trunk/src/server_capab.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2018 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:	8279
Committed:	Tue Feb 20 19:30:13 2018 UTC (8 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	3515 byte(s)
Log Message:	- Update copyright years
#	User	Rev	Content
1	michael	8170	/*
2			* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3			*
4	michael	8279	* Copyright (c) 1997-2018 ircd-hybrid development team
5	michael	8170	*
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	michael	8172	* \version $Id$
25	michael	8170	*/
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	michael	8214	capab_add("RHOST", CAPAB_RHOST);
54	michael	8170	}
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			}