/[svn]/ircd-hybrid-7.2/modules/m_capab.c
ViewVC logotype

Contents of /ircd-hybrid-7.2/modules/m_capab.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 969 - (show annotations)
Sun Aug 2 22:48:53 2009 UTC (10 years, 4 months ago) by michael
File MIME type: text/x-chdr
File size: 3256 byte(s)
- cleanup m_capab() while reviewing: remove useless non-NULL test on p->localClient

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_capab.c: Negotiates capabilities with a remote server.
4 *
5 * Copyright (C) 2002 by the past and present ircd coders, and others.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 * USA
21 *
22 * $Id$
23 */
24
25 #include "stdinc.h"
26 #include "handlers.h"
27 #include "client.h"
28 #include "irc_string.h"
29 #include "s_serv.h"
30 #include "s_conf.h"
31 #include "msg.h"
32 #include "parse.h"
33 #include "modules.h"
34
35 static void mr_capab(struct Client *, struct Client *, int, char *[]);
36
37 struct Message capab_msgtab = {
38 "CAPAB", 0, 0, 0, 0, MFLG_SLOW | MFLG_UNREG, 0,
39 { mr_capab, m_ignore, m_ignore, m_ignore, m_ignore, m_ignore }
40 };
41
42 #ifndef STATIC_MODULES
43 void
44 _modinit(void)
45 {
46 mod_add_cmd(&capab_msgtab);
47 }
48
49 void
50 _moddeinit(void)
51 {
52 mod_del_cmd(&capab_msgtab);
53 }
54
55 const char *_version = "$Revision$";
56 #endif
57
58 /*
59 * mr_capab - CAPAB message handler
60 * parv[0] = sender prefix
61 * parv[1] = space-separated list of capabilities
62 *
63 */
64 static void
65 mr_capab(struct Client *client_p, struct Client *source_p,
66 int parc, char *parv[])
67 {
68 int i;
69 int cap;
70 char *p = NULL;
71 char *s = NULL;
72 #ifdef HAVE_LIBCRYPTO
73 const struct EncCapability *ecap;
74 unsigned int cipher = 0;
75 #endif
76
77 if (client_p->localClient->caps && !(IsCapable(client_p, CAP_TS6)))
78 {
79 exit_client(client_p, client_p, "CAPAB received twice");
80 return;
81 }
82
83 SetCapable(client_p, CAP_CAP);
84
85 for (i = 1; i < parc; ++i)
86 {
87 for (s = strtoken(&p, parv[i], " "); s;
88 s = strtoken(&p, NULL, " "))
89 {
90 #ifdef HAVE_LIBCRYPTO
91 if (!strncmp(s, "ENC:", 4))
92 {
93 /* Skip the "ENC:" portion */
94 s += 4;
95
96 /* Check the remaining portion against the list of ciphers we
97 * have available (CipherTable).
98 */
99 for (ecap = CipherTable; ecap->name; ++ecap)
100 {
101 if (!irccmp(ecap->name, s) && (ecap->cap & CAP_ENC_MASK))
102 {
103 cipher = ecap->cap;
104 break;
105 }
106 }
107
108 /* Since the name and capabilities matched, use it. */
109 if (cipher != 0)
110 {
111 SetCapable(client_p, CAP_ENC);
112 client_p->localClient->enc_caps |= cipher;
113 }
114 else
115 {
116 /* cipher is still zero; we didn't find a matching entry. */
117 exit_client(client_p, client_p,
118 "Cipher selected is not available here.");
119 return;
120 }
121 }
122 else /* normal capab */
123 #endif
124 if ((cap = find_capability(s)) != 0)
125 SetCapable(client_p, cap);
126 }
127 }
128 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision

svnadmin@ircd-hybrid.org
ViewVC Help
Powered by ViewVC 1.1.26