trunk/modules/m_who.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2016 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_who.c
 * \brief Includes required functions for processing the WHO command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "channel.h"
#include "channel_mode.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "server.h"
#include "send.h"
#include "irc_string.h"
#include "conf.h"
#include "parse.h"
#include "modules.h"


enum { WHO_MAX_REPLIES = 500 };


/* do_who()
 *
 * inputs       - pointer to client requesting who
 *              - pointer to client to do who on
 *              - The reported name
 *              - channel flags
 * output       - NONE
 * side effects - do a who on given person
 */
static void
do_who(struct Client *source_p, const struct Client *target_p,
       const char *name, const char *op_flags)
{
  char status[IRCD_BUFSIZE] = "";

  if (HasUMode(source_p, UMODE_OPER))
    snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H',
             HasUMode(target_p, UMODE_REGISTERED) ? "r" : "",
             HasUMode(target_p, UMODE_OPER) ? "*" : "", op_flags);
  else
    snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H',
             HasUMode(target_p, UMODE_REGISTERED) ? "r" : "",
             HasUMode(target_p, UMODE_OPER) &&
             !HasUMode(target_p, UMODE_HIDDEN) ? "*" : "", op_flags);

  if (ConfigServerHide.hide_servers || IsHidden(target_p->servptr))
    sendto_one_numeric(source_p, &me, RPL_WHOREPLY,
               (name) ? (name) : "*",
               target_p->username, target_p->host,
               HasUMode(source_p, UMODE_OPER) ? target_p->servptr->name : "*",
               target_p->name, status,
               HasUMode(source_p, UMODE_OPER) ? target_p->hopcount : 0, target_p->info);
  else
    sendto_one_numeric(source_p, &me, RPL_WHOREPLY,
               (name) ? (name) : "*", target_p->username,
               target_p->host, target_p->servptr->name, target_p->name,
               status, target_p->hopcount, target_p->info);
}

/*!
 * \param source_p Pointer to client requesting who
 * \param target_p Pointer to client to do who on
 * \param mask Mask to match
 * \return 1 if mask matches, 0 otherwise
 */
static int
who_matches(struct Client *source_p, struct Client *target_p, const char *mask)
{
  if (!mask)
    return 1;

  if (!match(mask, target_p->name))
    return 1;

  if (!match(mask, target_p->username))
    return 1;

  if (!match(mask, target_p->host))
    return 1;

  if (!match(mask, target_p->info))
    return 1;

  if (HasUMode(source_p, UMODE_OPER))
    if (!match(mask, target_p->sockhost))
      return 1;

  if (HasUMode(source_p, UMODE_OPER) ||
      (!ConfigServerHide.hide_servers && !IsHidden(target_p->servptr)))
    if (!match(mask, target_p->servptr->name))
      return 1;

  return 0;
}

/* who_common_channel
 * inputs       - pointer to client requesting who
 *              - pointer to channel member chain.
 *              - char * mask to match
 *              - int if oper on a server or not
 *              - pointer to int maxmatches
 * output       - NONE
 * side effects - lists matching clients on specified channel,
 *                marks matched clients.
 *
 */
static void
who_common_channel(struct Client *source_p, struct Channel *chptr, const char *mask,
                   int server_oper, unsigned int *maxmatches)
{
  dlink_node *node = NULL;

  DLINK_FOREACH(node, chptr->members.head)
  {
    struct Client *target_p = ((struct Membership *)node->data)->client_p;

    if (!HasUMode(target_p, UMODE_INVISIBLE) || HasFlag(target_p, FLAGS_MARK))
      continue;

    if (server_oper)
      if (!HasUMode(target_p, UMODE_OPER) ||
          (HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
        continue;

    AddFlag(target_p, FLAGS_MARK);

    if (who_matches(source_p, target_p, mask))
    {
      do_who(source_p, target_p, NULL, "");

      if (*maxmatches > 0)
      {
        if (--(*maxmatches) == 0)
        {
          sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO");
          return;
        }
      }
    }
  }
}

