944 lines
23 KiB
C
944 lines
23 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_kline.c: Bans/unbans a user.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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* $Id: m_kline.c 3466 2007-05-19 23:36:51Z jilles $
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*/
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#include "stdinc.h"
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#include "tools.h"
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#include "channel.h"
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#include "class.h"
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#include "client.h"
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#include "common.h"
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#include "irc_string.h"
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#include "sprintf_irc.h"
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#include "ircd.h"
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#include "hostmask.h"
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#include "numeric.h"
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#include "commio.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "s_log.h"
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#include "send.h"
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#include "hash.h"
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#include "s_serv.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 "event.h"
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#include "reject.h"
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static int mo_kline(struct Client *, struct Client *, int, const char **);
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static int ms_kline(struct Client *, struct Client *, int, const char **);
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static int me_kline(struct Client *, struct Client *, int, const char **);
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static int mo_unkline(struct Client *, struct Client *, int, const char **);
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static int ms_unkline(struct Client *, struct Client *, int, const char **);
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static int me_unkline(struct Client *, struct Client *, int, const char **);
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struct Message kline_msgtab = {
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"KLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_kline, 5}, {ms_kline, 5}, {me_kline, 5}, {mo_kline, 3}}
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};
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struct Message unkline_msgtab = {
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"UNKLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_unkline, 4}, {ms_unkline, 4}, {me_unkline, 3}, {mo_unkline, 2}}
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};
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mapi_clist_av1 kline_clist[] = { &kline_msgtab, &unkline_msgtab, NULL };
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DECLARE_MODULE_AV1(kline, NULL, NULL, kline_clist, NULL, NULL, "$Revision: 3466 $");
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/* Local function prototypes */
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static int find_user_host(struct Client *source_p, const char *userhost, char *user, char *host);
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static int valid_comment(struct Client *source_p, char *comment);
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static int valid_user_host(struct Client *source_p, const char *user, const char *host);
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static int valid_wild_card(struct Client *source_p, const char *user, const char *host);
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static void handle_remote_kline(struct Client *source_p, int tkline_time,
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const char *user, const char *host, const char *reason);
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static void apply_kline(struct Client *source_p, struct ConfItem *aconf,
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const char *reason, const char *oper_reason, const char *current_date);
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static void apply_tkline(struct Client *source_p, struct ConfItem *aconf,
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const char *, const char *, const char *, int);
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static int already_placed_kline(struct Client *, const char *, const char *, int);
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static void handle_remote_unkline(struct Client *source_p,
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const char *user, const char *host);
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static void remove_permkline_match(struct Client *, struct ConfItem *);
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static int flush_write(struct Client *, FILE *, const char *, const char *);
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static int remove_temp_kline(struct Client *, struct ConfItem *);
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/* mo_kline()
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*
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* parv[1] - temp time or user@host
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* parv[2] - user@host, "ON", or reason
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* parv[3] - "ON", reason, or server to target
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* parv[4] - server to target, or reason
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* parv[5] - reason
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*/
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static int
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mo_kline(struct Client *client_p, struct Client *source_p,
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int parc, const char **parv)
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{
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char def[] = "No Reason";
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char user[USERLEN + 2];
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char host[HOSTLEN + 2];
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char buffer[IRCD_BUFSIZE];
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char *reason = def;
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char *oper_reason;
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const char *current_date;
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const char *target_server = NULL;
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struct ConfItem *aconf;
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int tkline_time = 0;
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int loc = 1;
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if(!IsOperK(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, "kline");
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return 0;
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}
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if((tkline_time = valid_temp_time(parv[loc])) >= 0)
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loc++;
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/* we just set tkline_time to -1! */
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else
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tkline_time = 0;
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if(find_user_host(source_p, parv[loc], user, host) == 0)
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return 0;
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loc++;
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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, "KLINE");
