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 "connection.h"
  45 #include "users.h"
  46 #include "servers.h"
  47 #include "ctables.h"
  48 #include "globals.h"
  49 #include "modules.h"
  50 #include "dynamic.h"
  51 #include "wildcard.h"
  52
  53 #ifdef GCC3
  54 #define nspace __gnu_cxx
  55 #else
  56 #define nspace std
  57 #endif
  58
  59 int LogLevel = DEFAULT;
  60 char ServerName[MAXBUF];
  61 char Network[MAXBUF];
  62 char ServerDesc[MAXBUF];
  63 char AdminName[MAXBUF];
  64 char AdminEmail[MAXBUF];
  65 char AdminNick[MAXBUF];
  66 char diepass[MAXBUF];
  67 char restartpass[MAXBUF];
  68 char motd[MAXBUF];
  69 char rules[MAXBUF];
  70 char list[MAXBUF];
  71 char PrefixQuit[MAXBUF];
  72 char DieValue[MAXBUF];
  73 int debugging =  0;
  74 int WHOWAS_STALE = 48; // default WHOWAS Entries last 2 days before they go 'stale'
  75 int WHOWAS_MAX = 100;  // default 100 people maximum in the WHOWAS list
  76 int DieDelay  =  5;
  77 time_t startup_time = time(NULL);
  78 int NetBufferSize = 10240; // NetBufferSize used as the buffer size for all read() ops
  79 time_t nb_start = 0;
  80
  81 extern vector<Module*> modules;
  82 std::vector<std::string> module_names;
  83 extern vector<ircd_module*> factory;
  84 std::vector<int> fd_reap;
  85
  86 extern int MODCOUNT;
  87
  88 bool nofork = false;
  89
  90 namespace nspace
  91 {
  92         template<> struct nspace::hash<in_addr>
  93         {
  94                 size_t operator()(const struct in_addr &a) const
  95                 {
  96                         size_t q;
  97                         memcpy(&q,&a,sizeof(size_t));
  98                         return q;
  99                 }
 100         };
 101
 102         template<> struct nspace::hash<string>
 103         {
 104                 size_t operator()(const string &s) const
 105                 {
 106                         char a[MAXBUF];
 107                         static struct hash<const char *> strhash;
 108                         strcpy(a,s.c_str());
 109                         strlower(a);
 110                         return strhash(a);
 111                 }
 112         };
 113 }
 114
 115
 116 struct StrHashComp
 117 {
 118
 119         bool operator()(const string& s1, const string& s2) const
 120         {
 121                 char a[MAXBUF],b[MAXBUF];
 122                 strcpy(a,s1.c_str());
 123                 strcpy(b,s2.c_str());
 124                 return (strcasecmp(a,b) == 0);
 125         }
 126
 127 };
 128
 129 struct InAddr_HashComp
 130 {
 131
 132         bool operator()(const in_addr &s1, const in_addr &s2) const
 133         {
 134                 size_t q;
 135                 size_t p;
 136
 137                 memcpy(&q,&s1,sizeof(size_t));
 138                 memcpy(&p,&s2,sizeof(size_t));
 139
 140                 return (q == p);
 141         }
 142
 143 };
 144
 145
 146 typedef nspace::hash_map<std::string, userrec*, nspace::hash<string>, StrHashComp> user_hash;
 147 typedef nspace::hash_map<std::string, chanrec*, nspace::hash<string>, StrHashComp> chan_hash;
 148 typedef nspace::hash_map<in_addr,string*, nspace::hash<in_addr>, InAddr_HashComp> address_cache;
 149 typedef std::deque<command_t> command_table;
 150
 151 serverrec* me[32];
 152
 153 FILE *log_file;
 154
 155 user_hash clientlist;
 156 chan_hash chanlist;
 157 user_hash whowas;
 158 command_table cmdlist;
 159 file_cache MOTD;
 160 file_cache RULES;
 161 address_cache IP;
 162
 163 ClassVector Classes;
 164
 165 struct linger linger = { 0 };
 166 char bannerBuffer[MAXBUF];
 167 int boundPortCount = 0;
 168 int portCount = 0, UDPportCount = 0, ports[MAXSOCKS];
 169 int defaultRoute = 0;
 170
 171 connection C;
 172
 173 long MyKey = C.GenKey();
 174
 175 /* prototypes */
 176
 177 int has_channel(userrec *u, chanrec *c);
 178 int usercount(chanrec *c);
 179 int usercount_i(chanrec *c);
 180 void update_stats_l(int fd,int data_out);
 181 char* Passwd(userrec *user);
 182 bool IsDenied(userrec *user);
 183 void AddWhoWas(userrec* u);
 184
 185 std::vector<long> auth_cookies;
 186 std::stringstream config_f(stringstream::in | stringstream::out);
 187
 188 void safedelete(userrec *p)
 189 {
 190         if (p)
 191         {
 192                 log(DEBUG,"deleting %s %s %s %s",p->nick,p->ident,p->dhost,p->fullname);
 193                 log(DEBUG,"safedelete(userrec*): pointer is safe to delete");
 194                 delete p;
 195                 p = NULL;
 196         }
 197         else
 198         {
 199                 log(DEBUG,"safedelete(userrec*): unsafe pointer operation squished");
 200         }
 201 }
 202
 203 void safedelete(chanrec *p)
 204 {
 205         if (p)
 206         {
 207                 delete p;
 208                 p = NULL;
 209                 log(DEBUG,"safedelete(chanrec*): pointer is safe to delete");
 210         }
 211         else
 212         {
 213                 log(DEBUG,"safedelete(chanrec*): unsafe pointer operation squished");
 214         }
 215 }
 216
 217
 218 void tidystring(char* str)
 219 {
 220         // strips out double spaces before a : parameter
 221
 222         char temp[MAXBUF];
 223         bool go_again = true;
 224
 225         if (!str)
 226         {
 227                 return;
 228         }
 229
 230         while ((str[0] == ' ') && (strlen(str)>0))
 231         {
 232                 str++;
 233         }
 234
 235         while (go_again)
 236         {
 237                 bool noparse = false;
 238                 int t = 0, a = 0;
 239                 go_again = false;
 240                 while (a < strlen(str))
 241                 {
 242                         if ((a<strlen(str)-1) && (noparse==false))
 243                         {
 244                                 if ((str[a] == ' ') && (str[a+1] == ' '))
 245                                 {
 246                                         log(DEBUG,"Tidied extra space out of string: %s",str);
 247                                         go_again = true;
 248                                         a++;
 249                                 }
 250                         }
 251
 252                         if (a<strlen(str)-1)
 253                         {
 254                                 if ((str[a] == ' ') && (str[a+1] == ':'))
 255                                 {
 256                                         noparse = true;
 257                                 }
 258                         }
 259
 260                         temp[t++] = str[a++];
 261                 }
 262                 temp[t] = '\0';
 263                 strncpy(str,temp,MAXBUF);
 264         }
 265 }
 266
 267 /* chop a string down to 512 characters and preserve linefeed (irc max
 268  * line length) */
 269
 270 void chop(char* str)
 271 {
 272   if (!str)
 273   {
 274         log(DEBUG,"ERROR! Null string passed to chop()!");
 275         return;
 276   }
 277   string temp = str;
 278   FOREACH_MOD OnServerRaw(temp,false);
 279   const char* str2 = temp.c_str();
 280   sprintf(str,"%s",str2);
 281
 282
 283   if (strlen(str) >= 512)
 284   {
 285         str[509] = '\r';
 286         str[510] = '\n';
 287         str[511] = '\0';
 288   }
 289 }
 290
 291
 292 std::string getservername()
 293 {
 294         return ServerName;
 295 }
 296
 297 std::string getserverdesc()
 298 {
 299         return ServerDesc;
 300 }
 301
 302 std::string getnetworkname()
 303 {
 304         return Network;
 305 }
 306
 307 std::string getadminname()
 308 {
 309         return AdminName;
 310 }
 311
 312 std::string getadminemail()
 313 {
 314         return AdminEmail;
 315 }
 316
 317 std::string getadminnick()
 318 {
 319         return AdminNick;
 320 }
 321
 322 void log(int level,char *text, ...)
 323 {
 324         char textbuffer[MAXBUF];
 325         va_list argsPtr;
 326         time_t rawtime;
 327         struct tm * timeinfo;
 328         if (level < LogLevel)
 329                 return;
 330
 331         time(&rawtime);
 332         timeinfo = localtime (&rawtime);
 333
 334         if (log_file)
 335         {
 336                 char b[MAXBUF];
 337                 va_start (argsPtr, text);
 338                 vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 339                 va_end(argsPtr);
 340                 strcpy(b,asctime(timeinfo));
 341                 b[strlen(b)-1] = ':';
 342                 fprintf(log_file,"%s %s\n",b,textbuffer);
 343                 if (nofork)
 344                 {
 345                         // nofork enabled? display it on terminal too
 346                         printf("%s %s\n",b,textbuffer);
 347                 }
 348         }
 349 }
 350
 351 void readfile(file_cache &F, const char* fname)
 352 {
 353   FILE* file;
 354   char linebuf[MAXBUF];
 355
 356   log(DEBUG,"readfile: loading %s",fname);
 357   F.clear();
 358   file =  fopen(fname,"r");
 359   if (file)
 360   {
 361         while (!feof(file))
 362         {
 363                 fgets(linebuf,sizeof(linebuf),file);
 364                 linebuf[strlen(linebuf)-1]='\0';
 365                 if (!strcmp(linebuf,""))
 366                 {
 367                         strcpy(linebuf,"  ");
 368                 }
 369                 if (!feof(file))
 370                 {
 371                         F.push_back(linebuf);
 372                 }
 373         }
 374         fclose(file);
 375   }
 376   else
 377   {
 378           log(DEBUG,"readfile: failed to load file: %s",fname);
 379   }
 380   log(DEBUG,"readfile: loaded %s, %d lines",fname,F.size());
 381 }
 382
 383 void ReadConfig(void)
 384 {
 385   char dbg[MAXBUF],pauseval[MAXBUF],Value[MAXBUF],timeout[MAXBUF],NB[MAXBUF],flood[MAXBUF];
 386   ConnectClass c;
 387
 388   LoadConf(CONFIG_FILE,&config_f);
 389
 390   ConfValue("server","name",0,ServerName,&config_f);
 391   ConfValue("server","description",0,ServerDesc,&config_f);
 392   ConfValue("server","network",0,Network,&config_f);
 393   ConfValue("admin","name",0,AdminName,&config_f);
 394   ConfValue("admin","email",0,AdminEmail,&config_f);
 395   ConfValue("admin","nick",0,AdminNick,&config_f);
 396   ConfValue("files","motd",0,motd,&config_f);
 397   ConfValue("files","rules",0,rules,&config_f);
 398   ConfValue("power","diepass",0,diepass,&config_f);
 399   ConfValue("power","pause",0,pauseval,&config_f);
 400   ConfValue("power","restartpass",0,restartpass,&config_f);
 401   ConfValue("options","prefixquit",0,PrefixQuit,&config_f);
 402   ConfValue("die","value",0,DieValue,&config_f);
 403   ConfValue("options","loglevel",0,dbg,&config_f);
 404   ConfValue("options","netbuffersize",0,NB,&config_f);
 405   NetBufferSize = atoi(NB);
 406   if ((!NetBufferSize) || (NetBufferSize > 65535) || (NetBufferSize < 1024))
 407   {
 408         log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 409         NetBufferSize = 10240;
 410   }
 411   if (!strcmp(dbg,"debug"))
 412         LogLevel = DEBUG;
 413   if (!strcmp(dbg,"verbose"))
 414         LogLevel = VERBOSE;
 415   if (!strcmp(dbg,"default"))
 416         LogLevel = DEFAULT;
 417   if (!strcmp(dbg,"sparse"))
 418         LogLevel = SPARSE;
 419   if (!strcmp(dbg,"none"))
 420         LogLevel = NONE;
 421   readfile(MOTD,motd);
 422   log(DEBUG,"Reading message of the day");
 423   readfile(RULES,rules);
 424   log(DEBUG,"Reading connect classes");
 425   Classes.clear();
 426   for (int i = 0; i < ConfValueEnum("connect",&config_f); i++)
 427   {
 428         strcpy(Value,"");
 429         ConfValue("connect","allow",i,Value,&config_f);
 430         ConfValue("connect","timeout",i,timeout,&config_f);
 431         ConfValue("connect","flood",i,flood,&config_f);
 432         if (strcmp(Value,""))
 433         {
 434                 strcpy(c.host,Value);
 435                 c.type = CC_ALLOW;
 436                 strcpy(Value,"");
 437                 ConfValue("connect","password",i,Value,&config_f);
 438                 strcpy(c.pass,Value);
 439                 c.registration_timeout = 90; // default is 2 minutes
 440                 c.flood = atoi(flood);
 441                 if (atoi(timeout)>0)
 442                 {
 443                         c.registration_timeout = atoi(timeout);
 444                 }
 445                 Classes.push_back(c);
 446                 log(DEBUG,"Read connect class type ALLOW, host=%s password=%s timeout=%d flood=%d",c.host,c.pass,c.registration_timeout,c.flood);
 447         }
 448         else
 449         {
 450                 ConfValue("connect","deny",i,Value,&config_f);
 451                 strcpy(c.host,Value);
 452                 c.type = CC_DENY;
 453                 Classes.push_back(c);
 454                 log(DEBUG,"Read connect class type DENY, host=%s",c.host);
 455         }
 456
 457   }
 458 }
 459
 460 void Blocking(int s)
 461 {
 462   int flags;
 463   log(DEBUG,"Blocking: %d",s);
 464   flags = fcntl(s, F_GETFL, 0);
 465   fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
 466 }
 467
 468 void NonBlocking(int s)
 469 {
 470   int flags;
 471   log(DEBUG,"NonBlocking: %d",s);
 472   flags = fcntl(s, F_GETFL, 0);
 473   //fcntl(s, F_SETFL, O_NONBLOCK);
 474   fcntl(s, F_SETFL, flags | O_NONBLOCK);
 475 }
 476
 477
 478 int CleanAndResolve (char *resolvedHost, const char *unresolvedHost)
 479 {
 480   struct hostent *hostPtr = NULL;
 481   struct in_addr addr;
 482
 483   memset (resolvedHost, '\0',MAXBUF);
 484   if(unresolvedHost == NULL)
 485         return(ERROR);
 486   if ((inet_aton(unresolvedHost,&addr)) == 0)
 487         return(ERROR);
 488   hostPtr = gethostbyaddr ((char *)&addr.s_addr,sizeof(addr.s_addr),AF_INET);
 489   if (hostPtr != NULL)
 490         snprintf(resolvedHost,MAXBUF,"%s",hostPtr->h_name);
 491   else
 492         snprintf(resolvedHost,MAXBUF,"%s",unresolvedHost);
 493   return (TRUE);
 494 }
 495
 496 /* write formatted text to a socket, in same format as printf */
 497
 498 void Write(int sock,char *text, ...)
 499 {
 500   if (!text)
 501   {
 502         log(DEFAULT,"*** BUG *** Write was given an invalid parameter");
 503         return;
 504   }
 505   char textbuffer[MAXBUF];
 506   va_list argsPtr;
 507   char tb[MAXBUF];
 508
 509   va_start (argsPtr, text);
 510   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 511   va_end(argsPtr);
 512   sprintf(tb,"%s\r\n",textbuffer);
 513   chop(tb);
 514   if (sock != -1)
 515   {
 516         write(sock,tb,strlen(tb));
 517         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 518   }
 519 }
 520
 521 /* write a server formatted numeric response to a single socket */
 522
 523 void WriteServ(int sock, char* text, ...)
 524 {
 525   if (!text)
 526   {
 527         log(DEFAULT,"*** BUG *** WriteServ was given an invalid parameter");
 528         return;
 529   }
 530   char textbuffer[MAXBUF],tb[MAXBUF];
 531   va_list argsPtr;
 532   va_start (argsPtr, text);
 533
 534   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 535   va_end(argsPtr);
 536   sprintf(tb,":%s %s\r\n",ServerName,textbuffer);
 537   chop(tb);
 538   if (sock != -1)
 539   {
 540         write(sock,tb,strlen(tb));
 541         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 542   }
 543 }
 544
 545 /* write text from an originating user to originating user */
 546
 547 void WriteFrom(int sock, userrec *user,char* text, ...)
 548 {
 549   if ((!text) || (!user))
 550   {
 551         log(DEFAULT,"*** BUG *** WriteFrom was given an invalid parameter");
 552         return;
 553   }
 554   char textbuffer[MAXBUF],tb[MAXBUF];
 555   va_list argsPtr;
 556   va_start (argsPtr, text);
 557
 558   vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 559   va_end(argsPtr);
 560   sprintf(tb,":%s!%s@%s %s\r\n",user->nick,user->ident,user->dhost,textbuffer);
 561   chop(tb);
 562   if (sock != -1)
 563   {
 564         write(sock,tb,strlen(tb));
 565         update_stats_l(sock,strlen(tb)); /* add one line-out to stats L for this fd */
 566   }
 567 }
 568
 569 /* write text to an destination user from a source user (e.g. user privmsg) */
 570
 571 void WriteTo(userrec *source, userrec *dest,char *data, ...)
 572 {
 573         if ((!dest) || (!data))
 574         {
 575                 log(DEFAULT,"*** BUG *** WriteTo was given an invalid parameter");
 576                 return;
 577         }
 578         char textbuffer[MAXBUF],tb[MAXBUF];
 579         va_list argsPtr;
 580         va_start (argsPtr, data);
 581         vsnprintf(textbuffer, MAXBUF, data, argsPtr);
 582         va_end(argsPtr);
 583         chop(tb);
 584
 585         // if no source given send it from the server.
 586         if (!source)
 587         {
 588                 WriteServ(dest->fd,":%s %s",ServerName,textbuffer);
 589         }
 590         else
 591         {
 592                 WriteFrom(dest->fd,source,"%s",textbuffer);
 593         }
 594 }
 595
 596 /* write formatted text from a source user to all users on a channel
 597  * including the sender (NOT for privmsg, notice etc!) */
 598
 599 void WriteChannel(chanrec* Ptr, userrec* user, char* text, ...)
 600 {
 601         if ((!Ptr) || (!user) || (!text))
 602         {
 603                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 604                 return;
 605         }
 606         char textbuffer[MAXBUF];
 607         va_list argsPtr;
 608         va_start (argsPtr, text);
 609         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 610         va_end(argsPtr);
 611         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 612         {
 613                 if (has_channel(i->second,Ptr))
 614                 {
 615                         WriteTo(user,i->second,"%s",textbuffer);
 616                 }
 617         }
 618 }
 619
 620 /* write formatted text from a source user to all users on a channel
 621  * including the sender (NOT for privmsg, notice etc!) doesnt send to
 622  * users on remote servers */
 623
 624 void WriteChannelLocal(chanrec* Ptr, userrec* user, char* text, ...)
 625 {
 626         if ((!Ptr) || (!text))
 627         {
 628                 log(DEFAULT,"*** BUG *** WriteChannel was given an invalid parameter");
 629                 return;
 630         }
 631         char textbuffer[MAXBUF];
 632         va_list argsPtr;
 633         va_start (argsPtr, text);
 634         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 635         va_end(argsPtr);
 636         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 637         {
 638                 if (has_channel(i->second,Ptr))
 639                 {
 640                         if (i->second->fd != -1)
 641                         {
 642                                 if (!user)
 643                                 {
 644                                         WriteServ(i->second->fd,"%s",textbuffer);
 645                                 }
 646                                 else
 647                                 {
 648                                         WriteTo(user,i->second,"%s",textbuffer);
 649                                 }
 650                         }
 651                 }
 652         }
 653 }
 654
 655
 656 void WriteChannelWithServ(char* ServerName, chanrec* Ptr, userrec* user, char* text, ...)
 657 {
 658         if ((!Ptr) || (!user) || (!text))
 659         {
 660                 log(DEFAULT,"*** BUG *** WriteChannelWithServ was given an invalid parameter");
 661                 return;
 662         }
 663         char textbuffer[MAXBUF];
 664         va_list argsPtr;
 665         va_start (argsPtr, text);
 666         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 667         va_end(argsPtr);
 668         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 669         {
 670                 if (i->second)
 671                 {
 672                         if (has_channel(i->second,Ptr))
 673                         {
 674                                 WriteServ(i->second->fd,"%s",textbuffer);
 675                         }
 676                 }
 677         }
 678 }
 679
 680
 681 /* write formatted text from a source user to all users on a channel except
 682  * for the sender (for privmsg etc) */
 683
 684 void ChanExceptSender(chanrec* Ptr, userrec* user, char* text, ...)
 685 {
 686         if ((!Ptr) || (!user) || (!text))
 687         {
 688                 log(DEFAULT,"*** BUG *** ChanExceptSender was given an invalid parameter");
 689                 return;
 690         }
 691         char textbuffer[MAXBUF];
 692         va_list argsPtr;
 693         va_start (argsPtr, text);
 694         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 695         va_end(argsPtr);
 696
 697         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 698         {
 699                 if (i->second)
 700                 {
 701                         if (has_channel(i->second,Ptr) && (user != i->second))
 702                         {
 703                                 WriteTo(user,i->second,"%s",textbuffer);
 704                         }
 705                 }
 706         }
 707 }
 708
 709 int c_count(userrec* u)
 710 {
 711         int z = 0;
 712         for (int i =0; i != MAXCHANS; i++)
 713                 if (u->chans[i].channel != NULL)
 714                         z++;
 715         return z;
 716
 717 }
 718
 719 /* return 0 or 1 depending if users u and u2 share one or more common channels
 720  * (used by QUIT, NICK etc which arent channel specific notices) */
 721
 722 int common_channels(userrec *u, userrec *u2)
 723 {
 724         int i = 0;
 725         int z = 0;
 726
 727         if ((!u) || (!u2))
 728         {
 729                 log(DEFAULT,"*** BUG *** common_channels was given an invalid parameter");
 730                 return 0;
 731         }
 732         for (int i = 0; i != MAXCHANS; i++)
 733         {
 734                 for (z = 0; z != MAXCHANS; z++)
 735                 {
 736                         if ((u->chans[i].channel != NULL) && (u2->chans[z].channel != NULL))
 737                         {
 738                                 if ((u->chans[i].channel == u2->chans[z].channel) && (u->chans[i].channel) && (u2->chans[z].channel) && (u->registered == 7) && (u2->registered == 7))
 739                                 {
 740                                         if ((c_count(u)) && (c_count(u2)))
 741                                         {
 742                                                 return 1;
 743                                         }
 744                                 }
 745                         }
 746                 }
 747         }
 748         return 0;
 749 }
 750
 751 /* write a formatted string to all users who share at least one common
 752  * channel, including the source user e.g. for use in NICK */
 753
 754 void WriteCommon(userrec *u, char* text, ...)
 755 {
 756         if (!u)
 757         {
 758                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 759                 return;
 760         }
 761
 762         if (u->registered != 7) {
 763                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 764                 return;
 765         }
 766
 767         char textbuffer[MAXBUF];
 768         va_list argsPtr;
 769         va_start (argsPtr, text);
 770         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 771         va_end(argsPtr);
 772
 773         WriteFrom(u->fd,u,"%s",textbuffer);
 774
 775         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 776         {
 777                 if (i->second)
 778                 {
 779                         if (common_channels(u,i->second) && (i->second != u))
 780                         {
 781                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 782                         }
 783                 }
 784         }
 785 }
 786
 787 /* write a formatted string to all users who share at least one common
 788  * channel, NOT including the source user e.g. for use in QUIT */
 789
 790 void WriteCommonExcept(userrec *u, char* text, ...)
 791 {
 792         if (!u)
 793         {
 794                 log(DEFAULT,"*** BUG *** WriteCommon was given an invalid parameter");
 795                 return;
 796         }
 797
 798         if (u->registered != 7) {
 799                 log(DEFAULT,"*** BUG *** WriteCommon on an unregistered user");
 800                 return;
 801         }
 802
 803         char textbuffer[MAXBUF];
 804         va_list argsPtr;
 805         va_start (argsPtr, text);
 806         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 807         va_end(argsPtr);
 808
 809         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 810         {
 811                 if (i->second)
 812                 {
 813                         if ((common_channels(u,i->second)) && (u != i->second))
 814                         {
 815                                 WriteFrom(i->second->fd,u,"%s",textbuffer);
 816                         }
 817                 }
 818         }
 819 }
 820
 821 void WriteOpers(char* text, ...)
