
3325                                         /* activity resets the ping pending timer */
3326                                         user->nping = TIME + user->pingmax;
3327                                         if ((items) < cmdlist[i].min_params)
3328                                         {
3329                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3330                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3331                                                 return;
3332                                         }
3333                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3334                                         {
3335                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3336                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3337                                                 cmd_found = 1;
3338                                                 return;
3339                                         }
3340                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3341                                         {
3342                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3343                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3344                                                 cmd_found = 1;
3345                                                 return;
3346                                         }
3347                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3348                                          * deny command! */
3349                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3350                                         {
3351                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3352                                                 {
3353                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3354                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3355                                                         return;
3356                                                 }
3357                                         }
3358                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3359                                         {
3360                                                 char* mycmd;
3361                                                 char* savept2;
3362                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3363                                                 while (mycmd)
3364                                                 {
3365                                                         if (!strcasecmp(mycmd,command))
3366                                                         {
3367                                                                 // command is disabled!
3368                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3369                                                                 return;
3370                                                         }
3371                                                         mycmd = strtok_r(NULL," ",&savept2);
3372                                                 }
3373
3374
3375                                         }
3376                                         if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
3377                                         {
3378                                                 if (cmdlist[i].handler_function)
3379                                                 {
3380
3381                                                         /* ikky /stats counters */
3382                                                         if (temp)
3383                                                         {
3384                                                                 cmdlist[i].use_count++;
3385                                                                 cmdlist[i].total_bytes+=strlen(temp);
3386                                                         }
3387
3388                                                         int MOD_RESULT = 0;
3389                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3390                                                         if (MOD_RESULT == 1) {
3391                                                                 return;
3392                                                         }
3393
3394                                                         /* WARNING: nothing may come after the
3395                                                          * command handler call, as the handler
3396                                                          * may free the user structure! */
3397
3398                                                         cmdlist[i].handler_function(command_p,items,user);
3399                                                 }
3400                                                 return;
3401                                         }
3402                                         else
3403                                         {
3404                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3405                                                 return;
3406                                         }
3407                                 }
3408                                 cmd_found = 1;
3409                         }
3410                 }
3411         }
3412         if ((!cmd_found) && (user))
3413         {
3414                 statsUnknown++;
3415                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3416         }
3417 }
3418
3419
3420 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3421 {
3422         command_t comm;
3423         /* create the command and push it onto the table */
3424         strlcpy(comm.command,cmd,MAXBUF);
3425         strlcpy(comm.source,source,MAXBUF);
3426         comm.handler_function = f;
3427         comm.flags_needed = flags;
3428         comm.min_params = minparams;
3429         comm.use_count = 0;
3430         comm.total_bytes = 0;
3431         cmdlist.push_back(comm);
3432         log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
3433 }
3434
3435 bool removecommands(const char* source)
3436 {
3437         bool go_again = true;
3438         while (go_again)
3439         {
3440                 go_again = false;
3441                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3442                 {
3443                         if (!strcmp(i->source,source))
3444                         {
3445                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3446                                 cmdlist.erase(i);
3447                                 go_again = true;
3448                                 break;
3449                         }
3450                 }
3451         }
3452         return true;
3453 }
3454
3455 void SetupCommandTable(void)
3456 {
3457         createcommand("USER",handle_user,0,4,"<core>");
3458         createcommand("NICK",handle_nick,0,1,"<core>");
3459         createcommand("QUIT",handle_quit,0,0,"<core>");
3460         createcommand("VERSION",handle_version,0,0,"<core>");
3461         createcommand("PING",handle_ping,0,1,"<core>");
3462         createcommand("PONG",handle_pong,0,1,"<core>");
3463         createcommand("ADMIN",handle_admin,0,0,"<core>");
3464         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3465         createcommand("INFO",handle_info,0,0,"<core>");
3466         createcommand("TIME",handle_time,0,0,"<core>");
3467         createcommand("WHOIS",handle_whois,0,1,"<core>");
3468         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3469         createcommand("NOTICE",handle_notice,0,2,"<core>");
3470         createcommand("JOIN",handle_join,0,1,"<core>");
3471         createcommand("NAMES",handle_names,0,0,"<core>");
3472         createcommand("PART",handle_part,0,1,"<core>");
3473         createcommand("KICK",handle_kick,0,2,"<core>");
3474         createcommand("MODE",handle_mode,0,1,"<core>");
3475         createcommand("TOPIC",handle_topic,0,1,"<core>");
3476         createcommand("WHO",handle_who,0,1,"<core>");