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return 0;
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}
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reason = LOCAL_COPY(parv[loc]);
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if(target_server != NULL)
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{
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propagate_generic(source_p, "KLINE", target_server, CAP_KLN,
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"%d %s %s :%s",
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tkline_time, user, host, reason);
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/* If we are sending it somewhere that doesnt include us, stop */
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if(!match(target_server, me.name))
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return 0;
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}
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/* if we have cluster servers, send it to them.. */
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else if(dlink_list_length(&cluster_conf_list) > 0)
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cluster_generic(source_p, "KLINE",
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(tkline_time > 0) ? SHARED_TKLINE : SHARED_PKLINE, CAP_KLN,
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"%lu %s %s :%s",
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tkline_time, user, host, reason);
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if(!valid_user_host(source_p, user, host) ||
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!valid_wild_card(source_p, user, host) ||
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!valid_comment(source_p, reason))
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return 0;
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if(already_placed_kline(source_p, user, host, tkline_time))
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return 0;
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set_time();
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current_date = smalldate();
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aconf = make_conf();
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aconf->status = CONF_KILL;
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DupString(aconf->host, host);
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DupString(aconf->user, user);
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aconf->port = 0;
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/* Look for an oper reason */
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if((oper_reason = strchr(reason, '|')) != NULL)
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{
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*oper_reason = '\0';
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oper_reason++;
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if(!EmptyString(oper_reason))
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DupString(aconf->spasswd, oper_reason);
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}
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if(tkline_time > 0)
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{
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ircsnprintf(buffer, sizeof(buffer),
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"Temporary K-line %d min. - %s (%s)",
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(int) (tkline_time / 60), reason, current_date);
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DupString(aconf->passwd, buffer);
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apply_tkline(source_p, aconf, reason, oper_reason, current_date, tkline_time);
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}
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else
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{
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ircsnprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date);
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DupString(aconf->passwd, buffer);
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apply_kline(source_p, aconf, reason, oper_reason, current_date);
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}
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if(ConfigFileEntry.kline_delay)
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{
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if(kline_queued == 0)
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{
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eventAddOnce("check_klines", check_klines_event, NULL,
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ConfigFileEntry.kline_delay);
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kline_queued = 1;
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}
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}
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else
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check_klines();
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return 0;
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}
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/* ms_kline()
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*
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* parv[1] - server targeted at
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* parv[2] - tkline time (0 if perm)
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* parv[3] - user
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* parv[4] - host
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* parv[5] - reason
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*/
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static int
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ms_kline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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int tkline_time = atoi(parv[2]);
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/* 1.5-3 and earlier contains a bug that allows remote klines to be
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* sent with an empty reason field. This is a protocol violation,
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* but its not worth dropping the link over.. --anfl
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*/
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if(parc < 6 || EmptyString(parv[5]))
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return 0;
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propagate_generic(source_p, "KLINE", parv[1], CAP_KLN,
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"%d %s %s :%s",
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tkline_time, parv[3], parv[4], parv[5]);
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if(!match(parv[1], me.name))
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return 0;
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if(!IsPerson(source_p))
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return 0;
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handle_remote_kline(source_p, tkline_time, parv[3], parv[4], parv[5]);
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return 0;
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}
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static int
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me_kline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* <tkline_time> <user> <host> :<reason> */
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if(!IsPerson(source_p))
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return 0;
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handle_remote_kline(source_p, atoi(parv[1]), parv[2], parv[3], parv[4]);
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return 0;
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}
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static void
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handle_remote_kline(struct Client *source_p, int tkline_time,
