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/************************************************************************ |
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* IRC - Internet Relay Chat, contrib/m_operspy.c |
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* Copyright (C) 2002 William Bierman III and the Hybrid Development Team |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 1, or (at your option) |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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* $Id$ |
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*/ |
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|
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/*** PLEASE READ ME ***/ |
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/* |
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* This module gives an extraordinary amount of power to the opers |
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* who have the access to use it. It allows for users' privacy to |
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* be pretty much obliterated. The Hybrid Team assumes absolutely |
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* no responsibility for this file's (mis)use. |
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* |
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* - billy-jon |
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*/ |
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|
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#include "stdinc.h" |
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#include "handlers.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
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#include "client.h" |
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#include "common.h" /* FALSE bleah */ |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "s_conf.h" |
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#include "s_serv.h" |
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#include "send.h" |
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#include "msg.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "hash.h" |
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|
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/* enable logging of OPERSPY functions */ |
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#define OPERSPY_LOG |
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|
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/* enable this to log all local/remote operspy usage to a logfile */ |
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#define OPERSPY_LOGFILE |
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|
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/* enable this to send incoming operspy usage to connected +y (UMODE_SPY) opers */ |
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#define OPERSPY_NOTICE |
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|
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/* enable OPERSPY version of LIST */ |
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#define OPERSPY_LIST |
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|
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/* enable OPERSPY version of MODE */ |
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#define OPERSPY_MODE |
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|
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/* enable OPERSPY version of NAMES */ |
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#define OPERSPY_NAMES |
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|
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/* enable OPERSPY version of WHO */ |
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#define OPERSPY_WHO |
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|
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/* enable OPERSPY version of WHOIS */ |
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#define OPERSPY_WHOIS |
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|
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/* enable OPERSPY version of TOPIC */ |
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#define OPERSPY_TOPIC |
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|
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#define IsOperspy(x) (IsOper(x) && MyClient(x) && IsAdmin(x)) |
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|
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/* The commands we will add */ |
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static void ms_operspy(struct Client *, struct Client *, int, char *[]); |
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static void mo_operspy(struct Client *, struct Client *, int, char *[]); |
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|
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/* extensions for OPERSPY WHO */ |
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static void do_who(struct Client *, struct Client *, char *, const char *); |
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static void who_global(struct Client *, char *, int); |
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static void do_who_on_channel(struct Client *, struct Channel *, char *); |
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|
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static void operspy_list(struct Client *, int, char *[]); |
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static void operspy_mode(struct Client *, int, char *[]); |
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static void operspy_names(struct Client *, int, char *[]); |
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static void operspy_topic(struct Client *, int, char *[]); |
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static void operspy_who(struct Client *, int, char *[]); |
