src/mode.cpp

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