mirror of
https://github.com/jart/cosmopolitan.git
synced 2024-05-18 03:22:40 +00:00
4a59210008
This change improves the way internal APIs are being hidden behind the `COSMO` define. The cosmo.h header will take care of defining that, so that a separate define statement isn't needed. This change also does a lot more to define which APIs are standard, and which belong to Cosmo.
222 lines
9.2 KiB
C
222 lines
9.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_ZIP_H_
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#define COSMOPOLITAN_LIBC_ZIP_H_
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#include "libc/calls/struct/timespec.h"
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#include "libc/intrin/bits.h"
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#include "libc/macros.internal.h"
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#include "libc/str/str.h"
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/**
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* @fileoverview PKZIP Data Structures.
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*/
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#define kZipOk 0
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#define kZipErrorEocdNotFound -1
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#define kZipErrorEocdOffsetOverflow -2
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#define kZipErrorEocdMagicNotFound -3
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#define kZipErrorEocdSizeOverflow -4
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#define kZipErrorEocdDiskMismatch -5
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#define kZipErrorCdirRecordsMismatch -6
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#define kZipErrorCdirRecordsOverflow -7
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#define kZipErrorCdirOffsetPastEocd -8
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#define kZipErrorCdirLocatorMagic -9
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#define kZipErrorCdirLocatorOffset -10
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#define kZipErrorRaceCondition -11
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#define kZipErrorMapFailed -12
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#define kZipErrorOpenFailed -13
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#define kZipAlign 2
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#define kZipCosmopolitanVersion kZipEra2001
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#define kZipOsDos 0
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#define kZipOsAmiga 1
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#define kZipOsOpenvms 2
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#define kZipOsUnix 3
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#define kZipOsVmcms 4
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#define kZipOsAtarist 5
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#define kZipOsOs2hpfs 6
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#define kZipOsMacintosh 7
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#define kZipOsZsystem 8
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#define kZipOsCpm 9
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#define kZipOsWindowsntfs 10
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#define kZipOsMvsos390zos 11
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#define kZipOsVse 12
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#define kZipOsAcornrisc 13
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#define kZipOsVfat 14
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#define kZipOsAltmvs 15
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#define kZipOsBeos 16
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#define kZipOsTandem 17
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#define kZipOsOs400 18
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#define kZipOsOsxdarwin 19
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#define kZipEra1989 10 /* PKZIP 1.0 */
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#define kZipEra1993 20 /* PKZIP 2.0: deflate/subdir/etc. support */
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#define kZipEra2001 45 /* PKZIP 4.5: kZipExtraZip64 support */
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#define kZipIattrBinary 0 /* first bit not set */
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#define kZipIattrText 1 /* first bit set */
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#define kZipCompressionNone 0
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#define kZipCompressionDeflate 8
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#define kZipCdirHdrMagic 0x06054b50 /* PK♣♠ "PK\5\6" */
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#define kZipCdirHdrMinSize 22
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#define kZipCdirAlign kZipAlign
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#define kZipCdirHdrLinkableSize 294
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#define kZipCdir64HdrMagic 0x06064b50 /* PK♣♠ "PK\6\6" */
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#define kZipCdir64HdrMinSize 56
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#define kZipCdir64LocatorMagic 0x07064b50 /* PK♠• "PK\6\7" */
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#define kZipCdir64LocatorSize 20
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#define kZipCfileHdrMagic 0x02014b50 /* PK☺☻ "PK\1\2" */
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#define kZipCfileHdrMinSize 46
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#define kZipCfileOffsetGeneralflag 8
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#define kZipCfileOffsetCompressionmethod 10
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#define kZipCfileOffsetLastmodifiedtime 12
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#define kZipCfileOffsetLastmodifieddate 14
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#define kZipCfileOffsetCrc32 16
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#define kZipCfileOffsetCompressedsize 20
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#define kZipCfileOffsetUncompressedsize 24
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#define kZipCfileOffsetExternalattributes 38
