src/inspircd.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 /* Now with added unF! ;) */
  18
  19 using namespace std;
  20
  21 #include "inspircd.h"
  22 #include "inspircd_io.h"
  23 #include "inspircd_util.h"
  24 #include "inspircd_config.h"
  25 #include <unistd.h>
  26 #include <fcntl.h>
  27 #include <sys/errno.h>
  28 #include <sys/ioctl.h>
  29 #include <sys/utsname.h>
  30 #include <cstdio>
  31 #include <time.h>
  32 #include <string>
  33 #ifdef GCC3
  34 #include <ext/hash_map>
  35 #else
  36 #include <hash_map>
  37 #endif
  38 #include <map>
  39 #include <sstream>
  40 #include <vector>
  41 #include <errno.h>
  42 #include <deque>
  43 #include <errno.h>
  44 #include <unistd.h>
  45 #include <sched.h>
  46 #include "connection.h"
  47 #include "users.h"
  48 #include "servers.h"
  49 #include "ctables.h"
  50 #include "globals.h"
  51 #include "modules.h"
  52 #include "dynamic.h"
  53 #include "wildcard.h"
  54 #include "message.h"
  55 #include "mode.h"
  56 #include "commands.h"
  57 #include "xline.h"
  58 #include "inspstring.h"
  59 #include "dnsqueue.h"
  60
  61 #ifdef GCC3
  62 #define nspace __gnu_cxx
  63 #else
  64 #define nspace std
  65 #endif
  66
  67 int LogLevel = DEFAULT;
  68 char ServerName[MAXBUF];
  69 char Network[MAXBUF];
  70 char ServerDesc[MAXBUF];
  71 char AdminName[MAXBUF];
  72 char AdminEmail[MAXBUF];
  73 char AdminNick[MAXBUF];
  74 char diepass[MAXBUF];
  75 char restartpass[MAXBUF];
  76 char motd[MAXBUF];
  77 char rules[MAXBUF];
  78 char list[MAXBUF];
  79 char PrefixQuit[MAXBUF];
  80 char DieValue[MAXBUF];
  81 char DNSServer[MAXBUF];
  82 int debugging =  0;
  83 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  84 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  85 int DieDelay  =  5;
  86 time_t startup_time = time(NULL);
  87 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  88 extern int MaxWhoResults;
  89 time_t nb_start = 0;
  90 int dns_timeout = 5;
  91
  92 char DisabledCommands[MAXBUF];
  93
  94 bool AllowHalfop = true;
  95 bool AllowProtect = true;
  96 bool AllowFounder = true;
  97
  98 extern std::vector<Module*> modules;
  99 std::vector<std::string> module_names;
 100 extern std::vector<ircd_module*> factory;
 101
 102 extern int MODCOUNT;
 103 int openSockfd[MAXSOCKS];
 104 bool nofork = false;
 105 bool unlimitcore = false;
 106
 107 time_t TIME = time(NULL);
 108
 109 namespace nspace
 110 {
 111 #ifdef GCC34
 112         template<> struct hash<in_addr>
 113 #else
 114         template<> struct nspace::hash<in_addr>
 115 #endif
 116         {
 117                 size_t operator()(const struct in_addr &a) const
 118                 {
 119                         size_t q;
 120                         memcpy(&q,&a,sizeof(size_t));
 121                         return q;
 122                 }
 123         };
 124 #ifdef GCC34
 125         template<> struct hash<string>
 126 #else
 127         template<> struct nspace::hash<string>
 128 #endif
 129         {
 130                 size_t operator()(const string &s) const
 131                 {
 132                         char a[MAXBUF];
 133                         static struct hash<const char *> strhash;
 134                         strlcpy(a,s.c_str(),MAXBUF);
 135                         strlower(a);
 136                         return strhash(a);
 137                 }
 138         };
 139 }
 140
 141
 142 struct StrHashComp
 143 {
 144
 145         bool operator()(const string& s1, const string& s2) const
 146         {
 147                 char a[MAXBUF],b[MAXBUF];
 148                 strlcpy(a,s1.c_str(),MAXBUF);
 149                 strlcpy(b,s2.c_str(),MAXBUF);
 150                 strlower(a);
 151                 strlower(b);
 152                 return (strcasecmp(a,b) == 0);
 153         }
 154
 155 };
 156
 157 struct InAddr_HashComp
 158 {
 159
 160         bool operator()(const in_addr &s1, const in_addr &s2) const
 161         {
 162                 size_t q;
 163                 size_t p;
 164
 165                 memcpy(&q,&s1,sizeof(size_t));
 166                 memcpy(&p,&s2,sizeof(size_t));
 167
 168                 return (q == p);
 169         }
 170
 171 };
 172
 173
 174 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 175 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 176 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 177 typedef std::deque<command_t> command_table;
 178
 179 serverrec* me[32];
 180
 181 FILE *log_file;
 182
 183 user_hash clientlist;
 184 chan_hash chanlist;
 185 user_hash whowas;
 186 command_table cmdlist;
 187 file_cache MOTD;
 188 file_cache RULES;
 189 address_cache IP;
 190
 191 ClassVector Classes;
 192
 193 struct linger linger = { 0 };
 194 char MyExecutable[1024];
 195 int boundPortCount = 0;
 196 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 197 int defaultRoute = 0;
 198 char ModPath[MAXBUF];
 199
 200 connection C;
 201
 202 long MyKey = C.GenKey();
 203
 204 /* prototypes */
 205
 206 int has_channel(userrec *u, chanrec *c);
 207 int usercount(chanrec *c);
 208 int usercount_i(chanrec *c);
 209 char* Passwd(userrec *user);
 210 bool IsDenied(userrec *user);
 211 void AddWhoWas(userrec* u);
 212
 213 std::vector<long> auth_cookies;
 214 std::stringstream config_f(stringstream::in | stringstream::out);
 215
 216
 217
 218 long GetRevision()
 219 {
 220         char Revision[] = "$Revision$";
 221         char *s1 = Revision;
 222         char *savept;
 223         char *v2 = strtok_r(s1," ",&savept);
 224         s1 = savept;
 225         v2 = strtok_r(s1," ",&savept);
 226         s1 = savept;
 227         return (long)(atof(v2)*10000);
 228 }
 229
 230
 231 std::string getservername()
 232 {
 233         return ServerName;
 234 }
 235
 236 std::string getserverdesc()
 237 {
 238         return ServerDesc;
 239 }
 240
 241 std::string getnetworkname()
 242 {
 243         return Network;
 244 }
 245
 246 std::string getadminname()
 247 {
 248         return AdminName;
 249 }
 250
 251 std::string getadminemail()
 252 {
 253         return AdminEmail;
 254 }
 255
 256 std::string getadminnick()
 257 {
 258         return AdminNick;
 259 }
 260
 261 void log(int level,char *text, ...)
 262 {
 263         char textbuffer[MAXBUF];
 264         va_list argsPtr;
 265         time_t rawtime;
 266         struct tm * timeinfo;
 267         if (level < LogLevel)
 268                 return;
 269
 270         time(&rawtime);
 271         timeinfo = localtime (&rawtime);
 272
 273         if (log_file)
 274         {
 275                 char b[MAXBUF];
 276                 va_start (argsPtr, text);
 277                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 278                 va_end(argsPtr);
 279                 strlcpy(b,asctime(timeinfo),MAXBUF);
 280                 b[strlen(b)-1] = ':';
 281                 fprintf(log_file,"%s %s\n",b,textbuffer);
 282                 if (nofork)
 283                 {
 284                         // nofork enabled? display it on terminal too
 285                         printf("%s %s\n",b,textbuffer);
 286                 }
 287         }
 288 }
 289
 290 void readfile(file_cache &F, const char* fname)
 291 {
 292         FILE* file;
 293         char linebuf[MAXBUF];
 294
 295         log(DEBUG,"readfile: loading %s",fname);
 296         F.clear();
 297         file =  fopen(fname,"r");
 298         if (file)
 299         {
 300                 while (!feof(file))
 301                 {
 302                         fgets(linebuf,sizeof(linebuf),file);
 303                         linebuf[strlen(linebuf)-1]='\0';
 304                         if (!strcmp(linebuf,""))
 305                         {
 306                                 strcpy(linebuf,"  ");
 307                         }
 308                         if (!feof(file))
 309                         {
 310                                 F.push_back(linebuf);
 311                         }
 312                 }
 313                 fclose(file);
 314         }
 315         else
 316         {
 317                 log(DEBUG,"readfile: failed to load file: %s",fname);
 318         }
 319         log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 320 }
 321
 322 void ReadConfig(bool bail, userrec* user)
 323 {
 324         char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF],MW[MAXBUF];
 325         char AH[MAXBUF],AP[MAXBUF],AF[MAXBUF],DNT[MAXBUF],pfreq[MAXBUF];
 326         ConnectClass c;
 327         std::stringstream errstr;
 328
 329         if (!LoadConf(CONFIG_FILE,&config_f,&errstr))
 330         {
 331                 errstr.seekg(0);
 332                 if (bail)
 333                 {
 334                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 335                         Exit(0);
 336                 }
 337                 else
 338                 {
 339                         char dataline[1024];
 340                         if (user)
 341                         {
 342                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 343                                 while (!errstr.eof())
 344                                 {
 345                                         errstr.getline(dataline,1024);
 346                                         WriteServ(user->fd,"NOTICE %s :%s",user->nick,dataline);
 347                                 }
 348                         }
 349                         else
 350                         {
 351                                 WriteOpers("There were errors in the configuration file:",user->nick);
 352                                 while (!errstr.eof())
 353                                 {
 354                                         errstr.getline(dataline,1024);
 355                                         WriteOpers(dataline);
 356                                 }
 357                         }
 358                         return;
 359                 }
 360         }
 361
 362         ConfValue("server","name",0,ServerName,&config_f);
 363         ConfValue("server","description",0,ServerDesc,&config_f);
 364         ConfValue("server","network",0,Network,&config_f);
 365         ConfValue("admin","name",0,AdminName,&config_f);
 366         ConfValue("admin","email",0,AdminEmail,&config_f);
 367         ConfValue("admin","nick",0,AdminNick,&config_f);
 368         ConfValue("files","motd",0,motd,&config_f);
 369         ConfValue("files","rules",0,rules,&config_f);
 370         ConfValue("power","diepass",0,diepass,&config_f);
 371         ConfValue("power","pause",0,pauseval,&config_f);
 372         ConfValue("power","restartpass",0,restartpass,&config_f);
 373         ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 374         ConfValue("die","value",0,DieValue,&config_f);
 375         ConfValue("options","loglevel",0,dbg,&config_f);
 376         ConfValue("options","netbuffersize",0,NB,&config_f);
 377         ConfValue("options","maxwho",0,MW,&config_f);
 378         ConfValue("options","allowhalfop",0,AH,&config_f);
 379         ConfValue("options","allowprotect",0,AP,&config_f);
 380         ConfValue("options","allowfounder",0,AF,&config_f);
 381         ConfValue("dns","server",0,DNSServer,&config_f);
 382         ConfValue("dns","timeout",0,DNT,&config_f);
 383         ConfValue("options","moduledir",0,ModPath,&config_f);
 384         ConfValue("disabled","commands",0,DisabledCommands,&config_f);
 385
 386         NetBufferSize = atoi(NB);
 387         MaxWhoResults = atoi(MW);
 388         dns_timeout = atoi(DNT);
 389         if (!dns_timeout)
 390                 dns_timeout = 5;
 391         if (!strcmp(DNSServer,""))
 392                 strlcpy(DNSServer,"127.0.0.1",MAXBUF);
 393         if (!strcmp(ModPath,""))
 394                 strlcpy(ModPath,MOD_PATH,MAXBUF);
 395         AllowHalfop = ((!strcasecmp(AH,"true")) || (!strcasecmp(AH,"1")) || (!strcasecmp(AH,"yes")));
 396         AllowProtect = ((!strcasecmp(AP,"true")) || (!strcasecmp(AP,"1")) || (!strcasecmp(AP,"yes")));
 397         AllowFounder = ((!strcasecmp(AF,"true")) || (!strcasecmp(AF,"1")) || (!strcasecmp(AF,"yes")));
 398         if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 399         {
 400                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 401                 NetBufferSize = 10240;
 402         }
 403         if ((!MaxWhoResults) || (MaxWhoResults > 65535) || (MaxWhoResults < 1))
 404         {
 405                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 406                 MaxWhoResults = 128;
 407         }
 408         if (!strcmp(dbg,"debug"))
 409                 LogLevel = DEBUG;
 410         if (!strcmp(dbg,"verbose"))
 411                 LogLevel = VERBOSE;
 412         if (!strcmp(dbg,"default"))
 413                 LogLevel = DEFAULT;
 414         if (!strcmp(dbg,"sparse"))
 415                 LogLevel = SPARSE;
 416         if (!strcmp(dbg,"none"))
 417                 LogLevel = NONE;
 418         readfile(MOTD,motd);
 419         log(DEFAULT,"Reading message of the day...");
 420         readfile(RULES,rules);
 421         log(DEFAULT,"Reading connect classes...");
 422         Classes.clear();
 423         for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 424         {
 425                 strcpy(Value,"");
 426                 ConfValue("connect","allow",i,Value,&config_f);
 427                 ConfValue("connect","timeout",i,timeout,&config_f);
 428                 ConfValue("connect","flood",i,flood,&config_f);
 429                 ConfValue("connect","pingfreq",i,pfreq,&config_f);
 430                 if (strcmp(Value,""))
 431                 {
 432                         strlcpy(c.host,Value,MAXBUF);
 433                         c.type = CC_ALLOW;
 434                         strlcpy(Value,"",MAXBUF);
 435                         ConfValue("connect","password",i,Value,&config_f);
 436                         strlcpy(c.pass,Value,MAXBUF);
 437                         c.registration_timeout = 90; // default is 2 minutes
 438                         c.pingtime = 120;
 439                         c.flood = atoi(flood);
 440                         if (atoi(timeout)>0)
 441                         {
 442                                 c.registration_timeout = atoi(timeout);
 443                         }
 444                         if (atoi(pfreq)>0)
 445                         {
 446                                 c.pingtime = atoi(pfreq);
 447                         }
 448                         Classes.push_back(c);
 449                         log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 450                 }
 451                 else
 452                 {
 453                         ConfValue("connect","deny",i,Value,&config_f);
 454                         strlcpy(c.host,Value,MAXBUF);
 455                         c.type = CC_DENY;
 456                         Classes.push_back(c);
 457                         log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 458                 }
 459
 460         }
 461         log(DEFAULT,"Reading K lines,Q lines and Z lines from config...");
 462         read_xline_defaults();
 463         log(DEFAULT,"Applying K lines, Q lines and Z lines...");
 464         apply_lines();
 465         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 466         if (!bail)
 467         {
 468                 log(DEFAULT,"Adding and removing modules due to rehash...");
 469
 470                 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
 471
 472                 // store the old module names
 473                 for (std::vector<std::string>::iterator t = module_names.begin(); t != module_names.end(); t++)
 474                 {
 475                         old_module_names.push_back(*t);
 476                 }
 477
 478                 // get the new module names
 479                 for (int count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
 480                 {
 481                         ConfValue("module","name",count2,Value,&config_f);
 482                         new_module_names.push_back(Value);
 483                 }
 484
 485                 // now create a list of new modules that are due to be loaded
 486                 // and a seperate list of modules which are due to be unloaded
 487                 for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 488                 {
 489                         bool added = true;
 490                         for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 491                         {
 492                                 if (*old == *_new)
 493                                         added = false;
 494                         }
 495                         if (added)
 496                                 added_modules.push_back(*_new);
 497                 }
 498                 for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 499                 {
 500                         bool removed = true;
 501                         for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 502                         {
 503                                 if (*newm == *oldm)
 504                                         removed = false;
 505                         }
 506                         if (removed)
 507                                 removed_modules.push_back(*oldm);
 508                 }
 509                 // now we have added_modules, a vector of modules to be loaded, and removed_modules, a vector of modules
 510                 // to be removed.