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const char *user, const char *host, const char *kreason)
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{
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char buffer[BUFSIZE];
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const char *current_date;
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char *reason = LOCAL_COPY(kreason);
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struct ConfItem *aconf = NULL;
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char *oper_reason;
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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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(tkline_time > 0) ? SHARED_TKLINE : SHARED_PKLINE))
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return;
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if(!valid_user_host(source_p, user, host) ||
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!valid_wild_card(source_p, user, host) ||
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!valid_comment(source_p, reason))
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return;
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if(already_placed_kline(source_p, user, host, tkline_time))
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return;
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aconf = make_conf();
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aconf->status = CONF_KILL;
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DupString(aconf->user, user);
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DupString(aconf->host, host);
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/* Look for an oper reason */
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if((oper_reason = strchr(reason, '|')) != NULL)
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{
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*oper_reason = '\0';
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oper_reason++;
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if(!EmptyString(oper_reason))
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DupString(aconf->spasswd, oper_reason);
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}
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current_date = smalldate();
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if(tkline_time > 0)
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{
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ircsnprintf(buffer, sizeof(buffer),
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"Temporary K-line %d min. - %s (%s)",
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(int) (tkline_time / 60), reason, current_date);
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DupString(aconf->passwd, buffer);
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apply_tkline(source_p, aconf, reason, oper_reason, current_date, tkline_time);
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}
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else
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{
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ircsnprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date);
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DupString(aconf->passwd, buffer);
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apply_kline(source_p, aconf, reason, oper_reason, current_date);
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}
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if(ConfigFileEntry.kline_delay)
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{
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if(kline_queued == 0)
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{
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eventAddOnce("check_klines", check_klines_event, NULL,
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ConfigFileEntry.kline_delay);
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kline_queued = 1;
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}
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}
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else
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check_klines();
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return;
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}
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/* mo_unkline()
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*
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* parv[1] - kline to remove
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* parv[2] - optional "ON"
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* parv[3] - optional target server
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*/
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static int
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mo_unkline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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const char *user;
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char *host;
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char splat[] = "*";
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char *h = LOCAL_COPY(parv[1]);
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struct ConfItem *aconf;
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if(!IsOperUnkline(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, "unkline");
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return 0;
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}
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if((host = strchr(h, '@')) || *h == '*' || strchr(h, '.') || strchr(h, ':'))
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{
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/* Explicit user@host mask given */
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if(host) /* Found user@host */
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{
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*host++ = '\0';
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/* check for @host */
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if(*h)
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user = h;
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else
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user = splat;
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/* check for user@ */
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if(!*host)
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host = splat;
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}
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else
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{
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user = splat; /* no @ found, assume its *@somehost */
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host = h;
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}
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}
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else
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{
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sendto_one_notice(source_p, ":Invalid parameters");
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return 0;
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}
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/* possible remote kline.. */
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if((parc > 3) && (irccmp(parv[2], "ON") == 0))
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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, "UNKLINE", parv[3], CAP_UNKLN,
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"%s %s", user, host);
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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(dlink_list_length(&cluster_conf_list) > 0)
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cluster_generic(source_p, "UNKLINE", SHARED_UNKLINE, CAP_UNKLN,
