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   memcpy(&newuser->ipaddress, &ipaddress, sizeof(ipaddress));
 112
 113   newuser->ipnode = refnode(iptree, &ipaddress, PATRICIA_MAXBITS);
 114   node_increment_usercount(newuser->ipnode);
 115
 116   newuser->timestamp=getnettime();
 117   newuser->shident=NULL;
 118   newuser->sethost=NULL;
 119   newuser->away=NULL;
 120   newuser->marker=0;
 121   memset(newuser->exts, 0, MAXNICKEXTS * sizeof(void *));
 122
 123   if (IsOper(newuser)) {
 124     newuser->opername = getsstring("-", ACCOUNTLEN);
 125   } else {
 126     newuser->opername = NULL;
 127   }
 128
 129   newuser->accountts=0;
 130   newuser->auth=NULL;
 131   newuser->authname=NULLAUTHNAME;
 132   if (IsAccount(newuser)) {
 133     newuser->accountts=newuser->timestamp;
 134     if (authid) {
 135       newuser->auth=findorcreateauthname(authid, authname);
 136       newuser->authname=newuser->auth->name;
 137       newuser->auth->usercount++;
 138       newuser->nextbyauthname=newuser->auth->nicks;
 139       newuser->auth->nicks=newuser;
 140       newuser->auth->flags=accountflags;
 141     } else {
 142       /*
 143          this is done for three reasons:
 144          1: so I don't have to change 500 pieces of code
 145          2: so services can be authed with special reserved ids
 146          3: saves space over the old authname per user method
 147        */
 148       newuser->authname=malloc(strlen(authname) + 1);
 149       strcpy(newuser->authname,authname);
 150     }
 151   }
 152
 153   newuser->cloak_count = 0;
 154   newuser->cloak_extra = NULL;
 155
 156   if (connected) {
 157     /* Check for nick collision */
 158     if ((np=getnickbynick(nickname))!=NULL) {
 159       /* Make sure we will win the collision */
 160       newuser->timestamp=(np->timestamp-1);
 161       killuser(NULL, np, "Nick collision");
 162     }
 163     sendnickmsg(newuser);
 164   }
 165
 166   if (handler!=NULL) {
 167     umhandlers[(currentlocalunum&MAXLOCALUSER)]=handler;
 168   }
 169
 170   *(gethandlebynumeric(newuser->numeric))=newuser;
 171   addnicktohash(newuser);
 172   triggerhook(HOOK_NICK_NEWNICK,newuser);
 173
 174   return newuser;
 175 }
 176
 177 /*
 178  * renamelocaluser:
 179  *  This function changes the name of a given local user
 180  */
 181
 182 int renamelocaluser(nick *np, char *newnick) {
 183   nick *np2;
 184   char ipbuf[25];
 185   time_t timestamp=getnettime();
 186   void *harg[2];
 187   char oldnick[NICKLEN+1];
 188
 189   if (!np)
 190     return -1;
 191
 192   if (strlen(newnick) > NICKLEN)
 193     return -1;
 194
 195   if (homeserver(np->numeric)!=mylongnum)
 196     return -1;
 197
 198   strncpy(oldnick,np->nick,NICKLEN);
 199   oldnick[NICKLEN]='\0';
 200   harg[0]=(void *)np;
 201   harg[1]=(void *)oldnick;
 202
 203   if ((np2=getnickbynick(newnick))) {
 204     if (np2==np) {
 205       /* Case only name change */
 206       strncpy(np->nick,newnick,NICKLEN);
 207       np->nick[NICKLEN]='\0';
 208       irc_send("%s N %s %jd",iptobase64(ipbuf, &(np->p_ipaddr), sizeof(ipbuf), 1),np->nick,(intmax_t)np->timestamp);
 209       triggerhook(HOOK_NICK_RENAME,harg);
 210       return 0;
 211     } else {
 212       /* Kill other user and drop through */
 213       timestamp=np2->timestamp-1;
 214       killuser(NULL, np2, "Nick collision");
 215     }
 216   }
 217
 218   np->timestamp=timestamp;
 219   removenickfromhash(np);
 220   strncpy(np->nick,newnick,NICKLEN);
 221   np->nick[NICKLEN]='\0';
 222   addnicktohash(np);
