#include	"db.h"/* Free up a DB structure, and all the malloc'ed buffers it * may point to.  Also close the file descriptors if still open. */int_db_free(DB *db){	if (db->idxfd >= 0 && close(db->idxfd) < 0)		err_dump("index close error");	if (db->datfd >= 0 && close(db->datfd) < 0)		err_dump("data close error");	db->idxfd = db->datfd = -1;	if (db->idxbuf != NULL)		free(db->idxbuf);	if (db->datbuf != NULL)		free(db->datbuf);	if (db->name != NULL)		free(db->name);	free(db);	return(0);}