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Diffstat (limited to 'Build/source/libs/zziplib/zziplib-0.13.62/zzip/format.h')
-rw-r--r-- | Build/source/libs/zziplib/zziplib-0.13.62/zzip/format.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/Build/source/libs/zziplib/zziplib-0.13.62/zzip/format.h b/Build/source/libs/zziplib/zziplib-0.13.62/zzip/format.h new file mode 100644 index 00000000000..0881479c167 --- /dev/null +++ b/Build/source/libs/zziplib/zziplib-0.13.62/zzip/format.h @@ -0,0 +1,234 @@ +/* + * Author: + * Guido Draheim <guidod@gmx.de> + * + * Copyright (c) 2000,2001,2002,2003 Guido Draheim + * All rights reserved + * use under the restrictions of the + * Lesser GNU General Public License + * or alternatively the restrictions + * of the Mozilla Public License 1.1 + * + * The information was taken from appnote-981119-iz.zip + * at http://www.freesoftware.com/pub/infozip/doc/ + * which in turn is based on PKWARE's appnote.txt + * (newer link: ftp://ftp.info-zip.org/pub/infozip/doc/) + */ +#ifndef _ZZIP_FORMAT_H /* zzipformat.h */ +#define _ZZIP_FORMAT_H + +#include <zzip/types.h> +#include <zzip/__hints.h> +/* we have ICO C 9X types defined */ + +/* + * Overall zipfile format + * [local file header + file data stream + checksum descriptor] ... + * ... [disk central directory] [disk trailer record] + */ + +# ifdef _MSC_VER +# pragma pack(push, 1) +# endif + +struct zzip_version +{ + zzip_byte_t version[1]; + zzip_byte_t ostype[1]; +} ZZIP_GNUC_PACKED; + +struct zzip_dostime +{ + zzip_byte_t time[2]; + zzip_byte_t date[2]; +} ZZIP_GNUC_PACKED; + +#ifdef ZZIP_NEED_PACKED +/* if your compiler does interesting things about struct packing... */ +typedef zzip_byte_t zzip_version_t[2]; +typedef zzip_byte_t zzip_dostime_t[4]; +#else +typedef struct zzip_version zzip_version_t; +typedef struct zzip_dostime zzip_dostime_t; +#endif + +#define ZZIP_CHECKMAGIC(__p,__A,__B,__C,__D) \ + ( (((zzip_byte_t*)(__p))[0]==(__A)) && \ + (((zzip_byte_t*)(__p))[1]==(__B)) && \ + (((zzip_byte_t*)(__p))[2]==(__C)) && \ + (((zzip_byte_t*)(__p))[3]==(__D)) ) + +/* A. Local file header */ +struct zzip_file_header +{ +# define ZZIP_FILE_HEADER_MAGIC 0x04034b50 +# define ZZIP_FILE_HEADER_CHECKMAGIC(__p) ZZIP_CHECKMAGIC(__p,'P','K','\3','\4') + zzip_byte_t z_magic[4]; /* local file header signature (0x04034b50) */ + zzip_version_t z_extract; /* version needed to extract */ + zzip_byte_t z_flags[2]; /* general purpose bit flag */ + zzip_byte_t z_compr[2]; /* compression method */ + zzip_dostime_t z_dostime; /* last mod file time (dos format) */ + zzip_byte_t z_crc32[4]; /* crc-32 */ + zzip_byte_t z_csize[4]; /* compressed size */ + zzip_byte_t z_usize[4]; /* uncompressed size */ + zzip_byte_t z_namlen[2]; /* filename length (null if stdin) */ + zzip_byte_t z_extras[2]; /* extra field length */ + /* followed by filename (of variable size) */ + /* followed by extra field (of variable size) */ +} ZZIP_GNUC_PACKED; +#define zzip_file_header_headerlength (4+2+2+2+4+4+4+4+2+2) + +/* B. data descriptor + * the data descriptor exists only if bit 3 