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 std::vector<int> fd_reap;
 102
 103 extern int MODCOUNT;
 104 int openSockfd[MAXSOCKS];
 105 bool nofork = false;
 106 bool unlimitcore = false;
 107
 108 time_t TIME = time(NULL);
 109
 110 namespace nspace
 111 {
 112 #ifdef GCC34
 113         template<> struct hash<in_addr>
 114 #else
 115         template<> struct nspace::hash<in_addr>
 116 #endif
 117         {
 118                 size_t operator()(const struct in_addr &a) const
 119                 {
 120                         size_t q;
 121                         memcpy(&q,&a,sizeof(size_t));
 122                         return q;
 123                 }
 124         };
 125 #ifdef GCC34
 126         template<> struct hash<string>
 127 #else
 128         template<> struct nspace::hash<string>
 129 #endif
 130         {
 131                 size_t operator()(const string &s) const
 132                 {
 133                         char a[MAXBUF];
 134                         static struct hash<const char *> strhash;
 135                         strlcpy(a,s.c_str(),MAXBUF);
 136                         strlower(a);
 137                         return strhash(a);
 138                 }
 139         };
 140 }
 141
 142
 143 struct StrHashComp
 144 {
 145
 146         bool operator()(const string& s1, const string& s2) const
 147         {
 148                 char a[MAXBUF],b[MAXBUF];
 149                 strlcpy(a,s1.c_str(),MAXBUF);
 150                 strlcpy(b,s2.c_str(),MAXBUF);
 151                 return (strcasecmp(a,b) == 0);
 152         }
 153
 154 };
 155
 156 struct InAddr_HashComp
 157 {
 158
 159         bool operator()(const in_addr &s1, const in_addr &s2) const
 160         {
 161                 size_t q;
 162                 size_t p;
 163
 164                 memcpy(&q,&s1,sizeof(size_t));
 165                 memcpy(&p,&s2,sizeof(size_t));
 166
 167                 return (q == p);
 168         }
 169
 170 };
 171
 172
 173 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 174 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 175 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 176 typedef std::deque<command_t> command_table;
 177
 178 serverrec* me[32];
 179
 180 FILE *log_file;
 181
 182 user_hash clientlist;
 183 chan_hash chanlist;
 184 user_hash whowas;
 185 command_table cmdlist;
 186 file_cache MOTD;
 187 file_cache RULES;
 188 address_cache IP;
 189
 190 ClassVector Classes;
 191
 192 struct linger linger = { 0 };
 193 char MyExecutable[1024];
 194 int boundPortCount = 0;
 195 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 196 int defaultRoute = 0;
 197 char ModPath[MAXBUF];
 198
 199 connection C;
 200
 201 long MyKey = C.GenKey();
 202
 203 /* prototypes */
 204
 205 int has_channel(userrec *u, chanrec *c);
 206 int usercount(chanrec *c);
 207 int usercount_i(chanrec *c);
 208 char* Passwd(userrec *user);
 209 bool IsDenied(userrec *user);
 210 void AddWhoWas(userrec* u);
 211
 212 std::vector<long> auth_cookies;
 213 std::stringstream config_f(stringstream::in | stringstream::out);
 214
 215
 216
 217 long GetRevision()
 218 {
 219         char Revision[] = "$Revision$";
 220         char *s1 = Revision;
 221         char *savept;
 222         char *v1 = strtok_r(s1," ",&savept);
 223         s1 = savept;
 224         char *v2 = strtok_r(s1," ",&savept);
 225         s1 = savept;
 226         return (long)(atof(v2)*10000);
 227 }
 228
 229
 230 std::string getservername()
 231 {
 232         return ServerName;
 233 }
 234
 235 std::string getserverdesc()
 236 {
 237         return ServerDesc;
 238 }
 239
 240 std::string getnetworkname()
 241 {
 242         return Network;
 243 }
 244
 245 std::string getadminname()
 246 {
 247         return AdminName;
 248 }
 249
 250 std::string getadminemail()
 251 {
 252         return AdminEmail;
 253 }
 254
 255 std::string getadminnick()
 256 {
 257         return AdminNick;
 258 }
 259
 260 void log(int level,char *text, ...)
 261 {
 262         char textbuffer[MAXBUF];
 263         va_list argsPtr;
 264         time_t rawtime;
 265         struct tm * timeinfo;
 266         if (level < LogLevel)
 267                 return;
 268
 269         time(&rawtime);
 270         timeinfo = localtime (&rawtime);
 271
 272         if (log_file)
 273         {
 274                 char b[MAXBUF];
 275                 va_start (argsPtr, text);
 276                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 277                 va_end(argsPtr);
 278                 strlcpy(b,asctime(timeinfo),MAXBUF);
 279                 b[strlen(b)-1] = ':';
 280                 fprintf(log_file,"%s %s\n",b,textbuffer);
 281                 if (nofork)
 282                 {
 283                         // nofork enabled? display it on terminal too
 284                         printf("%s %s\n",b,textbuffer);
 285                 }
 286         }
 287 }
 288
 289 void readfile(file_cache &F, const char* fname)
 290 {
 291         FILE* file;
 292         char linebuf[MAXBUF];
 293
 294         log(DEBUG,"readfile: loading %s",fname);
 295         F.clear();
 296         file =  fopen(fname,"r");
 297         if (file)
 298         {
 299                 while (!feof(file))
 300                 {
 301                         fgets(linebuf,sizeof(linebuf),file);
 302                         linebuf[strlen(linebuf)-1]='\0';
 303                         if (!strcmp(linebuf,""))
 304                         {
 305                                 strcpy(linebuf,"  ");
 306                         }
 307                         if (!feof(file))
 308                         {
 309                                 F.push_back(linebuf);
 310                         }
 311                 }
 312                 fclose(file);
 313         }
 314         else
 315         {
 316                 log(DEBUG,"readfile: failed to load file: %s",fname);
 317         }
 318         log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 319 }
 320
 321 void ReadConfig(bool bail, userrec* user)
 322 {
 323         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 324         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
 325         ConnectClass c;
 326         std::stringstream errstr;
 327
 328         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 329         {
 330                 errstr.seekg(0);
 331                 if (bail)
 332                 {
 333                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 334                         Exit(0);
 335                 }
 336                 else
 337                 {
 338                         char dataline[1024];
 339                         if (user)
 340                         {
 341                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 342                                 while (!errstr.eof())
 343                                 {
 344                                         errstr.getline(dataline,1024);
 345                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 346                                 }
 347                         }
 348                         else
 349                         {
 350                                 WriteOpers("There were errors in the configuration file:",user->nick);
 351                                 while (!errstr.eof())
 352                                 {
 353                                         errstr.getline(dataline,1024);
 354                                         WriteOpers(dataline);
 355                                 }
 356                         }
 357                         return;
 358                 }
 359         }
 360
 361         ConfValue("server","name",0,ServerName,&config_f);
 362         ConfValue("server","description",0,ServerDesc,&config_f);
 363         ConfValue("server","network",0,Network,&config_f);
 364         ConfValue("admin","name",0,AdminName,&config_f);
 365         ConfValue("admin","email",0,AdminEmail,&config_f);
 366         ConfValue("admin","nick",0,AdminNick,&config_f);
 367         ConfValue("files","motd",0,motd,&config_f);
 368         ConfValue("files","rules",0,rules,&config_f);
 369         ConfValue("power","diepass",0,diepass,&config_f);
 370         ConfValue("power","pause",0,pauseval,&config_f);
 371         ConfValue("power","restartpass",0,restartpass,&config_f);
 372         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 373         ConfValue("die","value",0,DieValue,&config_f);
 374         ConfValue("options","loglevel",0,dbg,&config_f);
 375         ConfValue("options","netbuffersize",0,NB,&config_f);
 376         ConfValue("options","maxwho",0,MW,&config_f);
 377         ConfValue("options","allowhalfop",0,AH,&config_f);
 378         ConfValue("options","allowprotect",0,AP,&config_f);
 379         ConfValue("options","allowfounder",0,AF,&config_f);
 380         ConfValue("dns","server",0,DNSServer,&config_f);
 381         ConfValue("dns","timeout",0,DNT,&config_f);
 382         ConfValue("options","moduledir",0,ModPath,&config_f);
 383         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 384
 385         NetBufferSize = atoi(NB);
 386         MaxWhoResults = atoi(MW);
 387         dns_timeout = atoi(DNT);
 388         if (!dns_timeout)
 389                 dns_timeout = 5;
 390         if (!strcmp(DNSServer,""))
 391                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 392         if (!strcmp(ModPath,""))
 393                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 394         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 395         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 396         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 397         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 398         {
 399                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 400                 NetBufferSize = 10240;
 401         }
 402         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 403         {
 404                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 405                 MaxWhoResults = 128;
 406         }
 407         if (!strcmp(dbg,"debug"))
 408                 LogLevel = DEBUG;
 409         if (!strcmp(dbg,"verbose"))
 410                 LogLevel = VERBOSE;
 411         if (!strcmp(dbg,"default"))
 412                 LogLevel = DEFAULT;
 413         if (!strcmp(dbg,"sparse"))
 414                 LogLevel = SPARSE;
 415         if (!strcmp(dbg,"none"))
 416                 LogLevel = NONE;
 417         readfile(MOTD,motd);
 418         log(DEFAULT,"Reading message of the day...");
 419         readfile(RULES,rules);
 420         log(DEFAULT,"Reading connect classes...");
 421         Classes.clear();
 422         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 423         {
 424                 strcpy(Value,"");
 425                 ConfValue("connect","allow",i,Value,&config_f);
 426                 ConfValue("connect","timeout",i,timeout,&config_f);
 427                 ConfValue("connect","flood",i,flood,&config_f);
 428                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 429                 if (strcmp(Value,""))
 430                 {
 431                         strlcpy(c.host,Value,MAXBUF);
 432                         c.type = CC_ALLOW;
 433                         strlcpy(Value,"",MAXBUF);
 434                         ConfValue("connect","password",i,Value,&config_f);
 435                         strlcpy(c.pass,Value,MAXBUF);
 436                         c.registration_timeout = 90; // default is 2 minutes
 437                         c.pingtime = 120;
 438                         c.flood = atoi(flood);
 439                         if (atoi(timeout)>0)
 440                         {
 441                                 c.registration_timeout = atoi(timeout);
 442                         }
 443                         if (atoi(pfreq)>0)
 444                         {
 445                                 c.pingtime = atoi(pfreq);
 446                         }
 447                         Classes.push_back(c);
 448                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 449                 }
 450                 else
 451                 {
 452                         ConfValue("connect","deny",i,Value,&config_f);
 453                         strlcpy(c.host,Value,MAXBUF);
 454                         c.type = CC_DENY;
 455                         Classes.push_back(c);
 456                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 457                 }
 458
 459         }
 460         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 461         read_xline_defaults();
 462         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 463         apply_lines();
 464         log(DEFAULT,"Done reading configuration file, InspIRCd is now running.");
 465         if (!bail)
 466         {
 467                 log(DEFAULT,"Adding and removing modules due to rehash...");
 468
 469                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 470
 471                 // store the old module names
 472                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 473                 {
 474                         old_module_names.push_back(*t);
 475                 }
 476
 477                 // get the new module names
 478                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 479                 {
 480                         ConfValue("module","name",count2,Value,&config_f);
 481                         new_module_names.push_back(Value);
 482                 }
 483
 484                 // now create a list of new modules that are due to be loaded
 485                 // and a seperate list of modules which are due to be unloaded
 486                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 487                 {
 488                         bool added = true;
 489                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 490                         {
 491                                 if (*old == *_new)
 492                                         added = false;
 493                         }
 494                         if (added)
 495                                 added_modules.push_back(*_new);
 496                 }
 497                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 498                 {
 499                         bool removed = true;
 500                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 501                         {
 502                                 if (*newm == *oldm)
 503                                         removed = false;
 504                         }
 505                         if (removed)
 506                                 removed_modules.push_back(*oldm);
 507                 }
 508                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 509                 // to be removed.
 510                 int rem = 0, add = 0;
 511                 if (!removed_modules.empty())
 512                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 513                 {
 514                         if (UnloadModule(removing->c_str()))
 515                         {
 516                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 517                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 518                                 rem++;
 519                         }
 520                         else
 521                         {
 522                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 523                         }
 524                 }
 525                 if (!added_modules.empty())
 526                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 527                 {
 528                         if (LoadModule(adding->c_str()))
 529                         {
 530                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 531                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 532                                 add++;
 533                         }
 534                         else
 535                         {
 536                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 537                         }
 538                 }
 539                 log(DEFAULT,"Successfully unloaded %d of %d modules and loaded %d of %d modules.",rem,removed_modules.size(),add,added_modules.size());
 540         }
 541 }
 542
 543 /* write formatted text to a socket, in same format as printf */
 544
 545 void Write(int sock,char *text, ...)
