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root/svn/ircd-hybrid-7.2/modules/m_names.c
Revision: 885
Committed: Wed Oct 31 18:09:24 2007 UTC (16 years, 5 months ago) by michael
Content type: text/x-csrc
File size: 4968 byte(s)
Log Message:
- 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

File Contents

# Content
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 static void m_names(struct Client *, struct Client *, int, char *[]);
49
50 struct Message names_msgtab = {
51 "NAMES", 0, 0, 0, 0, MFLG_SLOW, 0,
52 {m_unregistered, m_names, m_ignore, m_ignore, m_names, m_ignore}
53 };
54
55 #ifndef STATIC_MODULES
56 void
57 _modinit(void)
58 {
59 mod_add_cmd(&names_msgtab);
60 }
61
62 void
63 _moddeinit(void)
64 {
65 mod_del_cmd(&names_msgtab);
66 }
67
68 const char *_version = "$Revision$";
69 #endif
70
71 /************************************************************************
72 * m_names() - Added by Jto 27 Apr 1989
73 ************************************************************************/
74
75 /*
76 ** m_names
77 ** parv[0] = sender prefix
78 ** parv[1] = channel
79 */
80 static void
81 m_names(struct Client *client_p, struct Client *source_p,
82 int parc, char *parv[])
83 {
84 struct Channel *chptr = NULL;
85 char *s;
86 char *para = parc > 1 ? parv[1] : NULL;
87
88 if (!EmptyString(para))
89 {
90 while (*para == ',')
91 ++para;
92
93 if ((s = strchr(para, ',')) != NULL)
94 *s = '\0';
95
96 if (*para == '\0')
97 return;
98
99 if ((chptr = hash_find_channel(para)) != NULL)
100 channel_member_names(source_p, chptr, 1);
101 else
102 sendto_one(source_p, form_str(RPL_ENDOFNAMES),
103 me.name, source_p->name, para);
104 }
105 else
106 {
107 names_all_visible_channels(source_p);
108 names_non_public_non_secret(source_p);
109 sendto_one(source_p, form_str(RPL_ENDOFNAMES),
110 me.name, source_p->name, "*");
111 }
112 }
113
114 /* names_all_visible_channels()
115 *
116 * inputs - pointer to client struct requesting names
117 * output - none
118 * side effects - lists all visible channels whee!
119 */
120 static void
121 names_all_visible_channels(struct Client *source_p)
122 {
123 dlink_node *ptr = NULL;
124
125 /*
126 * First, do all visible channels (public and the one user self is)
127 */
128 DLINK_FOREACH(ptr, global_channel_list.head)
129 {
130 /* Find users on same channel (defined by chptr) */
131 channel_member_names(source_p, ptr->data, 0);
132 }
133 }
134
135 /* names_non_public_non_secret()
136 *
137 * inputs - pointer to client struct requesting names
138 * output - none
139 * side effects - lists all non public non secret channels
140 */
141 static void
142 names_non_public_non_secret(struct Client *source_p)
143 {
144 int mlen, tlen, cur_len;
145 int reply_to_send = NO;
146 int shown_already;
147 dlink_node *gc2ptr, *lp;
148 struct Client *c2ptr;
149 struct Channel *ch3ptr = NULL;
150 char buf[IRCD_BUFSIZE];
151 char *t;
152
153 mlen = ircsprintf(buf,form_str(RPL_NAMREPLY),
154 me.name, source_p->name, "*", "*");
155 cur_len = mlen;
156 t = buf + mlen;
157
158 /* Second, do all non-public, non-secret channels in one big sweep */
159 DLINK_FOREACH(gc2ptr, global_client_list.head)
160 {
161 c2ptr = gc2ptr->data;
162
163 if (!IsClient(c2ptr) || IsInvisible(c2ptr))
164 continue;
165
166 shown_already = NO;
167
168 /* We already know the user is not +i. If they are on no common
169 * channels with source_p, they have not been shown yet. */
170 DLINK_FOREACH(lp, c2ptr->channel.head)
171 {
172 ch3ptr = ((struct Membership *) lp->data)->chptr;
173
174 if (IsMember(source_p, ch3ptr))
175 {
176 shown_already = YES;
177 break;
178 }
179 }
180
181 if (shown_already)
182 continue;
183
184 tlen = strlen(c2ptr->name);
185 if (cur_len + tlen + 1 > IRCD_BUFSIZE - 2)
186 {
187 sendto_one(source_p, "%s", buf);
188 cur_len = mlen;
189 t = buf + mlen;
190 }
191
192 strcpy(t, c2ptr->name);
193 t += tlen;
194
195 *t++ = ' ';
196 *t = 0;
197
198 cur_len += tlen + 1;
199
200 reply_to_send = YES;
201 }
202
203 if (reply_to_send)
204 sendto_one(source_p, "%s", buf);
205 }

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