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         log(DEBUG,"NetSendToCommon: '%s' '%s'",u->nick,s);
 896
 897         for (int j = 0; j < 32; j++)
 898         {
 899                 if (me[j] != NULL)
 900                 {
 901                         for (int k = 0; k < me[j]->connectors.size(); k++)
 902                         {
 903                                 if (CommonOnThisServer(u,me[j]->connectors[k].GetServerName().c_str()))
 904                                 {
 905                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 906                                 }
 907                         }
 908                 }
 909         }
 910 }
 911
 912
 913 void NetSendToAll(char* s)
 914 {
 915         char buffer[MAXBUF];
 916         snprintf(buffer,MAXBUF,"%s",s);
 917
 918         log(DEBUG,"NetSendToAll: '%s'",s);
 919
 920         for (int j = 0; j < 32; j++)
 921         {
 922                 if (me[j] != NULL)
 923                 {
 924                         for (int k = 0; k < me[j]->connectors.size(); k++)
 925                         {
 926                                 me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 927                         }
 928                 }
 929         }
 930 }
 931
 932 void NetSendToAllAlive(char* s)
 933 {
 934         char buffer[MAXBUF];
 935         snprintf(buffer,MAXBUF,"%s",s);
 936
 937         log(DEBUG,"NetSendToAllAlive: '%s'",s);
 938
 939         for (int j = 0; j < 32; j++)
 940         {
 941                 if (me[j] != NULL)
 942                 {
 943                         for (int k = 0; k < me[j]->connectors.size(); k++)
 944                         {
 945                                 if (me[j]->connectors[k].GetState() != STATE_DISCONNECTED)
 946                                 {
 947                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 948                                 }
 949                                 else
 950                                 {
 951                                         log(DEBUG,"%s is dead, not sending to it.",me[j]->connectors[k].GetServerName().c_str());
 952                                 }
 953                         }
 954                 }
 955         }
 956 }
 957
 958
 959 void NetSendToOne(char* target,char* s)
 960 {
 961         char buffer[MAXBUF];
 962         snprintf(buffer,MAXBUF,"%s",s);
 963
 964         log(DEBUG,"NetSendToOne: '%s' '%s'",target,s);
 965
 966         for (int j = 0; j < 32; j++)
 967         {
 968                 if (me[j] != NULL)
 969                 {
 970                         for (int k = 0; k < me[j]->connectors.size(); k++)
 971                         {
 972                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 973                                 {
 974                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 975                                 }
 976                         }
 977                 }
 978         }
 979 }
 980
 981 void NetSendToAllExcept(const char* target,char* s)
 982 {
 983         char buffer[MAXBUF];
 984         snprintf(buffer,MAXBUF,"%s",s);
 985
 986         log(DEBUG,"NetSendToAllExcept: '%s' '%s'",target,s);
 987
 988         for (int j = 0; j < 32; j++)
 989         {
 990                 if (me[j] != NULL)
 991                 {
 992                         for (int k = 0; k < me[j]->connectors.size(); k++)
 993                         {
 994                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),target))
 995                                 {
 996                                         me[j]->SendPacket(buffer,me[j]->connectors[k].GetServerName().c_str());
 997                                 }
 998                         }
 999                 }
1000         }
1001 }
1002
1003
1004 bool hasumode(userrec* user, char mode)
1005 {
1006         if (user)
1007         {
1008                 return (strchr(user->modes,mode)>0);
1009         }
1010         else return false;
1011 }
1012
1013 void WriteMode(const char* modes, int flags, const char* text, ...)
1014 {
1015         if ((!text) || (!modes) || (!flags))
1016         {
1017                 log(DEFAULT,"*** BUG *** WriteMode was given an invalid parameter");
1018                 return;
1019         }
1020
1021         char textbuffer[MAXBUF];
1022         va_list argsPtr;
1023         va_start (argsPtr, text);
1024         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1025         va_end(argsPtr);
1026
1027         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1028         {
1029                 if (i->second)
1030                 {
1031                         bool send_to_user = false;
1032
1033                         if (flags == WM_AND)
1034                         {
1035                                 send_to_user = true;
1036                                 for (int n = 0; n < strlen(modes); n++)
1037                                 {
1038                                         if (!hasumode(i->second,modes[n]))
1039                                         {
1040                                                 send_to_user = false;
1041                                                 break;
1042                                         }
1043                                 }
1044                         }
1045                         else if (flags == WM_OR)
1046                         {
1047                                 send_to_user = false;
1048                                 for (int n = 0; n < strlen(modes); n++)
1049                                 {
1050                                         if (hasumode(i->second,modes[n]))
1051                                         {
1052                                                 send_to_user = true;
1053                                                 break;
1054                                         }
1055                                 }
1056                         }
1057
1058                         if (send_to_user)
1059                         {
1060                                 WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,textbuffer);
1061                         }
1062                 }
1063         }
1064 }
1065
1066 void ChangeName(userrec* user, const char* gecos)
1067 {
1068         strncpy(user->fullname,gecos,MAXBUF);
1069
1070         // TODO: replace these with functions:
1071         // NetSendToAll - to all
1072         // NetSendToCommon - to all that hold users sharing a common channel with another user
1073         // NetSendToOne - to one server
1074         // NetSendToAllExcept - send to all but one
1075         // all by servername
1076
1077         char buffer[MAXBUF];
1078         snprintf(buffer,MAXBUF,"a %s :%s",user->nick,gecos);
1079         NetSendToAll(buffer);
1080 }
1081
1082 void ChangeDisplayedHost(userrec* user, const char* host)
1083 {
1084         strncpy(user->dhost,host,160);
1085         char buffer[MAXBUF];
1086         snprintf(buffer,MAXBUF,"b %s :%s",user->nick,host);
1087         NetSendToAll(buffer);
1088 }
1089
1090 void WriteWallOps(userrec *source, bool local_only, char* text, ...)
1091 {
1092         if ((!text) || (!source))
1093         {
1094                 log(DEFAULT,"*** BUG *** WriteOpers was given an invalid parameter");
1095                 return;
1096         }
1097
1098         int i = 0;
1099         char textbuffer[MAXBUF];
1100         va_list argsPtr;
1101         va_start (argsPtr, text);
1102         vsnprintf(textbuffer, MAXBUF, text, argsPtr);
1103         va_end(argsPtr);
1104
1105         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1106         {
1107                 if (i->second)
1108                 {
1109                         if (strchr(i->second->modes,'w'))
1110                         {
1111                                 WriteTo(source,i->second,"WALLOPS %s",textbuffer);
1112                         }
1113                 }
1114         }
1115
1116         if (!local_only)
1117         {
1118                 char buffer[MAXBUF];
1119                 snprintf(buffer,MAXBUF,"@ %s :%s",source->nick,textbuffer);
1120                 NetSendToAll(buffer);
1121         }
1122 }
1123
1124 /* convert a string to lowercase. Note following special circumstances
1125  * taken from RFC 1459. Many "official" server branches still hold to this
1126  * rule so i will too;
1127  *
1128  *  Because of IRC's scandanavian origin, the characters {}| are
1129  *  considered to be the lower case equivalents of the characters []\,
1130  *  respectively. This is a critical issue when determining the
1131  *  equivalence of two nicknames.
1132  */
1133
1134 void strlower(char *n)
1135 {
1136         if (!n)
1137         {
1138                 return;
1139         }
1140         for (int i = 0; i != strlen(n); i++)
1141         {
1142                 n[i] = tolower(n[i]);
1143                 if (n[i] == '[')
1144                         n[i] = '{';
1145                 if (n[i] == ']')
1146                         n[i] = '}';
1147                 if (n[i] == '\\')
1148                         n[i] = '|';
1149         }
1150 }
1151
1152 /* verify that a user's ident and nickname is valid */
1153
1154 int isident(const char* n)
1155 {
1156         char v[MAXBUF];
1157         if (!n)
1158
1159         {
1160                 return 0;
1161         }
1162         if (!strcmp(n,""))
1163         {
1164                 return 0;
1165         }
1166         for (int i = 0; i != strlen(n); i++)
1167         {
1168                 if ((n[i] < 33) || (n[i] > 125))
1169                 {
1170                         return 0;
1171                 }
1172                 /* can't occur ANYWHERE in an Ident! */
1173                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1174                 {
1175                         return 0;
1176                 }
1177         }
1178         return 1;
1179 }
1180
1181
1182 int isnick(const char* n)
1183 {
1184         int i = 0;
1185         char v[MAXBUF];
1186         if (!n)
1187         {
1188                 return 0;
1189         }
1190         if (!strcmp(n,""))
1191         {
1192                 return 0;
1193         }
1194         if (strlen(n) > NICKMAX-1)
1195         {
1196                 return 0;
1197         }
1198         for (int i = 0; i != strlen(n); i++)
1199         {
1200                 if ((n[i] < 33) || (n[i] > 125))
1201                 {
1202                         return 0;
1203                 }
1204                 /* can't occur ANYWHERE in a nickname! */
1205                 if (strchr("<>,./?:;@'~#=+()*&%$£ \"!",n[i]))
1206                 {
1207                         return 0;
1208                 }
1209                 /* can't occur as the first char of a nickname... */
1210                 if ((strchr("0123456789",n[i])) && (!i))
1211                 {
1212                         return 0;
1213                 }
1214         }
1215         return 1;
1216 }
1217
1218 /* Find a user record by nickname and return a pointer to it */
1219
1220 userrec* Find(string nick)
1221 {
1222         user_hash::iterator iter = clientlist.find(nick);
1223
1224         if (iter == clientlist.end())
1225                 /* Couldn't find it */
1226                 return NULL;
1227
1228         return iter->second;
1229 }
1230
1231 void update_stats_l(int fd,int data_out) /* add one line-out to stats L for this fd */
1232 {
1233         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1234         {
1235                 if (i->second)
1236                 {
1237                         if (i->second->fd == fd)
1238                         {
1239                                 i->second->bytes_out+=data_out;
1240                                 i->second->cmds_out++;
1241                         }
1242                 }
1243         }
1244 }
1245
1246
1247 /* find a channel record by channel name and return a pointer to it */
1248
1249 chanrec* FindChan(const char* chan)
1250 {
1251         if (!chan)
1252         {
1253                 log(DEFAULT,"*** BUG *** Findchan was given an invalid parameter");
1254                 return NULL;
1255         }
1256
1257         chan_hash::iterator iter = chanlist.find(chan);
1258
1259         if (iter == chanlist.end())
1260                 /* Couldn't find it */
1261                 return NULL;
1262
1263         return iter->second;
1264 }
1265
1266
1267 void purge_empty_chans(void)
1268 {
1269         int go_again = 1, purge = 0;
1270
1271         while (go_again)
1272         {
1273                 go_again = 0;
1274                 for (chan_hash::iterator i = chanlist.begin(); i != chanlist.end(); i++)
1275                 {
1276                         if (i->second) {
1277                                 if (!usercount(i->second))
1278                                 {
1279                                         /* kill the record */
1280                                         if (i != chanlist.end())
1281                                         {
1282                                                 log(DEBUG,"del_channel: destroyed: %s",i->second->name);
1283                                                 delete i->second;
1284                                                 chanlist.erase(i);
1285                                                 go_again = 1;
1286                                                 purge++;
1287                                                 break;
1288                                         }
1289                                 }
1290                                 else
1291                                 {
1292                                         log(DEBUG,"skipped purge for %s",i->second->name);
1293                                 }
1294                         }
1295                 }
1296         }
1297         log(DEBUG,"completed channel purge, killed %d",purge);
1298 }
1299
1300 /* returns the status character for a given user on a channel, e.g. @ for op,
1301  * % for halfop etc. If the user has several modes set, the highest mode
1302  * the user has must be returned. */
1303
1304 char* cmode(userrec *user, chanrec *chan)
1305 {
1306         if ((!user) || (!chan))
1307         {
1308                 log(DEFAULT,"*** BUG *** cmode was given an invalid parameter");
1309                 return "";
1310         }
1311
1312         int i;
1313         for (int i = 0; i != MAXCHANS; i++)
1314         {
1315                 if ((user->chans[i].channel == chan) && (chan != NULL))
1316                 {
1317                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1318                         {
1319                                 return "@";
1320                         }
1321                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1322                         {
1323                                 return "%";
1324                         }
1325                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1326                         {
1327                                 return "+";
1328                         }
1329                         return "";
1330                 }
1331         }
1332 }
1333
1334 char scratch[MAXBUF];
1335 char sparam[MAXBUF];
1336
1337 char* chanmodes(chanrec *chan)
1338 {
1339         if (!chan)
1340         {
1341                 log(DEFAULT,"*** BUG *** chanmodes was given an invalid parameter");
1342                 strcpy(scratch,"");
1343                 return scratch;
1344         }
1345
1346         strcpy(scratch,"");
1347         strcpy(sparam,"");
1348         if (chan->noexternal)
1349         {
1350                 strncat(scratch,"n",MAXMODES);
1351         }
1352         if (chan->topiclock)
1353         {
1354                 strncat(scratch,"t",MAXMODES);
1355         }
1356         if (strcmp(chan->key,""))
1357         {
1358                 strncat(scratch,"k",MAXMODES);
1359         }
1360         if (chan->limit)
1361         {
1362                 strncat(scratch,"l",MAXMODES);
1363         }
1364         if (chan->inviteonly)
1365         {
1366                 strncat(scratch,"i",MAXMODES);
1367         }
1368         if (chan->moderated)
1369         {
1370                 strncat(scratch,"m",MAXMODES);
1371         }
1372         if (chan->secret)
1373         {
1374                 strncat(scratch,"s",MAXMODES);
1375         }
1376         if (chan->c_private)
1377         {
1378                 strncat(scratch,"p",MAXMODES);
1379         }
1380         if (strcmp(chan->key,""))
1381         {
1382                 strncat(sparam,chan->key,MAXBUF);
1383         }
1384         if (chan->limit)
1385         {
1386                 char foo[24];
1387                 sprintf(foo," %d",chan->limit);
1388                 strncat(sparam,foo,MAXBUF);
1389         }
1390         if (strlen(chan->custom_modes))
1391         {
1392                 strncat(scratch,chan->custom_modes,MAXMODES);
1393                 for (int z = 0; z < strlen(chan->custom_modes); z++)
1394                 {
1395                         std::string extparam = chan->GetModeParameter(chan->custom_modes[z]);
1396                         if (extparam != "")
1397                         {
1398                                 strncat(sparam," ",MAXBUF);
1399                                 strncat(sparam,extparam.c_str(),MAXBUF);
1400                         }
1401                 }
1402         }
1403         log(DEBUG,"chanmodes: %s %s%s",chan->name,scratch,sparam);
1404         strncat(scratch,sparam,MAXMODES);
1405         return scratch;
1406 }
1407
1408 /* returns the status value for a given user on a channel, e.g. STATUS_OP for
1409  * op, STATUS_VOICE for voice etc. If the user has several modes set, the
1410  * highest mode the user has must be returned. */
1411
1412 int cstatus(userrec *user, chanrec *chan)
1413 {
1414         if ((!chan) || (!user))
1415         {
1416                 log(DEFAULT,"*** BUG *** cstatus was given an invalid parameter");
1417                 return 0;
1418         }
1419
1420         for (int i = 0; i != MAXCHANS; i++)
1421         {
1422                 if ((user->chans[i].channel == chan) && (chan != NULL))
1423                 {
1424                         if ((user->chans[i].uc_modes & UCMODE_OP) > 0)
1425                         {
1426                                 return STATUS_OP;
1427                         }
1428                         if ((user->chans[i].uc_modes & UCMODE_HOP) > 0)
1429                         {
1430                                 return STATUS_HOP;
1431                         }
1432                         if ((user->chans[i].uc_modes & UCMODE_VOICE) > 0)
1433                         {
1434                                 return STATUS_VOICE;
1435                         }
1436                         return STATUS_NORMAL;
1437                 }
1438         }
1439 }
1440
1441
1442 /* compile a userlist of a channel into a string, each nick seperated by
1443  * spaces and op, voice etc status shown as @ and + */
1444
1445 void userlist(userrec *user,chanrec *c)
1446 {
1447         if ((!c) || (!user))
1448         {
1449                 log(DEFAULT,"*** BUG *** userlist was given an invalid parameter");
1450                 return;
1451         }
1452
1453         sprintf(list,"353 %s = %s :", user->nick, c->name);
1454         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1455         {
1456                 if (has_channel(i->second,c))
1457                 {
1458                         if (isnick(i->second->nick))
1459                         {
1460                                 if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1461                                 {
1462                                         /* user is +i, and source not on the channel, does not show
1463                                          * nick in NAMES list */
1464                                         continue;
1465                                 }
1466                                 strcat(list,cmode(i->second,c));
1467                                 strcat(list,i->second->nick);
1468                                 strcat(list," ");
1469                                 if (strlen(list)>(480-NICKMAX))
1470                                 {
1471                                         /* list overflowed into
1472                                          * multiple numerics */
1473                                         WriteServ(user->fd,list);
1474                                         sprintf(list,"353 %s = %s :", user->nick, c->name);
1475                                 }
1476                         }
1477                 }
1478         }
1479         /* if whats left in the list isnt empty, send it */
1480         if (list[strlen(list)-1] != ':')
1481         {
1482                 WriteServ(user->fd,list);
1483         }
1484 }
1485
1486 /* return a count of the users on a specific channel accounting for
1487  * invisible users who won't increase the count. e.g. for /LIST */
1488
1489 int usercount_i(chanrec *c)
1490 {
1491         int i = 0;
1492         int count = 0;
1493
1494         if (!c)
1495         {
1496                 log(DEFAULT,"*** BUG *** usercount_i was given an invalid parameter");
1497                 return 0;
1498         }
1499
1500         strcpy(list,"");
1501         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1502         {
1503                 if (i->second)
1504                 {
1505                         if (has_channel(i->second,c))
1506                         {
1507                                 if (isnick(i->second->nick))
1508                                 {
1509                                         if ((!has_channel(i->second,c)) && (strchr(i->second->modes,'i')))
1510                                         {
1511                                                 /* user is +i, and source not on the channel, does not show
1512                                                  * nick in NAMES list */
1513                                                 continue;
1514                                         }
1515                                         count++;
1516                                 }
1517                         }
1518                 }
1519         }
1520         log(DEBUG,"usercount_i: %s %d",c->name,count);
1521         return count;
1522 }
1523
1524
1525 int usercount(chanrec *c)
1526 {
1527         int i = 0;
1528         int count = 0;
1529
1530         if (!c)
1531         {
1532                 log(DEFAULT,"*** BUG *** usercount was given an invalid parameter");
1533                 return 0;
1534         }
1535
1536         strcpy(list,"");
1537         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
1538         {
1539                 if (i->second)
1540                 {
1541                         if (has_channel(i->second,c))
1542                         {
1543                                 if ((isnick(i->second->nick)) && (i->second->registered == 7))
1544                                 {
1545                                         count++;
1546                                 }
1547                         }
1548                 }
1549         }
1550         log(DEBUG,"usercount: %s %d",c->name,count);
1551         return count;
1552 }
1553
1554
1555 /* add a channel to a user, creating the record for it if needed and linking
1556  * it to the user record */
1557
1558 chanrec* add_channel(userrec *user, const char* cn, const char* key, bool override)
1559 {
1560         if ((!user) || (!cn))
1561         {
1562                 log(DEFAULT,"*** BUG *** add_channel was given an invalid parameter");
1563                 return 0;
1564         }
1565
1566         int i = 0;
1567         chanrec* Ptr;
1568         int created = 0;
1569         char cname[MAXBUF];
1570
1571         strncpy(cname,cn,MAXBUF);
1572
1573         // we MUST declare this wherever we use FOREACH_RESULT
1574         int MOD_RESULT = 0;
1575
1576         if (strlen(cname) > CHANMAX-1)
1577         {
1578                 cname[CHANMAX-1] = '\0';
1579         }
1580
1581         log(DEBUG,"add_channel: %s %s",user->nick,cname);
1582
1583         if ((FindChan(cname)) && (has_channel(user,FindChan(cname))))
1584         {
1585                 return NULL; // already on the channel!
1586         }
1587
1588
1589         if (!FindChan(cname))
1590         {
1591                 FOREACH_RESULT(OnUserPreJoin(user,NULL,cname));
1592                 if (MOD_RESULT) {
1593                         return NULL;
1594                 }
1595
1596                 /* create a new one */
1597                 log(DEBUG,"add_channel: creating: %s",cname);
1598                 {
1599                         chanlist[cname] = new chanrec();
1600
1601                         strcpy(chanlist[cname]->name, cname);
1602                         chanlist[cname]->topiclock = 1;
1603                         chanlist[cname]->noexternal = 1;
1604                         chanlist[cname]->created = time(NULL);
1605                         strcpy(chanlist[cname]->topic, "");
1606                         strncpy(chanlist[cname]->setby, user->nick,NICKMAX);
1607                         chanlist[cname]->topicset = 0;
1608                         Ptr = chanlist[cname];
1609                         log(DEBUG,"add_channel: created: %s",cname);
1610                         /* set created to 2 to indicate user
1611                          * is the first in the channel
1612                          * and should be given ops */
1613                         created = 2;
1614                 }
1615         }
1616         else
1617         {
1618                 /* channel exists, just fish out a pointer to its struct */
1619                 Ptr = FindChan(cname);
1620                 if (Ptr)
1621                 {
1622                         log(DEBUG,"add_channel: joining to: %s",Ptr->name);
1623
1624                         // the override flag allows us to bypass channel modes
1625                         // and bans (used by servers)
1626                         if (!override)
1627                         {
1628                                 FOREACH_RESULT(OnUserPreJoin(user,Ptr,cname));
1629                                 if (MOD_RESULT) {
1630                                         return NULL;
1631                                 }
1632
1633                                 if (strcmp(Ptr->key,""))
1634                                 {
1635                                         log(DEBUG,"add_channel: %s has key %s",Ptr->name,Ptr->key);
1636                                         if (!key)
1637                                         {
1638                                                 log(DEBUG,"add_channel: no key given in JOIN");
1639                                                 WriteServ(user->fd,"475 %s %s :Cannot join channel (Requires key)",user->nick, Ptr->name);
1640                                                 return NULL;
1641                                         }
1642                                         else
1643                                         {
1644                                                 log(DEBUG,"key at %p is %s",key,key);
1645                                                 if (strcasecmp(key,Ptr->key))
1646                                                 {
1647                                                         log(DEBUG,"add_channel: bad key given in JOIN");
1648                                                         WriteServ(user->fd,"475 %s %s :Cannot join channel (Incorrect key)",user->nick, Ptr->name);
1649                                                         return NULL;
1650                                                 }
1651                                         }
1652                                 }
1653                                 log(DEBUG,"add_channel: no key");
1654
1655                                 if (Ptr->inviteonly)
1656                                 {
1657                                         log(DEBUG,"add_channel: channel is +i");
1658                                         if (user->IsInvited(Ptr->name))
1659                                         {
1660                                                 /* user was invited to channel */
1661                                                 /* there may be an optional channel NOTICE here */
1662                                         }
1663                                         else
1664                                         {
1665                                                 WriteServ(user->fd,"473 %s %s :Cannot join channel (Invite only)",user->nick, Ptr->name);
1666                                                 return NULL;
1667                                         }
1668                                 }
1669                                 log(DEBUG,"add_channel: channel is not +i");
1670
1671                                 if (Ptr->limit)
1672                                 {
1673                                         if (usercount(Ptr) == Ptr->limit)
1674                                         {
1675                                                 WriteServ(user->fd,"471 %s %s :Cannot join channel (Channel is full)",user->nick, Ptr->name);
1676                                                 return NULL;
1677                                         }
1678                                 }
1679
1680                                 log(DEBUG,"add_channel: about to walk banlist");
1681
1682                                 /* check user against the channel banlist */
1683                                 if (Ptr)
1684                                 {
1685                                         if (Ptr->bans.size())
1686                                         {
1687                                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1688                                                 {
1689                                                         if (match(user->GetFullHost(),i->data))
1690                                                         {
1691                                                                 WriteServ(user->fd,"474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
1692                                                                 return NULL;
1693                                                         }
1694                                                 }
1695                                         }
1696                                 }
1697
1698                                 log(DEBUG,"add_channel: bans checked");
1699
1700
1701                                 if ((Ptr) && (user))
1702                                 {
1703                                         user->RemoveInvite(Ptr->name);
1704                                 }
1705
1706                                 log(DEBUG,"add_channel: invites removed");
1707
1708                         }
1709                         else
1710                         {
1711                                 log(DEBUG,"Overridden checks");
1712                         }
1713
1714
1715                 }
1716                 created = 1;
1717         }
1718
1719         log(DEBUG,"Passed channel checks");
1720
1721         for (int i =0; i != MAXCHANS; i++)
1722         {
1723                 log(DEBUG,"Check location %d",i);
1724                 if (user->chans[i].channel == NULL)
1725                 {
1726                         log(DEBUG,"Adding into their channel list at location %d",i);
1727
1728                         if (created == 2)
1729                         {
1730                                 /* first user in is given ops */
1731                                 user->chans[i].uc_modes = UCMODE_OP;
1732                         }
1733                         else
1734                         {
1735                                 user->chans[i].uc_modes = 0;
1736                         }
1737                         user->chans[i].channel = Ptr;
1738                         WriteChannel(Ptr,user,"JOIN :%s",Ptr->name);
1739
1740                         if (!override) // we're not overriding... so this isnt part of a netburst, broadcast it.
1741                         {
1742                                 // use the stamdard J token with no privilages.
