src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #ifdef USE_KQUEUE
  31 #include <sys/types.h>
  32 #include <sys/event.h>
  33 #include <sys/time.h>
  34 #endif
  35 #include <cstdio>
  36 #include <time.h>
  37 #include <string>
  38 #ifdef GCC3
  39 #include <ext/hash_map>
  40 #else
  41 #include <hash_map>
  42 #endif
  43 #include <map>
  44 #include <sstream>
  45 #include <vector>
  46 #include <errno.h>
  47 #include <deque>
  48 #include <errno.h>
  49 #include <unistd.h>
  50 #include <sched.h>
  51 #include "connection.h"
  52 #include "users.h"
  53 #include "servers.h"
  54 #include "ctables.h"
  55 #include "globals.h"
  56 #include "modules.h"
  57 #include "dynamic.h"
  58 #include "wildcard.h"
  59 #include "message.h"
  60 #include "mode.h"
  61 #include "commands.h"
  62 #include "xline.h"
  63 #include "inspstring.h"
  64 #include "dnsqueue.h"
  65
  66 #ifdef GCC3
  67 #define nspace __gnu_cxx
  68 #else
  69 #define nspace std
  70 #endif
  71
  72 int LogLevel = DEFAULT;
  73 char ServerName[MAXBUF];
  74 char Network[MAXBUF];
  75 char ServerDesc[MAXBUF];
  76 char AdminName[MAXBUF];
  77 char AdminEmail[MAXBUF];
  78 char AdminNick[MAXBUF];
  79 char diepass[MAXBUF];
  80 char restartpass[MAXBUF];
  81 char motd[MAXBUF];
  82 char rules[MAXBUF];
  83 char list[MAXBUF];
  84 char PrefixQuit[MAXBUF];
  85 char DieValue[MAXBUF];
  86 char DNSServer[MAXBUF];
  87 int debugging =  0;
  88 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  89 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  90 int DieDelay  =  5;
  91 time_t startup_time = time(NULL);
  92 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  93 extern int MaxWhoResults;
  94 time_t nb_start = 0;
  95 int dns_timeout = 5;
  96
  97 char DisabledCommands[MAXBUF];
  98
  99 bool AllowHalfop = true;
 100 bool AllowProtect = true;
 101 bool AllowFounder = true;
 102
 103 extern std::vector<Module*> modules;
 104 std::vector<std::string> module_names;
 105 extern std::vector<ircd_module*> factory;
 106
 107 extern int MODCOUNT;
 108 int openSockfd[MAXSOCKS];
 109 bool nofork = false;
 110 bool unlimitcore = false;
 111
 112 time_t TIME = time(NULL), OLDTIME = time(NULL);
 113
 114 #ifdef USE_KQUEUE
 115 int kq, lkq, skq;
 116 #endif
 117
 118 namespace nspace
 119 {
 120 #ifdef GCC34
 121         template<> struct hash<in_addr>
 122 #else
 123         template<> struct nspace::hash<in_addr>
 124 #endif
 125         {
 126                 size_t operator()(const struct in_addr &a) const
 127                 {
 128                         size_t q;
 129                         memcpy(&q,&a,sizeof(size_t));
 130                         return q;
 131                 }
 132         };
 133 #ifdef GCC34
 134         template<> struct hash<string>
 135 #else
 136         template<> struct nspace::hash<string>
 137 #endif
 138         {
 139                 size_t operator()(const string &s) const
 140                 {
 141                         char a[MAXBUF];
 142                         static struct hash<const char *> strhash;
 143                         strlcpy(a,s.c_str(),MAXBUF);
 144                         strlower(a);
 145                         return strhash(a);
 146                 }
 147         };
 148 }
 149
 150
 151 struct StrHashComp
 152 {
 153
 154         bool operator()(const string& s1, const string& s2) const
 155         {
 156                 char a[MAXBUF],b[MAXBUF];
 157                 strlcpy(a,s1.c_str(),MAXBUF);
 158                 strlcpy(b,s2.c_str(),MAXBUF);
 159                 strlower(a);
 160                 strlower(b);
 161                 return (strcasecmp(a,b) == 0);
 162         }
 163
 164 };
 165
 166 struct InAddr_HashComp
 167 {
 168
 169         bool operator()(const in_addr &s1, const in_addr &s2) const
 170         {
 171                 size_t q;
 172                 size_t p;
 173
 174                 memcpy(&q,&s1,sizeof(size_t));
 175                 memcpy(&p,&s2,sizeof(size_t));
 176
 177                 return (q == p);
 178         }
 179
 180 };
 181
 182
 183 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 184 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 185 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 186 typedef std::deque<command_t> command_table;
 187
 188 // This table references users by file descriptor.
 189 // its an array to make it VERY fast, as all lookups are referenced
 190 // by an integer, meaning there is no need for a scan/search operation.
 191 userrec* fd_ref_table[65536];
 192
 193 int statsAccept = 0, statsRefused = 0, statsUnknown = 0, statsCollisions = 0, statsDns = 0, statsDnsGood = 0, statsDnsBad = 0, statsConnects = 0, statsSent= 0, statsRecv = 0;
 194
 195 serverrec* me[32];
 196
 197 FILE *log_file;
 198
 199 user_hash clientlist;
 200 chan_hash chanlist;
 201 user_hash whowas;
 202 command_table cmdlist;
 203 file_cache MOTD;
 204 file_cache RULES;
 205 address_cache IP;
 206
 207 ClassVector Classes;
 208
 209 struct linger linger = { 0 };
 210 char MyExecutable[1024];
 211 int boundPortCount = 0;
 212 int portCount = 0, SERVERportCount = 0, ports[MAXSOCKS];
 213 int defaultRoute = 0;
 214 char ModPath[MAXBUF];
 215
 216 /* prototypes */
 217
 218 int has_channel(userrec *u, chanrec *c);
 219 int usercount(chanrec *c);
 220 int usercount_i(chanrec *c);
 221 char* Passwd(userrec *user);
 222 bool IsDenied(userrec *user);
 223 void AddWhoWas(userrec* u);
 224
 225 std::vector<long> auth_cookies;
 226 std::stringstream config_f(stringstream::in | stringstream::out);
 227
 228 std::vector<userrec*> all_opers;
 229
 230 static char already_sent[65536];
 231
 232 char lowermap[255];
 233
 234 void AddOper(userrec* user)
 235 {
 236         log(DEBUG,"Oper added to optimization list");
 237         all_opers.push_back(user);
 238 }
 239
 240 void DeleteOper(userrec* user)
 241 {
 242         for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
 243         {
 244                 if (*a == user)
 245                 {
 246                         log(DEBUG,"Oper removed from optimization list");
 247                         all_opers.erase(a);
 248                         return;
 249                 }
 250         }
 251 }
 252
 253 long GetRevision()
 254 {
 255         char Revision[] = "$Revision$";
 256         char *s1 = Revision;
 257         char *savept;
 258         char *v2 = strtok_r(s1," ",&savept);
 259         s1 = savept;
 260         v2 = strtok_r(s1," ",&savept);
 261         s1 = savept;
 262         return (long)(atof(v2)*10000);
 263 }
 264
 265
 266 std::string getservername()
 267 {
 268         return ServerName;
 269 }
 270
 271 std::string getserverdesc()
 272 {
 273         return ServerDesc;
 274 }
 275
 276 std::string getnetworkname()
 277 {
 278         return Network;
 279 }
 280
 281 std::string getadminname()
 282 {
 283         return AdminName;
 284 }
 285
 286 std::string getadminemail()
 287 {
 288         return AdminEmail;
 289 }
 290
 291 std::string getadminnick()
 292 {
 293         return AdminNick;
 294 }
 295
 296 void log(int level,char *text, ...)
 297 {
 298         char textbuffer[MAXBUF];
 299         va_list argsPtr;
 300         time_t rawtime;
 301         struct tm * timeinfo;
 302         if (level < LogLevel)
 303                 return;
 304
 305         time(&rawtime);
 306         timeinfo = localtime (&rawtime);
 307
 308         if (log_file)
 309         {
 310                 char b[MAXBUF];
 311                 va_start (argsPtr, text);
 312                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 313                 va_end(argsPtr);
 314                 strlcpy(b,asctime(timeinfo),MAXBUF);
 315                 b[24] = ':';    // we know this is the end of the time string
 316                 fprintf(log_file,"%s %s\n",b,textbuffer);
 317                 if (nofork)
 318                 {
 319                         // nofork enabled? display it on terminal too
 320                         printf("%s %s\n",b,textbuffer);
 321                 }
 322         }
 323 }
 324
 325 void readfile(file_cache &F, const char* fname)
 326 {
 327         FILE* file;
 328         char linebuf[MAXBUF];
 329
 330         log(DEBUG,"readfile: loading %s",fname);
 331         F.clear();
 332         file =  fopen(fname,"r");
 333         if (file)
 334         {
 335                 while (!feof(file))
 336                 {
 337                         fgets(linebuf,sizeof(linebuf),file);
 338                         linebuf[strlen(linebuf)-1]='\0';
 339                         if (linebuf[0] == 0)
 340                         {
 341                                 strcpy(linebuf,"  ");
 342                         }
 343                         if (!feof(file))
 344                         {
 345                                 F.push_back(linebuf);
 346                         }
 347                 }
 348                 fclose(file);
 349         }
 350         else
 351         {
 352                 log(DEBUG,"readfile: failed to load file: %s",fname);
 353         }
 354         log(DEBUG,"readfile: loaded %s, %lu lines",fname,(unsigned long)F.size());
 355 }
 356
 357 void ReadConfig(bool bail, userrec* user)
 358 {
 359         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 360         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF];
 361         ConnectClass c;
 362         std::stringstream errstr;
 363
 364         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 365         {
 366                 errstr.seekg(0);
 367                 if (bail)
 368                 {
 369                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 370                         Exit(0);
 371                 }
 372                 else
 373                 {
 374                         char dataline[1024];
 375                         if (user)
 376                         {
 377                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 378                                 while (!errstr.eof())
 379                                 {
 380                                         errstr.getline(dataline,1024);
 381                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 382                                 }
 383                         }
 384                         else
 385                         {
 386                                 WriteOpers("There were errors in the configuration file:",user->nick);
 387                                 while (!errstr.eof())
 388                                 {
 389                                         errstr.getline(dataline,1024);
 390                                         WriteOpers(dataline);
 391                                 }
 392                         }
 393                         return;
 394                 }
 395         }
 396
 397         ConfValue("server","name",0,ServerName,&config_f);
 398         ConfValue("server","description",0,ServerDesc,&config_f);
 399         ConfValue("server","network",0,Network,&config_f);
 400         ConfValue("admin","name",0,AdminName,&config_f);
 401         ConfValue("admin","email",0,AdminEmail,&config_f);
 402         ConfValue("admin","nick",0,AdminNick,&config_f);
 403         ConfValue("files","motd",0,motd,&config_f);
 404         ConfValue("files","rules",0,rules,&config_f);
 405         ConfValue("power","diepass",0,diepass,&config_f);
 406         ConfValue("power","pause",0,pauseval,&config_f);
 407         ConfValue("power","restartpass",0,restartpass,&config_f);
 408         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 409         ConfValue("die","value",0,DieValue,&config_f);
 410         ConfValue("options","loglevel",0,dbg,&config_f);
 411         ConfValue("options","netbuffersize",0,NB,&config_f);
 412         ConfValue("options","maxwho",0,MW,&config_f);
 413         ConfValue("options","allowhalfop",0,AH,&config_f);
 414         ConfValue("options","allowprotect",0,AP,&config_f);
 415         ConfValue("options","allowfounder",0,AF,&config_f);
 416         ConfValue("dns","server",0,DNSServer,&config_f);
 417         ConfValue("dns","timeout",0,DNT,&config_f);
 418         ConfValue("options","moduledir",0,ModPath,&config_f);
 419         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 420
 421         NetBufferSize = atoi(NB);
 422         MaxWhoResults = atoi(MW);
 423         dns_timeout = atoi(DNT);
 424         if (!dns_timeout)
 425                 dns_timeout = 5;
 426         if (!DNSServer[0])
 427                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 428         if (!ModPath[0])
 429                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 430         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 431         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 432         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 433         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 434         {
 435                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 436                 NetBufferSize = 10240;
 437         }
 438         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 439         {
 440                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 441                 MaxWhoResults = 128;
 442         }
 443         if (!strcmp(dbg,"debug"))
 444                 LogLevel = DEBUG;
 445         if (!strcmp(dbg,"verbose"))
 446                 LogLevel = VERBOSE;
 447         if (!strcmp(dbg,"default"))
 448                 LogLevel = DEFAULT;
 449         if (!strcmp(dbg,"sparse"))
 450                 LogLevel = SPARSE;
 451         if (!strcmp(dbg,"none"))
 452                 LogLevel = NONE;
 453         readfile(MOTD,motd);
 454         log(DEFAULT,"Reading message of the day...");
 455         readfile(RULES,rules);
 456         log(DEFAULT,"Reading connect classes...");
 457         Classes.clear();
 458         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 459         {
 460                 strcpy(Value,"");
 461                 ConfValue("connect","allow",i,Value,&config_f);
 462                 ConfValue("connect","timeout",i,timeout,&config_f);
 463                 ConfValue("connect","flood",i,flood,&config_f);
 464                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 465                 ConfValue("connect","threshold",i,thold,&config_f);
 466                 if (Value[0])
 467                 {
 468                         strlcpy(c.host,Value,MAXBUF);
 469                         c.type = CC_ALLOW;
 470                         strlcpy(Value,"",MAXBUF);
 471                         ConfValue("connect","password",i,Value,&config_f);
 472                         strlcpy(c.pass,Value,MAXBUF);
 473                         c.registration_timeout = 90; // default is 2 minutes
 474                         c.pingtime = 120;
 475                         c.flood = atoi(flood);
 476                         c.threshold = 5;
 477                         if (atoi(thold)>0)
 478                         {
 479                                 c.threshold = atoi(thold);
 480                         }
 481                         if (atoi(timeout)>0)
 482                         {
 483                                 c.registration_timeout = atoi(timeout);
 484                         }
 485                         if (atoi(pfreq)>0)
 486                         {
 487                                 c.pingtime = atoi(pfreq);
 488                         }
 489                         Classes.push_back(c);
 490                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%lu flood=%lu",c.host,c.pass,(unsigned long)c.registration_timeout,(unsigned long)c.flood);
 491                 }
 492                 else
 493                 {
 494                         ConfValue("connect","deny",i,Value,&config_f);
 495                         strlcpy(c.host,Value,MAXBUF);
 496                         c.type = CC_DENY;
 497                         Classes.push_back(c);
 498                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 499                 }
 500
 501         }
 502         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 503         read_xline_defaults();
 504         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 505         apply_lines();
 506         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 507         if (!bail)
 508         {
 509                 log(DEFAULT,"Adding and removing modules due to rehash...");
 510
 511                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 512
 513                 // store the old module names
 514                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 515                 {
 516                         old_module_names.push_back(*t);
 517                 }
 518
 519                 // get the new module names
 520                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 521                 {
 522                         ConfValue("module","name",count2,Value,&config_f);
 523                         new_module_names.push_back(Value);
 524                 }
 525
 526                 // now create a list of new modules that are due to be loaded
 527                 // and a seperate list of modules which are due to be unloaded
 528                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 529                 {
 530                         bool added = true;
 531                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 532                         {
 533                                 if (*old == *_new)
 534                                         added = false;
 535                         }
 536                         if (added)
 537                                 added_modules.push_back(*_new);
 538                 }
 539                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 540                 {
 541                         bool removed = true;
 542                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 543                         {
 544                                 if (*newm == *oldm)
 545                                         removed = false;
 546                         }
 547                         if (removed)
 548                                 removed_modules.push_back(*oldm);
 549                 }
 550                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 551                 // to be removed.
