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 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55 #include "mode.h"
  56 #include "commands.h"
  57 #include "xline.h"
  58 #include "inspstring.h"
  59 #include "dnsqueue.h"
  60
  61 #ifdef GCC3
  62 #define nspace __gnu_cxx
  63 #else
  64 #define nspace std
  65 #endif
  66
  67 int LogLevel = DEFAULT;
  68 char ServerName[MAXBUF];
  69 char Network[MAXBUF];
  70 char ServerDesc[MAXBUF];
  71 char AdminName[MAXBUF];
  72 char AdminEmail[MAXBUF];
  73 char AdminNick[MAXBUF];
  74 char diepass[MAXBUF];
  75 char restartpass[MAXBUF];
  76 char motd[MAXBUF];
  77 char rules[MAXBUF];
  78 char list[MAXBUF];
  79 char PrefixQuit[MAXBUF];
  80 char DieValue[MAXBUF];
  81 char DNSServer[MAXBUF];
  82 int debugging =  0;
  83 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  84 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  85 int DieDelay  =  5;
  86 time_t startup_time = time(NULL);
  87 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  88 extern int MaxWhoResults;
  89 time_t nb_start = 0;
  90 int dns_timeout = 5;
  91
  92 char DisabledCommands[MAXBUF];
  93
  94 bool AllowHalfop = true;
  95 bool AllowProtect = true;
  96 bool AllowFounder = true;
  97
  98 extern std::vector<Module*> modules;
  99 std::vector<std::string> module_names;
 100 extern std::vector<ircd_module*> factory;
 101
 102 extern int MODCOUNT;
 103 int openSockfd[MAXSOCKS];
 104 bool nofork = false;
 105 bool unlimitcore = false;
 106
 107 time_t TIME = time(NULL);
 108
 109 namespace nspace
 110 {
 111 #ifdef GCC34
 112         template<> struct hash<in_addr>
 113 #else
 114         template<> struct nspace::hash<in_addr>
 115 #endif
 116         {
 117                 size_t operator()(const struct in_addr &a) const
 118                 {
 119                         size_t q;
 120                         memcpy(&q,&a,sizeof(size_t));
 121                         return q;
 122                 }
 123         };
 124 #ifdef GCC34
 125         template<> struct hash<string>
 126 #else
 127         template<> struct nspace::hash<string>
 128 #endif
 129         {
 130                 size_t operator()(const string &s) const
 131                 {
 132                         char a[MAXBUF];
 133                         static struct hash<const char *> strhash;
 134                         strlcpy(a,s.c_str(),MAXBUF);
 135                         strlower(a);
 136                         return strhash(a);
 137                 }
 138         };
 139 }
 140
 141
 142 struct StrHashComp
 143 {
 144
 145         bool operator()(const string& s1, const string& s2) const
 146         {
 147                 char a[MAXBUF],b[MAXBUF];
 148                 strlcpy(a,s1.c_str(),MAXBUF);
 149                 strlcpy(b,s2.c_str(),MAXBUF);
 150                 strlower(a);
 151                 strlower(b);
 152                 return (strcasecmp(a,b) == 0);
 153         }
 154
 155 };
 156
 157 struct InAddr_HashComp
 158 {
 159
 160         bool operator()(const in_addr &s1, const in_addr &s2) const
 161         {
 162                 size_t q;
 163                 size_t p;
 164
 165                 memcpy(&q,&s1,sizeof(size_t));
 166                 memcpy(&p,&s2,sizeof(size_t));
 167
 168                 return (q == p);
 169         }
 170
 171 };
 172
 173
 174 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 175 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 176 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 177 typedef std::deque<command_t> command_table;
 178
 179 serverrec* me[32];
 180
 181 FILE *log_file;
 182
 183 user_hash clientlist;
 184 chan_hash chanlist;
 185 user_hash whowas;
 186 command_table cmdlist;
 187 file_cache MOTD;
 188 file_cache RULES;
 189 address_cache IP;
 190
 191 ClassVector Classes;
 192
 193 struct linger linger = { 0 };
 194 char MyExecutable[1024];
 195 int boundPortCount = 0;
 196 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 197 int defaultRoute = 0;
 198 char ModPath[MAXBUF];
 199
 200 /* prototypes */
 201
 202 int has_channel(userrec *u, chanrec *c);
 203 int usercount(chanrec *c);
 204 int usercount_i(chanrec *c);
 205 char* Passwd(userrec *user);
 206 bool IsDenied(userrec *user);
 207 void AddWhoWas(userrec* u);
 208
 209 std::vector<long> auth_cookies;
 210 std::stringstream config_f(stringstream::in | stringstream::out);
 211
 212 std::vector<userrec*> all_opers;
 213
 214 void AddOper(userrec* user)
 215 {
 216         log(DEBUG,"Oper added to optimization list");
 217         all_opers.push_back(user);
 218 }
 219
 220 void DeleteOper(userrec* user)
 221 {
 222         for (std::vector<userrec*>::iterator a = all_opers.begin(); a < all_opers.end(); a++)
 223         {
 224                 if (*a == user)
 225                 {
 226                         log(DEBUG,"Oper removed from optimization list");
 227                         all_opers.erase(a);
 228                         return;
 229                 }
 230         }
 231 }
 232
 233 long GetRevision()
 234 {
 235         char Revision[] = "$Revision$";
 236         char *s1 = Revision;
 237         char *savept;
 238         char *v2 = strtok_r(s1," ",&savept);
 239         s1 = savept;
 240         v2 = strtok_r(s1," ",&savept);
 241         s1 = savept;
 242         return (long)(atof(v2)*10000);
 243 }
 244
 245
 246 std::string getservername()
 247 {
 248         return ServerName;
 249 }
 250
 251 std::string getserverdesc()
 252 {
 253         return ServerDesc;
 254 }
 255
 256 std::string getnetworkname()
 257 {
 258         return Network;
 259 }
 260
 261 std::string getadminname()
 262 {
 263         return AdminName;
 264 }
 265
 266 std::string getadminemail()
 267 {
 268         return AdminEmail;
 269 }
 270
 271 std::string getadminnick()
 272 {
 273         return AdminNick;
 274 }
 275
 276 void log(int level,char *text, ...)
 277 {
 278         char textbuffer[MAXBUF];
 279         va_list argsPtr;
 280         time_t rawtime;
 281         struct tm * timeinfo;
 282         if (level < LogLevel)
 283                 return;
 284
 285         time(&rawtime);
 286         timeinfo = localtime (&rawtime);
 287
 288         if (log_file)
 289         {
 290                 char b[MAXBUF];
 291                 va_start (argsPtr, text);
 292                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 293                 va_end(argsPtr);
 294                 strlcpy(b,asctime(timeinfo),MAXBUF);
 295                 b[24] = ':';    // we know this is the end of the time string
 296                 fprintf(log_file,"%s %s\n",b,textbuffer);
 297                 if (nofork)
 298                 {
 299                         // nofork enabled? display it on terminal too
 300                         printf("%s %s\n",b,textbuffer);
 301                 }
 302         }
 303 }
 304
 305 void readfile(file_cache &F, const char* fname)
 306 {
 307         FILE* file;
 308         char linebuf[MAXBUF];
 309
 310         log(DEBUG,"readfile: loading %s",fname);
 311         F.clear();
 312         file =  fopen(fname,"r");
 313         if (file)
 314         {
 315                 while (!feof(file))
 316                 {
 317                         fgets(linebuf,sizeof(linebuf),file);
 318                         linebuf[strlen(linebuf)-1]='\0';
 319                         if (linebuf[0] == 0)
 320                         {
 321                                 strcpy(linebuf,"  ");
 322                         }
 323                         if (!feof(file))
 324                         {
 325                                 F.push_back(linebuf);
 326                         }
 327                 }
 328                 fclose(file);
 329         }
 330         else
 331         {
 332                 log(DEBUG,"readfile: failed to load file: %s",fname);
 333         }
 334         log(DEBUG,"readfile: loaded %s, %lu lines",fname,(unsigned long)F.size());
 335 }
 336
 337 void ReadConfig(bool bail, userrec* user)
 338 {
 339         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 340         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF],thold[MAXBUF];
 341         ConnectClass c;
 342         std::stringstream errstr;
 343
 344         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 345         {
 346                 errstr.seekg(0);
 347                 if (bail)
 348                 {
 349                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 350                         Exit(0);
 351                 }
 352                 else
 353                 {
 354                         char dataline[1024];
 355                         if (user)
 356                         {
 357                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 358                                 while (!errstr.eof())
 359                                 {
 360                                         errstr.getline(dataline,1024);
 361                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 362                                 }
 363                         }
 364                         else
 365                         {
 366                                 WriteOpers("There were errors in the configuration file:",user->nick);
 367                                 while (!errstr.eof())
 368                                 {
 369                                         errstr.getline(dataline,1024);
 370                                         WriteOpers(dataline);
 371                                 }
 372                         }
 373                         return;
 374                 }
 375         }
 376
 377         ConfValue("server","name",0,ServerName,&config_f);
 378         ConfValue("server","description",0,ServerDesc,&config_f);
 379         ConfValue("server","network",0,Network,&config_f);
 380         ConfValue("admin","name",0,AdminName,&config_f);
 381         ConfValue("admin","email",0,AdminEmail,&config_f);
 382         ConfValue("admin","nick",0,AdminNick,&config_f);
 383         ConfValue("files","motd",0,motd,&config_f);
 384         ConfValue("files","rules",0,rules,&config_f);
 385         ConfValue("power","diepass",0,diepass,&config_f);
 386         ConfValue("power","pause",0,pauseval,&config_f);
 387         ConfValue("power","restartpass",0,restartpass,&config_f);
 388         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 389         ConfValue("die","value",0,DieValue,&config_f);
 390         ConfValue("options","loglevel",0,dbg,&config_f);
 391         ConfValue("options","netbuffersize",0,NB,&config_f);
 392         ConfValue("options","maxwho",0,MW,&config_f);
 393         ConfValue("options","allowhalfop",0,AH,&config_f);
 394         ConfValue("options","allowprotect",0,AP,&config_f);
 395         ConfValue("options","allowfounder",0,AF,&config_f);
 396         ConfValue("dns","server",0,DNSServer,&config_f);
 397         ConfValue("dns","timeout",0,DNT,&config_f);
 398         ConfValue("options","moduledir",0,ModPath,&config_f);
 399         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 400
 401         NetBufferSize = atoi(NB);
 402         MaxWhoResults = atoi(MW);
 403         dns_timeout = atoi(DNT);
 404         if (!dns_timeout)
 405                 dns_timeout = 5;
 406         if (!DNSServer[0])
 407                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 408         if (!ModPath[0])
 409                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 410         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 411         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 412         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 413         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 414         {
 415                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 416                 NetBufferSize = 10240;
 417         }
 418         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 419         {
 420                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 421                 MaxWhoResults = 128;
 422         }
 423         if (!strcmp(dbg,"debug"))
 424                 LogLevel = DEBUG;
 425         if (!strcmp(dbg,"verbose"))
 426                 LogLevel = VERBOSE;
 427         if (!strcmp(dbg,"default"))
 428                 LogLevel = DEFAULT;
 429         if (!strcmp(dbg,"sparse"))
 430                 LogLevel = SPARSE;
 431         if (!strcmp(dbg,"none"))
 432                 LogLevel = NONE;
 433         readfile(MOTD,motd);
 434         log(DEFAULT,"Reading message of the day...");
 435         readfile(RULES,rules);
 436         log(DEFAULT,"Reading connect classes...");
 437         Classes.clear();
 438         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 439         {
 440                 strcpy(Value,"");
 441                 ConfValue("connect","allow",i,Value,&config_f);
 442                 ConfValue("connect","timeout",i,timeout,&config_f);
 443                 ConfValue("connect","flood",i,flood,&config_f);
 444                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 445                 ConfValue("connect","threshold",i,thold,&config_f);
 446                 if (Value[0])
 447                 {
 448                         strlcpy(c.host,Value,MAXBUF);
 449                         c.type = CC_ALLOW;
 450                         strlcpy(Value,"",MAXBUF);
 451                         ConfValue("connect","password",i,Value,&config_f);
 452                         strlcpy(c.pass,Value,MAXBUF);
 453                         c.registration_timeout = 90; // default is 2 minutes
 454                         c.pingtime = 120;
 455                         c.flood = atoi(flood);
 456                         c.threshold = 5;
 457                         if (atoi(thold)>0)
 458                         {
 459                                 c.threshold = atoi(thold);
 460                         }
 461                         if (atoi(timeout)>0)
 462                         {
 463                                 c.registration_timeout = atoi(timeout);
 464                         }
 465                         if (atoi(pfreq)>0)
 466                         {
 467                                 c.pingtime = atoi(pfreq);
 468                         }
 469                         Classes.push_back(c);
 470                         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);
 471                 }
 472                 else
 473                 {
 474                         ConfValue("connect","deny",i,Value,&config_f);
 475                         strlcpy(c.host,Value,MAXBUF);
 476                         c.type = CC_DENY;
 477                         Classes.push_back(c);
 478                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 479                 }
 480
 481         }
 482         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 483         read_xline_defaults();
 484         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 485         apply_lines();
 486         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 487         if (!bail)
 488         {
 489                 log(DEFAULT,"Adding and removing modules due to rehash...");
 490
 491                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 492
 493                 // store the old module names
 494                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 495                 {
 496                         old_module_names.push_back(*t);
 497                 }
 498
 499                 // get the new module names
 500                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 501                 {
 502                         ConfValue("module","name",count2,Value,&config_f);
 503                         new_module_names.push_back(Value);
 504                 }
 505
 506                 // now create a list of new modules that are due to be loaded
 507                 // and a seperate list of modules which are due to be unloaded
 508                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 509                 {
 510                         bool added = true;
 511                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 512                         {
 513                                 if (*old == *_new)
 514                                         added = false;
 515                         }
 516                         if (added)
 517                                 added_modules.push_back(*_new);
 518                 }
 519                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 520                 {
 521                         bool removed = true;
 522                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 523                         {
 524                                 if (*newm == *oldm)
 525                                         removed = false;
 526                         }
 527                         if (removed)
 528                                 removed_modules.push_back(*oldm);
 529                 }
 530                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 531                 // to be removed.
 532                 int rem = 0, add = 0;
 533                 if (!removed_modules.empty())
 534                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 535                 {
 536                         if (UnloadModule(removing->c_str()))
 537                         {
 538                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 539                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 540                                 rem++;
 541                         }
 542                         else
 543                         {
 544                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 545                         }
 546                 }
 547                 if (!added_modules.empty())
 548                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 549                 {
 550                         if (LoadModule(adding->c_str()))
 551                         {
 552                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 553                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 554                                 add++;
 555                         }
 556                         else
 557                         {
 558                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 559                         }
 560                 }
 561                 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());
 562         }
 563 }
 564
 565 /* write formatted text to a socket, in same format as printf */
 566
 567 void Write(int sock,char *text, ...)
