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

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Revision 32 - (show annotations)
Sun Oct 2 20:41:23 2005 UTC (14 years, 2 months ago) by knight
File MIME type: text/x-chdr
File size: 4756 byte(s)
- svn:keywords

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_etrace.c: Traces a path to a client/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 "tools.h"
28 #include "hook.h"
29 #include "client.h"
30 #include "hash.h"
31 #include "common.h"
32 #include "irc_string.h"
33 #include "ircd.h"
34 #include "numeric.h"
35 #include "fdlist.h"
36 #include "s_bsd.h"
37 #include "s_serv.h"
38 #include "send.h"
39 #include "msg.h"
40 #include "parse.h"
41 #include "modules.h"
42 #include "s_conf.h"
43 #include "irc_getnameinfo.h"
44
45 #define FORM_STR_RPL_ETRACE ":%s 709 %s %s %s %s %s %s :%s"
46
47 static void do_etrace(struct Client *, int, char **);
48 static void mo_etrace(struct Client *, struct Client *, int, char *[]);
49
50 struct Message etrace_msgtab = {
51 "ETRACE", 0, 0, 0, 0, MFLG_SLOW, 0,
52 {m_unregistered, m_ignore, m_ignore, m_ignore, mo_etrace, m_ignore}
53 };
54
55 #ifndef STATIC_MODULES
56 const char *_version = "$Revision$";
57 static struct Callback *etrace_cb;
58
59 static void *
60 va_etrace(va_list args)
61 {
62 struct Client *source_p = va_arg(args, struct Client *);
63 int parc = va_arg(args, int);
64 char **parv = va_arg(args, char **);
65
66 do_etrace(source_p, parc, parv);
67 return NULL;
68 }
69
70 void
71 _modinit(void)
72 {
73 etrace_cb = register_callback("doing_etrace", va_etrace);
74 mod_add_cmd(&etrace_msgtab);
75 }
76
77 void
78 _moddeinit(void)
79 {
80 mod_del_cmd(&etrace_msgtab);
81 uninstall_hook(etrace_cb, va_etrace);
82 }
83 #endif
84
85 static void report_this_status(struct Client *, struct Client *);
86
87 /*
88 * do_etrace()
89 */
90 static void
91 do_etrace(struct Client *source_p, int parc, char **parv)
92 {
93 const char *tname = NULL;
94 struct Client *target_p = NULL;
95 int wilds = 0;
96 int do_all = 0;
97 dlink_node *ptr;
98
99 if (parc > 0)
100 {
101 tname = parv[1];
102 if (tname != NULL)
103 wilds = strchr(tname, '*') || strchr(tname, '?');
104 else
105 tname = "*";
106 }
107 else
108 {
109 do_all = 1;
110 tname = "*";
111 }
112
113 if (!wilds && !do_all)
114 {
115 target_p = find_client(tname);
116
117 if (target_p && MyClient(target_p))
118 report_this_status(source_p, target_p);
119
120 sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name,
121 source_p->name, tname);
122 return;
123 }
124
125 DLINK_FOREACH(ptr, local_client_list.head)
126 {
127 target_p = ptr->data;
128
129 if (wilds)
130 {
131 if (match(tname, target_p->name) || match(target_p->name, tname))
132 report_this_status(source_p, target_p);
133 }
134 else
135 report_this_status(source_p, target_p);
136 }
137
138 sendto_one(source_p, form_str(RPL_ENDOFTRACE), me.name,
139 source_p->name, tname);
140 }
141
142 /* mo_etrace()
143 * parv[0] = sender prefix
144 * parv[1] = servername
145 */
146 static void
147 mo_etrace(struct Client *client_p, struct Client *source_p,
148 int parc, char *parv[])
149 {
150 #ifdef STATIC_MODULES
151 do_etrace(source_p, parc, parv);
152 #else
153 execute_callback(etrace_cb, source_p, parc, parv);
154 #endif
155 }
156
157 /* report_this_status()
158 *
159 * inputs - pointer to client to report to
160 * - pointer to client to report about
161 * output - NONE
162 * side effects - NONE
163 */
164 static void
165 report_this_status(struct Client *source_p, struct Client *target_p)
166 {
167 const char *name;
168 const char *class_name;
169 char ip[HOSTIPLEN];
170
171 /* Should this be sockhost? - stu */
172 irc_getnameinfo((struct sockaddr*)&target_p->localClient->ip,
173 target_p->localClient->ip.ss_len, ip, HOSTIPLEN, NULL, 0,
174 NI_NUMERICHOST);
175
176 name = get_client_name(target_p, HIDE_IP);
177 class_name = get_client_class(target_p);
178
179 set_time();
180
181 if (target_p->status == STAT_CLIENT)
182 {
183 if (ConfigFileEntry.hide_spoof_ips)
184 sendto_one(source_p, FORM_STR_RPL_ETRACE,
185 me.name, source_p->name,
186 IsOper(target_p) ? "Oper" : "User",
187 class_name,
188 target_p->name, target_p->username,
189 IsIPSpoof(target_p) ? "255.255.255.255" : ip,
190 target_p->info);
191 else
192 sendto_one(source_p, FORM_STR_RPL_ETRACE,
193 me.name, source_p->name,
194 IsOper(target_p) ? "Oper" : "User",
195 class_name,
196 target_p->name, target_p->username, ip,
197 target_p->info);
198 }
199 }

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