src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55 #include "mode.h"
  56 #include "commands.h"
  57 #include "xline.h"
  58 #include "inspstring.h"
  59 #include "dnsqueue.h"
  60
  61 #ifdef GCC3
  62 #define nspace __gnu_cxx
  63 #else
  64 #define nspace std
  65 #endif
  66
  67 int LogLevel = DEFAULT;
  68 char ServerName[MAXBUF];
  69 char Network[MAXBUF];
  70 char ServerDesc[MAXBUF];
  71 char AdminName[MAXBUF];
  72 char AdminEmail[MAXBUF];
  73 char AdminNick[MAXBUF];
  74 char diepass[MAXBUF];
  75 char restartpass[MAXBUF];
  76 char motd[MAXBUF];
  77 char rules[MAXBUF];
  78 char list[MAXBUF];
  79 char PrefixQuit[MAXBUF];
  80 char DieValue[MAXBUF];
  81 char DNSServer[MAXBUF];
  82 int debugging =  0;
  83 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  84 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  85 int DieDelay  =  5;
  86 time_t startup_time = time(NULL);
  87 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  88 extern int MaxWhoResults;
  89 time_t nb_start = 0;
  90 int dns_timeout = 5;
  91
  92 char DisabledCommands[MAXBUF];
  93
  94 bool AllowHalfop = true;
  95 bool AllowProtect = true;
  96 bool AllowFounder = true;
  97
  98 extern std::vector<Module*> modules;
  99 std::vector<std::string> module_names;
 100 extern std::vector<ircd_module*> factory;
 101
 102 extern int MODCOUNT;
 103 int openSockfd[MAXSOCKS];
 104 bool nofork = false;
 105 bool unlimitcore = false;
 106
 107 time_t TIME = time(NULL);
 108
 109 namespace nspace
 110 {
 111 #ifdef GCC34
 112         template<> struct hash<in_addr>
 113 #else
 114         template<> struct nspace::hash<in_addr>
 115 #endif
 116         {
 117                 size_t operator()(const struct in_addr &a) const
 118                 {
 119                         size_t q;
 120                         memcpy(&q,&a,sizeof(size_t));
 121                         return q;
 122                 }
 123         };
 124 #ifdef GCC34
 125         template<> struct hash<string>
 126 #else
 127         template<> struct nspace::hash<string>
 128 #endif
 129         {
 130                 size_t operator()(const string &s) const
 131                 {
 132                         char a[MAXBUF];
 133                         static struct hash<const char *> strhash;
 134                         strlcpy(a,s.c_str(),MAXBUF);
 135                         strlower(a);
 136                         return strhash(a);
 137                 }
 138         };
 139 }
 140
 141
 142 struct StrHashComp
 143 {
 144
 145         bool operator()(const string& s1, const string& s2) const
 146         {
 147                 char a[MAXBUF],b[MAXBUF];
 148                 strlcpy(a,s1.c_str(),MAXBUF);
 149                 strlcpy(b,s2.c_str(),MAXBUF);
 150                 strlower(a);
 151                 strlower(b);
 152                 return (strcasecmp(a,b) == 0);
 153         }
 154
 155 };
 156
 157 struct InAddr_HashComp
 158 {
 159
 160         bool operator()(const in_addr &s1, const in_addr &s2) const
 161         {
 162                 size_t q;
 163                 size_t p;
 164
 165                 memcpy(&q,&s1,sizeof(size_t));
 166                 memcpy(&p,&s2,sizeof(size_t));
 167
 168                 return (q == p);
 169         }
 170
 171 };
 172
 173
 174 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 175 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 176 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 177 typedef std::deque<command_t> command_table;
 178
 179 serverrec* me[32];
 180
 181 FILE *log_file;
 182
 183 user_hash clientlist;
 184 chan_hash chanlist;
 185 user_hash whowas;
 186 command_table cmdlist;
 187 file_cache MOTD;
 188 file_cache RULES;
 189 address_cache IP;
 190
 191 ClassVector Classes;
 192
 193 struct linger linger = { 0 };
 194 char MyExecutable[1024];
 195 int boundPortCount = 0;
 196 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 197 int defaultRoute = 0;
 198 char ModPath[MAXBUF];
 199
 200 connection C;
 201
 202 long MyKey = C.GenKey();
 203
 204 /* prototypes */
 205
 206 int has_channel(userrec *u, chanrec *c);
 207 int usercount(chanrec *c);
 208 int usercount_i(chanrec *c);
 209 char* Passwd(userrec *user);
 210 bool IsDenied(userrec *user);
 211 void AddWhoWas(userrec* u);
 212
 213 std::vector<long> auth_cookies;
 214 std::stringstream config_f(stringstream::in | stringstream::out);
 215
 216
 217
 218 long GetRevision()
 219 {
 220         char Revision[] = "$Revision$";
 221         char *s1 = Revision;
 222         char *savept;
 223         char *v2 = strtok_r(s1," ",&savept);
 224         s1 = savept;
 225         v2 = strtok_r(s1," ",&savept);
 226         s1 = savept;
 227         return (long)(atof(v2)*10000);
 228 }
 229
 230
 231 std::string getservername()
 232 {
 233         return ServerName;
 234 }
 235
 236 std::string getserverdesc()
 237 {
 238         return ServerDesc;
 239 }
 240
 241 std::string getnetworkname()
 242 {
 243         return Network;
 244 }
 245
 246 std::string getadminname()
 247 {
 248         return AdminName;
 249 }
 250
 251 std::string getadminemail()
 252 {
 253         return AdminEmail;
 254 }
 255
 256 std::string getadminnick()
 257 {
 258         return AdminNick;
 259 }
 260
 261 void log(int level,char *text, ...)
 262 {
 263         char textbuffer[MAXBUF];
 264         va_list argsPtr;
 265         time_t rawtime;
 266         struct tm * timeinfo;
 267         if (level < LogLevel)
 268                 return;
 269
 270         time(&rawtime);
 271         timeinfo = localtime (&rawtime);
 272
 273         if (log_file)
 274         {
 275                 char b[MAXBUF];
 276                 va_start (argsPtr, text);
 277                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 278                 va_end(argsPtr);
 279                 strlcpy(b,asctime(timeinfo),MAXBUF);
 280                 b[strlen(b)-1] = ':';
 281                 fprintf(log_file,"%s %s\n",b,textbuffer);
 282                 if (nofork)
 283                 {
 284                         // nofork enabled? display it on terminal too
 285                         printf("%s %s\n",b,textbuffer);
 286                 }
 287         }
 288 }
 289
 290 void readfile(file_cache &F, const char* fname)
 291 {
 292         FILE* file;
 293         char linebuf[MAXBUF];
 294
 295         log(DEBUG,"readfile: loading %s",fname);
 296         F.clear();
 297         file =  fopen(fname,"r");
 298         if (file)
 299         {
 300                 while (!feof(file))
 301                 {
 302                         fgets(linebuf,sizeof(linebuf),file);
 303                         linebuf[strlen(linebuf)-1]='\0';
 304                         if (!strcmp(linebuf,""))
 305                         {
 306                                 strcpy(linebuf,"  ");
 307                         }
 308                         if (!feof(file))
 309                         {
 310                                 F.push_back(linebuf);
 311                         }
 312                 }
 313                 fclose(file);
 314         }
 315         else
 316         {
 317                 log(DEBUG,"readfile: failed to load file: %s",fname);
 318         }
 319         log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 320 }
 321
 322 void ReadConfig(bool bail, userrec* user)
 323 {
 324         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 325         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
 326         ConnectClass c;
 327         std::stringstream errstr;
 328
 329         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 330         {
 331                 errstr.seekg(0);
 332                 if (bail)
 333                 {
 334                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 335                         Exit(0);
 336                 }
 337                 else
 338                 {
 339                         char dataline[1024];
 340                         if (user)
 341                         {
 342                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 343                                 while (!errstr.eof())
 344                                 {
 345                                         errstr.getline(dataline,1024);
 346                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 347                                 }
 348                         }
 349                         else
 350                         {
 351                                 WriteOpers("There were errors in the configuration file:",user->nick);
 352                                 while (!errstr.eof())
 353                                 {
 354                                         errstr.getline(dataline,1024);
 355                                         WriteOpers(dataline);
 356                                 }
 357                         }
 358                         return;
 359                 }
 360         }
 361
 362         ConfValue("server","name",0,ServerName,&config_f);
 363         ConfValue("server","description",0,ServerDesc,&config_f);
 364         ConfValue("server","network",0,Network,&config_f);
 365         ConfValue("admin","name",0,AdminName,&config_f);
 366         ConfValue("admin","email",0,AdminEmail,&config_f);
 367         ConfValue("admin","nick",0,AdminNick,&config_f);
 368         ConfValue("files","motd",0,motd,&config_f);
 369         ConfValue("files","rules",0,rules,&config_f);
 370         ConfValue("power","diepass",0,diepass,&config_f);
 371         ConfValue("power","pause",0,pauseval,&config_f);
 372         ConfValue("power","restartpass",0,restartpass,&config_f);
 373         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 374         ConfValue("die","value",0,DieValue,&config_f);
 375         ConfValue("options","loglevel",0,dbg,&config_f);
 376         ConfValue("options","netbuffersize",0,NB,&config_f);
 377         ConfValue("options","maxwho",0,MW,&config_f);
 378         ConfValue("options","allowhalfop",0,AH,&config_f);
 379         ConfValue("options","allowprotect",0,AP,&config_f);
 380         ConfValue("options","allowfounder",0,AF,&config_f);
 381         ConfValue("dns","server",0,DNSServer,&config_f);
 382         ConfValue("dns","timeout",0,DNT,&config_f);
 383         ConfValue("options","moduledir",0,ModPath,&config_f);
 384         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 385
 386         NetBufferSize = atoi(NB);
 387         MaxWhoResults = atoi(MW);
 388         dns_timeout = atoi(DNT);
 389         if (!dns_timeout)
 390                 dns_timeout = 5;
 391         if (!strcmp(DNSServer,""))
 392                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 393         if (!strcmp(ModPath,""))
 394                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 395         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 396         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 397         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 398         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 399         {
 400                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 401                 NetBufferSize = 10240;
 402         }
 403         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 404         {
 405                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 406                 MaxWhoResults = 128;
 407         }
 408         if (!strcmp(dbg,"debug"))
 409                 LogLevel = DEBUG;
 410         if (!strcmp(dbg,"verbose"))
 411                 LogLevel = VERBOSE;
 412         if (!strcmp(dbg,"default"))
 413                 LogLevel = DEFAULT;
 414         if (!strcmp(dbg,"sparse"))
 415                 LogLevel = SPARSE;
 416         if (!strcmp(dbg,"none"))
 417                 LogLevel = NONE;
 418         readfile(MOTD,motd);
 419         log(DEFAULT,"Reading message of the day...");
 420         readfile(RULES,rules);
 421         log(DEFAULT,"Reading connect classes...");
 422         Classes.clear();
 423         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 424         {
 425                 strcpy(Value,"");
 426                 ConfValue("connect","allow",i,Value,&config_f);
 427                 ConfValue("connect","timeout",i,timeout,&config_f);
 428                 ConfValue("connect","flood",i,flood,&config_f);
 429                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 430                 if (strcmp(Value,""))
 431                 {
 432                         strlcpy(c.host,Value,MAXBUF);
 433                         c.type = CC_ALLOW;
 434                         strlcpy(Value,"",MAXBUF);
 435                         ConfValue("connect","password",i,Value,&config_f);
 436                         strlcpy(c.pass,Value,MAXBUF);
 437                         c.registration_timeout = 90; // default is 2 minutes
 438                         c.pingtime = 120;
 439                         c.flood = atoi(flood);
 440                         if (atoi(timeout)>0)
 441                         {
 442                                 c.registration_timeout = atoi(timeout);
 443                         }
 444                         if (atoi(pfreq)>0)
 445                         {
 446                                 c.pingtime = atoi(pfreq);
 447                         }
 448                         Classes.push_back(c);
 449                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 450                 }
 451                 else
 452                 {
 453                         ConfValue("connect","deny",i,Value,&config_f);
 454                         strlcpy(c.host,Value,MAXBUF);
 455                         c.type = CC_DENY;
 456                         Classes.push_back(c);
 457                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 458                 }
 459
 460         }
 461         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 462         read_xline_defaults();
 463         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 464         apply_lines();
 465         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 466         if (!bail)
 467         {
 468                 log(DEFAULT,"Adding and removing modules due to rehash...");
 469
 470                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 471
 472                 // store the old module names
 473                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 474                 {
 475                         old_module_names.push_back(*t);
 476                 }
 477
 478                 // get the new module names
 479                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 480                 {
 481                         ConfValue("module","name",count2,Value,&config_f);
 482                         new_module_names.push_back(Value);
 483                 }
 484
 485                 // now create a list of new modules that are due to be loaded
 486                 // and a seperate list of modules which are due to be unloaded
 487                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 488                 {
 489                         bool added = true;
 490                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 491                         {
 492                                 if (*old == *_new)
 493                                         added = false;
 494                         }
 495                         if (added)
 496                                 added_modules.push_back(*_new);
 497                 }
 498                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 499                 {
 500                         bool removed = true;
 501                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 502                         {
 503                                 if (*newm == *oldm)
 504                                         removed = false;
 505                         }
 506                         if (removed)
 507                                 removed_modules.push_back(*oldm);
 508                 }
 509                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 510                 // to be removed.
