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added unrar dll for windows

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git-svn-id: http://comictagger.googlecode.com/svn/trunk@11 6c5673fe-1810-88d6-992b-cd32ca31540c
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beville@gmail.com 2012-11-06 20:27:52 +00:00
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18
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The unrar.dll library is freeware. This means:
1. All copyrights to RAR and the unrar.dll are exclusively
owned by the author - Alexander Roshal.
2. The unrar.dll library may be used in any software to handle RAR
archives without limitations free of charge.
3. THE RAR ARCHIVER AND THE UNRAR.DLL LIBRARY ARE DISTRIBUTED "AS IS".
NO WARRANTY OF ANY KIND IS EXPRESSED OR IMPLIED. YOU USE AT
YOUR OWN RISK. THE AUTHOR WILL NOT BE LIABLE FOR DATA LOSS,
DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING
OR MISUSING THIS SOFTWARE.
Thank you for your interest in RAR and unrar.dll.
Alexander L. Roshal

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#ifndef _UNRAR_DLL_
#define _UNRAR_DLL_
#define ERAR_END_ARCHIVE 10
#define ERAR_NO_MEMORY 11
#define ERAR_BAD_DATA 12
#define ERAR_BAD_ARCHIVE 13
#define ERAR_UNKNOWN_FORMAT 14
#define ERAR_EOPEN 15
#define ERAR_ECREATE 16
#define ERAR_ECLOSE 17
#define ERAR_EREAD 18
#define ERAR_EWRITE 19
#define ERAR_SMALL_BUF 20
#define ERAR_UNKNOWN 21
#define ERAR_MISSING_PASSWORD 22
#define RAR_OM_LIST 0
#define RAR_OM_EXTRACT 1
#define RAR_OM_LIST_INCSPLIT 2
#define RAR_SKIP 0
#define RAR_TEST 1
#define RAR_EXTRACT 2
#define RAR_VOL_ASK 0
#define RAR_VOL_NOTIFY 1
#define RAR_DLL_VERSION 4
#ifdef _UNIX
#define CALLBACK
#define PASCAL
#define LONG long
#define HANDLE void *
#define LPARAM long
#define UINT unsigned int
#endif
struct RARHeaderData
{
char ArcName[260];
char FileName[260];
unsigned int Flags;
unsigned int PackSize;
unsigned int UnpSize;
unsigned int HostOS;
unsigned int FileCRC;
unsigned int FileTime;
unsigned int UnpVer;
unsigned int Method;
unsigned int FileAttr;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
};
struct RARHeaderDataEx
{
char ArcName[1024];
wchar_t ArcNameW[1024];
char FileName[1024];
wchar_t FileNameW[1024];
unsigned int Flags;
unsigned int PackSize;
unsigned int PackSizeHigh;
unsigned int UnpSize;
unsigned int UnpSizeHigh;
unsigned int HostOS;
unsigned int FileCRC;
unsigned int FileTime;
unsigned int UnpVer;
unsigned int Method;
unsigned int FileAttr;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
unsigned int Reserved[1024];
};
struct RAROpenArchiveData
{
char *ArcName;
unsigned int OpenMode;
unsigned int OpenResult;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
};
struct RAROpenArchiveDataEx
{
char *ArcName;
wchar_t *ArcNameW;
unsigned int OpenMode;
unsigned int OpenResult;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
unsigned int Flags;
unsigned int Reserved[32];
};
enum UNRARCALLBACK_MESSAGES {
UCM_CHANGEVOLUME,UCM_PROCESSDATA,UCM_NEEDPASSWORD
};
typedef int (CALLBACK *UNRARCALLBACK)(UINT msg,LPARAM UserData,LPARAM P1,LPARAM P2);
typedef int (PASCAL *CHANGEVOLPROC)(char *ArcName,int Mode);
typedef int (PASCAL *PROCESSDATAPROC)(unsigned char *Addr,int Size);
#ifdef __cplusplus
extern "C" {
#endif
HANDLE PASCAL RAROpenArchive(struct RAROpenArchiveData *ArchiveData);
HANDLE PASCAL RAROpenArchiveEx(struct RAROpenArchiveDataEx *ArchiveData);
int PASCAL RARCloseArchive(HANDLE hArcData);
int PASCAL RARReadHeader(HANDLE hArcData,struct RARHeaderData *HeaderData);
int PASCAL RARReadHeaderEx(HANDLE hArcData,struct RARHeaderDataEx *HeaderData);
int PASCAL RARProcessFile(HANDLE hArcData,int Operation,char *DestPath,char *DestName);
int PASCAL RARProcessFileW(HANDLE hArcData,int Operation,wchar_t *DestPath,wchar_t *DestName);
void PASCAL RARSetCallback(HANDLE hArcData,UNRARCALLBACK Callback,LPARAM UserData);
void PASCAL RARSetChangeVolProc(HANDLE hArcData,CHANGEVOLPROC ChangeVolProc);
void PASCAL RARSetProcessDataProc(HANDLE hArcData,PROCESSDATAPROC ProcessDataProc);
void PASCAL RARSetPassword(HANDLE hArcData,char *Password);
int PASCAL RARGetDllVersion();
#ifdef __cplusplus
}
#endif
#endif

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UnRAR.dll Manual
~~~~~~~~~~~~~~~~
UnRAR.dll is a 32-bit Windows dynamic-link library which provides
file extraction from RAR archives.