 568 {
 569         if (sock == FD_MAGIC_NUMBER)
 570                 return;
 571         if (!text)
 572         {
 573                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 574                 return;
 575         }
 576         char textbuffer[MAXBUF];
 577         va_list argsPtr;
 578         char tb[MAXBUF];
 579
 580         va_start (argsPtr, text);
 581         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 582         va_end(argsPtr);
 583         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 584         chop(tb);
 585         if (sock != -1)
 586         {
 587                 write(sock,tb,bytes > 514 ? 514 : bytes);
 588         }
 589 }
 590
 591 /* write a server formatted numeric response to a single socket */
 592
 593 void WriteServ(int sock, char* text, ...)
 594 {
 595         if (sock == FD_MAGIC_NUMBER)
 596                 return;
 597         if (!text)
 598         {
 599                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 600                 return;
 601         }
 602         char textbuffer[MAXBUF],tb[MAXBUF];
 603         va_list argsPtr;
 604         va_start (argsPtr, text);
 605
 606         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 607         va_end(argsPtr);
 608         int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 609         chop(tb);
 610         if (sock != -1)
 611         {
 612                 write(sock,tb,bytes > 514 ? 514 : bytes);
 613         }
 614 }
 615
 616 /* write text from an originating user to originating user */
 617
 618 void WriteFrom(int sock, userrec *user,char* text, ...)
 619 {
 620         if (sock == FD_MAGIC_NUMBER)
 621                 return;
 622         if ((!text) || (!user))
 623         {
 624                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 625                 return;
 626         }
 627         char textbuffer[MAXBUF],tb[MAXBUF];
 628         va_list argsPtr;
 629         va_start (argsPtr, text);
 630
 631         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 632         va_end(argsPtr);
 633         int bytes = snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 634         chop(tb);
 635         if (sock != -1)
 636         {
 637                 write(sock,tb,bytes > 514 ? 514 : bytes);
 638         }
 639 }
 640
 641 /* write text to an destination user from a source user (e.g. user privmsg) */
 642
 643 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 644 {
 645         if ((!dest) || (!data))
 646         {
 647                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 648                 return;
 649         }
 650         if (dest->fd == FD_MAGIC_NUMBER)
 651                 return;
 652         char textbuffer[MAXBUF],tb[MAXBUF];
 653         va_list argsPtr;
 654         va_start (argsPtr, data);
 655         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 656         va_end(argsPtr);
 657         chop(tb);
 658
 659         // if no source given send it from the server.
 660         if (!source)
 661         {
 662                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 663         }
 664         else
 665         {
 666                 WriteFrom(dest->fd,source,"%s",textbuffer);
 667         }
 668 }
 669
 670 /* write formatted text from a source user to all users on a channel
 671  * including the sender (NOT for privmsg, notice etc!) */
 672
 673 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 674 {
 675         if ((!Ptr) || (!user) || (!text))
 676         {
 677                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 678                 return;
 679         }
 680         char textbuffer[MAXBUF];
 681         va_list argsPtr;
 682         va_start (argsPtr, text);
 683         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 684         va_end(argsPtr);
 685
 686         std::vector<char*> *ulist = Ptr->GetUsers();
 687         for (int j = 0; j < ulist->size(); j++)
 688         {
 689                 char* o = (*ulist)[j];
 690                 userrec* otheruser = (userrec*)o;
 691                 if (otheruser->fd != FD_MAGIC_NUMBER)
 692                         WriteTo(user,otheruser,"%s",textbuffer);
 693         }
 694 }
 695
 696 /* write formatted text from a source user to all users on a channel
 697  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 698  * users on remote servers */
 699
 700 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 701 {
 702         if ((!Ptr) || (!text))
 703         {
 704                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 705                 return;
 706         }
 707         char textbuffer[MAXBUF];
 708         va_list argsPtr;
 709         va_start (argsPtr, text);
 710         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 711         va_end(argsPtr);
 712
 713         std::vector<char*> *ulist = Ptr->GetUsers();
 714         for (int j = 0; j < ulist->size(); j++)
 715         {
 716                 char* o = (*ulist)[j];
 717                 userrec* otheruser = (userrec*)o;
 718                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 719                 {
 720                         if (!user)
 721                         {
 722                                 WriteServ(otheruser->fd,"%s",textbuffer);
 723                         }
 724                         else
 725                         {
 726                                 WriteTo(user,otheruser,"%s",textbuffer);
 727                         }
 728                 }
 729         }
 730 }
 731
 732
 733 void WriteChannelWithServ(char* ServName, chanrec* Ptr, char* text, ...)
 734 {
 735         if ((!Ptr) || (!text))
 736         {
 737                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 738                 return;
 739         }
 740         char textbuffer[MAXBUF];
 741         va_list argsPtr;
 742         va_start (argsPtr, text);
 743         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 744         va_end(argsPtr);
 745
 746
 747         std::vector<char*> *ulist = Ptr->GetUsers();
 748         for (int j = 0; j < ulist->size(); j++)
 749         {
 750                 char* o = (*ulist)[j];
 751                 userrec* otheruser = (userrec*)o;
 752                 if (otheruser->fd != FD_MAGIC_NUMBER)
 753                         WriteServ(otheruser->fd,"%s",textbuffer);
 754         }
 755 }
 756
 757
 758 /* write formatted text from a source user to all users on a channel except
 759  * for the sender (for privmsg etc) */
 760
 761 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 762 {
 763         if ((!Ptr) || (!user) || (!text))
 764         {
 765                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 766                 return;
 767         }
 768         char textbuffer[MAXBUF];
 769         va_list argsPtr;
 770         va_start (argsPtr, text);
 771         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 772         va_end(argsPtr);
 773
 774         std::vector<char*> *ulist = Ptr->GetUsers();
 775         for (int j = 0; j < ulist->size(); j++)
 776         {
 777                 char* o = (*ulist)[j];
 778                 userrec* otheruser = (userrec*)o;
 779                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 780                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 781         }
 782 }
 783
 784
 785 std::string GetServerDescription(char* servername)
 786 {
 787         for (int j = 0; j < 32; j++)
 788         {
 789                 if (me[j] != NULL)
 790                 {
 791                         for (int k = 0; k < me[j]->connectors.size(); k++)
 792                         {
 793                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 794                                 {
 795                                         return me[j]->connectors[k].GetDescription();
 796                                 }
 797                         }
 798                 }
 799                 return ServerDesc; // not a remote server that can be found, it must be me.
 800         }
 801 }
 802
 803
 804 /* write a formatted string to all users who share at least one common
 805  * channel, including the source user e.g. for use in NICK */
 806
 807 void WriteCommon(userrec *u, char* text, ...)
 808 {
 809         if (!u)
 810         {
 811                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 812                 return;
 813         }
 814
 815         if (u->registered != 7) {
 816                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 817                 return;
 818         }
 819
 820         char textbuffer[MAXBUF];
 821         va_list argsPtr;
 822         va_start (argsPtr, text);
 823         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 824         va_end(argsPtr);
 825
 826         // FIX: Stops a message going to the same person more than once
 827         std::vector<int> already_sent;
 828
 829         for (int i = 0; i < MAXCHANS; i++)
 830         {
 831                 if (u->chans[i].channel)
 832                 {
 833                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 834                         for (int j = 0; j < ulist->size(); j++)
 835                         {
 836                                 char* o = (*ulist)[j];
 837                                 userrec* otheruser = (userrec*)o;
 838                                 bool do_send = true;
 839                                 for (int t = 0; t < already_sent.size(); t++)
 840                                 {
 841                                         if (already_sent[t] == otheruser->fd)
 842                                         {
 843                                                 do_send = false;
 844                                                 break;
 845                                         }
 846                                 }
 847                                 if (do_send)
 848                                 {
 849                                         already_sent.push_back(otheruser->fd);
 850                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 851                                 }
 852                         }
 853                 }
 854         }
 855         // if the user was not in any channels, no users will receive the text. Make sure the user
 856         // receives their OWN message for WriteCommon
 857         if (!already_sent.size())
 858         {
 859                 WriteFrom(u->fd,u,"%s",textbuffer);
 860         }
 861 }
 862
 863 /* write a formatted string to all users who share at least one common
 864  * channel, NOT including the source user e.g. for use in QUIT */
 865
 866 void WriteCommonExcept(userrec *u, char* text, ...)
 867 {
 868         if (!u)
 869         {
 870                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 871                 return;
 872         }
 873
 874         if (u->registered != 7) {
 875                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 876                 return;
 877         }
 878
 879         char textbuffer[MAXBUF];
 880         va_list argsPtr;
 881         va_start (argsPtr, text);
 882         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 883         va_end(argsPtr);
 884
 885         std::vector<int> already_sent;
 886
 887         for (int i = 0; i < MAXCHANS; i++)
 888         {
 889                 if (u->chans[i].channel)
 890                 {
 891                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 892                         for (int j = 0; j < ulist->size(); j++)
 893                         {
 894                                 char* o = (*ulist)[j];
 895                                 userrec* otheruser = (userrec*)o;
 896                                 if (u != otheruser)
 897                                 {
 898                                         bool do_send = true;
 899                                         for (int t = 0; t < already_sent.size(); t++)
 900                                         {
 901                                                 if (already_sent[t] == otheruser->fd)
 902                                                 {
 903                                                         do_send = false;
 904                                                         break;
 905                                                 }
 906                                         }
 907                                         if (do_send)
 908                                         {
 909                                                 already_sent.push_back(otheruser->fd);
 910                                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 911                                         }
 912                                 }
 913                         }
 914                 }
 915         }
 916 }
 917
 918 void WriteOpers(char* text, ...)
 919 {
 920         if (!text)
 921         {
 922                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 923                 return;
 924         }
 925
 926         char textbuffer[MAXBUF];
 927         va_list argsPtr;
 928         va_start (argsPtr, text);
 929         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 930         va_end(argsPtr);
 931
 932         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 933         {
 934                 userrec* a = *i;
 935                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 936                 {
 937                         if (strchr(a->modes,'s'))
 938                         {
 939                                 // send server notices to all with +s
 940                                 WriteServ(a->fd,"NOTICE %s :%s",a->nick,textbuffer);
 941                         }
 942                 }
 943         }
 944 }
 945
 946 void NoticeAllOpers(userrec *source, bool local_only, char* text, ...)
 947 {
 948         if ((!text) || (!source))
 949         {
 950                 log(DEFAULT,"*** BUG *** NoticeAllOpers was given an invalid parameter");
 951                 return;
 952         }
 953
 954         char textbuffer[MAXBUF];
 955         va_list argsPtr;
 956         va_start (argsPtr, text);
 957         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 958         va_end(argsPtr);
 959
 960         for (std::vector<userrec*>::iterator i = all_opers.begin(); i != all_opers.end(); i++)
 961         {
 962                 userrec* a = *i;
 963                 if ((a) && (a->fd != FD_MAGIC_NUMBER))
 964                 {
 965                         if (strchr(a->modes,'s'))
 966                         {
 967                                 // send server notices to all with +s
 968                                 WriteServ(a->fd,"NOTICE %s :*** Notice From %s: %s",a->nick,source->nick,textbuffer);
 969                         }
 970                 }
 971         }
 972
 973         if (!local_only)
 974         {
 975                 char buffer[MAXBUF];
 976                 snprintf(buffer,MAXBUF,"V %s @* :%s",source->nick,textbuffer);
 977                 NetSendToAll(buffer);
 978         }
 979 }
 980
 981 // returns TRUE of any users on channel C occupy server 'servername'.
 982
 983 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 984 {
 985         log(DEBUG,"ChanAnyOnThisServer");
 986
 987         std::vector<char*> *ulist = c->GetUsers();
 988         for (int j = 0; j < ulist->size(); j++)
 989         {
 990                 char* o = (*ulist)[j];
 991                 userrec* user = (userrec*)o;
 992                 if (!strcasecmp(user->server,servername))
 993                         return true;
 994         }
 995         return false;
 996 }
 997
 998 // returns true if user 'u' shares any common channels with any users on server 'servername'
 999
1000 bool CommonOnThisServer(userrec* u,const char* servername)
1001 {
1002         log(DEBUG,"ChanAnyOnThisServer");
1003
1004         for (int i = 0; i < MAXCHANS; i++)
1005         {
1006                 if (u->chans[i].channel)
1007                 {
1008                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1009                         for (int j = 0; j < ulist->size(); j++)
1010                         {
1011                                 char* o = (*ulist)[j];
1012                                 userrec* user = (userrec*)o;
1013                                 if (!strcasecmp(user->server,servername))
1014                                         return true;
1015                         }
1016                 }
1017         }
1018         return false;
1019 }
1020
1021
1022 void NetSendToCommon(userrec* u, char* s)
1023 {
1024         char buffer[MAXBUF];
1025         snprintf(buffer,MAXBUF,"%s",s);
1026
1027         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1028
1029         std::string msg = buffer;
1030         FOREACH_MOD OnPacketTransmit(msg,s);
1031         strlcpy(buffer,msg.c_str(),MAXBUF);
1032
1033         for (int j = 0; j < 32; j++)
1034         {
1035                 if (me[j] != NULL)
1036                 {
1037                         for (int k = 0; k < me[j]->connectors.size(); k++)
1038                         {
1039                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1040                                 {
1041                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1042                                 }
1043                         }
1044                 }
1045         }
1046 }
1047
1048
1049 void NetSendToAll(char* s)
1050 {
1051         char buffer[MAXBUF];
1052         snprintf(buffer,MAXBUF,"%s",s);
1053
1054         log(DEBUG,"NetSendToAll: '%s'",s);
1055
1056         std::string msg = buffer;
1057         FOREACH_MOD OnPacketTransmit(msg,s);
1058         strlcpy(buffer,msg.c_str(),MAXBUF);
1059
1060         for (int j = 0; j < 32; j++)
1061         {
1062                 if (me[j] != NULL)
1063                 {
1064                         for (int k = 0; k < me[j]->connectors.size(); k++)
1065                         {
1066                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1067                         }
1068                 }
1069         }
1070 }
1071
1072 void NetSendToAllAlive(char* s)
1073 {
1074         char buffer[MAXBUF];
1075         snprintf(buffer,MAXBUF,"%s",s);
1076
1077         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1078
1079         std::string msg = buffer;
1080         FOREACH_MOD OnPacketTransmit(msg,s);
1081         strlcpy(buffer,msg.c_str(),MAXBUF);
1082
1083         for (int j = 0; j < 32; j++)
1084         {
1085                 if (me[j] != NULL)
1086                 {
1087                         for (int k = 0; k < me[j]->connectors.size(); k++)
1088                         {
1089                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1090                                 {
1091                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1092                                 }
1093                                 else
1094                                 {
1095                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1096                                 }
1097                         }
1098                 }
1099         }
1100 }
1101
1102
1103 void NetSendToOne(char* target,char* s)
1104 {
1105         char buffer[MAXBUF];
1106         snprintf(buffer,MAXBUF,"%s",s);
1107
1108         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1109
1110         std::string msg = buffer;
1111         FOREACH_MOD OnPacketTransmit(msg,s);
1112         strlcpy(buffer,msg.c_str(),MAXBUF);
1113
1114         for (int j = 0; j < 32; j++)
1115         {
1116                 if (me[j] != NULL)
1117                 {
1118                         for (int k = 0; k < me[j]->connectors.size(); k++)
1119                         {
1120                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1121                                 {
1122                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1123                                 }
1124                         }
1125                 }
1126         }
1127 }
1128
1129 void NetSendToAllExcept(const char* target,char* s)
1130 {
1131         char buffer[MAXBUF];
1132         snprintf(buffer,MAXBUF,"%s",s);
1133
1134         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1135
1136         std::string msg = buffer;
1137         FOREACH_MOD OnPacketTransmit(msg,s);
1138         strlcpy(buffer,msg.c_str(),MAXBUF);
1139
1140         for (int j = 0; j < 32; j++)
1141         {
1142                 if (me[j] != NULL)
1143                 {
1144                         for (int k = 0; k < me[j]->connectors.size(); k++)
1145                         {
1146                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1147                                 {
1148                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1149                                 }
1150                         }
1151                 }
1152         }
1153 }
1154
1155
1156 void WriteMode(const char* modes, int flags, const char* text, ...)
