trunk/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
};
Revision:	1233
Committed:	Thu Sep 22 20:53:07 2011 UTC (14 years, 10 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/modules/m_encap.c*
File size:	3621 byte(s)
Log Message:	- replace bunch of ircsprintf with snprintf
#	User	Rev	Content
1	adx	30	/*
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	knight	31	* $Id$
23	adx	30	*/
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	michael	1233	snprintf(ptr, sizeof(buffer) - cur_len, "%s ", parv[i]);
62	adx	30	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	michael	1233	snprintf(ptr, sizeof(buffer) - cur_len, "%s", parv[2]);
76	adx	30	else
77	michael	1233	snprintf(ptr, sizeof(buffer) - cur_len, ":%s", parv[parc - 1]);
78	adx	30
79			if ((cur_len + len) >= sizeof(buffer))
80	michael	1233	buffer[sizeof(buffer) - 1] = '\0';
81	adx	30
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	michael	1178	#ifdef NOT_USED_YET
92	adx	30	paramcount = mptr->parameters;
93			mpara = mptr->maxpara;
94	michael	1178	#endif
95	adx	30	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	michael	1233	if ((handler = mptr->handlers[ENCAP_HANDLER]))
108			(*handler)(client_p, source_p, parc, parv);
109	adx	30	}
110	michael	1230
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			};