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         int res;
 600
 601         va_start (argsPtr, text);
 602         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 603         va_end(argsPtr);
 604         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 605         chop(tb);
 606         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 607         {
 608                 if (fd_ref_table[sock])
 609                 {
 610                         int MOD_RESULT = 0;
 611                         FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 612                         fd_ref_table[sock]->AddWriteBuf(tb);
 613                         statsSent += bytes;
 614                 }
 615                 else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 616         }
 617 }
 618
 619 /* write a server formatted numeric response to a single socket */
 620
 621 void WriteServ(int sock, char* text, ...)
 622 {
 623         if (sock == FD_MAGIC_NUMBER)
 624                 return;
 625         if (!text)
 626         {
 627                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 628                 return;
 629         }
 630         char textbuffer[MAXBUF],tb[MAXBUF];
 631         int res;
 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                 if (fd_ref_table[sock])
 642                 {
 643                         int MOD_RESULT = 0;
 644                         FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 645                         fd_ref_table[sock]->AddWriteBuf(tb);
 646                         statsSent += bytes;
 647                 }
 648                 else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 649         }
 650 }
 651
 652 /* write text from an originating user to originating user */
 653
 654 void WriteFrom(int sock, userrec *user,char* text, ...)
 655 {
 656         if (sock == FD_MAGIC_NUMBER)
 657                 return;
 658         if ((!text) || (!user))
 659         {
 660                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 661                 return;
 662         }
 663         char textbuffer[MAXBUF],tb[MAXBUF];
 664         va_list argsPtr;
 665         int res;
 666         va_start (argsPtr, text);
 667
 668         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 669         va_end(argsPtr);
 670         int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 671         chop(tb);
 672         if ((sock != -1) && (sock != FD_MAGIC_NUMBER))
 673         {
 674                 if (fd_ref_table[sock])
 675                 {
 676                         int MOD_RESULT = 0;
 677                         FOREACH_RESULT(OnRawSocketWrite(sock,tb,bytes));
 678                         fd_ref_table[sock]->AddWriteBuf(tb);
 679                         statsSent += bytes;
 680                 }
 681                 else log(DEFAULT,"ERROR! attempted write to a user with no fd_ref_table entry!!!");
 682         }
 683 }
 684
 685 /* write text to an destination user from a source user (e.g. user privmsg) */
 686
 687 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 688 {
 689         if ((!dest) || (!data))
 690         {
 691                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 692                 return;
 693         }
 694         if (dest->fd == FD_MAGIC_NUMBER)
 695                 return;
 696         char textbuffer[MAXBUF],tb[MAXBUF];
 697         va_list argsPtr;
 698         va_start (argsPtr, data);
 699         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 700         va_end(argsPtr);
 701         chop(tb);
 702
 703         // if no source given send it from the server.
 704         if (!source)
 705         {
 706                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 707         }
 708         else
 709         {
 710                 WriteFrom(dest->fd,source,"%s",textbuffer);
 711         }
 712 }
 713
 714 /* write formatted text from a source user to all users on a channel
 715  * including the sender (NOT for privmsg, notice etc!) */
 716
 717 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 718 {
 719         if ((!Ptr) || (!user) || (!text))
 720         {
 721                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 722                 return;
 723         }
 724         char textbuffer[MAXBUF];
 725         va_list argsPtr;
 726         va_start (argsPtr, text);
 727         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 728         va_end(argsPtr);
 729
 730         std::vector<char*> *ulist = Ptr->GetUsers();
 731         for (int j = 0; j < ulist->size(); j++)
 732         {
 733                 char* o = (*ulist)[j];
 734                 userrec* otheruser = (userrec*)o;
 735                 if (otheruser->fd != FD_MAGIC_NUMBER)
 736                         WriteTo(user,otheruser,"%s",textbuffer);
 737         }
 738 }
 739
 740 /* write formatted text from a source user to all users on a channel
 741  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 742  * users on remote servers */
 743
 744 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 745 {
 746         if ((!Ptr) || (!text))
 747         {
 748                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 749                 return;
 750         }
 751         char textbuffer[MAXBUF];
 752         va_list argsPtr;
 753         va_start (argsPtr, text);
 754         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 755         va_end(argsPtr);
 756
 757         std::vector<char*> *ulist = Ptr->GetUsers();
 758         for (int j = 0; j < ulist->size(); j++)
 759         {
 760                 char* o = (*ulist)[j];
 761                 userrec* otheruser = (userrec*)o;
 762                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 763                 {
 764                         if (!user)
 765                         {
 766                                 WriteServ(otheruser->fd,"%s",textbuffer);
 767                         }
 768                         else
 769                         {
 770                                 WriteTo(user,otheruser,"%s",textbuffer);
 771                         }
 772                 }
 773         }
 774 }
 775
 776
 777 void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
 778 {
 779         if ((!Ptr) || (!text))
 780         {
 781                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 782                 return;
 783         }
 784         char textbuffer[MAXBUF];
 785         va_list argsPtr;
 786         va_start (argsPtr, text);
 787         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 788         va_end(argsPtr);
 789
 790
 791         std::vector<char*> *ulist = Ptr->GetUsers();
 792         for (int j = 0; j < ulist->size(); j++)
 793         {
 794                 char* o = (*ulist)[j];
 795                 userrec* otheruser = (userrec*)o;
 796                 if (otheruser->fd != FD_MAGIC_NUMBER)
 797                         WriteServ(otheruser->fd,"%s",textbuffer);
 798         }
 799 }
 800
 801
 802 /* write formatted text from a source user to all users on a channel except
 803  * for the sender (for privmsg etc) */
 804
 805 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 806 {
 807         if ((!Ptr) || (!user) || (!text))
 808         {
 809                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 810                 return;
 811         }
 812         char textbuffer[MAXBUF];
 813         va_list argsPtr;
 814         va_start (argsPtr, text);
 815         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 816         va_end(argsPtr);
 817
 818         std::vector<char*> *ulist = Ptr->GetUsers();
 819         for (int j = 0; j < ulist->size(); j++)
 820         {
 821                 char* o = (*ulist)[j];
 822                 userrec* otheruser = (userrec*)o;
 823                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 824                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 825         }
 826 }
 827
 828
 829 std::string GetServerDescription(char* servername)
 830 {
 831         for (int j = 0; j < 32; j++)
 832         {
 833                 if (me[j] != NULL)
 834                 {
 835                         for (int k = 0; k < me[j]->connectors.size(); k++)
 836                         {
 837                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 838                                 {
 839                                         return me[j]->connectors[k].GetDescription();
 840                                 }
 841                         }
 842                 }
 843                 return ServerDesc; // not a remote server that can be found, it must be me.
 844         }
 845 }
 846
 847
 848 /* write a formatted string to all users who share at least one common
 849  * channel, including the source user e.g. for use in NICK */
 850
 851 void WriteCommon(userrec *u, char* text, ...)
 852 {
 853         if (!u)
 854         {
 855                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 856                 return;
 857         }
 858
 859         if (u->registered != 7) {
 860                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 861                 return;
 862         }
 863
 864         char textbuffer[MAXBUF];
 865         va_list argsPtr;
 866         va_start (argsPtr, text);
 867         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 868         va_end(argsPtr);
 869
 870         // FIX: Stops a message going to the same person more than once
 871         bzero(&already_sent,65536);
 872
 873         bool sent_to_at_least_one = false;
 874
 875         for (int i = 0; i < MAXCHANS; i++)
 876         {
 877                 if (u->chans[i].channel)
 878                 {
 879                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 880                         for (int j = 0; j < ulist->size(); j++)
 881                         {
 882                                 char* o = (*ulist)[j];
 883                                 userrec* otheruser = (userrec*)o;
 884                                 if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 885                                 {
 886                                         already_sent[otheruser->fd] = 1;
 887                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 888                                         sent_to_at_least_one = true;
 889                                 }
 890                         }
 891                 }
 892         }
 893         // if the user was not in any channels, no users will receive the text. Make sure the user
 894         // receives their OWN message for WriteCommon
 895         if (!sent_to_at_least_one)
 896         {
 897                 WriteFrom(u->fd,u,"%s",textbuffer);
 898         }
 899 }
 900
 901 /* write a formatted string to all users who share at least one common
 902  * channel, NOT including the source user e.g. for use in QUIT */
 903
 904 void WriteCommonExcept(userrec *u, char* text, ...)
 905 {
 906         if (!u)
 907         {
 908                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 909                 return;
 910         }
 911
 912         if (u->registered != 7) {
 913                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 914                 return;
 915         }
 916
 917         char textbuffer[MAXBUF];
 918         va_list argsPtr;
 919         va_start (argsPtr, text);
 920         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 921         va_end(argsPtr);
 922
 923         bzero(&already_sent,65536);
 924
 925         for (int i = 0; i < MAXCHANS; i++)
 926         {
 927                 if (u->chans[i].channel)
 928                 {
 929                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 930                         for (int j = 0; j < ulist->size(); j++)
 931                         {
 932                                 char* o = (*ulist)[j];
 933                                 userrec* otheruser = (userrec*)o;
 934                                 if (u != otheruser)
 935                                 {
 936                                         if ((otheruser->fd > 0) && (!already_sent[otheruser->fd]))
 937                                         {
 938                                                 already_sent[otheruser->fd] = 1;
 939                                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 940                                         }
 941                                 }
 942                         }
 943                 }
 944         }
 945 }
 946
 947 void WriteOpers(char* text, ...)
 948 {
 949         if (!text)
 950         {
 951                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 952                 return;
 953         }
 954
 955         char textbuffer[MAXBUF];
 956         va_list argsPtr;
 957         va_start (argsPtr, text);
 958         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 959         va_end(argsPtr);
 960
 961         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 962         {
 963                 userrec* a = *i;
 964                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 965                 {
 966                         if (strchr(a->modes,'s'))
 967                         {
 968                                 // send server notices to all with +s
 969                                 WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
 970                         }
 971                 }
 972         }
 973 }
 974
 975 void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
 976 {
 977         if ((!text) || (!source))
 978         {
 979                 log(DEFAULT,"*** BUG *** NoticeAllOpers was given an invalid parameter");
 980                 return;
 981         }
 982
 983         char textbuffer[MAXBUF];
 984         va_list argsPtr;
 985         va_start (argsPtr, text);
 986         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 987         va_end(argsPtr);
 988
 989         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 990         {
 991                 userrec* a = *i;
 992                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 993                 {
 994                         if (strchr(a->modes,'s'))
 995                         {
 996                                 // send server notices to all with +s
 997                                 WriteServ(a->fd,"NOTICE %s :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
 998                         }
 999                 }
1000         }
1001
1002         if (!local_only)
1003         {
1004                 char buffer[MAXBUF];
1005                 snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
1006                 NetSendToAll(buffer);
1007         }
1008 }
1009
1010 // returns TRUE of any users on channel C occupy server 'servername'.
1011
1012 bool ChanAnyOnThisServer(chanrec *c,char* servername)
1013 {
1014         log(DEBUG,"ChanAnyOnThisServer");
1015
1016         std::vector<char*> *ulist = c->GetUsers();
1017         for (int j = 0; j < ulist->size(); j++)
1018         {
1019                 char* o = (*ulist)[j];
1020                 userrec* user = (userrec*)o;
1021                 if (!strcasecmp(user->server,servername))
1022                         return true;
1023         }
1024         return false;
1025 }
1026
1027 // returns true if user 'u' shares any common channels with any users on server 'servername'
1028
1029 bool CommonOnThisServer(userrec* u,const char* servername)
1030 {
1031         log(DEBUG,"ChanAnyOnThisServer");
1032
1033         for (int i = 0; i < MAXCHANS; i++)
1034         {
1035                 if (u->chans[i].channel)
1036                 {
1037                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1038                         for (int j = 0; j < ulist->size(); j++)
1039                         {
1040                                 char* o = (*ulist)[j];
1041                                 userrec* user = (userrec*)o;
1042                                 if (!strcasecmp(user->server,servername))
1043                                         return true;
1044                         }
1045                 }
1046         }
1047         return false;
1048 }
1049
1050
1051 void NetSendToCommon(userrec* u, char* s)
1052 {
1053         char buffer[MAXBUF];
1054         snprintf(buffer,MAXBUF,"%s",s);
1055
1056         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1057
1058         std::string msg = buffer;
1059         FOREACH_MOD OnPacketTransmit(msg,s);
1060         strlcpy(buffer,msg.c_str(),MAXBUF);
1061
1062         for (int j = 0; j < 32; j++)
1063         {
1064                 if (me[j] != NULL)
1065                 {
1066                         for (int k = 0; k < me[j]->connectors.size(); k++)
1067                         {
1068                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1069                                 {
1070                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1071                                 }
1072                         }
1073                 }
1074         }
1075 }
1076
1077
1078 void NetSendToAll(char* s)
1079 {
1080         char buffer[MAXBUF];
1081         snprintf(buffer,MAXBUF,"%s",s);
1082
1083         log(DEBUG,"NetSendToAll: '%s'",s);
1084
1085         std::string msg = buffer;
1086         FOREACH_MOD OnPacketTransmit(msg,s);
1087         strlcpy(buffer,msg.c_str(),MAXBUF);
1088
1089         for (int j = 0; j < 32; j++)
1090         {
1091                 if (me[j] != NULL)
1092                 {
1093                         for (int k = 0; k < me[j]->connectors.size(); k++)
1094                         {
1095                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1096                         }
1097                 }
1098         }
1099 }
1100
1101 void NetSendToAllAlive(char* s)
1102 {
1103         char buffer[MAXBUF];
1104         snprintf(buffer,MAXBUF,"%s",s);
1105
1106         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1107
1108         std::string msg = buffer;
1109         FOREACH_MOD OnPacketTransmit(msg,s);
1110         strlcpy(buffer,msg.c_str(),MAXBUF);
1111
1112         for (int j = 0; j < 32; j++)
1113         {
1114                 if (me[j] != NULL)
1115                 {
1116                         for (int k = 0; k < me[j]->connectors.size(); k++)
1117                         {
1118                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1119                                 {
1120                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1121                                 }
1122                                 else
1123                                 {
1124                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1125                                 }
1126                         }
1127                 }
1128         }
1129 }
1130
1131
1132 void NetSendToOne(char* target,char* s)
1133 {
1134         char buffer[MAXBUF];
1135         snprintf(buffer,MAXBUF,"%s",s);
1136
1137         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1138
1139         std::string msg = buffer;
1140         FOREACH_MOD OnPacketTransmit(msg,s);
1141         strlcpy(buffer,msg.c_str(),MAXBUF);
1142
1143         for (int j = 0; j < 32; j++)
1144         {
1145                 if (me[j] != NULL)
1146                 {
1147                         for (int k = 0; k < me[j]->connectors.size(); k++)
1148                         {
1149                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1150                                 {
1151                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1152                                 }
1153                         }
1154                 }
1155         }
1156 }
1157
1158 void NetSendToAllExcept(const char* target,char* s)
1159 {
1160         char buffer[MAXBUF];
1161         snprintf(buffer,MAXBUF,"%s",s);
1162
1163         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1164
1165         std::string msg = buffer;
1166         FOREACH_MOD OnPacketTransmit(msg,s);
1167         strlcpy(buffer,msg.c_str(),MAXBUF);
1168
1169         for (int j = 0; j < 32; j++)
1170         {
1171                 if (me[j] != NULL)
1172                 {
1173                         for (int k = 0; k < me[j]->connectors.size(); k++)
1174                         {
1175                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1176                                 {
1177                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1178                                 }
1179                         }
1180                 }
1181         }
1182 }
1183
1184
1185 void WriteMode(const char* modes, int flags, const char* text, ...)
