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Justine Tunney
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159
libc/zip.h
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159
libc/zip.h
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#ifndef COSMOPOLITAN_LIBC_ZIP_H_
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#define COSMOPOLITAN_LIBC_ZIP_H_
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#include "libc/bits/bits.h"
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#include "libc/macros.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 kZipAlign 2
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#define kZipCosmopolitanVersion 1
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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
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#define kZipIattrAscii 1
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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 64 /* our choice; actually 2 */
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#define kZipCdirHdrLinkableSize \
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ROUNDUP(kZipCfileHdrMinSize + PATH_MAX, kZipCdirAlign)
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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 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 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 kZipExtraNtfsFiletimes 0x0001
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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])
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#define ZIP_CDIR_HDRSIZE(P) (ZIP_CDIR_COMMENTSIZE(P) + kZipCdirHdrMinSize)
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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) ((P)[4])
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#define ZIP_CFILE_FILEATTRCOMPAT(P) ((P)[5])
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#define ZIP_CFILE_VERSIONNEED(P) ((P)[6])
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#define ZIP_CFILE_OSNEED(P) ((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) read32le((P) + 24)
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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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(&(P)[46 + ZIP_CFILE_NAMESIZE(P) + ZIP_CFILE_EXTRASIZE(P)])
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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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/* central directory file header */
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#define ZIP_LFILE_MAGIC(P) read32le(P)
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#define ZIP_LFILE_VERSIONNEED(P) ((P)[4])
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#define ZIP_LFILE_OSNEED(P) ((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) read32le((P) + 22)
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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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uint8_t *zipfindcentraldir(const uint8_t *, size_t);
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_ZIP_H_ */
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