 511                 int rem = 0, add = 0;
 512                 if (!removed_modules.empty())
 513                 for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 514                 {
 515                         if (UnloadModule(removing->c_str()))
 516                         {
 517                                 WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 518                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 519                                 rem++;
 520                         }
 521                         else
 522                         {
 523                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ModuleError());
 524                         }
 525                 }
 526                 if (!added_modules.empty())
 527                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 528                 {
 529                         if (LoadModule(adding->c_str()))
 530                         {
 531                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 532                                 WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 533                                 add++;
 534                         }
 535                         else
 536                         {
 537                                 WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ModuleError());
 538                         }
 539                 }
 540                 log(DEFAULT,"Successfully unloaded %d of %d modules and loaded %d of %d modules.",rem,removed_modules.size(),add,added_modules.size());
 541         }
 542 }
 543
 544 /* write formatted text to a socket, in same format as printf */
 545
 546 void Write(int sock,char *text, ...)
 547 {
 548         if (sock == FD_MAGIC_NUMBER)
 549                 return;
 550         if (!text)
 551         {
 552                 log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 553                 return;
 554         }
 555         char textbuffer[MAXBUF];
 556         va_list argsPtr;
 557         char tb[MAXBUF];
 558
 559         va_start (argsPtr, text);
 560         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 561         va_end(argsPtr);
 562         snprintf(tb,MAXBUF,"%s\r\n",textbuffer);
 563         chop(tb);
 564         if (sock != -1)
 565         {
 566                 write(sock,tb,strlen(tb));
 567         }
 568 }
 569
 570 /* write a server formatted numeric response to a single socket */
 571
 572 void WriteServ(int sock, char* text, ...)
 573 {
 574         if (sock == FD_MAGIC_NUMBER)
 575                 return;
 576         if (!text)
 577         {
 578                 log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 579                 return;
 580         }
 581         char textbuffer[MAXBUF],tb[MAXBUF];
 582         va_list argsPtr;
 583         va_start (argsPtr, text);
 584
 585         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 586         va_end(argsPtr);
 587         snprintf(tb,MAXBUF,":%s %s\r\n",ServerName,textbuffer);
 588         chop(tb);
 589         if (sock != -1)
 590         {
 591                 write(sock,tb,strlen(tb));
 592         }
 593 }
 594
 595 /* write text from an originating user to originating user */
 596
 597 void WriteFrom(int sock, userrec *user,char* text, ...)
 598 {
 599         if (sock == FD_MAGIC_NUMBER)
 600                 return;
 601         if ((!text) || (!user))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF],tb[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609
 610         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 611         va_end(argsPtr);
 612         snprintf(tb,MAXBUF,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 613         chop(tb);
 614         if (sock != -1)
 615         {
 616                 write(sock,tb,strlen(tb));
 617         }
 618 }
 619
 620 /* write text to an destination user from a source user (e.g. user privmsg) */
 621
 622 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 623 {
 624         if ((!dest) || (!data))
 625         {
 626                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 627                 return;
 628         }
 629         if (dest->fd == FD_MAGIC_NUMBER)
 630                 return;
 631         char textbuffer[MAXBUF],tb[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, data);
 634         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 635         va_end(argsPtr);
 636         chop(tb);
 637
 638         // if no source given send it from the server.
 639         if (!source)
 640         {
 641                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 642         }
 643         else
 644         {
 645                 WriteFrom(dest->fd,source,"%s",textbuffer);
 646         }
 647 }
 648
 649 /* write formatted text from a source user to all users on a channel
 650  * including the sender (NOT for privmsg, notice etc!) */
 651
 652 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 653 {
 654         if ((!Ptr) || (!user) || (!text))
 655         {
 656                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 657                 return;
 658         }
 659         char textbuffer[MAXBUF];
 660         va_list argsPtr;
 661         va_start (argsPtr, text);
 662         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 663         va_end(argsPtr);
 664
 665         for (int i = 0; i < MAXCHANS; i++)
 666         {
 667                 if (user->chans[i].channel == Ptr)
 668                 {
 669                         std::vector<char*> *ulist = user->chans[i].channel->GetUsers();
 670                         for (int j = 0; j < ulist->size(); j++)
 671                         {
 672                                 char* o = (*ulist)[j];
 673                                 userrec* otheruser = (userrec*)o;
 674                                 if (otheruser->fd != FD_MAGIC_NUMBER)
 675                                         WriteTo(user,otheruser,"%s",textbuffer);
 676                         }
 677                 }
 678         }
 679
 680
 681         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 682         //{
 683         //      if (has_channel(i->second,Ptr))
 684         //      {
 685         //              if (i->second->fd != FD_MAGIC_NUMBER)
 686         //                      WriteTo(user,i->second,"%s",textbuffer);
 687         //      }
 688         //}
 689 }
 690
 691 /* write formatted text from a source user to all users on a channel
 692  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 693  * users on remote servers */
 694
 695 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 696 {
 697         if ((!Ptr) || (!text))
 698         {
 699                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 700                 return;
 701         }
 702         char textbuffer[MAXBUF];
 703         va_list argsPtr;
 704         va_start (argsPtr, text);
 705         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 706         va_end(argsPtr);
 707
 708         for (int i = 0; i < MAXCHANS; i++)
 709         {
 710                 if (user->chans[i].channel == Ptr)
 711                 {
 712                         std::vector<char*> *ulist = user->chans[i].channel->GetUsers();
 713                         for (int j = 0; j < ulist->size(); j++)
 714                         {
 715                                 char* o = (*ulist)[j];
 716                                 userrec* otheruser = (userrec*)o;
 717                                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (otheruser->fd != -1))
 718                                         WriteTo(user,otheruser,"%s",textbuffer);
 719                         }
 720                 }
 721         }
 722
 723
 724         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 725         //{
 726         //      if (has_channel(i->second,Ptr))
 727         //      {
 728         //              if ((i->second->fd != -1) && (i->second->fd != FD_MAGIC_NUMBER))
 729         //              {
 730         //                      if (!user)
 731         //                      {
 732         //                              WriteServ(i->second->fd,"%s",textbuffer);
 733         //                      }
 734         //                      else
 735         //                      {
 736         //                              WriteTo(user,i->second,"%s",textbuffer);
 737         //                      }
 738         //              }
 739         //      }
 740         //}
 741 }
 742
 743
 744 void WriteChannelWithServ(char* ServName, chanrec* Ptr, userrec* user, char* text, ...)
 745 {
 746         if ((!Ptr) || (!user) || (!text))
 747         {
 748                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 749                 return;
 750         }
 751         char textbuffer[MAXBUF];
 752         va_list argsPtr;
 753         va_start (argsPtr, text);
 754         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 755         va_end(argsPtr);
 756
 757
 758         for (int i = 0; i < MAXCHANS; i++)
 759         {
 760                 if (user->chans[i].channel == Ptr)
 761                 {
 762                         std::vector<char*> *ulist = user->chans[i].channel->GetUsers();
 763                         for (int j = 0; j < ulist->size(); j++)
 764                         {
 765                                 char* o = (*ulist)[j];
 766                                 userrec* otheruser = (userrec*)o;
 767                                 if (otheruser->fd != FD_MAGIC_NUMBER)
 768                                         WriteServ(otheruser->fd,"%s",textbuffer);
 769                         }
 770                 }
 771         }
 772
 773
 774
 775         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776         //{
 777         //      if (i->second)
 778         //      {
 779         //              if ((has_channel(i->second,Ptr)) && (i->second->fd != FD_MAGIC_NUMBER))
 780         //              {
 781         //                      WriteServ(i->second->fd,"%s",textbuffer);
 782         //              }
 783         //      }
 784         //}
 785 }
 786
 787
 788 /* write formatted text from a source user to all users on a channel except
 789  * for the sender (for privmsg etc) */
 790
 791 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 792 {
 793         if ((!Ptr) || (!user) || (!text))
 794         {
 795                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 796                 return;
 797         }
 798         char textbuffer[MAXBUF];
 799         va_list argsPtr;
 800         va_start (argsPtr, text);
 801         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 802         va_end(argsPtr);
 803
 804         for (int i = 0; i < MAXCHANS; i++)
 805         {
 806                 if (user->chans[i].channel == Ptr)
 807                 {
 808                         std::vector<char*> *ulist = user->chans[i].channel->GetUsers();
 809                         for (int j = 0; j < ulist->size(); j++)
 810                         {
 811                                 char* o = (*ulist)[j];
 812                                 userrec* otheruser = (userrec*)o;
 813                                 if ((otheruser->fd != FD_MAGIC_NUMBER) && (user != otheruser))
 814                                         WriteFrom(otheruser->fd,user,"%s",textbuffer);
 815                         }
 816                 }
 817         }
 818
 819         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 820         //{
 821         //      if (i->second)
 822         //      {
 823         //              if ((has_channel(i->second,Ptr)) && (user != i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 824         //              {
 825         //                      WriteTo(user,i->second,"%s",textbuffer);
 826         //              }
 827         //      }
 828         //}
 829 }
 830
 831
 832 std::string GetServerDescription(char* servername)
 833 {
 834         for (int j = 0; j < 32; j++)
 835         {
 836                 if (me[j] != NULL)
 837                 {
 838                         for (int k = 0; k < me[j]->connectors.size(); k++)
 839                         {
 840                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),servername))
 841                                 {
 842                                         return me[j]->connectors[k].GetDescription();
 843                                 }
 844                         }
 845                 }
 846                 return ServerDesc; // not a remote server that can be found, it must be me.
 847         }
 848 }
 849
 850
 851 /* write a formatted string to all users who share at least one common
 852  * channel, including the source user e.g. for use in NICK */
 853
 854 void WriteCommon(userrec *u, char* text, ...)
 855 {
 856         if (!u)
 857         {
 858                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 859                 return;
 860         }
 861
 862         if (u->registered != 7) {
 863                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 864                 return;
 865         }
 866
 867         char textbuffer[MAXBUF];
 868         va_list argsPtr;
 869         va_start (argsPtr, text);
 870         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 871         va_end(argsPtr);
 872
 873         WriteFrom(u->fd,u,"%s",textbuffer);
 874
 875         for (int i = 0; i < MAXCHANS; i++)
 876         {
 877                 if (u->chans[i].channel)
 878                 {
 879                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 880                         for (int j = 0; j < ulist->size(); j++)
 881                         {
 882                                 char* o = (*ulist)[j];
 883                                 userrec* otheruser = (userrec*)o;
 884                                 WriteFrom(otheruser->fd,u,"%s",textbuffer);
 885                         }
 886                 }
 887         }
 888
 889         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 890         //{
 891         //      if (i->second)
 892         //      {
 893         //              if ((common_channels(u,i->second) && (i->second != u)) && (i->second->fd != FD_MAGIC_NUMBER))
 894         //              {
 895         //                      WriteFrom(i->second->fd,u,"%s",textbuffer);
 896         //              }
 897         //      }
 898         //}
 899 }
 900
 901 /* write a formatted string to all users who share at least one common
 902  * channel, NOT including the source user e.g. for use in QUIT */
 903
 904 void WriteCommonExcept(userrec *u, char* text, ...)
 905 {
 906         if (!u)
 907         {
 908                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 909                 return;
 910         }
 911
 912         if (u->registered != 7) {
 913                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 914                 return;
 915         }
 916
 917         char textbuffer[MAXBUF];
 918         va_list argsPtr;
 919         va_start (argsPtr, text);
 920         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 921         va_end(argsPtr);
 922
 923         for (int i = 0; i < MAXCHANS; i++)
 924         {
 925                 if (u->chans[i].channel)
 926                 {
 927                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
 928                         for (int j = 0; j < ulist->size(); j++)
 929                         {
 930                                 char* o = (*ulist)[j];
 931                                 userrec* otheruser = (userrec*)o;
 932                                 if (u != otheruser)
 933                                         WriteFrom(otheruser->fd,u,"%s",textbuffer);
 934                         }
 935                 }
 936         }
 937
 938         //for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 939         //{
 940         //      if (i->second)
 941         //      {
 942         //              if ((common_channels(u,i->second)) && (u != i->second))
 943         //              {
 944         //                      WriteFrom(i->second->fd,u,"%s",textbuffer);
 945         //              }
 946         //      }
 947         //}
 948 }
 949
 950 void WriteOpers(char* text, ...)
 951 {
 952         if (!text)
 953         {
 954                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 955                 return;
 956         }
 957
 958         char textbuffer[MAXBUF];
 959         va_list argsPtr;
 960         va_start (argsPtr, text);
 961         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 962         va_end(argsPtr);
 963
 964         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 965         {
 966                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
 967                 {
 968                         if (strchr(i->second->modes,'o'))
 969                         {
 970                                 if (strchr(i->second->modes,'s'))
 971                                 {
 972                                         // send server notices to all with +s
 973                                         // (TODO: needs SNOMASKs)
 974                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 975                                 }
 976                         }
 977                 }
 978         }
 979 }
 980
 981 // returns TRUE of any users on channel C occupy server 'servername'.
 982
 983 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 984 {
 985         log(DEBUG,"ChanAnyOnThisServer");
 986
 987         std::vector<char*> *ulist = c->GetUsers();
 988         for (int j = 0; j < ulist->size(); j++)
 989         {
 990                 char* o = (*ulist)[j];
 991                 userrec* user = (userrec*)o;
 992                 if (!strcasecmp(user->server,servername))
 993                         return true;
 994         }
 995         return false;
 996
 997         //for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 998         //{
 999         //      if (has_channel(i->second,c))
1000         //      {
1001         //              if (!strcasecmp(i->second->server,servername))
1002         //              {
1003         //                      return true;
1004         //              }
1005         //      }
1006         //}
1007         return false;
1008 }
1009
1010 // returns true if user 'u' shares any common channels with any users on server 'servername'
1011
1012 bool CommonOnThisServer(userrec* u,const char* servername)
1013 {
1014         log(DEBUG,"ChanAnyOnThisServer");
1015
1016         for (int i = 0; i < MAXCHANS; i++)
1017         {
1018                 if (u->chans[i].channel)
1019                 {
1020                         std::vector<char*> *ulist = u->chans[i].channel->GetUsers();
1021                         for (int j = 0; j < ulist->size(); j++)
1022                         {
1023                                 char* o = (*ulist)[j];
1024                                 userrec* user = (userrec*)o;
1025                                 if (!strcasecmp(user->server,servername))
1026                                         return true;
1027                         }
1028                 }
1029         }
1030         return false;
1031
1032         //for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
1033         //{
1034         //      if ((common_channels(u,i->second)) && (u != i->second))
1035         //      {
1036         //              if (!strcasecmp(i->second->server,servername))
1037         //              {
1038         //                      log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
1039         //                      return true;
1040         //              }
1041         //      }
1042         //}
1043         //return false;
1044 }
1045
1046
1047 void NetSendToCommon(userrec* u, char* s)
1048 {
1049         char buffer[MAXBUF];
1050         snprintf(buffer,MAXBUF,"%s",s);
1051
1052         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
1053
1054         std::string msg = buffer;
1055         FOREACH_MOD OnPacketTransmit(msg,s);
1056         strlcpy(buffer,msg.c_str(),MAXBUF);
1057
1058         for (int j = 0; j < 32; j++)
1059         {
1060                 if (me[j] != NULL)
1061                 {
1062                         for (int k = 0; k < me[j]->connectors.size(); k++)
1063                         {
1064                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
1065                                 {
1066                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1067                                 }
1068                         }
1069                 }
1070         }
1071 }
1072
1073
1074 void NetSendToAll(char* s)
1075 {
1076         char buffer[MAXBUF];
1077         snprintf(buffer,MAXBUF,"%s",s);
1078
1079         log(DEBUG,"NetSendToAll: '%s'",s);
1080
1081         std::string msg = buffer;
1082         FOREACH_MOD OnPacketTransmit(msg,s);
1083         strlcpy(buffer,msg.c_str(),MAXBUF);
1084
1085         for (int j = 0; j < 32; j++)
1086         {
1087                 if (me[j] != NULL)
1088                 {
1089                         for (int k = 0; k < me[j]->connectors.size(); k++)
1090                         {
1091                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1092                         }
1093                 }
1094         }
1095 }
1096
1097 void NetSendToAllAlive(char* s)
1098 {
1099         char buffer[MAXBUF];
1100         snprintf(buffer,MAXBUF,"%s",s);
1101
1102         log(DEBUG,"NetSendToAllAlive: '%s'",s);
1103
1104         std::string msg = buffer;
1105         FOREACH_MOD OnPacketTransmit(msg,s);
1106         strlcpy(buffer,msg.c_str(),MAXBUF);
1107
1108         for (int j = 0; j < 32; j++)
1109         {
1110                 if (me[j] != NULL)
1111                 {
1112                         for (int k = 0; k < me[j]->connectors.size(); k++)
1113                         {
1114                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
1115                                 {
1116                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1117                                 }
1118                                 else
1119                                 {
1120                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
1121                                 }
1122                         }
1123                 }
1124         }
1125 }
1126
1127
1128 void NetSendToOne(char* target,char* s)
1129 {
1130         char buffer[MAXBUF];
1131         snprintf(buffer,MAXBUF,"%s",s);
1132
1133         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
1134
1135         std::string msg = buffer;
1136         FOREACH_MOD OnPacketTransmit(msg,s);
1137         strlcpy(buffer,msg.c_str(),MAXBUF);
1138
1139         for (int j = 0; j < 32; j++)
1140         {
1141                 if (me[j] != NULL)
1142                 {
1143                         for (int k = 0; k < me[j]->connectors.size(); k++)
1144                         {
1145                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1146                                 {
1147                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1148                                 }
1149                         }
1150                 }
1151         }
1152 }
1153
1154 void NetSendToAllExcept(const char* target,char* s)
1155 {
1156         char buffer[MAXBUF];
1157         snprintf(buffer,MAXBUF,"%s",s);
1158
1159         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
1160
1161         std::string msg = buffer;
1162         FOREACH_MOD OnPacketTransmit(msg,s);
1163         strlcpy(buffer,msg.c_str(),MAXBUF);
1164
1165         for (int j = 0; j < 32; j++)
1166         {
1167                 if (me[j] != NULL)
1168                 {
1169                         for (int k = 0; k < me[j]->connectors.size(); k++)
1170                         {
1171                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
1172                                 {
1173                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
1174                                 }
1175                         }
1176                 }
1177         }
1178 }
1179
1180
1181 void WriteMode(const char* modes, int flags, const char* text, ...)