of z_flags is set. It is byte aligned + * and immediately follows the last byte of compressed data. It is only used if + * the output media of the compressor was not seekable, eg. standard output. + */ +struct zzip_file_trailer +{ +# define ZZIP_FILE_TRAILER_MAGIC 0x08074B50 +# define ZZIP_FILE_TRAILER_CHECKMAGIC(__p) ZZIP_CHECKMAGIC(__p,'P','K','\7','\8') + zzip_byte_t z_magic[4]; /* data descriptor signature (0x08074b50) */ + zzip_byte_t z_crc32[4]; /* crc-32 */ + zzip_byte_t z_csize[4]; /* compressed size */ + zzip_byte_t z_usize[4]; /* uncompressed size */ +} ZZIP_GNUC_PACKED; +#define zzip_file_trailer_headerlength (4+4+4+4) + +/* C. central directory structure: + [file header] . . . end of central dir record +*/ + +/* directory file header + * - a single entry including filename, extras and comment may not exceed 64k. + */ + +struct zzip_disk_entry +{ +# define ZZIP_DISK_ENTRY_MAGIC 0x02014b50 +# define ZZIP_DISK_ENTRY_CHECKMAGIC(__p) ZZIP_CHECKMAGIC(__p,'P','K','\1','\2') + zzip_byte_t z_magic[4]; /* central file header signature (0x02014b50) */ + zzip_version_t z_encoder; /* version made by */ + zzip_version_t z_extract; /* version need to extract */ + zzip_byte_t z_flags[2]; /* general purpose bit flag */ + zzip_byte_t z_compr[2]; /* compression method */ + zzip_dostime_t z_dostime; /* last mod file time&date (dos format) */ + zzip_byte_t z_crc32[4]; /* crc-32 */ + zzip_byte_t z_csize[4]; /* compressed size */ + zzip_byte_t z_usize[4]; /* uncompressed size */ + zzip_byte_t z_namlen[2]; /* filename length (null if stdin) */ + zzip_byte_t z_extras[2]; /* extra field length */ + zzip_byte_t z_comment[2]; /* file comment length */ + zzip_byte_t z_diskstart[2]; /* disk number of start (if spanning zip over multiple disks) */ + zzip_byte_t z_filetype[2]; /* internal file attributes, bit0 = ascii */ + zzip_byte_t z_filemode[4]; /* extrnal file attributes, eg. msdos attrib byte */ + zzip_byte_t z_offset[4]; /* relative offset of local file header, seekval if singledisk */ + /* followed by filename (of variable size) */ + /* followed by extra field (of variable size) */ + /* followed by file comment (of variable size) */ +} ZZIP_GNUC_PACKED; +#define zzip_disk_entry_headerlength (4+2+2+2+2+4+4+4+4+2+2+2+2+2+4+4) + + +struct zzip_root_dirent +{ /* the old name of the structure above */ +# define ZZIP_ROOT_DIRENT_MAGIC 0x02014b50 +# define ZZIP_ROOT_DIRENT_CHECKMAGIC(__p) ZZIP_DISK_ENTRY_CHECKMAGIC(__p) + zzip_byte_t z_magic[4]; + zzip_version_t z_encoder; + zzip_version_t z_extract; + zzip_byte_t z_flags[2]; + zzip_byte_t z_compr[2]; + zzip_dostime_t z_dostime; + zzip_byte_t z_crc32[4]; + zzip_byte_t z_csize[4]; + zzip_byte_t z_usize[4]; + zzip_byte_t z_namlen[2]; + zzip_byte_t z_extras[2]; + zzip_byte_t z_comment[2]; + zzip_byte_t z_diskstart[2]; + zzip_byte_t z_filetype[2]; + zzip_byte_t z_filemode[4]; + zzip_byte_t z_off[4]; +} ZZIP_GNUC_PACKED; + + +/* end of central dir record */ +struct zzip_disk_trailer +{ +# define ZZIP_DISK_TRAILER_MAGIC 0x06054b50 +# define ZZIP_DISK_TRAILER_CHECKMAGIC(__p) ZZIP_CHECKMAGIC(__p,'P','K','\5','\6') + zzip_byte_t