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