Header data for the Gzip format. Gzip includes metadata about the file which is compressed. These can be specified here when compressing from a stream rather than directly from a file.
operating system encoded in the Gz header Not all possible values are listed here, only the most useful ones
Modification time
Comment to be included in the header
Filename to be included in the header
Operating system that wrote the gz file
Whether the content is believed to be text
See Implementation
Header data for the Gzip format. Gzip includes metadata about the file which is compressed. These can be specified here when compressing from a stream rather than directly from a file.