 511                 int rem = 0, add = 0;
 512                 if (!removed_modules.empty())
 513                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 514                 {
 515                         if (UnloadModule(removing->c_str()))
 516                         {
 517                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 518                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 519                                 rem++;
 520                         }
 521                         else
 522                         {
 523                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 524                         }
 525                 }
 526                 if (!added_modules.empty())
 527                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 528                 {
 529                         if (LoadModule(adding->c_str()))
 530                         {
 531                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 532                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 533                                 add++;
 534                         }
 535                         else
 536                         {
 537                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 538                         }
 539                 }
 540                 log(DEFAULT,"Successfully unloaded %d of %d modules and loaded %d of %d modules.",rem,removed_modules.size(),add,added_modules.size());
 541         }
 542 }
 543
 544 /* write formatted text to a socket, in same format as printf */
 545
 546 void Write(int sock,char *text, ...)
 547 {
 548         if (sock == FD_MAGIC_NUMBER)
 549                 return;
 550         if (!text)
 551         {
 552                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 553                 return;
 554         }
 555         char textbuffer[MAXBUF];
 556         va_list argsPtr;
 557         char tb[MAXBUF];
 558
 559         va_start (argsPtr, text);
 560         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 561         va_end(argsPtr);
 562         snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 563         chop(tb);
 564         if (sock != -1)
 565         {
 566                 write(sock,tb,strlen(tb));
 567         }
 568 }
 569
 570 /* write a server formatted numeric response to a single socket */
 571
 572 void WriteServ(int sock, char* text, ...)
 573 {
 574         if (sock == FD_MAGIC_NUMBER)
 575                 return;
 576         if (!text)
 577         {
 578                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 579                 return;
 580         }
 581         char textbuffer[MAXBUF],tb[MAXBUF];
 582         va_list argsPtr;
 583         va_start (argsPtr, text);
 584
 585         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 586         va_end(argsPtr);
 587         snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 588         chop(tb);
 589         if (sock != -1)
 590         {
 591                 write(sock,tb,strlen(tb));
 592         }
 593 }
 594
 595 /* write text from an originating user to originating user */
 596
 597 void WriteFrom(int sock, userrec *user,char* text, ...)
 598 {
 599         if (sock == FD_MAGIC_NUMBER)
 600                 return;
 601         if ((!text) || (!user))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF],tb[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609
 610         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 611         va_end(argsPtr);
 612         snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 613         chop(tb);
 614         if (sock != -1)
 615         {
 616                 write(sock,tb,strlen(tb));
 617         }
 618 }
 619
 620 /* write text to an destination user from a source user (e.g. user privmsg) */
 621
 622 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 623 {
 624         if ((!dest) || (!data))
 625         {
 626                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 627                 return;
 628         }
 629         if (dest->fd == FD_MAGIC_NUMBER)
 630                 return;
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, data);
 634         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 635         va_end(argsPtr);
 636         chop(tb);
 637
 638         // if no source given send it from the server.
 639         if (!source)
 640         {
 641                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 642         }
 643         else
 644         {
 645                 WriteFrom(dest->fd,source,"%s",textbuffer);
 646         }
 647 }
 648
 649 /* write formatted text from a source user to all users on a channel
 650  * including the sender (NOT for privmsg, notice etc!) */
 651
 652 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 653 {
 654         if ((!Ptr) || (!user) || (!text))
 655         {
 656                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 657                 return;
 658         }
 659         char textbuffer[MAXBUF];
 660         va_list argsPtr;
 661         va_start (argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 665         {
 666                 if (has_channel(i->second,Ptr))
 667                 {
 668                         if (i->second->fd != FD_MAGIC_NUMBER)
 669                                 WriteTo(user,i->second,"%s",textbuffer);
 670                 }
 671         }
 672 }
 673
 674 /* write formatted text from a source user to all users on a channel
 675  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 676  * users on remote servers */
 677
 678 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 679 {
 680         if ((!Ptr) || (!text))
 681         {
 682                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 683                 return;
 684         }
 685         char textbuffer[MAXBUF];
 686         va_list argsPtr;
 687         va_start (argsPtr, text);
 688         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 689         va_end(argsPtr);
 690         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 691         {
 692                 if (has_channel(i->second,Ptr))
 693                 {
 694                         if ((i->second->fd != -1) && (i->second->fd != FD_MAGIC_NUMBER))
 695                         {
 696                                 if (!user)
 697                                 {
 698                                         WriteServ(i->second->fd,"%s",textbuffer);
 699                                 }
 700                                 else
 701                                 {
 702                                         WriteTo(user,i->second,"%s",textbuffer);
 703                                 }
 704                         }
 705                 }
 706         }
 707 }
 708
 709
 710 void WriteChannelWithServ(char* ServName, chanrec* Ptr, userrec* user, char* text, ...)
 711 {
 712         if ((!Ptr) || (!user) || (!text))
 713         {
 714                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 715                 return;
 716         }
 717         char textbuffer[MAXBUF];
 718         va_list argsPtr;
 719         va_start (argsPtr, text);
 720         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 721         va_end(argsPtr);
 722         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 723         {
 724                 if (i->second)
 725                 {
 726                         if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 727                         {
 728                                 WriteServ(i->second->fd,"%s",textbuffer);
 729                         }
 730                 }
 731         }
 732 }
 733
 734
 735 /* write formatted text from a source user to all users on a channel except
 736  * for the sender (for privmsg etc) */
 737
 738 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 739 {
 740         if ((!Ptr) || (!user) || (!text))
 741         {
 742                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 743                 return;
 744         }
 745         char textbuffer[MAXBUF];
 746         va_list argsPtr;
 747         va_start (argsPtr, text);
 748         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 749         va_end(argsPtr);
 750
 751         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 752         {
 753                 if (i->second)
 754                 {
 755                         if ((has_channel(i->second,Ptr)) && (user != i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 756                         {
 757                                 WriteTo(user,i->second,"%s",textbuffer);
 758                         }
 759                 }
 760         }
 761 }
 762
 763
 764 std::string GetServerDescription(char* servername)
 765 {
 766         for (int j = 0; j < 32; j++)
 767         {
 768                 if (me[j] != NULL)
 769                 {
 770                         for (int k = 0; k < me[j]->connectors.size(); k++)
 771                         {
 772                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 773                                 {
 774                                         return me[j]->connectors[k].GetDescription();
 775                                 }
 776                         }
 777                 }
 778                 return ServerDesc; // not a remote server that can be found, it must be me.
 779         }
 780 }
 781
 782
 783 /* write a formatted string to all users who share at least one common
 784  * channel, including the source user e.g. for use in NICK */
 785
 786 void WriteCommon(userrec *u, char* text, ...)
 787 {
 788         if (!u)
 789         {
 790                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 791                 return;
 792         }
 793
 794         if (u->registered != 7) {
 795                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 796                 return;
 797         }
 798
 799         char textbuffer[MAXBUF];
 800         va_list argsPtr;
 801         va_start (argsPtr, text);
 802         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 803         va_end(argsPtr);
 804
 805         WriteFrom(u->fd,u,"%s",textbuffer);
 806
 807         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 808         {
 809                 if (i->second)
 810                 {
 811                         if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 812                         {
 813                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 814                         }
 815                 }
 816         }
 817 }
 818
 819 /* write a formatted string to all users who share at least one common
 820  * channel, NOT including the source user e.g. for use in QUIT */
 821
 822 void WriteCommonExcept(userrec *u, char* text, ...)
 823 {
 824         if (!u)
 825         {
 826                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 827                 return;
 828         }
 829
 830         if (u->registered != 7) {
 831                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 832                 return;
 833         }
 834
 835         char textbuffer[MAXBUF];
 836         va_list argsPtr;
 837         va_start (argsPtr, text);
 838         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 839         va_end(argsPtr);
 840
 841         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 842         {
 843                 if (i->second)
 844                 {
 845                         if ((common_channels(u,i->second)) && (u != i->second))
 846                         {
 847                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 848                         }
 849                 }
 850         }
 851 }
 852
 853 void WriteOpers(char* text, ...)
 854 {
 855         if (!text)
 856         {
 857                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 858                 return;
 859         }
 860
 861         char textbuffer[MAXBUF];
 862         va_list argsPtr;
 863         va_start (argsPtr, text);
 864         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 865         va_end(argsPtr);
 866
 867         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 868         {
 869                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 870                 {
 871                         if (strchr(i->second->modes,'o'))
 872                         {
 873                                 if (strchr(i->second->modes,'s'))
 874                                 {
 875                                         // send server notices to all with +s
 876                                         // (TODO: needs SNOMASKs)
 877                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 878                                 }
 879                         }
 880                 }
 881         }
 882 }
 883
 884 // returns TRUE of any users on channel C occupy server 'servername'.
 885
 886 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 887 {
 888         log(DEBUG,"ChanAnyOnThisServer");
 889         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 890         {
 891                 if (has_channel(i->second,c))
 892                 {
 893                         if (!strcasecmp(i->second->server,servername))
 894                         {
 895                                 return true;
 896                         }
 897                 }
 898         }
 899         return false;
 900 }
 901
 902 // returns true if user 'u' shares any common channels with any users on server 'servername'
 903
 904 bool CommonOnThisServer(userrec* u,const char* servername)
 905 {
 906         log(DEBUG,"ChanAnyOnThisServer");
 907         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 908         {
 909                 if ((common_channels(u,i->second)) && (u != i->second))
 910                 {
 911                         if (!strcasecmp(i->second->server,servername))
 912                         {
 913                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 914                                 return true;
 915                         }
 916                 }
 917         }
 918         return false;
 919 }
 920
 921
 922 void NetSendToCommon(userrec* u, char* s)
 923 {
 924         char buffer[MAXBUF];
 925         snprintf(buffer,MAXBUF,"%s",s);
 926
 927         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 928
 929         std::string msg = buffer;
 930         FOREACH_MOD OnPacketTransmit(msg,s);
 931         strlcpy(buffer,msg.c_str(),MAXBUF);
 932
 933         for (int j = 0; j < 32; j++)
 934         {
 935                 if (me[j] != NULL)
 936                 {
 937                         for (int k = 0; k < me[j]->connectors.size(); k++)
 938                         {
 939                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 940                                 {
 941                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 942                                 }
 943                         }
 944                 }
 945         }
 946 }
 947
 948
 949 void NetSendToAll(char* s)
 950 {
 951         char buffer[MAXBUF];
 952         snprintf(buffer,MAXBUF,"%s",s);
 953
 954         log(DEBUG,"NetSendToAll: '%s'",s);
 955
 956         std::string msg = buffer;
 957         FOREACH_MOD OnPacketTransmit(msg,s);
 958         strlcpy(buffer,msg.c_str(),MAXBUF);
 959
 960         for (int j = 0; j < 32; j++)
 961         {
 962                 if (me[j] != NULL)
 963                 {
 964                         for (int k = 0; k < me[j]->connectors.size(); k++)
 965                         {
 966                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 967                         }
 968                 }
 969         }
 970 }
 971
 972 void NetSendToAllAlive(char* s)
 973 {
 974         char buffer[MAXBUF];
 975         snprintf(buffer,MAXBUF,"%s",s);
 976
 977         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 978
 979         std::string msg = buffer;
 980         FOREACH_MOD OnPacketTransmit(msg,s);
 981         strlcpy(buffer,msg.c_str(),MAXBUF);
 982
 983         for (int j = 0; j < 32; j++)
 984         {
 985                 if (me[j] != NULL)
 986                 {
 987                         for (int k = 0; k < me[j]->connectors.size(); k++)
 988                         {
 989                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 990                                 {
 991                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 992                                 }
 993                                 else
 994                                 {
 995                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 996                                 }
 997                         }
 998                 }
 999         }
1000 }
1001
1002
1003 void NetSendToOne(char* target,char* s)
1004 {
1005         char buffer[MAXBUF];
1006         snprintf(buffer,MAXBUF,"%s",s);
1007
1008         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1009
1010         std::string msg = buffer;
1011         FOREACH_MOD OnPacketTransmit(msg,s);
1012         strlcpy(buffer,msg.c_str(),MAXBUF);
1013
1014         for (int j = 0; j < 32; j++)
1015         {
1016                 if (me[j] != NULL)
1017                 {
1018                         for (int k = 0; k < me[j]->connectors.size(); k++)
1019                         {
1020                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1021                                 {
1022                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1023                                 }
1024                         }
1025                 }
1026         }
1027 }
1028
1029 void NetSendToAllExcept(const char* target,char* s)
1030 {
1031         char buffer[MAXBUF];
1032         snprintf(buffer,MAXBUF,"%s",s);
1033
1034         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1035
1036         std::string msg = buffer;
1037         FOREACH_MOD OnPacketTransmit(msg,s);
1038         strlcpy(buffer,msg.c_str(),MAXBUF);
1039
1040         for (int j = 0; j < 32; j++)
1041         {
1042                 if (me[j] != NULL)
1043                 {
1044                         for (int k = 0; k < me[j]->connectors.size(); k++)
1045                         {
1046                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1047                                 {
1048                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1049                                 }
1050                         }
1051                 }
1052         }
1053 }
1054
1055
1056 void WriteMode(const char* modes, int flags, const char* text, ...)