Exported functions
====================================================================
HANDLE PASCAL RAROpenArchive(struct RAROpenArchiveData *ArchiveData)
====================================================================
Description
~~~~~~~~~~~
Open RAR archive and allocate memory structures
Parameters
~~~~~~~~~~
ArchiveData Points to RAROpenArchiveData structure
struct RAROpenArchiveData
{
char *ArcName;
UINT OpenMode;
UINT OpenResult;
char *CmtBuf;
UINT CmtBufSize;
UINT CmtSize;
UINT CmtState;
};
Structure fields:
ArcName
Input parameter which should point to zero terminated string
containing the archive name.
OpenMode
Input parameter.
Possible values
RAR_OM_LIST
Open archive for reading file headers only.
RAR_OM_EXTRACT
Open archive for testing and extracting files.
RAR_OM_LIST_INCSPLIT
Open archive for reading file headers only. If you open an archive
in such mode, RARReadHeader[Ex] will return all file headers,
including those with "file continued from previous volume" flag.
In case of RAR_OM_LIST such headers are automatically skipped.
So if you process RAR volumes in RAR_OM_LIST_INCSPLIT mode, you will
get several file header records for same file if file is split between
volumes. For such files only the last file header record will contain
the correct file CRC and if you wish to get the correct packed size,
you need to sum up packed sizes of all parts.
OpenResult
Output parameter.
Possible values
0 Success
ERAR_NO_MEMORY Not enough memory to initialize data structures
ERAR_BAD_DATA Archive header broken
ERAR_BAD_ARCHIVE File is not valid RAR archive
ERAR_UNKNOWN_FORMAT Unknown encryption used for archive headers
ERAR_EOPEN File open error
CmtBuf
Input parameter which should point to the buffer for archive
comments. Maximum comment size is limited to 64Kb. Comment text is
zero terminated. If the comment text is larger than the buffer
size, the comment text will be truncated. If CmtBuf is set to
NULL, comments will not be read.
CmtBufSize
Input parameter which should contain size of buffer for archive
comments.
CmtSize
Output parameter containing size of comments actually read into the
buffer, cannot exceed CmtBufSize.
CmtState
Output parameter.
Possible values
0 comments not present
1 Comments read completely
ERAR_NO_MEMORY Not enough memory to extract comments
ERAR_BAD_DATA Broken comment
ERAR_UNKNOWN_FORMAT Unknown comment format
ERAR_SMALL_BUF Buffer too small, comments not completely read
Return values
~~~~~~~~~~~~~
Archive handle or NULL in case of error
========================================================================
HANDLE PASCAL RAROpenArchiveEx(struct RAROpenArchiveDataEx *ArchiveData)
========================================================================
Description
~~~~~~~~~~~
Similar to RAROpenArchive, but uses RAROpenArchiveDataEx structure
allowing to specify Unicode archive name and returning information
about archive flags.
Parameters
~~~~~~~~~~
ArchiveData Points to RAROpenArchiveDataEx structure
struct RAROpenArchiveDataEx
{
char *ArcName;
wchar_t *ArcNameW;
unsigned int OpenMode;
unsigned int OpenResult;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
unsigned int Flags;
unsigned int Reserved[32];
};
Structure fields:
ArcNameW
Input parameter which should point to zero terminated Unicode string
containing the archive name or NULL if Unicode name is not specified.
Flags
Output parameter. Combination of bit flags.
Possible values
0x0001 - Volume attribute (archive volume)
0x0002 - Archive comment present
0x0004 - Archive lock attribute
0x0008 - Solid attribute (solid archive)
0x0010 - New volume naming scheme ('volname.partN.rar')
0x0020 - Authenticity information present
0x0040 - Recovery record present
0x0080 - Block headers are encrypted
0x0100 - First volume (set only by RAR 3.0 and later)
Reserved[32]
Reserved for future use. Must be zero.
