src/mode.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 #include "inspircd.h"
  18 #include "inspircd_io.h"
  19 #include "inspircd_util.h"
  20 #include "inspircd_config.h"
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23 #include <sys/errno.h>
  24 #include <sys/ioctl.h>
  25 #include <sys/utsname.h>
  26 #include <cstdio>
  27 #include <time.h>
  28 #include <string>
  29 #ifdef GCC3
  30 #include <ext/hash_map>
  31 #else
  32 #include <hash_map>
  33 #endif
  34 #include <map>
  35 #include <sstream>
  36 #include <vector>
  37 #include <errno.h>
  38 #include <deque>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #include <sched.h>
  42 #include "connection.h"
  43 #include "users.h"
  44 #include "servers.h"
  45 #include "ctables.h"
  46 #include "globals.h"
  47 #include "modules.h"
  48 #include "dynamic.h"
  49 #include "wildcard.h"
  50 #include "message.h"
  51 #include "commands.h"
  52 #include "xline.h"
  53 #include "inspstring.h"
  54
  55 using namespace std;
  56
  57 extern int MODCOUNT;
  58 extern std::vector<Module*> modules;
  59 extern std::vector<ircd_module*> factory;
  60 extern std::vector<std::string> module_names;
  61
  62
  63 extern int LogLevel;
  64 extern char ServerName[MAXBUF];
  65 extern char Network[MAXBUF];
  66 extern char ServerDesc[MAXBUF];
  67 extern char AdminName[MAXBUF];
  68 extern char AdminEmail[MAXBUF];
  69 extern char AdminNick[MAXBUF];
  70 extern char diepass[MAXBUF];
  71 extern char restartpass[MAXBUF];
  72 extern char motd[MAXBUF];
  73 extern char rules[MAXBUF];
  74 extern char list[MAXBUF];
  75 extern char PrefixQuit[MAXBUF];
  76 extern char DieValue[MAXBUF];
  77
  78 extern bool AllowHalfop;
  79 extern bool AllowProtect;
  80 extern bool AllowFounder;
  81
  82
  83 char* give_ops(userrec *user,char *dest,chanrec *chan,int status)
  84 {
  85         userrec *d;
  86         int i;
  87
  88         if ((!user) || (!dest) || (!chan))
  89         {
  90                 log(DEFAULT,"*** BUG *** give_ops was given an invalid parameter");
  91                 return NULL;
  92         }
  93
  94         if (!isnick(dest))
  95         {
  96                 log(DEFAULT,"the target nickname given to give_ops was invalid");
  97                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
  98                 return NULL;
  99         }
 100         d = Find(dest);
 101         if (!d)
 102         {
 103                 log(DEFAULT,"the target nickname given to give_ops couldnt be found");
 104                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 105                 return NULL;
 106         }
 107         else
 108         {
 109
 110                 int MOD_RESULT = 0;
 111                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_OP));
 112
 113                 if (MOD_RESULT == ACR_DENY)
 114                         return NULL;
 115                 if (MOD_RESULT == ACR_DEFAULT)
 116                 {
 117                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 118                         {
 119                                 log(DEBUG,"%s cant give ops to %s because they nave status %d and needs %d",user->nick,dest,status,STATUS_OP);
 120                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 121                                 return NULL;
 122                         }
 123                 }
 124
 125
 126                 for (int i = 0; i != MAXCHANS; i++)
 127                 {
 128                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 129                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 130                         {
 131                         if (d->chans[i].uc_modes & UCMODE_OP)
 132                                 {
 133                                         /* mode already set on user, dont allow multiple */
 134                                         log(DEFAULT,"The target user given to give_ops was already opped on the channel");
 135                                         return NULL;
 136                                 }
 137                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_OP;
 138                                 log(DEBUG,"gave ops: %s %s",d->chans[i].channel->name,d->nick);
 139                                 return d->nick;
 140                         }
 141                 }
 142                 log(DEFAULT,"The target channel given to give_ops was not in the users mode list");
 143         }
 144         return NULL;
 145 }
 146
 147 char* give_hops(userrec *user,char *dest,chanrec *chan,int status)
 148 {
 149         userrec *d;
 150         int i;
 151
 152         if ((!user) || (!dest) || (!chan))
 153         {
 154                 log(DEFAULT,"*** BUG *** give_hops was given an invalid parameter");
 155                 return NULL;
 156         }
 157
 158         d = Find(dest);
 159         if (!isnick(dest))
 160         {
 161                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 162                 return NULL;
 163         }
 164         if (!d)
 165         {
 166                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 167                 return NULL;
 168         }
 169         else
 170         {
 171                 int MOD_RESULT = 0;
 172                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_HALFOP));
 173
 174                 if (MOD_RESULT == ACR_DENY)
 175                         return NULL;
 176                 if (MOD_RESULT == ACR_DEFAULT)
 177                 {
 178                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 179                         {
 180                                 WriteServ(user->fd,"482 %s %s :You're not a channel operator",user->nick, chan->name);
 181                                 return NULL;
 182                         }
 183                 }
 184
 185                 for (int i = 0; i != MAXCHANS; i++)
 186                 {
 187                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 188                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 189                         {
 190                                 if (d->chans[i].uc_modes & UCMODE_HOP)
 191                                 {
 192                                         /* mode already set on user, dont allow multiple */
 193                                         return NULL;
 194                                 }
 195                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_HOP;
 196                                 log(DEBUG,"gave h-ops: %s %s",d->chans[i].channel->name,d->nick);
 197                                 return d->nick;
 198                         }
 199                 }
 200         }
 201         return NULL;
 202 }
 203
 204 char* give_voice(userrec *user,char *dest,chanrec *chan,int status)
 205 {
 206         userrec *d;
 207         int i;
 208
 209         if ((!user) || (!dest) || (!chan))
 210         {
 211                 log(DEFAULT,"*** BUG *** give_voice was given an invalid parameter");
 212                 return NULL;
 213         }
 214
 215         d = Find(dest);
 216         if (!isnick(dest))
 217         {
 218                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 219                 return NULL;
 220         }
 221         if (!d)
 222         {
 223                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 224                 return NULL;
 225         }
 226         else
 227         {
 228                 int MOD_RESULT = 0;
 229                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_VOICE));
 230
 231                 if (MOD_RESULT == ACR_DENY)
 232                         return NULL;
 233                 if (MOD_RESULT == ACR_DEFAULT)
 234                 {
 235                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 236                         {
 237                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 238                                 return NULL;
 239                         }
 240                 }
 241
 242                 for (int i = 0; i != MAXCHANS; i++)
 243                 {
 244                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 245                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 246                         {
 247                                 if (d->chans[i].uc_modes & UCMODE_VOICE)
 248                                 {