 822 {
 823         if (!text)
 824         {
 825                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
 826                 return;
 827         }
 828
 829         char textbuffer[MAXBUF];
 830         va_list argsPtr;
 831         va_start (argsPtr, text);
 832         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 833         va_end(argsPtr);
 834
 835         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 836         {
 837                 if (i->second)
 838                 {
 839                         if (strchr(i->second->modes,'o'))
 840                         {
 841                                 if (strchr(i->second->modes,'s'))
 842                                 {
 843                                         // send server notices to all with +s
 844                                         // (TODO: needs SNOMASKs)
 845                                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
 846                                 }
 847                         }
 848                 }
 849         }
 850 }
 851
 852 // returns TRUE of any users on channel C occupy server 'servername'.
 853
 854 bool ChanAnyOnThisServer(chanrec *c,char* servername)
 855 {
 856         log(DEBUG,"ChanAnyOnThisServer");
 857         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 858         {
 859                 if (has_channel(i->second,c))
 860                 {
 861                         if (!strcasecmp(i->second->server,servername))
 862                         {
 863                                 return true;
 864                         }
 865                 }
 866         }
 867         return false;
 868 }
 869
 870 // returns true if user 'u' shares any common channels with any users on server 'servername'
 871
 872 bool CommonOnThisServer(userrec* u,const char* servername)
 873 {
 874         log(DEBUG,"ChanAnyOnThisServer");
 875         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
 876         {
 877                 if ((common_channels(u,i->second)) && (u != i->second))
 878                 {
 879                         if (!strcasecmp(i->second->server,servername))
 880                         {
 881                                 log(DEBUG,"%s is common to %s sharing with %s",i->second->nick,servername,u->nick);
 882                                 return true;
 883                         }
 884                 }
 885         }
 886         return false;
 887 }
 888
 889
 890 void NetSendToCommon(userrec* u, char* s)
 891 {
 892         char buffer[MAXBUF];
 893         snprintf(buffer,MAXBUF,"%s",s);
 894
 895         for (int j = 0; j < 32; j++)
 896         {
 897                 if (me[j] != NULL)
 898                 {
 899                         for (int k = 0; k < me[j]->connectors.size(); k++)
 900                         {
 901                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 902                                 {
 903                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 904                                 }
 905                         }
 906                 }
 907         }
 908 }
 909
 910
 911 void NetSendToAll(char* s)
 912 {
 913         char buffer[MAXBUF];
 914         snprintf(buffer,MAXBUF,"%s",s);
 915
 916         for (int j = 0; j < 32; j++)
 917         {
 918                 if (me[j] != NULL)
 919                 {
 920                         for (int k = 0; k < me[j]->connectors.size(); k++)
 921                         {
 922                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 923                         }
 924                 }
 925         }
 926 }
 927
 928
 929 void NetSendToOne(char* target,char* s)
 930 {
 931         char buffer[MAXBUF];
 932         snprintf(buffer,MAXBUF,"%s",s);
 933
 934         for (int j = 0; j < 32; j++)
 935         {
 936                 if (me[j] != NULL)
 937                 {
 938                         for (int k = 0; k < me[j]->connectors.size(); k++)
 939                         {
 940                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 941                                 {
 942                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 943                                 }
 944                         }
 945                 }
 946         }
 947 }
 948
 949 void NetSendToAllExcept(char* target,char* s)
 950 {
 951         char buffer[MAXBUF];
 952         snprintf(buffer,MAXBUF,"%s",s);
 953
 954         for (int j = 0; j < 32; j++)
 955         {
 956                 if (me[j] != NULL)
 957                 {
 958                         for (int k = 0; k < me[j]->connectors.size(); k++)
 959                         {
 960                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 961                                 {
 962                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 963                                 }
 964                         }
 965                 }
 966         }
 967 }
 968
 969
 970 bool hasumode(userrec* user, char mode)
 971 {
 972         if (user)
 973         {
 974                 return (strchr(user->modes,mode)>0);
 975         }
 976         else return false;
 977 }
 978
 979 void WriteMode(const char* modes, int flags, const char* text, ...)
 980 {
 981         if ((!text) || (!modes) || (!flags))
 982         {
 983                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
 984                 return;
 985         }
 986
 987         char textbuffer[MAXBUF];
 988         va_list argsPtr;
 989         va_start (argsPtr, text);
 990         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
 991         va_end(argsPtr);
 992
 993         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
 994         {
 995                 if (i->second)
 996                 {
 997                         bool send_to_user = false;
 998
 999                         if (flags == WM_AND)
1000                         {
1001                                 send_to_user = true;
1002                                 for (int n = 0; n < strlen(modes); n++)
1003                                 {
1004                                         if (!hasumode(i->second,modes[n]))
1005                                         {
1006                                                 send_to_user = false;
1007                                                 break;
1008                                         }
1009                                 }
1010                         }
1011                         else if (flags == WM_OR)
1012                         {
1013                                 send_to_user = false;
1014                                 for (int n = 0; n < strlen(modes); n++)
1015                                 {
1016                                         if (hasumode(i->second,modes[n]))
1017                                         {
1018                                                 send_to_user = true;
1019                                                 break;
1020                                         }
1021                                 }
1022                         }
1023
1024                         if (send_to_user)
1025                         {
1026                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1027                         }
1028                 }
1029         }
1030 }
1031
1032 void ChangeName(userrec* user, const char* gecos)
1033 {
1034         strncpy(user->fullname,gecos,MAXBUF);
1035
1036         // TODO: replace these with functions:
1037         // NetSendToAll - to all
1038         // NetSendToCommon - to all that hold users sharing a common channel with another user
1039         // NetSendToOne - to one server
1040         // NetSendToAllExcept - send to all but one
1041         // all by servername
1042
1043         char buffer[MAXBUF];
1044         snprintf(buffer,MAXBUF,"a %s :%s",user->nick,gecos);
1045         NetSendToAll(buffer);
1046 }
1047
1048 void ChangeDisplayedHost(userrec* user, const char* host)
1049 {
1050         strncpy(user->dhost,host,160);
1051         char buffer[MAXBUF];
1052         snprintf(buffer,MAXBUF,"b %s :%s",user->nick,host);
1053         NetSendToAll(buffer);
1054 }
1055
1056 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1057 {
1058         if ((!text) || (!source))
1059         {
1060                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1061                 return;
1062         }
1063
1064         int i = 0;
1065         char textbuffer[MAXBUF];
1066         va_list argsPtr;
1067         va_start (argsPtr, text);
1068         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1069         va_end(argsPtr);
1070
1071         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1072         {
1073                 if (i->second)
1074                 {
1075                         if (strchr(i->second->modes,'w'))
1076                         {
1077                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
1078                         }
1079                 }
1080         }
1081
1082         if (!local_only)
1083         {
1084                 char buffer[MAXBUF];
1085                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1086                 NetSendToAll(buffer);
1087         }
1088 }
1089
1090 /* convert a string to lowercase. Note following special circumstances
1091  * taken from RFC 1459. Many "official" server branches still hold to this
1092  * rule so i will too;
1093  *
1094  *  Because of IRC's scandanavian origin, the characters {}| are
1095  *  considered to be the lower case equivalents of the characters []\,
1096  *  respectively. This is a critical issue when determining the
1097  *  equivalence of two nicknames.
1098  */
1099
1100 void strlower(char *n)
1101 {
1102         if (!n)
1103         {
1104                 return;
1105         }
1106         for (int i = 0; i != strlen(n); i++)
1107         {
1108                 n[i] = tolower(n[i]);
1109                 if (n[i] == '[')
1110                         n[i] = '{';
1111                 if (n[i] == ']')
1112                         n[i] = '}';
1113                 if (n[i] == '\\')
1114                         n[i] = '|';
1115         }
1116 }
1117
1118 /* verify that a user's ident and nickname is valid */
1119
1120 int isident(const char* n)
1121 {
1122         char v[MAXBUF];
1123         if (!n)
1124
1125         {
1126                 return 0;
1127         }
1128         if (!strcmp(n,""))
1129         {
1130                 return 0;
1131         }
1132         for (int i = 0; i != strlen(n); i++)
1133         {
1134                 if ((n[i] < 33) || (n[i] > 125))
1135                 {
1136                         return 0;
1137                 }
1138                 /* can't occur ANYWHERE in an Ident! */
1139                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1140                 {
1141                         return 0;
1142                 }
1143         }
1144         return 1;
1145 }
1146
1147
1148 int isnick(const char* n)
1149 {
1150         int i = 0;
1151         char v[MAXBUF];
1152         if (!n)
1153         {
1154                 return 0;
1155         }
1156         if (!strcmp(n,""))
1157         {
1158                 return 0;
1159         }
1160         if (strlen(n) > NICKMAX-1)
1161         {
1162                 return 0;
1163         }
1164         for (int i = 0; i != strlen(n); i++)
1165         {
1166                 if ((n[i] < 33) || (n[i] > 125))
1167                 {
1168                         return 0;
1169                 }
1170                 /* can't occur ANYWHERE in a nickname! */
1171                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1172                 {
1173                         return 0;
1174                 }
1175                 /* can't occur as the first char of a nickname... */
1176                 if ((strchr("0123456789",n[i])) && (!i))
1177                 {
1178                         return 0;
1179                 }
1180         }
1181         return 1;
1182 }
1183
1184 /* Find a user record by nickname and return a pointer to it */
1185
1186 userrec* Find(string nick)
1187 {
1188         user_hash::iterator iter = clientlist.find(nick);
1189
1190         if (iter == clientlist.end())
1191                 /* Couldn't find it */
1192                 return NULL;
1193
1194         return iter->second;
1195 }
1196
1197 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1198 {
1199         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1200         {
1201                 if (i->second)
1202                 {
1203                         if (i->second->fd == fd)
1204                         {
1205                                 i->second->bytes_out+=data_out;
1206                                 i->second->cmds_out++;
1207                         }
1208                 }
1209         }
1210 }
1211
1212
1213 /* find a channel record by channel name and return a pointer to it */
1214
1215 chanrec* FindChan(const char* chan)
1216 {
1217         if (!chan)
1218         {
1219                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1220                 return NULL;
1221         }
1222
1223         chan_hash::iterator iter = chanlist.find(chan);
1224
1225         if (iter == chanlist.end())
1226                 /* Couldn't find it */
1227                 return NULL;
1228
1229         return iter->second;
1230 }
1231
1232
1233 void purge_empty_chans(void)
1234 {
1235         int go_again = 1, purge = 0;
1236
1237         while (go_again)
1238         {
1239                 go_again = 0;
1240                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1241                 {
1242                         if (i->second) {
1243                                 if (!usercount(i->second))
1244                                 {
1245                                         /* kill the record */
1246                                         if (i != chanlist.end())
1247                                         {
1248                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1249                                                 delete i->second;
1250                                                 chanlist.erase(i);
1251                                                 go_again = 1;
1252                                                 purge++;
1253                                                 break;
1254                                         }
1255                                 }
1256                                 else
1257                                 {
1258                                         log(DEBUG,"skipped purge for %s",i->second->name);
1259                                 }
1260                         }
1261                 }
1262         }
1263         log(DEBUG,"completed channel purge, killed %d",purge);
1264 }
1265
1266 /* returns the status character for a given user on a channel, e.g. @ for op,
1267  * % for halfop etc. If the user has several modes set, the highest mode
1268  * the user has must be returned. */
1269
1270 char* cmode(userrec *user, chanrec *chan)
1271 {
1272         if ((!user) || (!chan))
1273         {
1274                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1275                 return "";
1276         }
1277
1278         int i;
1279         for (int i = 0; i != MAXCHANS; i++)
1280         {
1281                 if ((user->chans[i].channel == chan) && (chan != NULL))
1282                 {
1283                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1284                         {
1285                                 return "@";
1286                         }
1287                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1288                         {
1289                                 return "%";
1290                         }
1291                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1292                         {
1293                                 return "+";
1294                         }
1295                         return "";
1296                 }
1297         }
1298 }
1299
1300 char scratch[MAXBUF];
1301 char sparam[MAXBUF];
1302
1303 char* chanmodes(chanrec *chan)
1304 {
1305         if (!chan)
1306         {
1307                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1308                 strcpy(scratch,"");
1309                 return scratch;
1310         }
1311
1312         strcpy(scratch,"");
1313         strcpy(sparam,"");
1314         if (chan->noexternal)
1315         {
1316                 strncat(scratch,"n",MAXMODES);
1317         }
1318         if (chan->topiclock)
1319         {
1320                 strncat(scratch,"t",MAXMODES);
1321         }
1322         if (strcmp(chan->key,""))
1323         {
1324                 strncat(scratch,"k",MAXMODES);
1325         }
1326         if (chan->limit)
1327         {
1328                 strncat(scratch,"l",MAXMODES);
1329         }
1330         if (chan->inviteonly)
1331         {
1332                 strncat(scratch,"i",MAXMODES);
1333         }
1334         if (chan->moderated)
1335         {
1336                 strncat(scratch,"m",MAXMODES);
1337         }
1338         if (chan->secret)
1339         {
1340                 strncat(scratch,"s",MAXMODES);
1341         }
1342         if (chan->c_private)
1343         {
1344                 strncat(scratch,"p",MAXMODES);
1345         }
1346         if (strcmp(chan->key,""))
1347         {
1348                 strncat(sparam,chan->key,MAXBUF);
1349         }
1350         if (chan->limit)
1351         {
1352                 char foo[24];
1353                 sprintf(foo," %d",chan->limit);
1354                 strncat(sparam,foo,MAXBUF);
1355         }
1356         if (strlen(chan->custom_modes))
1357         {
1358                 strncat(scratch,chan->custom_modes,MAXMODES);
1359                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1360                 {
1361                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1362                         if (extparam != "")
1363                         {
1364                                 strncat(sparam," ",MAXBUF);
1365                                 strncat(sparam,extparam.c_str(),MAXBUF);
1366                         }
1367                 }
1368         }
1369         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1370         strncat(scratch,sparam,MAXMODES);
1371         return scratch;
1372 }
1373
1374 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1375  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1376  * highest mode the user has must be returned. */
1377
1378 int cstatus(userrec *user, chanrec *chan)
1379 {
1380         if ((!chan) || (!user))
1381         {
1382                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1383                 return 0;
1384         }
1385
1386         for (int i = 0; i != MAXCHANS; i++)
1387         {
1388                 if ((user->chans[i].channel == chan) && (chan != NULL))
1389                 {
1390                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1391                         {
1392                                 return STATUS_OP;
1393                         }
1394                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1395                         {
1396                                 return STATUS_HOP;
1397                         }
1398                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1399                         {
1400                                 return STATUS_VOICE;
1401                         }
1402                         return STATUS_NORMAL;
1403                 }
1404         }
1405 }
1406
1407
1408 /* compile a userlist of a channel into a string, each nick seperated by
1409  * spaces and op, voice etc status shown as @ and + */
1410
1411 void userlist(userrec *user,chanrec *c)
1412 {
1413         if ((!c) || (!user))
1414         {
1415                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1416                 return;
1417         }
1418
1419         sprintf(list,"353 %s = %s :", user->nick, c->name);
1420         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1421         {
1422                 if (has_channel(i->second,c))
1423                 {
1424                         if (isnick(i->second->nick))
1425                         {
1426                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1427                                 {
1428                                         /* user is +i, and source not on the channel, does not show
1429                                          * nick in NAMES list */
1430                                         continue;
1431                                 }
1432                                 strcat(list,cmode(i->second,c));
1433                                 strcat(list,i->second->nick);
1434                                 strcat(list," ");
1435                                 if (strlen(list)>(480-NICKMAX))
1436                                 {
1437                                         /* list overflowed into
1438                                          * multiple numerics */
1439                                         WriteServ(user->fd,list);
1440                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1441                                 }
1442                         }
1443                 }
1444         }
1445         /* if whats left in the list isnt empty, send it */
1446         if (list[strlen(list)-1] != ':')
1447         {
1448                 WriteServ(user->fd,list);
1449         }
1450 }
1451
1452 /* return a count of the users on a specific channel accounting for
1453  * invisible users who won't increase the count. e.g. for /LIST */
1454
1455 int usercount_i(chanrec *c)
1456 {
1457         int i = 0;
1458         int count = 0;
1459
1460         if (!c)
1461         {
1462                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1463                 return 0;
1464         }
1465
1466         strcpy(list,"");
1467         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1468         {
1469                 if (i->second)
1470                 {
1471                         if (has_channel(i->second,c))
1472                         {
1473                                 if (isnick(i->second->nick))
1474                                 {
1475                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1476                                         {
1477                                                 /* user is +i, and source not on the channel, does not show
1478                                                  * nick in NAMES list */
1479                                                 continue;
1480                                         }
1481                                         count++;
1482                                 }
1483                         }
1484                 }
1485         }
1486         log(DEBUG,"usercount_i: %s %d",c->name,count);
1487         return count;
1488 }
1489
1490
1491 int usercount(chanrec *c)
1492 {
1493         int i = 0;
1494         int count = 0;
1495
1496         if (!c)
1497         {
1498                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1499                 return 0;
1500         }
1501
1502         strcpy(list,"");
1503         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1504         {
1505                 if (i->second)
1506                 {
1507                         if (has_channel(i->second,c))
1508                         {
1509                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1510                                 {
1511                                         count++;
1512                                 }
1513                         }
1514                 }
1515         }
1516         log(DEBUG,"usercount: %s %d",c->name,count);
1517         return count;
1518 }
1519
1520
1521 /* add a channel to a user, creating the record for it if needed and linking
1522  * it to the user record */
1523
1524 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1525 {
1526         if ((!user) || (!cn))
1527         {
1528                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1529                 return 0;
1530         }
1531
1532         int i = 0;
1533         chanrec* Ptr;
1534         int created = 0;
1535         char cname[MAXBUF];
1536
1537         strncpy(cname,cn,MAXBUF);
1538
1539         // we MUST declare this wherever we use FOREACH_RESULT
1540         int MOD_RESULT = 0;
1541
1542         if (strlen(cname) > CHANMAX-1)
1543         {
1544                 cname[CHANMAX-1] = '\0';
1545         }
1546
1547         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1548
1549         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1550         {
1551                 return NULL; // already on the channel!
1552         }
1553
1554
1555         if (!FindChan(cname))
1556         {
1557                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1558                 if (MOD_RESULT) {
1559                         return NULL;
1560                 }
1561
1562                 /* create a new one */
1563                 log(DEBUG,"add_channel: creating: %s",cname);
1564                 {
1565                         chanlist[cname] = new chanrec();
1566
1567                         strcpy(chanlist[cname]->name, cname);
1568                         chanlist[cname]->topiclock = 1;
1569                         chanlist[cname]->noexternal = 1;
1570                         chanlist[cname]->created = time(NULL);
1571                         strcpy(chanlist[cname]->topic, "");
1572                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1573                         chanlist[cname]->topicset = 0;
1574                         Ptr = chanlist[cname];
1575                         log(DEBUG,"add_channel: created: %s",cname);
1576                         /* set created to 2 to indicate user
1577                          * is the first in the channel
1578                          * and should be given ops */
1579                         created = 2;
1580                 }
1581         }
1582         else
1583         {
1584                 /* channel exists, just fish out a pointer to its struct */
1585                 Ptr = FindChan(cname);
1586                 if (Ptr)
1587                 {
1588                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1589
1590                         // the override flag allows us to bypass channel modes
1591                         // and bans (used by servers)
1592                         if (!override)
1593                         {
1594                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1595                                 if (MOD_RESULT) {
1596                                         return NULL;
1597                                 }
1598
1599                                 if (strcmp(Ptr->key,""))
1600                                 {
1601                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1602                                         if (!key)
1603                                         {
1604                                                 log(DEBUG,"add_channel: no key given in JOIN");
1605                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1606                                                 return NULL;
1607                                         }
1608                                         else
1609                                         {
1610                                                 log(DEBUG,"key at %p is %s",key,key);
1611                                                 if (strcasecmp(key,Ptr->key))
1612                                                 {
1613                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1614                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1615                                                         return NULL;
1616                                                 }
1617                                         }
1618                                 }
1619                                 log(DEBUG,"add_channel: no key");
1620
1621                                 if (Ptr->inviteonly)
1622                                 {
1623                                         log(DEBUG,"add_channel: channel is +i");
1624                                         if (user->IsInvited(Ptr->name))
1625                                         {
1626                                                 /* user was invited to channel */
1627                                                 /* there may be an optional channel NOTICE here */
1628                                         }
1629                                         else
1630                                         {
1631                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1632                                                 return NULL;
1633                                         }
1634                                 }
1635                                 log(DEBUG,"add_channel: channel is not +i");
1636
1637                                 if (Ptr->limit)
1638                                 {
1639                                         if (usercount(Ptr) == Ptr->limit)
1640                                         {
1641                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1642                                                 return NULL;
1643                                         }
1644                                 }
1645
1646                                 log(DEBUG,"add_channel: about to walk banlist");
1647
1648                                 /* check user against the channel banlist */
1649                                 if (Ptr)
1650                                 {
1651                                         if (Ptr->bans.size())
1652                                         {
1653                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1654                                                 {
1655                                                         if (match(user->GetFullHost(),i->data))
1656                                                         {
1657                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1658                                                                 return NULL;
1659                                                         }
1660                                                 }
1661                                         }
1662                                 }
1663
1664                                 log(DEBUG,"add_channel: bans checked");
1665
1666
1667                                 if ((Ptr) && (user))
1668                                 {
1669                                         user->RemoveInvite(Ptr->name);
1670                                 }
1671
1672                                 log(DEBUG,"add_channel: invites removed");
1673
1674                         }
1675                         else
1676                         {
1677                                 log(DEBUG,"Overridden checks");
1678                         }
1679
1680
1681                 }
1682                 created = 1;
1683         }
1684
1685         log(DEBUG,"Passed channel checks");
1686
1687         for (int i =0; i != MAXCHANS; i++)
1688         {
1689                 log(DEBUG,"Check location %d",i);
1690                 if (user->chans[i].channel == NULL)
1691                 {
1692                         log(DEBUG,"Adding into their channel list at location %d",i);
1693
1694                         if (created == 2)
1695                         {
1696                                 /* first user in is given ops */
1697                                 user->chans[i].uc_modes = UCMODE_OP;
1698                         }
1699                         else
1700                         {
1701                                 user->chans[i].uc_modes = 0;
1702                         }
1703                         user->chans[i].channel = Ptr;
1704                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1705
1706                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1707                         {
1708                                 // use the stamdard J token with no privilages.
