135 lines
3.5 KiB
C
135 lines
3.5 KiB
C
/*
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* NeoIRCd: NeoStats Group. Based on Hybird7
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* m_away.c: Negotiates capabilities with a remote server.
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*
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* Copyright (C) 2002 by the past and present ircd coders, and others.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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* $Id: m_capab.c,v 1.3 2002/09/13 06:50:06 fishwaldo Exp $
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*/
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#include "stdinc.h"
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#include "handlers.h"
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#include "client.h"
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#include "irc_string.h"
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#include "s_serv.h"
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#include "s_conf.h"
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#include "msg.h"
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#include "parse.h"
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#include "modules.h"
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static void mr_capab(struct Client*, struct Client*, int, char**);
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struct Message capab_msgtab = {
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"CAPAB", 0, 0, 0, 0, MFLG_SLOW | MFLG_UNREG, 0,
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{mr_capab, m_ignore, m_ignore, m_ignore}
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};
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#ifndef STATIC_MODULES
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void
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_modinit(void)
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{
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mod_add_cmd(&capab_msgtab);
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}
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void
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_moddeinit(void)
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{
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mod_del_cmd(&capab_msgtab);
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}
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const char *_version = "$Revision: 1.3 $";
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#endif
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/*
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* mr_capab - CAPAB message handler
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* parv[0] = sender prefix
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* parv[1] = space-separated list of capabilities
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*
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*/
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static void mr_capab(struct Client *client_p, struct Client *source_p,
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int parc, char *parv[])
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{
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struct Capability *cap;
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int i;
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char* p;
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char* s;
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#ifdef HAVE_LIBCRYPTO
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struct EncCapability *ecap;
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unsigned int cipher = 0;
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#endif
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/* ummm, this shouldn't happen. Could argue this should be logged etc. */
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if (client_p->localClient == NULL)
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return;
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if (client_p->localClient->caps)
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{
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exit_client(client_p, client_p, client_p, "CAPAB received twice");
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return;
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}
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else
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client_p->localClient->caps |= CAP_CAP;
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for (i=1; i<parc; i++)
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{
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for (s = strtoken(&p, parv[i], " "); s; s = strtoken(&p, NULL, " "))
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{
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#ifdef HAVE_LIBCRYPTO
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if ( (strncmp(s, "ENC:", 4) == 0) )
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{
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/* Skip the "ENC:" portion */
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s += 4;
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/* Check the remaining portion against the list of ciphers we
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* have available (CipherTable).
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*/
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for (ecap = CipherTable; ecap->name; ecap++)
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{
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if ( (!irccmp(ecap->name, s)) && (ecap->cap & CAP_ENC_MASK))
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{
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cipher = ecap->cap;
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break;
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}
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}
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/* Since the name and capabilities matched, use it. */
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if (cipher != 0)
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{
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SetCapable(client_p, CAP_ENC);
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client_p->localClient->enc_caps |= cipher;
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}
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else
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{
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/* cipher is still zero; we didn't find a matching entry. */
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exit_client(client_p, client_p, client_p,
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"Cipher selected is not available here.");
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return;
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}
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}
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else /* normal capab */
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#endif
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for (cap = captab; cap->name; cap++)
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{
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if (!irccmp(cap->name, s))
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{
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client_p->localClient->caps |= cap->cap;
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break;
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}
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}
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} /* for */
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} /* for */
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}
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