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         int bytes = snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 563         chop(tb);
 564         if (sock != -1)
 565         {
 566                 write(sock,tb,bytes > 514 ? 514 : bytes);
 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         int bytes = snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 588         chop(tb);
 589         if (sock != -1)
 590         {
 591                 write(sock,tb,bytes > 514 ? 514 : bytes);
 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         int bytes = 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,bytes > 514 ? 514 : bytes);
 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
 665         std::vector<char*> *ulist = Ptr->GetUsers();
 666         for (int j = 0; j < ulist->size(); j++)
 667         {
 668                 char* o = (*ulist)[j];
 669                 userrec* otheruser = (userrec*)o;
 670                 if (otheruser->fd != FD_MAGIC_NUMBER)
 671                         WriteTo(user,otheruser,"%s",textbuffer);
 672         }
 673
 674
 675         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 676         //{
 677         //      if (has_channel(i->second,Ptr))
 678         //      {
 679         //              if (i->second->fd != FD_MAGIC_NUMBER)
 680         //                      WriteTo(user,i->second,"%s",textbuffer);
 681         //      }
 682         //}
 683 }
 684
 685 /* write formatted text from a source user to all users on a channel
 686  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 687  * users on remote servers */
 688
 689 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 690 {
 691         if ((!Ptr) || (!text))
 692         {
 693                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 694                 return;
 695         }
 696         char textbuffer[MAXBUF];
 697         va_list argsPtr;
 698         va_start (argsPtr, text);
 699         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 700         va_end(argsPtr);
 701
 702         std::vector<char*> *ulist = Ptr->GetUsers();
 703         for (int j = 0; j < ulist->size(); j++)
 704         {
 705                 char* o = (*ulist)[j];
 706                 userrec* otheruser = (userrec*)o;
 707                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1) && (otheruser != user))
 708                 {
 709                         if (!user)
 710                         {
 711                                 WriteServ(otheruser->fd,"%s",textbuffer);
 712                         }
 713                         else
 714                         {
 715                                 WriteTo(user,otheruser,"%s",textbuffer);
 716                         }
 717                 }
 718         }
 719 }
 720
 721
 722 void WriteChannelWithServ(char* ServName, chanrec* Ptr, userrec* user, char* text, ...)
 723 {
 724         if ((!Ptr) || (!user) || (!text))
 725         {
 726                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 727                 return;
 728         }
 729         char textbuffer[MAXBUF];
 730         va_list argsPtr;
 731         va_start (argsPtr, text);
 732         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 733         va_end(argsPtr);
 734
 735
 736         std::vector<char*> *ulist = Ptr->GetUsers();
 737         for (int j = 0; j < ulist->size(); j++)
 738         {
 739                 char* o = (*ulist)[j];
 740                 userrec* otheruser = (userrec*)o;
 741                 if (otheruser->fd != FD_MAGIC_NUMBER)
 742                         WriteServ(otheruser->fd,"%s",textbuffer);
 743         }
 744
 745         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 746         //{
 747         //      if (i->second)
 748         //      {
 749         //              if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 750         //              {
 751         //                      WriteServ(i->second->fd,"%s",textbuffer);
 752         //              }
 753         //      }
 754         //}
 755 }
 756
 757
 758 /* write formatted text from a source user to all users on a channel except
 759  * for the sender (for privmsg etc) */
 760
 761 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 762 {
 763         if ((!Ptr) || (!user) || (!text))
 764         {
 765                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 766                 return;
 767         }
 768         char textbuffer[MAXBUF];
 769         va_list argsPtr;
 770         va_start (argsPtr, text);
 771         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 772         va_end(argsPtr);
 773
 774         std::vector<char*> *ulist = Ptr->GetUsers();
 775         for (int j = 0; j < ulist->size(); j++)
 776         {
 777                 char* o = (*ulist)[j];
 778                 userrec* otheruser = (userrec*)o;
 779                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 780                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 781         }
 782 }
 783
 784
 785 std::string GetServerDescription(char* servername)
 786 {
 787         for (int j = 0; j < 32; j++)
 788         {
 789                 if (me[j] != NULL)
 790                 {
 791                         for (int k = 0; k < me[j]->connectors.size(); k++)
 792                         {
 793                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 794                                 {
 795                                         return me[j]->connectors[k].GetDescription();
 796                                 }
 797                         }
 798                 }
 799                 return ServerDesc; // not a remote server that can be found, it must be me.
 800         }
 801 }
 802
 803
 804 /* write a formatted string to all users who share at least one common
 805  * channel, including the source user e.g. for use in NICK */
 806
 807 void WriteCommon(userrec *u, char* text, ...)
 808 {
 809         if (!u)
 810         {
 811                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 812                 return;
 813         }
 814
 815         if (u->registered != 7) {
 816                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 817                 return;
 818         }
 819
 820         char textbuffer[MAXBUF];
 821         va_list argsPtr;
 822         va_start (argsPtr, text);
 823         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 824         va_end(argsPtr);
 825
 826         WriteFrom(u->fd,u,"%s",textbuffer);
 827
 828         for (int i = 0; i < MAXCHANS; i++)
 829         {
 830                 if (u->chans[i].channel)
 831                 {
 832                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 833                         for (int j = 0; j < ulist->size(); j++)
 834                         {
 835                                 char* o = (*ulist)[j];
 836                                 userrec* otheruser = (userrec*)o;
 837                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 838                         }
 839                 }
 840         }
 841
 842         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 843         //{
 844         //      if (i->second)
 845         //      {
 846         //              if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 847         //              {
 848         //                      WriteFrom(i->second->fd,u,"%s",textbuffer);
 849         //              }
 850         //      }
 851         //}
 852 }
 853
 854 /* write a formatted string to all users who share at least one common
 855  * channel, NOT including the source user e.g. for use in QUIT */
 856
 857 void WriteCommonExcept(userrec *u, char* text, ...)
 858 {
 859         if (!u)
 860         {
 861                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 862                 return;
 863         }
 864
 865         if (u->registered != 7) {
 866                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 867                 return;
 868         }
 869
 870         char textbuffer[MAXBUF];
 871         va_list argsPtr;
 872         va_start (argsPtr, text);
 873         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 874         va_end(argsPtr);
 875
 876         for (int i = 0; i < MAXCHANS; i++)
 877         {
 878                 if (u->chans[i].channel)
 879                 {
 880                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 881                         for (int j = 0; j < ulist->size(); j++)
 882                         {
 883                                 char* o = (*ulist)[j];
 884                                 userrec* otheruser = (userrec*)o;
 885                                 if (u != otheruser)
 886                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 887                         }
 888                 }
 889         }
 890
 891         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 892         //{
 893         //      if (i->second)
 894         //      {
 895         //              if ((common_channels(u,i->second)) && (u != i->second))
 896         //              {
 897         //                      WriteFrom(i->second->fd,u,"%s",textbuffer);
 898         //              }
 899         //      }
 900         //}
 901 }
 902
 903 void WriteOpers(char* text, ...)
 904 {
 905         if (!text)
 906         {
 907                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 908                 return;
 909         }
 910
 911         char textbuffer[MAXBUF];
 912         va_list argsPtr;
 913         va_start (argsPtr, text);
 914         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 915         va_end(argsPtr);
 916
 917         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 918         {
 919                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 920                 {
 921                         if (strchr(i->second->modes,'o'))
 922                         {
 923                                 if (strchr(i->second->modes,'s'))
 924                                 {
 925                                         // send server notices to all with +s
 926                                         // (TODO: needs SNOMASKs)
 927                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 928                                 }
 929                         }
 930                 }
 931         }
 932 }
 933
 934 // returns TRUE of any users on channel C occupy server 'servername'.
 935
 936 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 937 {
 938         log(DEBUG,"ChanAnyOnThisServer");
 939
 940         std::vector<char*> *ulist = c->GetUsers();
 941         for (int j = 0; j < ulist->size(); j++)
 942         {
 943                 char* o = (*ulist)[j];
 944                 userrec* user = (userrec*)o;
 945                 if (!strcasecmp(user->server,servername))
 946                         return true;
 947         }
 948         return false;
 949
 950         //for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 951         //{
 952         //      if (has_channel(i->second,c))
 953         //      {
 954         //              if (!strcasecmp(i->second->server,servername))
 955         //              {
 956         //                      return true;
 957         //              }
 958         //      }
 959         //}
 960         return false;
 961 }
 962
 963 // returns true if user 'u' shares any common channels with any users on server 'servername'
 964
 965 bool CommonOnThisServer(userrec* u,const char* servername)
 966 {
 967         log(DEBUG,"ChanAnyOnThisServer");
 968
 969         for (int i = 0; i < MAXCHANS; i++)
 970         {
 971                 if (u->chans[i].channel)
 972                 {
 973                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 974                         for (int j = 0; j < ulist->size(); j++)
 975                         {
 976                                 char* o = (*ulist)[j];
 977                                 userrec* user = (userrec*)o;
 978                                 if (!strcasecmp(user->server,servername))
 979                                         return true;
 980                         }
 981                 }
 982         }
 983         return false;
 984
 985         //for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 986         //{
 987         //      if ((common_channels(u,i->second)) && (u != i->second))
 988         //      {
 989         //              if (!strcasecmp(i->second->server,servername))
 990         //              {
 991         //                      log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 992         //                      return true;
 993         //              }
 994         //      }
 995         //}
 996         //return false;
 997 }
 998
 999
1000 void NetSendToCommon(userrec* u, char* s)
1001 {
1002         char buffer[MAXBUF];
1003         snprintf(buffer,MAXBUF,"%s",s);
1004
1005         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1006
1007         std::string msg = buffer;
1008         FOREACH_MOD OnPacketTransmit(msg,s);
1009         strlcpy(buffer,msg.c_str(),MAXBUF);
1010
1011         for (int j = 0; j < 32; j++)
1012         {
1013                 if (me[j] != NULL)
1014                 {
1015                         for (int k = 0; k < me[j]->connectors.size(); k++)
1016                         {
1017                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1018                                 {
1019                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1020                                 }
1021                         }
1022                 }
1023         }
1024 }
1025
1026
1027 void NetSendToAll(char* s)
1028 {
1029         char buffer[MAXBUF];
1030         snprintf(buffer,MAXBUF,"%s",s);
1031
1032         log(DEBUG,"NetSendToAll: '%s'",s);
1033
1034         std::string msg = buffer;
1035         FOREACH_MOD OnPacketTransmit(msg,s);
1036         strlcpy(buffer,msg.c_str(),MAXBUF);
1037
1038         for (int j = 0; j < 32; j++)
1039         {
1040                 if (me[j] != NULL)
1041                 {
1042                         for (int k = 0; k < me[j]->connectors.size(); k++)
1043                         {
1044                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1045                         }
1046                 }
1047         }
1048 }
1049
1050 void NetSendToAllAlive(char* s)
1051 {
1052         char buffer[MAXBUF];
1053         snprintf(buffer,MAXBUF,"%s",s);
1054
1055         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1056
1057         std::string msg = buffer;
1058         FOREACH_MOD OnPacketTransmit(msg,s);
1059         strlcpy(buffer,msg.c_str(),MAXBUF);
1060
1061         for (int j = 0; j < 32; j++)
1062         {
1063                 if (me[j] != NULL)
1064                 {
1065                         for (int k = 0; k < me[j]->connectors.size(); k++)
1066                         {
1067                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1068                                 {
1069                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1070                                 }
1071                                 else
1072                                 {
1073                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1074                                 }
1075                         }
1076                 }
1077         }
1078 }
1079
1080
1081 void NetSendToOne(char* target,char* s)
1082 {
1083         char buffer[MAXBUF];
1084         snprintf(buffer,MAXBUF,"%s",s);
1085
1086         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1087
1088         std::string msg = buffer;
1089         FOREACH_MOD OnPacketTransmit(msg,s);
1090         strlcpy(buffer,msg.c_str(),MAXBUF);
1091
1092         for (int j = 0; j < 32; j++)
1093         {
1094                 if (me[j] != NULL)
1095                 {
1096                         for (int k = 0; k < me[j]->connectors.size(); k++)
1097                         {
1098                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1099                                 {
1100                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1101                                 }
1102                         }
1103                 }
1104         }
1105 }
1106
1107 void NetSendToAllExcept(const char* target,char* s)
1108 {
1109         char buffer[MAXBUF];
1110         snprintf(buffer,MAXBUF,"%s",s);
1111
1112         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1113
1114         std::string msg = buffer;
1115         FOREACH_MOD OnPacketTransmit(msg,s);
1116         strlcpy(buffer,msg.c_str(),MAXBUF);
1117
1118         for (int j = 0; j < 32; j++)
1119         {
1120                 if (me[j] != NULL)
1121                 {
1122                         for (int k = 0; k < me[j]->connectors.size(); k++)
1123                         {
1124                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1125                                 {
1126                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1127                                 }
1128                         }
1129                 }
1130         }
1131 }
1132
1133
1134 void WriteMode(const char* modes, int flags, const char* text, ...)