 223   irc_send("%s N %s %jd",longtonumeric(np->numeric,5),np->nick,(intmax_t)np->timestamp);
 224   triggerhook(HOOK_NICK_RENAME,harg);
 225
 226   return 0;
 227 }
 228
 229 /*
 230  * deregisterlocaluser:
 231  *  This function removes the given local user from the network
 232  */
 233
 234 int deregisterlocaluser(nick *np, char *reason) {
 235   long numeric;
 236   char reasonstr[512];
 237   void *harg[2];
 238
 239   if (np==NULL || (homeserver(np->numeric)!=mylongnum)) {
 240     /* Non-existent user, or user not on this server */
 241     return -1;
 242   }
 243
 244   if (reason==NULL || *reason=='\0') {
 245     sprintf(reasonstr,"Quit");
 246   } else {
 247     snprintf(reasonstr,510,"Quit: %s",reason);
 248   }
 249
 250   harg[0]=np;
 251   harg[1]=reasonstr;
 252
 253   triggerhook(HOOK_NICK_QUIT, harg);
 254
 255   numeric=np->numeric;
 256   umhandlers[np->numeric&MAXLOCALUSER]=NULL;
 257   deletenick(np);
 258   if (connected) {
 259     irc_send("%s Q :%s",longtonumeric(numeric,5),reasonstr);
 260   }
 261
 262   return 0;
 263 }
 264
 265 /*
 266  * hooklocaluserhandler:
 267  *  This function adds a new handler to the hook chain for a local user
 268  *  THIS RELIES ON MODULES BEING UNLOADED IN THE CORRECT ORDER.
 269  */
 270 UserMessageHandler hooklocaluserhandler(nick *np, UserMessageHandler newhandler) {
 271   UserMessageHandler oldhandler = NULL;
 272   if (np==NULL || (homeserver(np->numeric)!=mylongnum)) {
 273     /* Non-existent user, or user not on this server */
 274     return NULL;
 275   }
 276   oldhandler = umhandlers[np->numeric&MAXLOCALUSER];
 277   umhandlers[np->numeric&MAXLOCALUSER]=newhandler;
 278   return oldhandler;
 279 }
 280
 281 /*
 282  * sendnickmsg:
 283  *  Sends details of a given local nick to the network.
 284  */
 285
 286 void sendnickmsg(nick *np) {
 287   char numericbuf[6];
 288   char ipbuf[25], operbuf[ACCOUNTLEN + 5];
 289   char accountbuf[100];
 290
 291   strncpy(numericbuf,longtonumeric(np->numeric,5),5);
 292   numericbuf[5]='\0';
 293
 294   if(IsOper(np) && (serverlist[myhub].flags & SMODE_OPERNAME)) {
 295     snprintf(operbuf,sizeof(operbuf)," %s",np->opername?np->opername->content:"-");
 296   } else {
 297     operbuf[0] = '\0';
 298   }
 299
 300   accountbuf[0]='\0';
 301   if (IsAccount(np)) {
 302     if (np->auth) {
 303       if(np->auth->flags) {
 304         snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:%lu:%"PRIu64,np->authname,np->accountts,np->auth->userid,np->auth->flags);
 305       } else {
 306         snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:%lu",np->authname,np->accountts,np->auth->userid);
 307       }
 308     } else if(np->authname) {
 309       snprintf(accountbuf,sizeof(accountbuf)," %s:%ld:0",np->authname,np->accountts);
 310     }
 311   }
 312
 313   irc_send("%s N %s 1 %ld %s %s %s%s%s %s %s :%s",
 314     mynumeric->content,np->nick,np->timestamp,np->ident,np->host->name->content,
 315     printflags(np->umodes,umodeflags),operbuf,accountbuf,iptobase64(ipbuf,&(np->p_ipaddr),
 316     sizeof(ipbuf),1),numericbuf,np->realname->name->content);
 317 }
 318
 319 void sendnickburst(int hooknum, void *arg) {
 320   /* Send nick messages for all local users */
 321   nick **nh;
 322   int i;
 323
 324   nh=servernicks[numerictolong(mynumeric->content,2)];
 325   for (i=0;i<=MAXLOCALUSER;i++) {
 326     if (nh[i]!=NULL) {
 327       sendnickmsg(nh[i]);
 328     }
 329   }
 330 }
 331
 332 /* Check for a kill of a local user */
 333 void checklocalkill(int hooknum, void *arg) {
 334   void **args=arg;
 335   nick *target=args[0];
