src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55 #include "mode.h"
  56 #include "commands.h"
  57 #include "xline.h"
  58 #include "inspstring.h"
  59 #include "dnsqueue.h"
  60
  61 #ifdef GCC3
  62 #define nspace __gnu_cxx
  63 #else
  64 #define nspace std
  65 #endif
  66
  67 int LogLevel = DEFAULT;
  68 char ServerName[MAXBUF];
  69 char Network[MAXBUF];
  70 char ServerDesc[MAXBUF];
  71 char AdminName[MAXBUF];
  72 char AdminEmail[MAXBUF];
  73 char AdminNick[MAXBUF];
  74 char diepass[MAXBUF];
  75 char restartpass[MAXBUF];
  76 char motd[MAXBUF];
  77 char rules[MAXBUF];
  78 char list[MAXBUF];
  79 char PrefixQuit[MAXBUF];
  80 char DieValue[MAXBUF];
  81 char DNSServer[MAXBUF];
  82 int debugging =  0;
  83 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  84 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  85 int DieDelay  =  5;
  86 time_t startup_time = time(NULL);
  87 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  88 extern int MaxWhoResults;
  89 time_t nb_start = 0;
  90 int dns_timeout = 5;
  91
  92 char DisabledCommands[MAXBUF];
  93
  94 bool AllowHalfop = true;
  95 bool AllowProtect = true;
  96 bool AllowFounder = true;
  97
  98 extern std::vector<Module*> modules;
  99 std::vector<std::string> module_names;
 100 extern std::vector<ircd_module*> factory;
 101
 102 extern int MODCOUNT;
 103 int openSockfd[MAXSOCKS];
 104 bool nofork = false;
 105 bool unlimitcore = false;
 106
 107 time_t TIME = time(NULL);
 108
 109 namespace nspace
 110 {
 111 #ifdef GCC34
 112         template<> struct hash<in_addr>
 113 #else
 114         template<> struct nspace::hash<in_addr>
 115 #endif
 116         {
 117                 size_t operator()(const struct in_addr &a) const
 118                 {
 119                         size_t q;
 120                         memcpy(&q,&a,sizeof(size_t));
 121                         return q;
 122                 }
 123         };
 124 #ifdef GCC34
 125         template<> struct hash<string>
 126 #else
 127         template<> struct nspace::hash<string>
 128 #endif
 129         {
 130                 size_t operator()(const string &s) const
 131                 {
 132                         char a[MAXBUF];
 133                         static struct hash<const char *> strhash;
 134                         strlcpy(a,s.c_str(),MAXBUF);
 135                         strlower(a);
 136                         return strhash(a);
 137                 }
 138         };
 139 }
 140
 141
 142 struct StrHashComp
 143 {
 144
 145         bool operator()(const string& s1, const string& s2) const
 146         {
 147                 char a[MAXBUF],b[MAXBUF];
 148                 strlcpy(a,s1.c_str(),MAXBUF);
 149                 strlcpy(b,s2.c_str(),MAXBUF);
 150                 strlower(a);
 151                 strlower(b);
 152                 return (strcasecmp(a,b) == 0);
 153         }
 154
 155 };
 156
 157 struct InAddr_HashComp
 158 {
 159
 160         bool operator()(const in_addr &s1, const in_addr &s2) const
 161         {
 162                 size_t q;
 163                 size_t p;
 164
 165                 memcpy(&q,&s1,sizeof(size_t));
 166                 memcpy(&p,&s2,sizeof(size_t));
 167
 168                 return (q == p);
 169         }
 170
 171 };
 172
 173
 174 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 175 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 176 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 177 typedef std::deque<command_t> command_table;
 178
 179 serverrec* me[32];
 180
 181 FILE *log_file;
 182
 183 user_hash clientlist;
 184 chan_hash chanlist;
 185 user_hash whowas;
 186 command_table cmdlist;
 187 file_cache MOTD;
 188 file_cache RULES;
 189 address_cache IP;
 190
 191 ClassVector Classes;
 192
 193 struct linger linger = { 0 };
 194 char MyExecutable[1024];
 195 int boundPortCount = 0;
 196 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 197 int defaultRoute = 0;
 198 char ModPath[MAXBUF];
 199
 200 connection C;
 201
 202 long MyKey = C.GenKey();
 203
 204 /* prototypes */
 205
 206 int has_channel(userrec *u, chanrec *c);
 207 int usercount(chanrec *c);
 208 int usercount_i(chanrec *c);
 209 char* Passwd(userrec *user);
 210 bool IsDenied(userrec *user);
 211 void AddWhoWas(userrec* u);
 212
 213 std::vector<long> auth_cookies;
 214 std::stringstream config_f(stringstream::in | stringstream::out);
 215
 216
 217
 218 long GetRevision()
 219 {
 220         char Revision[] = "$Revision$";
 221         char *s1 = Revision;
 222         char *savept;
 223         char *v2 = strtok_r(s1," ",&savept);
 224         s1 = savept;
 225         v2 = strtok_r(s1," ",&savept);
 226         s1 = savept;
 227         return (long)(atof(v2)*10000);
 228 }
 229
 230
 231 std::string getservername()
 232 {
 233         return ServerName;
 234 }
 235
 236 std::string getserverdesc()
 237 {
 238         return ServerDesc;
 239 }
 240
 241 std::string getnetworkname()
 242 {
 243         return Network;
 244 }
 245
 246 std::string getadminname()
 247 {
 248         return AdminName;
 249 }
 250
 251 std::string getadminemail()
 252 {
 253         return AdminEmail;
 254 }
 255
 256 std::string getadminnick()
 257 {
 258         return AdminNick;
 259 }
 260
 261 void log(int level,char *text, ...)
 262 {
 263         char textbuffer[MAXBUF];
 264         va_list argsPtr;
 265         time_t rawtime;
 266         struct tm * timeinfo;
 267         if (level < LogLevel)
 268                 return;
 269
 270         time(&rawtime);
 271         timeinfo = localtime (&rawtime);
 272
 273         if (log_file)
 274         {
 275                 char b[MAXBUF];
 276                 va_start (argsPtr, text);
 277                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 278                 va_end(argsPtr);
 279                 strlcpy(b,asctime(timeinfo),MAXBUF);
 280                 b[strlen(b)-1] = ':';
 281                 fprintf(log_file,"%s %s\n",b,textbuffer);
 282                 if (nofork)
 283                 {
 284                         // nofork enabled? display it on terminal too
 285                         printf("%s %s\n",b,textbuffer);
 286                 }
 287         }
 288 }
 289
 290 void readfile(file_cache &F, const char* fname)
 291 {
 292         FILE* file;
 293         char linebuf[MAXBUF];
 294
 295         log(DEBUG,"readfile: loading %s",fname);
 296         F.clear();
 297         file =  fopen(fname,"r");
 298         if (file)
 299         {
 300                 while (!feof(file))
 301                 {
 302                         fgets(linebuf,sizeof(linebuf),file);
 303                         linebuf[strlen(linebuf)-1]='\0';
 304                         if (!strcmp(linebuf,""))
 305                         {
 306                                 strcpy(linebuf,"  ");
 307                         }
 308                         if (!feof(file))
 309                         {
 310                                 F.push_back(linebuf);
 311                         }
 312                 }
 313                 fclose(file);
 314         }
 315         else
 316         {
 317                 log(DEBUG,"readfile: failed to load file: %s",fname);
 318         }
 319         log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 320 }
 321
 322 void ReadConfig(bool bail, userrec* user)
 323 {
 324         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 325         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
 326         ConnectClass c;
 327         std::stringstream errstr;
 328
 329         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 330         {
 331                 errstr.seekg(0);
 332                 if (bail)
 333                 {
 334                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 335                         Exit(0);
 336                 }
 337                 else
 338                 {
 339                         char dataline[1024];
 340                         if (user)
 341                         {
 342                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 343                                 while (!errstr.eof())
 344                                 {
 345                                         errstr.getline(dataline,1024);
 346                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 347                                 }
 348                         }
 349                         else
 350                         {
 351                                 WriteOpers("There were errors in the configuration file:",user->nick);
 352                                 while (!errstr.eof())
 353                                 {
 354                                         errstr.getline(dataline,1024);
 355                                         WriteOpers(dataline);
 356                                 }
 357                         }
 358                         return;
 359                 }
 360         }
 361
 362         ConfValue("server","name",0,ServerName,&config_f);
 363         ConfValue("server","description",0,ServerDesc,&config_f);
 364         ConfValue("server","network",0,Network,&config_f);
 365         ConfValue("admin","name",0,AdminName,&config_f);
 366         ConfValue("admin","email",0,AdminEmail,&config_f);
 367         ConfValue("admin","nick",0,AdminNick,&config_f);
 368         ConfValue("files","motd",0,motd,&config_f);
 369         ConfValue("files","rules",0,rules,&config_f);
 370         ConfValue("power","diepass",0,diepass,&config_f);
 371         ConfValue("power","pause",0,pauseval,&config_f);
 372         ConfValue("power","restartpass",0,restartpass,&config_f);
 373         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 374         ConfValue("die","value",0,DieValue,&config_f);
 375         ConfValue("options","loglevel",0,dbg,&config_f);
 376         ConfValue("options","netbuffersize",0,NB,&config_f);
 377         ConfValue("options","maxwho",0,MW,&config_f);
 378         ConfValue("options","allowhalfop",0,AH,&config_f);
 379         ConfValue("options","allowprotect",0,AP,&config_f);
 380         ConfValue("options","allowfounder",0,AF,&config_f);
 381         ConfValue("dns","server",0,DNSServer,&config_f);
 382         ConfValue("dns","timeout",0,DNT,&config_f);
 383         ConfValue("options","moduledir",0,ModPath,&config_f);
 384         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 385
 386         NetBufferSize = atoi(NB);
 387         MaxWhoResults = atoi(MW);
 388         dns_timeout = atoi(DNT);
 389         if (!dns_timeout)
 390                 dns_timeout = 5;
 391         if (!strcmp(DNSServer,""))
 392                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 393         if (!strcmp(ModPath,""))
 394                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 395         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 396         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 397         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 398         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 399         {
 400                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 401                 NetBufferSize = 10240;
 402         }
 403         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 404         {
 405                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 406                 MaxWhoResults = 128;
 407         }
 408         if (!strcmp(dbg,"debug"))
 409                 LogLevel = DEBUG;
 410         if (!strcmp(dbg,"verbose"))
 411                 LogLevel = VERBOSE;
 412         if (!strcmp(dbg,"default"))
 413                 LogLevel = DEFAULT;
 414         if (!strcmp(dbg,"sparse"))
 415                 LogLevel = SPARSE;
 416         if (!strcmp(dbg,"none"))
 417                 LogLevel = NONE;
 418         readfile(MOTD,motd);
 419         log(DEFAULT,"Reading message of the day...");
 420         readfile(RULES,rules);
 421         log(DEFAULT,"Reading connect classes...");
 422         Classes.clear();
 423         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 424         {
 425                 strcpy(Value,"");
 426                 ConfValue("connect","allow",i,Value,&config_f);
 427                 ConfValue("connect","timeout",i,timeout,&config_f);
 428                 ConfValue("connect","flood",i,flood,&config_f);
 429                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 430                 if (strcmp(Value,""))
 431                 {
 432                         strlcpy(c.host,Value,MAXBUF);
 433                         c.type = CC_ALLOW;
 434                         strlcpy(Value,"",MAXBUF);
 435                         ConfValue("connect","password",i,Value,&config_f);
 436                         strlcpy(c.pass,Value,MAXBUF);
 437                         c.registration_timeout = 90; // default is 2 minutes
 438                         c.pingtime = 120;
 439                         c.flood = atoi(flood);
 440                         if (atoi(timeout)>0)
 441                         {
 442                                 c.registration_timeout = atoi(timeout);
 443                         }
 444                         if (atoi(pfreq)>0)
 445                         {
 446                                 c.pingtime = atoi(pfreq);
 447                         }
 448                         Classes.push_back(c);
 449                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 450                 }
 451                 else
 452                 {
 453                         ConfValue("connect","deny",i,Value,&config_f);
 454                         strlcpy(c.host,Value,MAXBUF);
 455                         c.type = CC_DENY;
 456                         Classes.push_back(c);
 457                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 458                 }
 459
 460         }
 461         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 462         read_xline_defaults();
 463         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 464         apply_lines();
 465         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 466         if (!bail)
 467         {
 468                 log(DEFAULT,"Adding and removing modules due to rehash...");
 469
 470                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 471
 472                 // store the old module names
 473                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 474                 {
 475                         old_module_names.push_back(*t);
 476                 }
 477
 478                 // get the new module names
 479                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 480                 {
 481                         ConfValue("module","name",count2,Value,&config_f);
 482                         new_module_names.push_back(Value);
 483                 }
 484
 485                 // now create a list of new modules that are due to be loaded
 486                 // and a seperate list of modules which are due to be unloaded
 487                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 488                 {
 489                         bool added = true;
 490                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 491                         {
 492                                 if (*old == *_new)
 493                                         added = false;
 494                         }
 495                         if (added)
 496                                 added_modules.push_back(*_new);
 497                 }
 498                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 499                 {
 500                         bool removed = true;
 501                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 502                         {
 503                                 if (*newm == *oldm)
 504                                         removed = false;
 505                         }
 506                         if (removed)
 507                                 removed_modules.push_back(*oldm);
 508                 }
 509                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 510                 // to be removed.
