| 1 |
/* |
| 2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
| 3 |
* |
| 4 |
* Copyright (c) 1997-2014 ircd-hybrid development team |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 19 |
* USA |
| 20 |
*/ |
| 21 |
|
| 22 |
/*! \file m_dline.c |
| 23 |
* \brief Includes required functions for processing the DLINE/UNDLINE command. |
| 24 |
* \version $Id$ |
| 25 |
*/ |
| 26 |
|
| 27 |
#include "stdinc.h" |
| 28 |
#include "list.h" |
| 29 |
#include "channel.h" |
| 30 |
#include "client.h" |
| 31 |
#include "irc_string.h" |
| 32 |
#include "conf.h" |
| 33 |
#include "ircd.h" |
| 34 |
#include "hostmask.h" |
| 35 |
#include "numeric.h" |
| 36 |
#include "fdlist.h" |
| 37 |
#include "s_bsd.h" |
| 38 |
#include "log.h" |
| 39 |
#include "s_misc.h" |
| 40 |
#include "send.h" |
| 41 |
#include "hash.h" |
| 42 |
#include "s_serv.h" |
| 43 |
#include "parse.h" |
| 44 |
#include "modules.h" |
| 45 |
#include "conf_db.h" |
| 46 |
#include "memory.h" |
| 47 |
|
| 48 |
|
| 49 |
/* apply_tdline() |
| 50 |
* |
| 51 |
* inputs - |
| 52 |
* output - NONE |
| 53 |
* side effects - tkline as given is placed |
| 54 |
*/ |
| 55 |
static void |
| 56 |
apply_dline(struct Client *source_p, struct MaskItem *conf, |
| 57 |
time_t tkline_time) |
| 58 |
{ |
| 59 |
if (tkline_time) |
| 60 |
{ |
| 61 |
conf->until = CurrentTime + tkline_time; |
| 62 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 63 |
"%s added temporary %d min. D-Line for [%s] [%s]", |
| 64 |
get_oper_name(source_p), tkline_time/60, |
| 65 |
conf->host, conf->reason); |
| 66 |
sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. D-Line [%s]", |
| 67 |
MyConnect(source_p) ? me.name : ID_or_name(&me, source_p), |
| 68 |
source_p->name, tkline_time/60, conf->host); |
| 69 |
ilog(LOG_TYPE_DLINE, "%s added temporary %d min. D-Line for [%s] [%s]", |
| 70 |
get_oper_name(source_p), tkline_time/60, conf->host, conf->reason); |
| 71 |
} |
| 72 |
else |
| 73 |
{ |
| 74 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 75 |
"%s added D-Line for [%s] [%s]", |
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get_oper_name(source_p), conf->host, conf->reason); |
| 77 |
sendto_one(source_p, ":%s NOTICE %s :Added D-Line [%s]", |
| 78 |
MyConnect(source_p) ? me.name : ID_or_name(&me, source_p), |
| 79 |
source_p->name, conf->host); |
| 80 |
ilog(LOG_TYPE_DLINE, "%s added D-Line for [%s] [%s]", |
| 81 |
get_oper_name(source_p), conf->host, conf->reason); |
| 82 |
|
| 83 |
} |
| 84 |
|
| 85 |
SetConfDatabase(conf); |
| 86 |
conf->setat = CurrentTime; |
| 87 |
add_conf_by_address(CONF_DLINE, conf); |
| 88 |
rehashed_klines = 1; |
| 89 |
} |
| 90 |
|
| 91 |
/* static int remove_tdline_match(const char *host, const char *user) |
| 92 |
* Input: An ip to undline. |
| 93 |
* Output: returns YES on success, NO if no tdline removed. |
| 94 |
* Side effects: Any matching tdlines are removed. |
| 95 |
*/ |
| 96 |
static int |
| 97 |
remove_dline_match(const char *host) |
| 98 |
{ |
| 99 |
struct irc_ssaddr iphost, *piphost; |
| 100 |
struct MaskItem *conf; |
| 101 |
int t = 0; |
| 102 |
int aftype = 0; |
| 103 |
|
| 104 |
if ((t = parse_netmask(host, &iphost, NULL)) != HM_HOST) |
| 105 |
{ |
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#ifdef IPV6 |
| 107 |
if (t == HM_IPV6) |
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aftype = AF_INET6; |
| 109 |
else |
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#endif |
| 111 |
aftype = AF_INET; |
| 112 |
piphost = &iphost; |
| 113 |
} |
| 114 |
else |
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piphost = NULL; |
| 116 |
|
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if ((conf = find_conf_by_address(host, piphost, CONF_DLINE | 1, aftype, NULL, NULL, 0))) |
| 118 |
{ |
| 119 |
if (IsConfDatabase(conf)) |