1709                                 char buffer[MAXBUF];
1710                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1711                                 NetSendToAll(buffer);
1712                         }
1713
1714                         log(DEBUG,"Sent JOIN to client");
1715
1716                         if (Ptr->topicset)
1717                         {
1718                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1719                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1720                         }
1721                         userlist(user,Ptr);
1722                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1723                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1724                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1725                         FOREACH_MOD OnUserJoin(user,Ptr);
1726                         return Ptr;
1727                 }
1728         }
1729         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1730         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1731         return NULL;
1732 }
1733
1734 /* remove a channel from a users record, and remove the record from memory
1735  * if the channel has become empty */
1736
1737 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1738 {
1739         if ((!user) || (!cname))
1740         {
1741                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1742                 return NULL;
1743         }
1744
1745         chanrec* Ptr;
1746         int created = 0;
1747
1748         if ((!cname) || (!user))
1749         {
1750                 return NULL;
1751         }
1752
1753         Ptr = FindChan(cname);
1754
1755         if (!Ptr)
1756         {
1757                 return NULL;
1758         }
1759
1760         FOREACH_MOD OnUserPart(user,Ptr);
1761         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1762
1763         for (int i =0; i != MAXCHANS; i++)
1764         {
1765                 /* zap it from the channel list of the user */
1766                 if (user->chans[i].channel == Ptr)
1767                 {
1768                         if (reason)
1769                         {
1770                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1771
1772                                 if (!local)
1773                                 {
1774                                         char buffer[MAXBUF];
1775                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1776                                         NetSendToAll(buffer);
1777                                 }
1778
1779
1780                         }
1781                         else
1782                         {
1783                                 if (!local)
1784                                 {
1785                                         char buffer[MAXBUF];
1786                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1787                                         NetSendToAll(buffer);
1788                                 }
1789
1790                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1791                         }
1792                         user->chans[i].uc_modes = 0;
1793                         user->chans[i].channel = NULL;
1794                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1795                         break;
1796                 }
1797         }
1798
1799         /* if there are no users left on the channel */
1800         if (!usercount(Ptr))
1801         {
1802                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1803
1804                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1805
1806                 /* kill the record */
1807                 if (iter != chanlist.end())
1808                 {
1809                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1810                         delete iter->second;
1811                         chanlist.erase(iter);
1812                 }
1813         }
1814 }
1815
1816
1817 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1818 {
1819         if ((!src) || (!user) || (!Ptr) || (!reason))
1820         {
1821                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1822                 return;
1823         }
1824
1825         int i = 0;
1826         int created = 0;
1827
1828         if ((!Ptr) || (!user) || (!src))
1829         {
1830                 return;
1831         }
1832
1833         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1834
1835         if (!has_channel(user,Ptr))
1836         {
1837                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1838                 return;
1839         }
1840         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1841         {
1842                 if (cstatus(src,Ptr) == STATUS_HOP)
1843                 {
1844                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1845                 }
1846                 else
1847                 {
1848                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1849                 }
1850
1851                 return;
1852         }
1853
1854         for (int i =0; i != MAXCHANS; i++)
1855         {
1856                 /* zap it from the channel list of the user */
1857                 if (user->chans[i].channel)
1858                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1859                 {
1860                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1861                         user->chans[i].uc_modes = 0;
1862                         user->chans[i].channel = NULL;
1863                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1864                         break;
1865                 }
1866         }
1867
1868         /* if there are no users left on the channel */
1869         if (!usercount(Ptr))
1870         {
1871                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1872
1873                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1874
1875                 /* kill the record */
1876                 if (iter != chanlist.end())
1877                 {
1878                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1879                         delete iter->second;
1880                         chanlist.erase(iter);
1881                 }
1882         }
1883 }
1884
1885
1886 /* returns 1 if user u has channel c in their record, 0 if not */
1887
1888 int has_channel(userrec *u, chanrec *c)
1889 {
1890         if ((!u) || (!c))
1891         {
1892                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1893                 return 0;
1894         }
1895         for (int i =0; i != MAXCHANS; i++)
1896         {
1897                 if (u->chans[i].channel == c)
1898                 {
1899                         return 1;
1900                 }
1901         }
1902         return 0;
1903 }
1904
1905 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1906 {
1907         userrec *d;
1908         int i;
1909
1910         if ((!user) || (!dest) || (!chan))
1911         {
1912                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1913                 return 0;
1914         }
1915         if (status < STATUS_OP)
1916         {
1917                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1918                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1919                 return 0;
1920         }
1921         else
1922         {
1923                 if (!isnick(dest))
1924                 {
1925                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1926                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1927                         return 0;
1928                 }
1929                 d = Find(dest);
1930                 if (!d)
1931                 {
1932                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1933                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1934                         return 0;
1935                 }
1936                 else
1937                 {
1938                         for (int i = 0; i != MAXCHANS; i++)
1939                         {
1940                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1941                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1942                                 {
1943                                         if (d->chans[i].uc_modes & UCMODE_OP)
1944                                         {
1945                                                 /* mode already set on user, dont allow multiple */
1946                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1947                                                 return 0;
1948                                         }
1949                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1950                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1951                                         return 1;
1952                                 }
1953                         }
1954                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1955                 }
1956         }
1957         return 1;
1958 }
1959
1960 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1961 {
1962         userrec *d;
1963         int i;
1964
1965         if ((!user) || (!dest) || (!chan))
1966         {
1967                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
1968                 return 0;
1969         }
1970         if (status != STATUS_OP)
1971         {
1972                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1973                 return 0;
1974         }
1975         else
1976         {
1977                 d = Find(dest);
1978                 if (!isnick(dest))
1979                 {
1980                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1981                         return 0;
1982                 }
1983                 if (!d)
1984                 {
1985                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1986                         return 0;
1987                 }
1988                 else
1989                 {
1990                         for (int i = 0; i != MAXCHANS; i++)
1991                         {
1992                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1993                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1994                                 {
1995                                         if (d->chans[i].uc_modes & UCMODE_HOP)
1996                                         {
1997                                                 /* mode already set on user, dont allow multiple */
1998                                                 return 0;
1999                                         }
2000                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
2001                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
2002                                         return 1;
2003                                 }
2004                         }
2005                 }
2006         }
2007         return 1;
2008 }
2009
2010 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
2011 {
2012         userrec *d;
2013         int i;
2014
2015         if ((!user) || (!dest) || (!chan))
2016         {
2017                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
2018                 return 0;
2019         }
2020         if (status < STATUS_HOP)
2021         {
2022                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2023                 return 0;
2024         }
2025         else
2026         {
2027                 d = Find(dest);
2028                 if (!isnick(dest))
2029                 {
2030                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2031                         return 0;
2032                 }
2033                 if (!d)
2034                 {
2035                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2036                         return 0;
2037                 }
2038                 else
2039                 {
2040                         for (int i = 0; i != MAXCHANS; i++)
2041                         {
2042                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2043                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2044                                 {
2045                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
2046                                         {
2047                                                 /* mode already set on user, dont allow multiple */
2048                                                 return 0;
2049                                         }
2050                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
2051                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
2052                                         return 1;
2053                                 }
2054                         }
2055                 }
2056         }
2057         return 1;
2058 }
2059
2060 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
2061 {
2062         userrec *d;
2063         int i;
2064
2065         if ((!user) || (!dest) || (!chan))
2066         {
2067                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
2068                 return 0;
2069         }
2070         if (status < STATUS_OP)
2071         {
2072                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
2073                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2074                 return 0;
2075         }
2076         else
2077         {
2078                 d = Find(dest);
2079                 if (!isnick(dest))
2080                 {
2081                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
2082                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2083                         return 0;
2084                 }
2085                 if (!d)
2086                 {
2087                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
2088                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2089                         return 0;
2090                 }
2091                 else
2092                 {
2093                         for (int i = 0; i != MAXCHANS; i++)
2094                         {
2095                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2096                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2097                                 {
2098                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2099                                         {
2100                                                 /* mode already set on user, dont allow multiple */
2101                                                 return 0;
2102                                         }
2103                                         d->chans[i].uc_modes ^= UCMODE_OP;
2104                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2105                                         return 1;
2106                                 }
2107                         }
2108                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2109                 }
2110         }
2111         return 1;
2112 }
2113
2114 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2115 {
2116         userrec *d;
2117         int i;
2118
2119         if ((!user) || (!dest) || (!chan))
2120         {
2121                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2122                 return 0;
2123         }
2124         if (status != STATUS_OP)
2125         {
2126                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2127                 return 0;
2128         }
2129         else
2130         {
2131                 d = Find(dest);
2132                 if (!isnick(dest))
2133                 {
2134                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2135                         return 0;
2136                 }
2137                 if (!d)
2138                 {
2139                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2140                         return 0;
2141                 }
2142                 else
2143                 {
2144                         for (int i = 0; i != MAXCHANS; i++)
2145                         {
2146                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2147                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2148                                 {
2149                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2150                                         {
2151                                                 /* mode already set on user, dont allow multiple */
2152                                                 return 0;
2153                                         }
2154                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2155                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2156                                         return 1;
2157                                 }
2158                         }
2159                 }
2160         }
2161         return 1;
2162 }
2163
2164 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2165 {
2166         userrec *d;
2167         int i;
2168
2169         if ((!user) || (!dest) || (!chan))
2170         {
2171                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2172                 return 0;
2173         }
2174         if (status < STATUS_HOP)
2175         {
2176                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2177                 return 0;
2178         }
2179         else
2180         {
2181                 d = Find(dest);
2182                 if (!isnick(dest))
2183                 {
2184                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2185                         return 0;
2186                 }
2187                 if (!d)
2188                 {
2189                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2190                         return 0;
2191                 }
2192                 else
2193                 {
2194                         for (int i = 0; i != MAXCHANS; i++)
2195                         {
2196                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2197                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2198                                 {
2199                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2200                                         {
2201                                                 /* mode already set on user, dont allow multiple */
2202                                                 return 0;
2203                                         }
2204                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2205                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2206                                         return 1;
2207                                 }
2208                         }
2209                 }
2210         }
2211         return 1;
2212 }
2213
2214 void TidyBan(char *ban)
2215 {
2216         if (!ban) {
2217                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2218                 return;
2219         }
2220
2221         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2222
2223         strcpy(temp,ban);
2224
2225         char* pos_of_pling = strchr(temp,'!');
2226         char* pos_of_at = strchr(temp,'@');
2227
2228         pos_of_pling[0] = '\0';
2229         pos_of_at[0] = '\0';
2230         pos_of_pling++;
2231         pos_of_at++;
2232
2233         strncpy(NICK,temp,NICKMAX);
2234         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2235         strncpy(HOST,pos_of_at,160);
2236
2237         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2238 }
2239
2240 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2241 {
2242         if ((!user) || (!dest) || (!chan)) {
2243                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2244                 return 0;
2245         }
2246
2247         BanItem b;
2248         if ((!user) || (!dest) || (!chan))
2249                 return 0;
2250         if (strchr(dest,'!')==0)
2251                 return 0;
2252         if (strchr(dest,'@')==0)
2253                 return 0;
2254         for (int i = 0; i < strlen(dest); i++)
2255                 if (dest[i] < 32)
2256                         return 0;
2257         for (int i = 0; i < strlen(dest); i++)
2258                 if (dest[i] > 126)
2259                         return 0;
2260         int c = 0;
2261         for (int i = 0; i < strlen(dest); i++)
2262                 if (dest[i] == '!')
2263                         c++;
2264         if (c>1)
2265                 return 0;
2266         c = 0;
2267         for (int i = 0; i < strlen(dest); i++)
2268                 if (dest[i] == '@')
2269                         c++;
2270         if (c>1)
2271                 return 0;
2272         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2273
2274         TidyBan(dest);
2275         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2276         {
2277                 if (!strcasecmp(i->data,dest))
2278                 {
2279                         // dont allow a user to set the same ban twice
2280                         return 0;
2281                 }
2282         }
2283
2284         b.set_time = time(NULL);
2285         strncpy(b.data,dest,MAXBUF);
2286         strncpy(b.set_by,user->nick,NICKMAX);
2287         chan->bans.push_back(b);
2288         return 1;
2289 }
2290
2291 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2292 {
2293         if ((!user) || (!dest) || (!chan)) {
2294                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2295                 return 0;
2296         }
2297
2298         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2299         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2300         {
2301                 if (!strcasecmp(i->data,dest))
2302                 {
2303                         chan->bans.erase(i);
2304                         return 1;
2305                 }
2306         }
2307         return 0;
2308 }
2309
2310 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2311 {
2312         if (!parameters) {
2313                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2314                 return;
2315         }
2316
2317         char modelist[MAXBUF];
2318         char outlist[MAXBUF];
2319         char outstr[MAXBUF];
2320         char outpars[32][MAXBUF];
2321         int param = 2;
2322         int pc = 0;
2323         int ptr = 0;
2324         int mdir = 1;
2325         int r = 0;
2326         bool k_set = false, l_set = false;
2327
2328         if (pcnt < 2)
2329         {
2330                 return;
2331         }
2332
2333         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2334
2335         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2336                                         /* parameters[2] onwards are parameters for
2337                                          * modes that require them :) */
2338         strcpy(outlist,"+");
2339         mdir = 1;
2340
2341         log(DEBUG,"process_modes: modelist: %s",modelist);
2342
2343         for (ptr = 0; ptr < strlen(modelist); ptr++)
2344         {
2345                 r = 0;
2346
2347                 {
2348                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2349                         char modechar = modelist[ptr];
2350                         switch (modelist[ptr])
2351                         {
2352                                 case '-':
2353                                         if (mdir != 0)
2354                                         {
2355                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2356                                                 {
2357                                                         outlist[strlen(outlist)-1] = '-';
2358                                                 }
2359                                                 else
2360                                                 {
2361                                                         strcat(outlist,"-");
2362                                                 }
2363                                         }
2364                                         mdir = 0;
2365
2366                                 break;
2367
2368                                 case '+':
2369                                         if (mdir != 1)
2370                                         {
2371                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2372                                                 {
2373                                                         outlist[strlen(outlist)-1] = '+';
2374                                                 }
2375                                                 else
2376                                                 {
2377                                                         strcat(outlist,"+");
2378                                                 }
2379                                         }
2380                                         mdir = 1;
2381                                 break;
2382
2383                                 case 'o':
2384                                         log(DEBUG,"Ops");
2385                                         if ((param >= pcnt)) break;
2386                                         log(DEBUG,"Enough parameters left");
2387                                         if (mdir == 1)
2388                                         {
2389                                                 log(DEBUG,"calling give_ops");
2390                                                 r = give_ops(user,parameters[param++],chan,status);
2391                                         }
2392                                         else
2393                                         {
2394                                                 log(DEBUG,"calling take_ops");
2395                                                 r = take_ops(user,parameters[param++],chan,status);
2396                                         }
2397                                         if (r)
2398                                         {
2399                                                 strcat(outlist,"o");
2400                                                 strcpy(outpars[pc++],parameters[param-1]);
2401                                         }
2402                                 break;
2403
2404                                 case 'h':
2405                                         if ((param >= pcnt)) break;
2406                                         if (mdir == 1)
2407                                         {
2408                                                 r = give_hops(user,parameters[param++],chan,status);
2409                                         }
2410                                         else
2411                                         {
2412                                                 r = take_hops(user,parameters[param++],chan,status);
2413                                         }
2414                                         if (r)
2415                                         {
2416                                                 strcat(outlist,"h");
2417                                                 strcpy(outpars[pc++],parameters[param-1]);
2418                                         }
2419                                 break;
2420
2421
2422                                 case 'v':
2423                                         if ((param >= pcnt)) break;
2424                                         if (mdir == 1)
2425                                         {
2426                                                 r = give_voice(user,parameters[param++],chan,status);
2427                                         }
2428                                         else
2429                                         {
2430                                                 r = take_voice(user,parameters[param++],chan,status);
2431                                         }
2432                                         if (r)
2433                                         {
2434                                                 strcat(outlist,"v");
2435                                                 strcpy(outpars[pc++],parameters[param-1]);
2436                                         }
2437                                 break;
2438
2439                                 case 'b':
2440                                         if ((param >= pcnt)) break;
2441                                         if (mdir == 1)
2442                                         {
2443                                                 r = add_ban(user,parameters[param++],chan,status);
2444                                         }
2445                                         else
2446                                         {
2447                                                 r = take_ban(user,parameters[param++],chan,status);
2448                                         }
2449                                         if (r)
2450                                         {
2451                                                 strcat(outlist,"b");
2452                                                 strcpy(outpars[pc++],parameters[param-1]);
2453                                         }
2454                                 break;
2455
2456
2457                                 case 'k':
2458                                         if ((param >= pcnt))
2459                                                 break;
2460
2461                                         if (mdir == 1)
2462                                         {
2463                                                 if (k_set)
2464                                                         break;
2465
2466                                                 if (!strcmp(chan->key,""))
2467                                                 {
2468                                                         strcat(outlist,"k");
2469                                                         char key[MAXBUF];
2470                                                         strcpy(key,parameters[param++]);
2471                                                         if (strlen(key)>32) {
2472                                                                 key[31] = '\0';
2473                                                         }
2474                                                         strcpy(outpars[pc++],key);
2475                                                         strcpy(chan->key,key);
2476                                                         k_set = true;
2477                                                 }
2478                                         }
2479                                         else
2480                                         {
2481                                                 /* checks on -k are case sensitive and only accurate to the
2482                                                    first 32 characters */
2483                                                 char key[MAXBUF];
2484                                                 strcpy(key,parameters[param++]);
2485                                                 if (strlen(key)>32) {
2486                                                         key[31] = '\0';
2487                                                 }
2488                                                 /* only allow -k if correct key given */
2489                                                 if (!strcmp(chan->key,key))
2490                                                 {
2491                                                         strcat(outlist,"k");
2492                                                         strcpy(chan->key,"");
2493                                                         strcpy(outpars[pc++],key);
2494                                                 }
2495                                         }
2496                                 break;
2497
2498                                 case 'l':
2499                                         if (mdir == 0)
2500                                         {
2501                                                 if (chan->limit)
2502                                                 {
2503                                                         strcat(outlist,"l");
2504                                                         chan->limit = 0;
2505                                                 }
2506                                         }
2507
2508                                         if ((param >= pcnt)) break;
2509                                         if (mdir == 1)
2510                                         {
2511                                                 if (l_set)
2512                                                         break;
2513
2514                                                 bool invalid = false;
2515                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2516                                                 {
2517                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2518                                                         {
2519                                                                 invalid = true;
2520                                                         }
2521                                                 }
2522                                                 if (atoi(parameters[param]) < 1)
2523                                                 {
2524                                                         invalid = true;
2525                                                 }
2526
2527                                                 if (invalid)
2528                                                         break;
2529
2530                                                 chan->limit = atoi(parameters[param]);
2531                                                 if (chan->limit)
2532                                                 {
2533                                                         strcat(outlist,"l");
2534                                                         strcpy(outpars[pc++],parameters[param++]);
2535                                                         l_set = true;
2536                                                 }
2537                                         }
2538                                 break;
2539
2540                                 case 'i':
2541                                         if (chan->inviteonly != mdir)
2542                                         {
2543                                                 strcat(outlist,"i");
2544                                         }
2545                                         chan->inviteonly = mdir;
2546                                 break;
2547
2548                                 case 't':
2549                                         if (chan->topiclock != mdir)
2550                                         {
2551                                                 strcat(outlist,"t");
2552                                         }
2553                                         chan->topiclock = mdir;
2554                                 break;
2555
2556                                 case 'n':
2557                                         if (chan->noexternal != mdir)
2558                                         {
2559                                                 strcat(outlist,"n");
2560                                         }
2561                                         chan->noexternal = mdir;
2562                                 break;
2563
2564                                 case 'm':
2565                                         if (chan->moderated != mdir)
2566                                         {
2567                                                 strcat(outlist,"m");
2568                                         }
2569                                         chan->moderated = mdir;
2570                                 break;
2571
2572                                 case 's':
2573                                         if (chan->secret != mdir)
2574                                         {
2575                                                 strcat(outlist,"s");
2576                                                 if (chan->c_private)
2577                                                 {
2578                                                         chan->c_private = 0;
2579                                                         if (mdir)
2580                                                         {
2581                                                                 strcat(outlist,"-p+");
2582                                                         }
2583                                                         else
2584                                                         {
2585                                                                 strcat(outlist,"+p-");
2586                                                         }
2587                                                 }
2588                                         }
2589                                         chan->secret = mdir;
2590                                 break;
2591
2592                                 case 'p':
2593                                         if (chan->c_private != mdir)
2594                                         {
2595                                                 strcat(outlist,"p");
2596                                                 if (chan->secret)
2597                                                 {
2598                                                         chan->secret = 0;
2599                                                         if (mdir)
2600                                                         {
2601                                                                 strcat(outlist,"-s+");
2602                                                         }
2603                                                         else
2604                                                         {
2605                                                                 strcat(outlist,"+s-");
2606                                                         }
2607                                                 }
2608                                         }
2609                                         chan->c_private = mdir;
2610                                 break;
2611
2612                                 default:
2613                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2614                                         string_list p;
2615                                         p.clear();
2616                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2617                                         {
2618                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2619                                                 break;
2620                                         }
2621                                         if (ModeDefined(modechar,MT_CHANNEL))
2622                                         {
2623                                                 log(DEBUG,"A module has claimed this mode");
2624                                                 if (param<pcnt)
2625                                                 {
2626                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2627                                                         {
2628                                                                 p.push_back(parameters[param]);
2629                                                         }
2630                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2631                                                         {
2632                                                                 p.push_back(parameters[param]);
2633                                                         }
2634                                                 }
2635                                                 bool handled = false;
2636                                                 if (param>=pcnt)
2637                                                 {
2638                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2639                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2640                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2641                                                         {
2642                                                                 handled = true;
2643                                                                 param++;
2644                                                         }
2645                                                 }
2646                                                 for (int i = 0; i <= MODCOUNT; i++)
2647                                                 {
2648                                                         if (!handled)
2649                                                         {
2650                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2651                                                                 {
2652                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2653                                                                         char app[] = {modechar, 0};
2654                                                                         if (ptr>0)
2655                                                                         {
2656                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2657                                                                                 {
2658                                                                                         strcat(outlist, app);
2659                                                                                 }
2660                                                                                 else if (!strchr(outlist,modechar))
2661                                                                                 {
2662                                                                                         strcat(outlist, app);
2663                                                                                 }
2664                                                                         }
2665                                                                         chan->SetCustomMode(modechar,mdir);
2666                                                                         // include parameters in output if mode has them
2667                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2668                                                                         {
2669                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2670                                                                                 strcpy(outpars[pc++],parameters[param++]);
2671                                                                         }
2672                                                                         // break, because only one module can handle the mode.
2673                                                                         handled = true;
2674                                                                 }
2675                                                         }
2676                                                 }
2677                                         }
2678                                 break;
2679
2680                         }
2681                 }
2682         }
2683
2684         /* this ensures only the *valid* modes are sent out onto the network */
2685         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2686         {
2687                 outlist[strlen(outlist)-1] = '\0';
2688         }
2689         if (strcmp(outlist,""))
2690         {
2691                 strcpy(outstr,outlist);
2692                 for (ptr = 0; ptr < pc; ptr++)
2693                 {
2694                         strcat(outstr," ");
2695                         strcat(outstr,outpars[ptr]);
2696                 }
2697                 if (local)
2698                 {
2699                         log(DEBUG,"Local mode change");
2700                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2701                 }
2702                 else
2703                 {
2704                         if (servermode)
2705                         {
2706                                 if (!silent)
2707                                 {
2708                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2709                                         // M token for a usermode must go to all servers
2710                                         char buffer[MAXBUF];
2711                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2712                                         NetSendToAll(buffer);
2713                                 }
2714
2715                         }
2716                         else
2717                         {
2718                                 if (!silent)
2719                                 {
2720                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2721                                         // M token for a usermode must go to all servers
2722                                         char buffer[MAXBUF];
2723                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2724                                         NetSendToAll(buffer);
2725                                 }
2726                         }
2727                 }
2728         }
2729 }
2730
2731 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2732
2733 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2734 {
2735         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2736         // RFC1459 specified modes
2737         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2738         {
2739                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2740                 return true;
2741         }
2742
2743         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2744         if ((strchr(sourcemodes,'o')) && (!adding))
2745         {
2746                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2747                 return true;
2748         }
2749         else if (umode == 'o')
2750         {
2751                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2752                 return false;
2753         }
2754
2755         // process any module-defined modes that need oper
2756         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2757         {
2758                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2759                 return true;
2760         }
2761         else
2762         if (ModeDefined(umode,MT_CLIENT))
2763         {
2764                 // process any module-defined modes that don't need oper
2765                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2766                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2767                 {
2768                         // no, this mode needs oper, and this user 'aint got what it takes!
2769                         return false;
2770                 }
2771                 return true;
2772         }
2773
2774         // anything else - return false.
