elemental-ircd/modules/m_stats.c

/*
 *  ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
 *  m_stats.c: Sends the user statistics or config information.
 *
 *  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 "class.h"		/* report_classes */
#include "client.h"		/* Client */
#include "common.h"		/* TRUE/FALSE */
#include "match.h"
#include "ircd.h"		/* me */
#include "listener.h"		/* show_ports */
#include "msg.h"		/* Message */
#include "hostmask.h"		/* report_mtrie_conf_links */
#include "numeric.h"		/* ERR_xxx */
#include "scache.h"		/* list_scache */
#include "send.h"		/* sendto_one */
#include "s_conf.h"		/* ConfItem */
#include "s_serv.h"		/* hunt_server */
#include "s_stats.h"
#include "s_user.h"		/* show_opers */
#include "blacklist.h"		/* dnsbl stuff */
#include "parse.h"
#include "modules.h"
#include "hook.h"
#include "s_newconf.h"
#include "hash.h"
#include "reject.h"
#include "whowas.h"

static int m_stats (struct Client *, struct Client *, int, const char **);

struct Message stats_msgtab = {
    "STATS", 0, 0, 0, MFLG_SLOW,
    {mg_unreg, {m_stats, 2}, {m_stats, 3}, mg_ignore, mg_ignore, {m_stats, 2}}
};

int doing_stats_hook;
int doing_stats_p_hook;

mapi_clist_av1 stats_clist[] = { &stats_msgtab, NULL };
mapi_hlist_av1 stats_hlist[] = {
    { "doing_stats",	&doing_stats_hook },
    { "doing_stats_p",	&doing_stats_p_hook },
    { NULL, NULL }
};

DECLARE_MODULE_AV1(stats, NULL, NULL, stats_clist, stats_hlist, NULL, "$Revision: 1608 $");

const char *Lformat = "%s %u %u %u %u %u :%u %u %s";

static void stats_l_list(struct Client *s, const char *, int, int, rb_dlink_list *, char);
static void stats_l_client(struct Client *source_p, struct Client *target_p,
                           char statchar);

static void stats_spy(struct Client *, char, const char *);
static void stats_p_spy(struct Client *);

/* Heres our struct for the stats table */
struct StatsStruct {
    char letter;
    void (*handler) (struct Client *source_p);
    int need_oper;
    int need_admin;
};

static void stats_dns_servers(struct Client *);
static void stats_delay(struct Client *);
static void stats_hash(struct Client *);
static void stats_connect(struct Client *);
static void stats_tdeny(struct Client *);
static void stats_deny(struct Client *);
static void stats_exempt(struct Client *);
static void stats_events(struct Client *);
static void stats_prop_klines(struct Client *);
static void stats_hubleaf(struct Client *);
static void stats_auth(struct Client *);
static void stats_tklines(struct Client *);
static void stats_klines(struct Client *);
static void stats_messages(struct Client *);
static void stats_dnsbl(struct Client *);
static void stats_oper(struct Client *);
static void stats_privset(struct Client *);
static void stats_operedup(struct Client *);
static void stats_ports(struct Client *);
static void stats_tresv(struct Client *);
static void stats_resv(struct Client *);
static void stats_usage(struct Client *);
static void stats_tstats(struct Client *);
static void stats_uptime(struct Client *);
static void stats_shared(struct Client *);
static void stats_servers(struct Client *);
static void stats_tgecos(struct Client *);
static void stats_gecos(struct Client *);
static void stats_class(struct Client *);
static void stats_memory(struct Client *);
static void stats_servlinks(struct Client *);
static void stats_ltrace(struct Client *, int, const char **);
static void stats_ziplinks(struct Client *);
static void stats_comm(struct Client *);
/* This table contains the possible stats items, in order:
 * stats letter,  function to call, operonly? adminonly?
 * case only matters in the stats letter column.. -- fl_
 */
static struct StatsStruct stats_cmd_table[] = {
    /* letter     function        need_oper need_admin */
    {'a', stats_dns_servers,	1, 1, },
    {'A', stats_dns_servers,	1, 1, },
    {'b', stats_delay,		1, 1, },
    {'B', stats_hash,		1, 1, },
    {'c', stats_connect,		0, 0, },
    {'C', stats_connect,		0, 0, },
    {'d', stats_tdeny,		1, 0, },
    {'D', stats_deny,		1, 0, },
    {'e', stats_exempt,		1, 0, },
    {'E', stats_events,		1, 1, },
    {'f', stats_comm,		1, 1, },
    {'F', stats_comm,		1, 1, },
    {'g', stats_prop_klines,	1, 0, },
    {'h', stats_hubleaf,		0, 0, },
    {'H', stats_hubleaf,		0, 0, },
    {'i', stats_auth,		0, 0, },
    {'I', stats_auth,		0, 0, },
    {'k', stats_tklines,		0, 0, },
    {'K', stats_klines,		0, 0, },
    {'l', NULL /* special */,	0, 0, },
    {'L', NULL /* special */,	0, 0, },
    {'m', stats_messages,		0, 0, },
    {'M', stats_messages,		0, 0, },
    {'n', stats_dnsbl,		0, 0, },
    {'o', stats_oper,		0, 0, },
    {'O', stats_privset,		1, 0, },
    {'p', stats_operedup,		0, 0, },
    {'P', stats_ports,		0, 0, },
    {'q', stats_tresv,		1, 0, },
    {'Q', stats_resv,		1, 0, },
    {'r', stats_usage,		1, 0, },
    {'R', stats_usage,		1, 0, },
    {'t', stats_tstats,		1, 0, },
    {'T', stats_tstats,		1, 0, },
    {'u', stats_uptime,		0, 0, },
    {'U', stats_shared,		1, 0, },
    {'v', stats_servers,		0, 0, },
    {'V', stats_servers,		0, 0, },
    {'x', stats_tgecos,		1, 0, },
    {'X', stats_gecos,		1, 0, },
    {'y', stats_class,		0, 0, },
    {'Y', stats_class,		0, 0, },
    {'z', stats_memory,		1, 0, },
    {'Z', stats_ziplinks,		1, 0, },
    {'?', stats_servlinks,		0, 0, },
    {(char) 0, (void (*)()) 0, 	0, 0, }
};