/* who_global()
 *
 * inputs       - pointer to client requesting who
 *              - char * mask to match
 *              - int if oper on a server or not
 * output       - NONE
 * side effects - do a global scan of all clients looking for match
 *                this is slightly expensive on EFnet ...
 */
static void
who_global(struct Client *source_p, const char *mask, int server_oper)
{
  dlink_node *node = NULL;
  unsigned int maxmatches = WHO_MAX_REPLIES;
  static uintmax_t last_used = 0;

  if (!HasUMode(source_p, UMODE_OPER))
  {
    if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
    {
      sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHO");
      return;
    }

    last_used = CurrentTime;
  }

  /* First, list all matching invisible clients on common channels */
  DLINK_FOREACH(node, source_p->channel.head)
  {
    struct Channel *chptr = ((struct Membership *)node->data)->chptr;
    who_common_channel(source_p, chptr, mask, server_oper, &maxmatches);
  }

  /* Second, list all matching visible clients */
  DLINK_FOREACH(node, global_client_list.head)
  {
    struct Client *target_p = node->data;

    if (!IsClient(target_p))
      continue;

    if (HasUMode(target_p, UMODE_INVISIBLE))
    {
      DelFlag(target_p, FLAGS_MARK);
      continue;
    }

    if (server_oper)
      if (!HasUMode(target_p, UMODE_OPER) ||
          (HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
        continue;

    if (who_matches(source_p, target_p, mask))
    {
      do_who(source_p, target_p, NULL, "");

      if (maxmatches > 0)
      {
        if (--maxmatches == 0)
        {
          sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO");
          return;
        }
      }
    }
  }
}

/* do_who_on_channel()
 *
 * inputs       - pointer to client requesting who
 *              - pointer to channel to do who on
 *              - The "real name" of this channel
 *              - int if source_p is a server oper or not
 *              - int if client is member or not
 *              - int server_op flag
 * output       - NONE
 * side effects - do a who on given channel
 */
static void
do_who_on_channel(struct Client *source_p, struct Channel *chptr,
                  int is_member, int server_oper)
{
  dlink_node *node = NULL;

  DLINK_FOREACH(node, chptr->members.head)
  {
    struct Membership *member = node->data;
    struct Client *target_p = member->client_p;

    if (is_member || !HasUMode(target_p, UMODE_INVISIBLE))
    {
      if (server_oper)
        if (!HasUMode(target_p, UMODE_OPER) ||
            (HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
          continue;
      do_who(source_p, target_p, chptr->name, get_member_status(member, !!HasCap(source_p, CAP_MULTI_PREFIX)));
    }
  }
}

/*! \brief WHO 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] = nickname/channelname
 *      - parv[2] = additional selection flag, only 'o' for now
 */
static int
m_who(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  struct Channel *chptr = NULL;
  char *mask = parv[1];
  dlink_node *node = NULL;
  const int server_oper = parc > 2 && *parv[2] == 'o';  /* Show OPERS only */

  /* See if mask is there, collapse it or return if not there */
  if (EmptyString(mask))
  {
    who_global(source_p, NULL, server_oper);
    sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*");
    return 0;
  }

  /* Mask isn't NULL at this point. repeat after me... -db */
  collapse(mask);

