Add bandb IRCd APIs.
This commit is contained in:
William Pitcock
parent
5783a86050
commit
83595e6016
3 changed files with 467 additions and 0 deletions
19
include/bandbi.h
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19
include/bandbi.h
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@ -0,0 +1,19 @@
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#ifndef INCLUDED_bandbi_h
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#define INCLUDED_bandbi_h
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void init_bandb(void);
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typedef enum
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{
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BANDB_KLINE,
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BANDB_DLINE,
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BANDB_XLINE,
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BANDB_RESV,
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LAST_BANDB_TYPE
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} bandb_type;
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void bandb_add(bandb_type, struct Client *source_p, const char *mask1,
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const char *mask2, const char *reason, const char *oper_reason, int perm);
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void bandb_del(bandb_type, const char *mask1, const char *mask2);
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void bandb_rehash_bans(void);
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#endif
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@ -54,6 +54,7 @@ lex.yy.c: ircd_lexer.l
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${LEX} ircd_lexer.l
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SRCS = \
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bandbi.c \
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blacklist.c \
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cache.c \
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channel.c \
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447
src/bandbi.c
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447
src/bandbi.c
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@ -0,0 +1,447 @@
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/* src/bandbi.c
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* An interface to the ban db.
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*
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* Copyright (C) 2006 Lee Hardy <lee -at- leeh.co.uk>
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* Copyright (C) 2006 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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* $Id$
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*/
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#include "stdinc.h"
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#include "ratbox_lib.h"
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#include "client.h"
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#include "s_conf.h"
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#include "logger.h"
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#include "match.h"
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#include "bandbi.h"
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#include "parse.h"
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#include "channel.h"
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#include "hostmask.h"
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#include "hash.h"
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#include "s_newconf.h"
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#include "reject.h"
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#include "send.h"
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#include "ircd.h"
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#include "msg.h" /* XXX: MAXPARA */
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static char bandb_add_letter[LAST_BANDB_TYPE] = {
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'K', 'D', 'X', 'R'
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};
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rb_dlink_list bandb_pending;
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static rb_helper *bandb_helper;
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static int start_bandb(void);
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static void bandb_parse(rb_helper *);
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static void bandb_restart_cb(rb_helper *);
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static char *bandb_path;
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void
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init_bandb(void)
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{
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if(start_bandb())
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{
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ilog(L_MAIN, "Unable to start bandb helper: %s", strerror(errno));
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exit(0);
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}
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}
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static int
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start_bandb(void)
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{
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char fullpath[PATH_MAX + 1];
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#ifdef _WIN32
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const char *suffix = ".exe";
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#else
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const char *suffix = "";
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#endif
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rb_setenv("BANDB_DPATH", ConfigFileEntry.dpath, 1);
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if(bandb_path == NULL)
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{
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rb_snprintf(fullpath, sizeof(fullpath), "%s/bandb%s", BINPATH, suffix);
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if(access(fullpath, X_OK) == -1)
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{
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rb_snprintf(fullpath, sizeof(fullpath), "%s/bin/bandb%s",
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ConfigFileEntry.dpath, suffix);
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if(access(fullpath, X_OK) == -1)
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{
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ilog(L_MAIN,
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"Unable to execute bandb in %s or %s/bin",
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BINPATH, ConfigFileEntry.dpath);
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return 0;
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}
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}
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bandb_path = rb_strdup(fullpath);
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}
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bandb_helper = rb_helper_start("bandb", bandb_path, bandb_parse, bandb_restart_cb);
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if(bandb_helper == NULL)
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{
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ilog(L_MAIN, "Unable to start bandb: %s", strerror(errno));
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "Unable to start bandb: %s",
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strerror(errno));
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return 1;
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}
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rb_helper_run(bandb_helper);
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return 0;
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}
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void
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bandb_add(bandb_type type, struct Client *source_p, const char *mask1,
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const char *mask2, const char *reason, const char *oper_reason, int perm)
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{
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static char buf[BUFSIZE];
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rb_snprintf(buf, sizeof(buf), "%c %s ", bandb_add_letter[type], mask1);
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if(!EmptyString(mask2))
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rb_snprintf_append(buf, sizeof(buf), "%s ", mask2);
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rb_snprintf_append(buf, sizeof(buf), "%s %ld %d :%s",