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"%s %s", user, host);
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aconf = find_exact_conf_by_address(host, CONF_KILL, user);
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if(aconf == NULL)
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{
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sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host);
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return 0;
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}
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if(remove_temp_kline(source_p, aconf))
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return 0;
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remove_permkline_match(source_p, aconf);
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return 0;
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}
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/* ms_unkline()
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*
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* parv[1] - target server
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* parv[2] - user to unkline
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* parv[3] - host to unkline
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*/
|
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static int
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ms_unkline(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]
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* oper target server user host */
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propagate_generic(source_p, "UNKLINE", parv[1], CAP_UNKLN,
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"%s %s", parv[2], parv[3]);
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if(!match(parv[1], me.name))
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return 0;
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if(!IsPerson(source_p))
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return 0;
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handle_remote_unkline(source_p, parv[2], parv[3]);
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return 0;
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}
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|
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static int
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me_unkline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
|
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{
|
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/* user host */
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if(!IsPerson(source_p))
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return 0;
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handle_remote_unkline(source_p, parv[1], parv[2]);
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return 0;
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}
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|
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static void
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handle_remote_unkline(struct Client *source_p, const char *user, const char *host)
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{
|
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struct ConfItem *aconf;
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|
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if(!find_shared_conf(source_p->username, source_p->host,
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source_p->servptr->name, SHARED_UNKLINE))
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return;
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aconf = find_exact_conf_by_address(host, CONF_KILL, user);
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if(aconf == NULL)
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{
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sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host);
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return;
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}
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|
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if(remove_temp_kline(source_p, aconf))
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return;
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|
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remove_permkline_match(source_p, aconf);
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}
|
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|
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/* apply_kline()
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*
|
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* inputs -
|
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* output - NONE
|
|
* side effects - kline as given, is added to the hashtable
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* and conf file
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|
*/
|
|
static void
|
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apply_kline(struct Client *source_p, struct ConfItem *aconf,
|
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const char *reason, const char *oper_reason, const char *current_date)
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{
|
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add_conf_by_address(aconf->host, CONF_KILL, aconf->user, aconf);
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write_confitem(KLINE_TYPE, source_p, aconf->user, aconf->host,
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reason, oper_reason, current_date, 0);
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}
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|
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/* apply_tkline()
|
|
*
|
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* inputs -
|
|
* output - NONE
|
|
* side effects - tkline as given is placed
|
|
*/
|
|
static void
|
|
apply_tkline(struct Client *source_p, struct ConfItem *aconf,
|
|
const char *reason, const char *oper_reason, const char *current_date, int tkline_time)
|
|
{
|
|
aconf->hold = CurrentTime + tkline_time;
|
|
add_temp_kline(aconf);
|
|
|
|
/* no oper reason.. */
|
|
if(EmptyString(oper_reason))
|
|
{
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s added temporary %d min. K-Line for [%s@%s] [%s]",
|
|
get_oper_name(source_p), tkline_time / 60,
|
|
aconf->user, aconf->host, reason);
|
|
ilog(L_KLINE, "K %s %d %s %s %s",
|
|
get_oper_name(source_p), tkline_time / 60,
|
|
aconf->user, aconf->host, reason);
|
|
}
|
|
else
|
|
{
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s added temporary %d min. K-Line for [%s@%s] [%s|%s]",
|
|
get_oper_name(source_p), tkline_time / 60,
|
|
aconf->user, aconf->host, reason, oper_reason);
|
|
ilog(L_KLINE, "K %s %d %s %s %s|%s",
|
|
get_oper_name(source_p), tkline_time / 60,
|
|
aconf->user, aconf->host, reason, oper_reason);
|
|
}
|
|
|
|
sendto_one_notice(source_p, ":Added temporary %d min. K-Line [%s@%s]",
|
|
tkline_time / 60, aconf->user, aconf->host);
|
|
}
|
|
|
|
/* find_user_host()
|
|
*
|
|
* inputs - client placing kline, user@host, user buffer, host buffer
|
|
* output - 0 if not ok to kline, 1 to kline i.e. if valid user host
|
|
* side effects -
|
|
*/
|
|
static int
|
|
find_user_host(struct Client *source_p, const char *userhost, char *luser, char *lhost)
|
|
{
|
|
char *hostp;
|
|
|
|
hostp = strchr(userhost, '@');
|
|
|
|
if(hostp != NULL) /* I'm a little user@host */
|
|
{
|
|
*(hostp++) = '\0'; /* short and squat */
|
|
if(*userhost)
|
|
strlcpy(luser, userhost, USERLEN + 1); /* here is my user */
|
|
else
|
|
strcpy(luser, "*");
|
|
if(*hostp)
|
|
strlcpy(lhost, hostp, HOSTLEN + 1); /* here is my host */
|
|
else
|
|
strcpy(lhost, "*");
|
|
}
|
|
else
|
|
{
|
|
/* no '@', no '.', so its not a user@host or host, therefore
|
|
* its a nick, which support was removed for.