1743                                 char buffer[MAXBUF];
1744                                 snprintf(buffer,MAXBUF,"J %s :%s",user->nick,Ptr->name);
1745                                 NetSendToAll(buffer);
1746                         }
1747
1748                         log(DEBUG,"Sent JOIN to client");
1749
1750                         if (Ptr->topicset)
1751                         {
1752                                 WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
1753                                 WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
1754                         }
1755                         userlist(user,Ptr);
1756                         WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, Ptr->name);
1757                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name,chanmodes(Ptr));
1758                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1759                         FOREACH_MOD OnUserJoin(user,Ptr);
1760                         return Ptr;
1761                 }
1762         }
1763         log(DEBUG,"add_channel: user channel max exceeded: %s %s",user->nick,cname);
1764         WriteServ(user->fd,"405 %s %s :You are on too many channels",user->nick, cname);
1765         return NULL;
1766 }
1767
1768 /* remove a channel from a users record, and remove the record from memory
1769  * if the channel has become empty */
1770
1771 chanrec* del_channel(userrec *user, const char* cname, const char* reason, bool local)
1772 {
1773         if ((!user) || (!cname))
1774         {
1775                 log(DEFAULT,"*** BUG *** del_channel was given an invalid parameter");
1776                 return NULL;
1777         }
1778
1779         chanrec* Ptr;
1780         int created = 0;
1781
1782         if ((!cname) || (!user))
1783         {
1784                 return NULL;
1785         }
1786
1787         Ptr = FindChan(cname);
1788
1789         if (!Ptr)
1790         {
1791                 return NULL;
1792         }
1793
1794         FOREACH_MOD OnUserPart(user,Ptr);
1795         log(DEBUG,"del_channel: removing: %s %s",user->nick,Ptr->name);
1796
1797         for (int i =0; i != MAXCHANS; i++)
1798         {
1799                 /* zap it from the channel list of the user */
1800                 if (user->chans[i].channel == Ptr)
1801                 {
1802                         if (reason)
1803                         {
1804                                 WriteChannel(Ptr,user,"PART %s :%s",Ptr->name, reason);
1805
1806                                 if (!local)
1807                                 {
1808                                         char buffer[MAXBUF];
1809                                         snprintf(buffer,MAXBUF,"L %s %s :%s",user->nick,Ptr->name,reason);
1810                                         NetSendToAll(buffer);
1811                                 }
1812
1813
1814                         }
1815                         else
1816                         {
1817                                 if (!local)
1818                                 {
1819                                         char buffer[MAXBUF];
1820                                         snprintf(buffer,MAXBUF,"L %s %s :",user->nick,Ptr->name);
1821                                         NetSendToAll(buffer);
1822                                 }
1823
1824                                 WriteChannel(Ptr,user,"PART :%s",Ptr->name);
1825                         }
1826                         user->chans[i].uc_modes = 0;
1827                         user->chans[i].channel = NULL;
1828                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1829                         break;
1830                 }
1831         }
1832
1833         /* if there are no users left on the channel */
1834         if (!usercount(Ptr))
1835         {
1836                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1837
1838                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1839
1840                 /* kill the record */
1841                 if (iter != chanlist.end())
1842                 {
1843                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1844                         delete iter->second;
1845                         chanlist.erase(iter);
1846                 }
1847         }
1848 }
1849
1850
1851 void kick_channel(userrec *src,userrec *user, chanrec *Ptr, char* reason)
1852 {
1853         if ((!src) || (!user) || (!Ptr) || (!reason))
1854         {
1855                 log(DEFAULT,"*** BUG *** kick_channel was given an invalid parameter");
1856                 return;
1857         }
1858
1859         int i = 0;
1860         int created = 0;
1861
1862         if ((!Ptr) || (!user) || (!src))
1863         {
1864                 return;
1865         }
1866
1867         log(DEBUG,"kick_channel: removing: %s %s %s",user->nick,Ptr->name,src->nick);
1868
1869         if (!has_channel(user,Ptr))
1870         {
1871                 WriteServ(src->fd,"441 %s %s %s :They are not on that channel",src->nick, user->nick, Ptr->name);
1872                 return;
1873         }
1874         if ((cstatus(src,Ptr) < STATUS_HOP) || (cstatus(src,Ptr) < cstatus(user,Ptr)))
1875         {
1876                 if (cstatus(src,Ptr) == STATUS_HOP)
1877                 {
1878                         WriteServ(src->fd,"482 %s %s :You must be a channel operator",src->nick, Ptr->name);
1879                 }
1880                 else
1881                 {
1882                         WriteServ(src->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",src->nick, Ptr->name);
1883                 }
1884
1885                 return;
1886         }
1887
1888         for (int i =0; i != MAXCHANS; i++)
1889         {
1890                 /* zap it from the channel list of the user */
1891                 if (user->chans[i].channel)
1892                 if (!strcasecmp(user->chans[i].channel->name,Ptr->name))
1893                 {
1894                         WriteChannel(Ptr,src,"KICK %s %s :%s",Ptr->name, user->nick, reason);
1895                         user->chans[i].uc_modes = 0;
1896                         user->chans[i].channel = NULL;
1897                         log(DEBUG,"del_channel: unlinked: %s %s",user->nick,Ptr->name);
1898                         break;
1899                 }
1900         }
1901
1902         /* if there are no users left on the channel */
1903         if (!usercount(Ptr))
1904         {
1905                 chan_hash::iterator iter = chanlist.find(Ptr->name);
1906
1907                 log(DEBUG,"del_channel: destroying channel: %s",Ptr->name);
1908
1909                 /* kill the record */
1910                 if (iter != chanlist.end())
1911                 {
1912                         log(DEBUG,"del_channel: destroyed: %s",Ptr->name);
1913                         delete iter->second;
1914                         chanlist.erase(iter);
1915                 }
1916         }
1917 }
1918
1919
1920 /* returns 1 if user u has channel c in their record, 0 if not */
1921
1922 int has_channel(userrec *u, chanrec *c)
1923 {
1924         if ((!u) || (!c))
1925         {
1926                 log(DEFAULT,"*** BUG *** has_channel was given an invalid parameter");
1927                 return 0;
1928         }
1929         for (int i =0; i != MAXCHANS; i++)
1930         {
1931                 if (u->chans[i].channel == c)
1932                 {
1933                         return 1;
1934                 }
1935         }
1936         return 0;
1937 }
1938
1939 int give_ops(userrec *user,char *dest,chanrec *chan,int status)
1940 {
1941         userrec *d;
1942         int i;
1943
1944         if ((!user) || (!dest) || (!chan))
1945         {
1946                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
1947                 return 0;
1948         }
1949         if (status < STATUS_OP)
1950         {
1951                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
1952                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
1953                 return 0;
1954         }
1955         else
1956         {
1957                 if (!isnick(dest))
1958                 {
1959                         log(DEFAULT,"the target nickname given to give_ops was invalid");
1960                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1961                         return 0;
1962                 }
1963                 d = Find(dest);
1964                 if (!d)
1965                 {
1966                         log(DEFAULT,"the target nickname given to give_ops couldnt be found");
1967                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
1968                         return 0;
1969                 }
1970                 else
1971                 {
1972                         for (int i = 0; i != MAXCHANS; i++)
1973                         {
1974                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
1975                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
1976                                 {
1977                                         if (d->chans[i].uc_modes & UCMODE_OP)
1978                                         {
1979                                                 /* mode already set on user, dont allow multiple */
1980                                                 log(DEFAULT,"The target user given to give_ops was already opped on the channel");
1981                                                 return 0;
1982                                         }
1983                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
1984                                         log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
1985                                         return 1;
1986                                 }
1987                         }
1988                         log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
1989                 }
1990         }
1991         return 1;
1992 }
1993
1994 int give_hops(userrec *user,char *dest,chanrec *chan,int status)
1995 {
1996         userrec *d;
1997         int i;
1998
1999         if ((!user) || (!dest) || (!chan))
2000         {
2001                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
2002                 return 0;
2003         }
2004         if (status != STATUS_OP)
2005         {
2006                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2007                 return 0;
2008         }
2009         else
2010         {
2011                 d = Find(dest);
2012                 if (!isnick(dest))
2013                 {
2014                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2015                         return 0;
2016                 }
2017                 if (!d)
2018                 {
2019                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2020                         return 0;
2021                 }
2022                 else
2023                 {
2024                         for (int i = 0; i != MAXCHANS; i++)
2025                         {
2026                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2027                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2028                                 {
2029                                         if (d->chans[i].uc_modes & UCMODE_HOP)
2030                                         {
2031                                                 /* mode already set on user, dont allow multiple */
2032                                                 return 0;
2033                                         }
2034                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
2035                                         log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
2036                                         return 1;
2037                                 }
2038                         }
2039                 }
2040         }
2041         return 1;
2042 }
2043
2044 int give_voice(userrec *user,char *dest,chanrec *chan,int status)
2045 {
2046         userrec *d;
2047         int i;
2048
2049         if ((!user) || (!dest) || (!chan))
2050         {
2051                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
2052                 return 0;
2053         }
2054         if (status < STATUS_HOP)
2055         {
2056                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2057                 return 0;
2058         }
2059         else
2060         {
2061                 d = Find(dest);
2062                 if (!isnick(dest))
2063                 {
2064                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2065                         return 0;
2066                 }
2067                 if (!d)
2068                 {
2069                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2070                         return 0;
2071                 }
2072                 else
2073                 {
2074                         for (int i = 0; i != MAXCHANS; i++)
2075                         {
2076                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2077                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2078                                 {
2079                                         if (d->chans[i].uc_modes & UCMODE_VOICE)
2080                                         {
2081                                                 /* mode already set on user, dont allow multiple */
2082                                                 return 0;
2083                                         }
2084                                         d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
2085                                         log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
2086                                         return 1;
2087                                 }
2088                         }
2089                 }
2090         }
2091         return 1;
2092 }
2093
2094 int take_ops(userrec *user,char *dest,chanrec *chan,int status)
2095 {
2096         userrec *d;
2097         int i;
2098
2099         if ((!user) || (!dest) || (!chan))
2100         {
2101                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
2102                 return 0;
2103         }
2104         if (status < STATUS_OP)
2105         {
2106                 log(DEBUG,"%s cant give ops to %s because they have status %d and needs %d",user->nick,dest,status,STATUS_OP);
2107                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2108                 return 0;
2109         }
2110         else
2111         {
2112                 d = Find(dest);
2113                 if (!isnick(dest))
2114                 {
2115                         log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
2116                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2117                         return 0;
2118                 }
2119                 if (!d)
2120                 {
2121                         log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
2122                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2123                         return 0;
2124                 }
2125                 else
2126                 {
2127                         for (int i = 0; i != MAXCHANS; i++)
2128                         {
2129                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2130                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2131                                 {
2132                                         if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
2133                                         {
2134                                                 /* mode already set on user, dont allow multiple */
2135                                                 return 0;
2136                                         }
2137                                         d->chans[i].uc_modes ^= UCMODE_OP;
2138                                         log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
2139                                         return 1;
2140                                 }
2141                         }
2142                         log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
2143                 }
2144         }
2145         return 1;
2146 }
2147
2148 int take_hops(userrec *user,char *dest,chanrec *chan,int status)
2149 {
2150         userrec *d;
2151         int i;
2152
2153         if ((!user) || (!dest) || (!chan))
2154         {
2155                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
2156                 return 0;
2157         }
2158         if (status != STATUS_OP)
2159         {
2160                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
2161                 return 0;
2162         }
2163         else
2164         {
2165                 d = Find(dest);
2166                 if (!isnick(dest))
2167                 {
2168                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2169                         return 0;
2170                 }
2171                 if (!d)
2172                 {
2173                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2174                         return 0;
2175                 }
2176                 else
2177                 {
2178                         for (int i = 0; i != MAXCHANS; i++)
2179                         {
2180                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2181                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2182                                 {
2183                                         if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
2184                                         {
2185                                                 /* mode already set on user, dont allow multiple */
2186                                                 return 0;
2187                                         }
2188                                         d->chans[i].uc_modes ^= UCMODE_HOP;
2189                                         log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
2190                                         return 1;
2191                                 }
2192                         }
2193                 }
2194         }
2195         return 1;
2196 }
2197
2198 int take_voice(userrec *user,char *dest,chanrec *chan,int status)
2199 {
2200         userrec *d;
2201         int i;
2202
2203         if ((!user) || (!dest) || (!chan))
2204         {
2205                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
2206                 return 0;
2207         }
2208         if (status < STATUS_HOP)
2209         {
2210                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
2211                 return 0;
2212         }
2213         else
2214         {
2215                 d = Find(dest);
2216                 if (!isnick(dest))
2217                 {
2218                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2219                         return 0;
2220                 }
2221                 if (!d)
2222                 {
2223                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
2224                         return 0;
2225                 }
2226                 else
2227                 {
2228                         for (int i = 0; i != MAXCHANS; i++)
2229                         {
2230                                 if ((d->chans[i].channel != NULL) && (chan != NULL))
2231                                 if (!strcasecmp(d->chans[i].channel->name,chan->name))
2232                                 {
2233                                         if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
2234                                         {
2235                                                 /* mode already set on user, dont allow multiple */
2236                                                 return 0;
2237                                         }
2238                                         d->chans[i].uc_modes ^= UCMODE_VOICE;
2239                                         log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
2240                                         return 1;
2241                                 }
2242                         }
2243                 }
2244         }
2245         return 1;
2246 }
2247
2248 void TidyBan(char *ban)
2249 {
2250         if (!ban) {
2251                 log(DEFAULT,"*** BUG *** TidyBan was given an invalid parameter");
2252                 return;
2253         }
2254
2255         char temp[MAXBUF],NICK[MAXBUF],IDENT[MAXBUF],HOST[MAXBUF];
2256
2257         strcpy(temp,ban);
2258
2259         char* pos_of_pling = strchr(temp,'!');
2260         char* pos_of_at = strchr(temp,'@');
2261
2262         pos_of_pling[0] = '\0';
2263         pos_of_at[0] = '\0';
2264         pos_of_pling++;
2265         pos_of_at++;
2266
2267         strncpy(NICK,temp,NICKMAX);
2268         strncpy(IDENT,pos_of_pling,IDENTMAX+1);
2269         strncpy(HOST,pos_of_at,160);
2270
2271         sprintf(ban,"%s!%s@%s",NICK,IDENT,HOST);
2272 }
2273
2274 int add_ban(userrec *user,char *dest,chanrec *chan,int status)
2275 {
2276         if ((!user) || (!dest) || (!chan)) {
2277                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
2278                 return 0;
2279         }
2280
2281         BanItem b;
2282         if ((!user) || (!dest) || (!chan))
2283                 return 0;
2284         if (strchr(dest,'!')==0)
2285                 return 0;
2286         if (strchr(dest,'@')==0)
2287                 return 0;
2288         for (int i = 0; i < strlen(dest); i++)
2289                 if (dest[i] < 32)
2290                         return 0;
2291         for (int i = 0; i < strlen(dest); i++)
2292                 if (dest[i] > 126)
2293                         return 0;
2294         int c = 0;
2295         for (int i = 0; i < strlen(dest); i++)
2296                 if (dest[i] == '!')
2297                         c++;
2298         if (c>1)
2299                 return 0;
2300         c = 0;
2301         for (int i = 0; i < strlen(dest); i++)
2302                 if (dest[i] == '@')
2303                         c++;
2304         if (c>1)
2305                 return 0;
2306         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
2307
2308         TidyBan(dest);
2309         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2310         {
2311                 if (!strcasecmp(i->data,dest))
2312                 {
2313                         // dont allow a user to set the same ban twice
2314                         return 0;
2315                 }
2316         }
2317
2318         b.set_time = time(NULL);
2319         strncpy(b.data,dest,MAXBUF);
2320         strncpy(b.set_by,user->nick,NICKMAX);
2321         chan->bans.push_back(b);
2322         return 1;
2323 }
2324
2325 int take_ban(userrec *user,char *dest,chanrec *chan,int status)
2326 {
2327         if ((!user) || (!dest) || (!chan)) {
2328                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
2329                 return 0;
2330         }
2331
2332         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
2333         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
2334         {
2335                 if (!strcasecmp(i->data,dest))
2336                 {
2337                         chan->bans.erase(i);
2338                         return 1;
2339                 }
2340         }
2341         return 0;
2342 }
2343
2344 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
2345 {
2346         if (!parameters) {
2347                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
2348                 return;
2349         }
2350
2351         char modelist[MAXBUF];
2352         char outlist[MAXBUF];
2353         char outstr[MAXBUF];
2354         char outpars[32][MAXBUF];
2355         int param = 2;
2356         int pc = 0;
2357         int ptr = 0;
2358         int mdir = 1;
2359         int r = 0;
2360         bool k_set = false, l_set = false;
2361
2362         if (pcnt < 2)
2363         {
2364                 return;
2365         }
2366
2367         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
2368
2369         strcpy(modelist,parameters[1]); /* mode list, e.g. +oo-o */
2370                                         /* parameters[2] onwards are parameters for
2371                                          * modes that require them :) */
2372         strcpy(outlist,"+");
2373         mdir = 1;
2374
2375         log(DEBUG,"process_modes: modelist: %s",modelist);
2376
2377         for (ptr = 0; ptr < strlen(modelist); ptr++)
2378         {
2379                 r = 0;
2380
2381                 {
2382                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
2383                         char modechar = modelist[ptr];
2384                         switch (modelist[ptr])
2385                         {
2386                                 case '-':
2387                                         if (mdir != 0)
2388                                         {
2389                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2390                                                 {
2391                                                         outlist[strlen(outlist)-1] = '-';
2392                                                 }
2393                                                 else
2394                                                 {
2395                                                         strcat(outlist,"-");
2396                                                 }
2397                                         }
2398                                         mdir = 0;
2399
2400                                 break;
2401
2402                                 case '+':
2403                                         if (mdir != 1)
2404                                         {
2405                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
2406                                                 {
2407                                                         outlist[strlen(outlist)-1] = '+';
2408                                                 }
2409                                                 else
2410                                                 {
2411                                                         strcat(outlist,"+");
2412                                                 }
2413                                         }
2414                                         mdir = 1;
2415                                 break;
2416
2417                                 case 'o':
2418                                         log(DEBUG,"Ops");
2419                                         if ((param >= pcnt)) break;
2420                                         log(DEBUG,"Enough parameters left");
2421                                         if (mdir == 1)
2422                                         {
2423                                                 log(DEBUG,"calling give_ops");
2424                                                 r = give_ops(user,parameters[param++],chan,status);
2425                                         }
2426                                         else
2427                                         {
2428                                                 log(DEBUG,"calling take_ops");
2429                                                 r = take_ops(user,parameters[param++],chan,status);
2430                                         }
2431                                         if (r)
2432                                         {
2433                                                 strcat(outlist,"o");
2434                                                 strcpy(outpars[pc++],parameters[param-1]);
2435                                         }
2436                                 break;
2437
2438                                 case 'h':
2439                                         if ((param >= pcnt)) break;
2440                                         if (mdir == 1)
2441                                         {
2442                                                 r = give_hops(user,parameters[param++],chan,status);
2443                                         }
2444                                         else
2445                                         {
2446                                                 r = take_hops(user,parameters[param++],chan,status);
2447                                         }
2448                                         if (r)
2449                                         {
2450                                                 strcat(outlist,"h");
2451                                                 strcpy(outpars[pc++],parameters[param-1]);
2452                                         }
2453                                 break;
2454
2455
2456                                 case 'v':
2457                                         if ((param >= pcnt)) break;
2458                                         if (mdir == 1)
2459                                         {
2460                                                 r = give_voice(user,parameters[param++],chan,status);
2461                                         }
2462                                         else
2463                                         {
2464                                                 r = take_voice(user,parameters[param++],chan,status);
2465                                         }
2466                                         if (r)
2467                                         {
2468                                                 strcat(outlist,"v");
2469                                                 strcpy(outpars[pc++],parameters[param-1]);
2470                                         }
2471                                 break;
2472
2473                                 case 'b':
2474                                         if ((param >= pcnt)) break;
2475                                         if (mdir == 1)
2476                                         {
2477                                                 r = add_ban(user,parameters[param++],chan,status);
2478                                         }
2479                                         else
2480                                         {
2481                                                 r = take_ban(user,parameters[param++],chan,status);
2482                                         }
2483                                         if (r)
2484                                         {
2485                                                 strcat(outlist,"b");
2486                                                 strcpy(outpars[pc++],parameters[param-1]);
2487                                         }
2488                                 break;
2489
2490
2491                                 case 'k':
2492                                         if ((param >= pcnt))
2493                                                 break;
2494
2495                                         if (mdir == 1)
2496                                         {
2497                                                 if (k_set)
2498                                                         break;
2499
2500                                                 if (!strcmp(chan->key,""))
2501                                                 {
2502                                                         strcat(outlist,"k");
2503                                                         char key[MAXBUF];
2504                                                         strcpy(key,parameters[param++]);
2505                                                         if (strlen(key)>32) {
2506                                                                 key[31] = '\0';
2507                                                         }
2508                                                         strcpy(outpars[pc++],key);
2509                                                         strcpy(chan->key,key);
2510                                                         k_set = true;
2511                                                 }
2512                                         }
2513                                         else
2514                                         {
2515                                                 /* checks on -k are case sensitive and only accurate to the
2516                                                    first 32 characters */
2517                                                 char key[MAXBUF];
2518                                                 strcpy(key,parameters[param++]);
2519                                                 if (strlen(key)>32) {
2520                                                         key[31] = '\0';
2521                                                 }
2522                                                 /* only allow -k if correct key given */
2523                                                 if (!strcmp(chan->key,key))
2524                                                 {
2525                                                         strcat(outlist,"k");
2526                                                         strcpy(chan->key,"");
2527                                                         strcpy(outpars[pc++],key);
2528                                                 }
2529                                         }
2530                                 break;
2531
2532                                 case 'l':
2533                                         if (mdir == 0)
2534                                         {
2535                                                 if (chan->limit)
2536                                                 {
2537                                                         strcat(outlist,"l");
2538                                                         chan->limit = 0;
2539                                                 }
2540                                         }
2541
2542                                         if ((param >= pcnt)) break;
2543                                         if (mdir == 1)
2544                                         {
2545                                                 if (l_set)
2546                                                         break;
2547
2548                                                 bool invalid = false;
2549                                                 for (int i = 0; i < strlen(parameters[param]); i++)
2550                                                 {
2551                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
2552                                                         {
2553                                                                 invalid = true;
2554                                                         }
2555                                                 }
2556                                                 if (atoi(parameters[param]) < 1)
2557                                                 {
2558                                                         invalid = true;
2559                                                 }
2560
2561                                                 if (invalid)
2562                                                         break;
2563
2564                                                 chan->limit = atoi(parameters[param]);
2565                                                 if (chan->limit)
2566                                                 {
2567                                                         strcat(outlist,"l");
2568                                                         strcpy(outpars[pc++],parameters[param++]);
2569                                                         l_set = true;
2570                                                 }
2571                                         }
2572                                 break;
2573
2574                                 case 'i':
2575                                         if (chan->inviteonly != mdir)
2576                                         {
2577                                                 strcat(outlist,"i");
2578                                         }
2579                                         chan->inviteonly = mdir;
2580                                 break;
2581
2582                                 case 't':
2583                                         if (chan->topiclock != mdir)
2584                                         {
2585                                                 strcat(outlist,"t");
2586                                         }
2587                                         chan->topiclock = mdir;
2588                                 break;
2589
2590                                 case 'n':
2591                                         if (chan->noexternal != mdir)
2592                                         {
2593                                                 strcat(outlist,"n");
2594                                         }
2595                                         chan->noexternal = mdir;
2596                                 break;
2597
2598                                 case 'm':
2599                                         if (chan->moderated != mdir)
2600                                         {
2601                                                 strcat(outlist,"m");
2602                                         }
2603                                         chan->moderated = mdir;
2604                                 break;
2605
2606                                 case 's':
2607                                         if (chan->secret != mdir)
2608                                         {
2609                                                 strcat(outlist,"s");
2610                                                 if (chan->c_private)
2611                                                 {
2612                                                         chan->c_private = 0;
2613                                                         if (mdir)
2614                                                         {
2615                                                                 strcat(outlist,"-p+");
2616                                                         }
2617                                                         else
2618                                                         {
2619                                                                 strcat(outlist,"+p-");
2620                                                         }
2621                                                 }
2622                                         }
2623                                         chan->secret = mdir;
2624                                 break;
2625
2626                                 case 'p':
2627                                         if (chan->c_private != mdir)
2628                                         {
2629                                                 strcat(outlist,"p");
2630                                                 if (chan->secret)
2631                                                 {
2632                                                         chan->secret = 0;
2633                                                         if (mdir)
2634                                                         {
2635                                                                 strcat(outlist,"-s+");
2636                                                         }
2637                                                         else
2638                                                         {
2639                                                                 strcat(outlist,"+s-");
2640                                                         }
2641                                                 }
2642                                         }
2643                                         chan->c_private = mdir;
2644                                 break;
2645
2646                                 default:
2647                                         log(DEBUG,"Preprocessing custom mode %c",modechar);
2648                                         string_list p;
2649                                         p.clear();
2650                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
2651                                         {
2652                                                 log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
2653                                                 break;
2654                                         }
2655                                         if (ModeDefined(modechar,MT_CHANNEL))
2656                                         {
2657                                                 log(DEBUG,"A module has claimed this mode");
2658                                                 if (param<pcnt)
2659                                                 {
2660                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2661                                                         {
2662                                                                 p.push_back(parameters[param]);
2663                                                         }
2664                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
2665                                                         {
2666                                                                 p.push_back(parameters[param]);
2667                                                         }
2668                                                 }
2669                                                 bool handled = false;
2670                                                 if (param>=pcnt)
2671                                                 {
2672                                                         log(DEBUG,"Not enough parameters for module-mode %c",modechar);
2673                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
2674                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
2675                                                         {
2676                                                                 handled = true;
2677                                                                 param++;
2678                                                         }
2679                                                 }
2680                                                 for (int i = 0; i <= MODCOUNT; i++)
2681                                                 {
2682                                                         if (!handled)
2683                                                         {
2684                                                                 if (modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p))
2685                                                                 {
2686                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
2687                                                                         char app[] = {modechar, 0};
2688                                                                         if (ptr>0)
2689                                                                         {
2690                                                                                 if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
2691                                                                                 {
2692                                                                                         strcat(outlist, app);
2693                                                                                 }
2694                                                                                 else if (!strchr(outlist,modechar))
2695                                                                                 {
2696                                                                                         strcat(outlist, app);
2697                                                                                 }
2698                                                                         }
2699                                                                         chan->SetCustomMode(modechar,mdir);
2700                                                                         // include parameters in output if mode has them
2701                                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
2702                                                                         {
2703                                                                                 chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
2704                                                                                 strcpy(outpars[pc++],parameters[param++]);
2705                                                                         }
2706                                                                         // break, because only one module can handle the mode.
2707                                                                         handled = true;
2708                                                                 }
2709                                                         }
2710                                                 }
2711                                         }
2712                                 break;
2713
2714                         }
2715                 }
2716         }
2717
2718         /* this ensures only the *valid* modes are sent out onto the network */
2719         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
2720         {
2721                 outlist[strlen(outlist)-1] = '\0';
2722         }
2723         if (strcmp(outlist,""))
2724         {
2725                 strcpy(outstr,outlist);
2726                 for (ptr = 0; ptr < pc; ptr++)
2727                 {
2728                         strcat(outstr," ");
2729                         strcat(outstr,outpars[ptr]);
2730                 }
2731                 if (local)
2732                 {
2733                         log(DEBUG,"Local mode change");
2734                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
2735                 }
2736                 else
2737                 {
2738                         if (servermode)
2739                         {
2740                                 if (!silent)
2741                                 {
2742                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
2743                                         // M token for a usermode must go to all servers
2744                                         char buffer[MAXBUF];
2745                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
2746                                         NetSendToAll(buffer);
2747                                 }
2748
2749                         }
2750                         else
2751                         {
2752                                 if (!silent)
2753                                 {
2754                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
2755                                         // M token for a usermode must go to all servers
2756                                         char buffer[MAXBUF];
2757                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
2758                                         NetSendToAll(buffer);
2759                                 }
2760                         }
2761                 }
2762         }
2763 }
2764
2765 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
2766
2767 bool allowed_umode(char umode, char* sourcemodes,bool adding)
2768 {
2769         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
2770         // RFC1459 specified modes
2771         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
2772         {
2773                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2774                 return true;
2775         }
2776
2777         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
2778         if ((strchr(sourcemodes,'o')) && (!adding))
2779         {
2780                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2781                 return true;
2782         }
2783         else if (umode == 'o')
2784         {
2785                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
2786                 return false;
2787         }
2788
2789         // process any module-defined modes that need oper
2790         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
2791         {
2792                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
2793                 return true;
2794         }
2795         else
2796         if (ModeDefined(umode,MT_CLIENT))
2797         {
2798                 // process any module-defined modes that don't need oper
2799                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
2800                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
2801                 {
2802                         // no, this mode needs oper, and this user 'aint got what it takes!