 336   char *reason=args[1];
 337   long numeric;
 338
 339   void *myargs[1];
 340   myargs[0]=reason;
 341
 342
 343   numeric=((nick *)target)->numeric;
 344
 345   if (homeserver(numeric)==mylongnum) {
 346     if (umhandlers[(numeric)&MAXLOCALUSER]!=NULL) {
 347       (umhandlers[(numeric)&MAXLOCALUSER])((nick *)target,LU_KILLED,myargs);
 348     }
 349   }
 350 }
 351
 352 int handleprivatemsgcmd(void *source, int cargc, char **cargv) {
 353   return handlemessageornotice(source, cargc, cargv, 0);
 354 }
 355
 356 int handleprivatenoticecmd(void *source, int cargc, char **cargv) {
 357   return handlemessageornotice(source, cargc, cargv, 1);
 358 }
 359
 360 /* Handle privmsg or notice command addressed to user */
 361 int handlemessageornotice(void *source, int cargc, char **cargv, int isnotice) {
 362   nick *sender;
 363   nick *target;
 364   char *ch;
 365   char targetnick[NICKLEN+1];
 366   int foundat;
 367   void *nargs[2];
 368   int i;
 369
 370   /* Should have target and message */
 371   if (cargc<2) {
 372     return CMD_OK;
 373   }
 374
 375   if (cargv[0][0]=='#' || cargv[0][0]=='+') {
 376     /* Channel message/notice */
 377     return CMD_OK;
 378   }
 379
 380   if ((sender=getnickbynumericstr((char *)source))==NULL) {
 381     Error("localuser",ERR_WARNING,"PRIVMSG from non existant user %s",(char *)source);
 382     return CMD_OK;
 383   }
 384
 385   /* Check for a "secure" message (foo@bar) */
 386   foundat=0;
 387   for (i=0,ch=cargv[0];(i<=NICKLEN) && (*ch);i++,ch++) {
 388     if (*ch=='@') {
 389       targetnick[i]='\0';
 390       foundat=1;
 391       break;
 392     } else {
 393       targetnick[i]=*ch;
 394     }
 395   }
 396
 397   if (!foundat) { /* Didn't find an @ sign, assume it's a numeric */
 398     if ((target=getnickbynumericstr(cargv[0]))==NULL) {
 399       Error("localuser",ERR_DEBUG,"Couldn't find target for %s",cargv[0]);
 400       return CMD_OK;
 401     }
 402   } else { /* Did find @, do a lookup by nick */
 403     if ((target=getnickbynick(targetnick))==NULL) {
 404       Error("localuser",ERR_DEBUG,"Couldn't find target for %s",cargv[0]);
 405       irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 406       return CMD_OK;
 407     }
 408   }
 409
 410   if (homeserver(target->numeric)!=mylongnum) {
 411     Error("localuser",ERR_WARNING,"Got message/notice for someone not on my server");
 412     irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 413     return CMD_OK;
 414   }
 415
 416   if (foundat && !IsService(target)) {
 417     Error("localuser",ERR_DEBUG,"Received secure message for %s, but user is not a service",cargv[0]);
 418     irc_send(":%s 401 %s %s :No such nick",myserver->content,sender->nick,cargv[0]);
 419     return CMD_OK;
 420   }
 421
 422   if (umhandlers[(target->numeric)&MAXLOCALUSER]==NULL) {
 423     /* No handler anyhow.. */
 424     return CMD_OK;
 425   }
 426
 427   /* Dispatch the message. */
 428   nargs[0]=(void *)sender;
 429   nargs[1]=(void *)cargv[1];
 430   (umhandlers[(target->numeric)&MAXLOCALUSER])(target,isnotice?LU_PRIVNOTICE:(foundat?LU_SECUREMSG:LU_PRIVMSG),nargs);
 431
 432   return CMD_OK;
 433 }
 434
 435 /* Send message to user */
 436 void sendmessagetouser(nick *source, nick *target, char *format, ... ) {
 437   char buf[BUFSIZE];
 438   char senderstr[6];
 439   va_list va;
 440
 441   longtonumeric2(source->numeric,5,senderstr);
 442
 443   va_start(va,format);
 444   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 445   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 446    * to receive this.. */
