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solanum-vs-hackint-and-char.../modules/m_rehash.c
Elizabeth Myers 3c7d6fcce7 Message handlers should return void. 
Also fix up some return values and stuff to use bool (or void if
nothing). I just did it whilst I was here.

According to jilles, the return value used to signify whether or not the
client had exited. This was error-prone and was fixed a long, long time
ago, but the return value was left int for historical reasons.

Since the return type is not used (and has no clear use case anyway),
it's safe to just get rid of it.
2016-03-09 01:37:03 -06:00

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/*
* ircd-ratbox: A slightly useful ircd.
* m_rehash.c: Re-reads the configuration file.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include "stdinc.h"
#include "client.h"
#include "channel.h"
#include "common.h"
#include "match.h"
#include "ircd.h"
#include "s_serv.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_newconf.h"
#include "logger.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hostmask.h"
#include "reject.h"
#include "hash.h"
#include "cache.h"
#include "rb_radixtree.h"
#include "sslproc.h"
static const char rehash_desc[] =
"Provides the REHASH command to reload configuration and other files";
static void mo_rehash(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void me_rehash(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message rehash_msgtab = {
"REHASH", 0, 0, 0, 0,
{mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_rehash, 0}, {mo_rehash, 0}}
};
mapi_clist_av1 rehash_clist[] = { &rehash_msgtab, NULL };
DECLARE_MODULE_AV2(rehash, NULL, NULL, rehash_clist, NULL, NULL, NULL, NULL, rehash_desc);
struct hash_commands
{
const char *cmd;
void (*handler) (struct Client * source_p);
};
static void
rehash_bans_loc(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is rehashing bans",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
rehash_bans(0);
}
static void
rehash_dns(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is rehashing DNS",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
/* reread /etc/resolv.conf and reopen res socket */
restart_authd();
}
static void
rehash_ssld(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is restarting ssld",
get_oper_name(source_p));
restart_ssld();
}
static void
rehash_motd(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"%s is forcing re-reading of MOTD file",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
cache_user_motd();
}
static void
rehash_omotd(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"%s is forcing re-reading of OPER MOTD file",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
free_cachefile(oper_motd);
oper_motd = cache_file(OPATH, "opers.motd", 0);
}
static void
rehash_tklines(struct Client *source_p)
{
struct ConfItem *aconf;
rb_dlink_node *ptr, *next_ptr;
int i;
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing temp klines",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
for(i = 0; i < LAST_TEMP_TYPE; i++)
{
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, temp_klines[i].head)
{
aconf = ptr->data;
delete_one_address_conf(aconf->host, aconf);
rb_dlinkDestroy(ptr, &temp_klines[i]);
}
}
}
static void
rehash_tdlines(struct Client *source_p)
{
struct ConfItem *aconf;
rb_dlink_node *ptr, *next_ptr;
int i;
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing temp dlines",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
for(i = 0; i < LAST_TEMP_TYPE; i++)
{
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, temp_dlines[i].head)
{
aconf = ptr->data;
delete_one_address_conf(aconf->host, aconf);
rb_dlinkDestroy(ptr, &temp_dlines[i]);
}
}
}
static void
rehash_txlines(struct Client *source_p)
{
struct ConfItem *aconf;
rb_dlink_node *ptr;
rb_dlink_node *next_ptr;
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing temp xlines",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, xline_conf_list.head)
{
aconf = ptr->data;
if(!aconf->hold || aconf->lifetime)
continue;
free_conf(aconf);
rb_dlinkDestroy(ptr, &xline_conf_list);
}
}
static void
rehash_tresvs(struct Client *source_p)
{
struct ConfItem *aconf;
struct rb_radixtree_iteration_state iter;
rb_dlink_node *ptr;
rb_dlink_node *next_ptr;
int i;