3477         createcommand("MOTD",handle_motd,0,0,"<core>");
3478         createcommand("RULES",handle_rules,0,0,"<core>");
3479         createcommand("OPER",handle_oper,0,2,"<core>");
3480         createcommand("LIST",handle_list,0,0,"<core>");
3481         createcommand("DIE",handle_die,'o',1,"<core>");
3482         createcommand("RESTART",handle_restart,'o',1,"<core>");
3483         createcommand("KILL",handle_kill,'o',2,"<core>");
3484         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3485         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3486         createcommand("STATS",handle_stats,0,1,"<core>");
3487         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3488         createcommand("AWAY",handle_away,0,0,"<core>");
3489         createcommand("ISON",handle_ison,0,0,"<core>");
3490         createcommand("SUMMON",handle_summon,0,0,"<core>");
3491         createcommand("USERS",handle_users,0,0,"<core>");
3492         createcommand("INVITE",handle_invite,0,2,"<core>");
3493         createcommand("PASS",handle_pass,0,1,"<core>");
3494         createcommand("TRACE",handle_trace,'o',0,"<core>");
3495         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3496         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3497         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3498         createcommand("MODULES",handle_modules,0,0,"<core>");
3499         createcommand("LINKS",handle_links,0,0,"<core>");
3500         createcommand("MAP",handle_map,0,0,"<core>");
3501         createcommand("KLINE",handle_kline,'o',1,"<core>");
3502         createcommand("GLINE",handle_gline,'o',1,"<core>");
3503         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3504         createcommand("QLINE",handle_qline,'o',1,"<core>");
3505         createcommand("ELINE",handle_eline,'o',1,"<core>");
3506         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3507         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3508         createcommand("SERVER",handle_server,0,0,"<core>");
3509 }
3510
3511 void process_buffer(const char* cmdbuf,userrec *user)
3512 {
3513         if (!user)
3514         {
3515                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3516                 return;
3517         }
3518         char cmd[MAXBUF];
3519         if (!cmdbuf)
3520         {
3521                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3522                 return;
3523         }
3524         if (!cmdbuf[0])
3525         {
3526                 return;
3527         }
3528         while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
3529
3530         strlcpy(cmd,cmdbuf,MAXBUF);
3531         if (!cmd[0])
3532         {
3533                 return;
3534         }
3535         int sl = strlen(cmd)-1;
3536         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3537         {
3538                 cmd[sl] = '\0';
3539         }
3540         sl = strlen(cmd)-1;
3541         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3542         {
3543                 cmd[sl] = '\0';
3544         }
3545         sl = strlen(cmd)-1;
3546         while (cmd[sl] == ' ') // strip trailing spaces
3547         {
3548                 cmd[sl] = '\0';
3549                 sl = strlen(cmd)-1;
3550         }
3551
3552         if (!cmd[0])
3553         {
3554                 return;
3555         }
3556         log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
3557         tidystring(cmd);
3558         if ((user) && (cmd))
3559         {
3560                 process_command(user,cmd);
3561         }
3562 }
3563
3564 void DoSync(serverrec* serv, char* tcp_host)
3565 {
3566         char data[MAXBUF];
3567         log(DEBUG,"Sending sync");
3568         // send start of sync marker: Y <timestamp>
3569         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3570         // except the ones its receiving it from.
3571         snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
3572         serv->SendPacket(data,tcp_host);
3573         // send users and channels
3574
3575         NetSendMyRoutingTable();
3576
3577         // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
3578         for (int j = 0; j < 32; j++)
3579         {
3580                 if (me[j] != NULL)
3581                 {
3582                         for (int k = 0; k < me[j]->connectors.size(); k++)
3583                         {
3584                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3585                                 {
3586                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3587                                         serv->SendPacket(data,tcp_host);
3588                                 }
3589                         }
3590                 }
3591         }
3592
3593         // send our version for the remote side to cache
3594         snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
3595         serv->SendPacket(data,tcp_host);
3596
3597         // sync the users and channels, give the modules a look-in.
3598         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3599         {
3600                 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);
3601                 serv->SendPacket(data,tcp_host);
3602                 if (strchr(u->second->modes,'o'))
3603                 {
3604                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3605                         serv->SendPacket(data,tcp_host);
3606                 }
3607                 for (int i = 0; i <= MODCOUNT; i++)
3608                 {
3609                         string_list l = modules[i]->OnUserSync(u->second);
3610                         for (int j = 0; j < l.size(); j++)
3611                         {
3612                                 strlcpy(data,l[j].c_str(),MAXBUF);
3613                                 serv->SendPacket(data,tcp_host);
3614                         }
3615                 }
3616                 char* chl = chlist(u->second,u->second);
3617                 if (strcmp(chl,""))
3618                 {
3619                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
3620                         serv->SendPacket(data,tcp_host);
3621                 }
3622         }
3623         // send channel modes, topics etc...
3624         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3625         {
3626                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3627                 serv->SendPacket(data,tcp_host);
3628                 for (int i = 0; i <= MODCOUNT; i++)
3629                 {
3630                         string_list l = modules[i]->OnChannelSync(c->second);
3631                         for (int j = 0; j < l.size(); j++)
3632                         {
3633                                 strlcpy(data,l[j].c_str(),MAXBUF);
3634                                 serv->SendPacket(data,tcp_host);
3635                         }
3636                 }
3637                 if (c->second->topic[0])
3638                 {
3639                         snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3640                         serv->SendPacket(data,tcp_host);
3641                 }
3642                 // send current banlist
3643
3644                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3645                 {
3646                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3647                         serv->SendPacket(data,tcp_host);
3648                 }
3649         }
3650         // sync global zlines, glines, etc
3651         sync_xlines(serv,tcp_host);
3652
3653         snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
3654         serv->SendPacket(data,tcp_host);
3655         log(DEBUG,"Sent sync");
3656         // ircd sends its serverlist after the end of sync here
3657 }
3658
3659
3660 void NetSendMyRoutingTable()
3661 {
3662         // send out a line saying what is reachable to us.
3663         // E.g. if A is linked to B C and D, send out:
3664         // $ A B C D
3665         // if its only linked to B and D send out:
3666         // $ A B D
3667         // if it has no links, dont even send out the line at all.