  /* '/who #some_channel' */
  if (IsChanPrefix(*mask))
  {
    /* List all users on a given channel */
    if ((chptr = hash_find_channel(mask)))
    {
      if (HasUMode(source_p, UMODE_ADMIN) || IsMember(source_p, chptr))
        do_who_on_channel(source_p, chptr, 1, server_oper);
      else if (!SecretChannel(chptr))
        do_who_on_channel(source_p, chptr, 0, server_oper);
    }

    sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
    return 0;
  }

  /* '/who nick' */
  if ((target_p = find_person(source_p, mask)) &&
      (!server_oper || HasUMode(target_p, UMODE_OPER)))
  {
    DLINK_FOREACH(node, target_p->channel.head)
    {
      chptr = ((struct Membership *)node->data)->chptr;
      if (PubChannel(chptr) || IsMember(source_p, chptr))
        break;
    }

    if (node)
      do_who(source_p, target_p, chptr->name,
             get_member_status(node->data, !!HasCap(source_p, CAP_MULTI_PREFIX)));
    else
      do_who(source_p, target_p, NULL, "");

    sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
    return 0;
  }

  /* '/who *' */
  if (!strcmp(mask, "*"))
  {
    if ((node = source_p->channel.head))
    {
      chptr = ((struct Membership *)node->data)->chptr;
      do_who_on_channel(source_p, chptr, 1, server_oper);
    }

    sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*");
    return 0;
  }

  /* '/who 0' */
  if (!strcmp(mask, "0"))
    who_global(source_p, NULL, server_oper);
  else
    who_global(source_p, mask, server_oper);

  /* Wasn't a nick, wasn't a channel, wasn't a '*' so ... */
  sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
  return 0;
}

static struct Message who_msgtab =
{
  .cmd = "WHO",
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_who,
  .handlers[SERVER_HANDLER] = m_ignore,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = m_who
};

