/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _zipstruct_h
#define _zipstruct_h


/*
 *  Certain constants and structures for
 *  the Phil Katz ZIP archive format.
 *
 */

typedef struct ZipLocal_
  {
  unsigned char signature [4];
  unsigned char word [2];
  unsigned char bitflag [2];
  unsigned char method [2];
  unsigned char time [2];
  unsigned char date [2];
  unsigned char crc32 [4];
  unsigned char size [4];
  unsigned char orglen [4];
  unsigned char filename_len [2];
  unsigned char extrafield_len [2];
} ZipLocal;

/*
 * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
 * As the internals of a jar/zip file must not depend on the target
 * architecture (i386, ppc, ARM, ...), use a fixed value instead.
 */ 
#define ZIPLOCAL_SIZE (4+2+2+2+2+2+4+4+4+2+2)

typedef struct ZipCentral_
  {
  unsigned char signature [4];
  unsigned char version_made_by [2];
  unsigned char version [2];
  unsigned char bitflag [2];
  unsigned char method [2];
  unsigned char time [2];
  unsigned char date [2];
  unsigned char crc32 [4];
  unsigned char size [4];
  unsigned char orglen [4];
  unsigned char filename_len [2];
  unsigned char extrafield_len [2];
  unsigned char commentfield_len [2];
  unsigned char diskstart_number [2];
  unsigned char internal_attributes [2];
  unsigned char external_attributes [4];
  unsigned char localhdr_offset [4];
} ZipCentral;

/*
 * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
 * As the internals of a jar/zip file must not depend on the target
 * architecture (i386, ppc, ARM, ...), use a fixed value instead.
 */ 
#define ZIPCENTRAL_SIZE (4+2+2+2+2+2+2+4+4+4+2+2+2+2+2+4+4)

typedef struct ZipEnd_
  {
  unsigned char signature [4];
  unsigned char disk_nr [2];
  unsigned char start_central_dir [2];
  unsigned char total_entries_disk [2];
  unsigned char total_entries_archive [2];
  unsigned char central_dir_size [4];
  unsigned char offset_central_dir [4];
  unsigned char commentfield_len [2];
} ZipEnd;

/*
 * 'sizeof(struct XXX)' includes padding on ARM (see bug 87965)
 * As the internals of a jar/zip file must not depend on the target
 * architecture (i386, ppc, ARM, ...), use a fixed value instead.
 */ 
#define ZIPEND_SIZE (4+2+2+2+2+4+4+2)

/* signatures */
#define LOCALSIG    0x04034B50l
#define CENTRALSIG  0x02014B50l
#define ENDSIG      0x06054B50l

/* extra fields */
#define EXTENDED_TIMESTAMP_FIELD   0x5455
#define EXTENDED_TIMESTAMP_MODTIME 0x01

/* compression methods */
#define STORED            0
#define SHRUNK            1
#define REDUCED1          2
#define REDUCED2          3
#define REDUCED3          4
#define REDUCED4          5
#define IMPLODED          6
#define TOKENIZED         7
#define DEFLATED          8
#define UNSUPPORTED       0xFF
/* non-standard extension */
#define MOZ_JAR_BROTLI    0x81

#endif /* _zipstruct_h */