 546 {
 547         if (sock == FD_MAGIC_NUMBER)
 548                 return;
 549         if (!text)
 550         {
 551                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 552                 return;
 553         }
 554         char textbuffer[MAXBUF];
 555         va_list argsPtr;
 556         char tb[MAXBUF];
 557
 558         va_start (argsPtr, text);
 559         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 560         va_end(argsPtr);
 561         snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 562         chop(tb);
 563         if (sock != -1)
 564         {
 565                 write(sock,tb,strlen(tb));
 566         }
 567 }
 568
 569 /* write a server formatted numeric response to a single socket */
 570
 571 void WriteServ(int sock, char* text, ...)
 572 {
 573         if (sock == FD_MAGIC_NUMBER)
 574                 return;
 575         if (!text)
 576         {
 577                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 578                 return;
 579         }
 580         char textbuffer[MAXBUF],tb[MAXBUF];
 581         va_list argsPtr;
 582         va_start (argsPtr, text);
 583
 584         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 585         va_end(argsPtr);
 586         snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 587         chop(tb);
 588         if (sock != -1)
 589         {
 590                 write(sock,tb,strlen(tb));
 591         }
 592 }
 593
 594 /* write text from an originating user to originating user */
 595
 596 void WriteFrom(int sock, userrec *user,char* text, ...)
 597 {
 598         if (sock == FD_MAGIC_NUMBER)
 599                 return;
 600         if ((!text) || (!user))
 601         {
 602                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 603                 return;
 604         }
 605         char textbuffer[MAXBUF],tb[MAXBUF];
 606         va_list argsPtr;
 607         va_start (argsPtr, text);
 608
 609         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 610         va_end(argsPtr);
 611         snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 612         chop(tb);
 613         if (sock != -1)
 614         {
 615                 write(sock,tb,strlen(tb));
 616         }
 617 }
 618
 619 /* write text to an destination user from a source user (e.g. user privmsg) */
 620
 621 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 622 {
 623         if ((!dest) || (!data))
 624         {
 625                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 626                 return;
 627         }
 628         if (dest->fd == FD_MAGIC_NUMBER)
 629                 return;
 630         char textbuffer[MAXBUF],tb[MAXBUF];
 631         va_list argsPtr;
 632         va_start (argsPtr, data);
 633         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 634         va_end(argsPtr);
 635         chop(tb);
 636
 637         // if no source given send it from the server.
 638         if (!source)
 639         {
 640                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 641         }
 642         else
 643         {
 644                 WriteFrom(dest->fd,source,"%s",textbuffer);
 645         }
 646 }
 647
 648 /* write formatted text from a source user to all users on a channel
 649  * including the sender (NOT for privmsg, notice etc!) */
 650
 651 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 652 {
 653         if ((!Ptr) || (!user) || (!text))
 654         {
 655                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 656                 return;
 657         }
 658         char textbuffer[MAXBUF];
 659         va_list argsPtr;
 660         va_start (argsPtr, text);
 661         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 662         va_end(argsPtr);
 663         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 664         {
 665                 if (has_channel(i->second,Ptr))
 666                 {
 667                         if (i->second->fd != FD_MAGIC_NUMBER)
 668                                 WriteTo(user,i->second,"%s",textbuffer);
 669                 }
 670         }
 671 }
 672
 673 /* write formatted text from a source user to all users on a channel
 674  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 675  * users on remote servers */
 676
 677 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 678 {
 679         if ((!Ptr) || (!text))
 680         {
 681                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 682                 return;
 683         }
 684         char textbuffer[MAXBUF];
 685         va_list argsPtr;
 686         va_start (argsPtr, text);
 687         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 688         va_end(argsPtr);
 689         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 690         {
 691                 if (has_channel(i->second,Ptr))
 692                 {
 693                         if ((i->second->fd != -1) && (i->second->fd != FD_MAGIC_NUMBER))
 694                         {
 695                                 if (!user)
 696                                 {
 697                                         WriteServ(i->second->fd,"%s",textbuffer);
 698                                 }
 699                                 else
 700                                 {
 701                                         WriteTo(user,i->second,"%s",textbuffer);
 702                                 }
 703                         }
 704                 }
 705         }
 706 }
 707
 708
 709 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 710 {
 711         if ((!Ptr) || (!user) || (!text))
 712         {
 713                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 714                 return;
 715         }
 716         char textbuffer[MAXBUF];
 717         va_list argsPtr;
 718         va_start (argsPtr, text);
 719         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 720         va_end(argsPtr);
 721         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 722         {
 723                 if (i->second)
 724                 {
 725                         if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 726                         {
 727                                 WriteServ(i->second->fd,"%s",textbuffer);
 728                         }
 729                 }
 730         }
 731 }
 732
 733
 734 /* write formatted text from a source user to all users on a channel except
 735  * for the sender (for privmsg etc) */
 736
 737 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 738 {
 739         if ((!Ptr) || (!user) || (!text))
 740         {
 741                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 742                 return;
 743         }
 744         char textbuffer[MAXBUF];
 745         va_list argsPtr;
 746         va_start (argsPtr, text);
 747         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 748         va_end(argsPtr);
 749
 750         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 751         {
 752                 if (i->second)
 753                 {
 754                         if ((has_channel(i->second,Ptr)) && (user != i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 755                         {
 756                                 WriteTo(user,i->second,"%s",textbuffer);
 757                         }
 758                 }
 759         }
 760 }
 761
 762
 763 std::string GetServerDescription(char* servername)
 764 {
 765         for (int j = 0; j < 32; j++)
 766         {
 767                 if (me[j] != NULL)
 768                 {
 769                         for (int k = 0; k < me[j]->connectors.size(); k++)
 770                         {
 771                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 772                                 {
 773                                         return me[j]->connectors[k].GetDescription();
 774                                 }
 775                         }
 776                 }
 777                 return ServerDesc; // not a remote server that can be found, it must be me.
 778         }
 779 }
 780
 781
 782 /* write a formatted string to all users who share at least one common
 783  * channel, including the source user e.g. for use in NICK */
 784
 785 void WriteCommon(userrec *u, char* text, ...)
 786 {
 787         if (!u)
 788         {
 789                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 790                 return;
 791         }
 792
 793         if (u->registered != 7) {
 794                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 795                 return;
 796         }
 797
 798         char textbuffer[MAXBUF];
 799         va_list argsPtr;
 800         va_start (argsPtr, text);
 801         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 802         va_end(argsPtr);
 803
 804         WriteFrom(u->fd,u,"%s",textbuffer);
 805
 806         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 807         {
 808                 if (i->second)
 809                 {
 810                         if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 811                         {
 812                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 813                         }
 814                 }
 815         }
 816 }
 817
 818 /* write a formatted string to all users who share at least one common
 819  * channel, NOT including the source user e.g. for use in QUIT */
 820
 821 void WriteCommonExcept(userrec *u, char* text, ...)
 822 {
 823         if (!u)
 824         {
 825                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 826                 return;
 827         }
 828
 829         if (u->registered != 7) {
 830                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 831                 return;
 832         }
 833
 834         char textbuffer[MAXBUF];
 835         va_list argsPtr;
 836         va_start (argsPtr, text);
 837         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 838         va_end(argsPtr);
 839
 840         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 841         {
 842                 if (i->second)
 843                 {
 844                         if ((common_channels(u,i->second)) && (u != i->second))
 845                         {
 846                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 847                         }
 848                 }
 849         }
 850 }
 851
 852 void WriteOpers(char* text, ...)
 853 {
 854         if (!text)
 855         {
 856                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 857                 return;
 858         }
 859
 860         char textbuffer[MAXBUF];
 861         va_list argsPtr;
 862         va_start (argsPtr, text);
 863         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 864         va_end(argsPtr);
 865
 866         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 867         {
 868                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 869                 {
 870                         if (strchr(i->second->modes,'o'))
 871                         {
 872                                 if (strchr(i->second->modes,'s'))
 873                                 {
 874                                         // send server notices to all with +s
 875                                         // (TODO: needs SNOMASKs)
 876                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 877                                 }
 878                         }
 879                 }
 880         }
 881 }
 882
 883 // returns TRUE of any users on channel C occupy server 'servername'.
 884
 885 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 886 {
 887         log(DEBUG,"ChanAnyOnThisServer");
 888         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 889         {
 890                 if (has_channel(i->second,c))
 891                 {
 892                         if (!strcasecmp(i->second->server,servername))
 893                         {
 894                                 return true;
 895                         }
 896                 }
 897         }
 898         return false;
 899 }
 900
 901 // returns true if user 'u' shares any common channels with any users on server 'servername'
 902
 903 bool CommonOnThisServer(userrec* u,const char* servername)
 904 {
 905         log(DEBUG,"ChanAnyOnThisServer");
 906         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 907         {
 908                 if ((common_channels(u,i->second)) && (u != i->second))
 909                 {
 910                         if (!strcasecmp(i->second->server,servername))
 911                         {
 912                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 913                                 return true;
 914                         }
 915                 }
 916         }
 917         return false;
 918 }
 919
 920
 921 void NetSendToCommon(userrec* u, char* s)
 922 {
 923         char buffer[MAXBUF];
 924         snprintf(buffer,MAXBUF,"%s",s);
 925
 926         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 927
 928         std::string msg = buffer;
 929         FOREACH_MOD OnPacketTransmit(msg,s);
 930         strlcpy(buffer,msg.c_str(),MAXBUF);
 931
 932         for (int j = 0; j < 32; j++)
 933         {
 934                 if (me[j] != NULL)
 935                 {
 936                         for (int k = 0; k < me[j]->connectors.size(); k++)
 937                         {
 938                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 939                                 {
 940                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 941                                 }
 942                         }
 943                 }
 944         }
 945 }
 946
 947
 948 void NetSendToAll(char* s)
 949 {
 950         char buffer[MAXBUF];
 951         snprintf(buffer,MAXBUF,"%s",s);
 952
 953         log(DEBUG,"NetSendToAll: '%s'",s);
 954
 955         std::string msg = buffer;
 956         FOREACH_MOD OnPacketTransmit(msg,s);
 957         strlcpy(buffer,msg.c_str(),MAXBUF);
 958
 959         for (int j = 0; j < 32; j++)
 960         {
 961                 if (me[j] != NULL)
 962                 {
 963                         for (int k = 0; k < me[j]->connectors.size(); k++)
 964                         {
 965                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 966                         }
 967                 }
 968         }
 969 }
 970
 971 void NetSendToAllAlive(char* s)
 972 {
 973         char buffer[MAXBUF];
 974         snprintf(buffer,MAXBUF,"%s",s);
 975
 976         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 977
 978         std::string msg = buffer;
 979         FOREACH_MOD OnPacketTransmit(msg,s);
 980         strlcpy(buffer,msg.c_str(),MAXBUF);
 981
 982         for (int j = 0; j < 32; j++)
 983         {
 984                 if (me[j] != NULL)
 985                 {
 986                         for (int k = 0; k < me[j]->connectors.size(); k++)
 987                         {
 988                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 989                                 {
 990                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 991                                 }
 992                                 else
 993                                 {
 994                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 995                                 }
 996                         }
 997                 }
 998         }
 999 }
1000
1001
1002 void NetSendToOne(char* target,char* s)
1003 {
1004         char buffer[MAXBUF];
1005         snprintf(buffer,MAXBUF,"%s",s);
1006
1007         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1008
1009         std::string msg = buffer;
1010         FOREACH_MOD OnPacketTransmit(msg,s);
1011         strlcpy(buffer,msg.c_str(),MAXBUF);
1012
1013         for (int j = 0; j < 32; j++)
1014         {
1015                 if (me[j] != NULL)
1016                 {
1017                         for (int k = 0; k < me[j]->connectors.size(); k++)
1018                         {
1019                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1020                                 {
1021                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1022                                 }
1023                         }
1024                 }
1025         }
1026 }
1027
1028 void NetSendToAllExcept(const char* target,char* s)
1029 {
1030         char buffer[MAXBUF];
1031         snprintf(buffer,MAXBUF,"%s",s);
1032
1033         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1034
1035         std::string msg = buffer;
1036         FOREACH_MOD OnPacketTransmit(msg,s);
1037         strlcpy(buffer,msg.c_str(),MAXBUF);
1038
1039         for (int j = 0; j < 32; j++)
1040         {
1041                 if (me[j] != NULL)
1042                 {
1043                         for (int k = 0; k < me[j]->connectors.size(); k++)
1044                         {
1045                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1046                                 {
1047                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1048                                 }
1049                         }
1050                 }
1051         }
1052 }
1053
1054
1055 void WriteMode(const char* modes, int flags, const char* text, ...)