/*
 * m_stats by fl_
 *      parv[1] = stat letter/command
 *      parv[2] = (if present) server/mask in stats L, or target
 *
 * This will search the tables for the appropriate stats letter,
 * if found execute it.
 */
static int
m_stats(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
    static time_t last_used = 0;
    int i;
    char statchar;

    statchar = parv[1][0];

    if(MyClient(source_p) && !IsOper(source_p)) {
        /* Check the user is actually allowed to do /stats, and isnt flooding */
        if((last_used + ConfigFileEntry.pace_wait) > rb_current_time()) {
            /* safe enough to give this on a local connect only */
            sendto_one(source_p, form_str(RPL_LOAD2HI),
                       me.name, source_p->name, "STATS");
            sendto_one_numeric(source_p, RPL_ENDOFSTATS,
                               form_str(RPL_ENDOFSTATS), statchar);
            return 0;
        } else
            last_used = rb_current_time();
    }

    if(hunt_server (client_p, source_p, ":%s STATS %s :%s", 2, parc, parv) != HUNTED_ISME)
        return 0;

    if((statchar != 'L') && (statchar != 'l'))
        stats_spy(source_p, statchar, NULL);

    for (i = 0; stats_cmd_table[i].letter; i++) {
        if(stats_cmd_table[i].letter == statchar) {
            /* The stats table says what privs are needed, so check --fl_ */
            /* Called for remote clients and for local opers, so check need_admin
             * and need_oper
             */
            if(stats_cmd_table[i].need_oper && !IsOper(source_p)) {
                sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                                   form_str (ERR_NOPRIVILEGES));
                break;
            }
            if(stats_cmd_table[i].need_admin && !IsOperAdmin(source_p)) {
                sendto_one(source_p, form_str(ERR_NOPRIVS),
                           me.name, source_p->name, "admin");
                break;
            }

            /* Blah, stats L needs the parameters, none of the others do.. */
            if(statchar == 'L' || statchar == 'l')
                stats_ltrace (source_p, parc, parv);
            else
                stats_cmd_table[i].handler (source_p);
        }
    }

    /* Send the end of stats notice, and the stats_spy */
    sendto_one_numeric(source_p, RPL_ENDOFSTATS,
                       form_str(RPL_ENDOFSTATS), statchar);

    return 0;
}

static void
stats_dns_servers (struct Client *source_p)
{
    report_dns_servers (source_p);
}

static void
stats_delay(struct Client *source_p)
{
    struct nd_entry *nd;
    struct DictionaryIter iter;

    DICTIONARY_FOREACH(nd, &iter, nd_dict) {
        sendto_one_notice(source_p, ":Delaying: %s for %ld",
                          nd->name, (long) nd->expire);
    }
}

static void
stats_hash(struct Client *source_p)
{
    hash_stats(source_p);
}

static void
stats_connect(struct Client *source_p)
{
    static char buf[5];
    struct server_conf *server_p;
    char *s;
    rb_dlink_node *ptr;

    if((ConfigFileEntry.stats_c_oper_only ||
        (ConfigServerHide.flatten_links && !IsExemptShide(source_p))) &&
       !IsOper(source_p)) {
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str(ERR_NOPRIVILEGES));
        return;
    }

    RB_DLINK_FOREACH(ptr, server_conf_list.head) {
        server_p = ptr->data;

        if(ServerConfIllegal(server_p))
            continue;

        buf[0] = '\0';
        s = buf;

        if(IsOper(source_p)) {
            if(ServerConfAutoconn(server_p))
                *s++ = 'A';
            if(ServerConfSSL(server_p))
                *s++ = 'S';
            if(ServerConfTb(server_p))
                *s++ = 'T';
            if(ServerConfCompressed(server_p))
                *s++ = 'Z';
        }

        if(!buf[0])
            *s++ = '*';

        *s = '\0';

        sendto_one_numeric(source_p, RPL_STATSCLINE,
                           form_str(RPL_STATSCLINE),
                           "*@127.0.0.1",
                           buf, server_p->name,
                           server_p->port, server_p->class_name);
    }
}

/* stats_tdeny()
 *
 * input	- client to report to
 * output	- none
 * side effects - client is given temp dline list.
 */
static void
stats_tdeny (struct Client *source_p)
{
    char *host, *pass, *user, *oper_reason;
    struct AddressRec *arec;
    struct ConfItem *aconf;
    int i;

    for (i = 0; i < ATABLE_SIZE; i++) {
        for (arec = atable[i]; arec; arec = arec->next) {
            if(arec->type == CONF_DLINE) {
                aconf = arec->aconf;

                if(!(aconf->flags & CONF_FLAGS_TEMPORARY))
                    continue;

                get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);

                sendto_one_numeric(source_p, RPL_STATSDLINE,
                                   form_str (RPL_STATSDLINE),
                                   'd', host, pass,
                                   oper_reason ? "|" : "",
                                   oper_reason ? oper_reason : "");
            }
        }
    }
}

/* stats_deny()
 *
 * input	- client to report to
 * output	- none
 * side effects - client is given dline list.
 */
static void
stats_deny (struct Client *source_p)
{
    char *host, *pass, *user, *oper_reason;
    struct AddressRec *arec;
    struct ConfItem *aconf;
    int i;

    for (i = 0; i < ATABLE_SIZE; i++) {
        for (arec = atable[i]; arec; arec = arec->next) {
            if(arec->type == CONF_DLINE) {
                aconf = arec->aconf;

                if(aconf->flags & CONF_FLAGS_TEMPORARY)
                    continue;

                get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);

                sendto_one_numeric(source_p, RPL_STATSDLINE,
                                   form_str (RPL_STATSDLINE),
                                   'D', host, pass,
                                   oper_reason ? "|" : "",
                                   oper_reason ? oper_reason : "");
            }
        }
    }
}