1186 {
1187         if ((!text) || (!modes) || (!flags))
1188         {
1189                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1190                 return;
1191         }
1192
1193         char textbuffer[MAXBUF];
1194         va_list argsPtr;
1195         va_start (argsPtr, text);
1196         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1197         va_end(argsPtr);
1198         int modelen = strlen(modes);
1199
1200         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1201         {
1202                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1203                 {
1204                         bool send_to_user = false;
1205
1206                         if (flags == WM_AND)
1207                         {
1208                                 send_to_user = true;
1209                                 for (int n = 0; n < modelen; n++)
1210                                 {
1211                                         if (!hasumode(i->second,modes[n]))
1212                                         {
1213                                                 send_to_user = false;
1214                                                 break;
1215                                         }
1216                                 }
1217                         }
1218                         else if (flags == WM_OR)
1219                         {
1220                                 send_to_user = false;
1221                                 for (int n = 0; n < modelen; n++)
1222                                 {
1223                                         if (hasumode(i->second,modes[n]))
1224                                         {
1225                                                 send_to_user = true;
1226                                                 break;
1227                                         }
1228                                 }
1229                         }
1230
1231                         if (send_to_user)
1232                         {
1233                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1234                         }
1235                 }
1236         }
1237 }
1238
1239
1240 void NoticeAll(userrec *source, bool local_only, char* text, ...)
1241 {
1242         if ((!text) || (!source))
1243         {
1244                 log(DEFAULT,"*** BUG *** NoticeAll was given an invalid parameter");
1245                 return;
1246         }
1247
1248         char textbuffer[MAXBUF];
1249         va_list argsPtr;
1250         va_start (argsPtr, text);
1251         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1252         va_end(argsPtr);
1253
1254         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1255         {
1256                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1257                 {
1258                         WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
1259                 }
1260         }
1261
1262         if (!local_only)
1263         {
1264                 char buffer[MAXBUF];
1265                 snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
1266                 NetSendToAll(buffer);
1267         }
1268
1269 }
1270
1271 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1272 {
1273         if ((!text) || (!source))
1274         {
1275                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1276                 return;
1277         }
1278
1279         char textbuffer[MAXBUF];
1280         va_list argsPtr;
1281         va_start (argsPtr, text);
1282         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1283         va_end(argsPtr);
1284
1285         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1286         {
1287                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1288                 {
1289                         if (strchr(i->second->modes,'w'))
1290                         {
1291                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1292                         }
1293                 }
1294         }
1295
1296         if (!local_only)
1297         {
1298                 char buffer[MAXBUF];
1299                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1300                 NetSendToAll(buffer);
1301         }
1302 }
1303
1304 /* convert a string to lowercase. Note following special circumstances
1305  * taken from RFC 1459. Many "official" server branches still hold to this
1306  * rule so i will too;
1307  *
1308  *  Because of IRC's scandanavian origin, the characters {}| are
1309  *  considered to be the lower case equivalents of the characters []\,
1310  *  respectively. This is a critical issue when determining the
1311  *  equivalence of two nicknames.
1312  */
1313
1314 void strlower(char *n)
1315 {
1316         if (n)
1317         {
1318                 for (char* t = n; *t; t++)
1319                         *t = lowermap[*t];
1320         }
1321 }
1322
1323
1324
1325 /* Find a user record by nickname and return a pointer to it */
1326
1327 userrec* Find(std::string nick)
1328 {
1329         user_hash::iterator iter = clientlist.find(nick);
1330
1331         if (iter == clientlist.end())
1332                 /* Couldn't find it */
1333                 return NULL;
1334
1335         return iter->second;
1336 }
1337
1338 /* find a channel record by channel name and return a pointer to it */
1339
1340 chanrec* FindChan(const char* chan)
1341 {
1342         if (!chan)
1343         {
1344                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1345                 return NULL;
1346         }
1347
1348         chan_hash::iterator iter = chanlist.find(chan);
1349
1350         if (iter == chanlist.end())
1351                 /* Couldn't find it */
1352                 return NULL;
1353
1354         return iter->second;
1355 }
1356
1357
1358 long GetMaxBans(char* name)
1359 {
1360         char CM[MAXBUF];
1361         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1362         {
1363                 ConfValue("banlist","chan",count,CM,&config_f);
1364                 if (match(name,CM))
1365                 {
1366                         ConfValue("banlist","limit",count,CM,&config_f);
1367                         return atoi(CM);
1368                 }
1369         }
1370         return 64;
1371 }
1372
1373
1374 void purge_empty_chans(userrec* u)
1375 {
1376
1377         int go_again = 1, purge = 0;
1378
1379         // firstly decrement the count on each channel
1380         for (int f = 0; f < MAXCHANS; f++)
1381         {
1382                 if (u->chans[f].channel)
1383                 {
1384                         u->chans[f].channel->DelUser((char*)u);
1385                 }
1386         }
1387
1388         for (int i = 0; i < MAXCHANS; i++)
1389         {
1390                 if (u->chans[i].channel)
1391                 {
1392                         if (!usercount(u->chans[i].channel))
1393                         {
1394                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1395                                 /* kill the record */
1396                                 if (i2 != chanlist.end())
1397                                 {
1398                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1399                                         if (i2->second)
1400                                                 delete i2->second;
1401                                         chanlist.erase(i2);
1402                                         go_again = 1;
1403                                         purge++;
1404                                         u->chans[i].channel = NULL;
1405                                 }
1406                         }
1407                         else
1408                         {
1409                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1410                         }
1411                 }
1412         }
1413         log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
1414
1415         DeleteOper(u);
1416 }
1417
1418
1419 char scratch[MAXBUF];
1420 char sparam[MAXBUF];
1421
1422 char* chanmodes(chanrec *chan)
1423 {
1424         if (!chan)
1425         {
1426                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1427                 strcpy(scratch,"");
1428                 return scratch;
1429         }
1430
1431         strcpy(scratch,"");
1432         strcpy(sparam,"");
1433         if (chan->noexternal)
1434         {
1435                 strlcat(scratch,"n",MAXMODES);
1436         }
1437         if (chan->topiclock)
1438         {
1439                 strlcat(scratch,"t",MAXMODES);
1440         }
1441         if (chan->key[0])
1442         {
1443                 strlcat(scratch,"k",MAXMODES);
1444         }
1445         if (chan->limit)
1446         {
1447                 strlcat(scratch,"l",MAXMODES);
1448         }
1449         if (chan->inviteonly)
1450         {
1451                 strlcat(scratch,"i",MAXMODES);
1452         }
1453         if (chan->moderated)
1454         {
1455                 strlcat(scratch,"m",MAXMODES);
1456         }
1457         if (chan->secret)
1458         {
1459                 strlcat(scratch,"s",MAXMODES);
1460         }
1461         if (chan->c_private)
1462         {
1463                 strlcat(scratch,"p",MAXMODES);
1464         }
1465         if (chan->key[0])
1466         {
1467                 strlcat(sparam," ",MAXBUF);
1468                 strlcat(sparam,chan->key,MAXBUF);
1469         }
1470         if (chan->limit)
1471         {
1472                 char foo[24];
1473                 sprintf(foo," %lu",(unsigned long)chan->limit);
1474                 strlcat(sparam,foo,MAXBUF);
1475         }
1476         if (*chan->custom_modes)
1477         {
1478                 strlcat(scratch,chan->custom_modes,MAXMODES);
1479                 for (int z = 0; chan->custom_modes[z] != 0; z++)
1480                 {
1481                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1482                         if (extparam != "")
1483                         {
1484                                 strlcat(sparam," ",MAXBUF);
1485                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1486                         }
1487                 }
1488         }
1489         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1490         strlcat(scratch,sparam,MAXMODES);
1491         return scratch;
1492 }
1493
1494
1495 /* compile a userlist of a channel into a string, each nick seperated by
1496  * spaces and op, voice etc status shown as @ and + */
1497
1498 void userlist(userrec *user,chanrec *c)
1499 {
1500         if ((!c) || (!user))
1501         {
1502                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1503                 return;
1504         }
1505
1506         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1507
1508         std::vector<char*> *ulist = c->GetUsers();
1509         for (int i = 0; i < ulist->size(); i++)
1510         {
1511                 char* o = (*ulist)[i];
1512                 userrec* otheruser = (userrec*)o;
1513                 if ((!has_channel(user,c)) && (strchr(otheruser->modes,'i')))
1514                 {
1515                         /* user is +i, and source not on the channel, does not show
1516                          * nick in NAMES list */
1517                         continue;
1518                 }
1519                 strlcat(list,cmode(otheruser,c),MAXBUF);
1520                 strlcat(list,otheruser->nick,MAXBUF);
1521                 strlcat(list," ",MAXBUF);
1522                 if (strlen(list)>(480-NICKMAX))
1523                 {
1524                         /* list overflowed into
1525                          * multiple numerics */
1526                         WriteServ(user->fd,"%s",list);
1527                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1528                 }
1529         }
1530         /* if whats left in the list isnt empty, send it */
1531         if (list[strlen(list)-1] != ':')
1532         {
1533                 WriteServ(user->fd,"%s",list);
1534         }
1535 }
1536
1537 /* return a count of the users on a specific channel accounting for
1538  * invisible users who won't increase the count. e.g. for /LIST */
1539
1540 int usercount_i(chanrec *c)
1541 {
1542         int count = 0;
1543
1544         if (!c)
1545         {
1546                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1547                 return 0;
1548         }
1549
1550         strcpy(list,"");
1551         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1552         {
1553                 if (i->second)
1554                 {
1555                         if (has_channel(i->second,c))
1556                         {
1557                                 if (isnick(i->second->nick))
1558                                 {
1559                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1560                                         {
1561                                                 /* user is +i, and source not on the channel, does not show
1562                                                  * nick in NAMES list */
1563                                                 continue;
1564                                         }
1565                                         count++;
1566                                 }
1567                         }
1568                 }
1569         }
1570         log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
1571         return count;
1572 }
1573
1574
1575 int usercount(chanrec *c)
1576 {
1577         if (!c)
1578         {
1579                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1580                 return 0;
1581         }
1582         int count = c->GetUserCounter();
1583         log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
1584         return count;
1585 }
1586
1587
1588 /* add a channel to a user, creating the record for it if needed and linking
1589  * it to the user record */
1590
1591 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1592 {
1593         if ((!user) || (!cn))
1594         {
1595                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1596                 return 0;
1597         }
1598
1599         chanrec* Ptr;
1600         int created = 0;
1601         char cname[MAXBUF];
1602
1603         strncpy(cname,cn,MAXBUF);
1604
1605         // we MUST declare this wherever we use FOREACH_RESULT
1606         int MOD_RESULT = 0;
1607
1608         if (strlen(cname) > CHANMAX-1)
1609         {
1610                 cname[CHANMAX-1] = '\0';
1611         }
1612
1613         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1614
1615         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1616         {
1617                 return NULL; // already on the channel!