 552                 int rem = 0, add = 0;
 553                 if (!removed_modules.empty())
 554                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 555                 {
 556                         if (UnloadModule(removing->c_str()))
 557                         {
 558                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 559                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 560                                 rem++;
 561                         }
 562                         else
 563                         {
 564                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 565                         }
 566                 }
 567                 if (!added_modules.empty())
 568                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 569                 {
 570                         if (LoadModule(adding->c_str()))
 571                         {
 572                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 573                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 574                                 add++;
 575                         }
 576                         else
 577                         {
 578                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 579                         }
 580                 }
 581                 log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
 582         }
 583 }
 584
 585 /* write formatted text to a socket, in same format as printf */
 586
 587 void Write(int sock,char *text, ...)
 588 {
 589         if (sock == FD_MAGIC_NUMBER)
 590                 return;
 591         if (!text)
 592         {
 593                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 594                 return;
 595         }
 596         char textbuffer[MAXBUF];
 597         va_list argsPtr;
 598         char tb[MAXBUF];
 599
 600         va_start (argsPtr, text);
 601         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 602         va_end(argsPtr);
 603         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 604         chop(tb);
 605         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 606         {
 607                 int MOD_RESULT = 0;
 608                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 609                 if (!MOD_RESULT)
 610                         write(sock,tb,bytes > 512 ? 512 : bytes);
 611                 if (fd_ref_table[sock])
 612                 {
 613                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 614                         fd_ref_table[sock]->cmds_out++;
 615                 }
 616                 statsSent += (bytes > 512 ? 512 : bytes);
 617         }
 618 }
 619
 620 /* write a server formatted numeric response to a single socket */
 621
 622 void WriteServ(int sock, char* text, ...)
 623 {
 624         if (sock == FD_MAGIC_NUMBER)
 625                 return;
 626         if (!text)
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634
 635         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 636         va_end(argsPtr);
 637         int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 638         chop(tb);
 639         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 640         {
 641                 int MOD_RESULT = 0;
 642                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 643                 if (!MOD_RESULT)
 644                         write(sock,tb,bytes > 512 ? 512 : bytes);
 645                 if (fd_ref_table[sock])
 646                 {
 647                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 648                         fd_ref_table[sock]->cmds_out++;
 649                 }
 650                 statsSent += (bytes > 512 ? 512 : bytes);
 651         }
 652 }
 653
 654 /* write text from an originating user to originating user */
 655
 656 void WriteFrom(int sock, userrec *user,char* text, ...)
 657 {
 658         if (sock == FD_MAGIC_NUMBER)
 659                 return;
 660         if ((!text) || (!user))
 661         {
 662                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 663                 return;
 664         }
 665         char textbuffer[MAXBUF],tb[MAXBUF];
 666         va_list argsPtr;
 667         va_start (argsPtr, text);
 668
 669         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 670         va_end(argsPtr);
 671         int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 672         chop(tb);
 673         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 674         {
 675                 int MOD_RESULT = 0;
 676                 FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes > 512 ? 512 : bytes));
 677                 if (!MOD_RESULT)
 678                         write(sock,tb,bytes > 512 ? 512 : bytes);
 679                 if (fd_ref_table[sock])
 680                 {
 681                         fd_ref_table[sock]->bytes_out += (bytes > 512 ? 512 : bytes);
 682                         fd_ref_table[sock]->cmds_out++;
 683                 }
 684                 statsSent += (bytes > 512 ? 512 : bytes);
 685         }
 686 }
 687
 688 /* write text to an destination user from a source user (e.g. user privmsg) */
 689
 690 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 691 {
 692         if ((!dest) || (!data))
 693         {
 694                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 695                 return;
 696         }
 697         if (dest->fd == FD_MAGIC_NUMBER)
 698                 return;
 699         char textbuffer[MAXBUF],tb[MAXBUF];
 700         va_list argsPtr;
 701         va_start (argsPtr, data);
 702         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 703         va_end(argsPtr);
 704         chop(tb);
 705
 706         // if no source given send it from the server.
 707         if (!source)
 708         {
 709                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 710         }
 711         else
 712         {
 713                 WriteFrom(dest->fd,source,"%s",textbuffer);
 714         }
 715 }
 716
 717 /* write formatted text from a source user to all users on a channel
 718  * including the sender (NOT for privmsg, notice etc!) */
 719
 720 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 721 {
 722         if ((!Ptr) || (!user) || (!text))
 723         {
 724                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 725                 return;
 726         }
 727         char textbuffer[MAXBUF];
 728         va_list argsPtr;
 729         va_start (argsPtr, text);
 730         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 731         va_end(argsPtr);
 732
 733         std::vector<char*> *ulist = Ptr->GetUsers();
 734         for (int j = 0; j < ulist->size(); j++)
 735         {
 736                 char* o = (*ulist)[j];
 737                 userrec* otheruser = (userrec*)o;
 738                 if (otheruser->fd != FD_MAGIC_NUMBER)
 739                         WriteTo(user,otheruser,"%s",textbuffer);
 740         }
 741 }
 742
 743 /* write formatted text from a source user to all users on a channel
 744  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 745  * users on remote servers */
 746
 747 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 748 {
 749         if ((!Ptr) || (!text))
 750         {
 751                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 752                 return;
 753         }
 754         char textbuffer[MAXBUF];
 755         va_list argsPtr;
 756         va_start (argsPtr, text);
 757         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 758         va_end(argsPtr);
 759
 760         std::vector<char*> *ulist = Ptr->GetUsers();
 761         for (int j = 0; j < ulist->size(); j++)
 762         {
 763                 char* o = (*ulist)[j];
 764                 userrec* otheruser = (userrec*)o;
 765                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 766                 {
 767                         if (!user)
 768                         {
 769                                 WriteServ(otheruser->fd,"%s",textbuffer);
 770                         }
 771                         else
 772                         {
 773                                 WriteTo(user,otheruser,"%s",textbuffer);
 774                         }
 775                 }
 776         }
 777 }
 778
 779
 780 void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
 781 {
 782         if ((!Ptr) || (!text))
 783         {
 784                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 785                 return;
 786         }
 787         char textbuffer[MAXBUF];
 788         va_list argsPtr;
 789         va_start (argsPtr, text);
 790         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 791         va_end(argsPtr);
 792
 793
 794         std::vector<char*> *ulist = Ptr->GetUsers();
 795         for (int j = 0; j < ulist->size(); j++)
 796         {
 797                 char* o = (*ulist)[j];
 798                 userrec* otheruser = (userrec*)o;
 799                 if (otheruser->fd != FD_MAGIC_NUMBER)
 800                         WriteServ(otheruser->fd,"%s",textbuffer);
 801         }
 802 }
 803
 804
 805 /* write formatted text from a source user to all users on a channel except
 806  * for the sender (for privmsg etc) */
 807
 808 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 809 {
 810         if ((!Ptr) || (!user) || (!text))
 811         {
 812                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 813                 return;
 814         }
 815         char textbuffer[MAXBUF];
 816         va_list argsPtr;
 817         va_start (argsPtr, text);
 818         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 819         va_end(argsPtr);
 820
 821         std::vector<char*> *ulist = Ptr->GetUsers();
 822         for (int j = 0; j < ulist->size(); j++)
 823         {
 824                 char* o = (*ulist)[j];
 825                 userrec* otheruser = (userrec*)o;
 826                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 827                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 828         }
 829 }
 830
 831
 832 std::string GetServerDescription(char* servername)
 833 {
 834         for (int j = 0; j < 32; j++)
 835         {
 836                 if (me[j] != NULL)
 837                 {
 838                         for (int k = 0; k < me[j]->connectors.size(); k++)
 839                         {
 840                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 841                                 {
 842                                         return me[j]->connectors[k].GetDescription();
 843                                 }
 844                         }
 845                 }
 846                 return ServerDesc; // not a remote server that can be found, it must be me.
 847         }
 848 }
 849
 850
 851 /* write a formatted string to all users who share at least one common
 852  * channel, including the source user e.g. for use in NICK */
 853
 854 void WriteCommon(userrec *u, char* text, ...)
 855 {
 856         if (!u)
 857         {
 858                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 859                 return;
 860         }
 861
 862         if (u->registered != 7) {
 863                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 864                 return;
 865         }
 866
 867         char textbuffer[MAXBUF];
 868         va_list argsPtr;
 869         va_start (argsPtr, text);
 870         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 871         va_end(argsPtr);
 872
 873         // FIX: Stops a message going to the same person more than once
 874         bzero(&already_sent,65536);
 875
 876         bool sent_to_at_least_one = false;
 877
 878         for (int i = 0; i < MAXCHANS; i++)
 879         {
 880                 if (u->chans[i].channel)
 881                 {
 882                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 883                         for (int j = 0; j < ulist->size(); j++)
 884                         {
 885                                 char* o = (*ulist)[j];
 886                                 userrec* otheruser = (userrec*)o;
 887                                 if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 888                                 {
 889                                         already_sent[otheruser->fd] = 1;
 890                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 891                                         sent_to_at_least_one = true;
 892                                 }
 893                         }
 894                 }
 895         }
 896         // if the user was not in any channels, no users will receive the text. Make sure the user
 897         // receives their OWN message for WriteCommon
 898         if (!sent_to_at_least_one)
 899         {
 900                 WriteFrom(u->fd,u,"%s",textbuffer);
 901         }
 902 }
 903
 904 /* write a formatted string to all users who share at least one common
 905  * channel, NOT including the source user e.g. for use in QUIT */
 906
 907 void WriteCommonExcept(userrec *u, char* text, ...)
 908 {
 909         if (!u)
 910         {
 911                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 912                 return;
 913         }
 914
 915         if (u->registered != 7) {
 916                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 917                 return;
 918         }
 919
 920         char textbuffer[MAXBUF];
 921         va_list argsPtr;
 922         va_start (argsPtr, text);
 923         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 924         va_end(argsPtr);
 925
 926         bzero(&already_sent,65536);
 927
 928         for (int i = 0; i < MAXCHANS; i++)
 929         {
 930                 if (u->chans[i].channel)
 931                 {
 932                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 933                         for (int j = 0; j < ulist->size(); j++)
 934                         {
 935                                 char* o = (*ulist)[j];
 936                                 userrec* otheruser = (userrec*)o;
 937                                 if (u != otheruser)
 938                                 {
 939                                         if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 940                                         {
 941                                                 already_sent[otheruser->fd] = 1;
 942                                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 943                                         }
 944                                 }
 945                         }
 946                 }
 947         }
 948 }
 949
 950 void WriteOpers(char* text, ...)
 951 {
 952         if (!text)
 953         {
 954                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 955                 return;
 956         }
 957
 958         char textbuffer[MAXBUF];
 959         va_list argsPtr;
 960         va_start (argsPtr, text);
 961         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 962         va_end(argsPtr);
 963
 964         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 965         {
 966                 userrec* a = *i;
 967                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 968                 {
 969                         if (strchr(a->modes,'s'))
 970                         {
 971                                 // send server notices to all with +s
 972                                 WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
 973                         }
 974                 }
 975         }
 976 }
 977
 978 void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
 979 {
 980         if ((!text) || (!source))
 981         {
 982                 log(DEFAULT,"*** BUG *** NoticeAllOpers was given an invalid parameter");
 983                 return;
 984         }
 985
 986         char textbuffer[MAXBUF];
 987         va_list argsPtr;
 988         va_start (argsPtr, text);
 989         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 990         va_end(argsPtr);
 991
 992         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 993         {
 994                 userrec* a = *i;
 995                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 996                 {
 997                         if (strchr(a->modes,'s'))
 998                         {
 999                                 // send server notices to all with +s
1000                                 WriteServ(a->fd,"NOTICE %s :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
1001                         }
1002                 }
1003         }
1004
1005         if (!local_only)
1006         {
1007                 char buffer[MAXBUF];
1008                 snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
1009                 NetSendToAll(buffer);
1010         }
1011 }
1012
1013 // returns TRUE of any users on channel C occupy server 'servername'.
1014
1015 bool ChanAnyOnThisServer(chanrec *c,char* servername)
1016 {
1017         log(DEBUG,"ChanAnyOnThisServer");
1018
1019         std::vector<char*> *ulist = c->GetUsers();
1020         for (int j = 0; j < ulist->size(); j++)
1021         {
1022                 char* o = (*ulist)[j];
1023                 userrec* user = (userrec*)o;
1024                 if (!strcasecmp(user->server,servername))
1025                         return true;
1026         }
1027         return false;
1028 }
1029
1030 // returns true if user 'u' shares any common channels with any users on server 'servername'
1031
1032 bool CommonOnThisServer(userrec* u,const char* servername)
1033 {
1034         log(DEBUG,"ChanAnyOnThisServer");
1035
1036         for (int i = 0; i < MAXCHANS; i++)
1037         {
1038                 if (u->chans[i].channel)
1039                 {
1040                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1041                         for (int j = 0; j < ulist->size(); j++)
1042                         {
1043                                 char* o = (*ulist)[j];
1044                                 userrec* user = (userrec*)o;
1045                                 if (!strcasecmp(user->server,servername))
1046                                         return true;
1047                         }
1048                 }
1049         }
1050         return false;
1051 }
1052
1053
1054 void NetSendToCommon(userrec* u, char* s)
1055 {
1056         char buffer[MAXBUF];
1057         snprintf(buffer,MAXBUF,"%s",s);
1058
1059         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1060
1061         std::string msg = buffer;
1062         FOREACH_MOD OnPacketTransmit(msg,s);
1063         strlcpy(buffer,msg.c_str(),MAXBUF);
1064
1065         for (int j = 0; j < 32; j++)
1066         {
1067                 if (me[j] != NULL)
1068                 {
1069                         for (int k = 0; k < me[j]->connectors.size(); k++)
1070                         {
1071                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1072                                 {
1073                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1074                                 }
1075                         }
1076                 }
1077         }
1078 }
1079
1080
1081 void NetSendToAll(char* s)
1082 {
1083         char buffer[MAXBUF];
1084         snprintf(buffer,MAXBUF,"%s",s);
1085
1086         log(DEBUG,"NetSendToAll: '%s'",s);
1087
1088         std::string msg = buffer;
1089         FOREACH_MOD OnPacketTransmit(msg,s);
1090         strlcpy(buffer,msg.c_str(),MAXBUF);
1091
1092         for (int j = 0; j < 32; j++)
1093         {
1094                 if (me[j] != NULL)
1095                 {
1096                         for (int k = 0; k < me[j]->connectors.size(); k++)
1097                         {
1098                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1099                         }
1100                 }
1101         }
1102 }
1103
1104 void NetSendToAllAlive(char* s)
1105 {
1106         char buffer[MAXBUF];
1107         snprintf(buffer,MAXBUF,"%s",s);
1108
1109         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1110
1111         std::string msg = buffer;
1112         FOREACH_MOD OnPacketTransmit(msg,s);
1113         strlcpy(buffer,msg.c_str(),MAXBUF);
1114
1115         for (int j = 0; j < 32; j++)
1116         {
1117                 if (me[j] != NULL)
1118                 {
1119                         for (int k = 0; k < me[j]->connectors.size(); k++)
1120                         {
1121                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1122                                 {
1123                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1124                                 }
1125                                 else
1126                                 {
1127                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1128                                 }
1129                         }
1130                 }
1131         }
1132 }
1133
1134
1135 void NetSendToOne(char* target,char* s)
1136 {
1137         char buffer[MAXBUF];
1138         snprintf(buffer,MAXBUF,"%s",s);
1139
1140         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1141
1142         std::string msg = buffer;
1143         FOREACH_MOD OnPacketTransmit(msg,s);
1144         strlcpy(buffer,msg.c_str(),MAXBUF);
1145
1146         for (int j = 0; j < 32; j++)
1147         {
1148                 if (me[j] != NULL)
1149                 {
1150                         for (int k = 0; k < me[j]->connectors.size(); k++)
1151                         {
1152                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1153                                 {
1154                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1155                                 }
1156                         }
1157                 }
1158         }
1159 }
1160
1161 void NetSendToAllExcept(const char* target,char* s)
1162 {
1163         char buffer[MAXBUF];
1164         snprintf(buffer,MAXBUF,"%s",s);
1165
1166         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1167
1168         std::string msg = buffer;
1169         FOREACH_MOD OnPacketTransmit(msg,s);
1170         strlcpy(buffer,msg.c_str(),MAXBUF);
1171
1172         for (int j = 0; j < 32; j++)
1173         {
1174                 if (me[j] != NULL)
1175                 {
1176                         for (int k = 0; k < me[j]->connectors.size(); k++)
1177                         {
1178                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1179                                 {
1180                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1181                                 }
1182                         }
1183                 }
1184         }
1185 }
1186
1187
1188 void WriteMode(const char* modes, int flags, const char* text, ...)