1056 {
1057         if ((!text) || (!modes) || (!flags))
1058         {
1059                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1060                 return;
1061         }
1062
1063         char textbuffer[MAXBUF];
1064         va_list argsPtr;
1065         va_start (argsPtr, text);
1066         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1067         va_end(argsPtr);
1068
1069         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1070         {
1071                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1072                 {
1073                         bool send_to_user = false;
1074
1075                         if (flags == WM_AND)
1076                         {
1077                                 send_to_user = true;
1078                                 for (int n = 0; n < strlen(modes); n++)
1079                                 {
1080                                         if (!hasumode(i->second,modes[n]))
1081                                         {
1082                                                 send_to_user = false;
1083                                                 break;
1084                                         }
1085                                 }
1086                         }
1087                         else if (flags == WM_OR)
1088                         {
1089                                 send_to_user = false;
1090                                 for (int n = 0; n < strlen(modes); n++)
1091                                 {
1092                                         if (hasumode(i->second,modes[n]))
1093                                         {
1094                                                 send_to_user = true;
1095                                                 break;
1096                                         }
1097                                 }
1098                         }
1099
1100                         if (send_to_user)
1101                         {
1102                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1103                         }
1104                 }
1105         }
1106 }
1107
1108
1109 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1110 {
1111         if ((!text) || (!source))
1112         {
1113                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1114                 return;
1115         }
1116
1117         int i = 0;
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 i = 0;
1382         int count = 0;
1383
1384         if (!c)
1385         {
1386                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1387                 return 0;
1388         }
1389
1390         strcpy(list,"");
1391         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1392         {
1393                 if (i->second)
1394                 {
1395                         if (has_channel(i->second,c))
1396                         {
1397                                 if (isnick(i->second->nick))
1398                                 {
1399                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1400                                         {
1401                                                 /* user is +i, and source not on the channel, does not show
1402                                                  * nick in NAMES list */
1403                                                 continue;
1404                                         }
1405                                         count++;
1406                                 }
1407                         }
1408                 }
1409         }
1410         log(DEBUG,"usercount_i: %s %d",c->name,count);
1411         return count;
1412 }
1413
1414
1415 int usercount(chanrec *c)
1416 {
1417         int i = 0;
1418         int count = 0;
1419
1420         if (!c)
1421         {
1422                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1423                 return 0;
1424         }
1425
1426         strcpy(list,"");
1427         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1428         {
1429                 if (i->second)
1430                 {
1431                         if (has_channel(i->second,c))
1432                         {
1433                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1434                                 {
1435                                         count++;
1436                                 }
1437                         }
1438                 }
1439         }
1440         log(DEBUG,"usercount: %s %d",c->name,count);
1441         return count;
1442 }
1443
1444
1445 /* add a channel to a user, creating the record for it if needed and linking
1446  * it to the user record */
1447
1448 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1449 {
1450         if ((!user) || (!cn))
1451         {
1452                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1453                 return 0;
1454         }
1455
1456         int i = 0;
1457         chanrec* Ptr;
1458         int created = 0;
1459         char cname[MAXBUF];
1460
1461         strncpy(cname,cn,MAXBUF);
1462
1463         // we MUST declare this wherever we use FOREACH_RESULT
1464         int MOD_RESULT = 0;
1465
1466         if (strlen(cname) > CHANMAX-1)
1467         {
1468                 cname[CHANMAX-1] = '\0';
1469         }
1470
1471         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1472
1473         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1474         {
1475                 return NULL; // already on the channel!
1476         }
1477
1478
1479         if (!FindChan(cname))
1480         {
1481                 int MOD_RESULT = 0;
1482                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1483                 if (MOD_RESULT == 1) {
1484                         return NULL;
1485                 }
1486
1487                 /* create a new one */
1488                 log(DEBUG,"add_channel: creating: %s",cname);
1489                 {
1490                         chanlist[cname] = new chanrec();
1491
1492                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1493                         chanlist[cname]->topiclock = 1;
1494                         chanlist[cname]->noexternal = 1;
1495                         chanlist[cname]->created = TIME;
1496                         strcpy(chanlist[cname]->topic, "");
1497                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1498                         chanlist[cname]->topicset = 0;
1499                         Ptr = chanlist[cname];
1500                         log(DEBUG,"add_channel: created: %s",cname);
1501                         /* set created to 2 to indicate user
1502                          * is the first in the channel
1503                          * and should be given ops */
1504                         created = 2;
1505                 }
1506         }
1507         else
1508         {
1509                 /* channel exists, just fish out a pointer to its struct */
1510                 Ptr = FindChan(cname);
1511                 if (Ptr)
1512                 {
1513                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1514
1515                         // the override flag allows us to bypass channel modes
1516                         // and bans (used by servers)
1517                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1518                         {
1519                                 log(DEBUG,"Not overriding...");
1520                                 int MOD_RESULT = 0;
1521                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1522                                 if (MOD_RESULT == 1) {
1523                                         return NULL;
1524                                 }
1525                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1526
1527                                 if (!MOD_RESULT)
1528                                 {
1529                                         log(DEBUG,"add_channel: checking key, invite, etc");
1530                                         int MOD_RESULT = 0;
1531                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1532                                         if (MOD_RESULT == 0)
1533                                         {
1534                                                 if (strcmp(Ptr->key,""))
1535                                                 {
1536                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1537                                                         if (!key)
1538                                                         {
1539                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1540                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1541                                                                 return NULL;
1542                                                         }
1543                                                         else
1544                                                         {
1545                                                                 if (strcasecmp(key,Ptr->key))
1546                                                                 {
1547                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1548                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1549                                                                         return NULL;
1550                                                                 }
1551                                                         }
1552                                                 }
1553                                                 log(DEBUG,"add_channel: no key");
1554                                         }
1555                                         MOD_RESULT = 0;
1556                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1557                                         if (MOD_RESULT == 0)
1558                                         {
1559                                                 if (Ptr->inviteonly)
1560                                                 {
1561                                                         log(DEBUG,"add_channel: channel is +i");
1562                                                         if (user->IsInvited(Ptr->name))
1563                                                         {
1564                                                                 /* user was invited to channel */
1565                                                                 /* there may be an optional channel NOTICE here */
1566                                                         }
1567                                                         else
1568                                                         {
1569                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1570                                                                 return NULL;
1571                                                         }
1572                                                 }
1573                                                 log(DEBUG,"add_channel: channel is not +i");
1574                                         }
1575                                         MOD_RESULT = 0;
1576                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1577                                         if (MOD_RESULT == 0)
1578                                         {
1579                                                 if (Ptr->limit)
1580                                                 {
1581                                                         if (usercount(Ptr) >= Ptr->limit)
1582                                                         {
1583                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1584                                                                 return NULL;
1585                                                         }
1586                                                 }
1587                                         }
1588                                         log(DEBUG,"add_channel: about to walk banlist");
1589                                         MOD_RESULT = 0;
1590                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1591                                         if (MOD_RESULT == 0)
1592                                         {
1593                                                 /* check user against the channel banlist */
1594                                                 if (Ptr)
1595                                                 {
1596                                                         if (Ptr->bans.size())
1597                                                         {
1598                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1599                                                                 {
1600                                                                         if (match(user->GetFullHost(),i->data))
1601                                                                         {
1602                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1603                                                                                 return NULL;
1604                                                                         }
1605                                                                 }
1606                                                         }
1607                                                 }
1608                                                 log(DEBUG,"add_channel: bans checked");
1609                                         }
1610
1611                                 }
1612
1613
1614                                 if ((Ptr) && (user))
1615                                 {
1616                                         user->RemoveInvite(Ptr->name);
1617                                 }
1618
1619                                 log(DEBUG,"add_channel: invites removed");
1620
1621                         }
1622                         else
1623                         {
1624                                 log(DEBUG,"Overridden checks");
1625                         }
1626
1627
1628                 }
1629                 created = 1;
1630         }
1631
1632         log(DEBUG,"Passed channel checks");
1633
1634         for (int i =0; i != MAXCHANS; i++)
1635         {
1636                 log(DEBUG,"Check location %d",i);
1637                 if (user->chans[i].channel == NULL)
1638                 {
1639                         log(DEBUG,"Adding into their channel list at location %d",i);
1640
1641                         if (created == 2)
1642                         {
1643                                 /* first user in is given ops */
1644                                 user->chans[i].uc_modes = UCMODE_OP;
1645                         }
1646                         else
1647                         {
1648                                 user->chans[i].uc_modes = 0;
1649                         }
1650                         user->chans[i].channel = Ptr;
1651                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1652
1653                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1654                         {
1655                                 // use the stamdard J token with no privilages.
1656                                 char buffer[MAXBUF];
1657                                 if (created == 2)
1658                                 {
1659                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1660                                 }
1661                                 else
1662                                 {
1663                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1664                                 }
1665                                 NetSendToAll(buffer);
1666                         }
1667
1668                         log(DEBUG,"Sent JOIN to client");
1669
1670                         if (Ptr->topicset)
1671                         {
1672                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1673                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1674                         }
1675                         userlist(user,Ptr);
1676                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1677                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1678                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1679                         FOREACH_MOD OnUserJoin(user,Ptr);
1680                         return Ptr;
1681                 }
1682         }
1683         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1684         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1685         return NULL;
1686 }
1687
1688 /* remove a channel from a users record, and remove the record from memory
1689  * if the channel has become empty */
1690
1691 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1692 {
1693         if ((!user) || (!cname))
1694         {
1695                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1696                 return NULL;
1697         }
1698
1699         chanrec* Ptr;
1700         int created = 0;
1701
1702         if ((!cname) || (!user))
1703         {
1704                 return NULL;
1705         }
1706
1707         Ptr = FindChan(cname);
1708
1709         if (!Ptr)
1710         {
1711                 return NULL;
1712         }
1713
1714         FOREACH_MOD OnUserPart(user,Ptr);
1715         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1716
1717         for (int i =0; i != MAXCHANS; i++)
1718         {
1719                 /* zap it from the channel list of the user */
1720                 if (user->chans[i].channel == Ptr)
1721                 {
1722                         if (reason)
1723                         {
1724                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1725
1726                                 if (!local)
1727                                 {
1728                                         char buffer[MAXBUF];
1729                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1730                                         NetSendToAll(buffer);
1731                                 }
1732
1733
1734                         }
1735                         else
1736                         {
1737                                 if (!local)
1738                                 {
1739                                         char buffer[MAXBUF];
1740                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1741                                         NetSendToAll(buffer);
1742                                 }
1743
1744                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1745                         }
1746                         user->chans[i].uc_modes = 0;
1747                         user->chans[i].channel = NULL;
1748                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1749                         break;
1750                 }
1751         }
1752
1753         /* if there are no users left on the channel */
1754         if (!usercount(Ptr))
1755         {
1756                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1757
1758                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1759
1760                 /* kill the record */
1761                 if (iter != chanlist.end())
1762                 {
1763                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1764                         if (iter->second) delete iter->second;
1765                         chanlist.erase(iter);
1766                 }
1767         }
1768 }
1769
1770
1771 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1772 {
1773         if ((!src) || (!user) || (!Ptr) || (!reason))
1774         {
1775                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1776                 return;
1777         }
1778
1779         int i = 0;
1780         int created = 0;
1781
1782         if ((!Ptr) || (!user) || (!src))
1783         {
1784                 return;
1785         }
1786
1787         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1788
1789         if (!has_channel(user,Ptr))
1790         {
1791                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1792                 return;
1793         }
1794
1795         int MOD_RESULT = 0;
1796         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1797         if (MOD_RESULT == ACR_DENY)
1798                 return;
1799
1800         if (MOD_RESULT == ACR_DEFAULT)
1801         {
1802                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1803                 {
1804                         if (cstatus(src,Ptr) == STATUS_HOP)
1805                         {
1806                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1807                         }
1808                         else
1809                         {
1810                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1811                         }
1812
1813                         return;
1814                 }
1815         }
1816
1817         MOD_RESULT = 0;
1818         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1819         if (MOD_RESULT)
1820                 return;
1821
1822         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1823
1824         for (int i =0; i != MAXCHANS; i++)
1825         {
1826                 /* zap it from the channel list of the user */
1827                 if (user->chans[i].channel)
1828                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1829                 {
1830                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1831                         user->chans[i].uc_modes = 0;
1832                         user->chans[i].channel = NULL;
1833                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1834                         break;
1835                 }
1836         }
1837
1838         /* if there are no users left on the channel */
1839         if (!usercount(Ptr))
1840         {
1841                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1842
1843                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1844
1845                 /* kill the record */
1846                 if (iter != chanlist.end())
1847                 {
1848                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1849                         if (iter->second) delete iter->second;
1850                         chanlist.erase(iter);
1851                 }
1852         }
1853 }
1854
1855
1856
1857
1858 /* This function pokes and hacks at a parameter list like the following:
1859  *
1860  * PART #winbot,#darkgalaxy :m00!