1057 {
1058         if ((!text) || (!modes) || (!flags))
1059         {
1060                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1061                 return;
1062         }
1063
1064         char textbuffer[MAXBUF];
1065         va_list argsPtr;
1066         va_start (argsPtr, text);
1067         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1068         va_end(argsPtr);
1069
1070         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1071         {
1072                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1073                 {
1074                         bool send_to_user = false;
1075
1076                         if (flags == WM_AND)
1077                         {
1078                                 send_to_user = true;
1079                                 for (int n = 0; n < strlen(modes); n++)
1080                                 {
1081                                         if (!hasumode(i->second,modes[n]))
1082                                         {
1083                                                 send_to_user = false;
1084                                                 break;
1085                                         }
1086                                 }
1087                         }
1088                         else if (flags == WM_OR)
1089                         {
1090                                 send_to_user = false;
1091                                 for (int n = 0; n < strlen(modes); n++)
1092                                 {
1093                                         if (hasumode(i->second,modes[n]))
1094                                         {
1095                                                 send_to_user = true;
1096                                                 break;
1097                                         }
1098                                 }
1099                         }
1100
1101                         if (send_to_user)
1102                         {
1103                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1104                         }
1105                 }
1106         }
1107 }
1108
1109
1110 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1111 {
1112         if ((!text) || (!source))
1113         {
1114                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1115                 return;
1116         }
1117
1118         char textbuffer[MAXBUF];
1119         va_list argsPtr;
1120         va_start (argsPtr, text);
1121         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1122         va_end(argsPtr);
1123
1124         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1125         {
1126                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1127                 {
1128                         if (strchr(i->second->modes,'w'))
1129                         {
1130                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1131                         }
1132                 }
1133         }
1134
1135         if (!local_only)
1136         {
1137                 char buffer[MAXBUF];
1138                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1139                 NetSendToAll(buffer);
1140         }
1141 }
1142
1143 /* convert a string to lowercase. Note following special circumstances
1144  * taken from RFC 1459. Many "official" server branches still hold to this
1145  * rule so i will too;
1146  *
1147  *  Because of IRC's scandanavian origin, the characters {}| are
1148  *  considered to be the lower case equivalents of the characters []\,
1149  *  respectively. This is a critical issue when determining the
1150  *  equivalence of two nicknames.
1151  */
1152
1153 void strlower(char *n)
1154 {
1155         if (!n)
1156         {
1157                 return;
1158         }
1159         for (int i = 0; i != strlen(n); i++)
1160         {
1161                 n[i] = tolower(n[i]);
1162                 if (n[i] == '[')
1163                         n[i] = '{';
1164                 if (n[i] == ']')
1165                         n[i] = '}';
1166                 if (n[i] == '\\')
1167                         n[i] = '|';
1168         }
1169 }
1170
1171
1172
1173 /* Find a user record by nickname and return a pointer to it */
1174
1175 userrec* Find(std::string nick)
1176 {
1177         user_hash::iterator iter = clientlist.find(nick);
1178
1179         if (iter == clientlist.end())
1180                 /* Couldn't find it */
1181                 return NULL;
1182
1183         return iter->second;
1184 }
1185
1186 /* find a channel record by channel name and return a pointer to it */
1187
1188 chanrec* FindChan(const char* chan)
1189 {
1190         if (!chan)
1191         {
1192                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1193                 return NULL;
1194         }
1195
1196         chan_hash::iterator iter = chanlist.find(chan);
1197
1198         if (iter == chanlist.end())
1199                 /* Couldn't find it */
1200                 return NULL;
1201
1202         return iter->second;
1203 }
1204
1205
1206 long GetMaxBans(char* name)
1207 {
1208         char CM[MAXBUF];
1209         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1210         {
1211                 ConfValue("banlist","chan",count,CM,&config_f);
1212                 if (match(name,CM))
1213                 {
1214                         ConfValue("banlist","limit",count,CM,&config_f);
1215                         return atoi(CM);
1216                 }
1217         }
1218         return 64;
1219 }
1220
1221
1222 void purge_empty_chans(void)
1223 {
1224         int go_again = 1, purge = 0;
1225
1226         while (go_again)
1227         {
1228                 go_again = 0;
1229                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1230                 {
1231                         if (i->second) {
1232                                 if (!usercount(i->second))
1233                                 {
1234                                         /* kill the record */
1235                                         if (i != chanlist.end())
1236                                         {
1237                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1238                                                 if (i->second)
1239                                                         delete i->second;
1240                                                 chanlist.erase(i);
1241                                                 go_again = 1;
1242                                                 purge++;
1243                                                 break;
1244                                         }
1245                                 }
1246                                 else
1247                                 {
1248                                         log(DEBUG,"skipped purge for %s",i->second->name);
1249                                 }
1250                         }
1251                 }
1252         }
1253         log(DEBUG,"completed channel purge, killed %d",purge);
1254 }
1255
1256
1257 char scratch[MAXBUF];
1258 char sparam[MAXBUF];
1259
1260 char* chanmodes(chanrec *chan)
1261 {
1262         if (!chan)
1263         {
1264                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1265                 strcpy(scratch,"");
1266                 return scratch;
1267         }
1268
1269         strcpy(scratch,"");
1270         strcpy(sparam,"");
1271         if (chan->noexternal)
1272         {
1273                 strlcat(scratch,"n",MAXMODES);
1274         }
1275         if (chan->topiclock)
1276         {
1277                 strlcat(scratch,"t",MAXMODES);
1278         }
1279         if (strcmp(chan->key,""))
1280         {
1281                 strlcat(scratch,"k",MAXMODES);
1282         }
1283         if (chan->limit)
1284         {
1285                 strlcat(scratch,"l",MAXMODES);
1286         }
1287         if (chan->inviteonly)
1288         {
1289                 strlcat(scratch,"i",MAXMODES);
1290         }
1291         if (chan->moderated)
1292         {
1293                 strlcat(scratch,"m",MAXMODES);
1294         }
1295         if (chan->secret)
1296         {
1297                 strlcat(scratch,"s",MAXMODES);
1298         }
1299         if (chan->c_private)
1300         {
1301                 strlcat(scratch,"p",MAXMODES);
1302         }
1303         if (strcmp(chan->key,""))
1304         {
1305                 strlcat(sparam," ",MAXBUF);
1306                 strlcat(sparam,chan->key,MAXBUF);
1307         }
1308         if (chan->limit)
1309         {
1310                 char foo[24];
1311                 sprintf(foo," %d",chan->limit);
1312                 strlcat(sparam,foo,MAXBUF);
1313         }
1314         if (strlen(chan->custom_modes))
1315         {
1316                 strlcat(scratch,chan->custom_modes,MAXMODES);
1317                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1318                 {
1319                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1320                         if (extparam != "")
1321                         {
1322                                 strlcat(sparam," ",MAXBUF);
1323                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1324                         }
1325                 }
1326         }
1327         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1328         strlcat(scratch,sparam,MAXMODES);
1329         return scratch;
1330 }
1331
1332
1333 /* compile a userlist of a channel into a string, each nick seperated by
1334  * spaces and op, voice etc status shown as @ and + */
1335
1336 void userlist(userrec *user,chanrec *c)
1337 {
1338         if ((!c) || (!user))
1339         {
1340                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1341                 return;
1342         }
1343
1344         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1345         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1346         {
1347                 if (has_channel(i->second,c))
1348                 {
1349                         if (isnick(i->second->nick))
1350                         {
1351                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1352                                 {
1353                                         /* user is +i, and source not on the channel, does not show
1354                                          * nick in NAMES list */
1355                                         continue;
1356                                 }
1357                                 strlcat(list,cmode(i->second,c),MAXBUF);
1358                                 strlcat(list,i->second->nick,MAXBUF);
1359                                 strlcat(list," ",MAXBUF);
1360                                 if (strlen(list)>(480-NICKMAX))
1361                                 {
1362                                         /* list overflowed into
1363                                          * multiple numerics */
1364                                         WriteServ(user->fd,"%s",list);
1365                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1366                                 }
1367                         }
1368                 }
1369         }
1370         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1371         {
1372                 WriteServ(user->fd,"%s",list);
1373         }
1374 }
1375
1376 /* return a count of the users on a specific channel accounting for
1377  * invisible users who won't increase the count. e.g. for /LIST */
1378
1379 int usercount_i(chanrec *c)
1380 {
1381         int count = 0;
1382
1383         if (!c)
1384         {
1385                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1386                 return 0;
1387         }
1388
1389         strcpy(list,"");
1390         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1391         {
1392                 if (i->second)
1393                 {
1394                         if (has_channel(i->second,c))
1395                         {
1396                                 if (isnick(i->second->nick))
1397                                 {
1398                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1399                                         {
1400                                                 /* user is +i, and source not on the channel, does not show
1401                                                  * nick in NAMES list */
1402                                                 continue;
1403                                         }
1404                                         count++;
1405                                 }
1406                         }
1407                 }
1408         }
1409         log(DEBUG,"usercount_i: %s %d",c->name,count);
1410         return count;
1411 }
1412
1413
1414 int usercount(chanrec *c)
1415 {
1416         int count = 0;
1417
1418         if (!c)
1419         {
1420                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1421                 return 0;
1422         }
1423
1424         strcpy(list,"");
1425         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1426         {
1427                 if (i->second)
1428                 {
1429                         if (has_channel(i->second,c))
1430                         {
1431                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1432                                 {
1433                                         count++;
1434                                 }
1435                         }
1436                 }
1437         }
1438         log(DEBUG,"usercount: %s %d",c->name,count);
1439         return count;
1440 }
1441
1442
1443 /* add a channel to a user, creating the record for it if needed and linking
1444  * it to the user record */
1445
1446 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1447 {
1448         if ((!user) || (!cn))
1449         {
1450                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1451                 return 0;
1452         }
1453
1454         chanrec* Ptr;
1455         int created = 0;
1456         char cname[MAXBUF];
1457
1458         strncpy(cname,cn,MAXBUF);
1459
1460         // we MUST declare this wherever we use FOREACH_RESULT
1461         int MOD_RESULT = 0;
1462
1463         if (strlen(cname) > CHANMAX-1)
1464         {
1465                 cname[CHANMAX-1] = '\0';
1466         }
1467
1468         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1469
1470         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1471         {
1472                 return NULL; // already on the channel!
1473         }
1474
1475
1476         if (!FindChan(cname))
1477         {
1478                 MOD_RESULT = 0;
1479                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1480                 if (MOD_RESULT == 1) {
1481                         return NULL;
1482                 }
1483
1484                 /* create a new one */
1485                 log(DEBUG,"add_channel: creating: %s",cname);
1486                 {
1487                         chanlist[cname] = new chanrec();
1488
1489                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1490                         chanlist[cname]->topiclock = 1;
1491                         chanlist[cname]->noexternal = 1;
1492                         chanlist[cname]->created = TIME;
1493                         strcpy(chanlist[cname]->topic, "");
1494                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1495                         chanlist[cname]->topicset = 0;
1496                         Ptr = chanlist[cname];
1497                         log(DEBUG,"add_channel: created: %s",cname);
1498                         /* set created to 2 to indicate user
1499                          * is the first in the channel
1500                          * and should be given ops */
1501                         created = 2;
1502                 }
1503         }
1504         else
1505         {
1506                 /* channel exists, just fish out a pointer to its struct */
1507                 Ptr = FindChan(cname);
1508                 if (Ptr)
1509                 {
1510                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1511
1512                         // the override flag allows us to bypass channel modes
1513                         // and bans (used by servers)
1514                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1515                         {
1516                                 log(DEBUG,"Not overriding...");
1517                                 MOD_RESULT = 0;
1518                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1519                                 if (MOD_RESULT == 1) {
1520                                         return NULL;
1521                                 }
1522                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1523
1524                                 if (!MOD_RESULT)
1525                                 {
1526                                         log(DEBUG,"add_channel: checking key, invite, etc");
1527                                         MOD_RESULT = 0;
1528                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1529                                         if (MOD_RESULT == 0)
1530                                         {
1531                                                 if (strcmp(Ptr->key,""))
1532                                                 {
1533                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1534                                                         if (!key)
1535                                                         {
1536                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1537                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1538                                                                 return NULL;
1539                                                         }
1540                                                         else
1541                                                         {
1542                                                                 if (strcasecmp(key,Ptr->key))
1543                                                                 {
1544                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1545                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1546                                                                         return NULL;
1547                                                                 }
1548                                                         }
1549                                                 }
1550                                                 log(DEBUG,"add_channel: no key");
1551                                         }
1552                                         MOD_RESULT = 0;
1553                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1554                                         if (MOD_RESULT == 0)
1555                                         {
1556                                                 if (Ptr->inviteonly)
1557                                                 {
1558                                                         log(DEBUG,"add_channel: channel is +i");
1559                                                         if (user->IsInvited(Ptr->name))
1560                                                         {
1561                                                                 /* user was invited to channel */
1562                                                                 /* there may be an optional channel NOTICE here */
1563                                                         }
1564                                                         else
1565                                                         {
1566                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1567                                                                 return NULL;
1568                                                         }
1569                                                 }
1570                                                 log(DEBUG,"add_channel: channel is not +i");
1571                                         }
1572                                         MOD_RESULT = 0;
1573                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1574                                         if (MOD_RESULT == 0)
1575                                         {
1576                                                 if (Ptr->limit)
1577                                                 {
1578                                                         if (usercount(Ptr) >= Ptr->limit)
1579                                                         {
1580                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1581                                                                 return NULL;
1582                                                         }
1583                                                 }
1584                                         }
1585                                         log(DEBUG,"add_channel: about to walk banlist");
1586                                         MOD_RESULT = 0;
1587                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1588                                         if (MOD_RESULT == 0)
1589                                         {
1590                                                 /* check user against the channel banlist */
1591                                                 if (Ptr)
1592                                                 {
1593                                                         if (Ptr->bans.size())
1594                                                         {
1595                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1596                                                                 {
1597                                                                         if (match(user->GetFullHost(),i->data))
1598                                                                         {
1599                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1600                                                                                 return NULL;
1601                                                                         }
1602                                                                 }
1603                                                         }
1604                                                 }
1605                                                 log(DEBUG,"add_channel: bans checked");
1606                                         }
1607
1608                                 }
1609
1610
1611                                 if ((Ptr) && (user))
1612                                 {
1613                                         user->RemoveInvite(Ptr->name);
1614                                 }
1615
1616                                 log(DEBUG,"add_channel: invites removed");
1617
1618                         }
1619                         else
1620                         {
1621                                 log(DEBUG,"Overridden checks");
1622                         }
1623
1624
1625                 }
1626                 created = 1;
1627         }
1628
1629         log(DEBUG,"Passed channel checks");
1630
1631         for (int index =0; index != MAXCHANS; index++)
1632         {
1633                 log(DEBUG,"Check location %d",index);
1634                 if (user->chans[index].channel == NULL)
1635                 {
1636                         log(DEBUG,"Adding into their channel list at location %d",index);
1637
1638                         if (created == 2)
1639                         {
1640                                 /* first user in is given ops */
1641                                 user->chans[index].uc_modes = UCMODE_OP;
1642                         }
1643                         else
1644                         {
1645                                 user->chans[index].uc_modes = 0;
1646                         }
1647                         user->chans[index].channel = Ptr;
1648                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1649
1650                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1651                         {
1652                                 // use the stamdard J token with no privilages.