/* stats_exempt()
 *
 * input	- client to report to
 * output	- none
 * side effects - client is given list of exempt blocks
 */
static void
stats_exempt(struct Client *source_p)
{
    char *name, *host, *pass, *user, *classname;
    struct AddressRec *arec;
    struct ConfItem *aconf;
    int i, port;

    if(ConfigFileEntry.stats_e_disabled) {
        sendto_one_numeric(source_p, ERR_DISABLED,
                           form_str(ERR_DISABLED), "STATS e");
        return;
    }

    for (i = 0; i < ATABLE_SIZE; i++) {
        for (arec = atable[i]; arec; arec = arec->next) {
            if(arec->type == CONF_EXEMPTDLINE) {
                aconf = arec->aconf;
                get_printable_conf (aconf, &name, &host, &pass,
                                    &user, &port, &classname);

                sendto_one_numeric(source_p, RPL_STATSDLINE,
                                   form_str(RPL_STATSDLINE),
                                   'e', host, pass, "", "");
            }
        }
    }
}


static void
stats_events_cb(char *str, void *ptr)
{
    sendto_one_numeric(ptr, RPL_STATSDEBUG, "E :%s", str);
}

static void
stats_events (struct Client *source_p)
{
    rb_dump_events(stats_events_cb, source_p);
}

static void
stats_prop_klines(struct Client *source_p)
{
    struct ConfItem *aconf;
    rb_dlink_node *ptr;
    char *user, *host, *pass, *oper_reason;

    RB_DLINK_FOREACH(ptr, prop_bans.head) {
        aconf = ptr->data;

        /* Skip non-klines and deactivated klines. */
        if(aconf->status != CONF_KILL)
            continue;

        get_printable_kline(source_p, aconf, &host, &pass,
                            &user, &oper_reason);

        sendto_one_numeric(source_p, RPL_STATSKLINE,
                           form_str(RPL_STATSKLINE),
                           'g', host, user, pass,
                           oper_reason ? "|" : "",
                           oper_reason ? oper_reason : "");
    }
}

static void
stats_hubleaf(struct Client *source_p)
{
    struct remote_conf *hub_p;
    rb_dlink_node *ptr;

    if((ConfigFileEntry.stats_h_oper_only ||
        (ConfigServerHide.flatten_links && !IsExemptShide(source_p))) &&
       !IsOper(source_p)) {
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
        return;
    }

    RB_DLINK_FOREACH(ptr, hubleaf_conf_list.head) {
        hub_p = ptr->data;

        if(hub_p->flags & CONF_HUB)
            sendto_one_numeric(source_p, RPL_STATSHLINE,
                               form_str(RPL_STATSHLINE),
                               hub_p->host, hub_p->server);
        else
            sendto_one_numeric(source_p, RPL_STATSLLINE,
                               form_str(RPL_STATSLLINE),
                               hub_p->host, hub_p->server);
    }
}


static void
stats_auth (struct Client *source_p)
{
    /* Oper only, if unopered, return ERR_NOPRIVS */
    if((ConfigFileEntry.stats_i_oper_only == 2) && !IsOper (source_p))
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));

    /* If unopered, Only return matching auth blocks */
    else if((ConfigFileEntry.stats_i_oper_only == 1) && !IsOper (source_p)) {
        struct ConfItem *aconf;
        char *name, *host, *pass = "*", *user, *classname;
        int port;

        if(MyConnect (source_p))
            aconf = find_conf_by_address (source_p->host, source_p->sockhost, NULL,
                                          (struct sockaddr *)&source_p->localClient->ip,
                                          CONF_CLIENT,
                                          source_p->localClient->ip.ss_family,
                                          source_p->username, NULL);
        else
            aconf = find_conf_by_address (source_p->host, NULL, NULL, NULL, CONF_CLIENT,
                                          0, source_p->username, NULL);

        if(aconf == NULL)
            return;

        get_printable_conf (aconf, &name, &host, &pass, &user, &port, &classname);
        if(!EmptyString(aconf->spasswd))
            pass = aconf->spasswd;

        sendto_one_numeric(source_p, RPL_STATSILINE, form_str(RPL_STATSILINE),
                           name, pass, show_iline_prefix(source_p, aconf, user),
                           host, port, classname);
    }

    /* Theyre opered, or allowed to see all auth blocks */
    else
        report_auth (source_p);
}


static void
stats_tklines(struct Client *source_p)
{
    /* Oper only, if unopered, return ERR_NOPRIVS */
    if((ConfigFileEntry.stats_k_oper_only == 2) && !IsOper (source_p))
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));

    /* If unopered, Only return matching klines */
    else if((ConfigFileEntry.stats_k_oper_only == 1) && !IsOper (source_p)) {
        struct ConfItem *aconf;
        char *host, *pass, *user, *oper_reason;

        if(MyConnect (source_p))
            aconf = find_conf_by_address (source_p->host, source_p->sockhost, NULL,
                                          (struct sockaddr *)&source_p->localClient->ip,
                                          CONF_KILL,
                                          source_p->localClient->ip.ss_family,
                                          source_p->username, NULL);
        else
            aconf = find_conf_by_address (source_p->host, NULL, NULL, NULL, CONF_KILL,
                                          0, source_p->username, NULL);

        if(aconf == NULL)
            return;

        /* dont report a permanent kline as a tkline */
        if((aconf->flags & CONF_FLAGS_TEMPORARY) == 0)
            return;

        get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);

        sendto_one_numeric(source_p, RPL_STATSKLINE,
                           form_str(RPL_STATSKLINE), aconf->flags & CONF_FLAGS_TEMPORARY ? 'k' : 'K',
                           host, user, pass, oper_reason ? "|" : "",
                           oper_reason ? oper_reason : "");
    }
    /* Theyre opered, or allowed to see all klines */
    else {
        struct ConfItem *aconf;
        rb_dlink_node *ptr;
        int i;
        char *user, *host, *pass, *oper_reason;

        for(i = 0; i < LAST_TEMP_TYPE; i++) {
            RB_DLINK_FOREACH(ptr, temp_klines[i].head) {
                aconf = ptr->data;

                get_printable_kline(source_p, aconf, &host, &pass,
                                    &user, &oper_reason);

                sendto_one_numeric(source_p, RPL_STATSKLINE,
                                   form_str(RPL_STATSKLINE),
                                   'k', host, user, pass,
                                   oper_reason ? "|" : "",
                                   oper_reason ? oper_reason : "");
            }
        }
    }
}

static void
stats_klines(struct Client *source_p)
{
    /* Oper only, if unopered, return ERR_NOPRIVS */
    if((ConfigFileEntry.stats_k_oper_only == 2) && !IsOper (source_p))
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));