 249                                         /* mode already set on user, dont allow multiple */
 250                                         return NULL;
 251                                 }
 252                                 d->chans[i].uc_modes = d->chans[i].uc_modes | UCMODE_VOICE;
 253                                 log(DEBUG,"gave voice: %s %s",d->chans[i].channel->name,d->nick);
 254                                 return d->nick;
 255                         }
 256                 }
 257         }
 258         return NULL;
 259 }
 260
 261 char* take_ops(userrec *user,char *dest,chanrec *chan,int status)
 262 {
 263         userrec *d;
 264         int i;
 265
 266         if ((!user) || (!dest) || (!chan))
 267         {
 268                 log(DEFAULT,"*** BUG *** take_ops was given an invalid parameter");
 269                 return NULL;
 270         }
 271
 272         d = Find(dest);
 273         if (!isnick(dest))
 274         {
 275                 log(DEBUG,"take_ops was given an invalid target nickname of %s",dest);
 276                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 277                 return NULL;
 278         }
 279         if (!d)
 280         {
 281                 log(DEBUG,"take_ops couldnt resolve the target nickname: %s",dest);
 282                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 283                 return NULL;
 284         }
 285         else
 286         {
 287                 int MOD_RESULT = 0;
 288                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEOP));
 289
 290                 if (MOD_RESULT == ACR_DENY)
 291                         return NULL;
 292                 if (MOD_RESULT == ACR_DEFAULT)
 293                 {
 294                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 295                         {
 296                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 297                                 return NULL;
 298                         }
 299                 }
 300
 301                 for (int i = 0; i != MAXCHANS; i++)
 302                 {
 303                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 304                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 305                         {
 306                                 if ((d->chans[i].uc_modes & UCMODE_OP) == 0)
 307                                 {
 308                                         /* mode already set on user, dont allow multiple */
 309                                         return NULL;
 310                                 }
 311                                 d->chans[i].uc_modes ^= UCMODE_OP;
 312                                 log(DEBUG,"took ops: %s %s",d->chans[i].channel->name,d->nick);
 313                                 return d->nick;
 314                         }
 315                 }
 316                 log(DEBUG,"take_ops couldnt locate the target channel in the target users list");
 317         }
 318         return NULL;
 319 }
 320
 321 char* take_hops(userrec *user,char *dest,chanrec *chan,int status)
 322 {
 323         userrec *d;
 324         int i;
 325
 326         if ((!user) || (!dest) || (!chan))
 327         {
 328                 log(DEFAULT,"*** BUG *** take_hops was given an invalid parameter");
 329                 return NULL;
 330         }
 331
 332         d = Find(dest);
 333         if (!isnick(dest))
 334         {
 335                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 336                 return NULL;
 337         }
 338         if (!d)
 339         {
 340                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 341                 return NULL;
 342         }
 343         else
 344         {
 345                 int MOD_RESULT = 0;
 346                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEHALFOP));
 347
 348                 if (MOD_RESULT == ACR_DENY)
 349                         return NULL;
 350                 if (MOD_RESULT == ACR_DEFAULT)
 351                 {
 352                         if ((status < STATUS_OP) && (!is_uline(user->server)))
 353                         {
 354                                 WriteServ(user->fd,"482 %s %s :You are not a channel operator",user->nick, chan->name);
 355                                 return NULL;
 356                         }
 357                 }
 358
 359                 for (int i = 0; i != MAXCHANS; i++)
 360                 {
 361                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 362                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 363                         {
 364                                 if ((d->chans[i].uc_modes & UCMODE_HOP) == 0)
 365                                 {
 366                                         /* mode already set on user, dont allow multiple */
 367                                         return NULL;
 368                                 }
 369                                 d->chans[i].uc_modes ^= UCMODE_HOP;
 370                                 log(DEBUG,"took h-ops: %s %s",d->chans[i].channel->name,d->nick);
 371                                 return d->nick;
 372                         }
 373                 }
 374         }
 375         return NULL;
 376 }
 377
 378 char* take_voice(userrec *user,char *dest,chanrec *chan,int status)
 379 {
 380         userrec *d;
 381         int i;
 382
 383         if ((!user) || (!dest) || (!chan))
 384         {
 385                 log(DEFAULT,"*** BUG *** take_voice was given an invalid parameter");
 386                 return NULL;
 387         }
 388
 389         d = Find(dest);
 390         if (!isnick(dest))
 391         {
 392                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 393                 return NULL;
 394         }
 395         if (!d)
 396         {
 397                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, dest);
 398                 return NULL;
 399         }
 400         else
 401         {
 402                 int MOD_RESULT = 0;
 403                 FOREACH_RESULT(OnAccessCheck(user,d,chan,AC_DEVOICE));
 404
 405                 if (MOD_RESULT == ACR_DENY)
 406                         return NULL;
 407                 if (MOD_RESULT == ACR_DEFAULT)
 408                 {
 409                         if ((status < STATUS_HOP) && (!is_uline(user->server)))
 410                         {
 411                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, chan->name);
 412                                 return NULL;
 413                         }
 414                 }
 415
 416                 for (int i = 0; i != MAXCHANS; i++)
 417                 {
 418                         if ((d->chans[i].channel != NULL) && (chan != NULL))
 419                         if (!strcasecmp(d->chans[i].channel->name,chan->name))
 420                         {
 421                                 if ((d->chans[i].uc_modes & UCMODE_VOICE) == 0)
 422                                 {
 423                                         /* mode already set on user, dont allow multiple */
 424                                         return NULL;
 425                                 }
 426                                 d->chans[i].uc_modes ^= UCMODE_VOICE;
 427                                 log(DEBUG,"took voice: %s %s",d->chans[i].channel->name,d->nick);
 428                                 return d->nick;
 429                         }
 430                 }
 431         }
 432         return NULL;
 433 }
 434
 435 char* add_ban(userrec *user,char *dest,chanrec *chan,int status)
 436 {
 437         if ((!user) || (!dest) || (!chan)) {
 438                 log(DEFAULT,"*** BUG *** add_ban was given an invalid parameter");
 439                 return NULL;
 440         }
 441
 442         BanItem b;
 443         if ((!user) || (!dest) || (!chan))
 444                 return NULL;
 445         if (strchr(dest,'!')==0)
 446                 return NULL;
 447         if (strchr(dest,'@')==0)
 448                 return NULL;
 449         for (int i = 0; i < strlen(dest); i++)
 450                 if (dest[i] < 32)
 451                         return NULL;
 452         for (int i = 0; i < strlen(dest); i++)
 453                 if (dest[i] > 126)
 454                         return NULL;
 455         int c = 0;
 456         for (int i = 0; i < strlen(dest); i++)
 457                 if (dest[i] == '!')
