797 lines
16 KiB
C
797 lines
16 KiB
C
/*
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* ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
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* s_newconf.c - code for dealing with conf stuff
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*
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* Copyright (C) 2004 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2004-2005 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: s_newconf.c 3508 2007-06-04 16:04:49Z jilles $
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*/
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#include "stdinc.h"
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#include "ircd_defs.h"
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#include "common.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "client.h"
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#include "s_serv.h"
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#include "send.h"
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#include "hostmask.h"
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#include "newconf.h"
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#include "hash.h"
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#include "irc_dictionary.h"
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rb_dlink_list shared_conf_list;
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rb_dlink_list cluster_conf_list;
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rb_dlink_list oper_conf_list;
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rb_dlink_list hubleaf_conf_list;
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rb_dlink_list server_conf_list;
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rb_dlink_list xline_conf_list;
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rb_dlink_list resv_conf_list; /* nicks only! */
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rb_dlink_list nd_list; /* nick delay */
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rb_dlink_list tgchange_list;
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rb_patricia_tree_t *tgchange_tree;
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static rb_bh *nd_heap = NULL;
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static void expire_temp_rxlines(void *unused);
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static void expire_nd_entries(void *unused);
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struct ev_entry *expire_nd_entries_ev = NULL;
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struct ev_entry *expire_temp_rxlines_ev = NULL;
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void
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init_s_newconf(void)
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{
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tgchange_tree = rb_new_patricia(PATRICIA_BITS);
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nd_heap = rb_bh_create(sizeof(struct nd_entry), ND_HEAP_SIZE, "nd_heap");
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expire_nd_entries_ev = rb_event_addish("expire_nd_entries", expire_nd_entries, NULL, 30);
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expire_temp_rxlines_ev = rb_event_addish("expire_temp_rxlines", expire_temp_rxlines, NULL, 60);
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}
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void
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clear_s_newconf(void)
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{
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struct server_conf *server_p;
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rb_dlink_node *ptr;
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rb_dlink_node *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, shared_conf_list.head)
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{
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/* ptr here is ptr->data->node */
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rb_dlinkDelete(ptr, &shared_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, cluster_conf_list.head)
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{
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rb_dlinkDelete(ptr, &cluster_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, hubleaf_conf_list.head)
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{
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rb_dlinkDelete(ptr, &hubleaf_conf_list);
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free_remote_conf(ptr->data);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, oper_conf_list.head)
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{
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free_oper_conf(ptr->data);
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rb_dlinkDestroy(ptr, &oper_conf_list);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, server_conf_list.head)
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{
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server_p = ptr->data;
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if(!server_p->servers)
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{
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rb_dlinkDelete(ptr, &server_conf_list);
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free_server_conf(ptr->data);
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}
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else
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server_p->flags |= SERVER_ILLEGAL;
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}
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}
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void
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clear_s_newconf_bans(void)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr, *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(aconf->hold)
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continue;
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free_conf(aconf);
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rb_dlinkDestroy(ptr, &xline_conf_list);
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}
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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/* temporary resv */
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if(aconf->hold)
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continue;
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free_conf(aconf);
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rb_dlinkDestroy(ptr, &resv_conf_list);
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}
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clear_resv_hash();
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}
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struct remote_conf *
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make_remote_conf(void)
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{
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struct remote_conf *remote_p = rb_malloc(sizeof(struct remote_conf));
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return remote_p;
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}
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void
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free_remote_conf(struct remote_conf *remote_p)
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{
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s_assert(remote_p != NULL);
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if(remote_p == NULL)
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return;
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rb_free(remote_p->username);
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rb_free(remote_p->host);
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rb_free(remote_p->server);
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rb_free(remote_p);
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}
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int
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find_shared_conf(const char *username, const char *host,
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const char *server, int flags)
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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, shared_conf_list.head)
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{
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shared_p = ptr->data;
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if(match(shared_p->username, username) &&
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match(shared_p->host, host) &&
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match(shared_p->server, server))
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{
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if(shared_p->flags & flags)
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return YES;
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else
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return NO;
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}
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}
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return NO;
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}
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void
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propagate_generic(struct Client *source_p, const char *command,
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const char *target, int cap, const char *format, ...)
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{
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char buffer[BUFSIZE];
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va_list args;
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va_start(args, format);
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rb_vsnprintf(buffer, sizeof(buffer), format, args);
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va_end(args);
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sendto_match_servs(source_p, target, cap, NOCAPS,
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"%s %s %s",
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command, target, buffer);
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sendto_match_servs(source_p, target, CAP_ENCAP, cap,
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"ENCAP %s %s %s",
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target, command, buffer);
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}
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void
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cluster_generic(struct Client *source_p, const char *command,
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int cltype, int cap, const char *format, ...)