2803                         return false;
2804                 }
2805                 return true;
2806         }
2807
2808         // anything else - return false.
2809         log(DEBUG,"umode %c not known by any ruleset",umode);
2810         return false;
2811 }
2812
2813 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
2814 {
2815         userrec* s2;
2816         bool faked = false;
2817         if (!source)
2818         {
2819                 s2 = new userrec;
2820                 strncpy(s2->nick,ServerName,NICKMAX);
2821                 strcpy(s2->modes,"o");
2822                 s2->fd = -1;
2823                 source = s2;
2824                 faked = true;
2825         }
2826         string_list p;
2827         p.clear();
2828         if (ModeDefined(umode,MT_CLIENT))
2829         {
2830                 for (int i = 0; i <= MODCOUNT; i++)
2831                 {
2832                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
2833                         {
2834                                 log(DEBUG,"Module claims umode %c",umode);
2835                                 return true;
2836                         }
2837                 }
2838                 log(DEBUG,"No module claims umode %c",umode);
2839                 if (faked)
2840                 {
2841                         delete s2;
2842                         source = NULL;
2843                 }
2844                 return false;
2845         }
2846         else
2847         {
2848                 if (faked)
2849                 {
2850                         delete s2;
2851                         source = NULL;
2852                 }
2853                 return false;
2854         }
2855 }
2856
2857 void handle_mode(char **parameters, int pcnt, userrec *user)
2858 {
2859         chanrec* Ptr;
2860         userrec* dest;
2861         int can_change,i;
2862         int direction = 1;
2863         char outpars[MAXBUF];
2864
2865         dest = Find(parameters[0]);
2866
2867         if (!user)
2868         {
2869                 return;
2870         }
2871
2872         if ((dest) && (pcnt == 1))
2873         {
2874                 WriteServ(user->fd,"221 %s :+%s",user->nick,user->modes);
2875                 return;
2876         }
2877
2878         if ((dest) && (pcnt > 1))
2879         {
2880                 char dmodes[MAXBUF];
2881                 strncpy(dmodes,dest->modes,MAXBUF);
2882                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
2883
2884                 can_change = 0;
2885                 if (user != dest)
2886                 {
2887                         if (strchr(user->modes,'o'))
2888                         {
2889                                 can_change = 1;
2890                         }
2891                 }
2892                 else
2893                 {
2894                         can_change = 1;
2895                 }
2896                 if (!can_change)
2897                 {
2898                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
2899                         return;
2900                 }
2901
2902                 strcpy(outpars,"+");
2903                 direction = 1;
2904
2905                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
2906                         return;
2907
2908                 for (int i = 0; i < strlen(parameters[1]); i++)
2909                 {
2910                         if (parameters[1][i] == '+')
2911                         {
2912                                 if (direction != 1)
2913                                 {
2914                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2915                                         {
2916                                                 outpars[strlen(outpars)-1] = '+';
2917                                         }
2918                                         else
2919                                         {
2920                                                 strcat(outpars,"+");
2921                                         }
2922                                 }
2923                                 direction = 1;
2924                         }
2925                         else
2926                         if (parameters[1][i] == '-')
2927                         {
2928                                 if (direction != 0)
2929                                 {
2930                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
2931                                         {
2932                                                 outpars[strlen(outpars)-1] = '-';
2933                                         }
2934                                         else
2935                                         {
2936                                                 strcat(outpars,"-");
2937                                         }
2938                                 }
2939                                 direction = 0;
2940                         }
2941                         else
2942                         {
2943                                 can_change = 0;
2944                                 if (strchr(user->modes,'o'))
2945                                 {
2946                                         can_change = 1;
2947                                 }
2948                                 else
2949                                 {
2950                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
2951                                         {
2952                                                 can_change = 1;
2953                                         }
2954                                 }
2955                                 if (can_change)
2956                                 {
2957                                         if (direction == 1)
2958                                         {
2959                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
2960                                                 {
2961                                                         char umode = parameters[1][i];
2962                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2963                                                         {
2964                                                                 dmodes[strlen(dmodes)+1]='\0';
2965                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
2966                                                                 outpars[strlen(outpars)+1]='\0';
2967                                                                 outpars[strlen(outpars)] = parameters[1][i];
2968                                                         }
2969                                                 }
2970                                         }
2971                                         else
2972                                         {
2973                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
2974                                                 {
2975                                                         char umode = parameters[1][i];
2976                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
2977                                                         {
2978                                                                 int q = 0;
2979                                                                 char temp[MAXBUF];
2980                                                                 char moo[MAXBUF];
2981
2982                                                                 outpars[strlen(outpars)+1]='\0';
2983                                                                 outpars[strlen(outpars)] = parameters[1][i];
2984
2985                                                                 strcpy(temp,"");
2986                                                                 for (q = 0; q < strlen(dmodes); q++)
2987                                                                 {
2988                                                                         if (dmodes[q] != parameters[1][i])
2989                                                                         {
2990                                                                                 moo[0] = dmodes[q];
2991                                                                                 moo[1] = '\0';
2992                                                                                 strcat(temp,moo);
2993                                                                         }
2994                                                                 }
2995                                                                 strcpy(dmodes,temp);
2996                                                         }
2997                                                 }
2998                                         }
2999                                 }
3000                         }
3001                 }
3002                 if (strlen(outpars))
3003                 {
3004                         char b[MAXBUF];
3005                         strcpy(b,"");
3006                         int z = 0;
3007                         int i = 0;
3008                         while (i < strlen (outpars))
3009                         {
3010                                 b[z++] = outpars[i++];
3011                                 b[z] = '\0';
3012                                 if (i<strlen(outpars)-1)
3013                                 {
3014                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3015                                         {
3016                                                 // someones playing silly buggers and trying
3017                                                 // to put a +- or -+ into the line...
3018                                                 i++;
3019                                         }
3020                                 }
3021                                 if (i == strlen(outpars)-1)
3022                                 {
3023                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3024                                         {
3025                                                 i++;
3026                                         }
3027                                 }
3028                         }
3029
3030                         z = strlen(b)-1;
3031                         if ((b[z] == '-') || (b[z] == '+'))
3032                                 b[z] == '\0';
3033
3034                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3035                                 return;
3036
3037                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3038
3039                         // M token for a usermode must go to all servers
3040                         char buffer[MAXBUF];
3041                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3042                         NetSendToAll(buffer);
3043
3044                         if (strlen(dmodes)>MAXMODES)
3045                         {
3046                                 dmodes[MAXMODES-1] = '\0';
3047                         }
3048                         log(DEBUG,"Stripped mode line");
3049                         log(DEBUG,"Line dest is now %s",dmodes);
3050                         strncpy(dest->modes,dmodes,MAXMODES);
3051
3052                 }
3053
3054                 return;
3055         }
3056
3057         Ptr = FindChan(parameters[0]);
3058         if (Ptr)
3059         {
3060                 if (pcnt == 1)
3061                 {
3062                         /* just /modes #channel */
3063                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
3064                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
3065                         return;
3066                 }
3067                 else
3068                 if (pcnt == 2)
3069                 {
3070                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
3071                         {
3072
3073                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
3074                                 {
3075                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
3076                                 }
3077                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
3078                                 return;
3079                         }
3080                 }
3081
3082                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3083                 {
3084                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
3085                         return;
3086                 }
3087
3088                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
3089         }
3090         else
3091         {
3092                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3093         }
3094 }
3095
3096
3097
3098
3099 void server_mode(char **parameters, int pcnt, userrec *user)
3100 {
3101         chanrec* Ptr;
3102         userrec* dest;
3103         int can_change,i;
3104         int direction = 1;
3105         char outpars[MAXBUF];
3106
3107         dest = Find(parameters[0]);
3108
3109         // fix: ChroNiCk found this - we cant use this as debug if its null!
3110         if (dest)
3111         {
3112                 log(DEBUG,"server_mode on %s",dest->nick);
3113         }
3114
3115         if ((dest) && (pcnt > 1))
3116         {
3117                 log(DEBUG,"params > 1");
3118
3119                 char dmodes[MAXBUF];
3120                 strncpy(dmodes,dest->modes,MAXBUF);
3121
3122                 strcpy(outpars,"+");
3123                 direction = 1;
3124
3125                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3126                         return;
3127
3128                 for (int i = 0; i < strlen(parameters[1]); i++)
3129                 {
3130                         if (parameters[1][i] == '+')
3131                         {
3132                                 if (direction != 1)
3133                                 {
3134                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3135                                         {
3136                                                 outpars[strlen(outpars)-1] = '+';
3137                                         }
3138                                         else
3139                                         {
3140                                                 strcat(outpars,"+");
3141                                         }
3142                                 }
3143                                 direction = 1;
3144                         }
3145                         else
3146                         if (parameters[1][i] == '-')
3147                         {
3148                                 if (direction != 0)
3149                                 {
3150                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3151                                         {
3152                                                 outpars[strlen(outpars)-1] = '-';
3153                                         }
3154                                         else
3155                                         {
3156                                                 strcat(outpars,"-");
3157                                         }
3158                                 }
3159                                 direction = 0;
3160                         }
3161                         else
3162                         {
3163                                 log(DEBUG,"begin mode processing entry");
3164                                 can_change = 1;
3165                                 if (can_change)
3166                                 {
3167                                         if (direction == 1)
3168                                         {
3169                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3170                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3171                                                 {
3172                                                         char umode = parameters[1][i];
3173                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3174                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3175                                                         {
3176                                                                 dmodes[strlen(dmodes)+1]='\0';
3177                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3178                                                                 outpars[strlen(outpars)+1]='\0';
3179                                                                 outpars[strlen(outpars)] = parameters[1][i];
3180                                                         }
3181                                                 }
3182                                         }
3183                                         else
3184                                         {
3185                                                 // can only remove a mode they already have
3186                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3187                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3188                                                 {
3189                                                         char umode = parameters[1][i];
3190                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3191                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3192                                                         {
3193                                                                 int q = 0;
3194                                                                 char temp[MAXBUF];
3195                                                                 char moo[MAXBUF];
3196
3197                                                                 outpars[strlen(outpars)+1]='\0';
3198                                                                 outpars[strlen(outpars)] = parameters[1][i];
3199
3200                                                                 strcpy(temp,"");
3201                                                                 for (q = 0; q < strlen(dmodes); q++)
3202                                                                 {
3203                                                                         if (dmodes[q] != parameters[1][i])
3204                                                                         {
3205                                                                                 moo[0] = dmodes[q];
3206                                                                                 moo[1] = '\0';
3207                                                                                 strcat(temp,moo);
3208                                                                         }
3209                                                                 }
3210                                                                 strcpy(dmodes,temp);
3211                                                         }
3212                                                 }
3213                                         }
3214                                 }
3215                         }
3216                 }
3217                 if (strlen(outpars))
3218                 {
3219                         char b[MAXBUF];
3220                         strcpy(b,"");
3221                         int z = 0;
3222                         int i = 0;
3223                         while (i < strlen (outpars))
3224                         {
3225                                 b[z++] = outpars[i++];
3226                                 b[z] = '\0';
3227                                 if (i<strlen(outpars)-1)
3228                                 {
3229                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3230                                         {
3231                                                 // someones playing silly buggers and trying
3232                                                 // to put a +- or -+ into the line...
3233                                                 i++;
3234                                         }
3235                                 }
3236                                 if (i == strlen(outpars)-1)
3237                                 {
3238                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3239                                         {
3240                                                 i++;
3241                                         }
3242                                 }
3243                         }
3244
3245                         z = strlen(b)-1;
3246                         if ((b[z] == '-') || (b[z] == '+'))
3247                                 b[z] == '\0';
3248
3249                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3250                                 return;
3251
3252                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
3253
3254                         // M token for a usermode must go to all servers
3255                         char buffer[MAXBUF];
3256                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
3257                         NetSendToAll(buffer);
3258
3259                         if (strlen(dmodes)>MAXMODES)
3260                         {
3261                                 dmodes[MAXMODES-1] = '\0';
3262                         }
3263                         log(DEBUG,"Stripped mode line");
3264                         log(DEBUG,"Line dest is now %s",dmodes);
3265                         strncpy(dest->modes,dmodes,MAXMODES);
3266
3267                 }
3268
3269                 return;
3270         }
3271
3272         Ptr = FindChan(parameters[0]);
3273         if (Ptr)
3274         {
3275                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
3276         }
3277         else
3278         {
3279                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3280         }
3281 }
3282
3283
3284
3285 void merge_mode(char **parameters, int pcnt)
3286 {
3287         chanrec* Ptr;
3288         userrec* dest;
3289         int can_change,i;
3290         int direction = 1;
3291         char outpars[MAXBUF];
3292
3293         dest = Find(parameters[0]);
3294
3295         // fix: ChroNiCk found this - we cant use this as debug if its null!
3296         if (dest)
3297         {
3298                 log(DEBUG,"merge_mode on %s",dest->nick);
3299         }
3300
3301         if ((dest) && (pcnt > 1))
3302         {
3303                 log(DEBUG,"params > 1");
3304
3305                 char dmodes[MAXBUF];
3306                 strncpy(dmodes,dest->modes,MAXBUF);
3307
3308                 strcpy(outpars,"+");
3309                 direction = 1;
3310
3311                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3312                         return;
3313
3314                 for (int i = 0; i < strlen(parameters[1]); i++)
3315                 {
3316                         if (parameters[1][i] == '+')
3317                         {
3318                                 if (direction != 1)
3319                                 {
3320                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3321                                         {
3322                                                 outpars[strlen(outpars)-1] = '+';
3323                                         }
3324                                         else
3325                                         {
3326                                                 strcat(outpars,"+");
3327                                         }
3328                                 }
3329                                 direction = 1;
3330                         }
3331                         else
3332                         if (parameters[1][i] == '-')
3333                         {
3334                                 if (direction != 0)
3335                                 {
3336                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3337                                         {
3338                                                 outpars[strlen(outpars)-1] = '-';
3339                                         }
3340                                         else
3341                                         {
3342                                                 strcat(outpars,"-");
3343                                         }
3344                                 }
3345                                 direction = 0;
3346                         }
3347                         else
3348                         {
3349                                 log(DEBUG,"begin mode processing entry");
3350                                 can_change = 1;
3351                                 if (can_change)
3352                                 {
3353                                         if (direction == 1)
3354                                         {
3355                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3356                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
3357                                                 {
3358                                                         char umode = parameters[1][i];
3359                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3360                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3361                                                         {
3362                                                                 dmodes[strlen(dmodes)+1]='\0';
3363                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3364                                                                 outpars[strlen(outpars)+1]='\0';
3365                                                                 outpars[strlen(outpars)] = parameters[1][i];
3366                                                         }
3367                                                 }
3368                                         }
3369                                         else
3370                                         {
3371                                                 // can only remove a mode they already have
3372                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3373                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
3374                                                 {
3375                                                         char umode = parameters[1][i];
3376                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3377                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3378                                                         {
3379                                                                 int q = 0;
3380                                                                 char temp[MAXBUF];
3381                                                                 char moo[MAXBUF];
3382
3383                                                                 outpars[strlen(outpars)+1]='\0';
3384                                                                 outpars[strlen(outpars)] = parameters[1][i];
3385
3386                                                                 strcpy(temp,"");
3387                                                                 for (q = 0; q < strlen(dmodes); q++)
3388                                                                 {
3389                                                                         if (dmodes[q] != parameters[1][i])
3390                                                                         {
3391                                                                                 moo[0] = dmodes[q];
3392                                                                                 moo[1] = '\0';
3393                                                                                 strcat(temp,moo);
3394                                                                         }
3395                                                                 }
3396                                                                 strcpy(dmodes,temp);
3397                                                         }
3398                                                 }
3399                                         }
3400                                 }
3401                         }
3402                 }
3403                 if (strlen(outpars))
3404                 {
3405                         char b[MAXBUF];
3406                         strcpy(b,"");
3407                         int z = 0;
3408                         int i = 0;
3409                         while (i < strlen (outpars))
3410                         {
3411                                 b[z++] = outpars[i++];
3412                                 b[z] = '\0';
3413                                 if (i<strlen(outpars)-1)
3414                                 {
3415                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3416                                         {
3417                                                 // someones playing silly buggers and trying
3418                                                 // to put a +- or -+ into the line...
3419                                                 i++;
3420                                         }
3421                                 }
3422                                 if (i == strlen(outpars)-1)
3423                                 {
3424                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3425                                         {
3426                                                 i++;
3427                                         }
3428                                 }
3429                         }
3430
3431                         z = strlen(b)-1;
3432                         if ((b[z] == '-') || (b[z] == '+'))
3433                                 b[z] == '\0';
3434
3435                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3436                                 return;
3437
3438                         if (strlen(dmodes)>MAXMODES)
3439                         {
3440                                 dmodes[MAXMODES-1] = '\0';
3441                         }
3442                         log(DEBUG,"Stripped mode line");
3443                         log(DEBUG,"Line dest is now %s",dmodes);
3444                         strncpy(dest->modes,dmodes,MAXMODES);
3445
3446                 }
3447
3448                 return;
3449         }
3450
3451         Ptr = FindChan(parameters[0]);
3452         if (Ptr)
3453         {
3454                 userrec s2;
3455                 strncpy(s2.nick,ServerName,NICKMAX);
3456                 strcpy(s2.modes,"o");
3457                 s2.fd = -1;
3458                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
3459         }
3460 }
3461
3462
3463 void merge_mode2(char **parameters, int pcnt, userrec* user)
3464 {
3465         chanrec* Ptr;
3466         userrec* dest;
3467         int can_change,i;
3468         int direction = 1;
3469         char outpars[MAXBUF];
3470
3471         dest = Find(parameters[0]);
3472
3473         // fix: ChroNiCk found this - we cant use this as debug if its null!
3474         if (dest)
3475         {
3476                 log(DEBUG,"merge_mode on %s",dest->nick);
3477         }
3478
3479         if ((dest) && (pcnt > 1))
3480         {
3481                 log(DEBUG,"params > 1");
3482
3483                 char dmodes[MAXBUF];
3484                 strncpy(dmodes,dest->modes,MAXBUF);
3485
3486                 strcpy(outpars,"+");
3487                 direction = 1;
3488
3489                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
3490                         return;
3491
3492                 for (int i = 0; i < strlen(parameters[1]); i++)
3493                 {
3494                         if (parameters[1][i] == '+')
3495                         {
3496                                 if (direction != 1)
3497                                 {
3498                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3499                                         {
3500                                                 outpars[strlen(outpars)-1] = '+';
3501                                         }
3502                                         else
3503                                         {
3504                                                 strcat(outpars,"+");
3505                                         }
3506                                 }
3507                                 direction = 1;
3508                         }
3509                         else
3510                         if (parameters[1][i] == '-')
3511                         {
3512                                 if (direction != 0)
3513                                 {
3514                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
3515                                         {
3516                                                 outpars[strlen(outpars)-1] = '-';
3517                                         }
3518                                         else
3519                                         {
3520                                                 strcat(outpars,"-");
3521                                         }
3522                                 }
3523                                 direction = 0;
3524                         }
3525                         else
3526                         {
3527                                 log(DEBUG,"begin mode processing entry");
3528                                 can_change = 1;
3529                                 if (can_change)
3530                                 {
3531                                         if (direction == 1)
3532                                         {
3533                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
3534                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
3535                                                 {
3536                                                         char umode = parameters[1][i];
3537                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3538                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3539                                                         {
3540                                                                 dmodes[strlen(dmodes)+1]='\0';
3541                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
3542                                                                 outpars[strlen(outpars)+1]='\0';
3543                                                                 outpars[strlen(outpars)] = parameters[1][i];
3544                                                         }
3545                                                 }
3546                                         }
3547                                         else
3548                                         {
3549                                                 // can only remove a mode they already have
3550                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
3551                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
3552                                                 {
3553                                                         char umode = parameters[1][i];
3554                                                         log(DEBUG,"umode %c is an allowed umode",umode);
3555                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
3556                                                         {
3557                                                                 int q = 0;
3558                                                                 char temp[MAXBUF];
3559                                                                 char moo[MAXBUF];
3560
3561                                                                 outpars[strlen(outpars)+1]='\0';
3562                                                                 outpars[strlen(outpars)] = parameters[1][i];
3563
3564                                                                 strcpy(temp,"");
3565                                                                 for (q = 0; q < strlen(dmodes); q++)
3566                                                                 {
3567                                                                         if (dmodes[q] != parameters[1][i])
3568                                                                         {
3569                                                                                 moo[0] = dmodes[q];
3570                                                                                 moo[1] = '\0';
3571                                                                                 strcat(temp,moo);
3572                                                                         }
3573                                                                 }
3574                                                                 strcpy(dmodes,temp);
3575                                                         }
3576                                                 }
3577                                         }
3578                                 }
3579                         }
3580                 }
3581                 if (strlen(outpars))
3582                 {
3583                         char b[MAXBUF];
3584                         strcpy(b,"");
3585                         int z = 0;
3586                         int i = 0;
3587                         while (i < strlen (outpars))
3588                         {
3589                                 b[z++] = outpars[i++];
3590                                 b[z] = '\0';
3591                                 if (i<strlen(outpars)-1)
3592                                 {
3593                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
3594                                         {
3595                                                 // someones playing silly buggers and trying
3596                                                 // to put a +- or -+ into the line...
3597                                                 i++;
3598                                         }
3599                                 }
3600                                 if (i == strlen(outpars)-1)
3601                                 {
3602                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
3603                                         {
3604                                                 i++;
3605                                         }
3606                                 }
3607                         }
3608
3609                         z = strlen(b)-1;
3610                         if ((b[z] == '-') || (b[z] == '+'))
3611                                 b[z] == '\0';
3612
3613                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
3614                                 return;
3615
3616                         WriteTo(user,dest,"MODE :%s",b);
3617
3618                         if (strlen(dmodes)>MAXMODES)
3619                         {
3620                                 dmodes[MAXMODES-1] = '\0';
3621                         }
3622                         log(DEBUG,"Stripped mode line");
3623                         log(DEBUG,"Line dest is now %s",dmodes);
3624                         strncpy(dest->modes,dmodes,MAXMODES);
3625
3626                 }
3627
3628                 return;
3629         }
3630
3631         Ptr = FindChan(parameters[0]);
3632         if (Ptr)
3633         {
3634                 if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
3635                 {
3636                         return;
3637                 }
3638
3639                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
3640         }
3641 }
3642
3643
3644
3645 /* This function pokes and hacks at a parameter list like the following:
3646  *
3647  * PART #winbot, #darkgalaxy :m00!
3648  *
3649  * to turn it into a series of individual calls like this:
3650  *
3651  * PART #winbot :m00!
3652  * PART #darkgalaxy :m00!