    /* If unopered, Only return matching klines */
    else if((ConfigFileEntry.stats_k_oper_only == 1) && !IsOper (source_p)) {
        struct ConfItem *aconf;
        char *host, *pass, *user, *oper_reason;

        /* search for a kline */
        if(MyConnect (source_p))
            aconf = find_conf_by_address (source_p->host, source_p->sockhost, NULL,
                                          (struct sockaddr *)&source_p->localClient->ip,
                                          CONF_KILL,
                                          source_p->localClient->ip.ss_family,
                                          source_p->username, NULL);
        else
            aconf = find_conf_by_address (source_p->host, NULL, NULL, NULL, CONF_KILL,
                                          0, source_p->username, NULL);

        if(aconf == NULL)
            return;

        get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason);

        sendto_one_numeric(source_p, RPL_STATSKLINE, form_str(RPL_STATSKLINE),
                           aconf->flags & CONF_FLAGS_TEMPORARY ? 'k' : 'K',
                           host, user, pass, oper_reason ? "|" : "",
                           oper_reason ? oper_reason : "");
    }
    /* Theyre opered, or allowed to see all klines */
    else
        report_Klines (source_p);
}

static void
stats_messages(struct Client *source_p)
{
    report_messages(source_p);
}

static void
stats_dnsbl(struct Client *source_p)
{
    rb_dlink_node *ptr;
    struct Blacklist *blptr;

    RB_DLINK_FOREACH(ptr, blacklist_list.head) {
        blptr = ptr->data;

        /* use RPL_STATSDEBUG for now -- jilles */
        sendto_one_numeric(source_p, RPL_STATSDEBUG, "n :%d %s %s (%d)",
                           blptr->hits,
                           blptr->host,
                           blptr->status & CONF_ILLEGAL ? "disabled" : "active",
                           blptr->refcount);
    }
}

static void
stats_oper(struct Client *source_p)
{
    struct oper_conf *oper_p;
    rb_dlink_node *ptr;

    if(!IsOper(source_p) && ConfigFileEntry.stats_o_oper_only) {
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
        return;
    }

    RB_DLINK_FOREACH(ptr, oper_conf_list.head) {
        oper_p = ptr->data;

        sendto_one_numeric(source_p, RPL_STATSOLINE,
                           form_str(RPL_STATSOLINE),
                           oper_p->username, oper_p->host, oper_p->name,
                           IsOper(source_p) ? oper_p->privset->name : "0", "-1");
    }
}

static void
stats_privset(struct Client *source_p)
{
    privilegeset_report(source_p);
}

/* stats_operedup()
 *
 * input	- client pointer
 * output	- none
 * side effects - client is shown a list of active opers
 */
static void
stats_operedup (struct Client *source_p)
{
    struct Client *target_p;
    rb_dlink_node *oper_ptr;
    unsigned int count = 0;

    RB_DLINK_FOREACH (oper_ptr, oper_list.head) {
        target_p = oper_ptr->data;

        if(IsOperInvis(target_p) && !IsOper(source_p))
            continue;

        if(target_p->user->away)
            continue;

        count++;

        sendto_one_numeric(source_p, RPL_STATSDEBUG,
                           "p :%s (%s@%s)",
                           target_p->name, target_p->username,
                           target_p->host);
    }

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "p :%u staff members", count);

    stats_p_spy (source_p);
}

static void
stats_ports (struct Client *source_p)
{
    if(!IsOper (source_p) && ConfigFileEntry.stats_P_oper_only)
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
    else
        show_ports (source_p);
}

static void
stats_tresv(struct Client *source_p)
{
    struct ConfItem *aconf;
    rb_dlink_node *ptr;
    int i;

    RB_DLINK_FOREACH(ptr, resv_conf_list.head) {
        aconf = ptr->data;
        if(aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSQLINE,
                               form_str(RPL_STATSQLINE),
                               'q', aconf->port, aconf->host, aconf->passwd);
    }

    HASH_WALK(i, R_MAX, ptr, resvTable) {
        aconf = ptr->data;
        if(aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSQLINE,
                               form_str(RPL_STATSQLINE),
                               'q', aconf->port, aconf->host, aconf->passwd);
    }
    HASH_WALK_END
}


static void
stats_resv(struct Client *source_p)
{
    struct ConfItem *aconf;
    rb_dlink_node *ptr;
    int i;

    RB_DLINK_FOREACH(ptr, resv_conf_list.head) {
        aconf = ptr->data;
        if(!aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSQLINE,
                               form_str(RPL_STATSQLINE),
                               'Q', aconf->port, aconf->host, aconf->passwd);
    }

    HASH_WALK(i, R_MAX, ptr, resvTable) {
        aconf = ptr->data;
        if(!aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSQLINE,
                               form_str(RPL_STATSQLINE),
                               'Q', aconf->port, aconf->host, aconf->passwd);
    }
    HASH_WALK_END
}

static void
stats_usage (struct Client *source_p)
{
    struct rusage rus;
    time_t secs;
    time_t rup;
#ifdef  hz
# define hzz hz
#else
# ifdef HZ
#  define hzz HZ
# else
    int hzz = 1;
# endif
#endif

    if(getrusage(RUSAGE_SELF, &rus) == -1) {
        sendto_one_notice(source_p, ":Getruseage error: %s.",
                          strerror(errno));
        return;
    }
    secs = rus.ru_utime.tv_sec + rus.ru_stime.tv_sec;
    if(0 == secs)
        secs = 1;

    rup = (rb_current_time() - startup_time) * hzz;
    if(0 == rup)
        rup = 1;