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{
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char buffer[BUFSIZE];
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struct remote_conf *shared_p;
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va_list args;
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rb_dlink_node *ptr;
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va_start(args, format);
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rb_vsnprintf(buffer, sizeof(buffer), format, args);
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va_end(args);
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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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if(!(shared_p->flags & cltype))
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continue;
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sendto_match_servs(source_p, shared_p->server, cap, NOCAPS,
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"%s %s %s",
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command, shared_p->server, buffer);
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, cap,
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"ENCAP %s %s %s",
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shared_p->server, command, buffer);
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}
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}
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struct oper_conf *
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make_oper_conf(void)
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{
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struct oper_conf *oper_p = rb_malloc(sizeof(struct oper_conf));
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return oper_p;
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}
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void
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free_oper_conf(struct oper_conf *oper_p)
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{
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s_assert(oper_p != NULL);
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if(oper_p == NULL)
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return;
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rb_free(oper_p->username);
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rb_free(oper_p->host);
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rb_free(oper_p->name);
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if(oper_p->passwd)
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{
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memset(oper_p->passwd, 0, strlen(oper_p->passwd));
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rb_free(oper_p->passwd);
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}
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#ifdef HAVE_LIBCRYPTO
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rb_free(oper_p->rsa_pubkey_file);
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if(oper_p->rsa_pubkey)
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RSA_free(oper_p->rsa_pubkey);
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#endif
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rb_free(oper_p);
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}
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struct oper_conf *
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find_oper_conf(const char *username, const char *host, const char *locip, const char *name)
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{
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struct oper_conf *oper_p;
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struct rb_sockaddr_storage ip, cip;
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char addr[HOSTLEN+1];
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int bits, cbits;
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rb_dlink_node *ptr;
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parse_netmask(locip, (struct sockaddr *)&cip, &cbits);
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RB_DLINK_FOREACH(ptr, oper_conf_list.head)
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{
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oper_p = ptr->data;
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/* name/username doesnt match.. */
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if(irccmp(oper_p->name, name) || !match(oper_p->username, username))
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continue;
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rb_strlcpy(addr, oper_p->host, sizeof(addr));
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if(parse_netmask(addr, (struct sockaddr *)&ip, &bits) != HM_HOST)
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{
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if(ip.ss_family == cip.ss_family &&
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comp_with_mask_sock((struct sockaddr *)&ip, (struct sockaddr *)&cip, bits))
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return oper_p;
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}
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/* we have to compare against the host as well, because its
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* valid to set a spoof to an IP, which if we only compare
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* in ip form to sockhost will not necessarily match --anfl
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*/
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if(match(oper_p->host, host))
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return oper_p;
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}
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return NULL;
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}
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struct server_conf *
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make_server_conf(void)
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{
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struct server_conf *server_p = rb_malloc(sizeof(struct server_conf));
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server_p->aftype = AF_INET;
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return server_p;
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}
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void
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free_server_conf(struct server_conf *server_p)
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{
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s_assert(server_p != NULL);
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if(server_p == NULL)
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return;
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if(!EmptyString(server_p->passwd))
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{
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memset(server_p->passwd, 0, strlen(server_p->passwd));
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rb_free(server_p->passwd);
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}
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if(!EmptyString(server_p->spasswd))
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{
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memset(server_p->spasswd, 0, strlen(server_p->spasswd));
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rb_free(server_p->spasswd);
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}
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rb_free(server_p->name);
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rb_free(server_p->host);
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rb_free(server_p->class_name);
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rb_free(server_p);
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}
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void
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add_server_conf(struct server_conf *server_p)
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{
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if(EmptyString(server_p->class_name))
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{
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server_p->class_name = rb_strdup("default");
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server_p->class = default_class;
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return;
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}
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server_p->class = find_class(server_p->class_name);
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if(server_p->class == default_class)
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{
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conf_report_error("Warning connect::class invalid for %s",
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server_p->name);
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rb_free(server_p->class_name);
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server_p->class_name = rb_strdup("default");
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}
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if(strchr(server_p->host, '*') || strchr(server_p->host, '?'))
