tgzip.h - plan9port - [fork] Plan 9 from user space
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       ---
       tgzip.h (1092B)
       ---
            1 /*
            2  * gzip header fields
            3  */
            4 enum
            5 {
            6         GZMAGIC1        = 0x1f,
            7         GZMAGIC2        = 0x8b,
            8 
            9         GZDEFLATE        = 8,
           10 
           11         GZFTEXT                = 1 << 0,                /* file is text */
           12         GZFHCRC                = 1 << 1,                /* crc of header included */
           13         GZFEXTRA        = 1 << 2,                /* extra header included */
           14         GZFNAME                = 1 << 3,                /* name of file included */
           15         GZFCOMMENT        = 1 << 4,                /* header comment included */
           16         GZFMASK                = (1 << 5) -1,                /* mask of specified bits */
           17 
           18         GZXFAST                = 2,                        /* used fast algorithm, little compression */
           19         GZXBEST                = 4,                        /* used maximum compression algorithm */
           20 
           21         GZOSFAT                = 0,                        /* FAT file system */
           22         GZOSAMIGA        = 1,                        /* Amiga */
           23         GZOSVMS                = 2,                        /* VMS or OpenVMS */
           24         GZOSUNIX        = 3,                        /* Unix */
           25         GZOSVMCMS        = 4,                        /* VM/CMS */
           26         GZOSATARI        = 5,                        /* Atari TOS */
           27         GZOSHPFS        = 6,                        /* HPFS file system */
           28         GZOSMAC                = 7,                        /* Macintosh */
           29         GZOSZSYS        = 8,                        /* Z-System */
           30         GZOSCPM                = 9,                        /* CP/M */
           31         GZOSTOPS20        = 10,                        /* TOPS-20 */
           32         GZOSNTFS        = 11,                        /* NTFS file system */
           33         GZOSQDOS        = 12,                        /* QDOS */
           34         GZOSACORN        = 13,                        /* Acorn RISCOS */
           35         GZOSUNK                = 255,
           36 
           37 #define GZCRCPOLY 0xedb88320
           38 /*         GZCRCPOLY        = 0xedb88320UL, */
           39 
           40         GZOSINFERNO        = GZOSUNIX
           41 };