| 120 |
{ |
| 121 |
delete_one_address_conf(host, conf); |
| 122 |
return 1; |
| 123 |
} |
| 124 |
} |
| 125 |
|
| 126 |
return 0; |
| 127 |
} |
| 128 |
|
| 129 |
/* mo_dline() |
| 130 |
* |
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* inputs - pointer to server |
| 132 |
* - pointer to client |
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* - parameter count |
| 134 |
* - parameter list |
| 135 |
* output - |
| 136 |
* side effects - D line is added |
| 137 |
* |
| 138 |
*/ |
| 139 |
static int |
| 140 |
mo_dline(struct Client *client_p, struct Client *source_p, |
| 141 |
int parc, char *parv[]) |
| 142 |
{ |
| 143 |
char def_reason[] = CONF_NOREASON; |
| 144 |
char *dlhost = NULL, *reason = NULL; |
| 145 |
char *target_server = NULL; |
| 146 |
const char *creason; |
| 147 |
const struct Client *target_p = NULL; |
| 148 |
struct irc_ssaddr daddr; |
| 149 |
struct MaskItem *conf=NULL; |
| 150 |
time_t tkline_time=0; |
| 151 |
int bits = 0, aftype = 0, t = 0; |
| 152 |
const char *current_date = NULL; |
| 153 |
time_t cur_time; |
| 154 |
char hostip[HOSTIPLEN + 1]; |
| 155 |
char buffer[IRCD_BUFSIZE]; |
| 156 |
|
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if (!HasOFlag(source_p, OPER_FLAG_DLINE)) |
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{ |
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sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, |
| 160 |
source_p->name, "dline"); |
| 161 |
return 0; |
| 162 |
} |
| 163 |
|
| 164 |
if (parse_aline("DLINE", source_p, parc, parv, AWILD, &dlhost, |
| 165 |
NULL, &tkline_time, &target_server, &reason) < 0) |
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return 0; |
| 167 |
|
| 168 |
if (target_server != NULL) |
| 169 |
{ |
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sendto_match_servs(source_p, target_server, CAP_DLN, "DLINE %s %lu %s :%s", |
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target_server, (unsigned long)tkline_time, |
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dlhost, reason); |
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|
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/* Allow ON to apply local kline as well if it matches */ |
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if (match(target_server, me.name)) |
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return 0; |
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} |
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else |
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cluster_a_line(source_p, "DLINE", CAP_DLN, SHARED_DLINE, |
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"%d %s :%s", tkline_time, dlhost, reason); |
| 181 |
|
| 182 |
if ((t = parse_netmask(dlhost, NULL, &bits)) == HM_HOST) |
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{ |
| 184 |
if ((target_p = find_chasing(source_p, dlhost, NULL)) == NULL) |
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return 0; |
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|
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if (!MyConnect(target_p)) |
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{ |
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sendto_one(source_p, |
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":%s NOTICE %s :Can't DLINE nick on another server", |
| 191 |
me.name, source_p->name); |
| 192 |
return 0; |
| 193 |
} |
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|
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if (IsExemptKline(target_p)) |
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{ |
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sendto_one(source_p, ":%s NOTICE %s :%s is E-lined", |
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me.name, source_p->name, target_p->name); |