1135 {
1136         if ((!text) || (!modes) || (!flags))
1137         {
1138                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1139                 return;
1140         }
1141
1142         char textbuffer[MAXBUF];
1143         va_list argsPtr;
1144         va_start (argsPtr, text);
1145         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1146         va_end(argsPtr);
1147         int modelen = strlen(modes);
1148
1149         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1150         {
1151                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1152                 {
1153                         bool send_to_user = false;
1154
1155                         if (flags == WM_AND)
1156                         {
1157                                 send_to_user = true;
1158                                 for (int n = 0; n < modelen; n++)
1159                                 {
1160                                         if (!hasumode(i->second,modes[n]))
1161                                         {
1162                                                 send_to_user = false;
1163                                                 break;
1164                                         }
1165                                 }
1166                         }
1167                         else if (flags == WM_OR)
1168                         {
1169                                 send_to_user = false;
1170                                 for (int n = 0; n < modelen; n++)
1171                                 {
1172                                         if (hasumode(i->second,modes[n]))
1173                                         {
1174                                                 send_to_user = true;
1175                                                 break;
1176                                         }
1177                                 }
1178                         }
1179
1180                         if (send_to_user)
1181                         {
1182                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1183                         }
1184                 }
1185         }
1186 }
1187
1188
1189 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1190 {
1191         if ((!text) || (!source))
1192         {
1193                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1194                 return;
1195         }
1196
1197         char textbuffer[MAXBUF];
1198         va_list argsPtr;
1199         va_start (argsPtr, text);
1200         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1201         va_end(argsPtr);
1202
1203         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1204         {
1205                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1206                 {
1207                         if (strchr(i->second->modes,'w'))
1208                         {
1209                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1210                         }
1211                 }
1212         }
1213
1214         if (!local_only)
1215         {
1216                 char buffer[MAXBUF];
1217                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1218                 NetSendToAll(buffer);
1219         }
1220 }
1221
1222 /* convert a string to lowercase. Note following special circumstances
1223  * taken from RFC 1459. Many "official" server branches still hold to this
1224  * rule so i will too;
1225  *
1226  *  Because of IRC's scandanavian origin, the characters {}| are
1227  *  considered to be the lower case equivalents of the characters []\,
1228  *  respectively. This is a critical issue when determining the
1229  *  equivalence of two nicknames.
1230  */
1231
1232 void strlower(char *n)
1233 {
1234         if (!n)
1235         {
1236                 return;
1237         }
1238         for (int i = 0; i != strlen(n); i++)
1239         {
1240                 n[i] = tolower(n[i]);
1241                 if (n[i] == '[')
1242                         n[i] = '{';
1243                 if (n[i] == ']')
1244                         n[i] = '}';
1245                 if (n[i] == '\\')
1246                         n[i] = '|';
1247         }
1248 }
1249
1250
1251
1252 /* Find a user record by nickname and return a pointer to it */
1253
1254 userrec* Find(std::string nick)
1255 {
1256         user_hash::iterator iter = clientlist.find(nick);
1257
1258         if (iter == clientlist.end())
1259                 /* Couldn't find it */
1260                 return NULL;
1261
1262         return iter->second;
1263 }
1264
1265 /* find a channel record by channel name and return a pointer to it */
1266
1267 chanrec* FindChan(const char* chan)
1268 {
1269         if (!chan)
1270         {
1271                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1272                 return NULL;
1273         }
1274
1275         chan_hash::iterator iter = chanlist.find(chan);
1276
1277         if (iter == chanlist.end())
1278                 /* Couldn't find it */
1279                 return NULL;
1280
1281         return iter->second;
1282 }
1283
1284
1285 long GetMaxBans(char* name)
1286 {
1287         char CM[MAXBUF];
1288         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1289         {
1290                 ConfValue("banlist","chan",count,CM,&config_f);
1291                 if (match(name,CM))
1292                 {
1293                         ConfValue("banlist","limit",count,CM,&config_f);
1294                         return atoi(CM);
1295                 }
1296         }
1297         return 64;
1298 }
1299
1300
1301 void purge_empty_chans(userrec* u)
1302 {
1303
1304         int go_again = 1, purge = 0;
1305
1306         // firstly decrement the count on each channel
1307         for (int f = 0; f < MAXCHANS; f++)
1308                 if (u->chans[f].channel)
1309                 {
1310                         u->chans[f].channel->DecUserCounter();
1311                         u->chans[f].channel->DelUser((char*)u);
1312                 }
1313
1314         for (int i = 0; i < MAXCHANS; i++)
1315         {
1316                 if (u->chans[i].channel)
1317                 {
1318                         if (!usercount(u->chans[i].channel))
1319                         {
1320                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1321                                 /* kill the record */
1322                                 if (i2 != chanlist.end())
1323                                 {
1324                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1325                                         if (i2->second)
1326                                                 delete i2->second;
1327                                         chanlist.erase(i2);
1328                                         go_again = 1;
1329                                         purge++;
1330                                         u->chans[i].channel = NULL;
1331                                 }
1332                         }
1333                         else
1334                         {
1335                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1336                         }
1337                 }
1338         }
1339         log(DEBUG,"completed channel purge, killed %d",purge);
1340 }
1341
1342
1343 char scratch[MAXBUF];
1344 char sparam[MAXBUF];
1345
1346 char* chanmodes(chanrec *chan)
1347 {
1348         if (!chan)
1349         {
1350                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1351                 strcpy(scratch,"");
1352                 return scratch;
1353         }
1354
1355         strcpy(scratch,"");
1356         strcpy(sparam,"");
1357         if (chan->noexternal)
1358         {
1359                 strlcat(scratch,"n",MAXMODES);
1360         }
1361         if (chan->topiclock)
1362         {
1363                 strlcat(scratch,"t",MAXMODES);
1364         }
1365         if (strcmp(chan->key,""))
1366         {
1367                 strlcat(scratch,"k",MAXMODES);
1368         }
1369         if (chan->limit)
1370         {
1371                 strlcat(scratch,"l",MAXMODES);
1372         }
1373         if (chan->inviteonly)
1374         {
1375                 strlcat(scratch,"i",MAXMODES);
1376         }
1377         if (chan->moderated)
1378         {
1379                 strlcat(scratch,"m",MAXMODES);
1380         }
1381         if (chan->secret)
1382         {
1383                 strlcat(scratch,"s",MAXMODES);
1384         }
1385         if (chan->c_private)
1386         {
1387                 strlcat(scratch,"p",MAXMODES);
1388         }
1389         if (strcmp(chan->key,""))
1390         {
1391                 strlcat(sparam," ",MAXBUF);
1392                 strlcat(sparam,chan->key,MAXBUF);
1393         }
1394         if (chan->limit)
1395         {
1396                 char foo[24];
1397                 sprintf(foo," %d",chan->limit);
1398                 strlcat(sparam,foo,MAXBUF);
1399         }
1400         if (strlen(chan->custom_modes))
1401         {
1402                 strlcat(scratch,chan->custom_modes,MAXMODES);
1403                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1404                 {
1405                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1406                         if (extparam != "")
1407                         {
1408                                 strlcat(sparam," ",MAXBUF);
1409                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1410                         }
1411                 }
1412         }
1413         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1414         strlcat(scratch,sparam,MAXMODES);
1415         return scratch;
1416 }
1417
1418
1419 /* compile a userlist of a channel into a string, each nick seperated by
1420  * spaces and op, voice etc status shown as @ and + */
1421
1422 void userlist(userrec *user,chanrec *c)
1423 {
1424         if ((!c) || (!user))
1425         {
1426                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1427                 return;
1428         }
1429
1430         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1431         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1432         {
1433                 if (has_channel(i->second,c))
1434                 {
1435                         if (isnick(i->second->nick))
1436                         {
1437                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1438                                 {
1439                                         /* user is +i, and source not on the channel, does not show
1440                                          * nick in NAMES list */
1441                                         continue;
1442                                 }
1443                                 strlcat(list,cmode(i->second,c),MAXBUF);
1444                                 strlcat(list,i->second->nick,MAXBUF);
1445                                 strlcat(list," ",MAXBUF);
1446                                 if (strlen(list)>(480-NICKMAX))
1447                                 {
1448                                         /* list overflowed into
1449                                          * multiple numerics */
1450                                         WriteServ(user->fd,"%s",list);
1451                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1452                                 }
1453                         }
1454                 }
1455         }
1456         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1457         {
1458                 WriteServ(user->fd,"%s",list);
1459         }
1460 }
1461
1462 /* return a count of the users on a specific channel accounting for
1463  * invisible users who won't increase the count. e.g. for /LIST */
1464
1465 int usercount_i(chanrec *c)
1466 {
1467         int count = 0;
1468
1469         if (!c)
1470         {
1471                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1472                 return 0;
1473         }
1474
1475         strcpy(list,"");
1476         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1477         {
1478                 if (i->second)
1479                 {
1480                         if (has_channel(i->second,c))
1481                         {
1482                                 if (isnick(i->second->nick))
1483                                 {
1484                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1485                                         {
1486                                                 /* user is +i, and source not on the channel, does not show
1487                                                  * nick in NAMES list */
1488                                                 continue;
1489                                         }
1490                                         count++;
1491                                 }
1492                         }
1493                 }
1494         }
1495         log(DEBUG,"usercount_i: %s %d",c->name,count);
1496         return count;
1497 }
1498
1499
1500 int usercount(chanrec *c)
1501 {
1502         if (!c)
1503         {
1504                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1505                 return 0;
1506         }
1507         int count = c->GetUserCounter();
1508         log(DEBUG,"usercount: %s %d",c->name,count);
1509         return count;
1510 }
1511
1512
1513 /* add a channel to a user, creating the record for it if needed and linking
1514  * it to the user record */
1515
1516 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1517 {
1518         if ((!user) || (!cn))
1519         {
1520                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1521                 return 0;
1522         }
1523
1524         chanrec* Ptr;
1525         int created = 0;
1526         char cname[MAXBUF];
1527
1528         strncpy(cname,cn,MAXBUF);
1529
1530         // we MUST declare this wherever we use FOREACH_RESULT
1531         int MOD_RESULT = 0;
1532
1533         if (strlen(cname) > CHANMAX-1)
1534         {
1535                 cname[CHANMAX-1] = '\0';
1536         }
1537
1538         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1539
1540         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1541         {
1542                 return NULL; // already on the channel!
