[solanum.git] / modules / m_etrace.c

/*
 *  ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
 *  m_etrace.c: Gives local opers a trace output with added info.
 *
 *  Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
 *  Copyright (C) 2002-2005 ircd-ratbox development team
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are
 *  met:
 *
 *  1.Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  2.Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *  3.The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 *  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 *  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 *  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */

#include "stdinc.h"
#include "class.h"
#include "hook.h"
#include "client.h"
#include "hash.h"
#include "common.h"
#include "hash.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "s_conf.h"
#include "s_newconf.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "logger.h"
#include "supported.h"

static int mo_etrace(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static int me_etrace(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static int m_chantrace(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static int mo_masktrace(struct MsgBuf *, struct Client *, struct Client *, int, const char **);

struct Message etrace_msgtab = {
	"ETRACE", 0, 0, 0, 0,
	{mg_ignore, mg_not_oper, mg_ignore, mg_ignore, {me_etrace, 0}, {mo_etrace, 0}}
};
struct Message chantrace_msgtab = {
	"CHANTRACE", 0, 0, 0, 0,
	{mg_ignore, {m_chantrace, 2}, mg_ignore, mg_ignore, mg_ignore, {m_chantrace, 2}}
};
struct Message masktrace_msgtab = {
	"MASKTRACE", 0, 0, 0, 0,
	{mg_ignore, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_masktrace, 2}}
};

static int
_modinit(void)
{
    add_isupport("ETRACE", isupport_string, "");

    return 0;
}

static void
_moddeinit(void)
{
    delete_isupport("ETRACE");
}

mapi_clist_av1 etrace_clist[] = { &etrace_msgtab, &chantrace_msgtab, &masktrace_msgtab, NULL };

static const char etrace_desc[] =
    "Provides enhanced tracing facilities to opers (ETRACE, CHANTRACE, and MASKTRACE)";

DECLARE_MODULE_AV2(etrace, _modinit, _moddeinit, etrace_clist, NULL, NULL, NULL, NULL, etrace_desc);

static void do_etrace(struct Client *source_p, int ipv4, int ipv6);
static void do_etrace_full(struct Client *source_p);
static void do_single_etrace(struct Client *source_p, struct Client *target_p);

static const char *empty_sockhost = "255.255.255.255";
static const char *spoofed_sockhost = "0";

/*
 * m_etrace
 *      parv[1] = options [or target]
 *	parv[2] = [target]
 */
static int
mo_etrace(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	if(parc > 1 && !EmptyString(parv[1]))
	{
		if(!irccmp(parv[1], "-full"))
			do_etrace_full(source_p);
#ifdef RB_IPV6
		else if(!irccmp(parv[1], "-v6"))
			do_etrace(source_p, 0, 1);
		else if(!irccmp(parv[1], "-v4"))
			do_etrace(source_p, 1, 0);
#endif
		else
		{
			struct Client *target_p = find_named_person(parv[1]);

			if(target_p)
			{
				if(!MyClient(target_p))
					sendto_one(target_p, ":%s ENCAP %s ETRACE %s",
						get_id(source_p, target_p),
						target_p->servptr->name,
						get_id(target_p, target_p));
				else
					do_single_etrace(source_p, target_p);
			}
			else
				sendto_one_numeric(source_p, ERR_NOSUCHNICK,
						form_str(ERR_NOSUCHNICK), parv[1]);
		}
	}
	else
		do_etrace(source_p, 1, 1);

	return 0;
}

static int
me_etrace(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;

	if(!IsOper(source_p) || parc < 2 || EmptyString(parv[1]))
		return 0;

	/* we cant etrace remote clients.. we shouldnt even get sent them */
	if((target_p = find_person(parv[1])) && MyClient(target_p))
		do_single_etrace(source_p, target_p);

        sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE),
				target_p ? target_p->name : parv[1]);

	return 0;
}

static void
do_etrace(struct Client *source_p, int ipv4, int ipv6)
{
	struct Client *target_p;
	rb_dlink_node *ptr;

	/* report all direct connections */
	RB_DLINK_FOREACH(ptr, lclient_list.head)
	{
		target_p = ptr->data;

#ifdef RB_IPV6
		if((!ipv4 && target_p->localClient->ip.ss_family == AF_INET) ||
		   (!ipv6 && target_p->localClient->ip.ss_family == AF_INET6))
			continue;
#endif

		sendto_one(source_p, form_str(RPL_ETRACE),
			   me.name, source_p->name,
			   IsOper(target_p) ? "Oper" : "User",
			   get_client_class(target_p),
			   target_p->name, target_p->username, target_p->host,
			   show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255",
			   target_p->info);
	}

