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