|
|
*/
|
|
if(strchr(userhost, '.') == NULL && strchr(userhost, ':') == NULL)
|
|
return 0;
|
|
|
|
luser[0] = '*'; /* no @ found, assume its *@somehost */
|
|
luser[1] = '\0';
|
|
strlcpy(lhost, userhost, HOSTLEN + 1);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* valid_user_host()
|
|
*
|
|
* inputs - user buffer, host buffer
|
|
* output - 0 if invalid, 1 if valid
|
|
* side effects -
|
|
*/
|
|
static int
|
|
valid_user_host(struct Client *source_p, const char *luser, const char *lhost)
|
|
{
|
|
/* # is invalid, as is '!' (n!u@h kline) */
|
|
if(strchr(lhost, '#') || strchr(luser, '#') || strchr(luser, '!'))
|
|
{
|
|
sendto_one_notice(source_p, ":Invalid K-Line");
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* valid_wild_card()
|
|
*
|
|
* input - user buffer, host buffer
|
|
* output - 0 if invalid, 1 if valid
|
|
* side effects -
|
|
*/
|
|
static int
|
|
valid_wild_card(struct Client *source_p, const char *luser, const char *lhost)
|
|
{
|
|
const char *p;
|
|
char tmpch;
|
|
int nonwild = 0;
|
|
int bitlen;
|
|
|
|
/* user has no wildcards, always accept -- jilles */
|
|
if (!strchr(luser, '?') && !strchr(luser, '*'))
|
|
return 1;
|
|
|
|
/* check there are enough non wildcard chars */
|
|
p = luser;
|
|
while ((tmpch = *p++))
|
|
{
|
|
if(!IsKWildChar(tmpch))
|
|
{
|
|
/* found enough chars, return */
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard)
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* try host, as user didnt contain enough */
|
|
/* special case for cidr masks -- jilles */
|
|
if ((p = strrchr(lhost, '/')) != NULL && IsDigit(p[1]))
|
|
{
|
|
bitlen = atoi(p + 1);
|
|
/* much like non-cidr for ipv6, rather arbitrary for ipv4 */
|
|
if (bitlen > 0 && bitlen >= (strchr(lhost, ':') ? 4 * (ConfigFileEntry.min_nonwildcard - nonwild) : 6 - 2 * nonwild))
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
p = lhost;
|
|
while ((tmpch = *p++))
|
|
{
|
|
if(!IsKWildChar(tmpch))
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard)
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
sendto_one_notice(source_p,
|
|
":Please include at least %d non-wildcard "
|
|
"characters with the user@host",
|
|
ConfigFileEntry.min_nonwildcard);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* valid_comment
|
|
* inputs - pointer to client
|
|
* - pointer to comment
|
|
* output - 0 if no valid comment, 1 if valid
|
|
* side effects - NONE
|
|
*/
|
|
static int
|
|
valid_comment(struct Client *source_p, char *comment)
|
|
{
|
|
if(strchr(comment, '"'))
|
|
{
|
|
sendto_one_notice(source_p, ":Invalid character '\"' in comment");
|
|
return 0;
|
|
}
|
|
|
|
if(strlen(comment) > BANREASONLEN)
|
|
comment[BANREASONLEN] = '\0';
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* already_placed_kline()
|
|
*
|
|
* inputs - source to notify, user@host to check, tkline time
|
|
* outputs - 1 if a perm kline or a tkline when a tkline is being
|
|
* set exists, else 0
|
|
* side effects - notifies source_p kline exists
|
|
*/
|
|
/* Note: This currently works if the new K-line is a special case of an
|
|
* existing K-line, but not the other way round. To do that we would
|
|
* have to walk the hash and check every existing K-line. -A1kmm.