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

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

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	7645
Committed:	Sat Jul 16 17:57:13 2016 UTC (9 years, 1 month ago) by michael
Content type:	text/x-csrc
File size:	10910 byte(s)
Log Message:	- m_who.c:m_who(): swap tests
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	7006	* Copyright (c) 1997-2016 ircd-hybrid development team
5	adx	30	*
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	michael	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21	michael	1011
22	michael	2820	/*! \file m_who.c
23			* \brief Includes required functions for processing the WHO command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1011	#include "list.h"
29	adx	30	#include "client.h"
30			#include "channel.h"
31			#include "channel_mode.h"
32			#include "hash.h"
33			#include "ircd.h"
34			#include "numeric.h"
35	michael	3347	#include "server.h"
36	adx	30	#include "send.h"
37			#include "irc_string.h"
38	michael	1309	#include "conf.h"
39	adx	30	#include "parse.h"
40			#include "modules.h"
41
42
43	michael	6405	enum { WHO_MAX_REPLIES = 500 };
44	michael	4508
45
46	michael	2088	/* do_who()
47			*
48			* inputs - pointer to client requesting who
49			* - pointer to client to do who on
50			* - The reported name
51			* - channel flags
52			* output - NONE
53			* side effects - do a who on given person
54			*/
55	adx	30	static void
56	michael	6446	do_who(struct Client source_p, const struct Client target_p,
57	michael	4618	const char name, const char op_flags)
58	adx	30	{
59	michael	3246	char status[IRCD_BUFSIZE] = "";
60	adx	30
61	michael	2088	if (HasUMode(source_p, UMODE_OPER))
62	michael	2549	snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H',
63			HasUMode(target_p, UMODE_REGISTERED) ? "r" : "",
64	michael	2088	HasUMode(target_p, UMODE_OPER) ? "*" : "", op_flags);
65			else
66	michael	2549	snprintf(status, sizeof(status), "%c%s%s%s", target_p->away[0] ? 'G' : 'H',
67			HasUMode(target_p, UMODE_REGISTERED) ? "r" : "",
68	michael	2088	HasUMode(target_p, UMODE_OPER) &&
69			!HasUMode(target_p, UMODE_HIDDEN) ? "*" : "", op_flags);
70	adx	30
71	michael	2748	if (ConfigServerHide.hide_servers \|\| IsHidden(target_p->servptr))
72	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOREPLY,
73	michael	4618	(name) ? (name) : "*",
74	michael	2088	target_p->username, target_p->host,
75			HasUMode(source_p, UMODE_OPER) ? target_p->servptr->name : "*",
76	michael	2756	target_p->name, status,
77			HasUMode(source_p, UMODE_OPER) ? target_p->hopcount : 0, target_p->info);
78	adx	30	else
79	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOREPLY,
80	michael	4618	(name) ? (name) : "*", target_p->username,
81	michael	2088	target_p->host, target_p->servptr->name, target_p->name,
82			status, target_p->hopcount, target_p->info);
83	adx	30	}
84
85	michael	7641	/*!
86			* \param source_p Pointer to client requesting who
87			* \param target_p Pointer to client to do who on
88			* \param mask Mask to match
89			* \return 1 if mask matches, 0 otherwise
90			*/
91			static int
92			who_matches(struct Client source_p, struct Client target_p, const char *mask)
93			{
94			if (!mask)
95			return 1;
96
97			if (!match(mask, target_p->name))
98			return 1;
99
100			if (!match(mask, target_p->username))
101			return 1;
102
103			if (!match(mask, target_p->host))
104			return 1;
105
106			if (!match(mask, target_p->info))
107			return 1;
108
109	michael	7643	if (HasUMode(source_p, UMODE_OPER))
110			if (!match(mask, target_p->sockhost))
111			return 1;
112
113	michael	7641	if (HasUMode(source_p, UMODE_OPER) \|\|
114			(!ConfigServerHide.hide_servers && !IsHidden(target_p->servptr)))
115			if (!match(mask, target_p->servptr->name))
116			return 1;
117
118			return 0;
119			}
120
121	adx	30	/* who_common_channel
122			* inputs - pointer to client requesting who
123			* - pointer to channel member chain.
124			* - char * mask to match
125			* - int if oper on a server or not
126			* - pointer to int maxmatches
127			* output - NONE
128			* side effects - lists matching clients on specified channel,
129			* marks matched clients.
130			*
131			*/
132			static void
133	michael	6705	who_common_channel(struct Client source_p, struct Channel chptr, const char *mask,