1182 {
1183         if ((!text) || (!modes) || (!flags))
1184         {
1185                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1186                 return;
1187         }
1188
1189         char textbuffer[MAXBUF];
1190         va_list argsPtr;
1191         va_start (argsPtr, text);
1192         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1193         va_end(argsPtr);
1194
1195         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1196         {
1197                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1198                 {
1199                         bool send_to_user = false;
1200
1201                         if (flags == WM_AND)
1202                         {
1203                                 send_to_user = true;
1204                                 for (int n = 0; n < strlen(modes); n++)
1205                                 {
1206                                         if (!hasumode(i->second,modes[n]))
1207                                         {
1208                                                 send_to_user = false;
1209                                                 break;
1210                                         }
1211                                 }
1212                         }
1213                         else if (flags == WM_OR)
1214                         {
1215                                 send_to_user = false;
1216                                 for (int n = 0; n < strlen(modes); n++)
1217                                 {
1218                                         if (hasumode(i->second,modes[n]))
1219                                         {
1220                                                 send_to_user = true;
1221                                                 break;
1222                                         }
1223                                 }
1224                         }
1225
1226                         if (send_to_user)
1227                         {
1228                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1229                         }
1230                 }
1231         }
1232 }
1233
1234
1235 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1236 {
1237         if ((!text) || (!source))
1238         {
1239                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1240                 return;
1241         }
1242
1243         char textbuffer[MAXBUF];
1244         va_list argsPtr;
1245         va_start (argsPtr, text);
1246         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1247         va_end(argsPtr);
1248
1249         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1250         {
1251                 if ((i->second) && (i->second->fd != FD_MAGIC_NUMBER))
1252                 {
1253                         if (strchr(i->second->modes,'w'))
1254                         {
1255                                 WriteTo(source,i->second,"WALLOPS :%s",textbuffer);
1256                         }
1257                 }
1258         }
1259
1260         if (!local_only)
1261         {
1262                 char buffer[MAXBUF];
1263                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1264                 NetSendToAll(buffer);
1265         }
1266 }
1267
1268 /* convert a string to lowercase. Note following special circumstances
1269  * taken from RFC 1459. Many "official" server branches still hold to this
1270  * rule so i will too;
1271  *
1272  *  Because of IRC's scandanavian origin, the characters {}| are
1273  *  considered to be the lower case equivalents of the characters []\,
1274  *  respectively. This is a critical issue when determining the
1275  *  equivalence of two nicknames.
1276  */
1277
1278 void strlower(char *n)
1279 {
1280         if (!n)
1281         {
1282                 return;
1283         }
1284         for (int i = 0; i != strlen(n); i++)
1285         {
1286                 n[i] = tolower(n[i]);
1287                 if (n[i] == '[')
1288                         n[i] = '{';
1289                 if (n[i] == ']')
1290                         n[i] = '}';
1291                 if (n[i] == '\\')
1292                         n[i] = '|';
1293         }
1294 }
1295
1296
1297
1298 /* Find a user record by nickname and return a pointer to it */
1299
1300 userrec* Find(std::string nick)
1301 {
1302         user_hash::iterator iter = clientlist.find(nick);
1303
1304         if (iter == clientlist.end())
1305                 /* Couldn't find it */
1306                 return NULL;
1307
1308         return iter->second;
1309 }
1310
1311 /* find a channel record by channel name and return a pointer to it */
1312
1313 chanrec* FindChan(const char* chan)
1314 {
1315         if (!chan)
1316         {
1317                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1318                 return NULL;
1319         }
1320
1321         chan_hash::iterator iter = chanlist.find(chan);
1322
1323         if (iter == chanlist.end())
1324                 /* Couldn't find it */
1325                 return NULL;
1326
1327         return iter->second;
1328 }
1329
1330
1331 long GetMaxBans(char* name)
1332 {
1333         char CM[MAXBUF];
1334         for (int count = 0; count < ConfValueEnum("banlist",&config_f); count++)
1335         {
1336                 ConfValue("banlist","chan",count,CM,&config_f);
1337                 if (match(name,CM))
1338                 {
1339                         ConfValue("banlist","limit",count,CM,&config_f);
1340                         return atoi(CM);
1341                 }
1342         }
1343         return 64;
1344 }
1345
1346
1347 void purge_empty_chans(userrec* u)
1348 {
1349
1350         int go_again = 1, purge = 0;
1351
1352         // firstly decrement the count on each channel
1353         for (int f = 0; f < MAXCHANS; f++)
1354                 if (u->chans[f].channel)
1355                 {
1356                         u->chans[f].channel->DecUserCounter();
1357                         u->chans[f].channel->DelUser((char*)u);
1358                 }
1359
1360         for (int i = 0; i < MAXCHANS; i++)
1361         {
1362                 if (u->chans[i].channel)
1363                 {
1364                         if (!usercount(u->chans[i].channel))
1365                         {
1366                                 chan_hash::iterator i2 = chanlist.find(u->chans[i].channel->name);
1367                                 /* kill the record */
1368                                 if (i2 != chanlist.end())
1369                                 {
1370                                         log(DEBUG,"del_channel: destroyed: %s",i2->second->name);
1371                                         if (i2->second)
1372                                                 delete i2->second;
1373                                         chanlist.erase(i2);
1374                                         go_again = 1;
1375                                         purge++;
1376                                         u->chans[i].channel = NULL;
1377                                 }
1378                         }
1379                         else
1380                         {
1381                                 log(DEBUG,"skipped purge for %s",u->chans[i].channel->name);
1382                         }
1383                 }
1384         }
1385         log(DEBUG,"completed channel purge, killed %d",purge);
1386 }
1387
1388
1389 char scratch[MAXBUF];
1390 char sparam[MAXBUF];
1391
1392 char* chanmodes(chanrec *chan)
1393 {
1394         if (!chan)
1395         {
1396                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1397                 strcpy(scratch,"");
1398                 return scratch;
1399         }
1400
1401         strcpy(scratch,"");
1402         strcpy(sparam,"");
1403         if (chan->noexternal)
1404         {
1405                 strlcat(scratch,"n",MAXMODES);
1406         }
1407         if (chan->topiclock)
1408         {
1409                 strlcat(scratch,"t",MAXMODES);
1410         }
1411         if (strcmp(chan->key,""))
1412         {
1413                 strlcat(scratch,"k",MAXMODES);
1414         }
1415         if (chan->limit)
1416         {
1417                 strlcat(scratch,"l",MAXMODES);
1418         }
1419         if (chan->inviteonly)
1420         {
1421                 strlcat(scratch,"i",MAXMODES);
1422         }
1423         if (chan->moderated)
1424         {
1425                 strlcat(scratch,"m",MAXMODES);
1426         }
1427         if (chan->secret)
1428         {
1429                 strlcat(scratch,"s",MAXMODES);
1430         }
1431         if (chan->c_private)
1432         {
1433                 strlcat(scratch,"p",MAXMODES);
1434         }
1435         if (strcmp(chan->key,""))
1436         {
1437                 strlcat(sparam," ",MAXBUF);
1438                 strlcat(sparam,chan->key,MAXBUF);
1439         }
1440         if (chan->limit)
1441         {
1442                 char foo[24];
1443                 sprintf(foo," %d",chan->limit);
1444                 strlcat(sparam,foo,MAXBUF);
1445         }
1446         if (strlen(chan->custom_modes))
1447         {
1448                 strlcat(scratch,chan->custom_modes,MAXMODES);
1449                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1450                 {
1451                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1452                         if (extparam != "")
1453                         {
1454                                 strlcat(sparam," ",MAXBUF);
1455                                 strlcat(sparam,extparam.c_str(),MAXBUF);
1456                         }
1457                 }
1458         }
1459         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1460         strlcat(scratch,sparam,MAXMODES);
1461         return scratch;
1462 }
1463
1464
1465 /* compile a userlist of a channel into a string, each nick seperated by
1466  * spaces and op, voice etc status shown as @ and + */
1467
1468 void userlist(userrec *user,chanrec *c)
1469 {
1470         if ((!c) || (!user))
1471         {
1472                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1473                 return;
1474         }
1475
1476         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1477         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1478         {
1479                 if (has_channel(i->second,c))
1480                 {
1481                         if (isnick(i->second->nick))
1482                         {
1483                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1484                                 {
1485                                         /* user is +i, and source not on the channel, does not show
1486                                          * nick in NAMES list */
1487                                         continue;
1488                                 }
1489                                 strlcat(list,cmode(i->second,c),MAXBUF);
1490                                 strlcat(list,i->second->nick,MAXBUF);
1491                                 strlcat(list," ",MAXBUF);
1492                                 if (strlen(list)>(480-NICKMAX))
1493                                 {
1494                                         /* list overflowed into
1495                                          * multiple numerics */
1496                                         WriteServ(user->fd,"%s",list);
1497                                         snprintf(list,MAXBUF,"353 %s = %s :", user->nick, c->name);
1498                                 }
1499                         }
1500                 }
1501         }
1502         /* if whats left in the list isnt empty, send it */     if (list[strlen(list)-1] != ':')
1503         {
1504                 WriteServ(user->fd,"%s",list);
1505         }
1506 }
1507
1508 /* return a count of the users on a specific channel accounting for
1509  * invisible users who won't increase the count. e.g. for /LIST */
1510
1511 int usercount_i(chanrec *c)
1512 {
1513         int count = 0;
1514
1515         if (!c)
1516         {
1517                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1518                 return 0;
1519         }
1520
1521         strcpy(list,"");
1522         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1523         {
1524                 if (i->second)
1525                 {
1526                         if (has_channel(i->second,c))
1527                         {
1528                                 if (isnick(i->second->nick))
1529                                 {
1530                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1531                                         {
1532                                                 /* user is +i, and source not on the channel, does not show
1533                                                  * nick in NAMES list */
1534                                                 continue;
1535                                         }
1536                                         count++;
1537                                 }
1538                         }
1539                 }
1540         }
1541         log(DEBUG,"usercount_i: %s %d",c->name,count);
1542         return count;
1543 }
1544
1545
1546 int usercount(chanrec *c)
1547 {
1548         if (!c)
1549         {
1550                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1551                 return 0;
1552         }
1553         int count = c->GetUserCounter();
1554         log(DEBUG,"usercount: %s %d",c->name,count);
1555         return count;
1556 }
1557
1558
1559 /* add a channel to a user, creating the record for it if needed and linking
1560  * it to the user record */
1561
1562 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1563 {
1564         if ((!user) || (!cn))
1565         {
1566                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1567                 return 0;
1568         }
1569
1570         chanrec* Ptr;
1571         int created = 0;
1572         char cname[MAXBUF];
1573
1574         strncpy(cname,cn,MAXBUF);
1575
1576         // we MUST declare this wherever we use FOREACH_RESULT
1577         int MOD_RESULT = 0;
1578
1579         if (strlen(cname) > CHANMAX-1)
1580         {
1581                 cname[CHANMAX-1] = '\0';
1582         }
1583
1584         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1585
1586         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1587         {
1588                 return NULL; // already on the channel!