1189 {
1190         if ((!text) || (!modes) || (!flags))
1191         {
1192                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1193                 return;
1194         }
1195
1196         char textbuffer[MAXBUF];
1197         va_list argsPtr;
1198         va_start (argsPtr, text);
1199         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1200         va_end(argsPtr);
1201         int modelen = strlen(modes);
1202
1203         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1204         {
1205                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1206                 {
1207                         bool send_to_user = false;
1208
1209                         if (flags == WM_AND)
1210                         {
1211                                 send_to_user = true;
1212                                 for (int n = 0; n < modelen; n++)
1213                                 {
1214                                         if (!hasumode(i->second,modes[n]))
1215                                         {
1216                                                 send_to_user = false;
1217                                                 break;
1218                                         }
1219                                 }
1220                         }
1221                         else if (flags == WM_OR)
1222                         {
1223                                 send_to_user = false;
1224                                 for (int n = 0; n < modelen; n++)
1225                                 {
1226                                         if (hasumode(i->second,modes[n]))
1227                                         {
1228                                                 send_to_user = true;
1229                                                 break;
1230                                         }
1231                                 }
1232                         }
1233
1234                         if (send_to_user)
1235                         {
1236                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1237                         }
1238                 }
1239         }
1240 }
1241
1242
1243 void NoticeAll(userrec *source, bool local_only, char* text, ...)
1244 {
1245         if ((!text) || (!source))
1246         {
1247                 log(DEFAULT,"*** BUG *** NoticeAll was given an invalid parameter");
1248                 return;
1249         }
1250
1251         char textbuffer[MAXBUF];
1252         va_list argsPtr;
1253         va_start (argsPtr, text);
1254         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1255         va_end(argsPtr);
1256
1257         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1258         {
1259                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1260                 {
1261                         WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
1262                 }
1263         }
1264
1265         if (!local_only)
1266         {
1267                 char buffer[MAXBUF];
1268                 snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
1269                 NetSendToAll(buffer);
1270         }
1271
1272 }
1273
1274 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1275 {
1276         if ((!text) || (!source))
1277         {
1278                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1279                 return;
1280         }
1281
1282         char textbuffer[MAXBUF];
1283         va_list argsPtr;
1284         va_start (argsPtr, text);
1285         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1286         va_end(argsPtr);
1287
1288         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1289         {
1290                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1291                 {
1292                         if (strchr(i->second->modes,'w'))
1293                         {
1294                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1295                         }
1296                 }
1297         }
1298
1299         if (!local_only)
1300         {
1301                 char buffer[MAXBUF];
1302                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1303                 NetSendToAll(buffer);
1304         }
1305 }
1306
1307 /* convert a string to lowercase. Note following special circumstances
1308  * taken from RFC 1459. Many "official" server branches still hold to this
1309  * rule so i will too;
1310  *
1311  *  Because of IRC's scandanavian origin, the characters {}| are
1312  *  considered to be the lower case equivalents of the characters []\,
1313  *  respectively. This is a critical issue when determining the
1314  *  equivalence of two nicknames.
1315  */
1316
1317 void strlower(char *n)
1318 {
1319         if (n)
1320         {
1321                 for (char* t = n; *t; t++)
1322                         *t = lowermap[*t];
1323         }
1324 }
1325
1326
1327
1328 /* Find a user record by nickname and return a pointer to it */
1329
1330 userrec* Find(std::string nick)
1331 {
1332         user_hash::iterator iter = clientlist.find(nick);
1333
1334         if (iter == clientlist.end())
1335                 /* Couldn't find it */
1336                 return NULL;
1337
1338         return iter->second;
1339 }
1340
1341 /* find a channel record by channel name and return a pointer to it */
1342
1343 chanrec* FindChan(const char* chan)
1344 {
1345         if (!chan)
1346         {
1347                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1348                 return NULL;
1349         }
1350
1351         chan_hash::iterator iter = chanlist.find(chan);
1352
1353         if (iter == chanlist.end())
1354                 /* Couldn't find it */
1355                 return NULL;
1356
1357         return iter->second;
1358 }
1359
1360
1361 long GetMaxBans(char* name)
1362 {
1363         char CM[MAXBUF];
1364         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1365         {
1366                 ConfValue("banlist","chan",count,CM,&config_f);
1367                 if (match(name,CM))
1368                 {
1369                         ConfValue("banlist","limit",count,CM,&config_f);
1370                         return atoi(CM);
1371                 }
1372         }
1373         return 64;
1374 }
1375
1376
1377 void purge_empty_chans(userrec* u)
1378 {
1379
1380         int go_again = 1, purge = 0;
1381
1382         // firstly decrement the count on each channel
1383         for (int f = 0; f < MAXCHANS; f++)
1384         {
1385                 if (u->chans[f].channel)
1386                 {
1387                         u->chans[f].channel->DelUser((char*)u);
1388                 }
1389         }
1390
1391         for (int i = 0; i < MAXCHANS; i++)
1392         {
1393                 if (u->chans[i].channel)
1394                 {
1395                         if (!usercount(u->chans[i].channel))
1396                         {
1397                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1398                                 /* kill the record */
1399                                 if (i2 != chanlist.end())
1400                                 {
1401                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1402                                         if (i2->second)
1403                                                 delete i2->second;
1404                                         chanlist.erase(i2);
1405                                         go_again = 1;
1406                                         purge++;
1407                                         u->chans[i].channel = NULL;
1408                                 }
1409                         }
1410                         else
1411                         {
1412                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1413                         }
1414                 }
1415         }
1416         log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
1417
1418         DeleteOper(u);
1419 }
1420
1421
1422 char scratch[MAXBUF];
1423 char sparam[MAXBUF];
1424
1425 char* chanmodes(chanrec *chan)
1426 {
1427         if (!chan)
1428         {
1429                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1430                 strcpy(scratch,"");
1431                 return scratch;
1432         }
1433
1434         strcpy(scratch,"");
1435         strcpy(sparam,"");
1436         if (chan->noexternal)
1437         {
1438                 strlcat(scratch,"n",MAXMODES);
1439         }
1440         if (chan->topiclock)
1441         {
1442                 strlcat(scratch,"t",MAXMODES);
1443         }
1444         if (chan->key[0])
1445         {
1446                 strlcat(scratch,"k",MAXMODES);
1447         }
1448         if (chan->limit)
1449         {
1450                 strlcat(scratch,"l",MAXMODES);
1451         }
1452         if (chan->inviteonly)
1453         {
1454                 strlcat(scratch,"i",MAXMODES);
1455         }
1456         if (chan->moderated)
1457         {
1458                 strlcat(scratch,"m",MAXMODES);
1459         }
1460         if (chan->secret)
1461         {
1462                 strlcat(scratch,"s",MAXMODES);
1463         }
1464         if (chan->c_private)
1465         {
1466                 strlcat(scratch,"p",MAXMODES);
1467         }
1468         if (chan->key[0])
1469         {
1470                 strlcat(sparam," ",MAXBUF);
1471                 strlcat(sparam,chan->key,MAXBUF);
1472         }
1473         if (chan->limit)
1474         {
1475                 char foo[24];
1476                 sprintf(foo," %lu",(unsigned long)chan->limit);
1477                 strlcat(sparam,foo,MAXBUF);
1478         }
1479         if (*chan->custom_modes)
1480         {
1481                 strlcat(scratch,chan->custom_modes,MAXMODES);
1482                 for (int z = 0; chan->custom_modes[z] != 0; z++)
1483                 {
1484                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1485                         if (extparam != "")
1486                         {
1487                                 strlcat(sparam," ",MAXBUF);
1488                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1489                         }
1490                 }
1491         }
1492         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1493         strlcat(scratch,sparam,MAXMODES);
1494         return scratch;
1495 }
1496
1497
1498 /* compile a userlist of a channel into a string, each nick seperated by
1499  * spaces and op, voice etc status shown as @ and + */
1500
1501 void userlist(userrec *user,chanrec *c)
1502 {
1503         if ((!c) || (!user))
1504         {
1505                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1506                 return;
1507         }
1508
1509         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1510
1511         std::vector<char*> *ulist = c->GetUsers();
1512         for (int i = 0; i < ulist->size(); i++)
1513         {
1514                 char* o = (*ulist)[i];
1515                 userrec* otheruser = (userrec*)o;
1516                 if ((!has_channel(user,c)) && (strchr(otheruser->modes,'i')))
1517                 {
1518                         /* user is +i, and source not on the channel, does not show
1519                          * nick in NAMES list */
1520                         continue;
1521                 }
1522                 strlcat(list,cmode(otheruser,c),MAXBUF);
1523                 strlcat(list,otheruser->nick,MAXBUF);
1524                 strlcat(list," ",MAXBUF);
1525                 if (strlen(list)>(480-NICKMAX))
1526                 {
1527                         /* list overflowed into
1528                          * multiple numerics */
1529                         WriteServ(user->fd,"%s",list);
1530                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1531                 }
1532         }
1533         /* if whats left in the list isnt empty, send it */
1534         if (list[strlen(list)-1] != ':')
1535         {
1536                 WriteServ(user->fd,"%s",list);
1537         }
1538 }
1539
1540 /* return a count of the users on a specific channel accounting for
1541  * invisible users who won't increase the count. e.g. for /LIST */
1542
1543 int usercount_i(chanrec *c)
1544 {
1545         int count = 0;
1546
1547         if (!c)
1548         {
1549                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1550                 return 0;
1551         }
1552
1553         strcpy(list,"");
1554         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1555         {
1556                 if (i->second)
1557                 {
1558                         if (has_channel(i->second,c))
1559                         {
1560                                 if (isnick(i->second->nick))
1561                                 {
1562                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1563                                         {
1564                                                 /* user is +i, and source not on the channel, does not show
1565                                                  * nick in NAMES list */
1566                                                 continue;
1567                                         }
1568                                         count++;
1569                                 }
1570                         }
1571                 }
1572         }
1573         log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
1574         return count;
1575 }
1576
1577
1578 int usercount(chanrec *c)
1579 {
1580         if (!c)
1581         {
1582                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1583                 return 0;
1584         }
1585         int count = c->GetUserCounter();
1586         log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
1587         return count;
1588 }
1589
1590
1591 /* add a channel to a user, creating the record for it if needed and linking
1592  * it to the user record */
1593
1594 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1595 {
1596         if ((!user) || (!cn))
1597         {
1598                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1599                 return 0;
1600         }
1601
1602         chanrec* Ptr;
1603         int created = 0;
1604         char cname[MAXBUF];
1605
1606         strncpy(cname,cn,MAXBUF);
1607
1608         // we MUST declare this wherever we use FOREACH_RESULT
1609         int MOD_RESULT = 0;
1610
1611         if (strlen(cname) > CHANMAX-1)
1612         {
1613                 cname[CHANMAX-1] = '\0';
1614         }
1615
1616         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1617
1618         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1619         {
1620                 return NULL; // already on the channel!
1621         }
1622
1623
1624         if (!FindChan(cname))
1625         {
1626                 MOD_RESULT = 0;
1627                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1628                 if (MOD_RESULT == 1) {
1629                         return NULL;
1630                 }
1631
1632                 /* create a new one */
1633                 log(DEBUG,"add_channel: creating: %s",cname);
1634                 {
1635                         chanlist[cname] = new chanrec();
1636
1637                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1638                         chanlist[cname]->topiclock = 1;
1639                         chanlist[cname]->noexternal = 1;
1640                         chanlist[cname]->created = TIME;
1641                         strcpy(chanlist[cname]->topic, "");
1642                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1643                         chanlist[cname]->topicset = 0;
1644                         Ptr = chanlist[cname];
1645                         log(DEBUG,"add_channel: created: %s",cname);
1646                         /* set created to 2 to indicate user
1647                          * is the first in the channel
1648                          * and should be given ops */
1649                         created = 2;
1650                 }
1651         }
1652         else
1653         {
1654                 /* channel exists, just fish out a pointer to its struct */
1655                 Ptr = FindChan(cname);
1656                 if (Ptr)
1657                 {
1658                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1659
1660                         // the override flag allows us to bypass channel modes
1661                         // and bans (used by servers)
1662                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1663                         {
1664                                 log(DEBUG,"Not overriding...");
1665                                 MOD_RESULT = 0;
1666                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1667                                 if (MOD_RESULT == 1) {
1668                                         return NULL;
1669                                 }
1670                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1671
1672                                 if (!MOD_RESULT)
1673                                 {
1674                                         log(DEBUG,"add_channel: checking key, invite, etc");
1675                                         MOD_RESULT = 0;
1676                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1677                                         if (MOD_RESULT == 0)
1678                                         {
1679                                                 if (Ptr->key[0])
1680                                                 {
1681                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1682                                                         if (!key)
1683                                                         {
1684                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1685                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1686                                                                 return NULL;
1687                                                         }
1688                                                         else
1689                                                         {
1690                                                                 if (strcasecmp(key,Ptr->key))
1691                                                                 {
1692                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1693                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1694                                                                         return NULL;
1695                                                                 }
1696                                                         }
1697                                                 }
1698                                                 log(DEBUG,"add_channel: no key");
1699                                         }
1700                                         MOD_RESULT = 0;
1701                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1702                                         if (MOD_RESULT == 0)
1703                                         {
1704                                                 if (Ptr->inviteonly)
1705                                                 {
1706                                                         log(DEBUG,"add_channel: channel is +i");
1707                                                         if (user->IsInvited(Ptr->name))
1708                                                         {
1709                                                                 /* user was invited to channel */
1710                                                                 /* there may be an optional channel NOTICE here */
1711                                                         }
1712                                                         else
1713                                                         {
1714                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1715                                                                 return NULL;
1716                                                         }
1717                                                 }
1718                                                 log(DEBUG,"add_channel: channel is not +i");
1719                                         }
1720                                         MOD_RESULT = 0;
1721                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1722                                         if (MOD_RESULT == 0)
1723                                         {
1724                                                 if (Ptr->limit)
1725                                                 {
1726                                                         if (usercount(Ptr) >= Ptr->limit)
1727                                                         {
1728                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1729                                                                 return NULL;
1730                                                         }
1731                                                 }
1732                                         }
1733                                         log(DEBUG,"add_channel: about to walk banlist");
1734                                         MOD_RESULT = 0;
1735                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1736                                         if (MOD_RESULT == 0)
1737                                         {
1738                                                 /* check user against the channel banlist */
1739                                                 if (Ptr)
1740                                                 {
1741                                                         if (Ptr->bans.size())
1742                                                         {
1743                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1744                                                                 {
1745                                                                         if (match(user->GetFullHost(),i->data))
1746                                                                         {
1747                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1748                                                                                 return NULL;
1749                                                                         }
1750                                                                 }
1751                                                         }
1752                                                 }
1753                                                 log(DEBUG,"add_channel: bans checked");
1754                                         }
1755
1756                                 }
1757
1758
1759                                 if ((Ptr) && (user))
1760                                 {
1761                                         user->RemoveInvite(Ptr->name);
1762                                 }
1763
1764                                 log(DEBUG,"add_channel: invites removed");
1765
1766                         }
1767                         else
1768                         {
1769                                 log(DEBUG,"Overridden checks");
1770                         }
1771
1772
1773                 }
1774                 created = 1;
1775         }
1776
1777         log(DEBUG,"Passed channel checks");
1778
1779         for (int index =0; index != MAXCHANS; index++)
1780         {
1781                 log(DEBUG,"Check location %d",index);
1782                 if (user->chans[index].channel == NULL)
1783                 {
1784                         log(DEBUG,"Adding into their channel list at location %d",index);
1785
1786                         if (created == 2)
1787                         {
1788                                 /* first user in is given ops */
1789                                 user->chans[index].uc_modes = UCMODE_OP;
1790                         }
1791                         else
1792                         {
1793                                 user->chans[index].uc_modes = 0;
1794                         }
1795                         user->chans[index].channel = Ptr;
1796                         Ptr->IncUserCounter();
1797                         Ptr->AddUser((char*)user);
1798                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1799
1800                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1801                         {
1802                                 // use the stamdard J token with no privilages.
