modules/m_xline.c

   1 /* modules/m_xline.c
   2  *
   3  *  Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
   4  *  Copyright (C) 2002-2005 ircd-ratbox development team
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met:
   9  *
  10  * 1.Redistributions of source code must retain the above copyright notice,
  11  *   this list of conditions and the following disclaimer.
  12  * 2.Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in the
  14  *   documentation and/or other materials provided with the distribution.
  15  * 3.The name of the author may not be used to endorse or promote products
  16  *   derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * $Id: m_xline.c 3161 2007-01-25 07:23:01Z nenolod $
  31  */
  32
  33 #include "stdinc.h"
  34 #include "send.h"
  35 #include "channel.h"
  36 #include "client.h"
  37 #include "common.h"
  38 #include "config.h"
  39 #include "class.h"
  40 #include "ircd.h"
  41 #include "numeric.h"
  42 #include "logger.h"
  43 #include "s_serv.h"
  44 #include "whowas.h"
  45 #include "match.h"
  46 #include "hash.h"
  47 #include "msg.h"
  48 #include "parse.h"
  49 #include "modules.h"
  50 #include "s_conf.h"
  51 #include "s_newconf.h"
  52 #include "reject.h"
  53
  54 static int mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  55 static int ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  56 static int me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  57 static int mo_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  58 static int ms_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  59 static int me_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
  60
  61 struct Message xline_msgtab = {
  62         "XLINE", 0, 0, 0, MFLG_SLOW,
  63         {mg_unreg, mg_not_oper, {ms_xline, 5}, {ms_xline, 5}, {me_xline, 5}, {mo_xline, 3}}
  64 };
  65 struct Message unxline_msgtab = {
  66         "UNXLINE", 0, 0, 0, MFLG_SLOW,
  67         {mg_unreg, mg_not_oper, {ms_unxline, 3}, {ms_unxline, 3}, {me_unxline, 2}, {mo_unxline, 2}}
  68 };
  69
  70 mapi_clist_av1 xline_clist[] =  { &xline_msgtab, &unxline_msgtab, NULL };
  71 DECLARE_MODULE_AV1(xline, NULL, NULL, xline_clist, NULL, NULL, "$Revision: 3161 $");
  72
  73 static char *escape_perm_xline(const char *);
  74 static int valid_xline(struct Client *, const char *, const char *, int);
  75 static void apply_xline(struct Client *client_p, const char *name,
  76                         const char *reason, int temp_time);
  77 static void write_xline(struct Client *source_p, struct ConfItem *aconf);
  78 static void propagate_xline(struct Client *source_p, const char *target,
  79                         int temp_time, const char *name,
  80                         const char *type, const char *reason);
  81 static void cluster_xline(struct Client *source_p, int temp_time,
  82                         const char *name, const char *reason);
  83
  84 static void handle_remote_xline(struct Client *source_p, int temp_time,
  85                                 const char *name, const char *reason);
  86 static void handle_remote_unxline(struct Client *source_p, const char *name);
  87
  88 static void remove_xline(struct Client *source_p, const char *name);
  89 static int remove_xline_from_file(struct Client *source_p, const char *gecos);
  90
  91
  92 /* m_xline()
  93  *
  94  * parv[1] - thing to xline
  95  * parv[2] - optional type/reason
  96  * parv[3] - reason
  97  */
  98 static int
  99 mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 100 {
 101         struct ConfItem *aconf;
 102         const char *name;
 103         char *escapedname;
 104         const char *reason;
 105         const char *target_server = NULL;
 106         int temp_time;
 107         int loc = 1;
 108
 109         if(!IsOperXline(source_p))
 110         {
 111                 sendto_one(source_p, form_str(ERR_NOPRIVS),
 112                            me.name, source_p->name, "xline");
 113                 return 0;
 114         }
 115
 116         if((temp_time = valid_temp_time(parv[loc])) >= 0)
 117                 loc++;
 118         /* we just set temp_time to -1! */
 119         else
 120                 temp_time = 0;
 121
 122         name = parv[loc];
 123         loc++;
 124
 125         /* XLINE <gecos> ON <server> :<reason> */
 126         if(parc >= loc+2 && !irccmp(parv[loc], "ON"))
 127         {
 128                 if(!IsOperRemoteBan(source_p))