1543         }
1544
1545
1546         if (!FindChan(cname))
1547         {
1548                 MOD_RESULT = 0;
1549                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1550                 if (MOD_RESULT == 1) {
1551                         return NULL;
1552                 }
1553
1554                 /* create a new one */
1555                 log(DEBUG,"add_channel: creating: %s",cname);
1556                 {
1557                         chanlist[cname] = new chanrec();
1558
1559                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1560                         chanlist[cname]->topiclock = 1;
1561                         chanlist[cname]->noexternal = 1;
1562                         chanlist[cname]->created = TIME;
1563                         strcpy(chanlist[cname]->topic, "");
1564                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1565                         chanlist[cname]->topicset = 0;
1566                         Ptr = chanlist[cname];
1567                         log(DEBUG,"add_channel: created: %s",cname);
1568                         /* set created to 2 to indicate user
1569                          * is the first in the channel
1570                          * and should be given ops */
1571                         created = 2;
1572                 }
1573         }
1574         else
1575         {
1576                 /* channel exists, just fish out a pointer to its struct */
1577                 Ptr = FindChan(cname);
1578                 if (Ptr)
1579                 {
1580                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1581
1582                         // the override flag allows us to bypass channel modes
1583                         // and bans (used by servers)
1584                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1585                         {
1586                                 log(DEBUG,"Not overriding...");
1587                                 MOD_RESULT = 0;
1588                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1589                                 if (MOD_RESULT == 1) {
1590                                         return NULL;
1591                                 }
1592                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1593
1594                                 if (!MOD_RESULT)
1595                                 {
1596                                         log(DEBUG,"add_channel: checking key, invite, etc");
1597                                         MOD_RESULT = 0;
1598                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1599                                         if (MOD_RESULT == 0)
1600                                         {
1601                                                 if (strcmp(Ptr->key,""))
1602                                                 {
1603                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1604                                                         if (!key)
1605                                                         {
1606                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1607                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1608                                                                 return NULL;
1609                                                         }
1610                                                         else
1611                                                         {
1612                                                                 if (strcasecmp(key,Ptr->key))
1613                                                                 {
1614                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1615                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1616                                                                         return NULL;
1617                                                                 }
1618                                                         }
1619                                                 }
1620                                                 log(DEBUG,"add_channel: no key");
1621                                         }
1622                                         MOD_RESULT = 0;
1623                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1624                                         if (MOD_RESULT == 0)
1625                                         {
1626                                                 if (Ptr->inviteonly)
1627                                                 {
1628                                                         log(DEBUG,"add_channel: channel is +i");
1629                                                         if (user->IsInvited(Ptr->name))
1630                                                         {
1631                                                                 /* user was invited to channel */
1632                                                                 /* there may be an optional channel NOTICE here */
1633                                                         }
1634                                                         else
1635                                                         {
1636                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1637                                                                 return NULL;
1638                                                         }
1639                                                 }
1640                                                 log(DEBUG,"add_channel: channel is not +i");
1641                                         }
1642                                         MOD_RESULT = 0;
1643                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1644                                         if (MOD_RESULT == 0)
1645                                         {
1646                                                 if (Ptr->limit)
1647                                                 {
1648                                                         if (usercount(Ptr) >= Ptr->limit)
1649                                                         {
1650                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1651                                                                 return NULL;
1652                                                         }
1653                                                 }
1654                                         }
1655                                         log(DEBUG,"add_channel: about to walk banlist");
1656                                         MOD_RESULT = 0;
1657                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1658                                         if (MOD_RESULT == 0)
1659                                         {
1660                                                 /* check user against the channel banlist */
1661                                                 if (Ptr)
1662                                                 {
1663                                                         if (Ptr->bans.size())
1664                                                         {
1665                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1666                                                                 {
1667                                                                         if (match(user->GetFullHost(),i->data))
1668                                                                         {
1669                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1670                                                                                 return NULL;
1671                                                                         }
1672                                                                 }
1673                                                         }
1674                                                 }
1675                                                 log(DEBUG,"add_channel: bans checked");
1676                                         }
1677
1678                                 }
1679
1680
1681                                 if ((Ptr) && (user))
1682                                 {
1683                                         user->RemoveInvite(Ptr->name);
1684                                 }
1685
1686                                 log(DEBUG,"add_channel: invites removed");
1687
1688                         }
1689                         else
1690                         {
1691                                 log(DEBUG,"Overridden checks");
1692                         }
1693
1694
1695                 }
1696                 created = 1;
1697         }
1698
1699         log(DEBUG,"Passed channel checks");
1700
1701         for (int index =0; index != MAXCHANS; index++)
1702         {
1703                 log(DEBUG,"Check location %d",index);
1704                 if (user->chans[index].channel == NULL)
1705                 {
1706                         log(DEBUG,"Adding into their channel list at location %d",index);
1707
1708                         if (created == 2)
1709                         {
1710                                 /* first user in is given ops */
1711                                 user->chans[index].uc_modes = UCMODE_OP;
1712                         }
1713                         else
1714                         {
1715                                 user->chans[index].uc_modes = 0;
1716                         }
1717                         user->chans[index].channel = Ptr;
1718                         Ptr->IncUserCounter();
1719                         Ptr->AddUser((char*)user);
1720                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1721
1722                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1723                         {
1724                                 // use the stamdard J token with no privilages.
1725                                 char buffer[MAXBUF];
1726                                 if (created == 2)
1727                                 {
1728                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1729                                 }
1730                                 else
1731                                 {
1732                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1733                                 }
1734                                 NetSendToAll(buffer);
1735                         }
1736
1737                         log(DEBUG,"Sent JOIN to client");
1738
1739                         if (Ptr->topicset)
1740                         {
1741                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1742                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1743                         }
1744                         userlist(user,Ptr);
1745                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1746                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1747                         //WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1748                         FOREACH_MOD OnUserJoin(user,Ptr);
1749                         return Ptr;
1750                 }
1751         }
1752         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1753         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1754         return NULL;
1755 }
1756
1757 /* remove a channel from a users record, and remove the record from memory
1758  * if the channel has become empty */
1759
1760 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1761 {
1762         if ((!user) || (!cname))
1763         {
1764                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1765                 return NULL;
1766         }
1767
1768         chanrec* Ptr;
1769
1770         if ((!cname) || (!user))
1771         {
1772                 return NULL;
1773         }
1774
1775         Ptr = FindChan(cname);
1776
1777         if (!Ptr)
1778         {
1779                 return NULL;
1780         }
1781
1782         FOREACH_MOD OnUserPart(user,Ptr);
1783         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1784
1785         for (int i =0; i != MAXCHANS; i++)
1786         {
1787                 /* zap it from the channel list of the user */
1788                 if (user->chans[i].channel == Ptr)
1789                 {
1790                         if (reason)
1791                         {
1792                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1793
1794                                 if (!local)
1795                                 {
1796                                         char buffer[MAXBUF];
1797                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1798                                         NetSendToAll(buffer);
1799                                 }
1800
1801
1802                         }
1803                         else
1804                         {
1805                                 if (!local)
1806                                 {
1807                                         char buffer[MAXBUF];
1808                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1809                                         NetSendToAll(buffer);
1810                                 }
1811
1812                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1813                         }
1814                         user->chans[i].uc_modes = 0;
1815                         user->chans[i].channel = NULL;
1816                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1817                         break;
1818                 }
1819         }
1820
1821         Ptr->DecUserCounter();
1822         Ptr->DelUser((char*)user);
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 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1843 {
1844         if ((!src) || (!user) || (!Ptr) || (!reason))
1845         {
1846                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1847                 return;
1848         }
1849
1850         if ((!Ptr) || (!user) || (!src))
1851         {
1852                 return;
1853         }
1854
1855         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1856
1857         if (!has_channel(user,Ptr))
1858         {
1859                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1860                 return;
1861         }
1862
1863         int MOD_RESULT = 0;
1864         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1865         if (MOD_RESULT == ACR_DENY)
1866                 return;
1867
1868         if (MOD_RESULT == ACR_DEFAULT)
1869         {
1870                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1871                 {
1872                         if (cstatus(src,Ptr) == STATUS_HOP)
1873                         {
1874                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1875                         }
1876                         else
1877                         {
1878                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1879                         }
1880
1881                         return;
1882                 }
1883         }
1884
1885         MOD_RESULT = 0;
1886         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1887         if (MOD_RESULT)
1888                 return;
1889
1890         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1891
1892         for (int i =0; i != MAXCHANS; i++)
1893         {
1894                 /* zap it from the channel list of the user */
1895                 if (user->chans[i].channel)
1896                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1897                 {
1898                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1899                         user->chans[i].uc_modes = 0;
1900                         user->chans[i].channel = NULL;
1901                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1902                         break;
1903                 }
1904         }
1905
1906         Ptr->DecUserCounter();
1907         Ptr->DelUser((char*)user);
1908
1909         /* if there are no users left on the channel */
1910         if (!usercount(Ptr))
1911         {
1912                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1913
1914                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1915
1916                 /* kill the record */
1917                 if (iter != chanlist.end())
1918                 {
1919                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1920                         if (iter->second) delete iter->second;
1921                         chanlist.erase(iter);
1922                 }
1923         }
1924 }
1925
1926
1927
1928
1929 /* This function pokes and hacks at a parameter list like the following:
1930  *
1931  * PART #winbot,#darkgalaxy :m00!
1932  *
1933  * to turn it into a series of individual calls like this:
1934  *
1935  * PART #winbot :m00!
1936  * PART #darkgalaxy :m00!
1937  *
1938  * The seperate calls are sent to a callback function provided by the caller
1939  * (the caller will usually call itself recursively). The callback function
1940  * must be a command handler. Calling this function on a line with no list causes
1941  * no action to be taken. You must provide a starting and ending parameter number
1942  * where the range of the list can be found, useful if you have a terminating
1943  * parameter as above which is actually not part of the list, or parameters
1944  * before the actual list as well. This code is used by many functions which
1945  * can function as "one to list" (see the RFC) */
1946
1947 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1948 {
1949         char plist[MAXBUF];
1950         char *param;
1951         char *pars[32];
1952         char blog[32][MAXBUF];
1953         char blog2[32][MAXBUF];
1954         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
1955         char keystr[MAXBUF];
1956         char moo[MAXBUF];
1957
1958         for (int i = 0; i <32; i++)
1959                 strcpy(blog[i],"");
1960
1961         for (int i = 0; i <32; i++)
1962                 strcpy(blog2[i],"");
1963
1964         strcpy(moo,"");
1965         for (int i = 0; i <10; i++)
1966         {
1967                 if (!parameters[i])
1968                 {
1969                         parameters[i] = moo;
1970                 }
1971         }
1972         if (joins)
1973         {
1974                 if (pcnt > 1) /* we have a key to copy */
1975                 {
1976                         strlcpy(keystr,parameters[1],MAXBUF);
1977                 }
1978         }
1979
1980         if (!parameters[start])
1981         {
1982                 return 0;
1983         }
1984         if (!strchr(parameters[start],','))
1985         {
1986                 return 0;
1987         }
1988         strcpy(plist,"");
1989         for (int i = start; i <= end; i++)
1990         {
1991                 if (parameters[i])
1992                 {
1993                         strlcat(plist,parameters[i],MAXBUF);
1994                 }
1995         }
1996
1997         j = 0;
1998         param = plist;
1999
2000         t = strlen(plist);
2001         for (int i = 0; i < t; i++)
2002         {
2003                 if (plist[i] == ',')
2004                 {
2005                         plist[i] = '\0';
2006                         strlcpy(blog[j++],param,MAXBUF);
2007                         param = plist+i+1;
2008                         if (j>20)
2009                         {
2010                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2011                                 return 1;
2012                         }
2013                 }
2014         }
2015         strlcpy(blog[j++],param,MAXBUF);
2016         total = j;
2017
2018         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2019         {
2020                 strcat(keystr,",");
2021         }
2022
2023         if ((joins) && (keystr))
2024         {
2025                 if (strchr(keystr,','))
2026                 {
2027                         j = 0;
2028                         param = keystr;
2029                         t2 = strlen(keystr);
2030                         for (int i = 0; i < t2; i++)
2031                         {
2032                                 if (keystr[i] == ',')
2033                                 {
2034                                         keystr[i] = '\0';
2035                                         strlcpy(blog2[j++],param,MAXBUF);
2036                                         param = keystr+i+1;
2037                                 }
2038                         }
2039                         strlcpy(blog2[j++],param,MAXBUF);
2040                         total2 = j;
2041                 }
2042         }
2043
2044         for (j = 0; j < total; j++)
2045         {
2046                 if (blog[j])
2047                 {
2048                         pars[0] = blog[j];
2049                 }
2050                 for (q = end; q < pcnt-1; q++)
2051                 {
2052                         if (parameters[q+1])
2053                         {
2054                                 pars[q-end+1] = parameters[q+1];
2055                         }
2056                 }
2057                 if ((joins) && (parameters[1]))
2058                 {
2059                         if (pcnt > 1)
2060                         {
2061                                 pars[1] = blog2[j];
2062                         }
2063                         else
2064                         {
2065                                 pars[1] = NULL;
2066                         }
2067                 }
2068                 /* repeatedly call the function with the hacked parameter list */
2069                 if ((joins) && (pcnt > 1))
2070                 {
2071                         if (pars[1])
2072                         {
2073                                 // pars[1] already set up and containing key from blog2[j]
2074                                 fn(pars,2,u);
2075                         }
2076                         else
2077                         {
2078                                 pars[1] = parameters[1];
2079                                 fn(pars,2,u);
2080                         }
2081                 }
2082                 else
2083                 {
2084                         fn(pars,pcnt-(end-start),u);
2085                 }
2086         }
2087
2088         return 1;
2089 }
2090
2091
2092
2093 void kill_link(userrec *user,const char* r)
2094 {
2095         user_hash::iterator iter = clientlist.find(user->nick);
2096
2097         char reason[MAXBUF];
2098
2099         strncpy(reason,r,MAXBUF);
2100
2101         if (strlen(reason)>MAXQUIT)
2102         {
2103                 reason[MAXQUIT-1] = '\0';
2104         }
2105
2106         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2107         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2108         log(DEBUG,"closing fd %d",user->fd);
2109
2110         /* bugfix, cant close() a nonblocking socket (sux!) */
2111         if (user->registered == 7) {
2112                 FOREACH_MOD OnUserQuit(user);
2113                 WriteCommonExcept(user,"QUIT :%s",reason);
2114
2115                 // Q token must go to ALL servers!!!