 447
 448   vsnprintf(buf,BUFSIZE-17,format,va);
 449   va_end(va);
 450
 451   if (homeserver(target->numeric)!=mylongnum)
 452     irc_send("%s P %s :%s",senderstr,longtonumeric(target->numeric,5),buf);
 453 }
 454
 455 /* Send messageto server, we don't check, but noones going to want to put a server pointer in anyway... */
 456 void sendsecuremessagetouser(nick *source, nick *target, char *servername, char *format, ... ) {
 457   char buf[BUFSIZE];
 458   char senderstr[6];
 459   va_list va;
 460
 461   longtonumeric2(source->numeric,5,senderstr);
 462
 463   va_start(va,format);
 464   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 465   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 466    * to receive this.. */
 467
 468   vsnprintf(buf,BUFSIZE-17,format,va);
 469   va_end(va);
 470
 471   if (homeserver(target->numeric)!=mylongnum)
 472     irc_send("%s P %s@%s :%s",senderstr,target->nick,servername,buf);
 473 }
 474
 475 /* Send notice to user */
 476 void sendnoticetouser(nick *source, nick *target, char *format, ... ) {
 477   char buf[BUFSIZE];
 478   char senderstr[6];
 479   va_list va;
 480
 481   longtonumeric2(source->numeric,5,senderstr);
 482
 483   va_start(va,format);
 484   /* 10 bytes of numeric, 5 bytes of fixed format + terminator = 17 bytes */
 485   /* So max sendable message is 495 bytes.  Of course, a client won't be able
 486    * to receive this.. */
 487
 488   vsnprintf(buf,BUFSIZE-17,format,va);
 489   va_end(va);
 490
 491   if (homeserver(target->numeric)!=mylongnum)
 492     irc_send("%s O %s :%s",senderstr,longtonumeric(target->numeric,5),buf);
 493 }
 494
 495 /* Kill user */
 496 void killuser(nick *source, nick *target, char *format, ... ) {
 497   char buf[BUFSIZE];
 498   va_list va;
 499   pendingkill *pk;
 500
 501   va_start(va, format);
 502   vsnprintf(buf, BUFSIZE-17, format, va);
 503   va_end (va);
 504
 505   if (hookqueuelength) {
 506     for (pk = pendingkilllist; pk; pk = pk->next)
 507       if (pk->target == target)
 508         return;
 509
 510     Error("localuser", ERR_DEBUG, "Adding pending kill for %s", target->nick);
 511     pk = (pendingkill *)malloc(sizeof(pendingkill));
 512     pk->source = source;
 513     pk->target = target;
 514     pk->reason = getsstring(buf, BUFSIZE);
 515     pk->next = pendingkilllist;
 516     pendingkilllist = pk;
 517   } else {
 518     _killuser(source, target, buf);
 519   }
 520 }
 521
 522 void sethostuser(nick *target, char *ident, char *host) {
 523   irc_send("%s SH %s %s %s", mynumeric->content, longtonumeric(target->numeric, 5), ident, host);
 524 }
 525
 526 void _killuser(nick *source, nick *target, char *reason) {
 527   char senderstr[6];
 528   char sourcestring[HOSTLEN+NICKLEN+3];
 529   char reasonstr[512];
 530   void *args[2];
 531
 532   if (!source) {
 533     /* If we have a null nick, use the server.. */
 534     strcpy(senderstr, mynumeric->content);
 535     strcpy(sourcestring, myserver->content);
 536   } else {
 537     strcpy(senderstr, longtonumeric(source->numeric,5));
 538     sprintf(sourcestring,"%s!%s",source->host->name->content, source->nick);
 539   }
 540
 541   snprintf(reasonstr,512,"%s (%s)",sourcestring,reason);
 542   reasonstr[511]='\0';
 543
 544   irc_send("%s D %s :%s",senderstr,longtonumeric(target->numeric,5),reasonstr);
 545
 546   args[0]=target;
 547   args[1]=reasonstr;
 548   triggerhook(HOOK_NICK_KILL, args);
 549
 550   deletenick(target);
 551 }
 552
 553 void clearpendingkills(int hooknum, void *arg) {
 554   pendingkill *pk;