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :CPU Secs %d:%d User %d:%d System %d:%d",
                       (int) (secs / 60), (int) (secs % 60),
                       (int) (rus.ru_utime.tv_sec / 60),
                       (int) (rus.ru_utime.tv_sec % 60),
                       (int) (rus.ru_stime.tv_sec / 60),
                       (int) (rus.ru_stime.tv_sec % 60));
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :RSS %ld ShMem %ld Data %ld Stack %ld",
                       rus.ru_maxrss, (rus.ru_ixrss / rup),
                       (rus.ru_idrss / rup), (rus.ru_isrss / rup));
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :Swaps %d Reclaims %d Faults %d",
                       (int) rus.ru_nswap, (int) rus.ru_minflt, (int) rus.ru_majflt);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :Block in %d out %d",
                       (int) rus.ru_inblock, (int) rus.ru_oublock);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :Msg Rcv %d Send %d",
                       (int) rus.ru_msgrcv, (int) rus.ru_msgsnd);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "R :Signals %d Context Vol. %d Invol %d",
                       (int) rus.ru_nsignals, (int) rus.ru_nvcsw,
                       (int) rus.ru_nivcsw);
}

static void
stats_tstats (struct Client *source_p)
{
    struct Client *target_p;
    struct ServerStatistics sp;
    rb_dlink_node *ptr;

    memcpy(&sp, &ServerStats, sizeof(struct ServerStatistics));

    RB_DLINK_FOREACH(ptr, serv_list.head) {
        target_p = ptr->data;

        sp.is_sbs += target_p->localClient->sendB;
        sp.is_sbr += target_p->localClient->receiveB;
        sp.is_sti += (unsigned long long)(rb_current_time() - target_p->localClient->firsttime);
        sp.is_sv++;
    }

    RB_DLINK_FOREACH(ptr, lclient_list.head) {
        target_p = ptr->data;

        sp.is_cbs += target_p->localClient->sendB;
        sp.is_cbr += target_p->localClient->receiveB;
        sp.is_cti += (unsigned long long)(rb_current_time() - target_p->localClient->firsttime);
        sp.is_cl++;
    }

    RB_DLINK_FOREACH(ptr, unknown_list.head) {
        sp.is_ni++;
    }

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :accepts %u refused %u", sp.is_ac, sp.is_ref);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :rejected %u delaying %lu",
                       sp.is_rej, delay_exit_length());
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :throttled refused %u throttle list size %lu", sp.is_thr, throttle_size());
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :nicks being delayed %lu",
                       get_nd_count());
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :unknown commands %u prefixes %u",
                       sp.is_unco, sp.is_unpf);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :nick collisions %u saves %u unknown closes %u",
                       sp.is_kill, sp.is_save, sp.is_ni);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :wrong direction %u empty %u",
                       sp.is_wrdi, sp.is_empt);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :numerics seen %u", sp.is_num);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :tgchange blocked msgs %u restricted addrs %lu",
                       sp.is_tgch, rb_dlink_list_length(&tgchange_list));
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :auth successes %u fails %u",
                       sp.is_asuc, sp.is_abad);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :sasl successes %u fails %u",
                       sp.is_ssuc, sp.is_sbad);
    sendto_one_numeric(source_p, RPL_STATSDEBUG, "T :Client Server");
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :connected %u %u", sp.is_cl, sp.is_sv);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :bytes sent %lluK %lluK",
                       sp.is_cbs / 1024,
                       sp.is_sbs / 1024);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :bytes recv %lluK %lluK",
                       sp.is_cbr / 1024,
                       sp.is_sbr / 1024);
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "T :time connected %llu %llu",
                       sp.is_cti, sp.is_sti);
}

static void
stats_uptime (struct Client *source_p)
{
    time_t now;

    now = rb_current_time() - startup_time;
    sendto_one_numeric(source_p, RPL_STATSUPTIME,
                       form_str (RPL_STATSUPTIME),
                       now / 86400, (now / 3600) % 24,
                       (now / 60) % 60, now % 60);
    sendto_one_numeric(source_p, RPL_STATSCONN,
                       form_str (RPL_STATSCONN),
                       MaxConnectionCount, MaxClientCount,
                       Count.totalrestartcount);
}

struct shared_flags {
    int flag;
    char letter;
};
static struct shared_flags shared_flagtable[] = {
    { SHARED_PKLINE,	'K' },
    { SHARED_TKLINE,	'k' },
    { SHARED_UNKLINE,	'U' },
    { SHARED_PXLINE,	'X' },
    { SHARED_TXLINE,	'x' },
    { SHARED_UNXLINE,	'Y' },
    { SHARED_PRESV,		'Q' },
    { SHARED_TRESV,		'q' },
    { SHARED_UNRESV,	'R' },
    { SHARED_LOCOPS,	'L' },
    { SHARED_REHASH,	'H' },
    { SHARED_TDLINE,	'd' },
    { SHARED_PDLINE,	'D' },
    { SHARED_UNDLINE,	'E' },
    { SHARED_DIE,       'I' },
    { SHARED_MODULE,	'M' },
    { 0,			'\0'}
};


static void
stats_shared (struct Client *source_p)
{
    struct remote_conf *shared_p;
    rb_dlink_node *ptr;
    char buf[sizeof(shared_flagtable)/sizeof(shared_flagtable[0])];
    char *p;
    int i;

    RB_DLINK_FOREACH(ptr, shared_conf_list.head) {
        shared_p = ptr->data;

        p = buf;

        *p++ = 'c';

        for(i = 0; shared_flagtable[i].flag != 0; i++) {
            if(shared_p->flags & shared_flagtable[i].flag)
                *p++ = shared_flagtable[i].letter;
        }

        *p = '\0';

        sendto_one_numeric(source_p, RPL_STATSULINE,
                           form_str(RPL_STATSULINE),
                           shared_p->server, shared_p->username,
                           shared_p->host, buf);
    }

    RB_DLINK_FOREACH(ptr, cluster_conf_list.head) {
        shared_p = ptr->data;

        p = buf;

        *p++ = 'C';

        for(i = 0; shared_flagtable[i].flag != 0; i++) {
            if(shared_p->flags & shared_flagtable[i].flag)
                *p++ = shared_flagtable[i].letter;
        }

        *p = '\0';

        sendto_one_numeric(source_p, RPL_STATSULINE,
                           form_str(RPL_STATSULINE),
                           shared_p->server, "*", "*", buf);
    }
}