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static void operspy_whois(struct Client *, int, char *[]); |
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|
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|
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struct Message operspy_msgtab = { |
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"OPERSPY", 0, 0, 3, 4, MFLG_SLOW, 0, |
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{m_ignore, m_not_oper, ms_operspy, ms_operspy, mo_operspy, m_ignore} |
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}; |
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|
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static const struct operspy_s { |
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const char *const cmd; |
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void (*const func_p)(struct Client *, int, char *[]); |
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} operspy_table[] = { |
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#ifdef OPERSPY_LIST |
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{ "LIST", operspy_list }, |
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#endif |
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#ifdef OPERSPY_MODE |
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{ "MODE", operspy_mode }, |
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#endif |
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#ifdef OPERSPY_NAMES |
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{ "NAMES", operspy_names }, |
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#endif |
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#ifdef OPERSPY_TOPIC |
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{ "TOPIC", operspy_topic }, |
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#endif |
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#ifdef OPERSPY_WHO |
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{ "WHO", operspy_who }, |
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#endif |
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#ifdef OPERSPY_WHOIS |
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{ "WHOIS", operspy_whois }, |
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#endif |
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{ NULL, NULL } |
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}; |
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|
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#ifndef STATIC_MODULES |
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void |
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_modinit(void) |
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{ |
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mod_add_cmd(&operspy_msgtab); |
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} |
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|
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void |
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_moddeinit(void) |
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{ |
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mod_del_cmd(&operspy_msgtab); |
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} |
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const char *_version = "$Revision$"; |
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#endif |
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|
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#ifdef OPERSPY_LOG |
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static void operspy_log(struct Client *, const char *, const char *); |
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#endif |
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|
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static void |
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ms_operspy(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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#ifdef OPERSPY_LOG |
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operspy_log(source_p, parv[1], parv[2]); |
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#endif |
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} |
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|
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/* mo_operspy() |
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* parv[1] = operspy command |
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* parv[2] = command parameter |
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*/ |
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static void |
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mo_operspy(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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char cmdbuf[IRCD_BUFSIZE] = "<NONE>"; /* in case everything is undef'd */ |
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size_t bcnt = 0; |
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const struct operspy_s *optr = NULL; |
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|
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if (!IsOperspy(client_p)) |
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{ |
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sendto_one(client_p, form_str(ERR_NOPRIVILEGES), |
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me.name, client_p->name); |
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return; |
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} |
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|
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assert(client_p == source_p); |
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|
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for (optr = operspy_table; optr->cmd; ++optr) |
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{ |
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if (!irccmp(optr->cmd, parv[1])) |
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{ |
