--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_mode.c
+ * Copyright (C) 1990 Jarkko Oikarinen and
+ * University of Oulu, Computing Center
+ *
+ * See file AUTHORS in IRC package for additional names of
+ * the programmers.
+ *
+ * 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ */
+
+/*
+ * m_functions execute protocol messages on this server:
+ *
+ * cptr is always NON-NULL, pointing to a *LOCAL* client
+ * structure (with an open socket connected!). This
+ * identifies the physical socket where the message
+ * originated (or which caused the m_function to be
+ * executed--some m_functions may call others...).
+ *
+ * sptr is the source of the message, defined by the
+ * prefix part of the message if present. If not
+ * or prefix not found, then sptr==cptr.
+ *
+ * (!IsServer(cptr)) => (cptr == sptr), because
+ * prefixes are taken *only* from servers...
+ *
+ * (IsServer(cptr))
+ * (sptr == cptr) => the message didn't
+ * have the prefix.
+ *
+ * (sptr != cptr && IsServer(sptr) means
+ * the prefix specified servername. (?)
+ *
+ * (sptr != cptr && !IsServer(sptr) means
+ * that message originated from a remote
+ * user (not local).
+ *
+ * combining
+ *
+ * (!IsServer(sptr)) means that, sptr can safely
+ * taken as defining the target structure of the
+ * message in this server.
+ *
+ * *Always* true (if 'parse' and others are working correct):
+ *
+ * 1) sptr->from == cptr (note: cptr->from == cptr)
+ *
+ * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
+ * *cannot* be a local connection, unless it's
+ * actually cptr!). [MyConnect(x) should probably
+ * be defined as (x == x->from) --msa ]
+ *
+ * parc number of variable parameter strings (if zero,
+ * parv is allowed to be NULL)
+ *
+ * parv a NULL terminated list of parameter pointers,
+ *
+ * parv[0], sender (prefix string), if not present
+ * this points to an empty string.
+ * parv[1]...parv[parc-1]
+ * pointers to additional parameters
+ * parv[parc] == NULL, *always*
+ *
+ * note: it is guaranteed that parv[0]..parv[parc-1] are all
+ * non-NULL pointers.
+ */
+#include "config.h"
+
+#include "handlers.h"
+#include "channel.h"
+#include "client.h"
+#include "hash.h"
+#include "ircd.h"
+#include "ircd_features.h"
+#include "ircd_log.h"
+#include "ircd_reply.h"
+#include "ircd_string.h"
+#include "msg.h"
+#include "numeric.h"
+#include "numnicks.h"
+#include "s_conf.h"
+#include "s_debug.h"
+#include "s_user.h"
+#include "send.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdlib.h>
+#include <string.h>
+
+int
+m_mode(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
+{
+ struct Channel *chptr = 0;
+ struct ModeBuf mbuf;
+ struct Membership *member;
+
+ if (parc < 2)
+ return need_more_params(sptr, "MODE");
+
+ if (!IsChannelName(parv[1]) || !(chptr = FindChannel(parv[1])))
+ {
+ struct Client *acptr;
+
+ acptr = FindUser(parv[1]);
+ if (!acptr)
+ {
+ send_reply(sptr, ERR_NOSUCHCHANNEL, parv[1]);
+ return 0;
+ }
+ else if (sptr != acptr)
+ {
+ send_reply(sptr, ERR_USERSDONTMATCH);
+ return 0;
+ }
+ return set_user_mode(cptr, sptr, parc, parv, ALLOWMODES_ANY);
+ }
+
+ ClrFlag(sptr, FLAG_TS8);
+
+ member = find_member_link(chptr, sptr);
+
+ if (parc < 3) {
+ char modebuf[MODEBUFLEN];
+ char parabuf[MODEBUFLEN];
+
+ *modebuf = *parabuf = '\0';
+ modebuf[1] = '\0';
+ channel_modes(sptr, modebuf, parabuf, sizeof(parabuf), chptr, member);
+ send_reply(sptr, RPL_CHANNELMODEIS, chptr->chname, modebuf, parabuf);