134	michael	3911	int server_oper, unsigned int *maxmatches)
135	adx	30	{
136	michael	4815	dlink_node *node = NULL;
137	adx	30
138	michael	4815	DLINK_FOREACH(node, chptr->members.head)
139	adx	30	{
140	michael	4815	struct Client target_p = ((struct Membership )node->data)->client_p;
141	adx	30
142	michael	1219	if (!HasUMode(target_p, UMODE_INVISIBLE) \|\| HasFlag(target_p, FLAGS_MARK))
143	adx	30	continue;
144
145	michael	1295	if (server_oper)
146			if (!HasUMode(target_p, UMODE_OPER) \|\|
147			(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
148			continue;
149	adx	30
150	michael	1219	AddFlag(target_p, FLAGS_MARK);
151	adx	30
152	michael	7641	if (who_matches(source_p, target_p, mask))
153	adx	30	{
154			do_who(source_p, target_p, NULL, "");
155
156			if (*maxmatches > 0)
157			{
158	adx	268	if (--(*maxmatches) == 0)
159	michael	4508	{
160	michael	5639	sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO");
161	adx	268	return;
162	michael	4508	}
163	adx	30	}
164			}
165			}
166			}
167
168			/* who_global()
169			*
170			* inputs - pointer to client requesting who
171			* - char * mask to match
172			* - int if oper on a server or not
173			* output - NONE
174			* side effects - do a global scan of all clients looking for match
175			* this is slightly expensive on EFnet ...
176			*/
177			static void
178	michael	6705	who_global(struct Client source_p, const char mask, int server_oper)
179	adx	30	{
180	michael	4815	dlink_node *node = NULL;
181	michael	5639	unsigned int maxmatches = WHO_MAX_REPLIES;
182	michael	7330	static uintmax_t last_used = 0;
183	adx	30
184	michael	1219	if (!HasUMode(source_p, UMODE_OPER))
185	adx	268	{
186	michael	4340	if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
187	adx	268	{
188	michael	4759	sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHO");
189	adx	268	return;
190			}
191	michael	980
192			last_used = CurrentTime;
193	adx	268	}
194
195	michael	3346	/* First, list all matching invisible clients on common channels */
196	michael	4815	DLINK_FOREACH(node, source_p->channel.head)
197	adx	30	{
198	michael	4815	struct Channel chptr = ((struct Membership )node->data)->chptr;
199	adx	30	who_common_channel(source_p, chptr, mask, server_oper, &maxmatches);
200			}
201
202	michael	3346	/* Second, list all matching visible clients */
203	michael	4815	DLINK_FOREACH(node, global_client_list.head)
204	adx	30	{
205	michael	4815	struct Client *target_p = node->data;
206	adx	30
207			if (!IsClient(target_p))
208			continue;
209
210	michael	1219	if (HasUMode(target_p, UMODE_INVISIBLE))
211	adx	30	{
212	michael	1219	DelFlag(target_p, FLAGS_MARK);
213	adx	30	continue;
214			}
215
216	michael	1295	if (server_oper)
217			if (!HasUMode(target_p, UMODE_OPER) \|\|
218			(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
219			continue;
220	adx	30
221	michael	7641	if (who_matches(source_p, target_p, mask))
222	adx	30	{
223			do_who(source_p, target_p, NULL, "");
224
225			if (maxmatches > 0)
226			{
227			if (--maxmatches == 0)
228	michael	4508	{
229	michael	5639	sendto_one_numeric(source_p, &me, ERR_WHOLIMEXCEED, WHO_MAX_REPLIES, "WHO");
230	adx	268	return;
231	michael	4508	}
232	adx	30	}
233			}
234			}
235			}
236
237			/* do_who_on_channel()
238			*
239			* inputs - pointer to client requesting who
240			* - pointer to channel to do who on
241			* - The "real name" of this channel
242			* - int if source_p is a server oper or not
243			* - int if client is member or not
244			* - int server_op flag
245			* output - NONE
246			* side effects - do a who on given channel
247			*/
248			static void
249			do_who_on_channel(struct Client source_p, struct Channel chptr,
250	michael	4815	int is_member, int server_oper)
251	adx	30	{
252	michael	4815	dlink_node *node = NULL;
253	adx	30
254	michael	4815	DLINK_FOREACH(node, chptr->members.head)
255	adx	30	{
256	michael	4815	struct Membership *member = node->data;
257			struct Client *target_p = member->client_p;
258	adx	30
259	michael	4815	if (is_member \|\| !HasUMode(target_p, UMODE_INVISIBLE))
260	adx	30	{
261	michael	1295	if (server_oper)
262			if (!HasUMode(target_p, UMODE_OPER) \|\|
263			(HasUMode(target_p, UMODE_HIDDEN) && !HasUMode(source_p, UMODE_OPER)))
264			continue;