1618         }
1619
1620
1621         if (!FindChan(cname))
1622         {
1623                 MOD_RESULT = 0;
1624                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1625                 if (MOD_RESULT == 1) {
1626                         return NULL;
1627                 }
1628
1629                 /* create a new one */
1630                 log(DEBUG,"add_channel: creating: %s",cname);
1631                 {
1632                         chanlist[cname] = new chanrec();
1633
1634                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1635                         chanlist[cname]->topiclock = 1;
1636                         chanlist[cname]->noexternal = 1;
1637                         chanlist[cname]->created = TIME;
1638                         strcpy(chanlist[cname]->topic, "");
1639                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1640                         chanlist[cname]->topicset = 0;
1641                         Ptr = chanlist[cname];
1642                         log(DEBUG,"add_channel: created: %s",cname);
1643                         /* set created to 2 to indicate user
1644                          * is the first in the channel
1645                          * and should be given ops */
1646                         created = 2;
1647                 }
1648         }
1649         else
1650         {
1651                 /* channel exists, just fish out a pointer to its struct */
1652                 Ptr = FindChan(cname);
1653                 if (Ptr)
1654                 {
1655                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1656
1657                         // the override flag allows us to bypass channel modes
1658                         // and bans (used by servers)
1659                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1660                         {
1661                                 log(DEBUG,"Not overriding...");
1662                                 MOD_RESULT = 0;
1663                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1664                                 if (MOD_RESULT == 1) {
1665                                         return NULL;
1666                                 }
1667                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1668
1669                                 if (!MOD_RESULT)
1670                                 {
1671                                         log(DEBUG,"add_channel: checking key, invite, etc");
1672                                         MOD_RESULT = 0;
1673                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1674                                         if (MOD_RESULT == 0)
1675                                         {
1676                                                 if (Ptr->key[0])
1677                                                 {
1678                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1679                                                         if (!key)
1680                                                         {
1681                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1682                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1683                                                                 return NULL;
1684                                                         }
1685                                                         else
1686                                                         {
1687                                                                 if (strcasecmp(key,Ptr->key))
1688                                                                 {
1689                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1690                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1691                                                                         return NULL;
1692                                                                 }
1693                                                         }
1694                                                 }
1695                                                 log(DEBUG,"add_channel: no key");
1696                                         }
1697                                         MOD_RESULT = 0;
1698                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1699                                         if (MOD_RESULT == 0)
1700                                         {
1701                                                 if (Ptr->inviteonly)
1702                                                 {
1703                                                         log(DEBUG,"add_channel: channel is +i");
1704                                                         if (user->IsInvited(Ptr->name))
1705                                                         {
1706                                                                 /* user was invited to channel */
1707                                                                 /* there may be an optional channel NOTICE here */
1708                                                         }
1709                                                         else
1710                                                         {
1711                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1712                                                                 return NULL;
1713                                                         }
1714                                                 }
1715                                                 log(DEBUG,"add_channel: channel is not +i");
1716                                         }
1717                                         MOD_RESULT = 0;
1718                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1719                                         if (MOD_RESULT == 0)
1720                                         {
1721                                                 if (Ptr->limit)
1722                                                 {
1723                                                         if (usercount(Ptr) >= Ptr->limit)
1724                                                         {
1725                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1726                                                                 return NULL;
1727                                                         }
1728                                                 }
1729                                         }
1730                                         log(DEBUG,"add_channel: about to walk banlist");
1731                                         MOD_RESULT = 0;
1732                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1733                                         if (MOD_RESULT == 0)
1734                                         {
1735                                                 /* check user against the channel banlist */
1736                                                 if (Ptr)
1737                                                 {
1738                                                         if (Ptr->bans.size())
1739                                                         {
1740                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1741                                                                 {
1742                                                                         if (match(user->GetFullHost(),i->data))
1743                                                                         {
1744                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1745                                                                                 return NULL;
1746                                                                         }
1747                                                                 }
1748                                                         }
1749                                                 }
1750                                                 log(DEBUG,"add_channel: bans checked");
1751                                         }
1752
1753                                 }
1754
1755
1756                                 if ((Ptr) && (user))
1757                                 {
1758                                         user->RemoveInvite(Ptr->name);
1759                                 }
1760
1761                                 log(DEBUG,"add_channel: invites removed");
1762
1763                         }
1764                         else
1765                         {
1766                                 log(DEBUG,"Overridden checks");
1767                         }
1768
1769
1770                 }
1771                 created = 1;
1772         }
1773
1774         log(DEBUG,"Passed channel checks");
1775
1776         for (int index =0; index != MAXCHANS; index++)
1777         {
1778                 log(DEBUG,"Check location %d",index);
1779                 if (user->chans[index].channel == NULL)
1780                 {
1781                         log(DEBUG,"Adding into their channel list at location %d",index);
1782
1783                         if (created == 2)
1784                         {
1785                                 /* first user in is given ops */
1786                                 user->chans[index].uc_modes = UCMODE_OP;
1787                         }
1788                         else
1789                         {
1790                                 user->chans[index].uc_modes = 0;
1791                         }
1792                         user->chans[index].channel = Ptr;
1793                         Ptr->IncUserCounter();
1794                         Ptr->AddUser((char*)user);
1795                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1796
1797                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1798                         {
1799                                 // use the stamdard J token with no privilages.
1800                                 char buffer[MAXBUF];
1801                                 if (created == 2)
1802                                 {
1803                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1804                                 }
1805                                 else
1806                                 {
1807                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1808                                 }
1809                                 NetSendToAll(buffer);
1810                         }
1811
1812                         log(DEBUG,"Sent JOIN to client");
1813
1814                         if (Ptr->topicset)
1815                         {
1816                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1817                                 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
1818                         }
1819                         userlist(user,Ptr);
1820                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1821                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1822                         //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
1823                         FOREACH_MOD OnUserJoin(user,Ptr);
1824                         return Ptr;
1825                 }
1826         }
1827         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1828         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1829         return NULL;
1830 }
1831
1832 /* remove a channel from a users record, and remove the record from memory
1833  * if the channel has become empty */
1834
1835 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1836 {
1837         if ((!user) || (!cname))
1838         {
1839                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1840                 return NULL;
1841         }
1842
1843         chanrec* Ptr;
1844
1845         if ((!cname) || (!user))
1846         {
1847                 return NULL;
1848         }
1849
1850         Ptr = FindChan(cname);
1851
1852         if (!Ptr)
1853         {
1854                 return NULL;
1855         }
1856
1857         FOREACH_MOD OnUserPart(user,Ptr);
1858         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1859
1860         for (int i =0; i != MAXCHANS; i++)
1861         {
1862                 /* zap it from the channel list of the user */
1863                 if (user->chans[i].channel == Ptr)
1864                 {
1865                         if (reason)
1866                         {
1867                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1868
1869                                 if (!local)
1870                                 {
1871                                         char buffer[MAXBUF];
1872                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1873                                         NetSendToAll(buffer);
1874                                 }
1875
1876
1877                         }
1878                         else
1879                         {
1880                                 if (!local)
1881                                 {
1882                                         char buffer[MAXBUF];
1883                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1884                                         NetSendToAll(buffer);
1885                                 }
1886
1887                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1888                         }
1889                         user->chans[i].uc_modes = 0;
1890                         user->chans[i].channel = NULL;
1891                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1892                         break;
1893                 }
1894         }
1895
1896         Ptr->DelUser((char*)user);
1897
1898         /* if there are no users left on the channel */
1899         if (!usercount(Ptr))
1900         {
1901                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1902
1903                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1904
1905                 /* kill the record */
1906                 if (iter != chanlist.end())
1907                 {
1908                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1909                         delete Ptr;
1910                         chanlist.erase(iter);
1911                 }
1912         }
1913 }
1914
1915
1916 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1917 {
1918         if ((!src) || (!user) || (!Ptr) || (!reason))
1919         {
1920                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1921                 return;
1922         }
1923
1924         if ((!Ptr) || (!user) || (!src))
1925         {
1926                 return;
1927         }
1928
1929         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1930
1931         if (!has_channel(user,Ptr))
1932         {
1933                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1934                 return;
1935         }
1936
1937         int MOD_RESULT = 0;
1938         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1939         if (MOD_RESULT == ACR_DENY)
1940                 return;
1941
1942         if (MOD_RESULT == ACR_DEFAULT)
1943         {
1944                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1945                 {
1946                         if (cstatus(src,Ptr) == STATUS_HOP)
1947                         {
1948                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1949                         }
1950                         else
1951                         {
1952                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1953                         }
1954
1955                         return;
1956                 }
1957         }
1958
1959         MOD_RESULT = 0;
1960         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1961         if (MOD_RESULT)
1962                 return;
1963
1964         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1965
1966         for (int i =0; i != MAXCHANS; i++)
1967         {
1968                 /* zap it from the channel list of the user */
1969                 if (user->chans[i].channel)
1970                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1971                 {
1972                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1973                         user->chans[i].uc_modes = 0;
1974                         user->chans[i].channel = NULL;
1975                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1976                         break;
1977                 }
1978         }
1979
1980         Ptr->DelUser((char*)user);
1981
1982         /* if there are no users left on the channel */
1983         if (!usercount(Ptr))
1984         {
1985                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1986
1987                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1988
1989                 /* kill the record */
1990                 if (iter != chanlist.end())
1991                 {
1992                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1993                         delete Ptr;
1994                         chanlist.erase(iter);
1995                 }
1996         }
1997 }
1998
1999
2000
2001
2002 /* This function pokes and hacks at a parameter list like the following:
2003  *
2004  * PART #winbot,#darkgalaxy :m00!
2005  *
2006  * to turn it into a series of individual calls like this:
2007  *
2008  * PART #winbot :m00!
2009  * PART #darkgalaxy :m00!
2010  *
2011  * The seperate calls are sent to a callback function provided by the caller
2012  * (the caller will usually call itself recursively). The callback function
2013  * must be a command handler. Calling this function on a line with no list causes
2014  * no action to be taken. You must provide a starting and ending parameter number
2015  * where the range of the list can be found, useful if you have a terminating
2016  * parameter as above which is actually not part of the list, or parameters
2017  * before the actual list as well. This code is used by many functions which
2018  * can function as "one to list" (see the RFC) */
2019
2020 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2021 {
2022         char plist[MAXBUF];
2023         char *param;
2024         char *pars[32];
2025         char blog[32][MAXBUF];
2026         char blog2[32][MAXBUF];
2027         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2028         char keystr[MAXBUF];
2029         char moo[MAXBUF];
2030
2031         for (int i = 0; i <32; i++)
2032                 strcpy(blog[i],"");
2033
2034         for (int i = 0; i <32; i++)
2035                 strcpy(blog2[i],"");
2036
2037         strcpy(moo,"");
2038         for (int i = 0; i <10; i++)
2039         {
2040                 if (!parameters[i])
2041                 {
2042                         parameters[i] = moo;
2043                 }
2044         }
2045         if (joins)
2046         {
2047                 if (pcnt > 1) /* we have a key to copy */
2048                 {
2049                         strlcpy(keystr,parameters[1],MAXBUF);
2050                 }
2051         }
2052
2053         if (!parameters[start])
2054         {
2055                 return 0;
2056         }
2057         if (!strchr(parameters[start],','))
2058         {
2059                 return 0;
2060         }
2061         strcpy(plist,"");
2062         for (int i = start; i <= end; i++)
2063         {
2064                 if (parameters[i])
2065                 {
2066                         strlcat(plist,parameters[i],MAXBUF);
2067                 }
2068         }
2069
2070         j = 0;
2071         param = plist;
2072
2073         t = strlen(plist);
2074         for (int i = 0; i < t; i++)
2075         {
2076                 if (plist[i] == ',')
2077                 {
2078                         plist[i] = '\0';
2079                         strlcpy(blog[j++],param,MAXBUF);
2080                         param = plist+i+1;
2081                         if (j>20)
2082                         {
2083                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2084                                 return 1;
2085                         }
2086                 }
2087         }
2088         strlcpy(blog[j++],param,MAXBUF);
2089         total = j;
2090
2091         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2092         {
2093                 strcat(keystr,",");
2094         }
2095
2096         if ((joins) && (keystr))
2097         {
2098                 if (strchr(keystr,','))
2099                 {
2100                         j = 0;
2101                         param = keystr;
2102                         t2 = strlen(keystr);
2103                         for (int i = 0; i < t2; i++)
2104                         {
2105                                 if (keystr[i] == ',')
2106                                 {
2107                                         keystr[i] = '\0';
2108                                         strlcpy(blog2[j++],param,MAXBUF);
2109                                         param = keystr+i+1;
2110                                 }
2111                         }
2112                         strlcpy(blog2[j++],param,MAXBUF);
2113                         total2 = j;
2114                 }
2115         }
2116
2117         for (j = 0; j < total; j++)
2118         {
2119                 if (blog[j])
2120                 {
2121                         pars[0] = blog[j];
2122                 }
2123                 for (q = end; q < pcnt-1; q++)
2124                 {
2125                         if (parameters[q+1])
2126                         {
2127                                 pars[q-end+1] = parameters[q+1];
2128                         }
2129                 }
2130                 if ((joins) && (parameters[1]))
2131                 {
2132                         if (pcnt > 1)
2133                         {
2134                                 pars[1] = blog2[j];
2135                         }
2136                         else
2137                         {
2138                                 pars[1] = NULL;
2139                         }
2140                 }
2141                 /* repeatedly call the function with the hacked parameter list */
2142                 if ((joins) && (pcnt > 1))
2143                 {
2144                         if (pars[1])
2145                         {
2146                                 // pars[1] already set up and containing key from blog2[j]
2147                                 fn(pars,2,u);
2148                         }
2149                         else
2150                         {
2151                                 pars[1] = parameters[1];
2152                                 fn(pars,2,u);
2153                         }
2154                 }
2155                 else
2156                 {
2157                         fn(pars,pcnt-(end-start),u);
2158                 }
2159         }
2160
2161         return 1;
2162 }
2163
2164
2165
2166 void kill_link(userrec *user,const char* r)
2167 {
2168         user_hash::iterator iter = clientlist.find(user->nick);
2169
2170         char reason[MAXBUF];
2171
2172         strncpy(reason,r,MAXBUF);
2173
2174         if (strlen(reason)>MAXQUIT)
2175         {
2176                 reason[MAXQUIT-1] = '\0';
2177         }
2178
2179         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2180         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2181         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2182
2183         if (user->registered == 7) {
2184                 FOREACH_MOD OnUserQuit(user);
2185                 WriteCommonExcept(user,"QUIT :%s",reason);
2186
2187                 // Q token must go to ALL servers!!!
2188                 char buffer[MAXBUF];
2189                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2190                 NetSendToAll(buffer);
2191         }
2192
2193         FOREACH_MOD OnUserDisconnect(user);
2194
2195         if (user->fd > -1)
2196         {
2197                 FOREACH_MOD OnRawSocketClose(user->fd);
2198 #ifdef USE_KQUEUE
2199                 struct kevent ke;
2200                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2201                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2202                 if (i == -1)
2203                 {
2204                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2205                 }
2206 #endif
2207                 shutdown(user->fd,2);
2208                 close(user->fd);
2209         }
2210
2211         if (user->registered == 7) {
2212                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2213                 AddWhoWas(user);
2214         }
2215
2216         if (user->registered == 7) {
2217                 purge_empty_chans(user);
2218         }
2219
2220         if (iter != clientlist.end())
2221         {
2222                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2223                 if (user->fd > -1)
2224                         fd_ref_table[user->fd] = NULL;
2225                 delete user;
2226                 clientlist.erase(iter);
2227         }
2228 }
2229
2230 void kill_link_silent(userrec *user,const char* r)
2231 {
2232         user_hash::iterator iter = clientlist.find(user->nick);
2233
2234         char reason[MAXBUF];
2235
2236         strncpy(reason,r,MAXBUF);
2237
2238         if (strlen(reason)>MAXQUIT)
2239         {
2240                 reason[MAXQUIT-1] = '\0';
2241         }
2242
2243         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2244         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2245         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2246
2247         if (user->registered == 7) {
2248                 FOREACH_MOD OnUserQuit(user);
2249                 WriteCommonExcept(user,"QUIT :%s",reason);
2250
2251                 // Q token must go to ALL servers!!!
