localuser/localuser.c

   1 /* localuser.c */
   2
   3 #include "../nick/nick.h"
   4 #include "../lib/base64.h"
   5 #include "../lib/sstring.h"
   6 #include "../irc/irc.h"
   7 #include "../irc/irc_config.h"
   8 #include "../core/hooks.h"
   9 #include "../core/error.h"
  10 #include "../lib/version.h"
  11 #include "localuser.h"
  12
  13 #include <string.h>
  14 #include <stdarg.h>
  15 #include <stdio.h>
  16 #include <inttypes.h>
  17
  18 MODULE_VERSION("");
  19
  20 int currentlocalunum;
  21 UserMessageHandler umhandlers[MAXLOCALUSER+1];
  22
  23 typedef struct pendingkill {
  24   nick *source, *target;
  25   sstring *reason;
  26   struct pendingkill *next;
  27 } pendingkill;
  28
  29 pendingkill *pendingkilllist;
  30
  31 void checklocalkill(int hooknum, void *nick);
  32 void clearpendingkills(int hooknum, void *arg);
  33 void checkpendingkills(int hooknum, void *arg);
  34 void _killuser(nick *source, nick *target, char *reason);
  35
  36 void _init() {
  37   int i;
  38
  39   for (i=0;i<=MAXLOCALUSER;i++) {
  40     umhandlers[i]=NULL;
  41   }
  42   currentlocalunum=1;
  43   pendingkilllist=NULL;
  44   registerhook(HOOK_IRC_SENDBURSTNICKS,&sendnickburst);
  45   registerhook(HOOK_NICK_KILL,&checklocalkill);
  46   registerhook(HOOK_NICK_LOSTNICK,&checkpendingkills); /* CHECK ME -> should this hook KILL or LOSTNICK or BOTH */
  47   registerhook(HOOK_CORE_ENDOFHOOKSQUEUE,&clearpendingkills);
  48   registerserverhandler("P",&handleprivatemsgcmd,2);
  49   registerserverhandler("O",&handleprivatenoticecmd, 2);
  50 }
  51
  52 void _fini() {
  53   pendingkill *pk;
  54
  55   for (pk=pendingkilllist;pk;pk=pendingkilllist) {
  56     pendingkilllist = pk->next;
  57     freesstring(pk->reason);
  58     free(pk);
  59   }
  60
  61   deregisterhook(HOOK_IRC_SENDBURSTNICKS,&sendnickburst);
  62   deregisterhook(HOOK_NICK_KILL,&checklocalkill);
  63   deregisterhook(HOOK_NICK_LOSTNICK,&checkpendingkills); /* CHECK ME -> should this hook KILL or LOSTNICK or BOTH */
  64   deregisterhook(HOOK_CORE_ENDOFHOOKSQUEUE,&clearpendingkills);
  65
  66   deregisterserverhandler("P",&handleprivatemsgcmd);
  67   deregisterserverhandler("O",&handleprivatenoticecmd);
  68 }
  69
  70 /*
  71  * registerlocaluserflags:
  72  *  This function creates a local user, and broadcasts it's existence to the net (if connected).