 129                 {
 130                         sendto_one(source_p, form_str(ERR_NOPRIVS),
 131                                 me.name, source_p->name, "remoteban");
 132                         return 0;
 133                 }
 134
 135                 target_server = parv[loc+1];
 136                 loc += 2;
 137         }
 138
 139         if(parc <= loc || EmptyString(parv[loc]))
 140         {
 141                 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
 142                                 me.name, source_p->name, "XLINE");
 143                 return 0;
 144         }
 145
 146         reason = parv[loc];
 147
 148         if (temp_time == 0)
 149         {
 150                 escapedname = escape_perm_xline(name);
 151                 if (strcmp(escapedname, name))
 152                         sendto_one_notice(source_p, ":Changed xline from [%s] to [%s]",
 153                                         name, escapedname);
 154         }
 155         else
 156                 escapedname = rb_strdup(name);
 157
 158         if(target_server != NULL)
 159         {
 160                 propagate_xline(source_p, target_server, temp_time,
 161                                 escapedname, "2", reason);
 162
 163                 if(!match(target_server, me.name))
 164                 {
 165                         rb_free(escapedname);
 166                         return 0;
 167                 }
 168         }
 169         else if(rb_dlink_list_length(&cluster_conf_list) > 0)
 170                 cluster_xline(source_p, temp_time, escapedname, reason);
 171
 172         if((aconf = find_xline_mask(escapedname)) != NULL)
 173         {
 174                 sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
 175                            me.name, source_p->name, escapedname, aconf->name, aconf->passwd);
 176                 rb_free(escapedname);
 177                 return 0;
 178         }
 179
 180         if(!valid_xline(source_p, escapedname, reason, temp_time))
 181         {
 182                 rb_free(escapedname);
 183                 return 0;
 184         }
 185
 186         apply_xline(source_p, escapedname, reason, temp_time);
 187         rb_free(escapedname);
 188
 189         return 0;
 190 }
 191
 192 /* ms_xline()
 193  *
 194  * handles a remote xline
 195  */
 196 static int
 197 ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 198 {
 199         /* source_p  parv[1]      parv[2]  parv[3]  parv[4]
 200          * oper      target serv  xline    type     reason
 201          */
 202         propagate_xline(source_p, parv[1], 0, parv[2], parv[3], parv[4]);
 203
 204         if(!IsPerson(source_p))
 205                 return 0;
 206
 207         /* destined for me? */
 208         if(!match(parv[1], me.name))
 209                 return 0;
 210
 211         handle_remote_xline(source_p, 0, parv[2], parv[4]);
 212         return 0;
 213 }
 214
 215 static int
 216 me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 217 {
 218         /* time name type :reason */
 219         if(!IsPerson(source_p))
 220                 return 0;
 221
 222         handle_remote_xline(source_p, atoi(parv[1]), parv[2], parv[4]);
 223         return 0;
 224 }
 225
 226 static void
 227 handle_remote_xline(struct Client *source_p, int temp_time,
 228                         const char *name, const char *reason)
 229 {
 230         struct ConfItem *aconf;
 231
 232         if(!find_shared_conf(source_p->username, source_p->host,
 233                                 source_p->servptr->name,
 234                                 (temp_time > 0) ? SHARED_TXLINE : SHARED_PXLINE))
 235                 return;
 236
 237         if(!valid_xline(source_p, name, reason, temp_time))
 238                 return;
 239
 240         /* already xlined */
 241         if((aconf = find_xline_mask(name)) != NULL)
 242         {
 243                 sendto_one_notice(source_p, ":[%s] already X-Lined by [%s] - %s", name, aconf->name, aconf->passwd);
 244                 return;
 245         }
 246
 247         apply_xline(source_p, name, reason, temp_time);
 248 }
 249
 250 /* escape_perm_xline()
 251  *
 252  * inputs       - gecos
 253  * outputs      - escaped gecos (allocated with rb_malloc())
 254  * side effects - none
 255  */
 256 static char *
 257 escape_perm_xline(const char *gecos)
 258 {
 259         char *result;
 260         int i, j;
 261