1157 {
1158         if ((!text) || (!modes) || (!flags))
1159         {
1160                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1161                 return;
1162         }
1163
1164         char textbuffer[MAXBUF];
1165         va_list argsPtr;
1166         va_start (argsPtr, text);
1167         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1168         va_end(argsPtr);
1169         int modelen = strlen(modes);
1170
1171         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1172         {
1173                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1174                 {
1175                         bool send_to_user = false;
1176
1177                         if (flags == WM_AND)
1178                         {
1179                                 send_to_user = true;
1180                                 for (int n = 0; n < modelen; n++)
1181                                 {
1182                                         if (!hasumode(i->second,modes[n]))
1183                                         {
1184                                                 send_to_user = false;
1185                                                 break;
1186                                         }
1187                                 }
1188                         }
1189                         else if (flags == WM_OR)
1190                         {
1191                                 send_to_user = false;
1192                                 for (int n = 0; n < modelen; n++)
1193                                 {
1194                                         if (hasumode(i->second,modes[n]))
1195                                         {
1196                                                 send_to_user = true;
1197                                                 break;
1198                                         }
1199                                 }
1200                         }
1201
1202                         if (send_to_user)
1203                         {
1204                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1205                         }
1206                 }
1207         }
1208 }
1209
1210
1211 void NoticeAll(userrec *source, bool local_only, char* text, ...)
1212 {
1213         if ((!text) || (!source))
1214         {
1215                 log(DEFAULT,"*** BUG *** NoticeAll was given an invalid parameter");
1216                 return;
1217         }
1218
1219         char textbuffer[MAXBUF];
1220         va_list argsPtr;
1221         va_start (argsPtr, text);
1222         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1223         va_end(argsPtr);
1224
1225         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1226         {
1227                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1228                 {
1229                         WriteFrom(i->second->fd,source,"NOTICE $* :%s",textbuffer);
1230                 }
1231         }
1232
1233         if (!local_only)
1234         {
1235                 char buffer[MAXBUF];
1236                 snprintf(buffer,MAXBUF,"V %s * :%s",source->nick,textbuffer);
1237                 NetSendToAll(buffer);
1238         }
1239
1240 }
1241
1242 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1243 {
1244         if ((!text) || (!source))
1245         {
1246                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1247                 return;
1248         }
1249
1250         char textbuffer[MAXBUF];
1251         va_list argsPtr;
1252         va_start (argsPtr, text);
1253         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1254         va_end(argsPtr);
1255
1256         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1257         {
1258                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1259                 {
1260                         if (strchr(i->second->modes,'w'))
1261                         {
1262                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1263                         }
1264                 }
1265         }
1266
1267         if (!local_only)
1268         {
1269                 char buffer[MAXBUF];
1270                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1271                 NetSendToAll(buffer);
1272         }
1273 }
1274
1275 /* convert a string to lowercase. Note following special circumstances
1276  * taken from RFC 1459. Many "official" server branches still hold to this
1277  * rule so i will too;
1278  *
1279  *  Because of IRC's scandanavian origin, the characters {}| are
1280  *  considered to be the lower case equivalents of the characters []\,
1281  *  respectively. This is a critical issue when determining the
1282  *  equivalence of two nicknames.
1283  */
1284
1285 void strlower(char *n)
1286 {
1287         if (!n)
1288         {
1289                 return;
1290         }
1291         for (int i = 0; n[i] != 0; i++)
1292         {
1293                 n[i] = tolower(n[i]);
1294                 if (n[i] == '[')
1295                         n[i] = '{';
1296                 if (n[i] == ']')
1297                         n[i] = '}';
1298                 if (n[i] == '\\')
1299                         n[i] = '|';
1300         }
1301 }
1302
1303
1304
1305 /* Find a user record by nickname and return a pointer to it */
1306
1307 userrec* Find(std::string nick)
1308 {
1309         user_hash::iterator iter = clientlist.find(nick);
1310
1311         if (iter == clientlist.end())
1312                 /* Couldn't find it */
1313                 return NULL;
1314
1315         return iter->second;
1316 }
1317
1318 /* find a channel record by channel name and return a pointer to it */
1319
1320 chanrec* FindChan(const char* chan)
1321 {
1322         if (!chan)
1323         {
1324                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1325                 return NULL;
1326         }
1327
1328         chan_hash::iterator iter = chanlist.find(chan);
1329
1330         if (iter == chanlist.end())
1331                 /* Couldn't find it */
1332                 return NULL;
1333
1334         return iter->second;
1335 }
1336
1337
1338 long GetMaxBans(char* name)
1339 {
1340         char CM[MAXBUF];
1341         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1342         {
1343                 ConfValue("banlist","chan",count,CM,&config_f);
1344                 if (match(name,CM))
1345                 {
1346                         ConfValue("banlist","limit",count,CM,&config_f);
1347                         return atoi(CM);
1348                 }
1349         }
1350         return 64;
1351 }
1352
1353
1354 void purge_empty_chans(userrec* u)
1355 {
1356
1357         int go_again = 1, purge = 0;
1358
1359         // firstly decrement the count on each channel
1360         for (int f = 0; f < MAXCHANS; f++)
1361         {
1362                 if (u->chans[f].channel)
1363                 {
1364                         u->chans[f].channel->DecUserCounter();
1365                         u->chans[f].channel->DelUser((char*)u);
1366                 }
1367         }
1368
1369         for (int i = 0; i < MAXCHANS; i++)
1370         {
1371                 if (u->chans[i].channel)
1372                 {
1373                         if (!usercount(u->chans[i].channel))
1374                         {
1375                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1376                                 /* kill the record */
1377                                 if (i2 != chanlist.end())
1378                                 {
1379                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1380                                         if (i2->second)
1381                                                 delete i2->second;
1382                                         chanlist.erase(i2);
1383                                         go_again = 1;
1384                                         purge++;
1385                                         u->chans[i].channel = NULL;
1386                                 }
1387                         }
1388                         else
1389                         {
1390                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1391                         }
1392                 }
1393         }
1394         log(DEBUG,"completed channel purge, killed %lu",(unsigned long)purge);
1395
1396         DeleteOper(u);
1397 }
1398
1399
1400 char scratch[MAXBUF];
1401 char sparam[MAXBUF];
1402
1403 char* chanmodes(chanrec *chan)
1404 {
1405         if (!chan)
1406         {
1407                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1408                 strcpy(scratch,"");
1409                 return scratch;
1410         }
1411
1412         strcpy(scratch,"");
1413         strcpy(sparam,"");
1414         if (chan->noexternal)
1415         {
1416                 strlcat(scratch,"n",MAXMODES);
1417         }
1418         if (chan->topiclock)
1419         {
1420                 strlcat(scratch,"t",MAXMODES);
1421         }
1422         if (chan->key[0])
1423         {
1424                 strlcat(scratch,"k",MAXMODES);
1425         }
1426         if (chan->limit)
1427         {
1428                 strlcat(scratch,"l",MAXMODES);
1429         }
1430         if (chan->inviteonly)
1431         {
1432                 strlcat(scratch,"i",MAXMODES);
1433         }
1434         if (chan->moderated)
1435         {
1436                 strlcat(scratch,"m",MAXMODES);
1437         }
1438         if (chan->secret)
1439         {
1440                 strlcat(scratch,"s",MAXMODES);
1441         }
1442         if (chan->c_private)
1443         {
1444                 strlcat(scratch,"p",MAXMODES);
1445         }
1446         if (chan->key[0])
1447         {
1448                 strlcat(sparam," ",MAXBUF);
1449                 strlcat(sparam,chan->key,MAXBUF);
1450         }
1451         if (chan->limit)
1452         {
1453                 char foo[24];
1454                 sprintf(foo," %lu",(unsigned long)chan->limit);
1455                 strlcat(sparam,foo,MAXBUF);
1456         }
1457         if (*chan->custom_modes)
1458         {
1459                 strlcat(scratch,chan->custom_modes,MAXMODES);
1460                 for (int z = 0; chan->custom_modes[z] != 0; z++)
1461                 {
1462                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1463                         if (extparam != "")
1464                         {
1465                                 strlcat(sparam," ",MAXBUF);
1466                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1467                         }
1468                 }
1469         }
1470         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1471         strlcat(scratch,sparam,MAXMODES);
1472         return scratch;
1473 }
1474
1475
1476 /* compile a userlist of a channel into a string, each nick seperated by
1477  * spaces and op, voice etc status shown as @ and + */
1478
1479 void userlist(userrec *user,chanrec *c)
1480 {
1481         if ((!c) || (!user))
1482         {
1483                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1484                 return;
1485         }
1486
1487         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1488         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1489         {
1490                 if (has_channel(i->second,c))
1491                 {
1492                         if (isnick(i->second->nick))
1493                         {
1494                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1495                                 {
1496                                         /* user is +i, and source not on the channel, does not show
1497                                          * nick in NAMES list */
1498                                         continue;
1499                                 }
1500                                 strlcat(list,cmode(i->second,c),MAXBUF);
1501                                 strlcat(list,i->second->nick,MAXBUF);
1502                                 strlcat(list," ",MAXBUF);
1503                                 if (strlen(list)>(480-NICKMAX))
1504                                 {
1505                                         /* list overflowed into
1506                                          * multiple numerics */
1507                                         WriteServ(user->fd,"%s",list);
1508                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1509                                 }
1510                         }
1511                 }
1512         }
1513         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1514         {
1515                 WriteServ(user->fd,"%s",list);
1516         }
1517 }
1518
1519 /* return a count of the users on a specific channel accounting for
1520  * invisible users who won't increase the count. e.g. for /LIST */
1521
1522 int usercount_i(chanrec *c)
1523 {
1524         int count = 0;
1525
1526         if (!c)
1527         {
1528                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1529                 return 0;
1530         }
1531
1532         strcpy(list,"");
1533         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1534         {
1535                 if (i->second)
1536                 {
1537                         if (has_channel(i->second,c))
1538                         {
1539                                 if (isnick(i->second->nick))
1540                                 {
1541                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1542                                         {
1543                                                 /* user is +i, and source not on the channel, does not show
1544                                                  * nick in NAMES list */
1545                                                 continue;
1546                                         }
1547                                         count++;
1548                                 }
1549                         }
1550                 }
1551         }
1552         log(DEBUG,"usercount_i: %s %lu",c->name,(unsigned long)count);
1553         return count;
1554 }
1555
1556
1557 int usercount(chanrec *c)
1558 {
1559         if (!c)
1560         {
1561                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1562                 return 0;
1563         }
1564         int count = c->GetUserCounter();
1565         log(DEBUG,"usercount: %s %lu",c->name,(unsigned long)count);
1566         return count;
1567 }
1568
1569
1570 /* add a channel to a user, creating the record for it if needed and linking
1571  * it to the user record */
1572
1573 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1574 {
1575         if ((!user) || (!cn))
1576         {
1577                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1578                 return 0;
1579         }
1580
1581         chanrec* Ptr;
1582         int created = 0;
1583         char cname[MAXBUF];
1584
1585         strncpy(cname,cn,MAXBUF);
1586
1587         // we MUST declare this wherever we use FOREACH_RESULT
1588         int MOD_RESULT = 0;
1589
1590         if (strlen(cname) > CHANMAX-1)
1591         {
1592                 cname[CHANMAX-1] = '\0';
1593         }
1594
1595         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1596
1597         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1598         {
1599                 return NULL; // already on the channel!
