682 lines
16 KiB
C
682 lines
16 KiB
C
/* modules/m_xline.c
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*
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* Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1.Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2.Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3.The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: m_xline.c 3161 2007-01-25 07:23:01Z nenolod $
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*/
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#include "stdinc.h"
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#include "send.h"
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#include "channel.h"
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#include "client.h"
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#include "common.h"
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#include "config.h"
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#include "class.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "s_log.h"
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#include "s_serv.h"
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#include "whowas.h"
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#include "irc_string.h"
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#include "sprintf_irc.h"
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#include "hash.h"
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#include "msg.h"
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#include "parse.h"
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#include "modules.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "reject.h"
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static int mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int mo_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int ms_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int me_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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struct Message xline_msgtab = {
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"XLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_xline, 5}, {ms_xline, 5}, {me_xline, 5}, {mo_xline, 3}}
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};
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struct Message unxline_msgtab = {
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"UNXLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_unxline, 3}, {ms_unxline, 3}, {me_unxline, 2}, {mo_unxline, 2}}
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};
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mapi_clist_av1 xline_clist[] = { &xline_msgtab, &unxline_msgtab, NULL };
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DECLARE_MODULE_AV1(xline, NULL, NULL, xline_clist, NULL, NULL, "$Revision: 3161 $");
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static int valid_xline(struct Client *, const char *, const char *);
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static void apply_xline(struct Client *client_p, const char *name,
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const char *reason, int temp_time);
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static void write_xline(struct Client *source_p, struct ConfItem *aconf);
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static void propagate_xline(struct Client *source_p, const char *target,
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int temp_time, const char *name,
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const char *type, const char *reason);
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static void cluster_xline(struct Client *source_p, int temp_time,
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const char *name, const char *reason);
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static void handle_remote_xline(struct Client *source_p, int temp_time,
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const char *name, const char *reason);
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static void handle_remote_unxline(struct Client *source_p, const char *name);
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static void remove_xline(struct Client *source_p, const char *name);
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static int remove_xline_from_file(struct Client *source_p, const char *gecos);
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/* m_xline()
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*
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* parv[1] - thing to xline
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* parv[2] - optional type/reason
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* parv[3] - reason
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*/
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static int
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mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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struct ConfItem *aconf;
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const char *name;
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const char *reason;
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const char *target_server = NULL;
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int temp_time;
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int loc = 1;
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if(!IsOperXline(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "xline");
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return 0;
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}
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if((temp_time = valid_temp_time(parv[loc])) >= 0)
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loc++;
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/* we just set temp_time to -1! */
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else
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temp_time = 0;
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name = parv[loc];
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loc++;
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/* XLINE <gecos> ON <server> :<reason> */
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if(parc >= loc+2 && !irccmp(parv[loc], "ON"))
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{
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if(!IsOperRemoteBan(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "remoteban");
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return 0;
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}
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target_server = parv[loc+1];
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loc += 2;
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}
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if(parc <= loc || EmptyString(parv[loc]))
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{
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sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
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me.name, source_p->name, "XLINE");
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return 0;
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}
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reason = parv[loc];
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if(target_server != NULL)
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{
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propagate_xline(source_p, target_server, temp_time,
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name, "2", reason);
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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 if(rb_dlink_list_length(&cluster_conf_list) > 0)
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cluster_xline(source_p, temp_time, name, reason);
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if((aconf = find_xline_mask(name)) != NULL)
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{
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sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
