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root/svn/ircd-hybrid-8/modules/m_accept.c
Revision: 1178
Committed: Mon Aug 15 08:11:31 2011 UTC (12 years, 7 months ago) by michael
Content type: text/x-csrc
File size: 6090 byte(s)
Log Message:
- Cleanup and restore older parts of the irc-command parser.
  Gives back ability to specify maximum amount of parameters
  that are processed within a command.

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 *
4 * Copyright (C) 2002 by the past and present ircd coders, and others.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 * USA
20 */
21
22 /*! \file m_accept.c
23 * \brief Includes required functions for processing the ACCEPT command.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "handlers.h"
29 #include "client.h"
30 #include "irc_string.h"
31 #include "sprintf_irc.h"
32 #include "ircd.h"
33 #include "list.h"
34 #include "numeric.h"
35 #include "s_conf.h"
36 #include "s_serv.h"
37 #include "send.h"
38 #include "msg.h"
39 #include "parse.h"
40 #include "modules.h"
41
42 static void m_accept(struct Client *, struct Client *, int, char *[]);
43
44 struct Message accept_msgtab = {
45 "ACCEPT", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
46 { m_unregistered, m_accept, m_ignore, m_ignore, m_accept, m_ignore }
47 };
48
49 void
50 _modinit(void)
51 {
52 mod_add_cmd(&accept_msgtab);
53 }
54
55 void
56 _moddeinit(void)
57 {
58 mod_del_cmd(&accept_msgtab);
59 }
60
61 const char *_version = "$Revision$";
62
63
64 /*! \brief Creates and sends a list of nick!user\@host masks a Client
65 * has on its acceptlist.
66 *
67 * \param source_p The actual Client the list will be sent to.
68 */
69 static void
70 list_accepts(struct Client *source_p)
71 {
72 int len = 0;
73 char nicks[IRCD_BUFSIZE] = { '\0' };
74 char *t = nicks;
75 const dlink_node *ptr = NULL;
76
77 len = strlen(me.name) + strlen(source_p->name) + 12;
78
79 DLINK_FOREACH(ptr, source_p->localClient->acceptlist.head)
80 {
81 const struct split_nuh_item *accept_p = ptr->data;
82 size_t masklen = strlen(accept_p->nickptr) +
83 strlen(accept_p->userptr) +
84 strlen(accept_p->hostptr) + 2 /* !@ */ ;
85
86 if ((t - nicks) + masklen + len > IRCD_BUFSIZE)
87 {
88 *(t - 1) = '\0';
89 sendto_one(source_p, form_str(RPL_ACCEPTLIST),
90 me.name, source_p->name, nicks);
91 t = nicks;
92 }
93
94 t += ircsprintf(t, "%s!%s@%s ",
95 accept_p->nickptr,
96 accept_p->userptr, accept_p->hostptr);
97 }
98
99 if (nicks[0] != '\0')
100 {
101 *(t - 1) = '\0';
102 sendto_one(source_p, form_str(RPL_ACCEPTLIST),
103 me.name, source_p->name, nicks);
104 }
105
106 sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
107 me.name, source_p->name);
108 }
109
110 /*! \brief Allocates and adds a split_nuh_item holding a nick!user\@host
111 * mask to a Client's acceptlist.
112 *
113 * \param nuh A split_nuh_item already prepared with required masks.
114 * \param source_p The actual Client the new accept is added to.
115 */
116 static void
117 add_accept(const struct split_nuh_item *nuh, struct Client *source_p)
118 {
119 struct split_nuh_item *accept_p = MyMalloc(sizeof(*accept_p));
120
121 DupString(accept_p->nickptr, nuh->nickptr);
122 DupString(accept_p->userptr, nuh->userptr);
123 DupString(accept_p->hostptr, nuh->hostptr);
124
125 dlinkAdd(accept_p, &accept_p->node, &source_p->localClient->acceptlist);
126
127 list_accepts(source_p);
128 }
129
130 /*! \brief ACCEPT command handler
131 *
132 * \param client_p Pointer to allocated Client struct with physical connection
133 * to this server, i.e. with an open socket connected.
134 * \param source_p Pointer to allocated Client struct from which the message
135 * originally comes from. This can be a local or remote client.
136 * \param parc Integer holding the number of supplied arguments.
137 * \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
138 * pointers.
139 * \note Valid arguments for this command are:
140 * - parv[0] = sender prefix
141 * - parv[1] = list of masks to be accepted or removed (optional)
142 */
143 static void
144 m_accept(struct Client *client_p, struct Client *source_p,
145 int parc, char *parv[])
146 {
147 char *mask = NULL;
148 char *p = NULL;
149 char nick[NICKLEN + 1];
150 char user[USERLEN + 1];
151 char host[HOSTLEN + 1];
152 struct split_nuh_item nuh;
153 struct split_nuh_item *accept_p = NULL;
154
155 if (EmptyString(parv[1]) || !irccmp(parv[1], "*"))
156 {
157 list_accepts(source_p);
158 return;
159 }
160
161 for (mask = strtoken(&p, parv[1], ","); mask != NULL;
162 mask = strtoken(&p, NULL, ","))
163 {
164 if (*mask == '-' && *++mask != '\0')
165 {
166 nuh.nuhmask = mask;
167 nuh.nickptr = nick;
168 nuh.userptr = user;
169 nuh.hostptr = host;
170
171 nuh.nicksize = sizeof(nick);
172 nuh.usersize = sizeof(user);
173 nuh.hostsize = sizeof(host);
174
175 split_nuh(&nuh);
176
177 if ((accept_p = find_accept(nick, user, host, source_p, 0)) == NULL)
178 {
179 sendto_one(source_p, form_str(ERR_ACCEPTNOT),
180 me.name, source_p->name, nick, user, host);
181 continue;
182 }
183
184 del_accept(accept_p, source_p);
185 }
186 else if (*mask != '\0')
187 {
188 if (dlink_list_length(&source_p->localClient->acceptlist) >=
189 ConfigFileEntry.max_accept)
190 {
191 sendto_one(source_p, form_str(ERR_ACCEPTFULL),
192 me.name, source_p->name);
193 return;
194 }
195
196 nuh.nuhmask = mask;
197 nuh.nickptr = nick;
198 nuh.userptr = user;
199 nuh.hostptr = host;
200
201 nuh.nicksize = sizeof(nick);
202 nuh.usersize = sizeof(user);
203 nuh.hostsize = sizeof(host);
204
205 split_nuh(&nuh);
206
207 if ((accept_p = find_accept(nick, user, host, source_p, 0)) != NULL)
208 {
209 sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
210 me.name, source_p->name, nick, user, host);
211 continue;
212 }
213
214 add_accept(&nuh, source_p);
215 }
216 }
217 }

Properties

Name Value
svn:eol-style native
svn:keywords Id Revision