1803                                 char buffer[MAXBUF];
1804                                 if (created == 2)
1805                                 {
1806                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1807                                 }
1808                                 else
1809                                 {
1810                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1811                                 }
1812                                 NetSendToAll(buffer);
1813                         }
1814
1815                         log(DEBUG,"Sent JOIN to client");
1816
1817                         if (Ptr->topicset)
1818                         {
1819                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1820                                 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
1821                         }
1822                         userlist(user,Ptr);
1823                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1824                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1825                         //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
1826                         FOREACH_MOD OnUserJoin(user,Ptr);
1827                         return Ptr;
1828                 }
1829         }
1830         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1831         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1832         return NULL;
1833 }
1834
1835 /* remove a channel from a users record, and remove the record from memory
1836  * if the channel has become empty */
1837
1838 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1839 {
1840         if ((!user) || (!cname))
1841         {
1842                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1843                 return NULL;
1844         }
1845
1846         chanrec* Ptr;
1847
1848         if ((!cname) || (!user))
1849         {
1850                 return NULL;
1851         }
1852
1853         Ptr = FindChan(cname);
1854
1855         if (!Ptr)
1856         {
1857                 return NULL;
1858         }
1859
1860         FOREACH_MOD OnUserPart(user,Ptr);
1861         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1862
1863         for (int i =0; i != MAXCHANS; i++)
1864         {
1865                 /* zap it from the channel list of the user */
1866                 if (user->chans[i].channel == Ptr)
1867                 {
1868                         if (reason)
1869                         {
1870                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1871
1872                                 if (!local)
1873                                 {
1874                                         char buffer[MAXBUF];
1875                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1876                                         NetSendToAll(buffer);
1877                                 }
1878
1879
1880                         }
1881                         else
1882                         {
1883                                 if (!local)
1884                                 {
1885                                         char buffer[MAXBUF];
1886                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1887                                         NetSendToAll(buffer);
1888                                 }
1889
1890                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1891                         }
1892                         user->chans[i].uc_modes = 0;
1893                         user->chans[i].channel = NULL;
1894                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1895                         break;
1896                 }
1897         }
1898
1899         Ptr->DelUser((char*)user);
1900
1901         /* if there are no users left on the channel */
1902         if (!usercount(Ptr))
1903         {
1904                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1905
1906                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1907
1908                 /* kill the record */
1909                 if (iter != chanlist.end())
1910                 {
1911                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1912                         delete Ptr;
1913                         chanlist.erase(iter);
1914                 }
1915         }
1916 }
1917
1918
1919 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1920 {
1921         if ((!src) || (!user) || (!Ptr) || (!reason))
1922         {
1923                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1924                 return;
1925         }
1926
1927         if ((!Ptr) || (!user) || (!src))
1928         {
1929                 return;
1930         }
1931
1932         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1933
1934         if (!has_channel(user,Ptr))
1935         {
1936                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1937                 return;
1938         }
1939
1940         int MOD_RESULT = 0;
1941         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1942         if (MOD_RESULT == ACR_DENY)
1943                 return;
1944
1945         if (MOD_RESULT == ACR_DEFAULT)
1946         {
1947                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1948                 {
1949                         if (cstatus(src,Ptr) == STATUS_HOP)
1950                         {
1951                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1952                         }
1953                         else
1954                         {
1955                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1956                         }
1957
1958                         return;
1959                 }
1960         }
1961
1962         MOD_RESULT = 0;
1963         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1964         if (MOD_RESULT)
1965                 return;
1966
1967         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1968
1969         for (int i =0; i != MAXCHANS; i++)
1970         {
1971                 /* zap it from the channel list of the user */
1972                 if (user->chans[i].channel)
1973                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1974                 {
1975                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1976                         user->chans[i].uc_modes = 0;
1977                         user->chans[i].channel = NULL;
1978                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1979                         break;
1980                 }
1981         }
1982
1983         Ptr->DelUser((char*)user);
1984
1985         /* if there are no users left on the channel */
1986         if (!usercount(Ptr))
1987         {
1988                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1989
1990                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1991
1992                 /* kill the record */
1993                 if (iter != chanlist.end())
1994                 {
1995                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1996                         delete Ptr;
1997                         chanlist.erase(iter);
1998                 }
1999         }
2000 }
2001
2002
2003
2004
2005 /* This function pokes and hacks at a parameter list like the following:
2006  *
2007  * PART #winbot,#darkgalaxy :m00!
2008  *
2009  * to turn it into a series of individual calls like this:
2010  *
2011  * PART #winbot :m00!
2012  * PART #darkgalaxy :m00!
2013  *
2014  * The seperate calls are sent to a callback function provided by the caller
2015  * (the caller will usually call itself recursively). The callback function
2016  * must be a command handler. Calling this function on a line with no list causes
2017  * no action to be taken. You must provide a starting and ending parameter number
2018  * where the range of the list can be found, useful if you have a terminating
2019  * parameter as above which is actually not part of the list, or parameters
2020  * before the actual list as well. This code is used by many functions which
2021  * can function as "one to list" (see the RFC) */
2022
2023 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2024 {
2025         char plist[MAXBUF];
2026         char *param;
2027         char *pars[32];
2028         char blog[32][MAXBUF];
2029         char blog2[32][MAXBUF];
2030         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2031         char keystr[MAXBUF];
2032         char moo[MAXBUF];
2033
2034         for (int i = 0; i <32; i++)
2035                 strcpy(blog[i],"");
2036
2037         for (int i = 0; i <32; i++)
2038                 strcpy(blog2[i],"");
2039
2040         strcpy(moo,"");
2041         for (int i = 0; i <10; i++)
2042         {
2043                 if (!parameters[i])
2044                 {
2045                         parameters[i] = moo;
2046                 }
2047         }
2048         if (joins)
2049         {
2050                 if (pcnt > 1) /* we have a key to copy */
2051                 {
2052                         strlcpy(keystr,parameters[1],MAXBUF);
2053                 }
2054         }
2055
2056         if (!parameters[start])
2057         {
2058                 return 0;
2059         }
2060         if (!strchr(parameters[start],','))
2061         {
2062                 return 0;
2063         }
2064         strcpy(plist,"");
2065         for (int i = start; i <= end; i++)
2066         {
2067                 if (parameters[i])
2068                 {
2069                         strlcat(plist,parameters[i],MAXBUF);
2070                 }
2071         }
2072
2073         j = 0;
2074         param = plist;
2075
2076         t = strlen(plist);
2077         for (int i = 0; i < t; i++)
2078         {
2079                 if (plist[i] == ',')
2080                 {
2081                         plist[i] = '\0';
2082                         strlcpy(blog[j++],param,MAXBUF);
2083                         param = plist+i+1;
2084                         if (j>20)
2085                         {
2086                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2087                                 return 1;
2088                         }
2089                 }
2090         }
2091         strlcpy(blog[j++],param,MAXBUF);
2092         total = j;
2093
2094         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2095         {
2096                 strcat(keystr,",");
2097         }
2098
2099         if ((joins) && (keystr))
2100         {
2101                 if (strchr(keystr,','))
2102                 {
2103                         j = 0;
2104                         param = keystr;
2105                         t2 = strlen(keystr);
2106                         for (int i = 0; i < t2; i++)
2107                         {
2108                                 if (keystr[i] == ',')
2109                                 {
2110                                         keystr[i] = '\0';
2111                                         strlcpy(blog2[j++],param,MAXBUF);
2112                                         param = keystr+i+1;
2113                                 }
2114                         }
2115                         strlcpy(blog2[j++],param,MAXBUF);
2116                         total2 = j;
2117                 }
2118         }
2119
2120         for (j = 0; j < total; j++)
2121         {
2122                 if (blog[j])
2123                 {
2124                         pars[0] = blog[j];
2125                 }
2126                 for (q = end; q < pcnt-1; q++)
2127                 {
2128                         if (parameters[q+1])
2129                         {
2130                                 pars[q-end+1] = parameters[q+1];
2131                         }
2132                 }
2133                 if ((joins) && (parameters[1]))
2134                 {
2135                         if (pcnt > 1)
2136                         {
2137                                 pars[1] = blog2[j];
2138                         }
2139                         else
2140                         {
2141                                 pars[1] = NULL;
2142                         }
2143                 }
2144                 /* repeatedly call the function with the hacked parameter list */
2145                 if ((joins) && (pcnt > 1))
2146                 {
2147                         if (pars[1])
2148                         {
2149                                 // pars[1] already set up and containing key from blog2[j]
2150                                 fn(pars,2,u);
2151                         }
2152                         else
2153                         {
2154                                 pars[1] = parameters[1];
2155                                 fn(pars,2,u);
2156                         }
2157                 }
2158                 else
2159                 {
2160                         fn(pars,pcnt-(end-start),u);
2161                 }
2162         }
2163
2164         return 1;
2165 }
2166
2167
2168
2169 void kill_link(userrec *user,const char* r)
2170 {
2171         user_hash::iterator iter = clientlist.find(user->nick);
2172
2173         char reason[MAXBUF];
2174
2175         strncpy(reason,r,MAXBUF);
2176
2177         if (strlen(reason)>MAXQUIT)
2178         {
2179                 reason[MAXQUIT-1] = '\0';
2180         }
2181
2182         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2183         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2184         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2185
2186         if (user->registered == 7) {
2187                 FOREACH_MOD OnUserQuit(user);
2188                 WriteCommonExcept(user,"QUIT :%s",reason);
2189
2190                 // Q token must go to ALL servers!!!
2191                 char buffer[MAXBUF];
2192                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2193                 NetSendToAll(buffer);
2194         }
2195
2196         FOREACH_MOD OnUserDisconnect(user);
2197
2198         if (user->fd > -1)
2199         {
2200                 FOREACH_MOD OnRawSocketClose(user->fd);
2201 #ifdef USE_KQUEUE
2202                 struct kevent ke;
2203                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2204                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2205                 if (i == -1)
2206                 {
2207                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2208                 }
2209 #endif
2210                 shutdown(user->fd,2);
2211                 close(user->fd);
2212         }
2213
2214         if (user->registered == 7) {
2215                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2216                 AddWhoWas(user);
2217         }
2218
2219         if (user->registered == 7) {
2220                 purge_empty_chans(user);
2221         }
2222
2223         if (iter != clientlist.end())
2224         {
2225                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2226                 if (user->fd > -1)
2227                         fd_ref_table[user->fd] = NULL;
2228                 delete user;
2229                 clientlist.erase(iter);
2230         }
2231 }
2232
2233 void kill_link_silent(userrec *user,const char* r)
2234 {
2235         user_hash::iterator iter = clientlist.find(user->nick);
2236
2237         char reason[MAXBUF];
2238
2239         strncpy(reason,r,MAXBUF);
2240
2241         if (strlen(reason)>MAXQUIT)
2242         {
2243                 reason[MAXQUIT-1] = '\0';
2244         }
2245
2246         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2247         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2248         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2249
2250         if (user->registered == 7) {
2251                 FOREACH_MOD OnUserQuit(user);
2252                 WriteCommonExcept(user,"QUIT :%s",reason);
2253
2254                 // Q token must go to ALL servers!!!
2255                 char buffer[MAXBUF];
2256                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2257                 NetSendToAll(buffer);
2258         }
2259
2260         FOREACH_MOD OnUserDisconnect(user);
2261
2262         if (user->fd > -1)
2263         {
2264                 FOREACH_MOD OnRawSocketClose(user->fd);
2265 #ifdef USE_KQUEUE
2266                 struct kevent ke;
2267                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2268                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2269                 if (i == -1)
2270                 {
2271                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2272                 }
2273 #endif
2274                 shutdown(user->fd,2);
2275                 close(user->fd);
2276         }
2277
2278         if (user->registered == 7) {
2279                 purge_empty_chans(user);
2280         }
2281
2282         if (iter != clientlist.end())
2283         {
2284                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2285                 if (user->fd > -1)
2286                         fd_ref_table[user->fd] = NULL;
2287                 delete user;
2288                 clientlist.erase(iter);
2289         }
2290 }
2291
2292
2293
2294 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2295
2296 char* Passwd(userrec *user)
2297 {
2298         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2299         {
2300                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2301                 {
2302                         return i->pass;
2303                 }
2304         }
2305         return "";
2306 }
2307
2308 bool IsDenied(userrec *user)
2309 {
2310         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2311         {
2312                 if (match(user->host,i->host) && (i->type == CC_DENY))
2313                 {
2314                         return true;
2315                 }
2316         }
2317         return false;
2318 }
2319
2320
2321
2322
2323 /* sends out an error notice to all connected clients (not to be used
2324  * lightly!) */
2325
2326 void send_error(char *s)
2327 {
2328         log(DEBUG,"send_error: %s",s);
2329         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2330         {
2331                 if (isnick(i->second->nick))
2332                 {
2333                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2334                 }
2335                 else
2336                 {
2337                         // fix - unregistered connections receive ERROR, not NOTICE
2338                         Write(i->second->fd,"ERROR :%s",s);
2339                 }
2340         }
2341 }
2342
2343 void Error(int status)
2344 {
2345         signal (SIGALRM, SIG_IGN);
2346         signal (SIGPIPE, SIG_IGN);
2347         signal (SIGTERM, SIG_IGN);
2348         signal (SIGABRT, SIG_IGN);
2349         signal (SIGSEGV, SIG_IGN);
2350         signal (SIGURG, SIG_IGN);
2351         signal (SIGKILL, SIG_IGN);
2352         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2353         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2354         Exit(status);
2355 }
2356
2357
2358 int main(int argc, char** argv)
2359 {
2360         Start();
2361         srand(time(NULL));
2362         log(DEBUG,"*** InspIRCd starting up!");
2363         if (!FileExists(CONFIG_FILE))
2364         {
2365                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2366                 log(DEFAULT,"main: no config");
2367                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2368                 Exit(ERROR);
2369         }
2370         if (argc > 1) {
2371                 for (int i = 1; i < argc; i++)
2372                 {
2373                         if (!strcmp(argv[i],"-nofork")) {
2374                                 nofork = true;
2375                         }
2376                         if (!strcmp(argv[i],"-wait")) {
2377                                 sleep(6);
2378                         }
2379                         if (!strcmp(argv[i],"-nolimit")) {
2380                                 unlimitcore = true;
2381                         }
2382                 }
2383         }
2384         strlcpy(MyExecutable,argv[0],MAXBUF);
2385
2386         // initialize the lowercase mapping table
2387         for (int cn = 0; cn < 256; cn++)
2388                 lowermap[cn] = cn;
2389         // lowercase the uppercase chars
2390         for (int cn = 65; cn < 91; cn++)
2391                 lowermap[cn] = tolower(cn);
2392         // now replace the specific chars for scandanavian comparison
2393         lowermap['['] = '{';
2394         lowermap[']'] = '}';
2395         lowermap['\\'] = '|';
2396
2397         if (InspIRCd(argv,argc) == ERROR)
2398         {
2399                 log(DEFAULT,"main: daemon function bailed");
2400                 printf("ERROR: could not initialise. Shutting down.\n");
2401                 Exit(ERROR);
2402         }
2403         Exit(TRUE);
2404         return 0;
2405 }
2406
2407 template<typename T> inline string ConvToStr(const T &in)
2408 {
2409         stringstream tmp;
2410         if (!(tmp << in)) return string();
2411         return tmp.str();
2412 }
2413
2414 /* re-allocates a nick in the user_hash after they change nicknames,
2415  * returns a pointer to the new user as it may have moved */
2416
2417 userrec* ReHashNick(char* Old, char* New)
2418 {
2419         //user_hash::iterator newnick;
2420         user_hash::iterator oldnick = clientlist.find(Old);
2421
2422         log(DEBUG,"ReHashNick: %s %s",Old,New);
2423
2424         if (!strcasecmp(Old,New))
2425         {
2426                 log(DEBUG,"old nick is new nick, skipping");
2427                 return oldnick->second;
2428         }
2429
2430         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2431
2432         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2433
2434         clientlist[New] = new userrec();
2435         clientlist[New] = oldnick->second;
2436         clientlist.erase(oldnick);
2437
2438         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2439
2440         return clientlist[New];
2441 }
2442
2443 /* adds or updates an entry in the whowas list */
2444 void AddWhoWas(userrec* u)
2445 {
2446         user_hash::iterator iter = whowas.find(u->nick);
2447         userrec *a = new userrec();
2448         strlcpy(a->nick,u->nick,NICKMAX);
2449         strlcpy(a->ident,u->ident,64);
2450         strlcpy(a->dhost,u->dhost,256);
2451         strlcpy(a->host,u->host,256);
2452         strlcpy(a->fullname,u->fullname,128);
2453         strlcpy(a->server,u->server,256);
2454         a->signon = u->signon;
2455
2456         /* MAX_WHOWAS:   max number of /WHOWAS items
2457          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2458          *               can be replaced by a newer one
2459          */
2460
2461         if (iter == whowas.end())
2462         {
2463                 if (whowas.size() == WHOWAS_MAX)
2464                 {
2465                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2466                         {
2467                                 // 3600 seconds in an hour ;)
2468                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2469                                 {
2470                                         if (i->second) delete i->second;
2471                                         i->second = a;
2472                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2473                                         return;
2474                                 }
2475                         }
2476                 }
2477                 else
2478                 {
2479                         log(DEBUG,"added fresh WHOWAS entry");
2480                         whowas[a->nick] = a;
2481                 }
2482         }
2483         else
2484         {
2485                 log(DEBUG,"updated WHOWAS entry");
2486                 if (iter->second) delete iter->second;
2487                 iter->second = a;
2488         }
2489 }
2490
2491
2492 /* add a client connection to the sockets list */
2493 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2494 {
2495         string tempnick;
2496         char tn2[MAXBUF];
2497         user_hash::iterator iter;
2498
2499         tempnick = ConvToStr(socket) + "-unknown";
2500         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
2501
2502         iter = clientlist.find(tempnick);
2503
2504         // fix by brain.