 511                 int rem = 0, add = 0;
 512                 if (!removed_modules.empty())
 513                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 514                 {
 515                         if (UnloadModule(removing->c_str()))
 516                         {
 517                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 518                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 519                                 rem++;
 520                         }
 521                         else
 522                         {
 523                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 524                         }
 525                 }
 526                 if (!added_modules.empty())
 527                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 528                 {
 529                         if (LoadModule(adding->c_str()))
 530                         {
 531                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 532                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 533                                 add++;
 534                         }
 535                         else
 536                         {
 537                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 538                         }
 539                 }
 540                 log(DEFAULT,"Successfully unloaded %d of %d modules and loaded %d of %d modules.",rem,removed_modules.size(),add,added_modules.size());
 541         }
 542 }
 543
 544 /* write formatted text to a socket, in same format as printf */
 545
 546 void Write(int sock,char *text, ...)
 547 {
 548         if (sock == FD_MAGIC_NUMBER)
 549                 return;
 550         if (!text)
 551         {
 552                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 553                 return;
 554         }
 555         char textbuffer[MAXBUF];
 556         va_list argsPtr;
 557         char tb[MAXBUF];
 558
 559         va_start (argsPtr, text);
 560         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 561         va_end(argsPtr);
 562         snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 563         chop(tb);
 564         if (sock != -1)
 565         {
 566                 write(sock,tb,strlen(tb));
 567         }
 568 }
 569
 570 /* write a server formatted numeric response to a single socket */
 571
 572 void WriteServ(int sock, char* text, ...)
 573 {
 574         if (sock == FD_MAGIC_NUMBER)
 575                 return;
 576         if (!text)
 577         {
 578                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 579                 return;
 580         }
 581         char textbuffer[MAXBUF],tb[MAXBUF];
 582         va_list argsPtr;
 583         va_start (argsPtr, text);
 584
 585         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 586         va_end(argsPtr);
 587         snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 588         chop(tb);
 589         if (sock != -1)
 590         {
 591                 write(sock,tb,strlen(tb));
 592         }
 593 }
 594
 595 /* write text from an originating user to originating user */
 596
 597 void WriteFrom(int sock, userrec *user,char* text, ...)
 598 {
 599         if (sock == FD_MAGIC_NUMBER)
 600                 return;
 601         if ((!text) || (!user))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF],tb[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609
 610         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 611         va_end(argsPtr);
 612         snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 613         chop(tb);
 614         if (sock != -1)
 615         {
 616                 write(sock,tb,strlen(tb));
 617         }
 618 }
 619
 620 /* write text to an destination user from a source user (e.g. user privmsg) */
 621
 622 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 623 {
 624         if ((!dest) || (!data))
 625         {
 626                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 627                 return;
 628         }
 629         if (dest->fd == FD_MAGIC_NUMBER)
 630                 return;
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, data);
 634         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 635         va_end(argsPtr);
 636         chop(tb);
 637
 638         // if no source given send it from the server.
 639         if (!source)
 640         {
 641                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 642         }
 643         else
 644         {
 645                 WriteFrom(dest->fd,source,"%s",textbuffer);
 646         }
 647 }
 648
 649 /* write formatted text from a source user to all users on a channel
 650  * including the sender (NOT for privmsg, notice etc!) */
 651
 652 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 653 {
 654         if ((!Ptr) || (!user) || (!text))
 655         {
 656                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 657                 return;
 658         }
 659         char textbuffer[MAXBUF];
 660         va_list argsPtr;
 661         va_start (argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 665         {
 666                 if (has_channel(i->second,Ptr))
 667                 {
 668                         if (i->second->fd != FD_MAGIC_NUMBER)
 669                                 WriteTo(user,i->second,"%s",textbuffer);
 670                 }
 671         }
 672 }
 673
 674 /* write formatted text from a source user to all users on a channel
 675  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 676  * users on remote servers */
 677
 678 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 679 {
 680         if ((!Ptr) || (!text))
 681         {
 682                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 683                 return;
 684         }
 685         char textbuffer[MAXBUF];
 686         va_list argsPtr;
 687         va_start (argsPtr, text);
 688         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 689         va_end(argsPtr);
 690         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 691         {
 692                 if (has_channel(i->second,Ptr))
 693                 {
 694                         if ((i->second->fd != -1) && (i->second->fd != FD_MAGIC_NUMBER))
 695                         {
 696                                 if (!user)
 697                                 {
 698                                         WriteServ(i->second->fd,"%s",textbuffer);
 699                                 }
 700                                 else
 701                                 {
 702                                         WriteTo(user,i->second,"%s",textbuffer);
 703                                 }
 704                         }
 705                 }
 706         }
 707 }
 708
 709
 710 void WriteChannelWithServ(char* ServName, chanrec* Ptr, userrec* user, char* text, ...)
 711 {
 712         if ((!Ptr) || (!user) || (!text))
 713         {
 714                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 715                 return;
 716         }
 717         char textbuffer[MAXBUF];
 718         va_list argsPtr;
 719         va_start (argsPtr, text);
 720         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 721         va_end(argsPtr);
 722         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 723         {
 724                 if (i->second)
 725                 {
 726                         if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 727                         {
 728                                 WriteServ(i->second->fd,"%s",textbuffer);
 729                         }
 730                 }
 731         }
 732 }
 733
 734
 735 /* write formatted text from a source user to all users on a channel except
 736  * for the sender (for privmsg etc) */
 737
 738 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 739 {
 740         if ((!Ptr) || (!user) || (!text))
 741         {
 742                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 743                 return;
 744         }
 745         char textbuffer[MAXBUF];
 746         va_list argsPtr;
 747         va_start (argsPtr, text);
 748         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 749         va_end(argsPtr);
 750
 751         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 752         {
 753                 if (i->second)
 754                 {
 755                         if ((has_channel(i->second,Ptr)) && (user != i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 756                         {
 757                                 WriteTo(user,i->second,"%s",textbuffer);
 758                         }
 759                 }
 760         }
 761 }
 762
 763
 764 std::string GetServerDescription(char* servername)
 765 {
 766         for (int j = 0; j < 32; j++)
 767         {
 768                 if (me[j] != NULL)
 769                 {
 770                         for (int k = 0; k < me[j]->connectors.size(); k++)
 771                         {
 772                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 773                                 {
 774                                         return me[j]->connectors[k].GetDescription();
 775                                 }
 776                         }
 777                 }
 778                 return ServerDesc; // not a remote server that can be found, it must be me.
 779         }
 780 }
 781
 782
 783 /* write a formatted string to all users who share at least one common
 784  * channel, including the source user e.g. for use in NICK */
 785
 786 void WriteCommon(userrec *u, char* text, ...)
 787 {
 788         if (!u)
 789         {
 790                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 791                 return;
 792         }
 793
 794         if (u->registered != 7) {
 795                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 796                 return;
 797         }
 798
 799         char textbuffer[MAXBUF];
 800         va_list argsPtr;
 801         va_start (argsPtr, text);
 802         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 803         va_end(argsPtr);
 804
 805         WriteFrom(u->fd,u,"%s",textbuffer);
 806
 807         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 808         {
 809                 if (i->second)
 810                 {
 811                         if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 812                         {
 813                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 814                         }
 815                 }
 816         }
 817 }
 818
 819 /* write a formatted string to all users who share at least one common
 820  * channel, NOT including the source user e.g. for use in QUIT */
 821
 822 void WriteCommonExcept(userrec *u, char* text, ...)
 823 {
 824         if (!u)
 825         {
 826                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 827                 return;
 828         }
 829
 830         if (u->registered != 7) {
 831                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 832                 return;
 833         }
 834
 835         char textbuffer[MAXBUF];
 836         va_list argsPtr;
 837         va_start (argsPtr, text);
 838         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 839         va_end(argsPtr);
 840
 841         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 842         {
 843                 if (i->second)
 844                 {
 845                         if ((common_channels(u,i->second)) && (u != i->second))
 846                         {
 847                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 848                         }
 849                 }
 850         }
 851 }
 852
 853 void WriteOpers(char* text, ...)
 854 {
 855         if (!text)
 856         {
 857                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 858                 return;
 859         }
 860
 861         char textbuffer[MAXBUF];
 862         va_list argsPtr;
 863         va_start (argsPtr, text);
 864         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 865         va_end(argsPtr);
 866
 867         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 868         {
 869                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 870                 {
 871                         if (strchr(i->second->modes,'o'))
 872                         {
 873                                 if (strchr(i->second->modes,'s'))
 874                                 {
 875                                         // send server notices to all with +s
 876                                         // (TODO: needs SNOMASKs)
 877                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 878                                 }
 879                         }
 880                 }
 881         }
 882 }
 883
 884 // returns TRUE of any users on channel C occupy server 'servername'.
 885
 886 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 887 {
 888         log(DEBUG,"ChanAnyOnThisServer");
 889         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 890         {
 891                 if (has_channel(i->second,c))
 892                 {
 893                         if (!strcasecmp(i->second->server,servername))
 894                         {
 895                                 return true;
 896                         }
 897                 }
 898         }
 899         return false;
 900 }
 901
 902 // returns true if user 'u' shares any common channels with any users on server 'servername'
 903
 904 bool CommonOnThisServer(userrec* u,const char* servername)
 905 {
 906         log(DEBUG,"ChanAnyOnThisServer");
 907         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 908         {
 909                 if ((common_channels(u,i->second)) && (u != i->second))
 910                 {
 911                         if (!strcasecmp(i->second->server,servername))
 912                         {
 913                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 914                                 return true;
 915                         }
 916                 }
 917         }
 918         return false;
 919 }
 920
 921
 922 void NetSendToCommon(userrec* u, char* s)
 923 {
 924         char buffer[MAXBUF];
 925         snprintf(buffer,MAXBUF,"%s",s);
 926
 927         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 928
 929         std::string msg = buffer;
 930         FOREACH_MOD OnPacketTransmit(msg,s);
 931         strlcpy(buffer,msg.c_str(),MAXBUF);
 932
 933         for (int j = 0; j < 32; j++)
 934         {
 935                 if (me[j] != NULL)
 936                 {
 937                         for (int k = 0; k < me[j]->connectors.size(); k++)
 938                         {
 939                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 940                                 {
 941                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 942                                 }
 943                         }
 944                 }
 945         }
 946 }
 947
 948
 949 void NetSendToAll(char* s)
 950 {
 951         char buffer[MAXBUF];
 952         snprintf(buffer,MAXBUF,"%s",s);
 953
 954         log(DEBUG,"NetSendToAll: '%s'",s);
 955
 956         std::string msg = buffer;
 957         FOREACH_MOD OnPacketTransmit(msg,s);
 958         strlcpy(buffer,msg.c_str(),MAXBUF);
 959
 960         for (int j = 0; j < 32; j++)
 961         {
 962                 if (me[j] != NULL)
 963                 {
 964                         for (int k = 0; k < me[j]->connectors.size(); k++)
 965                         {
 966                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 967                         }
 968                 }
 969         }
 970 }
 971
 972 void NetSendToAllAlive(char* s)
 973 {
 974         char buffer[MAXBUF];
 975         snprintf(buffer,MAXBUF,"%s",s);
 976
 977         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 978
 979         std::string msg = buffer;
 980         FOREACH_MOD OnPacketTransmit(msg,s);
 981         strlcpy(buffer,msg.c_str(),MAXBUF);
 982
 983         for (int j = 0; j < 32; j++)
 984         {
 985                 if (me[j] != NULL)
 986                 {
 987                         for (int k = 0; k < me[j]->connectors.size(); k++)
 988                         {
 989                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 990                                 {
 991                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 992                                 }
 993                                 else
 994                                 {
 995                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 996                                 }
 997                         }
 998                 }
 999         }
1000 }
1001
1002
1003 void NetSendToOne(char* target,char* s)
1004 {
1005         char buffer[MAXBUF];
1006         snprintf(buffer,MAXBUF,"%s",s);
1007
1008         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1009
1010         std::string msg = buffer;
1011         FOREACH_MOD OnPacketTransmit(msg,s);
1012         strlcpy(buffer,msg.c_str(),MAXBUF);
1013
1014         for (int j = 0; j < 32; j++)
1015         {
1016                 if (me[j] != NULL)
1017                 {
1018                         for (int k = 0; k < me[j]->connectors.size(); k++)
1019                         {
1020                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1021                                 {
1022                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1023                                 }
1024                         }
1025                 }
1026         }
1027 }
1028
1029 void NetSendToAllExcept(const char* target,char* s)
1030 {
1031         char buffer[MAXBUF];
1032         snprintf(buffer,MAXBUF,"%s",s);
1033
1034         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1035
1036         std::string msg = buffer;
1037         FOREACH_MOD OnPacketTransmit(msg,s);
1038         strlcpy(buffer,msg.c_str(),MAXBUF);
1039
1040         for (int j = 0; j < 32; j++)
1041         {
1042                 if (me[j] != NULL)
1043                 {
1044                         for (int k = 0; k < me[j]->connectors.size(); k++)
1045                         {
1046                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1047                                 {
1048                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1049                                 }
1050                         }
1051                 }
1052         }
1053 }
1054
1055
1056 void WriteMode(const char* modes, int flags, const char* text, ...)