3653  *
3654  * The seperate calls are sent to a callback function provided by the caller
3655  * (the caller will usually call itself recursively). The callback function
3656  * must be a command handler. Calling this function on a line with no list causes
3657  * no action to be taken. You must provide a starting and ending parameter number
3658  * where the range of the list can be found, useful if you have a terminating
3659  * parameter as above which is actually not part of the list, or parameters
3660  * before the actual list as well. This code is used by many functions which
3661  * can function as "one to list" (see the RFC) */
3662
3663 int loop_call(handlerfunc fn, char **parameters, int pcnt, userrec *u, int start, int end, int joins)
3664 {
3665         char plist[MAXBUF];
3666         char *param;
3667         char *pars[32];
3668         char blog[32][MAXBUF];
3669         char blog2[32][MAXBUF];
3670         int i = 0, j = 0, q = 0, total = 0, t = 0, t2 = 0, total2 = 0;
3671         char keystr[MAXBUF];
3672         char moo[MAXBUF];
3673
3674         for (int i = 0; i <32; i++)
3675                 strcpy(blog[i],"");
3676
3677         for (int i = 0; i <32; i++)
3678                 strcpy(blog2[i],"");
3679
3680         strcpy(moo,"");
3681         for (int i = 0; i <10; i++)
3682         {
3683                 if (!parameters[i])
3684                 {
3685                         parameters[i] = moo;
3686                 }
3687         }
3688         if (joins)
3689         {
3690                 if (pcnt > 1) /* we have a key to copy */
3691                 {
3692                         strcpy(keystr,parameters[1]);
3693                 }
3694         }
3695
3696         if (!parameters[start])
3697         {
3698                 return 0;
3699         }
3700         if (!strchr(parameters[start],','))
3701         {
3702                 return 0;
3703         }
3704         strcpy(plist,"");
3705         for (int i = start; i <= end; i++)
3706         {
3707                 if (parameters[i])
3708                 {
3709                         strcat(plist,parameters[i]);
3710                 }
3711         }
3712
3713         j = 0;
3714         param = plist;
3715
3716         t = strlen(plist);
3717         for (int i = 0; i < t; i++)
3718         {
3719                 if (plist[i] == ',')
3720                 {
3721                         plist[i] = '\0';
3722                         strcpy(blog[j++],param);
3723                         param = plist+i+1;
3724                         if (j>20)
3725                         {
3726                                 WriteServ(u->fd,"407 %s %s :Too many targets in list, message not delivered.",u->nick,blog[j-1]);
3727                                 return 1;
3728                         }
3729                 }
3730         }
3731         strcpy(blog[j++],param);
3732         total = j;
3733
3734         if ((joins) && (keystr) && (total>0)) // more than one channel and is joining
3735         {
3736                 strcat(keystr,",");
3737         }
3738
3739         if ((joins) && (keystr))
3740         {
3741                 if (strchr(keystr,','))
3742                 {
3743                         j = 0;
3744                         param = keystr;
3745                         t2 = strlen(keystr);
3746                         for (int i = 0; i < t2; i++)
3747                         {
3748                                 if (keystr[i] == ',')
3749                                 {
3750                                         keystr[i] = '\0';
3751                                         strcpy(blog2[j++],param);
3752                                         param = keystr+i+1;
3753                                 }
3754                         }
3755                         strcpy(blog2[j++],param);
3756                         total2 = j;
3757                 }
3758         }
3759
3760         for (j = 0; j < total; j++)
3761         {
3762                 if (blog[j])
3763                 {
3764                         pars[0] = blog[j];
3765                 }
3766                 for (q = end; q < pcnt-1; q++)
3767                 {
3768                         if (parameters[q+1])
3769                         {
3770                                 pars[q-end+1] = parameters[q+1];
3771                         }
3772                 }
3773                 if ((joins) && (parameters[1]))
3774                 {
3775                         if (pcnt > 1)
3776                         {
3777                                 pars[1] = blog2[j];
3778                         }
3779                         else
3780                         {
3781                                 pars[1] = NULL;
3782                         }
3783                 }
3784                 /* repeatedly call the function with the hacked parameter list */
3785                 if ((joins) && (pcnt > 1))
3786                 {
3787                         if (pars[1])
3788                         {
3789                                 // pars[1] already set up and containing key from blog2[j]
3790                                 fn(pars,2,u);
3791                         }
3792                         else
3793                         {
3794                                 pars[1] = parameters[1];
3795                                 fn(pars,2,u);
3796                         }
3797                 }
3798                 else
3799                 {
3800                         fn(pars,pcnt-(end-start),u);
3801                 }
3802         }
3803
3804         return 1;
3805 }
3806
3807
3808 void handle_join(char **parameters, int pcnt, userrec *user)
3809 {
3810         chanrec* Ptr;
3811         int i = 0;
3812
3813         if (loop_call(handle_join,parameters,pcnt,user,0,0,1))
3814                 return;
3815         if (parameters[0][0] == '#')
3816         {
3817                 Ptr = add_channel(user,parameters[0],parameters[1],false);
3818         }
3819 }
3820
3821
3822 void handle_part(char **parameters, int pcnt, userrec *user)
3823 {
3824         chanrec* Ptr;
3825
3826         if (pcnt > 1)
3827         {
3828                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-2,0))
3829                         return;
3830                 del_channel(user,parameters[0],parameters[1],false);
3831         }
3832         else
3833         {
3834                 if (loop_call(handle_part,parameters,pcnt,user,0,pcnt-1,0))
3835                         return;
3836                 del_channel(user,parameters[0],NULL,false);
3837         }
3838 }
3839
3840 void handle_kick(char **parameters, int pcnt, userrec *user)
3841 {
3842         chanrec* Ptr = FindChan(parameters[0]);
3843         userrec* u   = Find(parameters[1]);
3844
3845         if ((!u) || (!Ptr))
3846         {
3847                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
3848                 return;
3849         }
3850
3851         if (!has_channel(u,Ptr))
3852         {
3853                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, parameters[0]);
3854                 return;
3855         }
3856
3857         char reason[MAXBUF];
3858
3859         if (pcnt > 2)
3860         {
3861                 strncpy(reason,parameters[2],MAXBUF);
3862                 if (strlen(reason)>MAXKICK)
3863                 {
3864                         reason[MAXKICK-1] = '\0';
3865                 }
3866
3867                 kick_channel(user,u,Ptr,reason);
3868         }
3869         else
3870         {
3871                 strcpy(reason,user->nick);
3872                 kick_channel(user,u,Ptr,reason);
3873         }
3874
3875         // this must be propogated so that channel membership is kept in step network-wide
3876
3877         char buffer[MAXBUF];
3878         snprintf(buffer,MAXBUF,"k %s %s %s :%s",user->nick,u->nick,Ptr->name,reason);
3879         NetSendToAll(buffer);
3880 }
3881
3882
3883 void handle_die(char **parameters, int pcnt, userrec *user)
3884 {
3885         log(DEBUG,"die: %s",user->nick);
3886         if (!strcmp(parameters[0],diepass))
3887         {
3888                 WriteOpers("*** DIE command from %s!%s@%s, terminating...",user->nick,user->ident,user->host);
3889                 sleep(DieDelay);
3890                 Exit(ERROR);
3891         }
3892         else
3893         {
3894                 WriteOpers("*** Failed DIE Command from %s!%s@%s.",user->nick,user->ident,user->host);
3895         }
3896 }
3897
3898 void handle_restart(char **parameters, int pcnt, userrec *user)
3899 {
3900         log(DEBUG,"restart: %s",user->nick);
3901         if (!strcmp(parameters[0],restartpass))
3902         {
3903                 WriteOpers("*** RESTART command from %s!%s@%s, Pretending to restart till this is finished :D",user->nick,user->ident,user->host);
3904                 sleep(DieDelay);
3905                 Exit(ERROR);
3906                 /* Will finish this later when i can be arsed :) */
3907         }
3908         else
3909         {
3910                 WriteOpers("*** Failed RESTART Command from %s!%s@%s.",user->nick,user->ident,user->host);
3911         }
3912 }
3913
3914
3915 void kill_link(userrec *user,const char* r)
3916 {
3917         user_hash::iterator iter = clientlist.find(user->nick);
3918
3919         char reason[MAXBUF];
3920
3921         strncpy(reason,r,MAXBUF);
3922
3923         if (strlen(reason)>MAXQUIT)
3924         {
3925                 reason[MAXQUIT-1] = '\0';
3926         }
3927
3928         log(DEBUG,"kill_link: %s '%s'",user->nick,reason);
3929         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,reason);
3930         log(DEBUG,"closing fd %d",user->fd);
3931
3932         /* bugfix, cant close() a nonblocking socket (sux!) */
3933         if (user->registered == 7) {
3934                 FOREACH_MOD OnUserQuit(user);
3935                 WriteCommonExcept(user,"QUIT :%s",reason);
3936
3937                 // Q token must go to ALL servers!!!
3938                 char buffer[MAXBUF];
3939                 snprintf(buffer,MAXBUF,"Q %s :%s",user->nick,reason);
3940                 NetSendToAll(buffer);
3941         }
3942
3943         /* push the socket on a stack of sockets due to be closed at the next opportunity
3944          * 'Client exited' is an exception to this as it means the client side has already
3945          * closed the socket, we don't need to do it.
3946          */
3947         fd_reap.push_back(user->fd);
3948
3949         bool do_purge = false;
3950
3951         if (user->registered == 7) {
3952                 WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,reason);
3953                 AddWhoWas(user);
3954         }
3955
3956         if (iter != clientlist.end())
3957         {
3958                 log(DEBUG,"deleting user hash value %d",iter->second);
3959                 if ((iter->second) && (user->registered == 7)) {
3960                         delete iter->second;
3961                 }
3962                 clientlist.erase(iter);
3963         }
3964
3965         if (user->registered == 7) {
3966                 purge_empty_chans();
3967         }
3968 }
3969
3970
3971 void handle_kill(char **parameters, int pcnt, userrec *user)
3972 {
3973         userrec *u = Find(parameters[0]);
3974         char killreason[MAXBUF];
3975
3976         log(DEBUG,"kill: %s %s",parameters[0],parameters[1]);
3977         if (u)
3978         {
3979                 if (strcmp(ServerName,u->server))
3980                 {
3981                         // remote kill
3982                         WriteOpers("*** Remote kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
3983                         sprintf(killreason,"[%s] Killed (%s (%s))",ServerName,user->nick,parameters[1]);
3984                         WriteCommonExcept(u,"QUIT :%s",killreason);
3985                         // K token must go to ALL servers!!!
3986                         char buffer[MAXBUF];
3987                         snprintf(buffer,MAXBUF,"K %s %s :%s",user->nick,u->nick,killreason);
3988                         NetSendToAll(buffer);
3989
3990                         user_hash::iterator iter = clientlist.find(u->nick);
3991                         if (iter != clientlist.end())
3992                         {
3993                                 log(DEBUG,"deleting user hash value %d",iter->second);
3994                                 if ((iter->second) && (user->registered == 7)) {
3995                                         delete iter->second;
3996                                         }
3997                         clientlist.erase(iter);
3998                         }
3999                         purge_empty_chans();
4000                 }
4001                 else
4002                 {
4003                         // local kill
4004                         WriteTo(user, u, "KILL %s :%s!%s!%s (%s)", u->nick, ServerName,user->dhost,user->nick,parameters[1]);
4005                         WriteOpers("*** Local Kill by %s: %s!%s@%s (%s)",user->nick,u->nick,u->ident,u->host,parameters[1]);
4006                         sprintf(killreason,"Killed (%s (%s))",user->nick,parameters[1]);
4007                         kill_link(u,killreason);
4008                 }
4009         }
4010         else
4011         {
4012                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4013         }
4014 }
4015
4016 void handle_summon(char **parameters, int pcnt, userrec *user)
4017 {
4018         WriteServ(user->fd,"445 %s :SUMMON has been disabled (depreciated command)",user->nick);
4019 }
4020
4021 void handle_users(char **parameters, int pcnt, userrec *user)
4022 {
4023         WriteServ(user->fd,"445 %s :USERS has been disabled (depreciated command)",user->nick);
4024 }
4025
4026
4027 // looks up a users password for their connection class (<ALLOW>/<DENY> tags)
4028
4029 char* Passwd(userrec *user)
4030 {
4031         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4032         {
4033                 if (match(user->host,i->host) && (i->type == CC_ALLOW))
4034                 {
4035                         return i->pass;
4036                 }
4037         }
4038         return "";
4039 }
4040
4041 bool IsDenied(userrec *user)
4042 {
4043         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4044         {
4045                 if (match(user->host,i->host) && (i->type == CC_DENY))
4046                 {
4047                         return true;
4048                 }
4049         }
4050         return false;
4051 }
4052
4053
4054
4055 void handle_pass(char **parameters, int pcnt, userrec *user)
4056 {
4057         // Check to make sure they havnt registered -- Fix by FCS
4058         if (user->registered == 7)
4059         {
4060                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
4061                 return;
4062         }
4063         if (!strcasecmp(parameters[0],Passwd(user)))
4064         {
4065                 user->haspassed = true;
4066         }
4067 }
4068
4069 void handle_invite(char **parameters, int pcnt, userrec *user)
4070 {
4071         userrec* u = Find(parameters[0]);
4072         chanrec* c = FindChan(parameters[1]);
4073
4074         if ((!c) || (!u))
4075         {
4076                 if (!c)
4077                 {
4078                         WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
4079                 }
4080                 else
4081                 {
4082                         if (c->inviteonly)
4083                         {
4084                                 WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[0]);
4085                         }
4086                 }
4087
4088                 return;
4089         }
4090
4091         if (c->inviteonly)
4092         {
4093                 if (cstatus(user,c) < STATUS_HOP)
4094                 {
4095                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, c->name);
4096                         return;
4097                 }
4098         }
4099         if (has_channel(u,c))
4100         {
4101                 WriteServ(user->fd,"443 %s %s %s :Is already on channel %s",user->nick,u->nick,c->name,c->name);
4102                 return;
4103         }
4104         if (!has_channel(user,c))
4105         {
4106                 WriteServ(user->fd,"442 %s %s :You're not on that channel!",user->nick, c->name);
4107                 return;
4108         }
4109         u->InviteTo(c->name);
4110         WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
4111         WriteServ(user->fd,"341 %s %s %s",user->nick,u->nick,c->name);
4112
4113         // i token must go to ALL servers!!!
4114         char buffer[MAXBUF];
4115         snprintf(buffer,MAXBUF,"i %s %s %s",u->nick,user->nick,c->name);
4116         NetSendToAll(buffer);
4117 }
4118
4119 void handle_topic(char **parameters, int pcnt, userrec *user)
4120 {
4121         chanrec* Ptr;
4122
4123         if (pcnt == 1)
4124         {
4125                 if (strlen(parameters[0]) <= CHANMAX)
4126                 {
4127                         Ptr = FindChan(parameters[0]);
4128                         if (Ptr)
4129                         {
4130                                 if (Ptr->topicset)
4131                                 {
4132                                         WriteServ(user->fd,"332 %s %s :%s", user->nick, Ptr->name, Ptr->topic);
4133                                         WriteServ(user->fd,"333 %s %s %s %d", user->nick, Ptr->name, Ptr->setby, Ptr->topicset);
4134                                 }
4135                                 else
4136                                 {
4137                                         WriteServ(user->fd,"331 %s %s :No topic is set.", user->nick, Ptr->name);
4138                                 }
4139                         }
4140                         else
4141                         {
4142                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4143                         }
4144                 }
4145                 return;
4146         }
4147         else if (pcnt>1)
4148         {
4149                 if (strlen(parameters[0]) <= CHANMAX)
4150                 {
4151                         Ptr = FindChan(parameters[0]);
4152                         if (Ptr)
4153                         {
4154                                 if ((Ptr->topiclock) && (cstatus(user,Ptr)<STATUS_HOP))
4155                                 {
4156                                         WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel", user->nick, Ptr->name);
4157                                         return;
4158                                 }
4159
4160                                 char topic[MAXBUF];
4161                                 strncpy(topic,parameters[1],MAXBUF);
4162                                 if (strlen(topic)>MAXTOPIC)
4163                                 {
4164                                         topic[MAXTOPIC-1] = '\0';
4165                                 }
4166
4167                                 strcpy(Ptr->topic,topic);
4168                                 strcpy(Ptr->setby,user->nick);
4169                                 Ptr->topicset = time(NULL);
4170                                 WriteChannel(Ptr,user,"TOPIC %s :%s",Ptr->name, Ptr->topic);
4171
4172                                 // t token must go to ALL servers!!!
4173                                 char buffer[MAXBUF];
4174                                 snprintf(buffer,MAXBUF,"t %s %s :%s",user->nick,Ptr->name,topic);
4175                                 NetSendToAll(buffer);
4176                         }
4177                         else
4178                         {
4179                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4180                         }
4181                 }
4182         }
4183 }
4184
4185 /* sends out an error notice to all connected clients (not to be used
4186  * lightly!) */
4187
4188 void send_error(char *s)
4189 {
4190         log(DEBUG,"send_error: %s",s);
4191         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4192         {
4193                 if (isnick(i->second->nick))
4194                 {
4195                         WriteServ(i->second->fd,"NOTICE %s :%s",i->second->nick,s);
4196                 }
4197                 else
4198                 {
4199                         // fix - unregistered connections receive ERROR, not NOTICE
4200                         Write(i->second->fd,"ERROR :%s",s);
4201                 }
4202         }
4203 }
4204
4205 void Error(int status)
4206 {
4207         signal (SIGALRM, SIG_IGN);
4208         signal (SIGPIPE, SIG_IGN);
4209         signal (SIGTERM, SIG_IGN);
4210         signal (SIGABRT, SIG_IGN);
4211         signal (SIGSEGV, SIG_IGN);
4212         signal (SIGURG, SIG_IGN);
4213         signal (SIGKILL, SIG_IGN);
4214         log(DEBUG,"*** fell down a pothole in the road to perfection ***");
4215         send_error("Error! Segmentation fault! save meeeeeeeeeeeeee *splat!*");
4216         exit(status);
4217 }
4218
4219
4220 int main(int argc, char *argv[])
4221 {
4222         Start();
4223         srand(time(NULL));
4224         log(DEBUG,"*** InspIRCd starting up!");
4225         if (!FileExists(CONFIG_FILE))
4226         {
4227                 printf("ERROR: Cannot open config file: %s\nExiting...\n",CONFIG_FILE);
4228                 log(DEBUG,"main: no config");
4229                 printf("ERROR: Your config file is missing, this IRCd will self destruct in 10 seconds!\n");
4230                 Exit(ERROR);
4231         }
4232         if (argc > 1) {
4233                 if (!strcmp(argv[1],"-nofork")) {
4234                         nofork = true;
4235                 }
4236         }
4237         if (InspIRCd() == ERROR)
4238         {
4239                 log(DEBUG,"main: daemon function bailed");
4240                 printf("ERROR: could not initialise. Shutting down.\n");
4241                 Exit(ERROR);
4242         }
4243         Exit(TRUE);
4244         return 0;
4245 }
4246
4247 template<typename T> inline string ConvToStr(const T &in)
4248 {
4249         stringstream tmp;
4250         if (!(tmp << in)) return string();
4251         return tmp.str();
4252 }
4253
4254 /* re-allocates a nick in the user_hash after they change nicknames,
4255  * returns a pointer to the new user as it may have moved */
4256
4257 userrec* ReHashNick(char* Old, char* New)
4258 {
4259         user_hash::iterator newnick;
4260         user_hash::iterator oldnick = clientlist.find(Old);
4261
4262         log(DEBUG,"ReHashNick: %s %s",Old,New);
4263
4264         if (!strcasecmp(Old,New))
4265         {
4266                 log(DEBUG,"old nick is new nick, skipping");
4267                 return oldnick->second;
4268         }
4269
4270         if (oldnick == clientlist.end()) return NULL; /* doesnt exist */
4271
4272         log(DEBUG,"ReHashNick: Found hashed nick %s",Old);
4273
4274         clientlist[New] = new userrec();
4275         clientlist[New] = oldnick->second;
4276         /*delete oldnick->second; */
4277         clientlist.erase(oldnick);
4278
4279         log(DEBUG,"ReHashNick: Nick rehashed as %s",New);
4280
4281         return clientlist[New];
4282 }
4283
4284 /* adds or updates an entry in the whowas list */
4285 void AddWhoWas(userrec* u)
4286 {
4287         user_hash::iterator iter = whowas.find(u->nick);
4288         userrec *a = new userrec();
4289         strcpy(a->nick,u->nick);
4290         strcpy(a->ident,u->ident);
4291         strcpy(a->dhost,u->dhost);
4292         strcpy(a->host,u->host);
4293         strcpy(a->fullname,u->fullname);
4294         strcpy(a->server,u->server);
4295         a->signon = u->signon;
4296
4297         /* MAX_WHOWAS:   max number of /WHOWAS items
4298          * WHOWAS_STALE: number of hours before a WHOWAS item is marked as stale and
4299          *               can be replaced by a newer one
4300          */
4301
4302         if (iter == whowas.end())
4303         {
4304                 if (whowas.size() == WHOWAS_MAX)
4305                 {
4306                         for (user_hash::iterator i = whowas.begin(); i != whowas.end(); i++)
4307                         {
4308                                 // 3600 seconds in an hour ;)
4309                                 if ((i->second->signon)<(time(NULL)-(WHOWAS_STALE*3600)))
4310                                 {
4311                                         delete i->second;
4312                                         i->second = a;
4313                                         log(DEBUG,"added WHOWAS entry, purged an old record");
4314                                         return;
4315                                 }
4316                         }
4317                 }
4318                 else
4319                 {
4320                         log(DEBUG,"added fresh WHOWAS entry");
4321                         whowas[a->nick] = a;
4322                 }
4323         }
4324         else
4325         {
4326                 log(DEBUG,"updated WHOWAS entry");
4327                 delete iter->second;
4328                 iter->second = a;
4329         }
4330 }
4331
4332
4333 /* add a client connection to the sockets list */
4334 void AddClient(int socket, char* host, int port, bool iscached)
4335 {
4336         int i;
4337         int blocking = 1;
4338         char resolved[MAXBUF];
4339         string tempnick;
4340         char tn2[MAXBUF];
4341         user_hash::iterator iter;
4342
4343         tempnick = ConvToStr(socket) + "-unknown";
4344         sprintf(tn2,"%d-unknown",socket);
4345
4346         iter = clientlist.find(tempnick);
4347
4348         if (iter != clientlist.end()) return;
4349
4350         /*
4351          * It is OK to access the value here this way since we know
4352          * it exists, we just created it above.
4353          *
4354          * At NO other time should you access a value in a map or a
4355          * hash_map this way.