 262         result = rb_malloc(2 * strlen(gecos) + 1);
 263         for (i = 0, j = 0; gecos[i] != '\0'; i++)
 264         {
 265                 result[j++] = gecos[i];
 266                 if (gecos[i] == '"' && gecos[i + 1] == ',')
 267                         result[j++] = '\\';
 268         }
 269         result[j] = '\0';
 270         return result;
 271 }
 272
 273 /* valid_xline()
 274  *
 275  * inputs       - client xlining, gecos, reason and temp time
 276  * outputs      -
 277  * side effects - checks the xline for validity, erroring if needed
 278  */
 279 static int
 280 valid_xline(struct Client *source_p, const char *gecos,
 281             const char *reason, int temp_time)
 282 {
 283         if(EmptyString(reason))
 284         {
 285                 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
 286                            get_id(&me, source_p),
 287                            get_id(source_p, source_p), "XLINE");
 288                 return 0;
 289         }
 290
 291         if(temp_time == 0 && strstr(gecos, "\",") != NULL)
 292         {
 293                 sendto_one_notice(source_p,
 294                                   ":Invalid character sequence '\",' in xline, please replace with '\"\\,'");
 295                 return 0;
 296         }
 297
 298         if(strchr(reason, ':') != NULL)
 299         {
 300                 sendto_one_notice(source_p,
 301                                   ":Invalid character ':' in comment");
 302                 return 0;
 303         }
 304
 305         if(strchr(reason, '"'))
 306         {
 307                 sendto_one_notice(source_p,
 308                                 ":Invalid character '\"' in comment");
 309                 return 0;
 310         }
 311
 312         if(!valid_wild_card_simple(gecos))
 313         {
 314                 sendto_one_notice(source_p,
 315                                   ":Please include at least %d non-wildcard "
 316                                   "characters with the xline",
 317                                   ConfigFileEntry.min_nonwildcard_simple);
 318                 return 0;
 319         }
 320
 321         return 1;
 322 }
 323
 324 void
 325 apply_xline(struct Client *source_p, const char *name, const char *reason,
 326                 int temp_time)
 327 {
 328         struct ConfItem *aconf;
 329
 330         aconf = make_conf();
 331         aconf->status = CONF_XLINE;
 332
 333         aconf->name = rb_strdup(name);
 334         aconf->passwd = rb_strdup(reason);
 335         collapse(aconf->name);
 336
 337         if(temp_time > 0)
 338         {
 339                 aconf->hold = rb_current_time() + temp_time;
 340
 341                 sendto_realops_snomask(SNO_GENERAL, L_ALL,
 342                              "%s added temporary %d min. X-Line for [%s] [%s]",
 343                              get_oper_name(source_p), temp_time / 60,
 344                              aconf->name, reason);
 345                 ilog(L_KLINE, "X %s %d %s %s",
 346                         get_oper_name(source_p), temp_time / 60,
 347                         name, reason);
 348                 sendto_one_notice(source_p, ":Added temporary %d min. X-Line [%s]",
 349                                 temp_time / 60, aconf->name);
 350         }
 351         else
 352         {
 353                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s added X-Line for [%s] [%s]",
 354                                 get_oper_name(source_p),
 355                                 aconf->name, aconf->passwd);
 356                 sendto_one_notice(source_p, ":Added X-Line for [%s] [%s]",
 357                                         aconf->name, aconf->passwd);
 358                 write_xline(source_p, aconf);
 359                 ilog(L_KLINE, "X %s 0 %s %s",
 360                         get_oper_name(source_p), name, reason);
 361         }
 362
 363         rb_dlinkAddAlloc(aconf, &xline_conf_list);
 364         check_xlines();
 365 }
 366
 367 /* write_xline()
 368  *
 369  * inputs       - gecos, reason, xline type
 370  * outputs      - writes an xline to the config
 371  * side effects -
 372  */
 373 static void
 374 write_xline(struct Client *source_p, struct ConfItem *aconf)
 375 {
 376         char buffer[BUFSIZE * 2];
 377         FILE *out;
 378         const char *filename;
 379         char *mangle_gecos;
 380
 381         if(strstr(aconf->name, "\\s"))
 382         {
