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Commit	Line	Data
	1	/*
	2	* ircd-ratbox: A slightly useful ircd.
	3	* m_capab.c: Negotiates capabilities with a remote server.
	4	*
	5	* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
	6	* Copyright (C) 1996-2002 Hybrid Development Team
	7	* Copyright (C) 2002-2005 ircd-ratbox development team
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	22	* USA
	23	*
	24	* $Id: m_capab.c 1295 2006-05-08 13:05:25Z nenolod $
	25	*/
	26
	27	#include "stdinc.h"
	28	#include "client.h"
	29	#include "match.h"
	30	#include "s_serv.h"
	31	#include "s_conf.h"
	32	#include "msg.h"
	33	#include "parse.h"
	34	#include "modules.h"
	35
	36	static int mr_capab(struct MsgBuf , struct Client , struct Client , int, const char *);
	37	static int me_gcap(struct MsgBuf , struct Client , struct Client , int, const char *);
	38
	39	struct Message capab_msgtab = {
	40	"CAPAB", 0, 0, 0, 0,
	41	{{mr_capab, 2}, mg_ignore, mg_ignore, mg_ignore, mg_ignore, mg_ignore}
	42	};
	43	struct Message gcap_msgtab = {
	44	"GCAP", 0, 0, 0, 0,
	45	{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_gcap, 2}, mg_ignore}
	46	};
	47
	48	mapi_clist_av1 capab_clist[] = { &capab_msgtab, &gcap_msgtab, NULL };
	49	DECLARE_MODULE_AV1(capab, NULL, NULL, capab_clist, NULL, NULL, "$Revision: 1295 $");
	50
	51	/*
	52	* mr_capab - CAPAB message handler
	53	* parv[1] = space-separated list of capabilities
	54	*
	55	*/
	56	static int
	57	mr_capab(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
	58	{
	59	int i;
	60	char *p;
	61	char *s;
	62
	63	/* ummm, this shouldn't happen. Could argue this should be logged etc. */
	64	if(client_p->localClient == NULL)
	65	return 0;
	66
	67	if(client_p->user)
	68	return 0;
	69
	70	/* CAP_TS6 is set in PASS, so is valid.. */
	71	if((client_p->localClient->caps & ~CAP_TS6) != 0)
	72	{
	73	exit_client(client_p, client_p, client_p, "CAPAB received twice");
	74	return 0;
	75	}
	76	else
	77	client_p->localClient->caps \|= CAP_CAP;
	78
	79	rb_free(client_p->localClient->fullcaps);
	80	client_p->localClient->fullcaps = rb_strdup(parv[1]);
	81
	82	for (i = 1; i < parc; i++)
	83	{
	84	char *t = LOCAL_COPY(parv[i]);
	85	for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p))
	86	client_p->localClient->caps \|= capability_get(serv_capindex, s);
	87	}
	88
	89	return 0;
	90	}
	91
	92	static int
	93	me_gcap(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p,
	94	int parc, const char *parv[])
	95	{
	96	char *t = LOCAL_COPY(parv[1]);
	97	char *s;
	98	char *p;
	99
	100	if(!IsServer(source_p))
	101	return 0;
	102
	103	/* already had GCAPAB?! */
	104	if(!EmptyString(source_p->serv->fullcaps))
	105	{
	106	source_p->serv->caps = 0;
	107	rb_free(source_p->serv->fullcaps);
	108	}
	109
	110	source_p->serv->fullcaps = rb_strdup(parv[1]);
	111
	112	for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p))
	113	source_p->serv->caps \|= capability_get(serv_capindex, s);
	114
	115	return 0;
	116	}