m_chgnick.c ( Komut Sistemi ile Nick Değiştirme )

#include "macros.h"
#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"
#include "proto.h"
#ifdef STRIPBADWORDS
#include "badwords.h"
#endif
#ifdef _WIN32
#include "version.h"
#endif

#define MSG_CHGNICK 	"CHGNICK"
#define TOK_CHGNICK 	"YZ"

DLLFUNC int m_chgnick(aClient *cptr, aClient *sptr, int parc, char *parv[]);


ModuleHeader MOD_HEADER(m_chgident)
  = {
	"chgnick",	/* Name of module */
	"$Id$", /* Version */
	"/change nicknames", /* Short description of module */
	"3.2-b8-1",
	NULL 
    };

DLLFUNC int MOD_INIT(m_chgnick)(ModuleInfo *modinfo)
{
	/* extern variable to export m_chgident_info to temporary
           ModuleHeader *modulebuffer;
	   the module_load() will use this to add to the modules linked 
	   list
	*/
	/*
	 * We call our add_Command crap here
	*/
	add_Command(MSG_CHGNICK, TOK_CHGNICK, m_chgnick, MAXPARA);
	MARK_AS_OFFICIAL_MODULE(modinfo);
	return MOD_SUCCESS;
}

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

DLLFUNC int MOD_UNLOAD(m_chgnick)(int module_unload)
{
	if (del_Command(MSG_CHGNICK, TOK_CHGNICK, m_chgnick) < 0)
	{
		sendto_realops("Failed to delete commands when unloading %s",
				MOD_HEADER(m_chgnick).name);
	}
	return MOD_SUCCESS;
}

/* 
 * m_chgident - 12/07/1999 (two months after I made SETIDENT) - Stskeeps
 * :prefix CHGIDENT <nick> <new identname>
 * parv[0] - sender
 * parv[1] - nickname
 * parv[2] - identname
 *
*/

int m_chgnick(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
aClient *acptr;
aClient *ocptr;
char *s;
int  legalident = 1;

	if (MyClient(sptr) && !IsAnOper(sptr))
	{
		sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name, parv[0]);
		return 0;
	}


#ifdef DISABLE_USERMOD
	if (MyClient(sptr))
	{
		sendto_one(sptr, err_str(ERR_DISABLED), me.name, sptr->name, "CHGNICK",
			"This command is disabled on this server");
		return 0;
	}
#endif

	if ((parc < 3) || !*parv[2])
	{
		sendto_one(sptr, err_str(ERR_NEEDMOREPARAMS), me.name, sptr->name, "CHGNICK");
		return 0;
	}

	if (strlen(parv[2]) > (USERLEN))
	{
		sendnotice(sptr, "*** ChgNick Error: Requested ident too long -- rejected.");
		return 0;
	}

	/* illegal?! */
	for (s = parv[2]; *s; s++)
	{
		if ((*s == '~') && (s == parv[2]))
			continue;
		if (!isallowed(*s))
		{
			legalident = 0;
		}
	}

	if (legalident == 0)
	{
		sendnotice(sptr, "*** /ChgNick Error: A ident may contain a-z, A-Z, 0-9, '-' & '.' - Please only use them");
		return 0;
	}

	if ((acptr = find_person(parv[1], NULL)))
	{
		DYN_LOCAL(char, did_parts, acptr->user->joined);
		if (MyClient(sptr) && (IsLocOp(sptr) && !MyClient(acptr)))
		{
			sendto_one(sptr, err_str(ERR_NOPRIVILEGES), me.name,
				parv[0]);
			DYN_FREE(did_parts);
			return 0;
		}

		switch (UHOST_ALLOWED)
		{
			case UHALLOW_NEVER:
				if (MyClient(sptr))
				{
					sendto_one(sptr, err_str(ERR_DISABLED), me.name, sptr->name, "CHGNICK",
						"This command is disabled on this server");
					DYN_FREE(did_parts);
					return 0;
				}
				break;
			case UHALLOW_ALWAYS:
				break;
			case UHALLOW_NOCHANS:
				if (IsPerson(acptr) && MyClient(sptr) && acptr->user->joined)
				{
					sendnotice(sptr, "*** /ChgNick can not be used while %s is on a channel", acptr->name);
					DYN_FREE(did_parts);
					return 0;
				}
				break;
			case UHALLOW_REJOIN:
				rejoin_doparts(acptr, did_parts);
				/* join sent later when the ident has been changed */
				break;
		}
		if (!IsULine(sptr))
		{
			sendto_snomask(SNO_EYES,
			    "%s changed the virtual nick of %s (%s@%s) to be %s",
			    sptr->name, acptr->name, acptr->user->username,
			    GetHost(acptr), parv[2]);
			/* Logging ability added by XeRXeS */
			ircd_log(LOG_CHGCMDS,
				"CHGIDENT: %s changed the virtual nick of %s (%s@%s) to be %s",
				sptr->name, acptr->name, acptr->user->username,    
				GetHost(acptr), parv[2]);
		}
		if ((ocptr = find_client(parv[2], NULL))) /* Collision */
        	{
			sendnotice(sptr,"***/ChgNick failed -- nick collision",acptr->name);
			return 0;
		}

		sendto_serv_butone_token(cptr, sptr->name,
		    MSG_CHGNICK,
		    TOK_CHGNICK, "%s %s", acptr->name, parv[2]);
		//acptr->lastnick = TS2ts(parv[3]);
	do_nick_name(parv[2]);
        sendto_common_channels(acptr, ":%s NICK :%s", parv[1], parv[2]);
        add_history(acptr, 1);

        (void)del_from_client_hash_table(acptr->name, acptr);
        hash_check_watch(acptr, RPL_LOGOFF);

        sendto_snomask(SNO_NICKCHANGE,
                "*** Notice -- %s (%s@%s) has been forced to change his/her nickname to %s",
                acptr->name, acptr->user->username, acptr->user->realhost, parv[2]);
        RunHook2(HOOKTYPE_LOCAL_NICKCHANGE, acptr, parv[2]);

        strlcpy(acptr->name, parv[2], sizeof acptr->name);
        add_to_client_hash_table(parv[2], acptr);
        hash_check_watch(acptr, RPL_LOGON);
		return 0;
	}
	else
	{
		sendto_one(sptr, err_str(ERR_NOSUCHNICK), me.name, sptr->name,
		    parv[1]);
		return 0;
	}
	return 0;
}