1653                                 char buffer[MAXBUF];
1654                                 if (created == 2)
1655                                 {
1656                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1657                                 }
1658                                 else
1659                                 {
1660                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1661                                 }
1662                                 NetSendToAll(buffer);
1663                         }
1664
1665                         log(DEBUG,"Sent JOIN to client");
1666
1667                         if (Ptr->topicset)
1668                         {
1669                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1670                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1671                         }
1672                         userlist(user,Ptr);
1673                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1674                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1675                         //WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1676                         FOREACH_MOD OnUserJoin(user,Ptr);
1677                         return Ptr;
1678                 }
1679         }
1680         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1681         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1682         return NULL;
1683 }
1684
1685 /* remove a channel from a users record, and remove the record from memory
1686  * if the channel has become empty */
1687
1688 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1689 {
1690         if ((!user) || (!cname))
1691         {
1692                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1693                 return NULL;
1694         }
1695
1696         chanrec* Ptr;
1697
1698         if ((!cname) || (!user))
1699         {
1700                 return NULL;
1701         }
1702
1703         Ptr = FindChan(cname);
1704
1705         if (!Ptr)
1706         {
1707                 return NULL;
1708         }
1709
1710         FOREACH_MOD OnUserPart(user,Ptr);
1711         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1712
1713         for (int i =0; i != MAXCHANS; i++)
1714         {
1715                 /* zap it from the channel list of the user */
1716                 if (user->chans[i].channel == Ptr)
1717                 {
1718                         if (reason)
1719                         {
1720                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1721
1722                                 if (!local)
1723                                 {
1724                                         char buffer[MAXBUF];
1725                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1726                                         NetSendToAll(buffer);
1727                                 }
1728
1729
1730                         }
1731                         else
1732                         {
1733                                 if (!local)
1734                                 {
1735                                         char buffer[MAXBUF];
1736                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1737                                         NetSendToAll(buffer);
1738                                 }
1739
1740                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1741                         }
1742                         user->chans[i].uc_modes = 0;
1743                         user->chans[i].channel = NULL;
1744                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1745                         break;
1746                 }
1747         }
1748
1749         /* if there are no users left on the channel */
1750         if (!usercount(Ptr))
1751         {
1752                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1753
1754                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1755
1756                 /* kill the record */
1757                 if (iter != chanlist.end())
1758                 {
1759                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1760                         if (iter->second) delete iter->second;
1761                         chanlist.erase(iter);
1762                 }
1763         }
1764 }
1765
1766
1767 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1768 {
1769         if ((!src) || (!user) || (!Ptr) || (!reason))
1770         {
1771                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1772                 return;
1773         }
1774
1775         if ((!Ptr) || (!user) || (!src))
1776         {
1777                 return;
1778         }
1779
1780         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1781
1782         if (!has_channel(user,Ptr))
1783         {
1784                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1785                 return;
1786         }
1787
1788         int MOD_RESULT = 0;
1789         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1790         if (MOD_RESULT == ACR_DENY)
1791                 return;
1792
1793         if (MOD_RESULT == ACR_DEFAULT)
1794         {
1795                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1796                 {
1797                         if (cstatus(src,Ptr) == STATUS_HOP)
1798                         {
1799                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1800                         }
1801                         else
1802                         {
1803                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1804                         }
1805
1806                         return;
1807                 }
1808         }
1809
1810         MOD_RESULT = 0;
1811         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1812         if (MOD_RESULT)
1813                 return;
1814
1815         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1816
1817         for (int i =0; i != MAXCHANS; i++)
1818         {
1819                 /* zap it from the channel list of the user */
1820                 if (user->chans[i].channel)
1821                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1822                 {
1823                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1824                         user->chans[i].uc_modes = 0;
1825                         user->chans[i].channel = NULL;
1826                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1827                         break;
1828                 }
1829         }
1830
1831         /* if there are no users left on the channel */
1832         if (!usercount(Ptr))
1833         {
1834                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1835
1836                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1837
1838                 /* kill the record */
1839                 if (iter != chanlist.end())
1840                 {
1841                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1842                         if (iter->second) delete iter->second;
1843                         chanlist.erase(iter);
1844                 }
1845         }
1846 }
1847
1848
1849
1850
1851 /* This function pokes and hacks at a parameter list like the following:
1852  *
1853  * PART #winbot,#darkgalaxy :m00!
1854  *
1855  * to turn it into a series of individual calls like this:
1856  *
1857  * PART #winbot :m00!
1858  * PART #darkgalaxy :m00!
1859  *
1860  * The seperate calls are sent to a callback function provided by the caller
1861  * (the caller will usually call itself recursively). The callback function
1862  * must be a command handler. Calling this function on a line with no list causes
1863  * no action to be taken. You must provide a starting and ending parameter number
1864  * where the range of the list can be found, useful if you have a terminating
1865  * parameter as above which is actually not part of the list, or parameters
1866  * before the actual list as well. This code is used by many functions which
1867  * can function as "one to list" (see the RFC) */
1868
1869 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1870 {
1871         char plist[MAXBUF];
1872         char *param;
1873         char *pars[32];
1874         char blog[32][MAXBUF];
1875         char blog2[32][MAXBUF];
1876         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
1877         char keystr[MAXBUF];
1878         char moo[MAXBUF];
1879
1880         for (int i = 0; i <32; i++)
1881                 strcpy(blog[i],"");
1882
1883         for (int i = 0; i <32; i++)
1884                 strcpy(blog2[i],"");
1885
1886         strcpy(moo,"");
1887         for (int i = 0; i <10; i++)
1888         {
1889                 if (!parameters[i])
1890                 {
1891                         parameters[i] = moo;
1892                 }
1893         }
1894         if (joins)
1895         {
1896                 if (pcnt > 1) /* we have a key to copy */
1897                 {
1898                         strlcpy(keystr,parameters[1],MAXBUF);
1899                 }
1900         }
1901
1902         if (!parameters[start])
1903         {
1904                 return 0;
1905         }
1906         if (!strchr(parameters[start],','))
1907         {
1908                 return 0;
1909         }
1910         strcpy(plist,"");
1911         for (int i = start; i <= end; i++)
1912         {
1913                 if (parameters[i])
1914                 {
1915                         strlcat(plist,parameters[i],MAXBUF);
1916                 }
1917         }
1918
1919         j = 0;
1920         param = plist;
1921
1922         t = strlen(plist);
1923         for (int i = 0; i < t; i++)
1924         {
1925                 if (plist[i] == ',')
1926                 {
1927                         plist[i] = '\0';
1928                         strlcpy(blog[j++],param,MAXBUF);
1929                         param = plist+i+1;
1930                         if (j>20)
1931                         {
1932                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
1933                                 return 1;
1934                         }
1935                 }
1936         }
1937         strlcpy(blog[j++],param,MAXBUF);
1938         total = j;
1939
1940         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
1941         {
1942                 strcat(keystr,",");
1943         }
1944
1945         if ((joins) && (keystr))
1946         {
1947                 if (strchr(keystr,','))
1948                 {
1949                         j = 0;
1950                         param = keystr;
1951                         t2 = strlen(keystr);
1952                         for (int i = 0; i < t2; i++)
1953                         {
1954                                 if (keystr[i] == ',')
1955                                 {
1956                                         keystr[i] = '\0';
1957                                         strlcpy(blog2[j++],param,MAXBUF);
1958                                         param = keystr+i+1;
1959                                 }
1960                         }
1961                         strlcpy(blog2[j++],param,MAXBUF);
1962                         total2 = j;
1963                 }
1964         }
1965
1966         for (j = 0; j < total; j++)
1967         {
1968                 if (blog[j])
1969                 {
1970                         pars[0] = blog[j];
1971                 }
1972                 for (q = end; q < pcnt-1; q++)
1973                 {
1974                         if (parameters[q+1])
1975                         {
1976                                 pars[q-end+1] = parameters[q+1];
1977                         }
1978                 }
1979                 if ((joins) && (parameters[1]))
1980                 {
1981                         if (pcnt > 1)
1982                         {
1983                                 pars[1] = blog2[j];
1984                         }
1985                         else
1986                         {
1987                                 pars[1] = NULL;
1988                         }
1989                 }
1990                 /* repeatedly call the function with the hacked parameter list */
1991                 if ((joins) && (pcnt > 1))
1992                 {
1993                         if (pars[1])
1994                         {
1995                                 // pars[1] already set up and containing key from blog2[j]
1996                                 fn(pars,2,u);
1997                         }
1998                         else
1999                         {
2000                                 pars[1] = parameters[1];
2001                                 fn(pars,2,u);
2002                         }
2003                 }
2004                 else
2005                 {
2006                         fn(pars,pcnt-(end-start),u);
2007                 }
2008         }
2009
2010         return 1;
2011 }
2012
2013
2014
2015 void kill_link(userrec *user,const char* r)
2016 {
2017         user_hash::iterator iter = clientlist.find(user->nick);
2018
2019         char reason[MAXBUF];
2020
2021         strncpy(reason,r,MAXBUF);
2022
2023         if (strlen(reason)>MAXQUIT)
2024         {
2025                 reason[MAXQUIT-1] = '\0';
2026         }
2027
2028         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2029         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2030         log(DEBUG,"closing fd %d",user->fd);
2031
2032         /* bugfix, cant close() a nonblocking socket (sux!) */
2033         if (user->registered == 7) {
2034                 FOREACH_MOD OnUserQuit(user);
2035                 WriteCommonExcept(user,"QUIT :%s",reason);
2036
2037                 // Q token must go to ALL servers!!!
2038                 char buffer[MAXBUF];
2039                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2040                 NetSendToAll(buffer);
2041         }
2042
2043         FOREACH_MOD OnUserDisconnect(user);
2044
2045         if (user->fd > -1)
2046         {
2047                 shutdown(user->fd,2);
2048                 close(user->fd);
2049         }
2050
2051         if (user->registered == 7) {
2052                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2053                 AddWhoWas(user);
2054         }
2055
2056         if (iter != clientlist.end())
2057         {
2058                 log(DEBUG,"deleting user hash value %d",iter->second);
2059                 if ((iter->second) && (user->registered == 7)) {
2060                         if (iter->second) delete iter->second;
2061                 }
2062                 clientlist.erase(iter);
2063         }
2064
2065         if (user->registered == 7) {
2066                 purge_empty_chans();
2067         }
2068         //user = NULL;
2069 }
2070
2071 void kill_link_silent(userrec *user,const char* r)
2072 {
2073         user_hash::iterator iter = clientlist.find(user->nick);
2074
2075         char reason[MAXBUF];
2076
2077         strncpy(reason,r,MAXBUF);
2078
2079         if (strlen(reason)>MAXQUIT)
2080         {
2081                 reason[MAXQUIT-1] = '\0';
2082         }
2083
2084         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2085         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2086         log(DEBUG,"closing fd %d",user->fd);
2087
2088         /* bugfix, cant close() a nonblocking socket (sux!) */
2089         if (user->registered == 7) {
2090                 FOREACH_MOD OnUserQuit(user);
2091                 WriteCommonExcept(user,"QUIT :%s",reason);
2092
2093                 // Q token must go to ALL servers!!!