1589         }
1590
1591
1592         if (!FindChan(cname))
1593         {
1594                 MOD_RESULT = 0;
1595                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1596                 if (MOD_RESULT == 1) {
1597                         return NULL;
1598                 }
1599
1600                 /* create a new one */
1601                 log(DEBUG,"add_channel: creating: %s",cname);
1602                 {
1603                         chanlist[cname] = new chanrec();
1604
1605                         strlcpy(chanlist[cname]->name, cname,CHANMAX);
1606                         chanlist[cname]->topiclock = 1;
1607                         chanlist[cname]->noexternal = 1;
1608                         chanlist[cname]->created = TIME;
1609                         strcpy(chanlist[cname]->topic, "");
1610                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1611                         chanlist[cname]->topicset = 0;
1612                         Ptr = chanlist[cname];
1613                         log(DEBUG,"add_channel: created: %s",cname);
1614                         /* set created to 2 to indicate user
1615                          * is the first in the channel
1616                          * and should be given ops */
1617                         created = 2;
1618                 }
1619         }
1620         else
1621         {
1622                 /* channel exists, just fish out a pointer to its struct */
1623                 Ptr = FindChan(cname);
1624                 if (Ptr)
1625                 {
1626                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1627
1628                         // the override flag allows us to bypass channel modes
1629                         // and bans (used by servers)
1630                         if ((!override) || (!strcasecmp(user->server,ServerName)))
1631                         {
1632                                 log(DEBUG,"Not overriding...");
1633                                 MOD_RESULT = 0;
1634                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1635                                 if (MOD_RESULT == 1) {
1636                                         return NULL;
1637                                 }
1638                                 log(DEBUG,"MOD_RESULT=%d",MOD_RESULT);
1639
1640                                 if (!MOD_RESULT)
1641                                 {
1642                                         log(DEBUG,"add_channel: checking key, invite, etc");
1643                                         MOD_RESULT = 0;
1644                                         FOREACH_RESULT(OnCheckKey(user, Ptr, key ? key : ""));
1645                                         if (MOD_RESULT == 0)
1646                                         {
1647                                                 if (strcmp(Ptr->key,""))
1648                                                 {
1649                                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1650                                                         if (!key)
1651                                                         {
1652                                                                 log(DEBUG,"add_channel: no key given in JOIN");
1653                                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1654                                                                 return NULL;
1655                                                         }
1656                                                         else
1657                                                         {
1658                                                                 if (strcasecmp(key,Ptr->key))
1659                                                                 {
1660                                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1661                                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1662                                                                         return NULL;
1663                                                                 }
1664                                                         }
1665                                                 }
1666                                                 log(DEBUG,"add_channel: no key");
1667                                         }
1668                                         MOD_RESULT = 0;
1669                                         FOREACH_RESULT(OnCheckInvite(user, Ptr));
1670                                         if (MOD_RESULT == 0)
1671                                         {
1672                                                 if (Ptr->inviteonly)
1673                                                 {
1674                                                         log(DEBUG,"add_channel: channel is +i");
1675                                                         if (user->IsInvited(Ptr->name))
1676                                                         {
1677                                                                 /* user was invited to channel */
1678                                                                 /* there may be an optional channel NOTICE here */
1679                                                         }
1680                                                         else
1681                                                         {
1682                                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1683                                                                 return NULL;
1684                                                         }
1685                                                 }
1686                                                 log(DEBUG,"add_channel: channel is not +i");
1687                                         }
1688                                         MOD_RESULT = 0;
1689                                         FOREACH_RESULT(OnCheckLimit(user, Ptr));
1690                                         if (MOD_RESULT == 0)
1691                                         {
1692                                                 if (Ptr->limit)
1693                                                 {
1694                                                         if (usercount(Ptr) >= Ptr->limit)
1695                                                         {
1696                                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1697                                                                 return NULL;
1698                                                         }
1699                                                 }
1700                                         }
1701                                         log(DEBUG,"add_channel: about to walk banlist");
1702                                         MOD_RESULT = 0;
1703                                         FOREACH_RESULT(OnCheckBan(user, Ptr));
1704                                         if (MOD_RESULT == 0)
1705                                         {
1706                                                 /* check user against the channel banlist */
1707                                                 if (Ptr)
1708                                                 {
1709                                                         if (Ptr->bans.size())
1710                                                         {
1711                                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1712                                                                 {
1713                                                                         if (match(user->GetFullHost(),i->data))
1714                                                                         {
1715                                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1716                                                                                 return NULL;
1717                                                                         }
1718                                                                 }
1719                                                         }
1720                                                 }
1721                                                 log(DEBUG,"add_channel: bans checked");
1722                                         }
1723
1724                                 }
1725
1726
1727                                 if ((Ptr) && (user))
1728                                 {
1729                                         user->RemoveInvite(Ptr->name);
1730                                 }
1731
1732                                 log(DEBUG,"add_channel: invites removed");
1733
1734                         }
1735                         else
1736                         {
1737                                 log(DEBUG,"Overridden checks");
1738                         }
1739
1740
1741                 }
1742                 created = 1;
1743         }
1744
1745         log(DEBUG,"Passed channel checks");
1746
1747         for (int index =0; index != MAXCHANS; index++)
1748         {
1749                 log(DEBUG,"Check location %d",index);
1750                 if (user->chans[index].channel == NULL)
1751                 {
1752                         log(DEBUG,"Adding into their channel list at location %d",index);
1753
1754                         if (created == 2)
1755                         {
1756                                 /* first user in is given ops */
1757                                 user->chans[index].uc_modes = UCMODE_OP;
1758                         }
1759                         else
1760                         {
1761                                 user->chans[index].uc_modes = 0;
1762                         }
1763                         user->chans[index].channel = Ptr;
1764                         Ptr->IncUserCounter();
1765                         Ptr->AddUser((char*)user);
1766                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1767
1768                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1769                         {
1770                                 // use the stamdard J token with no privilages.
1771                                 char buffer[MAXBUF];
1772                                 if (created == 2)
1773                                 {
1774                                         snprintf(buffer,MAXBUF,"J %s @%s",user->nick,Ptr->name);
1775                                 }
1776                                 else
1777                                 {
1778                                         snprintf(buffer,MAXBUF,"J %s %s",user->nick,Ptr->name);
1779                                 }
1780                                 NetSendToAll(buffer);
1781                         }
1782
1783                         log(DEBUG,"Sent JOIN to client");
1784
1785                         if (Ptr->topicset)
1786                         {
1787                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1788                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1789                         }
1790                         userlist(user,Ptr);
1791                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1792                         //WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1793                         //WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1794                         FOREACH_MOD OnUserJoin(user,Ptr);
1795                         return Ptr;
1796                 }
1797         }
1798         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1799         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1800         return NULL;
1801 }
1802
1803 /* remove a channel from a users record, and remove the record from memory
1804  * if the channel has become empty */
1805
1806 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1807 {
1808         if ((!user) || (!cname))
1809         {
1810                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1811                 return NULL;
1812         }
1813
1814         chanrec* Ptr;
1815
1816         if ((!cname) || (!user))
1817         {
1818                 return NULL;
1819         }
1820
1821         Ptr = FindChan(cname);
1822
1823         if (!Ptr)
1824         {
1825                 return NULL;
1826         }
1827
1828         FOREACH_MOD OnUserPart(user,Ptr);
1829         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1830
1831         for (int i =0; i != MAXCHANS; i++)
1832         {
1833                 /* zap it from the channel list of the user */
1834                 if (user->chans[i].channel == Ptr)
1835                 {
1836                         if (reason)
1837                         {
1838                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1839
1840                                 if (!local)
1841                                 {
1842                                         char buffer[MAXBUF];
1843                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1844                                         NetSendToAll(buffer);
1845                                 }
1846
1847
1848                         }
1849                         else
1850                         {
1851                                 if (!local)
1852                                 {
1853                                         char buffer[MAXBUF];
1854                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1855                                         NetSendToAll(buffer);
1856                                 }
1857
1858                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1859                         }
1860                         user->chans[i].uc_modes = 0;
1861                         user->chans[i].channel = NULL;
1862                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1863                         break;
1864                 }
1865         }
1866
1867         Ptr->DecUserCounter();
1868         Ptr->DelUser((char*)user);
1869
1870         /* if there are no users left on the channel */
1871         if (!usercount(Ptr))
1872         {
1873                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1874
1875                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1876
1877                 /* kill the record */
1878                 if (iter != chanlist.end())
1879                 {
1880                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1881                         if (iter->second) delete iter->second;
1882                         chanlist.erase(iter);
1883                 }
1884         }
1885 }
1886
1887
1888 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1889 {
1890         if ((!src) || (!user) || (!Ptr) || (!reason))
1891         {
1892                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1893                 return;
1894         }
1895
1896         if ((!Ptr) || (!user) || (!src))
1897         {
1898                 return;
1899         }
1900
1901         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1902
1903         if (!has_channel(user,Ptr))
1904         {
1905                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1906                 return;
1907         }
1908
1909         int MOD_RESULT = 0;
1910         FOREACH_RESULT(OnAccessCheck(src,user,Ptr,AC_KICK));
1911         if (MOD_RESULT == ACR_DENY)
1912                 return;
1913
1914         if (MOD_RESULT == ACR_DEFAULT)
1915         {
1916                 if (((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr))) && (!is_uline(src->server)))
1917                 {
1918                         if (cstatus(src,Ptr) == STATUS_HOP)
1919                         {
1920                                 WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1921                         }
1922                         else
1923                         {
1924                                 WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1925                         }
1926
1927                         return;
1928                 }
1929         }
1930
1931         MOD_RESULT = 0;
1932         FOREACH_RESULT(OnUserPreKick(src,user,Ptr,reason));
1933         if (MOD_RESULT)
1934                 return;
1935
1936         FOREACH_MOD OnUserKick(src,user,Ptr,reason);
1937
1938         for (int i =0; i != MAXCHANS; i++)
1939         {
1940                 /* zap it from the channel list of the user */
1941                 if (user->chans[i].channel)
1942                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1943                 {
1944                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1945                         user->chans[i].uc_modes = 0;
1946                         user->chans[i].channel = NULL;
1947                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1948                         break;
1949                 }
1950         }
1951
1952         Ptr->DecUserCounter();
1953         Ptr->DelUser((char*)user);
1954
1955         /* if there are no users left on the channel */
1956         if (!usercount(Ptr))
1957         {
1958                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1959
1960                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1961
1962                 /* kill the record */
1963                 if (iter != chanlist.end())
1964                 {
1965                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1966                         if (iter->second) delete iter->second;
1967                         chanlist.erase(iter);
1968                 }
1969         }
1970 }
1971
1972
1973
1974
1975 /* This function pokes and hacks at a parameter list like the following:
1976  *
1977  * PART #winbot,#darkgalaxy :m00!
1978  *
1979  * to turn it into a series of individual calls like this:
1980  *
1981  * PART #winbot :m00!
1982  * PART #darkgalaxy :m00!
1983  *
1984  * The seperate calls are sent to a callback function provided by the caller
1985  * (the caller will usually call itself recursively). The callback function
1986  * must be a command handler. Calling this function on a line with no list causes
1987  * no action to be taken. You must provide a starting and ending parameter number
1988  * where the range of the list can be found, useful if you have a terminating
1989  * parameter as above which is actually not part of the list, or parameters
1990  * before the actual list as well. This code is used by many functions which
1991  * can function as "one to list" (see the RFC) */
1992
1993 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
1994 {
1995         char plist[MAXBUF];
1996         char *param;
1997         char *pars[32];
1998         char blog[32][MAXBUF];
1999         char blog2[32][MAXBUF];
2000         int j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
2001         char keystr[MAXBUF];
2002         char moo[MAXBUF];
2003
2004         for (int i = 0; i <32; i++)
2005                 strcpy(blog[i],"");
2006
2007         for (int i = 0; i <32; i++)
2008                 strcpy(blog2[i],"");
2009
2010         strcpy(moo,"");
2011         for (int i = 0; i <10; i++)
2012         {
2013                 if (!parameters[i])
2014                 {
2015                         parameters[i] = moo;
2016                 }
2017         }
2018         if (joins)
2019         {
2020                 if (pcnt > 1) /* we have a key to copy */
2021                 {
2022                         strlcpy(keystr,parameters[1],MAXBUF);
2023                 }
2024         }
2025
2026         if (!parameters[start])
2027         {
2028                 return 0;
2029         }
2030         if (!strchr(parameters[start],','))
2031         {
2032                 return 0;
2033         }
2034         strcpy(plist,"");
2035         for (int i = start; i <= end; i++)
2036         {
2037                 if (parameters[i])
2038                 {
2039                         strlcat(plist,parameters[i],MAXBUF);
2040                 }
2041         }
2042
2043         j = 0;
2044         param = plist;
2045
2046         t = strlen(plist);
2047         for (int i = 0; i < t; i++)
2048         {
2049                 if (plist[i] == ',')
2050                 {
2051                         plist[i] = '\0';
2052                         strlcpy(blog[j++],param,MAXBUF);
2053                         param = plist+i+1;
2054                         if (j>20)
2055                         {
2056                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
2057                                 return 1;
2058                         }
2059                 }
2060         }
2061         strlcpy(blog[j++],param,MAXBUF);
2062         total = j;
2063
2064         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
2065         {
2066                 strcat(keystr,",");
2067         }
2068
2069         if ((joins) && (keystr))
2070         {
2071                 if (strchr(keystr,','))
2072                 {
2073                         j = 0;
2074                         param = keystr;
2075                         t2 = strlen(keystr);
2076                         for (int i = 0; i < t2; i++)
2077                         {
2078                                 if (keystr[i] == ',')
2079                                 {
2080                                         keystr[i] = '\0';
2081                                         strlcpy(blog2[j++],param,MAXBUF);
2082                                         param = keystr+i+1;
2083                                 }
2084                         }
2085                         strlcpy(blog2[j++],param,MAXBUF);
2086                         total2 = j;
2087                 }
2088         }
2089
2090         for (j = 0; j < total; j++)
2091         {
2092                 if (blog[j])
2093                 {
2094                         pars[0] = blog[j];
2095                 }
2096                 for (q = end; q < pcnt-1; q++)
2097                 {
2098                         if (parameters[q+1])
2099                         {
2100                                 pars[q-end+1] = parameters[q+1];
2101                         }
2102                 }
2103                 if ((joins) && (parameters[1]))
2104                 {
2105                         if (pcnt > 1)
2106                         {
2107                                 pars[1] = blog2[j];
2108                         }
2109                         else
2110                         {
2111                                 pars[1] = NULL;
2112                         }
2113                 }
2114                 /* repeatedly call the function with the hacked parameter list */
2115                 if ((joins) && (pcnt > 1))
2116                 {
2117                         if (pars[1])
2118                         {
2119                                 // pars[1] already set up and containing key from blog2[j]
2120                                 fn(pars,2,u);
2121                         }
2122                         else
2123                         {
2124                                 pars[1] = parameters[1];
2125                                 fn(pars,2,u);
2126                         }
2127                 }
2128                 else
2129                 {
2130                         fn(pars,pcnt-(end-start),u);
2131                 }
2132         }
2133
2134         return 1;
2135 }
2136
2137
2138
2139 void kill_link(userrec *user,const char* r)
2140 {
2141         user_hash::iterator iter = clientlist.find(user->nick);
2142
2143         char reason[MAXBUF];
2144
2145         strncpy(reason,r,MAXBUF);
2146
2147         if (strlen(reason)>MAXQUIT)
2148         {
2149                 reason[MAXQUIT-1] = '\0';
2150         }
2151
2152         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2153         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2154         log(DEBUG,"closing fd %d",user->fd);
2155
2156         /* bugfix, cant close() a nonblocking socket (sux!) */
2157         if (user->registered == 7) {
2158                 FOREACH_MOD OnUserQuit(user);
2159                 WriteCommonExcept(user,"QUIT :%s",reason);
2160
2161                 // Q token must go to ALL servers!!!
2162                 char buffer[MAXBUF];
2163                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2164                 NetSendToAll(buffer);
2165         }
2166
2167         FOREACH_MOD OnUserDisconnect(user);
2168
2169         if (user->fd > -1)
2170         {
2171                 shutdown(user->fd,2);
2172                 close(user->fd);
2173         }
2174
2175         if (user->registered == 7) {
2176                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
2177                 AddWhoWas(user);
2178         }
2179
2180         if (iter != clientlist.end())
2181         {
2182                 log(DEBUG,"deleting user hash value %d",iter->second);
2183                 if ((iter->second) && (user->registered == 7)) {
2184                         if (iter->second) delete iter->second;
2185                 }
2186                 clientlist.erase(iter);
2187         }
2188
2189         if (user->registered == 7) {
2190                 purge_empty_chans(user);
2191         }
2192         //user = NULL;
2193 }
2194
2195 void kill_link_silent(userrec *user,const char* r)
2196 {
2197         user_hash::iterator iter = clientlist.find(user->nick);
2198
2199         char reason[MAXBUF];
2200
2201         strncpy(reason,r,MAXBUF);
2202
2203         if (strlen(reason)>MAXQUIT)
2204         {
2205                 reason[MAXQUIT-1] = '\0';
2206         }
2207
2208         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
2209         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
2210         log(DEBUG,"closing fd %d",user->fd);
2211
2212         /* bugfix, cant close() a nonblocking socket (sux!) */
2213         if (user->registered == 7) {
2214                 FOREACH_MOD OnUserQuit(user);
2215                 WriteCommonExcept(user,"QUIT :%s",reason);
2216
2217                 // Q token must go to ALL servers!!!