1057 {
1058         if ((!text) || (!modes) || (!flags))
1059         {
1060                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1061                 return;
1062         }
1063
1064         char textbuffer[MAXBUF];
1065         va_list argsPtr;
1066         va_start (argsPtr, text);
1067         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1068         va_end(argsPtr);
1069
1070         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1071         {
1072                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1073                 {
1074                         bool send_to_user = false;
1075
1076                         if (flags == WM_AND)
1077                         {
1078                                 send_to_user = true;
1079                                 for (int n = 0; n < strlen(modes); n++)
1080                                 {
1081                                         if (!hasumode(i->second,modes[n]))
1082                                         {
1083                                                 send_to_user = false;
1084                                                 break;
1085                                         }
1086                                 }
1087                         }
1088                         else if (flags == WM_OR)
1089                         {
1090                                 send_to_user = false;
1091                                 for (int n = 0; n < strlen(modes); n++)
1092                                 {
1093                                         if (hasumode(i->second,modes[n]))
1094                                         {
1095                                                 send_to_user = true;
1096                                                 break;
1097                                         }
1098                                 }
1099                         }
1100
1101                         if (send_to_user)
1102                         {
1103                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1104                         }
1105                 }
1106         }
1107 }
1108
1109
1110 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1111 {
1112         if ((!text) || (!source))
1113         {
1114                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1115                 return;
1116         }
1117
1118         char textbuffer[MAXBUF];
1119         va_list argsPtr;
1120         va_start (argsPtr, text);
1121         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1122         va_end(argsPtr);
1123
1124         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1125         {
1126                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1127                 {
1128                         if (strchr(i->second->modes,'w'))
1129                         {
1130                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1131                         }
1132                 }
1133         }
1134
1135         if (!local_only)
1136         {
1137                 char buffer[MAXBUF];
1138                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1139                 NetSendToAll(buffer);
1140         }
1141 }
1142
1143 /* convert a string to lowercase. Note following special circumstances
1144  * taken from RFC 1459. Many "official" server branches still hold to this
1145  * rule so i will too;
1146  *
1147  *  Because of IRC's scandanavian origin, the characters {}| are
1148  *  considered to be the lower case equivalents of the characters []\,
1149  *  respectively. This is a critical issue when determining the
1150  *  equivalence of two nicknames.
1151  */
1152
1153 void strlower(char *n)
1154 {
1155         if (!n)
1156         {
1157                 return;
1158         }
1159         for (int i = 0; i != strlen(n); i++)
1160         {
1161                 n[i] = tolower(n[i]);
1162                 if (n[i] == '[')
1163                         n[i] = '{';
1164                 if (n[i] == ']')
1165                         n[i] = '}';
1166                 if (n[i] == '\\')
1167                         n[i] = '|';
1168         }
1169 }
1170
1171
1172
1173 /* Find a user record by nickname and return a pointer to it */
1174
1175 userrec* Find(std::string nick)
1176 {
1177         user_hash::iterator iter = clientlist.find(nick);
1178
1179         if (iter == clientlist.end())
1180                 /* Couldn't find it */
1181                 return NULL;
1182
1183         return iter->second;
1184 }
1185
1186 /* find a channel record by channel name and return a pointer to it */
1187
1188 chanrec* FindChan(const char* chan)
1189 {
1190         if (!chan)
1191         {
1192                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1193                 return NULL;
1194         }
1195
1196         chan_hash::iterator iter = chanlist.find(chan);
1197
1198         if (iter == chanlist.end())
1199                 /* Couldn't find it */
1200                 return NULL;
1201
1202         return iter->second;
1203 }
1204
1205
1206 long GetMaxBans(char* name)
1207 {
1208         char CM[MAXBUF];
1209         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1210         {
1211                 ConfValue("banlist","chan",count,CM,&config_f);
1212                 if (match(name,CM))
1213                 {
1214                         ConfValue("banlist","limit",count,CM,&config_f);
1215                         return atoi(CM);
1216                 }
1217         }
1218         return 64;
1219 }
1220
1221
1222 void purge_empty_chans(userrec* u)
1223 {
1224
1225         int go_again = 1, purge = 0;
1226
1227         // firstly decrement the count on each channel
1228         for (int f = 0; f < MAXCHANS; f++)
1229                 if (u->chans[f].channel)
1230                         u->chans[f].channel->DecUserCounter();
1231
1232         for (int i = 0; i < MAXCHANS; i++)
1233         {
1234                 if (u->chans[i].channel)
1235                 {
1236                         if (!usercount(u->chans[i].channel))
1237                         {
1238                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1239                                 /* kill the record */
1240                                 if (i2 != chanlist.end())
1241                                 {
1242                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1243                                         if (i2->second)
1244                                                 delete i2->second;
1245                                         chanlist.erase(i2);
1246                                         go_again = 1;
1247                                         purge++;
1248                                         u->chans[i].channel = NULL;
1249                                 }
1250                         }
1251                         else
1252                         {
1253                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1254                         }
1255                 }
1256         }
1257         log(DEBUG,"completed channel purge, killed %d",purge);
1258 }
1259
1260
1261 char scratch[MAXBUF];
1262 char sparam[MAXBUF];
1263
1264 char* chanmodes(chanrec *chan)
1265 {
1266         if (!chan)
1267         {
1268                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1269                 strcpy(scratch,"");
1270                 return scratch;
1271         }
1272
1273         strcpy(scratch,"");
1274         strcpy(sparam,"");
1275         if (chan->noexternal)
1276         {
1277                 strlcat(scratch,"n",MAXMODES);
1278         }
1279         if (chan->topiclock)
1280         {
1281                 strlcat(scratch,"t",MAXMODES);
1282         }
1283         if (strcmp(chan->key,""))
1284         {
1285                 strlcat(scratch,"k",MAXMODES);
1286         }
1287         if (chan->limit)
1288         {
1289                 strlcat(scratch,"l",MAXMODES);
1290         }
1291         if (chan->inviteonly)
1292         {
1293                 strlcat(scratch,"i",MAXMODES);
1294         }
1295         if (chan->moderated)
1296         {
1297                 strlcat(scratch,"m",MAXMODES);
1298         }
1299         if (chan->secret)
1300         {
1301                 strlcat(scratch,"s",MAXMODES);
1302         }
1303         if (chan->c_private)
1304         {
1305                 strlcat(scratch,"p",MAXMODES);
1306         }
1307         if (strcmp(chan->key,""))
1308         {
1309                 strlcat(sparam," ",MAXBUF);
1310                 strlcat(sparam,chan->key,MAXBUF);
1311         }
1312         if (chan->limit)
1313         {
1314                 char foo[24];
1315                 sprintf(foo," %d",chan->limit);
1316                 strlcat(sparam,foo,MAXBUF);
1317         }
1318         if (strlen(chan->custom_modes))
1319         {
1320                 strlcat(scratch,chan->custom_modes,MAXMODES);
1321                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1322                 {
1323                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1324                         if (extparam != "")
1325                         {
1326                                 strlcat(sparam," ",MAXBUF);
1327                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1328                         }
1329                 }
1330         }
1331         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1332         strlcat(scratch,sparam,MAXMODES);
1333         return scratch;
1334 }
1335
1336
1337 /* compile a userlist of a channel into a string, each nick seperated by
1338  * spaces and op, voice etc status shown as @ and + */
1339
1340 void userlist(userrec *user,chanrec *c)
1341 {
1342         if ((!c) || (!user))
1343         {
1344                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1345                 return;
1346         }
1347
1348         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1349         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1350         {
1351                 if (has_channel(i->second,c))
1352                 {
1353                         if (isnick(i->second->nick))
1354                         {
1355                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1356                                 {
1357                                         /* user is +i, and source not on the channel, does not show
1358                                          * nick in NAMES list */
1359                                         continue;
1360                                 }
1361                                 strlcat(list,cmode(i->second,c),MAXBUF);
1362                                 strlcat(list,i->second->nick,MAXBUF);
1363                                 strlcat(list," ",MAXBUF);
1364                                 if (strlen(list)>(480-NICKMAX))
1365                                 {
1366                                         /* list overflowed into
1367                                          * multiple numerics */
1368                                         WriteServ(user->fd,"%s",list);
1369                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1370                                 }
1371                         }
1372                 }
1373         }
1374         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1375         {
1376                 WriteServ(user->fd,"%s",list);
1377         }
1378 }
1379
1380 /* return a count of the users on a specific channel accounting for
1381  * invisible users who won't increase the count. e.g. for /LIST */
1382
1383 int usercount_i(chanrec *c)
1384 {
1385         int count = 0;
1386
1387         if (!c)
1388         {
1389                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1390                 return 0;
1391         }
1392
1393         strcpy(list,"");
1394         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1395         {
1396                 if (i->second)
1397                 {
1398                         if (has_channel(i->second,c))
1399                         {
1400                                 if (isnick(i->second->nick))
1401                                 {
1402                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1403                                         {
1404                                                 /* user is +i, and source not on the channel, does not show
1405                                                  * nick in NAMES list */
1406                                                 continue;
1407                                         }
1408                                         count++;
1409                                 }
1410                         }
1411                 }
1412         }
1413         log(DEBUG,"usercount_i: %s %d",c->name,count);
1414         return count;
1415 }
1416
1417
1418 int usercount(chanrec *c)
1419 {
1420         if (!c)
1421         {
1422                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1423                 return 0;
1424         }
1425         int count = c->GetUserCounter();
1426         log(DEBUG,"usercount: %s %d",c->name,count);
1427         return count;
1428 }
1429
1430
1431 /* add a channel to a user, creating the record for it if needed and linking
1432  * it to the user record */
1433
1434 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1435 {
1436         if ((!user) || (!cn))
1437         {
1438                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1439                 return 0;
1440         }
1441
1442         chanrec* Ptr;
1443         int created = 0;
1444         char cname[MAXBUF];
1445
1446         strncpy(cname,cn,MAXBUF);
1447
1448         // we MUST declare this wherever we use FOREACH_RESULT
1449         int MOD_RESULT = 0;
1450
1451         if (strlen(cname) > CHANMAX-1)
1452         {
1453                 cname[CHANMAX-1] = '\0';
1454         }
1455
1456         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1457
1458         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1459         {
1460                 return NULL; // already on the channel!
1461         }
1462
1463
1464         if (!FindChan(cname))
1465         {
1466                 MOD_RESULT = 0;
1467                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1468                 if (MOD_RESULT == 1) {
1469                         return NULL;
1470                 }
1471
1472                 /* create a new one */
1473                 log(DEBUG,"add_channel: creating: %s",cname);
1474                 {
1475                         chanlist[cname] = new chanrec();
1476
1477                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1478                         chanlist[cname]->topiclock = 1;
1479                         chanlist[cname]->noexternal = 1;
1480                         chanlist[cname]->created = TIME;
1481                         strcpy(chanlist[cname]->topic, "");
1482                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1483                         chanlist[cname]->topicset = 0;
1484                         Ptr = chanlist[cname];
1485                         log(DEBUG,"add_channel: created: %s",cname);
1486                         /* set created to 2 to indicate user
1487                          * is the first in the channel
1488                          * and should be given ops */
1489                         created = 2;
1490                 }
1491         }
1492         else
1493         {
1494                 /* channel exists, just fish out a pointer to its struct */
1495                 Ptr = FindChan(cname);
1496                 if (Ptr)
1497                 {
1498                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1499
1500                         // the override flag allows us to bypass channel modes
1501                         // and bans (used by servers)
1502                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1503                         {
1504                                 log(DEBUG,"Not overriding...");
1505                                 MOD_RESULT = 0;
1506                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1507                                 if (MOD_RESULT == 1) {
1508                                         return NULL;
1509                                 }
1510                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1511
1512                                 if (!MOD_RESULT)
1513                                 {
1514                                         log(DEBUG,"add_channel: checking key, invite, etc");
1515                                         MOD_RESULT = 0;
1516                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1517                                         if (MOD_RESULT == 0)
1518                                         {
1519                                                 if (strcmp(Ptr->key,""))
1520                                                 {
1521                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1522                                                         if (!key)
1523                                                         {
1524                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1525                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1526                                                                 return NULL;
1527                                                         }
1528                                                         else
1529                                                         {
1530                                                                 if (strcasecmp(key,Ptr->key))
1531                                                                 {
1532                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1533                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1534                                                                         return NULL;
1535                                                                 }
1536                                                         }
1537                                                 }
1538                                                 log(DEBUG,"add_channel: no key");
1539                                         }
1540                                         MOD_RESULT = 0;
1541                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1542                                         if (MOD_RESULT == 0)
1543                                         {
1544                                                 if (Ptr->inviteonly)
1545                                                 {
1546                                                         log(DEBUG,"add_channel: channel is +i");
1547                                                         if (user->IsInvited(Ptr->name))
1548                                                         {
1549                                                                 /* user was invited to channel */
1550                                                                 /* there may be an optional channel NOTICE here */
1551                                                         }
1552                                                         else
1553                                                         {
1554                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1555                                                                 return NULL;
1556                                                         }
1557                                                 }
1558                                                 log(DEBUG,"add_channel: channel is not +i");
1559                                         }
1560                                         MOD_RESULT = 0;
1561                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1562                                         if (MOD_RESULT == 0)
1563                                         {
1564                                                 if (Ptr->limit)
1565                                                 {
1566                                                         if (usercount(Ptr) >= Ptr->limit)
1567                                                         {
1568                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1569                                                                 return NULL;
1570                                                         }
1571                                                 }
1572                                         }
1573                                         log(DEBUG,"add_channel: about to walk banlist");
1574                                         MOD_RESULT = 0;
1575                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1576                                         if (MOD_RESULT == 0)
1577                                         {
1578                                                 /* check user against the channel banlist */
1579                                                 if (Ptr)
1580                                                 {
1581                                                         if (Ptr->bans.size())
1582                                                         {
1583                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1584                                                                 {
1585                                                                         if (match(user->GetFullHost(),i->data))
1586                                                                         {
1587                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1588                                                                                 return NULL;
1589                                                                         }
1590                                                                 }
1591                                                         }
1592                                                 }
1593                                                 log(DEBUG,"add_channel: bans checked");
1594                                         }
1595
1596                                 }
1597
1598
1599                                 if ((Ptr) && (user))
1600                                 {
1601                                         user->RemoveInvite(Ptr->name);
1602                                 }
1603
1604                                 log(DEBUG,"add_channel: invites removed");
1605
1606                         }
1607                         else
1608                         {
1609                                 log(DEBUG,"Overridden checks");
1610                         }
1611
1612
1613                 }
1614                 created = 1;
1615         }
1616
1617         log(DEBUG,"Passed channel checks");
1618
1619         for (int index =0; index != MAXCHANS; index++)
1620         {
1621                 log(DEBUG,"Check location %d",index);
1622                 if (user->chans[index].channel == NULL)
1623                 {
1624                         log(DEBUG,"Adding into their channel list at location %d",index);
1625
1626                         if (created == 2)
1627                         {
1628                                 /* first user in is given ops */
1629                                 user->chans[index].uc_modes = UCMODE_OP;
1630                         }
1631                         else
1632                         {
1633                                 user->chans[index].uc_modes = 0;
1634                         }
1635                         user->chans[index].channel = Ptr;
1636                         Ptr->IncUserCounter();
1637                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1638
1639                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1640                         {
1641                                 // use the stamdard J token with no privilages.