  73  */
  74
  75 nick *registerlocaluserflags(char *nickname, char *ident, char *host, char *realname, char *authname, unsigned long authid, flag_t accountflags, flag_t umodes, UserMessageHandler handler) {
  76   int i;
  77   nick *newuser,*np;
  78   struct irc_in_addr ipaddress;
  79
  80   i=0;
  81   currentlocalunum=(currentlocalunum+1)%262142;
  82   while (servernicks[numerictolong(mynumeric->content,2)][currentlocalunum&MAXLOCALUSER]!=NULL) {
  83     /* Numeric 262143 on our server is used for "nouser" by the channels module, so cannot be allocated */
  84     currentlocalunum=(currentlocalunum+1)%262142;
  85     if (++i>MAXLOCALUSER) {
  86       return NULL;
  87     }
  88   }
  89
  90   /* This code is very similar to stuff in nick.c... */
  91   newuser=newnick();
  92   newuser->numeric=(numerictolong(mynumeric->content,2)<<18)|(currentlocalunum);
  93   strncpy(newuser->nick,nickname,NICKLEN);
  94   newuser->nick[NICKLEN]='\0';
  95   strncpy(newuser->ident,ident,USERLEN);
  96   newuser->ident[USERLEN]='\0';
  97   newuser->host=findorcreatehost(host);
  98   newuser->realname=findorcreaterealname(realname);
  99   newuser->nextbyhost=newuser->host->nicks;
 100   newuser->host->nicks=newuser;
 101   newuser->nextbyrealname=newuser->realname->nicks;
 102   newuser->realname->nicks=newuser;
 103   newuser->umodes=umodes;
 104
 105   memset(&ipaddress, 0, sizeof(ipaddress));
 106   ((unsigned short *)(ipaddress.in6_16))[5] = 65535;
 107   ((unsigned short *)(ipaddress.in6_16))[6] = 127;
 108   ((unsigned char *)(ipaddress.in6_16))[14] = 1;
 109   ((unsigned char *)(ipaddress.in6_16))[15] = (currentlocalunum%253)+1;
 110
 111   newuser->ipnode = refnode(iptree, &ipaddress, PATRICIA_MAXBITS);
 112   node_increment_usercount(newuser->ipnode);
 113
 114   newuser->timestamp=getnettime();
 115   newuser->shident=NULL;
 116   newuser->sethost=NULL;
 117   newuser->away=NULL;
 118   newuser->marker=0;
 119   memset(newuser->exts, 0, MAXNICKEXTS * sizeof(void *));
 120
 121   if (IsOper(newuser)) {
 122     newuser->opername = getsstring("-", ACCOUNTLEN);
 123   } else {
 124     newuser->opername = NULL;
 125   }
 126
 127   newuser->accountts=0;
 128   newuser->auth=NULL;
 129   newuser->authname=NULLAUTHNAME;
 130   if (IsAccount(newuser)) {
 131     newuser->accountts=newuser->timestamp;
 132     if (authid) {
 133       newuser->auth=findorcreateauthname(authid, authname);
 134       newuser->authname=newuser->auth->name;
 135       newuser->auth->usercount++;
 136       newuser->nextbyauthname=newuser->auth->nicks;
 137       newuser->auth->nicks=newuser;
 138       newuser->auth->flags=accountflags;
 139     } else {
 140       /*
 141          this is done for three reasons:
 142          1: so I don't have to change 500 pieces of code
 143          2: so services can be authed with special reserved ids
 144          3: saves space over the old authname per user method
 145        */
 146       newuser->authname=malloc(strlen(authname) + 1);
 147       strcpy(newuser->authname,authname);
 148     }
 149   }
 150
 151   newuser->cloak_count = 0;
 152   newuser->cloak_extra = NULL;
 153
 154   if (connected) {
 155     /* Check for nick collision */
 156     if ((np=getnickbynick(nickname))!=NULL) {
 157       /* Make sure we will win the collision */
 158       newuser->timestamp=(np->timestamp-1);
 159       killuser(NULL, np, "Nick collision");
 160     }
 161     sendnickmsg(newuser);
 162   }
 163
 164   if (handler!=NULL) {
 165     umhandlers[(currentlocalunum&MAXLOCALUSER)]=handler;
 166   }
 167
 168   *(gethandlebynumeric(newuser->numeric))=newuser;
 169   addnicktohash(newuser);
 170   triggerhook(HOOK_NICK_NEWNICK,newuser);
 171
 172   return newuser;
 173 }
 174
 175 /*
 176  * renamelocaluser:
 177  *  This function changes the name of a given local user
 178  */
 179
