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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 2000-2014 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
/*! \file m_accept.c
* \brief Includes required functions for processing the ACCEPT command.
* \version $Id$
*/
#include "stdinc.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "list.h"
#include "numeric.h"
#include "conf.h"
#include "s_serv.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
#include "memory.h"
/*! \brief Creates and sends a list of nick!user\@host masks a Client
* has on its acceptlist.
*
* \param source_p The actual Client the list will be sent to.
*/
static void
list_accepts(struct Client *source_p)
{
int len = 0;
char nicks[IRCD_BUFSIZE] = { '\0' };
char *t = nicks;
const dlink_node *ptr = NULL;
len = strlen(me.name) + strlen(source_p->name) + 12;
DLINK_FOREACH(ptr, source_p->localClient->acceptlist.head)
{
const struct split_nuh_item *accept_p = ptr->data;
size_t masklen = strlen(accept_p->nickptr) +
strlen(accept_p->userptr) +
strlen(accept_p->hostptr) + 2 /* !@ */ ;
if ((t - nicks) + masklen + len > IRCD_BUFSIZE)
{
*(t - 1) = '\0';
sendto_one(source_p, form_str(RPL_ACCEPTLIST),
me.name, source_p->name, nicks);
t = nicks;
}
t += sprintf(t, "%s!%s@%s ",
accept_p->nickptr,
accept_p->userptr, accept_p->hostptr);
}
if (nicks[0] != '\0')
{
*(t - 1) = '\0';
sendto_one(source_p, form_str(RPL_ACCEPTLIST),
me.name, source_p->name, nicks);
}
sendto_one(source_p, form_str(RPL_ENDOFACCEPT),
me.name, source_p->name);
}
/*! \brief Allocates and adds a split_nuh_item holding a nick!user\@host
* mask to a Client's acceptlist.
*
* \param nuh A split_nuh_item already prepared with required masks.
* \param source_p The actual Client the new accept is added to.
*/
static void
add_accept(const struct split_nuh_item *nuh, struct Client *source_p)
{
struct split_nuh_item *accept_p = MyMalloc(sizeof(*accept_p));
accept_p->nickptr = xstrdup(nuh->nickptr);
accept_p->userptr = xstrdup(nuh->userptr);
accept_p->hostptr = xstrdup(nuh->hostptr);
dlinkAdd(accept_p, &accept_p->node, &source_p->localClient->acceptlist);
list_accepts(source_p);
}
/*! \brief ACCEPT command handler
*
* \param client_p Pointer to allocated Client struct with physical connection
* to this server, i.e. with an open socket connected.
* \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] = sender prefix
* - parv[1] = list of masks to be accepted or removed (optional)
*/
static int
m_accept(struct Client *client_p, struct Client *source_p,
int parc, char *parv[])
{
char *mask = NULL;
char *p = NULL;
char nick[NICKLEN + 1];
char user[USERLEN + 1];
char host[HOSTLEN + 1];
struct split_nuh_item nuh;
struct split_nuh_item *accept_p = NULL;
if (EmptyString(parv[1]) || !irccmp(parv[1], "*"))
{
list_accepts(source_p);
return 0;
}
for (mask = strtoken(&p, parv[1], ","); mask != NULL;
mask = strtoken(&p, NULL, ","))
{
if (*mask == '-' && *++mask != '\0')
{
nuh.nuhmask = mask;
nuh.nickptr = nick;
nuh.userptr = user;
nuh.hostptr = host;
nuh.nicksize = sizeof(nick);
nuh.usersize = sizeof(user);
nuh.hostsize = sizeof(host);
split_nuh(&nuh);
if ((accept_p = find_accept(nick, user, host, source_p, irccmp)) == NULL)
{
sendto_one(source_p, form_str(ERR_ACCEPTNOT),
me.name, source_p->name, nick, user, host);
continue;
}
del_accept(accept_p, source_p);
}
else if (*mask != '\0')
{
if (dlink_list_length(&source_p->localClient->acceptlist) >=
ConfigFileEntry.max_accept)
{
sendto_one(source_p, form_str(ERR_ACCEPTFULL),
me.name, source_p->name);
return 0;
}
nuh.nuhmask = mask;
nuh.nickptr = nick;
nuh.userptr = user;
nuh.hostptr = host;
nuh.nicksize = sizeof(nick);
nuh.usersize = sizeof(user);
nuh.hostsize = sizeof(host);
split_nuh(&nuh);
if ((accept_p = find_accept(nick, user, host, source_p, irccmp)) != NULL)
{
sendto_one(source_p, form_str(ERR_ACCEPTEXIST),
me.name, source_p->name, nick, user, host);
continue;
}
add_accept(&nuh, source_p);
}
}
return 0;
}
static struct Message accept_msgtab =
{
"ACCEPT", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
{ m_unregistered, m_accept, m_ignore, m_ignore, m_accept, m_ignore }
};
static void
module_init(void)
{
mod_add_cmd(&accept_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&accept_msgtab);
}
struct module module_entry =
{
.node = { NULL, NULL, NULL },
.name = NULL,
.version = "$Revision$",
.handle = NULL,
.modinit = module_init,
.modexit = module_exit,
.flags = 0
};
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