|
|
*/
|
|
static int
|
|
already_placed_kline(struct Client *source_p, const char *luser, const char *lhost, int tkline)
|
|
{
|
|
const char *reason, *p;
|
|
struct irc_sockaddr_storage iphost, *piphost;
|
|
struct ConfItem *aconf;
|
|
int t, bits;
|
|
|
|
aconf = find_exact_conf_by_address(lhost, CONF_KILL, luser);
|
|
if (aconf == NULL && ConfigFileEntry.non_redundant_klines)
|
|
{
|
|
bits = 0;
|
|
if((t = parse_netmask(lhost, (struct sockaddr *)&iphost, &bits)) != HM_HOST)
|
|
{
|
|
#ifdef IPV6
|
|
if(t == HM_IPV6)
|
|
t = AF_INET6;
|
|
else
|
|
#endif
|
|
t = AF_INET;
|
|
|
|
piphost = &iphost;
|
|
}
|
|
else
|
|
piphost = NULL;
|
|
|
|
aconf = find_conf_by_address(lhost, NULL, NULL, (struct sockaddr *)piphost, CONF_KILL, t, luser);
|
|
if (aconf != NULL)
|
|
{
|
|
/* The above was really a lookup of a single IP,
|
|
* so check if the new kline is wider than the
|
|
* existing one.
|
|
* -- jilles
|
|
*/
|
|
p = strchr(aconf->host, '/');
|
|
if (bits > 0 && (p == NULL || bits < atoi(p + 1)))
|
|
aconf = NULL;
|
|
}
|
|
}
|
|
if (aconf != NULL)
|
|
{
|
|
/* setting a tkline, or existing one is perm */
|
|
if(tkline || ((aconf->flags & CONF_FLAGS_TEMPORARY) == 0))
|
|
{
|
|
reason = aconf->passwd ? aconf->passwd : "<No Reason>";
|
|
|
|
sendto_one_notice(source_p,
|
|
":[%s@%s] already K-Lined by [%s@%s] - %s",
|
|
luser, lhost, aconf->user,
|
|
aconf->host, reason);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* remove_permkline_match()
|
|
*
|
|
* hunts for a permanent kline, and removes it.
|
|
*/
|
|
static void
|
|
remove_permkline_match(struct Client *source_p, struct ConfItem *aconf)
|
|
{
|
|
FILE *in, *out;
|
|
int pairme = 0;
|
|
int error_on_write = NO;
|
|
char buf[BUFSIZE];
|
|
char matchbuf[BUFSIZE];
|
|
char temppath[BUFSIZE];
|
|
const char *filename;
|
|
const char *host, *user;
|
|
mode_t oldumask;
|
|
int matchlen;
|
|
|
|
host = aconf->host;
|
|
user = aconf->user;
|
|
|
|
ircsnprintf(temppath, sizeof(temppath),
|
|
"%s.tmp", ConfigFileEntry.klinefile);
|
|
|
|
filename = get_conf_name(KLINE_TYPE);
|
|
|
|
if((in = fopen(filename, "r")) == 0)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot open %s", filename);
|
|
return;
|
|
}
|
|
|
|
oldumask = umask(0);
|
|
if((out = fopen(temppath, "w")) == 0)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot open %s", temppath);
|
|
fclose(in);
|
|
umask(oldumask);
|
|
return;
|
|
}
|
|
|
|
umask(oldumask);
|
|
|
|
snprintf(matchbuf, sizeof(matchbuf), "\"%s\",\"%s\"", user, host);
|
|
matchlen = strlen(matchbuf);
|
|
|
|
while (fgets(buf, sizeof(buf), in))
|
|
{
|
|
if(error_on_write)
|
|
break;
|
|
|
|
if(!strncasecmp(buf, matchbuf, matchlen))
|
|
{
|
|
pairme++;
|
|
break;
|
|
}
|
|
else
|
|
error_on_write = flush_write(source_p, out, buf, temppath);
|
|
}
|
|
|
|
/* we dropped out of the loop early because we found a match,
|
|
* to drop into this somewhat faster loop as we presume we'll never
|
|
* have two matching klines --anfl
|
|
*/
|
|
if(pairme && !error_on_write)
|
|
{
|
|
while(fgets(buf, sizeof(buf), in))
|
|
{
|
|
if(error_on_write)
|
|
break;
|
|
|
|
error_on_write = flush_write(source_p, out, buf, temppath);
|
|
}
|
|
}
|
|
|
|
fclose(in);