 180 int renamelocaluser(nick *np, char *newnick) {
 181   nick *np2;
 182   char ipbuf[25];
 183   time_t timestamp=getnettime();
 184   void *harg[2];
 185   char oldnick[NICKLEN+1];
 186
 187   if (!np)
 188     return -1;
 189
 190   if (strlen(newnick) > NICKLEN)
 191     return -1;
 192
 193   if (homeserver(np->numeric)!=mylongnum)
 194     return -1;
 195
 196   strncpy(oldnick,np->nick,NICKLEN);
 197   oldnick[NICKLEN]='\0';
 198   harg[0]=(void *)np;
 199   harg[1]=(void *)oldnick;
 200
 201   if ((np2=getnickbynick(newnick))) {
 202     if (np2==np) {
 203       /* Case only name change */
 204       strncpy(np->nick,newnick,NICKLEN);
 205       np->nick[NICKLEN]='\0';
 206       irc_send("%s N %s %jd",iptobase64(ipbuf, &(np->p_ipaddr), sizeof(ipbuf), 1),np->nick,(intmax_t)np->timestamp);
 207       triggerhook(HOOK_NICK_RENAME,harg);
 208       return 0;
 209     } else {
 210       /* Kill other user and drop through */
 211       timestamp=np2->timestamp-1;
 212       killuser(NULL, np2, "Nick collision");
 213     }
 214   }
 215
 216   np->timestamp=timestamp;
 217   removenickfromhash(np);
 218   strncpy(np->nick,newnick,NICKLEN);
 219   np->nick[NICKLEN]='\0';
 220   addnicktohash(np);
 221   irc_send("%s N %s %jd",longtonumeric(np->numeric,5),np->nick,(intmax_t)np->timestamp);
 222   triggerhook(HOOK_NICK_RENAME,harg);
 223
 224   return 0;
 225 }
 226
 227 /*
 228  * deregisterlocaluser:
 229  *  This function removes the given local user from the network
 230  */
 231
 232 int deregisterlocaluser(nick *np, char *reason) {
 233   long numeric;
 234   char reasonstr[512];
 235   void *harg[2];
 236
 237   if (np==NULL || (homeserver(np->numeric)!=mylongnum)) {
 238     /* Non-existent user, or user not on this server */
 239     return -1;
 240   }
 241
 242   if (reason==NULL || *reason=='\0') {
 243     sprintf(reasonstr,"Quit");
 244   } else {
 245     snprintf(reasonstr,510,"Quit: %s",reason);
 246   }
 247
 248   harg[0]=np;
 249   harg[1]=reasonstr;
 250
 251   triggerhook(HOOK_NICK_QUIT, harg);
 252
 253   numeric=np->numeric;
 254   umhandlers[np->numeric&MAXLOCALUSER]=NULL;
 255   deletenick(np);
 256   if (connected) {
 257     irc_send("%s Q :%s",longtonumeric(numeric,5),reasonstr);
 258   }
 259
 260   return 0;
 261 }
 262
 263 /*
 264  * hooklocaluserhandler:
 265  *  This function adds a new handler to the hook chain for a local user
 266  *  THIS RELIES ON MODULES BEING UNLOADED IN THE CORRECT ORDER.
 267  */
 268 UserMessageHandler hooklocaluserhandler(nick *np, UserMessageHandler newhandler) {
 269   UserMessageHandler oldhandler = NULL;
 270   if (np==NULL || (homeserver(np->numeric)!=mylongnum)) {
 271     /* Non-existent user, or user not on this server */
 272     return NULL;
 273   }
 274   oldhandler = umhandlers[np->numeric&MAXLOCALUSER];
 275   umhandlers[np->numeric&MAXLOCALUSER]=newhandler;
 276   return oldhandler;
 277 }
 278
 279 /*
 280  * sendnickmsg:
 281  *  Sends details of a given local nick to the network.
 282  */
 283
 284 void sendnickmsg(nick *np) {
 285   char numericbuf[6];
 286   char ipbuf[25], operbuf[ACCOUNTLEN + 5];
 287   char accountbuf[100];
 288
 289   strncpy(numericbuf,longtonumeric(np->numeric,5),5);
 290   numericbuf[5]='\0';
 291
 292   if(IsOper(np) && (serverlist[myhub].flags & SMODE_OPERNAME)) {
 293     snprintf(operbuf,sizeof(operbuf)," %s",np->opername?np->opername->content:"-");
 294   } else {
 295     operbuf[0] = '\0';
 296   }
 297
 298   accountbuf[0]='\0';
 299   if (IsAccount(np)) {
 300     if (np->auth) {
 301       if(np->auth->flags) {
 302         snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:%lu:%"PRIu64,np->authname,np->accountts,np->auth->userid,np->auth->flags);
 303       } else {
 304         snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:%lu",np->authname,np->accountts,np->auth->userid);
 305       }
 306     } else if(np->authname) {