2094                 char buffer[MAXBUF];
2095                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2096                 NetSendToAll(buffer);
2097         }
2098
2099         FOREACH_MOD OnUserDisconnect(user);
2100
2101         if (user->fd > -1)
2102         {
2103                 shutdown(user->fd,2);
2104                 close(user->fd);
2105         }
2106
2107         if (iter != clientlist.end())
2108         {
2109                 log(DEBUG,"deleting user hash value %d",iter->second);
2110                 if ((iter->second) && (user->registered == 7)) {
2111                         if (iter->second) delete iter->second;
2112                 }
2113                 clientlist.erase(iter);
2114         }
2115
2116         if (user->registered == 7) {
2117                 purge_empty_chans();
2118         }
2119 }
2120
2121
2122
2123 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2124
2125 char* Passwd(userrec *user)
2126 {
2127         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2128         {
2129                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2130                 {
2131                         return i->pass;
2132                 }
2133         }
2134         return "";
2135 }
2136
2137 bool IsDenied(userrec *user)
2138 {
2139         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2140         {
2141                 if (match(user->host,i->host) && (i->type == CC_DENY))
2142                 {
2143                         return true;
2144                 }
2145         }
2146         return false;
2147 }
2148
2149
2150
2151
2152 /* sends out an error notice to all connected clients (not to be used
2153  * lightly!) */
2154
2155 void send_error(char *s)
2156 {
2157         log(DEBUG,"send_error: %s",s);
2158         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2159         {
2160                 if (isnick(i->second->nick))
2161                 {
2162                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2163                 }
2164                 else
2165                 {
2166                         // fix - unregistered connections receive ERROR, not NOTICE
2167                         Write(i->second->fd,"ERROR :%s",s);
2168                 }
2169         }
2170 }
2171
2172 void Error(int status)
2173 {
2174         signal (SIGALRM, SIG_IGN);
2175         signal (SIGPIPE, SIG_IGN);
2176         signal (SIGTERM, SIG_IGN);
2177         signal (SIGABRT, SIG_IGN);
2178         signal (SIGSEGV, SIG_IGN);
2179         signal (SIGURG, SIG_IGN);
2180         signal (SIGKILL, SIG_IGN);
2181         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2182         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2183         Exit(status);
2184 }
2185
2186
2187 int main(int argc, char **argv)
2188 {
2189         Start();
2190         srand(time(NULL));
2191         log(DEBUG,"*** InspIRCd starting up!");
2192         if (!FileExists(CONFIG_FILE))
2193         {
2194                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2195                 log(DEFAULT,"main: no config");
2196                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2197                 Exit(ERROR);
2198         }
2199         if (argc > 1) {
2200                 for (int i = 1; i < argc; i++)
2201                 {
2202                         if (!strcmp(argv[i],"-nofork")) {
2203                                 nofork = true;
2204                         }
2205                         if (!strcmp(argv[i],"-wait")) {
2206                                 sleep(6);
2207                         }
2208                         if (!strcmp(argv[i],"-nolimit")) {
2209                                 unlimitcore = true;
2210                         }
2211                 }
2212         }
2213         strlcpy(MyExecutable,argv[0],MAXBUF);
2214
2215         if (InspIRCd() == ERROR)
2216         {
2217                 log(DEFAULT,"main: daemon function bailed");
2218                 printf("ERROR: could not initialise. Shutting down.\n");
2219                 Exit(ERROR);
2220         }
2221         Exit(TRUE);
2222         return 0;
2223 }
2224
2225 template<typename T> inline string ConvToStr(const T &in)
2226 {
2227         stringstream tmp;
2228         if (!(tmp << in)) return string();
2229         return tmp.str();
2230 }
2231
2232 /* re-allocates a nick in the user_hash after they change nicknames,
2233  * returns a pointer to the new user as it may have moved */
2234
2235 userrec* ReHashNick(char* Old, char* New)
2236 {
2237         user_hash::iterator newnick;
2238         user_hash::iterator oldnick = clientlist.find(Old);
2239
2240         log(DEBUG,"ReHashNick: %s %s",Old,New);
2241
2242         if (!strcasecmp(Old,New))
2243         {
2244                 log(DEBUG,"old nick is new nick, skipping");
2245                 return oldnick->second;
2246         }
2247
2248         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2249
2250         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2251
2252         clientlist[New] = new userrec();
2253         clientlist[New] = oldnick->second;
2254         clientlist.erase(oldnick);
2255
2256         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2257
2258         return clientlist[New];
2259 }
2260
2261 /* adds or updates an entry in the whowas list */
2262 void AddWhoWas(userrec* u)
2263 {
2264         user_hash::iterator iter = whowas.find(u->nick);
2265         userrec *a = new userrec();
2266         strlcpy(a->nick,u->nick,NICKMAX);
2267         strlcpy(a->ident,u->ident,64);
2268         strlcpy(a->dhost,u->dhost,256);
2269         strlcpy(a->host,u->host,256);
2270         strlcpy(a->fullname,u->fullname,128);
2271         strlcpy(a->server,u->server,256);
2272         a->signon = u->signon;
2273
2274         /* MAX_WHOWAS:   max number of /WHOWAS items
2275          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2276          *               can be replaced by a newer one
2277          */
2278
2279         if (iter == whowas.end())
2280         {
2281                 if (whowas.size() == WHOWAS_MAX)
2282                 {
2283                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2284                         {
2285                                 // 3600 seconds in an hour ;)
2286                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2287                                 {
2288                                         if (i->second) delete i->second;
2289                                         i->second = a;
2290                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2291                                         return;
2292                                 }
2293                         }
2294                 }
2295                 else
2296                 {
2297                         log(DEBUG,"added fresh WHOWAS entry");
2298                         whowas[a->nick] = a;
2299                 }
2300         }
2301         else
2302         {
2303                 log(DEBUG,"updated WHOWAS entry");
2304                 if (iter->second) delete iter->second;
2305                 iter->second = a;
2306         }
2307 }
2308
2309
2310 /* add a client connection to the sockets list */
2311 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2312 {
2313         string tempnick;
2314         char tn2[MAXBUF];
2315         user_hash::iterator iter;
2316
2317         tempnick = ConvToStr(socket) + "-unknown";
2318         sprintf(tn2,"%d-unknown",socket);
2319
2320         iter = clientlist.find(tempnick);
2321
2322         if (iter != clientlist.end()) return;
2323
2324         /*
2325          * It is OK to access the value here this way since we know
2326          * it exists, we just created it above.
2327          *
2328          * At NO other time should you access a value in a map or a
2329          * hash_map this way.
2330          */
2331         clientlist[tempnick] = new userrec();
2332
2333         NonBlocking(socket);
2334         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2335
2336         clientlist[tempnick]->fd = socket;
2337         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2338         strncpy(clientlist[tempnick]->host, host,160);
2339         strncpy(clientlist[tempnick]->dhost, host,160);
2340         strncpy(clientlist[tempnick]->server, ServerName,256);
2341         strncpy(clientlist[tempnick]->ident, "unknown",12);
2342         clientlist[tempnick]->registered = 0;
2343         clientlist[tempnick]->signon = TIME+dns_timeout;
2344         clientlist[tempnick]->lastping = 1;
2345         clientlist[tempnick]->port = port;
2346         strncpy(clientlist[tempnick]->ip,ip,32);
2347
2348         // set the registration timeout for this user
2349         unsigned long class_regtimeout = 90;
2350         int class_flood = 0;
2351
2352         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2353         {
2354                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2355                 {
2356                         class_regtimeout = (unsigned long)i->registration_timeout;
2357                         class_flood = i->flood;
2358                         clientlist[tempnick]->pingmax = i->pingtime;
2359                         break;
2360                 }
2361         }
2362
2363         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2364         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2365         clientlist[tempnick]->flood = class_flood;
2366
2367         for (int i = 0; i < MAXCHANS; i++)
2368         {
2369                 clientlist[tempnick]->chans[i].channel = NULL;
2370                 clientlist[tempnick]->chans[i].uc_modes = 0;
2371         }
2372
2373         if (clientlist.size() == MAXCLIENTS)
2374                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2375
2376
2377         char* e = matches_exception(ip);
2378         if (!e)
2379         {
2380                 char* r = matches_zline(ip);
2381                 if (r)
2382                 {
2383                         char reason[MAXBUF];
2384                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2385                         kill_link(clientlist[tempnick],reason);
2386                 }
2387         }
2388 }
2389
2390 // this function counts all users connected, wether they are registered or NOT.
2391 int usercnt(void)
2392 {
2393         return clientlist.size();
2394 }
2395
2396 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2397 int registered_usercount(void)
2398 {
2399         int c = 0;
2400         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2401         {
2402                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2403         }
2404         return c;
2405 }
2406
2407 int usercount_invisible(void)
2408 {
2409         int c = 0;
2410
2411         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2412         {
2413                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2414         }
2415         return c;
2416 }
2417
2418 int usercount_opers(void)
2419 {
2420         int c = 0;
2421
2422         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2423         {
2424                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2425         }
2426         return c;
2427 }
2428
2429 int usercount_unknown(void)
2430 {
2431         int c = 0;
2432
2433         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2434         {
2435                 if ((i->second->fd) && (i->second->registered != 7))
2436                         c++;
2437         }
2438         return c;
2439 }
2440
2441 long chancount(void)
2442 {
2443         return chanlist.size();
2444 }
2445
2446 long count_servs(void)
2447 {
2448         int c = 0;
2449         for (int i = 0; i < 32; i++)
2450         {
2451                 if (me[i] != NULL)
2452                 {
2453                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2454                         {
2455                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2456                                 {
2457                                         c++;
2458                                 }
2459                         }
2460                 }
2461         }
2462         return c;
2463 }
2464
2465 long servercount(void)
2466 {
2467         return count_servs()+1;
2468 }
2469
2470 long local_count()
2471 {
2472         int c = 0;
2473         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2474         {
2475                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2476         }
2477         return c;
2478 }
2479
2480
2481 void ShowMOTD(userrec *user)
2482 {
2483         std::string WholeMOTD = "";
2484         if (!MOTD.size())
2485         {
2486                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2487                 return;
2488         }
2489         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2490         for (int i = 0; i != MOTD.size(); i++)
2491         {
2492                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2493         }
2494         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2495         // only one write operation
2496         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2497
2498 }
2499
2500 void ShowRULES(userrec *user)
2501 {
2502         if (!RULES.size())
2503         {
2504                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2505                 return;
2506         }
2507         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2508         for (int i = 0; i != RULES.size(); i++)
2509         {
2510                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2511         }
2512         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2513 }
2514
2515 /* shows the message of the day, and any other on-logon stuff */
2516 void FullConnectUser(userrec* user)
2517 {
2518         user->registered = 7;
2519         user->idle_lastmsg = TIME;
2520         log(DEBUG,"ConnectUser: %s",user->nick);
2521
2522         if (strcmp(Passwd(user),"") && (!user->haspassed))
2523         {
2524                 kill_link(user,"Invalid password");
2525                 return;
2526         }
2527         if (IsDenied(user))
2528         {
2529                 kill_link(user,"Unauthorised connection");
2530                 return;
2531         }
2532
2533         char match_against[MAXBUF];
2534         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2535         char* e = matches_exception(match_against);
2536         if (!e)
2537         {
2538                 char* r = matches_gline(match_against);
2539                 if (r)
2540                 {
2541                         char reason[MAXBUF];
2542                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2543                         kill_link_silent(user,reason);
2544                         return;
2545                 }
2546                 r = matches_kline(user->host);
2547                 if (r)
2548                 {
2549                         char reason[MAXBUF];
2550                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2551                         kill_link_silent(user,reason);
2552                         return;
2553                 }
2554         }
2555
2556         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2557         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2558         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2559         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2560         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2561         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2562         std::stringstream v;
2563         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2564         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2565         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2566         v << std::string(Network);
2567         std::string data005 = v.str();
2568         FOREACH_MOD On005Numeric(data005);
2569         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2570         // so i'd better split it :)
2571         std::stringstream out(data005);
2572         std::string token = "";
2573         std::string line5 = "";
2574         int token_counter = 0;
2575         while (!out.eof())
2576         {
2577                 out >> token;
2578                 line5 = line5 + token + " ";
2579                 token_counter++;
2580                 if ((token_counter >= 13) || (out.eof() == true))
2581                 {
2582                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2583                         line5 = "";
2584                         token_counter = 0;
2585                 }
2586         }
2587         ShowMOTD(user);
2588         FOREACH_MOD OnUserConnect(user);
2589         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2590
2591         char buffer[MAXBUF];
2592         snprintf(buffer,MAXBUF,"N %d %s %s %s %s +%s %s %s :%s",user->age,user->nick,user->host,user->dhost,user->ident,user->modes,user->ip,ServerName,user->fullname);
2593         NetSendToAll(buffer);
2594 }
2595
2596
2597 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2598 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2599 // registration timeout maximum seconds)
2600 bool AllModulesReportReady(userrec* user)
2601 {
2602         for (int i = 0; i <= MODCOUNT; i++)
2603         {
2604                 int res = modules[i]->OnCheckReady(user);
2605                         if (!res)
2606                                 return false;
2607         }
2608         return true;
2609 }
2610
2611 /* shows the message of the day, and any other on-logon stuff */
2612 void ConnectUser(userrec *user)
2613 {
2614         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2615         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2616         {
2617                 FullConnectUser(user);
2618         }
2619 }
2620
2621 void handle_version(char **parameters, int pcnt, userrec *user)
2622 {
2623         char Revision[] = "$Revision$";
2624
2625         char *s1 = Revision;
2626         char *savept;
2627         char *v2 = strtok_r(s1," ",&savept);
2628         s1 = savept;
2629         v2 = strtok_r(s1," ",&savept);
2630         s1 = savept;
2631
2632         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2633 }
2634
2635
2636 // calls a handler function for a command
2637
2638 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2639 {
2640                 for (int i = 0; i < cmdlist.size(); i++)
2641                 {
2642                         if (!strcasecmp(cmdlist[i].command,commandname))
2643                         {
2644                                 if (cmdlist[i].handler_function)
2645                                 {
2646                                         if (pcnt>=cmdlist[i].min_params)
2647                                         {
2648                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2649                                                 {
2650                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2651                                                 }
2652                                         }
2653                                 }
2654                         }
2655                 }
2656 }
2657
2658 void DoSplitEveryone()
2659 {
2660         bool go_again = true;
2661         while (go_again)
2662         {
2663                 go_again = false;
2664                 for (int i = 0; i < 32; i++)
2665                 {
2666                         if (me[i] != NULL)
2667                         {
2668                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2669                                 {
2670                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2671                                         {
2672                                                 j->routes.clear();
2673                                                 j->CloseConnection();
2674                                                 me[i]->connectors.erase(j);
2675                                                 go_again = true;
2676                                                 break;
2677                                         }
2678                                 }
2679                         }
2680                 }
2681         }
2682         log(DEBUG,"Removed server. Will remove clients...");
2683         // iterate through the userlist and remove all users on this server.