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(*optr->func_p)(client_p, parc, parv); |
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return; |
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} |
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} |
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|
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for (optr = operspy_table; optr->cmd; ++optr) |
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{ |
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/* str*cat is slow and sucks */ |
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bcnt += strlcpy(cmdbuf+bcnt, optr->cmd, sizeof(cmdbuf)-bcnt); |
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if ((optr + 1)->cmd != NULL && bcnt < (sizeof(cmdbuf)-2)) |
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{ |
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cmdbuf[bcnt++] = ','; |
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cmdbuf[bcnt++] = ' '; |
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} |
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} |
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|
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sendto_one(client_p, ":%s NOTICE %s :%s is not a valid option. Choose from %s", |
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me.name, client_p->name, parv[1], cmdbuf); |
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} |
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|
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static void |
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operspy_list(struct Client *client_p, int parc, char *parv[]) |
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{ |
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const dlink_node *ptr = NULL; |
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "LIST", parv[2]); |
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#endif |
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|
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if (*parv[2] == '\0') |
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return; |
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|
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sendto_one(client_p, form_str(RPL_LISTSTART), |
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me.name, client_p->name); |
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|
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DLINK_FOREACH(ptr, global_channel_list.head) |
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{ |
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const struct Channel *chptr_list = ptr->data; |
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|
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if (match_chan(parv[2], chptr_list->chname)) |
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{ |
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sendto_one(client_p, form_str(RPL_LIST), me.name, client_p->name, |
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chptr_list->chname, dlink_list_length(&chptr_list->members), |
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chptr_list->topic == NULL ? "" : chptr_list->topic); |
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} |
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} |
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|
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sendto_one(client_p, form_str(RPL_LISTEND), |
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me.name, client_p->name); |
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} |
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|
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static void |
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operspy_mode(struct Client *client_p, int parc, char *parv[]) |
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{ |
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/* needed to preserve actual client status */ |
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int c_status = 0; |
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char modebuf[MODEBUFLEN]; |
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char parabuf[MODEBUFLEN]; |
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struct Channel *chptr_mode = NULL; |
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|
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if ((chptr_mode = hash_find_channel(parv[2])) == NULL) |
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{ |
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/* |
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* according to m_mode.c, the channel *could* exist on the uplink still, |
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* but I don't see how. Even if it does, we won't be able to spy without |
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* info. |
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*/ |
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sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL), |
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me.name, client_p->name, parv[2]); |
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return; |
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} |
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|
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "MODE", parv[2]); |
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#endif |
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|
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/* |
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* XXX - this is a dirty nasty kludge to trick channel_modes() |
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* into giving us the key |
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*/ |
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c_status = client_p->status; |