3668         char buffer[MAXBUF];
3669         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3670         bool sendit = false;
3671         for (int i = 0; i < 32; i++)
3672         {
3673                 if (me[i] != NULL)
3674                 {
3675                         for (int j = 0; j < me[i]->connectors.size(); j++)
3676                         {
3677                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3678                                 {
3679                                         strlcat(buffer," ",MAXBUF);
3680                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3681                                         sendit = true;
3682                                 }
3683                         }
3684                 }
3685         }
3686         if (sendit)
3687                 NetSendToAll(buffer);
3688 }
3689
3690
3691 void DoSplit(const char* params)
3692 {
3693         bool go_again = true;
3694         while (go_again)
3695         {
3696                 go_again = false;
3697                 for (int i = 0; i < 32; i++)
3698                 {
3699                         if (me[i] != NULL)
3700                         {
3701                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3702                                 {
3703                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3704                                         {
3705                                                 j->routes.clear();
3706                                                 j->CloseConnection();
3707                                                 me[i]->connectors.erase(j);
3708                                                 go_again = true;
3709                                                 break;
3710                                         }
3711                                 }
3712                         }
3713                 }
3714         }
3715         log(DEBUG,"Removed server. Will remove clients...");
3716         // iterate through the userlist and remove all users on this server.
3717         // because we're dealing with a mesh, we dont have to deal with anything
3718         // "down-route" from this server (nice huh)
3719         go_again = true;
3720         char reason[MAXBUF];
3721         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3722         while (go_again)
3723         {
3724                 go_again = false;
3725                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3726                 {
3727                         if (!strcasecmp(u->second->server,params))
3728                         {
3729                                 kill_link(u->second,reason);
3730                                 go_again = true;
3731                                 break;
3732                         }
3733                 }
3734         }
3735 }
3736
3737 // removes a server. Will NOT remove its users!
3738
3739 void RemoveServer(const char* name)
3740 {
3741         bool go_again = true;
3742         while (go_again)
3743         {
3744                 go_again = false;
3745                 for (int i = 0; i < 32; i++)
3746                 {
3747                         if (me[i] != NULL)
3748                         {
3749                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3750                                 {
3751                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3752                                         {
3753                                                 j->routes.clear();
3754                                                 j->CloseConnection();
3755                                                 me[i]->connectors.erase(j);
3756                                                 go_again = true;
3757                                                 break;
3758                                         }
3759                                 }
3760                         }
3761                 }
3762         }
3763 }
3764
3765
3766 char MODERR[MAXBUF];
3767
3768 char* ModuleError()
3769 {
3770         return MODERR;
3771 }
3772
3773 void erase_factory(int j)
3774 {
3775         int v = 0;
3776         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3777         {
3778                 if (v == j)
3779                 {
3780                         factory.erase(t);
3781                         factory.push_back(NULL);
3782                         return;
3783                 }
3784                 v++;
3785         }
3786 }
3787
3788 void erase_module(int j)
3789 {
3790         int v1 = 0;
3791         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3792         {
3793                 if (v1 == j)
3794                 {
3795                         delete *m;
3796                         modules.erase(m);
3797                         modules.push_back(NULL);
3798                         break;
3799                 }
3800                 v1++;
3801         }
3802         int v2 = 0;
3803         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3804         {
3805                 if (v2 == j)
3806                 {
3807                        module_names.erase(v);
3808                        break;
3809                 }
3810                 v2++;
3811         }
3812
3813 }
3814
3815 bool UnloadModule(const char* filename)
3816 {
3817         std::string filename_str = filename;
3818         for (int j = 0; j != module_names.size(); j++)
3819         {
3820                 if (module_names[j] == filename_str)
3821                 {
3822                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3823                         {
3824                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3825                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3826                                 return false;
3827                         }
3828                         // found the module
3829                         log(DEBUG,"Deleting module...");
3830                         erase_module(j);
3831                         log(DEBUG,"Erasing module entry...");
3832                         erase_factory(j);
3833                         log(DEBUG,"Removing dependent commands...");
3834                         removecommands(filename);
3835                         log(DEFAULT,"Module %s unloaded",filename);
3836                         MODCOUNT--;
3837                         return true;
3838                 }
3839         }
3840         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3841         snprintf(MODERR,MAXBUF,"Module not loaded");
3842         return false;
3843 }
3844
3845 bool DirValid(char* dirandfile)
3846 {
3847         char work[MAXBUF];
3848         strlcpy(work,dirandfile,MAXBUF);
3849         int p = strlen(work);
3850         // we just want the dir
3851         while (strlen(work))
3852         {
3853                 if (work[p] == '/')
3854                 {
3855                         work[p] = '\0';
3856                         break;