2252                 char buffer[MAXBUF];
2253                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2254                 NetSendToAll(buffer);
2255         }
2256
2257         FOREACH_MOD OnUserDisconnect(user);
2258
2259         if (user->fd > -1)
2260         {
2261                 FOREACH_MOD OnRawSocketClose(user->fd);
2262 #ifdef USE_KQUEUE
2263                 struct kevent ke;
2264                 EV_SET(&ke, user->fd, EVFILT_READ, EV_DELETE, 0, 0, NULL);
2265                 int i = kevent(kq, &ke, 1, 0, 0, NULL);
2266                 if (i == -1)
2267                 {
2268                         log(DEBUG,"kqueue: Failed to remove user from queue!");
2269                 }
2270 #endif
2271                 shutdown(user->fd,2);
2272                 close(user->fd);
2273         }
2274
2275         if (user->registered == 7) {
2276                 purge_empty_chans(user);
2277         }
2278
2279         if (iter != clientlist.end())
2280         {
2281                 log(DEBUG,"deleting user hash value %lu",(unsigned long)user);
2282                 if (user->fd > -1)
2283                         fd_ref_table[user->fd] = NULL;
2284                 delete user;
2285                 clientlist.erase(iter);
2286         }
2287 }
2288
2289
2290
2291 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2292
2293 char* Passwd(userrec *user)
2294 {
2295         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2296         {
2297                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2298                 {
2299                         return i->pass;
2300                 }
2301         }
2302         return "";
2303 }
2304
2305 bool IsDenied(userrec *user)
2306 {
2307         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2308         {
2309                 if (match(user->host,i->host) && (i->type == CC_DENY))
2310                 {
2311                         return true;
2312                 }
2313         }
2314         return false;
2315 }
2316
2317
2318
2319
2320 /* sends out an error notice to all connected clients (not to be used
2321  * lightly!) */
2322
2323 void send_error(char *s)
2324 {
2325         log(DEBUG,"send_error: %s",s);
2326         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2327         {
2328                 if (isnick(i->second->nick))
2329                 {
2330                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2331                 }
2332                 else
2333                 {
2334                         // fix - unregistered connections receive ERROR, not NOTICE
2335                         Write(i->second->fd,"ERROR :%s",s);
2336                 }
2337         }
2338 }
2339
2340 void Error(int status)
2341 {
2342         signal (SIGALRM, SIG_IGN);
2343         signal (SIGPIPE, SIG_IGN);
2344         signal (SIGTERM, SIG_IGN);
2345         signal (SIGABRT, SIG_IGN);
2346         signal (SIGSEGV, SIG_IGN);
2347         signal (SIGURG, SIG_IGN);
2348         signal (SIGKILL, SIG_IGN);
2349         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2350         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2351         Exit(status);
2352 }
2353
2354
2355 int main(int argc, char** argv)
2356 {
2357         Start();
2358         srand(time(NULL));
2359         log(DEBUG,"*** InspIRCd starting up!");
2360         if (!FileExists(CONFIG_FILE))
2361         {
2362                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2363                 log(DEFAULT,"main: no config");
2364                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2365                 Exit(ERROR);
2366         }
2367         if (argc > 1) {
2368                 for (int i = 1; i < argc; i++)
2369                 {
2370                         if (!strcmp(argv[i],"-nofork")) {
2371                                 nofork = true;
2372                         }
2373                         if (!strcmp(argv[i],"-wait")) {
2374                                 sleep(6);
2375                         }
2376                         if (!strcmp(argv[i],"-nolimit")) {
2377                                 unlimitcore = true;
2378                         }
2379                 }
2380         }
2381         strlcpy(MyExecutable,argv[0],MAXBUF);
2382
2383         // initialize the lowercase mapping table
2384         for (int cn = 0; cn < 256; cn++)
2385                 lowermap[cn] = cn;
2386         // lowercase the uppercase chars
2387         for (int cn = 65; cn < 91; cn++)
2388                 lowermap[cn] = tolower(cn);
2389         // now replace the specific chars for scandanavian comparison
2390         lowermap['['] = '{';
2391         lowermap[']'] = '}';
2392         lowermap['\\'] = '|';
2393
2394         if (InspIRCd(argv,argc) == ERROR)
2395         {
2396                 log(DEFAULT,"main: daemon function bailed");
2397                 printf("ERROR: could not initialise. Shutting down.\n");
2398                 Exit(ERROR);
2399         }
2400         Exit(TRUE);
2401         return 0;
2402 }
2403
2404 template<typename T> inline string ConvToStr(const T &in)
2405 {
2406         stringstream tmp;
2407         if (!(tmp << in)) return string();
2408         return tmp.str();
2409 }
2410
2411 /* re-allocates a nick in the user_hash after they change nicknames,
2412  * returns a pointer to the new user as it may have moved */
2413
2414 userrec* ReHashNick(char* Old, char* New)
2415 {
2416         //user_hash::iterator newnick;
2417         user_hash::iterator oldnick = clientlist.find(Old);
2418
2419         log(DEBUG,"ReHashNick: %s %s",Old,New);
2420
2421         if (!strcasecmp(Old,New))
2422         {
2423                 log(DEBUG,"old nick is new nick, skipping");
2424                 return oldnick->second;
2425         }
2426
2427         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2428
2429         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2430
2431         clientlist[New] = new userrec();
2432         clientlist[New] = oldnick->second;
2433         clientlist.erase(oldnick);
2434
2435         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2436
2437         return clientlist[New];
2438 }
2439
2440 /* adds or updates an entry in the whowas list */
2441 void AddWhoWas(userrec* u)
2442 {
2443         user_hash::iterator iter = whowas.find(u->nick);
2444         userrec *a = new userrec();
2445         strlcpy(a->nick,u->nick,NICKMAX);
2446         strlcpy(a->ident,u->ident,64);
2447         strlcpy(a->dhost,u->dhost,256);
2448         strlcpy(a->host,u->host,256);
2449         strlcpy(a->fullname,u->fullname,128);
2450         strlcpy(a->server,u->server,256);
2451         a->signon = u->signon;
2452
2453         /* MAX_WHOWAS:   max number of /WHOWAS items
2454          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2455          *               can be replaced by a newer one
2456          */
2457
2458         if (iter == whowas.end())
2459         {
2460                 if (whowas.size() == WHOWAS_MAX)
2461                 {
2462                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2463                         {
2464                                 // 3600 seconds in an hour ;)
2465                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2466                                 {
2467                                         if (i->second) delete i->second;
2468                                         i->second = a;
2469                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2470                                         return;
2471                                 }
2472                         }
2473                 }
2474                 else
2475                 {
2476                         log(DEBUG,"added fresh WHOWAS entry");
2477                         whowas[a->nick] = a;
2478                 }
2479         }
2480         else
2481         {
2482                 log(DEBUG,"updated WHOWAS entry");
2483                 if (iter->second) delete iter->second;
2484                 iter->second = a;
2485         }
2486 }
2487
2488
2489 /* add a client connection to the sockets list */
2490 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2491 {
2492         string tempnick;
2493         char tn2[MAXBUF];
2494         user_hash::iterator iter;
2495
2496         tempnick = ConvToStr(socket) + "-unknown";
2497         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
2498
2499         iter = clientlist.find(tempnick);
2500
2501         // fix by brain.
2502         // as these nicknames are 'RFC impossible', we can be sure nobody is going to be
2503         // using one as a registered connection. As theyre per fd, we can also safely assume
2504         // that we wont have collisions. Therefore, if the nick exists in the list, its only
2505         // used by a dead socket, erase the iterator so that the new client may reclaim it.
2506         // this was probably the cause of 'server ignores me when i hammer it with reconnects'
2507         // issue in earlier alphas/betas
2508         if (iter != clientlist.end())
2509         {
2510                 clientlist.erase(iter);
2511         }
2512
2513         /*
2514          * It is OK to access the value here this way since we know
2515          * it exists, we just created it above.
2516          *
2517          * At NO other time should you access a value in a map or a
2518          * hash_map this way.
2519          */
2520         clientlist[tempnick] = new userrec();
2521
2522         NonBlocking(socket);
2523         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
2524
2525         clientlist[tempnick]->fd = socket;
2526         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2527         strncpy(clientlist[tempnick]->host, host,160);
2528         strncpy(clientlist[tempnick]->dhost, host,160);
2529         strncpy(clientlist[tempnick]->server, ServerName,256);
2530         strncpy(clientlist[tempnick]->ident, "unknown",12);
2531         clientlist[tempnick]->registered = 0;
2532         clientlist[tempnick]->signon = TIME+dns_timeout;
2533         clientlist[tempnick]->lastping = 1;
2534         clientlist[tempnick]->port = port;
2535         strncpy(clientlist[tempnick]->ip,ip,32);
2536
2537         // set the registration timeout for this user
2538         unsigned long class_regtimeout = 90;
2539         int class_flood = 0;
2540         long class_threshold = 5;
2541
2542         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2543         {
2544                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2545                 {
2546                         class_regtimeout = (unsigned long)i->registration_timeout;
2547                         class_flood = i->flood;
2548                         clientlist[tempnick]->pingmax = i->pingtime;
2549                         class_threshold = i->threshold;
2550                         break;
2551                 }
2552         }
2553
2554         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2555         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2556         clientlist[tempnick]->flood = class_flood;
2557         clientlist[tempnick]->threshold = class_threshold;
2558
2559         for (int i = 0; i < MAXCHANS; i++)
2560         {
2561                 clientlist[tempnick]->chans[i].channel = NULL;
2562                 clientlist[tempnick]->chans[i].uc_modes = 0;
2563         }
2564
2565         if (clientlist.size() == MAXCLIENTS)
2566         {
2567                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2568                 return;
2569         }
2570
2571         // this is done as a safety check to keep the file descriptors within range of fd_ref_table.
2572         // its a pretty big but for the moment valid assumption:
2573         // file descriptors are handed out starting at 0, and are recycled as theyre freed.
2574         // therefore if there is ever an fd over 65535, 65536 clients must be connected to the
2575         // irc server at once (or the irc server otherwise initiating this many connections, files etc)
2576         // which for the time being is a physical impossibility (even the largest networks dont have more
2577         // than about 10,000 users on ONE server!)
2578         if (socket > 65535)
2579         {
2580                 kill_link(clientlist[tempnick],"Server is full");
2581                 return;
2582         }
2583
2584
2585         char* e = matches_exception(ip);
2586         if (!e)
2587         {
2588                 char* r = matches_zline(ip);
2589                 if (r)
2590                 {
2591                         char reason[MAXBUF];
2592                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2593                         kill_link(clientlist[tempnick],reason);
2594                         return;
2595                 }
2596         }
2597         fd_ref_table[socket] = clientlist[tempnick];
2598
2599 #ifdef USE_KQUEUE
2600         struct kevent ke;
2601         log(DEBUG,"kqueue: Add user to events, kq=%d socket=%d",kq,socket);
2602         EV_SET(&ke, socket, EVFILT_READ, EV_ADD, 0, 0, NULL);
2603         int i = kevent(kq, &ke, 1, 0, 0, NULL);
2604         if (i == -1)
2605         {
2606                 switch (errno)
2607                 {
2608                         case EACCES:
2609                                 log(DEBUG,"kqueue: EACCES");
2610                         break;
2611                         case EFAULT:
2612                                 log(DEBUG,"kqueue: EFAULT");
2613                         break;
2614                         case EBADF:
2615                                 log(DEBUG,"kqueue: EBADF=%d",ke.ident);
2616                         break;
2617                         case EINTR:
2618                                 log(DEBUG,"kqueue: EINTR");
2619                         break;
2620                         case EINVAL:
2621                                 log(DEBUG,"kqueue: EINVAL");
2622                         break;
2623                         case ENOENT:
2624                                 log(DEBUG,"kqueue: ENOENT");
2625                         break;
2626                         case ENOMEM:
2627                                 log(DEBUG,"kqueue: ENOMEM");
2628                         break;
2629                         case ESRCH:
2630                                 log(DEBUG,"kqueue: ESRCH");
2631                         break;
2632                         default:
2633                                 log(DEBUG,"kqueue: UNKNOWN!");
2634                         break;
2635                 }
2636                 log(DEBUG,"kqueue: Failed to add user to queue!");
2637         }
2638
2639 #endif
2640 }
2641
2642 // this function counts all users connected, wether they are registered or NOT.