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me.name, source_p->name, name, aconf->name, aconf->passwd);
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return 0;
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}
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if(!valid_xline(source_p, name, reason))
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return 0;
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apply_xline(source_p, name, reason, temp_time);
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return 0;
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}
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/* ms_xline()
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*
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* handles a remote xline
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*/
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static int
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ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* parv[0] parv[1] parv[2] parv[3] parv[4]
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* oper target serv xline type reason
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*/
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propagate_xline(source_p, parv[1], 0, parv[2], parv[3], parv[4]);
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if(!IsPerson(source_p))
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return 0;
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/* destined for me? */
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if(!match(parv[1], me.name))
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return 0;
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handle_remote_xline(source_p, 0, parv[2], parv[4]);
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return 0;
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}
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static int
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me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* time name type :reason */
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if(!IsPerson(source_p))
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return 0;
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handle_remote_xline(source_p, atoi(parv[1]), parv[2], parv[4]);
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return 0;
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}
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static void
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handle_remote_xline(struct Client *source_p, int temp_time,
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const char *name, const char *reason)
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{
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struct ConfItem *aconf;
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if(!find_shared_conf(source_p->username, source_p->host,
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source_p->servptr->name,
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(temp_time > 0) ? SHARED_TXLINE : SHARED_PXLINE))
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return;
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if(!valid_xline(source_p, name, reason))
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return;
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/* already xlined */
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if((aconf = find_xline_mask(name)) != NULL)
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{
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sendto_one_notice(source_p, ":[%s] already X-Lined by [%s] - %s", name, aconf->name, aconf->passwd);
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return;
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}
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apply_xline(source_p, name, reason, temp_time);
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}
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/* valid_xline()
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*
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* inputs - client xlining, gecos, reason and whether to warn
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* outputs -
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* side effects - checks the xline for validity, erroring if needed
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*/
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static int
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valid_xline(struct Client *source_p, const char *gecos,
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const char *reason)
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{
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if(EmptyString(reason))
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{
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sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
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get_id(&me, source_p),
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get_id(source_p, source_p), "XLINE");
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return 0;
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}
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if(strchr(reason, ':') != NULL)
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{
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sendto_one_notice(source_p,
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":Invalid character ':' in comment");
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return 0;
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}
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if(strchr(reason, '"'))
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{
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sendto_one_notice(source_p,
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":Invalid character '\"' in comment");
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return 0;
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}
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if(!valid_wild_card_simple(gecos))
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{
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sendto_one_notice(source_p,
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":Please include at least %d non-wildcard "
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"characters with the xline",
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ConfigFileEntry.min_nonwildcard_simple);
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return 0;
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}
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return 1;
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}
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void
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apply_xline(struct Client *source_p, const char *name, const char *reason,
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int temp_time)
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{
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struct ConfItem *aconf;
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aconf = make_conf();
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aconf->status = CONF_XLINE;
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if(strstr(name, "\\s"))
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{
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char *tmp = LOCAL_COPY(name);
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char *orig = tmp;
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char *new = tmp;
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while(*orig)
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{
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if(*orig == '\\' && *(orig + 1) != '\0')
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{
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if(*(orig + 1) == 's')
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{
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*new++ = ' ';
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orig += 2;
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}