1861  *
1862  * to turn it into a series of individual calls like this:
1863  *
1864  * PART #winbot :m00!
1865  * PART #darkgalaxy :m00!
1866  *
1867  * The seperate calls are sent to a callback function provided by the caller
1868  * (the caller will usually call itself recursively). The callback function
1869  * must be a command handler. Calling this function on a line with no list causes
1870  * no action to be taken. You must provide a starting and ending parameter number
1871  * where the range of the list can be found, useful if you have a terminating
1872  * parameter as above which is actually not part of the list, or parameters
1873  * before the actual list as well. This code is used by many functions which
1874  * can function as "one to list" (see the RFC) */
1875
1876 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1877 {
1878         char plist[MAXBUF];
1879         char *param;
1880         char *pars[32];
1881         char blog[32][MAXBUF];
1882         char blog2[32][MAXBUF];
1883         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
1884         char keystr[MAXBUF];
1885         char moo[MAXBUF];
1886
1887         for (int i = 0; i <32; i++)
1888                 strcpy(blog[i],"");
1889
1890         for (int i = 0; i <32; i++)
1891                 strcpy(blog2[i],"");
1892
1893         strcpy(moo,"");
1894         for (int i = 0; i <10; i++)
1895         {
1896                 if (!parameters[i])
1897                 {
1898                         parameters[i] = moo;
1899                 }
1900         }
1901         if (joins)
1902         {
1903                 if (pcnt > 1) /* we have a key to copy */
1904                 {
1905                         strlcpy(keystr,parameters[1],MAXBUF);
1906                 }
1907         }
1908
1909         if (!parameters[start])
1910         {
1911                 return 0;
1912         }
1913         if (!strchr(parameters[start],','))
1914         {
1915                 return 0;
1916         }
1917         strcpy(plist,"");
1918         for (int i = start; i <= end; i++)
1919         {
1920                 if (parameters[i])
1921                 {
1922                         strlcat(plist,parameters[i],MAXBUF);
1923                 }
1924         }
1925
1926         j = 0;
1927         param = plist;
1928
1929         t = strlen(plist);
1930         for (int i = 0; i < t; i++)
1931         {
1932                 if (plist[i] == ',')
1933                 {
1934                         plist[i] = '\0';
1935                         strlcpy(blog[j++],param,MAXBUF);
1936                         param = plist+i+1;
1937                         if (j>20)
1938                         {
1939                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
1940                                 return 1;
1941                         }
1942                 }
1943         }
1944         strlcpy(blog[j++],param,MAXBUF);
1945         total = j;
1946
1947         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
1948         {
1949                 strcat(keystr,",");
1950         }
1951
1952         if ((joins) && (keystr))
1953         {
1954                 if (strchr(keystr,','))
1955                 {
1956                         j = 0;
1957                         param = keystr;
1958                         t2 = strlen(keystr);
1959                         for (int i = 0; i < t2; i++)
1960                         {
1961                                 if (keystr[i] == ',')
1962                                 {
1963                                         keystr[i] = '\0';
1964                                         strlcpy(blog2[j++],param,MAXBUF);
1965                                         param = keystr+i+1;
1966                                 }
1967                         }
1968                         strlcpy(blog2[j++],param,MAXBUF);
1969                         total2 = j;
1970                 }
1971         }
1972
1973         for (j = 0; j < total; j++)
1974         {
1975                 if (blog[j])
1976                 {
1977                         pars[0] = blog[j];
1978                 }
1979                 for (q = end; q < pcnt-1; q++)
1980                 {
1981                         if (parameters[q+1])
1982                         {
1983                                 pars[q-end+1] = parameters[q+1];
1984                         }
1985                 }
1986                 if ((joins) && (parameters[1]))
1987                 {
1988                         if (pcnt > 1)
1989                         {
1990                                 pars[1] = blog2[j];
1991                         }
1992                         else
1993                         {
1994                                 pars[1] = NULL;
1995                         }
1996                 }
1997                 /* repeatedly call the function with the hacked parameter list */
1998                 if ((joins) && (pcnt > 1))
1999                 {
2000                         if (pars[1])
2001                         {
2002                                 // pars[1] already set up and containing key from blog2[j]
2003                                 fn(pars,2,u);
2004                         }
2005                         else
2006                         {
2007                                 pars[1] = parameters[1];
2008                                 fn(pars,2,u);
2009                         }
2010                 }
2011                 else
2012                 {
2013                         fn(pars,pcnt-(end-start),u);
2014                 }
2015         }
2016
2017         return 1;
2018 }
2019
2020
2021
2022 void kill_link(userrec *user,const char* r)
2023 {
2024         user_hash::iterator iter = clientlist.find(user->nick);
2025
2026         char reason[MAXBUF];
2027
2028         strncpy(reason,r,MAXBUF);
2029
2030         if (strlen(reason)>MAXQUIT)
2031         {
2032                 reason[MAXQUIT-1] = '\0';
2033         }
2034
2035         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2036         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2037         log(DEBUG,"closing fd %d",user->fd);
2038
2039         /* bugfix, cant close() a nonblocking socket (sux!) */
2040         if (user->registered == 7) {
2041                 FOREACH_MOD OnUserQuit(user);
2042                 WriteCommonExcept(user,"QUIT :%s",reason);
2043
2044                 // Q token must go to ALL servers!!!
2045                 char buffer[MAXBUF];
2046                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2047                 NetSendToAll(buffer);
2048         }
2049
2050         /* push the socket on a stack of sockets due to be closed at the next opportunity
2051          * 'Client exited' is an exception to this as it means the client side has already
2052          * closed the socket, we don't need to do it.
2053          */
2054         fd_reap.push_back(user->fd);
2055
2056         bool do_purge = false;
2057
2058         if (user->registered == 7) {
2059                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2060                 AddWhoWas(user);
2061         }
2062
2063         if (iter != clientlist.end())
2064         {
2065                 log(DEBUG,"deleting user hash value %d",iter->second);
2066                 if ((iter->second) && (user->registered == 7)) {
2067                         if (iter->second) delete iter->second;
2068                 }
2069                 clientlist.erase(iter);
2070         }
2071
2072         if (user->registered == 7) {
2073                 purge_empty_chans();
2074         }
2075         //user = NULL;
2076 }
2077
2078 void kill_link_silent(userrec *user,const char* r)
2079 {
2080         user_hash::iterator iter = clientlist.find(user->nick);
2081
2082         char reason[MAXBUF];
2083
2084         strncpy(reason,r,MAXBUF);
2085
2086         if (strlen(reason)>MAXQUIT)
2087         {
2088                 reason[MAXQUIT-1] = '\0';
2089         }
2090
2091         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2092         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2093         log(DEBUG,"closing fd %d",user->fd);
2094
2095         /* bugfix, cant close() a nonblocking socket (sux!) */
2096         if (user->registered == 7) {
2097                 FOREACH_MOD OnUserQuit(user);
2098                 WriteCommonExcept(user,"QUIT :%s",reason);
2099
2100                 // Q token must go to ALL servers!!!
2101                 char buffer[MAXBUF];
2102                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2103                 NetSendToAll(buffer);
2104         }
2105
2106         /* push the socket on a stack of sockets due to be closed at the next opportunity
2107          * 'Client exited' is an exception to this as it means the client side has already
2108          * closed the socket, we don't need to do it.
2109          */
2110         fd_reap.push_back(user->fd);
2111
2112         bool do_purge = false;
2113
2114         if (iter != clientlist.end())
2115         {
2116                 log(DEBUG,"deleting user hash value %d",iter->second);
2117                 if ((iter->second) && (user->registered == 7)) {
2118                         if (iter->second) delete iter->second;
2119                 }
2120                 clientlist.erase(iter);
2121         }
2122
2123         if (user->registered == 7) {
2124                 purge_empty_chans();
2125         }
2126 }
2127
2128
2129
2130 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2131
2132 char* Passwd(userrec *user)
2133 {
2134         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2135         {
2136                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2137                 {
2138                         return i->pass;
2139                 }
2140         }
2141         return "";
2142 }
2143
2144 bool IsDenied(userrec *user)
2145 {
2146         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2147         {
2148                 if (match(user->host,i->host) && (i->type == CC_DENY))
2149                 {
2150                         return true;
2151                 }
2152         }
2153         return false;
2154 }
2155
2156
2157
2158
2159 /* sends out an error notice to all connected clients (not to be used
2160  * lightly!) */
2161
2162 void send_error(char *s)
2163 {
2164         log(DEBUG,"send_error: %s",s);
2165         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2166         {
2167                 if (isnick(i->second->nick))
2168                 {
2169                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2170                 }
2171                 else
2172                 {
2173                         // fix - unregistered connections receive ERROR, not NOTICE
2174                         Write(i->second->fd,"ERROR :%s",s);
2175                 }
2176         }
2177 }
2178
2179 void Error(int status)
2180 {
2181         signal (SIGALRM, SIG_IGN);
2182         signal (SIGPIPE, SIG_IGN);
2183         signal (SIGTERM, SIG_IGN);
2184         signal (SIGABRT, SIG_IGN);
2185         signal (SIGSEGV, SIG_IGN);
2186         signal (SIGURG, SIG_IGN);
2187         signal (SIGKILL, SIG_IGN);
2188         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2189         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2190         Exit(status);
2191 }
2192
2193
2194 int main(int argc, char **argv)
2195 {
2196         Start();
2197         srand(time(NULL));
2198         log(DEBUG,"*** InspIRCd starting up!");
2199         if (!FileExists(CONFIG_FILE))
2200         {
2201                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2202                 log(DEFAULT,"main: no config");
2203                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2204                 Exit(ERROR);
2205         }
2206         if (argc > 1) {
2207                 for (int i = 1; i < argc; i++)
2208                 {
2209                         if (!strcmp(argv[i],"-nofork")) {
2210                                 nofork = true;
2211                         }
2212                         if (!strcmp(argv[i],"-wait")) {
2213                                 sleep(6);
2214                         }
2215                         if (!strcmp(argv[i],"-nolimit")) {
2216                                 unlimitcore = true;
2217                         }
2218                 }
2219         }
2220         strlcpy(MyExecutable,argv[0],MAXBUF);
2221
2222         if (InspIRCd() == ERROR)
2223         {
2224                 log(DEFAULT,"main: daemon function bailed");
2225                 printf("ERROR: could not initialise. Shutting down.\n");
2226                 Exit(ERROR);
2227         }
2228         Exit(TRUE);
2229         return 0;
2230 }
2231
2232 template<typename T> inline string ConvToStr(const T &in)
2233 {
2234         stringstream tmp;
2235         if (!(tmp << in)) return string();
2236         return tmp.str();
2237 }
2238
2239 /* re-allocates a nick in the user_hash after they change nicknames,
2240  * returns a pointer to the new user as it may have moved */
2241
2242 userrec* ReHashNick(char* Old, char* New)
2243 {
2244         user_hash::iterator newnick;
2245         user_hash::iterator oldnick = clientlist.find(Old);
2246
2247         log(DEBUG,"ReHashNick: %s %s",Old,New);
2248
2249         if (!strcasecmp(Old,New))
2250         {
2251                 log(DEBUG,"old nick is new nick, skipping");
2252                 return oldnick->second;
2253         }
2254
2255         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2256
2257         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2258
2259         clientlist[New] = new userrec();
2260         clientlist[New] = oldnick->second;
2261         clientlist.erase(oldnick);
2262
2263         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2264
2265         return clientlist[New];
2266 }
2267
2268 /* adds or updates an entry in the whowas list */
2269 void AddWhoWas(userrec* u)
2270 {
2271         user_hash::iterator iter = whowas.find(u->nick);
2272         userrec *a = new userrec();
2273         strlcpy(a->nick,u->nick,NICKMAX);
2274         strlcpy(a->ident,u->ident,64);
2275         strlcpy(a->dhost,u->dhost,256);
2276         strlcpy(a->host,u->host,256);
2277         strlcpy(a->fullname,u->fullname,128);
2278         strlcpy(a->server,u->server,256);
2279         a->signon = u->signon;
2280
2281         /* MAX_WHOWAS:   max number of /WHOWAS items
2282          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2283          *               can be replaced by a newer one
2284          */
2285
2286         if (iter == whowas.end())
2287         {
2288                 if (whowas.size() == WHOWAS_MAX)
2289                 {
2290                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2291                         {
2292                                 // 3600 seconds in an hour ;)
2293                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2294                                 {
2295                                         if (i->second) delete i->second;
2296                                         i->second = a;
2297                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2298                                         return;
2299                                 }
2300                         }
2301                 }
2302                 else
2303                 {
2304                         log(DEBUG,"added fresh WHOWAS entry");
2305                         whowas[a->nick] = a;
2306                 }
2307         }
2308         else
2309         {
2310                 log(DEBUG,"updated WHOWAS entry");
2311                 if (iter->second) delete iter->second;
2312                 iter->second = a;
2313         }
2314 }
2315
2316
2317 /* add a client connection to the sockets list */
2318 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2319 {
2320         int i;
2321         int blocking = 1;
2322         char resolved[MAXBUF];
2323         string tempnick;
2324         char tn2[MAXBUF];
2325         user_hash::iterator iter;
2326
2327         tempnick = ConvToStr(socket) + "-unknown";
2328         sprintf(tn2,"%d-unknown",socket);
2329
2330         iter = clientlist.find(tempnick);
2331
2332         if (iter != clientlist.end()) return;
2333
2334         /*
2335          * It is OK to access the value here this way since we know
2336          * it exists, we just created it above.