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get_oper_name(source_p), (long int)rb_current_time(), perm, reason);
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if(!EmptyString(oper_reason))
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rb_snprintf_append(buf, sizeof(buf), "|%s", oper_reason);
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rb_helper_write(bandb_helper, "%s", buf);
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}
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static char bandb_del_letter[LAST_BANDB_TYPE] = {
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'k', 'd', 'x', 'r'
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};
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void
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bandb_del(bandb_type type, const char *mask1, const char *mask2)
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{
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static char buf[BUFSIZE];
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buf[0] = '\0';
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rb_snprintf_append(buf, sizeof(buf), "%c %s", bandb_del_letter[type], mask1);
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if(!EmptyString(mask2))
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rb_snprintf_append(buf, sizeof(buf), " %s", mask2);
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rb_helper_write(bandb_helper, "%s", buf);
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}
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static void
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bandb_handle_ban(char *parv[], int parc)
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{
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struct ConfItem *aconf;
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char *p;
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int para = 1;
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aconf = make_conf();
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aconf->port = 0;
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if(parv[0][0] == 'K')
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aconf->user = rb_strdup(parv[para++]);
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aconf->host = rb_strdup(parv[para++]);
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aconf->passwd = rb_strdup(parv[para++]);
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switch (parv[0][0])
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{
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case 'K':
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aconf->status = CONF_KILL;
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break;
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case 'D':
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aconf->status = CONF_DLINE;
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break;
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case 'X':
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aconf->status = CONF_XLINE;
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break;
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case 'R':
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if(IsChannelName(aconf->host))
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aconf->status = CONF_RESV_CHANNEL;
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else
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aconf->status = CONF_RESV_NICK;
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break;
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}
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if((p = strchr(parv[para], '|')))
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{
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*p++ = '\0';
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aconf->spasswd = rb_strdup(p);
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}
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aconf->passwd = rb_strdup(parv[para]);
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rb_dlinkAddAlloc(aconf, &bandb_pending);
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}
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static int
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bandb_check_kline(struct ConfItem *aconf)
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{
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struct rb_sockaddr_storage daddr;
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struct ConfItem *kconf = NULL;
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int aftype;
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const char *p;
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aftype = parse_netmask(aconf->host, (struct sockaddr *)&daddr, NULL);
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if(aftype != HM_HOST)
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{
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#ifdef RB_IPV6
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if(aftype == HM_IPV6)
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aftype = AF_INET6;
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else
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#endif
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aftype = AF_INET;
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kconf = find_conf_by_address(aconf->host, NULL, NULL, (struct sockaddr *)&daddr,
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CONF_KILL, aftype, aconf->user, NULL);
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}
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else
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kconf = find_conf_by_address(aconf->host, NULL, NULL, NULL, CONF_KILL, 0, aconf->user, NULL);
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if(kconf && ((kconf->flags & CONF_FLAGS_TEMPORARY) == 0))
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return 0;
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for(p = aconf->user; *p; p++)
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{
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if(!IsUserChar(*p) && !IsKWildChar(*p))
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return 0;
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}
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for(p = aconf->host; *p; p++)
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{
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if(!IsHostChar(*p) && !IsKWildChar(*p))
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return 0;
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}
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return 1;
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}
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static int
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bandb_check_dline(struct ConfItem *aconf)
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{
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struct rb_sockaddr_storage daddr;
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/* struct ConfItem *dconf; */
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int bits;
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if(!parse_netmask(aconf->host, (struct sockaddr *)&daddr, &bits))
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return 0;
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return 1;
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}
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static int
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bandb_check_xline(struct ConfItem *aconf)
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{
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struct ConfItem *xconf;
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/* XXX perhaps convert spaces to \s? -- jilles */
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xconf = find_xline_mask(aconf->host);
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if(xconf != NULL && !(xconf->flags & CONF_FLAGS_TEMPORARY))
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return 0;
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return 1;
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}
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static int
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bandb_check_resv_channel(struct ConfItem *aconf)
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{
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const char *p;
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if(hash_find_resv(aconf->host) || strlen(aconf->host) > CHANNELLEN)
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return 0;
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for(p = aconf->host; *p; p++)
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{
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if(!IsChanChar(*p))