2775         log(DEBUG,"umode %c not known by any ruleset",umode);
2776         return false;
2777 }
2778
2779 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2780 {
2781         userrec* s2;
2782         bool faked = false;
2783         if (!source)
2784         {
2785                 s2 = new userrec;
2786                 strncpy(s2->nick,ServerName,NICKMAX);
2787                 strcpy(s2->modes,"o");
2788                 s2->fd = -1;
2789                 source = s2;
2790                 faked = true;
2791         }
2792         string_list p;
2793         p.clear();
2794         if (ModeDefined(umode,MT_CLIENT))
2795         {
2796                 for (int i = 0; i <= MODCOUNT; i++)
2797                 {
2798                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2799                         {
2800                                 log(DEBUG,"Module claims umode %c",umode);
2801                                 return true;
2802                         }
2803                 }
2804                 log(DEBUG,"No module claims umode %c",umode);
2805                 if (faked)
2806                 {
2807                         delete s2;
2808                         source = NULL;
2809                 }
2810                 return false;
2811         }
2812         else
2813         {
2814                 log(DEBUG,"*** BUG *** Non-module umode passed to process_module_umode!");
2815                 if (faked)
2816                 {
2817                         delete s2;
2818                         source = NULL;
2819                 }
2820                 return false;
2821         }
2822 }
2823
2824 void handle_mode(char **parameters, int pcnt, userrec *user)
2825 {
2826         chanrec* Ptr;
2827         userrec* dest;
2828         int can_change,i;
2829         int direction = 1;
2830         char outpars[MAXBUF];
2831
2832         dest = Find(parameters[0]);
2833
2834         if (!user)
2835         {
2836                 return;
2837         }
2838
2839         if ((dest) && (pcnt == 1))
2840         {
2841                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2842                 return;
2843         }
2844
2845         if ((dest) && (pcnt > 1))
2846         {
2847                 char dmodes[MAXBUF];
2848                 strncpy(dmodes,dest->modes,MAXBUF);
2849                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2850
2851                 can_change = 0;
2852                 if (user != dest)
2853                 {
2854                         if (strchr(user->modes,'o'))
2855                         {
2856                                 can_change = 1;
2857                         }
2858                 }
2859                 else
2860                 {
2861                         can_change = 1;
2862                 }
2863                 if (!can_change)
2864                 {
2865                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2866                         return;
2867                 }
2868
2869                 strcpy(outpars,"+");
2870                 direction = 1;
2871
2872                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2873                         return;
2874
2875                 for (int i = 0; i < strlen(parameters[1]); i++)
2876                 {
2877                         if (parameters[1][i] == '+')
2878                         {
2879                                 if (direction != 1)
2880                                 {
2881                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2882                                         {
2883                                                 outpars[strlen(outpars)-1] = '+';
2884                                         }
2885                                         else
2886                                         {
2887                                                 strcat(outpars,"+");
2888                                         }
2889                                 }
2890                                 direction = 1;
2891                         }
2892                         else
2893                         if (parameters[1][i] == '-')
2894                         {
2895                                 if (direction != 0)
2896                                 {
2897                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2898                                         {
2899                                                 outpars[strlen(outpars)-1] = '-';
2900                                         }
2901                                         else
2902                                         {
2903                                                 strcat(outpars,"-");
2904                                         }
2905                                 }
2906                                 direction = 0;
2907                         }
2908                         else
2909                         {
2910                                 can_change = 0;
2911                                 if (strchr(user->modes,'o'))
2912                                 {
2913                                         can_change = 1;
2914                                 }
2915                                 else
2916                                 {
2917                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2918                                         {
2919                                                 can_change = 1;
2920                                         }
2921                                 }
2922                                 if (can_change)
2923                                 {
2924                                         if (direction == 1)
2925                                         {
2926                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2927                                                 {
2928                                                         char umode = parameters[1][i];
2929                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2930                                                         {
2931                                                                 dmodes[strlen(dmodes)+1]='\0';
2932                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2933                                                                 outpars[strlen(outpars)+1]='\0';
2934                                                                 outpars[strlen(outpars)] = parameters[1][i];
2935                                                         }
2936                                                 }
2937                                         }
2938                                         else
2939                                         {
2940                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2941                                                 {
2942                                                         char umode = parameters[1][i];
2943                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2944                                                         {
2945                                                                 int q = 0;
2946                                                                 char temp[MAXBUF];
2947                                                                 char moo[MAXBUF];
2948
2949                                                                 outpars[strlen(outpars)+1]='\0';
2950                                                                 outpars[strlen(outpars)] = parameters[1][i];
2951
2952                                                                 strcpy(temp,"");
2953                                                                 for (q = 0; q < strlen(dmodes); q++)
2954                                                                 {
2955                                                                         if (dmodes[q] != parameters[1][i])
2956                                                                         {
2957                                                                                 moo[0] = dmodes[q];
2958                                                                                 moo[1] = '\0';
2959                                                                                 strcat(temp,moo);
2960                                                                         }
2961                                                                 }
2962                                                                 strcpy(dmodes,temp);
2963                                                         }
2964                                                 }
2965                                         }
2966                                 }
2967                         }
2968                 }
2969                 if (strlen(outpars))
2970                 {
2971                         char b[MAXBUF];
2972                         strcpy(b,"");
2973                         int z = 0;
2974                         int i = 0;
2975                         while (i < strlen (outpars))
2976                         {
2977                                 b[z++] = outpars[i++];
2978                                 b[z] = '\0';
2979                                 if (i<strlen(outpars)-1)
2980                                 {
2981                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
2982                                         {
2983                                                 // someones playing silly buggers and trying
2984                                                 // to put a +- or -+ into the line...
2985                                                 i++;
2986                                         }
2987                                 }
2988                                 if (i == strlen(outpars)-1)
2989                                 {
2990                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
2991                                         {
2992                                                 i++;
2993                                         }
2994                                 }
2995                         }
2996
2997                         z = strlen(b)-1;
2998                         if ((b[z] == '-') || (b[z] == '+'))
2999                                 b[z] == '\0';
3000
3001                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3002                                 return;
3003
3004                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3005
3006                         // M token for a usermode must go to all servers
3007                         char buffer[MAXBUF];
3008                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3009                         NetSendToAll(buffer);
3010
3011                         if (strlen(dmodes)>MAXMODES)
3012                         {
3013                                 dmodes[MAXMODES-1] = '\0';
3014                         }
3015                         log(DEBUG,"Stripped mode line");
3016                         log(DEBUG,"Line dest is now %s",dmodes);
3017                         strncpy(dest->modes,dmodes,MAXMODES);
3018
3019                 }
3020
3021                 return;
3022         }
3023
3024         Ptr = FindChan(parameters[0]);
3025         if (Ptr)
3026         {
3027                 if (pcnt == 1)
3028                 {
3029                         /* just /modes #channel */
3030                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
3031                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
3032                         return;
3033                 }
3034                 else
3035                 if (pcnt == 2)
3036                 {
3037                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
3038                         {
3039
3040                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
3041                                 {
3042                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
3043                                 }
3044                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
3045                                 return;
3046                         }
3047                 }
3048
3049                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3050                 {
3051                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
3052                         return;
3053                 }
3054
3055                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3056         }
3057         else
3058         {
3059                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3060         }
3061 }
3062
3063
3064
3065
3066 void server_mode(char **parameters, int pcnt, userrec *user)
3067 {
3068         chanrec* Ptr;
3069         userrec* dest;
3070         int can_change,i;
3071         int direction = 1;
3072         char outpars[MAXBUF];
3073
3074         dest = Find(parameters[0]);
3075
3076         // fix: ChroNiCk found this - we cant use this as debug if its null!
3077         if (dest)
3078         {
3079                 log(DEBUG,"server_mode on %s",dest->nick);
3080         }
3081
3082         if ((dest) && (pcnt > 1))
3083         {
3084                 log(DEBUG,"params > 1");
3085
3086                 char dmodes[MAXBUF];
3087                 strncpy(dmodes,dest->modes,MAXBUF);
3088
3089                 strcpy(outpars,"+");
3090                 direction = 1;
3091
3092                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3093                         return;
3094
3095                 for (int i = 0; i < strlen(parameters[1]); i++)
3096                 {
3097                         if (parameters[1][i] == '+')
3098                         {
3099                                 if (direction != 1)
3100                                 {
3101                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3102                                         {
3103                                                 outpars[strlen(outpars)-1] = '+';
3104                                         }
3105                                         else
3106                                         {
3107                                                 strcat(outpars,"+");
3108                                         }
3109                                 }
3110                                 direction = 1;
3111                         }
3112                         else
3113                         if (parameters[1][i] == '-')
3114                         {
3115                                 if (direction != 0)
3116                                 {
3117                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3118                                         {
3119                                                 outpars[strlen(outpars)-1] = '-';
3120                                         }
3121                                         else
3122                                         {
3123                                                 strcat(outpars,"-");
3124                                         }
3125                                 }
3126                                 direction = 0;
3127                         }
3128                         else
3129                         {
3130                                 log(DEBUG,"begin mode processing entry");
3131                                 can_change = 1;
3132                                 if (can_change)
3133                                 {
3134                                         if (direction == 1)
3135                                         {
3136                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3137                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3138                                                 {
3139                                                         char umode = parameters[1][i];
3140                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3141                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3142                                                         {
3143                                                                 dmodes[strlen(dmodes)+1]='\0';
3144                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3145                                                                 outpars[strlen(outpars)+1]='\0';
3146                                                                 outpars[strlen(outpars)] = parameters[1][i];
3147                                                         }
3148                                                 }
3149                                         }
3150                                         else
3151                                         {
3152                                                 // can only remove a mode they already have
3153                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3154                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3155                                                 {
3156                                                         char umode = parameters[1][i];
3157                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3158                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3159                                                         {
3160                                                                 int q = 0;
3161                                                                 char temp[MAXBUF];
3162                                                                 char moo[MAXBUF];
3163
3164                                                                 outpars[strlen(outpars)+1]='\0';
3165                                                                 outpars[strlen(outpars)] = parameters[1][i];
3166
3167                                                                 strcpy(temp,"");
3168                                                                 for (q = 0; q < strlen(dmodes); q++)
3169                                                                 {
3170                                                                         if (dmodes[q] != parameters[1][i])
3171                                                                         {
3172                                                                                 moo[0] = dmodes[q];
3173                                                                                 moo[1] = '\0';
3174                                                                                 strcat(temp,moo);
3175                                                                         }
3176                                                                 }
3177                                                                 strcpy(dmodes,temp);
3178                                                         }
3179                                                 }
3180                                         }
3181                                 }
3182                         }
3183                 }
3184                 if (strlen(outpars))
3185                 {
3186                         char b[MAXBUF];
3187                         strcpy(b,"");
3188                         int z = 0;
3189                         int i = 0;
3190                         while (i < strlen (outpars))
3191                         {
3192                                 b[z++] = outpars[i++];
3193                                 b[z] = '\0';
3194                                 if (i<strlen(outpars)-1)
3195                                 {
3196                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3197                                         {
3198                                                 // someones playing silly buggers and trying
3199                                                 // to put a +- or -+ into the line...
3200                                                 i++;
3201                                         }
3202                                 }
3203                                 if (i == strlen(outpars)-1)
3204                                 {
3205                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3206                                         {
3207                                                 i++;
3208                                         }
3209                                 }
3210                         }
3211
3212                         z = strlen(b)-1;
3213                         if ((b[z] == '-') || (b[z] == '+'))
3214                                 b[z] == '\0';
3215
3216                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3217                                 return;
3218
3219                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3220
3221                         // M token for a usermode must go to all servers
3222                         char buffer[MAXBUF];
3223                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3224                         NetSendToAll(buffer);
3225
3226                         if (strlen(dmodes)>MAXMODES)
3227                         {
3228                                 dmodes[MAXMODES-1] = '\0';
3229                         }
3230                         log(DEBUG,"Stripped mode line");
3231                         log(DEBUG,"Line dest is now %s",dmodes);
3232                         strncpy(dest->modes,dmodes,MAXMODES);
3233
3234                 }
3235
3236                 return;
3237         }
3238
3239         Ptr = FindChan(parameters[0]);
3240         if (Ptr)
3241         {
3242                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3243         }
3244         else
3245         {
3246                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3247         }
3248 }
3249
3250
3251
3252 void merge_mode(char **parameters, int pcnt)
3253 {
3254         chanrec* Ptr;
3255         userrec* dest;
3256         int can_change,i;
3257         int direction = 1;
3258         char outpars[MAXBUF];
3259
3260         dest = Find(parameters[0]);
3261
3262         // fix: ChroNiCk found this - we cant use this as debug if its null!
3263         if (dest)
3264         {
3265                 log(DEBUG,"merge_mode on %s",dest->nick);
3266         }
3267
3268         if ((dest) && (pcnt > 1))
3269         {
3270                 log(DEBUG,"params > 1");
3271
3272                 char dmodes[MAXBUF];
3273                 strncpy(dmodes,dest->modes,MAXBUF);
3274
3275                 strcpy(outpars,"+");
3276                 direction = 1;
3277
3278                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3279                         return;
3280
3281                 for (int i = 0; i < strlen(parameters[1]); i++)
3282                 {
3283                         if (parameters[1][i] == '+')
3284                         {
3285                                 if (direction != 1)
3286                                 {
3287                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3288                                         {
3289                                                 outpars[strlen(outpars)-1] = '+';
3290                                         }
3291                                         else
3292                                         {
3293                                                 strcat(outpars,"+");
3294                                         }
3295                                 }
3296                                 direction = 1;
3297                         }
3298                         else
3299                         if (parameters[1][i] == '-')
3300                         {
3301                                 if (direction != 0)
3302                                 {
3303                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3304                                         {
3305                                                 outpars[strlen(outpars)-1] = '-';
3306                                         }
3307                                         else
3308                                         {
3309                                                 strcat(outpars,"-");
3310                                         }
3311                                 }
3312                                 direction = 0;
3313                         }
3314                         else
3315                         {
3316                                 log(DEBUG,"begin mode processing entry");
3317                                 can_change = 1;
3318                                 if (can_change)
3319                                 {
3320                                         if (direction == 1)
3321                                         {
3322                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3323                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3324                                                 {
3325                                                         char umode = parameters[1][i];
3326                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3327                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3328                                                         {
3329                                                                 dmodes[strlen(dmodes)+1]='\0';
3330                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3331                                                                 outpars[strlen(outpars)+1]='\0';
3332                                                                 outpars[strlen(outpars)] = parameters[1][i];
3333                                                         }
3334                                                 }
3335                                         }
3336                                         else
3337                                         {
3338                                                 // can only remove a mode they already have
3339                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3340                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3341                                                 {
3342                                                         char umode = parameters[1][i];
3343                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3344                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3345                                                         {
3346                                                                 int q = 0;
3347                                                                 char temp[MAXBUF];
3348                                                                 char moo[MAXBUF];
3349
3350                                                                 outpars[strlen(outpars)+1]='\0';
3351                                                                 outpars[strlen(outpars)] = parameters[1][i];
3352
3353                                                                 strcpy(temp,"");
3354                                                                 for (q = 0; q < strlen(dmodes); q++)
3355                                                                 {
3356                                                                         if (dmodes[q] != parameters[1][i])
3357                                                                         {
3358                                                                                 moo[0] = dmodes[q];
3359                                                                                 moo[1] = '\0';
3360                                                                                 strcat(temp,moo);
3361                                                                         }
3362                                                                 }
3363                                                                 strcpy(dmodes,temp);
3364                                                         }
3365                                                 }
3366                                         }
3367                                 }
3368                         }
3369                 }
3370                 if (strlen(outpars))
3371                 {
3372                         char b[MAXBUF];
3373                         strcpy(b,"");
3374                         int z = 0;
3375                         int i = 0;
3376                         while (i < strlen (outpars))
3377                         {
3378                                 b[z++] = outpars[i++];
3379                                 b[z] = '\0';
3380                                 if (i<strlen(outpars)-1)
3381                                 {
3382                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3383                                         {
3384                                                 // someones playing silly buggers and trying
3385                                                 // to put a +- or -+ into the line...
3386                                                 i++;
3387                                         }
3388                                 }
3389                                 if (i == strlen(outpars)-1)
3390                                 {
3391                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3392                                         {
3393                                                 i++;
3394                                         }
3395                                 }
3396                         }
3397
3398                         z = strlen(b)-1;
3399                         if ((b[z] == '-') || (b[z] == '+'))
3400                                 b[z] == '\0';
3401
3402                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3403                                 return;
3404
3405                         if (strlen(dmodes)>MAXMODES)
3406                         {
3407                                 dmodes[MAXMODES-1] = '\0';
3408                         }
3409                         log(DEBUG,"Stripped mode line");
3410                         log(DEBUG,"Line dest is now %s",dmodes);
3411                         strncpy(dest->modes,dmodes,MAXMODES);
3412
3413                 }
3414
3415                 return;
3416         }
3417
3418         Ptr = FindChan(parameters[0]);
3419         if (Ptr)
3420         {
3421                 userrec s2;
3422                 strncpy(s2.nick,ServerName,NICKMAX);
3423                 strcpy(s2.modes,"o");
3424                 s2.fd = -1;
3425                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3426         }
3427 }
3428
3429
3430 void merge_mode2(char **parameters, int pcnt, userrec* user)
3431 {
3432         chanrec* Ptr;
3433         userrec* dest;
3434         int can_change,i;
3435         int direction = 1;
3436         char outpars[MAXBUF];
3437
3438         dest = Find(parameters[0]);
3439
3440         // fix: ChroNiCk found this - we cant use this as debug if its null!
3441         if (dest)
3442         {
3443                 log(DEBUG,"merge_mode on %s",dest->nick);
3444         }
3445
3446         if ((dest) && (pcnt > 1))
3447         {
3448                 log(DEBUG,"params > 1");
3449
3450                 char dmodes[MAXBUF];
3451                 strncpy(dmodes,dest->modes,MAXBUF);
3452
3453                 strcpy(outpars,"+");
3454                 direction = 1;
3455
3456                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3457                         return;
3458
3459                 for (int i = 0; i < strlen(parameters[1]); i++)
3460                 {
3461                         if (parameters[1][i] == '+')
3462                         {
3463                                 if (direction != 1)
3464                                 {
3465                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3466                                         {
3467                                                 outpars[strlen(outpars)-1] = '+';
3468                                         }
3469                                         else
3470                                         {
3471                                                 strcat(outpars,"+");
3472                                         }
3473                                 }
3474                                 direction = 1;
3475                         }
3476                         else
3477                         if (parameters[1][i] == '-')
3478                         {
3479                                 if (direction != 0)
3480                                 {
3481                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3482                                         {
3483                                                 outpars[strlen(outpars)-1] = '-';
3484                                         }
3485                                         else
3486                                         {
3487                                                 strcat(outpars,"-");
3488                                         }
3489                                 }
3490                                 direction = 0;
3491                         }
3492                         else
3493                         {
3494                                 log(DEBUG,"begin mode processing entry");
3495                                 can_change = 1;
3496                                 if (can_change)
3497                                 {
3498                                         if (direction == 1)
3499                                         {
3500                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3501                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3502                                                 {
3503                                                         char umode = parameters[1][i];
3504                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3505                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3506                                                         {
3507                                                                 dmodes[strlen(dmodes)+1]='\0';
3508                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3509                                                                 outpars[strlen(outpars)+1]='\0';
3510                                                                 outpars[strlen(outpars)] = parameters[1][i];
3511                                                         }
3512                                                 }
3513                                         }
3514                                         else
3515                                         {
3516                                                 // can only remove a mode they already have
3517                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3518                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3519                                                 {
3520                                                         char umode = parameters[1][i];
3521                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3522                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3523                                                         {
3524                                                                 int q = 0;
3525                                                                 char temp[MAXBUF];
3526                                                                 char moo[MAXBUF];
3527
3528                                                                 outpars[strlen(outpars)+1]='\0';
3529                                                                 outpars[strlen(outpars)] = parameters[1][i];
3530
3531                                                                 strcpy(temp,"");
3532                                                                 for (q = 0; q < strlen(dmodes); q++)
3533                                                                 {
3534                                                                         if (dmodes[q] != parameters[1][i])
3535                                                                         {
3536                                                                                 moo[0] = dmodes[q];
3537                                                                                 moo[1] = '\0';
3538                                                                                 strcat(temp,moo);
3539                                                                         }
3540                                                                 }
3541                                                                 strcpy(dmodes,temp);
3542                                                         }
3543                                                 }
3544                                         }
3545                                 }
3546                         }
3547                 }
3548                 if (strlen(outpars))
3549                 {
3550                         char b[MAXBUF];
3551                         strcpy(b,"");
3552                         int z = 0;
3553                         int i = 0;
3554                         while (i < strlen (outpars))
3555                         {
3556                                 b[z++] = outpars[i++];
3557                                 b[z] = '\0';
3558                                 if (i<strlen(outpars)-1)
3559                                 {
3560                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3561                                         {
3562                                                 // someones playing silly buggers and trying
3563                                                 // to put a +- or -+ into the line...
3564                                                 i++;
3565                                         }
3566                                 }
3567                                 if (i == strlen(outpars)-1)
3568                                 {
3569                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3570                                         {
3571                                                 i++;
3572                                         }
3573                                 }
3574                         }
3575
3576                         z = strlen(b)-1;
3577                         if ((b[z] == '-') || (b[z] == '+'))
3578                                 b[z] == '\0';
3579
3580                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3581                                 return;
3582
3583                         WriteTo(user,dest,"MODE :%s",b);
3584
3585                         if (strlen(dmodes)>MAXMODES)
3586                         {
3587                                 dmodes[MAXMODES-1] = '\0';
3588                         }
3589                         log(DEBUG,"Stripped mode line");
3590                         log(DEBUG,"Line dest is now %s",dmodes);
3591                         strncpy(dest->modes,dmodes,MAXMODES);
3592
3593                 }
3594
3595                 return;
3596         }
3597
3598         Ptr = FindChan(parameters[0]);
3599         if (Ptr)
3600         {
3601                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3602                 {
3603                         return;
3604                 }
3605
3606                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3607         }
3608 }
3609
3610
3611
3612 /* This function pokes and hacks at a parameter list like the following:
3613  *
3614  * PART #winbot, #darkgalaxy :m00!
3615  *
3616  * to turn it into a series of individual calls like this:
3617  *
3618  * PART #winbot :m00!
3619  * PART #darkgalaxy :m00!
