2 * IRC - Internet Relay Chat, ircd/s_user.c (formerly ircd/s_msg.c)
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 1, or (at your option)
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 * @brief Support functions for /WHO-like commands.
34 #include "ircd_chattr.h"
35 #include "ircd_features.h"
36 #include "ircd_reply.h"
37 #include "ircd_snprintf.h"
38 #include "ircd_string.h"
43 #include "querycmds.h"
64 /** Send a WHO reply to a client who asked.
65 * @param[in] sptr Client who is searching for other users.
66 * @param[in] acptr Client who may be shown to \a sptr.
67 * @param[in] repchan Shared channel that provides visibility.
68 * @param[in] fields Bitmask of WHO_FIELD_* values, indicating what to show.
69 * @param[in] qrt Query type string (ignored unless \a fields & WHO_FIELD_QTY).
71 void do_who(struct Client* sptr, struct Client* acptr, struct Channel* repchan,
72 int fields, char* qrt)
75 struct Channel *chptr = repchan;
77 static char buf1[512];
78 /* NOTE: with current fields list and sizes this _cannot_ overrun,
79 and also the message finally sent shouldn't ever be truncated */
84 /* If we don't have a channel and we need one... try to find it,
85 unless the listing is for a channel service, we already know
86 that there are no common channels, thus use PubChannel and not
88 if (!chptr && (!fields || (fields & (WHO_FIELD_CHA | WHO_FIELD_FLA))) &&
89 !IsChannelService(acptr))
91 struct Membership* chan;
92 for (chan = cli_user(acptr)->channel; chan && !chptr; chan = chan->next_channel)
93 if (PubChannel(chan->channel) &&
94 (acptr == sptr || !IsZombie(chan)))
95 chptr = chan->channel;
98 /* Place the fields one by one in the buffer and send it
99 note that fields == NULL means "default query" */
101 if (fields & WHO_FIELD_QTY) /* Query type */
107 while ((*qrt) && (*(p1++) = *(qrt++)));
110 if (!fields || (fields & WHO_FIELD_CHA))
114 if ((p2 = (chptr ? chptr->chname : NULL)))
115 while ((*p2) && (*(p1++) = *(p2++)));
120 if (!fields || (fields & WHO_FIELD_UID))
122 char *p2 = cli_user(acptr)->username;
124 while ((*p2) && (*(p1++) = *(p2++)));
127 if (fields & WHO_FIELD_NIP)
129 const char* p2 = HasHiddenHost(acptr) && !IsAnOper(sptr) ?
130 feature_str(FEAT_HIDDEN_IP) :
131 ircd_ntoa(&cli_ip(acptr));
133 while ((*p2) && (*(p1++) = *(p2++)));
136 if (!fields || (fields & WHO_FIELD_HOS))
138 char *p2 = cli_user(acptr)->host;
140 while ((*p2) && (*(p1++) = *(p2++)));
143 if (!fields || (fields & WHO_FIELD_SER))
145 const char *p2 = (feature_bool(FEAT_HIS_WHO_SERVERNAME) && !IsAnOper(sptr)) ?
146 feature_str(FEAT_HIS_SERVERNAME) :
147 cli_name(cli_user(acptr)->server);
149 while ((*p2) && (*(p1++) = *(p2++)));
152 if (!fields || (fields & WHO_FIELD_NIC))
154 char *p2 = cli_name(acptr);
156 while ((*p2) && (*(p1++) = *(p2++)));
159 if (!fields || (fields & WHO_FIELD_FLA))
162 if (cli_user(acptr)->away)
166 if SeeOper(sptr,acptr)
169 /* If you specified flags then we assume you know how to parse
170 * multiple channel status flags, as this is currently the only
171 * way to know if someone has @'s *and* is +'d.
173 if (chptr && is_chan_op(acptr, chptr))
175 if (chptr && has_voice(acptr, chptr))
177 if (chptr && is_zombie(acptr, chptr))
181 if (chptr && is_chan_op(acptr, chptr))
183 else if (chptr && has_voice(acptr, chptr))
185 else if (chptr && is_zombie(acptr, chptr))
192 if (IsInvisible(acptr))
194 if (SendWallops(acptr))
196 if (SendDebug(acptr))
199 if (HasHiddenHost(acptr))
203 if (!fields || (fields & WHO_FIELD_DIS))
207 *p1++ = ':'; /* Place colon here for default reply */
208 if (feature_bool(FEAT_HIS_WHO_HOPCOUNT) && !IsAnOper(sptr))
209 *p1++ = (sptr == acptr) ? '0' : '3';
211 /* three digit hopcount maximum */
212 p1 += ircd_snprintf(0, p1, 3, "%d", cli_hopcount(acptr));
215 if (fields & WHO_FIELD_IDL)
219 (IsAnOper(sptr) || !feature_bool(FEAT_HIS_WHO_SERVERNAME) ||
221 p1 += ircd_snprintf(0, p1, 11, "%d",
222 CurrentTime - cli_user(acptr)->last);
227 if (fields & WHO_FIELD_ACC)
229 char *p2 = cli_user(acptr)->account;
232 while ((*p2) && (*(p1++) = *(p2++)));
237 if (!fields || (fields & WHO_FIELD_REN))
239 char *p2 = cli_info(acptr);
242 *p1++ = ':'; /* Place colon here for special reply */
243 while ((*p2) && (*(p1++) = *(p2++)));
246 /* The first char will always be an useless blank and we
247 need to terminate buf1 */
250 send_reply(sptr, fields ? RPL_WHOSPCRPL : RPL_WHOREPLY, ++p1);
253 /** Count number of users who match \a mask.
254 * @param[in] mask user\@host or user\@ip mask to check.
255 * @return Count of matching users.
258 count_users(char *mask)
260 struct Client *acptr;
262 char namebuf[USERLEN + HOSTLEN + 2];
263 char ipbuf[USERLEN + 16 + 2];
265 for (acptr = GlobalClientList; acptr; acptr = cli_next(acptr)) {
269 ircd_snprintf(0, namebuf, sizeof(namebuf), "%s@%s",
270 cli_user(acptr)->username, cli_user(acptr)->host);
271 ircd_snprintf(0, ipbuf, sizeof(ipbuf), "%s@%s", cli_user(acptr)->username,
272 ircd_ntoa(&cli_ip(acptr)));
274 if (!match(mask, namebuf) || !match(mask, ipbuf))