1642                                 char buffer[MAXBUF];
1643                                 if (created == 2)
1644                                 {
1645                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1646                                 }
1647                                 else
1648                                 {
1649                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1650                                 }
1651                                 NetSendToAll(buffer);
1652                         }
1653
1654                         log(DEBUG,"Sent JOIN to client");
1655
1656                         if (Ptr->topicset)
1657                         {
1658                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1659                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1660                         }
1661                         userlist(user,Ptr);
1662                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1663                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1664                         //WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1665                         FOREACH_MOD OnUserJoin(user,Ptr);
1666                         return Ptr;
1667                 }
1668         }
1669         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1670         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1671         return NULL;
1672 }
1673
1674 /* remove a channel from a users record, and remove the record from memory
1675  * if the channel has become empty */
1676
1677 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1678 {
1679         if ((!user) || (!cname))
1680         {
1681                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1682                 return NULL;
1683         }
1684
1685         chanrec* Ptr;
1686
1687         if ((!cname) || (!user))
1688         {
1689                 return NULL;
1690         }
1691
1692         Ptr = FindChan(cname);
1693
1694         if (!Ptr)
1695         {
1696                 return NULL;
1697         }
1698
1699         FOREACH_MOD OnUserPart(user,Ptr);
1700         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1701
1702         for (int i =0; i != MAXCHANS; i++)
1703         {
1704                 /* zap it from the channel list of the user */
1705                 if (user->chans[i].channel == Ptr)
1706                 {
1707                         if (reason)
1708                         {
1709                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1710
1711                                 if (!local)
1712                                 {
1713                                         char buffer[MAXBUF];
1714                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1715                                         NetSendToAll(buffer);
1716                                 }
1717
1718
1719                         }
1720                         else
1721                         {
1722                                 if (!local)
1723                                 {
1724                                         char buffer[MAXBUF];
1725                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1726                                         NetSendToAll(buffer);
1727                                 }
1728
1729                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1730                         }
1731                         user->chans[i].uc_modes = 0;
1732                         user->chans[i].channel = NULL;
1733                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1734                         break;
1735                 }
1736         }
1737
1738         Ptr->DecUserCounter();
1739
1740         /* if there are no users left on the channel */
1741         if (!usercount(Ptr))
1742         {
1743                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1744
1745                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1746
1747                 /* kill the record */
1748                 if (iter != chanlist.end())
1749                 {
1750                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1751                         if (iter->second) delete iter->second;
1752                         chanlist.erase(iter);
1753                 }
1754         }
1755 }
1756
1757
1758 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1759 {
1760         if ((!src) || (!user) || (!Ptr) || (!reason))
1761         {
1762                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1763                 return;
1764         }
1765
1766         if ((!Ptr) || (!user) || (!src))
1767         {
1768                 return;
1769         }
1770
1771         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1772
1773         if (!has_channel(user,Ptr))
1774         {
1775                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1776                 return;
1777         }
1778
1779         int MOD_RESULT = 0;
1780         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1781         if (MOD_RESULT == ACR_DENY)
1782                 return;
1783
1784         if (MOD_RESULT == ACR_DEFAULT)
1785         {
1786                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1787                 {
1788                         if (cstatus(src,Ptr) == STATUS_HOP)
1789                         {
1790                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1791                         }
1792                         else
1793                         {
1794                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1795                         }
1796
1797                         return;
1798                 }
1799         }
1800
1801         MOD_RESULT = 0;
1802         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1803         if (MOD_RESULT)
1804                 return;
1805
1806         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1807
1808         for (int i =0; i != MAXCHANS; i++)
1809         {
1810                 /* zap it from the channel list of the user */
1811                 if (user->chans[i].channel)
1812                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1813                 {
1814                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1815                         user->chans[i].uc_modes = 0;
1816                         user->chans[i].channel = NULL;
1817                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1818                         break;
1819                 }
1820         }
1821
1822         Ptr->DecUserCounter();
1823
1824         /* if there are no users left on the channel */
1825         if (!usercount(Ptr))
1826         {
1827                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1828
1829                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1830
1831                 /* kill the record */
1832                 if (iter != chanlist.end())
1833                 {
1834                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1835                         if (iter->second) delete iter->second;
1836                         chanlist.erase(iter);
1837                 }
1838         }
1839 }
1840
1841
1842
1843
1844 /* This function pokes and hacks at a parameter list like the following:
1845  *
1846  * PART #winbot,#darkgalaxy :m00!
1847  *
1848  * to turn it into a series of individual calls like this:
1849  *
1850  * PART #winbot :m00!
1851  * PART #darkgalaxy :m00!
1852  *
1853  * The seperate calls are sent to a callback function provided by the caller
1854  * (the caller will usually call itself recursively). The callback function
1855  * must be a command handler. Calling this function on a line with no list causes
1856  * no action to be taken. You must provide a starting and ending parameter number
1857  * where the range of the list can be found, useful if you have a terminating
1858  * parameter as above which is actually not part of the list, or parameters
1859  * before the actual list as well. This code is used by many functions which
1860  * can function as "one to list" (see the RFC) */
1861
1862 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1863 {
1864         char plist[MAXBUF];
1865         char *param;
1866         char *pars[32];
1867         char blog[32][MAXBUF];
1868         char blog2[32][MAXBUF];
1869         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
1870         char keystr[MAXBUF];
1871         char moo[MAXBUF];
1872
1873         for (int i = 0; i <32; i++)
1874                 strcpy(blog[i],"");
1875
1876         for (int i = 0; i <32; i++)
1877                 strcpy(blog2[i],"");
1878
1879         strcpy(moo,"");
1880         for (int i = 0; i <10; i++)
1881         {
1882                 if (!parameters[i])
1883                 {
1884                         parameters[i] = moo;
1885                 }
1886         }
1887         if (joins)
1888         {
1889                 if (pcnt > 1) /* we have a key to copy */
1890                 {
1891                         strlcpy(keystr,parameters[1],MAXBUF);
1892                 }
1893         }
1894
1895         if (!parameters[start])
1896         {
1897                 return 0;
1898         }
1899         if (!strchr(parameters[start],','))
1900         {
1901                 return 0;
1902         }
1903         strcpy(plist,"");
1904         for (int i = start; i <= end; i++)
1905         {
1906                 if (parameters[i])
1907                 {
1908                         strlcat(plist,parameters[i],MAXBUF);
1909                 }
1910         }
1911
1912         j = 0;
1913         param = plist;
1914
1915         t = strlen(plist);
1916         for (int i = 0; i < t; i++)
1917         {
1918                 if (plist[i] == ',')
1919                 {
1920                         plist[i] = '\0';
1921                         strlcpy(blog[j++],param,MAXBUF);
1922                         param = plist+i+1;
1923                         if (j>20)
1924                         {
1925                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
1926                                 return 1;
1927                         }
1928                 }
1929         }
1930         strlcpy(blog[j++],param,MAXBUF);
1931         total = j;
1932
1933         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
1934         {
1935                 strcat(keystr,",");
1936         }
1937
1938         if ((joins) && (keystr))
1939         {
1940                 if (strchr(keystr,','))
1941                 {
1942                         j = 0;
1943                         param = keystr;
1944                         t2 = strlen(keystr);
1945                         for (int i = 0; i < t2; i++)
1946                         {
1947                                 if (keystr[i] == ',')
1948                                 {
1949                                         keystr[i] = '\0';
1950                                         strlcpy(blog2[j++],param,MAXBUF);
1951                                         param = keystr+i+1;
1952                                 }
1953                         }
1954                         strlcpy(blog2[j++],param,MAXBUF);
1955                         total2 = j;
1956                 }
1957         }
1958
1959         for (j = 0; j < total; j++)
1960         {
1961                 if (blog[j])
1962                 {
1963                         pars[0] = blog[j];
1964                 }
1965                 for (q = end; q < pcnt-1; q++)
1966                 {
1967                         if (parameters[q+1])
1968                         {
1969                                 pars[q-end+1] = parameters[q+1];
1970                         }
1971                 }
1972                 if ((joins) && (parameters[1]))
1973                 {
1974                         if (pcnt > 1)
1975                         {
1976                                 pars[1] = blog2[j];
1977                         }
1978                         else
1979                         {
1980                                 pars[1] = NULL;
1981                         }
1982                 }
1983                 /* repeatedly call the function with the hacked parameter list */
1984                 if ((joins) && (pcnt > 1))
1985                 {
1986                         if (pars[1])
1987                         {
1988                                 // pars[1] already set up and containing key from blog2[j]
1989                                 fn(pars,2,u);
1990                         }
1991                         else
1992                         {
1993                                 pars[1] = parameters[1];
1994                                 fn(pars,2,u);
1995                         }
1996                 }
1997                 else
1998                 {
1999                         fn(pars,pcnt-(end-start),u);
2000                 }
2001         }
2002
2003         return 1;
2004 }
2005
2006
2007
2008 void kill_link(userrec *user,const char* r)
2009 {
2010         user_hash::iterator iter = clientlist.find(user->nick);
2011
2012         char reason[MAXBUF];
2013
2014         strncpy(reason,r,MAXBUF);
2015
2016         if (strlen(reason)>MAXQUIT)
2017         {
2018                 reason[MAXQUIT-1] = '\0';
2019         }
2020
2021         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2022         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2023         log(DEBUG,"closing fd %d",user->fd);
2024
2025         /* bugfix, cant close() a nonblocking socket (sux!) */
2026         if (user->registered == 7) {
2027                 FOREACH_MOD OnUserQuit(user);
2028                 WriteCommonExcept(user,"QUIT :%s",reason);
2029
2030                 // Q token must go to ALL servers!!!
2031                 char buffer[MAXBUF];
2032                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2033                 NetSendToAll(buffer);
2034         }
2035
2036         FOREACH_MOD OnUserDisconnect(user);
2037
2038         if (user->fd > -1)
2039         {
2040                 shutdown(user->fd,2);
2041                 close(user->fd);
2042         }
2043
2044         if (user->registered == 7) {
2045                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2046                 AddWhoWas(user);
2047         }
2048
2049         if (iter != clientlist.end())
2050         {
2051                 log(DEBUG,"deleting user hash value %d",iter->second);
2052                 if ((iter->second) && (user->registered == 7)) {
2053                         if (iter->second) delete iter->second;
2054                 }
2055                 clientlist.erase(iter);
2056         }
2057
2058         if (user->registered == 7) {
2059                 purge_empty_chans(user);
2060         }
2061         //user = NULL;
2062 }
2063
2064 void kill_link_silent(userrec *user,const char* r)
2065 {
2066         user_hash::iterator iter = clientlist.find(user->nick);
2067
2068         char reason[MAXBUF];
2069
2070         strncpy(reason,r,MAXBUF);
2071
2072         if (strlen(reason)>MAXQUIT)
2073         {
2074                 reason[MAXQUIT-1] = '\0';
2075         }
2076
2077         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2078         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2079         log(DEBUG,"closing fd %d",user->fd);
2080
2081         /* bugfix, cant close() a nonblocking socket (sux!) */
2082         if (user->registered == 7) {
2083                 FOREACH_MOD OnUserQuit(user);
2084                 WriteCommonExcept(user,"QUIT :%s",reason);
2085
2086                 // Q token must go to ALL servers!!!
