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/*
* ircd-ratbox: A slightly useful ircd.
* m_capab.c: Negotiates capabilities with a remote server.
*
* 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
*
* $Id: m_capab.c 1295 2006-05-08 13:05:25Z nenolod $
*/
#include "stdinc.h"
#include "client.h"
#include "match.h"
#include "s_serv.h"
#include "s_conf.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
static int mr_capab(struct Client *, struct Client *, int, const char **);
static int me_gcap(struct Client *, struct Client *, int, const char **);
struct Message capab_msgtab = {
"CAPAB", 0, 0, 0, MFLG_SLOW | MFLG_UNREG,
{{mr_capab, 2}, mg_ignore, mg_ignore, mg_ignore, mg_ignore, mg_ignore}
};
struct Message gcap_msgtab = {
"GCAP", 0, 0, 0, MFLG_SLOW,
{mg_ignore, mg_ignore, mg_ignore, mg_ignore, {me_gcap, 2}, mg_ignore}
};
mapi_clist_av1 capab_clist[] = { &capab_msgtab, &gcap_msgtab, NULL };
DECLARE_MODULE_AV1(capab, NULL, NULL, capab_clist, NULL, NULL, "$Revision: 1295 $");
/*
* mr_capab - CAPAB message handler
* parv[1] = space-separated list of capabilities
*
*/
static int
mr_capab(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Capability *cap;
int i;
char *p;
char *s;
/* ummm, this shouldn't happen. Could argue this should be logged etc. */
if(client_p->localClient == NULL)
return 0;
if(client_p->user)
return 0;
/* CAP_TS6 is set in PASS, so is valid.. */
if((client_p->localClient->caps & ~CAP_TS6) != 0)
{
exit_client(client_p, client_p, client_p, "CAPAB received twice");
return 0;
}
else
client_p->localClient->caps |= CAP_CAP;
rb_free(client_p->localClient->fullcaps);
client_p->localClient->fullcaps = rb_strdup(parv[1]);
for (i = 1; i < parc; i++)
{
char *t = LOCAL_COPY(parv[i]);
for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p))
{
for (cap = captab; cap->name; cap++)
{
if(!irccmp(cap->name, s))
{
client_p->localClient->caps |= cap->cap;
break;
}
}
}
}
return 0;
}
static int
me_gcap(struct Client *client_p, struct Client *source_p,
int parc, const char *parv[])
{
struct Capability *cap;
char *t = LOCAL_COPY(parv[1]);
char *s;
char *p;
if(!IsServer(source_p))
return 0;
/* already had GCAPAB?! */
if(!EmptyString(source_p->serv->fullcaps))
{
source_p->serv->caps = 0;
rb_free(source_p->serv->fullcaps);
}
source_p->serv->fullcaps = rb_strdup(parv[1]);
for (s = rb_strtok_r(t, " ", &p); s; s = rb_strtok_r(NULL, " ", &p))
{
for (cap = captab; cap->name; cap++)
{
if(!irccmp(cap->name, s))
{
source_p->serv->caps |= cap->cap;
break;
}
}
}
return 0;
}
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