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return;
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}
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struct server_conf *
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find_server_conf(const char *name)
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{
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struct server_conf *server_p;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, server_conf_list.head)
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{
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server_p = ptr->data;
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if(ServerConfIllegal(server_p))
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continue;
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if(match(name, server_p->name))
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return server_p;
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}
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return NULL;
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}
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void
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attach_server_conf(struct Client *client_p, struct server_conf *server_p)
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{
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/* already have an attached conf */
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if(client_p->localClient->att_sconf)
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{
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/* short circuit this special case :) */
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if(client_p->localClient->att_sconf == server_p)
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return;
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detach_server_conf(client_p);
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}
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CurrUsers(server_p->class)++;
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client_p->localClient->att_sconf = server_p;
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server_p->servers++;
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}
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void
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detach_server_conf(struct Client *client_p)
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{
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struct server_conf *server_p = client_p->localClient->att_sconf;
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if(server_p == NULL)
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return;
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client_p->localClient->att_sconf = NULL;
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server_p->servers--;
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CurrUsers(server_p->class)--;
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if(ServerConfIllegal(server_p) && !server_p->servers)
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{
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/* the class this one is using may need destroying too */
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if(MaxUsers(server_p->class) < 0 && CurrUsers(server_p->class) <= 0)
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free_class(server_p->class);
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rb_dlinkDelete(&server_p->node, &server_conf_list);
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free_server_conf(server_p);
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}
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}
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void
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set_server_conf_autoconn(struct Client *source_p, const char *name, int newval)
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{
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struct server_conf *server_p;
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if((server_p = find_server_conf(name)) != NULL)
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{
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if(newval)
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server_p->flags |= SERVER_AUTOCONN;
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else
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server_p->flags &= ~SERVER_AUTOCONN;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"%s has changed AUTOCONN for %s to %i",
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get_oper_name(source_p), name, newval);
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}
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else
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sendto_one_notice(source_p, ":Can't find %s", name);
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}
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void
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disable_server_conf_autoconn(const char *name)
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{
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struct server_conf *server_p;
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server_p = find_server_conf(name);
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if(server_p != NULL && server_p->flags & SERVER_AUTOCONN)
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{
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server_p->flags &= ~SERVER_AUTOCONN;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"Disabling AUTOCONN for %s because of error",
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name);
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ilog(L_SERVER, "Disabling AUTOCONN for %s because of error",
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name);
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}
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}
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struct ConfItem *
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find_xline(const char *gecos, int counter)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(match_esc(aconf->host, gecos))
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{
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if(counter)
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aconf->port++;
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return aconf;
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}
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}
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return NULL;
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}
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struct ConfItem *
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find_xline_mask(const char *gecos)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(!irccmp(aconf->host, gecos))
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return aconf;
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}
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return NULL;
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}
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struct ConfItem *
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find_nick_resv(const char *name)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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if(match_esc(aconf->host, name))
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{
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aconf->port++;
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return aconf;
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}
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}
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return NULL;
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}
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struct ConfItem *
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find_nick_resv_mask(const char *name)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, resv_conf_list.head)
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{
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aconf = ptr->data;
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if(!irccmp(aconf->host, name))
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return aconf;
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}
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return NULL;
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}
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|
/* clean_resv_nick()
|
|
*
|
|
* inputs - nick
|
|
* outputs - 1 if nick is vaild resv, 0 otherwise
|
|
* side effects -
|
|
*/
|
|
int
|
|
clean_resv_nick(const char *nick)
|
|
{
|
|
char tmpch;
|
|
int as = 0;
|
|
int q = 0;
|
|
int ch = 0;
|
|
|
|
if(*nick == '-' || IsDigit(*nick))
|
|
return 0;
|
|
|
|
while ((tmpch = *nick++))
|
|
{
|
|
if(tmpch == '?' || tmpch == '@' || tmpch == '#')
|
|
q++;
|
|
else if(tmpch == '*')
|
|
as++;
|
|
else if(IsNickChar(tmpch))
|
|
ch++;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
if(!ch && as)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* valid_wild_card_simple()
|
|
*
|
|
* inputs - "thing" to test
|
|
* outputs - 1 if enough wildcards, else 0
|
|
* side effects -
|
|
*/
|
|
int
|
|
valid_wild_card_simple(const char *data)
|
|
{
|
|
const char *p;
|
|
char tmpch;
|
|
int nonwild = 0;
|
|
int wild = 0;
|
|
|
|
/* check the string for minimum number of nonwildcard chars */
|
|
p = data;
|
|
|
|
while((tmpch = *p++))
|
|
{
|
|
/* found an escape, p points to the char after it, so skip
|
|
* that and move on.
