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

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Revision 575 - (show annotations)
Mon May 1 11:41:09 2006 UTC (14 years, 3 months ago) by michael
File MIME type: text/x-chdr
File size: 5847 byte(s)
- Fixed a bunch of compile warnings

1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_links.c: Shows what servers are currently connected.
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 "ircd.h"
30 #include "numeric.h"
31 #include "s_serv.h"
32 #include "send.h"
33 #include "s_conf.h"
34 #include "msg.h"
35 #include "motd.h"
36 #include "parse.h"
37 #include "modules.h"
38 #include "hook.h"
39
40 static void do_links(struct Client *, int, char **);
41 static void m_links(struct Client*, struct Client*, int, char**);
42 static void mo_links(struct Client*, struct Client*, int, char**);
43 static void ms_links(struct Client*, struct Client*, int, char**);
44
45 struct Message links_msgtab = {
46 "LINKS", 0, 0, 0, 0, MFLG_SLOW, 0,
47 {m_unregistered, m_links, ms_links, m_ignore, mo_links, m_ignore}
48 };
49
50 #ifndef STATIC_MODULES
51 const char *_version = "$Revision$";
52 static struct Callback *links_cb;
53
54 static void *
55 va_links(va_list args)
56 {
57 struct Client *source_p = va_arg(args, struct Client *);
58 int parc = va_arg(args, int);
59 char **parv = va_arg(args, char **);
60
61 do_links(source_p, parc, parv);
62 return NULL;
63 }
64
65 void
66 _modinit(void)
67 {
68 links_cb = register_callback("doing_links", va_links);
69 mod_add_cmd(&links_msgtab);
70 }
71
72 void
73 _moddeinit(void)
74 {
75 mod_del_cmd(&links_msgtab);
76 uninstall_hook(links_cb, va_links);
77 }
78
79 #endif
80
81 static void
82 do_links(struct Client *source_p, int parc, char **parv)
83 {
84 if (IsOper(source_p) || !ConfigServerHide.flatten_links)
85 {
86 char *mask = (parc > 2 ? parv[2] : parv[1]);
87 const char *me_name, *nick, *p;
88 struct Client *target_p;
89 char clean_mask[2 * HOSTLEN + 4];
90 dlink_node *ptr;
91
92 if (!EmptyString(mask)) /* only necessary if there is a mask */
93 mask = collapse(clean_string(clean_mask, (const unsigned char*) mask, 2 * HOSTLEN));
94
95 me_name = ID_or_name(&me, source_p->from);
96 nick = ID_or_name(source_p, source_p->from);
97
98 DLINK_FOREACH(ptr, global_serv_list.head)
99 {
100 target_p = ptr->data;
101
102 if (!EmptyString(mask) && !match(mask, target_p->name))
103 continue;
104
105 if (target_p->info[0])
106 {
107 if ((p = strchr(target_p->info, ']')))
108 p += 2; /* skip the nasty [IP] part */
109 else
110 p = target_p->info;
111 }
112 else
113 p = "(Unknown Location)";
114
115 /* We just send the reply, as if they are here there's either no SHIDE,
116 * or they're an oper..
117 */
118 sendto_one(source_p, form_str(RPL_LINKS),
119 me_name, nick,
120 target_p->name, target_p->servptr->name,
121 target_p->hopcount, p);
122 }
123
124 sendto_one(source_p, form_str(RPL_ENDOFLINKS),
125 me_name, nick,
126 EmptyString(mask) ? "*" : mask);
127 }
128 else {
129 /*
130 * Print our own info so at least it looks like a normal links
131 * then print out the file (which may or may not be empty)
132 */
133 sendto_one(source_p, form_str(RPL_LINKS),
134 ID_or_name(&me, source_p->from),
135 ID_or_name(source_p, source_p->from),
136 me.name, me.name, 0, me.info);
137 send_message_file(source_p, &ConfigFileEntry.linksfile);
138 sendto_one(source_p, form_str(RPL_ENDOFLINKS),
139 ID_or_name(&me, source_p->from),
140 ID_or_name(source_p, source_p->from), "*");
141 }
142 }
143
144 /*
145 * m_links - LINKS message handler
146 * parv[0] = sender prefix
147 * parv[1] = servername mask
148 * or
149 * parv[0] = sender prefix
150 * parv[1] = server to query
151 * parv[2] = servername mask
152 */
153 static void
154 m_links(struct Client *client_p, struct Client *source_p,
155 int parc, char *parv[])
156 {
157 static time_t last_used = 0;
158
159 if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
160 {
161 sendto_one(source_p, form_str(RPL_LOAD2HI),
162 me.name, source_p->name);
163 return;
164 }
165 else
166 last_used = CurrentTime;
167
168 if (!ConfigServerHide.flatten_links)
169 {
170 mo_links(client_p, source_p, parc, parv);
171 return;
172 }
173
174 #ifdef STATIC_MODULES
175 do_links(source_p, parc, parv);
176 #else
177 execute_callback(links_cb, source_p, parc, parv);
178 #endif
179 }
180
181 static void
182 mo_links(struct Client *client_p, struct Client *source_p,
183 int parc, char *parv[])
184 {
185 if (parc > 2)
186 if (!ConfigFileEntry.disable_remote || IsOper(source_p))
187 {
188 if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1, parc, parv)
189 != HUNTED_ISME)
190 return;
191 }
192
193 #ifdef STATIC_MODULES
194 do_links(source_p, parc, parv);
195 #else
196 execute_callback(links_cb, source_p, parc, parv);
197 #endif
198 }
199
200 /*
201 * ms_links - LINKS message handler
202 * parv[0] = sender prefix
203 * parv[1] = servername mask
204 * or
205 * parv[0] = sender prefix
206 * parv[1] = server to query
207 * parv[2] = servername mask
208 */
209 static void
210 ms_links(struct Client *client_p, struct Client *source_p,
211 int parc, char *parv[])
212 {
213 if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1, parc, parv)
214 != HUNTED_ISME)
215 return;
216
217 if (IsClient(source_p))
218 m_links(client_p, source_p, parc, parv);
219 }

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