2 * IRC - Internet Relay Chat, ircd/m_part.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.
27 * m_functions execute protocol messages on this server:
29 * cptr is always NON-NULL, pointing to a *LOCAL* client
30 * structure (with an open socket connected!). This
31 * identifies the physical socket where the message
32 * originated (or which caused the m_function to be
33 * executed--some m_functions may call others...).
35 * sptr is the source of the message, defined by the
36 * prefix part of the message if present. If not
37 * or prefix not found, then sptr==cptr.
39 * (!IsServer(cptr)) => (cptr == sptr), because
40 * prefixes are taken *only* from servers...
43 * (sptr == cptr) => the message didn't
46 * (sptr != cptr && IsServer(sptr) means
47 * the prefix specified servername. (?)
49 * (sptr != cptr && !IsServer(sptr) means
50 * that message originated from a remote
55 * (!IsServer(sptr)) means that, sptr can safely
56 * taken as defining the target structure of the
57 * message in this server.
59 * *Always* true (if 'parse' and others are working correct):
61 * 1) sptr->from == cptr (note: cptr->from == cptr)
63 * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
64 * *cannot* be a local connection, unless it's
65 * actually cptr!). [MyConnect(x) should probably
66 * be defined as (x == x->from) --msa ]
68 * parc number of variable parameter strings (if zero,
69 * parv is allowed to be NULL)
71 * parv a NULL terminated list of parameter pointers,
73 * parv[0], sender (prefix string), if not present
74 * this points to an empty string.
75 * parv[1]...parv[parc-1]
76 * pointers to additional parameters
77 * parv[parc] == NULL, *always*
79 * note: it is guaranteed that parv[0]..parv[parc-1] are all
88 #include "ircd_reply.h"
89 #include "ircd_string.h"
98 * m_part - generic message handler
100 * parv[0] = sender prefix
102 * parv[parc - 1] = comment
104 int m_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
106 struct Channel *chptr;
107 struct Membership *member;
108 struct JoinBuf parts;
112 cli_flags(sptr) &= ~FLAGS_TS8;
114 /* check number of arguments */
115 if (parc < 2 || parv[1][0] == '\0')
116 return need_more_params(sptr, "PART");
118 /* init join/part buffer */
119 joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART,
120 (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0,
123 /* scan through channel list */
124 for (name = ircd_strtok(&p, parv[1], ","); name;
125 name = ircd_strtok(&p, 0, ",")) {
127 chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */
129 if (!chptr) { /* complain if there isn't such a channel */
130 send_reply(sptr, ERR_NOSUCHCHANNEL, name);
134 if (!(member = find_member_link(chptr, sptr))) { /* complain if not on */
135 send_reply(sptr, ERR_NOTONCHANNEL, chptr->chname);
139 assert(!IsZombie(member)); /* Local users should never zombie */
141 joinbuf_join(&parts, chptr, /* part client from channel */
142 member_can_send_to_channel(member) ? 0 : CHFL_BANNED);
145 return joinbuf_flush(&parts); /* flush channel parts */
149 * ms_part - server message handler
151 * parv[0] = sender prefix
153 * parv[parc - 1] = comment
155 int ms_part(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
157 struct Channel *chptr;
158 struct Membership *member;
159 struct JoinBuf parts;
164 cli_flags(sptr) &= ~FLAGS_TS8;
166 /* check number of arguments */
167 if (parc < 2 || parv[1][0] == '\0')
168 return need_more_params(sptr, "PART");
170 /* init join/part buffer */
171 joinbuf_init(&parts, sptr, cptr, JOINBUF_TYPE_PART,
172 (parc > 2 && !EmptyString(parv[parc - 1])) ? parv[parc - 1] : 0,
175 /* scan through channel list */
176 for (name = ircd_strtok(&p, parv[1], ","); name;
177 name = ircd_strtok(&p, 0, ",")) {
181 chptr = get_channel(sptr, name, CGT_NO_CREATE); /* look up channel */
183 if (!chptr || IsLocalChannel(name) ||
184 !(member = find_member_link(chptr, sptr)))
185 continue; /* ignore from remote clients */
187 if (IsZombie(member)) /* figure out special flags... */
188 flags |= CHFL_ZOMBIE;
190 * XXX BUG: If a client /part's with a part notice, on channels where
191 * he's banned, local clients will not see the part notice, but remote
194 if (!member_can_send_to_channel(member))
195 flags |= CHFL_BANNED;
197 /* part user from channel */
198 joinbuf_join(&parts, chptr, flags);
201 return joinbuf_flush(&parts); /* flush channel parts */