2116                 char buffer[MAXBUF];
2117                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2118                 NetSendToAll(buffer);
2119         }
2120
2121         FOREACH_MOD OnUserDisconnect(user);
2122
2123         if (user->fd > -1)
2124         {
2125                 shutdown(user->fd,2);
2126                 close(user->fd);
2127         }
2128
2129         if (user->registered == 7) {
2130                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2131                 AddWhoWas(user);
2132         }
2133
2134         if (iter != clientlist.end())
2135         {
2136                 log(DEBUG,"deleting user hash value %d",iter->second);
2137                 if ((iter->second) && (user->registered == 7)) {
2138                         if (iter->second) delete iter->second;
2139                 }
2140                 clientlist.erase(iter);
2141         }
2142
2143         if (user->registered == 7) {
2144                 purge_empty_chans(user);
2145         }
2146         //user = NULL;
2147 }
2148
2149 void kill_link_silent(userrec *user,const char* r)
2150 {
2151         user_hash::iterator iter = clientlist.find(user->nick);
2152
2153         char reason[MAXBUF];
2154
2155         strncpy(reason,r,MAXBUF);
2156
2157         if (strlen(reason)>MAXQUIT)
2158         {
2159                 reason[MAXQUIT-1] = '\0';
2160         }
2161
2162         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2163         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2164         log(DEBUG,"closing fd %d",user->fd);
2165
2166         /* bugfix, cant close() a nonblocking socket (sux!) */
2167         if (user->registered == 7) {
2168                 FOREACH_MOD OnUserQuit(user);
2169                 WriteCommonExcept(user,"QUIT :%s",reason);
2170
2171                 // Q token must go to ALL servers!!!
2172                 char buffer[MAXBUF];
2173                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2174                 NetSendToAll(buffer);
2175         }
2176
2177         FOREACH_MOD OnUserDisconnect(user);
2178
2179         if (user->fd > -1)
2180         {
2181                 shutdown(user->fd,2);
2182                 close(user->fd);
2183         }
2184
2185         if (iter != clientlist.end())
2186         {
2187                 log(DEBUG,"deleting user hash value %d",iter->second);
2188                 if ((iter->second) && (user->registered == 7)) {
2189                         if (iter->second) delete iter->second;
2190                 }
2191                 clientlist.erase(iter);
2192         }
2193
2194         if (user->registered == 7) {
2195                 purge_empty_chans(user);
2196         }
2197 }
2198
2199
2200
2201 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2202
2203 char* Passwd(userrec *user)
2204 {
2205         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2206         {
2207                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2208                 {
2209                         return i->pass;
2210                 }
2211         }
2212         return "";
2213 }
2214
2215 bool IsDenied(userrec *user)
2216 {
2217         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2218         {
2219                 if (match(user->host,i->host) && (i->type == CC_DENY))
2220                 {
2221                         return true;
2222                 }
2223         }
2224         return false;
2225 }
2226
2227
2228
2229
2230 /* sends out an error notice to all connected clients (not to be used
2231  * lightly!) */
2232
2233 void send_error(char *s)
2234 {
2235         log(DEBUG,"send_error: %s",s);
2236         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2237         {
2238                 if (isnick(i->second->nick))
2239                 {
2240                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2241                 }
2242                 else
2243                 {
2244                         // fix - unregistered connections receive ERROR, not NOTICE
2245                         Write(i->second->fd,"ERROR :%s",s);
2246                 }
2247         }
2248 }
2249
2250 void Error(int status)
2251 {
2252         signal (SIGALRM, SIG_IGN);
2253         signal (SIGPIPE, SIG_IGN);
2254         signal (SIGTERM, SIG_IGN);
2255         signal (SIGABRT, SIG_IGN);
2256         signal (SIGSEGV, SIG_IGN);
2257         signal (SIGURG, SIG_IGN);
2258         signal (SIGKILL, SIG_IGN);
2259         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2260         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2261         Exit(status);
2262 }
2263
2264
2265 int main(int argc, char **argv)
2266 {
2267         Start();
2268         srand(time(NULL));
2269         log(DEBUG,"*** InspIRCd starting up!");
2270         if (!FileExists(CONFIG_FILE))
2271         {
2272                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2273                 log(DEFAULT,"main: no config");
2274                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2275                 Exit(ERROR);
2276         }
2277         if (argc > 1) {
2278                 for (int i = 1; i < argc; i++)
2279                 {
2280                         if (!strcmp(argv[i],"-nofork")) {
2281                                 nofork = true;
2282                         }
2283                         if (!strcmp(argv[i],"-wait")) {
2284                                 sleep(6);
2285                         }
2286                         if (!strcmp(argv[i],"-nolimit")) {
2287                                 unlimitcore = true;
2288                         }
2289                 }
2290         }
2291         strlcpy(MyExecutable,argv[0],MAXBUF);
2292
2293         if (InspIRCd() == ERROR)
2294         {
2295                 log(DEFAULT,"main: daemon function bailed");
2296                 printf("ERROR: could not initialise. Shutting down.\n");
2297                 Exit(ERROR);
2298         }
2299         Exit(TRUE);
2300         return 0;
2301 }
2302
2303 template<typename T> inline string ConvToStr(const T &in)
2304 {
2305         stringstream tmp;
2306         if (!(tmp << in)) return string();
2307         return tmp.str();
2308 }
2309
2310 /* re-allocates a nick in the user_hash after they change nicknames,
2311  * returns a pointer to the new user as it may have moved */
2312
2313 userrec* ReHashNick(char* Old, char* New)
2314 {
2315         user_hash::iterator newnick;
2316         user_hash::iterator oldnick = clientlist.find(Old);
2317
2318         log(DEBUG,"ReHashNick: %s %s",Old,New);
2319
2320         if (!strcasecmp(Old,New))
2321         {
2322                 log(DEBUG,"old nick is new nick, skipping");
2323                 return oldnick->second;
2324         }
2325
2326         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2327
2328         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2329
2330         clientlist[New] = new userrec();
2331         clientlist[New] = oldnick->second;
2332         clientlist.erase(oldnick);
2333
2334         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2335
2336         return clientlist[New];
2337 }
2338
2339 /* adds or updates an entry in the whowas list */
2340 void AddWhoWas(userrec* u)
2341 {
2342         user_hash::iterator iter = whowas.find(u->nick);
2343         userrec *a = new userrec();
2344         strlcpy(a->nick,u->nick,NICKMAX);
2345         strlcpy(a->ident,u->ident,64);
2346         strlcpy(a->dhost,u->dhost,256);
2347         strlcpy(a->host,u->host,256);
2348         strlcpy(a->fullname,u->fullname,128);
2349         strlcpy(a->server,u->server,256);
2350         a->signon = u->signon;
2351
2352         /* MAX_WHOWAS:   max number of /WHOWAS items
2353          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2354          *               can be replaced by a newer one
2355          */
2356
2357         if (iter == whowas.end())
2358         {
2359                 if (whowas.size() == WHOWAS_MAX)
2360                 {
2361                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2362                         {
2363                                 // 3600 seconds in an hour ;)
2364                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2365                                 {
2366                                         if (i->second) delete i->second;
2367                                         i->second = a;
2368                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2369                                         return;
2370                                 }
2371                         }
2372                 }
2373                 else
2374                 {
2375                         log(DEBUG,"added fresh WHOWAS entry");
2376                         whowas[a->nick] = a;
2377                 }
2378         }
2379         else
2380         {
2381                 log(DEBUG,"updated WHOWAS entry");
2382                 if (iter->second) delete iter->second;
2383                 iter->second = a;
2384         }
2385 }
2386
2387
2388 /* add a client connection to the sockets list */
2389 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2390 {
2391         string tempnick;
2392         char tn2[MAXBUF];
2393         user_hash::iterator iter;
2394
2395         tempnick = ConvToStr(socket) + "-unknown";
2396         sprintf(tn2,"%d-unknown",socket);
2397
2398         iter = clientlist.find(tempnick);
2399
2400         if (iter != clientlist.end()) return;
2401
2402         /*
2403          * It is OK to access the value here this way since we know
2404          * it exists, we just created it above.
2405          *
2406          * At NO other time should you access a value in a map or a
2407          * hash_map this way.
2408          */
2409         clientlist[tempnick] = new userrec();
2410
2411         NonBlocking(socket);
2412         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2413
2414         clientlist[tempnick]->fd = socket;
2415         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2416         strncpy(clientlist[tempnick]->host, host,160);
2417         strncpy(clientlist[tempnick]->dhost, host,160);
2418         strncpy(clientlist[tempnick]->server, ServerName,256);
2419         strncpy(clientlist[tempnick]->ident, "unknown",12);
2420         clientlist[tempnick]->registered = 0;
2421         clientlist[tempnick]->signon = TIME+dns_timeout;
2422         clientlist[tempnick]->lastping = 1;
2423         clientlist[tempnick]->port = port;
2424         strncpy(clientlist[tempnick]->ip,ip,32);
2425
2426         // set the registration timeout for this user
2427         unsigned long class_regtimeout = 90;
2428         int class_flood = 0;
2429
2430         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2431         {
2432                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2433                 {
2434                         class_regtimeout = (unsigned long)i->registration_timeout;
2435                         class_flood = i->flood;
2436                         clientlist[tempnick]->pingmax = i->pingtime;
2437                         break;
2438                 }
2439         }
2440
2441         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2442         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2443         clientlist[tempnick]->flood = class_flood;
2444
2445         for (int i = 0; i < MAXCHANS; i++)
2446         {
2447                 clientlist[tempnick]->chans[i].channel = NULL;
2448                 clientlist[tempnick]->chans[i].uc_modes = 0;
2449         }
2450
2451         if (clientlist.size() == MAXCLIENTS)
2452                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2453
2454
2455         char* e = matches_exception(ip);
2456         if (!e)
2457         {
2458                 char* r = matches_zline(ip);
2459                 if (r)
2460                 {
2461                         char reason[MAXBUF];
2462                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2463                         kill_link(clientlist[tempnick],reason);
2464                 }
2465         }
2466 }
2467
2468 // this function counts all users connected, wether they are registered or NOT.