/* stats_servers()
 *
 * input	- client pointer
 * output	- none
 * side effects - client is shown lists of who connected servers
 */
static void
stats_servers (struct Client *source_p)
{
    struct Client *target_p;
    rb_dlink_node *ptr;
    time_t seconds;
    int days, hours, minutes;
    int j = 0;

    if(ConfigServerHide.flatten_links && !IsOper(source_p) &&
       !IsExemptShide(source_p)) {
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
        return;
    }

    RB_DLINK_FOREACH (ptr, serv_list.head) {
        target_p = ptr->data;

        j++;
        seconds = rb_current_time() - target_p->localClient->firsttime;

        days = (int) (seconds / 86400);
        seconds %= 86400;
        hours = (int) (seconds / 3600);
        seconds %= 3600;
        minutes = (int) (seconds / 60);
        seconds %= 60;

        sendto_one_numeric(source_p, RPL_STATSDEBUG,
                           "V :%s (%s!*@*) Idle: %d SendQ: %d "
                           "Connected: %d day%s, %d:%02d:%02d",
                           target_p->name,
                           (target_p->serv->by[0] ? target_p->serv->by : "Remote."),
                           (int) (rb_current_time() - target_p->localClient->lasttime),
                           (int) rb_linebuf_len (&target_p->localClient->buf_sendq),
                           days, (days == 1) ? "" : "s", hours, minutes,
                           (int) seconds);
    }

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "V :%d Server(s)", j);
}

static void
stats_tgecos(struct Client *source_p)
{
    struct ConfItem *aconf;
    rb_dlink_node *ptr;

    RB_DLINK_FOREACH(ptr, xline_conf_list.head) {
        aconf = ptr->data;

        if(aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSXLINE,
                               form_str(RPL_STATSXLINE),
                               'x', aconf->port, aconf->host,
                               aconf->passwd);
    }
}

static void
stats_gecos(struct Client *source_p)
{
    struct ConfItem *aconf;
    rb_dlink_node *ptr;

    RB_DLINK_FOREACH(ptr, xline_conf_list.head) {
        aconf = ptr->data;

        if(!aconf->hold)
            sendto_one_numeric(source_p, RPL_STATSXLINE,
                               form_str(RPL_STATSXLINE),
                               'X', aconf->port, aconf->host,
                               aconf->passwd);
    }
}

static void
stats_class(struct Client *source_p)
{
    if(ConfigFileEntry.stats_y_oper_only && !IsOper(source_p))
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
    else
        report_classes(source_p);
}

static void
stats_memory (struct Client *source_p)
{
    struct Client *target_p;
    struct Channel *chptr;
    struct Ban *actualBan;
    rb_dlink_node *rb_dlink;
    rb_dlink_node *ptr;
    int channel_count = 0;
    int local_client_conf_count = 0;	/* local client conf links */
    int users_counted = 0;	/* user structs */

    int channel_users = 0;
    int channel_invites = 0;
    int channel_bans = 0;
    int channel_except = 0;
    int channel_invex = 0;
    int channel_quiets = 0;

    int class_count = 0;	/* classes */
    int conf_count = 0;	/* conf lines */
    int users_invited_count = 0;	/* users invited */
    int user_channels = 0;	/* users in channels */
    int aways_counted = 0;
    size_t number_servers_cached;	/* number of servers cached by scache */

    size_t channel_memory = 0;
    size_t channel_ban_memory = 0;
    size_t channel_except_memory = 0;
    size_t channel_invex_memory = 0;
    size_t channel_quiet_memory = 0;

    size_t away_memory = 0;	/* memory used by aways */
    size_t ww = 0;		/* whowas array count */
    size_t wwm = 0;		/* whowas array memory used */
    size_t conf_memory = 0;	/* memory used by conf lines */
    size_t mem_servers_cached;	/* memory used by scache */

    size_t linebuf_count = 0;
    size_t linebuf_memory_used = 0;

    size_t total_channel_memory = 0;
    size_t totww = 0;

    size_t local_client_count = 0;
    size_t local_client_memory_used = 0;

    size_t remote_client_count = 0;
    size_t remote_client_memory_used = 0;

    size_t total_memory = 0;

    count_whowas_memory(&ww, &wwm);

    RB_DLINK_FOREACH(ptr, global_client_list.head) {
        target_p = ptr->data;
        if(MyConnect(target_p)) {
            local_client_conf_count++;
        }

        if(target_p->user) {
            users_counted++;
            users_invited_count += rb_dlink_list_length(&target_p->user->invited);
            user_channels += rb_dlink_list_length(&target_p->user->channel);
            if(target_p->user->away) {
                aways_counted++;
                away_memory += (strlen(target_p->user->away) + 1);
            }
        }
    }

    /* Count up all channels, ban lists, except lists, Invex lists */
    RB_DLINK_FOREACH(ptr, global_channel_list.head) {
        chptr = ptr->data;
        channel_count++;
        channel_memory += (strlen(chptr->chname) + sizeof(struct Channel));

        channel_users += rb_dlink_list_length(&chptr->members);
        channel_invites += rb_dlink_list_length(&chptr->invites);

        RB_DLINK_FOREACH(rb_dlink, chptr->banlist.head) {
            actualBan = rb_dlink->data;
            channel_bans++;

            channel_ban_memory += sizeof(rb_dlink_node) + sizeof(struct Ban);
        }

        RB_DLINK_FOREACH(rb_dlink, chptr->exceptlist.head) {
            actualBan = rb_dlink->data;
            channel_except++;

            channel_except_memory += (sizeof(rb_dlink_node) + sizeof(struct Ban));
        }

        RB_DLINK_FOREACH(rb_dlink, chptr->invexlist.head) {
            actualBan = rb_dlink->data;
            channel_invex++;

            channel_invex_memory += (sizeof(rb_dlink_node) + sizeof(struct Ban));
        }

        RB_DLINK_FOREACH(rb_dlink, chptr->quietlist.head) {
            actualBan = rb_dlink->data;
            channel_quiets++;

            channel_quiet_memory += (sizeof(rb_dlink_node) + sizeof(struct Ban));
        }
    }

    /* count up all classes */

    class_count = rb_dlink_list_length(&class_list) + 1;

    rb_count_rb_linebuf_memory(&linebuf_count, &linebuf_memory_used);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Users %u(%lu) Invites %u(%lu)",
                       users_counted,
                       (unsigned long) users_counted * sizeof(struct User),
                       users_invited_count,
                       (unsigned long) users_invited_count * sizeof(rb_dlink_node));

