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

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Revision 34 - (show annotations)
Sun Oct 2 21:05:51 2005 UTC (14 years, 1 month ago) by lusky
File MIME type: text/x-chdr
File size: 5656 byte(s)
create 7.2 branch, we can move/rename it as needed.


1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 * m_names.c: Shows the users who are online.
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 "tools.h"
27 #include "handlers.h"
28 #include "channel.h"
29 #include "channel_mode.h"
30 #include "client.h"
31 #include "common.h" /* bleah */
32 #include "hash.h"
33 #include "irc_string.h"
34 #include "sprintf_irc.h"
35 #include "ircd.h"
36 #include "list.h"
37 #include "numeric.h"
38 #include "send.h"
39 #include "s_serv.h"
40 #include "s_conf.h"
41 #include "msg.h"
42 #include "parse.h"
43 #include "modules.h"
44
45
46 static void names_all_visible_channels(struct Client *);
47 static void names_non_public_non_secret(struct Client *);
48
49 static void m_names(struct Client *, struct Client *, int, char *[]);
50 static void ms_names(struct Client *, struct Client *, int, char *[]);
51
52 struct Message names_msgtab = {
53 "NAMES", 0, 0, 0, 0, MFLG_SLOW, 0,
54 {m_unregistered, m_names, ms_names, m_ignore, m_names, m_ignore}
55 };
56
57 #ifndef STATIC_MODULES
58 void
59 _modinit(void)
60 {
61 mod_add_cmd(&names_msgtab);
62 }
63
64 void
65 _moddeinit(void)
66 {
67 mod_del_cmd(&names_msgtab);
68 }
69
70 const char *_version = "$Revision$";
71 #endif
72
73 /************************************************************************
74 * m_names() - Added by Jto 27 Apr 1989
75 ************************************************************************/
76
77 /*
78 ** m_names
79 ** parv[0] = sender prefix
80 ** parv[1] = channel
81 */
82 static void
83 m_names(struct Client *client_p, struct Client *source_p,
84 int parc, char *parv[])
85 {
86 struct Channel *chptr = NULL;
87 char *s;
88 char *para = parc > 1 ? parv[1] : NULL;
89
90 if (!EmptyString(para))
91 {
92 while (*para == ',')
93 para++;
94
95 if ((s = strchr(para, ',')) != NULL)
96 *s = '\0';
97
98 if (*para == '\0')
99 return;
100
101 if (!check_channel_name(para))
102 {
103 sendto_one(source_p, form_str(ERR_BADCHANNAME),
104 me.name, source_p->name, para);
105 return;
106 }
107
108 if ((chptr = hash_find_channel(para)) != NULL)
109 channel_member_names(source_p, chptr, 1);
110 else
111 sendto_one(source_p, form_str(RPL_ENDOFNAMES),
112 me.name, source_p->name, para);
113 }
114 else
115 {
116 names_all_visible_channels(source_p);
117 names_non_public_non_secret(source_p);
118 sendto_one(source_p, form_str(RPL_ENDOFNAMES),
119 me.name, source_p->name, "*");
120 }
121 }
122
123 /* names_all_visible_channels()
124 *
125 * inputs - pointer to client struct requesting names
126 * output - none
127 * side effects - lists all visible channels whee!
128 */
129 static void
130 names_all_visible_channels(struct Client *source_p)
131 {
132 dlink_node *ptr;
133 struct Channel *chptr;
134
135 /*
136 * First, do all visible channels (public and the one user self is)
137 */
138 DLINK_FOREACH(ptr, global_channel_list.head)
139 {
140 chptr = ptr->data;
141
142 /* Find users on same channel (defined by chptr) */
143 channel_member_names(source_p, chptr, 0);
144 }
145 }
146
147 /* names_non_public_non_secret()
148 *
149 * inputs - pointer to client struct requesting names
150 * output - none
151 * side effects - lists all non public non secret channels
152 */
153 static void
154 names_non_public_non_secret(struct Client *source_p)
155 {
156 int mlen, tlen, cur_len;
157 int reply_to_send = NO;
158 int shown_already;
159 dlink_node *gc2ptr, *lp;
160 struct Client *c2ptr;
161 struct Channel *ch3ptr = NULL;
162 char buf[IRCD_BUFSIZE];
163 char *t;
164
165 mlen = ircsprintf(buf,form_str(RPL_NAMREPLY),
166 me.name, source_p->name, "*", "*");
167 cur_len = mlen;
168 t = buf + mlen;
169
170 /* Second, do all non-public, non-secret channels in one big sweep */
171 DLINK_FOREACH(gc2ptr, global_client_list.head)
172 {
173 c2ptr = gc2ptr->data;
174
175 if (!IsClient(c2ptr) || IsInvisible(c2ptr))
176 continue;
177
178 shown_already = NO;
179
180 /* We already know the user is not +i. If they are on no common
181 * channels with source_p, they have not been shown yet. */
182 DLINK_FOREACH(lp, c2ptr->channel.head)
183 {
184 ch3ptr = ((struct Membership *) lp->data)->chptr;
185
186 if (IsMember(source_p, ch3ptr))
187 {
188 shown_already = YES;
189 break;
190 }
191 }
192
193 if (shown_already)
194 continue;
195
196 tlen = strlen(c2ptr->name);
197 if (cur_len + tlen + 1 > IRCD_BUFSIZE - 2)
198 {
199 sendto_one(source_p, "%s", buf);
200 cur_len = mlen;
201 t = buf + mlen;
202 }
203
204 strcpy(t, c2ptr->name);
205 t += tlen;
206
207 *t++ = ' ';
208 *t = 0;
209
210 cur_len += tlen + 1;
211
212 reply_to_send = YES;
213 }
214
215 if (reply_to_send)
216 sendto_one(source_p, "%s", buf);
217 }
218
219 static void
220 ms_names(struct Client *client_p, struct Client *source_p,
221 int parc, char *parv[])
222 {
223 /* If its running as a hub, and linked with lazy links
224 * then allow leaf to use normal client m_names()
225 * other wise, ignore it.
226 */
227 if (ServerInfo.hub)
228 {
229 if (!IsCapable(client_p->from, CAP_LL))
230 return;
231 }
232
233 if (IsClient(source_p))
234 m_names(client_p, source_p, parc, parv);
235 }

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