	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
}

static void
do_etrace_full(struct Client *source_p)
{
	rb_dlink_node *ptr;

	RB_DLINK_FOREACH(ptr, lclient_list.head)
	{
		do_single_etrace(source_p, ptr->data);
	}

	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
}

/*
 * do_single_etrace  - searches local clients and displays those matching
 *                     a pattern
 * input             - source client, target client
 * output	     - etrace results
 * side effects	     - etrace results are displayed
 */
static void
do_single_etrace(struct Client *source_p, struct Client *target_p)
{
	/* note, we hide fullcaps for spoofed users, as mirc can often
	 * advertise its internal ip address in the field --fl
	 */
	if(!show_ip(source_p, target_p))
		sendto_one(source_p, form_str(RPL_ETRACEFULL),
				me.name, source_p->name,
				IsOper(target_p) ? "Oper" : "User",
				get_client_class(target_p),
				target_p->name, target_p->username, target_p->host,
				"255.255.255.255", "<hidden> <hidden>", target_p->info);
	else
		sendto_one(source_p, form_str(RPL_ETRACEFULL),
				me.name, source_p->name,
				IsOper(target_p) ? "Oper" : "User",
				get_client_class(target_p),
				target_p->name, target_p->username,
				target_p->host, target_p->sockhost,
				target_p->localClient->fullcaps, target_p->info);
}

static int
m_chantrace(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;
	struct Channel *chptr;
	struct membership *msptr;
	const char *sockhost;
	const char *name;
	rb_dlink_node *ptr;
	int operspy = 0;

	name = parv[1];

	if(IsOperSpy(source_p) && parv[1][0] == '!')
	{
		name++;
		operspy = 1;

		if(EmptyString(name))
		{
			sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
					me.name, source_p->name, "CHANTRACE");
			return 0;
		}
	}

	if((chptr = find_channel(name)) == NULL)
	{
		sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL),
				name);
		return 0;
	}

	/* dont report operspys for nonexistant channels. */
	if(operspy)
		report_operspy(source_p, "CHANTRACE", chptr->chname);

	if(!operspy && !IsMember(client_p, chptr))
	{
		sendto_one_numeric(source_p, ERR_NOTONCHANNEL, form_str(ERR_NOTONCHANNEL),
				chptr->chname);
		return 0;
	}

	RB_DLINK_FOREACH(ptr, chptr->members.head)
	{
		msptr = ptr->data;
		target_p = msptr->client_p;

		if(EmptyString(target_p->sockhost))
			sockhost = empty_sockhost;
		else if(!show_ip(source_p, target_p))
			sockhost = spoofed_sockhost;
		else
			sockhost = target_p->sockhost;

		sendto_one(source_p, form_str(RPL_ETRACE),
				me.name, source_p->name,
				IsOper(target_p) ? "Oper" : "User",
				/* class field -- pretend its server.. */
				target_p->servptr->name,
				target_p->name, target_p->username, target_p->host,
				sockhost, target_p->info);
	}

	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
	return 0;
}

static void
match_masktrace(struct Client *source_p, rb_dlink_list *list,
	const char *username, const char *hostname, const char *name,
	const char *gecos)
{
	struct Client *target_p;
	rb_dlink_node *ptr;
	const char *sockhost;

	RB_DLINK_FOREACH(ptr, list->head)
	{
		target_p = ptr->data;
		if(!IsPerson(target_p))
			continue;

		if(EmptyString(target_p->sockhost))
			sockhost = empty_sockhost;
		else if(!show_ip(source_p, target_p))
			sockhost = spoofed_sockhost;
		else
			sockhost = target_p->sockhost;

		if(match(username, target_p->username) &&
		   (match(hostname, target_p->host) ||
		    match(hostname, target_p->orighost) ||
		    match(hostname, sockhost) || match_ips(hostname, sockhost)))
		{
			if(name != NULL && !match(name, target_p->name))
				continue;

			if(gecos != NULL && !match_esc(gecos, target_p->info))
				continue;

			sendto_one(source_p, form_str(RPL_ETRACE),
				me.name, source_p->name,
				IsOper(target_p) ? "Oper" : "User",
				/* class field -- pretend its server.. */
				target_p->servptr->name,
				target_p->name, target_p->username, target_p->host,
				sockhost, target_p->info);
		}
	}
}