2218                 char buffer[MAXBUF];
2219                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
2220                 NetSendToAll(buffer);
2221         }
2222
2223         FOREACH_MOD OnUserDisconnect(user);
2224
2225         if (user->fd > -1)
2226         {
2227                 shutdown(user->fd,2);
2228                 close(user->fd);
2229         }
2230
2231         if (iter != clientlist.end())
2232         {
2233                 log(DEBUG,"deleting user hash value %d",iter->second);
2234                 if ((iter->second) && (user->registered == 7)) {
2235                         if (iter->second) delete iter->second;
2236                 }
2237                 clientlist.erase(iter);
2238         }
2239
2240         if (user->registered == 7) {
2241                 purge_empty_chans(user);
2242         }
2243 }
2244
2245
2246
2247 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
2248
2249 char* Passwd(userrec *user)
2250 {
2251         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2252         {
2253                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
2254                 {
2255                         return i->pass;
2256                 }
2257         }
2258         return "";
2259 }
2260
2261 bool IsDenied(userrec *user)
2262 {
2263         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2264         {
2265                 if (match(user->host,i->host) && (i->type == CC_DENY))
2266                 {
2267                         return true;
2268                 }
2269         }
2270         return false;
2271 }
2272
2273
2274
2275
2276 /* sends out an error notice to all connected clients (not to be used
2277  * lightly!) */
2278
2279 void send_error(char *s)
2280 {
2281         log(DEBUG,"send_error: %s",s);
2282         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2283         {
2284                 if (isnick(i->second->nick))
2285                 {
2286                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
2287                 }
2288                 else
2289                 {
2290                         // fix - unregistered connections receive ERROR, not NOTICE
2291                         Write(i->second->fd,"ERROR :%s",s);
2292                 }
2293         }
2294 }
2295
2296 void Error(int status)
2297 {
2298         signal (SIGALRM, SIG_IGN);
2299         signal (SIGPIPE, SIG_IGN);
2300         signal (SIGTERM, SIG_IGN);
2301         signal (SIGABRT, SIG_IGN);
2302         signal (SIGSEGV, SIG_IGN);
2303         signal (SIGURG, SIG_IGN);
2304         signal (SIGKILL, SIG_IGN);
2305         log(DEFAULT,"*** fell down a pothole in the road to perfection ***");
2306         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
2307         Exit(status);
2308 }
2309
2310
2311 int main(int argc, char **argv)
2312 {
2313         Start();
2314         srand(time(NULL));
2315         log(DEBUG,"*** InspIRCd starting up!");
2316         if (!FileExists(CONFIG_FILE))
2317         {
2318                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
2319                 log(DEFAULT,"main: no config");
2320                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
2321                 Exit(ERROR);
2322         }
2323         if (argc > 1) {
2324                 for (int i = 1; i < argc; i++)
2325                 {
2326                         if (!strcmp(argv[i],"-nofork")) {
2327                                 nofork = true;
2328                         }
2329                         if (!strcmp(argv[i],"-wait")) {
2330                                 sleep(6);
2331                         }
2332                         if (!strcmp(argv[i],"-nolimit")) {
2333                                 unlimitcore = true;
2334                         }
2335                 }
2336         }
2337         strlcpy(MyExecutable,argv[0],MAXBUF);
2338
2339         if (InspIRCd() == ERROR)
2340         {
2341                 log(DEFAULT,"main: daemon function bailed");
2342                 printf("ERROR: could not initialise. Shutting down.\n");
2343                 Exit(ERROR);
2344         }
2345         Exit(TRUE);
2346         return 0;
2347 }
2348
2349 template<typename T> inline string ConvToStr(const T &in)
2350 {
2351         stringstream tmp;
2352         if (!(tmp << in)) return string();
2353         return tmp.str();
2354 }
2355
2356 /* re-allocates a nick in the user_hash after they change nicknames,
2357  * returns a pointer to the new user as it may have moved */
2358
2359 userrec* ReHashNick(char* Old, char* New)
2360 {
2361         user_hash::iterator newnick;
2362         user_hash::iterator oldnick = clientlist.find(Old);
2363
2364         log(DEBUG,"ReHashNick: %s %s",Old,New);
2365
2366         if (!strcasecmp(Old,New))
2367         {
2368                 log(DEBUG,"old nick is new nick, skipping");
2369                 return oldnick->second;
2370         }
2371
2372         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
2373
2374         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
2375
2376         clientlist[New] = new userrec();
2377         clientlist[New] = oldnick->second;
2378         clientlist.erase(oldnick);
2379
2380         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
2381
2382         return clientlist[New];
2383 }
2384
2385 /* adds or updates an entry in the whowas list */
2386 void AddWhoWas(userrec* u)
2387 {
2388         user_hash::iterator iter = whowas.find(u->nick);
2389         userrec *a = new userrec();
2390         strlcpy(a->nick,u->nick,NICKMAX);
2391         strlcpy(a->ident,u->ident,64);
2392         strlcpy(a->dhost,u->dhost,256);
2393         strlcpy(a->host,u->host,256);
2394         strlcpy(a->fullname,u->fullname,128);
2395         strlcpy(a->server,u->server,256);
2396         a->signon = u->signon;
2397
2398         /* MAX_WHOWAS:   max number of /WHOWAS items
2399          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
2400          *               can be replaced by a newer one
2401          */
2402
2403         if (iter == whowas.end())
2404         {
2405                 if (whowas.size() == WHOWAS_MAX)
2406                 {
2407                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
2408                         {
2409                                 // 3600 seconds in an hour ;)
2410                                 if ((i->second->signon)<(TIME-(WHOWAS_STALE*3600)))
2411                                 {
2412                                         if (i->second) delete i->second;
2413                                         i->second = a;
2414                                         log(DEBUG,"added WHOWAS entry, purged an old record");
2415                                         return;
2416                                 }
2417                         }
2418                 }
2419                 else
2420                 {
2421                         log(DEBUG,"added fresh WHOWAS entry");
2422                         whowas[a->nick] = a;
2423                 }
2424         }
2425         else
2426         {
2427                 log(DEBUG,"updated WHOWAS entry");
2428                 if (iter->second) delete iter->second;
2429                 iter->second = a;
2430         }
2431 }
2432
2433
2434 /* add a client connection to the sockets list */
2435 void AddClient(int socket, char* host, int port, bool iscached, char* ip)
2436 {
2437         string tempnick;
2438         char tn2[MAXBUF];
2439         user_hash::iterator iter;
2440
2441         tempnick = ConvToStr(socket) + "-unknown";
2442         sprintf(tn2,"%d-unknown",socket);
2443
2444         iter = clientlist.find(tempnick);
2445
2446         if (iter != clientlist.end()) return;
2447
2448         /*
2449          * It is OK to access the value here this way since we know
2450          * it exists, we just created it above.
2451          *
2452          * At NO other time should you access a value in a map or a
2453          * hash_map this way.
2454          */
2455         clientlist[tempnick] = new userrec();
2456
2457         NonBlocking(socket);
2458         log(DEBUG,"AddClient: %d %s %d %s",socket,host,port,ip);
2459
2460         clientlist[tempnick]->fd = socket;
2461         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
2462         strncpy(clientlist[tempnick]->host, host,160);
2463         strncpy(clientlist[tempnick]->dhost, host,160);
2464         strncpy(clientlist[tempnick]->server, ServerName,256);
2465         strncpy(clientlist[tempnick]->ident, "unknown",12);
2466         clientlist[tempnick]->registered = 0;
2467         clientlist[tempnick]->signon = TIME+dns_timeout;
2468         clientlist[tempnick]->lastping = 1;
2469         clientlist[tempnick]->port = port;
2470         strncpy(clientlist[tempnick]->ip,ip,32);
2471
2472         // set the registration timeout for this user
2473         unsigned long class_regtimeout = 90;
2474         int class_flood = 0;
2475
2476         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
2477         {
2478                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
2479                 {
2480                         class_regtimeout = (unsigned long)i->registration_timeout;
2481                         class_flood = i->flood;
2482                         clientlist[tempnick]->pingmax = i->pingtime;
2483                         break;
2484                 }
2485         }
2486
2487         clientlist[tempnick]->nping = TIME+clientlist[tempnick]->pingmax+dns_timeout;
2488         clientlist[tempnick]->timeout = TIME+class_regtimeout;
2489         clientlist[tempnick]->flood = class_flood;
2490
2491         for (int i = 0; i < MAXCHANS; i++)
2492         {
2493                 clientlist[tempnick]->chans[i].channel = NULL;
2494                 clientlist[tempnick]->chans[i].uc_modes = 0;
2495         }
2496
2497         if (clientlist.size() == MAXCLIENTS)
2498                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
2499
2500
2501         char* e = matches_exception(ip);
2502         if (!e)
2503         {
2504                 char* r = matches_zline(ip);
2505                 if (r)
2506                 {
2507                         char reason[MAXBUF];
2508                         snprintf(reason,MAXBUF,"Z-Lined: %s",r);
2509                         kill_link(clientlist[tempnick],reason);
2510                 }
2511         }
2512 }
2513
2514 // this function counts all users connected, wether they are registered or NOT.
2515 int usercnt(void)
2516 {
2517         return clientlist.size();
2518 }
2519
2520 // this counts only registered users, so that the percentages in /MAP don't mess up when users are sitting in an unregistered state
2521 int registered_usercount(void)
2522 {
2523         int c = 0;
2524         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2525         {
2526                 if ((i->second->fd) && (isnick(i->second->nick))) c++;
2527         }
2528         return c;
2529 }
2530
2531 int usercount_invisible(void)
2532 {
2533         int c = 0;
2534
2535         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2536         {
2537                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
2538         }
2539         return c;
2540 }
2541
2542 int usercount_opers(void)
2543 {
2544         int c = 0;
2545
2546         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2547         {
2548                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
2549         }
2550         return c;
2551 }
2552
2553 int usercount_unknown(void)
2554 {
2555         int c = 0;
2556
2557         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2558         {
2559                 if ((i->second->fd) && (i->second->registered != 7))
2560                         c++;
2561         }
2562         return c;
2563 }
2564
2565 long chancount(void)
2566 {
2567         return chanlist.size();
2568 }
2569
2570 long count_servs(void)
2571 {
2572         int c = 0;
2573         for (int i = 0; i < 32; i++)
2574         {
2575                 if (me[i] != NULL)
2576                 {
2577                         for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2578                         {
2579                                 if (strcasecmp(j->GetServerName().c_str(),ServerName))
2580                                 {
2581                                         c++;
2582                                 }
2583                         }
2584                 }
2585         }
2586         return c;
2587 }
2588
2589 long servercount(void)
2590 {
2591         return count_servs()+1;
2592 }
2593
2594 long local_count()
2595 {
2596         int c = 0;
2597         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2598         {
2599                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
2600         }
2601         return c;
2602 }
2603
2604
2605 void ShowMOTD(userrec *user)
2606 {
2607         std::string WholeMOTD = "";
2608         if (!MOTD.size())
2609         {
2610                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
2611                 return;
2612         }
2613         WholeMOTD = std::string(":") + std::string(ServerName) + std::string(" 375 ") + std::string(user->nick) + std::string(" :- ") + std::string(ServerName) + " message of the day\r\n";
2614         for (int i = 0; i != MOTD.size(); i++)
2615         {
2616                 WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 372 ") + std::string(user->nick) + std::string(" :- ") + MOTD[i] + std::string("\r\n");
2617         }
2618         WholeMOTD = WholeMOTD + std::string(":") + std::string(ServerName) + std::string(" 376 ") + std::string(user->nick) + std::string(" :End of message of the day.\r\n");
2619         // only one write operation
2620         send(user->fd,WholeMOTD.c_str(),WholeMOTD.length(),0);
2621
2622 }
2623
2624 void ShowRULES(userrec *user)
2625 {
2626         if (!RULES.size())
2627         {
2628                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
2629                 return;
2630         }
2631         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
2632         for (int i = 0; i != RULES.size(); i++)
2633         {
2634                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
2635         }
2636         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
2637 }
2638
2639 /* shows the message of the day, and any other on-logon stuff */
2640 void FullConnectUser(userrec* user)
2641 {
2642         user->registered = 7;
2643         user->idle_lastmsg = TIME;
2644         log(DEBUG,"ConnectUser: %s",user->nick);
2645
2646         if (strcmp(Passwd(user),"") && (!user->haspassed))
2647         {
2648                 kill_link(user,"Invalid password");
2649                 return;
2650         }
2651         if (IsDenied(user))
2652         {
2653                 kill_link(user,"Unauthorised connection");
2654                 return;
2655         }
2656
2657         char match_against[MAXBUF];
2658         snprintf(match_against,MAXBUF,"%s@%s",user->ident,user->host);
2659         char* e = matches_exception(match_against);
2660         if (!e)
2661         {
2662                 char* r = matches_gline(match_against);
2663                 if (r)
2664                 {
2665                         char reason[MAXBUF];
2666                         snprintf(reason,MAXBUF,"G-Lined: %s",r);
2667                         kill_link_silent(user,reason);
2668                         return;
2669                 }
2670                 r = matches_kline(user->host);
2671                 if (r)
2672                 {
2673                         char reason[MAXBUF];
2674                         snprintf(reason,MAXBUF,"K-Lined: %s",r);
2675                         kill_link_silent(user,reason);
2676                         return;
2677                 }
2678         }
2679
2680         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
2681         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
2682         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
2683         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
2684         WriteServ(user->fd,"004 %s %s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
2685         // the neatest way to construct the initial 005 numeric, considering the number of configure constants to go in it...
2686         std::stringstream v;
2687         v << "MESHED WALLCHOPS MODES=13 CHANTYPES=# PREFIX=(ohv)@%+ MAP SAFELIST MAXCHANNELS=" << MAXCHANS;
2688         v << " MAXBANS=60 NICKLEN=" << NICKMAX;
2689         v << " TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 CHANMODES=ohvb,k,l,psmnti NETWORK=";
2690         v << std::string(Network);
2691         std::string data005 = v.str();
2692         FOREACH_MOD On005Numeric(data005);
2693         // anfl @ #ratbox, efnet reminded me that according to the RFC this cant contain more than 13 tokens per line...
2694         // so i'd better split it :)
2695         std::stringstream out(data005);
2696         std::string token = "";
2697         std::string line5 = "";
2698         int token_counter = 0;
2699         while (!out.eof())
2700         {
2701                 out >> token;
2702                 line5 = line5 + token + " ";
2703                 token_counter++;
2704                 if ((token_counter >= 13) || (out.eof() == true))
2705                 {
2706                         WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
2707                         line5 = "";
2708                         token_counter = 0;
2709                 }
2710         }
2711         ShowMOTD(user);
2712         FOREACH_MOD OnUserConnect(user);
2713         WriteOpers("*** Client connecting on port %d: %s!%s@%s [%s]",user->port,user->nick,user->ident,user->host,user->ip);
2714
2715         char buffer[MAXBUF];
2716         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);
2717         NetSendToAll(buffer);
2718 }
2719
2720
2721 // this returns 1 when all modules are satisfied that the user should be allowed onto the irc server
2722 // (until this returns true, a user will block in the waiting state, waiting to connect up to the
2723 // registration timeout maximum seconds)
2724 bool AllModulesReportReady(userrec* user)
2725 {
2726         for (int i = 0; i <= MODCOUNT; i++)
2727         {
2728                 int res = modules[i]->OnCheckReady(user);
2729                         if (!res)
2730                                 return false;
2731         }
2732         return true;
2733 }
2734
2735 /* shows the message of the day, and any other on-logon stuff */
2736 void ConnectUser(userrec *user)
2737 {
2738         // dns is already done, things are fast. no need to wait for dns to complete just pass them straight on
2739         if ((user->dns_done) && (user->registered >= 3) && (AllModulesReportReady(user)))
2740         {
2741                 FullConnectUser(user);
2742         }
2743 }
2744
2745 void handle_version(char **parameters, int pcnt, userrec *user)
2746 {
2747         char Revision[] = "$Revision$";
2748
2749         char *s1 = Revision;
2750         char *savept;
2751         char *v2 = strtok_r(s1," ",&savept);
2752         s1 = savept;
2753         v2 = strtok_r(s1," ",&savept);
2754         s1 = savept;
2755
2756         WriteServ(user->fd,"351 %s :%s Rev. %s %s :%s (O=%d)",user->nick,VERSION,v2,ServerName,SYSTEM,OPTIMISATION);
2757 }
2758
2759
2760 // calls a handler function for a command
2761
2762 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
2763 {
2764                 for (int i = 0; i < cmdlist.size(); i++)
2765                 {
2766                         if (!strcasecmp(cmdlist[i].command,commandname))
2767                         {
2768                                 if (cmdlist[i].handler_function)
2769                                 {
2770                                         if (pcnt>=cmdlist[i].min_params)
2771                                         {
2772                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
2773                                                 {
2774                                                         cmdlist[i].handler_function(parameters,pcnt,user);
2775                                                 }
2776                                         }
2777                                 }
2778                         }
2779                 }
2780 }
2781
2782 void DoSplitEveryone()
2783 {
2784         bool go_again = true;
2785         while (go_again)
2786         {
2787                 go_again = false;
2788                 for (int i = 0; i < 32; i++)
2789                 {
2790                         if (me[i] != NULL)
2791                         {
2792                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
2793                                 {
2794                                         if (strcasecmp(j->GetServerName().c_str(),ServerName))
2795                                         {
2796                                                 j->routes.clear();
2797                                                 j->CloseConnection();
2798                                                 me[i]->connectors.erase(j);
2799                                                 go_again = true;
2800                                                 break;
2801                                         }
2802                                 }
2803                         }
2804                 }
2805         }
2806         log(DEBUG,"Removed server. Will remove clients...");
2807         // iterate through the userlist and remove all users on this server.
