fstat Gets information about a file using an open file pointer arrayfstat intfp Gathers the statistics of the file opened by the file pointer fp. This function is similar to the stat function except that it operates on an open file pointer instead of a filename. Returns an array with the statistics of the file with the following elements: device inode number of links user id of owner group id owner device type if inode device * size in bytes time of last access time of last modification time of last change blocksize for filesystem I/O * number of blocks allocated * - only valid on systems supporting the st_blksize type--other systems (i.e. Windows) return -1 The results of this function are cached. See clearstatcache for more details.