2684         // because we're dealing with a mesh, we dont have to deal with anything
2685         // "down-route" from this server (nice huh)
2686         go_again = true;
2687         char reason[MAXBUF];
2688         while (go_again)
2689         {
2690                 go_again = false;
2691                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2692                 {
2693                         if (strcasecmp(u->second->server,ServerName))
2694                         {
2695                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2696                                 kill_link(u->second,reason);
2697                                 go_again = true;
2698                                 break;
2699                         }
2700                 }
2701         }
2702 }
2703
2704
2705
2706 char islast(const char* s)
2707 {
2708         char c = '`';
2709         for (int j = 0; j < 32; j++)
2710         {
2711                 if (me[j] != NULL)
2712                 {
2713                         for (int k = 0; k < me[j]->connectors.size(); k++)
2714                         {
2715                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2716                                 {
2717                                         c = '|';
2718                                 }
2719                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2720                                 {
2721                                         c = '`';
2722                                 }
2723                         }
2724                 }
2725         }
2726         return c;
2727 }
2728
2729 long map_count(const char* s)
2730 {
2731         int c = 0;
2732         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2733         {
2734                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2735         }
2736         return c;
2737 }
2738
2739
2740 void force_nickchange(userrec* user,const char* newnick)
2741 {
2742         char nick[MAXBUF];
2743         int MOD_RESULT = 0;
2744
2745         strcpy(nick,"");
2746
2747         FOREACH_RESULT(OnUserPreNick(user,newnick));
2748         if (MOD_RESULT) {
2749                 kill_link(user,"Nickname collision");
2750                 return;
2751         }
2752         if (matches_qline(newnick))
2753         {
2754                 kill_link(user,"Nickname collision");
2755                 return;
2756         }
2757
2758         if (user)
2759         {
2760                 if (newnick)
2761                 {
2762                         strncpy(nick,newnick,MAXBUF);
2763                 }
2764                 if (user->registered == 7)
2765                 {
2766                         char* pars[1];
2767                         pars[0] = nick;
2768                         handle_nick(pars,1,user);
2769                 }
2770         }
2771 }
2772
2773
2774 int process_parameters(char **command_p,char *parameters)
2775 {
2776         int j = 0;
2777         int q = strlen(parameters);
2778         if (!q)
2779         {
2780                 /* no parameters, command_p invalid! */
2781                 return 0;
2782         }
2783         if (parameters[0] == ':')
2784         {
2785                 command_p[0] = parameters+1;
2786                 return 1;
2787         }
2788         if (q)
2789         {
2790                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2791                 {
2792                         /* only one parameter */
2793                         command_p[0] = parameters;
2794                         if (parameters[0] == ':')
2795                         {
2796                                 if (strchr(parameters,' ') != NULL)
2797                                 {
2798                                         command_p[0]++;
2799                                 }
2800                         }
2801                         return 1;
2802                 }
2803         }
2804         command_p[j++] = parameters;
2805         for (int i = 0; i <= q; i++)
2806         {
2807                 if (parameters[i] == ' ')
2808                 {
2809                         command_p[j++] = parameters+i+1;
2810                         parameters[i] = '\0';
2811                         if (command_p[j-1][0] == ':')
2812                         {
2813                                 *command_p[j-1]++; /* remove dodgy ":" */
2814                                 break;
2815                                 /* parameter like this marks end of the sequence */
2816                         }
2817                 }
2818         }
2819         return j; /* returns total number of items in the list */
2820 }
2821
2822 void process_command(userrec *user, char* cmd)
2823 {
2824         char *parameters;
2825         char *command;
2826         char *command_p[127];
2827         char p[MAXBUF], temp[MAXBUF];
2828         int j, items, cmd_found;
2829
2830         for (int i = 0; i < 127; i++)
2831                 command_p[i] = NULL;
2832
2833         if (!user)
2834         {
2835                 return;
2836         }
2837         if (!cmd)
2838         {
2839                 return;
2840         }
2841         if (!strcmp(cmd,""))
2842         {
2843                 return;
2844         }
2845
2846         int total_params = 0;
2847         if (strlen(cmd)>2)
2848         {
2849                 for (int q = 0; q < strlen(cmd)-1; q++)
2850                 {
2851                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2852                         {
2853                                 total_params++;
2854                                 // found a 'trailing', we dont count them after this.
2855                                 break;
2856                         }
2857                         if (cmd[q] == ' ')
2858                                 total_params++;
2859                 }
2860         }
2861
2862         // another phidjit bug...
2863         if (total_params > 126)
2864         {
2865                 *(strchr(cmd,' ')) = '\0';
2866                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2867                 return;
2868         }
2869
2870         strlcpy(temp,cmd,MAXBUF);
2871
2872         std::string tmp = cmd;
2873         for (int i = 0; i <= MODCOUNT; i++)
2874         {
2875                 std::string oldtmp = tmp;
2876                 modules[i]->OnServerRaw(tmp,true,user);
2877                 if (oldtmp != tmp)
2878                 {
2879                         log(DEBUG,"A Module changed the input string!");
2880                         log(DEBUG,"New string: %s",tmp.c_str());
2881                         log(DEBUG,"Old string: %s",oldtmp.c_str());
2882                         break;
2883                 }
2884         }
2885         strlcpy(cmd,tmp.c_str(),MAXBUF);
2886         strlcpy(temp,cmd,MAXBUF);
2887
2888         if (!strchr(cmd,' '))
2889         {
2890                 /* no parameters, lets skip the formalities and not chop up
2891                  * the string */
2892                 log(DEBUG,"About to preprocess command with no params");
2893                 items = 0;
2894                 command_p[0] = NULL;
2895                 parameters = NULL;
2896                 for (int i = 0; i <= strlen(cmd); i++)
2897                 {
2898                         cmd[i] = toupper(cmd[i]);
2899                 }
2900                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
2901                 command = cmd;
2902         }
2903         else
2904         {
2905                 strcpy(cmd,"");
2906                 j = 0;
2907                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
2908                 for (int i = 0; i < strlen(temp); i++)
2909                 {
2910                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
2911                         {
2912                                 cmd[j++] = temp[i];
2913                                 cmd[j] = 0;
2914                         }
2915                 }
2916                 /* split the full string into a command plus parameters */
2917                 parameters = p;
2918                 strcpy(p," ");
2919                 command = cmd;
2920                 if (strchr(cmd,' '))
2921                 {
2922                         for (int i = 0; i <= strlen(cmd); i++)
2923                         {
2924                                 /* capitalise the command ONLY, leave params intact */
2925                                 cmd[i] = toupper(cmd[i]);
2926                                 /* are we nearly there yet?! :P */
2927                                 if (cmd[i] == ' ')
2928                                 {
2929                                         command = cmd;
2930                                         parameters = cmd+i+1;
2931                                         cmd[i] = '\0';
2932                                         break;
2933                                 }
2934                         }
2935                 }
2936                 else
2937                 {
2938                         for (int i = 0; i <= strlen(cmd); i++)
2939                         {
2940                                 cmd[i] = toupper(cmd[i]);
2941                         }
2942                 }
2943
2944         }
2945         cmd_found = 0;
2946
2947         if (strlen(command)>MAXCOMMAND)
2948         {
2949                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
2950                 return;
2951         }
2952
2953         for (int x = 0; x < strlen(command); x++)
2954         {
2955                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
2956                 {
2957                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
2958                         {
2959                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
2960                                 {
2961                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
2962                                         return;
2963                                 }
2964                         }
2965                 }
2966         }
2967
2968         for (int i = 0; i != cmdlist.size(); i++)
2969         {
2970                 if (strcmp(cmdlist[i].command,""))
2971                 {
2972                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
2973                         {
2974                                 log(DEBUG,"Found matching command");
2975
2976                                 if (parameters)
2977                                 {
2978                                         if (strcmp(parameters,""))
2979                                         {
2980                                                 items = process_parameters(command_p,parameters);
2981                                         }
2982                                         else
2983                                         {
2984                                                 items = 0;
2985                                                 command_p[0] = NULL;
2986                                         }
2987                                 }
2988                                 else
2989                                 {
2990                                         items = 0;
2991                                         command_p[0] = NULL;
2992                                 }
2993
2994                                 if (user)
2995                                 {
2996                                         log(DEBUG,"Processing command");
2997
2998                                         /* activity resets the ping pending timer */
2999                                         user->nping = TIME + user->pingmax;
3000                                         if ((items) < cmdlist[i].min_params)
3001                                         {
3002                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3003                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3004                                                 return;
3005                                         }
3006                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3007                                         {
3008                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3009                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3010                                                 cmd_found = 1;
3011                                                 return;
3012                                         }
3013                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3014                                         {
3015                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3016                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3017                                                 cmd_found = 1;
3018                                                 return;
3019                                         }
3020                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3021                                          * deny command! */
3022                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3023                                         {
3024                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3025                                                 {
3026                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3027                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3028                                                         return;
3029                                                 }
3030                                         }
3031                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3032                                         {
3033                                                 char* mycmd;
3034                                                 char* savept2;
3035                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3036                                                 while (mycmd)
3037                                                 {
3038                                                         if (!strcasecmp(mycmd,command))
3039                                                         {
3040                                                                 // command is disabled!
3041                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3042                                                                 return;
3043                                                         }
3044                                                         mycmd = strtok_r(NULL," ",&savept2);
3045                                                 }
3046
3047
3048                                         }
3049                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3050                                         {
3051                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3052                                                 if (cmdlist[i].handler_function)
3053                                                 {
3054
3055                                                         /* ikky /stats counters */
3056                                                         if (temp)
3057                                                         {
3058                                                                 if (user)
3059                                                                 {
3060                                                                         user->bytes_in += strlen(temp);
3061                                                                         user->cmds_in++;
3062                                                                         user->bytes_out+=strlen(temp);
3063                                                                         user->cmds_out++;
3064                                                                 }
3065                                                                 cmdlist[i].use_count++;
3066                                                                 cmdlist[i].total_bytes+=strlen(temp);
3067                                                         }
3068
3069                                                         int MOD_RESULT = 0;
3070                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3071                                                         if (MOD_RESULT == 1) {
3072                                                                 return;
3073                                                         }
3074
3075                                                         /* WARNING: nothing may come after the
3076                                                          * command handler call, as the handler
3077                                                          * may free the user structure! */
3078
3079                                                         cmdlist[i].handler_function(command_p,items,user);
3080                                                 }
3081                                                 return;
3082                                         }
3083                                         else
3084                                         {
3085                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3086                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3087                                                 return;
3088                                         }
3089                                 }
3090                                 cmd_found = 1;
3091                         }
3092                 }
3093         }
3094         if ((!cmd_found) && (user))
3095         {
3096                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3097                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3098         }
3099 }
3100
3101
3102 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3103 {
3104         command_t comm;
3105         /* create the command and push it onto the table */
3106         strlcpy(comm.command,cmd,MAXBUF);
3107         strlcpy(comm.source,source,MAXBUF);
3108         comm.handler_function = f;
3109         comm.flags_needed = flags;
3110         comm.min_params = minparams;
3111         comm.use_count = 0;
3112         comm.total_bytes = 0;
3113         cmdlist.push_back(comm);
3114         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3115 }
3116
3117 bool removecommands(const char* source)
3118 {
3119         bool go_again = true;
3120         while (go_again)
3121         {
3122                 go_again = false;
3123                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3124                 {
3125                         if (!strcmp(i->source,source))
3126                         {
3127                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3128                                 cmdlist.erase(i);
3129                                 go_again = true;
3130                                 break;
3131                         }
3132                 }
3133         }
3134         return true;
3135 }
3136
3137 void SetupCommandTable(void)
3138 {
3139         createcommand("USER",handle_user,0,4,"<core>");
3140         createcommand("NICK",handle_nick,0,1,"<core>");
3141         createcommand("QUIT",handle_quit,0,0,"<core>");
3142         createcommand("VERSION",handle_version,0,0,"<core>");
3143         createcommand("PING",handle_ping,0,1,"<core>");
3144         createcommand("PONG",handle_pong,0,1,"<core>");
3145         createcommand("ADMIN",handle_admin,0,0,"<core>");
3146         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3147         createcommand("INFO",handle_info,0,0,"<core>");
3148         createcommand("TIME",handle_time,0,0,"<core>");
3149         createcommand("WHOIS",handle_whois,0,1,"<core>");
3150         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3151         createcommand("NOTICE",handle_notice,0,2,"<core>");
3152         createcommand("JOIN",handle_join,0,1,"<core>");
3153         createcommand("NAMES",handle_names,0,0,"<core>");
3154         createcommand("PART",handle_part,0,1,"<core>");
3155         createcommand("KICK",handle_kick,0,2,"<core>");
3156         createcommand("MODE",handle_mode,0,1,"<core>");
3157         createcommand("TOPIC",handle_topic,0,1,"<core>");
3158         createcommand("WHO",handle_who,0,1,"<core>");
3159         createcommand("MOTD",handle_motd,0,0,"<core>");
3160         createcommand("RULES",handle_rules,0,0,"<core>");
3161         createcommand("OPER",handle_oper,0,2,"<core>");
3162         createcommand("LIST",handle_list,0,0,"<core>");
3163         createcommand("DIE",handle_die,'o',1,"<core>");
3164         createcommand("RESTART",handle_restart,'o',1,"<core>");
3165         createcommand("KILL",handle_kill,'o',2,"<core>");
3166         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3167         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3168         createcommand("STATS",handle_stats,0,1,"<core>");
3169         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3170         createcommand("AWAY",handle_away,0,0,"<core>");
3171         createcommand("ISON",handle_ison,0,0,"<core>");
3172         createcommand("SUMMON",handle_summon,0,0,"<core>");
3173         createcommand("USERS",handle_users,0,0,"<core>");
3174         createcommand("INVITE",handle_invite,0,2,"<core>");
3175         createcommand("PASS",handle_pass,0,1,"<core>");
3176         createcommand("TRACE",handle_trace,'o',0,"<core>");
3177         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3178         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3179         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3180         createcommand("MODULES",handle_modules,0,0,"<core>");
3181         createcommand("LINKS",handle_links,0,0,"<core>");
3182         createcommand("MAP",handle_map,0,0,"<core>");
3183         createcommand("KLINE",handle_kline,'o',1,"<core>");
3184         createcommand("GLINE",handle_gline,'o',1,"<core>");
3185         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3186         createcommand("QLINE",handle_qline,'o',1,"<core>");
3187         createcommand("ELINE",handle_eline,'o',1,"<core>");
3188         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3189         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3190         createcommand("SERVER",handle_server,0,0,"<core>");
3191 }
3192
3193 void process_buffer(const char* cmdbuf,userrec *user)
3194 {
3195         if (!user)
3196         {
3197                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3198                 return;
3199         }
3200         char cmd[MAXBUF];
3201         if (!cmdbuf)
3202         {
3203                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3204                 return;
3205         }
3206         if (!strcmp(cmdbuf,""))
3207         {
3208                 return;
3209         }
3210         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3211
3212         strlcpy(cmd,cmdbuf,MAXBUF);
3213         if (!strcmp(cmd,""))
3214         {
3215                 return;
3216         }
3217         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3218         {
3219                 cmd[strlen(cmd)-1] = '\0';
3220         }
3221         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3222         {
3223                 cmd[strlen(cmd)-1] = '\0';
3224         }
3225
3226         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3227         {
3228                 cmd[strlen(cmd)-1] = '\0';
3229         }
3230
3231         if (!strcmp(cmd,""))
3232         {
3233                 return;
3234         }
3235         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3236         tidystring(cmd);
3237         if ((user) && (cmd))
3238         {
3239                 process_command(user,cmd);
3240         }
3241 }
3242
3243 void DoSync(serverrec* serv, char* tcp_host)
3244 {
3245         char data[MAXBUF];
3246         log(DEBUG,"Sending sync");
3247         // send start of sync marker: Y <timestamp>
3248         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3249         // except the ones its receiving it from.