 307       snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:0",np->authname,np->accountts);
 308     }
 309   }
 310
 311   irc_send("%s N %s 1 %ld %s %s %s%s%s %s %s :%s",
 312     mynumeric->content,np->nick,np->timestamp,np->ident,np->host->name->content,
 313     printflags(np->umodes,umodeflags),operbuf,accountbuf,iptobase64(ipbuf,&(np->p_ipaddr),
 314     sizeof(ipbuf),1),numericbuf,np->realname->name->content);
 315 }
 316
 317 void sendnickburst(int hooknum, void *arg) {
 318   /* Send nick messages for all local users */
 319   nick **nh;
 320   int i;
 321
 322   nh=servernicks[numerictolong(mynumeric->content,2)];
 323   for (i=0;i<=MAXLOCALUSER;i++) {
 324     if (nh[i]!=NULL) {
 325       sendnickmsg(nh[i]);
 326     }
 327   }
 328 }
 329
 330 /* Check for a kill of a local user */
 331 void checklocalkill(int hooknum, void *arg) {
 332   void **args=arg;
 333   nick *target=args[0];
 334   char *reason=args[1];
 335   long numeric;
 336
 337   void *myargs[1];
 338   myargs[0]=reason;
 339
 340
 341   numeric=((nick *)target)->numeric;
 342
 343   if (homeserver(numeric)==mylongnum) {
 344     if (umhandlers[(numeric)&MAXLOCALUSER]!=NULL) {
 345       (umhandlers[(numeric)&MAXLOCALUSER])((nick *)target,LU_KILLED,myargs);
 346     }
 347   }
 348 }
 349
 350 int handleprivatemsgcmd(void *source, int cargc, char **cargv) {
 351   return handlemessageornotice(source, cargc, cargv, 0);
 352 }
 353
 354 int handleprivatenoticecmd(void *source, int cargc, char **cargv) {
 355   return handlemessageornotice(source, cargc, cargv, 1);
 356 }
 357
 358 /* Handle privmsg or notice command addressed to user */
 359 int handlemessageornotice(void *source, int cargc, char **cargv, int isnotice) {
 360   nick *sender;
 361   nick *target;
 362   char *ch;
 363   char targetnick[NICKLEN+1];
 364   int foundat;
 365   void *nargs[2];
 366   int i;
 367
 368   /* Should have target and message */
 369   if (cargc<2) {
 370     return CMD_OK;
 371   }
 372
 373   if (cargv[0][0]=='#' || cargv[0][0]=='+') {
 374     /* Channel message/notice */
 375     return CMD_OK;
 376   }
 377
 378   if ((sender=getnickbynumericstr((char *)source))==NULL) {
 379     Error("localuser",ERR_WARNING,"PRIVMSG from non existant user %s",(char *)source);
 380     return CMD_OK;
 381   }
 382
 383   /* Check for a "secure" message (foo@bar) */
 384   foundat=0;
 385   for (i=0,ch=cargv[0];(i<=NICKLEN) && (*ch);i++,ch++) {
 386     if (*ch=='@') {
 387       targetnick[i]='\0';
 388       foundat=1;
 389       break;
 390     } else {
 391       targetnick[i]=*ch;
 392     }
 393   }
 394
 395   if (!foundat) { /* Didn't find an @ sign, assume it's a numeric */
 396     if ((target=getnickbynumericstr(cargv[0]))==NULL) {
 397       Error("localuser",ERR_DEBUG,"Couldn't find target for %s",cargv[0]);
 398       return CMD_OK;
 399     }
 400   } else { /* Did find @, do a lookup by nick */
 401     if ((target=getnickbynick(targetnick))==NULL) {
 402       Error("localuser",ERR_DEBUG,"Couldn't find target for %s",cargv[0]);
 403       irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 404       return CMD_OK;
 405     }
 406   }
 407
 408   if (homeserver(target->numeric)!=mylongnum) {
 409     Error("localuser",ERR_WARNING,"Got message/notice for someone not on my server");
 410     irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 411     return CMD_OK;
 412   }
 413
 414   if (foundat && !IsService(target)) {
 415     Error("localuser",ERR_DEBUG,"Received secure message for %s, but user is not a service",cargv[0]);
 416     irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 417     return CMD_OK;
 418   }
 419
 420   if (umhandlers[(target->numeric)&MAXLOCALUSER]==NULL) {
 421     /* No handler anyhow.. */
 422     return CMD_OK;
 423   }
 424
 425   /* Dispatch the message. */
 426   nargs[0]=(void *)sender;