2808         // because we're dealing with a mesh, we dont have to deal with anything
2809         // "down-route" from this server (nice huh)
2810         go_again = true;
2811         char reason[MAXBUF];
2812         while (go_again)
2813         {
2814                 go_again = false;
2815                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
2816                 {
2817                         if (strcasecmp(u->second->server,ServerName))
2818                         {
2819                                 snprintf(reason,MAXBUF,"%s %s",ServerName,u->second->server);
2820                                 kill_link(u->second,reason);
2821                                 go_again = true;
2822                                 break;
2823                         }
2824                 }
2825         }
2826 }
2827
2828
2829
2830 char islast(const char* s)
2831 {
2832         char c = '`';
2833         for (int j = 0; j < 32; j++)
2834         {
2835                 if (me[j] != NULL)
2836                 {
2837                         for (int k = 0; k < me[j]->connectors.size(); k++)
2838                         {
2839                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2840                                 {
2841                                         c = '|';
2842                                 }
2843                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
2844                                 {
2845                                         c = '`';
2846                                 }
2847                         }
2848                 }
2849         }
2850         return c;
2851 }
2852
2853 long map_count(const char* s)
2854 {
2855         int c = 0;
2856         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
2857         {
2858                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
2859         }
2860         return c;
2861 }
2862
2863
2864 void force_nickchange(userrec* user,const char* newnick)
2865 {
2866         char nick[MAXBUF];
2867         int MOD_RESULT = 0;
2868
2869         strcpy(nick,"");
2870
2871         FOREACH_RESULT(OnUserPreNick(user,newnick));
2872         if (MOD_RESULT) {
2873                 kill_link(user,"Nickname collision");
2874                 return;
2875         }
2876         if (matches_qline(newnick))
2877         {
2878                 kill_link(user,"Nickname collision");
2879                 return;
2880         }
2881
2882         if (user)
2883         {
2884                 if (newnick)
2885                 {
2886                         strncpy(nick,newnick,MAXBUF);
2887                 }
2888                 if (user->registered == 7)
2889                 {
2890                         char* pars[1];
2891                         pars[0] = nick;
2892                         handle_nick(pars,1,user);
2893                 }
2894         }
2895 }
2896
2897
2898 int process_parameters(char **command_p,char *parameters)
2899 {
2900         int j = 0;
2901         int q = strlen(parameters);
2902         if (!q)
2903         {
2904                 /* no parameters, command_p invalid! */
2905                 return 0;
2906         }
2907         if (parameters[0] == ':')
2908         {
2909                 command_p[0] = parameters+1;
2910                 return 1;
2911         }
2912         if (q)
2913         {
2914                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
2915                 {
2916                         /* only one parameter */
2917                         command_p[0] = parameters;
2918                         if (parameters[0] == ':')
2919                         {
2920                                 if (strchr(parameters,' ') != NULL)
2921                                 {
2922                                         command_p[0]++;
2923                                 }
2924                         }
2925                         return 1;
2926                 }
2927         }
2928         command_p[j++] = parameters;
2929         for (int i = 0; i <= q; i++)
2930         {
2931                 if (parameters[i] == ' ')
2932                 {
2933                         command_p[j++] = parameters+i+1;
2934                         parameters[i] = '\0';
2935                         if (command_p[j-1][0] == ':')
2936                         {
2937                                 *command_p[j-1]++; /* remove dodgy ":" */
2938                                 break;
2939                                 /* parameter like this marks end of the sequence */
2940                         }
2941                 }
2942         }
2943         return j; /* returns total number of items in the list */
2944 }
2945
2946 void process_command(userrec *user, char* cmd)
2947 {
2948         char *parameters;
2949         char *command;
2950         char *command_p[127];
2951         char p[MAXBUF], temp[MAXBUF];
2952         int j, items, cmd_found;
2953
2954         for (int i = 0; i < 127; i++)
2955                 command_p[i] = NULL;
2956
2957         if (!user)
2958         {
2959                 return;
2960         }
2961         if (!cmd)
2962         {
2963                 return;
2964         }
2965         if (!strcmp(cmd,""))
2966         {
2967                 return;
2968         }
2969
2970         int total_params = 0;
2971         if (strlen(cmd)>2)
2972         {
2973                 for (int q = 0; q < strlen(cmd)-1; q++)
2974                 {
2975                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
2976                         {
2977                                 total_params++;
2978                                 // found a 'trailing', we dont count them after this.
2979                                 break;
2980                         }
2981                         if (cmd[q] == ' ')
2982                                 total_params++;
2983                 }
2984         }
2985
2986         // another phidjit bug...
2987         if (total_params > 126)
2988         {
2989                 *(strchr(cmd,' ')) = '\0';
2990                 WriteServ(user->fd,"421 %s %s :Too many parameters given",user->nick,cmd);
2991                 return;
2992         }
2993
2994         strlcpy(temp,cmd,MAXBUF);
2995
2996         std::string tmp = cmd;
2997         for (int i = 0; i <= MODCOUNT; i++)
2998         {
2999                 std::string oldtmp = tmp;
3000                 modules[i]->OnServerRaw(tmp,true,user);
3001                 if (oldtmp != tmp)
3002                 {
3003                         log(DEBUG,"A Module changed the input string!");
3004                         log(DEBUG,"New string: %s",tmp.c_str());
3005                         log(DEBUG,"Old string: %s",oldtmp.c_str());
3006                         break;
3007                 }
3008         }
3009         strlcpy(cmd,tmp.c_str(),MAXBUF);
3010         strlcpy(temp,cmd,MAXBUF);
3011
3012         if (!strchr(cmd,' '))
3013         {
3014                 /* no parameters, lets skip the formalities and not chop up
3015                  * the string */
3016                 log(DEBUG,"About to preprocess command with no params");
3017                 items = 0;
3018                 command_p[0] = NULL;
3019                 parameters = NULL;
3020                 for (int i = 0; i <= strlen(cmd); i++)
3021                 {
3022                         cmd[i] = toupper(cmd[i]);
3023                 }
3024                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
3025                 command = cmd;
3026         }
3027         else
3028         {
3029                 strcpy(cmd,"");
3030                 j = 0;
3031                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
3032                 for (int i = 0; i < strlen(temp); i++)
3033                 {
3034                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
3035                         {
3036                                 cmd[j++] = temp[i];
3037                                 cmd[j] = 0;
3038                         }
3039                 }
3040                 /* split the full string into a command plus parameters */
3041                 parameters = p;
3042                 strcpy(p," ");
3043                 command = cmd;
3044                 if (strchr(cmd,' '))
3045                 {
3046                         for (int i = 0; i <= strlen(cmd); i++)
3047                         {
3048                                 /* capitalise the command ONLY, leave params intact */
3049                                 cmd[i] = toupper(cmd[i]);
3050                                 /* are we nearly there yet?! :P */
3051                                 if (cmd[i] == ' ')
3052                                 {
3053                                         command = cmd;
3054                                         parameters = cmd+i+1;
3055                                         cmd[i] = '\0';
3056                                         break;
3057                                 }
3058                         }
3059                 }
3060                 else
3061                 {
3062                         for (int i = 0; i <= strlen(cmd); i++)
3063                         {
3064                                 cmd[i] = toupper(cmd[i]);
3065                         }
3066                 }
3067
3068         }
3069         cmd_found = 0;
3070
3071         if (strlen(command)>MAXCOMMAND)
3072         {
3073                 WriteServ(user->fd,"421 %s %s :Command too long",user->nick,command);
3074                 return;
3075         }
3076
3077         for (int x = 0; x < strlen(command); x++)
3078         {
3079                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
3080                 {
3081                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
3082                         {
3083                                 if (strchr("@!\"$%^&*(){}[]_=+;:'#~,<>/?\\|`",command[x]))
3084                                 {
3085                                         WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3086                                         return;
3087                                 }
3088                         }
3089                 }
3090         }
3091
3092         for (int i = 0; i != cmdlist.size(); i++)
3093         {
3094                 if (strcmp(cmdlist[i].command,""))
3095                 {
3096                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
3097                         {
3098                                 log(DEBUG,"Found matching command");
3099
3100                                 if (parameters)
3101                                 {
3102                                         if (strcmp(parameters,""))
3103                                         {
3104                                                 items = process_parameters(command_p,parameters);
3105                                         }
3106                                         else
3107                                         {
3108                                                 items = 0;
3109                                                 command_p[0] = NULL;
3110                                         }
3111                                 }
3112                                 else
3113                                 {
3114                                         items = 0;
3115                                         command_p[0] = NULL;
3116                                 }
3117
3118                                 if (user)
3119                                 {
3120                                         log(DEBUG,"Processing command");
3121
3122                                         /* activity resets the ping pending timer */
3123                                         user->nping = TIME + user->pingmax;
3124                                         if ((items) < cmdlist[i].min_params)
3125                                         {
3126                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
3127                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
3128                                                 return;
3129                                         }
3130                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
3131                                         {
3132                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3133                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
3134                                                 cmd_found = 1;
3135                                                 return;
3136                                         }
3137                                         if ((cmdlist[i].flags_needed) && (!user->HasPermission(command)))
3138                                         {
3139                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
3140                                                 WriteServ(user->fd,"481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command);
3141                                                 cmd_found = 1;
3142                                                 return;
3143                                         }
3144                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
3145                                          * deny command! */
3146                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
3147                                         {
3148                                                 if ((!isnick(user->nick)) || (user->registered != 7))
3149                                                 {
3150                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3151                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
3152                                                         return;
3153                                                 }
3154                                         }
3155                                         if ((user->registered == 7) && (!strchr(user->modes,'o')))
3156                                         {
3157                                                 char* mycmd;
3158                                                 char* savept2;
3159                                                 mycmd = strtok_r(DisabledCommands," ",&savept2);
3160                                                 while (mycmd)
3161                                                 {
3162                                                         if (!strcasecmp(mycmd,command))
3163                                                         {
3164                                                                 // command is disabled!
3165                                                                 WriteServ(user->fd,"421 %s %s :This command has been disabled.",user->nick,command);
3166                                                                 return;
3167                                                         }
3168                                                         mycmd = strtok_r(NULL," ",&savept2);
3169                                                 }
3170
3171
3172                                         }
3173                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
3174                                         {
3175                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
3176                                                 if (cmdlist[i].handler_function)
3177                                                 {
3178
3179                                                         /* ikky /stats counters */
3180                                                         if (temp)
3181                                                         {
3182                                                                 if (user)
3183                                                                 {
3184                                                                         user->bytes_in += strlen(temp);
3185                                                                         user->cmds_in++;
3186                                                                         user->bytes_out+=strlen(temp);
3187                                                                         user->cmds_out++;
3188                                                                 }
3189                                                                 cmdlist[i].use_count++;
3190                                                                 cmdlist[i].total_bytes+=strlen(temp);
3191                                                         }
3192
3193                                                         int MOD_RESULT = 0;
3194                                                         FOREACH_RESULT(OnPreCommand(command,command_p,items,user));
3195                                                         if (MOD_RESULT == 1) {
3196                                                                 return;
3197                                                         }
3198
3199                                                         /* WARNING: nothing may come after the
3200                                                          * command handler call, as the handler
3201                                                          * may free the user structure! */
3202
3203                                                         cmdlist[i].handler_function(command_p,items,user);
3204                                                 }
3205                                                 return;
3206                                         }
3207                                         else
3208                                         {
3209                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
3210                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
3211                                                 return;
3212                                         }
3213                                 }
3214                                 cmd_found = 1;
3215                         }
3216                 }
3217         }
3218         if ((!cmd_found) && (user))
3219         {
3220                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
3221                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
3222         }
3223 }
3224
3225
3226 void createcommand(char* cmd, handlerfunc f, char flags, int minparams,char* source)
3227 {
3228         command_t comm;
3229         /* create the command and push it onto the table */
3230         strlcpy(comm.command,cmd,MAXBUF);
3231         strlcpy(comm.source,source,MAXBUF);
3232         comm.handler_function = f;
3233         comm.flags_needed = flags;
3234         comm.min_params = minparams;
3235         comm.use_count = 0;
3236         comm.total_bytes = 0;
3237         cmdlist.push_back(comm);
3238         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
3239 }
3240
3241 bool removecommands(const char* source)
3242 {
3243         bool go_again = true;
3244         while (go_again)
3245         {
3246                 go_again = false;
3247                 for (std::deque<command_t>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
3248                 {
3249                         if (!strcmp(i->source,source))
3250                         {
3251                                 log(DEBUG,"removecommands(%s) Removing dependent command: %s",i->source,i->command);
3252                                 cmdlist.erase(i);
3253                                 go_again = true;
3254                                 break;
3255                         }
3256                 }
3257         }
3258         return true;
3259 }
3260
3261 void SetupCommandTable(void)
3262 {
3263         createcommand("USER",handle_user,0,4,"<core>");
3264         createcommand("NICK",handle_nick,0,1,"<core>");
3265         createcommand("QUIT",handle_quit,0,0,"<core>");
3266         createcommand("VERSION",handle_version,0,0,"<core>");
3267         createcommand("PING",handle_ping,0,1,"<core>");
3268         createcommand("PONG",handle_pong,0,1,"<core>");
3269         createcommand("ADMIN",handle_admin,0,0,"<core>");
3270         createcommand("PRIVMSG",handle_privmsg,0,2,"<core>");
3271         createcommand("INFO",handle_info,0,0,"<core>");
3272         createcommand("TIME",handle_time,0,0,"<core>");
3273         createcommand("WHOIS",handle_whois,0,1,"<core>");
3274         createcommand("WALLOPS",handle_wallops,'o',1,"<core>");
3275         createcommand("NOTICE",handle_notice,0,2,"<core>");
3276         createcommand("JOIN",handle_join,0,1,"<core>");
3277         createcommand("NAMES",handle_names,0,0,"<core>");
3278         createcommand("PART",handle_part,0,1,"<core>");
3279         createcommand("KICK",handle_kick,0,2,"<core>");
3280         createcommand("MODE",handle_mode,0,1,"<core>");
3281         createcommand("TOPIC",handle_topic,0,1,"<core>");
3282         createcommand("WHO",handle_who,0,1,"<core>");
3283         createcommand("MOTD",handle_motd,0,0,"<core>");
3284         createcommand("RULES",handle_rules,0,0,"<core>");
3285         createcommand("OPER",handle_oper,0,2,"<core>");
3286         createcommand("LIST",handle_list,0,0,"<core>");
3287         createcommand("DIE",handle_die,'o',1,"<core>");
3288         createcommand("RESTART",handle_restart,'o',1,"<core>");
3289         createcommand("KILL",handle_kill,'o',2,"<core>");
3290         createcommand("REHASH",handle_rehash,'o',0,"<core>");
3291         createcommand("LUSERS",handle_lusers,0,0,"<core>");
3292         createcommand("STATS",handle_stats,0,1,"<core>");
3293         createcommand("USERHOST",handle_userhost,0,1,"<core>");
3294         createcommand("AWAY",handle_away,0,0,"<core>");
3295         createcommand("ISON",handle_ison,0,0,"<core>");
3296         createcommand("SUMMON",handle_summon,0,0,"<core>");
3297         createcommand("USERS",handle_users,0,0,"<core>");
3298         createcommand("INVITE",handle_invite,0,2,"<core>");
3299         createcommand("PASS",handle_pass,0,1,"<core>");
3300         createcommand("TRACE",handle_trace,'o',0,"<core>");
3301         createcommand("WHOWAS",handle_whowas,0,1,"<core>");
3302         createcommand("CONNECT",handle_connect,'o',1,"<core>");
3303         createcommand("SQUIT",handle_squit,'o',0,"<core>");
3304         createcommand("MODULES",handle_modules,0,0,"<core>");
3305         createcommand("LINKS",handle_links,0,0,"<core>");
3306         createcommand("MAP",handle_map,0,0,"<core>");
3307         createcommand("KLINE",handle_kline,'o',1,"<core>");
3308         createcommand("GLINE",handle_gline,'o',1,"<core>");
3309         createcommand("ZLINE",handle_zline,'o',1,"<core>");
3310         createcommand("QLINE",handle_qline,'o',1,"<core>");
3311         createcommand("ELINE",handle_eline,'o',1,"<core>");
3312         createcommand("LOADMODULE",handle_loadmodule,'o',1,"<core>");
3313         createcommand("UNLOADMODULE",handle_unloadmodule,'o',1,"<core>");
3314         createcommand("SERVER",handle_server,0,0,"<core>");
3315 }
3316
3317 void process_buffer(const char* cmdbuf,userrec *user)
3318 {
3319         if (!user)
3320         {
3321                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3322                 return;
3323         }
3324         char cmd[MAXBUF];
3325         if (!cmdbuf)
3326         {
3327                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
3328                 return;
3329         }
3330         if (!strcmp(cmdbuf,""))
3331         {
3332                 return;
3333         }
3334         while ((cmdbuf[0] == ' ') && (strlen(cmdbuf)>0)) cmdbuf++; // strip leading spaces
3335
3336         strlcpy(cmd,cmdbuf,MAXBUF);
3337         if (!strcmp(cmd,""))
3338         {
3339                 return;
3340         }
3341         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3342         {
3343                 cmd[strlen(cmd)-1] = '\0';
3344         }
3345         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
3346         {
3347                 cmd[strlen(cmd)-1] = '\0';
3348         }
3349
3350         while ((cmd[strlen(cmd)-1] == ' ') && (strlen(cmd)>0)) // strip trailing spaces
3351         {
3352                 cmd[strlen(cmd)-1] = '\0';
3353         }
3354
3355         if (!strcmp(cmd,""))
3356         {
3357                 return;
3358         }
3359         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
3360         tidystring(cmd);
3361         if ((user) && (cmd))
3362         {
3363                 process_command(user,cmd);
3364         }
3365 }
3366
3367 void DoSync(serverrec* serv, char* tcp_host)
3368 {
3369         char data[MAXBUF];
3370         log(DEBUG,"Sending sync");
3371         // send start of sync marker: Y <timestamp>
3372         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
3373         // except the ones its receiving it from.