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing temp resvs",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
RB_RADIXTREE_FOREACH(aconf, &iter, resv_tree)
{
if(!aconf->hold || aconf->lifetime)
continue;
rb_radixtree_delete(resv_tree, aconf->host);
free_conf(aconf);
}
RB_DLINK_FOREACH_SAFE(ptr, next_ptr, resv_conf_list.head)
{
aconf = ptr->data;
if(!aconf->hold || aconf->lifetime)
continue;
free_conf(aconf);
rb_dlinkDestroy(ptr, &resv_conf_list);
}
}
static void
rehash_rejectcache(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing reject cache",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
flush_reject();
}
static void
rehash_throttles(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s is clearing throttles",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
flush_throttle();
}
static void
rehash_help(struct Client *source_p)
{
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"%s is forcing re-reading of HELP files",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
load_help();
}
static void
rehash_nickdelay(struct Client *source_p)
{
struct nd_entry *nd;
rb_dlink_node *ptr;
rb_dlink_node *safe_ptr;
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"%s is clearing the nick delay table",
get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
RB_DLINK_FOREACH_SAFE(ptr, safe_ptr, nd_list.head)
{
nd = ptr->data;
free_nd_entry(nd);
}
}
/* *INDENT-OFF* */
static struct hash_commands rehash_commands[] =
{
{"BANS", rehash_bans_loc },
{"DNS", rehash_dns },
{"SSLD", rehash_ssld },
{"MOTD", rehash_motd },
{"OMOTD", rehash_omotd },
{"TKLINES", rehash_tklines },
{"TDLINES", rehash_tdlines },
{"TXLINES", rehash_txlines },
{"TRESVS", rehash_tresvs },
{"REJECTCACHE", rehash_rejectcache },
{"THROTTLES", rehash_throttles },
{"HELP", rehash_help },
{"NICKDELAY", rehash_nickdelay },
{NULL, NULL }
};
/* *INDENT-ON* */
static void
do_rehash(struct Client *source_p, const char *type)
{
if (type != NULL)
{
int x;
char cmdbuf[100];
for (x = 0; rehash_commands[x].cmd != NULL && rehash_commands[x].handler != NULL;
x++)
{
if(irccmp(type, rehash_commands[x].cmd) == 0)
{
sendto_one(source_p, form_str(RPL_REHASHING), me.name,
source_p->name, rehash_commands[x].cmd);
ilog(L_MAIN, "REHASH %s From %s[%s]", type,
get_oper_name(source_p), source_p->sockhost);
rehash_commands[x].handler(source_p);
remote_rehash_oper_p = NULL;
return;
}
}
/* We are still here..we didn't match */
cmdbuf[0] = '\0';
for (x = 0; rehash_commands[x].cmd != NULL && rehash_commands[x].handler != NULL;
x++)
{
rb_strlcat(cmdbuf, " ", sizeof(cmdbuf));
rb_strlcat(cmdbuf, rehash_commands[x].cmd, sizeof(cmdbuf));
}
sendto_one_notice(source_p, ":rehash one of:%s", cmdbuf);
}
else
{
sendto_one(source_p, form_str(RPL_REHASHING), me.name, source_p->name,
ConfigFileEntry.configfile);
sendto_realops_snomask(SNO_GENERAL, L_ALL,
"%s is rehashing server config file", get_oper_name(source_p));
if (!MyConnect(source_p))
remote_rehash_oper_p = source_p;
ilog(L_MAIN, "REHASH From %s[%s]", get_oper_name(source_p),
source_p->sockhost);
rehash(0);
remote_rehash_oper_p = NULL;
}
}
/*
* mo_rehash - REHASH message handler
*
* parv[1] = rehash type or destination
* parv[2] = destination
*/
static void
mo_rehash(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
const char *type = NULL, *target_server = NULL;
if(!IsOperRehash(source_p))
{
sendto_one(source_p, form_str(ERR_NOPRIVS),
me.name, source_p->name, "rehash");
return;
}
if (parc > 2)
type = parv[1], target_server = parv[2];
else if (parc > 1 && (strchr(parv[1], '.') || strchr(parv[1], '?') || strchr(parv[1], '*')))
type = NULL, target_server = parv[1];
else if (parc > 1)
type = parv[1], target_server = NULL;
else
type = NULL, target_server = NULL;
if (target_server != NULL)
{
if(!IsOperRemoteBan(source_p))
{
sendto_one(source_p, form_str(ERR_NOPRIVS),
me.name, source_p->name, "remoteban");
return;
}
sendto_match_servs(source_p, target_server,
CAP_ENCAP, NOCAPS,
"ENCAP %s REHASH %s",
target_server, type != NULL ? type : "");
if (match(target_server, me.name) == 0)
return;
}
do_rehash(source_p, type);
}
static void
me_rehash(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
if (!IsPerson(source_p))
return;
if (!find_shared_conf(source_p->username, source_p->host,
source_p->servptr->name, SHARED_REHASH))
return;
do_rehash(source_p, parc > 1 ? parv[1] : NULL);
}
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