static int
mo_masktrace(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc,
	const char *parv[])
{
	char *name, *username, *hostname, *gecos;
	const char *mask;
	int operspy = 0;

	mask = parv[1];
	name = LOCAL_COPY(parv[1]);
	collapse(name);

	if(IsOperSpy(source_p) && parv[1][0] == '!')
	{
		name++;
		mask++;
		operspy = 1;
	}

	if(parc > 2 && !EmptyString(parv[2]))
	{
		gecos = LOCAL_COPY(parv[2]);
		collapse_esc(gecos);
	} else
		gecos = NULL;


	if((hostname = strchr(name, '@')) == NULL)
	{
		sendto_one_notice(source_p, ":Invalid parameters");
		return 0;
	}

	*hostname++ = '\0';

	if((username = strchr(name, '!')) == NULL)
	{
		username = name;
		name = NULL;
	} else
		*username++ = '\0';

	if(EmptyString(username) || EmptyString(hostname))
	{
		sendto_one_notice(source_p, ":Invalid parameters");
		return 0;
	}

	if(operspy) {
		if (!ConfigFileEntry.operspy_dont_care_user_info)
		{
			char buf[512];
			rb_strlcpy(buf, mask, sizeof(buf));
			if(!EmptyString(gecos)) {
				rb_strlcat(buf, " ", sizeof(buf));
				rb_strlcat(buf, gecos, sizeof(buf));
			}

			report_operspy(source_p, "MASKTRACE", buf);
		}
		match_masktrace(source_p, &global_client_list, username, hostname, name, gecos);
	} else
		match_masktrace(source_p, &lclient_list, username, hostname, name, gecos);