3620  *
3621  * The seperate calls are sent to a callback function provided by the caller
3622  * (the caller will usually call itself recursively). The callback function
3623  * must be a command handler. Calling this function on a line with no list causes
3624  * no action to be taken. You must provide a starting and ending parameter number
3625  * where the range of the list can be found, useful if you have a terminating
3626  * parameter as above which is actually not part of the list, or parameters
3627  * before the actual list as well. This code is used by many functions which
3628  * can function as "one to list" (see the RFC) */
3629
3630 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3631 {
3632         char plist[MAXBUF];
3633         char *param;
3634         char *pars[32];
3635         char blog[32][MAXBUF];
3636         char blog2[32][MAXBUF];
3637         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3638         char keystr[MAXBUF];
3639         char moo[MAXBUF];
3640
3641         for (int i = 0; i <32; i++)
3642                 strcpy(blog[i],"");
3643
3644         for (int i = 0; i <32; i++)
3645                 strcpy(blog2[i],"");
3646
3647         strcpy(moo,"");
3648         for (int i = 0; i <10; i++)
3649         {
3650                 if (!parameters[i])
3651                 {
3652                         parameters[i] = moo;
3653                 }
3654         }
3655         if (joins)
3656         {
3657                 if (pcnt > 1) /* we have a key to copy */
3658                 {
3659                         strcpy(keystr,parameters[1]);
3660                 }
3661         }
3662
3663         if (!parameters[start])
3664         {
3665                 return 0;
3666         }
3667         if (!strchr(parameters[start],','))
3668         {
3669                 return 0;
3670         }
3671         strcpy(plist,"");
3672         for (int i = start; i <= end; i++)
3673         {
3674                 if (parameters[i])
3675                 {
3676                         strcat(plist,parameters[i]);
3677                 }
3678         }
3679
3680         j = 0;
3681         param = plist;
3682
3683         t = strlen(plist);
3684         for (int i = 0; i < t; i++)
3685         {
3686                 if (plist[i] == ',')
3687                 {
3688                         plist[i] = '\0';
3689                         strcpy(blog[j++],param);
3690                         param = plist+i+1;
3691                         if (j>20)
3692                         {
3693                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3694                                 return 1;
3695                         }
3696                 }
3697         }
3698         strcpy(blog[j++],param);
3699         total = j;
3700
3701         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3702         {
3703                 strcat(keystr,",");
3704         }
3705
3706         if ((joins) && (keystr))
3707         {
3708                 if (strchr(keystr,','))
3709                 {
3710                         j = 0;
3711                         param = keystr;
3712                         t2 = strlen(keystr);
3713                         for (int i = 0; i < t2; i++)
3714                         {
3715                                 if (keystr[i] == ',')
3716                                 {
3717                                         keystr[i] = '\0';
3718                                         strcpy(blog2[j++],param);
3719                                         param = keystr+i+1;
3720                                 }
3721                         }
3722                         strcpy(blog2[j++],param);
3723                         total2 = j;
3724                 }
3725         }
3726
3727         for (j = 0; j < total; j++)
3728         {
3729                 if (blog[j])
3730                 {
3731                         pars[0] = blog[j];
3732                 }
3733                 for (q = end; q < pcnt-1; q++)
3734                 {
3735                         if (parameters[q+1])
3736                         {
3737                                 pars[q-end+1] = parameters[q+1];
3738                         }
3739                 }
3740                 if ((joins) && (parameters[1]))
3741                 {
3742                         if (pcnt > 1)
3743                         {
3744                                 pars[1] = blog2[j];
3745                         }
3746                         else
3747                         {
3748                                 pars[1] = NULL;
3749                         }
3750                 }
3751                 /* repeatedly call the function with the hacked parameter list */
3752                 if ((joins) && (pcnt > 1))
3753                 {
3754                         if (pars[1])
3755                         {
3756                                 // pars[1] already set up and containing key from blog2[j]
3757                                 fn(pars,2,u);
3758                         }
3759                         else
3760                         {
3761                                 pars[1] = parameters[1];
3762                                 fn(pars,2,u);
3763                         }
3764                 }
3765                 else
3766                 {
3767                         fn(pars,pcnt-(end-start),u);
3768                 }
3769         }
3770
3771         return 1;
3772 }
3773
3774
3775 void handle_join(char **parameters, int pcnt, userrec *user)
3776 {
3777         chanrec* Ptr;
3778         int i = 0;
3779
3780         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3781                 return;
3782         if (parameters[0][0] == '#')
3783         {
3784                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3785         }
3786 }
3787
3788
3789 void handle_part(char **parameters, int pcnt, userrec *user)
3790 {
3791         chanrec* Ptr;
3792
3793         if (pcnt > 1)
3794         {
3795                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3796                         return;
3797                 del_channel(user,parameters[0],parameters[1],false);
3798         }
3799         else
3800         {
3801                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3802                         return;
3803                 del_channel(user,parameters[0],NULL,false);
3804         }
3805 }
3806
3807 void handle_kick(char **parameters, int pcnt, userrec *user)
3808 {
3809         chanrec* Ptr = FindChan(parameters[0]);
3810         userrec* u   = Find(parameters[1]);
3811
3812         if ((!u) || (!Ptr))
3813         {
3814                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3815                 return;
3816         }
3817
3818         if (!has_channel(u,Ptr))
3819         {
3820                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3821                 return;
3822         }
3823
3824         char reason[MAXBUF];
3825
3826         if (pcnt > 2)
3827         {
3828                 strncpy(reason,parameters[2],MAXBUF);
3829                 if (strlen(reason)>MAXKICK)
3830                 {
3831                         reason[MAXKICK-1] = '\0';
3832                 }
3833
3834                 kick_channel(user,u,Ptr,reason);
3835         }
3836         else
3837         {
3838                 strcpy(reason,user->nick);
3839                 kick_channel(user,u,Ptr,reason);
3840         }
3841
3842         // this must be propogated so that channel membership is kept in step network-wide
3843
3844         char buffer[MAXBUF];
3845         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3846         NetSendToAll(buffer);
3847 }
3848
3849
3850 void handle_die(char **parameters, int pcnt, userrec *user)
3851 {
3852         log(DEBUG,"die: %s",user->nick);
3853         if (!strcmp(parameters[0],diepass))
3854         {
3855                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3856                 sleep(DieDelay);
3857                 Exit(ERROR);
3858         }
3859         else
3860         {
3861                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3862         }
3863 }
3864
3865 void handle_restart(char **parameters, int pcnt, userrec *user)
3866 {
3867         log(DEBUG,"restart: %s",user->nick);
3868         if (!strcmp(parameters[0],restartpass))
3869         {
3870                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3871                 sleep(DieDelay);
3872                 Exit(ERROR);
3873                 /* Will finish this later when i can be arsed :) */
3874         }
3875         else
3876         {
3877                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3878         }
3879 }
3880
3881
3882 void kill_link(userrec *user,const char* r)
3883 {
3884         user_hash::iterator iter = clientlist.find(user->nick);
3885
3886         char reason[MAXBUF];
3887
3888         strncpy(reason,r,MAXBUF);
3889
3890         if (strlen(reason)>MAXQUIT)
3891         {
3892                 reason[MAXQUIT-1] = '\0';
3893         }
3894
3895         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3896         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3897         log(DEBUG,"closing fd %d",user->fd);
3898
3899         /* bugfix, cant close() a nonblocking socket (sux!) */
3900         if (user->registered == 7) {
3901                 FOREACH_MOD OnUserQuit(user);
3902                 WriteCommonExcept(user,"QUIT :%s",reason);
3903
3904                 // Q token must go to ALL servers!!!
3905                 char buffer[MAXBUF];
3906                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3907                 NetSendToAll(buffer);
3908         }
3909
3910         /* push the socket on a stack of sockets due to be closed at the next opportunity
3911          * 'Client exited' is an exception to this as it means the client side has already
3912          * closed the socket, we don't need to do it.
3913          */
3914         fd_reap.push_back(user->fd);
3915
3916         bool do_purge = false;
3917
3918         if (user->registered == 7) {
3919                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3920                 AddWhoWas(user);
3921         }
3922
3923         if (iter != clientlist.end())
3924         {
3925                 log(DEBUG,"deleting user hash value %d",iter->second);
3926                 if ((iter->second) && (user->registered == 7)) {
3927                         delete iter->second;
3928                 }
3929                 clientlist.erase(iter);
3930         }
3931
3932         if (user->registered == 7) {
3933                 purge_empty_chans();
3934         }
3935 }
3936
3937
3938 void handle_kill(char **parameters, int pcnt, userrec *user)
3939 {
3940         userrec *u = Find(parameters[0]);
3941         char killreason[MAXBUF];
3942
3943         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3944         if (u)
3945         {
3946                 if (strcmp(ServerName,u->server))
3947                 {
3948                         // remote kill
3949                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3950                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
3951                         WriteCommonExcept(u,"QUIT :%s",killreason);
3952                         // K token must go to ALL servers!!!
3953                         char buffer[MAXBUF];
3954                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
3955                         NetSendToAll(buffer);
3956
3957                         user_hash::iterator iter = clientlist.find(u->nick);
3958                         if (iter != clientlist.end())
3959                         {
3960                                 log(DEBUG,"deleting user hash value %d",iter->second);
3961                                 if ((iter->second) && (user->registered == 7)) {
3962                                         delete iter->second;
3963                                         }
3964                         clientlist.erase(iter);
3965                         }
3966                         purge_empty_chans();
3967                 }
3968                 else
3969                 {
3970                         // local kill
3971                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
3972                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3973                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
3974                         kill_link(u,killreason);
3975                 }
3976         }
3977         else
3978         {
3979                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3980         }
3981 }
3982
3983 void handle_summon(char **parameters, int pcnt, userrec *user)
3984 {
3985         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
3986 }
3987
3988 void handle_users(char **parameters, int pcnt, userrec *user)
3989 {
3990         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
3991 }
3992
3993
3994 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
3995
3996 char* Passwd(userrec *user)
3997 {
3998         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
3999         {
4000                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
4001                 {
4002                         return i->pass;
4003                 }
4004         }
4005         return "";
4006 }
4007
4008 bool IsDenied(userrec *user)
4009 {
4010         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4011         {
4012                 if (match(user->host,i->host) && (i->type == CC_DENY))
4013                 {
4014                         return true;
4015                 }
4016         }
4017         return false;
4018 }
4019
4020
4021
4022 void handle_pass(char **parameters, int pcnt, userrec *user)
4023 {
4024         // Check to make sure they havnt registered -- Fix by FCS
4025         if (user->registered == 7)
4026         {
4027                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4028                 return;
4029         }
4030         if (!strcasecmp(parameters[0],Passwd(user)))
4031         {
4032                 user->haspassed = true;
4033         }
4034 }
4035
4036 void handle_invite(char **parameters, int pcnt, userrec *user)
4037 {
4038         userrec* u = Find(parameters[0]);
4039         chanrec* c = FindChan(parameters[1]);
4040
4041         if ((!c) || (!u))
4042         {
4043                 if (!c)
4044                 {
4045                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
4046                 }
4047                 else
4048                 {
4049                         if (c->inviteonly)
4050                         {
4051                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4052                         }
4053                 }
4054
4055                 return;
4056         }
4057
4058         if (c->inviteonly)
4059         {
4060                 if (cstatus(user,c) < STATUS_HOP)
4061                 {
4062                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4063                         return;
4064                 }
4065         }
4066         if (has_channel(u,c))
4067         {
4068                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4069                 return;
4070         }
4071         if (!has_channel(user,c))
4072         {
4073                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4074                 return;
4075         }
4076         u->InviteTo(c->name);
4077         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4078         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4079
4080         // i token must go to ALL servers!!!
4081         char buffer[MAXBUF];
4082         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4083         NetSendToAll(buffer);
4084 }
4085
4086 void handle_topic(char **parameters, int pcnt, userrec *user)
4087 {
4088         chanrec* Ptr;
4089
4090         if (pcnt == 1)
4091         {
4092                 if (strlen(parameters[0]) <= CHANMAX)
4093                 {
4094                         Ptr = FindChan(parameters[0]);
4095                         if (Ptr)
4096                         {
4097                                 if (Ptr->topicset)
4098                                 {
4099                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4100                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4101                                 }
4102                                 else
4103                                 {
4104                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4105                                 }
4106                         }
4107                         else
4108                         {
4109                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4110                         }
4111                 }
4112                 return;
4113         }
4114         else if (pcnt>1)
4115         {
4116                 if (strlen(parameters[0]) <= CHANMAX)
4117                 {
4118                         Ptr = FindChan(parameters[0]);
4119                         if (Ptr)
4120                         {
4121                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4122                                 {
4123                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4124                                         return;
4125                                 }
4126
4127                                 char topic[MAXBUF];
4128                                 strncpy(topic,parameters[1],MAXBUF);
4129                                 if (strlen(topic)>MAXTOPIC)
4130                                 {
4131                                         topic[MAXTOPIC-1] = '\0';
4132                                 }
4133
4134                                 strcpy(Ptr->topic,topic);
4135                                 strcpy(Ptr->setby,user->nick);
4136                                 Ptr->topicset = time(NULL);
4137                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4138
4139                                 // t token must go to ALL servers!!!
4140                                 char buffer[MAXBUF];
4141                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4142                                 NetSendToAll(buffer);
4143                         }
4144                         else
4145                         {
4146                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4147                         }
4148                 }
4149         }
4150 }
4151
4152 /* sends out an error notice to all connected clients (not to be used
4153  * lightly!) */
4154
4155 void send_error(char *s)
4156 {
4157         log(DEBUG,"send_error: %s",s);
4158         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4159         {
4160                 if (isnick(i->second->nick))
4161                 {
4162                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4163                 }
4164                 else
4165                 {
4166                         // fix - unregistered connections receive ERROR, not NOTICE
4167                         Write(i->second->fd,"ERROR :%s",s);
4168                 }
4169         }
4170 }
4171
4172 void Error(int status)
4173 {
4174         signal (SIGALRM, SIG_IGN);
4175         signal (SIGPIPE, SIG_IGN);
4176         signal (SIGTERM, SIG_IGN);
4177         signal (SIGABRT, SIG_IGN);
4178         signal (SIGSEGV, SIG_IGN);
4179         signal (SIGURG, SIG_IGN);
4180         signal (SIGKILL, SIG_IGN);
4181         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4182         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4183         exit(status);
4184 }
4185
4186
4187 int main(int argc, char *argv[])
4188 {
4189         Start();
4190         srand(time(NULL));
4191         log(DEBUG,"*** InspIRCd starting up!");
4192         if (!FileExists(CONFIG_FILE))
4193         {
4194                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4195                 log(DEBUG,"main: no config");
4196                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4197                 Exit(ERROR);
4198         }
4199         if (argc > 1) {
4200                 if (!strcmp(argv[1],"-nofork")) {
4201                         nofork = true;
4202                 }
4203         }
4204         if (InspIRCd() == ERROR)
4205         {
4206                 log(DEBUG,"main: daemon function bailed");
4207                 printf("ERROR: could not initialise. Shutting down.\n");
4208                 Exit(ERROR);
4209         }
4210         Exit(TRUE);
4211         return 0;
4212 }
4213
4214 template<typename T> inline string ConvToStr(const T &in)
4215 {
4216         stringstream tmp;
4217         if (!(tmp << in)) return string();
4218         return tmp.str();
4219 }
4220
4221 /* re-allocates a nick in the user_hash after they change nicknames,
4222  * returns a pointer to the new user as it may have moved */
4223
4224 userrec* ReHashNick(char* Old, char* New)
4225 {
4226         user_hash::iterator newnick;
4227         user_hash::iterator oldnick = clientlist.find(Old);
4228
4229         log(DEBUG,"ReHashNick: %s %s",Old,New);
4230
4231         if (!strcasecmp(Old,New))
4232         {
4233                 log(DEBUG,"old nick is new nick, skipping");
4234                 return oldnick->second;
4235         }
4236
4237         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4238
4239         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4240
4241         clientlist[New] = new userrec();
4242         clientlist[New] = oldnick->second;
4243         /*delete oldnick->second; */
4244         clientlist.erase(oldnick);
4245
4246         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4247
4248         return clientlist[New];
4249 }
4250
4251 /* adds or updates an entry in the whowas list */
4252 void AddWhoWas(userrec* u)
4253 {
4254         user_hash::iterator iter = whowas.find(u->nick);
4255         userrec *a = new userrec();
4256         strcpy(a->nick,u->nick);
4257         strcpy(a->ident,u->ident);
4258         strcpy(a->dhost,u->dhost);
4259         strcpy(a->host,u->host);
4260         strcpy(a->fullname,u->fullname);
4261         strcpy(a->server,u->server);
4262         a->signon = u->signon;
4263
4264         /* MAX_WHOWAS:   max number of /WHOWAS items
4265          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4266          *               can be replaced by a newer one
4267          */
4268
4269         if (iter == whowas.end())
4270         {
4271                 if (whowas.size() == WHOWAS_MAX)
4272                 {
4273                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4274                         {
4275                                 // 3600 seconds in an hour ;)
4276                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4277                                 {
4278                                         delete i->second;
4279                                         i->second = a;
4280                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4281                                         return;
4282                                 }
4283                         }
4284                 }
4285                 else
4286                 {
4287                         log(DEBUG,"added fresh WHOWAS entry");
4288                         whowas[a->nick] = a;
4289                 }
4290         }
4291         else
4292         {
4293                 log(DEBUG,"updated WHOWAS entry");
4294                 delete iter->second;
4295                 iter->second = a;
4296         }
4297 }
4298
4299
4300 /* add a client connection to the sockets list */
4301 void AddClient(int socket, char* host, int port, bool iscached)
4302 {
4303         int i;
4304         int blocking = 1;
4305         char resolved[MAXBUF];
4306         string tempnick;
4307         char tn2[MAXBUF];
4308         user_hash::iterator iter;
4309
4310         tempnick = ConvToStr(socket) + "-unknown";
4311         sprintf(tn2,"%d-unknown",socket);
4312
4313         iter = clientlist.find(tempnick);
4314
4315         if (iter != clientlist.end()) return;
4316
4317         /*
4318          * It is OK to access the value here this way since we know
4319          * it exists, we just created it above.
4320          *
4321          * At NO other time should you access a value in a map or a
4322          * hash_map this way.
4323          */
4324         clientlist[tempnick] = new userrec();
4325
4326         NonBlocking(socket);
4327         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4328
4329         clientlist[tempnick]->fd = socket;
4330         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4331         strncpy(clientlist[tempnick]->host, host,160);
4332         strncpy(clientlist[tempnick]->dhost, host,160);
4333         strncpy(clientlist[tempnick]->server, ServerName,256);
4334         strncpy(clientlist[tempnick]->ident, "unknown",9);
4335         clientlist[tempnick]->registered = 0;
4336         clientlist[tempnick]->signon = time(NULL);
4337         clientlist[tempnick]->nping = time(NULL)+240;
4338         clientlist[tempnick]->lastping = 1;
4339         clientlist[tempnick]->port = port;
4340
4341         if (iscached)
4342         {
4343                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4344         }
4345         else
4346         {
4347                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4348         }
4349
4350         // set the registration timeout for this user
4351         unsigned long class_regtimeout = 90;
4352         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4353         {
4354                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4355                 {
4356                         class_regtimeout = (unsigned long)i->registration_timeout;
4357                         break;
4358                 }
4359         }
4360
4361         int class_flood = 0;
4362         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4363         {
4364                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4365                 {
4366                         class_flood = i->flood;
4367                         break;
4368                 }
4369         }
4370
4371         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4372         clientlist[tempnick]->flood = class_flood;
4373
4374         for (int i = 0; i < MAXCHANS; i++)
4375         {
4376                 clientlist[tempnick]->chans[i].channel = NULL;
4377                 clientlist[tempnick]->chans[i].uc_modes = 0;
4378         }
4379
4380         if (clientlist.size() == MAXCLIENTS)
4381                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4382 }
4383
4384 void handle_names(char **parameters, int pcnt, userrec *user)
4385 {
4386         chanrec* c;
4387
4388         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4389                 return;
4390         c = FindChan(parameters[0]);
4391         if (c)
4392         {
4393                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4394                 userlist(user,c);
4395                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4396         }
4397         else
4398         {
4399                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4400         }
4401 }
4402
4403 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4404 {
4405         userrec *dest;
4406         chanrec *chan;
4407
4408         user->idle_lastmsg = time(NULL);
4409
4410         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4411                 return;
4412         if (parameters[0][0] == '#')
4413         {
4414                 chan = FindChan(parameters[0]);
4415                 if (chan)
4416                 {
4417                         if ((chan->noexternal) && (!has_channel(user,chan)))
4418                         {
4419                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4420                                 return;
4421                         }
4422                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4423                         {
4424                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4425                                 return;
4426                         }
4427
4428                         int MOD_RESULT = 0;
4429
4430                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4431                         if (MOD_RESULT) {
4432                                 return;
4433                         }
4434
4435                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4436
4437                         // if any users of this channel are on remote servers, broadcast the packet
4438                         char buffer[MAXBUF];
4439                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4440                         NetSendToCommon(user,buffer);
4441                 }
4442                 else
4443                 {
4444                         /* no such nick/channel */
4445                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4446                 }
4447                 return;
4448         }
4449
4450         dest = Find(parameters[0]);
4451         if (dest)
4452         {
4453                 if (strcmp(dest->awaymsg,""))
4454                 {
4455                         /* auto respond with aweh msg */
4456                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4457                 }
4458
4459                 int MOD_RESULT = 0;
4460
4461                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4462                 if (MOD_RESULT) {
4463                         return;
4464                 }
4465
4466
4467
4468                 if (!strcmp(dest->server,user->server))
4469                 {
4470                         // direct write, same server
4471                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4472                 }
4473                 else
4474                 {
4475                         char buffer[MAXBUF];
4476                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4477                         NetSendToOne(dest->server,buffer);
4478                 }
4479         }
4480         else
4481         {
4482                 /* no such nick/channel */
4483                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4484         }
4485 }
4486
4487 void handle_notice(char **parameters, int pcnt, userrec *user)
4488 {
4489         userrec *dest;
4490         chanrec *chan;
4491
4492         user->idle_lastmsg = time(NULL);
4493
4494         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4495                 return;
4496         if (parameters[0][0] == '#')
4497         {
4498                 chan = FindChan(parameters[0]);
4499                 if (chan)
4500                 {
4501                         if ((chan->noexternal) && (!has_channel(user,chan)))
4502                         {
4503                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4504                                 return;
4505                         }
4506                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4507                         {
4508                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4509                                 return;
4510                         }
4511
4512                         int MOD_RESULT = 0;
4513
4514                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4515                         if (MOD_RESULT) {
4516                                 return;
4517                         }
4518
4519                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4520
4521                         // if any users of this channel are on remote servers, broadcast the packet
4522                         char buffer[MAXBUF];
4523                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4524                         NetSendToCommon(user,buffer);
4525                 }
4526                 else
4527                 {
4528                         /* no such nick/channel */
4529                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4530                 }
4531                 return;
4532         }
4533
4534         dest = Find(parameters[0]);
4535         if (dest)
4536         {
4537                 int MOD_RESULT = 0;
4538
4539                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4540                 if (MOD_RESULT) {
4541                         return;
4542                 }
4543
4544                 if (!strcmp(dest->server,user->server))
4545                 {
4546                         // direct write, same server
4547                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4548                 }
4549                 else
4550                 {
4551                         char buffer[MAXBUF];
4552                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4553                         NetSendToOne(dest->server,buffer);
4554                 }
4555         }
4556         else
4557         {
4558                 /* no such nick/channel */
4559                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4560         }
4561 }
4562
4563 char lst[MAXBUF];
4564
4565 char* chlist(userrec *user)
4566 {
4567         int i = 0;
4568         char cmp[MAXBUF];
4569
4570         log(DEBUG,"chlist: %s",user->nick);
4571         strcpy(lst,"");
4572         if (!user)
4573         {
4574                 return lst;
4575         }
4576         for (int i = 0; i != MAXCHANS; i++)
4577         {
4578                 if (user->chans[i].channel != NULL)
4579                 {
4580                         if (user->chans[i].channel->name)
4581                         {
4582                                 strcpy(cmp,user->chans[i].channel->name);
4583                                 strcat(cmp," ");
4584                                 if (!strstr(lst,cmp))
4585                                 {
4586                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4587                                         {
4588                                                 strcat(lst,cmode(user,user->chans[i].channel));
4589                                                 strcat(lst,user->chans[i].channel->name);
4590                                                 strcat(lst," ");
4591                                         }
4592                                 }
4593                         }
4594                 }
4595         }
4596         if (strlen(lst))
4597         {
4598                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4599         }
4600         return lst;
4601 }
4602
4603 void handle_info(char **parameters, int pcnt, userrec *user)
4604 {
4605         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4606         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4607         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4608         FOREACH_MOD OnInfo(user);
4609         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4610 }
4611
4612 void handle_time(char **parameters, int pcnt, userrec *user)
4613 {
4614         time_t rawtime;
4615         struct tm * timeinfo;
4616
4617         time ( &rawtime );
4618         timeinfo = localtime ( &rawtime );
4619         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4620
4621 }
4622
4623 void handle_whois(char **parameters, int pcnt, userrec *user)
4624 {
4625         userrec *dest;
4626         char *t;
4627
4628         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4629                 return;
4630         dest = Find(parameters[0]);
4631         if (dest)
4632         {
4633                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4634                 if (dest->registered == 7)
4635                 {
4636                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4637                         if ((user == dest) || (strchr(user->modes,'o')))
4638                         {
4639                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4640                         }
4641                         if (strcmp(chlist(dest),""))
4642                         {
4643                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4644                         }
4645                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4646                         if (strcmp(dest->awaymsg,""))
4647                         {
4648                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4649                         }
4650                         if (strchr(dest->modes,'o'))
4651                         {
4652                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4653                         }
4654                         FOREACH_MOD OnWhois(user,dest);
4655                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4656                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4657