3250         snprintf(data,MAXBUF,"Y %d",TIME);
3251         serv->SendPacket(data,tcp_host);
3252         // send users and channels
3253         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3254         {
3255                 snprintf(data,MAXBUF,"N %d %s %s %s %s +%s %s %s :%s",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);
3256                 serv->SendPacket(data,tcp_host);
3257                 if (strchr(u->second->modes,'o'))
3258                 {
3259                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3260                         serv->SendPacket(data,tcp_host);
3261                 }
3262                 for (int i = 0; i <= MODCOUNT; i++)
3263                 {
3264                         string_list l = modules[i]->OnUserSync(u->second);
3265                         for (int j = 0; j < l.size(); j++)
3266                         {
3267                                 strlcpy(data,l[j].c_str(),MAXBUF);
3268                                 serv->SendPacket(data,tcp_host);
3269                         }
3270                 }
3271                 if (strcmp(chlist(u->second),""))
3272                 {
3273                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3274                         serv->SendPacket(data,tcp_host);
3275                 }
3276         }
3277         // send channel modes, topics etc...
3278         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3279         {
3280                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3281                 serv->SendPacket(data,tcp_host);
3282                 for (int i = 0; i <= MODCOUNT; i++)
3283                 {
3284                         string_list l = modules[i]->OnChannelSync(c->second);
3285                         for (int j = 0; j < l.size(); j++)
3286                         {
3287                                 strlcpy(data,l[j].c_str(),MAXBUF);
3288                                 serv->SendPacket(data,tcp_host);
3289                         }
3290                 }
3291                 if (strcmp(c->second->topic,""))
3292                 {
3293                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3294                         serv->SendPacket(data,tcp_host);
3295                 }
3296                 // send current banlist
3297
3298                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3299                 {
3300                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3301                         serv->SendPacket(data,tcp_host);
3302                 }
3303         }
3304         // sync global zlines, glines, etc
3305         sync_xlines(serv,tcp_host);
3306
3307         for (int j = 0; j < 32; j++)
3308         {
3309                 if (me[j] != NULL)
3310                 {
3311                         for (int k = 0; k < me[j]->connectors.size(); k++)
3312                         {
3313                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3314                                 {
3315                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3316                                         serv->SendPacket(data,tcp_host);
3317                                         NetSendMyRoutingTable();
3318                                 }
3319                         }
3320                 }
3321         }
3322
3323         snprintf(data,MAXBUF,"F %d",TIME);
3324         serv->SendPacket(data,tcp_host);
3325         log(DEBUG,"Sent sync");
3326         // ircd sends its serverlist after the end of sync here
3327 }
3328
3329
3330 void NetSendMyRoutingTable()
3331 {
3332         // send out a line saying what is reachable to us.
3333         // E.g. if A is linked to B C and D, send out:
3334         // $ A B C D
3335         // if its only linked to B and D send out:
3336         // $ A B D
3337         // if it has no links, dont even send out the line at all.
3338         char buffer[MAXBUF];
3339         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3340         bool sendit = false;
3341         for (int i = 0; i < 32; i++)
3342         {
3343                 if (me[i] != NULL)
3344                 {
3345                         for (int j = 0; j < me[i]->connectors.size(); j++)
3346                         {
3347                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3348                                 {
3349                                         strlcat(buffer," ",MAXBUF);
3350                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3351                                         sendit = true;
3352                                 }
3353                         }
3354                 }
3355         }
3356         if (sendit)
3357                 NetSendToAll(buffer);
3358 }
3359
3360
3361 void DoSplit(const char* params)
3362 {
3363         bool go_again = true;
3364         while (go_again)
3365         {
3366                 go_again = false;
3367                 for (int i = 0; i < 32; i++)
3368                 {
3369                         if (me[i] != NULL)
3370                         {
3371                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3372                                 {
3373                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3374                                         {
3375                                                 j->routes.clear();
3376                                                 j->CloseConnection();
3377                                                 me[i]->connectors.erase(j);
3378                                                 go_again = true;
3379                                                 break;
3380                                         }
3381                                 }
3382                         }
3383                 }
3384         }
3385         log(DEBUG,"Removed server. Will remove clients...");
3386         // iterate through the userlist and remove all users on this server.
3387         // because we're dealing with a mesh, we dont have to deal with anything
3388         // "down-route" from this server (nice huh)
3389         go_again = true;
3390         char reason[MAXBUF];
3391         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3392         while (go_again)
3393         {
3394                 go_again = false;
3395                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3396                 {
3397                         if (!strcasecmp(u->second->server,params))
3398                         {
3399                                 kill_link(u->second,reason);
3400                                 go_again = true;
3401                                 break;
3402                         }
3403                 }
3404         }
3405 }
3406
3407 // removes a server. Will NOT remove its users!
3408
3409 void RemoveServer(const char* name)
3410 {
3411         bool go_again = true;
3412         while (go_again)
3413         {
3414                 go_again = false;
3415                 for (int i = 0; i < 32; i++)
3416                 {
3417                         if (me[i] != NULL)
3418                         {
3419                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3420                                 {
3421                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3422                                         {
3423                                                 j->routes.clear();
3424                                                 j->CloseConnection();
3425                                                 me[i]->connectors.erase(j);
3426                                                 go_again = true;
3427                                                 break;
3428                                         }
3429                                 }
3430                         }
3431                 }
3432         }
3433 }
3434
3435
3436 char MODERR[MAXBUF];
3437
3438 char* ModuleError()
3439 {
3440         return MODERR;
3441 }
3442
3443 void erase_factory(int j)
3444 {
3445         int v = 0;
3446         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3447         {
3448                 if (v == j)
3449                 {
3450                         factory.erase(t);
3451                         factory.push_back(NULL);
3452                         return;
3453                 }
3454                 v++;
3455         }
3456 }
3457
3458 void erase_module(int j)
3459 {
3460         int v1 = 0;
3461         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3462         {
3463                 if (v1 == j)
3464                 {
3465                         delete *m;
3466                         modules.erase(m);
3467                         modules.push_back(NULL);
3468                         break;
3469                 }
3470                 v1++;
3471         }
3472         int v2 = 0;
3473         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3474         {
3475                 if (v2 == j)
3476                 {
3477                        module_names.erase(v);
3478                        break;
3479                 }
3480                 v2++;
3481         }
3482
3483 }
3484
3485 bool UnloadModule(const char* filename)
3486 {
3487         for (int j = 0; j != module_names.size(); j++)
3488         {
3489                 if (module_names[j] == std::string(filename))
3490                 {
3491                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3492                         {
3493                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3494                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3495                                 return false;
3496                         }
3497                         // found the module
3498                         log(DEBUG,"Deleting module...");
3499                         erase_module(j);
3500                         log(DEBUG,"Erasing module entry...");
3501                         erase_factory(j);
3502                         log(DEBUG,"Removing dependent commands...");
3503                         removecommands(filename);
3504                         log(DEFAULT,"Module %s unloaded",filename);
3505                         MODCOUNT--;
3506                         return true;
3507                 }
3508         }
3509         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3510         snprintf(MODERR,MAXBUF,"Module not loaded");
3511         return false;
3512 }
3513
3514 bool DirValid(char* dirandfile)
3515 {
3516         char work[MAXBUF];
3517         strlcpy(work,dirandfile,MAXBUF);
3518         int p = strlen(work);
3519         // we just want the dir
3520         while (strlen(work))
3521         {
3522                 if (work[p] == '/')
3523                 {
3524                         work[p] = '\0';
3525                         break;
3526                 }
3527                 work[p--] = '\0';
3528         }
3529         log(DEBUG,"Dir valid: %s",work);
3530         char buffer[MAXBUF], otherdir[MAXBUF];
3531         // Get the current working directory
3532         if( getcwd( buffer, MAXBUF ) == NULL )
3533                 return false;
3534         chdir(work);
3535         if( getcwd( otherdir, MAXBUF ) == NULL )
3536                 return false;
3537         chdir(buffer);
3538         log(DEBUG,"Dir is really: %s",otherdir);
3539         if (strlen(otherdir) >= strlen(work))
3540         {
3541                 otherdir[strlen(work)] = '\0';
3542                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3543                 if (!strcmp(otherdir,work))
3544                 {
3545                         log(DEBUG,"Match ok");
3546                         return true;
3547                 }
3548                 log(DEBUG,"No match");
3549                 return false;
3550         }
3551         else return false;
3552 }
3553
3554 bool LoadModule(const char* filename)
3555 {
3556         char modfile[MAXBUF];
3557         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3558         if (!DirValid(modfile))
3559         {
3560                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3561                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3562                 return false;
3563         }
3564         log(DEBUG,"Loading module: %s",modfile);
3565         if (FileExists(modfile))
3566         {
3567                 for (int j = 0; j < module_names.size(); j++)
3568                 {
3569                         if (module_names[j] == std::string(filename))
3570                         {
3571                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3572                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3573                                 return false;
3574                         }
3575                 }
3576                 ircd_module* a = new ircd_module(modfile);
3577                 factory[MODCOUNT+1] = a;
3578                 if (factory[MODCOUNT+1]->LastError())
3579                 {
3580                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3581                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3582                         MODCOUNT--;
3583                         return false;
3584                 }
3585                 if (factory[MODCOUNT+1]->factory)
3586                 {
3587                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3588                         modules[MODCOUNT+1] = m;
3589                         /* save the module and the module's classfactory, if
3590                          * this isnt done, random crashes can occur :/ */
3591                         module_names.push_back(filename);
3592                 }
3593                 else
3594                 {
3595                         log(DEFAULT,"Unable to load %s",modfile);
3596                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3597                         return false;
3598                 }
3599         }
3600         else
3601         {
3602                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3603                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3604                 return false;
3605         }
3606         MODCOUNT++;
3607         return true;
3608 }
3609
3610 int InspIRCd(void)
3611 {
3612         struct sockaddr_in client,server;
3613         char addrs[MAXBUF][255];
3614         int incomingSockfd, result = TRUE;
3615         socklen_t length;
3616         int count = 0;
3617         int selectResult = 0, selectResult2 = 0;
3618         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3619         fd_set selectFds;
3620         timeval tv;
3621
3622         log_file = fopen("ircd.log","a+");
3623         if (!log_file)
3624         {
3625                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3626                 Exit(ERROR);
3627         }
3628
3629         log(DEBUG,"InspIRCd: startup: begin");
3630         log(DEBUG,"$Id$");
3631         if (geteuid() == 0)
3632         {
3633                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3634                 Exit(ERROR);
3635                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3636         }
3637         SetupCommandTable();
3638         log(DEBUG,"InspIRCd: startup: default command table set up");
3639
3640         ReadConfig(true,NULL);
3641         if (strcmp(DieValue,""))
3642         {
3643                 printf("WARNING: %s\n\n",DieValue);
3644                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3645                 exit(0);
3646         }
3647         log(DEBUG,"InspIRCd: startup: read config");
3648
3649         int clientportcount = 0, serverportcount = 0;
3650
3651         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3652         {
3653                 ConfValue("bind","port",count,configToken,&config_f);
3654                 ConfValue("bind","address",count,Addr,&config_f);
3655                 ConfValue("bind","type",count,Type,&config_f);
3656                 if (!strcmp(Type,"servers"))
3657                 {
3658                         char Default[MAXBUF];
3659                         strcpy(Default,"no");
3660                         ConfValue("bind","default",count,Default,&config_f);
3661                         if (strchr(Default,'y'))
3662                         {
3663                                 defaultRoute = serverportcount;
3664                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3665                         }
3666                         me[serverportcount] = new serverrec(ServerName,100L,false);
3667                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
3668                         {
3669                                 log(DEFAULT,"Warning: Failed to bind port %d",atoi(configToken));
3670                                 printf("Warning: Failed to bind port %d\n",atoi(configToken));
3671                         }
3672                         else
3673                         {
3674                                 serverportcount++;
3675                         }
3676                 }
3677                 else
3678                 {
3679                         ports[clientportcount] = atoi(configToken);
3680                         strlcpy(addrs[clientportcount],Addr,256);
3681                         clientportcount++;
3682                 }
3683                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3684         }
3685         portCount = clientportcount;
3686         UDPportCount = serverportcount;
3687
3688         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3689         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3690
3691         printf("\n");
3692
3693         /* BugFix By Craig! :p */
3694         MODCOUNT = -1;
3695         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
3696         {
3697                 ConfValue("module","name",count,configToken,&config_f);
3698                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3699                 if (!LoadModule(configToken))
3700                 {
3701                         log(DEBUG,"Exiting due to a module loader error.");
3702                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3703                         Exit(0);
3704                 }
3705         }
3706         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3707
3708         startup_time = time(NULL);
3709
3710         char PID[MAXBUF];
3711         ConfValue("pid","file",0,PID,&config_f);
3712         // write once here, to try it out and make sure its ok
3713         WritePID(PID);
3714
3715         /* setup select call */
3716         FD_ZERO(&selectFds);
3717         log(DEBUG,"InspIRCd: startup: zero selects");
3718         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3719
3720         for (count = 0; count < portCount; count++)
3721         {
3722                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3723                 {
3724                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3725                         return(ERROR);
3726                 }
3727                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3728                 {
3729                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3730                 }
3731                 else    /* well we at least bound to one socket so we'll continue */
3732                 {
3733                         boundPortCount++;
3734                 }
3735         }
3736
3737         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3738
3739         /* if we didn't bind to anything then abort */
3740         if (boundPortCount == 0)
3741         {
3742                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3743                 printf("\nERROR: Was not able to bind any of %d ports! Please check your configuration.\n\n", portCount);
3744                 return (ERROR);
3745         }
3746
3747
3748         printf("\nInspIRCd is now running!\n");