|
|
if (fclose(out))
|
|
error_on_write = YES;
|
|
|
|
/* The result of the rename should be checked too... oh well */
|
|
/* If there was an error on a write above, then its been reported
|
|
* and I am not going to trash the original kline /conf file
|
|
*/
|
|
if(error_on_write)
|
|
{
|
|
sendto_one_notice(source_p, ":Couldn't write temp kline file, aborted");
|
|
return;
|
|
}
|
|
else if(!pairme)
|
|
{
|
|
sendto_one_notice(source_p, ":Cannot find K-Line for %s@%s in file",
|
|
user, host);
|
|
|
|
if(temppath != NULL)
|
|
(void) unlink(temppath);
|
|
|
|
return;
|
|
}
|
|
|
|
if (rename(temppath, filename))
|
|
{
|
|
sendto_one_notice(source_p, ":Couldn't rename temp file, aborted");
|
|
return;
|
|
}
|
|
|
|
sendto_one_notice(source_p, ":K-Line for [%s@%s] is removed",
|
|
user, host);
|
|
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s has removed the K-Line for: [%s@%s]",
|
|
get_oper_name(source_p), user, host);
|
|
|
|
ilog(L_KLINE, "UK %s %s %s",
|
|
get_oper_name(source_p), user, host);
|
|
|
|
remove_reject_mask(aconf->user, aconf->host);
|
|
delete_one_address_conf(aconf->host, aconf);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* flush_write()
|
|
*
|
|
* inputs - pointer to client structure of oper requesting unkline
|
|
* - out is the file descriptor
|
|
* - buf is the buffer to write
|
|
* - ntowrite is the expected number of character to be written
|
|
* - temppath is the temporary file name to be written
|
|
* output - YES for error on write
|
|
* - NO for success
|
|
* side effects - if successful, the buf is written to output file
|
|
* if a write failure happesn, and the file pointed to
|
|
* by temppath, if its non NULL, is removed.
|
|
*
|
|
* The idea here is, to be as robust as possible when writing to the
|
|
* kline file.
|
|
*
|
|
* -Dianora
|
|
*/
|
|
|
|
static int
|
|
flush_write(struct Client *source_p, FILE * out, const char *buf, const char *temppath)
|
|
{
|
|
int error_on_write = (fputs(buf, out) < 0) ? YES : NO;
|
|
|
|
if(error_on_write)
|
|
{
|
|
sendto_one_notice(source_p, ":Unable to write to %s",
|
|
temppath);
|
|
if(temppath != NULL)
|
|
(void) unlink(temppath);
|
|
}
|
|
return (error_on_write);
|
|
}
|
|
|
|
/* remove_temp_kline()
|
|
*
|
|
* inputs - username, hostname to unkline
|
|
* outputs -
|
|
* side effects - tries to unkline anything that matches
|
|
*/
|
|
static int
|
|
remove_temp_kline(struct Client *source_p, struct ConfItem *aconf)
|
|
{
|
|
dlink_node *ptr;
|
|
int i;
|
|
|
|
for (i = 0; i < LAST_TEMP_TYPE; i++)
|
|
{
|
|
DLINK_FOREACH(ptr, temp_klines[i].head)
|
|
{
|
|
if (aconf == ptr->data)
|
|
{
|
|
sendto_one_notice(source_p,
|
|
":Un-klined [%s@%s] from temporary k-lines",
|
|
aconf->user, aconf->host);
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s has removed the temporary K-Line for: [%s@%s]",
|
|
get_oper_name(source_p), aconf->user, aconf->host);
|
|
|
|
ilog(L_KLINE, "UK %s %s %s",
|
|
get_oper_name(source_p),
|
|
aconf->user, aconf->host);
|
|
dlinkDestroy(ptr, &temp_klines[i]);
|
|
remove_reject_mask(aconf->user, aconf->host);
|
|
delete_one_address_conf(aconf->host, aconf);
|
|
return YES;
|
|
}
|
|
}
|
|
}
|
|
|
|
return NO;
|
|
}
|