4658                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4659                 }
4660                 else
4661                 {
4662                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4663                 }
4664         }
4665         else
4666         {
4667                 /* no such nick/channel */
4668                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4669         }
4670 }
4671
4672 void send_network_quit(const char* nick, const char* reason)
4673 {
4674         char buffer[MAXBUF];
4675         snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4676         NetSendToAll(buffer);
4677 }
4678
4679 void handle_quit(char **parameters, int pcnt, userrec *user)
4680 {
4681         user_hash::iterator iter = clientlist.find(user->nick);
4682         char* reason;
4683
4684         if (user->registered == 7)
4685         {
4686                 /* theres more to do here, but for now just close the socket */
4687                 if (pcnt == 1)
4688                 {
4689                         if (parameters[0][0] == ':')
4690                         {
4691                                 *parameters[0]++;
4692                         }
4693                         reason = parameters[0];
4694
4695                         if (strlen(reason)>MAXQUIT)
4696                         {
4697                                 reason[MAXQUIT-1] = '\0';
4698                         }
4699
4700                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4701                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4702                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4703
4704                         char buffer[MAXBUF];
4705                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4706                         NetSendToAll(buffer);
4707                 }
4708                 else
4709                 {
4710                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4711                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4712                         WriteCommonExcept(user,"QUIT :Client exited");
4713
4714                         char buffer[MAXBUF];
4715                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4716                         NetSendToAll(buffer);
4717                 }
4718                 FOREACH_MOD OnUserQuit(user);
4719                 AddWhoWas(user);
4720         }
4721
4722         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4723         fd_reap.push_back(user->fd);
4724
4725         if (iter != clientlist.end())
4726         {
4727                 clientlist.erase(iter);
4728                 log(DEBUG,"deleting user hash value %d",iter->second);
4729                 //if ((user) && (user->registered == 7)) {
4730                         //delete user;
4731                 //}
4732         }
4733
4734         if (user->registered == 7) {
4735                 purge_empty_chans();
4736         }
4737 }
4738
4739 void handle_who(char **parameters, int pcnt, userrec *user)
4740 {
4741         chanrec* Ptr = NULL;
4742
4743         /* theres more to do here, but for now just close the socket */
4744         if (pcnt == 1)
4745         {
4746                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4747                 {
4748                         if (user->chans[0].channel)
4749                         {
4750                                 Ptr = user->chans[0].channel;
4751                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4752                                 {
4753                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4754                                         {
4755                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4756                                         }
4757                                 }
4758                         }
4759                         if (Ptr)
4760                         {
4761                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4762                         }
4763                         else
4764                         {
4765                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4766                         }
4767                         return;
4768                 }
4769                 if (parameters[0][0] == '#')
4770                 {
4771                         Ptr = FindChan(parameters[0]);
4772                         if (Ptr)
4773                         {
4774                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4775                                 {
4776                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4777                                         {
4778                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4779                                         }
4780                                 }
4781                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4782                         }
4783                         else
4784                         {
4785                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4786                         }
4787                 }
4788                 else
4789                 {
4790                         userrec* u = Find(parameters[0]);
4791                         WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, u->nick, u->ident, u->dhost, u->server, u->nick, u->fullname);
4792                 }
4793         }
4794         if (pcnt == 2)
4795         {
4796                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4797                 {
4798                         Ptr = user->chans[0].channel;
4799                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4800                         {
4801                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4802                                 {
4803                                         if (strchr(i->second->modes,'o'))
4804                                         {
4805                                                 WriteServ(user->fd,"352 %s %s %s %s %s %s Hr@ :0 %s",user->nick, Ptr->name, i->second->ident, i->second->dhost, i->second->server, i->second->nick, i->second->fullname);
4806                                         }
4807                                 }
4808                         }
4809                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4810                         return;
4811                 }
4812         }
4813 }
4814
4815 void handle_wallops(char **parameters, int pcnt, userrec *user)
4816 {
4817         WriteWallOps(user,false,"%s",parameters[0]);
4818 }
4819
4820 void handle_list(char **parameters, int pcnt, userrec *user)
4821 {
4822         chanrec* Ptr;
4823
4824         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4825         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4826         {
4827                 if ((!i->second->c_private) && (!i->second->secret))
4828                 {
4829                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4830                 }
4831         }
4832         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4833 }
4834
4835
4836 void handle_rehash(char **parameters, int pcnt, userrec *user)
4837 {
4838         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4839         ReadConfig();
4840         FOREACH_MOD OnRehash();
4841         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4842 }
4843
4844
4845 int usercnt(void)
4846 {
4847         return clientlist.size();
4848 }
4849
4850
4851 int usercount_invisible(void)
4852 {
4853         int c = 0;
4854
4855         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4856         {
4857                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4858         }
4859         return c;
4860 }
4861
4862 int usercount_opers(void)
4863 {
4864         int c = 0;
4865
4866         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4867         {
4868                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4869         }
4870         return c;
4871 }
4872
4873 int usercount_unknown(void)
4874 {
4875         int c = 0;
4876
4877         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4878         {
4879                 if ((i->second->fd) && (i->second->registered != 7))
4880                         c++;
4881         }
4882         return c;
4883 }
4884
4885 long chancount(void)
4886 {
4887         return chanlist.size();
4888 }
4889
4890 long count_servs(void)
4891 {
4892         int c = 0;
4893         //for (int j = 0; j < 255; j++)
4894         //{
4895         //      if (servers[j] != NULL)
4896         //              c++;
4897         //}
4898         return c;
4899 }
4900
4901 long servercount(void)
4902 {
4903         return count_servs()+1;
4904 }
4905
4906 long local_count()
4907 {
4908         int c = 0;
4909         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4910         {
4911                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4912         }
4913         return c;
4914 }
4915
4916
4917 void handle_lusers(char **parameters, int pcnt, userrec *user)
4918 {
4919         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4920         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4921         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4922         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4923         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4924 }
4925
4926 void handle_admin(char **parameters, int pcnt, userrec *user)
4927 {
4928         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4929         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4930         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4931         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4932 }
4933
4934 void ShowMOTD(userrec *user)
4935 {
4936         if (!MOTD.size())
4937         {
4938                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4939                 return;
4940         }
4941         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4942         for (int i = 0; i != MOTD.size(); i++)
4943         {
4944                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4945         }
4946         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4947 }
4948
4949 void ShowRULES(userrec *user)
4950 {
4951         if (!RULES.size())
4952         {
4953                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4954                 return;
4955         }
4956         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4957         for (int i = 0; i != RULES.size(); i++)
4958         {
4959                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4960         }
4961         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4962 }
4963
4964 /* shows the message of the day, and any other on-logon stuff */
4965 void ConnectUser(userrec *user)
4966 {
4967         user->registered = 7;
4968         user->idle_lastmsg = time(NULL);
4969         log(DEBUG,"ConnectUser: %s",user->nick);
4970
4971         if (strcmp(Passwd(user),"") && (!user->haspassed))
4972         {
4973                 kill_link(user,"Invalid password");
4974                 return;
4975         }
4976         if (IsDenied(user))
4977         {
4978                 kill_link(user,"Unauthorised connection");
4979                 return;
4980         }
4981
4982         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
4983         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
4984         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
4985         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
4986         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
4987         WriteServ(user->fd,"005 %s :MAP KNOCK SAFELIST HCN MAXCHANNELS=20 MAXBANS=60 NICKLEN=30 TOPICLEN=307 KICKLEN=307 MAXTARGETS=20 AWAYLEN=307 :are supported by this server",user->nick);
4988         WriteServ(user->fd,"005 %s :WALLCHOPS WATCH=128 SILENCE=5 MODES=13 CHANTYPES=# PREFIX=(ohv)@%c+ CHANMODES=ohvbeqa,kfL,l,psmntirRcOAQKVHGCuzN NETWORK=%s :are supported by this server",user->nick,'%',Network);
4989         ShowMOTD(user);
4990         FOREACH_MOD OnUserConnect(user);
4991         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
4992
4993         char buffer[MAXBUF];
4994         snprintf(buffer,MAXBUF,"N %d %s %s %s %s +%s %s :%s",user->age,user->nick,user->host,user->dhost,user->ident,user->modes,ServerName,user->fullname);
4995         NetSendToAll(buffer);
4996 }
4997
4998 void handle_version(char **parameters, int pcnt, userrec *user)
4999 {
5000         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5001 }
5002
5003 void handle_ping(char **parameters, int pcnt, userrec *user)
5004 {
5005         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5006 }
5007
5008 void handle_pong(char **parameters, int pcnt, userrec *user)
5009 {
5010         // set the user as alive so they survive to next ping
5011         user->lastping = 1;
5012 }
5013
5014 void handle_motd(char **parameters, int pcnt, userrec *user)
5015 {
5016         ShowMOTD(user);
5017 }
5018
5019 void handle_rules(char **parameters, int pcnt, userrec *user)
5020 {
5021         ShowRULES(user);
5022 }
5023
5024 void handle_user(char **parameters, int pcnt, userrec *user)
5025 {
5026         if (user->registered < 3)
5027         {
5028                 if (isident(parameters[0]) == 0) {
5029                         // This kinda Sucks, According to the RFC thou, its either this,
5030                         // or "You have already registered" :p -- Craig
5031                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5032                 }
5033                 else {
5034                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5035                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5036                         strncat(user->ident,parameters[0],IDENTMAX);
5037                         strncpy(user->fullname,parameters[3],128);
5038                         user->registered = (user->registered | 1);
5039                 }
5040         }
5041         else
5042         {
5043                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5044                 return;
5045         }
5046         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5047         if (user->registered == 3)
5048         {
5049                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5050                 ConnectUser(user);
5051         }
5052 }
5053
5054 void handle_userhost(char **parameters, int pcnt, userrec *user)
5055 {
5056         char Return[MAXBUF],junk[MAXBUF];
5057         sprintf(Return,"302 %s :",user->nick);
5058         for (int i = 0; i < pcnt; i++)
5059         {
5060                 userrec *u = Find(parameters[i]);
5061                 if (u)
5062                 {
5063                         if (strchr(u->modes,'o'))
5064                         {
5065                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5066                                 strcat(Return,junk);
5067                         }
5068                         else
5069                         {
5070                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5071                                 strcat(Return,junk);
5072                         }
5073                 }
5074         }
5075         WriteServ(user->fd,Return);
5076 }
5077
5078
5079 void handle_ison(char **parameters, int pcnt, userrec *user)
5080 {
5081         char Return[MAXBUF];
5082         sprintf(Return,"303 %s :",user->nick);
5083         for (int i = 0; i < pcnt; i++)
5084         {
5085                 userrec *u = Find(parameters[i]);
5086                 if (u)
5087                 {
5088                         strcat(Return,u->nick);
5089                         strcat(Return," ");
5090                 }
5091         }
5092         WriteServ(user->fd,Return);
5093 }
5094
5095
5096 void handle_away(char **parameters, int pcnt, userrec *user)
5097 {
5098         if (pcnt)
5099         {
5100                 strcpy(user->awaymsg,parameters[0]);
5101                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5102         }
5103         else
5104         {
5105                 strcpy(user->awaymsg,"");
5106                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5107         }
5108 }
5109
5110 void handle_whowas(char **parameters, int pcnt, userrec* user)
5111 {
5112         user_hash::iterator i = whowas.find(parameters[0]);
5113
5114         if (i == whowas.end())
5115         {
5116                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5117                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5118         }
5119         else
5120         {
5121                 time_t rawtime = i->second->signon;
5122                 tm *timeinfo;
5123                 char b[MAXBUF];
5124
5125                 timeinfo = localtime(&rawtime);
5126                 strcpy(b,asctime(timeinfo));
5127                 b[strlen(b)-1] = '\0';
5128
5129                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5130                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5131                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5132         }
5133
5134 }
5135
5136 void handle_trace(char **parameters, int pcnt, userrec *user)
5137 {
5138         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5139         {
5140                 if (i->second)
5141                 {
5142                         if (isnick(i->second->nick))
5143                         {
5144                                 if (strchr(i->second->modes,'o'))
5145                                 {
5146                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5147                                 }
5148                                 else
5149                                 {
5150                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5151                                 }
5152                         }
5153                         else
5154                         {
5155                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5156                         }
5157                 }
5158         }
5159 }
5160
5161 void handle_modules(char **parameters, int pcnt, userrec *user)
5162 {
5163         for (int i = 0; i < module_names.size(); i++)
5164         {
5165                         Version V = modules[i]->GetVersion();
5166                         char modulename[MAXBUF];
5167                         strncpy(modulename,module_names[i].c_str(),256);
5168                         WriteServ(user->fd,"900 %s :0x%08lx %d.%d.%d.%d %s",user->nick,modules[i],V.Major,V.Minor,V.Revision,V.Build,CleanFilename(modulename));
5169         }
5170 }
5171
5172 // calls a handler function for a command
5173
5174 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5175 {
5176                 for (int i = 0; i < cmdlist.size(); i++)
5177                 {
5178                         if (!strcasecmp(cmdlist[i].command,commandname))
5179                         {
5180                                 if (cmdlist[i].handler_function)
5181                                 {
5182                                         if (pcnt>=cmdlist[i].min_params)
5183                                         {
5184                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5185                                                 {
5186                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5187                                                 }
5188                                         }
5189                                 }
5190                         }
5191                 }
5192 }
5193
5194 void handle_stats(char **parameters, int pcnt, userrec *user)
5195 {
5196         if (pcnt != 1)
5197         {
5198                 return;
5199         }
5200         if (strlen(parameters[0])>1)
5201         {
5202                 /* make the stats query 1 character long */
5203                 parameters[0][1] = '\0';
5204         }
5205
5206         /* stats m (list number of times each command has been used, plus bytecount) */
5207         if (!strcasecmp(parameters[0],"m"))
5208         {
5209                 for (int i = 0; i < cmdlist.size(); i++)
5210                 {
5211                         if (cmdlist[i].handler_function)
5212                         {
5213                                 if (cmdlist[i].use_count)
5214                                 {
5215                                         /* RPL_STATSCOMMANDS */
5216                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5217                                 }
5218                         }
5219                 }
5220
5221         }
5222
5223         /* stats z (debug and memory info) */
5224         if (!strcasecmp(parameters[0],"z"))
5225         {
5226                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5227                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5228                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5229                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5230                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5231                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5232                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5233                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5234         }
5235
5236         /* stats o */
5237         if (!strcasecmp(parameters[0],"o"))
5238         {
5239                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5240                 {
5241                         char LoginName[MAXBUF];
5242                         char HostName[MAXBUF];
5243                         char OperType[MAXBUF];
5244                         ConfValue("oper","name",i,LoginName,&config_f);
5245                         ConfValue("oper","host",i,HostName,&config_f);
5246                         ConfValue("oper","type",i,OperType,&config_f);
5247                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5248                 }
5249         }
5250
5251         /* stats l (show user I/O stats) */
5252         if (!strcasecmp(parameters[0],"l"))
5253         {
5254                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5255                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5256                 {
5257                         if (isnick(i->second->nick))
5258                         {
5259                                 WriteServ(user->fd,"211 %s :%s:%d %s %d %d %d %d",user->nick,ServerName,i->second->port,i->second->nick,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
5260                         }
5261                         else
5262                         {
5263                                 WriteServ(user->fd,"211 %s :%s:%d (unknown@%d) %d %d %d %d",user->nick,ServerName,i->second->port,i->second->fd,i->second->bytes_in,i->second->cmds_in,i->second->bytes_out,i->second->cmds_out);
5264                         }
5265
5266                 }
5267         }
5268
5269         /* stats u (show server uptime) */
5270         if (!strcasecmp(parameters[0],"u"))
5271         {
5272                 time_t current_time = 0;
5273                 current_time = time(NULL);
5274                 time_t server_uptime = current_time - startup_time;
5275                 struct tm* stime;
5276                 stime = gmtime(&server_uptime);
5277                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5278                  * Craig suggested this, and it seemed a good idea so in it went */
5279                 if (stime->tm_year > 70)
5280                 {
5281                         WriteServ(user->fd,"242 %s :Server up %d years, %d days, %.2d:%.2d:%.2d",user->nick,(stime->tm_year-70),stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
5282                 }
5283                 else
5284                 {
5285                         WriteServ(user->fd,"242 %s :Server up %d days, %.2d:%.2d:%.2d",user->nick,stime->tm_yday,stime->tm_hour,stime->tm_min,stime->tm_sec);
5286                 }
5287         }
5288
5289         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5290         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5291
5292 }
5293
5294 void handle_connect(char **parameters, int pcnt, userrec *user)
5295 {
5296         char Link_ServerName[1024];
5297         char Link_IPAddr[1024];
5298         char Link_Port[1024];
5299         char Link_Pass[1024];
5300         int LinkPort;
5301         bool found = false;
5302
5303         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5304         {
5305                 if (!found)
5306                 {
5307                         ConfValue("link","name",i,Link_ServerName,&config_f);
5308                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5309                         ConfValue("link","port",i,Link_Port,&config_f);
5310                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
5311                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5312                         LinkPort = atoi(Link_Port);
5313                         if (match(Link_ServerName,parameters[0])) {
5314                                 found = true;
5315                                 break;
5316                         }
5317                 }
5318         }
5319
5320         if (!found) {
5321                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5322                 return;
5323         }
5324
5325         // TODO: Perform a check here to stop a server being linked twice!
5326
5327         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5328
5329         if (me[defaultRoute])
5330         {
5331                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName);
5332                 return;
5333         }
5334         else
5335         {
5336                 WriteServ(user->fd,"NOTICE %s :No default route is defined for server connections on this server. You must define a server connection to be default route so that sockets can be bound to it.",user->nick);
5337         }
5338 }
5339
5340 void handle_squit(char **parameters, int pcnt, userrec *user)
5341 {
5342         // send out an squit across the mesh and then clear the server list (for local squit)
5343 }
5344
5345 char islast(serverrec* s)
5346 {
5347         char c = '`';
5348         /*for (int j = 0; j < 255; j++)
5349         {
5350                 if (servers[j] != NULL)
5351                 {
5352                         c = '|';
5353                 }
5354                 if (servers[j] == s)
5355                 {
5356                         c = '`';
5357                 }
5358         }*/
5359         return c;
5360 }
5361
5362 long map_count(serverrec* s)
5363 {
5364         int c = 0;
5365         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5366         {
5367                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s->name))) c++;
5368         }
5369         return c;
5370 }
5371
5372 void handle_links(char **parameters, int pcnt, userrec *user)
5373 {
5374         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5375         for (int j = 0; j < 255; j++)
5376         {
5377         //      if (servers[j] != NULL)
5378         //      {
5379         //              WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,servers[j]->name,ServerName,servers[j]->description);
5380         //      }
5381         }
5382         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5383 }
5384
5385 void handle_map(char **parameters, int pcnt, userrec *user)
5386 {
5387         char line[MAXBUF];
5388         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5389         while (strlen(line) < 50)
5390                 strcat(line," ");
5391         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5392         for (int j = 0; j < 255; j++)
5393         {
5394         //      if (servers[j] != NULL)
5395         //      {
5396         //              snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(servers[j]),servers[j]->name);
5397         //              while (strlen(line) < 50)
5398         //                      strcat(line," ");
5399         //              WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(servers[j]),(float)(((float)map_count(servers[j])/(float)usercnt())*100));
5400         //      }
5401         }
5402         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5403 }
5404
5405
5406 void handle_oper(char **parameters, int pcnt, userrec *user)
5407 {
5408         char LoginName[MAXBUF];
5409         char Password[MAXBUF];
5410         char OperType[MAXBUF];
5411         char TypeName[MAXBUF];
5412         char Hostname[MAXBUF];
5413         int i,j;
5414
5415         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5416         {
5417                 ConfValue("oper","name",i,LoginName,&config_f);
5418                 ConfValue("oper","password",i,Password,&config_f);
5419                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5420                 {
5421                         /* correct oper credentials */
5422                         ConfValue("oper","type",i,OperType,&config_f);
5423                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5424                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5425                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5426                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5427                         {
5428                                 ConfValue("type","name",j,TypeName,&config_f);
5429                                 if (!strcmp(TypeName,OperType))
5430                                 {
5431                                         /* found this oper's opertype */
5432                                         ConfValue("type","host",j,Hostname,&config_f);
5433                                         strncpy(user->dhost,Hostname,256);
5434                                 }
5435                         }
5436                         if (!strchr(user->modes,'o'))
5437                         {
5438                                 strcat(user->modes,"o");
5439                         }
5440                         FOREACH_MOD OnOper(user);
5441                         return;
5442                 }
5443         }
5444         /* no such oper */
5445         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5446         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5447 }
5448
5449 void handle_nick(char **parameters, int pcnt, userrec *user)
5450 {
5451         if (pcnt < 1)
5452         {
5453                 log(DEBUG,"not enough params for handle_nick");
5454                 return;
5455         }
5456         if (!parameters[0])
5457         {
5458                 log(DEBUG,"invalid parameter passed to handle_nick");
5459                 return;
5460         }
5461         if (!strlen(parameters[0]))
5462         {
5463                 log(DEBUG,"zero length new nick passed to handle_nick");
5464                 return;
5465         }
5466         if (!user)
5467         {
5468                 log(DEBUG,"invalid user passed to handle_nick");
5469                 return;
5470         }
5471         if (!user->nick)
5472         {
5473                 log(DEBUG,"invalid old nick passed to handle_nick");
5474                 return;
5475         }
5476         if (!strcasecmp(user->nick,parameters[0]))
5477         {
5478                 log(DEBUG,"old nick is new nick, skipping");
5479                 return;
5480         }
5481         else
5482         {
5483                 if (strlen(parameters[0]) > 1)
5484                 {
5485                         if (parameters[0][0] == ':')
5486                         {
5487                                 *parameters[0]++;
5488                         }
5489                 }
5490                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5491                 {
5492                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5493                         return;
5494                 }
5495         }
5496         if (isnick(parameters[0]) == 0)
5497         {
5498                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5499                 return;
5500         }
5501
5502         if (user->registered == 7)
5503         {
5504                 WriteCommon(user,"NICK %s",parameters[0]);
5505
5506                 // Q token must go to ALL servers!!!
5507                 char buffer[MAXBUF];
5508                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5509                 NetSendToAll(buffer);
5510
5511         }
5512
5513         /* change the nick of the user in the users_hash */
5514         user = ReHashNick(user->nick, parameters[0]);
5515         /* actually change the nick within the record */
5516         if (!user) return;
5517         if (!user->nick) return;
5518
5519         strncpy(user->nick, parameters[0],NICKMAX);
5520
5521         log(DEBUG,"new nick set: %s",user->nick);
5522
5523         if (user->registered < 3)
5524                 user->registered = (user->registered | 2);
5525         if (user->registered == 3)
5526         {
5527                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5528                 ConnectUser(user);
5529         }
5530         log(DEBUG,"exit nickchange: %s",user->nick);
5531 }
5532
5533 void force_nickchange(userrec* user,const char* newnick)
5534 {
5535         char nick[MAXBUF];
5536         strcpy(nick,"");
5537
5538         if (user)
5539         {
5540                 if (newnick)
5541                 {
5542                         strncpy(nick,newnick,MAXBUF);
5543                 }
5544                 if (user->registered == 7)
5545                 {
5546                         char* pars[1];
5547                         pars[0] = nick;
5548                         handle_nick(pars,1,user);
5549                 }
5550         }
5551 }
5552
5553
5554 int process_parameters(char **command_p,char *parameters)
5555 {
5556         int i = 0;
5557         int j = 0;
5558         int q = 0;
5559         q = strlen(parameters);
5560         if (!q)
5561         {
5562                 /* no parameters, command_p invalid! */
5563                 return 0;
5564         }
5565         if (parameters[0] == ':')
5566         {
5567                 command_p[0] = parameters+1;
5568                 return 1;
5569         }
5570         if (q)
5571         {
5572                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5573                 {
5574                         /* only one parameter */
5575                         command_p[0] = parameters;
5576                         if (parameters[0] == ':')
5577                         {
5578                                 if (strchr(parameters,' ') != NULL)
5579                                 {
5580                                         command_p[0]++;
5581                                 }
5582                         }
5583                         return 1;
5584                 }
5585         }
5586         command_p[j++] = parameters;
5587         for (int i = 0; i <= q; i++)
5588         {
5589                 if (parameters[i] == ' ')
5590                 {
5591                         command_p[j++] = parameters+i+1;
5592                         parameters[i] = '\0';
5593                         if (command_p[j-1][0] == ':')
5594                         {
5595                                 *command_p[j-1]++; /* remove dodgy ":" */
5596                                 break;
5597                                 /* parameter like this marks end of the sequence */
5598                         }
5599                 }
5600         }
5601         return j; /* returns total number of items in the list */
5602 }
5603
5604 void process_command(userrec *user, char* cmd)
5605 {
5606         char *parameters;
5607         char *command;
5608         char *command_p[127];
5609         char p[MAXBUF], temp[MAXBUF];
5610         int i, j, items, cmd_found;
5611
5612         for (int i = 0; i < 127; i++)
5613                 command_p[i] = NULL;
5614
5615         if (!user)
5616         {
5617                 return;
5618         }
5619         if (!cmd)
5620         {
5621                 return;
5622         }
5623         if (!strcmp(cmd,""))
5624         {
5625                 return;
5626         }
5627
5628         int total_params = 0;
5629         if (strlen(cmd)>2)
5630         {
5631                 for (int q = 0; q < strlen(cmd)-1; q++)
5632                 {
5633                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5634                         {
5635                                 total_params++;
5636                                 // found a 'trailing', we dont count them after this.