2337          *
2338          * At NO other time should you access a value in a map or a
2339          * hash_map this way.
2340          */
2341         clientlist[tempnick] = new userrec();
2342
2343         NonBlocking(socket);
2344         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2345
2346         clientlist[tempnick]->fd = socket;
2347         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2348         strncpy(clientlist[tempnick]->host, host,160);
2349         strncpy(clientlist[tempnick]->dhost, host,160);
2350         strncpy(clientlist[tempnick]->server, ServerName,256);
2351         strncpy(clientlist[tempnick]->ident, "unknown",12);
2352         clientlist[tempnick]->registered = 0;
2353         clientlist[tempnick]->signon = TIME+dns_timeout;
2354         clientlist[tempnick]->lastping = 1;
2355         clientlist[tempnick]->port = port;
2356         strncpy(clientlist[tempnick]->ip,ip,32);
2357
2358         // set the registration timeout for this user
2359         unsigned long class_regtimeout = 90;
2360         int class_flood = 0;
2361
2362         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2363         {
2364                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2365                 {
2366                         class_regtimeout = (unsigned long)i->registration_timeout;
2367                         class_flood = i->flood;
2368                         clientlist[tempnick]->pingmax = i->pingtime;
2369                         break;
2370                 }
2371         }
2372
2373         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2374         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2375         clientlist[tempnick]->flood = class_flood;
2376
2377         for (int i = 0; i < MAXCHANS; i++)
2378         {
2379                 clientlist[tempnick]->chans[i].channel = NULL;
2380                 clientlist[tempnick]->chans[i].uc_modes = 0;
2381         }
2382
2383         if (clientlist.size() == MAXCLIENTS)
2384                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2385
2386
2387         char* e = matches_exception(ip);
2388         if (!e)
2389         {
2390                 char* r = matches_zline(ip);
2391                 if (r)
2392                 {
2393                         char reason[MAXBUF];
2394                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2395                         kill_link(clientlist[tempnick],reason);
2396                 }
2397         }
2398 }
2399
2400 // this function counts all users connected, wether they are registered or NOT.
2401 int usercnt(void)
2402 {
2403         return clientlist.size();
2404 }
2405
2406 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2407 int registered_usercount(void)
2408 {
2409         int c = 0;
2410         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2411         {
2412                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2413         }
2414         return c;
2415 }
2416
2417 int usercount_invisible(void)
2418 {
2419         int c = 0;
2420
2421         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2422         {
2423                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2424         }
2425         return c;
2426 }
2427
2428 int usercount_opers(void)
2429 {
2430         int c = 0;
2431
2432         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2433         {
2434                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2435         }
2436         return c;
2437 }
2438
2439 int usercount_unknown(void)
2440 {
2441         int c = 0;
2442
2443         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2444         {
2445                 if ((i->second->fd) && (i->second->registered != 7))
2446                         c++;
2447         }
2448         return c;
2449 }
2450
2451 long chancount(void)
2452 {
2453         return chanlist.size();
2454 }
2455
2456 long count_servs(void)
2457 {
2458         int c = 0;
2459         //for (int j = 0; j < 255; j++)
2460         //{
2461         //      if (servers[j] != NULL)
2462         //              c++;
2463         //}
2464         return c;
2465 }
2466
2467 long servercount(void)
2468 {
2469         return count_servs()+1;
2470 }
2471
2472 long local_count()
2473 {
2474         int c = 0;
2475         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2476         {
2477                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2478         }
2479         return c;
2480 }
2481
2482
2483 void ShowMOTD(userrec *user)
2484 {
2485         std::string WholeMOTD = "";
2486         if (!MOTD.size())
2487         {
2488                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2489                 return;
2490         }
2491         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2492         for (int i = 0; i != MOTD.size(); i++)
2493         {
2494                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2495         }
2496         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2497         // only one write operation
2498         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2499
2500 }
2501
2502 void ShowRULES(userrec *user)
2503 {
2504         if (!RULES.size())
2505         {
2506                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2507                 return;
2508         }
2509         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2510         for (int i = 0; i != RULES.size(); i++)
2511         {
2512                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2513         }
2514         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2515 }
2516
2517 /* shows the message of the day, and any other on-logon stuff */
2518 void FullConnectUser(userrec* user)
2519 {
2520         user->registered = 7;
2521         user->idle_lastmsg = TIME;
2522         log(DEBUG,"ConnectUser: %s",user->nick);
2523
2524         if (strcmp(Passwd(user),"") && (!user->haspassed))
2525         {
2526                 kill_link(user,"Invalid password");
2527                 return;
2528         }
2529         if (IsDenied(user))
2530         {
2531                 kill_link(user,"Unauthorised connection");
2532                 return;
2533         }
2534
2535         char match_against[MAXBUF];
2536         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2537         char* e = matches_exception(match_against);
2538         if (!e)
2539         {
2540                 char* r = matches_gline(match_against);
2541                 if (r)
2542                 {
2543                         char reason[MAXBUF];
2544                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2545                         kill_link_silent(user,reason);
2546                         return;
2547                 }
2548                 r = matches_kline(user->host);
2549                 if (r)
2550                 {
2551                         char reason[MAXBUF];
2552                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2553                         kill_link_silent(user,reason);
2554                         return;
2555                 }
2556         }
2557
2558         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2559         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2560         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2561         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2562         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2563         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2564         std::stringstream v;
2565         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2566         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2567         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2568         v << std::string(Network);
2569         std::string data005 = v.str();
2570         FOREACH_MOD On005Numeric(data005);
2571         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2572         // so i'd better split it :)
2573         std::stringstream out(data005);
2574         std::string token = "";
2575         std::string line5 = "";
2576         int token_counter = 0;
2577         while (!out.eof())
2578         {
2579                 out >> token;
2580                 line5 = line5 + token + " ";
2581                 token_counter++;
2582                 if ((token_counter >= 13) || (out.eof() == true))
2583                 {
2584                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2585                         line5 = "";
2586                         token_counter = 0;
2587                 }
2588         }
2589         ShowMOTD(user);
2590         FOREACH_MOD OnUserConnect(user);
2591         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2592
2593         char buffer[MAXBUF];
2594         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);
2595         NetSendToAll(buffer);
2596 }
2597
2598
2599 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2600 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2601 // registration timeout maximum seconds)
2602 bool AllModulesReportReady(userrec* user)
2603 {
2604         for (int i = 0; i <= MODCOUNT; i++)
2605         {
2606                 int res = modules[i]->OnCheckReady(user);
2607                         if (!res)
2608                                 return false;
2609         }
2610         return true;
2611 }
2612
2613 /* shows the message of the day, and any other on-logon stuff */
2614 void ConnectUser(userrec *user)
2615 {
2616         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2617         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2618         {
2619                 FullConnectUser(user);
2620         }
2621 }
2622
2623 void handle_version(char **parameters, int pcnt, userrec *user)
2624 {
2625         char Revision[] = "$Revision$";
2626
2627         char *s1 = Revision;
2628         char *savept;
2629         char *v1 = strtok_r(s1," ",&savept);
2630         s1 = savept;
2631         char *v2 = strtok_r(s1," ",&savept);
2632         s1 = savept;
2633
2634         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2635 }
2636
2637
2638 // calls a handler function for a command
2639
2640 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2641 {
2642                 for (int i = 0; i < cmdlist.size(); i++)
2643                 {
2644                         if (!strcasecmp(cmdlist[i].command,commandname))
2645                         {
2646                                 if (cmdlist[i].handler_function)
2647                                 {
2648                                         if (pcnt>=cmdlist[i].min_params)
2649                                         {
2650                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2651                                                 {
2652                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2653                                                 }
2654                                         }
2655                                 }
2656                         }
2657                 }
2658 }
2659
2660 void DoSplitEveryone()
2661 {
2662         bool go_again = true;
2663         while (go_again)
2664         {
2665                 go_again = false;
2666                 for (int i = 0; i < 32; i++)
2667                 {
2668                         if (me[i] != NULL)
2669                         {
2670                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2671                                 {
2672                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2673                                         {
2674                                                 j->routes.clear();
2675                                                 j->CloseConnection();
2676                                                 me[i]->connectors.erase(j);
2677                                                 go_again = true;
2678                                                 break;
2679                                         }
2680                                 }
2681                         }
2682                 }
2683         }
2684         log(DEBUG,"Removed server. Will remove clients...");
2685         // iterate through the userlist and remove all users on this server.
2686         // because we're dealing with a mesh, we dont have to deal with anything
2687         // "down-route" from this server (nice huh)
2688         go_again = true;
2689         char reason[MAXBUF];
2690         while (go_again)
2691         {
2692                 go_again = false;
2693                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2694                 {
2695                         if (strcasecmp(u->second->server,ServerName))
2696                         {
2697                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2698                                 kill_link(u->second,reason);
2699                                 go_again = true;
2700                                 break;
2701                         }
2702                 }
2703         }
2704 }
2705
2706
2707
2708 char islast(const char* s)
2709 {
2710         char c = '`';
2711         for (int j = 0; j < 32; j++)
2712         {
2713                 if (me[j] != NULL)
2714                 {
2715                         for (int k = 0; k < me[j]->connectors.size(); k++)
2716                         {
2717                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2718                                 {
2719                                         c = '|';
2720                                 }
2721                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2722                                 {
2723                                         c = '`';
2724                                 }
2725                         }
2726                 }
2727         }
2728         return c;
2729 }
2730
2731 long map_count(const char* s)
2732 {
2733         int c = 0;
2734         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2735         {
2736                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2737         }
2738         return c;
2739 }
2740
2741
2742 void force_nickchange(userrec* user,const char* newnick)
2743 {
2744         char nick[MAXBUF];
2745         int MOD_RESULT = 0;
2746
2747         strcpy(nick,"");
2748
2749         FOREACH_RESULT(OnUserPreNick(user,newnick));
2750         if (MOD_RESULT) {
2751                 kill_link(user,"Nickname collision");
2752                 return;
2753         }
2754         if (matches_qline(newnick))
2755         {
2756                 kill_link(user,"Nickname collision");
2757                 return;
2758         }
2759
2760         if (user)
2761         {
2762                 if (newnick)
2763                 {
2764                         strncpy(nick,newnick,MAXBUF);
2765                 }
2766                 if (user->registered == 7)
2767                 {
2768                         char* pars[1];
2769                         pars[0] = nick;
2770                         handle_nick(pars,1,user);
2771                 }
2772         }
2773 }
2774
2775
2776 int process_parameters(char **command_p,char *parameters)
2777 {
2778         int i = 0;
2779         int j = 0;
2780         int q = 0;
2781         q = strlen(parameters);
2782         if (!q)
2783         {
2784                 /* no parameters, command_p invalid! */
2785                 return 0;
2786         }
2787         if (parameters[0] == ':')
2788         {
2789                 command_p[0] = parameters+1;
2790                 return 1;
2791         }
2792         if (q)
2793         {
2794                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2795                 {
2796                         /* only one parameter */
2797                         command_p[0] = parameters;
2798                         if (parameters[0] == ':')
2799                         {
2800                                 if (strchr(parameters,' ') != NULL)
2801                                 {
2802                                         command_p[0]++;
2803                                 }
2804                         }
2805                         return 1;
2806                 }
2807         }
2808         command_p[j++] = parameters;
2809         for (int i = 0; i <= q; i++)
2810         {
2811                 if (parameters[i] == ' ')
2812                 {
2813                         command_p[j++] = parameters+i+1;
2814                         parameters[i] = '\0';
2815                         if (command_p[j-1][0] == ':')
2816                         {
2817                                 *command_p[j-1]++; /* remove dodgy ":" */
2818                                 break;
2819                                 /* parameter like this marks end of the sequence */
2820                         }
2821                 }
2822         }
2823         return j; /* returns total number of items in the list */
2824 }
2825
2826 void process_command(userrec *user, char* cmd)
2827 {
2828         char *parameters;
2829         char *command;
2830         char *command_p[127];
2831         char p[MAXBUF], temp[MAXBUF];
2832         int i, j, items, cmd_found;
2833
2834         for (int i = 0; i < 127; i++)
2835                 command_p[i] = NULL;
2836
2837         if (!user)
2838         {
2839                 return;
2840         }
2841         if (!cmd)
2842         {
2843                 return;
2844         }
2845         if (!strcmp(cmd,""))
2846         {
2847                 return;
2848         }
2849
2850         int total_params = 0;
2851         if (strlen(cmd)>2)
2852         {
2853                 for (int q = 0; q < strlen(cmd)-1; q++)
2854                 {
2855                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2856                         {
2857                                 total_params++;
2858                                 // found a 'trailing', we dont count them after this.