2469 int usercnt(void)
2470 {
2471         return clientlist.size();
2472 }
2473
2474 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2475 int registered_usercount(void)
2476 {
2477         int c = 0;
2478         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2479         {
2480                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2481         }
2482         return c;
2483 }
2484
2485 int usercount_invisible(void)
2486 {
2487         int c = 0;
2488
2489         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2490         {
2491                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2492         }
2493         return c;
2494 }
2495
2496 int usercount_opers(void)
2497 {
2498         int c = 0;
2499
2500         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2501         {
2502                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2503         }
2504         return c;
2505 }
2506
2507 int usercount_unknown(void)
2508 {
2509         int c = 0;
2510
2511         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2512         {
2513                 if ((i->second->fd) && (i->second->registered != 7))
2514                         c++;
2515         }
2516         return c;
2517 }
2518
2519 long chancount(void)
2520 {
2521         return chanlist.size();
2522 }
2523
2524 long count_servs(void)
2525 {
2526         int c = 0;
2527         for (int i = 0; i < 32; i++)
2528         {
2529                 if (me[i] != NULL)
2530                 {
2531                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2532                         {
2533                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2534                                 {
2535                                         c++;
2536                                 }
2537                         }
2538                 }
2539         }
2540         return c;
2541 }
2542
2543 long servercount(void)
2544 {
2545         return count_servs()+1;
2546 }
2547
2548 long local_count()
2549 {
2550         int c = 0;
2551         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2552         {
2553                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2554         }
2555         return c;
2556 }
2557
2558
2559 void ShowMOTD(userrec *user)
2560 {
2561         std::string WholeMOTD = "";
2562         if (!MOTD.size())
2563         {
2564                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2565                 return;
2566         }
2567         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2568         for (int i = 0; i != MOTD.size(); i++)
2569         {
2570                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2571         }
2572         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2573         // only one write operation
2574         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2575
2576 }
2577
2578 void ShowRULES(userrec *user)
2579 {
2580         if (!RULES.size())
2581         {
2582                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2583                 return;
2584         }
2585         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2586         for (int i = 0; i != RULES.size(); i++)
2587         {
2588                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2589         }
2590         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2591 }
2592
2593 /* shows the message of the day, and any other on-logon stuff */
2594 void FullConnectUser(userrec* user)
2595 {
2596         user->registered = 7;
2597         user->idle_lastmsg = TIME;
2598         log(DEBUG,"ConnectUser: %s",user->nick);
2599
2600         if (strcmp(Passwd(user),"") && (!user->haspassed))
2601         {
2602                 kill_link(user,"Invalid password");
2603                 return;
2604         }
2605         if (IsDenied(user))
2606         {
2607                 kill_link(user,"Unauthorised connection");
2608                 return;
2609         }
2610
2611         char match_against[MAXBUF];
2612         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2613         char* e = matches_exception(match_against);
2614         if (!e)
2615         {
2616                 char* r = matches_gline(match_against);
2617                 if (r)
2618                 {
2619                         char reason[MAXBUF];
2620                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2621                         kill_link_silent(user,reason);
2622                         return;
2623                 }
2624                 r = matches_kline(user->host);
2625                 if (r)
2626                 {
2627                         char reason[MAXBUF];
2628                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2629                         kill_link_silent(user,reason);
2630                         return;
2631                 }
2632         }
2633
2634         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2635         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2636         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2637         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2638         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2639         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2640         std::stringstream v;
2641         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2642         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2643         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2644         v << std::string(Network);
2645         std::string data005 = v.str();
2646         FOREACH_MOD On005Numeric(data005);
2647         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2648         // so i'd better split it :)
2649         std::stringstream out(data005);
2650         std::string token = "";
2651         std::string line5 = "";
2652         int token_counter = 0;
2653         while (!out.eof())
2654         {
2655                 out >> token;
2656                 line5 = line5 + token + " ";
2657                 token_counter++;
2658                 if ((token_counter >= 13) || (out.eof() == true))
2659                 {
2660                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2661                         line5 = "";
2662                         token_counter = 0;
2663                 }
2664         }
2665         ShowMOTD(user);
2666         FOREACH_MOD OnUserConnect(user);
2667         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2668
2669         char buffer[MAXBUF];
2670         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);
2671         NetSendToAll(buffer);
2672 }
2673
2674
2675 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2676 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2677 // registration timeout maximum seconds)
2678 bool AllModulesReportReady(userrec* user)
2679 {
2680         for (int i = 0; i <= MODCOUNT; i++)
2681         {
2682                 int res = modules[i]->OnCheckReady(user);
2683                         if (!res)
2684                                 return false;
2685         }
2686         return true;
2687 }
2688
2689 /* shows the message of the day, and any other on-logon stuff */
2690 void ConnectUser(userrec *user)
2691 {
2692         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2693         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2694         {
2695                 FullConnectUser(user);
2696         }
2697 }
2698
2699 void handle_version(char **parameters, int pcnt, userrec *user)
2700 {
2701         char Revision[] = "$Revision$";
2702
2703         char *s1 = Revision;
2704         char *savept;
2705         char *v2 = strtok_r(s1," ",&savept);
2706         s1 = savept;
2707         v2 = strtok_r(s1," ",&savept);
2708         s1 = savept;
2709
2710         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2711 }
2712
2713
2714 // calls a handler function for a command
2715
2716 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2717 {
2718                 for (int i = 0; i < cmdlist.size(); i++)
2719                 {
2720                         if (!strcasecmp(cmdlist[i].command,commandname))
2721                         {
2722                                 if (cmdlist[i].handler_function)
2723                                 {
2724                                         if (pcnt>=cmdlist[i].min_params)
2725                                         {
2726                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2727                                                 {
2728                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2729                                                 }
2730                                         }
2731                                 }
2732                         }
2733                 }
2734 }
2735
2736 void DoSplitEveryone()
2737 {
2738         bool go_again = true;
2739         while (go_again)
2740         {
2741                 go_again = false;
2742                 for (int i = 0; i < 32; i++)
2743                 {
2744                         if (me[i] != NULL)
2745                         {
2746                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2747                                 {
2748                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2749                                         {
2750                                                 j->routes.clear();
2751                                                 j->CloseConnection();
2752                                                 me[i]->connectors.erase(j);
2753                                                 go_again = true;
2754                                                 break;
2755                                         }
2756                                 }
2757                         }
2758                 }
2759         }
2760         log(DEBUG,"Removed server. Will remove clients...");
2761         // iterate through the userlist and remove all users on this server.
2762         // because we're dealing with a mesh, we dont have to deal with anything
2763         // "down-route" from this server (nice huh)
2764         go_again = true;
2765         char reason[MAXBUF];
2766         while (go_again)
2767         {
2768                 go_again = false;
2769                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2770                 {
2771                         if (strcasecmp(u->second->server,ServerName))
2772                         {
2773                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2774                                 kill_link(u->second,reason);
2775                                 go_again = true;
2776                                 break;
2777                         }
2778                 }
2779         }
2780 }
2781
2782
2783
2784 char islast(const char* s)
2785 {
2786         char c = '`';
2787         for (int j = 0; j < 32; j++)
2788         {
2789                 if (me[j] != NULL)
2790                 {
2791                         for (int k = 0; k < me[j]->connectors.size(); k++)
2792                         {
2793                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2794                                 {
2795                                         c = '|';
2796                                 }
2797                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2798                                 {
2799                                         c = '`';
2800                                 }
2801                         }
2802                 }
2803         }
2804         return c;
2805 }
2806
2807 long map_count(const char* s)
2808 {
2809         int c = 0;
2810         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2811         {
2812                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2813         }
2814         return c;
2815 }
2816
2817
2818 void force_nickchange(userrec* user,const char* newnick)
2819 {
2820         char nick[MAXBUF];
2821         int MOD_RESULT = 0;
2822
2823         strcpy(nick,"");
2824
2825         FOREACH_RESULT(OnUserPreNick(user,newnick));
2826         if (MOD_RESULT) {
2827                 kill_link(user,"Nickname collision");
2828                 return;
2829         }
2830         if (matches_qline(newnick))
2831         {
2832                 kill_link(user,"Nickname collision");
2833                 return;
2834         }
2835
2836         if (user)
2837         {
2838                 if (newnick)
2839                 {
2840                         strncpy(nick,newnick,MAXBUF);
2841                 }
2842                 if (user->registered == 7)
2843                 {
2844                         char* pars[1];
2845                         pars[0] = nick;
2846                         handle_nick(pars,1,user);
2847                 }
2848         }
2849 }
2850
2851
2852 int process_parameters(char **command_p,char *parameters)
2853 {
2854         int j = 0;
2855         int q = strlen(parameters);
2856         if (!q)
2857         {
2858                 /* no parameters, command_p invalid! */
2859                 return 0;
2860         }
2861         if (parameters[0] == ':')
2862         {
2863                 command_p[0] = parameters+1;
2864                 return 1;
2865         }
2866         if (q)
2867         {
2868                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2869                 {
2870                         /* only one parameter */
2871                         command_p[0] = parameters;
2872                         if (parameters[0] == ':')
2873                         {
2874                                 if (strchr(parameters,' ') != NULL)
2875                                 {
2876                                         command_p[0]++;
2877                                 }
2878                         }
2879                         return 1;
2880                 }
2881         }
2882         command_p[j++] = parameters;
2883         for (int i = 0; i <= q; i++)
2884         {
2885                 if (parameters[i] == ' ')
2886                 {
2887                         command_p[j++] = parameters+i+1;
2888                         parameters[i] = '\0';
2889                         if (command_p[j-1][0] == ':')
2890                         {
2891                                 *command_p[j-1]++; /* remove dodgy ":" */
2892                                 break;
2893                                 /* parameter like this marks end of the sequence */
2894                         }
2895                 }
2896         }
2897         return j; /* returns total number of items in the list */
2898 }
2899
2900 void process_command(userrec *user, char* cmd)
2901 {
2902         char *parameters;
2903         char *command;
2904         char *command_p[127];
2905         char p[MAXBUF], temp[MAXBUF];
2906         int j, items, cmd_found;
2907
2908         for (int i = 0; i < 127; i++)
2909                 command_p[i] = NULL;
2910
2911         if (!user)
2912         {
2913                 return;
2914         }
2915         if (!cmd)
2916         {
2917                 return;
2918         }
2919         if (!strcmp(cmd,""))
2920         {
2921                 return;
2922         }
2923
2924         int total_params = 0;
2925         if (strlen(cmd)>2)
2926         {
2927                 for (int q = 0; q < strlen(cmd)-1; q++)
2928                 {
2929                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2930                         {
2931                                 total_params++;
2932                                 // found a 'trailing', we dont count them after this.
2933                                 break;
2934                         }
2935                         if (cmd[q] == ' ')
2936                                 total_params++;
2937                 }
2938         }
2939
2940         // another phidjit bug...