4356          */
4357         clientlist[tempnick] = new userrec();
4358
4359         NonBlocking(socket);
4360         log(DEBUG,"AddClient: %d %s %d",socket,host,port);
4361
4362         clientlist[tempnick]->fd = socket;
4363         strncpy(clientlist[tempnick]->nick, tn2,NICKMAX);
4364         strncpy(clientlist[tempnick]->host, host,160);
4365         strncpy(clientlist[tempnick]->dhost, host,160);
4366         strncpy(clientlist[tempnick]->server, ServerName,256);
4367         strncpy(clientlist[tempnick]->ident, "unknown",9);
4368         clientlist[tempnick]->registered = 0;
4369         clientlist[tempnick]->signon = time(NULL);
4370         clientlist[tempnick]->nping = time(NULL)+240;
4371         clientlist[tempnick]->lastping = 1;
4372         clientlist[tempnick]->port = port;
4373
4374         if (iscached)
4375         {
4376                 WriteServ(socket,"NOTICE Auth :Found your hostname (cached)...");
4377         }
4378         else
4379         {
4380                 WriteServ(socket,"NOTICE Auth :Looking up your hostname...");
4381         }
4382
4383         // set the registration timeout for this user
4384         unsigned long class_regtimeout = 90;
4385         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4386         {
4387                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4388                 {
4389                         class_regtimeout = (unsigned long)i->registration_timeout;
4390                         break;
4391                 }
4392         }
4393
4394         int class_flood = 0;
4395         for (ClassVector::iterator i = Classes.begin(); i != Classes.end(); i++)
4396         {
4397                 if (match(clientlist[tempnick]->host,i->host) && (i->type == CC_ALLOW))
4398                 {
4399                         class_flood = i->flood;
4400                         break;
4401                 }
4402         }
4403
4404         clientlist[tempnick]->timeout = time(NULL)+class_regtimeout;
4405         clientlist[tempnick]->flood = class_flood;
4406
4407         for (int i = 0; i < MAXCHANS; i++)
4408         {
4409                 clientlist[tempnick]->chans[i].channel = NULL;
4410                 clientlist[tempnick]->chans[i].uc_modes = 0;
4411         }
4412
4413         if (clientlist.size() == MAXCLIENTS)
4414                 kill_link(clientlist[tempnick],"No more connections allowed in this class");
4415 }
4416
4417 void handle_names(char **parameters, int pcnt, userrec *user)
4418 {
4419         chanrec* c;
4420
4421         if (loop_call(handle_names,parameters,pcnt,user,0,pcnt-1,0))
4422                 return;
4423         c = FindChan(parameters[0]);
4424         if (c)
4425         {
4426                 /*WriteServ(user->fd,"353 %s = %s :%s", user->nick, c->name,*/
4427                 userlist(user,c);
4428                 WriteServ(user->fd,"366 %s %s :End of /NAMES list.", user->nick, c->name);
4429         }
4430         else
4431         {
4432                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4433         }
4434 }
4435
4436 void handle_privmsg(char **parameters, int pcnt, userrec *user)
4437 {
4438         userrec *dest;
4439         chanrec *chan;
4440
4441         user->idle_lastmsg = time(NULL);
4442
4443         if (loop_call(handle_privmsg,parameters,pcnt,user,0,pcnt-2,0))
4444                 return;
4445         if (parameters[0][0] == '#')
4446         {
4447                 chan = FindChan(parameters[0]);
4448                 if (chan)
4449                 {
4450                         if ((chan->noexternal) && (!has_channel(user,chan)))
4451                         {
4452                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4453                                 return;
4454                         }
4455                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4456                         {
4457                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4458                                 return;
4459                         }
4460
4461                         int MOD_RESULT = 0;
4462
4463                         FOREACH_RESULT(OnUserPreMessage(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4464                         if (MOD_RESULT) {
4465                                 return;
4466                         }
4467
4468                         ChanExceptSender(chan, user, "PRIVMSG %s :%s", chan->name, parameters[1]);
4469
4470                         // if any users of this channel are on remote servers, broadcast the packet
4471                         char buffer[MAXBUF];
4472                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,chan->name,parameters[1]);
4473                         NetSendToCommon(user,buffer);
4474                 }
4475                 else
4476                 {
4477                         /* no such nick/channel */
4478                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4479                 }
4480                 return;
4481         }
4482
4483         dest = Find(parameters[0]);
4484         if (dest)
4485         {
4486                 if (strcmp(dest->awaymsg,""))
4487                 {
4488                         /* auto respond with aweh msg */
4489                         WriteServ(user->fd,"301 %s %s :%s",user->nick,dest->nick,dest->awaymsg);
4490                 }
4491
4492                 int MOD_RESULT = 0;
4493
4494                 FOREACH_RESULT(OnUserPreMessage(user,dest,TYPE_USER,std::string(parameters[1])));
4495                 if (MOD_RESULT) {
4496                         return;
4497                 }
4498
4499
4500
4501                 if (!strcmp(dest->server,user->server))
4502                 {
4503                         // direct write, same server
4504                         WriteTo(user, dest, "PRIVMSG %s :%s", dest->nick, parameters[1]);
4505                 }
4506                 else
4507                 {
4508                         char buffer[MAXBUF];
4509                         snprintf(buffer,MAXBUF,"P %s %s :%s",user->nick,dest->nick,parameters[1]);
4510                         NetSendToOne(dest->server,buffer);
4511                 }
4512         }
4513         else
4514         {
4515                 /* no such nick/channel */
4516                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4517         }
4518 }
4519
4520 void handle_notice(char **parameters, int pcnt, userrec *user)
4521 {
4522         userrec *dest;
4523         chanrec *chan;
4524
4525         user->idle_lastmsg = time(NULL);
4526
4527         if (loop_call(handle_notice,parameters,pcnt,user,0,pcnt-2,0))
4528                 return;
4529         if (parameters[0][0] == '#')
4530         {
4531                 chan = FindChan(parameters[0]);
4532                 if (chan)
4533                 {
4534                         if ((chan->noexternal) && (!has_channel(user,chan)))
4535                         {
4536                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (no external messages)", user->nick, chan->name);
4537                                 return;
4538                         }
4539                         if ((chan->moderated) && (cstatus(user,chan)<STATUS_VOICE))
4540                         {
4541                                 WriteServ(user->fd,"404 %s %s :Cannot send to channel (+m)", user->nick, chan->name);
4542                                 return;
4543                         }
4544
4545                         int MOD_RESULT = 0;
4546
4547                         FOREACH_RESULT(OnUserPreNotice(user,chan,TYPE_CHANNEL,std::string(parameters[1])));
4548                         if (MOD_RESULT) {
4549                                 return;
4550                         }
4551
4552                         ChanExceptSender(chan, user, "NOTICE %s :%s", chan->name, parameters[1]);
4553
4554                         // if any users of this channel are on remote servers, broadcast the packet
4555                         char buffer[MAXBUF];
4556                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,chan->name,parameters[1]);
4557                         NetSendToCommon(user,buffer);
4558                 }
4559                 else
4560                 {
4561                         /* no such nick/channel */
4562                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4563                 }
4564                 return;
4565         }
4566
4567         dest = Find(parameters[0]);
4568         if (dest)
4569         {
4570                 int MOD_RESULT = 0;
4571
4572                 FOREACH_RESULT(OnUserPreNotice(user,dest,TYPE_USER,std::string(parameters[1])));
4573                 if (MOD_RESULT) {
4574                         return;
4575                 }
4576
4577                 if (!strcmp(dest->server,user->server))
4578                 {
4579                         // direct write, same server
4580                         WriteTo(user, dest, "NOTICE %s :%s", dest->nick, parameters[1]);
4581                 }
4582                 else
4583                 {
4584                         char buffer[MAXBUF];
4585                         snprintf(buffer,MAXBUF,"V %s %s :%s",user->nick,dest->nick,parameters[1]);
4586                         NetSendToOne(dest->server,buffer);
4587                 }
4588         }
4589         else
4590         {
4591                 /* no such nick/channel */
4592                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4593         }
4594 }
4595
4596 char lst[MAXBUF];
4597
4598 char* chlist(userrec *user)
4599 {
4600         int i = 0;
4601         char cmp[MAXBUF];
4602
4603         log(DEBUG,"chlist: %s",user->nick);
4604         strcpy(lst,"");
4605         if (!user)
4606         {
4607                 return lst;
4608         }
4609         for (int i = 0; i != MAXCHANS; i++)
4610         {
4611                 if (user->chans[i].channel != NULL)
4612                 {
4613                         if (user->chans[i].channel->name)
4614                         {
4615                                 strcpy(cmp,user->chans[i].channel->name);
4616                                 strcat(cmp," ");
4617                                 if (!strstr(lst,cmp))
4618                                 {
4619                                         if ((!user->chans[i].channel->c_private) && (!user->chans[i].channel->secret))
4620                                         {
4621                                                 strcat(lst,cmode(user,user->chans[i].channel));
4622                                                 strcat(lst,user->chans[i].channel->name);
4623                                                 strcat(lst," ");
4624                                         }
4625                                 }
4626                         }
4627                 }
4628         }
4629         if (strlen(lst))
4630         {
4631                 lst[strlen(lst)-1] = '\0'; // chop trailing space
4632         }
4633         return lst;
4634 }
4635
4636 void handle_info(char **parameters, int pcnt, userrec *user)
4637 {
4638         WriteServ(user->fd,"371 %s :The Inspire IRCd Project Has been brought to you by the following people..",user->nick);
4639         WriteServ(user->fd,"371 %s :Craig Edwards, Craig McLure, and Others..",user->nick);
4640         WriteServ(user->fd,"371 %s :Will finish this later when i can be arsed :p",user->nick);
4641         FOREACH_MOD OnInfo(user);
4642         WriteServ(user->fd,"374 %s :End of /INFO list",user->nick);
4643 }
4644
4645 void handle_time(char **parameters, int pcnt, userrec *user)
4646 {
4647         time_t rawtime;
4648         struct tm * timeinfo;
4649
4650         time ( &rawtime );
4651         timeinfo = localtime ( &rawtime );
4652         WriteServ(user->fd,"391 %s %s :%s",user->nick,ServerName, asctime (timeinfo) );
4653
4654 }
4655
4656 void handle_whois(char **parameters, int pcnt, userrec *user)
4657 {
4658         userrec *dest;
4659         char *t;
4660
4661         if (loop_call(handle_whois,parameters,pcnt,user,0,pcnt-1,0))
4662                 return;
4663         dest = Find(parameters[0]);
4664         if (dest)
4665         {
4666                 // bug found by phidjit - were able to whois an incomplete connection if it had sent a NICK or USER
4667                 if (dest->registered == 7)
4668                 {
4669                         WriteServ(user->fd,"311 %s %s %s %s * :%s",user->nick, dest->nick, dest->ident, dest->dhost, dest->fullname);
4670                         if ((user == dest) || (strchr(user->modes,'o')))
4671                         {
4672                                 WriteServ(user->fd,"378 %s %s :is connecting from *@%s",user->nick, dest->nick, dest->host);
4673                         }
4674                         if (strcmp(chlist(dest),""))
4675                         {
4676                                 WriteServ(user->fd,"319 %s %s :%s",user->nick, dest->nick, chlist(dest));
4677                         }
4678                         WriteServ(user->fd,"312 %s %s %s :%s",user->nick, dest->nick, dest->server, ServerDesc);
4679                         if (strcmp(dest->awaymsg,""))
4680                         {
4681                                 WriteServ(user->fd,"301 %s %s :%s",user->nick, dest->nick, dest->awaymsg);
4682                         }
4683                         if (strchr(dest->modes,'o'))
4684                         {
4685                                 WriteServ(user->fd,"313 %s %s :is an IRC operator",user->nick, dest->nick);
4686                         }
4687                         FOREACH_MOD OnWhois(user,dest);
4688                         //WriteServ(user->fd,"310 %s %s :is available for help.",user->nick, dest->nick);
4689                         WriteServ(user->fd,"317 %s %s %d %d :seconds idle, signon time",user->nick, dest->nick, abs((dest->idle_lastmsg)-time(NULL)), dest->signon);
4690
4691                         WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, dest->nick);
4692                 }
4693                 else
4694                 {
4695                         WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4696                 }
4697         }
4698         else
4699         {
4700                 /* no such nick/channel */
4701                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4702         }
4703 }
4704
4705 void send_network_quit(const char* nick, const char* reason)
4706 {
4707         char buffer[MAXBUF];
4708         snprintf(buffer,MAXBUF,"Q %s :%s",nick,reason);
4709         NetSendToAll(buffer);
4710 }
4711
4712 void handle_quit(char **parameters, int pcnt, userrec *user)
4713 {
4714         user_hash::iterator iter = clientlist.find(user->nick);
4715         char* reason;
4716
4717         if (user->registered == 7)
4718         {
4719                 /* theres more to do here, but for now just close the socket */
4720                 if (pcnt == 1)
4721                 {
4722                         if (parameters[0][0] == ':')
4723                         {
4724                                 *parameters[0]++;
4725                         }
4726                         reason = parameters[0];
4727
4728                         if (strlen(reason)>MAXQUIT)
4729                         {
4730                                 reason[MAXQUIT-1] = '\0';
4731                         }
4732
4733                         Write(user->fd,"ERROR :Closing link (%s@%s) [%s]",user->ident,user->host,parameters[0]);
4734                         WriteOpers("*** Client exiting: %s!%s@%s [%s]",user->nick,user->ident,user->host,parameters[0]);
4735                         WriteCommonExcept(user,"QUIT :%s%s",PrefixQuit,parameters[0]);
4736
4737                         char buffer[MAXBUF];
4738                         snprintf(buffer,MAXBUF,"Q %s :%s%s",user->nick,PrefixQuit,parameters[0]);
4739                         NetSendToAll(buffer);
4740                 }
4741                 else
4742                 {
4743                         Write(user->fd,"ERROR :Closing link (%s@%s) [QUIT]",user->ident,user->host);
4744                         WriteOpers("*** Client exiting: %s!%s@%s [Client exited]",user->nick,user->ident,user->host);
4745                         WriteCommonExcept(user,"QUIT :Client exited");
4746
4747                         char buffer[MAXBUF];
4748                         snprintf(buffer,MAXBUF,"Q %s :Client exited",user->nick);
4749                         NetSendToAll(buffer);
4750                 }
4751                 FOREACH_MOD OnUserQuit(user);
4752                 AddWhoWas(user);
4753         }
4754
4755         /* push the socket on a stack of sockets due to be closed at the next opportunity */
4756         fd_reap.push_back(user->fd);
4757
4758         if (iter != clientlist.end())
4759         {
4760                 clientlist.erase(iter);
4761                 log(DEBUG,"deleting user hash value %d",iter->second);
4762                 //if ((user) && (user->registered == 7)) {
4763                         //delete user;
4764                 //}
4765         }
4766
4767         if (user->registered == 7) {
4768                 purge_empty_chans();
4769         }
4770 }
4771
4772 void handle_who(char **parameters, int pcnt, userrec *user)
4773 {
4774         chanrec* Ptr = NULL;
4775
4776         /* theres more to do here, but for now just close the socket */
4777         if (pcnt == 1)
4778         {
4779                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")))
4780                 {
4781                         if (user->chans[0].channel)
4782                         {
4783                                 Ptr = user->chans[0].channel;
4784                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4785                                 {
4786                                         if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4787                                         {
4788                                                 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);
4789                                         }
4790                                 }
4791                         }
4792                         if (Ptr)
4793                         {
4794                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4795                         }
4796                         else
4797                         {
4798                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, user->nick);
4799                         }
4800                         return;
4801                 }
4802                 if (parameters[0][0] == '#')
4803                 {
4804                         Ptr = FindChan(parameters[0]);
4805                         if (Ptr)
4806                         {
4807                                 for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4808                                 {
4809                                         if ((has_channel(i->second,Ptr)) && (isnick(i->second->nick)))
4810                                         {
4811                                                 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);
4812                                         }
4813                                 }
4814                                 WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4815                         }
4816                         else
4817                         {
4818                                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
4819                         }
4820                 }
4821                 else
4822                 {
4823                         userrec* u = Find(parameters[0]);
4824                         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);
4825                 }
4826         }
4827         if (pcnt == 2)
4828         {
4829                 if ((!strcmp(parameters[0],"0")) || (!strcmp(parameters[0],"*")) && (!strcmp(parameters[1],"o")))
4830                 {
4831                         Ptr = user->chans[0].channel;
4832                         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4833                         {
4834                                 if ((common_channels(user,i->second)) && (isnick(i->second->nick)))
4835                                 {
4836                                         if (strchr(i->second->modes,'o'))
4837                                         {
4838                                                 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);
4839                                         }
4840                                 }
4841                         }
4842                         WriteServ(user->fd,"315 %s %s :End of /WHO list.",user->nick, Ptr->name);
4843                         return;
4844                 }
4845         }
4846 }
4847
4848 void handle_wallops(char **parameters, int pcnt, userrec *user)
4849 {
4850         WriteWallOps(user,false,"%s",parameters[0]);
4851 }
4852
4853 void handle_list(char **parameters, int pcnt, userrec *user)
4854 {
4855         chanrec* Ptr;
4856
4857         WriteServ(user->fd,"321 %s Channel :Users Name",user->nick);
4858         for (chan_hash::const_iterator i = chanlist.begin(); i != chanlist.end(); i++)
4859         {
4860                 if ((!i->second->c_private) && (!i->second->secret))
4861                 {
4862                         WriteServ(user->fd,"322 %s %s %d :[+%s] %s",user->nick,i->second->name,usercount_i(i->second),chanmodes(i->second),i->second->topic);
4863                 }
4864         }
4865         WriteServ(user->fd,"323 %s :End of channel list.",user->nick);
4866 }
4867
4868
4869 void handle_rehash(char **parameters, int pcnt, userrec *user)
4870 {
4871         WriteServ(user->fd,"382 %s %s :Rehashing",user->nick,CleanFilename(CONFIG_FILE));
4872         ReadConfig();
4873         FOREACH_MOD OnRehash();
4874         WriteOpers("%s is rehashing config file %s",user->nick,CleanFilename(CONFIG_FILE));
4875 }
4876
4877
4878 int usercnt(void)
4879 {
4880         return clientlist.size();
4881 }
4882
4883
4884 int usercount_invisible(void)
4885 {
4886         int c = 0;
4887
4888         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4889         {
4890                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'i'))) c++;
4891         }
4892         return c;
4893 }
4894
4895 int usercount_opers(void)
4896 {
4897         int c = 0;
4898
4899         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4900         {
4901                 if ((i->second->fd) && (isnick(i->second->nick)) && (strchr(i->second->modes,'o'))) c++;
4902         }
4903         return c;
4904 }
4905
4906 int usercount_unknown(void)
4907 {
4908         int c = 0;
4909
4910         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4911         {
4912                 if ((i->second->fd) && (i->second->registered != 7))
4913                         c++;
4914         }
4915         return c;
4916 }
4917
4918 long chancount(void)
4919 {
4920         return chanlist.size();
4921 }
4922
4923 long count_servs(void)
4924 {
4925         int c = 0;
4926         //for (int j = 0; j < 255; j++)
4927         //{
4928         //      if (servers[j] != NULL)
4929         //              c++;
4930         //}
4931         return c;
4932 }
4933
4934 long servercount(void)
4935 {
4936         return count_servs()+1;
4937 }
4938
4939 long local_count()
4940 {
4941         int c = 0;
4942         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
4943         {
4944                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,ServerName))) c++;
4945         }
4946         return c;
4947 }
4948
4949
4950 void handle_lusers(char **parameters, int pcnt, userrec *user)
4951 {
4952         WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,usercnt()-usercount_invisible(),usercount_invisible(),servercount());
4953         WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
4954         WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
4955         WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
4956         WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),count_servs());
4957 }
4958
4959 void handle_admin(char **parameters, int pcnt, userrec *user)
4960 {
4961         WriteServ(user->fd,"256 %s :Administrative info for %s",user->nick,ServerName);
4962         WriteServ(user->fd,"257 %s :Name     - %s",user->nick,AdminName);
4963         WriteServ(user->fd,"258 %s :Nickname - %s",user->nick,AdminNick);
4964         WriteServ(user->fd,"258 %s :E-Mail   - %s",user->nick,AdminEmail);
4965 }
4966
4967 void ShowMOTD(userrec *user)
4968 {
4969         if (!MOTD.size())
4970         {
4971                 WriteServ(user->fd,"422 %s :Message of the day file is missing.",user->nick);
4972                 return;
4973         }
4974         WriteServ(user->fd,"375 %s :- %s message of the day",user->nick,ServerName);
4975         for (int i = 0; i != MOTD.size(); i++)
4976         {
4977                                 WriteServ(user->fd,"372 %s :- %s",user->nick,MOTD[i].c_str());
4978         }
4979         WriteServ(user->fd,"376 %s :End of %s message of the day.",user->nick,ServerName);
4980 }
4981
4982 void ShowRULES(userrec *user)
4983 {
4984         if (!RULES.size())
4985         {
4986                 WriteServ(user->fd,"NOTICE %s :Rules file is missing.",user->nick);
4987                 return;
4988         }
4989         WriteServ(user->fd,"NOTICE %s :%s rules",user->nick,ServerName);
4990         for (int i = 0; i != RULES.size(); i++)
4991         {
4992                                 WriteServ(user->fd,"NOTICE %s :%s",user->nick,RULES[i].c_str());
4993         }
4994         WriteServ(user->fd,"NOTICE %s :End of %s rules.",user->nick,ServerName);
4995 }
4996
4997 /* shows the message of the day, and any other on-logon stuff */
4998 void ConnectUser(userrec *user)
4999 {
5000         user->registered = 7;
5001         user->idle_lastmsg = time(NULL);
5002         log(DEBUG,"ConnectUser: %s",user->nick);
5003
5004         if (strcmp(Passwd(user),"") && (!user->haspassed))
5005         {
5006                 kill_link(user,"Invalid password");
5007                 return;
5008         }
5009         if (IsDenied(user))
5010         {
5011                 kill_link(user,"Unauthorised connection");
5012                 return;
5013         }
5014
5015         WriteServ(user->fd,"NOTICE Auth :Welcome to \002%s\002!",Network);
5016         WriteServ(user->fd,"001 %s :Welcome to the %s IRC Network %s!%s@%s",user->nick,Network,user->nick,user->ident,user->host);
5017         WriteServ(user->fd,"002 %s :Your host is %s, running version %s",user->nick,ServerName,VERSION);
5018         WriteServ(user->fd,"003 %s :This server was created %s %s",user->nick,__TIME__,__DATE__);
5019         WriteServ(user->fd,"004 %s :%s %s iowghraAsORVSxNCWqBzvdHtGI lvhopsmntikrRcaqOALQbSeKVfHGCuzN",user->nick,ServerName,VERSION);
5020         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);
5021         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);
5022         ShowMOTD(user);
5023         FOREACH_MOD OnUserConnect(user);
5024         WriteOpers("*** Client connecting on port %d: %s!%s@%s",user->port,user->nick,user->ident,user->host);
5025
5026         char buffer[MAXBUF];
5027         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);
5028         NetSendToAll(buffer);
5029 }
5030
5031 void handle_version(char **parameters, int pcnt, userrec *user)
5032 {
5033         WriteServ(user->fd,"351 %s :%s %s %s :%s",user->nick,VERSION,"$Revision$ $Date$",ServerName,SYSTEM);
5034 }
5035
5036 void handle_ping(char **parameters, int pcnt, userrec *user)
5037 {
5038         WriteServ(user->fd,"PONG %s :%s",ServerName,parameters[0]);
5039 }
5040
5041 void handle_pong(char **parameters, int pcnt, userrec *user)
5042 {
5043         // set the user as alive so they survive to next ping
5044         user->lastping = 1;
5045 }
5046
5047 void handle_motd(char **parameters, int pcnt, userrec *user)
5048 {
5049         ShowMOTD(user);
5050 }
5051
5052 void handle_rules(char **parameters, int pcnt, userrec *user)
5053 {
5054         ShowRULES(user);
5055 }
5056
5057 void handle_user(char **parameters, int pcnt, userrec *user)
5058 {
5059         if (user->registered < 3)
5060         {
5061                 if (isident(parameters[0]) == 0) {
5062                         // This kinda Sucks, According to the RFC thou, its either this,
5063                         // or "You have already registered" :p -- Craig
5064                         WriteServ(user->fd,"461 %s USER :Not enough parameters",user->nick);
5065                 }
5066                 else {
5067                         WriteServ(user->fd,"NOTICE Auth :No ident response, ident prefixed with ~");
5068                         strcpy(user->ident,"~"); /* we arent checking ident... but these days why bother anyway? */
5069                         strncat(user->ident,parameters[0],IDENTMAX);
5070                         strncpy(user->fullname,parameters[3],128);
5071                         user->registered = (user->registered | 1);
5072                 }
5073         }
5074         else
5075         {
5076                 WriteServ(user->fd,"462 %s :You may not reregister",user->nick);
5077                 return;
5078         }
5079         /* parameters 2 and 3 are local and remote hosts, ignored when sent by client connection */
5080         if (user->registered == 3)
5081         {
5082                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5083                 ConnectUser(user);
5084         }
5085 }
5086
5087 void handle_userhost(char **parameters, int pcnt, userrec *user)
5088 {
5089         char Return[MAXBUF],junk[MAXBUF];
5090         sprintf(Return,"302 %s :",user->nick);
5091         for (int i = 0; i < pcnt; i++)
5092         {
5093                 userrec *u = Find(parameters[i]);
5094                 if (u)
5095                 {
5096                         if (strchr(u->modes,'o'))
5097                         {
5098                                 sprintf(junk,"%s*=+%s@%s ",u->nick,u->ident,u->host);
5099                                 strcat(Return,junk);
5100                         }
5101                         else
5102                         {
5103                                 sprintf(junk,"%s=+%s@%s ",u->nick,u->ident,u->host);
5104                                 strcat(Return,junk);
5105                         }
5106                 }
5107         }
5108         WriteServ(user->fd,Return);
5109 }
5110
5111
5112 void handle_ison(char **parameters, int pcnt, userrec *user)
5113 {
5114         char Return[MAXBUF];
5115         sprintf(Return,"303 %s :",user->nick);
5116         for (int i = 0; i < pcnt; i++)
5117         {
5118                 userrec *u = Find(parameters[i]);
5119                 if (u)
5120                 {
5121                         strcat(Return,u->nick);
5122                         strcat(Return," ");
5123                 }
5124         }
5125         WriteServ(user->fd,Return);
5126 }
5127
5128
5129 void handle_away(char **parameters, int pcnt, userrec *user)
5130 {
5131         if (pcnt)
5132         {
5133                 strcpy(user->awaymsg,parameters[0]);
5134                 WriteServ(user->fd,"306 %s :You have been marked as being away",user->nick);
5135         }
5136         else
5137         {
5138                 strcpy(user->awaymsg,"");
5139                 WriteServ(user->fd,"305 %s :You are no longer marked as being away",user->nick);
5140         }
5141 }
5142
5143 void handle_whowas(char **parameters, int pcnt, userrec* user)
5144 {
5145         user_hash::iterator i = whowas.find(parameters[0]);
5146
5147         if (i == whowas.end())
5148         {
5149                 WriteServ(user->fd,"406 %s %s :There was no such nickname",user->nick,parameters[0]);
5150                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5151         }
5152         else
5153         {
5154                 time_t rawtime = i->second->signon;
5155                 tm *timeinfo;
5156                 char b[MAXBUF];
5157
5158                 timeinfo = localtime(&rawtime);
5159                 strcpy(b,asctime(timeinfo));
5160                 b[strlen(b)-1] = '\0';
5161
5162                 WriteServ(user->fd,"314 %s %s %s %s * :%s",user->nick,i->second->nick,i->second->ident,i->second->dhost,i->second->fullname);
5163                 WriteServ(user->fd,"312 %s %s %s :%s",user->nick,i->second->nick,i->second->server,b);
5164                 WriteServ(user->fd,"369 %s %s :End of WHOWAS",user->nick,parameters[0]);
5165         }
5166
5167 }
5168
5169 void handle_trace(char **parameters, int pcnt, userrec *user)
5170 {
5171         for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5172         {
5173                 if (i->second)
5174                 {
5175                         if (isnick(i->second->nick))
5176                         {
5177                                 if (strchr(i->second->modes,'o'))
5178                                 {
5179                                         WriteServ(user->fd,"205 %s :Oper 0 %s",user->nick,i->second->nick);
5180                                 }
5181                                 else
5182                                 {
5183                                         WriteServ(user->fd,"204 %s :User 0 %s",user->nick,i->second->nick);
5184                                 }
5185                         }
5186                         else
5187                         {
5188                                 WriteServ(user->fd,"203 %s :???? 0 [%s]",user->nick,i->second->host);
5189                         }
5190                 }
5191         }
5192 }
5193
5194 void handle_modules(char **parameters, int pcnt, userrec *user)
5195 {
5196         for (int i = 0; i < module_names.size(); i++)
5197         {
5198                         Version V = modules[i]->GetVersion();
5199                         char modulename[MAXBUF];
5200                         strncpy(modulename,module_names[i].c_str(),256);
5201                         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));
5202         }
5203 }
5204
5205 // calls a handler function for a command
5206
5207 void call_handler(const char* commandname,char **parameters, int pcnt, userrec *user)
5208 {
5209                 for (int i = 0; i < cmdlist.size(); i++)
5210                 {
5211                         if (!strcasecmp(cmdlist[i].command,commandname))
5212                         {
5213                                 if (cmdlist[i].handler_function)
5214                                 {
5215                                         if (pcnt>=cmdlist[i].min_params)
5216                                         {
5217                                                 if (strchr(user->modes,cmdlist[i].flags_needed))
5218                                                 {
5219                                                         cmdlist[i].handler_function(parameters,pcnt,user);
5220                                                 }
5221                                         }
5222                                 }
5223                         }
5224                 }
5225 }
5226
5227 void handle_stats(char **parameters, int pcnt, userrec *user)
5228 {
5229         if (pcnt != 1)
5230         {
5231                 return;
5232         }
5233         if (strlen(parameters[0])>1)
5234         {
5235                 /* make the stats query 1 character long */
5236                 parameters[0][1] = '\0';
5237         }
5238
5239         /* stats m (list number of times each command has been used, plus bytecount) */
5240         if (!strcasecmp(parameters[0],"m"))
5241         {
5242                 for (int i = 0; i < cmdlist.size(); i++)
5243                 {
5244                         if (cmdlist[i].handler_function)
5245                         {
5246                                 if (cmdlist[i].use_count)
5247                                 {
5248                                         /* RPL_STATSCOMMANDS */
5249                                         WriteServ(user->fd,"212 %s %s %d %d",user->nick,cmdlist[i].command,cmdlist[i].use_count,cmdlist[i].total_bytes);
5250                                 }
5251                         }
5252                 }
5253
5254         }
5255
5256         /* stats z (debug and memory info) */
5257         if (!strcasecmp(parameters[0],"z"))
5258         {
5259                 WriteServ(user->fd,"249 %s :Users(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,clientlist.size(),clientlist.size()*sizeof(userrec),clientlist.bucket_count());
5260                 WriteServ(user->fd,"249 %s :Channels(HASH_MAP) %d (%d bytes, %d buckets)",user->nick,chanlist.size(),chanlist.size()*sizeof(chanrec),chanlist.bucket_count());
5261                 WriteServ(user->fd,"249 %s :Commands(VECTOR) %d (%d bytes)",user->nick,cmdlist.size(),cmdlist.size()*sizeof(command_t));
5262                 WriteServ(user->fd,"249 %s :MOTD(VECTOR) %d, RULES(VECTOR) %d",user->nick,MOTD.size(),RULES.size());
5263                 WriteServ(user->fd,"249 %s :address_cache(HASH_MAP) %d (%d buckets)",user->nick,IP.size(),IP.bucket_count());
5264                 WriteServ(user->fd,"249 %s :Modules(VECTOR) %d (%d)",user->nick,modules.size(),modules.size()*sizeof(Module));
5265                 WriteServ(user->fd,"249 %s :ClassFactories(VECTOR) %d (%d)",user->nick,factory.size(),factory.size()*sizeof(ircd_module));
5266                 WriteServ(user->fd,"249 %s :Ports(STATIC_ARRAY) %d",user->nick,boundPortCount);
5267         }
5268
5269         /* stats o */
5270         if (!strcasecmp(parameters[0],"o"))
5271         {
5272                 for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5273                 {
5274                         char LoginName[MAXBUF];
5275                         char HostName[MAXBUF];
5276                         char OperType[MAXBUF];
5277                         ConfValue("oper","name",i,LoginName,&config_f);
5278                         ConfValue("oper","host",i,HostName,&config_f);
5279                         ConfValue("oper","type",i,OperType,&config_f);
5280                         WriteServ(user->fd,"243 %s O %s * %s %s 0",user->nick,HostName,LoginName,OperType);
5281                 }
5282         }
5283
5284         /* stats l (show user I/O stats) */
5285         if (!strcasecmp(parameters[0],"l"))
5286         {
5287                 WriteServ(user->fd,"211 %s :server:port nick bytes_in cmds_in bytes_out cmds_out",user->nick);
5288                 for (user_hash::iterator i = clientlist.begin(); i != clientlist.end(); i++)
5289                 {
5290                         if (isnick(i->second->nick))
5291                         {
5292                                 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);
5293                         }
5294                         else
5295                         {
5296                                 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);
5297                         }
5298
5299                 }
5300         }
5301
5302         /* stats u (show server uptime) */
5303         if (!strcasecmp(parameters[0],"u"))
5304         {
5305                 time_t current_time = 0;
5306                 current_time = time(NULL);
5307                 time_t server_uptime = current_time - startup_time;
5308                 struct tm* stime;
5309                 stime = gmtime(&server_uptime);
5310                 /* i dont know who the hell would have an ircd running for over a year nonstop, but
5311                  * Craig suggested this, and it seemed a good idea so in it went */
5312                 if (stime->tm_year > 70)
5313                 {
5314                         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);
5315                 }
5316                 else
5317                 {
5318                         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);
5319                 }
5320         }
5321
5322         WriteServ(user->fd,"219 %s %s :End of /STATS report",user->nick,parameters[0]);
5323         WriteOpers("*** Notice: Stats '%s' requested by %s (%s@%s)",parameters[0],user->nick,user->ident,user->host);
5324
5325 }
5326
5327 void handle_connect(char **parameters, int pcnt, userrec *user)
5328 {
5329         char Link_ServerName[1024];
5330         char Link_IPAddr[1024];
5331         char Link_Port[1024];
5332         char Link_Pass[1024];
5333         int LinkPort;
5334         bool found = false;
5335
5336         for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
5337         {
5338                 if (!found)
5339                 {
5340                         ConfValue("link","name",i,Link_ServerName,&config_f);
5341                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
5342                         ConfValue("link","port",i,Link_Port,&config_f);
5343                         ConfValue("link","sendpass",i,Link_Pass,&config_f);
5344                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
5345                         LinkPort = atoi(Link_Port);
5346                         if (match(Link_ServerName,parameters[0])) {
5347                                 found = true;
5348                                 break;
5349                         }
5350                 }
5351         }
5352
5353         if (!found) {
5354                 WriteServ(user->fd,"NOTICE %s :*** Failed to connect to %s: No servers matching this pattern are configured for linking.",user->nick,parameters[0]);
5355                 return;
5356         }
5357
5358         // TODO: Perform a check here to stop a server being linked twice!