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client_p->status = STAT_SERVER; |
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|
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channel_modes(chptr_mode, client_p, modebuf, parabuf); |
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client_p->status = c_status; |
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|
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sendto_one(client_p, form_str(RPL_CHANNELMODEIS), |
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me.name, client_p->name, parv[2], modebuf, parabuf); |
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sendto_one(client_p, form_str(RPL_CREATIONTIME), |
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me.name, client_p->name, parv[2], chptr_mode->channelts); |
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} |
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|
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static void |
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operspy_names(struct Client *client_p, int parc, char *parv[]) |
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{ |
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/* as with mode, must preserve channel modes */ |
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struct Channel *chptr_names = NULL; |
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|
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if ((chptr_names = hash_find_channel(parv[2])) == NULL) |
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{ |
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sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL), |
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me.name, client_p->name, parv[2]); |
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return; |
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} |
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|
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "NAMES", parv[2]); |
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#endif |
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|
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/* the way to go with this, rather than temporarily setting -sp, |
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* is to temporarily add our client to the member list. then |
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* we can also list +i users. an unfortunate side-effect of this |
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* is that your nickname shows up in the list. for now, there is |
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* no easy way around it. |
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*/ |
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add_user_to_channel(chptr_names, client_p, CHFL_CHANOP, NO); |
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channel_member_names(client_p, chptr_names, 1); |
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remove_user_from_channel(find_channel_link(client_p, chptr_names)); |
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} |
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|
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static void |
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operspy_topic(struct Client *client_p, int parc, char *parv[]) |
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{ |
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const struct Channel *chptr_topic = NULL; |
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|
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if ((chptr_topic = hash_find_channel(parv[2])) == NULL) |
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{ |
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sendto_one(client_p, form_str(ERR_NOSUCHCHANNEL), |
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me.name, client_p->name, parv[2]); |
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return; |
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} |
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|
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "TOPIC", parv[2]); |
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#endif |
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|
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if (chptr_topic->topic == NULL) |
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sendto_one(client_p, form_str(RPL_NOTOPIC), |
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me.name, client_p->name, parv[2]); |
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else |
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{ |
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sendto_one(client_p, form_str(RPL_TOPIC), me.name, client_p->name, |
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chptr_topic->chname, chptr_topic->topic); |
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sendto_one(client_p, form_str(RPL_TOPICWHOTIME), me.name, |
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client_p->name, chptr_topic->chname, chptr_topic->topic_info, |
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chptr_topic->topic_time); |
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} |
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} |
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|
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static void |
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operspy_who(struct Client *client_p, int parc, char *parv[]) |
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{ |
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char *mask = parc > 2 ? parv[2] : NULL; |
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int server_oper = parc > 3 ? (*parv[3] == 'o') : 0; |
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struct Channel *chptr_who = NULL; |
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struct Client *target_p_who = NULL; |