2505         // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
2506         // using one as a registered connection. As theyre per fd, we can also safely assume
2507         // that we wont have collisions. Therefore, if the nick exists in the list, its only
2508         // used by a dead socket, erase the iterator so that the new client may reclaim it.
2509         // this was probably the cause of 'server ignores me when i hammer it with reconnects'
2510         // issue in earlier alphas/betas
2511         if (iter != clientlist.end())
2512         {
2513                 clientlist.erase(iter);
2514         }
2515
2516         /*
2517          * It is OK to access the value here this way since we know
2518          * it exists, we just created it above.
2519          *
2520          * At NO other time should you access a value in a map or a
2521          * hash_map this way.
2522          */
2523         clientlist[tempnick] = new userrec();
2524
2525         NonBlocking(socket);
2526         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
2527
2528         clientlist[tempnick]->fd = socket;
2529         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2530         strncpy(clientlist[tempnick]->host, host,160);
2531         strncpy(clientlist[tempnick]->dhost, host,160);
2532         strncpy(clientlist[tempnick]->server, ServerName,256);
2533         strncpy(clientlist[tempnick]->ident, "unknown",12);
2534         clientlist[tempnick]->registered = 0;
2535         clientlist[tempnick]->signon = TIME+dns_timeout;
2536         clientlist[tempnick]->lastping = 1;
2537         clientlist[tempnick]->port = port;
2538         strncpy(clientlist[tempnick]->ip,ip,32);
2539
2540         // set the registration timeout for this user
2541         unsigned long class_regtimeout = 90;
2542         int class_flood = 0;
2543         long class_threshold = 5;
2544
2545         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2546         {
2547                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2548                 {
2549                         class_regtimeout = (unsigned long)i->registration_timeout;
2550                         class_flood = i->flood;
2551                         clientlist[tempnick]->pingmax = i->pingtime;
2552                         class_threshold = i->threshold;
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
2562         for (int i = 0; i < MAXCHANS; i++)
2563         {
2564                 clientlist[tempnick]->chans[i].channel = NULL;
2565                 clientlist[tempnick]->chans[i].uc_modes = 0;
2566         }
2567
2568         if (clientlist.size() == MAXCLIENTS)
2569         {
2570                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2571                 return;
2572         }
2573
2574         // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
2575         // its a pretty big but for the moment valid assumption:
2576         // file descriptors are handed out starting at 0, and are recycled as theyre freed.
2577         // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
2578         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
2579         // which for the time being is a physical impossibility (even the largest networks dont have more
2580         // than about 10,000 users on ONE server!)
2581         if (socket > 65535)
2582         {
2583                 kill_link(clientlist[tempnick],"Server is full");
2584                 return;
2585         }
2586
2587
2588         char* e = matches_exception(ip);
2589         if (!e)
2590         {
2591                 char* r = matches_zline(ip);
2592                 if (r)
2593                 {
2594                         char reason[MAXBUF];
2595                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2596                         kill_link(clientlist[tempnick],reason);
2597                         return;
2598                 }
2599         }
2600         fd_ref_table[socket] = clientlist[tempnick];
2601
2602 #ifdef USE_KQUEUE
2603         struct kevent ke;
2604         log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);
2605         EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL);
2606         int i = kevent(kq, &ke, 1, 0, 0, NULL);
2607         if (i == -1)
2608         {
2609                 switch (errno)
2610                 {
2611                         case EACCES:
2612                                 log(DEBUG,"kqueue: EACCES");
2613                         break;
2614                         case EFAULT:
2615                                 log(DEBUG,"kqueue: EFAULT");
2616                         break;
2617                         case EBADF:
2618                                 log(DEBUG,"kqueue: EBADF=%d",ke.ident);
2619                         break;
2620                         case EINTR:
2621                                 log(DEBUG,"kqueue: EINTR");
2622                         break;
2623                         case EINVAL:
2624                                 log(DEBUG,"kqueue: EINVAL");
2625                         break;
2626                         case ENOENT:
2627                                 log(DEBUG,"kqueue: ENOENT");
2628                         break;
2629                         case ENOMEM:
2630                                 log(DEBUG,"kqueue: ENOMEM");
2631                         break;
2632                         case ESRCH:
2633                                 log(DEBUG,"kqueue: ESRCH");
2634                         break;
2635                         default:
2636                                 log(DEBUG,"kqueue: UNKNOWN!");
2637                         break;
2638                 }
2639                 log(DEBUG,"kqueue: Failed to add user to queue!");
2640         }
2641
2642 #endif
2643 }
2644
2645 // this function counts all users connected, wether they are registered or NOT.
2646 int usercnt(void)
2647 {
2648         return clientlist.size();
2649 }
2650
2651 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2652 int registered_usercount(void)
2653 {
2654         int c = 0;
2655         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2656         {
2657                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2658         }
2659         return c;
2660 }
2661
2662 int usercount_invisible(void)
2663 {
2664         int c = 0;
2665
2666         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2667         {
2668                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2669         }
2670         return c;
2671 }
2672
2673 int usercount_opers(void)
2674 {
2675         int c = 0;
2676
2677         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2678         {
2679                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2680         }
2681         return c;
2682 }
2683
2684 int usercount_unknown(void)
2685 {
2686         int c = 0;
2687
2688         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2689         {
2690                 if ((i->second->fd) && (i->second->registered != 7))
2691                         c++;
2692         }
2693         return c;
2694 }
2695
2696 long chancount(void)
2697 {
2698         return chanlist.size();
2699 }
2700
2701 long count_servs(void)
2702 {
2703         int c = 0;
2704         for (int i = 0; i < 32; i++)
2705         {
2706                 if (me[i] != NULL)
2707                 {
2708                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2709                         {
2710                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2711                                 {
2712                                         c++;
2713                                 }
2714                         }
2715                 }
2716         }
2717         return c;
2718 }
2719
2720 long servercount(void)
2721 {
2722         return count_servs()+1;
2723 }
2724
2725 long local_count()
2726 {
2727         int c = 0;
2728         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2729         {
2730                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2731         }
2732         return c;
2733 }
2734
2735
2736 void ShowMOTD(userrec *user)
2737 {
2738         char buf[65536];
2739         std::string WholeMOTD = "";
2740         if (!MOTD.size())
2741         {
2742                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2743                 return;
2744         }
2745         snprintf(buf,65535,":%s 375 %s :- %s message of the day\r\n", ServerName, user->nick, ServerName);
2746         WholeMOTD = WholeMOTD + buf;
2747         for (int i = 0; i != MOTD.size(); i++)
2748         {
2749                 snprintf(buf,65535,":%s 372 %s :- %s\r\n", ServerName, user->nick, MOTD[i].c_str());
2750                 WholeMOTD = WholeMOTD + buf;
2751         }
2752         snprintf(buf,65535,":%s 376 %s :End of message of the day.\r\n", ServerName, user->nick);
2753         WholeMOTD = WholeMOTD + buf;
2754         // only one write operation
2755         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2756         statsSent += WholeMOTD.length();
2757 }
2758
2759 void ShowRULES(userrec *user)
2760 {
2761         if (!RULES.size())
2762         {
2763                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2764                 return;
2765         }
2766         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2767         for (int i = 0; i != RULES.size(); i++)
2768         {
2769                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2770         }
2771         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2772 }
2773
2774 /* shows the message of the day, and any other on-logon stuff */
2775 void FullConnectUser(userrec* user)
2776 {
2777         statsConnects++;
2778         user->idle_lastmsg = TIME;
2779         log(DEBUG,"ConnectUser: %s",user->nick);
2780
2781         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
2782         {
2783                 kill_link(user,"Invalid password");
2784                 return;
2785         }
2786         if (IsDenied(user))
2787         {
2788                 kill_link(user,"Unauthorised connection");
2789                 return;
2790         }
2791
2792         char match_against[MAXBUF];
2793         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2794         char* e = matches_exception(match_against);
2795         if (!e)
2796         {
2797                 char* r = matches_gline(match_against);
2798                 if (r)
2799                 {
2800                         char reason[MAXBUF];
2801                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2802                         kill_link_silent(user,reason);
2803                         return;
2804                 }
2805                 r = matches_kline(user->host);
2806                 if (r)
2807                 {
2808                         char reason[MAXBUF];
2809                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2810                         kill_link_silent(user,reason);
2811                         return;
2812                 }
2813         }
2814
2815         // fix by brain: move this below the xline checks to prevent spurious quits going onto the net that dont belong
2816         user->registered = 7;
2817
2818         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2819         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2820         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2821         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2822         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2823         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2824         std::stringstream v;
2825         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2826         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2827         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2828         v << Network;
2829         std::string data005 = v.str();
2830         FOREACH_MOD On005Numeric(data005);
2831         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2832         // so i'd better split it :)
2833         std::stringstream out(data005);
2834         std::string token = "";
2835         std::string line5 = "";
2836         int token_counter = 0;
2837         while (!out.eof())
2838         {
2839                 out >> token;
2840                 line5 = line5 + token + " ";
2841                 token_counter++;
2842                 if ((token_counter >= 13) || (out.eof() == true))
2843                 {
2844                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2845                         line5 = "";
2846                         token_counter = 0;
2847                 }
2848         }
2849         ShowMOTD(user);
2850
2851         char buffer[MAXBUF];
2852         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);
2853         NetSendToAll(buffer);
2854
2855         // fix by brain: these should be AFTER the N token, so other servers know what the HELL we're on about... :)
2856         FOREACH_MOD OnUserConnect(user);
2857         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
2858 }
2859
2860
2861 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2862 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2863 // registration timeout maximum seconds)
2864 bool AllModulesReportReady(userrec* user)
2865 {
2866         for (int i = 0; i <= MODCOUNT; i++)
2867         {
2868                 int res = modules[i]->OnCheckReady(user);
2869                         if (!res)
2870                                 return false;
2871         }
2872         return true;
2873 }
2874
2875 /* shows the message of the day, and any other on-logon stuff */
2876 void ConnectUser(userrec *user)
2877 {
2878         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2879         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2880         {
2881                 FullConnectUser(user);
2882         }
2883 }
2884
2885 std::string GetVersionString()
2886 {
2887         char Revision[] = "$Revision$";
2888         char versiondata[MAXBUF];
2889         char *s1 = Revision;
2890         char *savept;
2891         char *v2 = strtok_r(s1," ",&savept);
2892         s1 = savept;
2893         v2 = strtok_r(s1," ",&savept);
2894         s1 = savept;
2895 #ifdef USE_KQUEUE
2896         char socketengine[] = "kqueue";
2897 #else
2898         char socketengine[] = "select";
2899 #endif
2900         snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu) [SE=%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,socketengine);
2901         return versiondata;
2902 }
2903
2904 void handle_version(char **parameters, int pcnt, userrec *user)
2905 {
2906         if (!pcnt)
2907         {
2908                 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2909         }
2910         else
2911         {
2912                 if (!strcmp(parameters[0],"*"))
2913                 {
2914                         for (int j = 0; j < 32; j++)
2915                         {
2916                                 if (me[j] != NULL)
2917                                 {
2918                                         for (int x = 0; x < me[j]->connectors.size(); x++)
2919                                         {
2920                                                 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());
2921                                         }
2922                                 }
2923                         }
2924                         return;
2925                 }
2926                 if (match(ServerName,parameters[0]))
2927                 {
2928                         WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2929                         return;
2930                 }
2931                 bool displayed = false, found = false;
2932                 for (int j = 0; j < 32; j++)
2933                 {
2934                         if (me[j] != NULL)
2935                         {
2936                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2937                                 {
2938                                         if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
2939                                         {
2940                                                 found = true;
2941                                                 if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
2942                                                 {
2943                                                         displayed = true;
2944                                                         WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
2945                                                 }
2946                                         }
2947                                 }
2948                         }
2949                 }
2950                 if ((!displayed) && (found))
2951                 {
2952                         WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
2953                         return;
2954                 }
2955                 if (!found)
2956                 {
2957                         WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2958                 }
2959         }
2960         return;
2961 }
2962
2963
2964 // calls a handler function for a command
2965
2966 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2967 {
2968                 for (int i = 0; i < cmdlist.size(); i++)
2969                 {
2970                         if (!strcasecmp(cmdlist[i].command,commandname))
2971                         {
2972                                 if (cmdlist[i].handler_function)
2973                                 {
2974                                         if (pcnt>=cmdlist[i].min_params)
2975                                         {
2976                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2977                                                 {
2978                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2979                                                 }
2980                                         }
2981                                 }
2982                         }
2983                 }
2984 }
2985
2986 void DoSplitEveryone()
2987 {
2988         bool go_again = true;
2989         while (go_again)
2990         {
2991                 go_again = false;
2992                 for (int i = 0; i < 32; i++)
2993                 {
2994                         if (me[i] != NULL)
2995                         {
2996                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2997                                 {
2998                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2999                                         {
3000                                                 j->routes.clear();
3001                                                 j->CloseConnection();
3002                                                 me[i]->connectors.erase(j);
3003                                                 go_again = true;
3004                                                 break;
3005                                         }
3006                                 }
3007                         }
3008                 }
3009         }
3010         log(DEBUG,"Removed server. Will remove clients...");
3011         // iterate through the userlist and remove all users on this server.