2941         if (total_params > 126)
2942         {
2943                 *(strchr(cmd,' ')) = '\0';
2944                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2945                 return;
2946         }
2947
2948         strlcpy(temp,cmd,MAXBUF);
2949
2950         std::string tmp = cmd;
2951         for (int i = 0; i <= MODCOUNT; i++)
2952         {
2953                 std::string oldtmp = tmp;
2954                 modules[i]->OnServerRaw(tmp,true,user);
2955                 if (oldtmp != tmp)
2956                 {
2957                         log(DEBUG,"A Module changed the input string!");
2958                         log(DEBUG,"New string: %s",tmp.c_str());
2959                         log(DEBUG,"Old string: %s",oldtmp.c_str());
2960                         break;
2961                 }
2962         }
2963         strlcpy(cmd,tmp.c_str(),MAXBUF);
2964         strlcpy(temp,cmd,MAXBUF);
2965
2966         if (!strchr(cmd,' '))
2967         {
2968                 /* no parameters, lets skip the formalities and not chop up
2969                  * the string */
2970                 log(DEBUG,"About to preprocess command with no params");
2971                 items = 0;
2972                 command_p[0] = NULL;
2973                 parameters = NULL;
2974                 for (int i = 0; i <= strlen(cmd); i++)
2975                 {
2976                         cmd[i] = toupper(cmd[i]);
2977                 }
2978                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
2979                 command = cmd;
2980         }
2981         else
2982         {
2983                 strcpy(cmd,"");
2984                 j = 0;
2985                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
2986                 for (int i = 0; i < strlen(temp); i++)
2987                 {
2988                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
2989                         {
2990                                 cmd[j++] = temp[i];
2991                                 cmd[j] = 0;
2992                         }
2993                 }
2994                 /* split the full string into a command plus parameters */
2995                 parameters = p;
2996                 strcpy(p," ");
2997                 command = cmd;
2998                 if (strchr(cmd,' '))
2999                 {
3000                         for (int i = 0; i <= strlen(cmd); i++)
3001                         {
3002                                 /* capitalise the command ONLY, leave params intact */
3003                                 cmd[i] = toupper(cmd[i]);
3004                                 /* are we nearly there yet?! :P */
3005                                 if (cmd[i] == ' ')
3006                                 {
3007                                         command = cmd;
3008                                         parameters = cmd+i+1;
3009                                         cmd[i] = '\0';
3010                                         break;
3011                                 }
3012                         }
3013                 }
3014                 else
3015                 {
3016                         for (int i = 0; i <= strlen(cmd); i++)
3017                         {
3018                                 cmd[i] = toupper(cmd[i]);
3019                         }
3020                 }
3021
3022         }
3023         cmd_found = 0;
3024
3025         if (strlen(command)>MAXCOMMAND)
3026         {
3027                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3028                 return;
3029         }
3030
3031         for (int x = 0; x < strlen(command); x++)
3032         {
3033                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3034                 {
3035                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3036                         {
3037                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3038                                 {
3039                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3040                                         return;
3041                                 }
3042                         }
3043                 }
3044         }
3045
3046         for (int i = 0; i != cmdlist.size(); i++)
3047         {
3048                 if (strcmp(cmdlist[i].command,""))
3049                 {
3050                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3051                         {
3052                                 log(DEBUG,"Found matching command");
3053
3054                                 if (parameters)
3055                                 {
3056                                         if (strcmp(parameters,""))
3057                                         {
3058                                                 items = process_parameters(command_p,parameters);
3059                                         }
3060                                         else
3061                                         {
3062                                                 items = 0;
3063                                                 command_p[0] = NULL;
3064                                         }
3065                                 }
3066                                 else
3067                                 {
3068                                         items = 0;
3069                                         command_p[0] = NULL;
3070                                 }
3071
3072                                 if (user)
3073                                 {
3074                                         log(DEBUG,"Processing command");
3075
3076                                         /* activity resets the ping pending timer */
3077                                         user->nping = TIME + user->pingmax;
3078                                         if ((items) < cmdlist[i].min_params)
3079                                         {
3080                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3081                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3082                                                 return;
3083                                         }
3084                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3085                                         {
3086                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3087                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3088                                                 cmd_found = 1;
3089                                                 return;
3090                                         }
3091                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3092                                         {
3093                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3094                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3095                                                 cmd_found = 1;
3096                                                 return;
3097                                         }
3098                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3099                                          * deny command! */
3100                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3101                                         {
3102                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3103                                                 {
3104                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3105                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3106                                                         return;
3107                                                 }
3108                                         }
3109                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3110                                         {
3111                                                 char* mycmd;
3112                                                 char* savept2;
3113                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3114                                                 while (mycmd)
3115                                                 {
3116                                                         if (!strcasecmp(mycmd,command))
3117                                                         {
3118                                                                 // command is disabled!
3119                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3120                                                                 return;
3121                                                         }
3122                                                         mycmd = strtok_r(NULL," ",&savept2);
3123                                                 }
3124
3125
3126                                         }
3127                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3128                                         {
3129                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3130                                                 if (cmdlist[i].handler_function)
3131                                                 {
3132
3133                                                         /* ikky /stats counters */
3134                                                         if (temp)
3135                                                         {
3136                                                                 if (user)
3137                                                                 {
3138                                                                         user->bytes_in += strlen(temp);
3139                                                                         user->cmds_in++;
3140                                                                         user->bytes_out+=strlen(temp);
3141                                                                         user->cmds_out++;
3142                                                                 }
3143                                                                 cmdlist[i].use_count++;
3144                                                                 cmdlist[i].total_bytes+=strlen(temp);
3145                                                         }
3146
3147                                                         int MOD_RESULT = 0;
3148                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3149                                                         if (MOD_RESULT == 1) {
3150                                                                 return;
3151                                                         }
3152
3153                                                         /* WARNING: nothing may come after the
3154                                                          * command handler call, as the handler
3155                                                          * may free the user structure! */
3156
3157                                                         cmdlist[i].handler_function(command_p,items,user);
3158                                                 }
3159                                                 return;
3160                                         }
3161                                         else
3162                                         {
3163                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3164                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3165                                                 return;
3166                                         }
3167                                 }
3168                                 cmd_found = 1;
3169                         }
3170                 }
3171         }
3172         if ((!cmd_found) && (user))
3173         {
3174                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3175                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3176         }
3177 }
3178
3179
3180 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3181 {
3182         command_t comm;
3183         /* create the command and push it onto the table */
3184         strlcpy(comm.command,cmd,MAXBUF);
3185         strlcpy(comm.source,source,MAXBUF);
3186         comm.handler_function = f;
3187         comm.flags_needed = flags;
3188         comm.min_params = minparams;
3189         comm.use_count = 0;
3190         comm.total_bytes = 0;
3191         cmdlist.push_back(comm);
3192         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3193 }
3194
3195 bool removecommands(const char* source)
3196 {
3197         bool go_again = true;
3198         while (go_again)
3199         {
3200                 go_again = false;
3201                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3202                 {
3203                         if (!strcmp(i->source,source))
3204                         {
3205                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3206                                 cmdlist.erase(i);
3207                                 go_again = true;
3208                                 break;
3209                         }
3210                 }
3211         }
3212         return true;
3213 }
3214
3215 void SetupCommandTable(void)
3216 {
3217         createcommand("USER",handle_user,0,4,"<core>");
3218         createcommand("NICK",handle_nick,0,1,"<core>");
3219         createcommand("QUIT",handle_quit,0,0,"<core>");
3220         createcommand("VERSION",handle_version,0,0,"<core>");
3221         createcommand("PING",handle_ping,0,1,"<core>");
3222         createcommand("PONG",handle_pong,0,1,"<core>");
3223         createcommand("ADMIN",handle_admin,0,0,"<core>");
3224         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3225         createcommand("INFO",handle_info,0,0,"<core>");
3226         createcommand("TIME",handle_time,0,0,"<core>");
3227         createcommand("WHOIS",handle_whois,0,1,"<core>");
3228         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3229         createcommand("NOTICE",handle_notice,0,2,"<core>");
3230         createcommand("JOIN",handle_join,0,1,"<core>");
3231         createcommand("NAMES",handle_names,0,0,"<core>");
3232         createcommand("PART",handle_part,0,1,"<core>");
3233         createcommand("KICK",handle_kick,0,2,"<core>");
3234         createcommand("MODE",handle_mode,0,1,"<core>");
3235         createcommand("TOPIC",handle_topic,0,1,"<core>");
3236         createcommand("WHO",handle_who,0,1,"<core>");
3237         createcommand("MOTD",handle_motd,0,0,"<core>");
3238         createcommand("RULES",handle_rules,0,0,"<core>");
3239         createcommand("OPER",handle_oper,0,2,"<core>");
3240         createcommand("LIST",handle_list,0,0,"<core>");
3241         createcommand("DIE",handle_die,'o',1,"<core>");
3242         createcommand("RESTART",handle_restart,'o',1,"<core>");
3243         createcommand("KILL",handle_kill,'o',2,"<core>");
3244         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3245         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3246         createcommand("STATS",handle_stats,0,1,"<core>");
3247         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3248         createcommand("AWAY",handle_away,0,0,"<core>");
3249         createcommand("ISON",handle_ison,0,0,"<core>");
3250         createcommand("SUMMON",handle_summon,0,0,"<core>");
3251         createcommand("USERS",handle_users,0,0,"<core>");
3252         createcommand("INVITE",handle_invite,0,2,"<core>");
3253         createcommand("PASS",handle_pass,0,1,"<core>");
3254         createcommand("TRACE",handle_trace,'o',0,"<core>");
3255         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3256         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3257         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3258         createcommand("MODULES",handle_modules,0,0,"<core>");
3259         createcommand("LINKS",handle_links,0,0,"<core>");
3260         createcommand("MAP",handle_map,0,0,"<core>");
3261         createcommand("KLINE",handle_kline,'o',1,"<core>");
3262         createcommand("GLINE",handle_gline,'o',1,"<core>");
3263         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3264         createcommand("QLINE",handle_qline,'o',1,"<core>");
3265         createcommand("ELINE",handle_eline,'o',1,"<core>");
3266         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3267         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3268         createcommand("SERVER",handle_server,0,0,"<core>");
3269 }
3270
3271 void process_buffer(const char* cmdbuf,userrec *user)
3272 {
3273         if (!user)
3274         {
3275                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3276                 return;
3277         }
3278         char cmd[MAXBUF];
3279         if (!cmdbuf)
3280         {
3281                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3282                 return;
3283         }
3284         if (!strcmp(cmdbuf,""))
3285         {
3286                 return;
3287         }
3288         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3289
3290         strlcpy(cmd,cmdbuf,MAXBUF);
3291         if (!strcmp(cmd,""))
3292         {
3293                 return;
3294         }
3295         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3296         {
3297                 cmd[strlen(cmd)-1] = '\0';
3298         }
3299         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3300         {
3301                 cmd[strlen(cmd)-1] = '\0';
3302         }
3303
3304         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3305         {
3306                 cmd[strlen(cmd)-1] = '\0';
3307         }
3308
3309         if (!strcmp(cmd,""))
3310         {
3311                 return;
3312         }
3313         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3314         tidystring(cmd);
3315         if ((user) && (cmd))
3316         {
3317                 process_command(user,cmd);
3318         }
3319 }
3320
3321 void DoSync(serverrec* serv, char* tcp_host)
3322 {
3323         char data[MAXBUF];
3324         log(DEBUG,"Sending sync");
3325         // send start of sync marker: Y <timestamp>
3326         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3327         // except the ones its receiving it from.
3328         snprintf(data,MAXBUF,"Y %d",TIME);
3329         serv->SendPacket(data,tcp_host);
3330         // send users and channels
3331         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3332         {
3333                 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);
3334                 serv->SendPacket(data,tcp_host);
3335                 if (strchr(u->second->modes,'o'))
3336                 {
3337                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3338                         serv->SendPacket(data,tcp_host);
3339                 }
3340                 for (int i = 0; i <= MODCOUNT; i++)
3341                 {
3342                         string_list l = modules[i]->OnUserSync(u->second);
3343                         for (int j = 0; j < l.size(); j++)
3344                         {
3345                                 strlcpy(data,l[j].c_str(),MAXBUF);
3346                                 serv->SendPacket(data,tcp_host);
3347                         }
3348                 }
3349                 if (strcmp(chlist(u->second),""))
3350                 {
3351                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3352                         serv->SendPacket(data,tcp_host);
3353                 }
3354         }
3355         // send channel modes, topics etc...
