/[svn]/ircd-hybrid/trunk/modules/m_pong.c
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Contents of /ircd-hybrid/trunk/modules/m_pong.c

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Revision 1652 - (show annotations)
Tue Nov 13 20:28:53 2012 UTC (7 years, 7 months ago) by michael
File MIME type: text/x-chdr
File size: 3620 byte(s)
- changed match() polarity. match() now returns 0 on match and 1 on non-match
  This cleans up several places where function pointers of different matching
  functions like irccmp/strcmp/match are passed to other functions.
- added improved collapse() to match.c

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_pong.c: The reply to a ping message.
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 "ircd.h"
27 #include "s_user.h"
28 #include "client.h"
29 #include "hash.h" /* for find_client() */
30 #include "numeric.h"
31 #include "conf.h"
32 #include "send.h"
33 #include "irc_string.h"
34 #include "parse.h"
35 #include "modules.h"
36
37
38 static void
39 ms_pong(struct Client *client_p, struct Client *source_p,
40 int parc, char *parv[])
41 {
42 struct Client *target_p;
43 const char *origin, *destination;
44
45 if (parc < 2 || EmptyString(parv[1]))
46 {
47 sendto_one(source_p, form_str(ERR_NOORIGIN),
48 me.name, source_p->name);
49 return;
50 }
51
52 origin = parv[1];
53 destination = parv[2];
54
55 /* Now attempt to route the PONG, comstud pointed out routable PING
56 * is used for SPING. routable PING should also probably be left in
57 * -Dianora
58 * That being the case, we will route, but only for registered clients (a
59 * case can be made to allow them only from servers). -Shadowfax
60 */
61 if (!EmptyString(destination) && match(destination, me.name) &&
62 irccmp(destination, me.id))
63 {
64 if ((target_p = hash_find_client(destination)) ||
65 (target_p = hash_find_server(destination)))
66 sendto_one(target_p, ":%s PONG %s %s",
67 source_p->name, origin, destination);
68 else
69 {
70 sendto_one(source_p, form_str(ERR_NOSUCHSERVER),
71 me.name, source_p->name, destination);
72 return;
73 }
74 }
75 }
76
77 static void
78 mr_pong(struct Client *client_p, struct Client *source_p,
79 int parc, char *parv[])
80 {
81 assert(source_p == client_p);
82
83 if (parc == 2 && *parv[1] != '\0')
84 {
85 if (ConfigFileEntry.ping_cookie && !source_p->localClient->registration)
86 {
87 unsigned int incoming_ping = strtoul(parv[1], NULL, 10);
88
89 if (incoming_ping)
90 {
91 if (source_p->localClient->random_ping == incoming_ping)
92 {
93 SetPingCookie(source_p);
94 register_local_user(source_p);
95 }
96 else
97 {
98 sendto_one(source_p, form_str(ERR_WRONGPONG), me.name,
99 source_p->name, source_p->localClient->random_ping);
100 return;
101 }
102 }
103 }
104 }
105 else
106 sendto_one(source_p, form_str(ERR_NOORIGIN),
107 me.name, source_p->name);
108 }
109
110 static struct Message pong_msgtab = {
111 "PONG", 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
112 {mr_pong, m_ignore, ms_pong, m_ignore, m_ignore, m_ignore}
113 };
114
115 static void
116 module_init(void)
117 {
118 mod_add_cmd(&pong_msgtab);
119 }
120
121 static void
122 module_exit(void)
123 {
124 mod_del_cmd(&pong_msgtab);
125 }
126
127 struct module module_entry = {
128 .node = { NULL, NULL, NULL },
129 .name = NULL,
130 .version = "$Revision$",
131 .handle = NULL,
132 .modinit = module_init,
133 .modexit = module_exit,
134 .flags = 0
135 };

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