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return 0; |
| 200 |
} |
| 201 |
|
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getnameinfo((struct sockaddr *)&target_p->localClient->ip, |
| 203 |
target_p->localClient->ip.ss_len, hostip, |
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sizeof(hostip), NULL, 0, NI_NUMERICHOST); |
| 205 |
dlhost = hostip; |
| 206 |
t = parse_netmask(dlhost, NULL, &bits); |
| 207 |
assert(t == HM_IPV4 || t == HM_IPV6); |
| 208 |
} |
| 209 |
|
| 210 |
if (bits < 8) |
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{ |
| 212 |
sendto_one(source_p, |
| 213 |
":%s NOTICE %s :For safety, bitmasks less than 8 require conf access.", |
| 214 |
me.name, source_p->name); |
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return 0; |
| 216 |
} |
| 217 |
|
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#ifdef IPV6 |
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if (t == HM_IPV6) |
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aftype = AF_INET6; |
| 221 |
else |
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#endif |
| 223 |
aftype = AF_INET; |
| 224 |
|
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parse_netmask(dlhost, &daddr, NULL); |
| 226 |
|
| 227 |
if ((conf = find_dline_conf(&daddr, aftype)) != NULL) |
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{ |
| 229 |
creason = conf->reason ? conf->reason : def_reason; |
| 230 |
|
| 231 |
if (IsConfExemptKline(conf)) |
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sendto_one(source_p, ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s", |
| 233 |
me.name, source_p->name, dlhost, conf->host, creason); |
| 234 |
else |
| 235 |
sendto_one(source_p, ":%s NOTICE %s :[%s] already D-lined by [%s] - %s", |
| 236 |
me.name, source_p->name, dlhost, conf->host, creason); |
| 237 |
return 0; |
| 238 |
} |
| 239 |
|
| 240 |
cur_time = CurrentTime; |
| 241 |
current_date = smalldate(cur_time); |
| 242 |
|
| 243 |
if (!valid_comment(source_p, reason, 1)) |
| 244 |
return 0; |
| 245 |
|
| 246 |
conf = conf_make(CONF_DLINE); |
| 247 |
conf->host = xstrdup(dlhost); |
| 248 |
|
| 249 |
if (tkline_time != 0) |
| 250 |
snprintf(buffer, sizeof(buffer), "Temporary D-line %d min. - %s (%s)", |
| 251 |
(int)(tkline_time/60), reason, current_date); |
| 252 |
else |
| 253 |
snprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date); |
| 254 |
|
| 255 |
conf->reason = xstrdup(buffer); |
| 256 |
apply_dline(source_p, conf, tkline_time); |
| 257 |
rehashed_klines = 1; |
| 258 |
return 0; |
| 259 |
} |
| 260 |
|
| 261 |
static int |
| 262 |
ms_dline(struct Client *client_p, struct Client *source_p, |
| 263 |
int parc, char *parv[]) |
| 264 |
{ |
| 265 |
char def_reason[] = CONF_NOREASON; |
| 266 |
char *dlhost, *reason; |
| 267 |
const char *creason; |
| 268 |
const struct Client *target_p = NULL; |
| 269 |
struct irc_ssaddr daddr; |
| 270 |
struct MaskItem *conf=NULL; |
| 271 |
time_t tkline_time=0; |
| 272 |
int bits = 0, aftype = 0, t = 0; |
| 273 |
const char *current_date = NULL; |
| 274 |
time_t cur_time; |
| 275 |
char hostip[HOSTIPLEN + 1]; |
| 276 |
char buffer[IRCD_BUFSIZE]; |
| 277 |
|
| 278 |
if (parc != 5 || EmptyString(parv[4])) |
| 279 |
return 0; |
| 280 |
|
| 281 |
/* parv[0] parv[1] parv[2] parv[3] parv[4] */ |
| 282 |
/* oper target_server tkline_time host reason */ |
| 283 |
sendto_match_servs(source_p, parv[1], CAP_DLN, |
| 284 |
"DLINE %s %s %s :%s", |
| 285 |
parv[1], parv[2], parv[3], parv[4]); |
| 286 |
|
| 287 |
if (match(parv[1], me.name)) |
| 288 |
return 0; |
| 289 |
|
| 290 |
tkline_time = valid_tkline(parv[2], TK_SECONDS); |
| 291 |
dlhost = parv[3]; |
| 292 |
reason = parv[4]; |
| 293 |
|
| 294 |
if (HasFlag(source_p, FLAGS_SERVICE) || |