2643 int usercnt(void)
2644 {
2645         return clientlist.size();
2646 }
2647
2648 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2649 int registered_usercount(void)
2650 {
2651         int c = 0;
2652         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2653         {
2654                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2655         }
2656         return c;
2657 }
2658
2659 int usercount_invisible(void)
2660 {
2661         int c = 0;
2662
2663         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2664         {
2665                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2666         }
2667         return c;
2668 }
2669
2670 int usercount_opers(void)
2671 {
2672         int c = 0;
2673
2674         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2675         {
2676                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2677         }
2678         return c;
2679 }
2680
2681 int usercount_unknown(void)
2682 {
2683         int c = 0;
2684
2685         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2686         {
2687                 if ((i->second->fd) && (i->second->registered != 7))
2688                         c++;
2689         }
2690         return c;
2691 }
2692
2693 long chancount(void)
2694 {
2695         return chanlist.size();
2696 }
2697
2698 long count_servs(void)
2699 {
2700         int c = 0;
2701         for (int i = 0; i < 32; i++)
2702         {
2703                 if (me[i] != NULL)
2704                 {
2705                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2706                         {
2707                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2708                                 {
2709                                         c++;
2710                                 }
2711                         }
2712                 }
2713         }
2714         return c;
2715 }
2716
2717 long servercount(void)
2718 {
2719         return count_servs()+1;
2720 }
2721
2722 long local_count()
2723 {
2724         int c = 0;
2725         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2726         {
2727                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2728         }
2729         return c;
2730 }
2731
2732
2733 void ShowMOTD(userrec *user)
2734 {
2735         char buf[65536];
2736         std::string WholeMOTD = "";
2737         if (!MOTD.size())
2738         {
2739                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2740                 return;
2741         }
2742         snprintf(buf,65535,":%s 375 %s :- %s message of the day\r\n", ServerName, user->nick, ServerName);
2743         WholeMOTD = WholeMOTD + buf;
2744         for (int i = 0; i != MOTD.size(); i++)
2745         {
2746                 snprintf(buf,65535,":%s 372 %s :- %s\r\n", ServerName, user->nick, MOTD[i].c_str());
2747                 WholeMOTD = WholeMOTD + buf;
2748         }
2749         snprintf(buf,65535,":%s 376 %s :End of message of the day.\r\n", ServerName, user->nick);
2750         WholeMOTD = WholeMOTD + buf;
2751         // only one write operation
2752         user->AddWriteBuf(WholeMOTD);
2753         statsSent += WholeMOTD.length();
2754 }
2755
2756 void ShowRULES(userrec *user)
2757 {
2758         if (!RULES.size())
2759         {
2760                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2761                 return;
2762         }
2763         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2764         for (int i = 0; i != RULES.size(); i++)
2765         {
2766                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2767         }
2768         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2769 }
2770
2771 /* shows the message of the day, and any other on-logon stuff */
2772 void FullConnectUser(userrec* user)
2773 {
2774         statsConnects++;
2775         user->idle_lastmsg = TIME;
2776         log(DEBUG,"ConnectUser: %s",user->nick);
2777
2778         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
2779         {
2780                 kill_link(user,"Invalid password");
2781                 return;
2782         }
2783         if (IsDenied(user))
2784         {
2785                 kill_link(user,"Unauthorised connection");
2786                 return;
2787         }
2788
2789         char match_against[MAXBUF];
2790         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2791         char* e = matches_exception(match_against);
2792         if (!e)
2793         {
2794                 char* r = matches_gline(match_against);
2795                 if (r)
2796                 {
2797                         char reason[MAXBUF];
2798                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2799                         kill_link_silent(user,reason);
2800                         return;
2801                 }
2802                 r = matches_kline(user->host);
2803                 if (r)
2804                 {
2805                         char reason[MAXBUF];
2806                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2807                         kill_link_silent(user,reason);
2808                         return;
2809                 }
2810         }
2811
2812         // fix by brain: move this below the xline checks to prevent spurious quits going onto the net that dont belong
2813         user->registered = 7;
2814
2815         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2816         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2817         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2818         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2819         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2820         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2821         std::stringstream v;
2822         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2823         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2824         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2825         v << Network;
2826         std::string data005 = v.str();
2827         FOREACH_MOD On005Numeric(data005);
2828         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2829         // so i'd better split it :)
2830         std::stringstream out(data005);
2831         std::string token = "";
2832         std::string line5 = "";
2833         int token_counter = 0;
2834         while (!out.eof())
2835         {
2836                 out >> token;
2837                 line5 = line5 + token + " ";
2838                 token_counter++;
2839                 if ((token_counter >= 13) || (out.eof() == true))
2840                 {
2841                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2842                         line5 = "";
2843                         token_counter = 0;
2844                 }
2845         }
2846         ShowMOTD(user);
2847
2848         char buffer[MAXBUF];
2849         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);
2850         NetSendToAll(buffer);
2851
2852         // fix by brain: these should be AFTER the N token, so other servers know what the HELL we're on about... :)
2853         FOREACH_MOD OnUserConnect(user);
2854         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
2855 }
2856
2857
2858 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2859 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2860 // registration timeout maximum seconds)
2861 bool AllModulesReportReady(userrec* user)
2862 {
2863         for (int i = 0; i <= MODCOUNT; i++)
2864         {
2865                 int res = modules[i]->OnCheckReady(user);
2866                         if (!res)
2867                                 return false;
2868         }
2869         return true;
2870 }
2871
2872 /* shows the message of the day, and any other on-logon stuff */
2873 void ConnectUser(userrec *user)
2874 {
2875         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2876         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2877         {
2878                 FullConnectUser(user);
2879         }
2880 }
2881
2882 std::string GetVersionString()
2883 {
2884         char Revision[] = "$Revision$";
2885         char versiondata[MAXBUF];
2886         char *s1 = Revision;
2887         char *savept;
2888         char *v2 = strtok_r(s1," ",&savept);
2889         s1 = savept;
2890         v2 = strtok_r(s1," ",&savept);
2891         s1 = savept;
2892 #ifdef USE_KQUEUE
2893         char socketengine[] = "kqueue";
2894 #else
2895         char socketengine[] = "select";
2896 #endif
2897         snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu) [SE=%s]",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION,socketengine);
2898         return versiondata;
2899 }
2900
2901 void handle_version(char **parameters, int pcnt, userrec *user)
2902 {
2903         if (!pcnt)
2904         {
2905                 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2906         }
2907         else
2908         {
2909                 if (!strcmp(parameters[0],"*"))
2910                 {
2911                         for (int j = 0; j < 32; j++)
2912                         {
2913                                 if (me[j] != NULL)
2914                                 {
2915                                         for (int x = 0; x < me[j]->connectors.size(); x++)
2916                                         {
2917                                                 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());
2918                                         }
2919                                 }
2920                         }
2921                         return;
2922                 }
2923                 if (match(ServerName,parameters[0]))
2924                 {
2925                         WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2926                         return;
2927                 }
2928                 bool displayed = false, found = false;
2929                 for (int j = 0; j < 32; j++)
2930                 {
2931                         if (me[j] != NULL)
2932                         {
2933                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2934                                 {
2935                                         if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
2936                                         {
2937                                                 found = true;
2938                                                 if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
2939                                                 {
2940                                                         displayed = true;
2941                                                         WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
2942                                                 }
2943                                         }
2944                                 }
2945                         }
2946                 }
2947                 if ((!displayed) && (found))
2948                 {
2949                         WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
2950                         return;
2951                 }
2952                 if (!found)
2953                 {
2954                         WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2955                 }
2956         }
2957         return;
2958 }
2959
2960
2961 // calls a handler function for a command
2962
2963 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2964 {
2965                 for (int i = 0; i < cmdlist.size(); i++)
2966                 {
2967                         if (!strcasecmp(cmdlist[i].command,commandname))
2968                         {
2969                                 if (cmdlist[i].handler_function)
2970                                 {
2971                                         if (pcnt>=cmdlist[i].min_params)
2972                                         {
2973                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2974                                                 {
2975                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2976                                                 }
2977                                         }
2978                                 }
2979                         }
2980                 }
2981 }
2982
2983 void DoSplitEveryone()
2984 {
2985         bool go_again = true;
2986         while (go_again)
2987         {
2988                 go_again = false;
2989                 for (int i = 0; i < 32; i++)
2990                 {
2991                         if (me[i] != NULL)
2992                         {
2993                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2994                                 {
2995                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2996                                         {
2997                                                 j->routes.clear();
2998                                                 j->CloseConnection();
2999                                                 me[i]->connectors.erase(j);
3000                                                 go_again = true;
3001                                                 break;
3002                                         }
3003                                 }
3004                         }
3005                 }
3006         }
3007         log(DEBUG,"Removed server. Will remove clients...");
3008         // iterate through the userlist and remove all users on this server.
3009         // because we're dealing with a mesh, we dont have to deal with anything
3010         // "down-route" from this server (nice huh)
3011         go_again = true;
3012         char reason[MAXBUF];
3013         while (go_again)
3014         {
3015                 go_again = false;
3016                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3017                 {
3018                         if (strcasecmp(u->second->server,ServerName))
3019                         {
3020                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
3021                                 kill_link(u->second,reason);
3022                                 go_again = true;
3023                                 break;
3024                         }
3025                 }
3026         }
3027 }
3028
3029
3030
3031 char islast(const char* s)
3032 {
3033         char c = '`';
3034         for (int j = 0; j < 32; j++)
3035         {
3036                 if (me[j] != NULL)
3037                 {
3038                         for (int k = 0; k < me[j]->connectors.size(); k++)
3039                         {
3040                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3041                                 {
3042                                         c = '|';
3043                                 }
3044                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
3045                                 {
3046                                         c = '`';
3047                                 }
3048                         }
3049                 }
3050         }
3051         return c;
3052 }
3053
3054 long map_count(const char* s)
3055 {
3056         int c = 0;
3057         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
3058         {
3059                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
3060         }
3061         return c;
3062 }
3063
3064
3065 void force_nickchange(userrec* user,const char* newnick)
3066 {
3067         char nick[MAXBUF];
3068         int MOD_RESULT = 0;
3069
3070         strcpy(nick,"");
3071
3072         FOREACH_RESULT(OnUserPreNick(user,newnick));
3073         if (MOD_RESULT) {
3074                 statsCollisions++;
3075                 kill_link(user,"Nickname collision");
3076                 return;
3077         }
3078         if (matches_qline(newnick))
3079         {
3080                 statsCollisions++;
3081                 kill_link(user,"Nickname collision");
3082                 return;
3083         }
3084
3085         if (user)
3086         {
3087                 if (newnick)
3088                 {
3089                         strncpy(nick,newnick,MAXBUF);
3090                 }
3091                 if (user->registered == 7)
3092                 {
3093                         char* pars[1];
3094                         pars[0] = nick;
3095                         handle_nick(pars,1,user);
3096                 }
3097         }
3098 }
3099
3100
3101 int process_parameters(char **command_p,char *parameters)
3102 {
3103         int j = 0;
3104         int q = strlen(parameters);
3105         if (!q)
3106         {
3107                 /* no parameters, command_p invalid! */
3108                 return 0;
3109         }
3110         if (parameters[0] == ':')
3111         {
3112                 command_p[0] = parameters+1;
3113                 return 1;
3114         }
3115         if (q)
3116         {
3117                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
3118                 {
3119                         /* only one parameter */
3120                         command_p[0] = parameters;
3121                         if (parameters[0] == ':')
3122                         {
3123                                 if (strchr(parameters,' ') != NULL)
3124                                 {
3125                                         command_p[0]++;
3126                                 }
3127                         }
3128                         return 1;
3129                 }
3130         }
3131         command_p[j++] = parameters;
3132         for (int i = 0; i <= q; i++)
3133         {
3134                 if (parameters[i] == ' ')
3135                 {
3136                         command_p[j++] = parameters+i+1;
3137                         parameters[i] = '\0';
3138                         if (command_p[j-1][0] == ':')
3139                         {
3140                                 *command_p[j-1]++; /* remove dodgy ":" */
3141                                 break;
3142                                 /* parameter like this marks end of the sequence */
3143                         }
3144                 }
3145         }
3146         return j; /* returns total number of items in the list */
3147 }
3148
3149 void process_command(userrec *user, char* cmd)
3150 {
3151         char *parameters;
3152         char *command;
3153         char *command_p[127];
3154         char p[MAXBUF], temp[MAXBUF];
3155         int j, items, cmd_found;
3156
3157         for (int i = 0; i < 127; i++)
3158                 command_p[i] = NULL;
3159
3160         if (!user)
3161         {
3162                 return;
3163         }
3164         if (!cmd)
3165         {
3166                 return;
3167         }
3168         if (!cmd[0])
3169         {
3170                 return;
3171         }
3172
3173         int total_params = 0;
3174         if (strlen(cmd)>2)
3175         {
3176                 for (int q = 0; q < strlen(cmd)-1; q++)
3177                 {
3178                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
3179                         {
3180                                 total_params++;
3181                                 // found a 'trailing', we dont count them after this.
3182                                 break;
3183                         }
3184                         if (cmd[q] == ' ')
3185                                 total_params++;
3186                 }
3187         }
3188
3189         // another phidjit bug...
3190         if (total_params > 126)
3191         {
3192                 *(strchr(cmd,' ')) = '\0';
3193                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
3194                 return;
3195         }
3196
3197         strlcpy(temp,cmd,MAXBUF);
3198
3199         std::string tmp = cmd;
3200         for (int i = 0; i <= MODCOUNT; i++)
3201         {
3202                 std::string oldtmp = tmp;
3203                 modules[i]->OnServerRaw(tmp,true,user);
3204                 if (oldtmp != tmp)
3205                 {
3206                         log(DEBUG,"A Module changed the input string!");
3207                         log(DEBUG,"New string: %s",tmp.c_str());
3208                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3209                         break;
3210                 }
3211         }
3212         strlcpy(cmd,tmp.c_str(),MAXBUF);
3213         strlcpy(temp,cmd,MAXBUF);
3214
3215         if (!strchr(cmd,' '))
3216         {
3217                 /* no parameters, lets skip the formalities and not chop up
3218                  * the string */
3219                 log(DEBUG,"About to preprocess command with no params");
3220                 items = 0;
3221                 command_p[0] = NULL;
3222                 parameters = NULL;
3223                 for (int i = 0; i <= strlen(cmd); i++)
3224                 {
3225                         cmd[i] = toupper(cmd[i]);
3226                 }
3227                 command = cmd;
3228         }
3229         else
3230         {
3231                 strcpy(cmd,"");
3232                 j = 0;
3233                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3234                 for (int i = 0; i < strlen(temp); i++)
3235                 {
3236                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3237                         {
3238                                 cmd[j++] = temp[i];
3239                                 cmd[j] = 0;
3240                         }
3241                 }
3242                 /* split the full string into a command plus parameters */
3243                 parameters = p;
3244                 strcpy(p," ");
3245                 command = cmd;
3246                 if (strchr(cmd,' '))
3247                 {
3248                         for (int i = 0; i <= strlen(cmd); i++)
3249                         {
3250                                 /* capitalise the command ONLY, leave params intact */
3251                                 cmd[i] = toupper(cmd[i]);
3252                                 /* are we nearly there yet?! :P */
3253                                 if (cmd[i] == ' ')
3254                                 {
3255                                         command = cmd;
3256                                         parameters = cmd+i+1;
3257                                         cmd[i] = '\0';
3258                                         break;
3259                                 }
3260                         }
3261                 }
3262                 else
3263                 {
3264                         for (int i = 0; i <= strlen(cmd); i++)
3265                         {
3266                                 cmd[i] = toupper(cmd[i]);
3267                         }
3268                 }
3269
3270         }
3271         cmd_found = 0;
3272
3273         if (strlen(command)>MAXCOMMAND)
3274         {
3275                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3276                 return;
3277         }
3278
3279         for (int x = 0; x < strlen(command); x++)
3280         {
3281                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3282                 {
3283                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3284                         {
3285                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3286                                 {
3287                                         statsUnknown++;
3288                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3289                                         return;
3290                                 }
3291                         }
3292                 }
3293         }
3294
3295         for (int i = 0; i != cmdlist.size(); i++)
3296         {
3297                 if (cmdlist[i].command[0])
3298                 {
3299                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3300                         {
3301                                 if (parameters)
3302                                 {
3303                                         if (parameters[0])
3304                                         {
3305                                                 items = process_parameters(command_p,parameters);
3306                                         }
3307                                         else
3308                                         {
3309                                                 items = 0;
3310                                                 command_p[0] = NULL;
3311                                         }
3312                                 }
3313                                 else
3314                                 {
3315                                         items = 0;
3316                                         command_p[0] = NULL;
3317                                 }
3318
3319                                 if (user)
3320                                 {
3321                                         /* activity resets the ping pending timer */
3322                                         user->nping = TIME + user->pingmax;
3323                                         if ((items) < cmdlist[i].min_params)
3324                                         {
3325                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3326                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3327                                                 return;
3328                                         }
3329                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3330                                         {
3331                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3332                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3333                                                 cmd_found = 1;
3334                                                 return;
3335                                         }
3336                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3337                                         {
3338                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3339                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3340                                                 cmd_found = 1;
3341                                                 return;
3342                                         }
3343                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3344                                          * deny command! */
3345                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3346                                         {
3347                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3348                                                 {
3349                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3350                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3351                                                         return;
3352                                                 }
3353                                         }
3354                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3355                                         {
3356                                                 char* mycmd;
3357                                                 char* savept2;
3358                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3359                                                 while (mycmd)
3360                                                 {
3361                                                         if (!strcasecmp(mycmd,command))
3362                                                         {
3363                                                                 // command is disabled!