5637                                 break;
5638                         }
5639                         if (cmd[q] == ' ')
5640                                 total_params++;
5641                 }
5642         }
5643
5644         // another phidjit bug...
5645         if (total_params > 126)
5646         {
5647                 kill_link(user,"Protocol violation (1)");
5648                 return;
5649         }
5650
5651         strcpy(temp,cmd);
5652
5653         std::string tmp = cmd;
5654         for (int i = 0; i <= MODCOUNT; i++)
5655         {
5656                 std::string oldtmp = tmp;
5657                 modules[i]->OnServerRaw(tmp,true);
5658                 if (oldtmp != tmp)
5659                 {
5660                         log(DEBUG,"A Module changed the input string!");
5661                         log(DEBUG,"New string: %s",tmp.c_str());
5662                         log(DEBUG,"Old string: %s",oldtmp.c_str());
5663                         break;
5664                 }
5665         }
5666         strncpy(cmd,tmp.c_str(),MAXBUF);
5667         strcpy(temp,cmd);
5668
5669         if (!strchr(cmd,' '))
5670         {
5671                 /* no parameters, lets skip the formalities and not chop up
5672                  * the string */
5673                 log(DEBUG,"About to preprocess command with no params");
5674                 items = 0;
5675                 command_p[0] = NULL;
5676                 parameters = NULL;
5677                 for (int i = 0; i <= strlen(cmd); i++)
5678                 {
5679                         cmd[i] = toupper(cmd[i]);
5680                 }
5681                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5682                 command = cmd;
5683         }
5684         else
5685         {
5686                 strcpy(cmd,"");
5687                 j = 0;
5688                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5689                 for (int i = 0; i < strlen(temp); i++)
5690                 {
5691                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5692                         {
5693                                 cmd[j++] = temp[i];
5694                                 cmd[j] = 0;
5695                         }
5696                 }
5697                 /* split the full string into a command plus parameters */
5698                 parameters = p;
5699                 strcpy(p," ");
5700                 command = cmd;
5701                 if (strchr(cmd,' '))
5702                 {
5703                         for (int i = 0; i <= strlen(cmd); i++)
5704                         {
5705                                 /* capitalise the command ONLY, leave params intact */
5706                                 cmd[i] = toupper(cmd[i]);
5707                                 /* are we nearly there yet?! :P */
5708                                 if (cmd[i] == ' ')
5709                                 {
5710                                         command = cmd;
5711                                         parameters = cmd+i+1;
5712                                         cmd[i] = '\0';
5713                                         break;
5714                                 }
5715                         }
5716                 }
5717                 else
5718                 {
5719                         for (int i = 0; i <= strlen(cmd); i++)
5720                         {
5721                                 cmd[i] = toupper(cmd[i]);
5722                         }
5723                 }
5724
5725         }
5726         cmd_found = 0;
5727
5728         if (strlen(command)>MAXCOMMAND)
5729         {
5730                 kill_link(user,"Protocol violation (2)");
5731                 return;
5732         }
5733
5734         for (int x = 0; x < strlen(command); x++)
5735         {
5736                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5737                 {
5738                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5739                         {
5740                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5741                                 {
5742                                         kill_link(user,"Protocol violation (3)");
5743                                         return;
5744                                 }
5745                         }
5746                 }
5747         }
5748
5749         for (int i = 0; i != cmdlist.size(); i++)
5750         {
5751                 if (strcmp(cmdlist[i].command,""))
5752                 {
5753                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5754                         {
5755                                 log(DEBUG,"Found matching command");
5756
5757                                 if (parameters)
5758                                 {
5759                                         if (strcmp(parameters,""))
5760                                         {
5761                                                 items = process_parameters(command_p,parameters);
5762                                         }
5763                                         else
5764                                         {
5765                                                 items = 0;
5766                                                 command_p[0] = NULL;
5767                                         }
5768                                 }
5769                                 else
5770                                 {
5771                                         items = 0;
5772                                         command_p[0] = NULL;
5773                                 }
5774
5775                                 if (user)
5776                                 {
5777                                         log(DEBUG,"Processing command");
5778
5779                                         /* activity resets the ping pending timer */
5780                                         user->nping = time(NULL) + 120;
5781                                         if ((items) < cmdlist[i].min_params)
5782                                         {
5783                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5784                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5785                                                 return;
5786                                         }
5787                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5788                                         {
5789                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5790                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5791                                                 cmd_found = 1;
5792                                                 return;
5793                                         }
5794                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5795                                          * deny command! */
5796                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5797                                         {
5798                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5799                                                 {
5800                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5801                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5802                                                         return;
5803                                                 }
5804                                         }
5805                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5806                                         {
5807                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5808                                                 if (cmdlist[i].handler_function)
5809                                                 {
5810                                                         /* ikky /stats counters */
5811                                                         if (temp)
5812                                                         {
5813                                                                 if (user)
5814                                                                 {
5815                                                                         user->bytes_in += strlen(temp);
5816                                                                         user->cmds_in++;
5817                                                                 }
5818                                                                 cmdlist[i].use_count++;
5819                                                                 cmdlist[i].total_bytes+=strlen(temp);
5820                                                         }
5821
5822                                                         /* WARNING: nothing may come after the
5823                                                          * command handler call, as the handler
5824                                                          * may free the user structure! */
5825
5826                                                         cmdlist[i].handler_function(command_p,items,user);
5827                                                 }
5828                                                 return;
5829                                         }
5830                                         else
5831                                         {
5832                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5833                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5834                                                 return;
5835                                         }
5836                                 }
5837                                 cmd_found = 1;
5838                         }
5839                 }
5840         }
5841         if ((!cmd_found) && (user))
5842         {
5843                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5844                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5845         }
5846 }
5847
5848
5849 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5850 {
5851         command_t comm;
5852         /* create the command and push it onto the table */
5853         strcpy(comm.command,cmd);
5854         comm.handler_function = f;
5855         comm.flags_needed = flags;
5856         comm.min_params = minparams;
5857         comm.use_count = 0;
5858         comm.total_bytes = 0;
5859         cmdlist.push_back(comm);
5860         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5861 }
5862
5863 void SetupCommandTable(void)
5864 {
5865         createcommand("USER",handle_user,0,4);
5866         createcommand("NICK",handle_nick,0,1);
5867         createcommand("QUIT",handle_quit,0,0);
5868         createcommand("VERSION",handle_version,0,0);
5869         createcommand("PING",handle_ping,0,1);
5870         createcommand("PONG",handle_pong,0,1);
5871         createcommand("ADMIN",handle_admin,0,0);
5872         createcommand("PRIVMSG",handle_privmsg,0,2);
5873         createcommand("INFO",handle_info,0,0);
5874         createcommand("TIME",handle_time,0,0);
5875         createcommand("WHOIS",handle_whois,0,1);
5876         createcommand("WALLOPS",handle_wallops,'o',1);
5877         createcommand("NOTICE",handle_notice,0,2);
5878         createcommand("JOIN",handle_join,0,1);
5879         createcommand("NAMES",handle_names,0,1);
5880         createcommand("PART",handle_part,0,1);
5881         createcommand("KICK",handle_kick,0,2);
5882         createcommand("MODE",handle_mode,0,1);
5883         createcommand("TOPIC",handle_topic,0,1);
5884         createcommand("WHO",handle_who,0,1);
5885         createcommand("MOTD",handle_motd,0,0);
5886         createcommand("RULES",handle_rules,0,0);
5887         createcommand("OPER",handle_oper,0,2);
5888         createcommand("LIST",handle_list,0,0);
5889         createcommand("DIE",handle_die,'o',1);
5890         createcommand("RESTART",handle_restart,'o',1);
5891         createcommand("KILL",handle_kill,'o',2);
5892         createcommand("REHASH",handle_rehash,'o',0);
5893         createcommand("LUSERS",handle_lusers,0,0);
5894         createcommand("STATS",handle_stats,0,1);
5895         createcommand("USERHOST",handle_userhost,0,1);
5896         createcommand("AWAY",handle_away,0,0);
5897         createcommand("ISON",handle_ison,0,0);
5898         createcommand("SUMMON",handle_summon,0,0);
5899         createcommand("USERS",handle_users,0,0);
5900         createcommand("INVITE",handle_invite,0,2);
5901         createcommand("PASS",handle_pass,0,1);
5902         createcommand("TRACE",handle_trace,'o',0);
5903         createcommand("WHOWAS",handle_whowas,0,1);
5904         createcommand("CONNECT",handle_connect,'o',1);
5905         createcommand("SQUIT",handle_squit,'o',1);
5906         createcommand("MODULES",handle_modules,'o',0);
5907         createcommand("LINKS",handle_links,0,0);
5908         createcommand("MAP",handle_map,0,0);
5909 }
5910
5911 void process_buffer(const char* cmdbuf,userrec *user)
5912 {
5913         if (!user)
5914         {
5915                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5916                 return;
5917         }
5918         char cmd[MAXBUF];
5919         int i;
5920         if (!cmdbuf)
5921         {
5922                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5923                 return;
5924         }
5925         if (!strcmp(cmdbuf,""))
5926         {
5927                 return;
5928         }
5929         strncpy(cmd,cmdbuf,MAXBUF);
5930         if (!strcmp(cmd,""))
5931         {
5932                 return;
5933         }
5934         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5935         {
5936                 cmd[strlen(cmd)-1] = '\0';
5937         }
5938         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5939         {
5940                 cmd[strlen(cmd)-1] = '\0';
5941         }
5942         if (!strcmp(cmd,""))
5943         {
5944                 return;
5945         }
5946         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5947         tidystring(cmd);
5948         if ((user) && (cmd))
5949         {
5950                 process_command(user,cmd);
5951         }
5952 }
5953
5954 void DoSync(serverrec* serv, char* udp_host)
5955 {
5956         char data[MAXBUF];
5957         // send start of sync marker: Y <timestamp>
5958         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
5959         // except the ones its receiving it from.
5960         snprintf(data,MAXBUF,"Y %d",time(NULL));
5961         serv->SendPacket(data,udp_host);
5962         // send users and channels
5963         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
5964         {
5965                 snprintf(data,MAXBUF,"N %d %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->server,u->second->fullname);
5966                 serv->SendPacket(data,udp_host);
5967                 if (strcmp(chlist(u->second),""))
5968                 {
5969                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
5970                         serv->SendPacket(data,udp_host);
5971                 }
5972         }
5973         // send channel modes, topics etc...
5974         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
5975         {
5976                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
5977                 serv->SendPacket(data,udp_host);
5978                 if (strcmp(c->second->topic,""))
5979                 {
5980                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
5981                         serv->SendPacket(data,udp_host);
5982                 }
5983                 // send current banlist
5984
5985                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
5986                 {
5987                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
5988                         serv->SendPacket(data,udp_host);
5989                 }
5990         }
5991         // send end of sync marker: E <timestamp>
5992         snprintf(data,MAXBUF,"F %d",time(NULL));
5993         serv->SendPacket(data,udp_host);
5994         // ircd sends its serverlist after the end of sync here
5995 }
5996
5997
5998 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
5999 {
6000         char* src = strtok(params," ");
6001         char* dest = strtok(NULL," :");
6002         char* text = strtok(NULL,"\r\n");
6003         text++;
6004
6005         userrec* user = Find(src);
6006         if (user)
6007         {
6008                 userrec* dst = Find(dest);
6009
6010                 if (dst)
6011                 {
6012                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6013                 }
6014                 else
6015                 {
6016                         chanrec* d = FindChan(dest);
6017                         if (d)
6018                         {
6019                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6020                         }
6021                 }
6022         }
6023
6024 }
6025
6026
6027 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6028 {
6029         char* src = strtok(params," ");
6030         char* dest = strtok(NULL," :");
6031         char* text = strtok(NULL,"\r\n");
6032         text++;
6033
6034         userrec* user = Find(src);
6035         if (user)
6036         {
6037                 userrec* dst = Find(dest);
6038
6039                 if (dst)
6040                 {
6041                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6042                 }
6043                 else
6044                 {
6045                         chanrec* d = FindChan(dest);
6046                         if (d)
6047                         {
6048                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6049                         }
6050                 }
6051         }
6052
6053 }
6054
6055 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6056 {
6057         char* nick = strtok(params," ");
6058         char* from = strtok(NULL," ");
6059         char* channel = strtok(NULL," ");
6060         userrec* u = Find(nick);
6061         userrec* user = Find(from);
6062         chanrec* c = FindChan(channel);
6063         if ((c) && (u) && (user))
6064         {
6065                 u->InviteTo(c->name);
6066                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6067         }
6068 }
6069
6070 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6071 {
6072         char* setby = strtok(params," ");
6073         char* channel = strtok(NULL," :");
6074         char* topic = strtok(NULL,"\r\n");
6075         topic++;
6076         userrec* u = Find(setby);
6077         chanrec* c = FindChan(channel);
6078         if ((c) && (u))
6079         {
6080                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6081                 strncpy(c->topic,topic,MAXTOPIC);
6082                 strncpy(c->setby,u->nick,NICKMAX);
6083         }
6084 }
6085
6086
6087 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6088 {
6089         char* tm = strtok(params," ");
6090         char* setby = strtok(NULL," ");
6091         char* channel = strtok(NULL," :");
6092         char* topic = strtok(NULL,"\r\n");
6093         topic++;
6094         time_t TS = atoi(tm);
6095         chanrec* c = FindChan(channel);
6096         if (c)
6097         {
6098                 // in the case of topics and TS, the *NEWER*
6099                 if (TS <= c->topicset)
6100                 {
6101                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6102                         strncpy(c->topic,topic,MAXTOPIC);
6103                         strncpy(c->setby,setby,NICKMAX);
6104                 }
6105         }
6106 }
6107
6108 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6109 {
6110         char* pars[128];
6111         char original[MAXBUF],target[MAXBUF];
6112         strncpy(original,params,MAXBUF);
6113         int index = 0;
6114         char* parameter = strtok(params," ");
6115         strncpy(target,parameter,MAXBUF);
6116         while (parameter)
6117         {
6118                 pars[index++] = parameter;
6119                 parameter = strtok(NULL," ");
6120         }
6121         merge_mode(pars,index);
6122         if (FindChan(target))
6123         {
6124                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6125         }
6126         if (Find(target))
6127         {
6128                 WriteTo(NULL,Find(target),"MODE %s",original);
6129         }
6130 }
6131
6132 // m is modes set by users only (not servers) valid targets are channels or users.
6133
6134 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6135 {
6136         // m blah #chatspike +b *!test@*4
6137         char* pars[128];
6138         char original[MAXBUF];
6139         strncpy(original,params,MAXBUF);
6140
6141         if (!strchr(params,' '))
6142         {
6143                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6144                 return;
6145         }
6146
6147         int index = 0;
6148
6149         char* src = strtok(params," ");
6150         userrec* user = Find(src);
6151
6152         if (user)
6153         {
6154                 log(DEBUG,"Found user: %s",user->nick);
6155                 char* parameter = strtok(NULL," ");
6156                 while (parameter)
6157                 {
6158                         pars[index++] = parameter;
6159                         parameter = strtok(NULL," ");
6160                 }
6161
6162                 log(DEBUG,"Calling merge_mode2");
6163                 merge_mode2(pars,index,user);
6164         }
6165 }
6166
6167
6168 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6169 {
6170         char* nick = strtok(params," ");
6171         char* channel = strtok(NULL," :");
6172         char* reason = strtok(NULL,"\r\n");
6173         userrec* user = Find(nick);
6174         reason++;
6175         if (user)
6176         {
6177                 if (strcmp(reason,""))
6178                 {
6179                         del_channel(user,channel,reason,true);
6180                 }
6181                 else
6182                 {
6183                         del_channel(user,channel,NULL,true);
6184                 }
6185         }
6186 }
6187
6188 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6189 {
6190         char* src = strtok(params," ");
6191         char* nick = strtok(NULL," :");
6192         char* reason = strtok(NULL,"\r\n");
6193         char kreason[MAXBUF];
6194         reason++;
6195
6196         userrec* u = Find(nick);
6197         userrec* user = Find(src);
6198
6199         if ((user) && (u))
6200         {
6201                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
6202                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
6203                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
6204                 kill_link(u,kreason);
6205         }
6206 }
6207
6208 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6209 {
6210         char* nick = strtok(params," :");
6211         char* reason = strtok(NULL,"\r\n");
6212         reason++;
6213
6214         userrec* user = Find(nick);
6215
6216         if (user)
6217         {
6218                 if (strlen(reason)>MAXQUIT)
6219                 {
6220                         reason[MAXQUIT-1] = '\0';
6221                 }
6222
6223
6224                 WriteCommonExcept(user,"QUIT :%s",reason);
6225
6226                 user_hash::iterator iter = clientlist.find(user->nick);
6227
6228                 if (iter != clientlist.end())
6229                 {
6230                         log(DEBUG,"deleting user hash value %d",iter->second);
6231                         if ((iter->second) && (user->registered == 7)) {
6232                                 delete iter->second;
6233                         }
6234                         clientlist.erase(iter);
6235                 }
6236
6237                 purge_empty_chans();
6238         }
6239 }
6240
6241 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6242 {
6243         char* oldnick = strtok(params," ");
6244         char* newnick = strtok(NULL," ");
6245
6246         userrec* user = Find(oldnick);
6247
6248         if (user)
6249         {
6250                 WriteCommon(user,"NICK %s",newnick);
6251                 user = ReHashNick(user->nick, newnick);
6252                 if (!user) return;
6253                 if (!user->nick) return;
6254                 strncpy(user->nick, newnick,NICKMAX);
6255                 log(DEBUG,"new nick set: %s",user->nick);
6256         }
6257 }
6258
6259 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6260 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6261 {
6262         char* src = strtok(params," ");
6263         char* dest = strtok(NULL," ");
6264         char* channel = strtok(NULL," :");
6265         char* reason = strtok(NULL,"\r\n");
6266         reason++;
6267         userrec* s = Find(src);
6268         userrec* d = Find(dest);
6269         chanrec* c = FindChan(channel);
6270         if ((s) && (d) && (c))
6271         {
6272                 kick_channel(s,d,c,reason);
6273         }
6274 }
6275
6276 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6277 {
6278         char* who = strtok(params," :");
6279         char* text = strtok(NULL,"\r\n");
6280         text++;
6281         userrec* s = Find(who);
6282         if (s)
6283         {
6284                 WriteWallOps(s,true,text);
6285         }
6286 }
6287
6288
6289 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6290 {
6291         char* tm = strtok(params," ");
6292         char* nick = strtok(NULL," ");
6293         char* host = strtok(NULL," ");
6294         char* dhost = strtok(NULL," ");
6295         char* ident = strtok(NULL," ");
6296         char* modes = strtok(NULL," ");
6297         char* server = strtok(NULL," :");
6298         char* gecos = strtok(NULL,"\r\n");
6299         gecos++;
6300         modes++;
6301         time_t TS = atoi(tm);
6302         user_hash::iterator iter = clientlist.find(nick);
6303         if (iter != clientlist.end())
6304         {
6305                 // nick collision
6306                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6307                 if (TS >= iter->second->age)
6308                 {
6309                         char str[MAXBUF];
6310                         snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6311                         WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6312                         // client on remote server is older than the local user, kill the local user
6313                         kill_link(iter->second,str);
6314                 }
6315         }
6316         clientlist[nick] = new userrec();
6317         // remote users have an fd of -1. This is so that our Write abstraction
6318         // routines know to route any messages to this record away to whatever server
6319         // theyre on.
6320         clientlist[nick]->fd = -1;
6321         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6322         strncpy(clientlist[nick]->host, host,160);
6323         strncpy(clientlist[nick]->dhost, dhost,160);
6324         strncpy(clientlist[nick]->server, server,256);
6325         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for '~'
6326         strncpy(clientlist[nick]->fullname, gecos,128);
6327         clientlist[nick]->signon = TS;
6328         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6329         clientlist[nick]->lastping = 1;
6330         clientlist[nick]->port = 0; // so is this...
6331         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6332         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6333         for (int i = 0; i < MAXCHANS; i++)
6334         {
6335                 clientlist[nick]->chans[i].channel = NULL;
6336                 clientlist[nick]->chans[i].uc_modes = 0;
6337         }
6338 }
6339
6340 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6341 {
6342         long tdiff = time(NULL) - atoi(params);
6343         if (tdiff)
6344                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6345 }
6346
6347 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6348 {
6349         char* nick = strtok(params," :");
6350         char* gecos = strtok(NULL,"\r\n");
6351
6352         userrec* user = Find(nick);
6353
6354         if (user)
6355                 strncpy(user->fullname,gecos,MAXBUF);
6356 }
6357
6358 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6359 {
6360         char* nick = strtok(params," :");
6361         char* host = strtok(NULL,"\r\n");
6362
6363         userrec* user = Find(nick);
6364
6365         if (user)
6366                 strncpy(user->dhost,host,160);
6367 }
6368
6369 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6370 {
6371         // %s %s %d %d
6372         char* servername = strtok(params," ");
6373         char* ipaddr = strtok(NULL," ");
6374         char* ipport = strtok(NULL," ");
6375         char* cookie = strtok(NULL," ");
6376         me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
6377 }
6378
6379
6380 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6381 {
6382         // IMPORTANT NOTE
6383         // The J token currently has no timestamp - this needs looking at
6384         // because it will allow splitriding.
6385         char* nick = strtok(params," ");
6386         char* channel = strtok(NULL," ");
6387         userrec* user = Find(nick);
6388         while (channel)
6389         {
6390                 if ((user != NULL) && (strcmp(channel,"")))
6391                 {
6392                         char privilage = '\0';
6393                         if (channel[0] != '#')
6394                         {
6395                                 privilage = channel[0];
6396                                 channel++;
6397                         }
6398                         add_channel(user,channel,"",true);
6399
6400                         // now work out the privilages they should have on each channel
6401                         // and send the appropriate servermodes.
6402                         for (int i = 0; i != MAXCHANS; i++)
6403                         {
6404                                 if (user->chans[i].channel)
6405                                 {
6406                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6407                                         {
6408                                                 if (privilage == '@')
6409                                                 {
6410                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6411                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6412                                                 }
6413                                                 if (privilage == '%')
6414                                                 {
6415                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6416                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6417                                                 }
6418                                                 if (privilage == '+')
6419                                                 {
6420                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6421                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6422                                                 }
6423                                         }
6424                                 }
6425                         }
6426
6427                 }
6428                 channel = strtok(NULL," ");
6429         }
6430 }
6431
6432 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,char* ipaddr,int port)
6433 {
6434         long authcookie = rand()*rand();
6435
6436         switch(token)
6437         {
6438                 // Y <TS>
6439                 // start netburst
6440                 case 'Y':
6441                         nb_start = time(NULL);
6442                         WriteOpers("Server %s is starting netburst.",udp_host);
6443                         // now broadcast this new servers address out to all servers that are linked to us,
6444                         // except the newcomer. They'll all attempt to connect back to it.
6445                         char buffer[MAXBUF];
6446                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",udp_host,ipaddr,port,authcookie);
6447                         NetSendToAllExcept(buffer,udp_host);
6448                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
6449                         NetSendToAllExcept(buffer,udp_host);
6450                 break;
6451                 // ~
6452                 // Store authcookie
6453                 // once stored, this authcookie permits other servers to log in
6454                 // without user or password, using it.
