/*
Copyright (c) 1990-2004 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2000-Apr-09 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/* atheos.h -- A few handy things for the AtheOS port
*
* (c) 1997 Chris Herborth (chrish@qnx.com) - BeOS port
* (c) 2004 Ruslan Nickolaev (nruslan@hotbox.ru) - AtheOS port
*
* This is covered under the usual Info-ZIP copyright
*/
#ifndef _ATHEOS_H_
#define _ATHEOS_H_
#define EB_BE_FL_BADBITS 0xfe /* bits currently undefined */
/*
AtheOS 'At' extra-field layout:
(same structure as the BeOS 'Be' e.f. layout, only signature and internal
conventions of the file attribute data are different...)
'At' - signature
ef_size - size of data in this EF (little-endian unsigned short)
full_size - uncompressed data size (little-endian unsigned long)
flag - flags (byte)
flags & EB_BE_FL_UNCMPR = the data is not compressed
flags & EB_BE_FL_BADBITS = the data is corrupted or we
can't handle it properly
data - compressed or uncompressed file attribute data
If flag & EB_BE_FL_UNCMPR, the data is not compressed; this optimisation is
necessary to prevent wasted space for files with small attributes. In this
case, there should be (ef_size - EB_BEOS_HLEN) bytes of data, and full_size
should equal (ef_size - EB_BEOS_HLEN).
If the data is compressed, there will be (ef_size - EB_BEOS_HLEN) bytes of
compressed data, and full_size bytes of uncompressed data.
If a file has absolutely no attributes, there will not be a 'At' extra field.
The uncompressed data is arranged like this:
attr_name\0 - C string
struct attr_info (fields in little-endian format)
attr_data (length in attr_info.ai_size)
*/
#endif /* _ATHEOS_H_ */