3364                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3365                                                                 return;
3366                                                         }
3367                                                         mycmd = strtok_r(NULL," ",&savept2);
3368                                                 }
3369
3370
3371                                         }
3372                                         if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
3373                                         {
3374                                                 if (cmdlist[i].handler_function)
3375                                                 {
3376
3377                                                         /* ikky /stats counters */
3378                                                         if (temp)
3379                                                         {
3380                                                                 cmdlist[i].use_count++;
3381                                                                 cmdlist[i].total_bytes+=strlen(temp);
3382                                                         }
3383
3384                                                         int MOD_RESULT = 0;
3385                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3386                                                         if (MOD_RESULT == 1) {
3387                                                                 return;
3388                                                         }
3389
3390                                                         /* WARNING: nothing may come after the
3391                                                          * command handler call, as the handler
3392                                                          * may free the user structure! */
3393
3394                                                         cmdlist[i].handler_function(command_p,items,user);
3395                                                 }
3396                                                 return;
3397                                         }
3398                                         else
3399                                         {
3400                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3401                                                 return;
3402                                         }
3403                                 }
3404                                 cmd_found = 1;
3405                         }
3406                 }
3407         }
3408         if ((!cmd_found) && (user))
3409         {
3410                 statsUnknown++;
3411                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3412         }
3413 }
3414
3415
3416 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3417 {
3418         command_t comm;
3419         /* create the command and push it onto the table */
3420         strlcpy(comm.command,cmd,MAXBUF);
3421         strlcpy(comm.source,source,MAXBUF);
3422         comm.handler_function = f;
3423         comm.flags_needed = flags;
3424         comm.min_params = minparams;
3425         comm.use_count = 0;
3426         comm.total_bytes = 0;
3427         cmdlist.push_back(comm);
3428         log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
3429 }
3430
3431 bool removecommands(const char* source)
3432 {
3433         bool go_again = true;
3434         while (go_again)
3435         {
3436                 go_again = false;
3437                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3438                 {
3439                         if (!strcmp(i->source,source))
3440                         {
3441                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3442                                 cmdlist.erase(i);
3443                                 go_again = true;
3444                                 break;
3445                         }
3446                 }
3447         }
3448         return true;
3449 }
3450
3451 void SetupCommandTable(void)
3452 {
3453         createcommand("USER",handle_user,0,4,"<core>");
3454         createcommand("NICK",handle_nick,0,1,"<core>");
3455         createcommand("QUIT",handle_quit,0,0,"<core>");
3456         createcommand("VERSION",handle_version,0,0,"<core>");
3457         createcommand("PING",handle_ping,0,1,"<core>");
3458         createcommand("PONG",handle_pong,0,1,"<core>");
3459         createcommand("ADMIN",handle_admin,0,0,"<core>");
3460         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3461         createcommand("INFO",handle_info,0,0,"<core>");
3462         createcommand("TIME",handle_time,0,0,"<core>");
3463         createcommand("WHOIS",handle_whois,0,1,"<core>");
3464         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3465         createcommand("NOTICE",handle_notice,0,2,"<core>");
3466         createcommand("JOIN",handle_join,0,1,"<core>");
3467         createcommand("NAMES",handle_names,0,0,"<core>");
3468         createcommand("PART",handle_part,0,1,"<core>");
3469         createcommand("KICK",handle_kick,0,2,"<core>");
3470         createcommand("MODE",handle_mode,0,1,"<core>");
3471         createcommand("TOPIC",handle_topic,0,1,"<core>");
3472         createcommand("WHO",handle_who,0,1,"<core>");
3473         createcommand("MOTD",handle_motd,0,0,"<core>");
3474         createcommand("RULES",handle_rules,0,0,"<core>");
3475         createcommand("OPER",handle_oper,0,2,"<core>");
3476         createcommand("LIST",handle_list,0,0,"<core>");
3477         createcommand("DIE",handle_die,'o',1,"<core>");
3478         createcommand("RESTART",handle_restart,'o',1,"<core>");
3479         createcommand("KILL",handle_kill,'o',2,"<core>");
3480         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3481         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3482         createcommand("STATS",handle_stats,0,1,"<core>");
3483         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3484         createcommand("AWAY",handle_away,0,0,"<core>");
3485         createcommand("ISON",handle_ison,0,0,"<core>");
3486         createcommand("SUMMON",handle_summon,0,0,"<core>");
3487         createcommand("USERS",handle_users,0,0,"<core>");
3488         createcommand("INVITE",handle_invite,0,2,"<core>");
3489         createcommand("PASS",handle_pass,0,1,"<core>");
3490         createcommand("TRACE",handle_trace,'o',0,"<core>");
3491         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3492         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3493         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3494         createcommand("MODULES",handle_modules,0,0,"<core>");
3495         createcommand("LINKS",handle_links,0,0,"<core>");
3496         createcommand("MAP",handle_map,0,0,"<core>");
3497         createcommand("KLINE",handle_kline,'o',1,"<core>");
3498         createcommand("GLINE",handle_gline,'o',1,"<core>");
3499         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3500         createcommand("QLINE",handle_qline,'o',1,"<core>");
3501         createcommand("ELINE",handle_eline,'o',1,"<core>");
3502         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3503         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3504         createcommand("SERVER",handle_server,0,0,"<core>");
3505 }
3506
3507 void process_buffer(const char* cmdbuf,userrec *user)
3508 {
3509         if (!user)
3510         {
3511                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3512                 return;
3513         }
3514         char cmd[MAXBUF];
3515         if (!cmdbuf)
3516         {
3517                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3518                 return;
3519         }
3520         if (!cmdbuf[0])
3521         {
3522                 return;
3523         }
3524         while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
3525
3526         strlcpy(cmd,cmdbuf,MAXBUF);
3527         if (!cmd[0])
3528         {
3529                 return;
3530         }
3531         int sl = strlen(cmd)-1;
3532         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3533         {
3534                 cmd[sl] = '\0';
3535         }
3536         sl = strlen(cmd)-1;
3537         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3538         {
3539                 cmd[sl] = '\0';
3540         }
3541         sl = strlen(cmd)-1;
3542         while (cmd[sl] == ' ') // strip trailing spaces
3543         {
3544                 cmd[sl] = '\0';
3545                 sl = strlen(cmd)-1;
3546         }
3547
3548         if (!cmd[0])
3549         {
3550                 return;
3551         }
3552         log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
3553         tidystring(cmd);
3554         if ((user) && (cmd))
3555         {
3556                 process_command(user,cmd);
3557         }
3558 }
3559
3560 void DoSync(serverrec* serv, char* tcp_host)
3561 {
3562         char data[MAXBUF];
3563         log(DEBUG,"Sending sync");
3564         // send start of sync marker: Y <timestamp>
3565         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3566         // except the ones its receiving it from.
3567         snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
3568         serv->SendPacket(data,tcp_host);
3569         // send users and channels
3570
3571         NetSendMyRoutingTable();
3572
3573         // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
3574         for (int j = 0; j < 32; j++)
3575         {
3576                 if (me[j] != NULL)
3577                 {
3578                         for (int k = 0; k < me[j]->connectors.size(); k++)
3579                         {
3580                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3581                                 {
3582                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3583                                         serv->SendPacket(data,tcp_host);
3584                                 }
3585                         }
3586                 }
3587         }
3588
3589         // send our version for the remote side to cache
3590         snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
3591         serv->SendPacket(data,tcp_host);
3592
3593         // sync the users and channels, give the modules a look-in.
3594         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3595         {
3596                 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);
3597                 serv->SendPacket(data,tcp_host);
3598                 if (strchr(u->second->modes,'o'))
3599                 {
3600                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3601                         serv->SendPacket(data,tcp_host);
3602                 }
3603                 for (int i = 0; i <= MODCOUNT; i++)
3604                 {
3605                         string_list l = modules[i]->OnUserSync(u->second);
3606                         for (int j = 0; j < l.size(); j++)
3607                         {
3608                                 strlcpy(data,l[j].c_str(),MAXBUF);
3609                                 serv->SendPacket(data,tcp_host);
3610                         }
3611                 }
3612                 char* chl = chlist(u->second,u->second);
3613                 if (strcmp(chl,""))
3614                 {
3615                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
3616                         serv->SendPacket(data,tcp_host);
3617                 }
3618         }
3619         // send channel modes, topics etc...
3620         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3621         {
3622                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3623                 serv->SendPacket(data,tcp_host);
3624                 for (int i = 0; i <= MODCOUNT; i++)
3625                 {
3626                         string_list l = modules[i]->OnChannelSync(c->second);
3627                         for (int j = 0; j < l.size(); j++)
3628                         {
3629                                 strlcpy(data,l[j].c_str(),MAXBUF);
3630                                 serv->SendPacket(data,tcp_host);
3631                         }
3632                 }
3633                 if (c->second->topic[0])
3634                 {
3635                         snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3636                         serv->SendPacket(data,tcp_host);
3637                 }
3638                 // send current banlist
3639
3640                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3641                 {
3642                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3643                         serv->SendPacket(data,tcp_host);
3644                 }
3645         }
3646         // sync global zlines, glines, etc
3647         sync_xlines(serv,tcp_host);
3648
3649         snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
3650         serv->SendPacket(data,tcp_host);
3651         log(DEBUG,"Sent sync");
3652         // ircd sends its serverlist after the end of sync here
3653 }
3654
3655
3656 void NetSendMyRoutingTable()
3657 {
3658         // send out a line saying what is reachable to us.
3659         // E.g. if A is linked to B C and D, send out:
3660         // $ A B C D
3661         // if its only linked to B and D send out:
3662         // $ A B D
3663         // if it has no links, dont even send out the line at all.
3664         char buffer[MAXBUF];
3665         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3666         bool sendit = false;
3667         for (int i = 0; i < 32; i++)
3668         {
3669                 if (me[i] != NULL)
3670                 {
3671                         for (int j = 0; j < me[i]->connectors.size(); j++)
3672                         {
3673                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3674                                 {
3675                                         strlcat(buffer," ",MAXBUF);
3676                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3677                                         sendit = true;
3678                                 }
3679                         }
3680                 }
3681         }
3682         if (sendit)
3683                 NetSendToAll(buffer);
3684 }
3685
3686
3687 void DoSplit(const char* params)
3688 {
3689         bool go_again = true;
3690         while (go_again)
3691         {
3692                 go_again = false;
3693                 for (int i = 0; i < 32; i++)
3694                 {
3695                         if (me[i] != NULL)
3696                         {
3697                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3698                                 {
3699                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3700                                         {
3701                                                 j->routes.clear();
3702                                                 j->CloseConnection();
3703                                                 me[i]->connectors.erase(j);
3704                                                 go_again = true;
3705                                                 break;
3706                                         }
3707                                 }
3708                         }
3709                 }
3710         }
3711         log(DEBUG,"Removed server. Will remove clients...");
3712         // iterate through the userlist and remove all users on this server.
3713         // because we're dealing with a mesh, we dont have to deal with anything
3714         // "down-route" from this server (nice huh)
3715         go_again = true;
3716         char reason[MAXBUF];
3717         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3718         while (go_again)
3719         {
3720                 go_again = false;
3721                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3722                 {
3723                         if (!strcasecmp(u->second->server,params))
3724                         {
3725                                 kill_link(u->second,reason);
3726                                 go_again = true;
3727                                 break;
3728                         }
3729                 }
3730         }
3731 }
3732
3733 // removes a server. Will NOT remove its users!