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :User channels %u(%lu) Aways %u(%d)",
                       user_channels,
                       (unsigned long) user_channels * sizeof(rb_dlink_node),
                       aways_counted, (int) away_memory);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Attached confs %u(%lu)",
                       local_client_conf_count,
                       (unsigned long) local_client_conf_count * sizeof(rb_dlink_node));

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Conflines %u(%d)", conf_count, (int) conf_memory);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Classes %u(%lu)",
                       class_count,
                       (unsigned long) class_count * sizeof(struct Class));

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Channels %u(%d)",
                       channel_count, (int) channel_memory);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Bans %u(%d) Exceptions %u(%d) Invex %u(%d) Quiets %u(%d)",
                       channel_bans, (int) channel_ban_memory,
                       channel_except, (int) channel_except_memory,
                       channel_invex, (int) channel_invex_memory,
                       channel_quiets, (int) channel_quiet_memory);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Channel members %u(%lu) invite %u(%lu)",
                       channel_users,
                       (unsigned long) channel_users * sizeof(rb_dlink_node),
                       channel_invites,
                       (unsigned long) channel_invites * sizeof(rb_dlink_node));

    total_channel_memory = channel_memory +
                           channel_ban_memory +
                           channel_users * sizeof(rb_dlink_node) + channel_invites * sizeof(rb_dlink_node);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Whowas array %ld(%ld)",
                       (long)ww, (long)wwm);

    totww = wwm;

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Hash: client %u(%ld) chan %u(%ld)",
                       U_MAX, (long)(U_MAX * sizeof(rb_dlink_list)),
                       CH_MAX, (long)(CH_MAX * sizeof(rb_dlink_list)));

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :linebuf %ld(%ld)",
                       (long)linebuf_count, (long)linebuf_memory_used);

    count_scache(&number_servers_cached, &mem_servers_cached);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :scache %ld(%ld)",
                       (long)number_servers_cached, (long)mem_servers_cached);

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :hostname hash %d(%ld)",
                       HOST_MAX, (long)HOST_MAX * sizeof(rb_dlink_list));

    total_memory = totww + total_channel_memory + conf_memory +
                   class_count * sizeof(struct Class);

    total_memory += mem_servers_cached;
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Total: whowas %d channel %d conf %d",
                       (int) totww, (int) total_channel_memory,
                       (int) conf_memory);

    count_local_client_memory(&local_client_count, &local_client_memory_used);
    total_memory += local_client_memory_used;

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Local client Memory in use: %ld(%ld)",
                       (long)local_client_count, (long)local_client_memory_used);


    count_remote_client_memory(&remote_client_count, &remote_client_memory_used);
    total_memory += remote_client_memory_used;

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "z :Remote client Memory in use: %ld(%ld)",
                       (long)remote_client_count,
                       (long)remote_client_memory_used);
}

static void
stats_ziplinks (struct Client *source_p)
{
    rb_dlink_node *ptr;
    struct Client *target_p;
    struct ZipStats *zipstats;
    int sent_data = 0;
    char buf[128], buf1[128];
    RB_DLINK_FOREACH (ptr, serv_list.head) {
        target_p = ptr->data;
        if(IsCapable (target_p, CAP_ZIP)) {
            zipstats = target_p->localClient->zipstats;
            sprintf(buf, "%.2f%%", zipstats->out_ratio);
            sprintf(buf1, "%.2f%%", zipstats->in_ratio);
            sendto_one_numeric(source_p, RPL_STATSDEBUG,
                               "Z :ZipLinks stats for %s send[%s compression "
                               "(%llu kB data/%llu kB wire)] recv[%s compression "
                               "(%llu kB data/%llu kB wire)]",
                               target_p->name,
                               buf, zipstats->out >> 10,
                               zipstats->out_wire >> 10, buf1,
                               zipstats->in >> 10, zipstats->in_wire >> 10);
            sent_data++;
        }
    }

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "Z :%u ziplink(s)", sent_data);
}

static void
stats_servlinks (struct Client *source_p)
{
    static char Sformat[] = ":%s %d %s %s %u %u %u %u %u :%u %u %s";
    long uptime, sendK, receiveK;
    struct Client *target_p;
    rb_dlink_node *ptr;
    int j = 0;
    char buf[128];

    if(ConfigServerHide.flatten_links && !IsOper (source_p) &&
       !IsExemptShide(source_p)) {
        sendto_one_numeric(source_p, ERR_NOPRIVILEGES,
                           form_str (ERR_NOPRIVILEGES));
        return;
    }

    sendK = receiveK = 0;

    RB_DLINK_FOREACH (ptr, serv_list.head) {
        target_p = ptr->data;

        j++;
        sendK += target_p->localClient->sendK;
        receiveK += target_p->localClient->receiveK;

        sendto_one(source_p, Sformat,
                   get_id(&me, source_p), RPL_STATSLINKINFO, get_id(source_p, source_p),
                   target_p->name,
                   (int) rb_linebuf_len (&target_p->localClient->buf_sendq),
                   (int) target_p->localClient->sendM,
                   (int) target_p->localClient->sendK,
                   (int) target_p->localClient->receiveM,
                   (int) target_p->localClient->receiveK,
                   rb_current_time() - target_p->localClient->firsttime,
                   (rb_current_time() > target_p->localClient->lasttime) ?
                   (rb_current_time() - target_p->localClient->lasttime) : 0,
                   IsOper (source_p) ? show_capabilities (target_p) : "TS");
    }

