/*
 *  NeoIRCd: NeoStats Group. Based on Hybird7
 *  m_version.c: Shows ircd version information.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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 2 of the License, 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id: m_version.c,v 1.5 2002/09/13 06:50:07 fishwaldo Exp $
 */

#include <stdinc.h>
#include "handlers.h"
#include "client.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "s_user.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"

static char* confopts(struct Client *source_p);

static void m_version(struct Client*, struct Client*, int, char**);
static void ms_version(struct Client*, struct Client*, int, char**);
static void mo_version(struct Client*, struct Client*, int, char**);

struct Message version_msgtab = {
  "VERSION", 0, 0, 0, 0, MFLG_SLOW, 0,
  {m_unregistered, m_version, ms_version, mo_version}
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&version_msgtab);
}

void
_moddeinit(void)
{
  mod_del_cmd(&version_msgtab);
}

const char *_version = "$Revision: 1.5 $";
#endif
/*
 * m_version - VERSION command handler
 *      parv[0] = sender prefix
 *      parv[1] = remote server
 */
static void m_version(struct Client* client_p, struct Client* source_p,
                      int parc, char* parv[])
{
  static time_t last_used=0L;

  if((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
  {
    /* safe enough to give this on a local connect only */
    sendto_one(source_p,form_str(RPL_LOAD2HI),me.name,parv[0]);
    return;
  }
  else
  {
    last_used = CurrentTime;
  }
 
  if (!ConfigServerHide.disable_remote)
  {
    if (hunt_server(client_p, source_p, ":%s VERSION :%s",
                    1, parc, parv) != HUNTED_ISME)
      return;
  }
  
  sendto_one(source_p, form_str(RPL_VERSION), me.name,
                parv[0], ircd_version, serno, debugmode,
                me.name, confopts(source_p), serveropts);
                
  show_isupport(source_p);
}

/*
 * mo_version - VERSION command handler
 *      parv[0] = sender prefix
 *      parv[1] = remote server
 */
static void mo_version(struct Client* client_p, struct Client* source_p,
                      int parc, char* parv[])
{
  
  if (hunt_server(client_p, source_p, ":%s VERSION :%s", 
		  1, parc, parv) != HUNTED_ISME)
    return;
    
  sendto_one(source_p, form_str(RPL_VERSION), me.name, parv[0], ircd_version, 
  	     serno, debugmode, me.name, confopts(source_p), serveropts);
	       
  show_isupport(source_p);
  
  return;
}

/*
 * ms_version - VERSION command handler
 *      parv[0] = sender prefix
 *      parv[1] = remote server
 */
static void ms_version(struct Client* client_p, struct Client* source_p,
                      int parc, char* parv[])
{
  if (hunt_server(client_p, source_p, ":%s VERSION :%s", 
                  1, parc, parv) == HUNTED_ISME)
  {
    sendto_one(source_p, form_str(RPL_VERSION), me.name,
               parv[0], ircd_version, serno, debugmode,
               me.name, confopts(source_p), serveropts);
    show_isupport(source_p);
  }

  return;
}

/* confopts()
 * input  - client pointer
 * output - ircd.conf option string
 * side effects - none
 */
static char* confopts(struct Client *source_p)
{
  static char result[15];
  char *p;
  
  result[0] = '\0';
  p = result;

#ifdef DEBUGMODE
  *p++ = 'D';
#endif

  if (ConfigFileEntry.glines)
    *p++ = 'g';
    *p++ = 'G';

  /* might wanna hide this :P */
  if (ServerInfo.hub && 
      (!ConfigServerHide.disable_remote || IsOper(source_p)) )
    {
      *p++ = 'H';
    }

  *p++ = 'M';

#ifdef CRYPT_OPER_PASSWORD
  *p++ = 'p';
#endif

#ifdef IGNORE_BOGUS_TS
  *p++ = 'T';
#endif

#ifdef USE_SYSLOG
  *p++ = 'Y';
#endif

#ifdef HAVE_LIBZ
  *p++ = 'Z';
#endif

#ifdef IPV6
  *p++ = '6';
#endif
  
  *p = '\0';

  return result;
}