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/* otherwise skip that and the escaped
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* character after it, so we dont mistake
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* \\s as \s --fl
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*/
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else
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{
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*new++ = *orig++;
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*new++ = *orig++;
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}
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}
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else
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*new++ = *orig++;
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}
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*new = '\0';
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DupString(aconf->name, tmp);
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}
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else
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DupString(aconf->name, name);
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DupString(aconf->passwd, reason);
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collapse(aconf->name);
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if(temp_time > 0)
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{
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aconf->hold = CurrentTime + temp_time;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"%s added temporary %d min. X-Line for [%s] [%s]",
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get_oper_name(source_p), temp_time / 60,
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aconf->name, reason);
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ilog(L_KLINE, "X %s %d %s %s",
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get_oper_name(source_p), temp_time / 60,
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name, reason);
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sendto_one_notice(source_p, ":Added temporary %d min. X-Line [%s]",
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temp_time / 60, aconf->name);
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}
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else
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s added X-Line for [%s] [%s]",
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get_oper_name(source_p),
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aconf->name, aconf->passwd);
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sendto_one_notice(source_p, ":Added X-Line for [%s] [%s]",
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aconf->name, aconf->passwd);
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write_xline(source_p, aconf);
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ilog(L_KLINE, "X %s 0 %s %s",
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get_oper_name(source_p), name, reason);
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}
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dlinkAddAlloc(aconf, &xline_conf_list);
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check_xlines();
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}
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/* write_xline()
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*
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* inputs - gecos, reason, xline type
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* outputs - writes an xline to the config
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* side effects -
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*/
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static void
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write_xline(struct Client *source_p, struct ConfItem *aconf)
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{
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char buffer[BUFSIZE * 2];
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FILE *out;
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const char *filename;
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filename = ConfigFileEntry.xlinefile;
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if((out = fopen(filename, "a")) == NULL)
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem opening %s ", filename);
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sendto_one_notice(source_p, ":*** Problem opening file, xline added temporarily only");
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return;
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}
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rb_sprintf(buffer, "\"%s\",\"0\",\"%s\",\"%s\",%ld\n",
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aconf->name, aconf->passwd,
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get_oper_name(source_p), CurrentTime);
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if(fputs(buffer, out) == -1)
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem writing to %s", filename);
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sendto_one_notice(source_p, ":*** Problem writing to file, xline added temporarily only");
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fclose(out);
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return;
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}
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if(fclose(out))
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "*** Problem writing to %s", filename);
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sendto_one_notice(source_p, ":*** Problem writing to file, xline added temporarily only");
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return;
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}
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}
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static void
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propagate_xline(struct Client *source_p, const char *target,
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int temp_time, const char *name, const char *type,
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const char *reason)
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{
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if(!temp_time)
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{
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sendto_match_servs(source_p, target, CAP_CLUSTER, NOCAPS,
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"XLINE %s %s %s :%s",
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target, name, type, reason);
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sendto_match_servs(source_p, target, CAP_ENCAP, CAP_CLUSTER,
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"ENCAP %s XLINE %d %s 2 :%s",
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target, temp_time, name, reason);
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}
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else
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sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
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"ENCAP %s XLINE %d %s %s :%s",
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target, temp_time, name, type, reason);
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}
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static void
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cluster_xline(struct Client *source_p, int temp_time, const char *name,
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const char *reason)
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{
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struct remote_conf *shared_p;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
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{
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shared_p = ptr->data;
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/* old protocol cant handle temps, and we dont really want
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* to convert them to perm.. --fl
