| rsc | ff3adf6 | 2004-04-14 20:09:21 +0000 | [diff] [blame] | 1 | typedef struct ZipHead ZipHead; |
| 2 | |
| 3 | enum |
| 4 | { |
| 5 | /* |
| 6 | * magic numbers |
| 7 | */ |
| 8 | ZHeader = 0x04034b50, |
| 9 | ZCHeader = 0x02014b50, |
| 10 | ZECHeader = 0x06054b50, |
| 11 | |
| 12 | /* |
| 13 | * "general purpose flag" bits |
| 14 | */ |
| 15 | ZEncrypted = 1 << 0, |
| 16 | ZTrailInfo = 1 << 3, /* uncsize, csize, and crc are in trailer */ |
| 17 | ZCompPatch = 1 << 5, /* compression patched data */ |
| 18 | |
| rsc | a0f1e21 | 2004-04-20 02:03:38 +0000 | [diff] [blame] | 19 | /* ZCrcPoly = 0xedb88320, */ |
| 20 | #define ZCrcPoly 0xedb88320 |
| rsc | ff3adf6 | 2004-04-14 20:09:21 +0000 | [diff] [blame] | 21 | |
| 22 | /* |
| 23 | * compression method |
| 24 | */ |
| 25 | ZDeflate = 8, |
| 26 | |
| 27 | /* |
| 28 | * internal file attributes |
| 29 | */ |
| 30 | ZIsText = 1 << 0, |
| 31 | |
| 32 | /* |
| 33 | * file attribute interpretation, from high byte of version |
| 34 | */ |
| 35 | ZDos = 0, |
| 36 | ZAmiga = 1, |
| 37 | ZVMS = 2, |
| 38 | ZUnix = 3, |
| 39 | ZVMCMS = 4, |
| 40 | ZAtariST = 5, |
| 41 | ZOS2HPFS = 6, |
| 42 | ZMac = 7, |
| 43 | ZZsys = 8, |
| 44 | ZCPM = 9, |
| 45 | ZNtfs = 10, |
| 46 | |
| 47 | /* |
| 48 | * external attribute flags for ZDos |
| 49 | */ |
| 50 | ZDROnly = 0x01, |
| 51 | ZDHidden = 0x02, |
| 52 | ZDSystem = 0x04, |
| 53 | ZDVLable = 0x08, |
| 54 | ZDDir = 0x10, |
| 55 | ZDArch = 0x20, |
| 56 | |
| 57 | ZHeadSize = 4 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2, |
| 58 | ZHeadCrc = 4 + 2 + 2 + 2 + 2 + 2, |
| 59 | ZTrailSize = 4 + 4 + 4, |
| 60 | ZCHeadSize = 4 + 2 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2 + 2 + 2 + 2 + 4 + 4, |
| 61 | ZECHeadSize = 4 + 2 + 2 + 2 + 2 + 4 + 4 + 2, |
| 62 | }; |
| 63 | |
| 64 | /* |
| 65 | * interesting info from a zip header |
| 66 | */ |
| 67 | struct ZipHead |
| 68 | { |
| 69 | int madeos; /* version made by */ |
| 70 | int madevers; |
| 71 | int extos; /* version needed to extract */ |
| 72 | int extvers; |
| 73 | int flags; /* general purpose bit flag */ |
| 74 | int meth; |
| 75 | int modtime; |
| 76 | int moddate; |
| 77 | ulong crc; |
| 78 | ulong csize; |
| 79 | ulong uncsize; |
| 80 | int iattr; |
| 81 | ulong eattr; |
| 82 | ulong off; |
| 83 | char *file; |
| 84 | }; |