+ send_reply(sptr, RPL_CREATIONTIME, chptr->chname, chptr->creationtime);
+ return 0;
+ }
+
+ if (!member || !IsChanOp(member)) {
+ if (IsLocalChannel(chptr->chname) && HasPriv(sptr, PRIV_MODE_LCHAN)) {
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to channel */
+ MODEBUF_DEST_HACK4)); /* Send HACK(4) notice */
+ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
+ (MODE_PARSE_SET | /* Set the mode */
+ MODE_PARSE_FORCE), /* Force it to take */
+ member);
+ return modebuf_flush(&mbuf);
+ } else
+ mode_parse(0, cptr, sptr, chptr, parc - 2, parv + 2,
+ (member ? MODE_PARSE_NOTOPER : MODE_PARSE_NOTMEMBER), member);
+ return 0;
+ }
+
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to channel */
+ MODEBUF_DEST_SERVER)); /* Send mode to servers */
+ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, MODE_PARSE_SET, member);
+ return modebuf_flush(&mbuf);
+}
+
+int
+ms_mode(struct Client *cptr, struct Client *sptr, int parc, char *parv[])
+{
+ struct Channel *chptr = 0;
+ struct ModeBuf mbuf;
+ struct Membership *member;
+
+ if (parc < 3)
+ return need_more_params(sptr, "MODE");
+
+ if (IsLocalChannel(parv[1]))
+ return 0;
+
+ if (!(chptr = FindChannel(parv[1])))
+ {
+ struct Client *acptr;
+
+ acptr = FindUser(parv[1]);
+ if (!acptr)
+ {
+ return 0;
+ }
+ else if (sptr != acptr)
+ {
+ sendwallto_group_butone(&me, WALL_WALLOPS, 0,
+ "MODE for User %s from %s!%s", parv[1],
+ cli_name(cptr), cli_name(sptr));
+ return 0;
+ }
+ return set_user_mode(cptr, sptr, parc, parv, ALLOWMODES_ANY);
+ }
+
+ ClrFlag(sptr, FLAG_TS8);
+
+ if (IsServer(sptr)) {
+ if (find_conf_byhost(cli_confs(cptr), cli_name(sptr), CONF_UWORLD))
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to clients */
+ MODEBUF_DEST_SERVER | /* Send mode to servers */
+ MODEBUF_DEST_HACK4)); /* Send a HACK(4) message */
+ else if (!feature_bool(FEAT_OPLEVELS))
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to clients */
+ MODEBUF_DEST_SERVER | /* Send mode to servers */
+ MODEBUF_DEST_HACK3)); /* Send a HACK(3) message */
+ else
+ /* Servers need to be able to op people who join using the Apass
+ * or upass, as well as people joining a zannel, therefore we do
+ * not generate HACK3 when oplevels are on. */
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to clients */
+ MODEBUF_DEST_SERVER)); /* Send mode to servers */
+
+ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
+ (MODE_PARSE_SET | /* Set the mode */
+ MODE_PARSE_STRICT | /* Interpret it strictly */
+ MODE_PARSE_FORCE), /* And force it to be accepted */
+ NULL);
+ } else {
+ if (!(member = find_member_link(chptr, sptr)) || !IsChanOp(member)) {
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_SERVER | /* Send mode to server */
+ MODEBUF_DEST_HACK2 | /* Send a HACK(2) message */
+ MODEBUF_DEST_DEOP | /* Deop the source */
+ MODEBUF_DEST_BOUNCE)); /* And bounce the MODE */
+ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
+ (MODE_PARSE_STRICT | /* Interpret it strictly */
+ MODE_PARSE_BOUNCE), /* And bounce the MODE */
+ member);
+ } else {
+ modebuf_init(&mbuf, sptr, cptr, chptr,
+ (MODEBUF_DEST_CHANNEL | /* Send mode to clients */
+ MODEBUF_DEST_SERVER)); /* Send mode to servers */
+ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2,
+ (MODE_PARSE_SET | /* Set the mode */
+ MODE_PARSE_STRICT | /* Interpret it strictly */
+ MODE_PARSE_FORCE), /* And force it to be accepted */
+ member);
+ }
+ }
+
+ return modebuf_flush(&mbuf);
+}
projects / ircu2.10.12-pk.git / blobdiff