1600         }
1601
1602
1603         if (!FindChan(cname))
1604         {
1605                 MOD_RESULT = 0;
1606                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1607                 if (MOD_RESULT == 1) {
1608                         return NULL;
1609                 }
1610
1611                 /* create a new one */
1612                 log(DEBUG,"add_channel: creating: %s",cname);
1613                 {
1614                         chanlist[cname] = new chanrec();
1615
1616                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1617                         chanlist[cname]->topiclock = 1;
1618                         chanlist[cname]->noexternal = 1;
1619                         chanlist[cname]->created = TIME;
1620                         strcpy(chanlist[cname]->topic, "");
1621                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1622                         chanlist[cname]->topicset = 0;
1623                         Ptr = chanlist[cname];
1624                         log(DEBUG,"add_channel: created: %s",cname);
1625                         /* set created to 2 to indicate user
1626                          * is the first in the channel
1627                          * and should be given ops */
1628                         created = 2;
1629                 }
1630         }
1631         else
1632         {
1633                 /* channel exists, just fish out a pointer to its struct */
1634                 Ptr = FindChan(cname);
1635                 if (Ptr)
1636                 {
1637                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1638
1639                         // the override flag allows us to bypass channel modes
1640                         // and bans (used by servers)
1641                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1642                         {
1643                                 log(DEBUG,"Not overriding...");
1644                                 MOD_RESULT = 0;
1645                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1646                                 if (MOD_RESULT == 1) {
1647                                         return NULL;
1648                                 }
1649                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1650
1651                                 if (!MOD_RESULT)
1652                                 {
1653                                         log(DEBUG,"add_channel: checking key, invite, etc");
1654                                         MOD_RESULT = 0;
1655                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1656                                         if (MOD_RESULT == 0)
1657                                         {
1658                                                 if (Ptr->key[0])
1659                                                 {
1660                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1661                                                         if (!key)
1662                                                         {
1663                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1664                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1665                                                                 return NULL;
1666                                                         }
1667                                                         else
1668                                                         {
1669                                                                 if (strcasecmp(key,Ptr->key))
1670                                                                 {
1671                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1672                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1673                                                                         return NULL;
1674                                                                 }
1675                                                         }
1676                                                 }
1677                                                 log(DEBUG,"add_channel: no key");
1678                                         }
1679                                         MOD_RESULT = 0;
1680                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1681                                         if (MOD_RESULT == 0)
1682                                         {
1683                                                 if (Ptr->inviteonly)
1684                                                 {
1685                                                         log(DEBUG,"add_channel: channel is +i");
1686                                                         if (user->IsInvited(Ptr->name))
1687                                                         {
1688                                                                 /* user was invited to channel */
1689                                                                 /* there may be an optional channel NOTICE here */
1690                                                         }
1691                                                         else
1692                                                         {
1693                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1694                                                                 return NULL;
1695                                                         }
1696                                                 }
1697                                                 log(DEBUG,"add_channel: channel is not +i");
1698                                         }
1699                                         MOD_RESULT = 0;
1700                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1701                                         if (MOD_RESULT == 0)
1702                                         {
1703                                                 if (Ptr->limit)
1704                                                 {
1705                                                         if (usercount(Ptr) >= Ptr->limit)
1706                                                         {
1707                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1708                                                                 return NULL;
1709                                                         }
1710                                                 }
1711                                         }
1712                                         log(DEBUG,"add_channel: about to walk banlist");
1713                                         MOD_RESULT = 0;
1714                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1715                                         if (MOD_RESULT == 0)
1716                                         {
1717                                                 /* check user against the channel banlist */
1718                                                 if (Ptr)
1719                                                 {
1720                                                         if (Ptr->bans.size())
1721                                                         {
1722                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1723                                                                 {
1724                                                                         if (match(user->GetFullHost(),i->data))
1725                                                                         {
1726                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1727                                                                                 return NULL;
1728                                                                         }
1729                                                                 }
1730                                                         }
1731                                                 }
1732                                                 log(DEBUG,"add_channel: bans checked");
1733                                         }
1734
1735                                 }
1736
1737
1738                                 if ((Ptr) && (user))
1739                                 {
1740                                         user->RemoveInvite(Ptr->name);
1741                                 }
1742
1743                                 log(DEBUG,"add_channel: invites removed");
1744
1745                         }
1746                         else
1747                         {
1748                                 log(DEBUG,"Overridden checks");
1749                         }
1750
1751
1752                 }
1753                 created = 1;
1754         }
1755
1756         log(DEBUG,"Passed channel checks");
1757
1758         for (int index =0; index != MAXCHANS; index++)
1759         {
1760                 log(DEBUG,"Check location %d",index);
1761                 if (user->chans[index].channel == NULL)
1762                 {
1763                         log(DEBUG,"Adding into their channel list at location %d",index);
1764
1765                         if (created == 2)
1766                         {
1767                                 /* first user in is given ops */
1768                                 user->chans[index].uc_modes = UCMODE_OP;
1769                         }
1770                         else
1771                         {
1772                                 user->chans[index].uc_modes = 0;
1773                         }
1774                         user->chans[index].channel = Ptr;
1775                         Ptr->IncUserCounter();
1776                         Ptr->AddUser((char*)user);
1777                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1778
1779                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1780                         {
1781                                 // use the stamdard J token with no privilages.
1782                                 char buffer[MAXBUF];
1783                                 if (created == 2)
1784                                 {
1785                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1786                                 }
1787                                 else
1788                                 {
1789                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1790                                 }
1791                                 NetSendToAll(buffer);
1792                         }
1793
1794                         log(DEBUG,"Sent JOIN to client");
1795
1796                         if (Ptr->topicset)
1797                         {
1798                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1799                                 WriteServ(user->fd,"333 %s %s %s %lu", user->nick, Ptr->name, Ptr->setby, (unsigned long)Ptr->topicset);
1800                         }
1801                         userlist(user,Ptr);
1802                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1803                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1804                         //WriteServ(user->fd,"329 %s %s %lu", user->nick, Ptr->name, (unsigned long)Ptr->created);
1805                         FOREACH_MOD OnUserJoin(user,Ptr);
1806                         return Ptr;
1807                 }
1808         }
1809         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1810         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1811         return NULL;
1812 }
1813
1814 /* remove a channel from a users record, and remove the record from memory
1815  * if the channel has become empty */
1816
1817 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1818 {
1819         if ((!user) || (!cname))
1820         {
1821                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1822                 return NULL;
1823         }
1824
1825         chanrec* Ptr;
1826
1827         if ((!cname) || (!user))
1828         {
1829                 return NULL;
1830         }
1831
1832         Ptr = FindChan(cname);
1833
1834         if (!Ptr)
1835         {
1836                 return NULL;
1837         }
1838
1839         FOREACH_MOD OnUserPart(user,Ptr);
1840         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1841
1842         for (int i =0; i != MAXCHANS; i++)
1843         {
1844                 /* zap it from the channel list of the user */
1845                 if (user->chans[i].channel == Ptr)
1846                 {
1847                         if (reason)
1848                         {
1849                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1850
1851                                 if (!local)
1852                                 {
1853                                         char buffer[MAXBUF];
1854                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1855                                         NetSendToAll(buffer);
1856                                 }
1857
1858
1859                         }
1860                         else
1861                         {
1862                                 if (!local)
1863                                 {
1864                                         char buffer[MAXBUF];
1865                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1866                                         NetSendToAll(buffer);
1867                                 }
1868
1869                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1870                         }
1871                         user->chans[i].uc_modes = 0;
1872                         user->chans[i].channel = NULL;
1873                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1874                         break;
1875                 }
1876         }
1877
1878         Ptr->DecUserCounter();
1879         Ptr->DelUser((char*)user);
1880
1881         /* if there are no users left on the channel */
1882         if (!usercount(Ptr))
1883         {
1884                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1885
1886                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1887
1888                 /* kill the record */
1889                 if (iter != chanlist.end())
1890                 {
1891                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1892                         if (iter->second) delete iter->second;
1893                         chanlist.erase(iter);
1894                 }
1895         }
1896 }
1897
1898
1899 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1900 {
1901         if ((!src) || (!user) || (!Ptr) || (!reason))
1902         {
1903                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1904                 return;
1905         }
1906
1907         if ((!Ptr) || (!user) || (!src))
1908         {
1909                 return;
1910         }
1911
1912         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1913
1914         if (!has_channel(user,Ptr))
1915         {
1916                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1917                 return;
1918         }
1919
1920         int MOD_RESULT = 0;
1921         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1922         if (MOD_RESULT == ACR_DENY)
1923                 return;
1924
1925         if (MOD_RESULT == ACR_DEFAULT)
1926         {
1927                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1928                 {
1929                         if (cstatus(src,Ptr) == STATUS_HOP)
1930                         {
1931                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1932                         }
1933                         else
1934                         {
1935                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1936                         }
1937
1938                         return;
1939                 }
1940         }
1941
1942         MOD_RESULT = 0;
1943         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1944         if (MOD_RESULT)
1945                 return;
1946
1947         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1948
1949         for (int i =0; i != MAXCHANS; i++)
1950         {
1951                 /* zap it from the channel list of the user */
1952                 if (user->chans[i].channel)
1953                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1954                 {
1955                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1956                         user->chans[i].uc_modes = 0;
1957                         user->chans[i].channel = NULL;
1958                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1959                         break;
1960                 }
1961         }
1962
1963         Ptr->DecUserCounter();
1964         Ptr->DelUser((char*)user);
1965
1966         /* if there are no users left on the channel */
1967         if (!usercount(Ptr))
1968         {
1969                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1970
1971                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1972
1973                 /* kill the record */
1974                 if (iter != chanlist.end())
1975                 {
1976                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1977                         if (iter->second) delete iter->second;
1978                         chanlist.erase(iter);
1979                 }
1980         }
1981 }
1982
1983
1984
1985
1986 /* This function pokes and hacks at a parameter list like the following:
1987  *
1988  * PART #winbot,#darkgalaxy :m00!
1989  *
1990  * to turn it into a series of individual calls like this:
1991  *
1992  * PART #winbot :m00!
1993  * PART #darkgalaxy :m00!
1994  *
1995  * The seperate calls are sent to a callback function provided by the caller
1996  * (the caller will usually call itself recursively). The callback function
1997  * must be a command handler. Calling this function on a line with no list causes
1998  * no action to be taken. You must provide a starting and ending parameter number
1999  * where the range of the list can be found, useful if you have a terminating
2000  * parameter as above which is actually not part of the list, or parameters
2001  * before the actual list as well. This code is used by many functions which
2002  * can function as "one to list" (see the RFC) */
2003
2004 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
2005 {
2006         char plist[MAXBUF];
2007         char *param;
2008         char *pars[32];
2009         char blog[32][MAXBUF];
2010         char blog2[32][MAXBUF];
2011         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2012         char keystr[MAXBUF];
2013         char moo[MAXBUF];
2014
2015         for (int i = 0; i <32; i++)
2016                 strcpy(blog[i],"");
2017
2018         for (int i = 0; i <32; i++)
2019                 strcpy(blog2[i],"");
2020
2021         strcpy(moo,"");
2022         for (int i = 0; i <10; i++)
2023         {
2024                 if (!parameters[i])
2025                 {
2026                         parameters[i] = moo;
2027                 }
2028         }
2029         if (joins)
2030         {
2031                 if (pcnt > 1) /* we have a key to copy */
2032                 {
2033                         strlcpy(keystr,parameters[1],MAXBUF);
2034                 }
2035         }
2036
2037         if (!parameters[start])
2038         {
2039                 return 0;
2040         }
2041         if (!strchr(parameters[start],','))
2042         {
2043                 return 0;
2044         }
2045         strcpy(plist,"");
2046         for (int i = start; i <= end; i++)
2047         {
2048                 if (parameters[i])
2049                 {
2050                         strlcat(plist,parameters[i],MAXBUF);
2051                 }
2052         }
2053
2054         j = 0;
2055         param = plist;
2056
2057         t = strlen(plist);
2058         for (int i = 0; i < t; i++)
2059         {
2060                 if (plist[i] == ',')
2061                 {
2062                         plist[i] = '\0';
2063                         strlcpy(blog[j++],param,MAXBUF);
2064                         param = plist+i+1;
2065                         if (j>20)
2066                         {
2067                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2068                                 return 1;
2069                         }
2070                 }
2071         }
2072         strlcpy(blog[j++],param,MAXBUF);
2073         total = j;
2074
2075         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2076         {
2077                 strcat(keystr,",");
2078         }
2079
2080         if ((joins) && (keystr))
2081         {
2082                 if (strchr(keystr,','))
2083                 {
2084                         j = 0;
2085                         param = keystr;
2086                         t2 = strlen(keystr);
2087                         for (int i = 0; i < t2; i++)
2088                         {
2089                                 if (keystr[i] == ',')
2090                                 {
2091                                         keystr[i] = '\0';
2092                                         strlcpy(blog2[j++],param,MAXBUF);
2093                                         param = keystr+i+1;
2094                                 }
2095                         }
2096                         strlcpy(blog2[j++],param,MAXBUF);
2097                         total2 = j;
2098                 }
2099         }
2100
2101         for (j = 0; j < total; j++)
2102         {
2103                 if (blog[j])
2104                 {
2105                         pars[0] = blog[j];
2106                 }
2107                 for (q = end; q < pcnt-1; q++)
2108                 {
2109                         if (parameters[q+1])
2110                         {
2111                                 pars[q-end+1] = parameters[q+1];
2112                         }
2113                 }
2114                 if ((joins) && (parameters[1]))
2115                 {
2116                         if (pcnt > 1)
2117                         {
2118                                 pars[1] = blog2[j];
2119                         }
2120                         else
2121                         {
2122                                 pars[1] = NULL;
2123                         }
2124                 }
2125                 /* repeatedly call the function with the hacked parameter list */
2126                 if ((joins) && (pcnt > 1))
2127                 {
2128                         if (pars[1])
2129                         {
2130                                 // pars[1] already set up and containing key from blog2[j]
2131                                 fn(pars,2,u);
2132                         }
2133                         else
2134                         {
2135                                 pars[1] = parameters[1];
2136                                 fn(pars,2,u);
2137                         }
2138                 }
2139                 else
2140                 {
2141                         fn(pars,pcnt-(end-start),u);
2142                 }
2143         }
2144
2145         return 1;
2146 }
2147
2148
2149
2150 void kill_link(userrec *user,const char* r)
2151 {
2152         user_hash::iterator iter = clientlist.find(user->nick);
2153
2154         char reason[MAXBUF];
2155
2156         strncpy(reason,r,MAXBUF);
2157
2158         if (strlen(reason)>MAXQUIT)
2159         {
2160                 reason[MAXQUIT-1] = '\0';
2161         }
2162
2163         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2164         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2165         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2166
2167         /* bugfix, cant close() a nonblocking socket (sux!) */
2168         if (user->registered == 7) {
2169                 FOREACH_MOD OnUserQuit(user);
2170                 WriteCommonExcept(user,"QUIT :%s",reason);
2171
2172                 // Q token must go to ALL servers!!!
2173                 char buffer[MAXBUF];
2174                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2175                 NetSendToAll(buffer);
2176         }
2177
2178         FOREACH_MOD OnUserDisconnect(user);
2179
2180         if (user->fd > -1)
2181         {
2182                 shutdown(user->fd,2);
2183                 close(user->fd);
2184         }
2185
2186         if (user->registered == 7) {
2187                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2188                 AddWhoWas(user);
2189         }
2190
2191         if (user->registered == 7) {
2192                 purge_empty_chans(user);
2193         }
2194
2195         if (iter != clientlist.end())
2196         {
2197                 log(DEBUG,"deleting user hash value %lu",(unsigned long)iter->second);
2198                 if ((iter->second) && (user->registered == 7)) {
2199                         if (iter->second) delete iter->second;
2200                 }
2201                 clientlist.erase(iter);
2202         }
2203 }
2204
2205 void kill_link_silent(userrec *user,const char* r)
2206 {
2207         user_hash::iterator iter = clientlist.find(user->nick);
2208
2209         char reason[MAXBUF];
2210
2211         strncpy(reason,r,MAXBUF);
2212
2213         if (strlen(reason)>MAXQUIT)
2214         {
2215                 reason[MAXQUIT-1] = '\0';
2216         }
2217
2218         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2219         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2220         log(DEBUG,"closing fd %lu",(unsigned long)user->fd);
2221
2222         /* bugfix, cant close() a nonblocking socket (sux!) */
2223         if (user->registered == 7) {
2224                 FOREACH_MOD OnUserQuit(user);
2225                 WriteCommonExcept(user,"QUIT :%s",reason);
2226
2227                 // Q token must go to ALL servers!!!
