ref: 7c5ca77a6e4d442b4c026e2cd9e483a692f65def
dir: /sys/src/libflate/zlib.h/
/* * zlib header fields */ enum { ZlibMeth = 0x0f, /* mask of compression methods */ ZlibDeflate = 0x08, ZlibCInfo = 0xf0, /* mask of compression aux. info */ ZlibWin32k = 0x70, /* 32k history window */ };