6455                 case '~':
6456                         auth_cookies.push_back(atoi(params));
6457                         log(DEBUG,"Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
6458                 break;
6459                 // connect back to a server using an authcookie
6460                 case '+':
6461                         handle_plus(token,params,source,reply,udp_host);
6462                 break;
6463                 // ?
6464                 // ping
6465                 case '?':
6466                         reply->SendPacket("!",udp_host);
6467                 break;
6468                 // ?
6469                 // pong
6470                 case '!':
6471                 break;
6472                 // *
6473                 // no operation
6474                 case '*':
6475                 break;
6476                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6477                 // introduce remote client
6478                 case 'N':
6479                         handle_N(token,params,source,reply,udp_host);
6480                 break;
6481                 // a <NICK> :<GECOS>
6482                 // change GECOS (SETNAME)
6483                 case 'a':
6484                         handle_a(token,params,source,reply,udp_host);
6485                 break;
6486                 // b <NICK> :<HOST>
6487                 // change displayed host (SETHOST)
6488                 case 'b':
6489                         handle_b(token,params,source,reply,udp_host);
6490                 break;
6491                 // t <NICK> <CHANNEL> :<TOPIC>
6492                 // change a channel topic
6493                 case 't':
6494                         handle_t(token,params,source,reply,udp_host);
6495                 break;
6496                 // i <NICK> <CHANNEL>
6497                 // invite a user to a channel
6498                 case 'i':
6499                         handle_i(token,params,source,reply,udp_host);
6500                 break;
6501                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6502                 // kick a user from a channel
6503                 case 'k':
6504                         handle_k(token,params,source,reply,udp_host);
6505                 break;
6506                 // n <NICK> <NEWNICK>
6507                 // change nickname of client -- a server should only be able to
6508                 // change the nicknames of clients that reside on it unless
6509                 // they are ulined.
6510                 case 'n':
6511                         handle_n(token,params,source,reply,udp_host);
6512                 break;
6513                 // J <NICK> <CHANLIST>
6514                 // Join user to channel list, merge channel permissions
6515                 case 'J':
6516                         handle_J(token,params,source,reply,udp_host);
6517                 break;
6518                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6519                 // change channel topic (netburst only)
6520                 case 'T':
6521                         handle_T(token,params,source,reply,udp_host);
6522                 break;
6523                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6524                 // Server setting modes on an object
6525                 case 'M':
6526                         handle_M(token,params,source,reply,udp_host);
6527                 break;
6528                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6529                 // User setting modes on an object
6530                 case 'm':
6531                         handle_m(token,params,source,reply,udp_host);
6532                 break;
6533                 // P <SOURCE> <TARGET> :<TEXT>
6534                 // Send a private/channel message
6535                 case 'P':
6536                         handle_P(token,params,source,reply,udp_host);
6537                 break;
6538                 // V <SOURCE> <TARGET> :<TEXT>
6539                 // Send a private/channel notice
6540                 case 'V':
6541                         handle_V(token,params,source,reply,udp_host);
6542                 break;
6543                 // L <SOURCE> <CHANNEL> :<REASON>
6544                 // User parting a channel
6545                 case 'L':
6546                         handle_L(token,params,source,reply,udp_host);
6547                 break;
6548                 // Q <SOURCE> :<REASON>
6549                 // user quitting
6550                 case 'Q':
6551                         handle_Q(token,params,source,reply,udp_host);
6552                 break;
6553                 // K <SOURCE> <DEST> :<REASON>
6554                 // remote kill
6555                 case 'K':
6556                         handle_K(token,params,source,reply,udp_host);
6557                 break;
6558                 // @ <SOURCE> :<TEXT>
6559                 // wallops
6560                 case '@':
6561                         handle_AT(token,params,source,reply,udp_host);
6562                 break;
6563                 // F <TS>
6564                 // end netburst
6565                 case 'F':
6566                         WriteOpers("Server %s has completed netburst. (%d secs)",udp_host,time(NULL)-nb_start);
6567                         handle_F(token,params,source,reply,udp_host);
6568                         nb_start = 0;
6569                 break;
6570                 // X <reserved>
6571                 // Send netburst now
6572                 case 'X':
6573                         WriteOpers("Sending my netburst to %s",udp_host);
6574                         DoSync(source,udp_host);
6575                         WriteOpers("Send of netburst to %s completed",udp_host);
6576
6577                 break;
6578                 // anything else
6579                 default:
6580                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6581                 break;
6582         }
6583 }
6584
6585
6586 void handle_link_packet(char* udp_msg, char* udp_host, serverrec *serv)
6587 {
6588         char response[10240];
6589         char token = udp_msg[0];
6590         char* params = udp_msg + 2;
6591         char finalparam[1024];
6592         strcpy(finalparam," :xxxx");
6593         if (strstr(params," :")) {
6594                 strncpy(finalparam,strstr(params," :"),1024);
6595         }
6596         if (token == '-') {
6597                 char* cookie = strtok(params," ");
6598                 char* servername = strtok(NULL," ");
6599                 char* serverdesc = finalparam+2;
6600                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,udp_host);
6601                 for (int u = 0; u < auth_cookies.size(); u++)
6602                 {
6603                         if (auth_cookies[u] == atoi(cookie))
6604                         {
6605                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
6606                                 return;
6607                         }
6608                 }
6609                 WriteOpers("Bad cookie from %s!",servername);
6610                 return;
6611         }
6612         else
6613         if (token == 'S') {
6614                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6615                 char* servername = strtok(params," ");
6616                 char* password = strtok(NULL," ");
6617                 char* serverdesc = finalparam+2;
6618                 WriteOpers("CONNECT from %s (%s)",servername,udp_host);
6619
6620                 for (int j = 0; j < serv->connectors.size(); j++)
6621                 {
6622                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),udp_host))
6623                         {
6624                                 serv->connectors[j].SetServerName(servername);
6625                         }
6626                 }
6627
6628
6629                 char Link_ServerName[1024];
6630                 char Link_IPAddr[1024];
6631                 char Link_Port[1024];
6632                 char Link_Pass[1024];
6633                 char Link_SendPass[1024];
6634                 int LinkPort = 0;
6635
6636                 // search for a corresponding <link> block in the config files
6637                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6638                 {
6639                         ConfValue("link","name",i,Link_ServerName,&config_f);
6640                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6641                         ConfValue("link","port",i,Link_Port,&config_f);
6642                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6643                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6644                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6645                         LinkPort = atoi(Link_Port);
6646                         if (!strcasecmp(Link_ServerName,servername))
6647                         {
6648                                 // we have a matching link line -
6649                                 // send a 'diminutive' server message back...
6650                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6651                                 serv->SendPacket(response,servername);
6652                                 return;
6653                         }
6654                 }
6655                 char buffer[MAXBUF];
6656                 sprintf(buffer,"E :Access is denied (no matching link block)");
6657                 serv->SendPacket(buffer,udp_host);
6658                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6659                 return;
6660         }
6661         else
6662         if (token == 's') {
6663                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6664                 char* servername = strtok(params," ");
6665                 char* password = strtok(NULL," ");
6666                 char* serverdesc = finalparam+2;
6667
6668                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6669                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6670                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6671                 // a connect, so put out an oper alert!
6672
6673
6674
6675
6676                 // for now, just accept all, we'll fix that later.
6677                 WriteOpers("%s accepted our link credentials ",servername);
6678
6679                 char Link_ServerName[1024];
6680                 char Link_IPAddr[1024];
6681                 char Link_Port[1024];
6682                 char Link_Pass[1024];
6683                 char Link_SendPass[1024];
6684                 int LinkPort = 0;
6685
6686                 // search for a corresponding <link> block in the config files
6687                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6688                 {
6689                         ConfValue("link","name",i,Link_ServerName,&config_f);
6690                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6691                         ConfValue("link","port",i,Link_Port,&config_f);
6692                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6693                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6694                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6695                         LinkPort = atoi(Link_Port);
6696                         if (!strcasecmp(Link_ServerName,servername))
6697                         {
6698                                 // matching link at this end too, we're all done!
6699                                 // at this point we must begin key exchange and insert this
6700                                 // server into our 'active' table.
6701                                 for (int j = 0; j < 32; j++)
6702                                 {
6703                                         if (me[j] != NULL)
6704                                         {
6705                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6706                                                 {
6707                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6708                                                         {
6709                                                                 char buffer[MAXBUF];
6710                                                                 sprintf(buffer,"X 0");
6711                                                                 serv->SendPacket(buffer,udp_host);
6712                                                                 DoSync(serv,udp_host);
6713                                                                 return;
6714                                                         }
6715                                                 }
6716                                         }
6717                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6718                                         return;
6719                                 }
6720                         }
6721                         else {
6722                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6723                         }
6724                 }
6725                 char buffer[MAXBUF];
6726                 sprintf(buffer,"E :Access is denied (no matching link block)");
6727                 serv->SendPacket(buffer,udp_host);
6728                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6729                 return;
6730         }
6731         else
6732         if (token == 'E') {
6733                 char* error_message = finalparam+2;
6734                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
6735                 // remove this server from any lists
6736                 return;
6737         }
6738         else {
6739
6740                 serverrec* source_server = NULL;
6741
6742                 for (int j = 0; j < 32; j++)
6743                 {
6744                         if (me[j] != NULL)
6745                         {
6746                                 for (int x = 0; x < me[j]->connectors.size(); x++)
6747                                 {
6748                                         log(DEBUG,"Servers are: '%s' '%s'",udp_host,me[j]->connectors[x].GetServerName().c_str());
6749                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),udp_host))
6750                                         {
6751                                                 log(DEBUG,"match! process restricted stuff here");
6752                                                 // found a valid ircd_connector.
6753                                                 // TODO: Fix this so it only lets servers in that are in the
6754                                                 // STATE_CONNECTED state!!!
6755                                                 process_restricted_commands(token,params,me[j],serv,udp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
6756                                                 return;
6757                                         }
6758                                 }
6759                         }
6760                 }
6761
6762                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",udp_host,token);
6763         }
6764 }
6765
6766 int reap_counter = 0;
6767
6768 int InspIRCd(void)
6769 {
6770         struct sockaddr_in client, server;
6771         char addrs[MAXBUF][255];
6772         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
6773         socklen_t length;
6774         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
6775         int selectResult = 0, selectResult2 = 0;
6776         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
6777         char resolvedHost[MAXBUF];
6778         fd_set selectFds;
6779         struct timeval tv;
6780
6781         log_file = fopen("ircd.log","a+");
6782         if (!log_file)
6783         {
6784                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
6785                 Exit(ERROR);
6786         }
6787
6788         log(DEBUG,"InspIRCd: startup: begin");
6789         log(DEBUG,"$Id$");
6790         if (geteuid() == 0)
6791         {
6792                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
6793                 Exit(ERROR);
6794                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
6795         }
6796         SetupCommandTable();
6797         log(DEBUG,"InspIRCd: startup: default command table set up");
6798
6799         ReadConfig();
6800         if (strcmp(DieValue,""))
6801         {
6802                 printf("WARNING: %s\n\n",DieValue);
6803                 exit(0);
6804         }
6805         log(DEBUG,"InspIRCd: startup: read config");
6806
6807         int count2 = 0, count3 = 0;
6808
6809         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
6810         {
6811                 ConfValue("bind","port",count,configToken,&config_f);
6812                 ConfValue("bind","address",count,Addr,&config_f);
6813                 ConfValue("bind","type",count,Type,&config_f);
6814                 if (!strcmp(Type,"servers"))
6815                 {
6816                         char Default[MAXBUF];
6817                         strcpy(Default,"no");
6818                         ConfValue("bind","default",count,Default,&config_f);
6819                         if (strchr(Default,'y'))
6820                         {
6821                                 defaultRoute = count3;
6822                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
6823                         }
6824                         me[count3] = new serverrec(ServerName,100L,false);
6825                         me[count3]->CreateListener(Addr,atoi(configToken));
6826                         count3++;
6827                 }
6828                 else
6829                 {
6830                         ports[count2] = atoi(configToken);
6831                         strcpy(addrs[count2],Addr);
6832                         count2++;
6833                 }
6834                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
6835         }
6836         portCount = count2;
6837         UDPportCount = count3;
6838
6839         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
6840
6841         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
6842
6843         printf("\n");
6844
6845         /* BugFix By Craig! :p */
6846         count = 0;
6847         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
6848         {
6849                 char modfile[MAXBUF];
6850                 ConfValue("module","name",count2,configToken,&config_f);
6851                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
6852                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
6853                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
6854                 /* If The File Doesnt exist, Trying to load it
6855                  * Will Segfault the IRCd.. So, check to see if
6856                  * it Exists, Before Proceeding. */
6857                 if (FileExists(modfile))
6858                 {
6859                         factory[count] = new ircd_module(modfile);
6860                         if (factory[count]->LastError())
6861                         {
6862                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
6863                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
6864                                 Exit(ERROR);
6865                         }
6866                         if (factory[count]->factory)
6867                         {
6868                                 modules[count] = factory[count]->factory->CreateModule();
6869                                 /* save the module and the module's classfactory, if
6870                                  * this isnt done, random crashes can occur :/ */
6871                                 module_names.push_back(modfile);
6872                         }
6873                         else
6874                         {
6875                                 log(DEBUG,"Unable to load %s",modfile);
6876                                 sprintf("Unable to load %s\nExiting...\n",modfile);
6877                                 Exit(ERROR);
6878                         }
6879                         /* Increase the Count */
6880                         count++;
6881                 }
6882                 else
6883                 {
6884                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
6885                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
6886                 }
6887         }
6888         MODCOUNT = count - 1;
6889         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
6890
6891         printf("\nInspIRCd is now running!\n");
6892
6893         startup_time = time(NULL);
6894
6895         if (nofork)
6896         {
6897                 log(VERBOSE,"Not forking as -nofork was specified");
6898         }
6899         else
6900         {
6901                 if (DaemonSeed() == ERROR)
6902                 {
6903                         log(DEBUG,"InspIRCd: startup: can't daemonise");
6904                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
6905                         Exit(ERROR);
6906                 }
6907         }
6908
6909
6910         /* setup select call */
6911         FD_ZERO(&selectFds);
6912         log(DEBUG,"InspIRCd: startup: zero selects");
6913         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
6914
6915         for (count = 0; count < portCount; count++)
6916         {
6917                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
6918                 {
6919                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
6920                         return(ERROR);
6921                 }
6922                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
6923                 {
6924                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
6925                 }
6926                 else    /* well we at least bound to one socket so we'll continue */
6927                 {
6928                         boundPortCount++;
6929                 }
6930         }
6931
6932         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
6933
6934         /* if we didn't bind to anything then abort */
6935         if (boundPortCount == 0)
6936         {
6937                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
6938                 return (ERROR);
6939         }
6940
6941
6942         length = sizeof (client);
6943         char udp_msg[MAXBUF], udp_host[MAXBUF];
6944
6945         /* main loop, this never returns */
6946         for (;;)
6947         {
6948
6949                 fd_set sfd;
6950                 timeval tval;
6951                 FD_ZERO(&sfd);
6952
6953                 user_hash::iterator count2 = clientlist.begin();
6954
6955                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
6956                 // them in a list, then reap the list every second or so.
6957                 if (reap_counter>5000)
6958                 {
6959                         if (fd_reap.size() > 0)
6960                         {
6961                                 for( int n = 0; n < fd_reap.size(); n++)
6962                                 {
6963                                         Blocking(fd_reap[n]);
6964                                         close(fd_reap[n]);
6965                                         NonBlocking(fd_reap[n]);
6966                                 }
6967                         }
6968                         fd_reap.clear();
6969                         reap_counter=0;
6970                 }
6971
6972                 fd_set serverfds;
6973                 FD_ZERO(&serverfds);
6974                 timeval tvs;
6975
6976                 for (int x = 0; x != UDPportCount; x++)
6977                 {
6978                         FD_SET(me[x]->fd, &serverfds);
6979                 }
6980
6981                 tvs.tv_usec = 0;
6982                 tvs.tv_sec = 0;
6983
6984                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
6985                 if (servresult > 0)
6986                 {
6987                         for (int x = 0; x != UDPportCount; x++)
6988                         {
6989                                 if (FD_ISSET (me[x]->fd, &serverfds))
6990                                 {
6991                                         char remotehost[MAXBUF];
6992                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
6993                                         strncpy (remotehost,(char *) inet_ntoa (client.sin_addr),MAXBUF);
6994                                         // add to this connections ircd_connector vector
6995                                         me[x]->AddIncoming(incomingSockfd,remotehost,ntohs(client.sin_port));
6996                                 }
6997                         }
6998                 }
6999
7000                 for (int x = 0; x < UDPportCount; x++)
7001                 {
7002                         std::deque<std::string> msgs;
7003                         msgs.clear();
7004                         if (me[x]->RecvPacket(msgs, udp_host))
7005                         {
7006                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
7007                                 {
7008                                         char udp_msg[MAXBUF];
7009                                         strncpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
7010                                         if (strlen(udp_msg)<1)
7011                                         {
7012                                                 log(DEBUG,"Invalid string from %s [route%d]",udp_host,x);
7013                                                 break;
7014                                         }
7015                                         // during a netburst, send all data to all other linked servers
7016                                         if ((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
7017                                         {
7018                                                 NetSendToAllExcept(udp_msg,udp_host);
7019                                         }
7020                                         FOREACH_MOD OnPacketReceive(udp_msg);
7021                                         handle_link_packet(udp_msg, udp_host, me[x]);
7022                                 }
7023                                 goto label;
7024                         }
7025                 }
7026
7027
7028         while (count2 != clientlist.end())
7029         {
7030                 char data[10240];
7031                 tval.tv_usec = tval.tv_sec = 0;
7032                 FD_ZERO(&sfd);
7033                 int total_in_this_set = 0;
7034
7035                 user_hash::iterator xcount = count2;
7036                 user_hash::iterator endingiter = count2;
7037
7038                 if (!count2->second) break;
7039
7040                 if (count2->second)
7041                 if (count2->second->fd != 0)
7042                 {
7043                         // assemble up to 64 sockets into an fd_set
7044                         // to implement a pooling mechanism.
7045                         //
7046                         // This should be up to 64x faster than the
7047                         // old implementation.
7048                         while (total_in_this_set < 64)
7049                         {
7050                                 if (count2 != clientlist.end())
7051                                 {
7052                                         // we don't check the state of remote users.
7053                                         if (count2->second->fd > 0)
7054                                         {
7055                                                 FD_SET (count2->second->fd, &sfd);
7056
7057                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
7058                                                 // their connection class.
7059                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
7060                                                 {
7061                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
7062                                                         kill_link(count2->second,"Registration timeout");
7063                                                         goto label;
7064                                                 }
7065                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
7066                                                 {
7067                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
7068                                                         {
7069                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
7070                                                                 kill_link(count2->second,"Ping timeout");
7071                                                                 goto label;
7072                                                         }
7073                                                         Write(count2->second->fd,"PING :%s",ServerName);
7074                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
7075                                                         count2->second->lastping = 0;
7076                                                         count2->second->nping = time(NULL)+120;
7077                                                 }
7078                                         }
7079                                         count2++;
7080                                         total_in_this_set++;
7081                                 }
7082                                 else break;
7083                         }
7084
7085                         endingiter = count2;
7086                         count2 = xcount; // roll back to where we were
7087
7088                         int v = 0;
7089
7090                         tval.tv_usec = 0;
7091                         tval.tv_sec = 0;
7092                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7093
7094                         // now loop through all of the items in this pool if any are waiting
7095                         //if (selectResult2 > 0)
7096                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7097                         {
7098                                 result = EAGAIN;
7099                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7100                                 {
7101                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7102                                         memset(data, 0, 10240);
7103                                         result = read(count2a->second->fd, data, 10240);
7104
7105                                         if (result)
7106                                         {
7107                                                 log(DEBUG,"Read %d characters from socket",result);
7108                                                 userrec* current = count2a->second;
7109                                                 int currfd = current->fd;
7110                                                 char* l = strtok(data,"\n");
7111                                                 int floodlines = 0;
7112                                                 while (l)
7113                                                 {
7114                                                         floodlines++;
7115                                                         if ((floodlines > current->flood) && (current->flood != 0))
7116                                                         {
7117                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7118                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7119                                                                 kill_link(current,"Excess flood");
7120                                                                 goto label;
7121                                                         }
7122                                                         char sanitized[NetBufferSize];
7123                                                         memset(sanitized, 0, NetBufferSize);
7124                                                         int ptt = 0;
7125                                                         for (int pt = 0; pt < strlen(l); pt++)
7126                                                         {
7127                                                                 if (l[pt] != '\r')
7128                                                                 {
7129                                                                         sanitized[ptt++] = l[pt];
7130                                                                 }
7131                                                         }
7132                                                         sanitized[ptt] = '\0';
7133                                                         if (strlen(sanitized))
7134                                                         {
7135
7136
7137                                                                 // we're gonna re-scan to check if the nick is gone, after every
7138                                                                 // command - if it has, we're gonna bail
7139                                                                 bool find_again = false;
7140                                                                 process_buffer(sanitized,current);
7141
7142                                                                 // look for the user's record in case it's changed
7143                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7144                                                                 {
7145                                                                         if (c2->second->fd == currfd)
7146                                                                         {
7147                                                                                 // found again, update pointer
7148                                                                                 current == c2->second;
7149                                                                                 find_again = true;
7150                                                                                 break;
7151                                                                         }
7152                                                                 }
7153                                                                 if (!find_again)
7154                                                                         goto label;
7155
7156                                                         }
7157                                                         l = strtok(NULL,"\n");
7158                                                 }
7159                                                 goto label;
7160                                         }
7161
7162                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7163                                         {
7164                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7165                                                 kill_link(count2a->second,strerror(errno));
7166                                                 goto label;
7167                                         }
7168                                 }
7169                                 // result EAGAIN means nothing read
7170                                 if (result == EAGAIN)
7171                                 {
7172                                 }
7173                                 else
7174                                 if (result == 0)
7175                                 {
7176                                         if (count2->second)
7177                                         {
7178                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7179                                                 kill_link(count2a->second,"Client exited");
7180                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7181                                                 log(DEBUG,"Bailing from client exit");
7182                                                 goto label;
7183                                         }
7184                                 }
7185                                 else if (result > 0)
7186                                 {
7187                                 }
7188                         }
7189                 }
7190                 for (int q = 0; q < total_in_this_set; q++)
7191                 {
7192                         // there is no iterator += operator :(
7193                         //if (count2 != clientlist.end())
7194                         //{
7195                                 count2++;
7196                         //}
7197                 }
7198         }
7199
7200         // set up select call
7201         for (count = 0; count < boundPortCount; count++)
7202         {
7203                 FD_SET (openSockfd[count], &selectFds);
7204         }
7205
7206         reap_counter++;
7207         tv.tv_usec = 1;
7208         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7209
7210         /* select is reporting a waiting socket. Poll them all to find out which */
7211         if (selectResult > 0)
7212         {
7213                 char target[MAXBUF], resolved[MAXBUF];
7214                 for (count = 0; count < boundPortCount; count++)
7215                 {
7216                         if (FD_ISSET (openSockfd[count], &selectFds))
7217                         {
7218                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7219
7220                                 address_cache::iterator iter = IP.find(client.sin_addr);
7221                                 bool iscached = false;
7222                                 if (iter == IP.end())
7223                                 {
7224                                         /* ip isn't in cache, add it */
7225                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7226                                         if(CleanAndResolve(resolved, target) != TRUE)
7227                                         {
7228                                                 strncpy(resolved,target,MAXBUF);
7229                                         }
7230                                         /* hostname now in 'target' */
7231                                         IP[client.sin_addr] = new string(resolved);
7232                                         /* hostname in cache */
7233                                 }
7234                                 else
7235                                 {
7236                                         /* found ip (cached) */
7237                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7238                                         iscached = true;
7239                                 }
7240
7241                                 if (incomingSockfd < 0)
7242                                 {
7243                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7244                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7245                                 }
7246                                 else
7247                                 {
7248                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7249                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7250                                 }
7251                                 goto label;
7252                         }
7253                 }
7254         }
7255         label:
7256         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7257 }
7258 /* not reached */
7259 close (incomingSockfd);
7260 }
7261