3857                 }
3858                 work[p--] = '\0';
3859         }
3860         char buffer[MAXBUF], otherdir[MAXBUF];
3861         // Get the current working directory
3862         if( getcwd( buffer, MAXBUF ) == NULL )
3863                 return false;
3864         chdir(work);
3865         if( getcwd( otherdir, MAXBUF ) == NULL )
3866                 return false;
3867         chdir(buffer);
3868         if (strlen(otherdir) >= strlen(work))
3869         {
3870                 otherdir[strlen(work)] = '\0';
3871                 if (!strcmp(otherdir,work))
3872                 {
3873                         return true;
3874                 }
3875                 return false;
3876         }
3877         else return false;
3878 }
3879
3880 std::string GetFullProgDir(char** argv, int argc)
3881 {
3882         char work[MAXBUF];
3883         strlcpy(work,argv[0],MAXBUF);
3884         int p = strlen(work);
3885         // we just want the dir
3886         while (strlen(work))
3887         {
3888                 if (work[p] == '/')
3889                 {
3890                         work[p] = '\0';
3891                         break;
3892                 }
3893                 work[p--] = '\0';
3894         }
3895         char buffer[MAXBUF], otherdir[MAXBUF];
3896         // Get the current working directory
3897         if( getcwd( buffer, MAXBUF ) == NULL )
3898                 return "";
3899         chdir(work);
3900         if( getcwd( otherdir, MAXBUF ) == NULL )
3901                 return "";
3902         chdir(buffer);
3903         return otherdir;
3904 }
3905
3906 bool LoadModule(const char* filename)
3907 {
3908         char modfile[MAXBUF];
3909         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3910         std::string filename_str = filename;
3911         if (!DirValid(modfile))
3912         {
3913                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3914                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3915                 return false;
3916         }
3917         log(DEBUG,"Loading module: %s",modfile);
3918         if (FileExists(modfile))
3919         {
3920                 for (int j = 0; j < module_names.size(); j++)
3921                 {
3922                         if (module_names[j] == filename_str)
3923                         {
3924                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3925                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3926                                 return false;
3927                         }
3928                 }
3929                 ircd_module* a = new ircd_module(modfile);
3930                 factory[MODCOUNT+1] = a;
3931                 if (factory[MODCOUNT+1]->LastError())
3932                 {
3933                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3934                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3935                         MODCOUNT--;
3936                         return false;
3937                 }
3938                 if (factory[MODCOUNT+1]->factory)
3939                 {
3940                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3941                         modules[MODCOUNT+1] = m;
3942                         /* save the module and the module's classfactory, if
3943                          * this isnt done, random crashes can occur :/ */
3944                         module_names.push_back(filename);
3945                 }
3946                 else
3947                 {
3948                         log(DEFAULT,"Unable to load %s",modfile);
3949                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3950                         return false;
3951                 }
3952         }
3953         else
3954         {
3955                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3956                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3957                 return false;
3958         }
3959         MODCOUNT++;
3960         return true;
3961 }
3962
3963 int InspIRCd(char** argv, int argc)
3964 {
3965         struct sockaddr_in client,server;
3966         char addrs[MAXBUF][255];
3967         int incomingSockfd, result = TRUE;
3968         socklen_t length;
3969         int count = 0;
3970         int selectResult = 0, selectResult2 = 0;
3971         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3972         fd_set selectFds;
3973         timeval tv;
3974
3975         std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
3976         log_file = fopen(logpath.c_str(),"a+");
3977         if (!log_file)
3978         {
3979                 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
3980                 Exit(ERROR);
3981         }
3982         printf("Logging to %s...\n",logpath.c_str());
3983
3984         log(DEFAULT,"$Id$");
3985         if (geteuid() == 0)
3986         {
3987                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3988                 Exit(ERROR);
3989                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3990         }
3991         SetupCommandTable();
3992         log(DEBUG,"InspIRCd: startup: default command table set up");
3993
3994         ReadConfig(true,NULL);
3995         if (DieValue[0])
3996         {
3997                 printf("WARNING: %s\n\n",DieValue);
3998                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3999                 exit(0);
4000         }
4001         log(DEBUG,"InspIRCd: startup: read config");
4002
4003         int clientportcount = 0, serverportcount = 0;
4004
4005         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
4006         {
4007                 ConfValue("bind","port",count,configToken,&config_f);
4008                 ConfValue("bind","address",count,Addr,&config_f);
4009                 ConfValue("bind","type",count,Type,&config_f);
4010                 if (!strcmp(Type,"servers"))
4011                 {
4012                         char Default[MAXBUF];
4013                         strcpy(Default,"no");
4014                         ConfValue("bind","default",count,Default,&config_f);
4015                         if (strchr(Default,'y'))
4016                         {
4017                                 defaultRoute = serverportcount;
4018                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
4019                         }
4020                         me[serverportcount] = new serverrec(ServerName,100L,false);
4021                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
4022                         {
4023                                 log(DEFAULT,"Warning: Failed to bind port %lu",(unsigned long)atoi(configToken));
4024                                 printf("Warning: Failed to bind port %lu\n",(unsigned long)atoi(configToken));
4025                         }
4026                         else
4027                         {
4028                                 serverportcount++;
4029                         }