5359
5360         WriteServ(user->fd,"NOTICE %s :*** Connecting to %s (%s) port %s...",user->nick,Link_ServerName,Link_IPAddr,Link_Port);
5361
5362         if (me[defaultRoute])
5363         {
5364                 me[defaultRoute]->BeginLink(Link_IPAddr,LinkPort,Link_Pass,Link_ServerName,me[defaultRoute]->port);
5365                 return;
5366         }
5367         else
5368         {
5369                 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);
5370         }
5371 }
5372
5373 void handle_squit(char **parameters, int pcnt, userrec *user)
5374 {
5375         // send out an squit across the mesh and then clear the server list (for local squit)
5376 }
5377
5378 char islast(const char* s)
5379 {
5380         char c = '`';
5381         for (int j = 0; j < 32; j++)
5382         {
5383                 if (me[j] != NULL)
5384                 {
5385                         for (int k = 0; k < me[j]->connectors.size(); k++)
5386                         {
5387                                 if (strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5388                                 {
5389                                         c = '|';
5390                                 }
5391                                 if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),s))
5392                                 {
5393                                         c = '`';
5394                                 }
5395                         }
5396                 }
5397         }
5398         return c;
5399 }
5400
5401 long map_count(const char* s)
5402 {
5403         int c = 0;
5404         for (user_hash::const_iterator i = clientlist.begin(); i != clientlist.end(); i++)
5405         {
5406                 if ((i->second->fd) && (isnick(i->second->nick)) && (!strcasecmp(i->second->server,s))) c++;
5407         }
5408         return c;
5409 }
5410
5411 void handle_links(char **parameters, int pcnt, userrec *user)
5412 {
5413         WriteServ(user->fd,"364 %s %s %s :0 %s",user->nick,ServerName,ServerName,ServerDesc);
5414         for (int j = 0; j < 32; j++)
5415         {
5416                 if (me[j] != NULL)
5417                 {
5418                         for (int k = 0; k < me[j]->connectors.size(); k++)
5419                         {
5420                                 WriteServ(user->fd,"364 %s %s %s :1 %s",user->nick,me[j]->connectors[k].GetServerName().c_str(),ServerName,me[j]->connectors[k].GetDescription().c_str());
5421                         }
5422                 }
5423         }
5424         WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
5425 }
5426
5427 void handle_map(char **parameters, int pcnt, userrec *user)
5428 {
5429         char line[MAXBUF];
5430         snprintf(line,MAXBUF,"006 %s :%s",user->nick,ServerName);
5431         while (strlen(line) < 50)
5432                 strcat(line," ");
5433         WriteServ(user->fd,"%s%d (%.2f%%)",line,local_count(),(float)(((float)local_count()/(float)usercnt())*100));
5434         for (int j = 0; j < 32; j++)
5435         {
5436                 if (me[j] != NULL)
5437                 {
5438                         for (int k = 0; k < me[j]->connectors.size(); k++)
5439                         {
5440                                 snprintf(line,MAXBUF,"006 %s :%c-%s",user->nick,islast(me[j]->connectors[k].GetServerName().c_str()),me[j]->connectors[k].GetServerName().c_str());
5441                                 while (strlen(line) < 50)
5442                                         strcat(line," ");
5443                                 WriteServ(user->fd,"%s%d (%.2f%%)",line,map_count(me[j]->connectors[k].GetServerName().c_str()),(float)(((float)map_count(me[j]->connectors[k].GetServerName().c_str())/(float)usercnt())*100));
5444                         }
5445                 }
5446         }
5447         WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
5448 }
5449
5450
5451 void handle_oper(char **parameters, int pcnt, userrec *user)
5452 {
5453         char LoginName[MAXBUF];
5454         char Password[MAXBUF];
5455         char OperType[MAXBUF];
5456         char TypeName[MAXBUF];
5457         char Hostname[MAXBUF];
5458         int i,j;
5459
5460         for (int i = 0; i < ConfValueEnum("oper",&config_f); i++)
5461         {
5462                 ConfValue("oper","name",i,LoginName,&config_f);
5463                 ConfValue("oper","password",i,Password,&config_f);
5464                 if ((!strcmp(LoginName,parameters[0])) && (!strcmp(Password,parameters[1])))
5465                 {
5466                         /* correct oper credentials */
5467                         ConfValue("oper","type",i,OperType,&config_f);
5468                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,OperType);
5469                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,OperType);
5470                         WriteServ(user->fd,"MODE %s :+o",user->nick);
5471                         for (j =0; j < ConfValueEnum("type",&config_f); j++)
5472                         {
5473                                 ConfValue("type","name",j,TypeName,&config_f);
5474                                 if (!strcmp(TypeName,OperType))
5475                                 {
5476                                         /* found this oper's opertype */
5477                                         ConfValue("type","host",j,Hostname,&config_f);
5478                                         ChangeDisplayedHost(user,Hostname);
5479                                 }
5480                         }
5481                         if (!strchr(user->modes,'o'))
5482                         {
5483                                 strcat(user->modes,"o");
5484                         }
5485                         FOREACH_MOD OnOper(user);
5486                         return;
5487                 }
5488         }
5489         /* no such oper */
5490         WriteServ(user->fd,"491 %s :Invalid oper credentials",user->nick);
5491         WriteOpers("*** WARNING! Failed oper attempt by %s!%s@%s!",user->nick,user->ident,user->host);
5492 }
5493
5494 void handle_nick(char **parameters, int pcnt, userrec *user)
5495 {
5496         if (pcnt < 1)
5497         {
5498                 log(DEBUG,"not enough params for handle_nick");
5499                 return;
5500         }
5501         if (!parameters[0])
5502         {
5503                 log(DEBUG,"invalid parameter passed to handle_nick");
5504                 return;
5505         }
5506         if (!strlen(parameters[0]))
5507         {
5508                 log(DEBUG,"zero length new nick passed to handle_nick");
5509                 return;
5510         }
5511         if (!user)
5512         {
5513                 log(DEBUG,"invalid user passed to handle_nick");
5514                 return;
5515         }
5516         if (!user->nick)
5517         {
5518                 log(DEBUG,"invalid old nick passed to handle_nick");
5519                 return;
5520         }
5521         if (!strcasecmp(user->nick,parameters[0]))
5522         {
5523                 log(DEBUG,"old nick is new nick, skipping");
5524                 return;
5525         }
5526         else
5527         {
5528                 if (strlen(parameters[0]) > 1)
5529                 {
5530                         if (parameters[0][0] == ':')
5531                         {
5532                                 *parameters[0]++;
5533                         }
5534                 }
5535                 if ((Find(parameters[0])) && (Find(parameters[0]) != user))
5536                 {
5537                         WriteServ(user->fd,"433 %s %s :Nickname is already in use.",user->nick,parameters[0]);
5538                         return;
5539                 }
5540         }
5541         if (isnick(parameters[0]) == 0)
5542         {
5543                 WriteServ(user->fd,"432 %s %s :Erroneous Nickname",user->nick,parameters[0]);
5544                 return;
5545         }
5546
5547         if (user->registered == 7)
5548         {
5549                 WriteCommon(user,"NICK %s",parameters[0]);
5550
5551                 // Q token must go to ALL servers!!!
5552                 char buffer[MAXBUF];
5553                 snprintf(buffer,MAXBUF,"n %s %s",user->nick,parameters[0]);
5554                 NetSendToAll(buffer);
5555
5556         }
5557
5558         /* change the nick of the user in the users_hash */
5559         user = ReHashNick(user->nick, parameters[0]);
5560         /* actually change the nick within the record */
5561         if (!user) return;
5562         if (!user->nick) return;
5563
5564         strncpy(user->nick, parameters[0],NICKMAX);
5565
5566         log(DEBUG,"new nick set: %s",user->nick);
5567
5568         if (user->registered < 3)
5569                 user->registered = (user->registered | 2);
5570         if (user->registered == 3)
5571         {
5572                 /* user is registered now, bit 0 = USER command, bit 1 = sent a NICK command */
5573                 ConnectUser(user);
5574         }
5575         log(DEBUG,"exit nickchange: %s",user->nick);
5576 }
5577
5578 void force_nickchange(userrec* user,const char* newnick)
5579 {
5580         char nick[MAXBUF];
5581         strcpy(nick,"");
5582
5583         if (user)
5584         {
5585                 if (newnick)
5586                 {
5587                         strncpy(nick,newnick,MAXBUF);
5588                 }
5589                 if (user->registered == 7)
5590                 {
5591                         char* pars[1];
5592                         pars[0] = nick;
5593                         handle_nick(pars,1,user);
5594                 }
5595         }
5596 }
5597
5598
5599 int process_parameters(char **command_p,char *parameters)
5600 {
5601         int i = 0;
5602         int j = 0;
5603         int q = 0;
5604         q = strlen(parameters);
5605         if (!q)
5606         {
5607                 /* no parameters, command_p invalid! */
5608                 return 0;
5609         }
5610         if (parameters[0] == ':')
5611         {
5612                 command_p[0] = parameters+1;
5613                 return 1;
5614         }
5615         if (q)
5616         {
5617                 if ((strchr(parameters,' ')==NULL) || (parameters[0] == ':'))
5618                 {
5619                         /* only one parameter */
5620                         command_p[0] = parameters;
5621                         if (parameters[0] == ':')
5622                         {
5623                                 if (strchr(parameters,' ') != NULL)
5624                                 {
5625                                         command_p[0]++;
5626                                 }
5627                         }
5628                         return 1;
5629                 }
5630         }
5631         command_p[j++] = parameters;
5632         for (int i = 0; i <= q; i++)
5633         {
5634                 if (parameters[i] == ' ')
5635                 {
5636                         command_p[j++] = parameters+i+1;
5637                         parameters[i] = '\0';
5638                         if (command_p[j-1][0] == ':')
5639                         {
5640                                 *command_p[j-1]++; /* remove dodgy ":" */
5641                                 break;
5642                                 /* parameter like this marks end of the sequence */
5643                         }
5644                 }
5645         }
5646         return j; /* returns total number of items in the list */
5647 }
5648
5649 void process_command(userrec *user, char* cmd)
5650 {
5651         char *parameters;
5652         char *command;
5653         char *command_p[127];
5654         char p[MAXBUF], temp[MAXBUF];
5655         int i, j, items, cmd_found;
5656
5657         for (int i = 0; i < 127; i++)
5658                 command_p[i] = NULL;
5659
5660         if (!user)
5661         {
5662                 return;
5663         }
5664         if (!cmd)
5665         {
5666                 return;
5667         }
5668         if (!strcmp(cmd,""))
5669         {
5670                 return;
5671         }
5672
5673         int total_params = 0;
5674         if (strlen(cmd)>2)
5675         {
5676                 for (int q = 0; q < strlen(cmd)-1; q++)
5677                 {
5678                         if ((cmd[q] == ' ') && (cmd[q+1] == ':'))
5679                         {
5680                                 total_params++;
5681                                 // found a 'trailing', we dont count them after this.
5682                                 break;
5683                         }
5684                         if (cmd[q] == ' ')
5685                                 total_params++;
5686                 }
5687         }
5688
5689         // another phidjit bug...
5690         if (total_params > 126)
5691         {
5692                 kill_link(user,"Protocol violation (1)");
5693                 return;
5694         }
5695
5696         strcpy(temp,cmd);
5697
5698         std::string tmp = cmd;
5699         for (int i = 0; i <= MODCOUNT; i++)
5700         {
5701                 std::string oldtmp = tmp;
5702                 modules[i]->OnServerRaw(tmp,true);
5703                 if (oldtmp != tmp)
5704                 {
5705                         log(DEBUG,"A Module changed the input string!");
5706                         log(DEBUG,"New string: %s",tmp.c_str());
5707                         log(DEBUG,"Old string: %s",oldtmp.c_str());
5708                         break;
5709                 }
5710         }
5711         strncpy(cmd,tmp.c_str(),MAXBUF);
5712         strcpy(temp,cmd);
5713
5714         if (!strchr(cmd,' '))
5715         {
5716                 /* no parameters, lets skip the formalities and not chop up
5717                  * the string */
5718                 log(DEBUG,"About to preprocess command with no params");
5719                 items = 0;
5720                 command_p[0] = NULL;
5721                 parameters = NULL;
5722                 for (int i = 0; i <= strlen(cmd); i++)
5723                 {
5724                         cmd[i] = toupper(cmd[i]);
5725                 }
5726                 log(DEBUG,"Preprocess done length=%d",strlen(cmd));
5727                 command = cmd;
5728         }
5729         else
5730         {
5731                 strcpy(cmd,"");
5732                 j = 0;
5733                 /* strip out extraneous linefeeds through mirc's crappy pasting (thanks Craig) */
5734                 for (int i = 0; i < strlen(temp); i++)
5735                 {
5736                         if ((temp[i] != 10) && (temp[i] != 13) && (temp[i] != 0) && (temp[i] != 7))
5737                         {
5738                                 cmd[j++] = temp[i];
5739                                 cmd[j] = 0;
5740                         }
5741                 }
5742                 /* split the full string into a command plus parameters */
5743                 parameters = p;
5744                 strcpy(p," ");
5745                 command = cmd;
5746                 if (strchr(cmd,' '))
5747                 {
5748                         for (int i = 0; i <= strlen(cmd); i++)
5749                         {
5750                                 /* capitalise the command ONLY, leave params intact */
5751                                 cmd[i] = toupper(cmd[i]);
5752                                 /* are we nearly there yet?! :P */
5753                                 if (cmd[i] == ' ')
5754                                 {
5755                                         command = cmd;
5756                                         parameters = cmd+i+1;
5757                                         cmd[i] = '\0';
5758                                         break;
5759                                 }
5760                         }
5761                 }
5762                 else
5763                 {
5764                         for (int i = 0; i <= strlen(cmd); i++)
5765                         {
5766                                 cmd[i] = toupper(cmd[i]);
5767                         }
5768                 }
5769
5770         }
5771         cmd_found = 0;
5772
5773         if (strlen(command)>MAXCOMMAND)
5774         {
5775                 kill_link(user,"Protocol violation (2)");
5776                 return;
5777         }
5778
5779         for (int x = 0; x < strlen(command); x++)
5780         {
5781                 if (((command[x] < 'A') || (command[x] > 'Z')) && (command[x] != '.'))
5782                 {
5783                         if (((command[x] < '0') || (command[x]> '9')) && (command[x] != '-'))
5784                         {
5785                                 if (strchr("@!\"$%^&*(){}[]_-=+;:'#~,.<>/?\\|`",command[x]))
5786                                 {
5787                                         kill_link(user,"Protocol violation (3)");
5788                                         return;
5789                                 }
5790                         }
5791                 }
5792         }
5793
5794         for (int i = 0; i != cmdlist.size(); i++)
5795         {
5796                 if (strcmp(cmdlist[i].command,""))
5797                 {
5798                         if (strlen(command)>=(strlen(cmdlist[i].command))) if (!strncmp(command, cmdlist[i].command,MAXCOMMAND))
5799                         {
5800                                 log(DEBUG,"Found matching command");
5801
5802                                 if (parameters)
5803                                 {
5804                                         if (strcmp(parameters,""))
5805                                         {
5806                                                 items = process_parameters(command_p,parameters);
5807                                         }
5808                                         else
5809                                         {
5810                                                 items = 0;
5811                                                 command_p[0] = NULL;
5812                                         }
5813                                 }
5814                                 else
5815                                 {
5816                                         items = 0;
5817                                         command_p[0] = NULL;
5818                                 }
5819
5820                                 if (user)
5821                                 {
5822                                         log(DEBUG,"Processing command");
5823
5824                                         /* activity resets the ping pending timer */
5825                                         user->nping = time(NULL) + 120;
5826                                         if ((items) < cmdlist[i].min_params)
5827                                         {
5828                                                 log(DEBUG,"process_command: not enough parameters: %s %s",user->nick,command);
5829                                                 WriteServ(user->fd,"461 %s %s :Not enough parameters",user->nick,command);
5830                                                 return;
5831                                         }
5832                                         if ((!strchr(user->modes,cmdlist[i].flags_needed)) && (cmdlist[i].flags_needed))
5833                                         {
5834                                                 log(DEBUG,"process_command: permission denied: %s %s",user->nick,command);
5835                                                 WriteServ(user->fd,"481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
5836                                                 cmd_found = 1;
5837                                                 return;
5838                                         }
5839                                         /* if the command isnt USER, PASS, or NICK, and nick is empty,
5840                                          * deny command! */
5841                                         if ((strncmp(command,"USER",4)) && (strncmp(command,"NICK",4)) && (strncmp(command,"PASS",4)))
5842                                         {
5843                                                 if ((!isnick(user->nick)) || (user->registered != 7))
5844                                                 {
5845                                                         log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5846                                                         WriteServ(user->fd,"451 %s :You have not registered",command);
5847                                                         return;
5848                                                 }
5849                                         }
5850                                         if ((user->registered == 7) || (!strcmp(command,"USER")) || (!strcmp(command,"NICK")) || (!strcmp(command,"PASS")))
5851                                         {
5852                                                 log(DEBUG,"process_command: handler: %s %s %d",user->nick,command,items);
5853                                                 if (cmdlist[i].handler_function)
5854                                                 {
5855                                                         /* ikky /stats counters */
5856                                                         if (temp)
5857                                                         {
5858                                                                 if (user)
5859                                                                 {
5860                                                                         user->bytes_in += strlen(temp);
5861                                                                         user->cmds_in++;
5862                                                                 }
5863                                                                 cmdlist[i].use_count++;
5864                                                                 cmdlist[i].total_bytes+=strlen(temp);
5865                                                         }
5866
5867                                                         /* WARNING: nothing may come after the
5868                                                          * command handler call, as the handler
5869                                                          * may free the user structure! */
5870
5871                                                         cmdlist[i].handler_function(command_p,items,user);
5872                                                 }
5873                                                 return;
5874                                         }
5875                                         else
5876                                         {
5877                                                 log(DEBUG,"process_command: not registered: %s %s",user->nick,command);
5878                                                 WriteServ(user->fd,"451 %s :You have not registered",command);
5879                                                 return;
5880                                         }
5881                                 }
5882                                 cmd_found = 1;
5883                         }
5884                 }
5885         }
5886         if ((!cmd_found) && (user))
5887         {
5888                 log(DEBUG,"process_command: not in table: %s %s",user->nick,command);
5889                 WriteServ(user->fd,"421 %s %s :Unknown command",user->nick,command);
5890         }
5891 }
5892
5893
5894 void createcommand(char* cmd, handlerfunc f, char flags, int minparams)
5895 {
5896         command_t comm;
5897         /* create the command and push it onto the table */
5898         strcpy(comm.command,cmd);
5899         comm.handler_function = f;
5900         comm.flags_needed = flags;
5901         comm.min_params = minparams;
5902         comm.use_count = 0;
5903         comm.total_bytes = 0;
5904         cmdlist.push_back(comm);
5905         log(DEBUG,"Added command %s (%d parameters)",cmd,minparams);
5906 }
5907
5908 void SetupCommandTable(void)
5909 {
5910         createcommand("USER",handle_user,0,4);
5911         createcommand("NICK",handle_nick,0,1);
5912         createcommand("QUIT",handle_quit,0,0);
5913         createcommand("VERSION",handle_version,0,0);
5914         createcommand("PING",handle_ping,0,1);
5915         createcommand("PONG",handle_pong,0,1);
5916         createcommand("ADMIN",handle_admin,0,0);
5917         createcommand("PRIVMSG",handle_privmsg,0,2);
5918         createcommand("INFO",handle_info,0,0);
5919         createcommand("TIME",handle_time,0,0);
5920         createcommand("WHOIS",handle_whois,0,1);
5921         createcommand("WALLOPS",handle_wallops,'o',1);
5922         createcommand("NOTICE",handle_notice,0,2);
5923         createcommand("JOIN",handle_join,0,1);
5924         createcommand("NAMES",handle_names,0,1);
5925         createcommand("PART",handle_part,0,1);
5926         createcommand("KICK",handle_kick,0,2);
5927         createcommand("MODE",handle_mode,0,1);
5928         createcommand("TOPIC",handle_topic,0,1);
5929         createcommand("WHO",handle_who,0,1);
5930         createcommand("MOTD",handle_motd,0,0);
5931         createcommand("RULES",handle_rules,0,0);
5932         createcommand("OPER",handle_oper,0,2);
5933         createcommand("LIST",handle_list,0,0);
5934         createcommand("DIE",handle_die,'o',1);
5935         createcommand("RESTART",handle_restart,'o',1);
5936         createcommand("KILL",handle_kill,'o',2);
5937         createcommand("REHASH",handle_rehash,'o',0);
5938         createcommand("LUSERS",handle_lusers,0,0);
5939         createcommand("STATS",handle_stats,0,1);
5940         createcommand("USERHOST",handle_userhost,0,1);
5941         createcommand("AWAY",handle_away,0,0);
5942         createcommand("ISON",handle_ison,0,0);
5943         createcommand("SUMMON",handle_summon,0,0);
5944         createcommand("USERS",handle_users,0,0);
5945         createcommand("INVITE",handle_invite,0,2);
5946         createcommand("PASS",handle_pass,0,1);
5947         createcommand("TRACE",handle_trace,'o',0);
5948         createcommand("WHOWAS",handle_whowas,0,1);
5949         createcommand("CONNECT",handle_connect,'o',1);
5950         createcommand("SQUIT",handle_squit,'o',1);
5951         createcommand("MODULES",handle_modules,'o',0);
5952         createcommand("LINKS",handle_links,0,0);
5953         createcommand("MAP",handle_map,0,0);
5954 }
5955
5956 void process_buffer(const char* cmdbuf,userrec *user)
5957 {
5958         if (!user)
5959         {
5960                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5961                 return;
5962         }
5963         char cmd[MAXBUF];
5964         int i;
5965         if (!cmdbuf)
5966         {
5967                 log(DEFAULT,"*** BUG *** process_buffer was given an invalid parameter");
5968                 return;
5969         }
5970         if (!strcmp(cmdbuf,""))
5971         {
5972                 return;
5973         }
5974         strncpy(cmd,cmdbuf,MAXBUF);
5975         if (!strcmp(cmd,""))
5976         {
5977                 return;
5978         }
5979         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5980         {
5981                 cmd[strlen(cmd)-1] = '\0';
5982         }
5983         if ((cmd[strlen(cmd)-1] == 13) || (cmd[strlen(cmd)-1] == 10))
5984         {
5985                 cmd[strlen(cmd)-1] = '\0';
5986         }
5987         if (!strcmp(cmd,""))
5988         {
5989                 return;
5990         }
5991         log(DEBUG,"InspIRCd: processing: %s %s",user->nick,cmd);
5992         tidystring(cmd);
5993         if ((user) && (cmd))
5994         {
5995                 process_command(user,cmd);
5996         }
5997 }
5998
5999 void DoSync(serverrec* serv, char* udp_host)
6000 {
6001         char data[MAXBUF];
6002         // send start of sync marker: Y <timestamp>
6003         // at this point the ircd receiving it starts broadcasting this netburst to all ircds
6004         // except the ones its receiving it from.
6005         snprintf(data,MAXBUF,"Y %d",time(NULL));
6006         serv->SendPacket(data,udp_host);
6007         // send users and channels
6008         for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
6009         {
6010                 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);
6011                 serv->SendPacket(data,udp_host);
6012                 if (strcmp(chlist(u->second),""))
6013                 {
6014                         snprintf(data,MAXBUF,"J %s %s",u->second->nick,chlist(u->second));
6015                         serv->SendPacket(data,udp_host);
6016                 }
6017         }
6018         // send channel modes, topics etc...
