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#ifndef COSMOPOLITAN_LIBC_ZIP_H_
#define COSMOPOLITAN_LIBC_ZIP_H_
#include "libc/bits/bits.h"
#include "libc/macros.h"
#include "libc/str/str.h"
/**
* @fileoverview PKZIP Data Structures.
*/
#define kZipAlign 2
#define kZipCosmopolitanVersion 1
#define kZipOsDos 0
#define kZipOsAmiga 1
#define kZipOsOpenvms 2
#define kZipOsUnix 3
#define kZipOsVmcms 4
#define kZipOsAtarist 5
#define kZipOsOs2hpfs 6
#define kZipOsMacintosh 7
#define kZipOsZsystem 8
#define kZipOsCpm 9
#define kZipOsWindowsntfs 10
#define kZipOsMvsos390zos 11
#define kZipOsVse 12
#define kZipOsAcornrisc 13
#define kZipOsVfat 14
#define kZipOsAltmvs 15
#define kZipOsBeos 16
#define kZipOsTandem 17
#define kZipOsOs400 18
#define kZipOsOsxdarwin 19
#define kZipEra1989 10 /* PKZIP 1.0 */
#define kZipEra1993 20 /* PKZIP 2.0: deflate/subdir/etc. support */
#define kZipEra2001 45 /* PKZIP 4.5: kZipExtraZip64 support */
#define kZipIattrBinary 0
#define kZipIattrAscii 1
#define kZipCompressionNone 0
#define kZipCompressionDeflate 8
#define kZipCdirHdrMagic 0x06054b50 /* PK♣♠ "PK\5\6" */
#define kZipCdirHdrMinSize 22
#define kZipCdirAlign 64 /* our choice; actually 2 */
#define kZipCdirHdrLinkableSize \
ROUNDUP(kZipCfileHdrMinSize + PATH_MAX, kZipCdirAlign)
#define kZipCfileHdrMagic 0x02014b50 /* PK☺☻ "PK\1\2" */
#define kZipCfileHdrMinSize 46
#define kZipCfileOffsetGeneralflag 8
#define kZipCfileOffsetCompressionmethod 10
#define kZipCfileOffsetLastmodifiedtime 12
#define kZipCfileOffsetLastmodifieddate 14
#define kZipCfileOffsetCrc32 16
#define kZipCfileOffsetCompressedsize 20
#define kZipCfileOffsetUncompressedsize 24
#define kZipCfileOffsetExternalattributes 38
#define kZipCfileOffsetOffset 42
#define kZipLfileHdrMagic 0x04034b50 /* PK♥♦ "PK\3\4" */
#define kZipLfileHdrMinSize 30
#define kZipLfileOffsetGeneralflag 6
#define kZipLfileOffsetCompressionmethod 8
#define kZipLfileOffsetLastmodifiedtime 10
#define kZipLfileOffsetLastmodifieddate 12
#define kZipLfileOffsetCrc32 14
#define kZipLfileOffsetCompressedsize 18
#define kZipGflagUtf8 0x800
#define kZipExtraHdrSize 4
#define kZipExtraZip64 0x0001
#define kZipExtraNtfs 0x000a
#define kZipExtraExtendedTimestamp 0x5455
#define kZipCfileMagic "PK\001\002"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/* end of central directory record */
#define ZIP_CDIR_MAGIC(P) READ32LE(P)
#define ZIP_CDIR_DISK(P) READ16LE((P) + 4)
#define ZIP_CDIR_STARTINGDISK(P) READ16LE((P) + 6)
#define ZIP_CDIR_RECORDSONDISK(P) READ16LE((P) + 8)
#define ZIP_CDIR_RECORDS(P) READ16LE((P) + 10)
#define ZIP_CDIR_SIZE(P) READ32LE((P) + 12)
#define ZIP_CDIR_OFFSET(P) READ32LE((P) + 16)
#define ZIP_CDIR_COMMENTSIZE(P) READ16LE((P) + 20)
#define ZIP_CDIR_COMMENT(P) (&(P)[22])
#define ZIP_CDIR_HDRSIZE(P) (ZIP_CDIR_COMMENTSIZE(P) + kZipCdirHdrMinSize)
/* central directory file header */
#define ZIP_CFILE_MAGIC(P) READ32LE(P)
#define ZIP_CFILE_VERSIONMADE(P) ((P)[4])
#define ZIP_CFILE_FILEATTRCOMPAT(P) ((P)[5])