4030                 }
4031                 else
4032                 {
4033                         ports[clientportcount] = atoi(configToken);
4034                         strlcpy(addrs[clientportcount],Addr,256);
4035                         clientportcount++;
4036                 }
4037                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
4038         }
4039         portCount = clientportcount;
4040         SERVERportCount = serverportcount;
4041
4042         log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)SERVERportCount);
4043         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
4044
4045         printf("\n");
4046
4047         /* BugFix By Craig! :p */
4048         MODCOUNT = -1;
4049         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
4050         {
4051                 ConfValue("module","name",count,configToken,&config_f);
4052                 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
4053                 if (!LoadModule(configToken))
4054                 {
4055                         log(DEFAULT,"Exiting due to a module loader error.");
4056                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
4057                         Exit(0);
4058                 }
4059         }
4060         log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
4061
4062         startup_time = time(NULL);
4063
4064         char PID[MAXBUF];
4065         ConfValue("pid","file",0,PID,&config_f);
4066         // write once here, to try it out and make sure its ok
4067         WritePID(PID);
4068
4069         /* setup select call */
4070 #ifndef USE_KQUEUE
4071         FD_ZERO(&selectFds);
4072 #endif
4073         log(DEBUG,"InspIRCd: startup: zero selects");
4074         log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
4075
4076         for (count = 0; count < portCount; count++)
4077         {
4078                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
4079                 {
4080                         log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
4081                         return(ERROR);
4082                 }
4083                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
4084                 {
4085                         log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
4086                 }
4087                 else    /* well we at least bound to one socket so we'll continue */
4088                 {
4089                         boundPortCount++;
4090                 }
4091         }
4092
4093         log(DEBUG,"InspIRCd: startup: total bound ports %lu",(unsigned long)boundPortCount);
4094
4095         /* if we didn't bind to anything then abort */
4096         if (boundPortCount == 0)
4097         {
4098                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
4099                 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
4100                 return (ERROR);
4101         }
4102
4103
4104         printf("\nInspIRCd is now running!\n");
4105
4106         if (nofork)
4107         {
4108                 log(VERBOSE,"Not forking as -nofork was specified");
4109         }
4110         else
4111         {
4112                 if (DaemonSeed() == ERROR)
4113                 {
4114                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
4115                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
4116                         Exit(ERROR);
4117                 }
4118         }
4119
4120         // BUGFIX: We cannot initialize this before forking, as the kqueue data is not inherited by child processes!
4121 #ifdef USE_KQUEUE
4122         kq = kqueue();
4123         lkq = kqueue();
4124         skq = kqueue();
4125         if ((kq == -1) || (lkq == -1) || (skq == -1))
4126         {
4127                 log(DEFAULT,"main: kqueue() failed!");
4128                 printf("ERROR: could not initialise kqueue event system. Shutting down.\n");
4129                 Exit(ERROR);
4130         }
4131 #endif
4132
4133
4134 #ifdef USE_KQUEUE
4135         log(DEFAULT,"kqueue socket engine is enabled. Filling listen list.");
4136         for (count = 0; count < boundPortCount; count++)
4137         {
4138                 struct kevent ke;
4139                 log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]);
4140                 EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, 5, NULL);
4141                 int i = kevent(lkq, &ke, 1, 0, 0, NULL);
4142                 if (i == -1)
4143                 {
4144                         log(DEFAULT,"main: add listen ports to kqueue failed!");
4145                         printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n");
4146                 }
4147         }
4148         for (int t = 0; t != SERVERportCount; t++)
4149         {
4150                 struct kevent ke;
4151                 if (me[t])
4152                 {
4153                         log(DEBUG,"kqueue: Add listening SERVER socket to events, kq=%d socket=%d",skq,me[t]->fd);
4154                         EV_SET(&ke, me[t]->fd, EVFILT_READ, EV_ADD, 0, 5, NULL);
4155                         int i = kevent(skq, &ke, 1, 0, 0, NULL);
4156                         if (i == -1)
4157                         {
4158                                 log(DEFAULT,"main: add server listen ports to kqueue failed!");
4159                                 printf("ERROR: could not initialise listening server sockets in kqueue. Shutting down.\n");
4160                         }
4161                 }
4162         }
4163
4164
4165 #else
4166         log(DEFAULT,"Using standard select socket engine.");
4167 #endif
4168
4169         WritePID(PID);
4170
4171         length = sizeof (client);
4172         char tcp_msg[MAXBUF],tcp_host[MAXBUF];
4173
4174 #ifdef USE_KQUEUE
4175         struct kevent ke;
4176         struct kevent ke_list[33];
4177         struct timespec ts;
4178 #endif
4179         fd_set serverfds;
4180         timeval tvs;
4181         tvs.tv_usec = 10000L;
4182         tvs.tv_sec = 0;
4183         tv.tv_sec = 0;
4184         tv.tv_usec = 10000L;
4185         char data[65536];
4186         timeval tval;
4187         fd_set sfd;
4188         tval.tv_usec = 10000L;
4189         tval.tv_sec = 0;
4190         int total_in_this_set = 0;
4191         int i = 0, v = 0, j = 0, cycle_iter = 0;
4192         bool expire_run = false;
4193
4194         /* main loop, this never returns */
4195         for (;;)
4196         {
4197 #ifdef _POSIX_PRIORITY_SCHEDULING
4198                 sched_yield();
4199 #endif
4200 #ifndef USE_KQUEUE
4201                 FD_ZERO(&sfd);
4202 #endif
4203
4204                 // we only read time() once per iteration rather than tons of times!
4205                 OLDTIME = TIME;
4206                 TIME = time(NULL);
4207
4208                 dns_poll();
4209
4210                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
4211                 // them in a list, then reap the list every second or so.