3012         // because we're dealing with a mesh, we dont have to deal with anything
3013         // "down-route" from this server (nice huh)
3014         go_again = true;
3015         char reason[MAXBUF];
3016         while (go_again)
3017         {
3018                 go_again = false;
3019                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3020                 {
3021                         if (strcasecmp(u->second->server,ServerName))
3022                         {
3023                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
3024                                 kill_link(u->second,reason);
3025                                 go_again = true;
3026                                 break;
3027                         }
3028                 }
3029         }
3030 }
3031
3032
3033
3034 char islast(const char* s)
3035 {
3036         char c = '`';
3037         for (int j = 0; j < 32; j++)
3038         {
3039                 if (me[j] != NULL)
3040                 {
3041                         for (int k = 0; k < me[j]->connectors.size(); k++)
3042                         {
3043                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3044                                 {
3045                                         c = '|';
3046                                 }
3047                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3048                                 {
3049                                         c = '`';
3050                                 }
3051                         }
3052                 }
3053         }
3054         return c;
3055 }
3056
3057 long map_count(const char* s)
3058 {
3059         int c = 0;
3060         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3061         {
3062                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
3063         }
3064         return c;
3065 }
3066
3067
3068 void force_nickchange(userrec* user,const char* newnick)
3069 {
3070         char nick[MAXBUF];
3071         int MOD_RESULT = 0;
3072
3073         strcpy(nick,"");
3074
3075         FOREACH_RESULT(OnUserPreNick(user,newnick));
3076         if (MOD_RESULT) {
3077                 statsCollisions++;
3078                 kill_link(user,"Nickname collision");
3079                 return;
3080         }
3081         if (matches_qline(newnick))
3082         {
3083                 statsCollisions++;
3084                 kill_link(user,"Nickname collision");
3085                 return;
3086         }
3087
3088         if (user)
3089         {
3090                 if (newnick)
3091                 {
3092                         strncpy(nick,newnick,MAXBUF);
3093                 }
3094                 if (user->registered == 7)
3095                 {
3096                         char* pars[1];
3097                         pars[0] = nick;
3098                         handle_nick(pars,1,user);
3099                 }
3100         }
3101 }
3102
3103
3104 int process_parameters(char **command_p,char *parameters)
3105 {
3106         int j = 0;
3107         int q = strlen(parameters);
3108         if (!q)
3109         {
3110                 /* no parameters, command_p invalid! */
3111                 return 0;
3112         }
3113         if (parameters[0] == ':')
3114         {
3115                 command_p[0] = parameters+1;
3116                 return 1;
3117         }
3118         if (q)
3119         {
3120                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
3121                 {
3122                         /* only one parameter */
3123                         command_p[0] = parameters;
3124                         if (parameters[0] == ':')
3125                         {
3126                                 if (strchr(parameters,' ') != NULL)
3127                                 {
3128                                         command_p[0]++;
3129                                 }
3130                         }
3131                         return 1;
3132                 }
3133         }
3134         command_p[j++] = parameters;
3135         for (int i = 0; i <= q; i++)
3136         {
3137                 if (parameters[i] == ' ')
3138                 {
3139                         command_p[j++] = parameters+i+1;
3140                         parameters[i] = '\0';
3141                         if (command_p[j-1][0] == ':')
3142                         {
3143                                 *command_p[j-1]++; /* remove dodgy ":" */
3144                                 break;
3145                                 /* parameter like this marks end of the sequence */
3146                         }
3147                 }
3148         }
3149         return j; /* returns total number of items in the list */
3150 }
3151
3152 void process_command(userrec *user, char* cmd)
3153 {
3154         char *parameters;
3155         char *command;
3156         char *command_p[127];
3157         char p[MAXBUF], temp[MAXBUF];
3158         int j, items, cmd_found;
3159
3160         for (int i = 0; i < 127; i++)
3161                 command_p[i] = NULL;
3162
3163         if (!user)
3164         {
3165                 return;
3166         }
3167         if (!cmd)
3168         {
3169                 return;
3170         }
3171         if (!cmd[0])
3172         {
3173                 return;
3174         }
3175
3176         int total_params = 0;
3177         if (strlen(cmd)>2)
3178         {
3179                 for (int q = 0; q < strlen(cmd)-1; q++)
3180                 {
3181                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
3182                         {
3183                                 total_params++;
3184                                 // found a 'trailing', we dont count them after this.
3185                                 break;
3186                         }
3187                         if (cmd[q] == ' ')
3188                                 total_params++;
3189                 }
3190         }
3191
3192         // another phidjit bug...
3193         if (total_params > 126)
3194         {
3195                 *(strchr(cmd,' ')) = '\0';
3196                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
3197                 return;
3198         }
3199
3200         strlcpy(temp,cmd,MAXBUF);
3201
3202         std::string tmp = cmd;
3203         for (int i = 0; i <= MODCOUNT; i++)
3204         {
3205                 std::string oldtmp = tmp;
3206                 modules[i]->OnServerRaw(tmp,true,user);
3207                 if (oldtmp != tmp)
3208                 {
3209                         log(DEBUG,"A Module changed the input string!");
3210                         log(DEBUG,"New string: %s",tmp.c_str());
3211                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3212                         break;
3213                 }
3214         }
3215         strlcpy(cmd,tmp.c_str(),MAXBUF);
3216         strlcpy(temp,cmd,MAXBUF);
3217
3218         if (!strchr(cmd,' '))
3219         {
3220                 /* no parameters, lets skip the formalities and not chop up
3221                  * the string */
3222                 log(DEBUG,"About to preprocess command with no params");
3223                 items = 0;
3224                 command_p[0] = NULL;
3225                 parameters = NULL;
3226                 for (int i = 0; i <= strlen(cmd); i++)
3227                 {
3228                         cmd[i] = toupper(cmd[i]);
3229                 }
3230                 command = cmd;
3231         }
3232         else
3233         {
3234                 strcpy(cmd,"");
3235                 j = 0;
3236                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3237                 for (int i = 0; i < strlen(temp); i++)
3238                 {
3239                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3240                         {
3241                                 cmd[j++] = temp[i];
3242                                 cmd[j] = 0;
3243                         }
3244                 }
3245                 /* split the full string into a command plus parameters */
3246                 parameters = p;
3247                 strcpy(p," ");
3248                 command = cmd;
3249                 if (strchr(cmd,' '))
3250                 {
3251                         for (int i = 0; i <= strlen(cmd); i++)
3252                         {
3253                                 /* capitalise the command ONLY, leave params intact */
3254                                 cmd[i] = toupper(cmd[i]);
3255                                 /* are we nearly there yet?! :P */
3256                                 if (cmd[i] == ' ')
3257                                 {
3258                                         command = cmd;
3259                                         parameters = cmd+i+1;
3260                                         cmd[i] = '\0';
3261                                         break;
3262                                 }
3263                         }
3264                 }
3265                 else
3266                 {
3267                         for (int i = 0; i <= strlen(cmd); i++)
3268                         {
3269                                 cmd[i] = toupper(cmd[i]);
3270                         }
3271                 }
3272
3273         }
3274         cmd_found = 0;
3275
3276         if (strlen(command)>MAXCOMMAND)
3277         {
3278                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3279                 return;
3280         }
3281
3282         for (int x = 0; x < strlen(command); x++)
3283         {
3284                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3285                 {
3286                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3287                         {
3288                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3289                                 {
3290                                         statsUnknown++;
3291                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3292                                         return;
3293                                 }
3294                         }
3295                 }
3296         }
3297
3298         for (int i = 0; i != cmdlist.size(); i++)
3299         {
3300                 if (cmdlist[i].command[0])
3301                 {
3302                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3303                         {
3304                                 if (parameters)
3305                                 {
3306                                         if (parameters[0])
3307                                         {
3308                                                 items = process_parameters(command_p,parameters);
3309                                         }
3310                                         else
3311                                         {
3312                                                 items = 0;
3313                                                 command_p[0] = NULL;
3314                                         }
3315                                 }
3316                                 else
3317                                 {
3318                                         items = 0;
3319                                         command_p[0] = NULL;
3320                                 }
3321
3322                                 if (user)
3323                                 {
3324                                         /* activity resets the ping pending timer */
3325                                         user->nping = TIME + user->pingmax;
3326                                         if ((items) < cmdlist[i].min_params)
3327                                         {
3328                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3329                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3330                                                 return;
3331                                         }
3332                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3333                                         {
3334                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3335                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3336                                                 cmd_found = 1;
3337                                                 return;
3338                                         }
3339                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3340                                         {
3341                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3342                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3343                                                 cmd_found = 1;
3344                                                 return;
3345                                         }
3346                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3347                                          * deny command! */
3348                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3349                                         {
3350                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3351                                                 {
3352                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3353                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3354                                                         return;
3355                                                 }
3356                                         }
3357                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3358                                         {
3359                                                 char* mycmd;
3360                                                 char* savept2;
3361                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3362                                                 while (mycmd)
3363                                                 {
3364                                                         if (!strcasecmp(mycmd,command))
3365                                                         {
3366                                                                 // command is disabled!
3367                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3368                                                                 return;
3369                                                         }
3370                                                         mycmd = strtok_r(NULL," ",&savept2);
3371                                                 }
3372
3373
3374                                         }
3375                                         if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
3376                                         {
3377                                                 if (cmdlist[i].handler_function)
3378                                                 {
3379
3380                                                         /* ikky /stats counters */
3381                                                         if (temp)
3382                                                         {
3383                                                                 cmdlist[i].use_count++;
3384                                                                 cmdlist[i].total_bytes+=strlen(temp);
3385                                                         }
3386
3387                                                         int MOD_RESULT = 0;
3388                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3389                                                         if (MOD_RESULT == 1) {
3390                                                                 return;
3391                                                         }
3392
3393                                                         /* WARNING: nothing may come after the
3394                                                          * command handler call, as the handler
3395                                                          * may free the user structure! */
3396
3397                                                         cmdlist[i].handler_function(command_p,items,user);
3398                                                 }
3399                                                 return;
3400                                         }
3401                                         else
3402                                         {
3403                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3404                                                 return;
3405                                         }
3406                                 }
3407                                 cmd_found = 1;
3408                         }
3409                 }
3410         }
3411         if ((!cmd_found) && (user))
3412         {
3413                 statsUnknown++;
3414                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3415         }
3416 }
3417
3418
3419 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3420 {
3421         command_t comm;
3422         /* create the command and push it onto the table */
3423         strlcpy(comm.command,cmd,MAXBUF);
3424         strlcpy(comm.source,source,MAXBUF);
3425         comm.handler_function = f;
3426         comm.flags_needed = flags;
3427         comm.min_params = minparams;
3428         comm.use_count = 0;
3429         comm.total_bytes = 0;
3430         cmdlist.push_back(comm);
3431         log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
3432 }
3433
3434 bool removecommands(const char* source)
3435 {
3436         bool go_again = true;
3437         while (go_again)
3438         {
3439                 go_again = false;
3440                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3441                 {
3442                         if (!strcmp(i->source,source))
3443                         {
3444                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3445                                 cmdlist.erase(i);
3446                                 go_again = true;
3447                                 break;
3448                         }
3449                 }
3450         }
3451         return true;
3452 }
3453
3454 void SetupCommandTable(void)
3455 {
3456         createcommand("USER",handle_user,0,4,"<core>");
3457         createcommand("NICK",handle_nick,0,1,"<core>");
3458         createcommand("QUIT",handle_quit,0,0,"<core>");
3459         createcommand("VERSION",handle_version,0,0,"<core>");
3460         createcommand("PING",handle_ping,0,1,"<core>");
3461         createcommand("PONG",handle_pong,0,1,"<core>");
3462         createcommand("ADMIN",handle_admin,0,0,"<core>");
3463         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3464         createcommand("INFO",handle_info,0,0,"<core>");
3465         createcommand("TIME",handle_time,0,0,"<core>");
3466         createcommand("WHOIS",handle_whois,0,1,"<core>");
3467         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3468         createcommand("NOTICE",handle_notice,0,2,"<core>");
3469         createcommand("JOIN",handle_join,0,1,"<core>");
3470         createcommand("NAMES",handle_names,0,0,"<core>");
3471         createcommand("PART",handle_part,0,1,"<core>");
3472         createcommand("KICK",handle_kick,0,2,"<core>");
3473         createcommand("MODE",handle_mode,0,1,"<core>");
3474         createcommand("TOPIC",handle_topic,0,1,"<core>");
3475         createcommand("WHO",handle_who,0,1,"<core>");
3476         createcommand("MOTD",handle_motd,0,0,"<core>");
3477         createcommand("RULES",handle_rules,0,0,"<core>");
3478         createcommand("OPER",handle_oper,0,2,"<core>");
3479         createcommand("LIST",handle_list,0,0,"<core>");
3480         createcommand("DIE",handle_die,'o',1,"<core>");
3481         createcommand("RESTART",handle_restart,'o',1,"<core>");
3482         createcommand("KILL",handle_kill,'o',2,"<core>");
3483         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3484         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3485         createcommand("STATS",handle_stats,0,1,"<core>");
3486         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3487         createcommand("AWAY",handle_away,0,0,"<core>");
3488         createcommand("ISON",handle_ison,0,0,"<core>");
3489         createcommand("SUMMON",handle_summon,0,0,"<core>");
3490         createcommand("USERS",handle_users,0,0,"<core>");
3491         createcommand("INVITE",handle_invite,0,2,"<core>");
3492         createcommand("PASS",handle_pass,0,1,"<core>");
3493         createcommand("TRACE",handle_trace,'o',0,"<core>");
3494         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3495         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3496         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3497         createcommand("MODULES",handle_modules,0,0,"<core>");
3498         createcommand("LINKS",handle_links,0,0,"<core>");
3499         createcommand("MAP",handle_map,0,0,"<core>");
3500         createcommand("KLINE",handle_kline,'o',1,"<core>");
3501         createcommand("GLINE",handle_gline,'o',1,"<core>");
3502         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3503         createcommand("QLINE",handle_qline,'o',1,"<core>");
3504         createcommand("ELINE",handle_eline,'o',1,"<core>");
3505         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3506         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3507         createcommand("SERVER",handle_server,0,0,"<core>");
3508 }
3509
3510 void process_buffer(const char* cmdbuf,userrec *user)
3511 {
3512         if (!user)
3513         {
3514                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3515                 return;
3516         }
3517         char cmd[MAXBUF];
3518         if (!cmdbuf)
3519         {
3520                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3521                 return;
3522         }
3523         if (!cmdbuf[0])
3524         {
3525                 return;
3526         }
3527         while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
3528
3529         strlcpy(cmd,cmdbuf,MAXBUF);
3530         if (!cmd[0])
3531         {
3532                 return;
3533         }
3534         int sl = strlen(cmd)-1;
3535         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3536         {
3537                 cmd[sl] = '\0';
3538         }
3539         sl = strlen(cmd)-1;
3540         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3541         {
3542                 cmd[sl] = '\0';
3543         }
3544         sl = strlen(cmd)-1;
3545         while (cmd[sl] == ' ') // strip trailing spaces
3546         {
3547                 cmd[sl] = '\0';
3548                 sl = strlen(cmd)-1;
3549         }
3550
3551         if (!cmd[0])
3552         {
3553                 return;
3554         }
3555         log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
3556         tidystring(cmd);
3557         if ((user) && (cmd))
3558         {
3559                 process_command(user,cmd);
3560         }
3561 }
3562
3563 void DoSync(serverrec* serv, char* tcp_host)
3564 {
3565         char data[MAXBUF];
3566         log(DEBUG,"Sending sync");
3567         // send start of sync marker: Y <timestamp>
3568         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3569         // except the ones its receiving it from.
3570         snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
3571         serv->SendPacket(data,tcp_host);
3572         // send users and channels
3573
3574         NetSendMyRoutingTable();
3575
3576         // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
3577         for (int j = 0; j < 32; j++)
3578         {
3579                 if (me[j] != NULL)
3580                 {
3581                         for (int k = 0; k < me[j]->connectors.size(); k++)
3582                         {
3583                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3584                                 {
3585                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3586                                         serv->SendPacket(data,tcp_host);
3587                                 }
3588                         }
3589                 }
3590         }
3591
3592         // send our version for the remote side to cache
3593         snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
3594         serv->SendPacket(data,tcp_host);
3595
3596         // sync the users and channels, give the modules a look-in.
3597         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3598         {
3599                 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);
3600                 serv->SendPacket(data,tcp_host);
3601                 if (strchr(u->second->modes,'o'))
3602                 {
3603                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3604                         serv->SendPacket(data,tcp_host);
3605                 }
3606                 for (int i = 0; i <= MODCOUNT; i++)
3607                 {
3608                         string_list l = modules[i]->OnUserSync(u->second);
3609                         for (int j = 0; j < l.size(); j++)
3610                         {
3611                                 strlcpy(data,l[j].c_str(),MAXBUF);
3612                                 serv->SendPacket(data,tcp_host);
3613                         }
3614                 }
3615                 char* chl = chlist(u->second,u->second);
3616                 if (strcmp(chl,""))
3617                 {
3618                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
3619                         serv->SendPacket(data,tcp_host);
3620                 }
3621         }
3622         // send channel modes, topics etc...