 458                         c++;
 459         if (c>1)
 460                 return NULL;
 461         c = 0;
 462         for (int i = 0; i < strlen(dest); i++)
 463                 if (dest[i] == '@')
 464                         c++;
 465         if (c>1)
 466                 return NULL;
 467         log(DEBUG,"add_ban: %s %s",chan->name,user->nick);
 468
 469         TidyBan(dest);
 470         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 471         {
 472                 if (!strcasecmp(i->data,dest))
 473                 {
 474                         // dont allow a user to set the same ban twice
 475                         return NULL;
 476                 }
 477         }
 478
 479         b.set_time = time(NULL);
 480         strncpy(b.data,dest,MAXBUF);
 481         strncpy(b.set_by,user->nick,NICKMAX);
 482         chan->bans.push_back(b);
 483         return dest;
 484 }
 485
 486 char* take_ban(userrec *user,char *dest,chanrec *chan,int status)
 487 {
 488         if ((!user) || (!dest) || (!chan)) {
 489                 log(DEFAULT,"*** BUG *** take_ban was given an invalid parameter");
 490                 return 0;
 491         }
 492
 493         log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
 494         for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
 495         {
 496                 if (!strcasecmp(i->data,dest))
 497                 {
 498                         chan->bans.erase(i);
 499                         return dest;
 500                 }
 501         }
 502         return NULL;
 503 }
 504
 505 void process_modes(char **parameters,userrec* user,chanrec *chan,int status, int pcnt, bool servermode, bool silent, bool local)
 506 {
 507         if (!parameters) {
 508                 log(DEFAULT,"*** BUG *** process_modes was given an invalid parameter");
 509                 return;
 510         }
 511
 512         char modelist[MAXBUF];
 513         char outlist[MAXBUF];
 514         char outstr[MAXBUF];
 515         char outpars[32][MAXBUF];
 516         int param = 2;
 517         int pc = 0;
 518         int ptr = 0;
 519         int mdir = 1;
 520         char* r = NULL;
 521         bool k_set = false, l_set = false;
 522
 523         if (pcnt < 2)
 524         {
 525                 return;
 526         }
 527
 528         int MOD_RESULT = 0;
 529         FOREACH_RESULT(OnAccessCheck(user,NULL,chan,AC_GENERAL_MODE));
 530
 531         if (MOD_RESULT == ACR_DENY)
 532                 return;
 533
 534         log(DEBUG,"process_modes: start: parameters=%d",pcnt);
 535
 536         strlcpy(modelist,parameters[1],MAXBUF); /* mode list, e.g. +oo-o *
 537                                                  * parameters[2] onwards are parameters for
 538                                                  * modes that require them :) */
 539         strlcpy(outlist,"+",MAXBUF);
 540         mdir = 1;
 541
 542         log(DEBUG,"process_modes: modelist: %s",modelist);
 543
 544         for (ptr = 0; ptr < strlen(modelist); ptr++)
 545         {
 546                 r = NULL;
 547
 548                 {
 549                         log(DEBUG,"process_modes: modechar: %c",modelist[ptr]);
 550                         char modechar = modelist[ptr];
 551                         switch (modelist[ptr])
 552                         {
 553                                 case '-':
 554                                         if (mdir != 0)
 555                                         {
 556                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 557                                                 {
 558                                                         outlist[strlen(outlist)-1] = '-';
 559                                                 }
 560                                                 else
 561                                                 {
 562                                                         strcat(outlist,"-");
 563                                                 }
 564                                         }
 565                                         mdir = 0;
 566
 567                                 break;
 568
 569                                 case '+':
 570                                         if (mdir != 1)
 571                                         {
 572                                                 if ((outlist[strlen(outlist)-1] == '+') || (outlist[strlen(outlist)-1] == '-'))
 573                                                 {
 574                                                         outlist[strlen(outlist)-1] = '+';
 575                                                 }
 576                                                 else
 577                                                 {
 578                                                         strcat(outlist,"+");
 579                                                 }
 580                                         }
 581                                         mdir = 1;
 582                                 break;
 583
 584                                 case 'o':
 585                                         log(DEBUG,"Ops");
 586                                         if ((param >= pcnt)) break;
 587                                         log(DEBUG,"Enough parameters left");
 588                                         if (mdir == 1)
 589                                         {
 590                                                 log(DEBUG,"calling give_ops");
 591                                                 r = give_ops(user,parameters[param++],chan,status);
 592                                         }
 593                                         else
 594                                         {
 595                                                 log(DEBUG,"calling take_ops");
 596                                                 r = take_ops(user,parameters[param++],chan,status);
 597                                         }
 598                                         if (r)
 599                                         {
 600                                                 strlcat(outlist,"o",MAXBUF);
 601                                                 strlcpy(outpars[pc++],r,MAXBUF);
 602                                         }
 603                                 break;
 604
 605                                 case 'h':
 606                                         if (((param >= pcnt)) || (!AllowHalfop)) break;
 607                                         if (mdir == 1)
 608                                         {
 609                                                 r = give_hops(user,parameters[param++],chan,status);
 610                                         }
 611                                         else
 612                                         {
 613                                                 r = take_hops(user,parameters[param++],chan,status);
 614                                         }
 615                                         if (r)
 616                                         {
 617                                                 strlcat(outlist,"h",MAXBUF);
 618                                                 strlcpy(outpars[pc++],r,MAXBUF);
 619                                         }
 620                                 break;
 621
 622
 623                                 case 'v':
 624                                         if ((param >= pcnt)) break;
 625                                         if (mdir == 1)
 626                                         {
 627                                                 r = give_voice(user,parameters[param++],chan,status);
 628                                         }
 629                                         else
 630                                         {
 631                                                 r = take_voice(user,parameters[param++],chan,status);
 632                                         }
 633                                         if (r)
 634                                         {
 635                                                 strlcat(outlist,"v",MAXBUF);
 636                                                 strlcpy(outpars[pc++],r,MAXBUF);
 637                                         }
 638                                 break;
 639
 640                                 case 'b':
 641                                         if ((param >= pcnt)) break;
 642                                         if (mdir == 1)
 643                                         {
 644                                                 r = add_ban(user,parameters[param++],chan,status);
 645                                         }
 646                                         else
 647                                         {
 648                                                 r = take_ban(user,parameters[param++],chan,status);
 649                                         }
 650                                         if (r)
 651                                         {
 652                                                 strlcat(outlist,"b",MAXBUF);
 653                                                 strlcpy(outpars[pc++],parameters[param-1],MAXBUF);
 654                                         }
 655                                 break;
 656
 657
 658                                 case 'k':
 659                                         if ((param >= pcnt))
 660                                                 break;
 661
 662                                         if (mdir == 1)
 663                                         {
 664                                                 if (k_set)
 665                                                         break;
 666
 667                                                 if (!strcmp(chan->key,""))
 668                                                 {
 669                                                         strcat(outlist,"k");
 670                                                         char key[MAXBUF];
 671                                                         strlcpy(key,parameters[param++],MAXBUF);
 672                                                         if (strlen(key)>32) {
 673                                                                 key[31] = '\0';
 674                                                         }
 675                                                         strlcpy(outpars[pc++],key,MAXBUF);
 676                                                         strlcpy(chan->key,key,MAXBUF);
 677                                                         k_set = true;
 678                                                 }
 679                                         }
 680                                         else
 681                                         {
 682                                                 /* checks on -k are case sensitive and only accurate to the
 683                                                    first 32 characters */
 684                                                 char key[MAXBUF];
 685                                                 strlcpy(key,parameters[param++],MAXBUF);
 686                                                 if (strlen(key)>32) {
 687                                                         key[31] = '\0';
 688                                                 }
 689                                                 /* only allow -k if correct key given */
 690                                                 if (!strcmp(chan->key,key))
 691                                                 {
 692                                                         strlcat(outlist,"k",MAXBUF);
 693                                                         strlcpy(chan->key,"",MAXBUF);
 694                                                         strlcpy(outpars[pc++],key,MAXBUF);
 695                                                 }
 696                                         }
 697                                 break;
 698
 699                                 case 'l':
 700                                         if (mdir == 0)
 701                                         {
 702                                                 if (chan->limit)
 703                                                 {
 704                                                         strcat(outlist,"l");
 705                                                         chan->limit = 0;
 706                                                 }
 707                                         }
 708
 709                                         if ((param >= pcnt)) break;
 710                                         if (mdir == 1)
 711                                         {
 712                                                 if (l_set)
 713                                                         break;
 714
 715                                                 bool invalid = false;
 716                                                 for (int i = 0; i < strlen(parameters[param]); i++)
 717                                                 {
 718                                                         if ((parameters[param][i] < '0') || (parameters[param][i] > '9'))
 719                                                         {