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#define kZipCfileOffsetOffset 42
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#define kZipLfileHdrMagic 0x04034b50 /* PK♥♦ "PK\3\4" */
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#define kZipLfileHdrMinSize 30
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#define kZipLfileOffsetGeneralflag 6
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#define kZipLfileOffsetCompressionmethod 8
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#define kZipLfileOffsetLastmodifiedtime 10
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#define kZipLfileOffsetLastmodifieddate 12
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#define kZipLfileOffsetCrc32 14
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#define kZipLfileOffsetCompressedsize 18
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#define kZipLfileOffsetUncompressedsize 22
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#define kZipGflagUtf8 0x800
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#define kZipExtraHdrSize 4
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#define kZipExtraZip64 0x0001
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#define kZipExtraNtfs 0x000a
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#define kZipExtraUnix 0x000d
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#define kZipExtraExtendedTimestamp 0x5455
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#define kZipExtraInfoZipNewUnixExtra 0x7875
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#define kZipCfileMagic "PK\001\002"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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/* end of central directory record */
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#define ZIP_CDIR_MAGIC(P) READ32LE(P)
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#define ZIP_CDIR_DISK(P) READ16LE((P) + 4)
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#define ZIP_CDIR_STARTINGDISK(P) READ16LE((P) + 6)
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#define ZIP_CDIR_RECORDSONDISK(P) READ16LE((P) + 8)
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#define ZIP_CDIR_RECORDS(P) READ16LE((P) + 10)
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#define ZIP_CDIR_SIZE(P) READ32LE((P) + 12)
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#define ZIP_CDIR_OFFSET(P) READ32LE((P) + 16)
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#define ZIP_CDIR_COMMENTSIZE(P) READ16LE((P) + 20)
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#define ZIP_CDIR_COMMENT(P) ((P) + 22) /* recommend stopping at nul */
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#define ZIP_CDIR_HDRSIZE(P) (ZIP_CDIR_COMMENTSIZE(P) + kZipCdirHdrMinSize)
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/* zip64 end of central directory record */
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#define ZIP_CDIR64_MAGIC(P) READ32LE(P)
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#define ZIP_CDIR64_HDRSIZE(P) (READ64LE((P) + 4) + 12)
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#define ZIP_CDIR64_VERSIONMADE(P) READ16LE((P) + 12)
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#define ZIP_CDIR64_VERSIONNEED(P) READ16LE((P) + 14)
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#define ZIP_CDIR64_DISK(P) READ32LE((P) + 16)
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#define ZIP_CDIR64_STARTINGDISK(P) READ32LE((P) + 20)
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#define ZIP_CDIR64_RECORDSONDISK(P) READ64LE((P) + 24)
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#define ZIP_CDIR64_RECORDS(P) READ64LE((P) + 32)
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#define ZIP_CDIR64_SIZE(P) READ64LE((P) + 40)
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#define ZIP_CDIR64_OFFSET(P) READ64LE((P) + 48)
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#define ZIP_CDIR64_COMMENTSIZE(P) \
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(ZIP_CDIR64_HDRSIZE(P) >= 56 ? ZIP_CDIR64_HDRSIZE(P) - 56 : 0)
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#define ZIP_CDIR64_COMMENT(P) ((P) + 56) /* recommend stopping at nul */
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#define ZIP_LOCATE64_MAGIC(P) READ32LE(P)
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#define ZIP_LOCATE64_STARTINGDISK(P) READ32LE((P) + 4)
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#define ZIP_LOCATE64_OFFSET(P) READ64LE((P) + 8)
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#define ZIP_LOCATE64_TOTALDISKS(P) READ32LE((P) + 12)
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/* central directory file header */
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#define ZIP_CFILE_MAGIC(P) READ32LE(P)
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#define ZIP_CFILE_VERSIONMADE(P) (255 & (P)[4])
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#define ZIP_CFILE_FILEATTRCOMPAT(P) (255 & (P)[5])
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#define ZIP_CFILE_VERSIONNEED(P) (255 & (P)[6])
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#define ZIP_CFILE_OSNEED(P) (255 & (P)[7])
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#define ZIP_CFILE_GENERALFLAG(P) READ16LE((P) + kZipCfileOffsetGeneralflag)
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#define ZIP_CFILE_COMPRESSIONMETHOD(P) \
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READ16LE((P) + kZipCfileOffsetCompressionmethod)
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#define ZIP_CFILE_LASTMODIFIEDTIME(P) \
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READ16LE((P) + kZipCfileOffsetLastmodifiedtime) /* @see DOS_TIME() */
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#define ZIP_CFILE_LASTMODIFIEDDATE(P) \
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READ16LE((P) + kZipCfileOffsetLastmodifieddate) /* @see DOS_DATE() */
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#define ZIP_CFILE_CRC32(P) READ32LE((P) + kZipCfileOffsetCrc32)
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#define ZIP_CFILE_COMPRESSEDSIZE(P) READ32LE(P + kZipCfileOffsetCompressedsize)
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#define ZIP_CFILE_UNCOMPRESSEDSIZE(P) \
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READ32LE((P) + kZipCfileOffsetUncompressedsize)
