8.2.x/modules/m_ison.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 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 m_ison.c
 * \brief Includes required functions for processing the ISON command.
 * \version $Id$
 */

#include "stdinc.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "parse.h"
#include "modules.h"


/*! \brief ISON command handler
 *
 * \param source_p Pointer to allocated Client struct from which the message
 *                 originally comes from.  This can be a local or remote client.
 * \param parc     Integer holding the number of supplied arguments.
 * \param parv     Argument vector where parv[0] .. parv[parc-1] are non-NULL
 *                 pointers.
 * \note Valid arguments for this command are:
 *      - parv[0] = command
 *      - parv[1] = space-separated list of nicknames
 */
static int
m_ison(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  char *nick;
  char *p = NULL;
  char *current_insert_point = NULL;
  char buf[IRCD_BUFSIZE];
  int len;
  int done = 0;

  len = snprintf(buf, sizeof(buf), numeric_form(RPL_ISON), me.name, source_p->name);
  current_insert_point = buf + len;

  /*
   * rfc1459 is ambigious about how to handle ISON
   * this should handle both interpretations.
   */
  for (int i = 1; i < parc; ++i)
  {
    for (nick = strtoken(&p, parv[i], " "); nick;
         nick = strtoken(&p,    NULL, " "))
    {
      if ((target_p = find_person(source_p, nick)))
      {
        len = strlen(target_p->name);

        if ((current_insert_point + (len + 5)) < (buf + sizeof(buf)))
        {
          strlcpy(current_insert_point, target_p->name, len);
          current_insert_point += len;
          *current_insert_point++ = ' ';
        }
        else
        {
          done = 1;
          break;
        }
      }
    }

    if (done)
      break;
  }

  /*
   *  current_insert_point--;
   *  Do NOT take out the trailing space, it breaks ircII
   *  --Rodder
   */
  *current_insert_point  = '\0';

  sendto_one(source_p, "%s", buf);
  return 0;
}

static struct Message ison_msgtab =
{
  "ISON", NULL, 0, 0, 2, 1, MFLG_SLOW, 0,
  { m_unregistered, m_ison, m_ignore, m_ignore, m_ison, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&ison_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&ison_msgtab);
}

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	4564
Committed:	Sun Aug 24 10:24:47 2014 UTC (9 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	3374 byte(s)
Log Message:	- Update GPL 2 license headers
#	Content
1	/*
2	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	*
4	* Copyright (c) 1997-2014 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_ison.c
23	* \brief Includes required functions for processing the ISON command.
24	* \version $Id$
25	*/
26
27	#include "stdinc.h"
28	#include "client.h"
29	#include "irc_string.h"
30	#include "ircd.h"
31	#include "numeric.h"
32	#include "send.h"
33	#include "parse.h"
34	#include "modules.h"
35
36
37	/*! \brief ISON command handler
38	*
39	* \param source_p Pointer to allocated Client struct from which the message
40	* originally comes from. This can be a local or remote client.
41	* \param parc Integer holding the number of supplied arguments.
42	* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
43	* pointers.
44	* \note Valid arguments for this command are:
45	* - parv[0] = command
46	* - parv[1] = space-separated list of nicknames
47	*/
48	static int
49	m_ison(struct Client source_p, int parc, char parv[])
50	{
51	struct Client *target_p = NULL;
52	char *nick;
53	char *p = NULL;
54	char *current_insert_point = NULL;
55	char buf[IRCD_BUFSIZE];
56	int len;
57	int done = 0;
58
59	len = snprintf(buf, sizeof(buf), numeric_form(RPL_ISON), me.name, source_p->name);
60	current_insert_point = buf + len;
61
62	/*
63	* rfc1459 is ambigious about how to handle ISON
64	* this should handle both interpretations.
65	*/
66	for (int i = 1; i < parc; ++i)
67	{
68	for (nick = strtoken(&p, parv[i], " "); nick;
69	nick = strtoken(&p, NULL, " "))
70	{
71	if ((target_p = find_person(source_p, nick)))
72	{
73	len = strlen(target_p->name);
74
75	if ((current_insert_point + (len + 5)) < (buf + sizeof(buf)))
76	{
77	strlcpy(current_insert_point, target_p->name, len);
78	current_insert_point += len;
79	*current_insert_point++ = ' ';
80	}
81	else
82	{
83	done = 1;
84	break;
85	}
86	}
87	}
88
89	if (done)
90	break;
91	}
92
93	/*
94	* current_insert_point--;
95	* Do NOT take out the trailing space, it breaks ircII
96	* --Rodder
97	*/
98	*current_insert_point = '\0';
99
100	sendto_one(source_p, "%s", buf);
101	return 0;
102	}
103
104	static struct Message ison_msgtab =
105	{
106	"ISON", NULL, 0, 0, 2, 1, MFLG_SLOW, 0,
107	{ m_unregistered, m_ison, m_ignore, m_ignore, m_ison, m_ignore }
108	};
109
110	static void
111	module_init(void)
112	{
113	mod_add_cmd(&ison_msgtab);
114	}
115
116	static void
117	module_exit(void)
118	{
119	mod_del_cmd(&ison_msgtab);
120	}
121
122	struct module module_entry =
123	{
124	.node = { NULL, NULL, NULL },
125	.name = NULL,
126	.version = "$Revision$",
127	.handle = NULL,
128	.modinit = module_init,
129	.modexit = module_exit,
130	.flags = 0
131	};