4212                 if (((TIME % 5) == 0) && (!expire_run))
4213                 {
4214                         expire_lines();
4215                         FOREACH_MOD OnBackgroundTimer(TIME);
4216                         expire_run = true;
4217                         continue;
4218                 }
4219                 if ((TIME % 5) == 1)
4220                         expire_run = false;
4221
4222                 // fix by brain - this must be below any manipulation of the hashmap by modules
4223                 user_hash::iterator count2 = clientlist.begin();
4224
4225 #ifdef USE_KQUEUE
4226                 ts.tv_sec = 0;
4227                 ts.tv_nsec = 30000L;
4228                 i = kevent(skq, NULL, 0, &ke, 1, &ts);
4229                 if (i > 0)
4230                 {
4231                         log(DEBUG,"kqueue: Listening server socket event, i=%d, ke.ident=%d",i,ke.ident);
4232                         for (int x = 0; x != SERVERportCount; x++)
4233                         {
4234                                 if ((me[x]) && (ke.ident == me[x]->fd))
4235                                 {
4236
4237 #else
4238                 FD_ZERO(&serverfds);
4239                 for (int x = 0; x != SERVERportCount; x++)
4240                 {
4241                         if (me[x])
4242                                 FD_SET(me[x]->fd, &serverfds);
4243                 }
4244                 tvs.tv_usec = 30000L;
4245                 tvs.tv_sec = 0;
4246                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
4247                 if (servresult > 0)
4248                 {
4249                         for (int x = 0; x != SERVERportCount; x++)
4250                         {
4251                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
4252                                 {
4253 #endif
4254                                         char remotehost[MAXBUF],resolved[MAXBUF];
4255                                         length = sizeof (client);
4256                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
4257                                         if (incomingSockfd != -1)
4258                                         {
4259                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
4260                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
4261                                                 {
4262                                                         strlcpy(resolved,remotehost,MAXBUF);
4263                                                 }
4264                                                 // add to this connections ircd_connector vector
4265                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
4266                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
4267                                         }
4268                                 }
4269                         }
4270                 }
4271
4272                 for (int x = 0; x < SERVERportCount; x++)
4273                 {
4274                         std::deque<std::string> msgs;
4275                         msgs.clear();
4276                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
4277                         {
4278                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
4279                                 {
4280                                         strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
4281                                         log(DEBUG,"Processing: %s",tcp_msg);
4282                                         if (!tcp_msg[0])
4283                                         {
4284                                                 log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
4285                                                 break;
4286                                         }
4287                                         // during a netburst, send all data to all other linked servers
4288                                         if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
4289                                         {
4290                                                 if (is_uline(tcp_host))
4291                                                 {
4292                                                         if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
4293                                                         {
4294                                                                 NetSendToAllExcept(tcp_host,tcp_msg);
4295                                                         }
4296                                                 }
4297                                                 else
4298                                                         NetSendToAllExcept(tcp_host,tcp_msg);
4299                                         }
4300                                         std::string msg = tcp_msg;
4301                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4302                                         strlcpy(tcp_msg,msg.c_str(),MAXBUF);
4303                                         handle_link_packet(tcp_msg, tcp_host, me[x]);
4304                                 }
4305                                 goto label;
4306                         }
4307                 }
4308
4309         while (count2 != clientlist.end())
4310         {
4311 #ifndef USE_KQUEUE
4312                 FD_ZERO(&sfd);
4313 #endif
4314
4315                 total_in_this_set = 0;
4316
4317                 user_hash::iterator xcount = count2;
4318                 user_hash::iterator endingiter = count2;
4319
4320                 if (count2 == clientlist.end()) break;
4321
4322                 userrec* curr = NULL;
4323
4324                 if (count2->second)
4325                         curr = count2->second;
4326
4327                 if ((curr) && (curr->fd != 0))
4328                 {
4329 #ifdef _POSIX_PRIORITY_SCHEDULING
4330         sched_yield();
4331 #endif
4332                         // assemble up to 64 sockets into an fd_set
4333                         // to implement a pooling mechanism.
4334                         //
4335                         // This should be up to 64x faster than the
4336                         // old implementation.
4337 #ifndef USE_KQUEUE
4338                         while (total_in_this_set < 1024)
4339                         {
4340                                 if (count2 != clientlist.end())
4341                                 {
4342                                         curr = count2->second;
4343                                         // we don't check the state of remote users.
4344                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4345                                         {
4346                                                 curr->FlushWriteBuf();
4347                                                 if (curr->GetWriteError() != "")
4348                                                 {
4349                                                         log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
4350                                                         kill_link(curr,curr->GetWriteError().c_str());
4351                                                         goto label;
4352                                                 }
4353
4354                                                 FD_SET (curr->fd, &sfd);
4355
4356                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4357                                                 // their connection class.
4358                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4359                                                 {
4360                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4361                                                         kill_link(curr,"Registration timeout");
4362                                                         goto label;
4363                                                 }
4364                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4365                                                 {
4366                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4367                                                         curr->dns_done = true;
4368                                                         statsDnsBad++;
4369                                                         FullConnectUser(curr);
4370                                                         goto label;
4371                                                 }
4372                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) // both NICK and USER... and DNS
4373                                                 {
4374                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4375                                                         FullConnectUser(curr);
4376                                                         goto label;
4377                                                 }
4378                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4379                                                 {
4380                                                         if ((!curr->lastping) && (curr->registered == 7))
4381                                                         {
4382                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4383                                                                 kill_link(curr,"Ping timeout");
4384                                                                 goto label;
4385                                                         }
4386                                                         Write(curr->fd,"PING :%s",ServerName);
4387                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4388                                                         curr->lastping = 0;
4389                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4390                                                 }
4391                                         }
4392                                         count2++;
4393                                         total_in_this_set++;
4394                                 }
4395                                 else break;
4396                         }
4397                         endingiter = count2;
4398                         count2 = xcount; // roll back to where we were
4399 #else
4400                         // 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.