2859                                 break;
2860                         }
2861                         if (cmd[q] == ' ')
2862                                 total_params++;
2863                 }
2864         }
2865
2866         // another phidjit bug...
2867         if (total_params > 126)
2868         {
2869                 *(strchr(cmd,' ')) = '\0';
2870                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2871                 return;
2872         }
2873
2874         strlcpy(temp,cmd,MAXBUF);
2875
2876         std::string tmp = cmd;
2877         for (int i = 0; i <= MODCOUNT; i++)
2878         {
2879                 std::string oldtmp = tmp;
2880                 modules[i]->OnServerRaw(tmp,true,user);
2881                 if (oldtmp != tmp)
2882                 {
2883                         log(DEBUG,"A Module changed the input string!");
2884                         log(DEBUG,"New string: %s",tmp.c_str());
2885                         log(DEBUG,"Old string: %s",oldtmp.c_str());
2886                         break;
2887                 }
2888         }
2889         strlcpy(cmd,tmp.c_str(),MAXBUF);
2890         strlcpy(temp,cmd,MAXBUF);
2891
2892         if (!strchr(cmd,' '))
2893         {
2894                 /* no parameters, lets skip the formalities and not chop up
2895                  * the string */
2896                 log(DEBUG,"About to preprocess command with no params");
2897                 items = 0;
2898                 command_p[0] = NULL;
2899                 parameters = NULL;
2900                 for (int i = 0; i <= strlen(cmd); i++)
2901                 {
2902                         cmd[i] = toupper(cmd[i]);
2903                 }
2904                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
2905                 command = cmd;
2906         }
2907         else
2908         {
2909                 strcpy(cmd,"");
2910                 j = 0;
2911                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
2912                 for (int i = 0; i < strlen(temp); i++)
2913                 {
2914                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
2915                         {
2916                                 cmd[j++] = temp[i];
2917                                 cmd[j] = 0;
2918                         }
2919                 }
2920                 /* split the full string into a command plus parameters */
2921                 parameters = p;
2922                 strcpy(p," ");
2923                 command = cmd;
2924                 if (strchr(cmd,' '))
2925                 {
2926                         for (int i = 0; i <= strlen(cmd); i++)
2927                         {
2928                                 /* capitalise the command ONLY, leave params intact */
2929                                 cmd[i] = toupper(cmd[i]);
2930                                 /* are we nearly there yet?! :P */
2931                                 if (cmd[i] == ' ')
2932                                 {
2933                                         command = cmd;
2934                                         parameters = cmd+i+1;
2935                                         cmd[i] = '\0';
2936                                         break;
2937                                 }
2938                         }
2939                 }
2940                 else
2941                 {
2942                         for (int i = 0; i <= strlen(cmd); i++)
2943                         {
2944                                 cmd[i] = toupper(cmd[i]);
2945                         }
2946                 }
2947
2948         }
2949         cmd_found = 0;
2950
2951         if (strlen(command)>MAXCOMMAND)
2952         {
2953                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
2954                 return;
2955         }
2956
2957         for (int x = 0; x < strlen(command); x++)
2958         {
2959                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
2960                 {
2961                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
2962                         {
2963                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
2964                                 {
2965                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
2966                                         return;
2967                                 }
2968                         }
2969                 }
2970         }
2971
2972         for (int i = 0; i != cmdlist.size(); i++)
2973         {
2974                 if (strcmp(cmdlist[i].command,""))
2975                 {
2976                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
2977                         {
2978                                 log(DEBUG,"Found matching command");
2979
2980                                 if (parameters)
2981                                 {
2982                                         if (strcmp(parameters,""))
2983                                         {
2984                                                 items = process_parameters(command_p,parameters);
2985                                         }
2986                                         else
2987                                         {
2988                                                 items = 0;
2989                                                 command_p[0] = NULL;
2990                                         }
2991                                 }
2992                                 else
2993                                 {
2994                                         items = 0;
2995                                         command_p[0] = NULL;
2996                                 }
2997
2998                                 if (user)
2999                                 {
3000                                         log(DEBUG,"Processing command");
3001
3002                                         /* activity resets the ping pending timer */
3003                                         user->nping = TIME + user->pingmax;
3004                                         if ((items) < cmdlist[i].min_params)
3005                                         {
3006                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3007                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3008                                                 return;
3009                                         }
3010                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3011                                         {
3012                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3013                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3014                                                 cmd_found = 1;
3015                                                 return;
3016                                         }
3017                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3018                                         {
3019                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3020                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3021                                                 cmd_found = 1;
3022                                                 return;
3023                                         }
3024                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3025                                          * deny command! */
3026                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3027                                         {
3028                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3029                                                 {
3030                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3031                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3032                                                         return;
3033                                                 }
3034                                         }
3035                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3036                                         {
3037                                                 char* mycmd;
3038                                                 char* savept2;
3039                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3040                                                 while (mycmd)
3041                                                 {
3042                                                         if (!strcasecmp(mycmd,command))
3043                                                         {
3044                                                                 // command is disabled!
3045                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3046                                                                 return;
3047                                                         }
3048                                                         mycmd = strtok_r(NULL," ",&savept2);
3049                                                 }
3050
3051
3052                                         }
3053                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3054                                         {
3055                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3056                                                 if (cmdlist[i].handler_function)
3057                                                 {
3058
3059                                                         /* ikky /stats counters */
3060                                                         if (temp)
3061                                                         {
3062                                                                 if (user)
3063                                                                 {
3064                                                                         user->bytes_in += strlen(temp);
3065                                                                         user->cmds_in++;
3066                                                                         user->bytes_out+=strlen(temp);
3067                                                                         user->cmds_out++;
3068                                                                 }
3069                                                                 cmdlist[i].use_count++;
3070                                                                 cmdlist[i].total_bytes+=strlen(temp);
3071                                                         }
3072
3073                                                         int MOD_RESULT = 0;
3074                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3075                                                         if (MOD_RESULT == 1) {
3076                                                                 return;
3077                                                         }
3078
3079                                                         /* WARNING: nothing may come after the
3080                                                          * command handler call, as the handler
3081                                                          * may free the user structure! */
3082
3083                                                         cmdlist[i].handler_function(command_p,items,user);
3084                                                 }
3085                                                 return;
3086                                         }
3087                                         else
3088                                         {
3089                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3090                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3091                                                 return;
3092                                         }
3093                                 }
3094                                 cmd_found = 1;
3095                         }
3096                 }
3097         }
3098         if ((!cmd_found) && (user))
3099         {
3100                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3101                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3102         }
3103 }
3104
3105
3106 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3107 {
3108         command_t comm;
3109         /* create the command and push it onto the table */
3110         strlcpy(comm.command,cmd,MAXBUF);
3111         strlcpy(comm.source,source,MAXBUF);
3112         comm.handler_function = f;
3113         comm.flags_needed = flags;
3114         comm.min_params = minparams;
3115         comm.use_count = 0;
3116         comm.total_bytes = 0;
3117         cmdlist.push_back(comm);
3118         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3119 }
3120
3121 bool removecommands(const char* source)
3122 {
3123         bool go_again = true;
3124         while (go_again)
3125         {
3126                 go_again = false;
3127                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3128                 {
3129                         if (!strcmp(i->source,source))
3130                         {
3131                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3132                                 cmdlist.erase(i);
3133                                 go_again = true;
3134                                 break;
3135                         }
3136                 }
3137         }
3138         return true;
3139 }
3140
3141 void SetupCommandTable(void)
3142 {
3143         createcommand("USER",handle_user,0,4,"<core>");
3144         createcommand("NICK",handle_nick,0,1,"<core>");
3145         createcommand("QUIT",handle_quit,0,0,"<core>");
3146         createcommand("VERSION",handle_version,0,0,"<core>");
3147         createcommand("PING",handle_ping,0,1,"<core>");
3148         createcommand("PONG",handle_pong,0,1,"<core>");
3149         createcommand("ADMIN",handle_admin,0,0,"<core>");
3150         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3151         createcommand("INFO",handle_info,0,0,"<core>");
3152         createcommand("TIME",handle_time,0,0,"<core>");
3153         createcommand("WHOIS",handle_whois,0,1,"<core>");
3154         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3155         createcommand("NOTICE",handle_notice,0,2,"<core>");
3156         createcommand("JOIN",handle_join,0,1,"<core>");
3157         createcommand("NAMES",handle_names,0,0,"<core>");
3158         createcommand("PART",handle_part,0,1,"<core>");
3159         createcommand("KICK",handle_kick,0,2,"<core>");
3160         createcommand("MODE",handle_mode,0,1,"<core>");
3161         createcommand("TOPIC",handle_topic,0,1,"<core>");
3162         createcommand("WHO",handle_who,0,1,"<core>");
3163         createcommand("MOTD",handle_motd,0,0,"<core>");
3164         createcommand("RULES",handle_rules,0,0,"<core>");
3165         createcommand("OPER",handle_oper,0,2,"<core>");
3166         createcommand("LIST",handle_list,0,0,"<core>");
3167         createcommand("DIE",handle_die,'o',1,"<core>");
3168         createcommand("RESTART",handle_restart,'o',1,"<core>");
3169         createcommand("KILL",handle_kill,'o',2,"<core>");
3170         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3171         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3172         createcommand("STATS",handle_stats,0,1,"<core>");
3173         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3174         createcommand("AWAY",handle_away,0,0,"<core>");
3175         createcommand("ISON",handle_ison,0,0,"<core>");
3176         createcommand("SUMMON",handle_summon,0,0,"<core>");
3177         createcommand("USERS",handle_users,0,0,"<core>");
3178         createcommand("INVITE",handle_invite,0,2,"<core>");
3179         createcommand("PASS",handle_pass,0,1,"<core>");
3180         createcommand("TRACE",handle_trace,'o',0,"<core>");
3181         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3182         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3183         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3184         createcommand("MODULES",handle_modules,0,0,"<core>");
3185         createcommand("LINKS",handle_links,0,0,"<core>");
3186         createcommand("MAP",handle_map,0,0,"<core>");
3187         createcommand("KLINE",handle_kline,'o',1,"<core>");
3188         createcommand("GLINE",handle_gline,'o',1,"<core>");
3189         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3190         createcommand("QLINE",handle_qline,'o',1,"<core>");
3191         createcommand("ELINE",handle_eline,'o',1,"<core>");
3192         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3193         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3194         createcommand("SERVER",handle_server,0,0,"<core>");
3195 }
3196
3197 void process_buffer(const char* cmdbuf,userrec *user)
3198 {
3199         if (!user)
3200         {
3201                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3202                 return;
3203         }
3204         char cmd[MAXBUF];
3205         int i;
3206         if (!cmdbuf)
3207         {
3208                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3209                 return;
3210         }
3211         if (!strcmp(cmdbuf,""))
3212         {
3213                 return;
3214         }
3215         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3216
3217         strlcpy(cmd,cmdbuf,MAXBUF);
3218         if (!strcmp(cmd,""))
3219         {
3220                 return;
3221         }
3222         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3223         {
3224                 cmd[strlen(cmd)-1] = '\0';
3225         }
3226         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3227         {
3228                 cmd[strlen(cmd)-1] = '\0';
3229         }
3230
3231         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3232         {
3233                 cmd[strlen(cmd)-1] = '\0';
3234         }
3235
3236         if (!strcmp(cmd,""))
3237         {
3238                 return;
3239         }
3240         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3241         tidystring(cmd);
3242         if ((user) && (cmd))
3243         {
3244                 process_command(user,cmd);
3245         }
3246 }
3247
3248 void DoSync(serverrec* serv, char* tcp_host)
3249 {
3250         char data[MAXBUF];
3251         log(DEBUG,"Sending sync");
3252         // send start of sync marker: Y <timestamp>
3253         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3254         // except the ones its receiving it from.
