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- typedef struct ZipHead ZipHead;
- enum
- {
- /*
- * magic numbers
- */
- ZHeader = 0x04034b50,
- ZCHeader = 0x02014b50,
- ZECHeader = 0x06054b50,
- /*
- * "general purpose flag" bits
- */
- ZEncrypted = 1 << 0,
- ZTrailInfo = 1 << 3, /* uncsize, csize, and crc are in trailer */
- ZCompPatch = 1 << 5, /* compression patched data */
- ZCrcPoly = 0xedb88320,
- /*
- * compression method
- */
- ZDeflate = 8,
- /*
- * internal file attributes
- */
- ZIsText = 1 << 0,
- /*
- * file attribute interpretation, from high byte of version
- */
- ZDos = 0,
- ZAmiga = 1,
- ZVMS = 2,
- ZUnix = 3,
- ZVMCMS = 4,
- ZAtariST = 5,
- ZOS2HPFS = 6,
- ZMac = 7,
- ZZsys = 8,
- ZCPM = 9,
- ZNtfs = 10,
- /*
- * external attribute flags for ZDos
- */
- ZDROnly = 0x01,
- ZDHidden = 0x02,
- ZDSystem = 0x04,
- ZDVLable = 0x08,
- ZDDir = 0x10,
- ZDArch = 0x20,
- ZHeadSize = 4 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2,
- ZHeadCrc = 4 + 2 + 2 + 2 + 2 + 2,
- ZTrailSize = 4 + 4 + 4,
- ZCHeadSize = 4 + 2 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2 + 2 + 2 + 2 + 4 + 4,
- ZECHeadSize = 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2,
- };
- /*
- * interesting info from a zip header
- */
- struct ZipHead
- {
- int madeos; /* version made by */
- int madevers;
- int extos; /* version needed to extract */
- int extvers;
- int flags; /* general purpose bit flag */
- int meth;
- int modtime;
- int moddate;
- ulong crc;
- ulong csize;
- ulong uncsize;
- int iattr;
- ulong eattr;
- ulong off;
- char *file;
- };
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