265	michael	4815	do_who(source_p, target_p, chptr->name, get_member_status(member, !!HasCap(source_p, CAP_MULTI_PREFIX)));
266	adx	30	}
267			}
268			}
269
270	michael	3346	/*! \brief WHO command handler
271			*
272			* \param source_p Pointer to allocated Client struct from which the message
273			* originally comes from. This can be a local or remote client.
274			* \param parc Integer holding the number of supplied arguments.
275			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
276			* pointers.
277			* \note Valid arguments for this command are:
278			* - parv[0] = command
279			* - parv[1] = nickname/channelname
280			* - parv[2] = additional selection flag, only 'o' for now
281			*/
282	michael	2820	static int
283	michael	3156	m_who(struct Client source_p, int parc, char parv[])
284	adx	30	{
285	michael	2088	struct Client *target_p = NULL;
286			struct Channel *chptr = NULL;
287			char *mask = parv[1];
288	michael	4815	dlink_node *node = NULL;
289	michael	6446	const int server_oper = parc > 2 && parv[2] == 'o'; / Show OPERS only */
290	adx	30
291	michael	2088	/* See if mask is there, collapse it or return if not there */
292			if (EmptyString(mask))
293			{
294	michael	5884	who_global(source_p, NULL, server_oper);
295	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*");
296	michael	2820	return 0;
297	michael	2088	}
298	adx	30
299	michael	3346	/* Mask isn't NULL at this point. repeat after me... -db */
300	michael	2088	collapse(mask);
301
302			/* '/who #some_channel' */
303			if (IsChanPrefix(*mask))
304	adx	30	{
305	michael	2088	/* List all users on a given channel */
306	michael	3246	if ((chptr = hash_find_channel(mask)))
307	michael	2088	{
308	michael	7645	if (HasUMode(source_p, UMODE_ADMIN) \|\| IsMember(source_p, chptr))
309	michael	4529	do_who_on_channel(source_p, chptr, 1, server_oper);
310	michael	2088	else if (!SecretChannel(chptr))
311	michael	4529	do_who_on_channel(source_p, chptr, 0, server_oper);
312	michael	2088	}
313
314	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
315	michael	2820	return 0;
316	adx	30	}
317	michael	2088
318			/* '/who nick' */
319	michael	4996	if ((target_p = find_person(source_p, mask)) &&
320	michael	4823	(!server_oper \|\| HasUMode(target_p, UMODE_OPER)))
321	michael	2088	{
322	michael	4815	DLINK_FOREACH(node, target_p->channel.head)
323	michael	2088	{
324	michael	4815	chptr = ((struct Membership *)node->data)->chptr;
325	michael	2088	if (PubChannel(chptr) \|\| IsMember(source_p, chptr))
326			break;
327			}
328
329	michael	4815	if (node)
330	michael	4618	do_who(source_p, target_p, chptr->name,
331	michael	4815	get_member_status(node->data, !!HasCap(source_p, CAP_MULTI_PREFIX)));
332	michael	2088	else
333			do_who(source_p, target_p, NULL, "");
334
335	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
336	michael	2820	return 0;
337	michael	2088	}
338
339	michael	2091	/* '/who ' /
340			if (!strcmp(mask, "*"))
341			{
342	michael	4815	if ((node = source_p->channel.head))
343	michael	2091	{
344	michael	4815	chptr = ((struct Membership *)node->data)->chptr;
345	michael	4529	do_who_on_channel(source_p, chptr, 1, server_oper);
346	michael	2091	}
347
348	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, "*");
349	michael	2820	return 0;
350	michael	2091	}
351
352	michael	2088	/* '/who 0' */
353			if (!strcmp(mask, "0"))
354			who_global(source_p, NULL, server_oper);
355			else
356			who_global(source_p, mask, server_oper);
357
358			/* Wasn't a nick, wasn't a channel, wasn't a '' so ... /
359	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHO, mask);
360	michael	2820	return 0;
361	adx	30	}
362	michael	1230
363	michael	2820	static struct Message who_msgtab =
364			{
365	michael	5881	.cmd = "WHO",
366			.args_max = MAXPARA,
367			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
368			.handlers[CLIENT_HANDLER] = m_who,
369			.handlers[SERVER_HANDLER] = m_ignore,
370			.handlers[ENCAP_HANDLER] = m_ignore,
371			.handlers[OPER_HANDLER] = m_who
372	michael	1230	};
373
374			static void
375			module_init(void)
376			{
377			mod_add_cmd(&who_msgtab);
378			}
379
380			static void
381			module_exit(void)
382			{
383			mod_del_cmd(&who_msgtab);
384			}
385
386	michael	2820	struct module module_entry =
387			{
388	michael	1230	.version = "$Revision$",
389			.modinit = module_init,
390			.modexit = module_exit,
391			};