3255         snprintf(data,MAXBUF,"Y %d",TIME);
3256         serv->SendPacket(data,tcp_host);
3257         // send users and channels
3258         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3259         {
3260                 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);
3261                 serv->SendPacket(data,tcp_host);
3262                 if (strchr(u->second->modes,'o'))
3263                 {
3264                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3265                         serv->SendPacket(data,tcp_host);
3266                 }
3267                 for (int i = 0; i <= MODCOUNT; i++)
3268                 {
3269                         string_list l = modules[i]->OnUserSync(u->second);
3270                         for (int j = 0; j < l.size(); j++)
3271                         {
3272                                 strlcpy(data,l[j].c_str(),MAXBUF);
3273                                 serv->SendPacket(data,tcp_host);
3274                         }
3275                 }
3276                 if (strcmp(chlist(u->second),""))
3277                 {
3278                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3279                         serv->SendPacket(data,tcp_host);
3280                 }
3281         }
3282         // send channel modes, topics etc...
3283         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3284         {
3285                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3286                 serv->SendPacket(data,tcp_host);
3287                 for (int i = 0; i <= MODCOUNT; i++)
3288                 {
3289                         string_list l = modules[i]->OnChannelSync(c->second);
3290                         for (int j = 0; j < l.size(); j++)
3291                         {
3292                                 strlcpy(data,l[j].c_str(),MAXBUF);
3293                                 serv->SendPacket(data,tcp_host);
3294                         }
3295                 }
3296                 if (strcmp(c->second->topic,""))
3297                 {
3298                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3299                         serv->SendPacket(data,tcp_host);
3300                 }
3301                 // send current banlist
3302
3303                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3304                 {
3305                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
3306                         serv->SendPacket(data,tcp_host);
3307                 }
3308         }
3309         // sync global zlines, glines, etc
3310         sync_xlines(serv,tcp_host);
3311
3312         for (int j = 0; j < 32; j++)
3313         {
3314                 if (me[j] != NULL)
3315                 {
3316                         for (int k = 0; k < me[j]->connectors.size(); k++)
3317                         {
3318                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3319                                 {
3320                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3321                                         serv->SendPacket(data,tcp_host);
3322                                         NetSendMyRoutingTable();
3323                                 }
3324                         }
3325                 }
3326         }
3327
3328         snprintf(data,MAXBUF,"F %d",TIME);
3329         serv->SendPacket(data,tcp_host);
3330         log(DEBUG,"Sent sync");
3331         // ircd sends its serverlist after the end of sync here
3332 }
3333
3334
3335 void NetSendMyRoutingTable()
3336 {
3337         // send out a line saying what is reachable to us.
3338         // E.g. if A is linked to B C and D, send out:
3339         // $ A B C D
3340         // if its only linked to B and D send out:
3341         // $ A B D
3342         // if it has no links, dont even send out the line at all.
3343         char buffer[MAXBUF];
3344         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3345         bool sendit = false;
3346         for (int i = 0; i < 32; i++)
3347         {
3348                 if (me[i] != NULL)
3349                 {
3350                         for (int j = 0; j < me[i]->connectors.size(); j++)
3351                         {
3352                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3353                                 {
3354                                         strlcat(buffer," ",MAXBUF);
3355                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3356                                         sendit = true;
3357                                 }
3358                         }
3359                 }
3360         }
3361         if (sendit)
3362                 NetSendToAll(buffer);
3363 }
3364
3365
3366 void DoSplit(const char* params)
3367 {
3368         bool go_again = true;
3369         while (go_again)
3370         {
3371                 go_again = false;
3372                 for (int i = 0; i < 32; i++)
3373                 {
3374                         if (me[i] != NULL)
3375                         {
3376                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3377                                 {
3378                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3379                                         {
3380                                                 j->routes.clear();
3381                                                 j->CloseConnection();
3382                                                 me[i]->connectors.erase(j);
3383                                                 go_again = true;
3384                                                 break;
3385                                         }
3386                                 }
3387                         }
3388                 }
3389         }
3390         log(DEBUG,"Removed server. Will remove clients...");
3391         // iterate through the userlist and remove all users on this server.
3392         // because we're dealing with a mesh, we dont have to deal with anything
3393         // "down-route" from this server (nice huh)
3394         go_again = true;
3395         char reason[MAXBUF];
3396         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3397         while (go_again)
3398         {
3399                 go_again = false;
3400                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3401                 {
3402                         if (!strcasecmp(u->second->server,params))
3403                         {
3404                                 kill_link(u->second,reason);
3405                                 go_again = true;
3406                                 break;
3407                         }
3408                 }
3409         }
3410 }
3411
3412 // removes a server. Will NOT remove its users!
3413
3414 void RemoveServer(const char* name)
3415 {
3416         bool go_again = true;
3417         while (go_again)
3418         {
3419                 go_again = false;
3420                 for (int i = 0; i < 32; i++)
3421                 {
3422                         if (me[i] != NULL)
3423                         {
3424                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3425                                 {
3426                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3427                                         {
3428                                                 j->routes.clear();
3429                                                 j->CloseConnection();
3430                                                 me[i]->connectors.erase(j);
3431                                                 go_again = true;
3432                                                 break;
3433                                         }
3434                                 }
3435                         }
3436                 }
3437         }
3438 }
3439
3440
3441 int reap_counter = 0;
3442 char MODERR[MAXBUF];
3443
3444 char* ModuleError()
3445 {
3446         return MODERR;
3447 }
3448
3449 void erase_factory(int j)
3450 {
3451         int v = 0;
3452         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3453         {
3454                 if (v == j)
3455                 {
3456                         factory.erase(t);
3457                         factory.push_back(NULL);
3458                         return;
3459                 }
3460                 v++;
3461         }
3462 }
3463
3464 void erase_module(int j)
3465 {
3466         int v = 0;
3467         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3468         {
3469                 if (v == j)
3470                 {
3471                         delete *m;
3472                         modules.erase(m);
3473                         modules.push_back(NULL);
3474                         break;
3475                 }
3476                 v++;
3477         }
3478         int v2 = 0;
3479         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3480         {
3481                 if (v2 == j)
3482                 {
3483                        module_names.erase(v);
3484                        break;
3485                 }
3486                 v2++;
3487         }
3488
3489 }
3490
3491 bool UnloadModule(const char* filename)
3492 {
3493         for (int j = 0; j != module_names.size(); j++)
3494         {
3495                 if (module_names[j] == std::string(filename))
3496                 {
3497                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3498                         {
3499                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3500                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3501                                 return false;
3502                         }
3503                         // found the module
3504                         log(DEBUG,"Deleting module...");
3505                         erase_module(j);
3506                         log(DEBUG,"Erasing module entry...");
3507                         erase_factory(j);
3508                         log(DEBUG,"Removing dependent commands...");
3509                         removecommands(filename);
3510                         log(DEFAULT,"Module %s unloaded",filename);
3511                         MODCOUNT--;
3512                         return true;
3513                 }
3514         }
3515         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3516         snprintf(MODERR,MAXBUF,"Module not loaded");
3517         return false;
3518 }
3519
3520 bool DirValid(char* dirandfile)
3521 {
3522         char work[MAXBUF];
3523         strlcpy(work,dirandfile,MAXBUF);
3524         int p = strlen(work);
3525         // we just want the dir
3526         while (strlen(work))
3527         {
3528                 if (work[p] == '/')
3529                 {
3530                         work[p] = '\0';
3531                         break;
3532                 }
3533                 work[p--] = '\0';
3534         }
3535         log(DEBUG,"Dir valid: %s",work);
3536         char buffer[MAXBUF], otherdir[MAXBUF];
3537         // Get the current working directory
3538         if( getcwd( buffer, MAXBUF ) == NULL )
3539                 return false;
3540         chdir(work);
3541         if( getcwd( otherdir, MAXBUF ) == NULL )
3542                 return false;
3543         chdir(buffer);
3544         log(DEBUG,"Dir is really: %s",otherdir);
3545         if (strlen(otherdir) >= strlen(work))
3546         {
3547                 otherdir[strlen(work)] = '\0';
3548                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3549                 if (!strcmp(otherdir,work))
3550                 {
3551                         log(DEBUG,"Match ok");
3552                         return true;
3553                 }
3554                 log(DEBUG,"No match");
3555                 return false;
3556         }
3557         else return false;
3558 }
3559
3560 bool LoadModule(const char* filename)
3561 {
3562         char modfile[MAXBUF];
3563         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3564         if (!DirValid(modfile))
3565         {
3566                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3567                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3568                 return false;
3569         }
3570         log(DEBUG,"Loading module: %s",modfile);
3571         if (FileExists(modfile))
3572         {
3573                 for (int j = 0; j < module_names.size(); j++)
3574                 {
3575                         if (module_names[j] == std::string(filename))
3576                         {
3577                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3578                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3579                                 return false;
3580                         }
3581                 }
3582                 ircd_module* a = new ircd_module(modfile);
3583                 factory[MODCOUNT+1] = a;
3584                 if (factory[MODCOUNT+1]->LastError())
3585                 {
3586                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3587                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3588                         MODCOUNT--;
3589                         return false;
3590                 }
3591                 if (factory[MODCOUNT+1]->factory)
3592                 {
3593                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3594                         modules[MODCOUNT+1] = m;
3595                         /* save the module and the module's classfactory, if
3596                          * this isnt done, random crashes can occur :/ */
3597                         module_names.push_back(filename);
3598                 }
3599                 else
3600                 {
3601                         log(DEFAULT,"Unable to load %s",modfile);
3602                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3603                         return false;
3604                 }
3605         }
3606         else
3607         {
3608                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3609                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3610                 return false;
3611         }
3612         MODCOUNT++;
3613         return true;
3614 }
3615
3616 int InspIRCd(void)
3617 {
3618         struct sockaddr_in client,server;
3619         char addrs[MAXBUF][255];
3620         int incomingSockfd, result = TRUE;
3621         socklen_t length;
3622         int count = 0;
3623         int selectResult = 0, selectResult2 = 0;
3624         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3625         char resolvedHost[MAXBUF];
3626         fd_set selectFds;
3627         timeval tv;
3628
3629         log_file = fopen("ircd.log","a+");
3630         if (!log_file)
3631         {
3632                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3633                 Exit(ERROR);
3634         }
3635
3636         log(DEBUG,"InspIRCd: startup: begin");
3637         log(DEBUG,"$Id$");
3638         if (geteuid() == 0)
3639         {
3640                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3641                 Exit(ERROR);
3642                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3643         }
3644         SetupCommandTable();
3645         log(DEBUG,"InspIRCd: startup: default command table set up");
3646
3647         ReadConfig(true,NULL);
3648         if (strcmp(DieValue,""))
3649         {
3650                 printf("WARNING: %s\n\n",DieValue);
3651                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3652                 exit(0);
3653         }
3654         log(DEBUG,"InspIRCd: startup: read config");
3655
3656         int count2 = 0, count3 = 0;
3657
3658         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3659         {
3660                 ConfValue("bind","port",count,configToken,&config_f);
3661                 ConfValue("bind","address",count,Addr,&config_f);
3662                 ConfValue("bind","type",count,Type,&config_f);
3663                 if (!strcmp(Type,"servers"))
3664                 {
3665                         char Default[MAXBUF];
3666                         strcpy(Default,"no");
3667                         ConfValue("bind","default",count,Default,&config_f);
3668                         if (strchr(Default,'y'))
3669                         {
3670                                 defaultRoute = count3;
3671                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3672                         }
3673                         me[count3] = new serverrec(ServerName,100L,false);
3674                         if (!me[count3]->CreateListener(Addr,atoi(configToken)))
3675                         {
3676                                 log(DEFAULT,"Error! Failed to bind port %d",atoi(configToken));
3677                         }
3678                         else
3679                         {
3680                                 count3++;
3681                         }
3682                 }
3683                 else
3684                 {
3685                         ports[count2] = atoi(configToken);
3686                         strlcpy(addrs[count2],Addr,256);
3687                         count2++;
3688                 }
3689                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3690         }
3691         portCount = count2;
3692         UDPportCount = count3;
3693
3694         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3695
3696         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
3697
3698         printf("\n");
3699
3700         /* BugFix By Craig! :p */
3701         MODCOUNT = -1;
3702         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
3703         {
3704                 ConfValue("module","name",count2,configToken,&config_f);
3705                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3706                 if (!LoadModule(configToken))
3707                 {
3708                         log(DEBUG,"Exiting due to a module loader error.");
3709                         printf("There was an error loading a module: %s\n",ModuleError());
3710                         Exit(0);
3711                 }
3712         }
3713         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3714
3715         printf("\nInspIRCd is now running!\n");
3716
3717         startup_time = time(NULL);
3718
3719         if (nofork)
3720         {
3721                 log(VERBOSE,"Not forking as -nofork was specified");
3722         }
3723         else
3724         {
3725                 if (DaemonSeed() == ERROR)
3726                 {
3727                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3728                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3729                         Exit(ERROR);
3730                 }
3731         }
3732
3733         char PID[MAXBUF];
3734         ConfValue("pid","file",0,PID,&config_f);
3735         WritePID(PID);
3736
3737
3738         /* setup select call */
3739         FD_ZERO(&selectFds);
3740         log(DEBUG,"InspIRCd: startup: zero selects");
3741         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3742
3743         for (count = 0; count < portCount; count++)
3744         {
3745                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3746                 {
3747                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3748                         return(ERROR);
3749                 }
3750                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3751                 {
3752                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3753                 }
3754                 else    /* well we at least bound to one socket so we'll continue */
3755                 {
3756                         boundPortCount++;
3757                 }
3758         }
3759
3760         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3761
3762         /* if we didn't bind to anything then abort */
3763         if (boundPortCount == 0)
3764         {
3765                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3766                 return (ERROR);
3767         }
3768
3769
3770         length = sizeof (client);
3771         char udp_msg[MAXBUF], tcp_host[MAXBUF];
3772
3773         fd_set serverfds;
3774         timeval tvs;
3775         tvs.tv_usec = 7000L;
3776         tvs.tv_sec = 0;
3777         tv.tv_sec = 0;
3778         tv.tv_usec = 7000L;
3779         char data[10240];
3780         timeval tval;
3781         fd_set sfd;
3782         tval.tv_usec = 7000L;
3783         tval.tv_sec = 0;
3784         int total_in_this_set = 0;
3785         int v = 0;
3786         bool expire_run = false;
3787
3788         /* main loop, this never returns */
3789         for (;;)
3790         {
3791 #ifdef _POSIX_PRIORITY_SCHEDULING
3792                 sched_yield();
3793 #endif
3794                 // poll dns queue
3795                 dns_poll();
3796                 FD_ZERO(&sfd);
3797
3798                 // we only read time() once per iteration rather than tons of times!