3374         snprintf(data,MAXBUF,"Y %d",TIME);
3375         serv->SendPacket(data,tcp_host);
3376         // send users and channels
3377         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
3378         {
3379                 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);
3380                 serv->SendPacket(data,tcp_host);
3381                 if (strchr(u->second->modes,'o'))
3382                 {
3383                         snprintf(data,MAXBUF,"| %s %s",u->second->nick,u->second->oper);
3384                         serv->SendPacket(data,tcp_host);
3385                 }
3386                 for (int i = 0; i <= MODCOUNT; i++)
3387                 {
3388                         string_list l = modules[i]->OnUserSync(u->second);
3389                         for (int j = 0; j < l.size(); j++)
3390                         {
3391                                 strlcpy(data,l[j].c_str(),MAXBUF);
3392                                 serv->SendPacket(data,tcp_host);
3393                         }
3394                 }
3395                 if (strcmp(chlist(u->second),""))
3396                 {
3397                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
3398                         serv->SendPacket(data,tcp_host);
3399                 }
3400         }
3401         // send channel modes, topics etc...
3402         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
3403         {
3404                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
3405                 serv->SendPacket(data,tcp_host);
3406                 for (int i = 0; i <= MODCOUNT; i++)
3407                 {
3408                         string_list l = modules[i]->OnChannelSync(c->second);
3409                         for (int j = 0; j < l.size(); j++)
3410                         {
3411                                 strlcpy(data,l[j].c_str(),MAXBUF);
3412                                 serv->SendPacket(data,tcp_host);
3413                         }
3414                 }
3415                 if (strcmp(c->second->topic,""))
3416                 {
3417                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
3418                         serv->SendPacket(data,tcp_host);
3419                 }
3420                 // send current banlist
3421
3422                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
3423                 {
3424                         snprintf(data,MAXBUF,"M %s +b %s",c->second->name,b->data);
3425                         serv->SendPacket(data,tcp_host);
3426                 }
3427         }
3428         // sync global zlines, glines, etc
3429         sync_xlines(serv,tcp_host);
3430
3431         for (int j = 0; j < 32; j++)
3432         {
3433                 if (me[j] != NULL)
3434                 {
3435                         for (int k = 0; k < me[j]->connectors.size(); k++)
3436                         {
3437                                 if (is_uline(me[j]->connectors[k].GetServerName().c_str()))
3438                                 {
3439                                         snprintf(data,MAXBUF,"H %s",me[j]->connectors[k].GetServerName().c_str());
3440                                         serv->SendPacket(data,tcp_host);
3441                                         NetSendMyRoutingTable();
3442                                 }
3443                         }
3444                 }
3445         }
3446
3447         snprintf(data,MAXBUF,"F %d",TIME);
3448         serv->SendPacket(data,tcp_host);
3449         log(DEBUG,"Sent sync");
3450         // ircd sends its serverlist after the end of sync here
3451 }
3452
3453
3454 void NetSendMyRoutingTable()
3455 {
3456         // send out a line saying what is reachable to us.
3457         // E.g. if A is linked to B C and D, send out:
3458         // $ A B C D
3459         // if its only linked to B and D send out:
3460         // $ A B D
3461         // if it has no links, dont even send out the line at all.
3462         char buffer[MAXBUF];
3463         snprintf(buffer,MAXBUF,"$ %s",ServerName);
3464         bool sendit = false;
3465         for (int i = 0; i < 32; i++)
3466         {
3467                 if (me[i] != NULL)
3468                 {
3469                         for (int j = 0; j < me[i]->connectors.size(); j++)
3470                         {
3471                                 if ((me[i]->connectors[j].GetState() != STATE_DISCONNECTED) || (is_uline(me[i]->connectors[j].GetServerName().c_str())))
3472                                 {
3473                                         strlcat(buffer," ",MAXBUF);
3474                                         strlcat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
3475                                         sendit = true;
3476                                 }
3477                         }
3478                 }
3479         }
3480         if (sendit)
3481                 NetSendToAll(buffer);
3482 }
3483
3484
3485 void DoSplit(const char* params)
3486 {
3487         bool go_again = true;
3488         while (go_again)
3489         {
3490                 go_again = false;
3491                 for (int i = 0; i < 32; i++)
3492                 {
3493                         if (me[i] != NULL)
3494                         {
3495                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3496                                 {
3497                                         if (!strcasecmp(j->GetServerName().c_str(),params))
3498                                         {
3499                                                 j->routes.clear();
3500                                                 j->CloseConnection();
3501                                                 me[i]->connectors.erase(j);
3502                                                 go_again = true;
3503                                                 break;
3504                                         }
3505                                 }
3506                         }
3507                 }
3508         }
3509         log(DEBUG,"Removed server. Will remove clients...");
3510         // iterate through the userlist and remove all users on this server.
3511         // because we're dealing with a mesh, we dont have to deal with anything
3512         // "down-route" from this server (nice huh)
3513         go_again = true;
3514         char reason[MAXBUF];
3515         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
3516         while (go_again)
3517         {
3518                 go_again = false;
3519                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
3520                 {
3521                         if (!strcasecmp(u->second->server,params))
3522                         {
3523                                 kill_link(u->second,reason);
3524                                 go_again = true;
3525                                 break;
3526                         }
3527                 }
3528         }
3529 }
3530
3531 // removes a server. Will NOT remove its users!
3532
3533 void RemoveServer(const char* name)
3534 {
3535         bool go_again = true;
3536         while (go_again)
3537         {
3538                 go_again = false;
3539                 for (int i = 0; i < 32; i++)
3540                 {
3541                         if (me[i] != NULL)
3542                         {
3543                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
3544                                 {
3545                                         if (!strcasecmp(j->GetServerName().c_str(),name))
3546                                         {
3547                                                 j->routes.clear();
3548                                                 j->CloseConnection();
3549                                                 me[i]->connectors.erase(j);
3550                                                 go_again = true;
3551                                                 break;
3552                                         }
3553                                 }
3554                         }
3555                 }
3556         }
3557 }
3558
3559
3560 char MODERR[MAXBUF];
3561
3562 char* ModuleError()
3563 {
3564         return MODERR;
3565 }
3566
3567 void erase_factory(int j)
3568 {
3569         int v = 0;
3570         for (std::vector<ircd_module*>::iterator t = factory.begin(); t != factory.end(); t++)
3571         {
3572                 if (v == j)
3573                 {
3574                         factory.erase(t);
3575                         factory.push_back(NULL);
3576                         return;
3577                 }
3578                 v++;
3579         }
3580 }
3581
3582 void erase_module(int j)
3583 {
3584         int v1 = 0;
3585         for (std::vector<Module*>::iterator m = modules.begin(); m!= modules.end(); m++)
3586         {
3587                 if (v1 == j)
3588                 {
3589                         delete *m;
3590                         modules.erase(m);
3591                         modules.push_back(NULL);
3592                         break;
3593                 }
3594                 v1++;
3595         }
3596         int v2 = 0;
3597         for (std::vector<std::string>::iterator v = module_names.begin(); v != module_names.end(); v++)
3598         {
3599                 if (v2 == j)
3600                 {
3601                        module_names.erase(v);
3602                        break;
3603                 }
3604                 v2++;
3605         }
3606
3607 }
3608
3609 bool UnloadModule(const char* filename)
3610 {
3611         for (int j = 0; j != module_names.size(); j++)
3612         {
3613                 if (module_names[j] == std::string(filename))
3614                 {
3615                         if (modules[j]->GetVersion().Flags & VF_STATIC)
3616                         {
3617                                 log(DEFAULT,"Failed to unload STATIC module %s",filename);
3618                                 snprintf(MODERR,MAXBUF,"Module not unloadable (marked static)");
3619                                 return false;
3620                         }
3621                         // found the module
3622                         log(DEBUG,"Deleting module...");
3623                         erase_module(j);
3624                         log(DEBUG,"Erasing module entry...");
3625                         erase_factory(j);
3626                         log(DEBUG,"Removing dependent commands...");
3627                         removecommands(filename);
3628                         log(DEFAULT,"Module %s unloaded",filename);
3629                         MODCOUNT--;
3630                         return true;
3631                 }
3632         }
3633         log(DEFAULT,"Module %s is not loaded, cannot unload it!",filename);
3634         snprintf(MODERR,MAXBUF,"Module not loaded");
3635         return false;
3636 }
3637
3638 bool DirValid(char* dirandfile)
3639 {
3640         char work[MAXBUF];
3641         strlcpy(work,dirandfile,MAXBUF);
3642         int p = strlen(work);
3643         // we just want the dir
3644         while (strlen(work))
3645         {
3646                 if (work[p] == '/')
3647                 {
3648                         work[p] = '\0';
3649                         break;
3650                 }
3651                 work[p--] = '\0';
3652         }
3653         log(DEBUG,"Dir valid: %s",work);
3654         char buffer[MAXBUF], otherdir[MAXBUF];
3655         // Get the current working directory
3656         if( getcwd( buffer, MAXBUF ) == NULL )
3657                 return false;
3658         chdir(work);
3659         if( getcwd( otherdir, MAXBUF ) == NULL )
3660                 return false;
3661         chdir(buffer);
3662         log(DEBUG,"Dir is really: %s",otherdir);
3663         if (strlen(otherdir) >= strlen(work))
3664         {
3665                 otherdir[strlen(work)] = '\0';
3666                 log(DEBUG,"Compare: '%s' -> '%s'",otherdir,work);
3667                 if (!strcmp(otherdir,work))
3668                 {
3669                         log(DEBUG,"Match ok");
3670                         return true;
3671                 }
3672                 log(DEBUG,"No match");
3673                 return false;
3674         }
3675         else return false;
3676 }
3677
3678 bool LoadModule(const char* filename)
3679 {
3680         char modfile[MAXBUF];
3681         snprintf(modfile,MAXBUF,"%s/%s",ModPath,filename);
3682         if (!DirValid(modfile))
3683         {
3684                 log(DEFAULT,"Module %s is not within the modules directory.",modfile);
3685                 snprintf(MODERR,MAXBUF,"Module %s is not within the modules directory.",modfile);
3686                 return false;
3687         }
3688         log(DEBUG,"Loading module: %s",modfile);
3689         if (FileExists(modfile))
3690         {
3691                 for (int j = 0; j < module_names.size(); j++)
3692                 {
3693                         if (module_names[j] == std::string(filename))
3694                         {
3695                                 log(DEFAULT,"Module %s is already loaded, cannot load a module twice!",modfile);
3696                                 snprintf(MODERR,MAXBUF,"Module already loaded");
3697                                 return false;
3698                         }
3699                 }
3700                 ircd_module* a = new ircd_module(modfile);
3701                 factory[MODCOUNT+1] = a;
3702                 if (factory[MODCOUNT+1]->LastError())
3703                 {
3704                         log(DEFAULT,"Unable to load %s: %s",modfile,factory[MODCOUNT+1]->LastError());
3705                         snprintf(MODERR,MAXBUF,"Loader/Linker error: %s",factory[MODCOUNT+1]->LastError());
3706                         MODCOUNT--;
3707                         return false;
3708                 }
3709                 if (factory[MODCOUNT+1]->factory)
3710                 {
3711                         Module* m = factory[MODCOUNT+1]->factory->CreateModule();
3712                         modules[MODCOUNT+1] = m;
3713                         /* save the module and the module's classfactory, if
3714                          * this isnt done, random crashes can occur :/ */
3715                         module_names.push_back(filename);
3716                 }
3717                 else
3718                 {
3719                         log(DEFAULT,"Unable to load %s",modfile);
3720                         snprintf(MODERR,MAXBUF,"Factory function failed!");
3721                         return false;
3722                 }
3723         }
3724         else
3725         {
3726                 log(DEFAULT,"InspIRCd: startup: Module Not Found %s",modfile);
3727                 snprintf(MODERR,MAXBUF,"Module file could not be found");
3728                 return false;
3729         }
3730         MODCOUNT++;
3731         return true;
3732 }
3733
3734 int InspIRCd(void)
3735 {
3736         struct sockaddr_in client,server;
3737         char addrs[MAXBUF][255];
3738         int incomingSockfd, result = TRUE;
3739         socklen_t length;
3740         int count = 0;
3741         int selectResult = 0, selectResult2 = 0;
3742         char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
3743         fd_set selectFds;
3744         timeval tv;
3745
3746         log_file = fopen("ircd.log","a+");
3747         if (!log_file)
3748         {
3749                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
3750                 Exit(ERROR);
3751         }
3752
3753         log(DEBUG,"InspIRCd: startup: begin");
3754         log(DEBUG,"$Id$");
3755         if (geteuid() == 0)
3756         {
3757                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
3758                 Exit(ERROR);
3759                 log(DEFAULT,"InspIRCd: startup: not starting with UID 0!");
3760         }
3761         SetupCommandTable();
3762         log(DEBUG,"InspIRCd: startup: default command table set up");
3763
3764         ReadConfig(true,NULL);
3765         if (strcmp(DieValue,""))
3766         {
3767                 printf("WARNING: %s\n\n",DieValue);
3768                 log(DEFAULT,"Ut-Oh, somebody didn't read their config file: '%s'",DieValue);
3769                 exit(0);
3770         }
3771         log(DEBUG,"InspIRCd: startup: read config");
3772
3773         int clientportcount = 0, serverportcount = 0;
3774
3775         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
3776         {
3777                 ConfValue("bind","port",count,configToken,&config_f);
3778                 ConfValue("bind","address",count,Addr,&config_f);
3779                 ConfValue("bind","type",count,Type,&config_f);
3780                 if (!strcmp(Type,"servers"))
3781                 {
3782                         char Default[MAXBUF];
3783                         strcpy(Default,"no");
3784                         ConfValue("bind","default",count,Default,&config_f);
3785                         if (strchr(Default,'y'))
3786                         {
3787                                 defaultRoute = serverportcount;
3788                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
3789                         }
3790                         me[serverportcount] = new serverrec(ServerName,100L,false);
3791                         if (!me[serverportcount]->CreateListener(Addr,atoi(configToken)))
3792                         {
3793                                 log(DEFAULT,"Warning: Failed to bind port %d",atoi(configToken));
3794                                 printf("Warning: Failed to bind port %d\n",atoi(configToken));
3795                         }
3796                         else
3797                         {
3798                                 serverportcount++;
3799                         }
3800                 }
3801                 else
3802                 {
3803                         ports[clientportcount] = atoi(configToken);
3804                         strlcpy(addrs[clientportcount],Addr,256);
3805                         clientportcount++;
3806                 }
3807                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
3808         }
3809         portCount = clientportcount;
3810         UDPportCount = serverportcount;
3811
3812         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
3813         log(DEBUG,"InspIRCd: startup: InspIRCd is now starting!");
3814
3815         printf("\n");
3816
3817         /* BugFix By Craig! :p */
3818         MODCOUNT = -1;
3819         for (count = 0; count < ConfValueEnum("module",&config_f); count++)
3820         {
3821                 ConfValue("module","name",count,configToken,&config_f);
3822                 printf("Loading module... \033[1;37m%s\033[0;37m\n",configToken);
3823                 if (!LoadModule(configToken))
3824                 {
3825                         log(DEBUG,"Exiting due to a module loader error.");
3826                         printf("\nThere was an error loading a module: %s\n\nYou might want to do './inspircd start' instead of 'bin/inspircd'\n\n",ModuleError());
3827                         Exit(0);
3828                 }
3829         }
3830         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
3831
3832         startup_time = time(NULL);
3833
3834         char PID[MAXBUF];
3835         ConfValue("pid","file",0,PID,&config_f);
3836         // write once here, to try it out and make sure its ok
3837         WritePID(PID);
3838
3839         /* setup select call */
3840         FD_ZERO(&selectFds);
3841         log(DEBUG,"InspIRCd: startup: zero selects");
3842         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
3843
3844         for (count = 0; count < portCount; count++)
3845         {
3846                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
3847                 {
3848                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
3849                         return(ERROR);
3850                 }
3851                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
3852                 {
3853                         log(DEFAULT,"InspIRCd: startup: failed to bind port %d",ports[count]);
3854                 }
3855                 else    /* well we at least bound to one socket so we'll continue */
3856                 {
3857                         boundPortCount++;
3858                 }
3859         }
3860
3861         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
3862
3863         /* if we didn't bind to anything then abort */
3864         if (boundPortCount == 0)
3865         {
3866                 log(DEFAULT,"InspIRCd: startup: no ports bound, bailing!");
3867                 printf("\nERROR: Was not able to bind any of %d ports! Please check your configuration.\n\n", portCount);
3868                 return (ERROR);
3869         }
3870
3871
3872         printf("\nInspIRCd is now running!\n");
3873
3874         if (nofork)
3875         {
3876                 log(VERBOSE,"Not forking as -nofork was specified");
3877         }
3878         else
3879         {