2087                 char buffer[MAXBUF];
2088                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2089                 NetSendToAll(buffer);
2090         }
2091
2092         FOREACH_MOD OnUserDisconnect(user);
2093
2094         if (user->fd > -1)
2095         {
2096                 shutdown(user->fd,2);
2097                 close(user->fd);
2098         }
2099
2100         if (iter != clientlist.end())
2101         {
2102                 log(DEBUG,"deleting user hash value %d",iter->second);
2103                 if ((iter->second) && (user->registered == 7)) {
2104                         if (iter->second) delete iter->second;
2105                 }
2106                 clientlist.erase(iter);
2107         }
2108
2109         if (user->registered == 7) {
2110                 purge_empty_chans(user);
2111         }
2112 }
2113
2114
2115
2116 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2117
2118 char* Passwd(userrec *user)
2119 {
2120         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2121         {
2122                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2123                 {
2124                         return i->pass;
2125                 }
2126         }
2127         return "";
2128 }
2129
2130 bool IsDenied(userrec *user)
2131 {
2132         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2133         {
2134                 if (match(user->host,i->host) && (i->type == CC_DENY))
2135                 {
2136                         return true;
2137                 }
2138         }
2139         return false;
2140 }
2141
2142
2143
2144
2145 /* sends out an error notice to all connected clients (not to be used
2146  * lightly!) */
2147
2148 void send_error(char *s)
2149 {
2150         log(DEBUG,"send_error: %s",s);
2151         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2152         {
2153                 if (isnick(i->second->nick))
2154                 {
2155                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2156                 }
2157                 else
2158                 {
2159                         // fix - unregistered connections receive ERROR, not NOTICE
2160                         Write(i->second->fd,"ERROR :%s",s);
2161                 }
2162         }
2163 }
2164
2165 void Error(int status)
2166 {
2167         signal (SIGALRM, SIG_IGN);
2168         signal (SIGPIPE, SIG_IGN);
2169         signal (SIGTERM, SIG_IGN);
2170         signal (SIGABRT, SIG_IGN);
2171         signal (SIGSEGV, SIG_IGN);
2172         signal (SIGURG, SIG_IGN);
2173         signal (SIGKILL, SIG_IGN);
2174         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2175         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2176         Exit(status);
2177 }
2178
2179
2180 int main(int argc, char **argv)
2181 {
2182         Start();
2183         srand(time(NULL));
2184         log(DEBUG,"*** InspIRCd starting up!");
2185         if (!FileExists(CONFIG_FILE))
2186         {
2187                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2188                 log(DEFAULT,"main: no config");
2189                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2190                 Exit(ERROR);
2191         }
2192         if (argc > 1) {
2193                 for (int i = 1; i < argc; i++)
2194                 {
2195                         if (!strcmp(argv[i],"-nofork")) {
2196                                 nofork = true;
2197                         }
2198                         if (!strcmp(argv[i],"-wait")) {
2199                                 sleep(6);
2200                         }
2201                         if (!strcmp(argv[i],"-nolimit")) {
2202                                 unlimitcore = true;
2203                         }
2204                 }
2205         }
2206         strlcpy(MyExecutable,argv[0],MAXBUF);
2207
2208         if (InspIRCd() == ERROR)
2209         {
2210                 log(DEFAULT,"main: daemon function bailed");
2211                 printf("ERROR: could not initialise. Shutting down.\n");
2212                 Exit(ERROR);
2213         }
2214         Exit(TRUE);
2215         return 0;
2216 }
2217
2218 template<typename T> inline string ConvToStr(const T &in)
2219 {
2220         stringstream tmp;
2221         if (!(tmp << in)) return string();
2222         return tmp.str();
2223 }
2224
2225 /* re-allocates a nick in the user_hash after they change nicknames,
2226  * returns a pointer to the new user as it may have moved */
2227
2228 userrec* ReHashNick(char* Old, char* New)
2229 {
2230         user_hash::iterator newnick;
2231         user_hash::iterator oldnick = clientlist.find(Old);
2232
2233         log(DEBUG,"ReHashNick: %s %s",Old,New);
2234
2235         if (!strcasecmp(Old,New))
2236         {
2237                 log(DEBUG,"old nick is new nick, skipping");
2238                 return oldnick->second;
2239         }
2240
2241         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2242
2243         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2244
2245         clientlist[New] = new userrec();
2246         clientlist[New] = oldnick->second;
2247         clientlist.erase(oldnick);
2248
2249         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2250
2251         return clientlist[New];
2252 }
2253
2254 /* adds or updates an entry in the whowas list */
2255 void AddWhoWas(userrec* u)
2256 {
2257         user_hash::iterator iter = whowas.find(u->nick);
2258         userrec *a = new userrec();
2259         strlcpy(a->nick,u->nick,NICKMAX);
2260         strlcpy(a->ident,u->ident,64);
2261         strlcpy(a->dhost,u->dhost,256);
2262         strlcpy(a->host,u->host,256);
2263         strlcpy(a->fullname,u->fullname,128);
2264         strlcpy(a->server,u->server,256);
2265         a->signon = u->signon;
2266
2267         /* MAX_WHOWAS:   max number of /WHOWAS items
2268          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2269          *               can be replaced by a newer one
2270          */
2271
2272         if (iter == whowas.end())
2273         {
2274                 if (whowas.size() == WHOWAS_MAX)
2275                 {
2276                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2277                         {
2278                                 // 3600 seconds in an hour ;)
2279                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2280                                 {
2281                                         if (i->second) delete i->second;
2282                                         i->second = a;
2283                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2284                                         return;
2285                                 }
2286                         }
2287                 }
2288                 else
2289                 {
2290                         log(DEBUG,"added fresh WHOWAS entry");
2291                         whowas[a->nick] = a;
2292                 }
2293         }
2294         else
2295         {
2296                 log(DEBUG,"updated WHOWAS entry");
2297                 if (iter->second) delete iter->second;
2298                 iter->second = a;
2299         }
2300 }
2301
2302
2303 /* add a client connection to the sockets list */
2304 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2305 {
2306         string tempnick;
2307         char tn2[MAXBUF];
2308         user_hash::iterator iter;
2309
2310         tempnick = ConvToStr(socket) + "-unknown";
2311         sprintf(tn2,"%d-unknown",socket);
2312
2313         iter = clientlist.find(tempnick);
2314
2315         if (iter != clientlist.end()) return;
2316
2317         /*
2318          * It is OK to access the value here this way since we know
2319          * it exists, we just created it above.
2320          *
2321          * At NO other time should you access a value in a map or a
2322          * hash_map this way.
2323          */
2324         clientlist[tempnick] = new userrec();
2325
2326         NonBlocking(socket);
2327         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2328
2329         clientlist[tempnick]->fd = socket;
2330         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2331         strncpy(clientlist[tempnick]->host, host,160);
2332         strncpy(clientlist[tempnick]->dhost, host,160);
2333         strncpy(clientlist[tempnick]->server, ServerName,256);
2334         strncpy(clientlist[tempnick]->ident, "unknown",12);
2335         clientlist[tempnick]->registered = 0;
2336         clientlist[tempnick]->signon = TIME+dns_timeout;
2337         clientlist[tempnick]->lastping = 1;
2338         clientlist[tempnick]->port = port;
2339         strncpy(clientlist[tempnick]->ip,ip,32);
2340
2341         // set the registration timeout for this user
2342         unsigned long class_regtimeout = 90;
2343         int class_flood = 0;
2344
2345         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2346         {
2347                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2348                 {
2349                         class_regtimeout = (unsigned long)i->registration_timeout;
2350                         class_flood = i->flood;
2351                         clientlist[tempnick]->pingmax = i->pingtime;
2352                         break;
2353                 }
2354         }
2355
2356         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2357         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2358         clientlist[tempnick]->flood = class_flood;
2359
2360         for (int i = 0; i < MAXCHANS; i++)
2361         {
2362                 clientlist[tempnick]->chans[i].channel = NULL;
2363                 clientlist[tempnick]->chans[i].uc_modes = 0;
2364         }
2365
2366         if (clientlist.size() == MAXCLIENTS)
2367                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2368
2369
2370         char* e = matches_exception(ip);
2371         if (!e)
2372         {
2373                 char* r = matches_zline(ip);
2374                 if (r)
2375                 {
2376                         char reason[MAXBUF];
2377                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2378                         kill_link(clientlist[tempnick],reason);
2379                 }
2380         }
2381 }
2382
2383 // this function counts all users connected, wether they are registered or NOT.
2384 int usercnt(void)
2385 {
2386         return clientlist.size();
2387 }
2388
2389 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2390 int registered_usercount(void)
2391 {
2392         int c = 0;
2393         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2394         {
2395                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2396         }
2397         return c;
2398 }
2399
2400 int usercount_invisible(void)
2401 {
2402         int c = 0;
2403
2404         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2405         {
2406                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2407         }
2408         return c;
2409 }
2410
2411 int usercount_opers(void)
2412 {
2413         int c = 0;
2414
2415         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2416         {
2417                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2418         }
2419         return c;
2420 }
2421
2422 int usercount_unknown(void)
2423 {
2424         int c = 0;
2425
2426         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2427         {
2428                 if ((i->second->fd) && (i->second->registered != 7))
2429                         c++;
2430         }
2431         return c;
2432 }
2433
2434 long chancount(void)
2435 {
2436         return chanlist.size();
2437 }
2438
2439 long count_servs(void)
2440 {
2441         int c = 0;
2442         for (int i = 0; i < 32; i++)
2443         {
2444                 if (me[i] != NULL)
2445                 {
2446                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2447                         {
2448                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2449                                 {
2450                                         c++;
2451                                 }
2452                         }
2453                 }
2454         }
2455         return c;
2456 }
2457
2458 long servercount(void)
2459 {
2460         return count_servs()+1;
2461 }
2462
2463 long local_count()
2464 {
2465         int c = 0;
2466         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2467         {
2468                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2469         }
2470         return c;
2471 }
2472
2473
2474 void ShowMOTD(userrec *user)
2475 {
2476         std::string WholeMOTD = "";
2477         if (!MOTD.size())
2478         {
2479                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2480                 return;
2481         }
2482         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2483         for (int i = 0; i != MOTD.size(); i++)
2484         {
2485                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2486         }
2487         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2488         // only one write operation
2489         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2490
2491 }
2492
2493 void ShowRULES(userrec *user)
2494 {
2495         if (!RULES.size())
2496         {
2497                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2498                 return;
2499         }
2500         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2501         for (int i = 0; i != RULES.size(); i++)
2502         {
2503                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2504         }
2505         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2506 }
2507
2508 /* shows the message of the day, and any other on-logon stuff */
2509 void FullConnectUser(userrec* user)
2510 {
2511         user->registered = 7;
2512         user->idle_lastmsg = TIME;
2513         log(DEBUG,"ConnectUser: %s",user->nick);
2514
2515         if (strcmp(Passwd(user),"") && (!user->haspassed))
2516         {
2517                 kill_link(user,"Invalid password");
2518                 return;
2519         }
2520         if (IsDenied(user))
2521         {
2522                 kill_link(user,"Unauthorised connection");
2523                 return;
2524         }
2525
2526         char match_against[MAXBUF];
2527         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2528         char* e = matches_exception(match_against);
2529         if (!e)
2530         {
2531                 char* r = matches_gline(match_against);
2532                 if (r)
2533                 {
2534                         char reason[MAXBUF];
2535                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2536                         kill_link_silent(user,reason);
2537                         return;
2538                 }
2539                 r = matches_kline(user->host);
2540                 if (r)
2541                 {
2542                         char reason[MAXBUF];
2543                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2544                         kill_link_silent(user,reason);
2545                         return;
2546                 }
2547         }
2548
2549         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2550         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2551         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2552         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2553         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2554         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2555         std::stringstream v;
2556         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2557         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2558         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2559         v << std::string(Network);
2560         std::string data005 = v.str();
2561         FOREACH_MOD On005Numeric(data005);
2562         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2563         // so i'd better split it :)
2564         std::stringstream out(data005);
2565         std::string token = "";
2566         std::string line5 = "";
2567         int token_counter = 0;
2568         while (!out.eof())
2569         {
2570                 out >> token;
2571                 line5 = line5 + token + " ";
2572                 token_counter++;
2573                 if ((token_counter >= 13) || (out.eof() == true))
2574                 {
2575                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2576                         line5 = "";
2577                         token_counter = 0;
2578                 }
2579         }
2580         ShowMOTD(user);
2581         FOREACH_MOD OnUserConnect(user);
2582         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2583
2584         char buffer[MAXBUF];
2585         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);
2586         NetSendToAll(buffer);
2587 }
2588
2589
2590 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2591 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2592 // registration timeout maximum seconds)
2593 bool AllModulesReportReady(userrec* user)
2594 {
2595         for (int i = 0; i <= MODCOUNT; i++)
2596         {
2597                 int res = modules[i]->OnCheckReady(user);
2598                         if (!res)
2599                                 return false;
2600         }
2601         return true;
2602 }
2603
2604 /* shows the message of the day, and any other on-logon stuff */
2605 void ConnectUser(userrec *user)
2606 {
2607         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2608         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2609         {
2610                 FullConnectUser(user);
2611         }
2612 }
2613
2614 void handle_version(char **parameters, int pcnt, userrec *user)
2615 {
2616         char Revision[] = "$Revision$";
2617
2618         char *s1 = Revision;
2619         char *savept;
2620         char *v2 = strtok_r(s1," ",&savept);
2621         s1 = savept;
2622         v2 = strtok_r(s1," ",&savept);
2623         s1 = savept;
2624
2625         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2626 }
2627
2628
2629 // calls a handler function for a command
2630
2631 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2632 {
2633                 for (int i = 0; i < cmdlist.size(); i++)
2634                 {
2635                         if (!strcasecmp(cmdlist[i].command,commandname))
2636                         {
2637                                 if (cmdlist[i].handler_function)
2638                                 {
2639                                         if (pcnt>=cmdlist[i].min_params)
2640                                         {
2641                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2642                                                 {
2643                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2644                                                 }
2645                                         }
2646                                 }
2647                         }
2648                 }
2649 }
2650
2651 void DoSplitEveryone()
2652 {
2653         bool go_again = true;
2654         while (go_again)
2655         {
2656                 go_again = false;
2657                 for (int i = 0; i < 32; i++)
2658                 {
2659                         if (me[i] != NULL)
2660                         {
2661                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2662                                 {
2663                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2664                                         {
2665                                                 j->routes.clear();
2666                                                 j->CloseConnection();
2667                                                 me[i]->connectors.erase(j);
2668                                                 go_again = true;
2669                                                 break;
2670                                         }
2671                                 }
2672                         }
2673                 }
2674         }
2675         log(DEBUG,"Removed server. Will remove clients...");
2676         // iterate through the userlist and remove all users on this server.