2228                 char buffer[MAXBUF];
2229                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2230                 NetSendToAll(buffer);
2231         }
2232
2233         FOREACH_MOD OnUserDisconnect(user);
2234
2235         if (user->fd > -1)
2236         {
2237                 shutdown(user->fd,2);
2238                 close(user->fd);
2239         }
2240
2241         if (user->registered == 7) {
2242                 purge_empty_chans(user);
2243         }
2244
2245         if (iter != clientlist.end())
2246         {
2247                 log(DEBUG,"deleting user hash value %lu",(unsigned long)iter->second);
2248                 if ((iter->second) && (user->registered == 7)) {
2249                         if (iter->second) delete iter->second;
2250                 }
2251                 clientlist.erase(iter);
2252         }
2253 }
2254
2255
2256
2257 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2258
2259 char* Passwd(userrec *user)
2260 {
2261         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2262         {
2263                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2264                 {
2265                         return i->pass;
2266                 }
2267         }
2268         return "";
2269 }
2270
2271 bool IsDenied(userrec *user)
2272 {
2273         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2274         {
2275                 if (match(user->host,i->host) && (i->type == CC_DENY))
2276                 {
2277                         return true;
2278                 }
2279         }
2280         return false;
2281 }
2282
2283
2284
2285
2286 /* sends out an error notice to all connected clients (not to be used
2287  * lightly!) */
2288
2289 void send_error(char *s)
2290 {
2291         log(DEBUG,"send_error: %s",s);
2292         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2293         {
2294                 if (isnick(i->second->nick))
2295                 {
2296                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2297                 }
2298                 else
2299                 {
2300                         // fix - unregistered connections receive ERROR, not NOTICE
2301                         Write(i->second->fd,"ERROR :%s",s);
2302                 }
2303         }
2304 }
2305
2306 void Error(int status)
2307 {
2308         signal (SIGALRM, SIG_IGN);
2309         signal (SIGPIPE, SIG_IGN);
2310         signal (SIGTERM, SIG_IGN);
2311         signal (SIGABRT, SIG_IGN);
2312         signal (SIGSEGV, SIG_IGN);
2313         signal (SIGURG, SIG_IGN);
2314         signal (SIGKILL, SIG_IGN);
2315         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2316         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2317         Exit(status);
2318 }
2319
2320
2321 int main(int argc, char **argv)
2322 {
2323         Start();
2324         srand(time(NULL));
2325         log(DEBUG,"*** InspIRCd starting up!");
2326         if (!FileExists(CONFIG_FILE))
2327         {
2328                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2329                 log(DEFAULT,"main: no config");
2330                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2331                 Exit(ERROR);
2332         }
2333         if (argc > 1) {
2334                 for (int i = 1; i < argc; i++)
2335                 {
2336                         if (!strcmp(argv[i],"-nofork")) {
2337                                 nofork = true;
2338                         }
2339                         if (!strcmp(argv[i],"-wait")) {
2340                                 sleep(6);
2341                         }
2342                         if (!strcmp(argv[i],"-nolimit")) {
2343                                 unlimitcore = true;
2344                         }
2345                 }
2346         }
2347         strlcpy(MyExecutable,argv[0],MAXBUF);
2348
2349         if (InspIRCd() == ERROR)
2350         {
2351                 log(DEFAULT,"main: daemon function bailed");
2352                 printf("ERROR: could not initialise. Shutting down.\n");
2353                 Exit(ERROR);
2354         }
2355         Exit(TRUE);
2356         return 0;
2357 }
2358
2359 template<typename T> inline string ConvToStr(const T &in)
2360 {
2361         stringstream tmp;
2362         if (!(tmp << in)) return string();
2363         return tmp.str();
2364 }
2365
2366 /* re-allocates a nick in the user_hash after they change nicknames,
2367  * returns a pointer to the new user as it may have moved */
2368
2369 userrec* ReHashNick(char* Old, char* New)
2370 {
2371         //user_hash::iterator newnick;
2372         user_hash::iterator oldnick = clientlist.find(Old);
2373
2374         log(DEBUG,"ReHashNick: %s %s",Old,New);
2375
2376         if (!strcasecmp(Old,New))
2377         {
2378                 log(DEBUG,"old nick is new nick, skipping");
2379                 return oldnick->second;
2380         }
2381
2382         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2383
2384         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2385
2386         clientlist[New] = new userrec();
2387         clientlist[New] = oldnick->second;
2388         clientlist.erase(oldnick);
2389
2390         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2391
2392         return clientlist[New];
2393 }
2394
2395 /* adds or updates an entry in the whowas list */
2396 void AddWhoWas(userrec* u)
2397 {
2398         user_hash::iterator iter = whowas.find(u->nick);
2399         userrec *a = new userrec();
2400         strlcpy(a->nick,u->nick,NICKMAX);
2401         strlcpy(a->ident,u->ident,64);
2402         strlcpy(a->dhost,u->dhost,256);
2403         strlcpy(a->host,u->host,256);
2404         strlcpy(a->fullname,u->fullname,128);
2405         strlcpy(a->server,u->server,256);
2406         a->signon = u->signon;
2407
2408         /* MAX_WHOWAS:   max number of /WHOWAS items
2409          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2410          *               can be replaced by a newer one
2411          */
2412
2413         if (iter == whowas.end())
2414         {
2415                 if (whowas.size() == WHOWAS_MAX)
2416                 {
2417                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2418                         {
2419                                 // 3600 seconds in an hour ;)
2420                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2421                                 {
2422                                         if (i->second) delete i->second;
2423                                         i->second = a;
2424                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2425                                         return;
2426                                 }
2427                         }
2428                 }
2429                 else
2430                 {
2431                         log(DEBUG,"added fresh WHOWAS entry");
2432                         whowas[a->nick] = a;
2433                 }
2434         }
2435         else
2436         {
2437                 log(DEBUG,"updated WHOWAS entry");
2438                 if (iter->second) delete iter->second;
2439                 iter->second = a;
2440         }
2441 }
2442
2443
2444 /* add a client connection to the sockets list */
2445 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2446 {
2447         string tempnick;
2448         char tn2[MAXBUF];
2449         user_hash::iterator iter;
2450
2451         tempnick = ConvToStr(socket) + "-unknown";
2452         sprintf(tn2,"%lu-unknown",(unsigned long)socket);
2453
2454         iter = clientlist.find(tempnick);
2455
2456         if (iter != clientlist.end()) return;
2457
2458         /*
2459          * It is OK to access the value here this way since we know
2460          * it exists, we just created it above.
2461          *
2462          * At NO other time should you access a value in a map or a
2463          * hash_map this way.
2464          */
2465         clientlist[tempnick] = new userrec();
2466
2467         NonBlocking(socket);
2468         log(DEBUG,"AddClient: %lu %s %d %s",(unsigned long)socket,host,port,ip);
2469
2470         clientlist[tempnick]->fd = socket;
2471         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2472         strncpy(clientlist[tempnick]->host, host,160);
2473         strncpy(clientlist[tempnick]->dhost, host,160);
2474         strncpy(clientlist[tempnick]->server, ServerName,256);
2475         strncpy(clientlist[tempnick]->ident, "unknown",12);
2476         clientlist[tempnick]->registered = 0;
2477         clientlist[tempnick]->signon = TIME+dns_timeout;
2478         clientlist[tempnick]->lastping = 1;
2479         clientlist[tempnick]->port = port;
2480         strncpy(clientlist[tempnick]->ip,ip,32);
2481
2482         // set the registration timeout for this user
2483         unsigned long class_regtimeout = 90;
2484         int class_flood = 0;
2485         long class_threshold = 5;
2486
2487         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2488         {
2489                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2490                 {
2491                         class_regtimeout = (unsigned long)i->registration_timeout;
2492                         class_flood = i->flood;
2493                         clientlist[tempnick]->pingmax = i->pingtime;
2494                         class_threshold = i->threshold;
2495                         break;
2496                 }
2497         }
2498
2499         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2500         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2501         clientlist[tempnick]->flood = class_flood;
2502         clientlist[tempnick]->threshold = class_threshold;
2503
2504         for (int i = 0; i < MAXCHANS; i++)
2505         {
2506                 clientlist[tempnick]->chans[i].channel = NULL;
2507                 clientlist[tempnick]->chans[i].uc_modes = 0;
2508         }
2509
2510         if (clientlist.size() == MAXCLIENTS)
2511                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2512
2513
2514         char* e = matches_exception(ip);
2515         if (!e)
2516         {
2517                 char* r = matches_zline(ip);
2518                 if (r)
2519                 {
2520                         char reason[MAXBUF];
2521                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2522                         kill_link(clientlist[tempnick],reason);
2523                 }
2524         }
2525 }
2526
2527 // this function counts all users connected, wether they are registered or NOT.
2528 int usercnt(void)
2529 {
2530         return clientlist.size();
2531 }
2532
2533 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2534 int registered_usercount(void)
2535 {
2536         int c = 0;
2537         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2538         {
2539                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2540         }
2541         return c;
2542 }
2543
2544 int usercount_invisible(void)
2545 {
2546         int c = 0;
2547
2548         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2549         {
2550                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2551         }
2552         return c;
2553 }
2554
2555 int usercount_opers(void)
2556 {
2557         int c = 0;
2558
2559         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2560         {
2561                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2562         }
2563         return c;
2564 }
2565
2566 int usercount_unknown(void)
2567 {
2568         int c = 0;
2569
2570         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2571         {
2572                 if ((i->second->fd) && (i->second->registered != 7))
2573                         c++;
2574         }
2575         return c;
2576 }
2577
2578 long chancount(void)
2579 {
2580         return chanlist.size();
2581 }
2582
2583 long count_servs(void)
2584 {
2585         int c = 0;
2586         for (int i = 0; i < 32; i++)
2587         {
2588                 if (me[i] != NULL)
2589                 {
2590                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2591                         {
2592                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2593                                 {
2594                                         c++;
2595                                 }
2596                         }
2597                 }
2598         }
2599         return c;
2600 }
2601
2602 long servercount(void)
2603 {
2604         return count_servs()+1;
2605 }
2606
2607 long local_count()
2608 {
2609         int c = 0;
2610         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2611         {
2612                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2613         }
2614         return c;
2615 }
2616
2617
2618 void ShowMOTD(userrec *user)
2619 {
2620         std::string WholeMOTD = "";
2621         if (!MOTD.size())
2622         {
2623                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2624                 return;
2625         }
2626         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2627         for (int i = 0; i != MOTD.size(); i++)
2628         {
2629                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2630         }
2631         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2632         // only one write operation
2633         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2634
2635 }
2636
2637 void ShowRULES(userrec *user)
2638 {
2639         if (!RULES.size())
2640         {
2641                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2642                 return;
2643         }
2644         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2645         for (int i = 0; i != RULES.size(); i++)
2646         {
2647                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2648         }
2649         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2650 }
2651
2652 /* shows the message of the day, and any other on-logon stuff */
2653 void FullConnectUser(userrec* user)
2654 {
2655         user->registered = 7;
2656         user->idle_lastmsg = TIME;
2657         log(DEBUG,"ConnectUser: %s",user->nick);
2658
2659         if ((strcmp(Passwd(user),"")) && (!user->haspassed))
2660         {
2661                 kill_link(user,"Invalid password");
2662                 return;
2663         }
2664         if (IsDenied(user))
2665         {
2666                 kill_link(user,"Unauthorised connection");
2667                 return;
2668         }
2669
2670         char match_against[MAXBUF];
2671         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2672         char* e = matches_exception(match_against);
2673         if (!e)
2674         {
2675                 char* r = matches_gline(match_against);
2676                 if (r)
2677                 {
2678                         char reason[MAXBUF];
2679                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2680                         kill_link_silent(user,reason);
2681                         return;
2682                 }
2683                 r = matches_kline(user->host);
2684                 if (r)
2685                 {
2686                         char reason[MAXBUF];
2687                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2688                         kill_link_silent(user,reason);
2689                         return;
2690                 }
2691         }
2692
2693         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2694         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2695         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2696         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2697         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2698         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2699         std::stringstream v;
2700         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2701         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2702         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2703         v << std::string(Network);
2704         std::string data005 = v.str();
2705         FOREACH_MOD On005Numeric(data005);
2706         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2707         // so i'd better split it :)
2708         std::stringstream out(data005);
2709         std::string token = "";
2710         std::string line5 = "";
2711         int token_counter = 0;
2712         while (!out.eof())
2713         {
2714                 out >> token;
2715                 line5 = line5 + token + " ";
2716                 token_counter++;
2717                 if ((token_counter >= 13) || (out.eof() == true))
2718                 {
2719                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2720                         line5 = "";
2721                         token_counter = 0;
2722                 }
2723         }
2724         ShowMOTD(user);
2725         FOREACH_MOD OnUserConnect(user);
2726         WriteOpers("*** Client connecting on port %lu: %s!%s@%s [%s]",(unsigned long)user->port,user->nick,user->ident,user->host,user->ip);
2727
2728         char buffer[MAXBUF];
2729         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);
2730         NetSendToAll(buffer);
2731 }
2732
2733
2734 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2735 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2736 // registration timeout maximum seconds)
2737 bool AllModulesReportReady(userrec* user)
2738 {
2739         for (int i = 0; i <= MODCOUNT; i++)
2740         {
2741                 int res = modules[i]->OnCheckReady(user);
2742                         if (!res)
2743                                 return false;
2744         }
2745         return true;
2746 }
2747
2748 /* shows the message of the day, and any other on-logon stuff */
2749 void ConnectUser(userrec *user)
2750 {
2751         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2752         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2753         {
2754                 FullConnectUser(user);
2755         }
2756 }
2757
2758 std::string GetVersionString()
2759 {
2760         char Revision[] = "$Revision$";
2761         char versiondata[MAXBUF];
2762         char *s1 = Revision;
2763         char *savept;
2764         char *v2 = strtok_r(s1," ",&savept);
2765         s1 = savept;
2766         v2 = strtok_r(s1," ",&savept);
2767         s1 = savept;
2768         snprintf(versiondata,MAXBUF,"%s Rev. %s %s :%s (O=%lu)",VERSION,v2,ServerName,SYSTEM,(unsigned long)OPTIMISATION);
2769         return versiondata;
2770 }
2771
2772 void handle_version(char **parameters, int pcnt, userrec *user)
2773 {
2774         if (!pcnt)
2775         {
2776                 WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2777         }
2778         else
2779         {
2780                 if (match(ServerName,parameters[0]))
2781                 {
2782                         WriteServ(user->fd,"351 %s :%s",user->nick,GetVersionString().c_str());
2783                         return;
2784                 }
2785                 bool displayed = false, found = false;
2786                 for (int j = 0; j < 32; j++)
2787                 {
2788                         if (me[j] != NULL)
2789                         {
2790                                 for (int x = 0; x < me[j]->connectors.size(); x++)
2791                                 {
2792                                         if (match(me[j]->connectors[x].GetServerName().c_str(),parameters[0]))
2793                                         {
2794                                                 found = true;
2795                                                 if ((me[j]->connectors[x].GetVersionString() != "") && (!displayed))
2796                                                 {
2797                                                         displayed = true;
2798                                                         WriteServ(user->fd,"351 %s :%s",user->nick,me[j]->connectors[x].GetVersionString().c_str());
2799                                                 }
2800                                         }
2801                                 }
2802                         }
2803                 }
2804                 if ((!displayed) && (found))
2805                 {
2806                         WriteServ(user->fd,"402 %s %s :Server %s has no version information",user->nick,parameters[0],parameters[0]);
2807                         return;
2808                 }
2809                 WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
2810         }
2811         return;
2812 }
2813
2814
2815 // calls a handler function for a command
2816
2817 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2818 {
2819                 for (int i = 0; i < cmdlist.size(); i++)
2820                 {
2821                         if (!strcasecmp(cmdlist[i].command,commandname))
2822                         {
2823                                 if (cmdlist[i].handler_function)
2824                                 {
2825                                         if (pcnt>=cmdlist[i].min_params)
2826                                         {
2827                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2828                                                 {
2829                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2830                                                 }
2831                                         }
2832                                 }
2833                         }
2834                 }
2835 }
2836
2837 void DoSplitEveryone()
2838 {
2839         bool go_again = true;
2840         while (go_again)
2841         {
2842                 go_again = false;
2843                 for (int i = 0; i < 32; i++)
2844                 {
2845                         if (me[i] != NULL)
2846                         {
2847                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2848                                 {
2849                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2850                                         {
2851                                                 j->routes.clear();
2852                                                 j->CloseConnection();
2853                                                 me[i]->connectors.erase(j);
2854                                                 go_again = true;
2855                                                 break;
2856                                         }
2857                                 }
2858                         }
2859                 }
2860         }
2861         log(DEBUG,"Removed server. Will remove clients...");
2862         // iterate through the userlist and remove all users on this server.