3623         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3624         {
3625                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3626                 serv->SendPacket(data,tcp_host);
3627                 for (int i = 0; i <= MODCOUNT; i++)
3628                 {
3629                         string_list l = modules[i]->OnChannelSync(c->second);
3630                         for (int j = 0; j < l.size(); j++)
3631                         {
3632                                 strlcpy(data,l[j].c_str(),MAXBUF);
3633                                 serv->SendPacket(data,tcp_host);
3634                         }
3635                 }
3636                 if (c->second->topic[0])
3637                 {
3638                         snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3639                         serv->SendPacket(data,tcp_host);
3640                 }
3641                 // send current banlist
3642
3643                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3644                 {
3645                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3646                         serv->SendPacket(data,tcp_host);
3647                 }
3648         }
3649         // sync global zlines, glines, etc
3650         sync_xlines(serv,tcp_host);
3651
3652         snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
3653         serv->SendPacket(data,tcp_host);
3654         log(DEBUG,"Sent sync");
3655         // ircd sends its serverlist after the end of sync here
3656 }
3657
3658
3659 void NetSendMyRoutingTable()
3660 {
3661         // send out a line saying what is reachable to us.
3662         // E.g. if A is linked to B C and D, send out:
3663         // $ A B C D
3664         // if its only linked to B and D send out:
3665         // $ A B D
3666         // if it has no links, dont even send out the line at all.
3667         char buffer[MAXBUF];
3668         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3669         bool sendit = false;
3670         for (int i = 0; i < 32; i++)
3671         {
3672                 if (me[i] != NULL)
3673                 {
3674                         for (int j = 0; j < me[i]->connectors.size(); j++)
3675                         {
3676                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3677                                 {
3678                                         strlcat(buffer," ",MAXBUF);
3679                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3680                                         sendit = true;
3681                                 }
3682                         }
3683                 }
3684         }
3685         if (sendit)
3686                 NetSendToAll(buffer);
3687 }
3688
3689
3690 void DoSplit(const char* params)
3691 {
3692         bool go_again = true;
3693         while (go_again)
3694         {
3695                 go_again = false;
3696                 for (int i = 0; i < 32; i++)
3697                 {
3698                         if (me[i] != NULL)
3699                         {
3700                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3701                                 {
3702                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3703                                         {
3704                                                 j->routes.clear();
3705                                                 j->CloseConnection();
3706                                                 me[i]->connectors.erase(j);
3707                                                 go_again = true;
3708                                                 break;
3709                                         }
3710                                 }
3711                         }
3712                 }
3713         }
3714         log(DEBUG,"Removed server. Will remove clients...");
3715         // iterate through the userlist and remove all users on this server.
3716         // because we're dealing with a mesh, we dont have to deal with anything
3717         // "down-route" from this server (nice huh)
3718         go_again = true;
3719         char reason[MAXBUF];
3720         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3721         while (go_again)
3722         {
3723                 go_again = false;
3724                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3725                 {
3726                         if (!strcasecmp(u->second->server,params))
3727                         {
3728                                 kill_link(u->second,reason);
3729                                 go_again = true;
3730                                 break;
3731                         }
3732                 }
3733         }
3734 }
3735
3736 // removes a server. Will NOT remove its users!
3737
3738 void RemoveServer(const char* name)
3739 {
3740         bool go_again = true;
3741         while (go_again)
3742         {
3743                 go_again = false;
3744                 for (int i = 0; i < 32; i++)
3745                 {
3746                         if (me[i] != NULL)
3747                         {
3748                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3749                                 {
3750                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3751                                         {
3752                                                 j->routes.clear();
3753                                                 j->CloseConnection();
3754                                                 me[i]->connectors.erase(j);
3755                                                 go_again = true;
3756                                                 break;
3757                                         }
3758                                 }
3759                         }
3760                 }
3761         }
3762 }
3763
3764
3765 char MODERR[MAXBUF];
3766
3767 char* ModuleError()
3768 {
3769         return MODERR;
3770 }
3771
3772 void erase_factory(int j)
3773 {
3774         int v = 0;
3775         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3776         {
3777                 if (v == j)
3778                 {
3779                         factory.erase(t);
3780                         factory.push_back(NULL);
3781                         return;
3782                 }
3783                 v++;
3784         }
3785 }
3786
3787 void erase_module(int j)
3788 {
3789         int v1 = 0;
3790         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3791         {
3792                 if (v1 == j)
3793                 {
3794                         delete *m;
3795                         modules.erase(m);
3796                         modules.push_back(NULL);
3797                         break;
3798                 }
3799                 v1++;
3800         }
3801         int v2 = 0;
3802         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3803         {
3804                 if (v2 == j)
3805                 {
3806                        module_names.erase(v);
3807                        break;
3808                 }
3809                 v2++;
3810         }
3811
3812 }
3813
3814 bool UnloadModule(const char* filename)
3815 {
3816         std::string filename_str = filename;
3817         for (int j = 0; j != module_names.size(); j++)
3818         {
3819                 if (module_names[j] == filename_str)
3820                 {
3821                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3822                         {
3823                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3824                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3825                                 return false;
3826                         }
3827                         // found the module
3828                         log(DEBUG,"Deleting module...");
3829                         erase_module(j);
3830                         log(DEBUG,"Erasing module entry...");
3831                         erase_factory(j);
3832                         log(DEBUG,"Removing dependent commands...");
3833                         removecommands(filename);
3834                         log(DEFAULT,"Module %s unloaded",filename);
3835                         MODCOUNT--;
3836                         return true;
3837                 }
3838         }
3839         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3840         snprintf(MODERR,MAXBUF,"Module not loaded");
3841         return false;
3842 }
3843
3844 bool DirValid(char* dirandfile)
3845 {
3846         char work[MAXBUF];
3847         strlcpy(work,dirandfile,MAXBUF);
3848         int p = strlen(work);
3849         // we just want the dir
3850         while (strlen(work))
3851         {
3852                 if (work[p] == '/')
3853                 {
3854                         work[p] = '\0';
3855                         break;
3856                 }
3857                 work[p--] = '\0';
3858         }
3859         char buffer[MAXBUF], otherdir[MAXBUF];
3860         // Get the current working directory
3861         if( getcwd( buffer, MAXBUF ) == NULL )
3862                 return false;
3863         chdir(work);
3864         if( getcwd( otherdir, MAXBUF ) == NULL )
3865                 return false;
3866         chdir(buffer);
3867         if (strlen(otherdir) >= strlen(work))
3868         {
3869                 otherdir[strlen(work)] = '\0';
3870                 if (!strcmp(otherdir,work))
3871                 {
3872                         return true;
3873                 }
3874                 return false;
3875         }
3876         else return false;
3877 }
3878
3879 std::string GetFullProgDir(char** argv, int argc)
3880 {
3881         char work[MAXBUF];
3882         strlcpy(work,argv[0],MAXBUF);
3883         int p = strlen(work);
3884         // we just want the dir
3885         while (strlen(work))
3886         {
3887                 if (work[p] == '/')
3888                 {
3889                         work[p] = '\0';
3890                         break;
3891                 }
3892                 work[p--] = '\0';
3893         }
3894         char buffer[MAXBUF], otherdir[MAXBUF];
3895         // Get the current working directory
3896         if( getcwd( buffer, MAXBUF ) == NULL )
3897                 return "";
3898         chdir(work);
3899         if( getcwd( otherdir, MAXBUF ) == NULL )
3900                 return "";
3901         chdir(buffer);
3902         return otherdir;
3903 }
3904
3905 bool LoadModule(const char* filename)
3906 {
3907         char modfile[MAXBUF];
3908         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3909         std::string filename_str = filename;
3910         if (!DirValid(modfile))
3911         {
3912                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3913                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3914                 return false;
3915         }
3916         log(DEBUG,"Loading module: %s",modfile);
3917         if (FileExists(modfile))
3918         {
3919                 for (int j = 0; j < module_names.size(); j++)
3920                 {
3921                         if (module_names[j] == filename_str)
3922                         {
3923                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3924                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3925                                 return false;
3926                         }
3927                 }
3928                 ircd_module* a = new ircd_module(modfile);
3929                 factory[MODCOUNT+1] = a;
3930                 if (factory[MODCOUNT+1]->LastError())
3931                 {
3932                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3933                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3934                         MODCOUNT--;
3935                         return false;
3936                 }
3937                 if (factory[MODCOUNT+1]->factory)
3938                 {
3939                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3940                         modules[MODCOUNT+1] = m;
3941                         /* save the module and the module's classfactory, if
3942                          * this isnt done, random crashes can occur :/ */
3943                         module_names.push_back(filename);
3944                 }
3945                 else
3946                 {
3947                         log(DEFAULT,"Unable to load %s",modfile);
3948                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3949                         return false;
3950                 }
3951         }
3952         else
3953         {
3954                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3955                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3956                 return false;
3957         }
3958         MODCOUNT++;
3959         return true;
3960 }
3961
3962 int InspIRCd(char** argv, int argc)
3963 {
3964         struct sockaddr_in client,server;
3965         char addrs[MAXBUF][255];
3966         int incomingSockfd, result = TRUE;
3967         socklen_t length;
3968         int count = 0;
3969         int selectResult = 0, selectResult2 = 0;
3970         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3971         fd_set selectFds;
3972         timeval tv;
3973
3974         std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
3975         log_file = fopen(logpath.c_str(),"a+");
3976         if (!log_file)
3977         {
3978                 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
3979                 Exit(ERROR);
3980         }
3981         printf("Logging to %s...\n",logpath.c_str());
3982
3983         log(DEFAULT,"$Id$");
3984         if (geteuid() == 0)
3985         {
3986                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3987                 Exit(ERROR);
3988                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3989         }
3990         SetupCommandTable();
3991         log(DEBUG,"InspIRCd: startup: default command table set up");
3992
3993         ReadConfig(true,NULL);
3994         if (DieValue[0])
3995         {
3996                 printf("WARNING: %s\n\n",DieValue);
3997                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3998                 exit(0);
3999         }
4000         log(DEBUG,"InspIRCd: startup: read config");
4001
4002         int clientportcount = 0, serverportcount = 0;
4003
4004         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
4005         {
4006                 ConfValue("bind","port",count,configToken,&config_f);
4007                 ConfValue("bind","address",count,Addr,&config_f);
4008                 ConfValue("bind","type",count,Type,&config_f);
4009                 if (!strcmp(Type,"servers"))
4010                 {
4011                         char Default[MAXBUF];
4012                         strcpy(Default,"no");
4013                         ConfValue("bind","default",count,Default,&config_f);
4014                         if (strchr(Default,'y'))
4015                         {
4016                                 defaultRoute = serverportcount;
4017                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
4018                         }
4019                         me[serverportcount] = new serverrec(ServerName,100L,false);
4020                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
4021                         {
4022                                 log(DEFAULT,"Warning: Failed to bind port %lu",(unsigned long)atoi(configToken));
4023                                 printf("Warning: Failed to bind port %lu\n",(unsigned long)atoi(configToken));
4024                         }
4025                         else
4026                         {
4027                                 serverportcount++;
4028                         }
4029                 }
4030                 else
4031                 {
4032                         ports[clientportcount] = atoi(configToken);
4033                         strlcpy(addrs[clientportcount],Addr,256);
4034                         clientportcount++;
4035                 }
4036                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
4037         }
4038         portCount = clientportcount;
4039         SERVERportCount = serverportcount;
4040
4041         log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)SERVERportCount);
4042         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
4043
4044         printf("\n");
4045
4046         /* BugFix By Craig! :p */
4047         MODCOUNT = -1;
4048         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
4049         {
4050                 ConfValue("module","name",count,configToken,&config_f);
4051                 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
4052                 if (!LoadModule(configToken))
4053                 {
4054                         log(DEFAULT,"Exiting due to a module loader error.");
4055                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
4056                         Exit(0);
4057                 }
4058         }
4059         log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
4060
4061         startup_time = time(NULL);
4062
4063         char PID[MAXBUF];
4064         ConfValue("pid","file",0,PID,&config_f);
4065         // write once here, to try it out and make sure its ok
4066         WritePID(PID);
4067
4068         /* setup select call */
4069 #ifndef USE_KQUEUE
4070         FD_ZERO(&selectFds);
4071 #endif
4072         log(DEBUG,"InspIRCd: startup: zero selects");
4073         log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
4074
4075         for (count = 0; count < portCount; count++)
4076         {
4077                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
4078                 {
4079                         log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
4080                         return(ERROR);
4081                 }
4082                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
4083                 {
4084                         log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
4085                 }
4086                 else    /* well we at least bound to one socket so we'll continue */
4087                 {
4088                         boundPortCount++;
4089                 }
4090         }
4091
4092         log(DEBUG,"InspIRCd: startup: total bound ports %lu",(unsigned long)boundPortCount);
4093
4094         /* if we didn't bind to anything then abort */
4095         if (boundPortCount == 0)
4096         {
4097                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
4098                 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
4099                 return (ERROR);
4100         }
4101
4102
4103         printf("\nInspIRCd is now running!\n");
4104
4105         if (nofork)
4106         {
4107                 log(VERBOSE,"Not forking as -nofork was specified");
4108         }
4109         else
4110         {
4111                 if (DaemonSeed() == ERROR)
4112                 {
4113                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
4114                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
4115                         Exit(ERROR);
4116                 }
4117         }
4118
4119         // BUGFIX: We cannot initialize this before forking, as the kqueue data is not inherited by child processes!
4120 #ifdef USE_KQUEUE
4121         kq = kqueue();
4122         lkq = kqueue();
4123         skq = kqueue();
4124         if ((kq == -1) || (lkq == -1) || (skq == -1))
4125         {
4126                 log(DEFAULT,"main: kqueue() failed!");
4127                 printf("ERROR: could not initialise kqueue event system. Shutting down.\n");
4128                 Exit(ERROR);
4129         }
4130 #endif
4131
4132
4133 #ifdef USE_KQUEUE
4134         log(DEFAULT,"kqueue socket engine is enabled. Filling listen list.");
4135         for (count = 0; count < boundPortCount; count++)
4136         {
4137                 struct kevent ke;
4138                 log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]);
4139                 EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, 5, NULL);
4140                 int i = kevent(lkq, &ke, 1, 0, 0, NULL);
4141                 if (i == -1)
4142                 {
4143                         log(DEFAULT,"main: add listen ports to kqueue failed!");
4144                         printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n");
4145                 }
4146         }
4147         for (int t = 0; t != SERVERportCount; t++)
4148         {
4149                 struct kevent ke;
4150                 if (me[t])
4151                 {
4152                         log(DEBUG,"kqueue: Add listening SERVER socket to events, kq=%d socket=%d",skq,me[t]->fd);
4153                         EV_SET(&ke, me[t]->fd, EVFILT_READ, EV_ADD, 0, 5, NULL);
4154                         int i = kevent(skq, &ke, 1, 0, 0, NULL);
4155                         if (i == -1)
4156                         {
4157                                 log(DEFAULT,"main: add server listen ports to kqueue failed!");
4158                                 printf("ERROR: could not initialise listening server sockets in kqueue. Shutting down.\n");
4159                         }
4160                 }
4161         }
4162
4163
4164 #else
4165         log(DEFAULT,"Using standard select socket engine.");
4166 #endif
4167
4168         WritePID(PID);
4169
4170         length = sizeof (client);
4171         char tcp_msg[MAXBUF],tcp_host[MAXBUF];
4172
4173 #ifdef USE_KQUEUE
4174         struct kevent ke;
4175         struct kevent ke_list[33];
4176         struct timespec ts;
4177 #endif
4178         fd_set serverfds;
4179         timeval tvs;
4180         tvs.tv_usec = 10000L;
4181         tvs.tv_sec = 0;
4182         tv.tv_sec = 0;
4183         tv.tv_usec = 10000L;
4184         char data[65536];
4185         timeval tval;
4186         fd_set sfd;
4187         tval.tv_usec = 10000L;
4188         tval.tv_sec = 0;
4189         int total_in_this_set = 0;
4190         int i = 0, v = 0, j = 0, cycle_iter = 0;
4191         bool expire_run = false;
4192
4193         /* main loop, this never returns */
4194         for (;;)
4195         {
4196 #ifdef _POSIX_PRIORITY_SCHEDULING
4197                 sched_yield();
4198 #endif
4199 #ifndef USE_KQUEUE
4200                 FD_ZERO(&sfd);
4201 #endif
4202
4203                 // we only read time() once per iteration rather than tons of times!