 720                                                                 invalid = true;
 721                                                         }
 722                                                 }
 723                                                 if (atoi(parameters[param]) < 1)
 724                                                 {
 725                                                         invalid = true;
 726                                                 }
 727
 728                                                 if (invalid)
 729                                                         break;
 730
 731                                                 chan->limit = atoi(parameters[param]);
 732
 733                                                 // reported by mech: large values cause underflow
 734                                                 if (chan->limit < 0)
 735                                                         chan->limit = 0x7FFFFF;
 736
 737                                                 if (chan->limit)
 738                                                 {
 739                                                         strlcat(outlist,"l",MAXBUF);
 740                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 741                                                         l_set = true;
 742                                                 }
 743                                         }
 744                                 break;
 745
 746                                 case 'i':
 747                                         if (chan->inviteonly != mdir)
 748                                         {
 749                                                 strlcat(outlist,"i",MAXBUF);
 750                                         }
 751                                         chan->inviteonly = mdir;
 752                                 break;
 753
 754                                 case 't':
 755                                         if (chan->topiclock != mdir)
 756                                         {
 757                                                 strlcat(outlist,"t",MAXBUF);
 758                                         }
 759                                         chan->topiclock = mdir;
 760                                 break;
 761
 762                                 case 'n':
 763                                         if (chan->noexternal != mdir)
 764                                         {
 765                                                 strlcat(outlist,"n",MAXBUF);
 766                                         }
 767                                         chan->noexternal = mdir;
 768                                 break;
 769
 770                                 case 'm':
 771                                         if (chan->moderated != mdir)
 772                                         {
 773                                                 strlcat(outlist,"m",MAXBUF);
 774                                         }
 775                                         chan->moderated = mdir;
 776                                 break;
 777
 778                                 case 's':
 779                                         if (chan->secret != mdir)
 780                                         {
 781                                                 strcat(outlist,"s");
 782                                                 if (chan->c_private)
 783                                                 {
 784                                                         chan->c_private = 0;
 785                                                         if (mdir)
 786                                                         {
 787                                                                 strlcat(outlist,"-p+",MAXBUF);
 788                                                         }
 789                                                         else
 790                                                         {
 791                                                                 strlcat(outlist,"+p-",MAXBUF);
 792                                                         }
 793                                                 }
 794                                         }
 795                                         chan->secret = mdir;
 796                                 break;
 797
 798                                 case 'p':
 799                                         if (chan->c_private != mdir)
 800                                         {
 801                                                 strlcat(outlist,"p",MAXBUF);
 802                                                 if (chan->secret)
 803                                                 {
 804                                                         chan->secret = 0;
 805                                                         if (mdir)
 806                                                         {
 807                                                                 strlcat(outlist,"-s+",MAXBUF);
 808                                                         }
 809                                                         else
 810                                                         {
 811                                                                 strlcat(outlist,"+s-",MAXBUF);
 812                                                         }
 813                                                 }
 814                                         }
 815                                         chan->c_private = mdir;
 816                                 break;
 817
 818                                 default:
 819                                         log(DEBUG,"Preprocessing custom mode %c: modelist: %s",modechar,chan->custom_modes);
 820                                         string_list p;
 821                                         p.clear();
 822                                         if (((!strchr(chan->custom_modes,modechar)) && (!mdir)) || ((strchr(chan->custom_modes,modechar)) && (mdir)))
 823                                         {
 824                                                 if (!ModeIsListMode(modechar,MT_CHANNEL))
 825                                                 {
 826                                                         log(DEBUG,"Mode %c isnt set on %s but trying to remove!",modechar,chan->name);
 827                                                         break;
 828                                                 }
 829                                         }
 830                                         if (ModeDefined(modechar,MT_CHANNEL))
 831                                         {
 832                                                 log(DEBUG,"A module has claimed this mode");
 833                                                 if (param<pcnt)
 834                                                 {
 835                                                         if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 836                                                         {
 837                                                                 p.push_back(parameters[param]);
 838                                                         }
 839                                                         if ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir))
 840                                                         {
 841                                                                 p.push_back(parameters[param]);
 842                                                         }
 843                                                 }
 844                                                 bool handled = false;
 845                                                 if (param>=pcnt)
 846                                                 {
 847                                                         // we're supposed to have a parameter, but none was given... so dont handle the mode.
 848                                                         if (((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir)) || ((ModeDefinedOff(modechar,MT_CHANNEL)>0) && (!mdir)))
 849                                                         {
 850                                                                 log(DEBUG,"Not enough parameters for module-mode %c",modechar);
 851                                                                 handled = true;
 852                                                                 param++;
 853                                                         }
 854                                                 }
 855                                                 for (int i = 0; i <= MODCOUNT; i++)
 856                                                 {
 857                                                         if (!handled)
 858                                                         {
 859                                                                 int t = modules[i]->OnExtendedMode(user,chan,modechar,MT_CHANNEL,mdir,p);
 860                                                                 if (t != 0)
 861                                                                 {
 862                                                                         log(DEBUG,"OnExtendedMode returned nonzero for a module");
 863                                                                         char app[] = {modechar, 0};
 864                                                                         if (ModeIsListMode(modechar,MT_CHANNEL))
 865                                                                         {
 866                                                                                 if (t == -1)
 867                                                                                 {
 868                                                                                         pc++;
 869                                                                                 }
 870                                                                                 else
 871                                                                                 {
 872                                                                                         if (ptr>0)
 873                                                                                         {
 874                                                                                                 strlcat(outlist, app,MAXBUF);
 875                                                                                         }
 876                                                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 877                                                                                 }
 878                                                                         }
 879                                                                         else
 880                                                                         {
 881                                                                                 if (ptr>0)
 882                                                                                 {
 883                                                                                         if ((modelist[ptr-1] == '+') || (modelist[ptr-1] == '-'))
 884                                                                                         {
 885                                                                                                 strlcat(outlist, app,MAXBUF);
 886                                                                                         }
 887                                                                                         else if (!strchr(outlist,modechar))
 888                                                                                         {
 889                                                                                                 strlcat(outlist, app,MAXBUF);
 890                                                                                         }
 891                                                                                 }
 892                                                                                 chan->SetCustomMode(modechar,mdir);
 893                                                                                 // include parameters in output if mode has them
 894                                                                                 if ((ModeDefinedOn(modechar,MT_CHANNEL)>0) && (mdir))
 895                                                                                 {
 896                                                                                         chan->SetCustomModeParam(modelist[ptr],parameters[param],mdir);
 897                                                                                         strlcpy(outpars[pc++],parameters[param++],MAXBUF);
 898                                                                                 }
 899                                                                         }
 900                                                                         // break, because only one module can handle the mode.