| 295 |
find_matching_name_conf(CONF_ULINE, source_p->servptr->name, |
| 296 |
source_p->username, source_p->host, |
| 297 |
SHARED_DLINE)) |
| 298 |
{ |
| 299 |
if (!IsClient(source_p)) |
| 300 |
return 0; |
| 301 |
|
| 302 |
if ((t = parse_netmask(dlhost, NULL, &bits)) == HM_HOST) |
| 303 |
{ |
| 304 |
if ((target_p = find_chasing(source_p, dlhost, NULL)) == NULL) |
| 305 |
return 0; |
| 306 |
|
| 307 |
if (!MyConnect(target_p)) |
| 308 |
{ |
| 309 |
sendto_one(source_p, |
| 310 |
":%s NOTICE %s :Can't DLINE nick on another server", |
| 311 |
me.name, source_p->name); |
| 312 |
return 0; |
| 313 |
} |
| 314 |
|
| 315 |
if (IsExemptKline(target_p)) |
| 316 |
{ |
| 317 |
sendto_one(source_p, |
| 318 |
":%s NOTICE %s :%s is E-lined", me.name, |
| 319 |
source_p->name, target_p->name); |
| 320 |
return 0; |
| 321 |
} |
| 322 |
|
| 323 |
getnameinfo((struct sockaddr *)&target_p->localClient->ip, |
| 324 |
target_p->localClient->ip.ss_len, hostip, |
| 325 |
sizeof(hostip), NULL, 0, NI_NUMERICHOST); |
| 326 |
dlhost = hostip; |
| 327 |
t = parse_netmask(dlhost, NULL, &bits); |
| 328 |
assert(t == HM_IPV4 || t == HM_IPV6); |
| 329 |
} |
| 330 |
|
| 331 |
if (bits < 8) |
| 332 |
{ |
| 333 |
sendto_one(source_p, |
| 334 |
":%s NOTICE %s :For safety, bitmasks less than 8 require conf access.", |
| 335 |
me.name, source_p->name); |
| 336 |
return 0; |
| 337 |
} |
| 338 |
|
| 339 |
#ifdef IPV6 |
| 340 |
if (t == HM_IPV6) |
| 341 |
aftype= AF_INET6; |
| 342 |
else |
| 343 |
#endif |
| 344 |
aftype = AF_INET; |
| 345 |
|
| 346 |
parse_netmask(dlhost, &daddr, NULL); |
| 347 |
|
| 348 |
if ((conf = find_dline_conf(&daddr, aftype)) != NULL) |
| 349 |
{ |
| 350 |
creason = conf->reason ? conf->reason : def_reason; |
| 351 |
if (IsConfExemptKline(conf)) |
| 352 |
sendto_one(source_p, |
| 353 |
":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s", |
| 354 |
me.name, source_p->name, dlhost, conf->host, creason); |
| 355 |
else |
| 356 |
sendto_one(source_p, |
| 357 |
":%s NOTICE %s :[%s] already D-lined by [%s] - %s", |
| 358 |
me.name, source_p->name, dlhost, conf->host, creason); |
| 359 |
return 0; |
| 360 |
} |
| 361 |
|
| 362 |
cur_time = CurrentTime; |
| 363 |
current_date = smalldate(cur_time); |
| 364 |
|
| 365 |
if (!valid_comment(source_p, reason, 1)) |
| 366 |
return 0; |
| 367 |
|
| 368 |
conf = conf_make(CONF_DLINE); |
| 369 |
conf->host = xstrdup(dlhost); |
| 370 |
|
| 371 |
if (tkline_time != 0) |
| 372 |
snprintf(buffer, sizeof(buffer), "Temporary D-line %d min. - %s (%s)", |
| 373 |
(int)(tkline_time/60), reason, current_date); |
| 374 |
else |
| 375 |
snprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date); |
| 376 |
|
| 377 |
conf->reason = xstrdup(buffer); |
| 378 |
apply_dline(source_p, conf, tkline_time); |
| 379 |
rehashed_klines = 1; |
| 380 |
} |
| 381 |
|
| 382 |
return 0; |
| 383 |
} |
| 384 |
|
| 385 |
/* |
| 386 |
** m_undline |
| 387 |
** added May 28th 2000 by Toby Verrall <toot@melnet.co.uk> |
| 388 |
** based totally on m_unkline |
| 389 |
** added to hybrid-7 7/11/2000 --is |
| 390 |
** |
| 391 |
** parv[0] = sender nick |
| 392 |
** parv[1] = dline to remove |
| 393 |
*/ |
| 394 |
static int |
| 395 |
mo_undline(struct Client *client_p, struct Client *source_p, |
| 396 |
int parc, char *parv[]) |
| 397 |
{ |
| 398 |
char *addr = NULL, *user = NULL; |
| 399 |
char *target_server = NULL; |
| 400 |
|
| 401 |
if (!HasOFlag(source_p, OPER_FLAG_UNDLINE)) |
| 402 |
{ |
| 403 |
sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, |
| 404 |
source_p->name, "undline"); |
| 405 |
return 0; |
| 406 |
} |
| 407 |
|
| 408 |
if (parc < 2 || EmptyString(parv[1])) |
| 409 |
{ |
| 410 |
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), |
| 411 |
me.name, source_p->name, "UNDLINE"); |
| 412 |
