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Contents of /ircd-hybrid/branches/8.2.x/modules/m_list.c

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Revision 7075 - (show annotations)
Wed Jan 20 11:47:29 2016 UTC (7 years ago) by michael
File MIME type: text/x-chdr
File size: 5597 byte(s)
- Constifications; style cleanups in some places

1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 1997-2016 ircd-hybrid development team
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19 * USA
20 */
21
22 /*! \file m_list.c
23 * \brief Includes required functions for processing the LIST command.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "client.h"
30 #include "hash.h"
31 #include "irc_string.h"
32 #include "ircd.h"
33 #include "numeric.h"
34 #include "send.h"
35 #include "parse.h"
36 #include "modules.h"
37 #include "user.h"
38 #include "memory.h"
39 #include "isupport.h"
40
41
42 static void
43 do_list(struct Client *source_p, char *arg)
44 {
45 int no_masked_channels = 1;
46
47 if (source_p->connection->list_task)
48 {
49 free_list_task(source_p);
50 sendto_one_numeric(source_p, &me, RPL_LISTEND);
51 return;
52 }
53
54 struct ListTask *lt = xcalloc(sizeof(struct ListTask));
55 lt->users_max = UINT_MAX;
56 lt->created_max = UINT_MAX;
57 lt->topicts_max = UINT_MAX;
58 source_p->connection->list_task = lt;
59
60 if (!EmptyString(arg))
61 {
62 char *opt, *save = NULL;
63 dlink_list *list = NULL;
64 int i = 0, errors = 0;
65
66 for (opt = strtok_r(arg, ",", &save); opt;
67 opt = strtok_r(NULL, ",", &save))
68 {
69 switch (*opt)
70 {
71 case '<':
72 if ((i = atoi(opt + 1)) > 0)
73 lt->users_max = (unsigned int)i - 1;
74 else
75 errors = 1;
76 break;
77 case '>':
78 if ((i = atoi(opt + 1)) >= 0)
79 lt->users_min = (unsigned int)i + 1;
80 else
81 errors = 1;
82 break;
83 case 'C':
84 case 'c':
85 switch (*++opt)
86 {
87 case '<':
88 if ((i = atoi(opt + 1)) >= 0)
89 lt->created_max = (unsigned int)(CurrentTime - 60 * i);
90 else
91 errors = 1;
92 break;
93 case '>':
94 if ((i = atoi(opt + 1)) >= 0)
95 lt->created_min = (unsigned int)(CurrentTime - 60 * i);
96 else
97 errors = 1;
98 break;
99 default:
100 errors = 1;
101 }
102
103 break;
104
105 case 'T':
106 case 't':
107 switch (*++opt)
108 {
109 case '<':
110 if ((i = atoi(opt + 1)) >= 0)
111 lt->topicts_min = (unsigned int)(CurrentTime - 60 * i);
112 else
113 errors = 1;
114 break;
115 case '>':
116 if ((i = atoi(opt + 1)) >= 0)
117 lt->topicts_max = (unsigned int)(CurrentTime - 60 * i);
118 else
119 errors = 1;
120 break;
121 case ':':
122 if (strlcpy(lt->topic, opt + 1, sizeof(lt->topic)) == 0)
123 errors = 1;
124 break;
125 default:
126 errors = 1;
127 }
128
129 break;
130
131 default:
132 if (*opt == '!')
133 {
134 list = &lt->hide_mask;
135 opt++;
136 }
137 else
138 list = &lt->show_mask;
139
140 if (has_wildcards(opt + !!IsChanPrefix(*opt)))
141 {
142 if (list == &lt->show_mask)
143 no_masked_channels = 0;
144 }
145 else if (!IsChanPrefix(*opt))
146 errors = 1;
147
148 if (!errors)
149 dlinkAdd(xstrdup(opt), make_dlink_node(), list);
150 }
151 }
152
153 if (errors)
154 {
155 free_list_task(source_p);
156 sendto_one_numeric(source_p, &me, ERR_LISTSYNTAX);
157 return;
158 }
159 }
160
161 dlinkAdd(source_p, &lt->node, &listing_client_list);
162
163 sendto_one_numeric(source_p, &me, RPL_LISTSTART);
164 safe_list_channels(source_p, no_masked_channels && lt->show_mask.head != NULL);
165 }
166
167 /*! \brief LIST command handler
168 *
169 * \param source_p Pointer to allocated Client struct from which the message
170 * originally comes from. This can be a local or remote client.
171 * \param parc Integer holding the number of supplied arguments.
172 * \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
173 * pointers.
174 * \note Valid arguments for this command are:
175 * - parv[0] = command
176 * - parv[1] = channel name/list options
177 */
178 static int
179 m_list(struct Client *source_p, int parc, char *parv[])
180 {
181 do_list(source_p, parv[1]);
182 return 0;
183 }
184
185 static struct Message list_msgtab =
186 {
187 .cmd = "LIST",
188 .args_max = MAXPARA,
189 .handlers[UNREGISTERED_HANDLER] = m_unregistered,
190 .handlers[CLIENT_HANDLER] = m_list,
191 .handlers[SERVER_HANDLER] = m_ignore,
192 .handlers[ENCAP_HANDLER] = m_ignore,
193 .handlers[OPER_HANDLER] = m_list
194 };
195
196 static void
197 module_init(void)
198 {
199 mod_add_cmd(&list_msgtab);
200 isupport_add("ELIST", "CMNTU", -1);
201 isupport_add("SAFELIST", NULL, -1);
202 }
203
204 static void
205 module_exit(void)
206 {
207 mod_del_cmd(&list_msgtab);
208 isupport_delete("ELIST");
209 isupport_delete("SAFELIST");
210 }
211
212 struct module module_entry =
213 {
214 .version = "$Revision$",
215 .modinit = module_init,
216 .modexit = module_exit,
217 };

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