/* * IRC - Internet Relay Chat, ircd/m_opmode.c * Copyright (C) 1990 Jarkko Oikarinen and * University of Oulu, Computing Center * Copyright (C) 2000 Kevin L. Mitchell * * 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_opmode.c 796 2004-09-08 22:47:14Z r33d $ */ /* * 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 "client.h" #include "channel.h" #include "hash.h" #include "ircd.h" #include "ircd_features.h" #include "ircd_reply.h" #include "ircd_string.h" #include "msg.h" #include "numeric.h" #include "numnicks.h" #include "send.h" #include "s_conf.h" #include /* * ms_opmode - server message handler */ int ms_opmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Channel *chptr = 0; struct ModeBuf mbuf; if (parc < 3) return need_more_params(sptr, "OPMODE"); if (IsLocalChannel(parv[1])) return 0; if (!(chptr = FindChannel(parv[1]))) return send_reply(sptr, ERR_NOSUCHCHANNEL, parv[1]); modebuf_init(&mbuf, sptr, cptr, chptr, (MODEBUF_DEST_CHANNEL | /* Send MODE to channel */ MODEBUF_DEST_SERVER | /* And to server */ MODEBUF_DEST_OPMODE | /* Use OPMODE */ MODEBUF_DEST_HACK4 | /* Generate a HACK(4) notice */ MODEBUF_DEST_LOG)); /* Log the mode changes to OPATH */ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, (MODE_PARSE_SET | /* Set the modes on the channel */ MODE_PARSE_STRICT | /* Be strict about it */ MODE_PARSE_FORCE), NULL); /* And force them to be accepted */ modebuf_flush(&mbuf); /* flush the modes */ return 0; } /* * mo_opmode - oper message handler */ int mo_opmode(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Channel *chptr = 0; struct ModeBuf mbuf; char *chname, *qreason; int force = 0; struct Membership *tmp; if (!feature_bool(FEAT_CONFIG_OPERCMDS)) return send_reply(sptr, ERR_DISABLED, "OPMODE"); if (parc < 3) return need_more_params(sptr, "OPMODE"); chname = parv[1]; if (*chname == '!') { chname++; if (!HasPriv(sptr, IsLocalChannel(chname) ? PRIV_FORCE_LOCAL_OPMODE : PRIV_FORCE_OPMODE)) return send_reply(sptr, ERR_NOPRIVILEGES); force = 1; } clean_channelname(chname); if (!HasPriv(sptr, IsLocalChannel(chname) ? PRIV_LOCAL_OPMODE : PRIV_OPMODE)) return send_reply(sptr, ERR_NOPRIVILEGES); if (!(chptr = FindChannel(chname))) return send_reply(sptr, ERR_NOSUCHCHANNEL, chname); if (!force) { if ((qreason = find_quarantine(chptr->chname))) return send_reply(sptr, ERR_QUARANTINED, chptr->chname, qreason); for (tmp = chptr->members; tmp; tmp = tmp->next_member) if (IsService(cli_user(tmp->user)->server) && IsChannelService(tmp->user)) { /* Impersonate the abuser */ sendwallto_group_butone(&me, WALL_DESYNCH, NULL, "Failed OPMODE for registered channel %s by %s", chptr->chname, cli_name(sptr)); return send_reply(sptr, ERR_QUARANTINED, chptr->chname, "This channel is registered."); } } modebuf_init(&mbuf, sptr, cptr, chptr, (MODEBUF_DEST_CHANNEL | /* Send MODE to channel */ MODEBUF_DEST_SERVER | /* And to server */ MODEBUF_DEST_OPMODE | /* Use OPMODE */ MODEBUF_DEST_HACK4 | /* Generate a HACK(4) notice */ MODEBUF_DEST_LOG)); /* Log the mode changes to OPATH */ mode_parse(&mbuf, cptr, sptr, chptr, parc - 2, parv + 2, (MODE_PARSE_SET | /* set the modes on the channel */ MODE_PARSE_FORCE), NULL); /* And force them to be accepted */ modebuf_flush(&mbuf); /* flush the modes */ return 0; }