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|
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if (mask != NULL) |
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{ |
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collapse(mask); |
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|
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if (*mask == '\0') |
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{ |
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sendto_one(client_p, form_str(RPL_ENDOFWHO), |
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me.name, client_p->name, "*"); |
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return; |
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} |
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} |
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else |
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{ |
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "WHO", "*"); |
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#endif |
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who_global(client_p, NULL, server_oper); |
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sendto_one(client_p, form_str(RPL_ENDOFWHO), |
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me.name, client_p->name, "*"); |
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return; |
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} |
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|
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/* /who #channel */ |
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if (IsChanPrefix(*mask)) |
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{ |
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if ((chptr_who = hash_find_channel(mask)) != NULL) |
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{ |
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#ifdef OPERSPY_LOG |
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operspy_log(client_p, "WHO", mask); |
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#endif |
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do_who_on_channel(client_p, chptr_who, chptr_who->chname); |
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} |
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|
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sendto_one(client_p, form_str(RPL_ENDOFWHO), |
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me.name, client_p->name, mask); |
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return; |
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} |
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|
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/* /who nick */ |
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if ((target_p_who = find_person(client_p, mask)) != NULL) |
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{ |
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#ifdef OPERSPY_LOG |
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/* "nick!user@host server\0" */ |
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char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1]; |
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|
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ircsprintf(nuh, "%s!%s@%s %s", target_p_who->name, |
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target_p_who->username, target_p_who->host, |
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target_p_who->servptr->name); |
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operspy_log(client_p, "WHO", nuh); |
| 382 |
#endif |
| 383 |
|
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if (target_p_who->channel.head != NULL) |
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{ |
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chptr_who = |
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((struct Membership *)target_p_who->channel.head->data)->chptr; |
| 388 |
|
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do_who(client_p, target_p_who, chptr_who->chname, |
| 390 |
get_member_status(target_p_who->channel.head->data, NO)); |
| 391 |
} |
| 392 |
else |
| 393 |
{ |
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do_who(client_p, target_p_who, NULL, ""); |
| 395 |
} |
| 396 |
|
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sendto_one(client_p, form_str(RPL_ENDOFWHO), |
| 398 |
me.name, client_p->name, mask); |
| 399 |
return; |
| 400 |
} |
| 401 |
|
| 402 |
#ifdef OPERSPY_LOG |
| 403 |
operspy_log(client_p, "WHO", parv[2]); |
| 404 |
#endif |
| 405 |
|
| 406 |
/* /who 0 */ |
| 407 |
if ((*(mask + 1) == '\0') && (*mask == '0')) |
| 408 |
who_global(client_p, NULL, server_oper); |
| 409 |
else |
| 410 |
who_global(client_p, mask, server_oper); |
| 411 |
|
| 412 |
/* nothing else? end of /who. */ |
| 413 |
sendto_one(client_p, form_str(RPL_ENDOFWHO), |
| 414 |
me.name, client_p->name, mask); |
| 415 |
} |
| 416 |
|
| 417 |
static void |
| 418 |
operspy_whois(struct Client *client_p, int parc, char *parv[]) |
| 419 |
{ |
| 420 |
const dlink_node *lp; |
| 421 |
struct Channel *chptr_whois = NULL; |
| 422 |
struct Client *a2client_p; |
| 423 |
struct Client *target_p = NULL; |
| 424 |
char buf[IRCD_BUFSIZE]; |
| 425 |
#ifdef OPERSPY_LOG |
| 426 |
/* "nick!user@host server\0" */ |
| 427 |
char nuh[NICKLEN + 1 + USERLEN + 1 + HOSTLEN + 1 + HOSTLEN + 1]; |
| 428 |
#endif |
| 429 |
char *t = NULL; |
| 430 |
int mlen, tlen; |
| 431 |
int cur_len = 0; |
| 432 |
int reply_to_send = NO; |
| 433 |
|
| 434 |
if (strchr(parv[2], '?') || strchr(parv[2], '*')) |
| 435 |
{ |
| 436 |
sendto_one(client_p, ":%s NOTICE %s :Do not use wildcards with this.", |
| 437 |
me.name, client_p->name); |
| 438 |
return; |
| 439 |
} |
| 440 |
|
| 441 |
if ((target_p = find_person(client_p, parv[2])) == NULL) |
| 442 |
{ |
| 443 |
sendto_one(client_p, form_str(ERR_NOSUCHNICK), |
| 444 |
me.name, client_p->name, parv[2]); |
| 445 |
