mirror of
https://github.com/matrix-construct/construct
synced 2024-11-04 12:58:53 +01:00
3c7d6fcce7
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_svinfo.c: Sends TS information for clock & compatibility checks.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox 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 2 of the License, or
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* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "common.h"
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#include "match.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "send.h"
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#include "s_conf.h"
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#include "s_newconf.h"
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#include "logger.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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static const char svinfo_desc[] =
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"Provides TS6 SVINFO command to ensure version and clock synchronisation";
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static void ms_svinfo(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message svinfo_msgtab = {
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"SVINFO", 0, 0, 0, 0,
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{mg_unreg, mg_ignore, mg_ignore, {ms_svinfo, 5}, mg_ignore, mg_ignore}
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};
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mapi_clist_av1 svinfo_clist[] = { &svinfo_msgtab, NULL };
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DECLARE_MODULE_AV2(svinfo, NULL, NULL, svinfo_clist, NULL, NULL, NULL, NULL, svinfo_desc);
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/*
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* ms_svinfo - SVINFO message handler
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* parv[1] = TS_CURRENT for the server
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* parv[2] = TS_MIN for the server
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* parv[3] = unused, send 0
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* parv[4] = server's idea of UTC time
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*/
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static void
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ms_svinfo(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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signed long deltat;
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time_t theirtime;
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char squitreason[120];
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/* SVINFO isnt remote. */
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if(source_p != client_p)
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return;
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if(TS_CURRENT < atoi(parv[2]) || atoi(parv[1]) < TS_MIN)
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{
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/* TS version is too low on one of the sides, drop the link */
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"Link %s dropped, wrong TS protocol version (%s,%s)",
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source_p->name, parv[1], parv[2]);
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snprintf(squitreason, sizeof squitreason, "Incompatible TS version (%s,%s)",
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parv[1], parv[2]);
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exit_client(source_p, source_p, source_p, squitreason);
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return;
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}
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/*
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* since we're here, might as well set rb_current_time() while we're at it
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*/
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rb_set_time();
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theirtime = atol(parv[4]);
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deltat = labs(theirtime - rb_current_time());
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if(deltat > ConfigFileEntry.ts_max_delta)
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"Link %s dropped, excessive TS delta"
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" (my TS=%ld, their TS=%ld, delta=%ld)",
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source_p->name,
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(long) rb_current_time(), (long) theirtime, deltat);
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ilog(L_SERVER,
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"Link %s dropped, excessive TS delta"
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" (my TS=%ld, their TS=%ld, delta=%ld)",
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log_client_name(source_p, SHOW_IP), (long) rb_current_time(), (long) theirtime, deltat);
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snprintf(squitreason, sizeof squitreason, "Excessive TS delta (my TS=%ld, their TS=%ld, delta=%ld)",
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(long) rb_current_time(), (long) theirtime, deltat);
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disable_server_conf_autoconn(source_p->name);
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exit_client(source_p, source_p, source_p, squitreason);
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return;
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}
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if(deltat > ConfigFileEntry.ts_warn_delta)
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{
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sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
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"Link %s notable TS delta"
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" (my TS=%ld, their TS=%ld, delta=%ld)",
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source_p->name, (long) rb_current_time(), (long) theirtime, deltat);
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}
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}
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