z_magic[4]; /* end of central dir signature (0x06054b50) */ + zzip_byte_t z_disk[2]; /* number of this disk */ + zzip_byte_t z_finaldisk[2]; /* number of the disk with the start of the central dir */ + zzip_byte_t z_entries[2]; /* total number of entries in the central dir on this disk */ + zzip_byte_t z_finalentries[2]; /* total number of entries in the central dir */ + zzip_byte_t z_rootsize[4]; /* size of the central directory */ + zzip_byte_t z_rootseek[4]; /* offset of start of central directory with respect to * + * the starting disk number */ + zzip_byte_t z_comment[2]; /* zipfile comment length */ + /* followed by zipfile comment (of variable size) */ +} ZZIP_GNUC_PACKED; +#define zzip_disk_trailer_headerlength (4+2+2+2+2+4+4+2) + +/* extra field should be type + size + data + type + size + data ... */ +struct zzip_extra_block +{ /* fetch.h macros do not need this struct */ + zzip_byte_t z_datatype[2]; /* as input type - a mere <char*> is okay */ + zzip_byte_t z_datasize[2]; /* being returned by xx_to_extras usually */ +} ZZIP_GNUC_PACKED; +#define zzip_extra_block_headerlength (2+2) + +/* Zip64 end of central dir record */ +struct zzip_disk64_trailer +{ +# define ZZIP_DISK64_TRAILER_MAGIC 0x06064b50 +# define ZZIP_DISK64_TRAILER_CHECKMAGIC(__p) ZZIP_CHECKMAGIC(__p,'P','K','\6','\6') + zzip_byte_t z_magic[4]; /* end of central dir signature (0x06054b50) */ + zzip_byte_t z_size[8]; /* size of this central directory record */ + zzip_version_t z_encoder; /* version made by */ + zzip_version_t z_extract; /* version need to extract */ + zzip_byte_t z_disk[4]; /* number of this disk */ + zzip_byte_t z_finaldisk[4]; /* number of the disk with the start of the central dir */ + zzip_byte_t z_entries[8]; /* total number of entries in the central dir on this disk */ + zzip_byte_t z_finalentries[8]; /* total number of entries in the central dir */ + zzip_byte_t z_rootsize[8]; /* size of the central directory */ + zzip_byte_t z_rootseek[8]; /* offset of start of central directory with respect to * + * the starting disk number */ + /* followed by zip64 extensible data sector (of variable size) */ +} ZZIP_GNUC_PACKED; +#define zzip_disk64_trailer_headerlength (4+8+2+2+4+4+8+8+8+8) + +/* z_flags */ +#define ZZIP_IS_ENCRYPTED(p) ((*(zzip_byte_t*)p)&1) +#define ZZIP_IS_COMPRLEVEL(p) (((*(zzip_byte_t*)p)>>1)&3) +#define ZZIP_IS_STREAMED(p) (((*(zzip_byte_t*)p)>>3)&1) +#define ZZIP_IS_PATCHED(p) (((*(zzip_byte_t*)p)>>5)&1) + +/* z_compr */ +#define ZZIP_IS_STORED 0 +#define ZZIP_IS_SHRUNK 1 +#define ZZIP_IS_REDUCEDx1 2 +#define ZZIP_IS_REDUCEDx2 3 +#define ZZIP_IS_REDUCEDx3 4 +#define ZZIP_IS_REDUCEDx4 5 +#define ZZIP_IS_IMPLODED 6 +#define ZZIP_IS_TOKENIZED 7 +#define ZZIP_IS_DEFLATED 8 +#define ZZIP_IS_DEFLATED_BETTER 9 +#define ZZIP_IS_IMPLODED_BETTER 10 + +/* deflated comprlevel */ +#define ZZIP_DEFLATED_STD_COMPR 0 +#define ZZIP_DEFLATED_MAX_COMPR 1 +#define ZZIP_DEFLATED_LOW_COMPR 2 +#define ZZIP_DEFLATED_MIN_COMPR 3 + +# ifdef _MSC_VER +# pragma pack(pop) +# endif + +#endif /* _ZZIPFORMAT_H */ + + + + |