 901                                                                         handled = true;
 902                                                                 }
 903                                                         }
 904                                                 }
 905                                         }
 906                                         else
 907                                         {
 908                                                 WriteServ(user->fd,"472 %s %c :is unknown mode char to me",user->nick,modechar);
 909                                         }
 910                                 break;
 911
 912                         }
 913                 }
 914         }
 915
 916         /* this ensures only the *valid* modes are sent out onto the network */
 917         while ((outlist[strlen(outlist)-1] == '-') || (outlist[strlen(outlist)-1] == '+'))
 918         {
 919                 outlist[strlen(outlist)-1] = '\0';
 920         }
 921         if (strcmp(outlist,""))
 922         {
 923                 strlcpy(outstr,outlist,MAXBUF);
 924                 for (ptr = 0; ptr < pc; ptr++)
 925                 {
 926                         strlcat(outstr," ",MAXBUF);
 927                         strlcat(outstr,outpars[ptr],MAXBUF);
 928                 }
 929                 if (local)
 930                 {
 931                         log(DEBUG,"Local mode change");
 932                         WriteChannelLocal(chan, user, "MODE %s %s",chan->name,outstr);
 933                 }
 934                 else
 935                 {
 936                         if (servermode)
 937                         {
 938                                 if (!silent)
 939                                 {
 940                                         WriteChannelWithServ(ServerName,chan,user,"MODE %s %s",chan->name,outstr);
 941                                         // M token for a usermode must go to all servers
 942                                         char buffer[MAXBUF];
 943                                         snprintf(buffer,MAXBUF,"M %s %s",chan->name, outstr);
 944                                         NetSendToAll(buffer);
 945                                 }
 946
 947                         }
 948                         else
 949                         {
 950                                 if (!silent)
 951                                 {
 952                                         WriteChannel(chan,user,"MODE %s %s",chan->name,outstr);
 953                                         // M token for a usermode must go to all servers
 954                                         char buffer[MAXBUF];
 955                                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick,chan->name, outstr);
 956                                         NetSendToAll(buffer);
 957                                 }
 958                         }
 959                 }
 960         }
 961 }
 962
 963 // based on sourcemodes, return true or false to determine if umode is a valid mode a user may set on themselves or others.
 964
 965 bool allowed_umode(char umode, char* sourcemodes,bool adding)
 966 {
 967         log(DEBUG,"Allowed_umode: %c %s",umode,sourcemodes);
 968         // RFC1459 specified modes
 969         if ((umode == 'w') || (umode == 's') || (umode == 'i'))
 970         {
 971                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 972                 return true;
 973         }
 974
 975         // user may not +o themselves or others, but an oper may de-oper other opers or themselves
 976         if ((strchr(sourcemodes,'o')) && (!adding))
 977         {
 978                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 979                 return true;
 980         }
 981         else if (umode == 'o')
 982         {
 983                 log(DEBUG,"umode %c allowed by RFC1459 scemantics",umode);
 984                 return false;
 985         }
 986
 987         // process any module-defined modes that need oper
 988         if ((ModeDefinedOper(umode,MT_CLIENT)) && (strchr(sourcemodes,'o')))
 989         {
 990                 log(DEBUG,"umode %c allowed by module handler (oper only mode)",umode);
 991                 return true;
 992         }
 993         else
 994         if (ModeDefined(umode,MT_CLIENT))
 995         {
 996                 // process any module-defined modes that don't need oper
 997                 log(DEBUG,"umode %c allowed by module handler (non-oper mode)",umode);
 998                 if ((ModeDefinedOper(umode,MT_CLIENT)) && (!strchr(sourcemodes,'o')))
 999                 {
1000                         // no, this mode needs oper, and this user 'aint got what it takes!
1001                         return false;
1002                 }
1003                 return true;
1004         }
1005
1006         // anything else - return false.
1007         log(DEBUG,"umode %c not known by any ruleset",umode);
1008         return false;
1009 }
1010
1011 bool process_module_umode(char umode, userrec* source, void* dest, bool adding)
1012 {
1013         userrec* s2;
1014         bool faked = false;
1015         if (!source)
1016         {
1017                 s2 = new userrec;
1018                 strlcpy(s2->nick,ServerName,NICKMAX);
1019                 strcpy(s2->modes,"o");
1020                 s2->fd = -1;
1021                 source = s2;
1022                 faked = true;
1023         }
1024         string_list p;
1025         p.clear();
1026         if (ModeDefined(umode,MT_CLIENT))
1027         {
1028                 for (int i = 0; i <= MODCOUNT; i++)
1029                 {
1030                         if (modules[i]->OnExtendedMode(source,(void*)dest,umode,MT_CLIENT,adding,p))
1031                         {
1032                                 log(DEBUG,"Module %s claims umode %c",module_names[i].c_str(),umode);
1033                                 return true;
1034                         }
1035                 }
1036                 log(DEBUG,"No module claims umode %c",umode);
1037                 if (faked)
1038                 {
1039                         delete s2;
1040                         source = NULL;
1041                 }
1042                 return false;
1043         }
1044         else
1045         {
1046                 if (faked)
1047                 {
1048                         delete s2;
1049                         source = NULL;
1050                 }
1051                 return false;
1052         }
1053 }
1054
1055 void handle_mode(char **parameters, int pcnt, userrec *user)
1056 {
1057         chanrec* Ptr;
1058         userrec* dest;
1059         int can_change,i;
1060         int direction = 1;
1061         char outpars[MAXBUF];
1062
1063         dest = Find(parameters[0]);
1064
1065         if (!user)
1066         {
1067                 return;
1068         }
1069
1070         if ((dest) && (pcnt == 1))
1071         {
1072                 WriteServ(user->fd,"221 %s :+%s",dest->nick,dest->modes);
1073                 return;
1074         }
1075
1076         if ((dest) && (pcnt > 1))
1077         {
1078                 char dmodes[MAXBUF];
1079                 strlcpy(dmodes,dest->modes,MAXBUF);
1080                 log(DEBUG,"pulled up dest user modes: %s",dmodes);
1081
1082                 can_change = 0;
1083                 if (user != dest)
1084                 {
1085                         if (strchr(user->modes,'o'))
1086                         {
1087                                 can_change = 1;
1088                         }
1089                 }
1090                 else
1091                 {
1092                         can_change = 1;
1093                 }
1094                 if (!can_change)
1095                 {
1096                         WriteServ(user->fd,"482 %s :Can't change mode for other users",user->nick);
1097                         return;
1098                 }
1099
1100                 strcpy(outpars,"+");
1101                 direction = 1;
1102
1103                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1104                         return;
1105
1106                 for (int i = 0; i < strlen(parameters[1]); i++)
1107                 {
1108                         if (parameters[1][i] == '+')
1109                         {
1110                                 if (direction != 1)
1111                                 {
1112                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1113                                         {
1114                                                 outpars[strlen(outpars)-1] = '+';
1115                                         }
1116                                         else
1117                                         {
1118                                                 strcat(outpars,"+");
1119                                         }
1120                                 }
1121                                 direction = 1;
1122                         }
1123                         else
1124                         if (parameters[1][i] == '-')
1125                         {
1126                                 if (direction != 0)
1127                                 {
1128                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1129                                         {
1130                                                 outpars[strlen(outpars)-1] = '-';
1131                                         }
1132                                         else
1133                                         {
1134                                                 strcat(outpars,"-");
1135                                         }
1136                                 }
1137                                 direction = 0;
1138                         }
1139                         else
1140                         {
1141                                 can_change = 0;
1142                                 if (strchr(user->modes,'o'))
1143                                 {
1144                                         can_change = 1;
1145                                 }
1146                                 else
1147                                 {
1148                                         if ((parameters[1][i] == 'i') || (parameters[1][i] == 'w') || (parameters[1][i] == 's') || (allowed_umode(parameters[1][i],user->modes,direction)))
1149                                         {
1150                                                 can_change = 1;
1151                                         }
1152                                 }
1153                                 if (can_change)
1154                                 {
1155                                         if (direction == 1)
1156                                         {
1157                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1158                                                 {
1159                                                         char umode = parameters[1][i];
1160                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1161                                                         {
1162                                                                 dmodes[strlen(dmodes)+1]='\0';
1163                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1164                                                                 outpars[strlen(outpars)+1]='\0';
1165                                                                 outpars[strlen(outpars)] = parameters[1][i];
1166                                                         }
1167                                                 }
1168                                         }
1169                                         else
1170                                         {
1171                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1172                                                 {
1173                                                         char umode = parameters[1][i];
1174                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1175                                                         {
1176                                                                 int q = 0;
1177                                                                 char temp[MAXBUF];
1178                                                                 char moo[MAXBUF];
1179
1180                                                                 outpars[strlen(outpars)+1]='\0';
1181                                                                 outpars[strlen(outpars)] = parameters[1][i];
1182
1183                                                                 strcpy(temp,"");
1184                                                                 for (q = 0; q < strlen(dmodes); q++)
1185                                                                 {
1186                                                                         if (dmodes[q] != parameters[1][i])
1187                                                                         {
1188                                                                                 moo[0] = dmodes[q];
1189                                                                                 moo[1] = '\0';
1190                                                                                 strlcat(temp,moo,MAXBUF);
1191                                                                         }
1192                                                                 }
1193                                                                 strlcpy(dmodes,temp,MAXBUF);
1194                                                         }
1195                                                 }
1196                                         }
1197                                 }
1198                         }
1199                 }
1200                 if (strlen(outpars))
1201                 {
1202                         char b[MAXBUF];
1203                         strlcpy(b,"",MAXBUF);
1204                         int z = 0;
1205                         int i = 0;
1206                         while (i < strlen (outpars))
1207                         {
1208                                 b[z++] = outpars[i++];
1209                                 b[z] = '\0';
1210                                 if (i<strlen(outpars)-1)
1211                                 {
1212                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1213                                         {
1214                                                 // someones playing silly buggers and trying
1215                                                 // to put a +- or -+ into the line...