#define ZIP_CFILE_VERSIONNEED(P) ((P)[6])
#define ZIP_CFILE_OSNEED(P) ((P)[7])
#define ZIP_CFILE_GENERALFLAG(P) READ16LE((P) + kZipCfileOffsetGeneralflag)
#define ZIP_CFILE_COMPRESSIONMETHOD(P) \
READ16LE((P) + kZipCfileOffsetCompressionmethod)
#define ZIP_CFILE_LASTMODIFIEDTIME(P) \
READ16LE((P) + kZipCfileOffsetLastmodifiedtime) /* @see DOS_TIME() */
#define ZIP_CFILE_LASTMODIFIEDDATE(P) \
READ16LE((P) + kZipCfileOffsetLastmodifieddate) /* @see DOS_DATE() */
#define ZIP_CFILE_CRC32(P) READ32LE((P) + kZipCfileOffsetCrc32)
#define ZIP_CFILE_COMPRESSEDSIZE(P) READ32LE(P + kZipCfileOffsetCompressedsize)
#define ZIP_CFILE_UNCOMPRESSEDSIZE(P) \
READ32LE((P) + kZipCfileOffsetUncompressedsize)
#define ZIP_CFILE_NAMESIZE(P) READ16LE((P) + 28)
#define ZIP_CFILE_EXTRASIZE(P) READ16LE((P) + 30)
#define ZIP_CFILE_COMMENTSIZE(P) READ16LE((P) + 32)
#define ZIP_CFILE_DISK(P) READ16LE((P) + 34)
#define ZIP_CFILE_INTERNALATTRIBUTES(P) READ16LE((P) + 36)
#define ZIP_CFILE_EXTERNALATTRIBUTES(P) \
READ32LE((P) + kZipCfileOffsetExternalattributes)
#define ZIP_CFILE_OFFSET(P) READ32LE((P) + kZipCfileOffsetOffset)
#define ZIP_CFILE_NAME(P) ((const char *)(&(P)[46])) /* not nul-terminated */
#define ZIP_CFILE_EXTRA(P) (&(P)[46 + ZIP_CFILE_NAMESIZE(P)])
#define ZIP_CFILE_COMMENT(P) \
(&(P)[46 + ZIP_CFILE_NAMESIZE(P) + ZIP_CFILE_EXTRASIZE(P)])
#define ZIP_CFILE_HDRSIZE(P) \
(ZIP_CFILE_NAMESIZE(P) + ZIP_CFILE_EXTRASIZE(P) + ZIP_CFILE_COMMENTSIZE(P) + \
kZipCfileHdrMinSize)
/* local file header */
#define ZIP_LFILE_MAGIC(P) READ32LE(P)
#define ZIP_LFILE_VERSIONNEED(P) ((P)[4])
#define ZIP_LFILE_OSNEED(P) ((P)[5])
#define ZIP_LFILE_GENERALFLAG(P) READ16LE((P) + kZipLfileOffsetGeneralflag)
#define ZIP_LFILE_COMPRESSIONMETHOD(P) \
READ16LE((P) + kZipLfileOffsetCompressionmethod)
#define ZIP_LFILE_LASTMODIFIEDTIME(P) \
READ16LE((P) + kZipLfileOffsetLastmodifiedtime) /* @see DOS_TIME() */
#define ZIP_LFILE_LASTMODIFIEDDATE(P) \
READ16LE((P) + kZipLfileOffsetLastmodifieddate) /* @see DOS_DATE() */
#define ZIP_LFILE_CRC32(P) READ32LE((P) + kZipLfileOffsetCrc32)
#define ZIP_LFILE_COMPRESSEDSIZE(P) \
READ32LE((P) + kZipLfileOffsetCompressedsize)
#define ZIP_LFILE_UNCOMPRESSEDSIZE(P) READ32LE((P) + 22)
#define ZIP_LFILE_NAMESIZE(P) READ16LE((P) + 26)
#define ZIP_LFILE_EXTRASIZE(P) READ16LE((P) + 28)
#define ZIP_LFILE_NAME(P) ((const char *)(&(P)[30]))
#define ZIP_LFILE_EXTRA(P) (&(P)[30 + ZIP_LFILE_NAMESIZE(P)])
#define ZIP_LFILE_HDRSIZE(P) \
(ZIP_LFILE_NAMESIZE(P) + ZIP_LFILE_EXTRASIZE(P) + kZipLfileHdrMinSize)
#define ZIP_LFILE_CONTENT(P) ((P) + ZIP_LFILE_HDRSIZE(P))
#define ZIP_LFILE_SIZE(P) (ZIP_LFILE_HDRSIZE(P) + ZIP_LFILE_COMPRESSEDSIZE(P))
#define ZIP_EXTRA_HEADERID(P) READ16LE(P)
#define ZIP_EXTRA_CONTENTSIZE(P) READ16LE((P) + 2)
#define ZIP_EXTRA_CONTENT(P) (&(P)[4])
#define ZIP_EXTRA_SIZE(P) (ZIP_EXTRA_CONTENTSIZE(P) + kZipExtraHdrSize)
uint8_t *zipfindcentraldir(const uint8_t *, size_t);
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_ZIP_H_ */