Method Gz.check_header()

Method check_header

string(8bit)|zero check_header(Stdio.Stream|void f, Stdio.Buffer|string(8bit)|void buf)

Description

Check whether a file has a valid gzip header.

Parameter f

File to check.

Parameter buf

Prefix of f.

Returns

Returns the content of f after the gzip header if a header was found. Returns 0 (zero) if there was no header.