1216                                                 i++;
1217                                         }
1218                                 }
1219                                 if (i == strlen(outpars)-1)
1220                                 {
1221                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1222                                         {
1223                                                 i++;
1224                                         }
1225                                 }
1226                         }
1227
1228                         z = strlen(b)-1;
1229                         if ((b[z] == '-') || (b[z] == '+'))
1230                                 b[z] == '\0';
1231
1232                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1233                                 return;
1234
1235                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1236
1237                         // M token for a usermode must go to all servers
1238                         char buffer[MAXBUF];
1239                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1240                         NetSendToAll(buffer);
1241
1242                         if (strlen(dmodes)>MAXMODES)
1243                         {
1244                                 dmodes[MAXMODES-1] = '\0';
1245                         }
1246                         log(DEBUG,"Stripped mode line");
1247                         log(DEBUG,"Line dest is now %s",dmodes);
1248                         strlcpy(dest->modes,dmodes,MAXMODES);
1249
1250                 }
1251
1252                 return;
1253         }
1254
1255         Ptr = FindChan(parameters[0]);
1256         if (Ptr)
1257         {
1258                 if (pcnt == 1)
1259                 {
1260                         /* just /modes #channel */
1261                         WriteServ(user->fd,"324 %s %s +%s",user->nick, Ptr->name, chanmodes(Ptr));
1262                         WriteServ(user->fd,"329 %s %s %d", user->nick, Ptr->name, Ptr->created);
1263                         return;
1264                 }
1265                 else
1266                 if (pcnt == 2)
1267                 {
1268                         if ((!strcmp(parameters[1],"+b")) || (!strcmp(parameters[1],"b")))
1269                         {
1270
1271                                 for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
1272                                 {
1273                                         WriteServ(user->fd,"367 %s %s %s %s %d",user->nick, Ptr->name, i->data, i->set_by, i->set_time);
1274                                 }
1275                                 WriteServ(user->fd,"368 %s %s :End of channel ban list",user->nick, Ptr->name);
1276                                 return;
1277                         }
1278                 }
1279
1280                 int MOD_RESULT = 0;
1281                 FOREACH_RESULT(OnAccessCheck(user,NULL,Ptr,AC_GENERAL_MODE));
1282
1283                 if (MOD_RESULT == ACR_DENY)
1284                         return;
1285                 if (MOD_RESULT == ACR_DEFAULT)
1286                 {
1287                         if ((cstatus(user,Ptr) < STATUS_HOP) && (Ptr))
1288                         {
1289                                 WriteServ(user->fd,"482 %s %s :You must be at least a half-operator to change modes on this channel",user->nick, Ptr->name);
1290                                 return;
1291                         }
1292                 }
1293
1294                 process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,false);
1295         }
1296         else
1297         {
1298                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1299         }
1300 }
1301
1302
1303
1304
1305 void server_mode(char **parameters, int pcnt, userrec *user)
1306 {
1307         chanrec* Ptr;
1308         userrec* dest;
1309         int can_change,i;
1310         int direction = 1;
1311         char outpars[MAXBUF];
1312
1313         dest = Find(parameters[0]);
1314
1315         // fix: ChroNiCk found this - we cant use this as debug if its null!
1316         if (dest)
1317         {
1318                 log(DEBUG,"server_mode on %s",dest->nick);
1319         }
1320
1321         if ((dest) && (pcnt > 1))
1322         {
1323                 log(DEBUG,"params > 1");
1324
1325                 char dmodes[MAXBUF];
1326                 strlcpy(dmodes,dest->modes,MAXBUF);
1327
1328                 strcpy(outpars,"+");
1329                 direction = 1;
1330
1331                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1332                         return;
1333
1334                 for (int i = 0; i < strlen(parameters[1]); i++)
1335                 {
1336                         if (parameters[1][i] == '+')
1337                         {
1338                                 if (direction != 1)
1339                                 {
1340                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1341                                         {
1342                                                 outpars[strlen(outpars)-1] = '+';
1343                                         }
1344                                         else
1345                                         {
1346                                                 strcat(outpars,"+");
1347                                         }
1348                                 }
1349                                 direction = 1;
1350                         }
1351                         else
1352                         if (parameters[1][i] == '-')
1353                         {
1354                                 if (direction != 0)
1355                                 {
1356                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1357                                         {
1358                                                 outpars[strlen(outpars)-1] = '-';
1359                                         }
1360                                         else
1361                                         {
1362                                                 strcat(outpars,"-");
1363                                         }
1364                                 }
1365                                 direction = 0;
1366                         }
1367                         else
1368                         {
1369                                 log(DEBUG,"begin mode processing entry");
1370                                 can_change = 1;
1371                                 if (can_change)
1372                                 {
1373                                         if (direction == 1)
1374                                         {
1375                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1376                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1377                                                 {
1378                                                         char umode = parameters[1][i];
1379                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1380                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1381                                                         {
1382                                                                 dmodes[strlen(dmodes)+1]='\0';
1383                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1384                                                                 outpars[strlen(outpars)+1]='\0';
1385                                                                 outpars[strlen(outpars)] = parameters[1][i];
1386                                                         }
1387                                                 }
1388                                         }
1389                                         else
1390                                         {
1391                                                 // can only remove a mode they already have
1392                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1393                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1394                                                 {
1395                                                         char umode = parameters[1][i];
1396                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1397                                                         if ((process_module_umode(umode, user, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1398                                                         {
1399                                                                 int q = 0;
1400                                                                 char temp[MAXBUF];
1401                                                                 char moo[MAXBUF];
1402
1403                                                                 outpars[strlen(outpars)+1]='\0';
1404                                                                 outpars[strlen(outpars)] = parameters[1][i];
1405
1406                                                                 strcpy(temp,"");
1407                                                                 for (q = 0; q < strlen(dmodes); q++)
1408                                                                 {
1409                                                                         if (dmodes[q] != parameters[1][i])
1410                                                                         {
1411                                                                                 moo[0] = dmodes[q];
1412                                                                                 moo[1] = '\0';
1413                                                                                 strlcat(temp,moo,MAXBUF);
1414                                                                         }
1415                                                                 }
1416                                                                 strlcpy(dmodes,temp,MAXBUF);
1417                                                         }
1418                                                 }
1419                                         }
1420                                 }
1421                         }
1422                 }
1423                 if (strlen(outpars))
1424                 {
1425                         char b[MAXBUF];
1426                         strlcpy(b,"",MAXBUF);
1427                         int z = 0;
1428                         int i = 0;
1429                         while (i < strlen (outpars))
1430                         {
1431                                 b[z++] = outpars[i++];
1432                                 b[z] = '\0';
1433                                 if (i<strlen(outpars)-1)
1434                                 {
1435                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1436                                         {
1437                                                 // someones playing silly buggers and trying
1438                                                 // to put a +- or -+ into the line...