6019         for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++)
6020         {
6021                 snprintf(data,MAXBUF,"M %s +%s",c->second->name,chanmodes(c->second));
6022                 serv->SendPacket(data,udp_host);
6023                 if (strcmp(c->second->topic,""))
6024                 {
6025                         snprintf(data,MAXBUF,"T %d %s %s :%s",c->second->topicset,c->second->setby,c->second->name,c->second->topic);
6026                         serv->SendPacket(data,udp_host);
6027                 }
6028                 // send current banlist
6029
6030                 for (BanList::iterator b = c->second->bans.begin(); b != c->second->bans.end(); b++)
6031                 {
6032                         snprintf(data,MAXBUF,"M %s +b %s",b->set_time,c->second->name,b->data);
6033                         serv->SendPacket(data,udp_host);
6034                 }
6035         }
6036         // send end of sync marker: E <timestamp>
6037         snprintf(data,MAXBUF,"F %d",time(NULL));
6038         serv->SendPacket(data,udp_host);
6039         // ircd sends its serverlist after the end of sync here
6040 }
6041
6042
6043 void handle_V(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6044 {
6045         char* src = strtok(params," ");
6046         char* dest = strtok(NULL," :");
6047         char* text = strtok(NULL,"\r\n");
6048         text++;
6049
6050         userrec* user = Find(src);
6051         if (user)
6052         {
6053                 userrec* dst = Find(dest);
6054
6055                 if (dst)
6056                 {
6057                         WriteTo(user, dst, "NOTICE %s :%s", dst->nick, text);
6058                 }
6059                 else
6060                 {
6061                         chanrec* d = FindChan(dest);
6062                         if (d)
6063                         {
6064                                 ChanExceptSender(d, user, "NOTICE %s :%s", d->name, text);
6065                         }
6066                 }
6067         }
6068
6069 }
6070
6071
6072 void handle_P(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6073 {
6074         char* src = strtok(params," ");
6075         char* dest = strtok(NULL," :");
6076         char* text = strtok(NULL,"\r\n");
6077         text++;
6078
6079         userrec* user = Find(src);
6080         if (user)
6081         {
6082                 userrec* dst = Find(dest);
6083
6084                 if (dst)
6085                 {
6086                         WriteTo(user, dst, "PRIVMSG %s :%s", dst->nick, text);
6087                 }
6088                 else
6089                 {
6090                         chanrec* d = FindChan(dest);
6091                         if (d)
6092                         {
6093                                 ChanExceptSender(d, user, "PRIVMSG %s :%s", d->name, text);
6094                         }
6095                 }
6096         }
6097
6098 }
6099
6100 void handle_i(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6101 {
6102         char* nick = strtok(params," ");
6103         char* from = strtok(NULL," ");
6104         char* channel = strtok(NULL," ");
6105         userrec* u = Find(nick);
6106         userrec* user = Find(from);
6107         chanrec* c = FindChan(channel);
6108         if ((c) && (u) && (user))
6109         {
6110                 u->InviteTo(c->name);
6111                 WriteFrom(u->fd,user,"INVITE %s :%s",u->nick,c->name);
6112         }
6113 }
6114
6115 void handle_t(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6116 {
6117         char* setby = strtok(params," ");
6118         char* channel = strtok(NULL," :");
6119         char* topic = strtok(NULL,"\r\n");
6120         topic++;
6121         userrec* u = Find(setby);
6122         chanrec* c = FindChan(channel);
6123         if ((c) && (u))
6124         {
6125                 WriteChannelLocal(c,u,"TOPIC %s :%s",c->name,topic);
6126                 strncpy(c->topic,topic,MAXTOPIC);
6127                 strncpy(c->setby,u->nick,NICKMAX);
6128         }
6129 }
6130
6131
6132 void handle_T(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6133 {
6134         char* tm = strtok(params," ");
6135         char* setby = strtok(NULL," ");
6136         char* channel = strtok(NULL," :");
6137         char* topic = strtok(NULL,"\r\n");
6138         topic++;
6139         time_t TS = atoi(tm);
6140         chanrec* c = FindChan(channel);
6141         if (c)
6142         {
6143                 // in the case of topics and TS, the *NEWER*
6144                 if (TS <= c->topicset)
6145                 {
6146                         WriteChannelLocal(c,NULL,"TOPIC %s :%s",c->name,topic);
6147                         strncpy(c->topic,topic,MAXTOPIC);
6148                         strncpy(c->setby,setby,NICKMAX);
6149                 }
6150         }
6151 }
6152
6153 void handle_M(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6154 {
6155         char* pars[128];
6156         char original[MAXBUF],target[MAXBUF];
6157         strncpy(original,params,MAXBUF);
6158         int index = 0;
6159         char* parameter = strtok(params," ");
6160         strncpy(target,parameter,MAXBUF);
6161         while (parameter)
6162         {
6163                 pars[index++] = parameter;
6164                 parameter = strtok(NULL," ");
6165         }
6166         merge_mode(pars,index);
6167         if (FindChan(target))
6168         {
6169                 WriteChannelLocal(FindChan(target), NULL, "MODE %s",original);
6170         }
6171         if (Find(target))
6172         {
6173                 WriteTo(NULL,Find(target),"MODE %s",original);
6174         }
6175 }
6176
6177 // m is modes set by users only (not servers) valid targets are channels or users.
6178
6179 void handle_m(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6180 {
6181         // m blah #chatspike +b *!test@*4
6182         char* pars[128];
6183         char original[MAXBUF];
6184         strncpy(original,params,MAXBUF);
6185
6186         if (!strchr(params,' '))
6187         {
6188                 WriteOpers("WARNING! 'm' token in data stream without any parameters! Something fishy is going on!");
6189                 return;
6190         }
6191
6192         int index = 0;
6193
6194         char* src = strtok(params," ");
6195         userrec* user = Find(src);
6196
6197         if (user)
6198         {
6199                 log(DEBUG,"Found user: %s",user->nick);
6200                 char* parameter = strtok(NULL," ");
6201                 while (parameter)
6202                 {
6203                         pars[index++] = parameter;
6204                         parameter = strtok(NULL," ");
6205                 }
6206
6207                 log(DEBUG,"Calling merge_mode2");
6208                 merge_mode2(pars,index,user);
6209         }
6210 }
6211
6212
6213 void handle_L(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6214 {
6215         char* nick = strtok(params," ");
6216         char* channel = strtok(NULL," :");
6217         char* reason = strtok(NULL,"\r\n");
6218         userrec* user = Find(nick);
6219         reason++;
6220         if (user)
6221         {
6222                 if (strcmp(reason,""))
6223                 {
6224                         del_channel(user,channel,reason,true);
6225                 }
6226                 else
6227                 {
6228                         del_channel(user,channel,NULL,true);
6229                 }
6230         }
6231 }
6232
6233 void handle_K(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6234 {
6235         char* src = strtok(params," ");
6236         char* nick = strtok(NULL," :");
6237         char* reason = strtok(NULL,"\r\n");
6238         char kreason[MAXBUF];
6239         reason++;
6240
6241         userrec* u = Find(nick);
6242         userrec* user = Find(src);
6243
6244         if ((user) && (u))
6245         {
6246                 WriteTo(user, u, "KILL %s :%s!%s!%s!%s (%s)", u->nick, source->name, ServerName, user->dhost,user->nick,reason);
6247                 WriteOpers("*** Remote kill from %s by %s: %s!%s@%s (%s)",source->name,user->nick,u->nick,u->ident,u->host,reason);
6248                 snprintf(kreason,MAXBUF,"[%s] Killed (%s (%s))",source->name,user->nick,reason);
6249                 kill_link(u,kreason);
6250         }
6251 }
6252
6253 void handle_Q(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6254 {
6255         char* nick = strtok(params," :");
6256         char* reason = strtok(NULL,"\r\n");
6257         reason++;
6258
6259         userrec* user = Find(nick);
6260
6261         if (user)
6262         {
6263                 if (strlen(reason)>MAXQUIT)
6264                 {
6265                         reason[MAXQUIT-1] = '\0';
6266                 }
6267
6268
6269                 WriteCommonExcept(user,"QUIT :%s",reason);
6270
6271                 user_hash::iterator iter = clientlist.find(user->nick);
6272
6273                 if (iter != clientlist.end())
6274                 {
6275                         log(DEBUG,"deleting user hash value %d",iter->second);
6276                         if ((iter->second) && (user->registered == 7)) {
6277                                 delete iter->second;
6278                         }
6279                         clientlist.erase(iter);
6280                 }
6281
6282                 purge_empty_chans();
6283         }
6284 }
6285
6286 void handle_n(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6287 {
6288         char* oldnick = strtok(params," ");
6289         char* newnick = strtok(NULL," ");
6290
6291         userrec* user = Find(oldnick);
6292
6293         if (user)
6294         {
6295                 WriteCommon(user,"NICK %s",newnick);
6296                 user = ReHashNick(user->nick, newnick);
6297                 if (!user) return;
6298                 if (!user->nick) return;
6299                 strncpy(user->nick, newnick,NICKMAX);
6300                 log(DEBUG,"new nick set: %s",user->nick);
6301         }
6302 }
6303
6304 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6305 void handle_k(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6306 {
6307         char* src = strtok(params," ");
6308         char* dest = strtok(NULL," ");
6309         char* channel = strtok(NULL," :");
6310         char* reason = strtok(NULL,"\r\n");
6311         reason++;
6312         userrec* s = Find(src);
6313         userrec* d = Find(dest);
6314         chanrec* c = FindChan(channel);
6315         if ((s) && (d) && (c))
6316         {
6317                 kick_channel(s,d,c,reason);
6318         }
6319 }
6320
6321 void handle_AT(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6322 {
6323         char* who = strtok(params," :");
6324         char* text = strtok(NULL,"\r\n");
6325         text++;
6326         userrec* s = Find(who);
6327         if (s)
6328         {
6329                 WriteWallOps(s,true,text);
6330         }
6331 }
6332
6333
6334 void handle_N(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6335 {
6336         char* tm = strtok(params," ");
6337         char* nick = strtok(NULL," ");
6338         char* host = strtok(NULL," ");
6339         char* dhost = strtok(NULL," ");
6340         char* ident = strtok(NULL," ");
6341         char* modes = strtok(NULL," ");
6342         char* server = strtok(NULL," :");
6343         char* gecos = strtok(NULL,"\r\n");
6344         gecos++;
6345         modes++;
6346         time_t TS = atoi(tm);
6347         user_hash::iterator iter = clientlist.find(nick);
6348         if (iter != clientlist.end())
6349         {
6350                 // nick collision
6351                 WriteOpers("Nickname collision: %s@%s != %s@%s",nick,server,iter->second->nick,iter->second->server);
6352                 char str[MAXBUF];
6353                 snprintf(str,MAXBUF,"Killed (Nick Collision (%s@%s < %s@%s))",nick,server,iter->second->nick,iter->second->server);
6354                 WriteServ(iter->second->fd, "KILL %s :%s",iter->second->nick,str);
6355                 kill_link(iter->second,str);
6356         }
6357         clientlist[nick] = new userrec();
6358         // remote users have an fd of -1. This is so that our Write abstraction
6359         // routines know to route any messages to this record away to whatever server
6360         // theyre on.
6361         clientlist[nick]->fd = -1;
6362         strncpy(clientlist[nick]->nick, nick,NICKMAX);
6363         strncpy(clientlist[nick]->host, host,160);
6364         strncpy(clientlist[nick]->dhost, dhost,160);
6365         strncpy(clientlist[nick]->server, server,256);
6366         strncpy(clientlist[nick]->ident, ident,10); // +1 char to compensate for tilde
6367         strncpy(clientlist[nick]->fullname, gecos,128);
6368         clientlist[nick]->signon = TS;
6369         clientlist[nick]->nping = 0; // this is ignored for a remote user anyway.
6370         clientlist[nick]->lastping = 1;
6371         clientlist[nick]->port = 0; // so is this...
6372         clientlist[nick]->registered = 7; // this however we need to set for them to receive messages and appear online
6373         clientlist[nick]->idle_lastmsg = time(NULL); // this is unrealiable and wont actually be used locally
6374         for (int i = 0; i < MAXCHANS; i++)
6375         {
6376                 clientlist[nick]->chans[i].channel = NULL;
6377                 clientlist[nick]->chans[i].uc_modes = 0;
6378         }
6379 }
6380
6381 void handle_F(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6382 {
6383         long tdiff = time(NULL) - atoi(params);
6384         if (tdiff)
6385                 WriteOpers("TS split for %s -> %s: %d",source->name,reply->name,tdiff);
6386 }
6387
6388 void handle_a(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6389 {
6390         char* nick = strtok(params," :");
6391         char* gecos = strtok(NULL,"\r\n");
6392
6393         userrec* user = Find(nick);
6394
6395         if (user)
6396                 strncpy(user->fullname,gecos,MAXBUF);
6397 }
6398
6399 void handle_b(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6400 {
6401         char* nick = strtok(params," :");
6402         char* host = strtok(NULL,"\r\n");
6403
6404         userrec* user = Find(nick);
6405
6406         if (user)
6407                 strncpy(user->dhost,host,160);
6408 }
6409
6410 void handle_plus(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6411 {
6412         // %s %s %d %d
6413         // + test3.chatspike.net 7010 -2016508415
6414         char* servername = strtok(params," ");
6415         char* ipaddr = strtok(NULL," ");
6416         char* ipport = strtok(NULL," ");
6417         char* cookie = strtok(NULL," ");
6418         log(DEBUG,"*** Connecting back to %s:%d",ipaddr,atoi(ipport));
6419
6420
6421         bool conn_already = false;
6422         for (int i = 0; i < 32; i++)
6423         {
6424                 if (me[i] != NULL)
6425                 {
6426                         for (int j = 0; j < me[i]->connectors.size(); j++)
6427                         {
6428                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),servername))
6429                                 {
6430                                         if (me[i]->connectors[j].GetServerPort() == atoi(ipport))
6431                                         {
6432                                                 log(DEBUG,"Already got a connection to %s:%d, ignoring +",ipaddr,atoi(ipport));
6433                                                 conn_already = true;
6434                                         }
6435                                 }
6436                         }
6437                 }
6438         }
6439         if (!conn_already)
6440                 me[defaultRoute]->MeshCookie(ipaddr,atoi(ipport),atoi(cookie),servername);
6441 }
6442
6443 void handle_R(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6444 {
6445         char* server = strtok(params," ");
6446         char* data = strtok(NULL,"\r\n");
6447         log(DEBUG,"Forwarded packet '%s' to '%s'",data,server);
6448         NetSendToOne(server,data);
6449 }
6450
6451 void handle_J(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6452 {
6453         // IMPORTANT NOTE
6454         // The J token currently has no timestamp - this needs looking at
6455         // because it will allow splitriding.
6456         char* nick = strtok(params," ");
6457         char* channel = strtok(NULL," ");
6458         userrec* user = Find(nick);
6459         while (channel)
6460         {
6461                 if ((user != NULL) && (strcmp(channel,"")))
6462                 {
6463                         char privilage = '\0';
6464                         if (channel[0] != '#')
6465                         {
6466                                 privilage = channel[0];
6467                                 channel++;
6468                         }
6469                         add_channel(user,channel,"",true);
6470
6471                         // now work out the privilages they should have on each channel
6472                         // and send the appropriate servermodes.
6473                         for (int i = 0; i != MAXCHANS; i++)
6474                         {
6475                                 if (user->chans[i].channel)
6476                                 {
6477                                         if (!strcasecmp(user->chans[i].channel->name,channel))
6478                                         {
6479                                                 if (privilage == '@')
6480                                                 {
6481                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_OP;
6482                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +o %s",channel,user->nick);
6483                                                 }
6484                                                 if (privilage == '%')
6485                                                 {
6486                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_HOP;
6487                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +h %s",channel,user->nick);
6488                                                 }
6489                                                 if (privilage == '+')
6490                                                 {
6491                                                         user->chans[i].uc_modes = user->chans[i].uc_modes | UCMODE_VOICE;
6492                                                         WriteChannelLocal(user->chans[i].channel, NULL, "MODE %s +v %s",channel,user->nick);
6493                                                 }
6494                                         }
6495                                 }
6496                         }
6497
6498                 }
6499                 channel = strtok(NULL," ");
6500         }
6501 }
6502
6503 void NetSendMyRoutingTable()
6504 {
6505         // send out a line saying what is reachable to us.
6506         // E.g. if A is linked to B C and D, send out:
6507         // $ A B C D
6508         // if its only linked to B and D send out:
6509         // $ A B D
6510         // if it has no links, dont even send out the line at all.
6511         char buffer[MAXBUF];
6512         sprintf(buffer,"$ %s",ServerName);
6513         bool sendit = false;
6514         for (int i = 0; i < 32; i++)
6515         {
6516                 if (me[i] != NULL)
6517                 {
6518                         for (int j = 0; j < me[i]->connectors.size(); j++)
6519                         {
6520                                 if (me[i]->connectors[j].GetState() != STATE_DISCONNECTED)
6521                                 {
6522                                         strncat(buffer," ",MAXBUF);
6523                                         strncat(buffer,me[i]->connectors[j].GetServerName().c_str(),MAXBUF);
6524                                         sendit = true;
6525                                 }
6526                         }
6527                 }
6528         }
6529         if (sendit)
6530                 NetSendToAll(buffer);
6531 }
6532
6533 void handle_dollar(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6534 {
6535         log(DEBUG,"Storing routing table...");
6536         char* sourceserver = strtok(params," ");
6537         char* server = strtok(NULL," ");
6538         for (int i = 0; i < 32; i++)
6539         {
6540                 if (me[i] != NULL)
6541                 {
6542                         for (int j = 0; j < me[i]->connectors.size(); j++)
6543                         {
6544                                 if (!strcasecmp(me[i]->connectors[j].GetServerName().c_str(),sourceserver))
6545                                 {
6546                                         me[i]->connectors[j].routes.clear();
6547                                         log(DEBUG,"Found entry for source server.");
6548                                         while (server)
6549                                         {
6550                                                 // store each route
6551                                                 me[i]->connectors[j].routes.push_back(server);
6552                                                 log(DEBUG,"*** Stored route: %s -> %s -> %s",ServerName,sourceserver,server);
6553                                                 server = strtok(NULL," ");
6554                                         }
6555                                         return;
6556                                 }
6557                         }
6558                 }
6559         }
6560         log(DEBUG,"Warning! routing table received from nonexistent server!");
6561 }
6562
6563
6564 void DoSplit(const char* params)
6565 {
6566         bool go_again = true;
6567         while (go_again)
6568         {
6569                 go_again = false;
6570                 for (int i = 0; i < 32; i++)
6571                 {
6572                         if (me[i] != NULL)
6573                         {
6574                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6575                                 {
6576                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6577                                         {
6578                                                 j->routes.clear();
6579                                                 j->CloseConnection();
6580                                                 me[i]->connectors.erase(j);
6581                                                 go_again = true;
6582                                                 break;
6583                                         }
6584                                 }
6585                         }
6586                 }
6587         }
6588         log(DEBUG,"Removed server. Will remove clients...");
6589         // iterate through the userlist and remove all users on this server.
6590         // because we're dealing with a mesh, we dont have to deal with anything
6591         // "down-route" from this server (nice huh)
6592         go_again = true;
6593         char reason[MAXBUF];
6594         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6595         while (go_again)
6596         {
6597                 go_again = false;
6598                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6599                 {
6600                         if (!strcasecmp(u->second->server,params))
6601                         {
6602                                 kill_link(u->second,reason);
6603                                 go_again = true;
6604                                 break;
6605                         }
6606                 }
6607         }
6608 }
6609
6610 void handle_amp(char token,char* params,serverrec* source,serverrec* reply, char* udp_host)
6611 {
6612         log(DEBUG,"Netsplit! %s split from mesh, removing!",params);
6613         bool go_again = true;
6614         while (go_again)
6615         {
6616                 go_again = false;
6617                 for (int i = 0; i < 32; i++)
6618                 {
6619                         if (me[i] != NULL)
6620                         {
6621                                 for (vector<ircd_connector>::iterator j = me[i]->connectors.begin(); j != me[i]->connectors.end(); j++)
6622                                 {
6623                                         if (!strcasecmp(j->GetServerName().c_str(),params))
6624                                         {
6625                                                 j->routes.clear();
6626                                                 j->CloseConnection();
6627                                                 me[i]->connectors.erase(j);
6628                                                 go_again = true;
6629                                                 break;
6630                                         }
6631                                 }
6632                         }
6633                 }
6634         }
6635         log(DEBUG,"Removed server. Will remove clients...");
6636         // iterate through the userlist and remove all users on this server.
6637         // because we're dealing with a mesh, we dont have to deal with anything
6638         // "down-route" from this server (nice huh)
6639         go_again = true;
6640         char reason[MAXBUF];
6641         snprintf(reason,MAXBUF,"%s %s",ServerName,params);
6642         while (go_again)
6643         {
6644                 go_again = false;
6645                 for (user_hash::const_iterator u = clientlist.begin(); u != clientlist.end(); u++)
6646                 {
6647                         if (!strcasecmp(u->second->server,params))
6648                         {
6649                                 kill_link(u->second,reason);
6650                                 go_again = true;
6651                                 break;
6652                         }
6653                 }
6654         }
6655 }
6656
6657
6658 void process_restricted_commands(char token,char* params,serverrec* source,serverrec* reply, char* udp_host,char* ipaddr,int port)
6659 {
6660         long authcookie = rand()*rand();
6661         char buffer[MAXBUF];
6662
6663         switch(token)
6664         {
6665                 // Y <TS>
6666                 // start netburst
6667                 case 'Y':
6668                         nb_start = time(NULL);
6669                         WriteOpers("Server %s is starting netburst.",udp_host);
6670                 break;
6671                 // ~
6672                 // Store authcookie
6673                 // once stored, this authcookie permits other servers to log in
6674                 // without user or password, using it.
6675                 case '~':
6676                         auth_cookies.push_back(atoi(params));
6677                         log(DEBUG,"*** Stored auth cookie, will permit servers with auth-cookie %d",atoi(params));
6678                 break;
6679                 // connect back to a server using an authcookie
6680                 case '+':
6681                         handle_plus(token,params,source,reply,udp_host);
6682                 break;
6683                 // routing table
6684                 case '$':
6685                         handle_dollar(token,params,source,reply,udp_host);
6686                 break;
6687                 // node unreachable - we cant route to a server, sooooo we slit it off.
6688                 // servers can generate these for themselves for an squit.
6689                 case '&':
6690                         handle_amp(token,params,source,reply,udp_host);
6691                 break;
6692                 // R <server> <data>
6693                 // redirect token, send all of <data> along to the given
6694                 // server as this server has been found to still have a route to it
6695                 case 'R':
6696                         handle_R(token,params,source,reply,udp_host);
6697                 break;
6698                 // ?
6699                 // ping
6700                 case '?':
6701                         reply->SendPacket("!",udp_host);
6702                 break;
6703                 // ?
6704                 // pong
6705                 case '!':
6706                 break;
6707                 // *
6708                 // no operation
6709                 case '*':
6710                 break;
6711                 // N <TS> <NICK> <HOST> <DHOST> <IDENT> <MODES> <SERVER> :<GECOS>
6712                 // introduce remote client
6713                 case 'N':
6714                         handle_N(token,params,source,reply,udp_host);
6715                 break;
6716                 // a <NICK> :<GECOS>
6717                 // change GECOS (SETNAME)
6718                 case 'a':
6719                         handle_a(token,params,source,reply,udp_host);
6720                 break;
6721                 // b <NICK> :<HOST>
6722                 // change displayed host (SETHOST)
6723                 case 'b':
6724                         handle_b(token,params,source,reply,udp_host);
6725                 break;
6726                 // t <NICK> <CHANNEL> :<TOPIC>
6727                 // change a channel topic
6728                 case 't':
6729                         handle_t(token,params,source,reply,udp_host);
6730                 break;
6731                 // i <NICK> <CHANNEL>
6732                 // invite a user to a channel
6733                 case 'i':
6734                         handle_i(token,params,source,reply,udp_host);
6735                 break;
6736                 // k <SOURCE> <DEST> <CHANNEL> :<REASON>
6737                 // kick a user from a channel
6738                 case 'k':
6739                         handle_k(token,params,source,reply,udp_host);
6740                 break;
6741                 // n <NICK> <NEWNICK>
6742                 // change nickname of client -- a server should only be able to
6743                 // change the nicknames of clients that reside on it unless
6744                 // they are ulined.
6745                 case 'n':
6746                         handle_n(token,params,source,reply,udp_host);
6747                 break;
6748                 // J <NICK> <CHANLIST>
6749                 // Join user to channel list, merge channel permissions
6750                 case 'J':
6751                         handle_J(token,params,source,reply,udp_host);
6752                 break;
6753                 // T <TS> <CHANNEL> <TOPICSETTER> :<TOPIC>
6754                 // change channel topic (netburst only)
6755                 case 'T':
6756                         handle_T(token,params,source,reply,udp_host);
6757                 break;
6758                 // M <TARGET> <MODES> [MODE-PARAMETERS]
6759                 // Server setting modes on an object
6760                 case 'M':
6761                         handle_M(token,params,source,reply,udp_host);
6762                 break;
6763                 // m <SOURCE> <TARGET> <MODES> [MODE-PARAMETERS]
6764                 // User setting modes on an object
6765                 case 'm':
6766                         handle_m(token,params,source,reply,udp_host);
6767                 break;
6768                 // P <SOURCE> <TARGET> :<TEXT>
6769                 // Send a private/channel message
6770                 case 'P':
6771                         handle_P(token,params,source,reply,udp_host);
6772                 break;
6773                 // V <SOURCE> <TARGET> :<TEXT>
6774                 // Send a private/channel notice
6775                 case 'V':
6776                         handle_V(token,params,source,reply,udp_host);
6777                 break;
6778                 // L <SOURCE> <CHANNEL> :<REASON>
6779                 // User parting a channel
6780                 case 'L':
6781                         handle_L(token,params,source,reply,udp_host);
6782                 break;
6783                 // Q <SOURCE> :<REASON>
6784                 // user quitting
6785                 case 'Q':
6786                         handle_Q(token,params,source,reply,udp_host);
6787                 break;
6788                 // K <SOURCE> <DEST> :<REASON>
6789                 // remote kill
6790                 case 'K':
6791                         handle_K(token,params,source,reply,udp_host);
6792                 break;
6793                 // @ <SOURCE> :<TEXT>
6794                 // wallops
6795                 case '@':
6796                         handle_AT(token,params,source,reply,udp_host);
6797                 break;
6798                 // F <TS>
6799                 // end netburst
6800                 case 'F':
6801                         WriteOpers("Server %s has completed netburst. (%d secs)",udp_host,time(NULL)-nb_start);
6802                         handle_F(token,params,source,reply,udp_host);
6803                         nb_start = 0;
6804                         // now broadcast this new servers address out to all servers that are linked to us,
6805                         // except the newcomer. They'll all attempt to connect back to it.
6806                         snprintf(buffer,MAXBUF,"~ %d",authcookie);
6807                         source->SendPacket(buffer,udp_host);
6808                         // tell all the other servers to use this authcookie to connect back again
6809                         // got '+ test3.chatspike.net 7010 -2016508415' from test.chatspike.net
6810                         snprintf(buffer,MAXBUF,"+ %s %s %d %d",udp_host,ipaddr,port,authcookie);
6811                         NetSendToAllExcept(udp_host,buffer);
6812                 break;
6813                 // X <reserved>
6814                 // Send netburst now
6815                 case 'X':
6816                         WriteOpers("Sending my netburst to %s",udp_host);
6817                         DoSync(source,udp_host);
6818                         WriteOpers("Send of netburst to %s completed",udp_host);
6819                         NetSendMyRoutingTable();
6820                 break;
6821                 // anything else
6822                 default:
6823                         WriteOpers("WARNING! Unknown datagram type '%c'",token);
6824                 break;
6825         }
6826 }
6827
6828
6829 void handle_link_packet(char* udp_msg, char* udp_host, serverrec *serv)
6830 {
6831         char response[10240];
6832         char token = udp_msg[0];
6833         char* params = udp_msg + 2;
6834         char finalparam[1024];
6835         strcpy(finalparam," :xxxx");
6836         if (strstr(params," :")) {
6837                 strncpy(finalparam,strstr(params," :"),1024);
6838         }
6839         if (token == '-') {
6840                 char* cookie = strtok(params," ");
6841                 char* servername = strtok(NULL," ");
6842                 char* serverdesc = finalparam+2;
6843
6844                 WriteOpers("AuthCookie CONNECT from %s (%s)",servername,udp_host);
6845
6846                 for (int u = 0; u < auth_cookies.size(); u++)
6847                 {
6848                         if (auth_cookies[u] == atoi(cookie))
6849                         {
6850                                 WriteOpers("Allowed cookie from %s, is now part of the mesh",servername);
6851
6852
6853                                 for (int j = 0; j < 32; j++)
6854                                 {
6855                                         if (me[j] != NULL)
6856                                         {
6857                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6858                                                 {
6859                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6860                                                         {
6861                                                                 me[j]->connectors[k].SetServerName(servername);
6862                                                                 NetSendMyRoutingTable();
6863                                                                 return;
6864                                                         }
6865                                                 }
6866                                         }
6867                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right now! Possible intrusion attempt!",udp_host);
6868                                         return;
6869                                 }
6870
6871
6872                                 return;
6873                         }
6874                 }
6875                 // bad cookie, bad bad! go sit in the corner!
