pub fn read_gz_header<R: Read>(r: &mut R) -> Result<GzHeader>Expand description
Try to read a gzip header from the provided reader.
Returns a GzHeader with the fields filled out if sucessful, or an io::Error with
ErrorKind::InvalidInput if decoding of the header.
Note that a gzip steam can contain multiple “members”. Each member contains a header, followed by compressed data and finally a checksum and byte count. This method will only read the header for the “member” at the start of the stream.