3749
3750         if (nofork)
3751         {
3752                 log(VERBOSE,"Not forking as -nofork was specified");
3753         }
3754         else
3755         {
3756                 if (DaemonSeed() == ERROR)
3757                 {
3758                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3759                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3760                         Exit(ERROR);
3761                 }
3762         }
3763
3764         WritePID(PID);
3765
3766         length = sizeof (client);
3767         char udp_msg[MAXBUF],tcp_host[MAXBUF];
3768
3769         fd_set serverfds;
3770         timeval tvs;
3771         tvs.tv_usec = 7000L;
3772         tvs.tv_sec = 0;
3773         tv.tv_sec = 0;
3774         tv.tv_usec = 7000L;
3775         char data[10240];
3776         timeval tval;
3777         fd_set sfd;
3778         tval.tv_usec = 7000L;
3779         tval.tv_sec = 0;
3780         int total_in_this_set = 0;
3781         int v = 0;
3782         bool expire_run = false;
3783
3784         /* main loop, this never returns */
3785         for (;;)
3786         {
3787 #ifdef _POSIX_PRIORITY_SCHEDULING
3788                 sched_yield();
3789 #endif
3790                 // poll dns queue
3791                 dns_poll();
3792                 FD_ZERO(&sfd);
3793
3794                 // we only read time() once per iteration rather than tons of times!
3795                 TIME = time(NULL);
3796
3797                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3798                 // them in a list, then reap the list every second or so.
3799                 if (((TIME % 5) == 0) && (!expire_run))
3800                 {
3801                         expire_lines();
3802                         FOREACH_MOD OnBackgroundTimer(TIME);
3803                         expire_run = true;
3804                         continue;
3805                 }
3806                 if ((TIME % 5) == 1)
3807                         expire_run = false;
3808
3809                 // fix by brain - this must be below any manipulation of the hashmap by modules
3810                 user_hash::iterator count2 = clientlist.begin();
3811
3812                 FD_ZERO(&serverfds);
3813
3814                 for (int x = 0; x != UDPportCount; x++)
3815                 {
3816                         if (me[x])
3817                                 FD_SET(me[x]->fd, &serverfds);
3818                 }
3819
3820                 // serverFds timevals went here
3821
3822                 tvs.tv_usec = 7000L;
3823                 tvs.tv_sec = 0;
3824                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3825                 if (servresult > 0)
3826                 {
3827                         for (int x = 0; x != UDPportCount; x++)
3828                         {
3829                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3830                                 {
3831                                         char remotehost[MAXBUF],resolved[MAXBUF];
3832                                         length = sizeof (client);
3833                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3834                                         if (incomingSockfd != -1)
3835                                         {
3836                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3837                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3838                                                 {
3839                                                         strlcpy(resolved,remotehost,MAXBUF);
3840                                                 }
3841                                                 // add to this connections ircd_connector vector
3842                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3843                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3844                                         }
3845                                 }
3846                         }
3847                 }
3848
3849                 for (int cycle = 0; cycle < 4; cycle++) for (int x = 0; x < UDPportCount; x++)
3850                 {
3851                         std::deque<std::string> msgs;
3852                         msgs.clear();
3853                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3854                         {
3855                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3856                                 {
3857                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3858                                         log(DEBUG,"Processing: %s",udp_msg);
3859                                         if (strlen(udp_msg)<1)
3860                                         {
3861                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3862                                                 break;
3863                                         }
3864                                         // during a netburst, send all data to all other linked servers
3865                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3866                                         {
3867                                                 if (is_uline(tcp_host))
3868                                                 {
3869                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3870                                                         {
3871                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3872                                                         }
3873                                                 }
3874                                                 else
3875                                                         NetSendToAllExcept(tcp_host,udp_msg);
3876                                         }
3877                                         std::string msg = udp_msg;
3878                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
3879                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
3880                                         handle_link_packet(udp_msg, tcp_host, me[x]);
3881                                 }
3882                                 goto label;
3883                         }
3884                 }
3885
3886
3887         while (count2 != clientlist.end())
3888         {
3889                 FD_ZERO(&sfd);
3890                 total_in_this_set = 0;
3891
3892                 user_hash::iterator xcount = count2;
3893                 user_hash::iterator endingiter = count2;
3894
3895                 if (count2 == clientlist.end()) break;
3896
3897                 if (count2->second)
3898                 if (count2->second->fd != 0)
3899                 {
3900                         // assemble up to 64 sockets into an fd_set
3901                         // to implement a pooling mechanism.
3902                         //
3903                         // This should be up to 64x faster than the
3904                         // old implementation.
3905                         while (total_in_this_set < 64)
3906                         {
3907                                 if (count2 != clientlist.end())
3908                                 {
3909                                         // we don't check the state of remote users.
3910                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
3911                                         {
3912                                                 FD_SET (count2->second->fd, &sfd);
3913
3914                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
3915                                                 // their connection class.
3916                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
3917                                                 {
3918                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
3919                                                         kill_link(count2->second,"Registration timeout");
3920                                                         goto label;
3921                                                 }
3922                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
3923                                                 {
3924                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
3925                                                         count2->second->dns_done = true;
3926                                                         FullConnectUser(count2->second);
3927                                                         goto label;
3928                                                 }
3929                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
3930                                                 {
3931                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
3932                                                         FullConnectUser(count2->second);
3933                                                         goto label;
3934                                                 }
3935                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
3936                                                 {
3937                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
3938                                                         {
3939                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
3940                                                                 kill_link(count2->second,"Ping timeout");
3941                                                                 goto label;
3942                                                         }
3943                                                         Write(count2->second->fd,"PING :%s",ServerName);
3944                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
3945                                                         count2->second->lastping = 0;
3946                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
3947                                                 }
3948                                         }
3949                                         count2++;
3950                                         total_in_this_set++;
3951                                 }
3952                                 else break;
3953                         }
3954
3955                         endingiter = count2;
3956                         count2 = xcount; // roll back to where we were
3957
3958                         v = 0;
3959
3960                         // tvals defined here
3961
3962                         tval.tv_usec = 7000L;
3963                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
3964
3965                         // now loop through all of the items in this pool if any are waiting
3966                         //if (selectResult2 > 0)
3967                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
3968                         {
3969
3970 #ifdef _POSIX_PRIORITY_SCHEDULING
3971                                 sched_yield();
3972 #endif
3973
3974                                 result = EAGAIN;
3975                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
3976                                 {
3977                                         memset(data, 0, 10240);
3978                                         result = read(count2a->second->fd, data, 10240);
3979
3980                                         if (result)
3981                                         {
3982                                                 // perform a check on the raw buffer as an array (not a string!) to remove
3983                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
3984                                                 // hopefully this should stop even more people whining about "Unknown command: *"
3985                                                 for (int checker = 0; checker < result; checker++)
3986                                                 {
3987                                                         if ((data[checker] == 0) || (data[checker] == 7))
3988                                                                 data[checker] = ' ';
3989                                                 }
3990                                                 userrec* current = count2a->second;
3991                                                 int currfd = current->fd;
3992                                                 char* l = strtok(data,"\n");
3993                                                 int floodlines = 0;
3994                                                 while (l)
3995                                                 {
3996                                                         floodlines++;
3997                                                         if ((floodlines > current->flood) && (current->flood != 0))
3998                                                         {
3999                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4000                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4001                                                                 kill_link(current,"Excess flood");
4002                                                                 goto label;
4003                                                         }
4004                                                         char sanitized[NetBufferSize];
4005                                                         memset(sanitized, 0, NetBufferSize);
4006                                                         int ptt = 0;
4007                                                         for (int pt = 0; pt < strlen(l); pt++)
4008                                                         {
4009                                                                 if (l[pt] != '\r')
4010                                                                 {
4011                                                                         sanitized[ptt++] = l[pt];
4012                                                                 }
4013                                                         }
4014                                                         sanitized[ptt] = '\0';
4015                                                         if (strlen(sanitized))
4016                                                         {
4017
4018
4019                                                                 // we're gonna re-scan to check if the nick is gone, after every
4020                                                                 // command - if it has, we're gonna bail
4021                                                                 bool find_again = false;
4022                                                                 process_buffer(sanitized,current);
4023
4024                                                                 // look for the user's record in case it's changed
4025                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4026                                                                 {
4027                                                                         if (c2->second->fd == currfd)
4028                                                                         {
4029                                                                                 // found again, update pointer
4030                                                                                 current == c2->second;
4031                                                                                 find_again = true;
4032                                                                                 break;
4033                                                                         }
4034                                                                 }
4035                                                                 if (!find_again)
4036                                                                         goto label;
4037
4038                                                         }
4039                                                         l = strtok(NULL,"\n");
4040                                                 }
4041                                                 goto label;
4042                                         }
4043
4044                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4045                                         {
4046                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4047                                                 kill_link(count2a->second,strerror(errno));
4048                                                 goto label;
4049                                         }
4050                                 }
4051                                 // result EAGAIN means nothing read
4052                                 if (result == EAGAIN)
4053                                 {
4054                                 }
4055                                 else
4056                                 if (result == 0)
4057                                 {
4058                                         if (count2->second)
4059                                         {
4060                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4061                                                 kill_link(count2a->second,"Client exited");
4062                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4063                                                 log(DEBUG,"Bailing from client exit");
4064                                                 goto label;
4065                                         }
4066                                 }
4067                                 else if (result > 0)
4068                                 {
4069                                 }
4070                         }
4071                 }
4072                 for (int q = 0; q < total_in_this_set; q++)
4073                 {
4074                         // there is no iterator += operator :(
4075                         //if (count2 != clientlist.end())
4076                         //{
4077                                 count2++;
4078                         //}
4079                 }
4080         }
4081
4082         // set up select call
4083         for (count = 0; count < boundPortCount; count++)
4084         {
4085                 FD_SET (openSockfd[count], &selectFds);
4086         }
4087
4088         tv.tv_usec = 7000L;
4089         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4090
4091         /* select is reporting a waiting socket. Poll them all to find out which */
4092         if (selectResult > 0)
4093         {
4094                 char target[MAXBUF], resolved[MAXBUF];
4095                 for (count = 0; count < boundPortCount; count++)
4096                 {
4097                         if (FD_ISSET (openSockfd[count], &selectFds))
4098                         {
4099                                 length = sizeof (client);
4100                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4101
4102                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4103                                 strlcpy (resolved, target, MAXBUF);
4104
4105                                 if (incomingSockfd < 0)
4106                                 {
4107                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4108                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4109                                 }
4110                                 else
4111                                 {
4112                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4113                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4114                                 }
4115                                 goto label;
4116                         }
4117                 }
4118         }
4119         label:
4120         if (0) {};
4121 }
4122 /* not reached */
4123 close (incomingSockfd);
4124 }
4125