 383                 char *tmp = LOCAL_COPY(aconf->name);
 384                 char *orig = tmp;
 385                 char *new = tmp;
 386                 while(*orig)
 387                 {
 388                         if(*orig == '\\' && *(orig + 1) != '\0')
 389                         {
 390                                 if(*(orig + 1) == 's')
 391                                 {
 392                                         *new++ = ' ';
 393                                         orig += 2;
 394                                 }
 395                                 /* otherwise skip that and the escaped
 396                                  * character after it, so we dont mistake
 397                                  * \\s as \s --fl
 398                                  */
 399                                 else
 400                                 {
 401                                         *new++ = *orig++;
 402                                         *new++ = *orig++;
 403                                 }
 404                         }
 405                         else
 406                                 *new++ = *orig++;
 407                 }
 408
 409                 *new = '\0';
 410                 mangle_gecos = tmp;
 411         } else
 412                 mangle_gecos = aconf->name;
 413
 414         filename = ConfigFileEntry.xlinefile;
 415
 416         if((out = fopen(filename, "a")) == NULL)
 417         {
 418                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem opening %s ", filename);
 419                 sendto_one_notice(source_p, ":*** Problem opening file, xline added temporarily only");
 420                 return;
 421         }
 422
 423         rb_sprintf(buffer, "\"%s\",\"0\",\"%s\",\"%s\",%ld\n",
 424                    mangle_gecos, aconf->passwd,
 425                    get_oper_name(source_p), (long) rb_current_time());
 426
 427         if(fputs(buffer, out) == -1)
 428         {
 429                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem writing to %s", filename);
 430                 sendto_one_notice(source_p, ":*** Problem writing to file, xline added temporarily only");
 431                 fclose(out);
 432                 return;
 433         }
 434
 435         if(fclose(out))
 436         {
 437                 sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem writing to %s", filename);
 438                 sendto_one_notice(source_p, ":*** Problem writing to file, xline added temporarily only");
 439                 return;
 440         }
 441 }
 442
 443 static void
 444 propagate_xline(struct Client *source_p, const char *target,
 445                 int temp_time, const char *name, const char *type,
 446                 const char *reason)
 447 {
 448         if(!temp_time)
 449         {
 450                 sendto_match_servs(source_p, target, CAP_CLUSTER, NOCAPS,
 451                                         "XLINE %s %s %s :%s",
 452                                         target, name, type, reason);
 453                 sendto_match_servs(source_p, target, CAP_ENCAP, CAP_CLUSTER,
 454                                 "ENCAP %s XLINE %d %s 2 :%s",
 455                                 target, temp_time, name, reason);
 456         }
 457         else
 458                 sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
 459                                 "ENCAP %s XLINE %d %s %s :%s",
 460                                 target, temp_time, name, type, reason);
 461 }
 462
 463 static void
 464 cluster_xline(struct Client *source_p, int temp_time, const char *name,
 465                 const char *reason)
 466 {
 467         struct remote_conf *shared_p;
 468         rb_dlink_node *ptr;
 469
 470         RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
 471         {
 472                 shared_p = ptr->data;
 473
 474                 /* old protocol cant handle temps, and we dont really want
 475                  * to convert them to perm.. --fl
 476                  */
 477                 if(!temp_time)
 478                 {
 479                         if(!(shared_p->flags & SHARED_PXLINE))
 480                                 continue;
 481
 482                         sendto_match_servs(source_p, shared_p->server, CAP_CLUSTER, NOCAPS,
 483                                         "XLINE %s %s 2 :%s",
 484                                         shared_p->server, name, reason);