3734
3735 void RemoveServer(const char* name)
3736 {
3737         bool go_again = true;
3738         while (go_again)
3739         {
3740                 go_again = false;
3741                 for (int i = 0; i < 32; i++)
3742                 {
3743                         if (me[i] != NULL)
3744                         {
3745                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3746                                 {
3747                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3748                                         {
3749                                                 j->routes.clear();
3750                                                 j->CloseConnection();
3751                                                 me[i]->connectors.erase(j);
3752                                                 go_again = true;
3753                                                 break;
3754                                         }
3755                                 }
3756                         }
3757                 }
3758         }
3759 }
3760
3761
3762 char MODERR[MAXBUF];
3763
3764 char* ModuleError()
3765 {
3766         return MODERR;
3767 }
3768
3769 void erase_factory(int j)
3770 {
3771         int v = 0;
3772         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3773         {
3774                 if (v == j)
3775                 {
3776                         factory.erase(t);
3777                         factory.push_back(NULL);
3778                         return;
3779                 }
3780                 v++;
3781         }
3782 }
3783
3784 void erase_module(int j)
3785 {
3786         int v1 = 0;
3787         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3788         {
3789                 if (v1 == j)
3790                 {
3791                         delete *m;
3792                         modules.erase(m);
3793                         modules.push_back(NULL);
3794                         break;
3795                 }
3796                 v1++;
3797         }
3798         int v2 = 0;
3799         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3800         {
3801                 if (v2 == j)
3802                 {
3803                        module_names.erase(v);
3804                        break;
3805                 }
3806                 v2++;
3807         }
3808
3809 }
3810
3811 bool UnloadModule(const char* filename)
3812 {
3813         std::string filename_str = filename;
3814         for (int j = 0; j != module_names.size(); j++)
3815         {
3816                 if (module_names[j] == filename_str)
3817                 {
3818                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3819                         {
3820                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3821                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3822                                 return false;
3823                         }
3824                         // found the module
3825                         log(DEBUG,"Deleting module...");
3826                         erase_module(j);
3827                         log(DEBUG,"Erasing module entry...");
3828                         erase_factory(j);
3829                         log(DEBUG,"Removing dependent commands...");
3830                         removecommands(filename);
3831                         log(DEFAULT,"Module %s unloaded",filename);
3832                         MODCOUNT--;
3833                         return true;
3834                 }
3835         }
3836         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3837         snprintf(MODERR,MAXBUF,"Module not loaded");
3838         return false;
3839 }
3840
3841 bool DirValid(char* dirandfile)
3842 {
3843         char work[MAXBUF];
3844         strlcpy(work,dirandfile,MAXBUF);
3845         int p = strlen(work);
3846         // we just want the dir
3847         while (strlen(work))
3848         {
3849                 if (work[p] == '/')
3850                 {
3851                         work[p] = '\0';
3852                         break;
3853                 }
3854                 work[p--] = '\0';
3855         }
3856         char buffer[MAXBUF], otherdir[MAXBUF];
3857         // Get the current working directory
3858         if( getcwd( buffer, MAXBUF ) == NULL )
3859                 return false;
3860         chdir(work);
3861         if( getcwd( otherdir, MAXBUF ) == NULL )
3862                 return false;
3863         chdir(buffer);
3864         if (strlen(otherdir) >= strlen(work))
3865         {
3866                 otherdir[strlen(work)] = '\0';
3867                 if (!strcmp(otherdir,work))
3868                 {
3869                         return true;
3870                 }
3871                 return false;
3872         }
3873         else return false;
3874 }
3875
3876 std::string GetFullProgDir(char** argv, int argc)
3877 {
3878         char work[MAXBUF];
3879         strlcpy(work,argv[0],MAXBUF);
3880         int p = strlen(work);
3881         // we just want the dir
3882         while (strlen(work))
3883         {
3884                 if (work[p] == '/')
3885                 {
3886                         work[p] = '\0';
3887                         break;
3888                 }
3889                 work[p--] = '\0';
3890         }
3891         char buffer[MAXBUF], otherdir[MAXBUF];
3892         // Get the current working directory
3893         if( getcwd( buffer, MAXBUF ) == NULL )
3894                 return "";
3895         chdir(work);
3896         if( getcwd( otherdir, MAXBUF ) == NULL )
3897                 return "";
3898         chdir(buffer);
3899         return otherdir;
3900 }
3901
3902 bool LoadModule(const char* filename)
3903 {
3904         char modfile[MAXBUF];
3905         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3906         std::string filename_str = filename;
3907         if (!DirValid(modfile))
3908         {
3909                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3910                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3911                 return false;
3912         }
3913         log(DEBUG,"Loading module: %s",modfile);
3914         if (FileExists(modfile))
3915         {
3916                 for (int j = 0; j < module_names.size(); j++)
3917                 {
3918                         if (module_names[j] == filename_str)
3919                         {
3920                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3921                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3922                                 return false;
3923                         }
3924                 }
3925                 ircd_module* a = new ircd_module(modfile);
3926                 factory[MODCOUNT+1] = a;
3927                 if (factory[MODCOUNT+1]->LastError())
3928                 {
3929                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3930                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3931                         MODCOUNT--;
3932                         return false;
3933                 }
3934                 if (factory[MODCOUNT+1]->factory)
3935                 {
3936                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3937                         modules[MODCOUNT+1] = m;
3938                         /* save the module and the module's classfactory, if
3939                          * this isnt done, random crashes can occur :/ */
3940                         module_names.push_back(filename);
3941                 }
3942                 else
3943                 {
3944                         log(DEFAULT,"Unable to load %s",modfile);
3945                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3946                         return false;
3947                 }
3948         }
3949         else
3950         {
3951                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3952                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3953                 return false;
3954         }
3955         MODCOUNT++;
3956         return true;
3957 }
3958
3959 int InspIRCd(char** argv, int argc)
3960 {
3961         struct sockaddr_in client,server;
3962         char addrs[MAXBUF][255];
3963         int incomingSockfd, result = TRUE;
3964         socklen_t length;
3965         int count = 0;
3966         int selectResult = 0, selectResult2 = 0;
3967         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3968         fd_set selectFds;
3969         timeval tv;
3970
3971         std::string logpath = GetFullProgDir(argv,argc) + "/ircd.log";
3972         log_file = fopen(logpath.c_str(),"a+");
3973         if (!log_file)
3974         {
3975                 printf("ERROR: Could not write to logfile %s, bailing!\n\n",logpath.c_str());
3976                 Exit(ERROR);
3977         }
3978         printf("Logging to %s...\n",logpath.c_str());
3979
3980         log(DEFAULT,"$Id$");
3981         if (geteuid() == 0)
3982         {
3983                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3984                 Exit(ERROR);
3985                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3986         }
3987         SetupCommandTable();
3988         log(DEBUG,"InspIRCd: startup: default command table set up");
3989
3990         ReadConfig(true,NULL);
3991         if (DieValue[0])
3992         {
3993                 printf("WARNING: %s\n\n",DieValue);
3994                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3995                 exit(0);
3996         }
3997         log(DEBUG,"InspIRCd: startup: read config");
3998
3999         int clientportcount = 0, serverportcount = 0;
4000
4001         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
4002         {
4003                 ConfValue("bind","port",count,configToken,&config_f);
4004                 ConfValue("bind","address",count,Addr,&config_f);
4005                 ConfValue("bind","type",count,Type,&config_f);
4006                 if (!strcmp(Type,"servers"))
4007                 {
4008                         char Default[MAXBUF];
4009                         strcpy(Default,"no");
4010                         ConfValue("bind","default",count,Default,&config_f);
4011                         if (strchr(Default,'y'))
4012                         {
4013                                 defaultRoute = serverportcount;
4014                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
4015                         }
4016                         me[serverportcount] = new serverrec(ServerName,100L,false);
4017                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
4018                         {
4019                                 log(DEFAULT,"Warning: Failed to bind port %lu",(unsigned long)atoi(configToken));
4020                                 printf("Warning: Failed to bind port %lu\n",(unsigned long)atoi(configToken));
4021                         }
4022                         else
4023                         {
4024                                 serverportcount++;
4025                         }
4026                 }
4027                 else
4028                 {
4029                         ports[clientportcount] = atoi(configToken);
4030                         strlcpy(addrs[clientportcount],Addr,256);
4031                         clientportcount++;
4032                 }
4033                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
4034         }
4035         portCount = clientportcount;
4036         SERVERportCount = serverportcount;
4037
4038         log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)SERVERportCount);
4039         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
4040
4041         printf("\n");
4042
4043         /* BugFix By Craig! :p */
4044         MODCOUNT = -1;
4045         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
4046         {
4047                 ConfValue("module","name",count,configToken,&config_f);
4048                 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
4049                 if (!LoadModule(configToken))
4050                 {
4051                         log(DEFAULT,"Exiting due to a module loader error.");
4052                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
4053                         Exit(0);
4054                 }
4055         }
4056         log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
4057
4058         startup_time = time(NULL);
4059
4060         char PID[MAXBUF];
4061         ConfValue("pid","file",0,PID,&config_f);
4062         // write once here, to try it out and make sure its ok
4063         WritePID(PID);
4064
4065         /* setup select call */
4066 #ifndef USE_KQUEUE
4067         FD_ZERO(&selectFds);
4068 #endif
4069         log(DEBUG,"InspIRCd: startup: zero selects");
4070         log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
4071
4072         for (count = 0; count < portCount; count++)
4073         {
4074                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
4075                 {
4076                         log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
4077                         return(ERROR);
4078                 }
4079                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
4080                 {
4081                         log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
4082                 }
4083                 else    /* well we at least bound to one socket so we'll continue */
4084                 {
4085                         boundPortCount++;
4086                 }
4087         }
4088
4089         log(DEBUG,"InspIRCd: startup: total bound ports %lu",(unsigned long)boundPortCount);
4090
4091         /* if we didn't bind to anything then abort */
4092         if (boundPortCount == 0)
4093         {
4094                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
4095                 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
4096                 return (ERROR);
4097         }
4098
4099
4100         printf("\nInspIRCd is now running!\n");
4101
4102         if (nofork)
4103         {
4104                 log(VERBOSE,"Not forking as -nofork was specified");
4105         }
4106         else
4107         {
4108                 if (DaemonSeed() == ERROR)
4109                 {
4110                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
4111                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
4112                         Exit(ERROR);
4113                 }
4114         }
4115
4116         // BUGFIX: We cannot initialize this before forking, as the kqueue data is not inherited by child processes!
4117 #ifdef USE_KQUEUE
4118         kq = kqueue();
4119         lkq = kqueue();
4120         skq = kqueue();
4121         if ((kq == -1) || (lkq == -1) || (skq == -1))
4122         {
4123                 log(DEFAULT,"main: kqueue() failed!");
4124                 printf("ERROR: could not initialise kqueue event system. Shutting down.\n");
4125                 Exit(ERROR);
4126         }
4127 #endif
4128
4129
4130 #ifdef USE_KQUEUE
4131         log(DEFAULT,"kqueue socket engine is enabled. Filling listen list.");
4132         for (count = 0; count < boundPortCount; count++)
4133         {
4134                 struct kevent ke;
4135                 log(DEBUG,"kqueue: Add listening socket to events, kq=%d socket=%d",lkq,openSockfd[count]);
4136                 EV_SET(&ke, openSockfd[count], EVFILT_READ, EV_ADD, 0, 5, NULL);
4137                 int i = kevent(lkq, &ke, 1, 0, 0, NULL);
4138                 if (i == -1)
4139                 {
4140                         log(DEFAULT,"main: add listen ports to kqueue failed!");
4141                         printf("ERROR: could not initialise listening sockets in kqueue. Shutting down.\n");
4142                 }
4143         }
4144         for (int t = 0; t != SERVERportCount; t++)
4145         {
4146                 struct kevent ke;
4147                 if (me[t])
4148                 {
4149                         log(DEBUG,"kqueue: Add listening SERVER socket to events, kq=%d socket=%d",skq,me[t]->fd);
4150                         EV_SET(&ke, me[t]->fd, EVFILT_READ, EV_ADD, 0, 5, NULL);
4151                         int i = kevent(skq, &ke, 1, 0, 0, NULL);
4152                         if (i == -1)
4153                         {
4154                                 log(DEFAULT,"main: add server listen ports to kqueue failed!");
4155                                 printf("ERROR: could not initialise listening server sockets in kqueue. Shutting down.\n");
4156                         }
4157                 }
4158         }
4159
4160
4161 #else
4162         log(DEFAULT,"Using standard select socket engine.");
4163 #endif
4164
4165         WritePID(PID);
4166
4167         length = sizeof (client);
4168         char tcp_msg[MAXBUF],tcp_host[MAXBUF];
4169
4170 #ifdef USE_KQUEUE
4171         struct kevent ke;
4172         struct kevent ke_list[33];
4173         struct timespec ts;
4174 #endif
4175         fd_set serverfds;
4176         timeval tvs;
4177         tvs.tv_usec = 10000L;
4178         tvs.tv_sec = 0;
4179         tv.tv_sec = 0;
4180         tv.tv_usec = 10000L;
4181         char data[65536];
4182         timeval tval;
4183         fd_set sfd;
4184         tval.tv_usec = 10000L;
4185         tval.tv_sec = 0;
4186         int total_in_this_set = 0;
4187         int i = 0, v = 0, j = 0, cycle_iter = 0;
4188         bool expire_run = false;
4189
4190         /* main loop, this never returns */
4191         for (;;)
4192         {
4193 #ifdef _POSIX_PRIORITY_SCHEDULING
4194                 sched_yield();
4195 #endif
4196 #ifndef USE_KQUEUE
4197                 FD_ZERO(&sfd);
4198 #endif
4199
4200                 // we only read time() once per iteration rather than tons of times!
4201                 OLDTIME = TIME;
4202                 TIME = time(NULL);
4203
4204                 dns_poll();
4205
4206                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
4207                 // them in a list, then reap the list every second or so.
4208                 if (((TIME % 5) == 0) && (!expire_run))
4209                 {
4210                         expire_lines();
4211                         FOREACH_MOD OnBackgroundTimer(TIME);
4212                         expire_run = true;
4213                         continue;
4214                 }
4215                 if ((TIME % 5) == 1)
4216                         expire_run = false;
4217
4218                 // fix by brain - this must be below any manipulation of the hashmap by modules
4219                 user_hash::iterator count2 = clientlist.begin();
4220
4221 #ifdef USE_KQUEUE
4222                 ts.tv_sec = 0;
4223                 ts.tv_nsec = 30000L;
4224                 i = kevent(skq, NULL, 0, &ke, 1, &ts);
4225                 if (i > 0)
4226                 {
4227                         log(DEBUG,"kqueue: Listening server socket event, i=%d, ke.ident=%d",i,ke.ident);
4228                         for (int x = 0; x != SERVERportCount; x++)
4229                         {
4230                                 if ((me[x]) && (ke.ident == me[x]->fd))
4231                                 {
4232
4233 #else
4234                 FD_ZERO(&serverfds);
4235                 for (int x = 0; x != SERVERportCount; x++)
4236                 {
4237                         if (me[x])
4238                                 FD_SET(me[x]->fd, &serverfds);
4239                 }
4240                 tvs.tv_usec = 30000L;
4241                 tvs.tv_sec = 0;
4242                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
4243                 if (servresult > 0)
4244                 {
4245                         for (int x = 0; x != SERVERportCount; x++)
4246                         {
4247                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
4248                                 {
4249 #endif
4250                                         char remotehost[MAXBUF],resolved[MAXBUF];
4251                                         length = sizeof (client);
4252                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
4253                                         if (incomingSockfd != -1)
4254                                         {
4255                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
4256                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
4257                                                 {
4258                                                         strlcpy(resolved,remotehost,MAXBUF);
4259                                                 }
4260                                                 // add to this connections ircd_connector vector
4261                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
4262                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
4263                                         }
4264                                 }
4265                         }
4266                 }
4267
4268                 for (int x = 0; x < SERVERportCount; x++)
4269                 {
4270                         std::deque<std::string> msgs;
4271                         msgs.clear();
4272                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
4273                         {
4274                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
4275                                 {
4276                                         strlcpy(tcp_msg,msgs[ctr].c_str(),MAXBUF);
4277                                         log(DEBUG,"Processing: %s",tcp_msg);
4278                                         if (!tcp_msg[0])
4279                                         {
4280                                                 log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
4281                                                 break;
4282                                         }
4283                                         // during a netburst, send all data to all other linked servers
4284                                         if ((((nb_start>0) && (tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))) || (is_uline(tcp_host)))
4285                                         {
4286                                                 if (is_uline(tcp_host))
4287                                                 {
4288                                                         if ((tcp_msg[0] != 'Y') && (tcp_msg[0] != 'X') && (tcp_msg[0] != 'F'))
4289                                                         {
4290                                                                 NetSendToAllExcept(tcp_host,tcp_msg);
4291                                                         }
4292                                                 }
4293                                                 else
4294                                                         NetSendToAllExcept(tcp_host,tcp_msg);
4295                                         }
4296                                         std::string msg = tcp_msg;
4297                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4298                                         strlcpy(tcp_msg,msg.c_str(),MAXBUF);
4299                                         handle_link_packet(tcp_msg, tcp_host, me[x]);
4300                                 }
4301                                 goto label;
4302                         }
4303                 }
4304
4305         while (count2 != clientlist.end())
4306         {
4307 #ifndef USE_KQUEUE
4308                 FD_ZERO(&sfd);
4309 #endif
4310
4311                 total_in_this_set = 0;
4312
4313                 user_hash::iterator xcount = count2;
4314                 user_hash::iterator endingiter = count2;
4315
4316                 if (count2 == clientlist.end()) break;
4317
4318                 userrec* curr = NULL;
4319
4320                 if (count2->second)
4321                         curr = count2->second;
4322
4323                 if ((curr) && (curr->fd != 0))
4324                 {
4325 #ifdef _POSIX_PRIORITY_SCHEDULING
4326         sched_yield();
4327 #endif
4328                         // assemble up to 64 sockets into an fd_set
4329                         // to implement a pooling mechanism.