3356         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3357         {
3358                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3359                 serv->SendPacket(data,tcp_host);
3360                 for (int i = 0; i <= MODCOUNT; i++)
3361                 {
3362                         string_list l = modules[i]->OnChannelSync(c->second);
3363                         for (int j = 0; j < l.size(); j++)
3364                         {
3365                                 strlcpy(data,l[j].c_str(),MAXBUF);
3366                                 serv->SendPacket(data,tcp_host);
3367                         }
3368                 }
3369                 if (strcmp(c->second->topic,""))
3370                 {
3371                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3372                         serv->SendPacket(data,tcp_host);
3373                 }
3374                 // send current banlist
3375
3376                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3377                 {
3378                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3379                         serv->SendPacket(data,tcp_host);
3380                 }
3381         }
3382         // sync global zlines, glines, etc
3383         sync_xlines(serv,tcp_host);
3384
3385         for (int j = 0; j < 32; j++)
3386         {
3387                 if (me[j] != NULL)
3388                 {
3389                         for (int k = 0; k < me[j]->connectors.size(); k++)
3390                         {
3391                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3392                                 {
3393                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3394                                         serv->SendPacket(data,tcp_host);
3395                                         NetSendMyRoutingTable();
3396                                 }
3397                         }
3398                 }
3399         }
3400
3401         snprintf(data,MAXBUF,"F %d",TIME);
3402         serv->SendPacket(data,tcp_host);
3403         log(DEBUG,"Sent sync");
3404         // ircd sends its serverlist after the end of sync here
3405 }
3406
3407
3408 void NetSendMyRoutingTable()
3409 {
3410         // send out a line saying what is reachable to us.
3411         // E.g. if A is linked to B C and D, send out:
3412         // $ A B C D
3413         // if its only linked to B and D send out:
3414         // $ A B D
3415         // if it has no links, dont even send out the line at all.
3416         char buffer[MAXBUF];
3417         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3418         bool sendit = false;
3419         for (int i = 0; i < 32; i++)
3420         {
3421                 if (me[i] != NULL)
3422                 {
3423                         for (int j = 0; j < me[i]->connectors.size(); j++)
3424                         {
3425                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3426                                 {
3427                                         strlcat(buffer," ",MAXBUF);
3428                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3429                                         sendit = true;
3430                                 }
3431                         }
3432                 }
3433         }
3434         if (sendit)
3435                 NetSendToAll(buffer);
3436 }
3437
3438
3439 void DoSplit(const char* params)
3440 {
3441         bool go_again = true;
3442         while (go_again)
3443         {
3444                 go_again = false;
3445                 for (int i = 0; i < 32; i++)
3446                 {
3447                         if (me[i] != NULL)
3448                         {
3449                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3450                                 {
3451                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3452                                         {
3453                                                 j->routes.clear();
3454                                                 j->CloseConnection();
3455                                                 me[i]->connectors.erase(j);
3456                                                 go_again = true;
3457                                                 break;
3458                                         }
3459                                 }
3460                         }
3461                 }
3462         }
3463         log(DEBUG,"Removed server. Will remove clients...");
3464         // iterate through the userlist and remove all users on this server.
3465         // because we're dealing with a mesh, we dont have to deal with anything
3466         // "down-route" from this server (nice huh)
3467         go_again = true;
3468         char reason[MAXBUF];
3469         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3470         while (go_again)
3471         {
3472                 go_again = false;
3473                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3474                 {
3475                         if (!strcasecmp(u->second->server,params))
3476                         {
3477                                 kill_link(u->second,reason);
3478                                 go_again = true;
3479                                 break;
3480                         }
3481                 }
3482         }
3483 }
3484
3485 // removes a server. Will NOT remove its users!
3486
3487 void RemoveServer(const char* name)
3488 {
3489         bool go_again = true;
3490         while (go_again)
3491         {
3492                 go_again = false;
3493                 for (int i = 0; i < 32; i++)
3494                 {
3495                         if (me[i] != NULL)
3496                         {
3497                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3498                                 {
3499                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3500                                         {
3501                                                 j->routes.clear();
3502                                                 j->CloseConnection();
3503                                                 me[i]->connectors.erase(j);
3504                                                 go_again = true;
3505                                                 break;
3506                                         }
3507                                 }
3508                         }
3509                 }
3510         }
3511 }
3512
3513
3514 char MODERR[MAXBUF];
3515
3516 char* ModuleError()
3517 {
3518         return MODERR;
3519 }
3520
3521 void erase_factory(int j)
3522 {
3523         int v = 0;
3524         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3525         {
3526                 if (v == j)
3527                 {
3528                         factory.erase(t);
3529                         factory.push_back(NULL);
3530                         return;
3531                 }
3532                 v++;
3533         }
3534 }
3535
3536 void erase_module(int j)
3537 {
3538         int v1 = 0;
3539         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3540         {
3541                 if (v1 == j)
3542                 {
3543                         delete *m;
3544                         modules.erase(m);
3545                         modules.push_back(NULL);
3546                         break;
3547                 }
3548                 v1++;
3549         }
3550         int v2 = 0;
3551         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3552         {
3553                 if (v2 == j)
3554                 {
3555                        module_names.erase(v);
3556                        break;
3557                 }
3558                 v2++;
3559         }
3560
3561 }
3562
3563 bool UnloadModule(const char* filename)
3564 {
3565         for (int j = 0; j != module_names.size(); j++)
3566         {
3567                 if (module_names[j] == std::string(filename))
3568                 {
3569                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3570                         {
3571                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3572                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3573                                 return false;
3574                         }
3575                         // found the module
3576                         log(DEBUG,"Deleting module...");
3577                         erase_module(j);
3578                         log(DEBUG,"Erasing module entry...");
3579                         erase_factory(j);
3580                         log(DEBUG,"Removing dependent commands...");
3581                         removecommands(filename);
3582                         log(DEFAULT,"Module %s unloaded",filename);
3583                         MODCOUNT--;
3584                         return true;
3585                 }
3586         }
3587         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3588         snprintf(MODERR,MAXBUF,"Module not loaded");
3589         return false;
3590 }
3591
3592 bool DirValid(char* dirandfile)
3593 {
3594         char work[MAXBUF];
3595         strlcpy(work,dirandfile,MAXBUF);
3596         int p = strlen(work);
3597         // we just want the dir
3598         while (strlen(work))
3599         {
3600                 if (work[p] == '/')
3601                 {
3602                         work[p] = '\0';
3603                         break;
3604                 }
3605                 work[p--] = '\0';
3606         }
3607         log(DEBUG,"Dir valid: %s",work);
3608         char buffer[MAXBUF], otherdir[MAXBUF];
3609         // Get the current working directory
3610         if( getcwd( buffer, MAXBUF ) == NULL )
3611                 return false;
3612         chdir(work);
3613         if( getcwd( otherdir, MAXBUF ) == NULL )
3614                 return false;
3615         chdir(buffer);
3616         log(DEBUG,"Dir is really: %s",otherdir);
3617         if (strlen(otherdir) >= strlen(work))
3618         {
3619                 otherdir[strlen(work)] = '\0';
3620                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3621                 if (!strcmp(otherdir,work))
3622                 {
3623                         log(DEBUG,"Match ok");
3624                         return true;
3625                 }
3626                 log(DEBUG,"No match");
3627                 return false;
3628         }
3629         else return false;
3630 }
3631
3632 bool LoadModule(const char* filename)
3633 {
3634         char modfile[MAXBUF];
3635         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3636         if (!DirValid(modfile))
3637         {
3638                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3639                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3640                 return false;
3641         }
3642         log(DEBUG,"Loading module: %s",modfile);
3643         if (FileExists(modfile))
3644         {
3645                 for (int j = 0; j < module_names.size(); j++)
3646                 {
3647                         if (module_names[j] == std::string(filename))
3648                         {
3649                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3650                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3651                                 return false;
3652                         }
3653                 }
3654                 ircd_module* a = new ircd_module(modfile);
3655                 factory[MODCOUNT+1] = a;
3656                 if (factory[MODCOUNT+1]->LastError())
3657                 {
3658                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3659                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3660                         MODCOUNT--;
3661                         return false;
3662                 }
3663                 if (factory[MODCOUNT+1]->factory)
3664                 {
3665                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3666                         modules[MODCOUNT+1] = m;
3667                         /* save the module and the module's classfactory, if
3668                          * this isnt done, random crashes can occur :/ */
3669                         module_names.push_back(filename);
3670                 }
3671                 else
3672                 {
3673                         log(DEFAULT,"Unable to load %s",modfile);
3674                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3675                         return false;
3676                 }
3677         }
3678         else
3679         {
3680                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3681                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3682                 return false;
3683         }
3684         MODCOUNT++;
3685         return true;
3686 }
3687
3688 int InspIRCd(void)
3689 {
3690         struct sockaddr_in client,server;
3691         char addrs[MAXBUF][255];
3692         int incomingSockfd, result = TRUE;
3693         socklen_t length;
3694         int count = 0;
3695         int selectResult = 0, selectResult2 = 0;
3696         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3697         fd_set selectFds;
3698         timeval tv;
3699
3700         log_file = fopen("ircd.log","a+");
3701         if (!log_file)
3702         {
3703                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3704                 Exit(ERROR);
3705         }
3706
3707         log(DEBUG,"InspIRCd: startup: begin");
3708         log(DEBUG,"$Id$");
3709         if (geteuid() == 0)
3710         {
3711                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3712                 Exit(ERROR);
3713                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3714         }
3715         SetupCommandTable();
3716         log(DEBUG,"InspIRCd: startup: default command table set up");
3717
3718         ReadConfig(true,NULL);
3719         if (strcmp(DieValue,""))
3720         {
3721                 printf("WARNING: %s\n\n",DieValue);
3722                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3723                 exit(0);
3724         }
3725         log(DEBUG,"InspIRCd: startup: read config");
3726
3727         int clientportcount = 0, serverportcount = 0;
3728
3729         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3730         {
3731                 ConfValue("bind","port",count,configToken,&config_f);
3732                 ConfValue("bind","address",count,Addr,&config_f);
3733                 ConfValue("bind","type",count,Type,&config_f);
3734                 if (!strcmp(Type,"servers"))
3735                 {
3736                         char Default[MAXBUF];
3737                         strcpy(Default,"no");
3738                         ConfValue("bind","default",count,Default,&config_f);
3739                         if (strchr(Default,'y'))
3740                         {
3741                                 defaultRoute = serverportcount;
3742                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3743                         }
3744                         me[serverportcount] = new serverrec(ServerName,100L,false);
3745                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
3746                         {
3747                                 log(DEFAULT,"Warning: Failed to bind port %d",atoi(configToken));
3748                                 printf("Warning: Failed to bind port %d\n",atoi(configToken));
3749                         }
3750                         else
3751                         {
3752                                 serverportcount++;
3753                         }
3754                 }
3755                 else
3756                 {
3757                         ports[clientportcount] = atoi(configToken);
3758                         strlcpy(addrs[clientportcount],Addr,256);
3759                         clientportcount++;
3760                 }
3761                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3762         }
3763         portCount = clientportcount;
3764         UDPportCount = serverportcount;
3765
3766         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3767         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3768
3769         printf("\n");
3770
3771         /* BugFix By Craig! :p */
3772         MODCOUNT = -1;
3773         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
3774         {
3775                 ConfValue("module","name",count,configToken,&config_f);
3776                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3777                 if (!LoadModule(configToken))
3778                 {
3779                         log(DEBUG,"Exiting due to a module loader error.");
3780                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3781                         Exit(0);
3782                 }
3783         }
3784         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3785
3786         startup_time = time(NULL);
3787
3788         char PID[MAXBUF];
3789         ConfValue("pid","file",0,PID,&config_f);
3790         // write once here, to try it out and make sure its ok
3791         WritePID(PID);
3792
3793         /* setup select call */
3794         FD_ZERO(&selectFds);
3795         log(DEBUG,"InspIRCd: startup: zero selects");
3796         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3797
3798         for (count = 0; count < portCount; count++)
3799         {
3800                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3801                 {
3802                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3803                         return(ERROR);
3804                 }
3805                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3806                 {
3807                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3808                 }
3809                 else    /* well we at least bound to one socket so we'll continue */
3810                 {
3811                         boundPortCount++;
3812                 }
3813         }
3814
3815         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3816
3817         /* if we didn't bind to anything then abort */
3818         if (boundPortCount == 0)
3819         {
3820                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3821                 printf("\nERROR: Was not able to bind any of %d ports! Please check your configuration.\n\n", portCount);
3822                 return (ERROR);
3823         }
3824
3825
3826         printf("\nInspIRCd is now running!\n");
3827
3828         if (nofork)
3829         {
3830                 log(VERBOSE,"Not forking as -nofork was specified");
3831         }
3832         else
3833         {
3834                 if (DaemonSeed() == ERROR)
3835                 {
3836                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3837                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3838                         Exit(ERROR);
3839                 }
3840         }
3841
3842         WritePID(PID);
3843
3844         length = sizeof (client);
3845         char udp_msg[MAXBUF],tcp_host[MAXBUF];
3846
3847         fd_set serverfds;
3848         timeval tvs;
3849         tvs.tv_usec = 7000L;
3850         tvs.tv_sec = 0;
3851         tv.tv_sec = 0;
3852         tv.tv_usec = 7000L;
3853         char data[10240];
3854         timeval tval;
3855         fd_set sfd;
3856         tval.tv_usec = 7000L;
3857         tval.tv_sec = 0;
3858         int total_in_this_set = 0;
3859         int v = 0;
3860         bool expire_run = false;
3861
3862         /* main loop, this never returns */
3863         for (;;)
3864         {
3865 #ifdef _POSIX_PRIORITY_SCHEDULING
3866                 sched_yield();
3867 #endif
3868                 // poll dns queue
3869                 dns_poll();
3870                 FD_ZERO(&sfd);
3871
3872                 // we only read time() once per iteration rather than tons of times!