 485                         sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, CAP_CLUSTER,
 486                                         "ENCAP %s XLINE 0 %s 2 :%s",
 487                                         shared_p->server, name, reason);
 488                 }
 489                 else if(shared_p->flags & SHARED_TXLINE)
 490                         sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, NOCAPS,
 491                                         "ENCAP %s XLINE %d %s 2 :%s",
 492                                         shared_p->server, temp_time, name, reason);
 493         }
 494 }
 495
 496 /* mo_unxline()
 497  *
 498  * parv[1] - thing to unxline
 499  */
 500 static int
 501 mo_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 502 {
 503         if(!IsOperXline(source_p))
 504         {
 505                 sendto_one(source_p, form_str(ERR_NOPRIVS),
 506                            me.name, source_p->name, "xline");
 507                 return 0;
 508         }
 509
 510         if(parc == 4 && !(irccmp(parv[2], "ON")))
 511         {
 512                 if(!IsOperRemoteBan(source_p))
 513                 {
 514                         sendto_one(source_p, form_str(ERR_NOPRIVS),
 515                                 me.name, source_p->name, "remoteban");
 516                         return 0;
 517                 }
 518
 519                 propagate_generic(source_p, "UNXLINE", parv[3], CAP_CLUSTER,
 520                                 "%s", parv[1]);
 521
 522                 if(match(parv[3], me.name) == 0)
 523                         return 0;
 524         }
 525         else if(rb_dlink_list_length(&cluster_conf_list))
 526                 cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER,
 527                                 "%s", parv[1]);
 528
 529         remove_xline(source_p, parv[1]);
 530
 531         return 0;
 532 }
 533
 534 /* ms_unxline()
 535  *
 536  * handles a remote unxline
 537  */
 538 static int
 539 ms_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 540 {
 541         /* source_p  parv[1]        parv[2]
 542          * oper      target server  gecos
 543          */
 544         propagate_generic(source_p, "UNXLINE", parv[1], CAP_CLUSTER,
 545                         "%s", parv[2]);
 546
 547         if(!match(parv[1], me.name))
 548                 return 0;
 549
 550         if(!IsPerson(source_p))
 551                 return 0;
 552
 553         handle_remote_unxline(source_p, parv[2]);
 554         return 0;
 555 }
 556
 557 static int
 558 me_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
 559 {
 560         /* name */
 561         if(!IsPerson(source_p))
 562                 return 0;
 563
 564         handle_remote_unxline(source_p, parv[1]);
 565         return 0;
 566 }
 567
 568 static void
 569 handle_remote_unxline(struct Client *source_p, const char *name)
 570 {
 571         if(!find_shared_conf(source_p->username, source_p->host,
 572                                 source_p->servptr->name, SHARED_UNXLINE))
 573                 return;
 574
 575         remove_xline(source_p, name);
 576
 577         return;
 578 }
 579
 580 static void
 581 remove_xline(struct Client *source_p, const char *name)
 582 {
 583         struct ConfItem *aconf;
 584         rb_dlink_node *ptr;
 585         char *encoded;
 586
 587         encoded = xline_encode_spaces(name);
 588
 589         RB_DLINK_FOREACH(ptr, xline_conf_list.head)
 590         {
 591                 aconf = ptr->data;
 592
 593                 if(!irccmp(aconf->name, encoded))
 594                 {
 595                         if (!aconf->hold)
 596                         {
 597                                 if (!remove_xline_from_file(source_p, encoded))
 598                                         return;
 599                         }
 600                         else
 601                         {
 602                                 sendto_one_notice(source_p,
 603                                                 ":X-Line for [%s] is removed",
 604                                                 encoded);
 605                                 sendto_realops_snomask(SNO_GENERAL, L_ALL,
 606                                                 "%s has removed the temporary X-Line for: [%s]",
 607                                                 get_oper_name(source_p), encoded);
 608                                 ilog(L_KLINE, "UX %s %s",