	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
	return 0;
}
Commit	Line	Data
212380e3 AC	1	/*
	2	* ircd-ratbox: an advanced Internet Relay Chat Daemon(ircd).
	3	* m_etrace.c: Gives local opers a trace output with added info.
	4	*
	5	* Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
	6	* Copyright (C) 2002-2005 ircd-ratbox development team
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions are
	10	* met:
	11	*
	12	* 1.Redistributions of source code must retain the above copyright notice,
	13	* this list of conditions and the following disclaimer.
	14	* 2.Redistributions in binary form must reproduce the above copyright
	15	* notice, this list of conditions and the following disclaimer in the
	16	* documentation and/or other materials provided with the distribution.
	17	* 3.The name of the author may not be used to endorse or promote products
	18	* derived from this software without specific prior written permission.
	19	*
	20	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	21	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	22	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	23	* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
	24	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	25	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	26	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	27	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	28	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	29	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	30	* POSSIBILITY OF SUCH DAMAGE.
212380e3 AC	31	*/
	32
	33	#include "stdinc.h"
	34	#include "class.h"
	35	#include "hook.h"
	36	#include "client.h"
	37	#include "hash.h"
	38	#include "common.h"
	39	#include "hash.h"
4562c604	40	#include "match.h"
212380e3 AC	41	#include "ircd.h"
212380e3 AC	42	#include "numeric.h"
212380e3 AC	43	#include "s_serv.h"
	44	#include "s_conf.h"
	45	#include "s_newconf.h"
	46	#include "send.h"
	47	#include "msg.h"
	48	#include "parse.h"
	49	#include "modules.h"
77d3d2db	50	#include "logger.h"
0b904d91	51	#include "supported.h"
212380e3	52
428ca87b AC	53	static int mo_etrace(struct MsgBuf , struct Client , struct Client , int, const char *);
	54	static int me_etrace(struct MsgBuf , struct Client , struct Client , int, const char *);
	55	static int m_chantrace(struct MsgBuf , struct Client , struct Client , int, const char *);
	56	static int mo_masktrace(struct MsgBuf , struct Client , struct Client , int, const char *);
212380e3 AC	57
212380e3 AC	58	struct Message etrace_msgtab = {
7baa37a9	59	"ETRACE", 0, 0, 0, 0,
212380e3 AC	60	{mg_ignore, mg_not_oper, mg_ignore, mg_ignore, {me_etrace, 0}, {mo_etrace, 0}}
	61	};
	62	struct Message chantrace_msgtab = {
7baa37a9	63	"CHANTRACE", 0, 0, 0, 0,
5807e0be	64	{mg_ignore, {m_chantrace, 2}, mg_ignore, mg_ignore, mg_ignore, {m_chantrace, 2}}
212380e3 AC	65	};
212380e3 AC	66	struct Message masktrace_msgtab = {
7baa37a9	67	"MASKTRACE", 0, 0, 0, 0,
212380e3 AC	68	{mg_ignore, mg_not_oper, mg_ignore, mg_ignore, mg_ignore, {mo_masktrace, 2}}
	69	};
	70
0b904d91 AC	71	static int
	72	_modinit(void)
	73	{
	74	add_isupport("ETRACE", isupport_string, "");
	75
	76	return 0;
	77	}
	78
	79	static void
	80	_moddeinit(void)
	81	{
	82	delete_isupport("ETRACE");
	83	}
	84
212380e3	85	mapi_clist_av1 etrace_clist[] = { &etrace_msgtab, &chantrace_msgtab, &masktrace_msgtab, NULL };
9fd8e7cb EM	86
	87	static const char etrace_desc[] =
	88	"Provides enhanced tracing facilities to opers (ETRACE, CHANTRACE, and MASKTRACE)";
	89
	90	DECLARE_MODULE_AV2(etrace, _modinit, _moddeinit, etrace_clist, NULL, NULL, NULL, NULL, etrace_desc);
212380e3 AC	91
	92	static void do_etrace(struct Client *source_p, int ipv4, int ipv6);
	93	static void do_etrace_full(struct Client *source_p);
	94	static void do_single_etrace(struct Client source_p, struct Client target_p);
	95
	96	static const char *empty_sockhost = "255.255.255.255";
	97	static const char *spoofed_sockhost = "0";
	98
	99	/*
	100	* m_etrace
212380e3 AC	101	* parv[1] = options [or target]
	102	* parv[2] = [target]
	103	*/
	104	static int
428ca87b	105	mo_etrace(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	106	{
	107	if(parc > 1 && !EmptyString(parv[1]))
	108	{
	109	if(!irccmp(parv[1], "-full"))
	110	do_etrace_full(source_p);
ccda6e3f	111	#ifdef RB_IPV6
212380e3 AC	112	else if(!irccmp(parv[1], "-v6"))
	113	do_etrace(source_p, 0, 1);