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*/
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if(!temp_time)
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{
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if(!(shared_p->flags & SHARED_PXLINE))
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continue;
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sendto_match_servs(source_p, shared_p->server, CAP_CLUSTER, NOCAPS,
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"XLINE %s %s 2 :%s",
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shared_p->server, name, reason);
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, CAP_CLUSTER,
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"ENCAP %s XLINE 0 %s 2 :%s",
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shared_p->server, name, reason);
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}
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else if(shared_p->flags & SHARED_TXLINE)
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, NOCAPS,
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"ENCAP %s XLINE %d %s 2 :%s",
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shared_p->server, temp_time, name, reason);
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}
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}
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/* mo_unxline()
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*
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* parv[1] - thing to unxline
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*/
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static int
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mo_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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if(!IsOperXline(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "xline");
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return 0;
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}
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if(parc == 4 && !(irccmp(parv[2], "ON")))
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{
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if(!IsOperRemoteBan(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "remoteban");
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return 0;
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}
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propagate_generic(source_p, "UNXLINE", parv[3], CAP_CLUSTER,
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"%s", parv[1]);
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if(match(parv[3], me.name) == 0)
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return 0;
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}
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else if(rb_dlink_list_length(&cluster_conf_list))
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cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER,
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"%s", parv[1]);
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remove_xline(source_p, parv[1]);
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return 0;
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}
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/* ms_unxline()
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*
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* handles a remote unxline
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*/
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static int
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ms_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* parv[0] parv[1] parv[2]
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* oper target server gecos
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*/
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propagate_generic(source_p, "UNXLINE", parv[1], CAP_CLUSTER,
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"%s", parv[2]);
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if(!match(parv[1], me.name))
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return 0;
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if(!IsPerson(source_p))
|
|
return 0;
|
|
|
|
handle_remote_unxline(source_p, parv[2]);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
me_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
|
|
{
|
|
/* name */
|
|
if(!IsPerson(source_p))
|
|
return 0;
|
|
|
|
handle_remote_unxline(source_p, parv[1]);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
handle_remote_unxline(struct Client *source_p, const char *name)
|
|
{
|
|
if(!find_shared_conf(source_p->username, source_p->host,
|
|
source_p->servptr->name, SHARED_UNXLINE))
|
|
return;
|
|
|
|
remove_xline(source_p, name);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
remove_xline(struct Client *source_p, const char *name)
|
|
{
|
|
struct ConfItem *aconf;
|
|
rb_dlink_node *ptr;
|
|
|
|
RB_DLINK_FOREACH(ptr, xline_conf_list.head)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(!irccmp(aconf->name, name))
|
|
{
|
|
if (!aconf->hold)
|
|
{
|
|
if (!remove_xline_from_file(source_p, name))
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
sendto_one_notice(source_p,
|
|
":X-Line for [%s] is removed",
|
|
name);
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s has removed the temporary X-Line for: [%s]",
|
|
get_oper_name(source_p), name);
|
|
ilog(L_KLINE, "UX %s %s",
|
|
get_oper_name(source_p), name);
|
|
}
|
|
|
|
remove_reject_mask(aconf->name, NULL);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &xline_conf_list);
|
|
return;
|
|
}
|
|
}
|
|
|
|
sendto_one_notice(source_p, ":No X-Line for %s", name);
|
|
|
|
return;
|
|
}
|
|
|
|
/* remove_xline_from_file()
|
|
*
|
|
* inputs - gecos to remove
|
|
* outputs -
|
|
* side effects - removes xline from conf, if exists
|
|
* - does not touch xline_conf_list
|
|
*/
|
|
static int
|
|
remove_xline_from_file(struct Client *source_p, const char *huntgecos)
|
|
{
|
|
FILE *in, *out;
|
|
char buf[BUFSIZE];
|
|
char buff[BUFSIZE];
|
|
char temppath[BUFSIZE];
|
|
const char *filename;
|
|
const char *gecos;
|
|
mode_t oldumask;
|
|
char *p;
|
|
int error_on_write = 0;
|
|
int found_xline = 0;
|
|
|
|
filename = ConfigFileEntry.xlinefile;
|
|
rb_snprintf(temppath, sizeof(temppath),
|
|
"%s.tmp", ConfigFileEntry.xlinefile);
|
|
|
|
if((in = fopen(filename, "r")) == NULL)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot open %s", filename);
|
|
return 0;
|
|
}
|
|
|
|
oldumask = umask(0);
|
|
|
|
if((out = fopen(temppath, "w")) == NULL)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot open %s", temppath);
|
|
fclose(in);
|
|
umask(oldumask);
|
|
return 0;
|
|
}
|
|
|
|
umask(oldumask);
|
|
|
|
while (fgets(buf, sizeof(buf), in))
|
|
{
|
|
if(error_on_write)
|
|
{
|
|
if(temppath != NULL)
|
|
(void) unlink(temppath);
|
|
|
|
break;
|
|
}
|
|
|
|
strlcpy(buff, buf, sizeof(buff));
|
|
|
|
if((p = strchr(buff, '\n')) != NULL)
|
|
*p = '\0';
|
|
|
|
if((*buff == '\0') || (*buff == '#'))
|
|
{
|
|
error_on_write = (fputs(buf, out) < 0) ? YES : NO;
|
|
continue;
|
|
}
|
|
|
|
if((gecos = getfield(buff)) == NULL)
|
|
{
|
|
error_on_write = (fputs(buf, out) < 0) ? YES : NO;
|
|
continue;
|
|
}
|
|
|
|
/* matching.. */
|
|
if(irccmp(gecos, huntgecos) == 0)
|
|
found_xline++;
|
|
else
|
|
error_on_write = (fputs(buf, out) < 0) ? YES : NO;
|
|
}
|
|
|
|
fclose(in);
|
|
if (fclose(out))
|
|
error_on_write = YES;
|
|
|
|
if(error_on_write)
|
|
{
|
|
sendto_one_notice(source_p,
|
|
":Couldn't write temp xline file, aborted");
|
|
return 0;
|
|
}
|
|
else if(found_xline == 0)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot find X-Line for %s in file", huntgecos);
|
|
|
|
if(temppath != NULL)
|
|
(void) unlink(temppath);
|
|
return 0;
|
|
}
|
|
|
|
if (rename(temppath, filename))
|
|
{
|
|
sendto_one_notice(source_p, ":Couldn't rename temp file, aborted");
|
|
return 0;
|
|
}
|
|
|
|
sendto_one_notice(source_p, ":X-Line for [%s] is removed", huntgecos);
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s has removed the X-Line for: [%s]",
|
|
get_oper_name(source_p), huntgecos);
|
|
ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), huntgecos);
|
|
|
|
return 1;
|
|
}
|