2863         // because we're dealing with a mesh, we dont have to deal with anything
2864         // "down-route" from this server (nice huh)
2865         go_again = true;
2866         char reason[MAXBUF];
2867         while (go_again)
2868         {
2869                 go_again = false;
2870                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2871                 {
2872                         if (strcasecmp(u->second->server,ServerName))
2873                         {
2874                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2875                                 kill_link(u->second,reason);
2876                                 go_again = true;
2877                                 break;
2878                         }
2879                 }
2880         }
2881 }
2882
2883
2884
2885 char islast(const char* s)
2886 {
2887         char c = '`';
2888         for (int j = 0; j < 32; j++)
2889         {
2890                 if (me[j] != NULL)
2891                 {
2892                         for (int k = 0; k < me[j]->connectors.size(); k++)
2893                         {
2894                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2895                                 {
2896                                         c = '|';
2897                                 }
2898                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2899                                 {
2900                                         c = '`';
2901                                 }
2902                         }
2903                 }
2904         }
2905         return c;
2906 }
2907
2908 long map_count(const char* s)
2909 {
2910         int c = 0;
2911         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2912         {
2913                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2914         }
2915         return c;
2916 }
2917
2918
2919 void force_nickchange(userrec* user,const char* newnick)
2920 {
2921         char nick[MAXBUF];
2922         int MOD_RESULT = 0;
2923
2924         strcpy(nick,"");
2925
2926         FOREACH_RESULT(OnUserPreNick(user,newnick));
2927         if (MOD_RESULT) {
2928                 kill_link(user,"Nickname collision");
2929                 return;
2930         }
2931         if (matches_qline(newnick))
2932         {
2933                 kill_link(user,"Nickname collision");
2934                 return;
2935         }
2936
2937         if (user)
2938         {
2939                 if (newnick)
2940                 {
2941                         strncpy(nick,newnick,MAXBUF);
2942                 }
2943                 if (user->registered == 7)
2944                 {
2945                         char* pars[1];
2946                         pars[0] = nick;
2947                         handle_nick(pars,1,user);
2948                 }
2949         }
2950 }
2951
2952
2953 int process_parameters(char **command_p,char *parameters)
2954 {
2955         int j = 0;
2956         int q = strlen(parameters);
2957         if (!q)
2958         {
2959                 /* no parameters, command_p invalid! */
2960                 return 0;
2961         }
2962         if (parameters[0] == ':')
2963         {
2964                 command_p[0] = parameters+1;
2965                 return 1;
2966         }
2967         if (q)
2968         {
2969                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2970                 {
2971                         /* only one parameter */
2972                         command_p[0] = parameters;
2973                         if (parameters[0] == ':')
2974                         {
2975                                 if (strchr(parameters,' ') != NULL)
2976                                 {
2977                                         command_p[0]++;
2978                                 }
2979                         }
2980                         return 1;
2981                 }
2982         }
2983         command_p[j++] = parameters;
2984         for (int i = 0; i <= q; i++)
2985         {
2986                 if (parameters[i] == ' ')
2987                 {
2988                         command_p[j++] = parameters+i+1;
2989                         parameters[i] = '\0';
2990                         if (command_p[j-1][0] == ':')
2991                         {
2992                                 *command_p[j-1]++; /* remove dodgy ":" */
2993                                 break;
2994                                 /* parameter like this marks end of the sequence */
2995                         }
2996                 }
2997         }
2998         return j; /* returns total number of items in the list */
2999 }
3000
3001 void process_command(userrec *user, char* cmd)
3002 {
3003         char *parameters;
3004         char *command;
3005         char *command_p[127];
3006         char p[MAXBUF], temp[MAXBUF];
3007         int j, items, cmd_found;
3008
3009         for (int i = 0; i < 127; i++)
3010                 command_p[i] = NULL;
3011
3012         if (!user)
3013         {
3014                 return;
3015         }
3016         if (!cmd)
3017         {
3018                 return;
3019         }
3020         if (!cmd[0])
3021         {
3022                 return;
3023         }
3024
3025         int total_params = 0;
3026         if (strlen(cmd)>2)
3027         {
3028                 for (int q = 0; q < strlen(cmd)-1; q++)
3029                 {
3030                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
3031                         {
3032                                 total_params++;
3033                                 // found a 'trailing', we dont count them after this.
3034                                 break;
3035                         }
3036                         if (cmd[q] == ' ')
3037                                 total_params++;
3038                 }
3039         }
3040
3041         // another phidjit bug...
3042         if (total_params > 126)
3043         {
3044                 *(strchr(cmd,' ')) = '\0';
3045                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
3046                 return;
3047         }
3048
3049         strlcpy(temp,cmd,MAXBUF);
3050
3051         std::string tmp = cmd;
3052         for (int i = 0; i <= MODCOUNT; i++)
3053         {
3054                 std::string oldtmp = tmp;
3055                 modules[i]->OnServerRaw(tmp,true,user);
3056                 if (oldtmp != tmp)
3057                 {
3058                         log(DEBUG,"A Module changed the input string!");
3059                         log(DEBUG,"New string: %s",tmp.c_str());
3060                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3061                         break;
3062                 }
3063         }
3064         strlcpy(cmd,tmp.c_str(),MAXBUF);
3065         strlcpy(temp,cmd,MAXBUF);
3066
3067         if (!strchr(cmd,' '))
3068         {
3069                 /* no parameters, lets skip the formalities and not chop up
3070                  * the string */
3071                 log(DEBUG,"About to preprocess command with no params");
3072                 items = 0;
3073                 command_p[0] = NULL;
3074                 parameters = NULL;
3075                 for (int i = 0; i <= strlen(cmd); i++)
3076                 {
3077                         cmd[i] = toupper(cmd[i]);
3078                 }
3079                 command = cmd;
3080         }
3081         else
3082         {
3083                 strcpy(cmd,"");
3084                 j = 0;
3085                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3086                 for (int i = 0; i < strlen(temp); i++)
3087                 {
3088                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3089                         {
3090                                 cmd[j++] = temp[i];
3091                                 cmd[j] = 0;
3092                         }
3093                 }
3094                 /* split the full string into a command plus parameters */
3095                 parameters = p;
3096                 strcpy(p," ");
3097                 command = cmd;
3098                 if (strchr(cmd,' '))
3099                 {
3100                         for (int i = 0; i <= strlen(cmd); i++)
3101                         {
3102                                 /* capitalise the command ONLY, leave params intact */
3103                                 cmd[i] = toupper(cmd[i]);
3104                                 /* are we nearly there yet?! :P */
3105                                 if (cmd[i] == ' ')
3106                                 {
3107                                         command = cmd;
3108                                         parameters = cmd+i+1;
3109                                         cmd[i] = '\0';
3110                                         break;
3111                                 }
3112                         }
3113                 }
3114                 else
3115                 {
3116                         for (int i = 0; i <= strlen(cmd); i++)
3117                         {
3118                                 cmd[i] = toupper(cmd[i]);
3119                         }
3120                 }
3121
3122         }
3123         cmd_found = 0;
3124
3125         if (strlen(command)>MAXCOMMAND)
3126         {
3127                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3128                 return;
3129         }
3130
3131         for (int x = 0; x < strlen(command); x++)
3132         {
3133                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3134                 {
3135                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3136                         {
3137                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3138                                 {
3139                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3140                                         return;
3141                                 }
3142                         }
3143                 }
3144         }
3145
3146         for (int i = 0; i != cmdlist.size(); i++)
3147         {
3148                 if (cmdlist[i].command[0])
3149                 {
3150                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3151                         {
3152                                 if (parameters)
3153                                 {
3154                                         if (parameters[0])
3155                                         {
3156                                                 items = process_parameters(command_p,parameters);
3157                                         }
3158                                         else
3159                                         {
3160                                                 items = 0;
3161                                                 command_p[0] = NULL;
3162                                         }
3163                                 }
3164                                 else
3165                                 {
3166                                         items = 0;
3167                                         command_p[0] = NULL;
3168                                 }
3169
3170                                 if (user)
3171                                 {
3172                                         /* activity resets the ping pending timer */
3173                                         user->nping = TIME + user->pingmax;
3174                                         if ((items) < cmdlist[i].min_params)
3175                                         {
3176                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3177                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3178                                                 return;
3179                                         }
3180                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3181                                         {
3182                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3183                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3184                                                 cmd_found = 1;
3185                                                 return;
3186                                         }
3187                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3188                                         {
3189                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3190                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3191                                                 cmd_found = 1;
3192                                                 return;
3193                                         }
3194                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3195                                          * deny command! */
3196                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3197                                         {
3198                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3199                                                 {
3200                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3201                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3202                                                         return;
3203                                                 }
3204                                         }
3205                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3206                                         {
3207                                                 char* mycmd;
3208                                                 char* savept2;
3209                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3210                                                 while (mycmd)
3211                                                 {
3212                                                         if (!strcasecmp(mycmd,command))
3213                                                         {
3214                                                                 // command is disabled!
3215                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3216                                                                 return;
3217                                                         }
3218                                                         mycmd = strtok_r(NULL," ",&savept2);
3219                                                 }
3220
3221
3222                                         }
3223                                         if ((user->registered == 7) || (!strncmp(command,"USER",4)) || (!strncmp(command,"NICK",4)) || (!strncmp(command,"PASS",4)))
3224                                         {
3225                                                 if (cmdlist[i].handler_function)
3226                                                 {
3227
3228                                                         /* ikky /stats counters */
3229                                                         if (temp)
3230                                                         {
3231                                                                 if (user)
3232                                                                 {
3233                                                                         user->bytes_in += strlen(temp);
3234                                                                         user->cmds_in++;
3235                                                                         user->bytes_out+=strlen(temp);
3236                                                                         user->cmds_out++;
3237                                                                 }
3238                                                                 cmdlist[i].use_count++;
3239                                                                 cmdlist[i].total_bytes+=strlen(temp);
3240                                                         }
3241
3242                                                         int MOD_RESULT = 0;
3243                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3244                                                         if (MOD_RESULT == 1) {
3245                                                                 return;
3246                                                         }
3247
3248                                                         /* WARNING: nothing may come after the
3249                                                          * command handler call, as the handler
3250                                                          * may free the user structure! */
3251
3252                                                         cmdlist[i].handler_function(command_p,items,user);
3253                                                 }
3254                                                 return;
3255                                         }
3256                                         else
3257                                         {
3258                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3259                                                 return;
3260                                         }
3261                                 }
3262                                 cmd_found = 1;
3263                         }
3264                 }
3265         }
3266         if ((!cmd_found) && (user))
3267         {
3268                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3269         }
3270 }
3271
3272
3273 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3274 {
3275         command_t comm;
3276         /* create the command and push it onto the table */
3277         strlcpy(comm.command,cmd,MAXBUF);
3278         strlcpy(comm.source,source,MAXBUF);
3279         comm.handler_function = f;
3280         comm.flags_needed = flags;
3281         comm.min_params = minparams;
3282         comm.use_count = 0;
3283         comm.total_bytes = 0;
3284         cmdlist.push_back(comm);
3285         log(DEBUG,"Added command %s (%lu parameters)",cmd,(unsigned long)minparams);
3286 }
3287
3288 bool removecommands(const char* source)
3289 {
3290         bool go_again = true;
3291         while (go_again)
3292         {
3293                 go_again = false;
3294                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3295                 {
3296                         if (!strcmp(i->source,source))
3297                         {
3298                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3299                                 cmdlist.erase(i);
3300                                 go_again = true;
3301                                 break;
3302                         }
3303                 }
3304         }
3305         return true;
3306 }
3307
3308 void SetupCommandTable(void)
3309 {
3310         createcommand("USER",handle_user,0,4,"<core>");
3311         createcommand("NICK",handle_nick,0,1,"<core>");
3312         createcommand("QUIT",handle_quit,0,0,"<core>");
3313         createcommand("VERSION",handle_version,0,0,"<core>");
3314         createcommand("PING",handle_ping,0,1,"<core>");
3315         createcommand("PONG",handle_pong,0,1,"<core>");
3316         createcommand("ADMIN",handle_admin,0,0,"<core>");
3317         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3318         createcommand("INFO",handle_info,0,0,"<core>");
3319         createcommand("TIME",handle_time,0,0,"<core>");
3320         createcommand("WHOIS",handle_whois,0,1,"<core>");
3321         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3322         createcommand("NOTICE",handle_notice,0,2,"<core>");
3323         createcommand("JOIN",handle_join,0,1,"<core>");
3324         createcommand("NAMES",handle_names,0,0,"<core>");
3325         createcommand("PART",handle_part,0,1,"<core>");
3326         createcommand("KICK",handle_kick,0,2,"<core>");
3327         createcommand("MODE",handle_mode,0,1,"<core>");
3328         createcommand("TOPIC",handle_topic,0,1,"<core>");
3329         createcommand("WHO",handle_who,0,1,"<core>");
3330         createcommand("MOTD",handle_motd,0,0,"<core>");
3331         createcommand("RULES",handle_rules,0,0,"<core>");
3332         createcommand("OPER",handle_oper,0,2,"<core>");
3333         createcommand("LIST",handle_list,0,0,"<core>");
3334         createcommand("DIE",handle_die,'o',1,"<core>");
3335         createcommand("RESTART",handle_restart,'o',1,"<core>");
3336         createcommand("KILL",handle_kill,'o',2,"<core>");
3337         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3338         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3339         createcommand("STATS",handle_stats,0,1,"<core>");
3340         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3341         createcommand("AWAY",handle_away,0,0,"<core>");
3342         createcommand("ISON",handle_ison,0,0,"<core>");
3343         createcommand("SUMMON",handle_summon,0,0,"<core>");
3344         createcommand("USERS",handle_users,0,0,"<core>");
3345         createcommand("INVITE",handle_invite,0,2,"<core>");
3346         createcommand("PASS",handle_pass,0,1,"<core>");
3347         createcommand("TRACE",handle_trace,'o',0,"<core>");
3348         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3349         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3350         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3351         createcommand("MODULES",handle_modules,0,0,"<core>");
3352         createcommand("LINKS",handle_links,0,0,"<core>");
3353         createcommand("MAP",handle_map,0,0,"<core>");
3354         createcommand("KLINE",handle_kline,'o',1,"<core>");
3355         createcommand("GLINE",handle_gline,'o',1,"<core>");
3356         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3357         createcommand("QLINE",handle_qline,'o',1,"<core>");
3358         createcommand("ELINE",handle_eline,'o',1,"<core>");
3359         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3360         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3361         createcommand("SERVER",handle_server,0,0,"<core>");
3362 }
3363
3364 void process_buffer(const char* cmdbuf,userrec *user)
3365 {
3366         if (!user)
3367         {
3368                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3369                 return;
3370         }
3371         char cmd[MAXBUF];
3372         if (!cmdbuf)
3373         {
3374                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3375                 return;
3376         }
3377         if (!cmdbuf[0])
3378         {
3379                 return;
3380         }
3381         while (*cmdbuf == ' ') cmdbuf++; // strip leading spaces
3382
3383         strlcpy(cmd,cmdbuf,MAXBUF);
3384         if (!cmd[0])
3385         {
3386                 return;
3387         }
3388         int sl = strlen(cmd)-1;
3389         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3390         {
3391                 cmd[sl] = '\0';
3392         }
3393         sl = strlen(cmd)-1;
3394         if ((cmd[sl] == 13) || (cmd[sl] == 10))
3395         {
3396                 cmd[sl] = '\0';
3397         }
3398         sl = strlen(cmd)-1;
3399         while (cmd[sl] == ' ') // strip trailing spaces
3400         {
3401                 cmd[sl] = '\0';
3402                 sl = strlen(cmd)-1;
3403         }
3404
3405         if (!cmd[0])
3406         {
3407                 return;
3408         }
3409         log(DEBUG,"CMDIN: %s %s",user->nick,cmd);
3410         tidystring(cmd);
3411         if ((user) && (cmd))
3412         {
3413                 process_command(user,cmd);
3414         }
3415 }
3416
3417 void DoSync(serverrec* serv, char* tcp_host)
3418 {
3419         char data[MAXBUF];
3420         log(DEBUG,"Sending sync");
3421         // send start of sync marker: Y <timestamp>
3422         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3423         // except the ones its receiving it from.