	114	else if(!irccmp(parv[1], "-v4"))
	115	do_etrace(source_p, 1, 0);
	116	#endif
	117	else
	118	{
	119	struct Client *target_p = find_named_person(parv[1]);
	120
	121	if(target_p)
	122	{
	123	if(!MyClient(target_p))
	124	sendto_one(target_p, ":%s ENCAP %s ETRACE %s",
	125	get_id(source_p, target_p),
c88cdb00	126	target_p->servptr->name,
212380e3 AC	127	get_id(target_p, target_p));
	128	else
	129	do_single_etrace(source_p, target_p);
	130	}
	131	else
	132	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
	133	form_str(ERR_NOSUCHNICK), parv[1]);
	134	}
	135	}
	136	else
	137	do_etrace(source_p, 1, 1);
	138
	139	return 0;
	140	}
	141
	142	static int
428ca87b	143	me_etrace(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	144	{
	145	struct Client *target_p;
	146
	147	if(!IsOper(source_p) \|\| parc < 2 \|\| EmptyString(parv[1]))
	148	return 0;
	149
	150	/* we cant etrace remote clients.. we shouldnt even get sent them */
	151	if((target_p = find_person(parv[1])) && MyClient(target_p))
	152	do_single_etrace(source_p, target_p);
	153
55abcbb2	154	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE),
212380e3 AC	155	target_p ? target_p->name : parv[1]);
	156
	157	return 0;
	158	}
	159
	160	static void
	161	do_etrace(struct Client *source_p, int ipv4, int ipv6)
	162	{
	163	struct Client *target_p;
5b96d9a6	164	rb_dlink_node *ptr;
212380e3 AC	165
212380e3 AC	166	/* report all direct connections */
5b96d9a6	167	RB_DLINK_FOREACH(ptr, lclient_list.head)
212380e3 AC	168	{
	169	target_p = ptr->data;
	170
ccda6e3f	171	#ifdef RB_IPV6
212380e3 AC	172	if((!ipv4 && target_p->localClient->ip.ss_family == AF_INET) \|\|
	173	(!ipv6 && target_p->localClient->ip.ss_family == AF_INET6))
	174	continue;
	175	#endif
	176
	177	sendto_one(source_p, form_str(RPL_ETRACE),
55abcbb2 KB	178	me.name, source_p->name,
55abcbb2 KB	179	IsOper(target_p) ? "Oper" : "User",
212380e3 AC	180	get_client_class(target_p),
	181	target_p->name, target_p->username, target_p->host,
	182	show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255",
	183	target_p->info);
	184	}
	185
	186	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
	187	}
	188
	189	static void
	190	do_etrace_full(struct Client *source_p)
	191	{
5b96d9a6	192	rb_dlink_node *ptr;
212380e3	193
5b96d9a6	194	RB_DLINK_FOREACH(ptr, lclient_list.head)
212380e3 AC	195	{
	196	do_single_etrace(source_p, ptr->data);
	197	}
	198
	199	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
	200	}
	201
	202	/*
	203	* do_single_etrace - searches local clients and displays those matching
	204	* a pattern
	205	* input - source client, target client
	206	* output - etrace results
	207	* side effects - etrace results are displayed
	208	*/
	209	static void
	210	do_single_etrace(struct Client source_p, struct Client target_p)
	211	{
	212	/* note, we hide fullcaps for spoofed users, as mirc can often
	213	* advertise its internal ip address in the field --fl
	214	*/
	215	if(!show_ip(source_p, target_p))
	216	sendto_one(source_p, form_str(RPL_ETRACEFULL),
55abcbb2	217	me.name, source_p->name,
212380e3 AC	218	IsOper(target_p) ? "Oper" : "User",
212380e3 AC	219	get_client_class(target_p),
55abcbb2	220	target_p->name, target_p->username, target_p->host,
212380e3 AC	221	"255.255.255.255", "<hidden> <hidden>", target_p->info);
	222	else
	223	sendto_one(source_p, form_str(RPL_ETRACEFULL),
55abcbb2	224	me.name, source_p->name,
212380e3 AC	225	IsOper(target_p) ? "Oper" : "User",
212380e3 AC	226	get_client_class(target_p),
55abcbb2	227	target_p->name, target_p->username,
212380e3 AC	228	target_p->host, target_p->sockhost,
	229	target_p->localClient->fullcaps, target_p->info);
	230	}
	231
	232	static int
428ca87b	233	m_chantrace(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	234	{
	235	struct Client *target_p;
	236	struct Channel *chptr;
	237	struct membership *msptr;
	238	const char *sockhost;
	239	const char *name;
5b96d9a6	240	rb_dlink_node *ptr;
212380e3 AC	241	int operspy = 0;
	242
	243	name = parv[1];
	244
	245	if(IsOperSpy(source_p) && parv[1][0] == '!')
	246	{
	247	name++;
	248	operspy = 1;
	249
	250	if(EmptyString(name))
	251	{
	252	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
	253	me.name, source_p->name, "CHANTRACE");
	254	return 0;
	255	}
	256	}
	257
	258	if((chptr = find_channel(name)) == NULL)
	259	{
	260	sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL),
	261	name);
	262	return 0;
	263	}
	264
