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/*
 * =================================================================
 * Filename:          m_ircops.c
 * Description:       Command /ircops.
 * Author:            AngryWolf <angrywolf@flashmail.com>
 * Documentation:     m_ircops.txt (comes with the package)
 * =================================================================
 */

#include "config.h"
#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include <time.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#endif
#include <fcntl.h>
#include "h.h"
#ifdef STRIPBADWORDS
#include "badwords.h"
#endif
#ifdef _WIN32
#include "version.h"
#endif

typedef struct
{
  long *umode;
  char *text;
} oflag;


extern void      sendto_one(aClient *to, char *pattern, ...);

/*
 * Ultimate uses numerics 386 and 387 for RPL_IRCOPS and RPL_ENDOFIRCOPS,
 * but these numerics are RPL_QLIST and RPL_ENDOFQLIST in UnrealIRCd
 * (numeric conflict). I had to choose other numerics.
 */

#define RPL_IRCOPS    337
#define RPL_ENDOFIRCOPS    338
#define MSG_IRCOPS     "IRCOPS"
#define TOK_IRCOPS     NULL
#define IsAway(x)    (x)->user->away
#define IsSkoAdmin(sptr)  (IsAdmin(sptr) || IsNetAdmin(sptr) || IsSAdmin(sptr) || IsCoAdmin(sptr))
#define DelCommand(x)    if (x) CommandDel(x); x = NULL

static int      m_ircops(aClient *cptr, aClient *sptr, int parc, char *parv[]);

static Command      *CmdIrcops;
static oflag      otypes[7];

ModuleHeader MOD_HEADER(m_ircops)
  = {
  "ircops",
  "$Id: m_ircops.c,v 3.2 2004/07/11 23:39:48 angrywolf Exp $",
  "command /ircops",
  "3.2-b8-1",
  NULL
    };


DLLFUNC int MOD_INIT(m_ircops)(ModuleInfo *modinfo)
{
  otypes[0].umode = &UMODE_NETADMIN;
  otypes[0].text = "a Network Administrator";
  otypes[1].umode = &UMODE_SADMIN;
  otypes[1].text = "a Services Administrator";
  otypes[2].umode = &UMODE_ADMIN;
  otypes[2].text = "a Server Administrator";
  otypes[3].umode = &UMODE_COADMIN;
  otypes[3].text = "a Co Administrator";
  otypes[4].umode = &UMODE_OPER;
  otypes[4].text = "an IRC Operator";
  otypes[5].umode = &UMODE_LOCOP;
  otypes[5].text = "a Local Operator";
  otypes[6].umode = NULL;
  otypes[6].text = NULL;

        if (CommandExists(MSG_IRCOPS))
        {
                config_error("Command " MSG_IRCOPS " already exists");
                return MOD_FAILED;
        }

        CmdIrcops = CommandAdd(modinfo->handle, MSG_IRCOPS, TOK_IRCOPS,
    m_ircops, MAXPARA, 0);

#ifndef STATIC_LINKING
        if (ModuleGetError(modinfo->handle) != MODERR_NOERROR)
#else
        if (!CmdIrcops)
#endif
        {
#ifndef STATIC_LINKING
                config_error("Error adding command " MSG_IRCOPS ": %s",
                        ModuleGetErrorStr(modinfo->handle));
#else
                config_error("Error adding command " MSG_IRCOPS);
#endif
                return MOD_FAILED;
        }

  return MOD_SUCCESS;
}

DLLFUNC int MOD_LOAD(m_ircops)(int module_load)
{
  return MOD_SUCCESS;
}


DLLFUNC int MOD_UNLOAD(m_ircops)(int module_unload)
{
  DelCommand(CmdIrcops);
  return MOD_SUCCESS;
}


static char *find_otype(long umodes)
{
  unsigned int i;

  for (i = 0; otypes[i].umode; i++)
    if (*otypes[i].umode & umodes)
      return otypes[i].text;

  return "an unknown operator";
}

/*
 * m_ircops
 *
 *     parv[0]: sender prefix
 *
 *     Originally comes from TR-IRCD, but I changed it in several places.
 *     In addition, I didn't like to display network name. In addition,
 *     instead of realname, servername is shown. See the original
 *     header below.
 */

/************************************************************************
 * IRC - Internet Relay Chat, modules/m_ircops.c
 *
 *   Copyright (C) 2000-2002 TR-IRCD Development
 *
 *   Copyright (C) 1990 Jarkko Oikarinen and
 *                      University of Oulu, Co Center
 *
 * 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, 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.
 */

static int m_ircops(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
  aClient    *acptr;
  char    buf[BUFSIZE];
  int    opers = 0, admins = 0, globs = 0, aways = 0;

  for (acptr = client; acptr; acptr = acptr->next)
  {
    /* List only real IRC Operators */
    if (IsULine(acptr) || !IsPerson(acptr) || !IsAnOper(acptr))
      continue;
    /* Don't list +H users */
    if (!IsAnOper(sptr) && IsHideOper(acptr))
      continue;

    sendto_one(sptr, ":%s %d %s :\2%s\2 is %s on %s" "%s",
      me.name, RPL_IRCOPS, sptr->name,
      acptr->name,
      find_otype(acptr->umodes),
      acptr->user->server,
      (IsAway(acptr) ? " [Away]" : IsHelpOp(acptr) ? " [Online]" : ""));

    if (IsAway(acptr))
      aways++;
    else if (IsSkoAdmin(acptr))
      admins++;
    else
      opers++;

  }

  globs = opers + admins + aways;

  sprintf(buf,
    "Total: \2%d\2 IRCOP%s online - \2%d\2 Admin%s, \2%d\2 Oper%s and \2%d\2 Away",
    globs, (globs) > 1 ? "s" : "", admins, admins > 1 ? "s" : "",
    opers, opers > 1 ? "s" : "", aways);

  sendto_one(sptr, ":%s %d %s :%s", me.name, RPL_IRCOPS, sptr->name, buf);
  sendto_one(sptr, ":%s %d %s :End of /IRCOPS list", me.name, RPL_ENDOFIRCOPS, sptr->name);

  return 0;
}