 555
 556   pk = pendingkilllist;
 557   while (pk) {
 558     pendingkilllist = pk->next;
 559
 560     if (pk->target) {
 561       Error("localuser", ERR_DEBUG, "Processing pending kill for %s", pk->target->nick);
 562       _killuser(pk->source, pk->target, pk->reason->content);
 563     }
 564
 565     freesstring(pk->reason);
 566     free(pk);
 567     pk = pendingkilllist;
 568   }
 569 }
 570
 571 void checkpendingkills(int hooknum, void *arg) {
 572   nick *np = (nick *)arg;
 573   pendingkill *pk;
 574
 575   for (pk=pendingkilllist; pk; pk = pk->next) {
 576     if (pk->source == np) {
 577       Error("localuser", ERR_INFO, "Pending kill source %s got deleted, NULL'ing source for pending kill", np->nick);
 578       pk->source = NULL;
 579     }
 580     if (pk->target == np) {
 581       Error("localuser", ERR_INFO, "Pending kill target %s got deleted, NULL'ing target for pending kill", np->nick);
 582       pk->target = NULL;
 583     }
 584   }
 585 }
 586
 587 void sendaccountmessage(nick *np) {
 588   if (connected && IsAccount(np)) {
 589     if (np->auth) {
 590       if (np->auth->flags) {
 591         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);
 592       } else {
 593         irc_send("%s AC %s %s %ld %lu",mynumeric->content, longtonumeric(np->numeric,5), np->authname, np->accountts, np->auth->userid);
 594       }
 595     } else {
 596       irc_send("%s AC %s %s %ld 0",mynumeric->content, longtonumeric(np->numeric,5), np->authname, np->accountts);
 597     }
 598   }
 599 }
 600
 601 /* Auth user, don't use to set flags after authing */
 602 void localusersetaccount(nick *np, char *accname, unsigned long accid, u_int64_t accountflags, time_t authTS) {
 603   if (IsAccount(np)) {
 604     Error("localuser",ERR_WARNING,"Tried to set account on user %s already authed", np->nick);
 605     return;
 606   }
 607
 608   SetAccount(np);
 609   np->accountts=authTS?authTS:getnettime();
 610
 611   if (accid) {
 612     np->auth=findorcreateauthname(accid, accname);
 613     np->auth->usercount++;
 614     np->authname=np->auth->name;
 615     np->nextbyauthname=np->auth->nicks;
 616     np->auth->nicks=np;
 617     np->auth->flags=accountflags;
 618   } else {
 619     np->auth=NULL;
 620     np->authname=malloc(strlen(accname) + 1);
 621     strcpy(np->authname,accname);
 622   }
 623
 624   sendaccountmessage(np);
 625
 626   triggerhook(HOOK_NICK_ACCOUNT, np);
 627 }
 628
 629 void localusersetumodes(nick *np, flag_t newmodes) {
 630   if (connected) {
 631     irc_send("%s M %s %s", longtonumeric(np->numeric,5), np->nick, printflagdiff(np->umodes, newmodes, umodeflags));
 632   }
 633
 634   np->umodes = newmodes;
 635 }
 636
 637 void localusersetaccountflags(authname *anp, u_int64_t accountflags) {
 638   void *arg[2];
 639   nick *np;
 640   u_int64_t oldflags = anp->flags;
 641
 642   arg[0] = anp;
 643   arg[1] = &oldflags;
 644   anp->flags = accountflags;
 645
 646   for(np=anp->nicks;np;np=np->nextbyauthname)
 647     sendaccountmessage(np);
 648
 649   triggerhook(HOOK_AUTH_FLAGSUPDATED, arg);
 650 }
 651
 652 void localuseraddcloaktarget(nick *np, nick *target) {
 653   char snumeric[10], tnumeric[10];
 654
 655   strcpy(snumeric, longtonumeric(np->numeric,5));
 656   strcpy(tnumeric, longtonumeric(target->numeric,5));
 657
 658   irc_send("%s CA %s", snumeric, tnumeric);
 659
 660   addcloaktarget(np, target);
 661 }
 662
 663 void localuserclearcloaktargets(nick *np) {
 664   irc_send("%s CU", longtonumeric(np->numeric,5));
 665   clearcloaktargets(np);
 666 }
 667