Need some help with a player housing snippet...

bool set_house( CHAR_DATA *ch, int vnum, bool apartment)
{
   HOME_DATA *tmphome, *shome = NULL;
   char buf[MAX_STRING_LENGTH];
   ROOM_INDEX_DATA *location=NULL;
   EXIT_DATA *pexit=NULL;
   OBJ_INDEX_DATA *obj, *key = NULL;

   if (!ch || !ch->name || vnum <= 0)
	   return FALSE;

    CREATE(tmphome, HOME_DATA, 1);

	tmphome->name = STRALLOC(ch->name);
	tmphome->apartment = apartment;
	tmphome->vnum[0] = vnum;

	if (first_home)
	{
		bool found = FALSE;

		for ( shome = first_home; shome; shome = shome->next )
		{
			if ( strcmp(tmphome->name, shome->name) < 0 )
			{
				INSERT( tmphome, shome, first_home, next, prev );
				found = TRUE;
				break;
			}
		}

		if (!found)
			LINK( tmphome, first_home, last_home, next, prev );
	}
	else
	{
		LINK( tmphome, first_home, last_home, next, prev );
	}

	update_house_list();
	fwrite_house(tmphome);

	if ((location = get_room_index(vnum)) == NULL)
		return FALSE;

        if (apartment)
		sprintf( buf, "%s's Apartment", tmphome->name);
	else
		sprintf( buf, "%s's House", tmphome->name);

	STRFREE( location->name );
	location->name = STRALLOC( buf );
	STRFREE( location->description );
	if (apartment)
	    location->description = STRALLOC( "A room surrounds you, filled with the dirt and filth of previous tenants.\n\rA spray painted frame of the last tenant can be seen on the floor in a \n\rfar corner.\n\r");
	else
	    location->description = STRALLOC( "This is your desc. You can edit this with HOUSE DESC.\n\r");

	location->sector_type = 0;

#ifndef EXTENDED_ROOMS
        SET_BIT( location->room_flags, ROOM_NO_SUMMON );
        SET_BIT( location->room_flags, ROOM_NO_ASTRAL );
        SET_BIT( location->room_flags, ROOM_INDOORS );
        SET_BIT( location->room_flags, ROOM_SAFE );
#else
        xSET_BIT( location->room_flags, ROOM_NO_SUMMON );
        xSET_BIT( location->room_flags, ROOM_NO_ASTRAL );
        xSET_BIT( location->room_flags, ROOM_INDOORS );
        xSET_BIT( location->room_flags, ROOM_SAFE );
#endif

	for ( pexit = location->first_exit; pexit; pexit = pexit->next )
	{
		SET_BIT( pexit->exit_info, EX_ISDOOR );
		SET_BIT( pexit->exit_info, EX_CLOSED);
		SET_BIT( pexit->exit_info, EX_LOCKED);
		SET_BIT( pexit->exit_info, EX_NOPASSDOOR);
		SET_BIT( pexit->exit_info, EX_PICKPROOF);
		SET_BIT( pexit->exit_info, EX_BASHPROOF);
		SET_BIT( pexit->exit_info, EX_NOMOB);

		if (!apartment)
			pexit->key = location->vnum;

		if (pexit->rexit)
		{
			SET_BIT( pexit->rexit->exit_info, EX_ISDOOR );
		        SET_BIT( pexit->rexit->exit_info, EX_CLOSED);
		        SET_BIT( pexit->rexit->exit_info, EX_LOCKED);
			SET_BIT( pexit->rexit->exit_info, EX_NOPASSDOOR);
		        SET_BIT( pexit->rexit->exit_info, EX_PICKPROOF);
		        SET_BIT( pexit->rexit->exit_info, EX_BASHPROOF);
			SET_BIT( pexit->rexit->exit_info, EX_NOMOB);

		        if (!apartment)
				pexit->rexit->key = location->vnum;
		}

	}

	if (apartment)
		return TRUE;

	if ( (obj = get_obj_index(location->vnum)) != NULL)
	{
		delete_obj(obj);
		save_residence(location);
	}

	sprintf( buf, "%s's House Key", tmphome->name);
        key = make_object( location->vnum, 0, buf);
	key->value[0] = location->vnum;
	key->item_type = ITEM_TREASURE;
        key->level = 1;
        STRFREE( key->short_descr );
	key->short_descr = STRALLOC( buf );
	SET_BIT( key->wear_flags, ITEM_TAKE );
	SET_BIT( key->wear_flags, ITEM_HOLD );

	xREMOVE_BIT(key->extra_flags, ITEM_PROTOTYPE);

	save_residence(location);

	return TRUE;
}