 427   nargs[1]=(void *)cargv[1];
 428   (umhandlers[(target->numeric)&MAXLOCALUSER])(target,isnotice?LU_PRIVNOTICE:(foundat?LU_SECUREMSG:LU_PRIVMSG),nargs);
 429
 430   return CMD_OK;
 431 }
 432
 433 /* Send message to user */
 434 void sendmessagetouser(nick *source, nick *target, char *format, ... ) {
 435   char buf[BUFSIZE];
 436   char senderstr[6];
 437   va_list va;
 438
 439   longtonumeric2(source->numeric,5,senderstr);
 440
 441   va_start(va,format);
 442   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 443   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 444    * to receive this.. */
 445
 446   vsnprintf(buf,BUFSIZE-17,format,va);
 447   va_end(va);
 448
 449   if (homeserver(target->numeric)!=mylongnum)
 450     irc_send("%s P %s :%s",senderstr,longtonumeric(target->numeric,5),buf);
 451 }
 452
 453 /* Send messageto server, we don't check, but noones going to want to put a server pointer in anyway... */
 454 void sendsecuremessagetouser(nick *source, nick *target, char *servername, char *format, ... ) {
 455   char buf[BUFSIZE];
 456   char senderstr[6];
 457   va_list va;
 458
 459   longtonumeric2(source->numeric,5,senderstr);
 460
 461   va_start(va,format);
 462   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 463   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 464    * to receive this.. */
 465
 466   vsnprintf(buf,BUFSIZE-17,format,va);
 467   va_end(va);
 468
 469   if (homeserver(target->numeric)!=mylongnum)
 470     irc_send("%s P %s@%s :%s",senderstr,target->nick,servername,buf);
 471 }
 472
 473 /* Send notice to user */
 474 void sendnoticetouser(nick *source, nick *target, char *format, ... ) {
 475   char buf[BUFSIZE];
 476   char senderstr[6];
 477   va_list va;
 478
 479   longtonumeric2(source->numeric,5,senderstr);
 480
 481   va_start(va,format);
 482   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 483   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 484    * to receive this.. */
 485
 486   vsnprintf(buf,BUFSIZE-17,format,va);
 487   va_end(va);
 488
 489   if (homeserver(target->numeric)!=mylongnum)
 490     irc_send("%s O %s :%s",senderstr,longtonumeric(target->numeric,5),buf);
 491 }
 492
 493 /* Kill user */
 494 void killuser(nick *source, nick *target, char *format, ... ) {
 495   char buf[BUFSIZE];
 496   va_list va;
 497   pendingkill *pk;
 498
 499   va_start(va, format);
 500   vsnprintf(buf, BUFSIZE-17, format, va);
 501   va_end (va);
 502
 503   if (hookqueuelength) {
 504     for (pk = pendingkilllist; pk; pk = pk->next)
 505       if (pk->target == target)
 506         return;
 507
 508     Error("localuser", ERR_DEBUG, "Adding pending kill for %s", target->nick);
 509     pk = (pendingkill *)malloc(sizeof(pendingkill));
 510     pk->source = source;
 511     pk->target = target;
 512     pk->reason = getsstring(buf, BUFSIZE);
 513     pk->next = pendingkilllist;
 514     pendingkilllist = pk;
 515   } else {
 516     _killuser(source, target, buf);
 517   }
 518 }
 519
 520 void sethostuser(nick *target, char *ident, char *host) {
 521   irc_send("%s SH %s %s %s", mynumeric->content, longtonumeric(target->numeric, 5), ident, host);
 522 }
 523
 524 void _killuser(nick *source, nick *target, char *reason) {
 525   char senderstr[6];
 526   char sourcestring[HOSTLEN+NICKLEN+3];
 527   char reasonstr[512];
 528   void *args[2];
 529
 530   if (!source) {
 531     /* If we have a null nick, use the server.. */
 532     strcpy(senderstr, mynumeric->content);
 533     strcpy(sourcestring, myserver->content);
 534   } else {
 535     strcpy(senderstr, longtonumeric(source->numeric,5));
 536     sprintf(sourcestring,"%s!%s",source->host->name->content, source->nick);
 537   }
 538
 539   snprintf(reasonstr,512,"%s (%s)",sourcestring,reason);
 540   reasonstr[511]='\0';
 541
 542   irc_send("%s D %s :%s",senderstr,longtonumeric(target->numeric,5),reasonstr);
