ircd-hybrid-8/modules/m_encap.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_encap.c: encapsulated command propagation and parsing
 *
 *  Copyright (C) 2003 by the past and present ircd coders, and others.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */

#include "stdinc.h"
#include "handlers.h"
#include "client.h"
#include "msg.h"
#include "parse.h"
#include "sprintf_irc.h"
#include "s_serv.h"
#include "send.h"
#include "modules.h"
#include "irc_string.h"


/*
 * ms_encap()
 *
 * inputs       - destination server, subcommand, parameters
 * output       - none
 * side effects - propagates subcommand to locally connected servers
 */
static void
ms_encap(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  char buffer[IRCD_BUFSIZE], *ptr = buffer;
  unsigned int cur_len = 0, len, i;
  int paramcount, mpara = 0;
  struct Message *mptr = NULL;
  MessageHandler handler = 0;

  for (i = 1; i < (unsigned int)parc - 1; i++)
  {
    len = strlen(parv[i]) + 1;

    if ((cur_len + len) >= sizeof(buffer))
      return;

    snprintf(ptr, sizeof(buffer) - cur_len, "%s ", parv[i]);
    cur_len += len;
    ptr += len;
  }

  len = strlen(parv[i]);

  /*
   * if the final parameter crosses our buffer size, should we bail, 
   * like the rest, or should we truncate?  ratbox seems to think truncate,
   * so i'll do that for now until i can talk to lee.  -bill
   */

  if (parc == 3)
    snprintf(ptr, sizeof(buffer) - cur_len, "%s", parv[2]);
  else
    snprintf(ptr, sizeof(buffer) - cur_len, ":%s", parv[parc - 1]);

  if ((cur_len + len) >= sizeof(buffer))
    buffer[sizeof(buffer) - 1] = '\0';

  sendto_match_servs(source_p, parv[1], CAP_ENCAP,
                     "ENCAP %s", buffer);

  if (!match(parv[1], me.name))
    return;

  if ((mptr = find_command(parv[2])) == NULL)
    return;

#ifdef NOT_USED_YET
  paramcount = mptr->parameters;
  mpara      = mptr->maxpara;
#endif
  mptr->bytes += strlen(buffer);

  /*
   * yes this is an ugly hack, but it is quicker than copying the entire array again
   * note: this hack wouldnt be needed if parv[0] were set to the command name, rather
   * than being derived from the prefix, as it should have been from the beginning.
   */
  ptr = parv[0];
  parv += 2;
  parc -= 2;
  parv[0] = ptr;

  if ((handler = mptr->handlers[ENCAP_HANDLER]))
    (*handler)(client_p, source_p, parc, parv);
}

static struct Message encap_msgtab = {
  "ENCAP", 0, 0, 3, MAXPARA, MFLG_SLOW, 0,
  {m_ignore, m_ignore, ms_encap, m_ignore, m_ignore, m_ignore}
};

static void
module_init(void)
{
  mod_add_cmd(&encap_msgtab);
  add_capability("ENCAP", CAP_ENCAP, 1);
}

static void
module_exit(void)
{
  mod_del_cmd(&encap_msgtab);
  delete_capability("ENCAP");
}

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
1	/*
2	* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	* m_encap.c: encapsulated command propagation and parsing
4	*
5	* Copyright (C) 2003 by the past and present ircd coders, and others.
6	*
7	* This program is free software; you can redistribute it and/or modify
8	* it under the terms of the GNU General Public License as published by
9	* the Free Software Foundation; either version 2 of the License, or
10	* (at your option) any later version.
11	*
12	* This program is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with this program; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20	* USA
21	*
22	* $Id$
23	*/
24
25	#include "stdinc.h"
26	#include "handlers.h"
27	#include "client.h"
28	#include "msg.h"
29	#include "parse.h"
30	#include "sprintf_irc.h"
31	#include "s_serv.h"
32	#include "send.h"
33	#include "modules.h"
34	#include "irc_string.h"
35
36
37	/*
38	* ms_encap()
39	*
40	* inputs - destination server, subcommand, parameters
41	* output - none
42	* side effects - propagates subcommand to locally connected servers
43	*/
44	static void
45	ms_encap(struct Client client_p, struct Client source_p,
46	int parc, char *parv[])
47	{
48	char buffer[IRCD_BUFSIZE], *ptr = buffer;
49	unsigned int cur_len = 0, len, i;
50	int paramcount, mpara = 0;
51	struct Message *mptr = NULL;
52	MessageHandler handler = 0;
53
54	for (i = 1; i < (unsigned int)parc - 1; i++)
55	{
56	len = strlen(parv[i]) + 1;
57
58	if ((cur_len + len) >= sizeof(buffer))
59	return;
60
61	snprintf(ptr, sizeof(buffer) - cur_len, "%s ", parv[i]);
62	cur_len += len;
63	ptr += len;
64	}
65
66	len = strlen(parv[i]);
67
68	/*
69	* if the final parameter crosses our buffer size, should we bail,
70	* like the rest, or should we truncate? ratbox seems to think truncate,
71	* so i'll do that for now until i can talk to lee. -bill
72	*/
73
74	if (parc == 3)
75	snprintf(ptr, sizeof(buffer) - cur_len, "%s", parv[2]);
76	else
77	snprintf(ptr, sizeof(buffer) - cur_len, ":%s", parv[parc - 1]);
78
79	if ((cur_len + len) >= sizeof(buffer))
80	buffer[sizeof(buffer) - 1] = '\0';
81
82	sendto_match_servs(source_p, parv[1], CAP_ENCAP,
83	"ENCAP %s", buffer);
84
85	if (!match(parv[1], me.name))
86	return;
87
88	if ((mptr = find_command(parv[2])) == NULL)
89	return;
90
91	#ifdef NOT_USED_YET
92	paramcount = mptr->parameters;
93	mpara = mptr->maxpara;
94	#endif
95	mptr->bytes += strlen(buffer);
96
97	/*
98	* yes this is an ugly hack, but it is quicker than copying the entire array again
99	* note: this hack wouldnt be needed if parv[0] were set to the command name, rather
100	* than being derived from the prefix, as it should have been from the beginning.
101	*/
102	ptr = parv[0];
103	parv += 2;
104	parc -= 2;
105	parv[0] = ptr;
106
107	if ((handler = mptr->handlers[ENCAP_HANDLER]))
108	(*handler)(client_p, source_p, parc, parv);
109	}
110
111	static struct Message encap_msgtab = {
112	"ENCAP", 0, 0, 3, MAXPARA, MFLG_SLOW, 0,
113	{m_ignore, m_ignore, ms_encap, m_ignore, m_ignore, m_ignore}
114	};
115
116	static void
117	module_init(void)
118	{
119	mod_add_cmd(&encap_msgtab);
120	add_capability("ENCAP", CAP_ENCAP, 1);
121	}
122
123	static void
124	module_exit(void)
125	{
126	mod_del_cmd(&encap_msgtab);
127	delete_capability("ENCAP");
128	}
129
130	struct module module_entry = {
131	.node = { NULL, NULL, NULL },
132	.name = NULL,
133	.version = "$Revision$",
134	.handle = NULL,
135	.modinit = module_init,
136	.modexit = module_exit,
137	.flags = 0
138	};
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