Namen ändern?

if(strcmp(cmd,"/umbenennen",true) == 0)
	{
	    if(PlayerInfo[playerid][pAdmin] >= 4)
	    {
		    tmp = strtok(cmdtext,idx);
		    if(!strlen(tmp))
		    {
		        SendClientMessage(playerid,COLOR_WHITE,"NUTZUNG: /umbennen [playerid/name] [neuer name]    Achtung! Maximale Länge: 16 Zeichen");
		        return 1;
			}
			giveplayerid = ReturnUser(tmp);
			if(!IsPlayerConnected(giveplayerid))
		    {
		        SendClientMessage(playerid,COLOR_WHITE," Spieler ist nicht Online!");
		        return 1;
			}
			new length = strlen(cmdtext);
			while ((idx < length) && (cmdtext[idx] <= ' '))
			{
				idx++;
			}
			new offset = idx;
			new result[64];
			while ((idx < length) && ((idx - offset) < (sizeof(result) - 1)))
			{
				result[idx - offset] = cmdtext[idx];
				idx++;
			}
			result[idx - offset] = EOS;
			if(strlen(result) < 1 || strlen(result) > 16)
		    {
		        SendClientMessage(playerid,COLOR_WHITE,"NUTZUNG: /umbennen [playerid/name] [neuer name]  ");
		        return 1;
			}
			GetPlayerName(playerid, sendername, sizeof(sendername));
			GetPlayerName(giveplayerid, giveplayer, sizeof(giveplayer));
			format(string,sizeof(string),"/Accounts/%s.ini",giveplayer);
			fremove(string);
			format(string,sizeof(string)," AdmCmd: %s hat %s in %s umbenannt!",sendername,giveplayer,result);
			ABroadCast(COLOR_LIGHTRED,string,1);
			format(string,sizeof(string)," Admin %s hat dich in %s umbenannt!",sendername,result);
			SendClientMessage(playerid,COLOR_YELLOW,string);
			SetPlayerName(giveplayerid,result);
			OnPlayerUpdate(giveplayerid);
		}
		return 1;
	}