3424         snprintf(data,MAXBUF,"Y %lu",(unsigned long)TIME);
3425         serv->SendPacket(data,tcp_host);
3426         // send users and channels
3427
3428         NetSendMyRoutingTable();
3429
3430         // send all routing table and uline voodoo. The ordering of these commands is IMPORTANT!
3431         for (int j = 0; j < 32; j++)
3432         {
3433                 if (me[j] != NULL)
3434                 {
3435                         for (int k = 0; k < me[j]->connectors.size(); k++)
3436                         {
3437                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3438                                 {
3439                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3440                                         serv->SendPacket(data,tcp_host);
3441                                 }
3442                         }
3443                 }
3444         }
3445
3446         // send our version for the remote side to cache
3447         snprintf(data,MAXBUF,"v %s %s",ServerName,GetVersionString().c_str());
3448         serv->SendPacket(data,tcp_host);
3449
3450         // sync the users and channels, give the modules a look-in.
3451         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3452         {
3453                 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);
3454                 serv->SendPacket(data,tcp_host);
3455                 if (strchr(u->second->modes,'o'))
3456                 {
3457                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3458                         serv->SendPacket(data,tcp_host);
3459                 }
3460                 for (int i = 0; i <= MODCOUNT; i++)
3461                 {
3462                         string_list l = modules[i]->OnUserSync(u->second);
3463                         for (int j = 0; j < l.size(); j++)
3464                         {
3465                                 strlcpy(data,l[j].c_str(),MAXBUF);
3466                                 serv->SendPacket(data,tcp_host);
3467                         }
3468                 }
3469                 char* chl = chlist(u->second);
3470                 if (strcmp(chl,""))
3471                 {
3472                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chl);
3473                         serv->SendPacket(data,tcp_host);
3474                 }
3475         }
3476         // send channel modes, topics etc...
3477         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3478         {
3479                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3480                 serv->SendPacket(data,tcp_host);
3481                 for (int i = 0; i <= MODCOUNT; i++)
3482                 {
3483                         string_list l = modules[i]->OnChannelSync(c->second);
3484                         for (int j = 0; j < l.size(); j++)
3485                         {
3486                                 strlcpy(data,l[j].c_str(),MAXBUF);
3487                                 serv->SendPacket(data,tcp_host);
3488                         }
3489                 }
3490                 if (c->second->topic[0])
3491                 {
3492                         snprintf(data,MAXBUF,"T %lu %s %s :%s",(unsigned long)c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3493                         serv->SendPacket(data,tcp_host);
3494                 }
3495                 // send current banlist
3496
3497                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3498                 {
3499                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3500                         serv->SendPacket(data,tcp_host);
3501                 }
3502         }
3503         // sync global zlines, glines, etc
3504         sync_xlines(serv,tcp_host);
3505
3506         snprintf(data,MAXBUF,"F %lu",(unsigned long)TIME);
3507         serv->SendPacket(data,tcp_host);
3508         log(DEBUG,"Sent sync");
3509         // ircd sends its serverlist after the end of sync here
3510 }
3511
3512
3513 void NetSendMyRoutingTable()
3514 {
3515         // send out a line saying what is reachable to us.
3516         // E.g. if A is linked to B C and D, send out:
3517         // $ A B C D
3518         // if its only linked to B and D send out:
3519         // $ A B D
3520         // if it has no links, dont even send out the line at all.
3521         char buffer[MAXBUF];
3522         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3523         bool sendit = false;
3524         for (int i = 0; i < 32; i++)
3525         {
3526                 if (me[i] != NULL)
3527                 {
3528                         for (int j = 0; j < me[i]->connectors.size(); j++)
3529                         {
3530                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3531                                 {
3532                                         strlcat(buffer," ",MAXBUF);
3533                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3534                                         sendit = true;
3535                                 }
3536                         }
3537                 }
3538         }
3539         if (sendit)
3540                 NetSendToAll(buffer);
3541 }
3542
3543
3544 void DoSplit(const char* params)
3545 {
3546         bool go_again = true;
3547         while (go_again)
3548         {
3549                 go_again = false;
3550                 for (int i = 0; i < 32; i++)
3551                 {
3552                         if (me[i] != NULL)
3553                         {
3554                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3555                                 {
3556                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3557                                         {
3558                                                 j->routes.clear();
3559                                                 j->CloseConnection();
3560                                                 me[i]->connectors.erase(j);
3561                                                 go_again = true;
3562                                                 break;
3563                                         }
3564                                 }
3565                         }
3566                 }
3567         }
3568         log(DEBUG,"Removed server. Will remove clients...");
3569         // iterate through the userlist and remove all users on this server.
3570         // because we're dealing with a mesh, we dont have to deal with anything
3571         // "down-route" from this server (nice huh)
3572         go_again = true;
3573         char reason[MAXBUF];
3574         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3575         while (go_again)
3576         {
3577                 go_again = false;
3578                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3579                 {
3580                         if (!strcasecmp(u->second->server,params))
3581                         {
3582                                 kill_link(u->second,reason);
3583                                 go_again = true;
3584                                 break;
3585                         }
3586                 }
3587         }
3588 }
3589
3590 // removes a server. Will NOT remove its users!
3591
3592 void RemoveServer(const char* name)
3593 {
3594         bool go_again = true;
3595         while (go_again)
3596         {
3597                 go_again = false;
3598                 for (int i = 0; i < 32; i++)
3599                 {
3600                         if (me[i] != NULL)
3601                         {
3602                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3603                                 {
3604                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3605                                         {
3606                                                 j->routes.clear();
3607                                                 j->CloseConnection();
3608                                                 me[i]->connectors.erase(j);
3609                                                 go_again = true;
3610                                                 break;
3611                                         }
3612                                 }
3613                         }
3614                 }
3615         }
3616 }
3617
3618
3619 char MODERR[MAXBUF];
3620
3621 char* ModuleError()
3622 {
3623         return MODERR;
3624 }
3625
3626 void erase_factory(int j)
3627 {
3628         int v = 0;
3629         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3630         {
3631                 if (v == j)
3632                 {
3633                         factory.erase(t);
3634                         factory.push_back(NULL);
3635                         return;
3636                 }
3637                 v++;
3638         }
3639 }
3640
3641 void erase_module(int j)
3642 {
3643         int v1 = 0;
3644         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3645         {
3646                 if (v1 == j)
3647                 {
3648                         delete *m;
3649                         modules.erase(m);
3650                         modules.push_back(NULL);
3651                         break;
3652                 }
3653                 v1++;
3654         }
3655         int v2 = 0;
3656         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3657         {
3658                 if (v2 == j)
3659                 {
3660                        module_names.erase(v);
3661                        break;
3662                 }
3663                 v2++;
3664         }
3665
3666 }
3667
3668 bool UnloadModule(const char* filename)
3669 {
3670         for (int j = 0; j != module_names.size(); j++)
3671         {
3672                 if (module_names[j] == std::string(filename))
3673                 {
3674                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3675                         {
3676                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3677                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3678                                 return false;
3679                         }
3680                         // found the module
3681                         log(DEBUG,"Deleting module...");
3682                         erase_module(j);
3683                         log(DEBUG,"Erasing module entry...");
3684                         erase_factory(j);
3685                         log(DEBUG,"Removing dependent commands...");
3686                         removecommands(filename);
3687                         log(DEFAULT,"Module %s unloaded",filename);
3688                         MODCOUNT--;
3689                         return true;
3690                 }
3691         }
3692         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3693         snprintf(MODERR,MAXBUF,"Module not loaded");
3694         return false;
3695 }
3696
3697 bool DirValid(char* dirandfile)
3698 {
3699         char work[MAXBUF];
3700         strlcpy(work,dirandfile,MAXBUF);
3701         int p = strlen(work);
3702         // we just want the dir
3703         while (strlen(work))
3704         {
3705                 if (work[p] == '/')
3706                 {
3707                         work[p] = '\0';
3708                         break;
3709                 }
3710                 work[p--] = '\0';
3711         }
3712         char buffer[MAXBUF], otherdir[MAXBUF];
3713         // Get the current working directory
3714         if( getcwd( buffer, MAXBUF ) == NULL )
3715                 return false;
3716         chdir(work);
3717         if( getcwd( otherdir, MAXBUF ) == NULL )
3718                 return false;
3719         chdir(buffer);
3720         if (strlen(otherdir) >= strlen(work))
3721         {
3722                 otherdir[strlen(work)] = '\0';
3723                 if (!strcmp(otherdir,work))
3724                 {
3725                         return true;
3726                 }
3727                 return false;
3728         }
3729         else return false;
3730 }
3731
3732 bool LoadModule(const char* filename)
3733 {
3734         char modfile[MAXBUF];
3735         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3736         if (!DirValid(modfile))
3737         {
3738                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3739                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3740                 return false;
3741         }
3742         log(DEBUG,"Loading module: %s",modfile);
3743         if (FileExists(modfile))
3744         {
3745                 for (int j = 0; j < module_names.size(); j++)
3746                 {
3747                         if (module_names[j] == std::string(filename))
3748                         {
3749                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3750                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3751                                 return false;
3752                         }
3753                 }
3754                 ircd_module* a = new ircd_module(modfile);
3755                 factory[MODCOUNT+1] = a;
3756                 if (factory[MODCOUNT+1]->LastError())
3757                 {
3758                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3759                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3760                         MODCOUNT--;
3761                         return false;
3762                 }
3763                 if (factory[MODCOUNT+1]->factory)
3764                 {
3765                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3766                         modules[MODCOUNT+1] = m;
3767                         /* save the module and the module's classfactory, if
3768                          * this isnt done, random crashes can occur :/ */
3769                         module_names.push_back(filename);
3770                 }
3771                 else
3772                 {
3773                         log(DEFAULT,"Unable to load %s",modfile);
3774                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3775                         return false;
3776                 }
3777         }
3778         else
3779         {
3780                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3781                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3782                 return false;
3783         }
3784         MODCOUNT++;
3785         return true;
3786 }
3787
3788 int InspIRCd(void)
3789 {
3790         struct sockaddr_in client,server;
3791         char addrs[MAXBUF][255];
3792         int incomingSockfd, result = TRUE;
3793         socklen_t length;
3794         int count = 0;
3795         int selectResult = 0, selectResult2 = 0;
3796         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3797         fd_set selectFds;
3798         timeval tv;
3799
3800         log_file = fopen("ircd.log","a+");
3801         if (!log_file)
3802         {
3803                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3804                 Exit(ERROR);
3805         }
3806
3807         log(DEFAULT,"$Id$");
3808         if (geteuid() == 0)
3809         {
3810                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3811                 Exit(ERROR);
3812                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3813         }
3814         SetupCommandTable();
3815         log(DEBUG,"InspIRCd: startup: default command table set up");
3816
3817         ReadConfig(true,NULL);
3818         if (DieValue[0])
3819         {
3820                 printf("WARNING: %s\n\n",DieValue);
3821                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3822                 exit(0);
3823         }
3824         log(DEBUG,"InspIRCd: startup: read config");
3825
3826         int clientportcount = 0, serverportcount = 0;
3827
3828         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3829         {
3830                 ConfValue("bind","port",count,configToken,&config_f);
3831                 ConfValue("bind","address",count,Addr,&config_f);
3832                 ConfValue("bind","type",count,Type,&config_f);
3833                 if (!strcmp(Type,"servers"))
3834                 {
3835                         char Default[MAXBUF];
3836                         strcpy(Default,"no");
3837                         ConfValue("bind","default",count,Default,&config_f);
3838                         if (strchr(Default,'y'))
3839                         {
3840                                 defaultRoute = serverportcount;
3841                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3842                         }
3843                         me[serverportcount] = new serverrec(ServerName,100L,false);
3844                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
3845                         {
3846                                 log(DEFAULT,"Warning: Failed to bind port %lu",(unsigned long)atoi(configToken));
3847                                 printf("Warning: Failed to bind port %lu\n",(unsigned long)atoi(configToken));
3848                         }
3849                         else
3850                         {
3851                                 serverportcount++;
3852                         }
3853                 }
3854                 else
3855                 {
3856                         ports[clientportcount] = atoi(configToken);
3857                         strlcpy(addrs[clientportcount],Addr,256);
3858                         clientportcount++;
3859                 }
3860                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3861         }
3862         portCount = clientportcount;
3863         UDPportCount = serverportcount;
3864
3865         log(DEBUG,"InspIRCd: startup: read %lu total client ports and %lu total server ports",(unsigned long)portCount,(unsigned long)UDPportCount);
3866         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3867
3868         printf("\n");
3869
3870         /* BugFix By Craig! :p */
3871         MODCOUNT = -1;
3872         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
3873         {
3874                 ConfValue("module","name",count,configToken,&config_f);
3875                 printf("Loading module... \033[1;32m%s\033[0m\n",configToken);
3876                 if (!LoadModule(configToken))
3877                 {
3878                         log(DEFAULT,"Exiting due to a module loader error.");
3879                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3880                         Exit(0);
3881                 }
3882         }
3883         log(DEFAULT,"Total loaded modules: %lu",(unsigned long)MODCOUNT+1);
3884
3885         startup_time = time(NULL);
3886
3887         char PID[MAXBUF];
3888         ConfValue("pid","file",0,PID,&config_f);
3889         // write once here, to try it out and make sure its ok
3890         WritePID(PID);
3891
3892         /* setup select call */
3893         FD_ZERO(&selectFds);
3894         log(DEBUG,"InspIRCd: startup: zero selects");
3895         log(VERBOSE,"InspIRCd: startup: portCount = %lu", (unsigned long)portCount);
3896
3897         for (count = 0; count < portCount; count++)
3898         {
3899                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3900                 {
3901                         log(DEBUG,"InspIRCd: startup: bad fd %lu",(unsigned long)openSockfd[boundPortCount]);
3902                         return(ERROR);
3903                 }
3904                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3905                 {
3906                         log(DEFAULT,"InspIRCd: startup: failed to bind port %lu",(unsigned long)ports[count]);
3907                 }
3908                 else    /* well we at least bound to one socket so we'll continue */
3909                 {
3910                         boundPortCount++;
3911                 }
3912         }
3913
3914         log(DEBUG,"InspIRCd: startup: total bound ports %lu",(unsigned long)boundPortCount);
3915
3916         /* if we didn't bind to anything then abort */
3917         if (boundPortCount == 0)
3918         {
3919                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3920                 printf("\nERROR: Was not able to bind any of %lu ports! Please check your configuration.\n\n", (unsigned long)portCount);
3921                 return (ERROR);
3922         }
3923
3924
3925         printf("\nInspIRCd is now running!\n");
3926
3927         if (nofork)
3928         {
3929                 log(VERBOSE,"Not forking as -nofork was specified");
3930         }
3931         else
3932         {
3933                 if (DaemonSeed() == ERROR)
3934                 {
3935                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3936                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3937                         Exit(ERROR);
3938                 }
3939         }
3940
3941         WritePID(PID);
3942
3943         length = sizeof (client);
3944         char udp_msg[MAXBUF],tcp_host[MAXBUF];
3945
3946         fd_set serverfds;
3947         timeval tvs;
3948         tvs.tv_usec = 10000L;
3949         tvs.tv_sec = 0;
3950         tv.tv_sec = 0;
3951         tv.tv_usec = 10000L;
3952         char data[65535];
3953         timeval tval;
3954         fd_set sfd;
3955         tval.tv_usec = 10000L;
3956         tval.tv_sec = 0;
3957         int total_in_this_set = 0;
3958         int v = 0;
3959         bool expire_run = false;
3960
3961         /* main loop, this never returns */
3962         for (;;)
3963         {
3964 #ifdef _POSIX_PRIORITY_SCHEDULING
3965                 sched_yield();
3966 #endif
3967                 // poll dns queue
3968                 dns_poll();
3969                 FD_ZERO(&sfd);
3970
3971                 // we only read time() once per iteration rather than tons of times!