 543
 544   args[0]=target;
 545   args[1]=reasonstr;
 546   triggerhook(HOOK_NICK_KILL, args);
 547
 548   deletenick(target);
 549 }
 550
 551 void clearpendingkills(int hooknum, void *arg) {
 552   pendingkill *pk;
 553
 554   pk = pendingkilllist;
 555   while (pk) {
 556     pendingkilllist = pk->next;
 557
 558     if (pk->target) {
 559       Error("localuser", ERR_DEBUG, "Processing pending kill for %s", pk->target->nick);
 560       _killuser(pk->source, pk->target, pk->reason->content);
 561     }
 562
 563     freesstring(pk->reason);
 564     free(pk);
 565     pk = pendingkilllist;
 566   }
 567 }
 568
 569 void checkpendingkills(int hooknum, void *arg) {
 570   nick *np = (nick *)arg;
 571   pendingkill *pk;
 572
 573   for (pk=pendingkilllist; pk; pk = pk->next) {
 574     if (pk->source == np) {
 575       Error("localuser", ERR_INFO, "Pending kill source %s got deleted, NULL'ing source for pending kill", np->nick);
 576       pk->source = NULL;
 577     }
 578     if (pk->target == np) {
 579       Error("localuser", ERR_INFO, "Pending kill target %s got deleted, NULL'ing target for pending kill", np->nick);
 580       pk->target = NULL;
 581     }
 582   }
 583 }
 584
 585 void sendaccountmessage(nick *np) {
 586   if (connected && IsAccount(np)) {
 587     if (np->auth) {
 588       if (np->auth->flags) {
 589         irc_send("%s AC %s %s %ld %lu %"PRIu64,mynumeric->content, longtonumeric(np->numeric,5), np->authname, np->accountts, np->auth->userid, np->auth->flags);
 590       } else {
 591         irc_send("%s AC %s %s %ld %lu",mynumeric->content, longtonumeric(np->numeric,5), np->authname, np->accountts, np->auth->userid);
 592       }
 593     } else {
 594       irc_send("%s AC %s %s %ld 0",mynumeric->content, longtonumeric(np->numeric,5), np->authname, np->accountts);
 595     }
 596   }
 597 }
 598
 599 /* Auth user, don't use to set flags after authing */
 600 void localusersetaccount(nick *np, char *accname, unsigned long accid, u_int64_t accountflags, time_t authTS) {
 601   if (IsAccount(np)) {
 602     Error("localuser",ERR_WARNING,"Tried to set account on user %s already authed", np->nick);
 603     return;
 604   }
 605
 606   SetAccount(np);
 607   np->accountts=authTS?authTS:getnettime();
 608
 609   if (accid) {
 610     np->auth=findorcreateauthname(accid, accname);
 611     np->auth->usercount++;
 612     np->authname=np->auth->name;
 613     np->nextbyauthname=np->auth->nicks;
 614     np->auth->nicks=np;
 615     np->auth->flags=accountflags;
 616   } else {
 617     np->auth=NULL;
 618     np->authname=malloc(strlen(accname) + 1);
 619     strcpy(np->authname,accname);
 620   }
 621
 622   sendaccountmessage(np);
 623
 624   triggerhook(HOOK_NICK_ACCOUNT, np);
 625 }
 626
 627 void localusersetumodes(nick *np, flag_t newmodes) {
 628   if (connected) {
 629     irc_send("%s M %s %s", longtonumeric(np->numeric,5), np->nick, printflagdiff(np->umodes, newmodes, umodeflags));
 630   }
 631
 632   np->umodes = newmodes;
 633 }
 634
 635 void localusersetaccountflags(authname *anp, u_int64_t accountflags) {
 636   void *arg[2];
 637   nick *np;
 638   u_int64_t oldflags = anp->flags;
 639
 640   arg[0] = anp;
 641   arg[1] = &oldflags;
 642   anp->flags = accountflags;
 643
 644   for(np=anp->nicks;np;np=np->nextbyauthname)
 645     sendaccountmessage(np);
 646
 647   triggerhook(HOOK_AUTH_FLAGSUPDATED, arg);
 648 }
 649
 650 void localuseraddcloaktarget(nick *np, nick *target) {
 651   char snumeric[10], tnumeric[10];
 652
 653   strcpy(snumeric, longtonumeric(np->numeric,5));
 654   strcpy(tnumeric, longtonumeric(target->numeric,5));
 655
 656   irc_send("%s CA %s", snumeric, tnumeric);
 657
 658   addcloaktarget(np, target);
 659 }
 660
 661 void localuserclearcloaktargets(nick *np) {
 662   irc_send("%s CU", longtonumeric(np->numeric,5));
 663   clearcloaktargets(np);
 664 }
 665