return; |
| 446 |
} |
| 447 |
|
| 448 |
#ifdef OPERSPY_LOG |
| 449 |
ircsprintf(nuh, "%s!%s@%s %s", |
| 450 |
target_p->name, target_p->username, target_p->host, |
| 451 |
target_p->servptr->name); |
| 452 |
operspy_log(client_p, "WHOIS", nuh); |
| 453 |
#endif |
| 454 |
|
| 455 |
a2client_p = target_p->servptr; |
| 456 |
|
| 457 |
sendto_one(client_p, form_str(RPL_WHOISUSER), me.name, |
| 458 |
client_p->name, target_p->name, target_p->username, |
| 459 |
target_p->host, target_p->info); |
| 460 |
mlen = ircsprintf(buf, form_str(RPL_WHOISCHANNELS), me.name, |
| 461 |
client_p->name, target_p->name, ""); |
| 462 |
cur_len = mlen; |
| 463 |
t = buf + mlen; |
| 464 |
|
| 465 |
DLINK_FOREACH(lp, target_p->channel.head) |
| 466 |
{ |
| 467 |
chptr_whois = ((struct Membership *)lp->data)->chptr; |
| 468 |
|
| 469 |
if ((cur_len + strlen(chptr_whois->chname) + 2) > (IRCD_BUFSIZE - 4)) |
| 470 |
{ |
| 471 |
sendto_one(client_p, "%s", buf); |
| 472 |
cur_len = mlen; |
| 473 |
t = buf + mlen; |
| 474 |
} |
| 475 |
|
| 476 |
tlen = ircsprintf(t, "%s%s%s ", |
| 477 |
ShowChannel(client_p, chptr_whois) ? "" : "%", |
| 478 |
get_member_status((struct Membership *)lp->data, YES), |
| 479 |
chptr_whois->chname); |
| 480 |
t += tlen; |
| 481 |
cur_len += tlen; |
| 482 |
reply_to_send = YES; |
| 483 |
} |
| 484 |
|
| 485 |
if (reply_to_send == YES) |
| 486 |
sendto_one(client_p, "%s", buf); |
| 487 |
|
| 488 |
sendto_one(client_p, form_str(RPL_WHOISSERVER), me.name, |
| 489 |
client_p->name, target_p->name, a2client_p->name, |
| 490 |
a2client_p->info); |
| 491 |
|
| 492 |
if (IsOper(target_p)) |
| 493 |
sendto_one(client_p, form_str(IsAdmin(target_p) ? RPL_WHOISADMIN : |
| 494 |
RPL_WHOISOPERATOR), me.name, client_p->name, target_p->name); |
| 495 |
|
| 496 |
if (MyConnect(target_p)) |
| 497 |
sendto_one(client_p, form_str(RPL_WHOISIDLE), me.name, |
| 498 |
client_p->name, target_p->name, CurrentTime - target_p->localClient->last, |
| 499 |
target_p->firsttime); |
| 500 |
sendto_one(client_p, form_str(RPL_ENDOFWHOIS), |
| 501 |
me.name, client_p->name, parv[2]); |
| 502 |
} |
| 503 |
|
| 504 |
/* extensions for OPERSPY WHO */ |
| 505 |
static void |
| 506 |
do_who(struct Client *source_p, struct Client *target_p, |
| 507 |
char *chname, const char *op_flags) |
| 508 |
{ |
| 509 |
char status[8]; |
| 510 |
|
| 511 |
ircsprintf(status, "%c%s%s", target_p->away ? 'G' : 'H', |
| 512 |
IsOper(target_p) ? "*" : "", op_flags); |
| 513 |
sendto_one(source_p, form_str(RPL_WHOREPLY), me.name, source_p->name, |
| 514 |
(chname) ? (chname) : "*", |
| 515 |
target_p->username, |
| 516 |
target_p->host, target_p->servptr->name, target_p->name, |
| 517 |
status, target_p->hopcount, target_p->info); |
| 518 |
} |
| 519 |
|
| 520 |
static void |
| 521 |
who_global(struct Client *source_p, char *mask, int server_oper) |
| 522 |
{ |
| 523 |
struct Client *target_p; |
| 524 |
dlink_node *lp; |
| 525 |
int maxmatches = 500; |
| 526 |
|
| 527 |
/* list all matching visible clients */ |
| 528 |
DLINK_FOREACH(lp, global_client_list.head) |
| 529 |
{ |
| 530 |
target_p = lp->data; |
| 531 |
|
| 532 |
if (!IsClient(target_p)) |
| 533 |
continue; |
| 534 |
|
| 535 |
if (server_oper && !IsOper(target_p)) |
| 536 |
continue; |
| 537 |
|
| 538 |
if (!mask || |
| 539 |
match(mask, target_p->name) || match(mask, target_p->username) || |
| 540 |
match(mask, target_p->host) || match(mask, target_p->servptr->name) || |
| 541 |
match(mask, target_p->info) || |
| 542 |
(MyClient(target_p) && match(mask, target_p->sockhost))) |
| 543 |
{ |
| 544 |
if (dlink_list_length(&target_p->channel)) |
| 545 |
{ |
| 546 |
struct Channel *chptr; |
| 547 |
static char fl[5]; |
| 548 |
|
| 549 |
chptr = ((struct Membership *)(target_p->channel.head->data))->chptr; |
| 550 |
snprintf(fl, sizeof(fl), "%s", |
| 551 |
get_member_status((struct Membership *)(target_p->channel.head->data), NO)); |
| 552 |
|
| 553 |
do_who(source_p, target_p, chptr->chname, fl); |
| 554 |
} |
| 555 |
else |
| 556 |
do_who(source_p, target_p, NULL, ""); |
| 557 |
|
| 558 |
if (maxmatches > 0) |
| 559 |
{ |
| 560 |
if (--maxmatches == 0) |
| 561 |
return; |
| 562 |
} |
| 563 |
} |
| 564 |
} |
| 565 |
} |
| 566 |
|
| 567 |
static void |
| 568 |
do_who_on_channel(struct Client *source_p, struct Channel *chptr, |
| 569 |
char *chname) |
| 570 |
{ |
| 571 |
dlink_node *ptr; |
| 572 |
struct Membership *ms; |
| 573 |
|
| 574 |
DLINK_FOREACH(ptr, chptr->members.head) |
| 575 |
{ |
| 576 |
ms = ptr->data; |
| 577 |
do_who(source_p, ms->client_p, chname, get_member_status(ms, NO)); |
| 578 |
} |
| 579 |
} |
| 580 |
|
| 581 |
#ifdef OPERSPY_LOG |
| 582 |
static void |
| 583 |
operspy_log(struct Client *source_p, const char *command, const char *target) |
| 584 |
{ |
| 585 |
#ifdef OPERSPY_LOGFILE |
| 586 |
size_t nbytes = 0; |
| 587 |
FBFILE *operspy_fb; |
| 588 |
const char *opername = source_p->name; |
| 589 |
char linebuf[IRCD_BUFSIZE], logfile[IRCD_BUFSIZE]; |
| 590 |
#endif |
| 591 |
|
| 592 |
assert(source_p != NULL); |
| 593 |
|
| 594 |
#ifdef OPERSPY_LOGFILE |
| 595 |
if (IsOper(source_p) && MyClient(source_p)) |
| 596 |
opername = source_p->localClient->auth_oper; |
| 597 |
else if (!MyClient(source_p)) |
| 598 |
opername = "remote"; |
| 599 |
|
| 600 |
ircsprintf(logfile, "%s/operspy.%s.log", LOGPATH, opername); |
| 601 |
if ((operspy_fb = fbopen(logfile, "a")) == NULL) |
| 602 |
return; |
| 603 |
|
| 604 |
nbytes = ircsprintf(linebuf, "[%s] OPERSPY %s %s %s\n", |
| 605 |
smalldate(CurrentTime), |
| 606 |
get_oper_name(source_p), |
| 607 |
command, target); |
| 608 |
fbputs(linebuf, operspy_fb, nbytes); |
| 609 |
fbclose(operspy_fb); |
| 610 |
#endif |
| 611 |
|
| 612 |
#ifdef OPERSPY_NOTICE |
| 613 |
sendto_realops_flags(UMODE_SPY, L_ALL, "OPERSPY %s %s %s", |
| 614 |
get_oper_name(source_p), command, target); |
| 615 |
#endif |
| 616 |
|
| 617 |
if (MyClient(source_p)) |
| 618 |
sendto_match_servs(source_p, "*", CAP_ENCAP, "ENCAP * OPERSPY %s :%s", |
| 619 |
command, target); |
| 620 |
} |
| 621 |
#endif /* OPERSPY_LOG */ |