4330                         //
4331                         // This should be up to 64x faster than the
4332                         // old implementation.
4333 #ifndef USE_KQUEUE
4334                         while (total_in_this_set < 1024)
4335                         {
4336                                 if (count2 != clientlist.end())
4337                                 {
4338                                         curr = count2->second;
4339                                         // we don't check the state of remote users.
4340                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4341                                         {
4342                                                 curr->FlushWriteBuf();
4343                                                 if (curr->GetWriteError() != "")
4344                                                 {
4345                                                         log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
4346                                                         kill_link(curr,curr->GetWriteError().c_str());
4347                                                         goto label;
4348                                                 }
4349
4350                                                 FD_SET (curr->fd, &sfd);
4351
4352                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4353                                                 // their connection class.
4354                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4355                                                 {
4356                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4357                                                         kill_link(curr,"Registration timeout");
4358                                                         goto label;
4359                                                 }
4360                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4361                                                 {
4362                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4363                                                         curr->dns_done = true;
4364                                                         statsDnsBad++;
4365                                                         FullConnectUser(curr);
4366                                                         goto label;
4367                                                 }
4368                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr))) // both NICK and USER... and DNS
4369                                                 {
4370                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4371                                                         FullConnectUser(curr);
4372                                                         goto label;
4373                                                 }
4374                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4375                                                 {
4376                                                         if ((!curr->lastping) && (curr->registered == 7))
4377                                                         {
4378                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4379                                                                 kill_link(curr,"Ping timeout");
4380                                                                 goto label;
4381                                                         }
4382                                                         Write(curr->fd,"PING :%s",ServerName);
4383                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4384                                                         curr->lastping = 0;
4385                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4386                                                 }
4387                                         }
4388                                         count2++;
4389                                         total_in_this_set++;
4390                                 }
4391                                 else break;
4392                         }
4393                         endingiter = count2;
4394                         count2 = xcount; // roll back to where we were
4395 #else
4396                         // 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.
4397                         // TODO: We dont need to do all this EVERY loop iteration, tone down the visits to this if we're using kqueue.
4398                         cycle_iter++;
4399                         if (cycle_iter > 10) while (count2 != clientlist.end())
4400                         {
4401                                 cycle_iter = 0;
4402                                 if (count2 != clientlist.end())
4403                                 {
4404                                         curr = count2->second;
4405                                         // we don't check the state of remote users.
4406                                         if ((curr->fd != -1) && (curr->fd != FD_MAGIC_NUMBER))
4407                                         {
4408
4409                                                 curr->FlushWriteBuf();
4410                                                 if (curr->GetWriteError() != "")
4411                                                 {
4412                                                         log(DEBUG,"InspIRCd: write error: %s",curr->GetWriteError().c_str());
4413                                                         kill_link(curr,curr->GetWriteError().c_str());
4414                                                         goto label;
4415                                                 }
4416
4417                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4418                                                 // their connection class.
4419                                                 if ((TIME > curr->timeout) && (curr->registered != 7))
4420                                                 {
4421                                                         log(DEBUG,"InspIRCd: registration timeout: %s",curr->nick);
4422                                                         kill_link(curr,"Registration timeout");
4423                                                         goto label;
4424                                                 }
4425                                                 if ((TIME > curr->signon) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4426                                                 {
4427                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK: %d %d",TIME,curr->signon);
4428                                                         curr->dns_done = true;
4429                                                         statsDnsBad++;
4430                                                         FullConnectUser(curr);
4431                                                         goto label;
4432                                                 }
4433                                                 if ((curr->dns_done) && (curr->registered == 3) && (AllModulesReportReady(curr)))
4434                                                 {
4435                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4436                                                         FullConnectUser(curr);
4437                                                         goto label;
4438                                                 }
4439                                                 if ((TIME > curr->nping) && (isnick(curr->nick)) && (curr->registered == 7))
4440                                                 {
4441                                                         if ((!curr->lastping) && (curr->registered == 7))
4442                                                         {
4443                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",curr->nick);
4444                                                                 kill_link(curr,"Ping timeout");
4445                                                                 goto label;
4446                                                         }
4447                                                         Write(curr->fd,"PING :%s",ServerName);
4448                                                         log(DEBUG,"InspIRCd: pinging: %s",curr->nick);
4449                                                         curr->lastping = 0;
4450                                                         curr->nping = TIME+curr->pingmax;       // was hard coded to 120
4451                                                 }
4452                                         }
4453                                 }
4454                                 else break;
4455                                 count2++;
4456                         }
4457                         // increment the counter right to the end of the list, as kqueue processes everything in one go
4458 #endif
4459
4460                         v = 0;
4461
4462 #ifdef USE_KQUEUE
4463                         ts.tv_sec = 0;
4464                         ts.tv_nsec = 1000L;
4465                         // for now, we only read 1 event. We could read soooo many more :)
4466                         int i = kevent(kq, NULL, 0, &ke, 1, &ts);
4467                         if (i > 0)
4468                         {
4469                                 log(DEBUG,"kevent call: kq=%d, i=%d",kq,i);
4470                                 // KQUEUE: kevent gives us ONE fd which is ready to have something done to it. Do something to it.
4471                                 userrec* cu = fd_ref_table[ke.ident];
4472 #else
4473                         tval.tv_usec = 1000L;
4474                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4475
4476                         // now loop through all of the items in this pool if any are waiting
4477                         if (selectResult2 > 0)
4478                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4479                         {
4480                                 // SELECT: we have to iterate...
4481                                 userrec* cu = count2a->second;
4482 #endif
4483
4484 #ifdef _POSIX_PRIORITY_SCHEDULING
4485                                 sched_yield();
4486 #endif
4487                                 result = EAGAIN;
4488 #ifdef USE_KQUEUE
4489                                 // KQUEUE: We already know we have a valid FD. No checks needed.
4490                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1))
4491 #else
4492                                 // SELECT: We don't know if our FD is valid.
4493                                 if ((cu->fd != FD_MAGIC_NUMBER) && (cu->fd != -1) && (FD_ISSET (cu->fd, &sfd)))
4494 #endif
4495                                 {
4496                                         log(DEBUG,"Data waiting on socket %d",cu->fd);
4497                                         int MOD_RESULT = 0;
4498                                         int result2 = 0;
4499                                         FOREACH_RESULT(OnRawSocketRead(cu->fd,data,65535,result2));
4500                                         if (!MOD_RESULT)
4501                                         {
4502                                                 result = read(cu->fd, data, 65535);
4503                                         }
4504                                         else result = result2;
4505                                         log(DEBUG,"Read result: %d",result);
4506                                         if (result)
4507                                         {
4508                                                 statsRecv += result;
4509                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4510                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4511                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4512                                                 for (int checker = 0; checker < result; checker++)
4513                                                 {
4514                                                         if ((data[checker] == 0) || (data[checker] == 7))
4515                                                                 data[checker] = ' ';
4516                                                 }
4517                                                 if (result > 0)
4518                                                         data[result] = '\0';
4519                                                 userrec* current = cu;
4520                                                 int currfd = current->fd;
4521                                                 int floodlines = 0;
4522                                                 // add the data to the users buffer
4523                                                 if (result > 0)
4524                                                 if (!current->AddBuffer(data))
4525                                                 {
4526                                                         // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
4527                                                         if (current->registered == 7)
4528                                                         {
4529                                                                 kill_link(current,"RecvQ exceeded");
4530                                                         }
4531                                                         else
4532                                                         {
4533                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4534                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4535                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4536                                                                 apply_lines();
4537                                                         }
4538                                                         goto label;
4539                                                 }
4540                                                 if (current->recvq.length() > NetBufferSize)
4541                                                 {
4542                                                         if (current->registered == 7)
4543                                                         {
4544                                                                 kill_link(current,"RecvQ exceeded");
4545                                                         }
4546                                                         else
4547                                                         {
4548                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4549                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4550                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4551                                                                 apply_lines();
4552                                                         }
4553                                                         goto label;
4554                                                 }
4555                                                 // while there are complete lines to process...
4556                                                 while (current->BufferIsReady())
4557                                                 {
4558                                                         floodlines++;
4559                                                         if (TIME > current->reset_due)
4560                                                         {
4561                                                                 current->reset_due = TIME + current->threshold;
4562                                                                 current->lines_in = 0;
4563                                                         }
4564                                                         current->lines_in++;
4565                                                         if (current->lines_in > current->flood)
4566                                                         {
4567                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4568                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4569                                                                 kill_link(current,"Excess flood");
4570                                                                 goto label;
4571                                                         }
4572                                                         if ((floodlines > current->flood) && (current->flood != 0))
4573                                                         {
4574                                                                 if (current->registered == 7)
4575                                                                 {
4576                                                                         log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4577                                                                         WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4578                                                                         kill_link(current,"Excess flood");
4579                                                                 }
4580                                                                 else
4581                                                                 {
4582                                                                         add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4583                                                                         apply_lines();
4584                                                                 }
4585                                                                 goto label;
4586                                                         }
4587                                                         char sanitized[MAXBUF];
4588                                                         // use GetBuffer to copy single lines into the sanitized string
4589                                                         std::string single_line = current->GetBuffer();
4590                                                         current->bytes_in += single_line.length();
4591                                                         current->cmds_in++;
4592                                                         if (single_line.length()>512)
4593                                                         {
4594                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4595                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4596                                                                 kill_link(current,"Excess flood");
4597                                                                 goto label;
4598                                                         }
4599                                                         strlcpy(sanitized,single_line.c_str(),MAXBUF);
4600                                                         if (*sanitized)
4601                                                         {
4602                                                                 userrec* old_comp = fd_ref_table[currfd];
4603                                                                 // we're gonna re-scan to check if the nick is gone, after every
4604                                                                 // command - if it has, we're gonna bail
4605                                                                 process_buffer(sanitized,current);
4606                                                                 // look for the user's record in case it's changed... if theyve quit,
4607                                                                 // we cant do anything more with their buffer, so bail.
4608                                                                 // there used to be an ugly, slow loop here. Now we have a reference
4609                                                                 // table, life is much easier (and FASTER)
4610                                                                 userrec* new_comp = fd_ref_table[currfd];
4611                                                                 if ((currfd < 0) || (!fd_ref_table[currfd]) || (old_comp != new_comp))
4612                                                                         goto label;
4613
4614                                                         }
4615                                                 }
4616                                                 goto label;
4617                                         }
4618
4619                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4620                                         {
4621                                                 log(DEBUG,"killing: %s",cu->nick);
4622                                                 kill_link(cu,strerror(errno));
4623                                                 goto label;
4624                                         }
4625                                 }
4626                                 // result EAGAIN means nothing read
4627                                 if (result == EAGAIN)
4628                                 {
4629                                 }
4630                                 else
4631                                 if (result == 0)
4632                                 {
4633 #ifndef USE_KQUEUE
4634                                         if (count2->second)
4635                                         {
4636 #endif
4637                                                 log(DEBUG,"InspIRCd: Exited: %s",cu->nick);
4638                                                 kill_link(cu,"Client exited");
4639                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4640                                                 log(DEBUG,"Bailing from client exit");
4641                                                 goto label;
4642 #ifndef USE_KQUEUE
4643                                         }
4644 #endif
4645                                 }
4646                                 else if (result > 0)
4647                                 {
4648                                 }
4649                         }
4650                 }
4651                 for (int q = 0; q < total_in_this_set; q++)
4652                 {
4653                         count2++;
4654                 }
4655         }
4656
4657 #ifdef _POSIX_PRIORITY_SCHEDULING
4658         sched_yield();
4659 #endif
4660
4661 #ifndef USE_KQUEUE
4662         // set up select call
4663         for (count = 0; count < boundPortCount; count++)
4664         {
4665                 FD_SET (openSockfd[count], &selectFds);
4666         }
4667
4668         tv.tv_usec = 30000L;
4669         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4670
4671         /* select is reporting a waiting socket. Poll them all to find out which */
4672         if (selectResult > 0)
4673         {
4674                 for (count = 0; count < boundPortCount; count++)
4675                 {
4676                         if (FD_ISSET (openSockfd[count], &selectFds))
4677                         {
4678 #else
4679         ts.tv_sec = 0;
4680         ts.tv_nsec = 30000L;
4681         i = kevent(lkq, NULL, 0, ke_list, 32, &ts);
4682         if (i > 0) for (j = 0; j < i; j++)
4683         {
4684                 log(DEBUG,"kqueue: Listening socket event, i=%d, ke.ident=%d",i,ke.ident);
4685                 // this isnt as efficient as it could be, we could create a reference table
4686                 // to reference bound ports by fd, but this isnt a big bottleneck as the actual
4687                 // number of listening ports on the average ircd is a small number (less than 20)
4688                 // compared to the number of clients (possibly over 2000)
4689                 for (count = 0; count < boundPortCount; count++)
4690                 {
4691                         if (ke_list[j].ident == openSockfd[count])
4692                         {
4693 #endif
4694                                 char target[MAXBUF], resolved[MAXBUF];
4695                                 length = sizeof (client);
4696                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4697
4698                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4699                                 strlcpy (resolved, target, MAXBUF);
4700
4701                                 if (incomingSockfd < 0)
4702                                 {
4703                                         WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
4704                                         log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
4705                                         statsRefused++;
4706                                 }
4707                                 else
4708                                 {
4709                                         FOREACH_MOD OnRawSocketAccept(incomingSockfd, resolved, ports[count]);
4710                                         statsAccept++;
4711                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4712                                         log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
4713                                 }
4714                                 //goto label;
4715                         }
4716                 }
4717         }
4718         label:
4719         if (0) {};
4720 #ifdef _POSIX_PRIORITY_SCHEDULING
4721         sched_yield();
4722         sched_yield();
4723 #endif
4724 }
4725 /* not reached */
4726 close (incomingSockfd);
4727 }
4728