3873                 TIME = time(NULL);
3874
3875                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3876                 // them in a list, then reap the list every second or so.
3877                 if (((TIME % 5) == 0) && (!expire_run))
3878                 {
3879                         expire_lines();
3880                         FOREACH_MOD OnBackgroundTimer(TIME);
3881                         expire_run = true;
3882                         continue;
3883                 }
3884                 if ((TIME % 5) == 1)
3885                         expire_run = false;
3886
3887                 // fix by brain - this must be below any manipulation of the hashmap by modules
3888                 user_hash::iterator count2 = clientlist.begin();
3889
3890                 FD_ZERO(&serverfds);
3891
3892                 for (int x = 0; x != UDPportCount; x++)
3893                 {
3894                         if (me[x])
3895                                 FD_SET(me[x]->fd, &serverfds);
3896                 }
3897
3898                 // serverFds timevals went here
3899
3900                 tvs.tv_usec = 7000L;
3901                 tvs.tv_sec = 0;
3902                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3903                 if (servresult > 0)
3904                 {
3905                         for (int x = 0; x != UDPportCount; x++)
3906                         {
3907                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3908                                 {
3909                                         char remotehost[MAXBUF],resolved[MAXBUF];
3910                                         length = sizeof (client);
3911                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3912                                         if (incomingSockfd != -1)
3913                                         {
3914                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3915                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3916                                                 {
3917                                                         strlcpy(resolved,remotehost,MAXBUF);
3918                                                 }
3919                                                 // add to this connections ircd_connector vector
3920                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3921                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3922                                         }
3923                                 }
3924                         }
3925                 }
3926
3927                 for (int cycle = 0; cycle < 4; cycle++) for (int x = 0; x < UDPportCount; x++)
3928                 {
3929                         std::deque<std::string> msgs;
3930                         msgs.clear();
3931                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3932                         {
3933                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3934                                 {
3935                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3936                                         log(DEBUG,"Processing: %s",udp_msg);
3937                                         if (strlen(udp_msg)<1)
3938                                         {
3939                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3940                                                 break;
3941                                         }
3942                                         // during a netburst, send all data to all other linked servers
3943                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3944                                         {
3945                                                 if (is_uline(tcp_host))
3946                                                 {
3947                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3948                                                         {
3949                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3950                                                         }
3951                                                 }
3952                                                 else
3953                                                         NetSendToAllExcept(tcp_host,udp_msg);
3954                                         }
3955                                         std::string msg = udp_msg;
3956                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
3957                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
3958                                         handle_link_packet(udp_msg, tcp_host, me[x]);
3959                                 }
3960                                 goto label;
3961                         }
3962                 }
3963
3964
3965         while (count2 != clientlist.end())
3966         {
3967                 FD_ZERO(&sfd);
3968                 total_in_this_set = 0;
3969
3970                 user_hash::iterator xcount = count2;
3971                 user_hash::iterator endingiter = count2;
3972
3973                 if (count2 == clientlist.end()) break;
3974
3975                 if (count2->second)
3976                 if (count2->second->fd != 0)
3977                 {
3978                         // assemble up to 64 sockets into an fd_set
3979                         // to implement a pooling mechanism.
3980                         //
3981                         // This should be up to 64x faster than the
3982                         // old implementation.
3983                         while (total_in_this_set < 64)
3984                         {
3985                                 if (count2 != clientlist.end())
3986                                 {
3987                                         // we don't check the state of remote users.
3988                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
3989                                         {
3990                                                 FD_SET (count2->second->fd, &sfd);
3991
3992                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
3993                                                 // their connection class.
3994                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
3995                                                 {
3996                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
3997                                                         kill_link(count2->second,"Registration timeout");
3998                                                         goto label;
3999                                                 }
4000                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
4001                                                 {
4002                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4003                                                         count2->second->dns_done = true;
4004                                                         FullConnectUser(count2->second);
4005                                                         goto label;
4006                                                 }
4007                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
4008                                                 {
4009                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4010                                                         FullConnectUser(count2->second);
4011                                                         goto label;
4012                                                 }
4013                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
4014                                                 {
4015                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
4016                                                         {
4017                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
4018                                                                 kill_link(count2->second,"Ping timeout");
4019                                                                 goto label;
4020                                                         }
4021                                                         Write(count2->second->fd,"PING :%s",ServerName);
4022                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
4023                                                         count2->second->lastping = 0;
4024                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
4025                                                 }
4026                                         }
4027                                         count2++;
4028                                         total_in_this_set++;
4029                                 }
4030                                 else break;
4031                         }
4032
4033                         endingiter = count2;
4034                         count2 = xcount; // roll back to where we were
4035
4036                         v = 0;
4037
4038                         // tvals defined here
4039
4040                         tval.tv_usec = 7000L;
4041                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4042
4043                         // now loop through all of the items in this pool if any are waiting
4044                         //if (selectResult2 > 0)
4045                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4046                         {
4047
4048 #ifdef _POSIX_PRIORITY_SCHEDULING
4049                                 sched_yield();
4050 #endif
4051
4052                                 result = EAGAIN;
4053                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
4054                                 {
4055                                         memset(data, 0, 10240);
4056                                         result = read(count2a->second->fd, data, 10240);
4057
4058                                         if (result)
4059                                         {
4060                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4061                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4062                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4063                                                 for (int checker = 0; checker < result; checker++)
4064                                                 {
4065                                                         if ((data[checker] == 0) || (data[checker] == 7))
4066                                                                 data[checker] = ' ';
4067                                                 }
4068                                                 userrec* current = count2a->second;
4069                                                 int currfd = current->fd;
4070                                                 char* l = strtok(data,"\n");
4071                                                 int floodlines = 0;
4072                                                 while (l)
4073                                                 {
4074                                                         floodlines++;
4075                                                         if ((floodlines > current->flood) && (current->flood != 0))
4076                                                         {
4077                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4078                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4079                                                                 kill_link(current,"Excess flood");
4080                                                                 goto label;
4081                                                         }
4082                                                         char sanitized[NetBufferSize];
4083                                                         memset(sanitized, 0, NetBufferSize);
4084                                                         int ptt = 0;
4085                                                         for (int pt = 0; pt < strlen(l); pt++)
4086                                                         {
4087                                                                 if (l[pt] != '\r')
4088                                                                 {
4089                                                                         sanitized[ptt++] = l[pt];
4090                                                                 }
4091                                                         }
4092                                                         sanitized[ptt] = '\0';
4093                                                         if (strlen(sanitized))
4094                                                         {
4095
4096
4097                                                                 // we're gonna re-scan to check if the nick is gone, after every
4098                                                                 // command - if it has, we're gonna bail
4099                                                                 bool find_again = false;
4100                                                                 process_buffer(sanitized,current);
4101
4102                                                                 // look for the user's record in case it's changed
4103                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4104                                                                 {
4105                                                                         if (c2->second->fd == currfd)
4106                                                                         {
4107                                                                                 // found again, update pointer
4108                                                                                 current == c2->second;
4109                                                                                 find_again = true;
4110                                                                                 break;
4111                                                                         }
4112                                                                 }
4113                                                                 if (!find_again)
4114                                                                         goto label;
4115
4116                                                         }
4117                                                         l = strtok(NULL,"\n");
4118                                                 }
4119                                                 goto label;
4120                                         }
4121
4122                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4123                                         {
4124                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4125                                                 kill_link(count2a->second,strerror(errno));
4126                                                 goto label;
4127                                         }
4128                                 }
4129                                 // result EAGAIN means nothing read
4130                                 if (result == EAGAIN)
4131                                 {
4132                                 }
4133                                 else
4134                                 if (result == 0)
4135                                 {
4136                                         if (count2->second)
4137                                         {
4138                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4139                                                 kill_link(count2a->second,"Client exited");
4140                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4141                                                 log(DEBUG,"Bailing from client exit");
4142                                                 goto label;
4143                                         }
4144                                 }
4145                                 else if (result > 0)
4146                                 {
4147                                 }
4148                         }
4149                 }
4150                 for (int q = 0; q < total_in_this_set; q++)
4151                 {
4152                         // there is no iterator += operator :(
4153                         //if (count2 != clientlist.end())
4154                         //{
4155                                 count2++;
4156                         //}
4157                 }
4158         }
4159
4160         // set up select call
4161         for (count = 0; count < boundPortCount; count++)
4162         {
4163                 FD_SET (openSockfd[count], &selectFds);
4164         }
4165
4166         tv.tv_usec = 7000L;
4167         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4168
4169         /* select is reporting a waiting socket. Poll them all to find out which */
4170         if (selectResult > 0)
4171         {
4172                 char target[MAXBUF], resolved[MAXBUF];
4173                 for (count = 0; count < boundPortCount; count++)
4174                 {
4175                         if (FD_ISSET (openSockfd[count], &selectFds))
4176                         {
4177                                 length = sizeof (client);
4178                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4179
4180                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4181                                 strlcpy (resolved, target, MAXBUF);
4182
4183                                 if (incomingSockfd < 0)
4184                                 {
4185                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4186                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4187                                 }
4188                                 else
4189                                 {
4190                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4191                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4192                                 }
4193                                 goto label;
4194                         }
4195                 }
4196         }
4197         label:
4198         if (0) {};
4199 }
4200 /* not reached */
4201 close (incomingSockfd);
4202 }
4203