/[svn]/ircd-hybrid-7.2/modules/m_userhost.c
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Contents of /ircd-hybrid-7.2/modules/m_userhost.c

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Revision 885 - (show annotations)
Wed Oct 31 18:09:24 2007 UTC (12 years, 8 months ago) by michael
File MIME type: text/x-chdr
File size: 3500 byte(s)
- Removed LazyLinks in 7.2 to stop people from asking why we keep
  broken code for half a decade. LL will be implemented in a smarter
  fashion in due time

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_userhost.c: Shows a user's host.
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 "ircd.h"
29 #include "numeric.h"
30 #include "s_serv.h"
31 #include "send.h"
32 #include "irc_string.h"
33 #include "sprintf_irc.h"
34 #include "msg.h"
35 #include "parse.h"
36 #include "modules.h"
37 #include "s_conf.h"
38
39
40 static void m_userhost(struct Client *, struct Client *, int, char *[]);
41
42 struct Message userhost_msgtab = {
43 "USERHOST", 0, 0, 1, 0, MFLG_SLOW, 0,
44 {m_unregistered, m_userhost, m_userhost, m_ignore, m_userhost, m_ignore}
45 };
46
47 #ifndef STATIC_MODULES
48 void
49 _modinit(void)
50 {
51 mod_add_cmd(&userhost_msgtab);
52 }
53
54 void
55 _moddeinit(void)
56 {
57 mod_del_cmd(&userhost_msgtab);
58 }
59
60 const char *_version = "$Revision$";
61 #endif
62
63 /*
64 * m_userhost added by Darren Reed 13/8/91 to aid clients and reduce
65 * the need for complicated requests like WHOIS. It returns user/host
66 * information only (no spurious AWAY labels or channels).
67 */
68 static void
69 m_userhost(struct Client *client_p, struct Client *source_p,
70 int parc, char *parv[])
71 {
72 struct Client *target_p;
73 char buf[IRCD_BUFSIZE];
74 char response[NICKLEN*2+USERLEN+HOSTLEN+30];
75 char *t;
76 int i; /* loop counter */
77 int cur_len;
78 int rl;
79
80 cur_len = ircsprintf(buf,form_str(RPL_USERHOST),me.name, parv[0], "");
81 t = buf + cur_len;
82
83 for (i = 0; i < 5; i++)
84 {
85 if (parv[i + 1] == NULL)
86 break;
87
88 if ((target_p = find_person(client_p, parv[i+1])) != NULL)
89 {
90 /*
91 * Show real IP for USERHOST on yourself.
92 * This is needed for things like mIRC, which do a server-based
93 * lookup (USERHOST) to figure out what the clients' local IP
94 * is. Useful for things like NAT, and dynamic dial-up users.
95 */
96 if (MyClient(target_p) && (target_p == source_p))
97 {
98 rl = ircsprintf(response, "%s%s=%c%s@%s ",
99 target_p->name,
100 IsOper(target_p) ? "*" : "",
101 (target_p->away) ? '-' : '+',
102 target_p->username,
103 target_p->sockhost);
104 }
105 else
106 {
107 rl = ircsprintf(response, "%s%s=%c%s@%s ",
108 target_p->name,
109 IsOper(target_p) ? "*" : "",
110 (target_p->away) ? '-' : '+',
111 target_p->username,
112 target_p->host);
113 }
114
115 if ((rl + cur_len) < (IRCD_BUFSIZE - 10))
116 {
117 ircsprintf(t, "%s", response);
118 t += rl;
119 cur_len += rl;
120 }
121 else
122 break;
123 }
124 }
125
126 sendto_one(source_p, "%s", buf);
127 }

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