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#define ZIP_CFILE_NAMESIZE(P) READ16LE((P) + 28)
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#define ZIP_CFILE_EXTRASIZE(P) READ16LE((P) + 30)
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#define ZIP_CFILE_COMMENTSIZE(P) READ16LE((P) + 32)
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#define ZIP_CFILE_DISK(P) READ16LE((P) + 34)
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#define ZIP_CFILE_INTERNALATTRIBUTES(P) READ16LE((P) + 36)
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#define ZIP_CFILE_EXTERNALATTRIBUTES(P) \
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READ32LE((P) + kZipCfileOffsetExternalattributes)
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#define ZIP_CFILE_OFFSET(P) READ32LE((P) + kZipCfileOffsetOffset)
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#define ZIP_CFILE_NAME(P) ((const char *)((P) + 46)) /* not nul-terminated */
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#define ZIP_CFILE_EXTRA(P) ((P) + 46 + ZIP_CFILE_NAMESIZE(P))
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#define ZIP_CFILE_COMMENT(P) \
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((const char *)((P) + 46 + ZIP_CFILE_NAMESIZE(P) + \
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ZIP_CFILE_EXTRASIZE(P))) /* recommend stopping at nul */
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#define ZIP_CFILE_HDRSIZE(P) \
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(ZIP_CFILE_NAMESIZE(P) + ZIP_CFILE_EXTRASIZE(P) + ZIP_CFILE_COMMENTSIZE(P) + \
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kZipCfileHdrMinSize)
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/* local file header */
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#define ZIP_LFILE_MAGIC(P) READ32LE(P)
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#define ZIP_LFILE_VERSIONNEED(P) (255 & (P)[4])
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#define ZIP_LFILE_OSNEED(P) (255 & (P)[5])
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#define ZIP_LFILE_GENERALFLAG(P) READ16LE((P) + kZipLfileOffsetGeneralflag)
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#define ZIP_LFILE_COMPRESSIONMETHOD(P) \
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READ16LE((P) + kZipLfileOffsetCompressionmethod)
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#define ZIP_LFILE_LASTMODIFIEDTIME(P) \
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READ16LE((P) + kZipLfileOffsetLastmodifiedtime) /* @see DOS_TIME() */
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#define ZIP_LFILE_LASTMODIFIEDDATE(P) \
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READ16LE((P) + kZipLfileOffsetLastmodifieddate) /* @see DOS_DATE() */
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#define ZIP_LFILE_CRC32(P) READ32LE((P) + kZipLfileOffsetCrc32)
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#define ZIP_LFILE_COMPRESSEDSIZE(P) \
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READ32LE((P) + kZipLfileOffsetCompressedsize)
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#define ZIP_LFILE_UNCOMPRESSEDSIZE(P) \
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READ32LE((P) + kZipLfileOffsetUncompressedsize)
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#define ZIP_LFILE_NAMESIZE(P) READ16LE((P) + 26)
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#define ZIP_LFILE_EXTRASIZE(P) READ16LE((P) + 28)
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#define ZIP_LFILE_NAME(P) ((const char *)((P) + 30))
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#define ZIP_LFILE_EXTRA(P) ((P) + 30 + ZIP_LFILE_NAMESIZE(P))
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#define ZIP_LFILE_HDRSIZE(P) \
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(ZIP_LFILE_NAMESIZE(P) + ZIP_LFILE_EXTRASIZE(P) + kZipLfileHdrMinSize)
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#define ZIP_LFILE_CONTENT(P) ((P) + ZIP_LFILE_HDRSIZE(P))
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#define ZIP_LFILE_SIZE(P) (ZIP_LFILE_HDRSIZE(P) + ZIP_LFILE_COMPRESSEDSIZE(P))
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#define ZIP_EXTRA_HEADERID(P) READ16LE(P)
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#define ZIP_EXTRA_CONTENTSIZE(P) READ16LE((P) + 2)
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#define ZIP_EXTRA_CONTENT(P) ((P) + 4)
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#define ZIP_EXTRA_SIZE(P) (ZIP_EXTRA_CONTENTSIZE(P) + kZipExtraHdrSize)
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void *GetZipEocd(const uint8_t *, size_t, int *);
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uint8_t *FindEmbeddedApe(const uint8_t *, size_t);
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int IsZipEocd32(const uint8_t *, size_t, size_t);
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int IsZipEocd64(const uint8_t *, size_t, size_t);
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int GetZipCfileMode(const uint8_t *);
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uint64_t GetZipCdirOffset(const uint8_t *);
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uint64_t GetZipCdirRecords(const uint8_t *);
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void *GetZipCdirComment(const uint8_t *);
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uint64_t GetZipCdirSize(const uint8_t *);
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uint64_t GetZipCdirCommentSize(const uint8_t *);
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uint64_t GetZipCfileUncompressedSize(const uint8_t *);
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uint64_t GetZipCfileCompressedSize(const uint8_t *);
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uint64_t GetZipCfileOffset(const uint8_t *);
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uint64_t GetZipLfileUncompressedSize(const uint8_t *);
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uint64_t GetZipLfileCompressedSize(const uint8_t *);
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void GetZipCfileTimestamps(const uint8_t *, struct timespec *,
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struct timespec *, struct timespec *, int);
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_ZIP_H_ */
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