|
|
*/
|
|
if(tmpch == '\\' && *p)
|
|
{
|
|
p++;
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
|
|
return 1;
|
|
}
|
|
else if(!IsMWildChar(tmpch))
|
|
{
|
|
/* if we have enough nonwildchars, return */
|
|
if(++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
|
|
return 1;
|
|
}
|
|
else
|
|
wild++;
|
|
}
|
|
|
|
/* strings without wilds are also ok */
|
|
return wild == 0;
|
|
}
|
|
|
|
time_t
|
|
valid_temp_time(const char *p)
|
|
{
|
|
time_t result = 0;
|
|
|
|
while(*p)
|
|
{
|
|
if(IsDigit(*p))
|
|
{
|
|
result *= 10;
|
|
result += ((*p) & 0xF);
|
|
p++;
|
|
}
|
|
else
|
|
return -1;
|
|
}
|
|
|
|
if(result > (60 * 24 * 7 * 52))
|
|
result = (60 * 24 * 7 * 52);
|
|
|
|
return(result * 60);
|
|
}
|
|
|
|
static void
|
|
expire_temp_rxlines(void *unused)
|
|
{
|
|
struct ConfItem *aconf;
|
|
rb_dlink_node *ptr;
|
|
rb_dlink_node *next_ptr;
|
|
int i;
|
|
|
|
HASH_WALK_SAFE(i, R_MAX, ptr, next_ptr, resvTable)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary RESV for [%s] expired",
|
|
aconf->host);
|
|
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &resvTable[i]);
|
|
}
|
|
}
|
|
HASH_WALK_END
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary RESV for [%s] expired",
|
|
aconf->host);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &resv_conf_list);
|
|
}
|
|
}
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head)
|
|
{
|
|
aconf = ptr->data;
|
|
|
|
if(aconf->hold && aconf->hold <= rb_current_time())
|
|
{
|
|
if(ConfigFileEntry.tkline_expire_notices)
|
|
sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"Temporary X-line for [%s] expired",
|
|
aconf->host);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &xline_conf_list);
|
|
}
|
|
}
|
|
}
|
|
|
|
unsigned long
|
|
get_nd_count(void)
|
|
{
|
|
return(rb_dlink_list_length(&nd_list));
|
|
}
|
|
|
|
void
|
|
add_nd_entry(const char *name)
|
|
{
|
|
struct nd_entry *nd;
|
|
|
|
if(irc_dictionary_find(nd_dict, name) != NULL)
|
|
return;
|
|
|
|
nd = rb_bh_alloc(nd_heap);
|
|
|
|
rb_strlcpy(nd->name, name, sizeof(nd->name));
|
|
nd->expire = rb_current_time() + ConfigFileEntry.nick_delay;
|
|
|
|
/* this list is ordered */
|
|
rb_dlinkAddTail(nd, &nd->lnode, &nd_list);
|
|
|
|
irc_dictionary_add(nd_dict, nd->name, nd);
|
|
}
|
|
|
|
void
|
|
free_nd_entry(struct nd_entry *nd)
|
|
{
|
|
irc_dictionary_delete(nd_dict, nd->name);
|
|
|
|
rb_dlinkDelete(&nd->lnode, &nd_list);
|
|
rb_bh_free(nd_heap, nd);
|
|
}
|
|
|
|
void
|
|
expire_nd_entries(void *unused)
|
|
{
|
|
struct nd_entry *nd;
|
|
rb_dlink_node *ptr;
|
|
rb_dlink_node *next_ptr;
|
|
|
|
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, nd_list.head)
|
|
{
|
|
nd = ptr->data;
|
|
|
|
/* this list is ordered - we can stop when we hit the first
|
|
* entry that doesnt expire..
|
|
*/
|
|
if(nd->expire > rb_current_time())
|
|
return;
|
|
|
|
free_nd_entry(nd);
|
|
}
|
|
}
|
|
|
|
void
|
|
add_tgchange(const char *host)
|
|
{
|
|
tgchange *target;
|
|
rb_patricia_node_t *pnode;
|
|
|
|
if(find_tgchange(host))
|
|
return;
|
|
|
|
target = rb_malloc(sizeof(tgchange));
|
|
pnode = make_and_lookup(tgchange_tree, host);
|
|
|
|
pnode->data = target;
|
|
target->pnode = pnode;
|
|
|
|
target->ip = rb_strdup(host);
|
|
target->expiry = rb_current_time() + (60*60*12);
|
|
|
|
rb_dlinkAdd(target, &target->node, &tgchange_list);
|
|
}
|
|
|
|
tgchange *
|
|
find_tgchange(const char *host)
|
|
{
|
|
rb_patricia_node_t *pnode;
|
|
|
|
if((pnode = rb_match_exact_string(tgchange_tree, host)))
|
|
return pnode->data;
|
|
|
|
return NULL;
|
|
}
|
|
|