4401                         // TODO: We dont need to do all this EVERY loop iteration, tone down the visits to this if we're using kqueue.
4402                         cycle_iter++;
4403                         if (cycle_iter > 10) while (count2 != clientlist.end())
4404                         {
4405                                 cycle_iter = 0;
4406                                 if (count2 != clientlist.end())
4407                                 {
4408                                         curr = count2->second;
4409                                         // we don't check the state of remote users.
4410                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4411                                         {
4412
4413                                                 curr->FlushWriteBuf();
4414                                                 if (curr->GetWriteError() != "")
4415                                                 {
4416                                                         log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
4417                                                         kill_link(curr,curr->GetWriteError().c_str());
4418                                                         goto label;
4419                                                 }
4420
4421                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4422                                                 // their connection class.
4423                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4424                                                 {
4425                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4426                                                         kill_link(curr,"Registration timeout");
4427                                                         goto label;
4428                                                 }
4429                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4430                                                 {
4431                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
4432                                                         curr->dns_done = true;
4433                                                         statsDnsBad++;
4434                                                         FullConnectUser(curr);
4435                                                         goto label;
4436                                                 }
4437                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4438                                                 {
4439                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4440                                                         FullConnectUser(curr);
4441                                                         goto label;
4442                                                 }
4443                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4444                                                 {
4445                                                         if ((!curr->lastping) && (curr->registered == 7))
4446                                                         {
4447                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4448                                                                 kill_link(curr,"Ping timeout");
4449                                                                 goto label;
4450                                                         }
4451                                                         Write(curr->fd,"PING :%s",ServerName);
4452                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4453                                                         curr->lastping = 0;
4454                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4455                                                 }
4456                                         }
4457                                 }
4458                                 else break;
4459                                 count2++;
4460                         }
4461                         // increment the counter right to the end of the list, as kqueue processes everything in one go
4462 #endif
4463
4464                         v = 0;
4465
4466 #ifdef USE_KQUEUE
4467                         ts.tv_sec = 0;
4468                         ts.tv_nsec = 1000L;
4469                         // for now, we only read 1 event. We could read soooo many more :)
4470                         int i = kevent(kq, NULL, 0, &ke, 1, &ts);
4471                         if (i > 0)
4472                         {
4473                                 log(DEBUG,"kevent call: kq=%d, i=%d",kq,i);
4474                                 // KQUEUE: kevent gives us ONE fd which is ready to have something done to it. Do something to it.
4475                                 userrec* cu = fd_ref_table[ke.ident];
4476 #else
4477                         tval.tv_usec = 1000L;
4478                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4479
4480                         // now loop through all of the items in this pool if any are waiting
4481                         if (selectResult2 > 0)
4482                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4483                         {
4484                                 // SELECT: we have to iterate...
4485                                 userrec* cu = count2a->second;
4486 #endif
4487
4488 #ifdef _POSIX_PRIORITY_SCHEDULING
4489                                 sched_yield();
4490 #endif
4491                                 result = EAGAIN;
4492 #ifdef USE_KQUEUE
4493                                 // KQUEUE: We already know we have a valid FD. No checks needed.
4494                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
4495 #else
4496                                 // SELECT: We don't know if our FD is valid.
4497                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd)))
4498 #endif
4499                                 {
4500                                         log(DEBUG,"Data waiting on socket %d",cu->fd);
4501                                         int MOD_RESULT = 0;
4502                                         int result2 = 0;
4503                                         FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
4504                                         if (!MOD_RESULT)
4505                                         {
4506                                                 result = read(cu->fd, data, 65535);
4507                                         }
4508                                         else result = result2;
4509                                         log(DEBUG,"Read result: %d",result);
4510                                         if (result)
4511                                         {
4512                                                 statsRecv += result;
4513                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4514                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4515                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4516                                                 for (int checker = 0; checker < result; checker++)
4517                                                 {
4518                                                         if ((data[checker] == 0) || (data[checker] == 7))
4519                                                                 data[checker] = ' ';
4520                                                 }
4521                                                 if (result > 0)
4522                                                         data[result] = '\0';
4523                                                 userrec* current = cu;
4524                                                 int currfd = current->fd;
4525                                                 int floodlines = 0;
4526                                                 // add the data to the users buffer
4527                                                 if (result > 0)
4528                                                 if (!current->AddBuffer(data))
4529                                                 {
4530                                                         // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
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                                                 if (current->recvq.length() > NetBufferSize)
4545                                                 {
4546                                                         if (current->registered == 7)
4547                                                         {
4548                                                                 kill_link(current,"RecvQ exceeded");
4549                                                         }
4550                                                         else
4551                                                         {
4552                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4553                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4554                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4555                                                                 apply_lines();
4556                                                         }
4557                                                         goto label;
4558                                                 }
4559                                                 // while there are complete lines to process...
