modules/libjar/zipstruct.h

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef _zipstruct_h
   7 #define _zipstruct_h
   8
   9 /*
  10  *  Certain constants and structures for
  11  *  the Phil Katz ZIP archive format.
  12  *
  13  */
  14
  15 typedef struct ZipLocal_ {
  16   unsigned char signature[4];
  17   unsigned char word[2];
  18   unsigned char bitflag[2];
  19   unsigned char method[2];
  20   unsigned char time[2];
  21   unsigned char date[2];
  22   unsigned char crc32[4];
  23   unsigned char size[4];
  24   unsigned char orglen[4];
  25   unsigned char filename_len[2];
  26   unsigned char extrafield_len[2];
  27 } ZipLocal;
  28
  29 /*
  30  * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
  31  * As the internals of a jar/zip file must not depend on the target
  32  * architecture (i386, ppc, ARM, ...), use a fixed value instead.
  33  */
  34 #define ZIPLOCAL_SIZE (4 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2)
  35
  36 typedef struct ZipCentral_ {
  37   unsigned char signature[4];
  38   unsigned char version_made_by[2];
  39   unsigned char version[2];
  40   unsigned char bitflag[2];
  41   unsigned char method[2];
  42   unsigned char time[2];
  43   unsigned char date[2];
  44   unsigned char crc32[4];
  45   unsigned char size[4];
  46   unsigned char orglen[4];
  47   unsigned char filename_len[2];
  48   unsigned char extrafield_len[2];
  49   unsigned char commentfield_len[2];
  50   unsigned char diskstart_number[2];
  51   unsigned char internal_attributes[2];
  52   unsigned char external_attributes[4];
  53   unsigned char localhdr_offset[4];
  54 } ZipCentral;
  55
  56 /*
  57  * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
  58  * As the internals of a jar/zip file must not depend on the target
  59  * architecture (i386, ppc, ARM, ...), use a fixed value instead.
  60  */
  61 #define ZIPCENTRAL_SIZE \
  62   (4 + 2 + 2 + 2 + 2 + 2 + 2 + 4 + 4 + 4 + 2 + 2 + 2 + 2 + 2 + 4 + 4)
  63
  64 typedef struct ZipEnd_ {
  65   unsigned char signature[4];
  66   unsigned char disk_nr[2];
  67   unsigned char start_central_dir[2];
  68   unsigned char total_entries_disk[2];
  69   unsigned char total_entries_archive[2];
  70   unsigned char central_dir_size[4];
  71   unsigned char offset_central_dir[4];
  72   unsigned char commentfield_len[2];
  73 } ZipEnd;
  74
  75 /*
  76  * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
  77  * As the internals of a jar/zip file must not depend on the target
  78  * architecture (i386, ppc, ARM, ...), use a fixed value instead.
  79  */
  80 #define ZIPEND_SIZE (4 + 2 + 2 + 2 + 2 + 4 + 4 + 2)
  81
  82 /* signatures */
  83 #define LOCALSIG 0x04034B50l
  84 #define CENTRALSIG 0x02014B50l
  85 #define ENDSIG 0x06054B50l
  86 #define ENDSIG64 0x6064B50l
  87
  88 /* extra fields */
  89 #define EXTENDED_TIMESTAMP_FIELD 0x5455
  90 #define EXTENDED_TIMESTAMP_MODTIME 0x01
  91
  92 /* compression methods */
  93 #define STORED 0
  94 #define SHRUNK 1
  95 #define REDUCED1 2
  96 #define REDUCED2 3
  97 #define REDUCED3 4
  98 #define REDUCED4 5
  99 #define IMPLODED 6
 100 #define TOKENIZED 7
 101 #define DEFLATED 8
 102 #define UNSUPPORTED 0xFF
 103
 104 #endif /* _zipstruct_h */