Information on other structure fields and function return values
is available above, in RAROpenArchive function description.
====================================================================
int PASCAL RARCloseArchive(HANDLE hArcData)
====================================================================
Description
~~~~~~~~~~~
Close RAR archive and release allocated memory. It must be called when
archive processing is finished, even if the archive processing was stopped
due to an error.
Parameters
~~~~~~~~~~
hArcData
This parameter should contain the archive handle obtained from the
RAROpenArchive function call.
Return values
~~~~~~~~~~~~~
0 Success
ERAR_ECLOSE Archive close error
====================================================================
int PASCAL RARReadHeader(HANDLE hArcData,
struct RARHeaderData *HeaderData)
====================================================================
Description
~~~~~~~~~~~
Read header of file in archive.
Parameters
~~~~~~~~~~
hArcData
This parameter should contain the archive handle obtained from the
RAROpenArchive function call.
HeaderData
It should point to RARHeaderData structure:
struct RARHeaderData
{
char ArcName[260];
char FileName[260];
UINT Flags;
UINT PackSize;
UINT UnpSize;
UINT HostOS;
UINT FileCRC;
UINT FileTime;
UINT UnpVer;
UINT Method;
UINT FileAttr;
char *CmtBuf;
UINT CmtBufSize;
UINT CmtSize;
UINT CmtState;
};
Structure fields:
ArcName
Output parameter which contains a zero terminated string of the
current archive name. May be used to determine the current volume
name.
FileName
Output parameter which contains a zero terminated string of the
file name in OEM (DOS) encoding.
Flags
Output parameter which contains file flags:
0x01 - file continued from previous volume
0x02 - file continued on next volume
0x04 - file encrypted with password
0x08 - file comment present
0x10 - compression of previous files is used (solid flag)
bits 7 6 5
0 0 0 - dictionary size 64 Kb
0 0 1 - dictionary size 128 Kb
0 1 0 - dictionary size 256 Kb
0 1 1 - dictionary size 512 Kb
1 0 0 - dictionary size 1024 Kb
1 0 1 - dictionary size 2048 KB
1 1 0 - dictionary size 4096 KB
1 1 1 - file is directory
Other bits are reserved.
PackSize
Output parameter means packed file size or size of the
file part if file was split between volumes.
UnpSize
Output parameter - unpacked file size.
HostOS
Output parameter - operating system used for archiving:
0 - MS DOS;
1 - OS/2.
2 - Win32
3 - Unix
FileCRC
Output parameter which contains unpacked file CRC. In case of file parts
split between volumes only the last part contains the correct CRC
and it is accessible only in RAR_OM_LIST_INCSPLIT listing mode.
FileTime
Output parameter - contains date and time in standard MS DOS format.
UnpVer
Output parameter - RAR version needed to extract file.
It is encoded as 10 * Major version + minor version.
Method
Output parameter - packing method.
FileAttr
Output parameter - file attributes.
CmtBuf
File comments support is not implemented in the new DLL version yet.
Now CmtState is always 0.
/*
* Input parameter which should point to the buffer for file
* comments. Maximum comment size is limited to 64Kb. Comment text is
* a zero terminated string in OEM encoding. If the comment text is
* larger than the buffer size, the comment text will be truncated.
* If CmtBuf is set to NULL, comments will not be read.
*/
CmtBufSize
Input parameter which should contain size of buffer for archive
comments.
CmtSize
Output parameter containing size of comments actually read into the
buffer, should not exceed CmtBufSize.
CmtState
Output parameter.
Possible values
0 Absent comments
1 Comments read completely
ERAR_NO_MEMORY Not enough memory to extract comments
ERAR_BAD_DATA Broken comment
ERAR_UNKNOWN_FORMAT Unknown comment format
ERAR_SMALL_BUF Buffer too small, comments not completely read
Return values
~~~~~~~~~~~~~
0 Success
ERAR_END_ARCHIVE End of archive
ERAR_BAD_DATA File header broken
====================================================================
int PASCAL RARReadHeaderEx(HANDLE hArcData,
struct RARHeaderDataEx *HeaderData)
====================================================================
Description
~~~~~~~~~~~
Similar to RARReadHeader, but uses RARHeaderDataEx structure,
containing information about Unicode file names and 64 bit file sizes.
