trunk/src/conf_resv.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  resv.c: Functions to reserve(jupe) a nick/channel.
 *
 *  Copyright (C) 2001-2002 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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "ircd.h"
#include "send.h"
#include "client.h"   
#include "memory.h"
#include "numeric.h"
#include "resv.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd_defs.h"
#include "s_misc.h"
#include "conf.h"
#include "conf_db.h"
#include "channel.h"
#include "hostmask.h"

dlink_list resv_channel_list = { NULL, NULL, 0 };


/* create_resv()
 *
 * inputs       - name of nick to create resv for
 *              - reason for resv
 *              - 1 if from ircd.conf, 0 if from elsewhere
 * output       - pointer to struct ResvNick
 * side effects -
 */
struct MaskItem *
create_resv(const char *name, const char *reason, const dlink_list *list)
{
  dlink_node *ptr = NULL;
  struct MaskItem *conf = NULL;
  enum maskitem_type type;

  if (name == NULL || reason == NULL)
    return NULL;

  if (IsChanPrefix(*name))
    type = CONF_CRESV;
  else
    type = CONF_NRESV;

  if (find_exact_name_conf(type, NULL, name, NULL, NULL))
    return NULL;

  conf = conf_make(type);
  conf->name = xstrdup(name);
  conf->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));

  if (list)
  {
    DLINK_FOREACH(ptr, list->head)
    {
      char nick[NICKLEN + 1];
      char user[USERLEN + 1];
      char host[HOSTLEN + 1];
      struct split_nuh_item nuh;
      struct exempt *exptr = NULL;
      char *s = ptr->data;

      if (strlen(s) == 2 && IsAlpha(*(s + 1) && IsAlpha(*(s + 2))))
      {
#ifdef HAVE_LIBGEOIP
        exptr = MyMalloc(sizeof(*exptr));
        exptr->name = xstrdup(s);
        exptr->coid = GeoIP_id_by_code(s);
        dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
#endif
      }
      else
      {
        nuh.nuhmask  = s;
        nuh.nickptr  = nick;
        nuh.userptr  = user;
        nuh.hostptr  = host;

        nuh.nicksize = sizeof(nick);
        nuh.usersize = sizeof(user);
        nuh.hostsize = sizeof(host);

        split_nuh(&nuh);

        exptr = MyMalloc(sizeof(*exptr));
        exptr->name = xstrdup(nick);
        exptr->user = xstrdup(user);
        exptr->host = xstrdup(host);
        exptr->type = parse_netmask(host, &exptr->addr, &exptr->bits);
        dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
      }
    }
  }

  return conf;
}

int
resv_find_exempt(const struct Client *who, const struct MaskItem *conf)
{
  const dlink_node *ptr = NULL;

  DLINK_FOREACH(ptr, conf->exempt_list.head)
  {
    const struct exempt *exptr = ptr->data;

    if (exptr->coid)
    {
      if (exptr->coid == who->localClient->country_id)
        return 1;
    }
    else if (!match(exptr->name, who->name) && !match(exptr->user, who->username))
    {
      switch (exptr->type)
      {
        case HM_HOST:
          if (!match(exptr->host, who->host) || !match(exptr->host, who->sockhost))
            return 1;
          break;
        case HM_IPV4:
          if (who->localClient->aftype == AF_INET)
            if (match_ipv4(&who->localClient->ip, &exptr->addr, exptr->bits))
              return 1;
          break;
#ifdef IPV6
        case HM_IPV6:
          if (who->localClient->aftype == AF_INET6)
            if (match_ipv6(&who->localClient->ip, &exptr->addr, exptr->bits))
              return 1;
          break;
#endif
        default:
          assert(0);
      }
    }
  }

  return 0;
}

/* match_find_resv()
 *
 * inputs       - pointer to name
 * output       - pointer to a struct ResvChannel
 * side effects - Finds a reserved channel whose name matches 'name',
 *                if can't find one returns NULL.
 */
struct MaskItem *
match_find_resv(const char *name)
{
  dlink_node *ptr = NULL;

  if (EmptyString(name))
    return NULL;

  DLINK_FOREACH(ptr, resv_channel_list.head)
  {
    struct MaskItem *conf = ptr->data;

    if (!match(conf->name, name))
      return conf;
  }

  return NULL;
}

/* report_resv()
 *
 * inputs       - pointer to client pointer to report to.
 * output       - NONE
 * side effects - report all resvs to client.
 */
void
report_resv(struct Client *source_p)
{
  dlink_node *ptr = NULL;
  struct MaskItem *conf = NULL;