1439                                                 i++;
1440                                         }
1441                                 }
1442                                 if (i == strlen(outpars)-1)
1443                                 {
1444                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1445                                         {
1446                                                 i++;
1447                                         }
1448                                 }
1449                         }
1450
1451                         z = strlen(b)-1;
1452                         if ((b[z] == '-') || (b[z] == '+'))
1453                                 b[z] == '\0';
1454
1455                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1456                                 return;
1457
1458                         WriteTo(user, dest, "MODE %s :%s", dest->nick, b);
1459
1460                         // M token for a usermode must go to all servers
1461                         char buffer[MAXBUF];
1462                         snprintf(buffer,MAXBUF,"m %s %s %s",user->nick, dest->nick, b);
1463                         NetSendToAll(buffer);
1464
1465                         if (strlen(dmodes)>MAXMODES)
1466                         {
1467                                 dmodes[MAXMODES-1] = '\0';
1468                         }
1469                         log(DEBUG,"Stripped mode line");
1470                         log(DEBUG,"Line dest is now %s",dmodes);
1471                         strlcpy(dest->modes,dmodes,MAXMODES);
1472
1473                 }
1474
1475                 return;
1476         }
1477
1478         Ptr = FindChan(parameters[0]);
1479         if (Ptr)
1480         {
1481                 process_modes(parameters,user,Ptr,STATUS_OP,pcnt,true,false,false);
1482         }
1483         else
1484         {
1485                 WriteServ(user->fd,"401 %s %s :No suck nick/channel",user->nick, parameters[0]);
1486         }
1487 }
1488
1489
1490
1491 void merge_mode(char **parameters, int pcnt)
1492 {
1493         chanrec* Ptr;
1494         userrec* dest;
1495         int can_change,i;
1496         int direction = 1;
1497         char outpars[MAXBUF];
1498
1499         dest = Find(parameters[0]);
1500
1501         // fix: ChroNiCk found this - we cant use this as debug if its null!
1502         if (dest)
1503         {
1504                 log(DEBUG,"merge_mode on %s",dest->nick);
1505         }
1506
1507         if ((dest) && (pcnt > 1))
1508         {
1509                 log(DEBUG,"params > 1");
1510
1511                 char dmodes[MAXBUF];
1512                 strlcpy(dmodes,dest->modes,MAXBUF);
1513
1514                 strcpy(outpars,"+");
1515                 direction = 1;
1516
1517                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1518                         return;
1519
1520                 for (int i = 0; i < strlen(parameters[1]); i++)
1521                 {
1522                         if (parameters[1][i] == '+')
1523                         {
1524                                 if (direction != 1)
1525                                 {
1526                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1527                                         {
1528                                                 outpars[strlen(outpars)-1] = '+';
1529                                         }
1530                                         else
1531                                         {
1532                                                 strcat(outpars,"+");
1533                                         }
1534                                 }
1535                                 direction = 1;
1536                         }
1537                         else
1538                         if (parameters[1][i] == '-')
1539                         {
1540                                 if (direction != 0)
1541                                 {
1542                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1543                                         {
1544                                                 outpars[strlen(outpars)-1] = '-';
1545                                         }
1546                                         else
1547                                         {
1548                                                 strcat(outpars,"-");
1549                                         }
1550                                 }
1551                                 direction = 0;
1552                         }
1553                         else
1554                         {
1555                                 log(DEBUG,"begin mode processing entry");
1556                                 can_change = 1;
1557                                 if (can_change)
1558                                 {
1559                                         if (direction == 1)
1560                                         {
1561                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1562                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],"o",true)))
1563                                                 {
1564                                                         char umode = parameters[1][i];
1565                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1566                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1567                                                         {
1568                                                                 dmodes[strlen(dmodes)+1]='\0';
1569                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1570                                                                 outpars[strlen(outpars)+1]='\0';
1571                                                                 outpars[strlen(outpars)] = parameters[1][i];
1572                                                         }
1573                                                 }
1574                                         }
1575                                         else
1576                                         {
1577                                                 // can only remove a mode they already have
1578                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1579                                                 if ((allowed_umode(parameters[1][i],"o",false)) && (strchr(dmodes,parameters[1][i])))
1580                                                 {
1581                                                         char umode = parameters[1][i];
1582                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1583                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1584                                                         {
1585                                                                 int q = 0;
1586                                                                 char temp[MAXBUF];
1587                                                                 char moo[MAXBUF];
1588
1589                                                                 outpars[strlen(outpars)+1]='\0';
1590                                                                 outpars[strlen(outpars)] = parameters[1][i];
1591
1592                                                                 strcpy(temp,"");
1593                                                                 for (q = 0; q < strlen(dmodes); q++)
1594                                                                 {
1595                                                                         if (dmodes[q] != parameters[1][i])
1596                                                                         {
1597                                                                                 moo[0] = dmodes[q];
1598                                                                                 moo[1] = '\0';
1599                                                                                 strlcat(temp,moo,MAXBUF);
1600                                                                         }
1601                                                                 }
1602                                                                 strlcpy(dmodes,temp,MAXBUF);
1603                                                         }
1604                                                 }
1605                                         }
1606                                 }
1607                         }
1608                 }
1609                 if (strlen(outpars))
1610                 {
1611                         char b[MAXBUF];
1612                         strcpy(b,"");
1613                         int z = 0;
1614                         int i = 0;
1615                         while (i < strlen (outpars))
1616                         {
1617                                 b[z++] = outpars[i++];
1618                                 b[z] = '\0';
1619                                 if (i<strlen(outpars)-1)
1620                                 {
1621                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1622                                         {
1623                                                 // someones playing silly buggers and trying
1624                                                 // to put a +- or -+ into the line...
1625                                                 i++;
1626                                         }
1627                                 }
1628                                 if (i == strlen(outpars)-1)
1629                                 {
1630                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1631                                         {
1632                                                 i++;
1633                                         }
1634                                 }
1635                         }
1636
1637                         z = strlen(b)-1;
1638                         if ((b[z] == '-') || (b[z] == '+'))
1639                                 b[z] == '\0';
1640
1641                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1642                                 return;
1643
1644                         if (strlen(dmodes)>MAXMODES)
1645                         {
1646                                 dmodes[MAXMODES-1] = '\0';
1647                         }
1648                         log(DEBUG,"Stripped mode line");
1649                         log(DEBUG,"Line dest is now %s",dmodes);
1650                         strlcpy(dest->modes,dmodes,MAXMODES);
1651
1652                 }
1653
1654                 return;
1655         }
1656
1657         Ptr = FindChan(parameters[0]);
1658         if (Ptr)
1659         {
1660                 userrec s2;
1661                 strlcpy(s2.nick,ServerName,NICKMAX);
1662                 strcpy(s2.modes,"o");
1663                 s2.fd = -1;
1664                 process_modes(parameters,&s2,Ptr,STATUS_OP,pcnt,true,true,false);
1665         }
1666 }
1667
1668
1669 void merge_mode2(char **parameters, int pcnt, userrec* user)
1670 {
1671         chanrec* Ptr;
1672         userrec* dest;
1673         int can_change,i;
1674         int direction = 1;
1675         char outpars[MAXBUF];
1676
1677         dest = Find(parameters[0]);
1678
1679         // fix: ChroNiCk found this - we cant use this as debug if its null!