4560                                                 while (current->BufferIsReady())
4561                                                 {
4562                                                         floodlines++;
4563                                                         if (TIME > current->reset_due)
4564                                                         {
4565                                                                 current->reset_due = TIME + current->threshold;
4566                                                                 current->lines_in = 0;
4567                                                         }
4568                                                         current->lines_in++;
4569                                                         if (current->lines_in > current->flood)
4570                                                         {
4571                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4572                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4573                                                                 kill_link(current,"Excess flood");
4574                                                                 goto label;
4575                                                         }
4576                                                         if ((floodlines > current->flood) && (current->flood != 0))
4577                                                         {
4578                                                                 if (current->registered == 7)
4579                                                                 {
4580                                                                         log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4581                                                                         WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4582                                                                         kill_link(current,"Excess flood");
4583                                                                 }
4584                                                                 else
4585                                                                 {
4586                                                                         add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4587                                                                         apply_lines();
4588                                                                 }
4589                                                                 goto label;
4590                                                         }
4591                                                         char sanitized[MAXBUF];
4592                                                         // use GetBuffer to copy single lines into the sanitized string
4593                                                         std::string single_line = current->GetBuffer();
4594                                                         current->bytes_in += single_line.length();
4595                                                         current->cmds_in++;
4596                                                         if (single_line.length()>512)
4597                                                         {
4598                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4599                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4600                                                                 kill_link(current,"Excess flood");
4601                                                                 goto label;
4602                                                         }
4603                                                         strlcpy(sanitized,single_line.c_str(),MAXBUF);
4604                                                         if (*sanitized)
4605                                                         {
4606                                                                 userrec* old_comp = fd_ref_table[currfd];
4607                                                                 // we're gonna re-scan to check if the nick is gone, after every
4608                                                                 // command - if it has, we're gonna bail
4609                                                                 process_buffer(sanitized,current);
4610                                                                 // look for the user's record in case it's changed... if theyve quit,
4611                                                                 // we cant do anything more with their buffer, so bail.
4612                                                                 // there used to be an ugly, slow loop here. Now we have a reference
4613                                                                 // table, life is much easier (and FASTER)
4614                                                                 userrec* new_comp = fd_ref_table[currfd];
4615                                                                 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
4616                                                                         goto label;
4617
4618                                                         }
4619                                                 }
4620                                                 goto label;
4621                                         }
4622
4623                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4624                                         {
4625                                                 log(DEBUG,"killing: %s",cu->nick);
4626                                                 kill_link(cu,strerror(errno));
4627                                                 goto label;
4628                                         }
4629                                 }
4630                                 // result EAGAIN means nothing read
4631                                 if (result == EAGAIN)
4632                                 {
4633                                 }
4634                                 else
4635                                 if (result == 0)
4636                                 {
4637 #ifndef USE_KQUEUE
4638                                         if (count2->second)
4639                                         {
4640 #endif
4641                                                 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
4642                                                 kill_link(cu,"Client exited");
4643                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4644                                                 log(DEBUG,"Bailing from client exit");
4645                                                 goto label;
4646 #ifndef USE_KQUEUE
4647                                         }
4648 #endif
4649                                 }
4650                                 else if (result > 0)
4651                                 {
4652                                 }
4653                         }
4654                 }
4655                 for (int q = 0; q < total_in_this_set; q++)
4656                 {
4657                         count2++;
4658                 }
4659         }
4660
4661 #ifdef _POSIX_PRIORITY_SCHEDULING
4662         sched_yield();
4663 #endif
4664
4665 #ifndef USE_KQUEUE
4666         // set up select call
4667         for (count = 0; count < boundPortCount; count++)
4668         {
4669                 FD_SET (openSockfd[count], &selectFds);
4670         }
4671
4672         tv.tv_usec = 30000L;
4673         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4674
4675         /* select is reporting a waiting socket. Poll them all to find out which */
4676         if (selectResult > 0)
4677         {
4678                 for (count = 0; count < boundPortCount; count++)
4679                 {
4680                         if (FD_ISSET (openSockfd[count], &selectFds))
4681                         {
4682 #else
4683         ts.tv_sec = 0;
4684         ts.tv_nsec = 30000L;
4685         i = kevent(lkq, NULL, 0, ke_list, 32, &ts);
4686         if (i > 0) for (j = 0; j < i; j++)
4687         {
4688                 log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke.ident);
4689                 // this isnt as efficient as it could be, we could create a reference table
4690                 // to reference bound ports by fd, but this isnt a big bottleneck as the actual
4691                 // number of listening ports on the average ircd is a small number (less than 20)
4692                 // compared to the number of clients (possibly over 2000)
4693                 for (count = 0; count < boundPortCount; count++)
4694                 {
4695                         if (ke_list[j].ident == openSockfd[count])
4696                         {
4697 #endif
4698                                 char target[MAXBUF], resolved[MAXBUF];
4699                                 length = sizeof (client);
4700                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4701
4702                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4703                                 strlcpy (resolved, target, MAXBUF);
4704
4705                                 if (incomingSockfd < 0)
4706                                 {
4707                                         WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
4708                                         log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
4709                                         statsRefused++;
4710                                 }
4711                                 else
4712                                 {
4713                                         FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
4714                                         statsAccept++;
4715                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4716                                         log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
4717                                 }
4718                                 //goto label;
4719                         }
4720                 }
4721         }
4722         label:
4723         if (0) {};
4724 #ifdef _POSIX_PRIORITY_SCHEDULING
4725         sched_yield();
4726         sched_yield();
4727 #endif
4728 }
4729 /* not reached */
4730 close (incomingSockfd);
4731 }
4732