ircd/m_admin.c

   1 /*
   2  * IRC - Internet Relay Chat, ircd/m_admin.c
   3  * Copyright (C) 1990 Jarkko Oikarinen and
   4  *                    University of Oulu, Computing Center
   5  *
   6  * See file AUTHORS in IRC package for additional names of
   7  * the programmers.
   8  *
   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)
  12  * any later version.
  13  *
  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.
  18  *
  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.
  22  *
  23  * $Id: m_admin.c,v 1.13.2.1 2007/05/20 13:02:51 entrope Exp $
  24  */
  25
  26 /*
  27  * m_functions execute protocol messages on this server:
  28  *
  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...).
  34  *
  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.
  38  *
  39  *            (!IsServer(cptr)) => (cptr == sptr), because
  40  *            prefixes are taken *only* from servers...
  41  *
  42  *            (IsServer(cptr))
  43  *                    (sptr == cptr) => the message didn't
  44  *                    have the prefix.
  45  *
  46  *                    (sptr != cptr && IsServer(sptr) means
  47  *                    the prefix specified servername. (?)
  48  *
  49  *                    (sptr != cptr && !IsServer(sptr) means
  50  *                    that message originated from a remote
  51  *                    user (not local).
  52  *
  53  *            combining
  54  *
  55  *            (!IsServer(sptr)) means that, sptr can safely
  56  *            taken as defining the target structure of the
  57  *            message in this server.
  58  *
  59  *    *Always* true (if 'parse' and others are working correct):
  60  *
  61  *    1)      sptr->from == cptr  (note: cptr->from == cptr)
  62  *
  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 ]
  67  *
  68  *    parc    number of variable parameter strings (if zero,
  69  *            parv is allowed to be NULL)
  70  *
  71  *    parv    a NULL terminated list of parameter pointers,
  72  *
  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*
  78  *
  79  *            note:   it is guaranteed that parv[0]..parv[parc-1] are all
  80  *                    non-NULL pointers.
  81  */
  82 #include "config.h"
  83
  84 #include "client.h"
  85 #include "hash.h"
  86 #include "ircd.h"
  87 #include "ircd_features.h"
  88 #include "ircd_log.h"
  89 #include "ircd_reply.h"
  90 #include "match.h"
  91 #include "msg.h"
  92 #include "numeric.h"
  93 #include "numnicks.h"
  94 #include "s_conf.h"
  95 #include "s_user.h"
  96
  97 /* #include <assert.h> -- Now using assert in ircd_log.h */
  98
  99 static int send_admin_info(struct Client* sptr)
 100 {
 101   const struct LocalConf* admin = conf_get_local();
 102   assert(0 != sptr);
 103
 104   send_reply(sptr, RPL_ADMINME,    cli_name(&me));
 105   send_reply(sptr, RPL_ADMINLOC1,  admin->location1);
 106   send_reply(sptr, RPL_ADMINLOC2,  admin->location2);
 107   send_reply(sptr, RPL_ADMINEMAIL, admin->contact);
 108   return 0;
 109 }
 110
 111
 112 /*
 113  * m_admin - generic message handler
 114  *
 115  * parv[0] = sender prefix
 116  * parv[1] = servername
 117  */
 118 int m_admin(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 119 {
 120   assert(0 != cptr);
 121   assert(cptr == sptr);
 122
 123   if (parc > 1  && match(parv[1], cli_name(&me)))
 124     return send_reply(sptr, ERR_NOPRIVILEGES);
 125
 126   return send_admin_info(sptr);
 127 }
 128
 129 /*
 130  * mo_admin - oper message handler
 131  *
 132  * parv[0] = sender prefix
 133  * parv[1] = servername
 134  */
 135 int mo_admin(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 136 {
 137   assert(0 != cptr);
 138   assert(cptr == sptr);
 139
 140   if (hunt_server_cmd(sptr, CMD_ADMIN, cptr, feature_int(FEAT_HIS_REMOTE),
 141                       ":%C", 1, parc, parv) != HUNTED_ISME)
 142     return 0;
 143   return send_admin_info(sptr);
 144 }
 145
 146 /*
 147  * ms_admin - server message handler
 148  *
 149  * parv[0] = sender prefix
 150  * parv[1] = servername
 151  */
 152 int ms_admin(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
 153 {
 154   assert(0 != cptr);
 155   assert(0 != sptr);
 156
 157   if (parc < 2)
 158     return 0;
 159
 160   if (hunt_server_cmd(sptr, CMD_ADMIN, cptr, 0, ":%C", 1, parc, parv) != HUNTED_ISME)
 161     return 0;
 162
 163   return send_admin_info(sptr);
 164 }
 165