/* * IRC - Internet Relay Chat, ircd/m_sethost.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_sethost.c 1271 2004-12-11 05:14:07Z klmitch $ */ /* * 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 "hash.h" #include "ircd.h" #include "ircd_features.h" #include "ircd_log.h" #include "ircd_reply.h" #include "ircd_snprintf.h" #include "ircd_string.h" #include "numeric.h" #include "numnicks.h" #include "s_conf.h" #include "s_user.h" #include "send.h" /* #include -- Now using assert in ircd_log.h */ /* * m_sethost - generic message handler */ int m_sethost(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Flags setflags; struct SHostConf *sconf = NULL; int res = 0; if (!feature_bool(FEAT_SETHOST)) { send_reply(cptr, ERR_DISABLED, "SETHOST"); return 0; } if (parc < 2) return need_more_params(sptr, "SETHOST"); /* Back up the flags first */ setflags = cli_flags(sptr); if (ircd_strcmp("undo", parv[1]) == 0) { ClearSetHost(sptr); cli_user(sptr)->sethost[0] = '\0'; } else if (parc < 3) { return need_more_params(sptr, "SETHOST"); } else { if (!valid_hostname(parv[1])) { send_reply(sptr, ERR_BADHOSTMASK, parv[1]); } else { sconf = find_shost_conf(sptr, parv[1], parv[2], &res); if ((res == 0) && (sconf != 0)) { if (strchr(parv[1], '@') != NULL) ircd_strncpy(cli_user(sptr)->sethost, parv[1], HOSTLEN + 1); else ircd_snprintf(0, cli_user(sptr)->sethost, USERLEN + HOSTLEN + 1, "%s@%s", cli_user(sptr)->username, parv[1]); if (FlagHas(&setflags, FLAG_SETHOST)) FlagClr(&setflags, FLAG_SETHOST); SetSetHost(sptr); SetHiddenHost(sptr); } else { if (res == 1) send_reply(sptr, ERR_PASSWDMISMATCH); else send_reply(sptr, ERR_HOSTUNAVAIL, parv[1]); } } } hide_hostmask(sptr); send_umode_out(cptr, sptr, &setflags, 0); return 0; } /* * mo_sethost - oper message handler */ int mo_sethost(struct Client* cptr, struct Client* sptr, int parc, char* parv[]) { struct Flags setflags; struct SHostConf *sconf = NULL; char hostmask[USERLEN + HOSTLEN + 2]; int res = 0; if (!feature_bool(FEAT_SETHOST)) { send_reply(cptr, ERR_DISABLED, "SETHOST"); return 0; } if (parc < 2) return need_more_params(sptr, "SETHOST"); /* Back up the flags first */ setflags = cli_flags(sptr); if (ircd_strcmp("undo", parv[1]) == 0) { ClearSetHost(sptr); cli_user(sptr)->sethost[0] = '\0'; } else if (parc < 3) { return need_more_params(sptr, "SETHOST"); } else { ircd_snprintf(0, hostmask, USERLEN + HOSTLEN + 1, "%s@%s", parv[1], parv[2]); if (!valid_username(parv[1]) || !valid_hostname(parv[2])) { send_reply(sptr, ERR_BADHOSTMASK, hostmask); } else if (HasPriv(sptr, PRIV_FREEFORM)) { ircd_strncpy(cli_user(sptr)->sethost, hostmask, USERLEN + HOSTLEN + 1); if (FlagHas(&setflags, FLAG_SETHOST)) FlagClr(&setflags, FLAG_SETHOST); SetSetHost(sptr); SetHiddenHost(sptr); } else { sconf = find_shost_conf(sptr, hostmask, NULL, &res); if ((res == 0) && (sconf != 0)) { ircd_strncpy(cli_user(sptr)->sethost, hostmask, USERLEN + HOSTLEN + 1); if (FlagHas(&setflags, FLAG_SETHOST)) FlagClr(&setflags, FLAG_SETHOST); SetSetHost(sptr); SetHiddenHost(sptr); } else { send_reply(sptr, ERR_HOSTUNAVAIL, hostmask); } } } hide_hostmask(sptr); send_umode_out(cptr, sptr, &setflags, 0); return 0; }