6876                 WriteOpers("Bad cookie from %s!",servername);
6877                 return;
6878         }
6879         else
6880         if (token == 'S') {
6881                 // S test.chatspike.net password portn :ChatSpike InspIRCd test server
6882                 char* servername = strtok(params," ");
6883                 char* password = strtok(NULL," ");
6884                 char* myport = strtok(NULL," ");
6885                 char* serverdesc = finalparam+2;
6886                 WriteOpers("CONNECT from %s (%s) (their port: %d)",servername,udp_host,atoi(myport));
6887
6888                 for (int j = 0; j < serv->connectors.size(); j++)
6889                 {
6890                         if (!strcasecmp(serv->connectors[j].GetServerName().c_str(),udp_host))
6891                         {
6892                                 serv->connectors[j].SetServerName(servername);
6893                                 serv->connectors[j].SetServerPort(atoi(myport));
6894                         }
6895                 }
6896
6897
6898                 char Link_ServerName[1024];
6899                 char Link_IPAddr[1024];
6900                 char Link_Port[1024];
6901                 char Link_Pass[1024];
6902                 char Link_SendPass[1024];
6903                 int LinkPort = 0;
6904
6905                 // search for a corresponding <link> block in the config files
6906                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6907                 {
6908                         ConfValue("link","name",i,Link_ServerName,&config_f);
6909                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6910                         ConfValue("link","port",i,Link_Port,&config_f);
6911                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6912                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6913                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6914                         LinkPort = atoi(Link_Port);
6915                         if (!strcasecmp(Link_ServerName,servername))
6916                         {
6917                                 // we have a matching link line -
6918                                 // send a 'diminutive' server message back...
6919                                 snprintf(response,10240,"s %s %s :%s",ServerName,Link_SendPass,ServerDesc);
6920                                 serv->SendPacket(response,servername);
6921                                 return;
6922                         }
6923                 }
6924                 char buffer[MAXBUF];
6925                 sprintf(buffer,"E :Access is denied (no matching link block)");
6926                 serv->SendPacket(buffer,udp_host);
6927                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6928                 return;
6929         }
6930         else
6931         if (token == 's') {
6932                 // S test.chatspike.net password :ChatSpike InspIRCd test server
6933                 char* servername = strtok(params," ");
6934                 char* password = strtok(NULL," ");
6935                 char* serverdesc = finalparam+2;
6936
6937                 // TODO: we should do a check here to ensure that this server is one we recently initiated a
6938                 // link with, and didnt hear an 's' or 'E' back from yet (these are the only two valid responses
6939                 // to an 'S' command. If we didn't recently send an 'S' to this server, theyre trying to spoof
6940                 // a connect, so put out an oper alert!
6941
6942
6943
6944
6945                 // for now, just accept all, we'll fix that later.
6946                 WriteOpers("%s accepted our link credentials ",servername);
6947
6948                 char Link_ServerName[1024];
6949                 char Link_IPAddr[1024];
6950                 char Link_Port[1024];
6951                 char Link_Pass[1024];
6952                 char Link_SendPass[1024];
6953                 int LinkPort = 0;
6954
6955                 // search for a corresponding <link> block in the config files
6956                 for (int i = 0; i < ConfValueEnum("link",&config_f); i++)
6957                 {
6958                         ConfValue("link","name",i,Link_ServerName,&config_f);
6959                         ConfValue("link","ipaddr",i,Link_IPAddr,&config_f);
6960                         ConfValue("link","port",i,Link_Port,&config_f);
6961                         ConfValue("link","recvpass",i,Link_Pass,&config_f);
6962                         ConfValue("link","sendpass",i,Link_SendPass,&config_f);
6963                         log(DEBUG,"(%d) Comparing against name='%s', ipaddr='%s', port='%s', recvpass='%s'",i,Link_ServerName,Link_IPAddr,Link_Port,Link_Pass);
6964                         LinkPort = atoi(Link_Port);
6965                         if (!strcasecmp(Link_ServerName,servername))
6966                         {
6967                                 // matching link at this end too, we're all done!
6968                                 // at this point we must begin key exchange and insert this
6969                                 // server into our 'active' table.
6970                                 for (int j = 0; j < 32; j++)
6971                                 {
6972                                         if (me[j] != NULL)
6973                                         {
6974                                                 for (int k = 0; k < me[j]->connectors.size(); k++)
6975                                                 {
6976                                                         if (!strcasecmp(me[j]->connectors[k].GetServerName().c_str(),udp_host))
6977                                                         {
6978                                                                 char buffer[MAXBUF];
6979                                                                 sprintf(buffer,"X 0");
6980                                                                 serv->SendPacket(buffer,udp_host);
6981                                                                 DoSync(me[j],udp_host);
6982                                                                 NetSendMyRoutingTable();
6983                                                                 return;
6984                                                         }
6985                                                 }
6986                                         }
6987                                         WriteOpers("\2WARNING!\2 %s sent us an authentication packet but we are not authenticating with this server right noe! Possible intrusion attempt!",udp_host);
6988                                         return;
6989                                 }
6990                         }
6991                         else {
6992                                 log(DEBUG,"Server names '%s' and '%s' don't match",Link_ServerName,servername);
6993                         }
6994                 }
6995                 char buffer[MAXBUF];
6996                 sprintf(buffer,"E :Access is denied (no matching link block)");
6997                 serv->SendPacket(buffer,udp_host);
6998                 WriteOpers("CONNECT from %s denied, no matching link block",servername);
6999                 return;
7000         }
7001         else
7002         if (token == 'E') {
7003                 char* error_message = finalparam+2;
7004                 WriteOpers("ERROR from %s: %s",udp_host,error_message);
7005                 // remove this server from any lists
7006                 return;
7007         }
7008         else {
7009
7010                 serverrec* source_server = NULL;
7011
7012                 for (int j = 0; j < 32; j++)
7013                 {
7014                         if (me[j] != NULL)
7015                         {
7016                                 for (int x = 0; x < me[j]->connectors.size(); x++)
7017                                 {
7018                                         log(DEBUG,"Servers are: '%s' '%s'",udp_host,me[j]->connectors[x].GetServerName().c_str());
7019                                         if (!strcasecmp(me[j]->connectors[x].GetServerName().c_str(),udp_host))
7020                                         {
7021                                                 log(DEBUG,"match! process restricted stuff here");
7022                                                 // found a valid ircd_connector.
7023                                                 // TODO: Fix this so it only lets servers in that are in the
7024                                                 // STATE_CONNECTED state!!!
7025                                                 process_restricted_commands(token,params,me[j],serv,udp_host,me[j]->connectors[x].GetServerIP(),me[j]->connectors[x].GetServerPort());
7026                                                 return;
7027                                         }
7028                                 }
7029                         }
7030                 }
7031
7032                 log(DEBUG,"Unrecognised token or unauthenticated host in datagram from %s: %c",udp_host,token);
7033         }
7034 }
7035
7036 int reap_counter = 0;
7037
7038 int InspIRCd(void)
7039 {
7040         struct sockaddr_in client, server;
7041         char addrs[MAXBUF][255];
7042         int openSockfd[MAXSOCKS], incomingSockfd, result = TRUE;
7043         socklen_t length;
7044         int count = 0, scanDetectTrigger = TRUE, showBanner = FALSE;
7045         int selectResult = 0, selectResult2 = 0;
7046         char *temp, configToken[MAXBUF], stuff[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
7047         char resolvedHost[MAXBUF];
7048         fd_set selectFds;
7049         struct timeval tv;
7050
7051         log_file = fopen("ircd.log","a+");
7052         if (!log_file)
7053         {
7054                 printf("ERROR: Could not write to logfile ircd.log, bailing!\n\n");
7055                 Exit(ERROR);
7056         }
7057
7058         log(DEBUG,"InspIRCd: startup: begin");
7059         log(DEBUG,"$Id$");
7060         if (geteuid() == 0)
7061         {
7062                 printf("WARNING!!! You are running an irc server as ROOT!!! DO NOT DO THIS!!!\n\n");
7063                 Exit(ERROR);
7064                 log(DEBUG,"InspIRCd: startup: not starting with UID 0!");
7065         }
7066         SetupCommandTable();
7067         log(DEBUG,"InspIRCd: startup: default command table set up");
7068
7069         ReadConfig();
7070         if (strcmp(DieValue,""))
7071         {
7072                 printf("WARNING: %s\n\n",DieValue);
7073                 exit(0);
7074         }
7075         log(DEBUG,"InspIRCd: startup: read config");
7076
7077         int count2 = 0, count3 = 0;
7078
7079         for (count = 0; count < ConfValueEnum("bind",&config_f); count++)
7080         {
7081                 ConfValue("bind","port",count,configToken,&config_f);
7082                 ConfValue("bind","address",count,Addr,&config_f);
7083                 ConfValue("bind","type",count,Type,&config_f);
7084                 if (!strcmp(Type,"servers"))
7085                 {
7086                         char Default[MAXBUF];
7087                         strcpy(Default,"no");
7088                         ConfValue("bind","default",count,Default,&config_f);
7089                         if (strchr(Default,'y'))
7090                         {
7091                                 defaultRoute = count3;
7092                                 log(DEBUG,"InspIRCd: startup: binding '%s:%s' is default server route",Addr,configToken);
7093                         }
7094                         me[count3] = new serverrec(ServerName,100L,false);
7095                         me[count3]->CreateListener(Addr,atoi(configToken));
7096                         count3++;
7097                 }
7098                 else
7099                 {
7100                         ports[count2] = atoi(configToken);
7101                         strcpy(addrs[count2],Addr);
7102                         count2++;
7103                 }
7104                 log(DEBUG,"InspIRCd: startup: read binding %s:%s [%s] from config",Addr,configToken, Type);
7105         }
7106         portCount = count2;
7107         UDPportCount = count3;
7108
7109         log(DEBUG,"InspIRCd: startup: read %d total client ports and %d total server ports",portCount,UDPportCount);
7110
7111         log(DEBUG,"InspIRCd: startup: InspIRCd is now running!");
7112
7113         printf("\n");
7114
7115         /* BugFix By Craig! :p */
7116         count = 0;
7117         for (count2 = 0; count2 < ConfValueEnum("module",&config_f); count2++)
7118         {
7119                 char modfile[MAXBUF];
7120                 ConfValue("module","name",count2,configToken,&config_f);
7121                 sprintf(modfile,"%s/%s",MOD_PATH,configToken,&config_f);
7122                 printf("Loading module... \033[1;37m%s\033[0;37m\n",modfile);
7123                 log(DEBUG,"InspIRCd: startup: Loading module: %s",modfile);
7124                 /* If The File Doesnt exist, Trying to load it
7125                  * Will Segfault the IRCd.. So, check to see if
7126                  * it Exists, Before Proceeding. */
7127                 if (FileExists(modfile))
7128                 {
7129                         factory[count] = new ircd_module(modfile);
7130                         if (factory[count]->LastError())
7131                         {
7132                                 log(DEBUG,"Unable to load %s: %s",modfile,factory[count]->LastError());
7133                                 sprintf("Unable to load %s: %s\nExiting...\n",modfile,factory[count]->LastError());
7134                                 Exit(ERROR);
7135                         }
7136                         if (factory[count]->factory)
7137                         {
7138                                 modules[count] = factory[count]->factory->CreateModule();
7139                                 /* save the module and the module's classfactory, if
7140                                  * this isnt done, random crashes can occur :/ */
7141                                 module_names.push_back(modfile);
7142                         }
7143                         else
7144                         {
7145                                 log(DEBUG,"Unable to load %s",modfile);
7146                                 sprintf("Unable to load %s\nExiting...\n",modfile);
7147                                 Exit(ERROR);
7148                         }
7149                         /* Increase the Count */
7150                         count++;
7151                 }
7152                 else
7153                 {
7154                         log(DEBUG,"InspIRCd: startup: Module Not Found %s",modfile);
7155                         printf("Module Not Found: \033[1;37m%s\033[0;37m, Skipping\n",modfile);
7156                 }
7157         }
7158         MODCOUNT = count - 1;
7159         log(DEBUG,"Total loaded modules: %d",MODCOUNT+1);
7160
7161         printf("\nInspIRCd is now running!\n");
7162
7163         startup_time = time(NULL);
7164
7165         if (nofork)
7166         {
7167                 log(VERBOSE,"Not forking as -nofork was specified");
7168         }
7169         else
7170         {
7171                 if (DaemonSeed() == ERROR)
7172                 {
7173                         log(DEBUG,"InspIRCd: startup: can't daemonise");
7174                         printf("ERROR: could not go into daemon mode. Shutting down.\n");
7175                         Exit(ERROR);
7176                 }
7177         }
7178
7179
7180         /* setup select call */
7181         FD_ZERO(&selectFds);
7182         log(DEBUG,"InspIRCd: startup: zero selects");
7183         log(VERBOSE,"InspIRCd: startup: portCount = %d", portCount);
7184
7185         for (count = 0; count < portCount; count++)
7186         {
7187                 if ((openSockfd[boundPortCount] = OpenTCPSocket()) == ERROR)
7188                 {
7189                         log(DEBUG,"InspIRCd: startup: bad fd %d",openSockfd[boundPortCount]);
7190                         return(ERROR);
7191                 }
7192                 if (BindSocket(openSockfd[boundPortCount],client,server,ports[count],addrs[count]) == ERROR)
7193                 {
7194                         log(DEBUG,"InspIRCd: startup: failed to bind port %d",ports[count]);
7195                 }
7196                 else    /* well we at least bound to one socket so we'll continue */
7197                 {
7198                         boundPortCount++;
7199                 }
7200         }
7201
7202         log(DEBUG,"InspIRCd: startup: total bound ports %d",boundPortCount);
7203
7204         /* if we didn't bind to anything then abort */
7205         if (boundPortCount == 0)
7206         {
7207                 log(DEBUG,"InspIRCd: startup: no ports bound, bailing!");
7208                 return (ERROR);
7209         }
7210
7211
7212         length = sizeof (client);
7213         char udp_msg[MAXBUF], udp_host[MAXBUF];
7214
7215         /* main loop, this never returns */
7216         for (;;)
7217         {
7218
7219                 fd_set sfd;
7220                 timeval tval;
7221                 FD_ZERO(&sfd);
7222
7223                 user_hash::iterator count2 = clientlist.begin();
7224
7225                 // *FIX* Instead of closing sockets in kill_link when they receive the ERROR :blah line, we should queue
7226                 // them in a list, then reap the list every second or so.
7227                 if (reap_counter>2500)
7228                 {
7229                         if (fd_reap.size() > 0)
7230                         {
7231                                 for( int n = 0; n < fd_reap.size(); n++)
7232                                 {
7233                                         Blocking(fd_reap[n]);
7234                                         close(fd_reap[n]);
7235                                         NonBlocking(fd_reap[n]);
7236                                 }
7237                         }
7238                         fd_reap.clear();
7239                         reap_counter=0;
7240                 }
7241                 reap_counter++;
7242
7243                 fd_set serverfds;
7244                 FD_ZERO(&serverfds);
7245                 timeval tvs;
7246
7247                 for (int x = 0; x != UDPportCount; x++)
7248                 {
7249                         FD_SET(me[x]->fd, &serverfds);
7250                 }
7251
7252                 tvs.tv_usec = 0;
7253                 tvs.tv_sec = 0;
7254
7255                 int servresult = select(32767, &serverfds, NULL, NULL, &tvs);
7256                 if (servresult > 0)
7257                 {
7258                         for (int x = 0; x != UDPportCount; x++)
7259                         {
7260                                 if (FD_ISSET (me[x]->fd, &serverfds))
7261                                 {
7262                                         char remotehost[MAXBUF],resolved[MAXBUF];
7263                                         length = sizeof (client);
7264                                         incomingSockfd = accept (me[x]->fd, (sockaddr *) &client, &length);
7265                                         strncpy(remotehost,(char *)inet_ntoa(client.sin_addr),MAXBUF);
7266                                         if(CleanAndResolve(resolved, remotehost) != TRUE)
7267                                         {
7268                                                 strncpy(resolved,remotehost,MAXBUF);
7269                                         }
7270                                         // add to this connections ircd_connector vector
7271                                         // *FIX* - we need the LOCAL port not the remote port in &client!
7272                                         me[x]->AddIncoming(incomingSockfd,resolved,me[x]->port);
7273                                 }
7274                         }
7275                 }
7276
7277                 for (int x = 0; x < UDPportCount; x++)
7278                 {
7279                         std::deque<std::string> msgs;
7280                         msgs.clear();
7281                         if (me[x]->RecvPacket(msgs, udp_host))
7282                         {
7283                                 for (int ctr = 0; ctr < msgs.size(); ctr++)
7284                                 {
7285                                         char udp_msg[MAXBUF];
7286                                         strncpy(udp_msg,msgs[ctr].c_str(),MAXBUF);
7287                                         if (strlen(udp_msg)<1)
7288                                                 {
7289                                                 log(DEBUG,"Invalid string from %s [route%d]",udp_host,x);
7290                                                 break;
7291                                         }
7292                                         // during a netburst, send all data to all other linked servers
7293                                         if ((nb_start>0) && (udp_msg[0] != 'Y') && (udp_msg[0] != 'X') && (udp_msg[0] != 'F'))
7294                                         {
7295                                                 NetSendToAllExcept(udp_host,udp_msg);
7296                                         }
7297                                         FOREACH_MOD OnPacketReceive(udp_msg);
7298                                         handle_link_packet(udp_msg, udp_host, me[x]);
7299                                 }
7300                                 goto label;
7301                         }
7302                 }
7303
7304
7305         while (count2 != clientlist.end())
7306         {
7307                 char data[10240];
7308                 tval.tv_usec = tval.tv_sec = 0;
7309                 FD_ZERO(&sfd);
7310                 int total_in_this_set = 0;
7311
7312                 user_hash::iterator xcount = count2;
7313                 user_hash::iterator endingiter = count2;
7314
7315                 if (!count2->second) break;
7316
7317                 if (count2->second)
7318                 if (count2->second->fd != 0)
7319                 {
7320                         // assemble up to 64 sockets into an fd_set
7321                         // to implement a pooling mechanism.
7322                         //
7323                         // This should be up to 64x faster than the
7324                         // old implementation.
7325                         while (total_in_this_set < 64)
7326                         {
7327                                 if (count2 != clientlist.end())
7328                                 {
7329                                         // we don't check the state of remote users.
7330                                         if (count2->second->fd > 0)
7331                                         {
7332                                                 FD_SET (count2->second->fd, &sfd);
7333
7334                                                 // registration timeout -- didnt send USER/NICK/HOST in the time specified in
7335                                                 // their connection class.
7336                                                 if ((time(NULL) > count2->second->timeout) && (count2->second->registered != 7))
7337                                                 {
7338                                                         log(DEBUG,"InspIRCd: registration timeout: %s",count2->second->nick);
7339                                                         kill_link(count2->second,"Registration timeout");
7340                                                         goto label;
7341                                                 }
7342                                                 if (((time(NULL)) > count2->second->nping) && (isnick(count2->second->nick)) && (count2->second->registered == 7))
7343                                                 {
7344                                                         if ((!count2->second->lastping) && (count2->second->registered == 7))
7345                                                         {
7346                                                                 log(DEBUG,"InspIRCd: ping timeout: %s",count2->second->nick);
7347                                                                 kill_link(count2->second,"Ping timeout");
7348                                                                 goto label;
7349                                                         }
7350                                                         Write(count2->second->fd,"PING :%s",ServerName);
7351                                                         log(DEBUG,"InspIRCd: pinging: %s",count2->second->nick);
7352                                                         count2->second->lastping = 0;
7353                                                         count2->second->nping = time(NULL)+120;
7354                                                 }
7355                                         }
7356                                         count2++;
7357                                         total_in_this_set++;
7358                                 }
7359                                 else break;
7360                         }
7361
7362                         endingiter = count2;
7363                         count2 = xcount; // roll back to where we were
7364
7365                         int v = 0;
7366
7367                         tval.tv_usec = 0;
7368                         tval.tv_sec = 0;
7369                         selectResult2 = select(65535, &sfd, NULL, NULL, &tval);
7370
7371                         // now loop through all of the items in this pool if any are waiting
7372                         //if (selectResult2 > 0)
7373                         for (user_hash::iterator count2a = xcount; count2a != endingiter; count2a++)
7374                         {
7375                                 result = EAGAIN;
7376                                 if ((count2a->second->fd != -1) && (FD_ISSET (count2a->second->fd, &sfd)))
7377                                 {
7378                                         log(DEBUG,"Reading fd %d",count2a->second->fd);
7379                                         memset(data, 0, 10240);
7380                                         result = read(count2a->second->fd, data, 10240);
7381
7382                                         if (result)
7383                                         {
7384                                                 log(DEBUG,"Read %d characters from socket",result);
7385                                                 userrec* current = count2a->second;
7386                                                 int currfd = current->fd;
7387                                                 char* l = strtok(data,"\n");
7388                                                 int floodlines = 0;
7389                                                 while (l)
7390                                                 {
7391                                                         floodlines++;
7392                                                         if ((floodlines > current->flood) && (current->flood != 0))
7393                                                         {
7394                                                                 log(DEFAULT,"Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7395                                                                 WriteOpers("*** Excess flood from: %s!%s@%s",current->nick,current->ident,current->host);
7396                                                                 kill_link(current,"Excess flood");
7397                                                                 goto label;
7398                                                         }
7399                                                         char sanitized[NetBufferSize];
7400                                                         memset(sanitized, 0, NetBufferSize);
7401                                                         int ptt = 0;
7402                                                         for (int pt = 0; pt < strlen(l); pt++)
7403                                                         {
7404                                                                 if (l[pt] != '\r')
7405                                                                 {
7406                                                                         sanitized[ptt++] = l[pt];
7407                                                                 }
7408                                                         }
7409                                                         sanitized[ptt] = '\0';
7410                                                         if (strlen(sanitized))
7411                                                         {
7412
7413
7414                                                                 // we're gonna re-scan to check if the nick is gone, after every
7415                                                                 // command - if it has, we're gonna bail
7416                                                                 bool find_again = false;
7417                                                                 process_buffer(sanitized,current);
7418
7419                                                                 // look for the user's record in case it's changed
7420                                                                 for (user_hash::iterator c2 = clientlist.begin(); c2 != clientlist.end(); c2++)
7421                                                                 {
7422                                                                         if (c2->second->fd == currfd)
7423                                                                         {
7424                                                                                 // found again, update pointer
7425                                                                                 current == c2->second;
7426                                                                                 find_again = true;
7427                                                                                 break;
7428                                                                         }
7429                                                                 }
7430                                                                 if (!find_again)
7431                                                                         goto label;
7432
7433                                                         }
7434                                                         l = strtok(NULL,"\n");
7435                                                 }
7436                                                 goto label;
7437                                         }
7438
7439                                         if ((result == -1) && (errno != EAGAIN) && (errno != EINTR))
7440                                         {
7441                                                 log(DEBUG,"killing: %s",count2a->second->nick);
7442                                                 kill_link(count2a->second,strerror(errno));
7443                                                 goto label;
7444                                         }
7445                                 }
7446                                 // result EAGAIN means nothing read
7447                                 if (result == EAGAIN)
7448                                 {
7449                                 }
7450                                 else
7451                                 if (result == 0)
7452                                 {
7453                                         if (count2->second)
7454                                         {
7455                                                 log(DEBUG,"InspIRCd: Exited: %s",count2a->second->nick);
7456                                                 kill_link(count2a->second,"Client exited");
7457                                                 // must bail here? kill_link removes the hash, corrupting the iterator
7458                                                 log(DEBUG,"Bailing from client exit");
7459                                                 goto label;
7460                                         }
7461                                 }
7462                                 else if (result > 0)
7463                                 {
7464                                 }
7465                         }
7466                 }
7467                 for (int q = 0; q < total_in_this_set; q++)
7468                 {
7469                         // there is no iterator += operator :(
7470                         //if (count2 != clientlist.end())
7471                         //{
7472                                 count2++;
7473                         //}
7474                 }
7475         }
7476
7477         // set up select call
7478         for (count = 0; count < boundPortCount; count++)
7479         {
7480                 FD_SET (openSockfd[count], &selectFds);
7481         }
7482
7483         tv.tv_usec = 1;
7484         selectResult = select(MAXSOCKS, &selectFds, NULL, NULL, &tv);
7485
7486         /* select is reporting a waiting socket. Poll them all to find out which */
7487         if (selectResult > 0)
7488         {
7489                 char target[MAXBUF], resolved[MAXBUF];
7490                 for (count = 0; count < boundPortCount; count++)
7491                 {
7492                         if (FD_ISSET (openSockfd[count], &selectFds))
7493                         {
7494                                 length = sizeof (client);
7495                                 incomingSockfd = accept (openSockfd[count], (struct sockaddr *) &client, &length);
7496
7497                                 address_cache::iterator iter = IP.find(client.sin_addr);
7498                                 bool iscached = false;
7499                                 if (iter == IP.end())
7500                                 {
7501                                         /* ip isn't in cache, add it */
7502                                         strncpy (target, (char *) inet_ntoa (client.sin_addr), MAXBUF);
7503                                         if(CleanAndResolve(resolved, target) != TRUE)
7504                                         {
7505                                                 strncpy(resolved,target,MAXBUF);
7506                                         }
7507                                         /* hostname now in 'target' */
7508                                         IP[client.sin_addr] = new string(resolved);
7509                                         /* hostname in cache */
7510                                 }
7511                                 else
7512                                 {
7513                                         /* found ip (cached) */
7514                                         strncpy(resolved, iter->second->c_str(), MAXBUF);
7515                                         iscached = true;
7516                                 }
7517
7518                                 if (incomingSockfd < 0)
7519                                 {
7520                                         WriteOpers("*** WARNING: Accept failed on port %d (%s)", ports[count],target);
7521                                         log(DEBUG,"InspIRCd: accept failed: %d",ports[count]);
7522                                 }
7523                                 else
7524                                 {
7525                                         AddClient(incomingSockfd, resolved, ports[count], iscached);
7526                                         log(DEBUG,"InspIRCd: adding client on port %d fd=%d",ports[count],incomingSockfd);
7527                                 }
7528                                 goto label;
7529                         }
7530                 }
7531         }
7532         label:
7533         if(0) {}; // "Label must be followed by a statement"... so i gave it one.
7534 }
7535 /* not reached */
7536 close (incomingSockfd);
7537 }
7538