3880                 if (DaemonSeed() == ERROR)
3881                 {
3882                         log(DEFAULT,"InspIRCd: startup: can't daemonise");
3883                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
3884                         Exit(ERROR);
3885                 }
3886         }
3887
3888         WritePID(PID);
3889
3890         length = sizeof (client);
3891         char udp_msg[MAXBUF],tcp_host[MAXBUF];
3892
3893         fd_set serverfds;
3894         timeval tvs;
3895         tvs.tv_usec = 7000L;
3896         tvs.tv_sec = 0;
3897         tv.tv_sec = 0;
3898         tv.tv_usec = 7000L;
3899         char data[10240];
3900         timeval tval;
3901         fd_set sfd;
3902         tval.tv_usec = 7000L;
3903         tval.tv_sec = 0;
3904         int total_in_this_set = 0;
3905         int v = 0;
3906         bool expire_run = false;
3907
3908         /* main loop, this never returns */
3909         for (;;)
3910         {
3911 #ifdef _POSIX_PRIORITY_SCHEDULING
3912                 sched_yield();
3913 #endif
3914                 // poll dns queue
3915                 dns_poll();
3916                 FD_ZERO(&sfd);
3917
3918                 // we only read time() once per iteration rather than tons of times!
3919                 TIME = time(NULL);
3920
3921                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
3922                 // them in a list, then reap the list every second or so.
3923                 if (((TIME % 5) == 0) && (!expire_run))
3924                 {
3925                         expire_lines();
3926                         FOREACH_MOD OnBackgroundTimer(TIME);
3927                         expire_run = true;
3928                         continue;
3929                 }
3930                 if ((TIME % 5) == 1)
3931                         expire_run = false;
3932
3933                 // fix by brain - this must be below any manipulation of the hashmap by modules
3934                 user_hash::iterator count2 = clientlist.begin();
3935
3936                 FD_ZERO(&serverfds);
3937
3938                 for (int x = 0; x != UDPportCount; x++)
3939                 {
3940                         if (me[x])
3941                                 FD_SET(me[x]->fd, &serverfds);
3942                 }
3943
3944                 // serverFds timevals went here
3945
3946                 tvs.tv_usec = 7000L;
3947                 tvs.tv_sec = 0;
3948                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
3949                 if (servresult > 0)
3950                 {
3951                         for (int x = 0; x != UDPportCount; x++)
3952                         {
3953                                 if ((me[x]) && (FD_ISSET (me[x]->fd, &serverfds)))
3954                                 {
3955                                         char remotehost[MAXBUF],resolved[MAXBUF];
3956                                         length = sizeof (client);
3957                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
3958                                         if (incomingSockfd != -1)
3959                                         {
3960                                                 strlcpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
3961                                                 if(CleanAndResolve(resolved, remotehost) != TRUE)
3962                                                 {
3963                                                         strlcpy(resolved,remotehost,MAXBUF);
3964                                                 }
3965                                                 // add to this connections ircd_connector vector
3966                                                 // *FIX* - we need the LOCAL port not the remote port in &client!
3967                                                 me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
3968                                         }
3969                                 }
3970                         }
3971                 }
3972
3973                 for (int cycle = 0; cycle < 4; cycle++) for (int x = 0; x < UDPportCount; x++)
3974                 {
3975                         std::deque<std::string> msgs;
3976                         msgs.clear();
3977                         if ((me[x]) && (me[x]->RecvPacket(msgs, tcp_host)))
3978                         {
3979                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
3980                                 {
3981                                         strlcpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
3982                                         log(DEBUG,"Processing: %s",udp_msg);
3983                                         if (strlen(udp_msg)<1)
3984                                         {
3985                                                 log(DEBUG,"Invalid string from %s [route%d]",tcp_host,x);
3986                                                 break;
3987                                         }
3988                                         // during a netburst, send all data to all other linked servers
3989                                         if ((((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))) || (is_uline(tcp_host)))
3990                                         {
3991                                                 if (is_uline(tcp_host))
3992                                                 {
3993                                                         if ((udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
3994                                                         {
3995                                                                 NetSendToAllExcept(tcp_host,udp_msg);
3996                                                         }
3997                                                 }
3998                                                 else
3999                                                         NetSendToAllExcept(tcp_host,udp_msg);
4000                                         }
4001                                         std::string msg = udp_msg;
4002                                         FOREACH_MOD OnPacketReceive(msg,tcp_host);
4003                                         strlcpy(udp_msg,msg.c_str(),MAXBUF);
4004                                         handle_link_packet(udp_msg, tcp_host, me[x]);
4005                                 }
4006                                 goto label;
4007                         }
4008                 }
4009
4010
4011         while (count2 != clientlist.end())
4012         {
4013                 FD_ZERO(&sfd);
4014                 total_in_this_set = 0;
4015
4016                 user_hash::iterator xcount = count2;
4017                 user_hash::iterator endingiter = count2;
4018
4019                 if (count2 == clientlist.end()) break;
4020
4021                 if (count2->second)
4022                 if (count2->second->fd != 0)
4023                 {
4024                         // assemble up to 64 sockets into an fd_set
4025                         // to implement a pooling mechanism.
4026                         //
4027                         // This should be up to 64x faster than the
4028                         // old implementation.
4029                         while (total_in_this_set < 64)
4030                         {
4031                                 if (count2 != clientlist.end())
4032                                 {
4033                                         // we don't check the state of remote users.
4034                                         if ((count2->second->fd != -1) && (count2->second->fd != FD_MAGIC_NUMBER))
4035                                         {
4036                                                 FD_SET (count2->second->fd, &sfd);
4037
4038                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
4039                                                 // their connection class.
4040                                                 if ((TIME > count2->second->timeout) && (count2->second->registered != 7))
4041                                                 {
4042                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
4043                                                         kill_link(count2->second,"Registration timeout");
4044                                                         goto label;
4045                                                 }
4046                                                 if ((TIME > count2->second->signon) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second)))
4047                                                 {
4048                                                         log(DEBUG,"signon exceed, registered=3, and modules ready, OK");
4049                                                         count2->second->dns_done = true;
4050                                                         FullConnectUser(count2->second);
4051                                                         goto label;
4052                                                 }
4053                                                 if ((count2->second->dns_done) && (count2->second->registered == 3) && (AllModulesReportReady(count2->second))) // both NICK and USER... and DNS
4054                                                 {
4055                                                         log(DEBUG,"dns done, registered=3, and modules ready, OK");
4056                                                         FullConnectUser(count2->second);
4057                                                         goto label;
4058                                                 }
4059                                                 if ((TIME > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
4060                                                 {
4061                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
4062                                                         {
4063                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
4064                                                                 kill_link(count2->second,"Ping timeout");
4065                                                                 goto label;
4066                                                         }
4067                                                         Write(count2->second->fd,"PING :%s",ServerName);
4068                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
4069                                                         count2->second->lastping = 0;
4070                                                         count2->second->nping = TIME+count2->second->pingmax;   // was hard coded to 120
4071                                                 }
4072                                         }
4073                                         count2++;
4074                                         total_in_this_set++;
4075                                 }
4076                                 else break;
4077                         }
4078
4079                         endingiter = count2;
4080                         count2 = xcount; // roll back to where we were
4081
4082                         v = 0;
4083
4084                         // tvals defined here
4085
4086                         tval.tv_usec = 7000L;
4087                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
4088
4089                         // now loop through all of the items in this pool if any are waiting
4090                         //if (selectResult2 > 0)
4091                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
4092                         {
4093
4094 #ifdef _POSIX_PRIORITY_SCHEDULING
4095                                 sched_yield();
4096 #endif
4097
4098                                 result = EAGAIN;
4099                                 if ((count2a->second->fd != FD_MAGIC_NUMBER) && (count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
4100                                 {
4101                                         memset(data, 0, 10240);
4102                                         result = read(count2a->second->fd, data, 10240);
4103
4104                                         if (result)
4105                                         {
4106                                                 // perform a check on the raw buffer as an array (not a string!) to remove
4107                                                 // characters 0 and 7 which are illegal in the RFC - replace them with spaces.
4108                                                 // hopefully this should stop even more people whining about "Unknown command: *"
4109                                                 for (int checker = 0; checker < result; checker++)
4110                                                 {
4111                                                         if ((data[checker] == 0) || (data[checker] == 7))
4112                                                                 data[checker] = ' ';
4113                                                 }
4114                                                 userrec* current = count2a->second;
4115                                                 int currfd = current->fd;
4116                                                 char* l = strtok(data,"\n");
4117                                                 int floodlines = 0;
4118                                                 while (l)
4119                                                 {
4120                                                         floodlines++;
4121                                                         if ((floodlines > current->flood) && (current->flood != 0))
4122                                                         {
4123                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4124                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
4125                                                                 kill_link(current,"Excess flood");
4126                                                                 goto label;
4127                                                         }
4128                                                         char sanitized[NetBufferSize];
4129                                                         memset(sanitized, 0, NetBufferSize);
4130                                                         int ptt = 0;
4131                                                         for (int pt = 0; pt < strlen(l); pt++)
4132                                                         {
4133                                                                 if (l[pt] != '\r')
4134                                                                 {
4135                                                                         sanitized[ptt++] = l[pt];
4136                                                                 }
4137                                                         }
4138                                                         sanitized[ptt] = '\0';
4139                                                         if (strlen(sanitized))
4140                                                         {
4141
4142
4143                                                                 // we're gonna re-scan to check if the nick is gone, after every
4144                                                                 // command - if it has, we're gonna bail
4145                                                                 bool find_again = false;
4146                                                                 process_buffer(sanitized,current);
4147
4148                                                                 // look for the user's record in case it's changed
4149                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
4150                                                                 {
4151                                                                         if (c2->second->fd == currfd)
4152                                                                         {
4153                                                                                 // found again, update pointer
4154                                                                                 current == c2->second;
4155                                                                                 find_again = true;
4156                                                                                 break;
4157                                                                         }
4158                                                                 }
4159                                                                 if (!find_again)
4160                                                                         goto label;
4161
4162                                                         }
4163                                                         l = strtok(NULL,"\n");
4164                                                 }
4165                                                 goto label;
4166                                         }
4167
4168                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
4169                                         {
4170                                                 log(DEBUG,"killing: %s",count2a->second->nick);
4171                                                 kill_link(count2a->second,strerror(errno));
4172                                                 goto label;
4173                                         }
4174                                 }
4175                                 // result EAGAIN means nothing read
4176                                 if (result == EAGAIN)
4177                                 {
4178                                 }
4179                                 else
4180                                 if (result == 0)
4181                                 {
4182                                         if (count2->second)
4183                                         {
4184                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
4185                                                 kill_link(count2a->second,"Client exited");
4186                                                 // must bail here? kill_link removes the hash, corrupting the iterator
4187                                                 log(DEBUG,"Bailing from client exit");
4188                                                 goto label;
4189                                         }
4190                                 }
4191                                 else if (result > 0)
4192                                 {
4193                                 }
4194                         }
4195                 }
4196                 for (int q = 0; q < total_in_this_set; q++)
4197                 {
4198                         // there is no iterator += operator :(
4199                         //if (count2 != clientlist.end())
4200                         //{
4201                                 count2++;
4202                         //}
4203                 }
4204         }
4205
4206         // set up select call
4207         for (count = 0; count < boundPortCount; count++)
4208         {
4209                 FD_SET (openSockfd[count], &selectFds);
4210         }
4211
4212         tv.tv_usec = 7000L;
4213         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
4214
4215         /* select is reporting a waiting socket. Poll them all to find out which */
4216         if (selectResult > 0)
4217         {
4218                 char target[MAXBUF], resolved[MAXBUF];
4219                 for (count = 0; count < boundPortCount; count++)
4220                 {
4221                         if (FD_ISSET (openSockfd[count], &selectFds))
4222                         {
4223                                 length = sizeof (client);
4224                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
4225
4226                                 strlcpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
4227                                 strlcpy (resolved, target, MAXBUF);
4228
4229                                 if (incomingSockfd < 0)
4230                                 {
4231                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
4232                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
4233                                 }
4234                                 else
4235                                 {
4236                                         AddClient(incomingSockfd, resolved, ports[count], false, inet_ntoa (client.sin_addr));
4237                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
4238                                 }
4239                                 goto label;
4240                         }
4241                 }
4242         }
4243         label:
4244         if (0) {};
4245 }
4246 /* not reached */
4247 close (incomingSockfd);
4248 }
4249