  DLINK_FOREACH(ptr, resv_channel_list.head)
  {
    conf = ptr->data;
    sendto_one(source_p, form_str(RPL_STATSQLINE),
               me.name, source_p->name,
               conf->until ? 'q' : 'Q', conf->count,
               conf->name, conf->reason);
  }

  DLINK_FOREACH(ptr, nresv_items.head)
  {
    conf = ptr->data;
    sendto_one(source_p, form_str(RPL_STATSQLINE),
               me.name, source_p->name,
               conf->until ? 'q' : 'Q', conf->count,
               conf->name, conf->reason);
  }
}

/* valid_wild_card_simple()
 *
 * inputs       - data to check for sufficient non-wildcard characters
 * outputs      - 1 if valid, else 0
 * side effects - none
 */
int
valid_wild_card_simple(const char *data)
{
  const unsigned char *p = (const unsigned char *)data;
  unsigned char tmpch = '\0';
  int nonwild = 0;

  while ((tmpch = *p++))
  {
    if (tmpch == '\\')
    {
      ++p;
      if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
        return 1;
    }
    else if (!IsMWildChar(tmpch))
    {
      if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
        return 1;
    }
  }

  return 0;
}
Revision:	1919
Committed:	Tue Apr 30 13:59:53 2013 UTC (12 years, 3 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/trunk/src/resv.c*
File size:	6060 byte(s)
Log Message:	- Made valid_wild_card_simple() easier to read
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* resv.c: Functions to reserve(jupe) a nick/channel.
4			*
5			* Copyright (C) 2001-2002 Hybrid Development Team
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	michael	1011	#include "list.h"
27	adx	30	#include "ircd.h"
28			#include "send.h"
29			#include "client.h"
30			#include "memory.h"
31			#include "numeric.h"
32			#include "resv.h"
33			#include "hash.h"
34			#include "irc_string.h"
35			#include "ircd_defs.h"
36	michael	1646	#include "s_misc.h"
37	michael	1309	#include "conf.h"
38	michael	1622	#include "conf_db.h"
39	michael	1858	#include "channel.h"
40			#include "hostmask.h"
41	adx	30
42			dlink_list resv_channel_list = { NULL, NULL, 0 };
43
44
45	michael	1858	/* create_resv()
46	adx	30	*
47	michael	1858	* inputs - name of nick to create resv for
48	adx	30	* - reason for resv
49	michael	1858	* - 1 if from ircd.conf, 0 if from elsewhere
50			* output - pointer to struct ResvNick
51	adx	30	* side effects -
52			*/
53	michael	1632	struct MaskItem *
54	michael	1858	create_resv(const char name, const char reason, const dlink_list *list)
55	adx	30	{
56	michael	1860	dlink_node *ptr = NULL;
57	michael	1632	struct MaskItem *conf = NULL;
58	michael	1858	enum maskitem_type type;
59	adx	30
60			if (name == NULL \|\| reason == NULL)
61			return NULL;
62
63	michael	1858	if (IsChanPrefix(*name))
64			type = CONF_CRESV;
65			else
66			type = CONF_NRESV;
67
68			if (find_exact_name_conf(type, NULL, name, NULL, NULL))
69	adx	30	return NULL;
70
71	michael	1858	conf = conf_make(type);
72	michael	1646	conf->name = xstrdup(name);
73			conf->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));
74	adx	30
75	michael	1858	if (list)
76			{
77	michael	1860	DLINK_FOREACH(ptr, list->head)
78	michael	1858	{
79	michael	1860	char nick[NICKLEN + 1];
80			char user[USERLEN + 1];
81			char host[HOSTLEN + 1];
82			struct split_nuh_item nuh;
83			struct exempt *exptr = NULL;
84			char *s = ptr->data;
85	michael	1858
86	michael	1860	if (strlen(s) == 2 && IsAlpha((s + 1) && IsAlpha((s + 2))))
87	michael	1858	{
88	michael	1872	#ifdef HAVE_LIBGEOIP
89	michael	1860	exptr = MyMalloc(sizeof(*exptr));
90			exptr->name = xstrdup(s);
91			exptr->coid = GeoIP_id_by_code(s);
92			dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
93	michael	1872	#endif
94	michael	1860	}
95			else
96			{
97			nuh.nuhmask = s;
98	michael	1858	nuh.nickptr = nick;
99			nuh.userptr = user;
100			nuh.hostptr = host;
101
102	michael	1859	nuh.nicksize = sizeof(nick);
103	michael	1858	nuh.usersize = sizeof(user);