return 0; |
| 413 |
} |
| 414 |
|
| 415 |
if (parse_aline("UNDLINE", source_p, parc, parv, 0, &user, |
| 416 |
&addr, NULL, &target_server, NULL) < 0) |
| 417 |
return 0; |
| 418 |
|
| 419 |
if (target_server != NULL) |
| 420 |
{ |
| 421 |
sendto_match_servs(source_p, target_server, CAP_UNDLN, |
| 422 |
"UNDLINE %s %s", target_server, addr); |
| 423 |
|
| 424 |
/* Allow ON to apply local unkline as well if it matches */ |
| 425 |
if (match(target_server, me.name)) |
| 426 |
return 0; |
| 427 |
} |
| 428 |
else |
| 429 |
cluster_a_line(source_p, "UNDLINE", CAP_UNDLN, SHARED_UNDLINE, |
| 430 |
"%s", addr); |
| 431 |
|
| 432 |
if (remove_dline_match(addr)) |
| 433 |
{ |
| 434 |
sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed", |
| 435 |
me.name, source_p->name, addr); |
| 436 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 437 |
"%s has removed the D-Line for: [%s]", |
| 438 |
get_oper_name(source_p), addr); |
| 439 |
ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]", |
| 440 |
get_oper_name(source_p), addr); |
| 441 |
} |
| 442 |
else |
| 443 |
sendto_one(source_p, ":%s NOTICE %s :No D-Line for [%s] found", |
| 444 |
me.name, source_p->name, addr); |
| 445 |
return 0; |
| 446 |
} |
| 447 |
|
| 448 |
static int |
| 449 |
ms_undline(struct Client *client_p, struct Client *source_p, |
| 450 |
int parc, char *parv[]) |
| 451 |
{ |
| 452 |
const char *addr = parv[1]; |
| 453 |
|
| 454 |
if (parc != 3 || EmptyString(parv[2])) |
| 455 |
return 0; |
| 456 |
|
| 457 |
sendto_match_servs(source_p, parv[1], CAP_UNDLN, |
| 458 |
"UNDLINE %s %s", |
| 459 |
parv[1], parv[2]); |
| 460 |
|
| 461 |
if (!IsClient(source_p) || match(parv[1], me.name)) |
| 462 |
return 0; |
| 463 |
|
| 464 |
if (HasFlag(source_p, FLAGS_SERVICE) || |
| 465 |
find_matching_name_conf(CONF_ULINE, source_p->servptr->name, |
| 466 |
source_p->username, source_p->host, |
| 467 |
SHARED_UNDLINE)) |
| 468 |
{ |
| 469 |
if (remove_dline_match(addr)) |
| 470 |
{ |
| 471 |
sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed", |
| 472 |
me.name, source_p->name, addr); |
| 473 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 474 |
"%s has removed the D-Line for: [%s]", |
| 475 |
get_oper_name(source_p), addr); |
| 476 |
ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]", |
| 477 |
get_oper_name(source_p), addr); |
| 478 |
} |
| 479 |
else |
| 480 |
sendto_one(source_p, ":%s NOTICE %s :No D-Line for [%s] found", |
| 481 |
me.name, source_p->name, addr); |
| 482 |
} |
| 483 |
|
| 484 |
return 0; |
| 485 |
} |
| 486 |
|
| 487 |
static struct Message dline_msgtab = |
| 488 |
{ |
| 489 |
"DLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0, |
| 490 |
{ m_unregistered, m_not_oper, ms_dline, m_ignore, mo_dline, m_ignore } |
| 491 |
}; |
| 492 |
|
| 493 |
static struct Message undline_msgtab = |
| 494 |
{ |
| 495 |
"UNDLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0, |
| 496 |
{ m_unregistered, m_not_oper, ms_undline, m_ignore, mo_undline, m_ignore } |
| 497 |
}; |
| 498 |
|
| 499 |
static void |
| 500 |
module_init(void) |
| 501 |
{ |
| 502 |
mod_add_cmd(&dline_msgtab); |
| 503 |
mod_add_cmd(&undline_msgtab); |
| 504 |
add_capability("DLN", CAP_DLN, 1); |
| 505 |
add_capability("UNDLN", CAP_UNDLN, 1); |
| 506 |
} |
| 507 |
|
| 508 |
static void |
| 509 |
module_exit(void) |
| 510 |
{ |
| 511 |
mod_del_cmd(&dline_msgtab); |
| 512 |
mod_del_cmd(&undline_msgtab); |
| 513 |
delete_capability("UNDLN"); |
| 514 |
delete_capability("DLN"); |
| 515 |
} |
| 516 |
|
| 517 |
struct module module_entry = |
| 518 |
{ |
| 519 |
.node = { NULL, NULL, NULL }, |
| 520 |
.name = NULL, |
| 521 |
.version = "$Revision$", |
| 522 |
.handle = NULL, |
| 523 |
.modinit = module_init, |
| 524 |
.modexit = module_exit, |
| 525 |
.flags = 0 |
| 526 |
}; |