 609                                                 get_oper_name(source_p), encoded);
 610                         }
 611
 612                         remove_reject_mask(aconf->name, NULL);
 613                         free_conf(aconf);
 614                         rb_dlinkDestroy(ptr, &xline_conf_list);
 615                         rb_free(encoded);
 616                         return;
 617                 }
 618         }
 619
 620         sendto_one_notice(source_p, ":No X-Line for %s", encoded);
 621         rb_free(encoded);
 622
 623         return;
 624 }
 625
 626 /* remove_xline_from_file()
 627  *
 628  * inputs       - gecos to remove
 629  * outputs      -
 630  * side effects - removes xline from conf, if exists
 631  *              - does not touch xline_conf_list
 632  */
 633 static int
 634 remove_xline_from_file(struct Client *source_p, const char *huntgecos)
 635 {
 636         FILE *in, *out;
 637         char buf[BUFSIZE];
 638         char buff[BUFSIZE];
 639         char temppath[BUFSIZE];
 640         const char *filename;
 641         const char *gecos;
 642         mode_t oldumask;
 643         char *p;
 644         char *encoded;
 645         int error_on_write = 0;
 646         int found_xline = 0;
 647
 648         filename = ConfigFileEntry.xlinefile;
 649         rb_snprintf(temppath, sizeof(temppath),
 650                  "%s.tmp", ConfigFileEntry.xlinefile);
 651
 652         if((in = fopen(filename, "r")) == NULL)
 653         {
 654                 sendto_one_notice(source_p, ":Cannot open %s", filename);
 655                 return 0;
 656         }
 657
 658         oldumask = umask(0);
 659
 660         if((out = fopen(temppath, "w")) == NULL)
 661         {
 662                 sendto_one_notice(source_p, ":Cannot open %s", temppath);
 663                 fclose(in);
 664                 umask(oldumask);
 665                 return 0;
 666         }
 667
 668         umask(oldumask);
 669
 670         while (fgets(buf, sizeof(buf), in))
 671         {
 672                 if(error_on_write)
 673                 {
 674                         if(temppath != NULL)
 675                                 (void) unlink(temppath);
 676
 677                         break;
 678                 }
 679
 680                 rb_strlcpy(buff, buf, sizeof(buff));
 681
 682                 if((p = strchr(buff, '\n')) != NULL)
 683                         *p = '\0';
 684
 685                 if((*buff == '\0') || (*buff == '#'))
 686                 {
 687                         error_on_write = (fputs(buf, out) < 0) ? YES : NO;
 688                         continue;
 689                 }
 690
 691                 if((gecos = getfield(buff)) == NULL)
 692                 {
 693                         error_on_write = (fputs(buf, out) < 0) ? YES : NO;
 694                         continue;
 695                 }
 696
 697                 /* matching.. */
 698                 encoded = xline_encode_spaces(gecos);
 699                 if(irccmp(encoded, huntgecos) == 0)
 700                         found_xline++;
 701                 else
 702                         error_on_write = (fputs(buf, out) < 0) ? YES : NO;
 703                 rb_free(encoded);
 704         }
 705
 706         fclose(in);
 707         if (fclose(out))
 708                 error_on_write = YES;
 709
 710         if(error_on_write)
 711         {
 712                 sendto_one_notice(source_p,
 713                                   ":Couldn't write temp xline file, aborted");
 714                 return 0;
 715         }
 716         else if(found_xline == 0)
 717         {
 718                 sendto_one_notice(source_p, ":Cannot find X-Line for %s in file", huntgecos);
 719
 720                 if(temppath != NULL)
 721                         (void) unlink(temppath);
 722                 return 0;
 723         }
 724
 725         if (rename(temppath, filename))
 726         {
 727                 sendto_one_notice(source_p, ":Couldn't rename temp file, aborted");
 728                 return 0;
 729         }
 730
 731         sendto_one_notice(source_p, ":X-Line for [%s] is removed", huntgecos);
 732         sendto_realops_snomask(SNO_GENERAL, L_ALL,
 733                              "%s has removed the X-Line for: [%s]",
 734                              get_oper_name(source_p), huntgecos);
 735         ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), huntgecos);
 736
 737         return 1;
 738 }