3799                 TIME = time(NULL);
3800
3801                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3802                 // them in a list, then reap the list every second or so.
3803                 if (((TIME % 5) == 0) && (!expire_run))
3804                 {
3805                         expire_lines();
3806                         FOREACH_MOD OnBackgroundTimer(TIME);
3807                         expire_run = true;
3808                         continue;
3809                 }
3810                 if ((TIME % 5) == 1)
3811                         expire_run = false;
3812                 if (reap_counter>300)
3813                 {
3814                         if (fd_reap.size() > 0)
3815                         {
3816                                 for( int n = 0; n < fd_reap.size(); n++)
3817                                 {
3818                                         if ((fd_reap[n] > -1))
3819                                         {
3820                                                 close(fd_reap[n]);
3821                                                 shutdown (fd_reap[n],2);
3822                                         }
3823                                 }
3824                         }
3825                         fd_reap.clear();
3826                         reap_counter=0;
3827                 }
3828                 reap_counter++;
3829
3830                 // fix by brain - this must be below any manipulation of the hashmap by modules
3831                 user_hash::iterator count2 = clientlist.begin();
3832
3833                 FD_ZERO(&serverfds);
3834
3835                 for (int x = 0; x != UDPportCount; x++)
3836                 {
3837                         if (me[x])
3838                                 FD_SET(me[x]->fd, &serverfds);
3839                 }
3840
3841                 // serverFds timevals went here
3842
3843                 tvs.tv_usec = 7000L;
3844                 tvs.tv_sec = 0;
3845                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3846                 if (servresult > 0)
3847                 {
3848                         for (int x = 0; x != UDPportCount; x++)
3849                         {
3850                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3851                                 {
3852                                         char remotehost[MAXBUF],resolved[MAXBUF];
3853                                         length = sizeof (client);
3854                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3855                                         if (incomingSockfd != -1)
3856                                         {
3857                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3858                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3859                                                 {
3860                                                         strlcpy(resolved,remotehost,MAXBUF);
3861                                                 }
3862                                                 // add to this connections ircd_connector vector
3863                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3864                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3865                                         }
3866                                 }
3867                         }
3868                 }
3869
3870                 for (int x = 0; x < UDPportCount; x++)
3871                 {
3872                         std::deque<std::string> msgs;
3873                         msgs.clear();
3874                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3875                         {
3876                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3877                                 {
3878                                         char udp_msg[MAXBUF];
3879                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3880                                         log(DEBUG,"Processing: %s",udp_msg);
3881                                         if (strlen(udp_msg)<1)
3882                                         {
3883                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3884                                                 break;
3885                                         }
3886                                         // during a netburst, send all data to all other linked servers
3887                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3888                                         {
3889                                                 if (is_uline(tcp_host))
3890                                                 {
3891                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3892                                                         {
3893                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3894                                                         }
3895                                                 }
3896                                                 else
3897                                                         NetSendToAllExcept(tcp_host,udp_msg);
3898                                         }
3899                                         std::string msg = udp_msg;
3900                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
3901                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
3902                                         handle_link_packet(udp_msg, tcp_host, me[x]);
3903                                 }
3904                                 goto label;
3905                         }
3906                 }
3907
3908
3909         while (count2 != clientlist.end())
3910         {
3911                 FD_ZERO(&sfd);
3912                 total_in_this_set = 0;
3913
3914                 user_hash::iterator xcount = count2;
3915                 user_hash::iterator endingiter = count2;
3916
3917                 if (count2 == clientlist.end()) break;
3918
3919                 if (count2->second)
3920                 if (count2->second->fd != 0)
3921                 {
3922                         // assemble up to 64 sockets into an fd_set
3923                         // to implement a pooling mechanism.
3924                         //
3925                         // This should be up to 64x faster than the
3926                         // old implementation.
3927                         while (total_in_this_set < 64)
3928                         {
3929                                 if (count2 != clientlist.end())
3930                                 {
3931                                         // we don't check the state of remote users.
3932                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
3933                                         {
3934                                                 FD_SET (count2->second->fd, &sfd);
3935
3936                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
3937                                                 // their connection class.
3938                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
3939                                                 {
3940                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
3941                                                         kill_link(count2->second,"Registration timeout");
3942                                                         goto label;
3943                                                 }
3944                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
3945                                                 {
3946                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
3947                                                         count2->second->dns_done = true;
3948                                                         FullConnectUser(count2->second);
3949                                                         goto label;
3950                                                 }
3951                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
3952                                                 {
3953                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
3954                                                         FullConnectUser(count2->second);
3955                                                         goto label;
3956                                                 }
3957                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
3958                                                 {
3959                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
3960                                                         {
3961                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
3962                                                                 kill_link(count2->second,"Ping timeout");
3963                                                                 goto label;
3964                                                         }
3965                                                         Write(count2->second->fd,"PING :%s",ServerName);
3966                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
3967                                                         count2->second->lastping = 0;
3968                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
3969                                                 }
3970                                         }
3971                                         count2++;
3972                                         total_in_this_set++;
3973                                 }
3974                                 else break;
3975                         }
3976
3977                         endingiter = count2;
3978                         count2 = xcount; // roll back to where we were
3979
3980                         v = 0;
3981
3982                         // tvals defined here
3983
3984                         tval.tv_usec = 7000L;
3985                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
3986
3987                         // now loop through all of the items in this pool if any are waiting
3988                         //if (selectResult2 > 0)
3989                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
3990                         {
3991
3992 #ifdef _POSIX_PRIORITY_SCHEDULING
3993                                 sched_yield();
3994 #endif
3995
3996                                 result = EAGAIN;
3997                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
3998                                 {
3999                                         memset(data, 0, 10240);
4000                                         result = read(count2a->second->fd, data, 10240);
4001
4002                                         if (result)
4003                                         {
4004                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4005                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4006                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4007                                                 for (int checker = 0; checker < result; checker++)
4008                                                 {
4009                                                         if ((data[checker] == 0) || (data[checker] == 7))
4010                                                                 data[checker] = ' ';
4011                                                 }
4012                                                 userrec* current = count2a->second;
4013                                                 int currfd = current->fd;
4014                                                 char* l = strtok(data,"\n");
4015                                                 int floodlines = 0;
4016                                                 while (l)
4017                                                 {
4018                                                         floodlines++;
4019                                                         if ((floodlines > current->flood) && (current->flood != 0))
4020                                                         {
4021                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4022                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4023                                                                 kill_link(current,"Excess flood");
4024                                                                 goto label;
4025                                                         }
4026                                                         char sanitized[NetBufferSize];
4027                                                         memset(sanitized, 0, NetBufferSize);
4028                                                         int ptt = 0;
4029                                                         for (int pt = 0; pt < strlen(l); pt++)
4030                                                         {
4031                                                                 if (l[pt] != '\r')
4032                                                                 {
4033                                                                         sanitized[ptt++] = l[pt];
4034                                                                 }
4035                                                         }
4036                                                         sanitized[ptt] = '\0';
4037                                                         if (strlen(sanitized))
4038                                                         {
4039
4040
4041                                                                 // we're gonna re-scan to check if the nick is gone, after every
4042                                                                 // command - if it has, we're gonna bail
4043                                                                 bool find_again = false;
4044                                                                 process_buffer(sanitized,current);
4045
4046                                                                 // look for the user's record in case it's changed
4047                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4048                                                                 {
4049                                                                         if (c2->second->fd == currfd)
4050                                                                         {
4051                                                                                 // found again, update pointer
4052                                                                                 current == c2->second;
4053                                                                                 find_again = true;
4054                                                                                 break;
4055                                                                         }
4056                                                                 }
4057                                                                 if (!find_again)
4058                                                                         goto label;
4059
4060                                                         }
4061                                                         l = strtok(NULL,"\n");
4062                                                 }
4063                                                 goto label;
4064                                         }
4065
4066                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4067                                         {
4068                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4069                                                 kill_link(count2a->second,strerror(errno));
4070                                                 goto label;
4071                                         }
4072                                 }
4073                                 // result EAGAIN means nothing read
4074                                 if (result == EAGAIN)
4075                                 {
4076                                 }
4077                                 else
4078                                 if (result == 0)
4079                                 {
4080                                         if (count2->second)
4081                                         {
4082                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4083                                                 kill_link(count2a->second,"Client exited");
4084                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4085                                                 log(DEBUG,"Bailing from client exit");
4086                                                 goto label;
4087                                         }
4088                                 }
4089                                 else if (result > 0)
4090                                 {
4091                                 }
4092                         }
4093                 }
4094                 for (int q = 0; q < total_in_this_set; q++)
4095                 {
4096                         // there is no iterator += operator :(
4097                         //if (count2 != clientlist.end())
4098                         //{
4099                                 count2++;
4100                         //}
4101                 }
4102         }
4103
4104         // set up select call
4105         for (count = 0; count < boundPortCount; count++)
4106         {
4107                 FD_SET (openSockfd[count], &selectFds);
4108         }
4109
4110         tv.tv_usec = 7000L;
4111         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4112
4113         /* select is reporting a waiting socket. Poll them all to find out which */
4114         if (selectResult > 0)
4115         {
4116                 char target[MAXBUF], resolved[MAXBUF];
4117                 for (count = 0; count < boundPortCount; count++)
4118                 {
4119                         if (FD_ISSET (openSockfd[count], &selectFds))
4120                         {
4121                                 length = sizeof (client);
4122                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4123
4124                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4125                                 strlcpy (resolved, target, MAXBUF);
4126
4127                                 if (incomingSockfd < 0)
4128                                 {
4129                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4130                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4131                                 }
4132                                 else
4133                                 {
4134                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4135                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4136                                 }
4137                                 goto label;
4138                         }
4139                 }
4140         }
4141         label:
4142         if (0) {};
4143 }
4144 /* not reached */
4145 close (incomingSockfd);
4146 }
4147