    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "? :%u total server(s)", j);

    snprintf(buf, sizeof buf, "%7.2f", _GMKv ((sendK)));
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "? :Sent total : %s %s",
                       buf, _GMKs (sendK));
    snprintf(buf, sizeof buf, "%7.2f", _GMKv ((receiveK)));
    sendto_one_numeric(source_p, RPL_STATSDEBUG,
                       "? :Recv total : %s %s",
                       buf, _GMKs (receiveK));

    uptime = (rb_current_time() - startup_time);
    snprintf(buf, sizeof buf, "%7.2f %s (%4.1f K/s)",
             _GMKv (me.localClient->sendK),
             _GMKs (me.localClient->sendK),
             (float) ((float) me.localClient->sendK / (float) uptime));
    sendto_one_numeric(source_p, RPL_STATSDEBUG, "? :Server send: %s", buf);
    snprintf(buf, sizeof buf, "%7.2f %s (%4.1f K/s)",
             _GMKv (me.localClient->receiveK),
             _GMKs (me.localClient->receiveK),
             (float) ((float) me.localClient->receiveK / (float) uptime));
    sendto_one_numeric(source_p, RPL_STATSDEBUG, "? :Server recv: %s", buf);
}

static void
stats_ltrace(struct Client *source_p, int parc, const char *parv[])
{
    int doall = 0;
    int wilds = 0;
    const char *name;
    char statchar = parv[1][0];

    /* this is def targeted at us somehow.. */
    if(parc > 2 && !EmptyString(parv[2])) {
        /* directed at us generically? */
        if(match(parv[2], me.name) ||
           (!MyClient(source_p) && !irccmp(parv[2], me.id))) {
            name = me.name;
            doall = 1;
        } else {
            name = parv[2];
            wilds = strchr(name, '*') || strchr(name, '?');
        }

        /* must be directed at a specific person thats not us */
        if(!doall && !wilds) {
            struct Client *target_p;

            if(MyClient(source_p))
                target_p = find_named_person(name);
            else
                target_p = find_person(name);

            if(target_p != NULL) {
                stats_spy(source_p, statchar, target_p->name);
                stats_l_client(source_p, target_p, statchar);
            } else
                sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
                                   form_str(ERR_NOSUCHSERVER),
                                   name);

            return;
        }
    } else {
        name = me.name;
        doall = 1;
    }

    stats_spy(source_p, statchar, name);

    if(doall) {
        /* local opers get everyone */
        if(MyOper(source_p)) {
            stats_l_list(source_p, name, doall, wilds, &unknown_list, statchar);
            stats_l_list(source_p, name, doall, wilds, &lclient_list, statchar);
        } else {
            /* they still need themselves if theyre local.. */
            if(MyClient(source_p))
                stats_l_client(source_p, source_p, statchar);

            stats_l_list(source_p, name, doall, wilds, &local_oper_list, statchar);
        }

        if (!ConfigServerHide.flatten_links || IsOper(source_p) ||
            IsExemptShide(source_p))
            stats_l_list(source_p, name, doall, wilds, &serv_list, statchar);

        return;
    }

    /* ok, at this point theyre looking for a specific client whos on
     * our server.. but it contains a wildcard.  --fl
     */
    stats_l_list(source_p, name, doall, wilds, &lclient_list, statchar);

    return;
}


static void
stats_l_list(struct Client *source_p, const char *name, int doall, int wilds,
             rb_dlink_list * list, char statchar)
{
    rb_dlink_node *ptr;
    struct Client *target_p;

    /* send information about connections which match.  note, we
     * dont need tests for IsInvisible(), because non-opers will
     * never get here for normal clients --fl
     */
    RB_DLINK_FOREACH(ptr, list->head) {
        target_p = ptr->data;

        if(!doall && wilds && !match(name, target_p->name))
            continue;

        stats_l_client(source_p, target_p, statchar);
    }
}

void
stats_l_client(struct Client *source_p, struct Client *target_p,
               char statchar)
{
    if(IsAnyServer(target_p)) {
        sendto_one_numeric(source_p, RPL_STATSLINKINFO, Lformat,
                           target_p->name,
                           (int) rb_linebuf_len(&target_p->localClient->buf_sendq),
                           (int) target_p->localClient->sendM,
                           (int) target_p->localClient->sendK,
                           (int) target_p->localClient->receiveM,
                           (int) target_p->localClient->receiveK,
                           rb_current_time() - target_p->localClient->firsttime,
                           (rb_current_time() > target_p->localClient->lasttime) ?
                           (rb_current_time() - target_p->localClient->lasttime) : 0,
                           IsOper(source_p) ? show_capabilities(target_p) : "-");
    }

    else {
        sendto_one_numeric(source_p, RPL_STATSLINKINFO, Lformat,
                           show_ip(source_p, target_p) ?
                           (IsUpper(statchar) ?
                            get_client_name(target_p, SHOW_IP) :
                            get_client_name(target_p, HIDE_IP)) :
                               get_client_name(target_p, MASK_IP),
                               (int) rb_linebuf_len(&target_p->localClient->buf_sendq),
                               (int) target_p->localClient->sendM,
                               (int) target_p->localClient->sendK,
                               (int) target_p->localClient->receiveM,
                               (int) target_p->localClient->receiveK,
                               rb_current_time() - target_p->localClient->firsttime,
                               (rb_current_time() > target_p->localClient->lasttime) ?
                               (rb_current_time() - target_p->localClient->lasttime) : 0,
                               "-");
    }
}

static void
rb_dump_fd_callback(int fd, const char *desc, void *data)
{
    struct Client *source_p = data;
    sendto_one_numeric(source_p, RPL_STATSDEBUG, "F :fd %-3d desc '%s'", fd, desc);
}

static void
stats_comm(struct Client *source_p)
{
    rb_dump_fd(rb_dump_fd_callback, source_p);
}

/*
 * stats_spy
 *
 * inputs	- pointer to client doing the /stats
 *		- char letter they are doing /stats on
 * output	- none
 * side effects -
 * This little helper function reports to opers if configured.
 * personally, I don't see why opers need to see stats requests
 * at all. They are just "noise" to an oper, and users can't do
 * any damage with stats requests now anyway. So, why show them?
 * -Dianora
 */
static void
stats_spy(struct Client *source_p, char statchar, const char *name)
{
    hook_data_int data;

    data.client = source_p;
    data.arg1 = name;
    data.arg2 = (int) statchar;

    call_hook(doing_stats_hook, &data);
}

/* stats_p_spy()
 *
 * input	- pointer to client doing stats
 * ouput	-
 * side effects - call hook doing_stats_p
 */
static void
stats_p_spy (struct Client *source_p)
{
    hook_data data;

    data.client = source_p;
    data.arg1 = data.arg2 = NULL;

    call_hook(doing_stats_p_hook, &data);
}