trunk/src/server_capab.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2017 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file server_capab.c
 * \brief Server CAPAB related functions.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "irc_string.h"
#include "ircd_defs.h"
#include "server_capab.h"
#include "memory.h"


static dlink_list capab_list;  /* List of capabilities supported by this server */


/* capab_init()
 *
 * inputs       - none
 * output       - none
 */
void
capab_init(void)
{
  capab_add("QS", CAPAB_QS);
  capab_add("EOB", CAPAB_EOB);
  capab_add("CLUSTER", CAPAB_CLUSTER);
  capab_add("SVS", CAPAB_SVS);
  capab_add("CHW", CAPAB_CHW);
  capab_add("HOPS", CAPAB_HOPS);
  capab_add("RHOST", CAPAB_RHOST);
}

/* capab_add()
 *
 * inputs       - string name of CAPAB
 *              - int flag of capability
 * output       - NONE
 * side effects - Adds given capability name and bit mask to
 *                current supported capabilities. This allows
 *                modules to dynamically add or subtract their capability.
 */
void
capab_add(const char *name, unsigned int flag)
{
  struct Capability *cap = xcalloc(sizeof(*cap));

  cap->name = xstrdup(name);
  cap->cap = flag;
  dlinkAdd(cap, &cap->node, &capab_list);
}

/* capab_del()
 *
 * inputs       - string name of CAPAB
 * output       - NONE
 * side effects - delete given capability from ones known.
 */
void
capab_del(const char *name)
{
  dlink_node *node, *node_next;

  DLINK_FOREACH_SAFE(node, node_next, capab_list.head)
  {
    struct Capability *cap = node->data;

    if (!irccmp(cap->name, name))
    {
      dlinkDelete(node, &capab_list);
      xfree(cap->name);
      xfree(cap);
    }
  }
}

/*
 * capab_find()
 *
 * inputs       - string name of capab to find
 * output       - 0 if not found CAPAB otherwise
 * side effects - none
 */
unsigned int
capab_find(const char *name)
{
  dlink_node *node;

  DLINK_FOREACH(node, capab_list.head)
  {
    const struct Capability *cap = node->data;

    if (!irccmp(cap->name, name))
      return cap->cap;
  }

  return 0;
}

/*
 * capab_get() - show current server capabilities
 *
 * inputs       - pointer to a struct Client
 * output       - pointer to static string
 * side effects - build up string representing capabilities of server listed
 */
const char *
capab_get(const void *ptr)
{
  static char buf[IRCD_BUFSIZE] = "";
  dlink_node *node;

  buf[0] = '\0';

  DLINK_FOREACH(node, capab_list.head)
  {
    const struct Capability *cap = node->data;

    if (ptr && !IsCapable(((const struct Client *)ptr), cap->cap))
      continue;

    strlcat(buf, cap->name, sizeof(buf));

    if (node->next)
      strlcat(buf, " ", sizeof(buf));
  }

  return buf;
}
Revision:	8214
Committed:	Sun Apr 16 11:44:44 2017 UTC (8 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	3515 byte(s)
Log Message:	- Store real host information in Client.realhost and extend the UID message to send the actual host. This allows operators to see the real host of a client in /whois and /whowas.
#	Content
1	/*
2	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	*
4	* Copyright (c) 1997-2017 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 server_capab.c
23	* \brief Server CAPAB related functions.
24	* \version $Id$
25	*/
26
27	#include "stdinc.h"
28	#include "list.h"
29	#include "client.h"
30	#include "irc_string.h"
31	#include "ircd_defs.h"
32	#include "server_capab.h"
33	#include "memory.h"
34
35
36	static dlink_list capab_list; /* List of capabilities supported by this server */
37
38
39	/* capab_init()
40	*
41	* inputs - none
42	* output - none
43	*/
44	void
45	capab_init(void)
46	{
47	capab_add("QS", CAPAB_QS);
48	capab_add("EOB", CAPAB_EOB);
49	capab_add("CLUSTER", CAPAB_CLUSTER);
50	capab_add("SVS", CAPAB_SVS);
51	capab_add("CHW", CAPAB_CHW);
52	capab_add("HOPS", CAPAB_HOPS);
53	capab_add("RHOST", CAPAB_RHOST);
54	}
55
56	/* capab_add()
57	*
58	* inputs - string name of CAPAB
59	* - int flag of capability
60	* output - NONE
61	* side effects - Adds given capability name and bit mask to
62	* current supported capabilities. This allows
63	* modules to dynamically add or subtract their capability.
64	*/
65	void
66	capab_add(const char *name, unsigned int flag)
67	{
68	struct Capability cap = xcalloc(sizeof(cap));
69
70	cap->name = xstrdup(name);
71	cap->cap = flag;
72	dlinkAdd(cap, &cap->node, &capab_list);
73	}
74
75	/* capab_del()
76	*
77	* inputs - string name of CAPAB
78	* output - NONE
79	* side effects - delete given capability from ones known.
80	*/
81	void
82	capab_del(const char *name)
83	{
84	dlink_node node, node_next;
85
86	DLINK_FOREACH_SAFE(node, node_next, capab_list.head)
87	{
88	struct Capability *cap = node->data;
89
90	if (!irccmp(cap->name, name))
91	{
92	dlinkDelete(node, &capab_list);
93	xfree(cap->name);
94	xfree(cap);
95	}
96	}
97	}
98
99	/*
100	* capab_find()
101	*
102	* inputs - string name of capab to find
103	* output - 0 if not found CAPAB otherwise
104	* side effects - none
105	*/
106	unsigned int
107	capab_find(const char *name)
108	{
109	dlink_node *node;
110
111	DLINK_FOREACH(node, capab_list.head)
112	{
113	const struct Capability *cap = node->data;
114
115	if (!irccmp(cap->name, name))
116	return cap->cap;
117	}
118
119	return 0;
120	}
121
122	/*
123	* capab_get() - show current server capabilities
124	*
125	* inputs - pointer to a struct Client
126	* output - pointer to static string
127	* side effects - build up string representing capabilities of server listed
128	*/
129	const char *
130	capab_get(const void *ptr)
131	{
132	static char buf[IRCD_BUFSIZE] = "";
133	dlink_node *node;
134
135	buf[0] = '\0';
136
137	DLINK_FOREACH(node, capab_list.head)
138	{
139	const struct Capability *cap = node->data;
140
141	if (ptr && !IsCapable(((const struct Client *)ptr), cap->cap))
142	continue;
143
144	strlcat(buf, cap->name, sizeof(buf));
145
146	if (node->next)
147	strlcat(buf, " ", sizeof(buf));
148	}
149
150	return buf;
151	}