struct RARHeaderDataEx
{
char ArcName[1024];
wchar_t ArcNameW[1024];
char FileName[1024];
wchar_t FileNameW[1024];
unsigned int Flags;
unsigned int PackSize;
unsigned int PackSizeHigh;
unsigned int UnpSize;
unsigned int UnpSizeHigh;
unsigned int HostOS;
unsigned int FileCRC;
unsigned int FileTime;
unsigned int UnpVer;
unsigned int Method;
unsigned int FileAttr;
char *CmtBuf;
unsigned int CmtBufSize;
unsigned int CmtSize;
unsigned int CmtState;
unsigned int Reserved[1024];
};
====================================================================
int PASCAL RARProcessFile(HANDLE hArcData,
int Operation,
char *DestPath,
char *DestName)
====================================================================
Description
~~~~~~~~~~~
Performs action and moves the current position in the archive to
the next file. Extract or test the current file from the archive
opened in RAR_OM_EXTRACT mode. If the mode RAR_OM_LIST is set,
then a call to this function will simply skip the archive position
to the next file.
Parameters
~~~~~~~~~~
hArcData
This parameter should contain the archive handle obtained from the
RAROpenArchive function call.
Operation
File operation.
Possible values
RAR_SKIP Move to the next file in the archive. If the
archive is solid and RAR_OM_EXTRACT mode was set
when the archive was opened, the current file will
be processed - the operation will be performed
slower than a simple seek.
RAR_TEST Test the current file and move to the next file in
the archive. If the archive was opened with
RAR_OM_LIST mode, the operation is equal to
RAR_SKIP.
RAR_EXTRACT Extract the current file and move to the next file.
If the archive was opened with RAR_OM_LIST mode,
the operation is equal to RAR_SKIP.
DestPath
This parameter should point to a zero terminated string containing the
destination directory to which to extract files to. If DestPath is equal
to NULL, it means extract to the current directory. This parameter has
meaning only if DestName is NULL.
DestName
This parameter should point to a string containing the full path and name
to assign to extracted file or it can be NULL to use the default name.
If DestName is defined (not NULL), it overrides both the original file
name saved in the archive and path specigied in DestPath setting.
Both DestPath and DestName must be in OEM encoding. If necessary,
use CharToOem to convert text to OEM before passing to this function.
Return values
~~~~~~~~~~~~~
0 Success
ERAR_BAD_DATA File CRC error
ERAR_BAD_ARCHIVE Volume is not valid RAR archive
ERAR_UNKNOWN_FORMAT Unknown archive format
ERAR_EOPEN Volume open error
ERAR_ECREATE File create error
ERAR_ECLOSE File close error
ERAR_EREAD Read error
ERAR_EWRITE Write error
Note: if you wish to cancel extraction, return -1 when processing
UCM_PROCESSDATA callback message.
====================================================================
int PASCAL RARProcessFileW(HANDLE hArcData,
int Operation,
wchar_t *DestPath,
wchar_t *DestName)
====================================================================
Description
~~~~~~~~~~~
Unicode version of RARProcessFile. It uses Unicode DestPath
and DestName parameters, other parameters and return values
are the same as in RARProcessFile.
====================================================================
void PASCAL RARSetCallback(HANDLE hArcData,
int PASCAL (*CallbackProc)(UINT msg,LPARAM UserData,LPARAM P1,LPARAM P2),
LPARAM UserData);
====================================================================
Description
~~~~~~~~~~~
Set a user-defined callback function to process Unrar events.
Parameters
~~~~~~~~~~
hArcData
This parameter should contain the archive handle obtained from the
RAROpenArchive function call.
CallbackProc
It should point to a user-defined callback function.
The function will be passed four parameters:
msg Type of event. Described below.
UserData User defined value passed to RARSetCallback.
P1 and P2 Event dependent parameters. Described below.
Possible events
UCM_CHANGEVOLUME Process volume change.
P1 Points to the zero terminated name
of the next volume.
P2 The function call mode:
RAR_VOL_ASK Required volume is absent. The function should
prompt user and return a positive value
to retry or return -1 value to terminate
operation. The function may also specify a new
volume name, placing it to the address specified
by P1 parameter.
RAR_VOL_NOTIFY Required volume is successfully opened.
This is a notification call and volume name
modification is not allowed. The function should
return a positive value to continue or -1
to terminate operation.
UCM_PROCESSDATA Process unpacked data. It may be used to read
a file while it is being extracted or tested
without actual extracting file to disk.
Return a positive value to continue process
or -1 to cancel the archive operation
P1 Address pointing to the unpacked data.