1680         if (dest)
1681         {
1682                 log(DEBUG,"merge_mode on %s",dest->nick);
1683         }
1684
1685         if ((dest) && (pcnt > 1))
1686         {
1687                 log(DEBUG,"params > 1");
1688
1689                 char dmodes[MAXBUF];
1690                 strlcpy(dmodes,dest->modes,MAXBUF);
1691
1692                 strcpy(outpars,"+");
1693                 direction = 1;
1694
1695                 if ((parameters[1][0] == ':') && (strlen(parameters[1])>1))
1696                 {
1697                         // some stupid 3rd party things (such as services packages) put a colon on the mode list...
1698                         log(DEBUG,"Some muppet put a colon on the modelist! changed to '%s'",++parameters[1]);
1699                 }
1700                 if ((parameters[1][0] != '+') && (parameters[1][0] != '-'))
1701                 return;
1702
1703                 for (int i = 0; i < strlen(parameters[1]); i++)
1704                 {
1705                         if (parameters[1][i] == '+')
1706                         {
1707                                 if (direction != 1)
1708                                 {
1709                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1710                                         {
1711                                                 outpars[strlen(outpars)-1] = '+';
1712                                         }
1713                                         else
1714                                         {
1715                                                 strcat(outpars,"+");
1716                                         }
1717                                 }
1718                                 direction = 1;
1719                         }
1720                         else
1721                         if (parameters[1][i] == '-')
1722                         {
1723                                 if (direction != 0)
1724                                 {
1725                                         if ((outpars[strlen(outpars)-1] == '+') || (outpars[strlen(outpars)-1] == '-'))
1726                                         {
1727                                                 outpars[strlen(outpars)-1] = '-';
1728                                         }
1729                                         else
1730                                         {
1731                                                 strcat(outpars,"-");
1732                                         }
1733                                 }
1734                                 direction = 0;
1735                         }
1736                         else
1737                         {
1738                                 log(DEBUG,"begin mode processing entry");
1739                                 can_change = 1;
1740                                 if (can_change)
1741                                 {
1742                                         if (direction == 1)
1743                                         {
1744                                                 log(DEBUG,"umode %c being added",parameters[1][i]);
1745                                                 if ((!strchr(dmodes,parameters[1][i])) && (allowed_umode(parameters[1][i],user->modes,true)))
1746                                                 {
1747                                                         char umode = parameters[1][i];
1748                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1749                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1750                                                         {
1751                                                                 dmodes[strlen(dmodes)+1]='\0';
1752                                                                 dmodes[strlen(dmodes)] = parameters[1][i];
1753                                                                 outpars[strlen(outpars)+1]='\0';
1754                                                                 outpars[strlen(outpars)] = parameters[1][i];
1755                                                                 log(DEBUG,"OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1756                                                         }
1757                                                 }
1758                                         }
1759                                         else
1760                                         {
1761                                                 // can only remove a mode they already have
1762                                                 log(DEBUG,"umode %c being removed",parameters[1][i]);
1763                                                 if ((allowed_umode(parameters[1][i],user->modes,false)) && (strchr(dmodes,parameters[1][i])))
1764                                                 {
1765                                                         char umode = parameters[1][i];
1766                                                         log(DEBUG,"umode %c is an allowed umode",umode);
1767                                                         if ((process_module_umode(umode, NULL, dest, direction)) || (umode == 'i') || (umode == 's') || (umode == 'w') || (umode == 'o'))
1768                                                         {
1769                                                                 int q = 0;
1770                                                                 char temp[MAXBUF];
1771                                                                 char moo[MAXBUF];
1772
1773                                                                 outpars[strlen(outpars)+1]='\0';
1774                                                                 outpars[strlen(outpars)] = parameters[1][i];
1775
1776                                                                 strcpy(temp,"");
1777                                                                 for (q = 0; q < strlen(dmodes); q++)
1778                                                                 {
1779                                                                         if (dmodes[q] != parameters[1][i])
1780                                                                         {
1781                                                                                 moo[0] = dmodes[q];
1782                                                                                 moo[1] = '\0';
1783                                                                                 strlcat(temp,moo,MAXBUF);
1784                                                                         }
1785                                                                 }
1786                                                                 strlcpy(dmodes,temp,MAXBUF);
1787                                                         }
1788                                                 }
1789                                         }
1790                                 }
1791                         }
1792                 }
1793                 log(DEBUG,"DONE! OUTPARS='%s', DMODES='%s'",outpars,dmodes);
1794                 if (strlen(outpars))
1795                 {
1796                         char b[MAXBUF];
1797                         strcpy(b,"");
1798                         int z = 0;
1799                         int i = 0;
1800                         while (i < strlen (outpars))
1801                         {
1802                                 b[z++] = outpars[i++];
1803                                 b[z] = '\0';
1804                                 if (i<strlen(outpars)-1)
1805                                 {
1806                                         if (((outpars[i] == '-') || (outpars[i] == '+')) && ((outpars[i+1] == '-') || (outpars[i+1] == '+')))
1807                                         {
1808                                                 // someones playing silly buggers and trying
1809                                                 // to put a +- or -+ into the line...
1810                                                 i++;
1811                                         }
1812                                 }
1813                                 if (i == strlen(outpars)-1)
1814                                 {
1815                                         if ((outpars[i] == '-') || (outpars[i] == '+'))
1816                                         {
1817                                                 i++;
1818                                         }
1819                                 }
1820                         }
1821
1822                         z = strlen(b)-1;
1823                         if ((b[z] == '-') || (b[z] == '+'))
1824                                 b[z] == '\0';
1825
1826                         if ((!strcmp(b,"+")) || (!strcmp(b,"-")))
1827                                 return;
1828
1829                         // was sending 'b'
1830                         WriteTo(user,dest,"MODE %s :%s",dest->nick,b);
1831                         log(DEBUG,"Sent: :%s MODE %s",user->nick,b);
1832
1833                         if (strlen(dmodes)>MAXMODES)
1834                         {
1835                                 dmodes[MAXMODES-1] = '\0';
1836                         }
1837                         log(DEBUG,"Stripped mode line");
1838                         log(DEBUG,"Line dest is now %s",dmodes);
1839                         strlcpy(dest->modes,dmodes,MAXMODES);
1840
1841                 }
1842
1843                 return;
1844         }
1845
1846         Ptr = FindChan(parameters[0]);
1847         if (Ptr)
1848         {
1849                 log(DEBUG,"merge_mode2: found channel %s",Ptr->name);
1850                 if (Ptr)
1851                 {
1852                         if ((cstatus(user,Ptr) < STATUS_HOP) && (!is_uline(user->server)))
1853                         {
1854                                 return;
1855                         }
1856                         process_modes(parameters,user,Ptr,cstatus(user,Ptr),pcnt,false,false,true);
1857                 }
1858         }
1859 }
1860
1861