	265	/* dont report operspys for nonexistant channels. */
	266	if(operspy)
	267	report_operspy(source_p, "CHANTRACE", chptr->chname);
	268
	269	if(!operspy && !IsMember(client_p, chptr))
	270	{
	271	sendto_one_numeric(source_p, ERR_NOTONCHANNEL, form_str(ERR_NOTONCHANNEL),
	272	chptr->chname);
	273	return 0;
	274	}
	275
5b96d9a6	276	RB_DLINK_FOREACH(ptr, chptr->members.head)
212380e3 AC	277	{
	278	msptr = ptr->data;
	279	target_p = msptr->client_p;
	280
	281	if(EmptyString(target_p->sockhost))
	282	sockhost = empty_sockhost;
	283	else if(!show_ip(source_p, target_p))
	284	sockhost = spoofed_sockhost;
	285	else
	286	sockhost = target_p->sockhost;
	287
	288	sendto_one(source_p, form_str(RPL_ETRACE),
55abcbb2	289	me.name, source_p->name,
212380e3 AC	290	IsOper(target_p) ? "Oper" : "User",
	291	/* class field -- pretend its server.. */
	292	target_p->servptr->name,
	293	target_p->name, target_p->username, target_p->host,
	294	sockhost, target_p->info);
	295	}
	296
	297	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
	298	return 0;
	299	}
	300
	301	static void
5b96d9a6	302	match_masktrace(struct Client source_p, rb_dlink_list list,
212380e3 AC	303	const char username, const char hostname, const char *name,
	304	const char *gecos)
	305	{
	306	struct Client *target_p;
5b96d9a6	307	rb_dlink_node *ptr;
55abcbb2 KB	308	const char *sockhost;
55abcbb2 KB	309
5b96d9a6	310	RB_DLINK_FOREACH(ptr, list->head)
212380e3 AC	311	{
	312	target_p = ptr->data;
	313	if(!IsPerson(target_p))
	314	continue;
55abcbb2	315
212380e3 AC	316	if(EmptyString(target_p->sockhost))
	317	sockhost = empty_sockhost;
	318	else if(!show_ip(source_p, target_p))
	319	sockhost = spoofed_sockhost;
	320	else
	321	sockhost = target_p->sockhost;
	322
	323	if(match(username, target_p->username) &&
	324	(match(hostname, target_p->host) \|\|
	325	match(hostname, target_p->orighost) \|\|
	326	match(hostname, sockhost) \|\| match_ips(hostname, sockhost)))
	327	{
	328	if(name != NULL && !match(name, target_p->name))
	329	continue;
	330
39b23540	331	if(gecos != NULL && !match_esc(gecos, target_p->info))
212380e3	332	continue;
55abcbb2	333
212380e3	334	sendto_one(source_p, form_str(RPL_ETRACE),
55abcbb2	335	me.name, source_p->name,
212380e3 AC	336	IsOper(target_p) ? "Oper" : "User",
	337	/* class field -- pretend its server.. */
	338	target_p->servptr->name,
	339	target_p->name, target_p->username, target_p->host,
	340	sockhost, target_p->info);
	341	}
	342	}
	343	}
	344
	345	static int
428ca87b	346	mo_masktrace(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p, int parc,
212380e3 AC	347	const char *parv[])
	348	{
	349	char name, username, hostname, gecos;
	350	const char *mask;
	351	int operspy = 0;
	352
55abcbb2 KB	353	mask = parv[1];
55abcbb2 KB	354	name = LOCAL_COPY(parv[1]);
212380e3 AC	355	collapse(name);
	356
	357	if(IsOperSpy(source_p) && parv[1][0] == '!')
	358	{
	359	name++;
	360	mask++;
	361	operspy = 1;
55abcbb2 KB	362	}
55abcbb2 KB	363
212380e3 AC	364	if(parc > 2 && !EmptyString(parv[2]))
	365	{
	366	gecos = LOCAL_COPY(parv[2]);
	367	collapse_esc(gecos);
	368	} else
	369	gecos = NULL;
55abcbb2	370
212380e3 AC	371
	372	if((hostname = strchr(name, '@')) == NULL)
	373	{
5366977b	374	sendto_one_notice(source_p, ":Invalid parameters");
212380e3 AC	375	return 0;
	376	}
	377
	378	*hostname++ = '\0';
55abcbb2	379
212380e3 AC	380	if((username = strchr(name, '!')) == NULL)
	381	{
	382	username = name;
	383	name = NULL;
	384	} else
	385	*username++ = '\0';
	386
	387	if(EmptyString(username) \|\| EmptyString(hostname))
	388	{
5366977b	389	sendto_one_notice(source_p, ":Invalid parameters");
212380e3 AC	390	return 0;
212380e3 AC	391	}
55abcbb2	392
212380e3 AC	393	if(operspy) {
	394	if (!ConfigFileEntry.operspy_dont_care_user_info)
	395	{
	396	char buf[512];
f427c8b0	397	rb_strlcpy(buf, mask, sizeof(buf));
212380e3	398	if(!EmptyString(gecos)) {
1f9de103 VY	399	rb_strlcat(buf, " ", sizeof(buf));
1f9de103 VY	400	rb_strlcat(buf, gecos, sizeof(buf));
55abcbb2	401	}
212380e3	402
55abcbb2	403	report_operspy(source_p, "MASKTRACE", buf);
212380e3	404	}
55abcbb2	405	match_masktrace(source_p, &global_client_list, username, hostname, name, gecos);
212380e3 AC	406	} else
	407	match_masktrace(source_p, &lclient_list, username, hostname, name, gecos);
	408
55abcbb2	409	sendto_one_numeric(source_p, RPL_ENDOFTRACE, form_str(RPL_ENDOFTRACE), me.name);
212380e3 AC	410	return 0;
212380e3 AC	411	}