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return 0;
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}
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return 1;
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}
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static int
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bandb_check_resv_nick(struct ConfItem *aconf)
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{
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if(!clean_resv_nick(aconf->host))
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return 0;
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if(find_nick_resv(aconf->host))
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return 0;
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return 1;
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}
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static void
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bandb_handle_clear(void)
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{
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rb_dlink_node *ptr, *next_ptr;
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, bandb_pending.head)
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{
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free_conf(ptr->data);
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rb_dlinkDestroy(ptr, &bandb_pending);
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}
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}
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static void
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bandb_handle_finish(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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clear_out_address_conf_bans();
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clear_s_newconf_bans();
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RB_DLINK_FOREACH_SAFE(ptr, next_ptr, bandb_pending.head)
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{
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aconf = ptr->data;
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rb_dlinkDestroy(ptr, &bandb_pending);
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switch (aconf->status)
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{
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case CONF_KILL:
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if(bandb_check_kline(aconf))
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add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf);
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else
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free_conf(aconf);
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break;
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case CONF_DLINE:
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if(bandb_check_dline(aconf))
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add_conf_by_address(aconf->host, CONF_DLINE, aconf->user, NULL, aconf);
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else
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free_conf(aconf);
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break;
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case CONF_XLINE:
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if(bandb_check_xline(aconf))
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rb_dlinkAddAlloc(aconf, &xline_conf_list);
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else
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free_conf(aconf);
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break;
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case CONF_RESV_CHANNEL:
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if(bandb_check_resv_channel(aconf))
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add_to_resv_hash(aconf->host, aconf);
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else
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free_conf(aconf);
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break;
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case CONF_RESV_NICK:
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if(bandb_check_resv_nick(aconf))
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rb_dlinkAddAlloc(aconf, &resv_conf_list);
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else
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free_conf(aconf);
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break;
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}
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}
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check_banned_lines();
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}
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static void
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bandb_handle_failure(rb_helper *helper, char **parv, int parc)
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{
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if(server_state_foreground)
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fprintf(stderr, "bandb - bandb failure: %s\n", parv[1]);
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ilog(L_MAIN, "bandb - bandb failure: %s", parv[1]);
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "bandb - bandb failure: %s", parv[1]);
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exit(1);
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}
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static void
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bandb_parse(rb_helper *helper)
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{
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static char buf[READBUF_SIZE];
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char *parv[MAXPARA + 1];
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int len, parc;
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while((len = rb_helper_read(helper, buf, sizeof(buf))))
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{
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parc = rb_string_to_array(buf, parv, MAXPARA);
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if(parc < 1)
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continue;
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switch (parv[0][0])
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{
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case '!':
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bandb_handle_failure(helper, parv, parc);
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break;
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case 'K':
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case 'D':
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case 'X':
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case 'R':
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bandb_handle_ban(parv, parc);
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break;
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case 'C':
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bandb_handle_clear();
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case 'F':
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bandb_handle_finish();
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break;
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}
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}
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}
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void
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bandb_rehash_bans(void)
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{
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if(bandb_helper != NULL)
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rb_helper_write(bandb_helper, "L");
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}
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static void
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bandb_restart_cb(rb_helper *helper)
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{
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ilog(L_MAIN, "bandb - bandb_restart_cb called, bandb helper died?");
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"bandb - bandb_restart_cb called, bandb helper died?");
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if(helper != NULL)
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{
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rb_helper_close(helper);
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bandb_helper = NULL;
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}
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start_bandb();
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return;
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}
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