Function may refer to the data but must not
change it.
P2 Size of the unpacked data. It is guaranteed
only that the size will not exceed the maximum
dictionary size (4 Mb in RAR 3.0).
UCM_NEEDPASSWORD DLL needs a password to process archive.
This message must be processed if you wish
to be able to handle archives with encrypted
file names. It can be also used as replacement
of RARSetPassword function even for usual
encrypted files with non-encrypted names.
P1 Address pointing to the buffer for a password.
You need to copy a password here.
P2 Size of the password buffer.
UserData
User data passed to callback function.
Other functions of UnRAR.dll should not be called from the callback
function.
Return values
~~~~~~~~~~~~~
None
====================================================================
void PASCAL RARSetChangeVolProc(HANDLE hArcData,
int PASCAL (*ChangeVolProc)(char *ArcName,int Mode));
====================================================================
Obsoleted, use RARSetCallback instead.
====================================================================
void PASCAL RARSetProcessDataProc(HANDLE hArcData,
int PASCAL (*ProcessDataProc)(unsigned char *Addr,int Size))
====================================================================
Obsoleted, use RARSetCallback instead.
====================================================================
void PASCAL RARSetPassword(HANDLE hArcData,
char *Password);
====================================================================
Description
~~~~~~~~~~~
Set a password to decrypt files.
Parameters
~~~~~~~~~~
hArcData
This parameter should contain the archive handle obtained from the
RAROpenArchive function call.
Password
It should point to a string containing a zero terminated password.
Return values
~~~~~~~~~~~~~
None
====================================================================
void PASCAL RARGetDllVersion();
====================================================================
Description
~~~~~~~~~~~
Returns API version.
Parameters
~~~~~~~~~~
None.
Return values
~~~~~~~~~~~~~
Returns an integer value denoting UnRAR.dll API version, which is also
defined in unrar.h as RAR_DLL_VERSION. API version number is incremented
only in case of noticeable changes in UnRAR.dll API. Do not confuse it
with version of UnRAR.dll stored in DLL resources, which is incremented
with every DLL rebuild.
If RARGetDllVersion() returns a value lower than UnRAR.dll which your
application was designed for, it may indicate that DLL version is too old
and it will fail to provide all necessary functions to your application.
This function is absent in old versions of UnRAR.dll, so it is safer
to use LoadLibrary and GetProcAddress to access this function.

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List of unrar.dll API changes. We do not include performance and reliability
improvements into this list, but this library and RAR/UnRAR tools share
the same source code. So the latest version of unrar.dll usually contains
same decompression algorithm changes as the latest UnRAR version.
============================================================================
-- 18 January 2008
all LONG parameters of CallbackProc function were changed
to LPARAM type for 64 bit mode compatibility.
-- 12 December 2007
Added new RAR_OM_LIST_INCSPLIT open mode for function RAROpenArchive.
-- 14 August 2007
Added NoCrypt\unrar_nocrypt.dll without decryption code for those
applications where presence of encryption or decryption code is not
allowed because of legal restrictions.
-- 14 December 2006
Added ERAR_MISSING_PASSWORD error type. This error is returned
if empty password is specified for encrypted file.
-- 12 June 2003
Added RARProcessFileW function, Unicode version of RARProcessFile
-- 9 August 2002
Added RAROpenArchiveEx function allowing to specify Unicode archive
name and get archive flags.
-- 24 January 2002
Added RARReadHeaderEx function allowing to read Unicode file names
and 64 bit file sizes.
-- 23 January 2002
Added ERAR_UNKNOWN error type (it is used for all errors which
do not have special ERAR code yet) and UCM_NEEDPASSWORD callback
message.
Unrar.dll automatically opens all next volumes not only when extracting,
but also in RAR_OM_LIST mode.
-- 27 November 2001
RARSetChangeVolProc and RARSetProcessDataProc are replaced by
the single callback function installed with RARSetCallback.
Unlike old style callbacks, the new function accepts the user defined
parameter. Unrar.dll still supports RARSetChangeVolProc and
RARSetProcessDataProc for compatibility purposes, but if you write
a new application, better use RARSetCallback.
File comments support is not implemented in the new DLL version yet.
Now CmtState is always 0.
-- 13 August 2001
Added RARGetDllVersion function, so you may distinguish old unrar.dll,
which used C style callback functions and the new one with PASCAL callbacks.
-- 10 May 2001
Callback functions in RARSetChangeVolProc and RARSetProcessDataProc
use PASCAL style call convention now.

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This is x64 version of unrar.dll.

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