3972                 TIME = time(NULL);
3973
3974                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3975                 // them in a list, then reap the list every second or so.
3976                 if (((TIME % 5) == 0) && (!expire_run))
3977                 {
3978                         expire_lines();
3979                         FOREACH_MOD OnBackgroundTimer(TIME);
3980                         expire_run = true;
3981                         continue;
3982                 }
3983                 if ((TIME % 5) == 1)
3984                         expire_run = false;
3985
3986                 // fix by brain - this must be below any manipulation of the hashmap by modules
3987                 user_hash::iterator count2 = clientlist.begin();
3988
3989                 FD_ZERO(&serverfds);
3990
3991                 for (int x = 0; x != UDPportCount; x++)
3992                 {
3993                         if (me[x])
3994                                 FD_SET(me[x]->fd, &serverfds);
3995                 }
3996
3997                 // serverFds timevals went here
3998
3999                 tvs.tv_usec = 30000L;
4000                 tvs.tv_sec = 0;
4001                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
4002                 if (servresult > 0)
4003                 {
4004                         for (int x = 0; x != UDPportCount; x++)
4005                         {
4006                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
4007                                 {
4008                                         char remotehost[MAXBUF],resolved[MAXBUF];
4009                                         length = sizeof (client);
4010                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
4011                                         if (incomingSockfd != -1)
4012                                         {
4013                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
4014                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
4015                                                 {
4016                                                         strlcpy(resolved,remotehost,MAXBUF);
4017                                                 }
4018                                                 // add to this connections ircd_connector vector
4019                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
4020                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
4021                                         }
4022                                 }
4023                         }
4024                 }
4025
4026                 for (int x = 0; x < UDPportCount; x++)
4027                 {
4028                         std::deque<std::string> msgs;
4029                         msgs.clear();
4030                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
4031                         {
4032                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
4033                                 {
4034                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
4035                                         log(DEBUG,"Processing: %s",udp_msg);
4036                                         if (!udp_msg[0])
4037                                         {
4038                                                 log(DEBUG,"Invalid string from %s [route%lu]",tcp_host,(unsigned long)x);
4039                                                 break;
4040                                         }
4041                                         // during a netburst, send all data to all other linked servers
4042                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
4043                                         {
4044                                                 if (is_uline(tcp_host))
4045                                                 {
4046                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
4047                                                         {
4048                                                                 NetSendToAllExcept(tcp_host,udp_msg);
4049                                                         }
4050                                                 }
4051                                                 else
4052                                                         NetSendToAllExcept(tcp_host,udp_msg);
4053                                         }
4054                                         std::string msg = udp_msg;
4055                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4056                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
4057                                         handle_link_packet(udp_msg, tcp_host, me[x]);
4058                                 }
4059                                 goto label;
4060                         }
4061                 }
4062
4063
4064         while (count2 != clientlist.end())
4065         {
4066                 FD_ZERO(&sfd);
4067                 total_in_this_set = 0;
4068
4069                 user_hash::iterator xcount = count2;
4070                 user_hash::iterator endingiter = count2;
4071
4072                 if (count2 == clientlist.end()) break;
4073
4074                 if (count2->second)
4075                 if (count2->second->fd != 0)
4076                 {
4077                         // assemble up to 64 sockets into an fd_set
4078                         // to implement a pooling mechanism.
4079                         //
4080                         // This should be up to 64x faster than the
4081                         // old implementation.
4082                         while (total_in_this_set < 64)
4083                         {
4084                                 if (count2 != clientlist.end())
4085                                 {
4086                                         // we don't check the state of remote users.
4087                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
4088                                         {
4089                                                 FD_SET (count2->second->fd, &sfd);
4090
4091                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4092                                                 // their connection class.
4093                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
4094                                                 {
4095                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
4096                                                         kill_link(count2->second,"Registration timeout");
4097                                                         goto label;
4098                                                 }
4099                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
4100                                                 {
4101                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4102                                                         count2->second->dns_done = true;
4103                                                         FullConnectUser(count2->second);
4104                                                         goto label;
4105                                                 }
4106                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
4107                                                 {
4108                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4109                                                         FullConnectUser(count2->second);
4110                                                         goto label;
4111                                                 }
4112                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
4113                                                 {
4114                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
4115                                                         {
4116                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
4117                                                                 kill_link(count2->second,"Ping timeout");
4118                                                                 goto label;
4119                                                         }
4120                                                         Write(count2->second->fd,"PING :%s",ServerName);
4121                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
4122                                                         count2->second->lastping = 0;
4123                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
4124                                                 }
4125                                         }
4126                                         count2++;
4127                                         total_in_this_set++;
4128                                 }
4129                                 else break;
4130                         }
4131
4132                         endingiter = count2;
4133                         count2 = xcount; // roll back to where we were
4134
4135                         v = 0;
4136
4137                         // tvals defined here
4138
4139                         tval.tv_usec = 1000L;
4140                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4141
4142                         // now loop through all of the items in this pool if any are waiting
4143                         //if (selectResult2 > 0)
4144                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4145                         {
4146
4147 #ifdef _POSIX_PRIORITY_SCHEDULING
4148                                 sched_yield();
4149 #endif
4150
4151                                 result = EAGAIN;
4152                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
4153                                 {
4154                                         result = read(count2a->second->fd, data, 65535);
4155                                         if (result)
4156                                         {
4157                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4158                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4159                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4160                                                 for (int checker = 0; checker < result; checker++)
4161                                                 {
4162                                                         if ((data[checker] == 0) || (data[checker] == 7))
4163                                                                 data[checker] = ' ';
4164                                                 }
4165                                                 if (result > 0)
4166                                                         data[result] = '\0';
4167                                                 userrec* current = count2a->second;
4168                                                 int currfd = current->fd;
4169                                                 int floodlines = 0;
4170                                                 // add the data to the users buffer
4171                                                 if (!current->AddBuffer(data))
4172                                                 {
4173                                                         // AddBuffer returned false, theres too much data in the user's buffer and theyre up to no good.
4174                                                         if (current->registered == 7)
4175                                                         {
4176                                                                 kill_link(current,"RecvQ exceeded");
4177                                                         }
4178                                                         else
4179                                                         {
4180                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4181                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4182                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4183                                                                 apply_lines();
4184                                                         }
4185                                                         goto label;
4186                                                 }
4187                                                 if (current->recvq.length() > NetBufferSize)
4188                                                 {
4189                                                         if (current->registered == 7)
4190                                                         {
4191                                                                 kill_link(current,"RecvQ exceeded");
4192                                                         }
4193                                                         else
4194                                                         {
4195                                                                 WriteOpers("*** Excess flood from %s",current->ip);
4196                                                                 log(DEFAULT,"Excess flood from: %s",current->ip);
4197                                                                 add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4198                                                                 apply_lines();
4199                                                         }
4200                                                         goto label;
4201                                                 }
4202                                                 // while there are complete lines to process...
4203                                                 while (current->BufferIsReady())
4204                                                 {
4205                                                         floodlines++;
4206                                                         if (TIME > current->reset_due)
4207                                                         {
4208                                                                 current->reset_due = TIME + current->threshold;
4209                                                                 current->lines_in = 0;
4210                                                         }
4211                                                         current->lines_in++;
4212                                                         if (current->lines_in > current->flood)
4213                                                         {
4214                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4215                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4216                                                                 kill_link(current,"Excess flood");
4217                                                                 goto label;
4218                                                         }
4219                                                         if ((floodlines > current->flood) && (current->flood != 0))
4220                                                         {
4221                                                                 if (current->registered == 7)
4222                                                                 {
4223                                                                         log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4224                                                                         WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4225                                                                         kill_link(current,"Excess flood");
4226                                                                 }
4227                                                                 else
4228                                                                 {
4229                                                                         add_zline(120,ServerName,"Flood from unregistered connection",current->ip);
4230                                                                         apply_lines();
4231                                                                 }
4232                                                                 goto label;
4233                                                         }
4234                                                         char sanitized[MAXBUF];
4235                                                         // use GetBuffer to copy single lines into the sanitized string
4236                                                         std::string single_line = current->GetBuffer();
4237                                                         if (single_line.length()>512)
4238                                                         {
4239                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4240                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4241                                                                 kill_link(current,"Excess flood");
4242                                                                 goto label;
4243                                                         }
4244                                                         strlcpy(sanitized,single_line.c_str(),MAXBUF);
4245                                                         if (*sanitized)
4246                                                         {
4247                                                                 // we're gonna re-scan to check if the nick is gone, after every
4248                                                                 // command - if it has, we're gonna bail
4249                                                                 bool find_again = false;
4250                                                                 process_buffer(sanitized,current);
4251                                                                 // look for the user's record in case it's changed
4252                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4253                                                                 {
4254                                                                         if (c2->second->fd == currfd)
4255                                                                         {
4256                                                                                 // found again, update pointer
4257                                                                                 current == c2->second;
4258                                                                                 find_again = true;
4259                                                                                 break;
4260                                                                         }
4261                                                                 }
4262                                                                 if (!find_again)
4263                                                                         goto label;
4264
4265                                                         }
4266                                                 }
4267                                                 goto label;
4268                                         }
4269
4270                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4271                                         {
4272                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4273                                                 kill_link(count2a->second,strerror(errno));
4274                                                 goto label;
4275                                         }
4276                                 }
4277                                 // result EAGAIN means nothing read
4278                                 if (result == EAGAIN)
4279                                 {
4280                                 }
4281                                 else
4282                                 if (result == 0)
4283                                 {
4284                                         if (count2->second)
4285                                         {
4286                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4287                                                 kill_link(count2a->second,"Client exited");
4288                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4289                                                 log(DEBUG,"Bailing from client exit");
4290                                                 goto label;
4291                                         }
4292                                 }
4293                                 else if (result > 0)
4294                                 {
4295                                 }
4296                         }
4297                 }
4298                 for (int q = 0; q < total_in_this_set; q++)
4299                 {
4300                         count2++;
4301                 }
4302         }
4303
4304 #ifdef _POSIX_PRIORITY_SCHEDULING
4305         sched_yield();
4306 #endif
4307
4308         // set up select call
4309         for (count = 0; count < boundPortCount; count++)
4310         {
4311                 FD_SET (openSockfd[count], &selectFds);
4312         }
4313
4314         tv.tv_usec = 30000L;
4315         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4316
4317         /* select is reporting a waiting socket. Poll them all to find out which */
4318         if (selectResult > 0)
4319         {
4320                 char target[MAXBUF], resolved[MAXBUF];
4321                 for (count = 0; count < boundPortCount; count++)
4322                 {
4323                         if (FD_ISSET (openSockfd[count], &selectFds))
4324                         {
4325                                 length = sizeof (client);
4326                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4327
4328                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4329                                 strlcpy (resolved, target, MAXBUF);
4330
4331                                 if (incomingSockfd < 0)
4332                                 {
4333                                         WriteOpers("*** WARNING: Accept failed on port %lu (%s)",(unsigned long)ports[count],target);
4334                                         log(DEBUG,"InspIRCd: accept failed: %lu",(unsigned long)ports[count]);
4335                                 }
4336                                 else
4337                                 {
4338                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4339                                         log(DEBUG,"InspIRCd: adding client on port %lu fd=%lu",(unsigned long)ports[count],(unsigned long)incomingSockfd);
4340                                 }
4341                                 goto label;
4342                         }
4343                 }
4344         }
4345         label:
4346         if (0) {};
4347 #ifdef _POSIX_PRIORITY_SCHEDULING
4348         sched_yield();
4349 #endif
4350 }
4351 /* not reached */
4352 close (incomingSockfd);
4353 }
4354