2677         // because we're dealing with a mesh, we dont have to deal with anything
2678         // "down-route" from this server (nice huh)
2679         go_again = true;
2680         char reason[MAXBUF];
2681         while (go_again)
2682         {
2683                 go_again = false;
2684                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2685                 {
2686                         if (strcasecmp(u->second->server,ServerName))
2687                         {
2688                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2689                                 kill_link(u->second,reason);
2690                                 go_again = true;
2691                                 break;
2692                         }
2693                 }
2694         }
2695 }
2696
2697
2698
2699 char islast(const char* s)
2700 {
2701         char c = '`';
2702         for (int j = 0; j < 32; j++)
2703         {
2704                 if (me[j] != NULL)
2705                 {
2706                         for (int k = 0; k < me[j]->connectors.size(); k++)
2707                         {
2708                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2709                                 {
2710                                         c = '|';
2711                                 }
2712                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2713                                 {
2714                                         c = '`';
2715                                 }
2716                         }
2717                 }
2718         }
2719         return c;
2720 }
2721
2722 long map_count(const char* s)
2723 {
2724         int c = 0;
2725         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2726         {
2727                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2728         }
2729         return c;
2730 }
2731
2732
2733 void force_nickchange(userrec* user,const char* newnick)
2734 {
2735         char nick[MAXBUF];
2736         int MOD_RESULT = 0;
2737
2738         strcpy(nick,"");
2739
2740         FOREACH_RESULT(OnUserPreNick(user,newnick));
2741         if (MOD_RESULT) {
2742                 kill_link(user,"Nickname collision");
2743                 return;
2744         }
2745         if (matches_qline(newnick))
2746         {
2747                 kill_link(user,"Nickname collision");
2748                 return;
2749         }
2750
2751         if (user)
2752         {
2753                 if (newnick)
2754                 {
2755                         strncpy(nick,newnick,MAXBUF);
2756                 }
2757                 if (user->registered == 7)
2758                 {
2759                         char* pars[1];
2760                         pars[0] = nick;
2761                         handle_nick(pars,1,user);
2762                 }
2763         }
2764 }
2765
2766
2767 int process_parameters(char **command_p,char *parameters)
2768 {
2769         int j = 0;
2770         int q = strlen(parameters);
2771         if (!q)
2772         {
2773                 /* no parameters, command_p invalid! */
2774                 return 0;
2775         }
2776         if (parameters[0] == ':')
2777         {
2778                 command_p[0] = parameters+1;
2779                 return 1;
2780         }
2781         if (q)
2782         {
2783                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2784                 {
2785                         /* only one parameter */
2786                         command_p[0] = parameters;
2787                         if (parameters[0] == ':')
2788                         {
2789                                 if (strchr(parameters,' ') != NULL)
2790                                 {
2791                                         command_p[0]++;
2792                                 }
2793                         }
2794                         return 1;
2795                 }
2796         }
2797         command_p[j++] = parameters;
2798         for (int i = 0; i <= q; i++)
2799         {
2800                 if (parameters[i] == ' ')
2801                 {
2802                         command_p[j++] = parameters+i+1;
2803                         parameters[i] = '\0';
2804                         if (command_p[j-1][0] == ':')
2805                         {
2806                                 *command_p[j-1]++; /* remove dodgy ":" */
2807                                 break;
2808                                 /* parameter like this marks end of the sequence */
2809                         }
2810                 }
2811         }
2812         return j; /* returns total number of items in the list */
2813 }
2814
2815 void process_command(userrec *user, char* cmd)
2816 {
2817         char *parameters;
2818         char *command;
2819         char *command_p[127];
2820         char p[MAXBUF], temp[MAXBUF];
2821         int j, items, cmd_found;
2822
2823         for (int i = 0; i < 127; i++)
2824                 command_p[i] = NULL;
2825
2826         if (!user)
2827         {
2828                 return;
2829         }
2830         if (!cmd)
2831         {
2832                 return;
2833         }
2834         if (!strcmp(cmd,""))
2835         {
2836                 return;
2837         }
2838
2839         int total_params = 0;
2840         if (strlen(cmd)>2)
2841         {
2842                 for (int q = 0; q < strlen(cmd)-1; q++)
2843                 {
2844                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2845                         {
2846                                 total_params++;
2847                                 // found a 'trailing', we dont count them after this.
2848                                 break;
2849                         }
2850                         if (cmd[q] == ' ')
2851                                 total_params++;
2852                 }
2853         }
2854
2855         // another phidjit bug...
2856         if (total_params > 126)
2857         {
2858                 *(strchr(cmd,' ')) = '\0';
2859                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2860                 return;
2861         }
2862
2863         strlcpy(temp,cmd,MAXBUF);
2864
2865         std::string tmp = cmd;
2866         for (int i = 0; i <= MODCOUNT; i++)
2867         {
2868                 std::string oldtmp = tmp;
2869                 modules[i]->OnServerRaw(tmp,true,user);
2870                 if (oldtmp != tmp)
2871                 {
2872                         log(DEBUG,"A Module changed the input string!");
2873                         log(DEBUG,"New string: %s",tmp.c_str());
2874                         log(DEBUG,"Old string: %s",oldtmp.c_str());
2875                         break;
2876                 }
2877         }
2878         strlcpy(cmd,tmp.c_str(),MAXBUF);
2879         strlcpy(temp,cmd,MAXBUF);
2880
2881         if (!strchr(cmd,' '))
2882         {
2883                 /* no parameters, lets skip the formalities and not chop up
2884                  * the string */
2885                 log(DEBUG,"About to preprocess command with no params");
2886                 items = 0;
2887                 command_p[0] = NULL;
2888                 parameters = NULL;
2889                 for (int i = 0; i <= strlen(cmd); i++)
2890                 {
2891                         cmd[i] = toupper(cmd[i]);
2892                 }
2893                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
2894                 command = cmd;
2895         }
2896         else
2897         {
2898                 strcpy(cmd,"");
2899                 j = 0;
2900                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
2901                 for (int i = 0; i < strlen(temp); i++)
2902                 {
2903                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
2904                         {
2905                                 cmd[j++] = temp[i];
2906                                 cmd[j] = 0;
2907                         }
2908                 }
2909                 /* split the full string into a command plus parameters */
2910                 parameters = p;
2911                 strcpy(p," ");
2912                 command = cmd;
2913                 if (strchr(cmd,' '))
2914                 {
2915                         for (int i = 0; i <= strlen(cmd); i++)
2916                         {
2917                                 /* capitalise the command ONLY, leave params intact */
2918                                 cmd[i] = toupper(cmd[i]);
2919                                 /* are we nearly there yet?! :P */
2920                                 if (cmd[i] == ' ')
2921                                 {
2922                                         command = cmd;
2923                                         parameters = cmd+i+1;
2924                                         cmd[i] = '\0';
2925                                         break;
2926                                 }
2927                         }
2928                 }
2929                 else
2930                 {
2931                         for (int i = 0; i <= strlen(cmd); i++)
2932                         {
2933                                 cmd[i] = toupper(cmd[i]);
2934                         }
2935                 }
2936
2937         }
2938         cmd_found = 0;
2939
2940         if (strlen(command)>MAXCOMMAND)
2941         {
2942                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
2943                 return;
2944         }
2945
2946         for (int x = 0; x < strlen(command); x++)
2947         {
2948                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
2949                 {
2950                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
2951                         {
2952                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
2953                                 {
2954                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
2955                                         return;
2956                                 }
2957                         }
2958                 }
2959         }
2960
2961         for (int i = 0; i != cmdlist.size(); i++)
2962         {
2963                 if (strcmp(cmdlist[i].command,""))
2964                 {
2965                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
2966                         {
2967                                 log(DEBUG,"Found matching command");
2968
2969                                 if (parameters)
2970                                 {
2971                                         if (strcmp(parameters,""))
2972                                         {
2973                                                 items = process_parameters(command_p,parameters);
2974                                         }
2975                                         else
2976                                         {
2977                                                 items = 0;
2978                                                 command_p[0] = NULL;
2979                                         }
2980                                 }
2981                                 else
2982                                 {
2983                                         items = 0;
2984                                         command_p[0] = NULL;
2985                                 }
2986
2987                                 if (user)
2988                                 {
2989                                         log(DEBUG,"Processing command");
2990
2991                                         /* activity resets the ping pending timer */
2992                                         user->nping = TIME + user->pingmax;
2993                                         if ((items) < cmdlist[i].min_params)
2994                                         {
2995                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
2996                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
2997                                                 return;
2998                                         }
2999                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3000                                         {
3001                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3002                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3003                                                 cmd_found = 1;
3004                                                 return;
3005                                         }
3006                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3007                                         {
3008                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3009                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3010                                                 cmd_found = 1;
3011                                                 return;
3012                                         }
3013                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3014                                          * deny command! */
3015                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3016                                         {
3017                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3018                                                 {
3019                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3020                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3021                                                         return;
3022                                                 }
3023                                         }
3024                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3025                                         {
3026                                                 char* mycmd;
3027                                                 char* savept2;
3028                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3029                                                 while (mycmd)
3030                                                 {
3031                                                         if (!strcasecmp(mycmd,command))
3032                                                         {
3033                                                                 // command is disabled!
3034                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3035                                                                 return;
3036                                                         }
3037                                                         mycmd = strtok_r(NULL," ",&savept2);
3038                                                 }
3039
3040
3041                                         }
3042                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3043                                         {
3044                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3045                                                 if (cmdlist[i].handler_function)
3046                                                 {
3047
3048                                                         /* ikky /stats counters */
3049                                                         if (temp)
3050                                                         {
3051                                                                 if (user)
3052                                                                 {
3053                                                                         user->bytes_in += strlen(temp);
3054                                                                         user->cmds_in++;
3055                                                                         user->bytes_out+=strlen(temp);
3056                                                                         user->cmds_out++;
3057                                                                 }
3058                                                                 cmdlist[i].use_count++;
3059                                                                 cmdlist[i].total_bytes+=strlen(temp);
3060                                                         }
3061
3062                                                         int MOD_RESULT = 0;
3063                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3064                                                         if (MOD_RESULT == 1) {
3065                                                                 return;
3066                                                         }
3067
3068                                                         /* WARNING: nothing may come after the
3069                                                          * command handler call, as the handler
3070                                                          * may free the user structure! */
3071
3072                                                         cmdlist[i].handler_function(command_p,items,user);
3073                                                 }
3074                                                 return;
3075                                         }
3076                                         else
3077                                         {
3078                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3079                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3080                                                 return;
3081                                         }
3082                                 }
3083                                 cmd_found = 1;
3084                         }
3085                 }
3086         }
3087         if ((!cmd_found) && (user))
3088         {
3089                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3090                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3091         }
3092 }
3093
3094
3095 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3096 {
3097         command_t comm;
3098         /* create the command and push it onto the table */
3099         strlcpy(comm.command,cmd,MAXBUF);
3100         strlcpy(comm.source,source,MAXBUF);
3101         comm.handler_function = f;
3102         comm.flags_needed = flags;
3103         comm.min_params = minparams;
3104         comm.use_count = 0;
3105         comm.total_bytes = 0;
3106         cmdlist.push_back(comm);
3107         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3108 }
3109
3110 bool removecommands(const char* source)
3111 {
3112         bool go_again = true;
3113         while (go_again)
3114         {
3115                 go_again = false;
3116                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3117                 {
3118                         if (!strcmp(i->source,source))
3119                         {
3120                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3121                                 cmdlist.erase(i);
3122                                 go_again = true;
3123                                 break;
3124                         }
3125                 }
3126         }
3127         return true;
3128 }
3129
3130 void SetupCommandTable(void)
3131 {
3132         createcommand("USER",handle_user,0,4,"<core>");
3133         createcommand("NICK",handle_nick,0,1,"<core>");
3134         createcommand("QUIT",handle_quit,0,0,"<core>");
3135         createcommand("VERSION",handle_version,0,0,"<core>");
3136         createcommand("PING",handle_ping,0,1,"<core>");
3137         createcommand("PONG",handle_pong,0,1,"<core>");
3138         createcommand("ADMIN",handle_admin,0,0,"<core>");
3139         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3140         createcommand("INFO",handle_info,0,0,"<core>");
3141         createcommand("TIME",handle_time,0,0,"<core>");
3142         createcommand("WHOIS",handle_whois,0,1,"<core>");
3143         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3144         createcommand("NOTICE",handle_notice,0,2,"<core>");
3145         createcommand("JOIN",handle_join,0,1,"<core>");
3146         createcommand("NAMES",handle_names,0,0,"<core>");
3147         createcommand("PART",handle_part,0,1,"<core>");
3148         createcommand("KICK",handle_kick,0,2,"<core>");
3149         createcommand("MODE",handle_mode,0,1,"<core>");
3150         createcommand("TOPIC",handle_topic,0,1,"<core>");
3151         createcommand("WHO",handle_who,0,1,"<core>");
3152         createcommand("MOTD",handle_motd,0,0,"<core>");
3153         createcommand("RULES",handle_rules,0,0,"<core>");
3154         createcommand("OPER",handle_oper,0,2,"<core>");
3155         createcommand("LIST",handle_list,0,0,"<core>");
3156         createcommand("DIE",handle_die,'o',1,"<core>");
3157         createcommand("RESTART",handle_restart,'o',1,"<core>");
3158         createcommand("KILL",handle_kill,'o',2,"<core>");
3159         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3160         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3161         createcommand("STATS",handle_stats,0,1,"<core>");
3162         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3163         createcommand("AWAY",handle_away,0,0,"<core>");
3164         createcommand("ISON",handle_ison,0,0,"<core>");
3165         createcommand("SUMMON",handle_summon,0,0,"<core>");
3166         createcommand("USERS",handle_users,0,0,"<core>");
3167         createcommand("INVITE",handle_invite,0,2,"<core>");
3168         createcommand("PASS",handle_pass,0,1,"<core>");
3169         createcommand("TRACE",handle_trace,'o',0,"<core>");
3170         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3171         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3172         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3173         createcommand("MODULES",handle_modules,0,0,"<core>");
3174         createcommand("LINKS",handle_links,0,0,"<core>");
3175         createcommand("MAP",handle_map,0,0,"<core>");
3176         createcommand("KLINE",handle_kline,'o',1,"<core>");
3177         createcommand("GLINE",handle_gline,'o',1,"<core>");
3178         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3179         createcommand("QLINE",handle_qline,'o',1,"<core>");
3180         createcommand("ELINE",handle_eline,'o',1,"<core>");
3181         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3182         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3183         createcommand("SERVER",handle_server,0,0,"<core>");
3184 }
3185
3186 void process_buffer(const char* cmdbuf,userrec *user)
3187 {
3188         if (!user)
3189         {
3190                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3191                 return;
3192         }
3193         char cmd[MAXBUF];
3194         if (!cmdbuf)
3195         {
3196                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3197                 return;
3198         }
3199         if (!strcmp(cmdbuf,""))
3200         {
3201                 return;
3202         }
3203         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3204
3205         strlcpy(cmd,cmdbuf,MAXBUF);
3206         if (!strcmp(cmd,""))
3207         {
3208                 return;
3209         }
3210         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3211         {
3212                 cmd[strlen(cmd)-1] = '\0';
3213         }
3214         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3215         {
3216                 cmd[strlen(cmd)-1] = '\0';
3217         }
3218
3219         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3220         {
3221                 cmd[strlen(cmd)-1] = '\0';
3222         }
3223
3224         if (!strcmp(cmd,""))
3225         {
3226                 return;
3227         }
3228         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3229         tidystring(cmd);
3230         if ((user) && (cmd))
3231         {
3232                 process_command(user,cmd);
3233         }
3234 }
3235
3236 void DoSync(serverrec* serv, char* tcp_host)
3237 {
3238         char data[MAXBUF];
3239         log(DEBUG,"Sending sync");
3240         // send start of sync marker: Y <timestamp>
3241         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3242         // except the ones its receiving it from.