4204                 OLDTIME = TIME;
4205                 TIME = time(NULL);
4206
4207                 dns_poll();
4208
4209                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
4210                 // them in a list, then reap the list every second or so.
4211                 if (((TIME % 5) == 0) && (!expire_run))
4212                 {
4213                         expire_lines();
4214                         FOREACH_MOD OnBackgroundTimer(TIME);
4215                         expire_run = true;
4216                         continue;
4217                 }
4218                 if ((TIME % 5) == 1)
4219                         expire_run = false;
4220
4221                 // fix by brain - this must be below any manipulation of the hashmap by modules
4222                 user_hash::iterator count2 = clientlist.begin();
4223
4224 #ifdef USE_KQUEUE
4225                 ts.tv_sec = 0;
4226                 ts.tv_nsec = 30000L;
4227                 i = kevent(skq, NULL, 0, &ke, 1, &ts);
4228                 if (i > 0)
4229                 {
4230                         log(DEBUG,"kqueue: Listening server socket event, i=%d, ke.ident=%d",i,ke.ident);
4231                         for (int x = 0; x != SERVERportCount; x++)
4232                         {
4233                                 if ((me[x]) && (ke.ident == me[x]->fd))
4234                                 {
4235
4236 #else
4237                 FD_ZERO(&serverfds);
4238                 for (int x = 0; x != SERVERportCount; x++)
4239                 {
4240                         if (me[x])
4241                                 FD_SET(me[x]->fd, &serverfds);
4242                 }
4243                 tvs.tv_usec = 30000L;
4244                 tvs.tv_sec = 0;
4245                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
4246                 if (servresult > 0)
4247                 {
4248                         for (int x = 0; x != SERVERportCount; x++)
4249                         {
4250                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
4251                                 {
4252 #endif
4253                                         char remotehost[MAXBUF],resolved[MAXBUF];
4254                                         length = sizeof (client);
4255                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
4256                                         if (incomingSockfd != -1)
4257                                         {
4258                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
4259                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
4260                                                 {
4261                                                         strlcpy(resolved,remotehost,MAXBUF);
4262                                                 }
4263                                                 // add to this connections ircd_connector vector
4264                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
4265                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
4266                                         }
4267                                 }
4268                         }
4269                 }
4270
4271                 for (int x = 0; x < SERVERportCount; x++)
4272                 {
4273                         std::deque<std::string> msgs;
4274                         msgs.clear();
4275                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
4276                         {
4277                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
4278                                 {
4279                                         strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
4280                                         log(DEBUG,"Processing: %s",tcp_msg);
4281                                         if (!tcp_msg[0])
4282                                         {
4283                                                 log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
4284                                                 break;
4285                                         }
4286                                         // during a netburst, send all data to all other linked servers
4287                                         if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
4288                                         {
4289                                                 if (is_uline(tcp_host))
4290                                                 {
4291                                                         if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
4292                                                         {
4293                                                                 NetSendToAllExcept(tcp_host,tcp_msg);
4294                                                         }
4295                                                 }
4296                                                 else
4297                                                         NetSendToAllExcept(tcp_host,tcp_msg);
4298                                         }
4299                                         std::string msg = tcp_msg;
4300                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4301                                         strlcpy(tcp_msg,msg.c_str(),MAXBUF);
4302                                         handle_link_packet(tcp_msg, tcp_host, me[x]);
4303                                 }
4304                                 goto label;
4305                         }
4306                 }
4307
4308         while (count2 != clientlist.end())
4309         {
4310 #ifndef USE_KQUEUE
4311                 FD_ZERO(&sfd);
4312 #endif
4313
4314                 total_in_this_set = 0;
4315
4316                 user_hash::iterator xcount = count2;
4317                 user_hash::iterator endingiter = count2;
4318
4319                 if (count2 == clientlist.end()) break;
4320
4321                 userrec* curr = NULL;
4322
4323                 if (count2->second)
4324                         curr = count2->second;
4325
4326                 if ((curr) && (curr->fd != 0))
4327                 {
4328 #ifdef _POSIX_PRIORITY_SCHEDULING
4329         sched_yield();
4330 #endif
4331                         // assemble up to 64 sockets into an fd_set
4332                         // to implement a pooling mechanism.
4333                         //
4334                         // This should be up to 64x faster than the
4335                         // old implementation.
4336 #ifndef USE_KQUEUE
4337                         while (total_in_this_set < 1024)
4338                         {
4339                                 if (count2 != clientlist.end())
4340                                 {
4341                                         curr = count2->second;
4342                                         // we don't check the state of remote users.
4343                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4344                                         {
4345                                                 FD_SET (curr->fd, &sfd);
4346
4347                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4348                                                 // their connection class.
4349                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4350                                                 {
4351                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4352                                                         kill_link(curr,"Registration timeout");
4353                                                         goto label;
4354                                                 }
4355                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4356                                                 {
4357                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4358                                                         curr->dns_done = true;
4359                                                         statsDnsBad++;
4360                                                         FullConnectUser(curr);
4361                                                         goto label;
4362                                                 }
4363                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) // both NICK and USER... and DNS
4364                                                 {
4365                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4366                                                         FullConnectUser(curr);
4367                                                         goto label;
4368                                                 }
4369                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4370                                                 {
4371                                                         if ((!curr->lastping) && (curr->registered == 7))
4372                                                         {
4373                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4374                                                                 kill_link(curr,"Ping timeout");
4375                                                                 goto label;
4376                                                         }
4377                                                         Write(curr->fd,"PING :%s",ServerName);
4378                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4379                                                         curr->lastping = 0;
4380                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4381                                                 }
4382                                         }
4383                                         count2++;
4384                                         total_in_this_set++;
4385                                 }
4386                                 else break;
4387                         }
4388                         endingiter = count2;
4389                         count2 = xcount; // roll back to where we were
4390 #else
4391                         // 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.
4392                         // TODO: We dont need to do all this EVERY loop iteration, tone down the visits to this if we're using kqueue.
4393                         cycle_iter++;
4394                         if (cycle_iter > 10) while (count2 != clientlist.end())
4395                         {
4396                                 cycle_iter = 0;
4397                                 if (count2 != clientlist.end())
4398                                 {
4399                                         curr = count2->second;
4400                                         // we don't check the state of remote users.
4401                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4402                                         {
4403                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4404                                                 // their connection class.
4405                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4406                                                 {
4407                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4408                                                         kill_link(curr,"Registration timeout");
4409                                                         goto label;
4410                                                 }
4411                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4412                                                 {
4413                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
4414                                                         curr->dns_done = true;
4415                                                         statsDnsBad++;
4416                                                         FullConnectUser(curr);
4417                                                         goto label;
4418                                                 }
4419                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4420                                                 {
4421                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4422                                                         FullConnectUser(curr);
4423                                                         goto label;
4424                                                 }
4425                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4426                                                 {
4427                                                         if ((!curr->lastping) && (curr->registered == 7))
4428                                                         {
4429                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4430                                                                 kill_link(curr,"Ping timeout");
4431                                                                 goto label;
4432                                                         }
4433                                                         Write(curr->fd,"PING :%s",ServerName);
4434                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4435                                                         curr->lastping = 0;
4436                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4437                                                 }
4438                                         }
4439                                 }
4440                                 else break;
4441                                 count2++;
4442                         }
4443                         // increment the counter right to the end of the list, as kqueue processes everything in one go
4444 #endif
4445
4446                         v = 0;
4447
4448 #ifdef USE_KQUEUE
4449                         ts.tv_sec = 0;
4450                         ts.tv_nsec = 1000L;
4451                         // for now, we only read 1 event. We could read soooo many more :)
4452                         int i = kevent(kq, NULL, 0, &ke, 1, &ts);
4453                         if (i > 0)
4454                         {
4455                                 log(DEBUG,"kevent call: kq=%d, i=%d",kq,i);
4456                                 // KQUEUE: kevent gives us ONE fd which is ready to have something done to it. Do something to it.
4457                                 userrec* cu = fd_ref_table[ke.ident];
4458 #else
4459                         tval.tv_usec = 1000L;
4460                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4461
4462                         // now loop through all of the items in this pool if any are waiting
4463                         if (selectResult2 > 0)
4464                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4465                         {
4466                                 // SELECT: we have to iterate...
4467                                 userrec* cu = count2a->second;
4468 #endif
4469
4470 #ifdef _POSIX_PRIORITY_SCHEDULING
4471                                 sched_yield();
4472 #endif
4473                                 result = EAGAIN;
4474 #ifdef USE_KQUEUE
4475                                 // KQUEUE: We already know we have a valid FD. No checks needed.
4476                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
4477 #else
4478                                 // SELECT: We don't know if our FD is valid.
4479                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd)))
4480 #endif
4481                                 {
4482                                         log(DEBUG,"Data waiting on socket %d",cu->fd);
4483                                         int MOD_RESULT = 0;
4484                                         int result2 = 0;
4485                                         FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
4486                                         if (!MOD_RESULT)
4487                                         {
4488                                                 result = read(cu->fd, data, 65535);
4489                                         }
4490                                         else result = result2;
4491                                         log(DEBUG,"Read result: %d",result);
4492                                         if (result)
4493                                         {
4494                                                 statsRecv += result;
4495                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4496                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4497                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4498                                                 for (int checker = 0; checker < result; checker++)
4499                                                 {
4500                                                         if ((data[checker] == 0) || (data[checker] == 7))
4501                                                                 data[checker] = ' ';
4502                                                 }
4503                                                 if (result > 0)
4504                                                         data[result] = '\0';
4505                                                 userrec* current = cu;
4506                                                 int currfd = current->fd;
4507                                                 int floodlines = 0;
4508                                                 // add the data to the users buffer
4509                                                 if (result > 0)
4510                                                 if (!current->AddBuffer(data))
4511                                                 {
4512                                                         // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
4513                                                         if (current->registered == 7)
4514                                                         {
4515                                                                 kill_link(current,"RecvQ exceeded");
4516                                                         }
4517                                                         else
4518                                                         {
4519                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4520                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4521                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4522                                                                 apply_lines();
4523                                                         }
4524                                                         goto label;
4525                                                 }
4526                                                 if (current->recvq.length() > NetBufferSize)
4527                                                 {
4528                                                         if (current->registered == 7)
4529                                                         {
4530                                                                 kill_link(current,"RecvQ exceeded");
4531                                                         }
4532                                                         else
4533                                                         {
4534                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4535                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4536                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4537                                                                 apply_lines();
4538                                                         }
4539                                                         goto label;
4540                                                 }
4541                                                 // while there are complete lines to process...
4542                                                 while (current->BufferIsReady())
4543                                                 {
4544                                                         floodlines++;
4545                                                         if (TIME > current->reset_due)
4546                                                         {
4547                                                                 current->reset_due = TIME + current->threshold;
4548                                                                 current->lines_in = 0;
4549                                                         }
4550                                                         current->lines_in++;
4551                                                         if (current->lines_in > current->flood)
4552                                                         {
4553                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4554                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4555                                                                 kill_link(current,"Excess flood");
4556                                                                 goto label;
4557                                                         }
4558                                                         if ((floodlines > current->flood) && (current->flood != 0))
4559                                                         {
4560                                                                 if (current->registered == 7)
4561                                                                 {
4562                                                                         log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4563                                                                         WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4564                                                                         kill_link(current,"Excess flood");
4565                                                                 }
4566                                                                 else
4567                                                                 {
4568                                                                         add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4569                                                                         apply_lines();
4570                                                                 }
4571                                                                 goto label;
4572                                                         }
4573                                                         char sanitized[MAXBUF];
4574                                                         // use GetBuffer to copy single lines into the sanitized string
4575                                                         std::string single_line = current->GetBuffer();
4576                                                         current->bytes_in += single_line.length();
4577                                                         current->cmds_in++;
4578                                                         if (single_line.length()>512)
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                                                                 goto label;
4584                                                         }
4585                                                         strlcpy(sanitized,single_line.c_str(),MAXBUF);
4586                                                         if (*sanitized)
4587                                                         {
4588                                                                 userrec* old_comp = fd_ref_table[currfd];
4589                                                                 // we're gonna re-scan to check if the nick is gone, after every
4590                                                                 // command - if it has, we're gonna bail
4591                                                                 process_buffer(sanitized,current);
4592                                                                 // look for the user's record in case it's changed... if theyve quit,
4593                                                                 // we cant do anything more with their buffer, so bail.
4594                                                                 // there used to be an ugly, slow loop here. Now we have a reference
4595                                                                 // table, life is much easier (and FASTER)
4596                                                                 userrec* new_comp = fd_ref_table[currfd];
4597                                                                 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
4598                                                                         goto label;
4599
4600                                                         }
4601                                                 }
4602                                                 goto label;
4603                                         }
4604
4605                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4606                                         {
4607                                                 log(DEBUG,"killing: %s",cu->nick);
4608                                                 kill_link(cu,strerror(errno));
4609                                                 goto label;
4610                                         }
4611                                 }
4612                                 // result EAGAIN means nothing read
4613                                 if (result == EAGAIN)
4614                                 {
4615                                 }
4616                                 else
4617                                 if (result == 0)
4618                                 {
4619 #ifndef USE_KQUEUE
4620                                         if (count2->second)
4621                                         {
4622 #endif
4623                                                 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
4624                                                 kill_link(cu,"Client exited");
4625                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4626                                                 log(DEBUG,"Bailing from client exit");
4627                                                 goto label;
4628 #ifndef USE_KQUEUE
4629                                         }
4630 #endif
4631                                 }
4632                                 else if (result > 0)
4633                                 {
4634                                 }
4635                         }
4636                 }
4637                 for (int q = 0; q < total_in_this_set; q++)
4638                 {
4639                         count2++;
4640                 }
4641         }
4642
4643 #ifdef _POSIX_PRIORITY_SCHEDULING
4644         sched_yield();
4645 #endif
4646
4647 #ifndef USE_KQUEUE
4648         // set up select call
4649         for (count = 0; count < boundPortCount; count++)
4650         {
4651                 FD_SET (openSockfd[count], &selectFds);
4652         }
4653
4654         tv.tv_usec = 30000L;
4655         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4656
4657         /* select is reporting a waiting socket. Poll them all to find out which */
4658         if (selectResult > 0)
4659         {
4660                 for (count = 0; count < boundPortCount; count++)
4661                 {
4662                         if (FD_ISSET (openSockfd[count], &selectFds))
4663                         {
4664 #else
4665         ts.tv_sec = 0;
4666         ts.tv_nsec = 30000L;
4667         i = kevent(lkq, NULL, 0, ke_list, 32, &ts);
4668         if (i > 0) for (j = 0; j < i; j++)
4669         {
4670                 log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke.ident);
4671                 // this isnt as efficient as it could be, we could create a reference table
4672                 // to reference bound ports by fd, but this isnt a big bottleneck as the actual
4673                 // number of listening ports on the average ircd is a small number (less than 20)
4674                 // compared to the number of clients (possibly over 2000)
4675                 for (count = 0; count < boundPortCount; count++)
4676                 {
4677                         if (ke_list[j].ident == openSockfd[count])
4678                         {
4679 #endif
4680                                 char target[MAXBUF], resolved[MAXBUF];
4681                                 length = sizeof (client);
4682                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4683
4684                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4685                                 strlcpy (resolved, target, MAXBUF);
4686
4687                                 if (incomingSockfd < 0)
4688                                 {
4689                                         WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
4690                                         log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
4691                                         statsRefused++;
4692                                 }
4693                                 else
4694                                 {
4695                                         FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
4696                                         statsAccept++;
4697                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4698                                         log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
4699                                 }
4700                                 //goto label;
4701                         }
4702                 }
4703         }
4704         label:
4705         if (0) {};
4706 #ifdef _POSIX_PRIORITY_SCHEDULING
4707         sched_yield();
4708         sched_yield();
4709 #endif
4710 }
4711 /* not reached */
4712 close (incomingSockfd);
4713 }
4714