104			nuh.hostsize = sizeof(host);
105
106			split_nuh(&nuh);
107
108			exptr = MyMalloc(sizeof(*exptr));
109	michael	1860	exptr->name = xstrdup(nick);
110	michael	1858	exptr->user = xstrdup(user);
111			exptr->host = xstrdup(host);
112			exptr->type = parse_netmask(host, &exptr->addr, &exptr->bits);
113			dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
114			}
115			}
116			}
117
118	adx	30	return conf;
119			}
120
121	michael	1858	int
122			resv_find_exempt(const struct Client who, const struct MaskItem conf)
123	adx	30	{
124	michael	1858	const dlink_node *ptr = NULL;
125	adx	30
126	michael	1858	DLINK_FOREACH(ptr, conf->exempt_list.head)
127			{
128			const struct exempt *exptr = ptr->data;
129	adx	30
130	michael	1858	if (exptr->coid)
131			{
132			if (exptr->coid == who->localClient->country_id)
133			return 1;
134			}
135			else if (!match(exptr->name, who->name) && !match(exptr->user, who->username))
136			{
137			switch (exptr->type)
138			{
139			case HM_HOST:
140			if (!match(exptr->host, who->host) \|\| !match(exptr->host, who->sockhost))
141			return 1;
142			break;
143			case HM_IPV4:
144			if (who->localClient->aftype == AF_INET)
145			if (match_ipv4(&who->localClient->ip, &exptr->addr, exptr->bits))
146			return 1;
147			break;
148			#ifdef IPV6
149			case HM_IPV6:
150			if (who->localClient->aftype == AF_INET6)
151			if (match_ipv6(&who->localClient->ip, &exptr->addr, exptr->bits))
152			return 1;
153			break;
154			#endif
155			default:
156			assert(0);
157			}
158			}
159			}
160	adx	30
161	michael	1858	return 0;
162	adx	30	}
163
164			/* match_find_resv()
165			*
166			* inputs - pointer to name
167			* output - pointer to a struct ResvChannel
168			* side effects - Finds a reserved channel whose name matches 'name',
169			* if can't find one returns NULL.
170			*/
171	michael	1632	struct MaskItem *
172	adx	30	match_find_resv(const char *name)
173			{
174			dlink_node *ptr = NULL;
175
176			if (EmptyString(name))
177			return NULL;
178
179			DLINK_FOREACH(ptr, resv_channel_list.head)
180			{
181	michael	1632	struct MaskItem *conf = ptr->data;
182	adx	30
183	michael	1825	if (!match(conf->name, name))
184	michael	1632	return conf;
185	adx	30	}
186
187			return NULL;
188			}
189
190			/* report_resv()
191			*
192			* inputs - pointer to client pointer to report to.
193			* output - NONE
194			* side effects - report all resvs to client.
195			*/
196			void
197			report_resv(struct Client *source_p)
198			{
199	michael	1632	dlink_node *ptr = NULL;
200			struct MaskItem *conf = NULL;
201	adx	30
202			DLINK_FOREACH(ptr, resv_channel_list.head)
203			{
204	michael	1632	conf = ptr->data;
205	michael	1834	sendto_one(source_p, form_str(RPL_STATSQLINE),
206	adx	30	me.name, source_p->name,
207	michael	1687	conf->until ? 'q' : 'Q', conf->count,
208	michael	1632	conf->name, conf->reason);
209	adx	30	}
210
211			DLINK_FOREACH(ptr, nresv_items.head)
212			{
213	michael	1649	conf = ptr->data;
214	michael	1834	sendto_one(source_p, form_str(RPL_STATSQLINE),
215	adx	30	me.name, source_p->name,
216	michael	1687	conf->until ? 'q' : 'Q', conf->count,
217	michael	1632	conf->name, conf->reason);
218	adx	30	}
219			}
220
221			/* valid_wild_card_simple()
222			*
223			* inputs - data to check for sufficient non-wildcard characters
224			* outputs - 1 if valid, else 0
225			* side effects - none
226			*/
227			int
228			valid_wild_card_simple(const char *data)
229			{
230			const unsigned char p = (const unsigned char )data;
231	michael	1919	unsigned char tmpch = '\0';
232	adx	30	int nonwild = 0;
233
234	michael	1919	while ((tmpch = *p++))
235	adx	30	{
236	michael	1919	if (tmpch == '\\')
237			{
238			++p;
239			if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
240	adx	30	return 1;
241	michael	1919	}
242			else if (!IsMWildChar(tmpch))
243			{
244			if (++nonwild >= ConfigFileEntry.min_nonwildcard_simple)
245			return 1;
246			}
247	adx	30	}
248
249			return 0;
250			}