3243         snprintf(data,MAXBUF,"Y %d",TIME);
3244         serv->SendPacket(data,tcp_host);
3245         // send users and channels
3246         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3247         {
3248                 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);
3249                 serv->SendPacket(data,tcp_host);
3250                 if (strchr(u->second->modes,'o'))
3251                 {
3252                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3253                         serv->SendPacket(data,tcp_host);
3254                 }
3255                 for (int i = 0; i <= MODCOUNT; i++)
3256                 {
3257                         string_list l = modules[i]->OnUserSync(u->second);
3258                         for (int j = 0; j < l.size(); j++)
3259                         {
3260                                 strlcpy(data,l[j].c_str(),MAXBUF);
3261                                 serv->SendPacket(data,tcp_host);
3262                         }
3263                 }
3264                 if (strcmp(chlist(u->second),""))
3265                 {
3266                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3267                         serv->SendPacket(data,tcp_host);
3268                 }
3269         }
3270         // send channel modes, topics etc...
3271         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3272         {
3273                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3274                 serv->SendPacket(data,tcp_host);
3275                 for (int i = 0; i <= MODCOUNT; i++)
3276                 {
3277                         string_list l = modules[i]->OnChannelSync(c->second);
3278                         for (int j = 0; j < l.size(); j++)
3279                         {
3280                                 strlcpy(data,l[j].c_str(),MAXBUF);
3281                                 serv->SendPacket(data,tcp_host);
3282                         }
3283                 }
3284                 if (strcmp(c->second->topic,""))
3285                 {
3286                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3287                         serv->SendPacket(data,tcp_host);
3288                 }
3289                 // send current banlist
3290
3291                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3292                 {
3293                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3294                         serv->SendPacket(data,tcp_host);
3295                 }
3296         }
3297         // sync global zlines, glines, etc
3298         sync_xlines(serv,tcp_host);
3299
3300         for (int j = 0; j < 32; j++)
3301         {
3302                 if (me[j] != NULL)
3303                 {
3304                         for (int k = 0; k < me[j]->connectors.size(); k++)
3305                         {
3306                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3307                                 {
3308                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3309                                         serv->SendPacket(data,tcp_host);
3310                                         NetSendMyRoutingTable();
3311                                 }
3312                         }
3313                 }
3314         }
3315
3316         snprintf(data,MAXBUF,"F %d",TIME);
3317         serv->SendPacket(data,tcp_host);
3318         log(DEBUG,"Sent sync");
3319         // ircd sends its serverlist after the end of sync here
3320 }
3321
3322
3323 void NetSendMyRoutingTable()
3324 {
3325         // send out a line saying what is reachable to us.
3326         // E.g. if A is linked to B C and D, send out:
3327         // $ A B C D
3328         // if its only linked to B and D send out:
3329         // $ A B D
3330         // if it has no links, dont even send out the line at all.
3331         char buffer[MAXBUF];
3332         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3333         bool sendit = false;
3334         for (int i = 0; i < 32; i++)
3335         {
3336                 if (me[i] != NULL)
3337                 {
3338                         for (int j = 0; j < me[i]->connectors.size(); j++)
3339                         {
3340                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3341                                 {
3342                                         strlcat(buffer," ",MAXBUF);
3343                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3344                                         sendit = true;
3345                                 }
3346                         }
3347                 }
3348         }
3349         if (sendit)
3350                 NetSendToAll(buffer);
3351 }
3352
3353
3354 void DoSplit(const char* params)
3355 {
3356         bool go_again = true;
3357         while (go_again)
3358         {
3359                 go_again = false;
3360                 for (int i = 0; i < 32; i++)
3361                 {
3362                         if (me[i] != NULL)
3363                         {
3364                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3365                                 {
3366                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3367                                         {
3368                                                 j->routes.clear();
3369                                                 j->CloseConnection();
3370                                                 me[i]->connectors.erase(j);
3371                                                 go_again = true;
3372                                                 break;
3373                                         }
3374                                 }
3375                         }
3376                 }
3377         }
3378         log(DEBUG,"Removed server. Will remove clients...");
3379         // iterate through the userlist and remove all users on this server.
3380         // because we're dealing with a mesh, we dont have to deal with anything
3381         // "down-route" from this server (nice huh)
3382         go_again = true;
3383         char reason[MAXBUF];
3384         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3385         while (go_again)
3386         {
3387                 go_again = false;
3388                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3389                 {
3390                         if (!strcasecmp(u->second->server,params))
3391                         {
3392                                 kill_link(u->second,reason);
3393                                 go_again = true;
3394                                 break;
3395                         }
3396                 }
3397         }
3398 }
3399
3400 // removes a server. Will NOT remove its users!
3401
3402 void RemoveServer(const char* name)
3403 {
3404         bool go_again = true;
3405         while (go_again)
3406         {
3407                 go_again = false;
3408                 for (int i = 0; i < 32; i++)
3409                 {
3410                         if (me[i] != NULL)
3411                         {
3412                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3413                                 {
3414                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3415                                         {
3416                                                 j->routes.clear();
3417                                                 j->CloseConnection();
3418                                                 me[i]->connectors.erase(j);
3419                                                 go_again = true;
3420                                                 break;
3421                                         }
3422                                 }
3423                         }
3424                 }
3425         }
3426 }
3427
3428
3429 char MODERR[MAXBUF];
3430
3431 char* ModuleError()
3432 {
3433         return MODERR;
3434 }
3435
3436 void erase_factory(int j)
3437 {
3438         int v = 0;
3439         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3440         {
3441                 if (v == j)
3442                 {
3443                         factory.erase(t);
3444                         factory.push_back(NULL);
3445                         return;
3446                 }
3447                 v++;
3448         }
3449 }
3450
3451 void erase_module(int j)
3452 {
3453         int v1 = 0;
3454         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3455         {
3456                 if (v1 == j)
3457                 {
3458                         delete *m;
3459                         modules.erase(m);
3460                         modules.push_back(NULL);
3461                         break;
3462                 }
3463                 v1++;
3464         }
3465         int v2 = 0;
3466         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3467         {
3468                 if (v2 == j)
3469                 {
3470                        module_names.erase(v);
3471                        break;
3472                 }
3473                 v2++;
3474         }
3475
3476 }
3477
3478 bool UnloadModule(const char* filename)
3479 {
3480         for (int j = 0; j != module_names.size(); j++)
3481         {
3482                 if (module_names[j] == std::string(filename))
3483                 {
3484                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3485                         {
3486                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3487                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3488                                 return false;
3489                         }
3490                         // found the module
3491                         log(DEBUG,"Deleting module...");
3492                         erase_module(j);
3493                         log(DEBUG,"Erasing module entry...");
3494                         erase_factory(j);
3495                         log(DEBUG,"Removing dependent commands...");
3496                         removecommands(filename);
3497                         log(DEFAULT,"Module %s unloaded",filename);
3498                         MODCOUNT--;
3499                         return true;
3500                 }
3501         }
3502         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3503         snprintf(MODERR,MAXBUF,"Module not loaded");
3504         return false;
3505 }
3506
3507 bool DirValid(char* dirandfile)
3508 {
3509         char work[MAXBUF];
3510         strlcpy(work,dirandfile,MAXBUF);
3511         int p = strlen(work);
3512         // we just want the dir
3513         while (strlen(work))
3514         {
3515                 if (work[p] == '/')
3516                 {
3517                         work[p] = '\0';
3518                         break;
3519                 }
3520                 work[p--] = '\0';
3521         }
3522         log(DEBUG,"Dir valid: %s",work);
3523         char buffer[MAXBUF], otherdir[MAXBUF];
3524         // Get the current working directory
3525         if( getcwd( buffer, MAXBUF ) == NULL )
3526                 return false;
3527         chdir(work);
3528         if( getcwd( otherdir, MAXBUF ) == NULL )
3529                 return false;
3530         chdir(buffer);
3531         log(DEBUG,"Dir is really: %s",otherdir);
3532         if (strlen(otherdir) >= strlen(work))
3533         {
3534                 otherdir[strlen(work)] = '\0';
3535                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3536                 if (!strcmp(otherdir,work))
3537                 {
3538                         log(DEBUG,"Match ok");
3539                         return true;
3540                 }
3541                 log(DEBUG,"No match");
3542                 return false;
3543         }
3544         else return false;
3545 }
3546
3547 bool LoadModule(const char* filename)
3548 {
3549         char modfile[MAXBUF];
3550         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3551         if (!DirValid(modfile))
3552         {
3553                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3554                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3555                 return false;
3556         }
3557         log(DEBUG,"Loading module: %s",modfile);
3558         if (FileExists(modfile))
3559         {
3560                 for (int j = 0; j < module_names.size(); j++)
3561                 {
3562                         if (module_names[j] == std::string(filename))
3563                         {
3564                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3565                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3566                                 return false;
3567                         }
3568                 }
3569                 ircd_module* a = new ircd_module(modfile);
3570                 factory[MODCOUNT+1] = a;
3571                 if (factory[MODCOUNT+1]->LastError())
3572                 {
3573                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3574                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3575                         MODCOUNT--;
3576                         return false;
3577                 }
3578                 if (factory[MODCOUNT+1]->factory)
3579                 {
3580                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3581                         modules[MODCOUNT+1] = m;
3582                         /* save the module and the module's classfactory, if
3583                          * this isnt done, random crashes can occur :/ */
3584                         module_names.push_back(filename);
3585                 }
3586                 else
3587                 {
3588                         log(DEFAULT,"Unable to load %s",modfile);
3589                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3590                         return false;
3591                 }
3592         }
3593         else
3594         {
3595                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3596                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3597                 return false;
3598         }
3599         MODCOUNT++;
3600         return true;
3601 }
3602
3603 int InspIRCd(void)
3604 {
3605         struct sockaddr_in client,server;
3606         char addrs[MAXBUF][255];
3607         int incomingSockfd, result = TRUE;
3608         socklen_t length;
3609         int count = 0;
3610         int selectResult = 0, selectResult2 = 0;
3611         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3612         fd_set selectFds;
3613         timeval tv;
3614
3615         log_file = fopen("ircd.log","a+");
3616         if (!log_file)
3617         {
3618                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3619                 Exit(ERROR);
3620         }
3621
3622         log(DEBUG,"InspIRCd: startup: begin");
3623         log(DEBUG,"$Id$");
3624         if (geteuid() == 0)
3625         {
3626                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3627                 Exit(ERROR);
3628                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3629         }
3630         SetupCommandTable();
3631         log(DEBUG,"InspIRCd: startup: default command table set up");
3632
3633         ReadConfig(true,NULL);
3634         if (strcmp(DieValue,""))
3635         {
3636                 printf("WARNING: %s\n\n",DieValue);
3637                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3638                 exit(0);
3639         }
3640         log(DEBUG,"InspIRCd: startup: read config");
3641
3642         int clientportcount = 0, serverportcount = 0;
3643
3644         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3645         {
3646                 ConfValue("bind","port",count,configToken,&config_f);
3647                 ConfValue("bind","address",count,Addr,&config_f);
3648                 ConfValue("bind","type",count,Type,&config_f);
3649                 if (!strcmp(Type,"servers"))
3650                 {
3651                         char Default[MAXBUF];
3652                         strcpy(Default,"no");
3653                         ConfValue("bind","default",count,Default,&config_f);
3654                         if (strchr(Default,'y'))
3655                         {
3656                                 defaultRoute = serverportcount;
3657                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3658                         }
3659                         me[serverportcount] = new serverrec(ServerName,100L,false);
3660                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
3661                         {
3662                                 log(DEFAULT,"Warning: Failed to bind port %d",atoi(configToken));
3663                                 printf("Warning: Failed to bind port %d\n",atoi(configToken));
3664                         }
3665                         else
3666                         {
3667                                 serverportcount++;
3668                         }
3669                 }
3670                 else
3671                 {
3672                         ports[clientportcount] = atoi(configToken);
3673                         strlcpy(addrs[clientportcount],Addr,256);
3674                         clientportcount++;
3675                 }
3676                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3677         }
3678         portCount = clientportcount;
3679         UDPportCount = serverportcount;
3680
3681         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3682         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3683
3684         printf("\n");
3685
3686         /* BugFix By Craig! :p */
3687         MODCOUNT = -1;
3688         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
3689         {
3690                 ConfValue("module","name",count,configToken,&config_f);
3691                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3692                 if (!LoadModule(configToken))
3693                 {
3694                         log(DEBUG,"Exiting due to a module loader error.");
3695                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3696                         Exit(0);
3697                 }
3698         }
3699         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3700
3701         startup_time = time(NULL);
3702
3703         char PID[MAXBUF];
3704         ConfValue("pid","file",0,PID,&config_f);
3705         // write once here, to try it out and make sure its ok
3706         WritePID(PID);
3707
3708         /* setup select call */
3709         FD_ZERO(&selectFds);
3710         log(DEBUG,"InspIRCd: startup: zero selects");
3711         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3712
3713         for (count = 0; count < portCount; count++)
3714         {
3715                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3716                 {
3717                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3718                         return(ERROR);
3719                 }
3720                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3721                 {
3722                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3723                 }
3724                 else    /* well we at least bound to one socket so we'll continue */
3725                 {
3726                         boundPortCount++;
3727                 }
3728         }
3729
3730         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3731
3732         /* if we didn't bind to anything then abort */
3733         if (boundPortCount == 0)
3734         {
3735                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3736                 printf("\nERROR: Was not able to bind any of %d ports! Please check your configuration.\n\n", portCount);
3737                 return (ERROR);
3738         }
3739
3740
3741         printf("\nInspIRCd is now running!\n");
