--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/m_stats.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 "client.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 "s_stats.h"
+#include "s_user.h"
+#include "send.h"
+#include "struct.h"
+
+/* #include <assert.h> -- Now using assert in ircd_log.h */
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * m_stats - generic message handler
+ *
+ * parv[0] = sender prefix
+ * parv[1] = statistics selector
+ * parv[2] = target server (current server defaulted, if omitted)
+ * And 'stats l' and 'stats' L:
+ * parv[3] = server mask ("*" default, if omitted)
+ * Or for stats p,P:
+ * parv[3] = port mask (returns p-lines when its port is matched by this)
+ * Or for stats k,K,i and I:
+ * parv[3] = [user@]host.name (returns which K/I-lines match this)
+ * or [user@]host.mask (returns which K/I-lines are mmatched by this)
+ * (defaults to old reply if omitted, when local or Oper)
+ * A remote mask (something containing wildcards) is only
+ * allowed for IRC Operators.
+ */
+int
+m_stats(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
+{
+ const struct StatDesc *sd;
+ char *param;
+
+ /* If we didn't find a descriptor, send them help */
+ if ((parc < 2) || !(sd = stats_find(parv[1])))
+ parv[1] = "*", sd = stats_find("*");
+
+ assert(sd != 0);
+
+ /* Check whether the client can issue this command. If source is
+ * not privileged (server or an operator), then the STAT_FLAG_OPERONLY
+ * flag must not be set, and if the STAT_FLAG_OPERFEAT flag is set,
+ * then the feature given by sd->sd_control must be off.
+ *
+ * This checks cptr rather than sptr so that a local oper may send
+ * /stats queries to other servers.
+ */
+ if (!IsPrivileged(cptr) &&
+ ((sd->sd_flags & STAT_FLAG_OPERONLY) ||
+ ((sd->sd_flags & STAT_FLAG_OPERFEAT) && feature_bool(sd->sd_control))))
+ return send_reply(sptr, ERR_NOPRIVILEGES);
+
+ /* Check for extra parameter */
+ if ((sd->sd_flags & STAT_FLAG_VARPARAM) && parc > 3 && !EmptyString(parv[3]))
+ param = parv[3];
+ else
+ param = NULL;
+
+ /* Ok, track down who's supposed to get this... */
+ if (hunt_server_cmd(sptr, CMD_STATS, cptr, feature_int(FEAT_HIS_REMOTE),
+ param ? "%s %C :%s" : "%s :%C", 2, parc, parv) !=
+ HUNTED_ISME)
+ return 0; /* Someone else--cool :) */
+
+ /* Check if they are a local user */
+ if ((sd->sd_flags & STAT_FLAG_LOCONLY) && !MyUser(sptr))
+ return send_reply(sptr, ERR_NOPRIVILEGES);
+
+ assert(sd->sd_func != 0);
+
+ /* Ok, dispatch the stats function */
+ (*sd->sd_func)(sptr, sd, param);
+
+ /* Done sending them the stats */
+ return send_reply(sptr, RPL_ENDOFSTATS, parv[1]);
+}
projects / ircu2.10.12-pk.git / blobdiff