3742
3743         if (nofork)
3744         {
3745                 log(VERBOSE,"Not forking as -nofork was specified");
3746         }
3747         else
3748         {
3749                 if (DaemonSeed() == ERROR)
3750                 {
3751                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3752                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3753                         Exit(ERROR);
3754                 }
3755         }
3756
3757         WritePID(PID);
3758
3759         length = sizeof (client);
3760         char udp_msg[MAXBUF],tcp_host[MAXBUF];
3761
3762         fd_set serverfds;
3763         timeval tvs;
3764         tvs.tv_usec = 7000L;
3765         tvs.tv_sec = 0;
3766         tv.tv_sec = 0;
3767         tv.tv_usec = 7000L;
3768         char data[10240];
3769         timeval tval;
3770         fd_set sfd;
3771         tval.tv_usec = 7000L;
3772         tval.tv_sec = 0;
3773         int total_in_this_set = 0;
3774         int v = 0;
3775         bool expire_run = false;
3776
3777         /* main loop, this never returns */
3778         for (;;)
3779         {
3780 #ifdef _POSIX_PRIORITY_SCHEDULING
3781                 sched_yield();
3782 #endif
3783                 // poll dns queue
3784                 dns_poll();
3785                 FD_ZERO(&sfd);
3786
3787                 // we only read time() once per iteration rather than tons of times!
3788                 TIME = time(NULL);
3789
3790                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3791                 // them in a list, then reap the list every second or so.
3792                 if (((TIME % 5) == 0) && (!expire_run))
3793                 {
3794                         expire_lines();
3795                         FOREACH_MOD OnBackgroundTimer(TIME);
3796                         expire_run = true;
3797                         continue;
3798                 }
3799                 if ((TIME % 5) == 1)
3800                         expire_run = false;
3801
3802                 // fix by brain - this must be below any manipulation of the hashmap by modules
3803                 user_hash::iterator count2 = clientlist.begin();
3804
3805                 FD_ZERO(&serverfds);
3806
3807                 for (int x = 0; x != UDPportCount; x++)
3808                 {
3809                         if (me[x])
3810                                 FD_SET(me[x]->fd, &serverfds);
3811                 }
3812
3813                 // serverFds timevals went here
3814
3815                 tvs.tv_usec = 7000L;
3816                 tvs.tv_sec = 0;
3817                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3818                 if (servresult > 0)
3819                 {
3820                         for (int x = 0; x != UDPportCount; x++)
3821                         {
3822                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3823                                 {
3824                                         char remotehost[MAXBUF],resolved[MAXBUF];
3825                                         length = sizeof (client);
3826                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3827                                         if (incomingSockfd != -1)
3828                                         {
3829                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3830                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3831                                                 {
3832                                                         strlcpy(resolved,remotehost,MAXBUF);
3833                                                 }
3834                                                 // add to this connections ircd_connector vector
3835                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3836                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3837                                         }
3838                                 }
3839                         }
3840                 }
3841
3842                 for (int cycle = 0; cycle < 4; cycle++) for (int x = 0; x < UDPportCount; x++)
3843                 {
3844                         std::deque<std::string> msgs;
3845                         msgs.clear();
3846                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3847                         {
3848                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3849                                 {
3850                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3851                                         log(DEBUG,"Processing: %s",udp_msg);
3852                                         if (strlen(udp_msg)<1)
3853                                         {
3854                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3855                                                 break;
3856                                         }
3857                                         // during a netburst, send all data to all other linked servers
3858                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3859                                         {
3860                                                 if (is_uline(tcp_host))
3861                                                 {
3862                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3863                                                         {
3864                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3865                                                         }
3866                                                 }
3867                                                 else
3868                                                         NetSendToAllExcept(tcp_host,udp_msg);
3869                                         }
3870                                         std::string msg = udp_msg;
3871                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
3872                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
3873                                         handle_link_packet(udp_msg, tcp_host, me[x]);
3874                                 }
3875                                 goto label;
3876                         }
3877                 }
3878
3879
3880         while (count2 != clientlist.end())
3881         {
3882                 FD_ZERO(&sfd);
3883                 total_in_this_set = 0;
3884
3885                 user_hash::iterator xcount = count2;
3886                 user_hash::iterator endingiter = count2;
3887
3888                 if (count2 == clientlist.end()) break;
3889
3890                 if (count2->second)
3891                 if (count2->second->fd != 0)
3892                 {
3893                         // assemble up to 64 sockets into an fd_set
3894                         // to implement a pooling mechanism.
3895                         //
3896                         // This should be up to 64x faster than the
3897                         // old implementation.
3898                         while (total_in_this_set < 64)
3899                         {
3900                                 if (count2 != clientlist.end())
3901                                 {
3902                                         // we don't check the state of remote users.
3903                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
3904                                         {
3905                                                 FD_SET (count2->second->fd, &sfd);
3906
3907                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
3908                                                 // their connection class.
3909                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
3910                                                 {
3911                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
3912                                                         kill_link(count2->second,"Registration timeout");
3913                                                         goto label;
3914                                                 }
3915                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
3916                                                 {
3917                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
3918                                                         count2->second->dns_done = true;
3919                                                         FullConnectUser(count2->second);
3920                                                         goto label;
3921                                                 }
3922                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
3923                                                 {
3924                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
3925                                                         FullConnectUser(count2->second);
3926                                                         goto label;
3927                                                 }
3928                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
3929                                                 {
3930                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
3931                                                         {
3932                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
3933                                                                 kill_link(count2->second,"Ping timeout");
3934                                                                 goto label;
3935                                                         }
3936                                                         Write(count2->second->fd,"PING :%s",ServerName);
3937                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
3938                                                         count2->second->lastping = 0;
3939                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
3940                                                 }
3941                                         }
3942                                         count2++;
3943                                         total_in_this_set++;
3944                                 }
3945                                 else break;
3946                         }
3947
3948                         endingiter = count2;
3949                         count2 = xcount; // roll back to where we were
3950
3951                         v = 0;
3952
3953                         // tvals defined here
3954
3955                         tval.tv_usec = 7000L;
3956                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
3957
3958                         // now loop through all of the items in this pool if any are waiting
3959                         //if (selectResult2 > 0)
3960                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
3961                         {
3962
3963 #ifdef _POSIX_PRIORITY_SCHEDULING
3964                                 sched_yield();
3965 #endif
3966
3967                                 result = EAGAIN;
3968                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
3969                                 {
3970                                         memset(data, 0, 10240);
3971                                         result = read(count2a->second->fd, data, 10240);
3972
3973                                         if (result)
3974                                         {
3975                                                 // perform a check on the raw buffer as an array (not a string!) to remove
3976                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
3977                                                 // hopefully this should stop even more people whining about "Unknown command: *"
3978                                                 for (int checker = 0; checker < result; checker++)
3979                                                 {
3980                                                         if ((data[checker] == 0) || (data[checker] == 7))
3981                                                                 data[checker] = ' ';
3982                                                 }
3983                                                 userrec* current = count2a->second;
3984                                                 int currfd = current->fd;
3985                                                 char* l = strtok(data,"\n");
3986                                                 int floodlines = 0;
3987                                                 while (l)
3988                                                 {
3989                                                         floodlines++;
3990                                                         if ((floodlines > current->flood) && (current->flood != 0))
3991                                                         {
3992                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
3993                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
3994                                                                 kill_link(current,"Excess flood");
3995                                                                 goto label;
3996                                                         }
3997                                                         char sanitized[NetBufferSize];
3998                                                         memset(sanitized, 0, NetBufferSize);
3999                                                         int ptt = 0;
4000                                                         for (int pt = 0; pt < strlen(l); pt++)
4001                                                         {
4002                                                                 if (l[pt] != '\r')
4003                                                                 {
4004                                                                         sanitized[ptt++] = l[pt];
4005                                                                 }
4006                                                         }
4007                                                         sanitized[ptt] = '\0';
4008                                                         if (strlen(sanitized))
4009                                                         {
4010
4011
4012                                                                 // we're gonna re-scan to check if the nick is gone, after every
4013                                                                 // command - if it has, we're gonna bail
4014                                                                 bool find_again = false;
4015                                                                 process_buffer(sanitized,current);
4016
4017                                                                 // look for the user's record in case it's changed
4018                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4019                                                                 {
4020                                                                         if (c2->second->fd == currfd)
4021                                                                         {
4022                                                                                 // found again, update pointer
4023                                                                                 current == c2->second;
4024                                                                                 find_again = true;
4025                                                                                 break;
4026                                                                         }
4027                                                                 }
4028                                                                 if (!find_again)
4029                                                                         goto label;
4030
4031                                                         }
4032                                                         l = strtok(NULL,"\n");
4033                                                 }
4034                                                 goto label;
4035                                         }
4036
4037                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4038                                         {
4039                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4040                                                 kill_link(count2a->second,strerror(errno));
4041                                                 goto label;
4042                                         }
4043                                 }
4044                                 // result EAGAIN means nothing read
4045                                 if (result == EAGAIN)
4046                                 {
4047                                 }
4048                                 else
4049                                 if (result == 0)
4050                                 {
4051                                         if (count2->second)
4052                                         {
4053                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4054                                                 kill_link(count2a->second,"Client exited");
4055                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4056                                                 log(DEBUG,"Bailing from client exit");
4057                                                 goto label;
4058                                         }
4059                                 }
4060                                 else if (result > 0)
4061                                 {
4062                                 }
4063                         }
4064                 }
4065                 for (int q = 0; q < total_in_this_set; q++)
4066                 {
4067                         // there is no iterator += operator :(
4068                         //if (count2 != clientlist.end())
4069                         //{
4070                                 count2++;
4071                         //}
4072                 }
4073         }
4074
4075         // set up select call
4076         for (count = 0; count < boundPortCount; count++)
4077         {
4078                 FD_SET (openSockfd[count], &selectFds);
4079         }
4080
4081         tv.tv_usec = 7000L;
4082         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4083
4084         /* select is reporting a waiting socket. Poll them all to find out which */
4085         if (selectResult > 0)
4086         {
4087                 char target[MAXBUF], resolved[MAXBUF];
4088                 for (count = 0; count < boundPortCount; count++)
4089                 {
4090                         if (FD_ISSET (openSockfd[count], &selectFds))
4091                         {
4092                                 length = sizeof (client);
4093                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4094
4095                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4096                                 strlcpy (resolved, target, MAXBUF);
4097
4098                                 if (incomingSockfd < 0)
4099                                 {
4100                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4101                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4102                                 }
4103                                 else
4104                                 {
4105                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4106                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4107                                 }
4108                                 goto label;
4109                         }
4110                 }
4111         }
4112         label:
4113         if (0) {};
4114 }
4115 /* not reached */
4116 close (incomingSockfd);
4117 }
4118