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/*****************************************************************************/
/* CascLib.h Copyright (c) Ladislav Zezula 2014 */
/*---------------------------------------------------------------------------*/
/* CascLib library v 1.00 */
/* */
/* Author : Ladislav Zezula */
/* E-mail : ladik@zezula.net */
/* WWW : http://www.zezula.net */
/*---------------------------------------------------------------------------*/
/* Date Ver Who Comment */
/* -------- ---- --- ------- */
/* 29.04.14 1.00 Lad Created */
/*****************************************************************************/
#ifndef __CASCLIB_H__
#define __CASCLIB_H__
#ifdef _MSC_VER
#pragma warning(disable:4668) // 'XXX' is not defined as a preprocessor macro, replacing with '0' for '#if/#elif'
#pragma warning(disable:4820) // 'XXX' : '2' bytes padding added after data member 'XXX::yyy'
#endif
#include "CascPort.h"
#ifdef __cplusplus
extern "C" {
#endif
//-----------------------------------------------------------------------------
// Defines
#define CASCLIB_VERSION 0x0100 // Current version of CascLib (1.0)
#define CASCLIB_VERSION_STRING "1.00" // String version of CascLib version
#define ERROR_UNKNOWN_FILE_KEY 10001 // Returned by encrypted stream when can't find file key
#define ERROR_FILE_INCOMPLETE 10006 // The required file part is missing
// Values for CascOpenStorage
#define CASC_STOR_XXXXX 0x00000001 // Not used
// Values for CascOpenFile
#define CASC_FILE_XXXXX 0x00000001 // Not used
// Flags for file stream
#define BASE_PROVIDER_FILE 0x00000000 // Base data source is a file
#define BASE_PROVIDER_MAP 0x00000001 // Base data source is memory-mapped file
#define BASE_PROVIDER_HTTP 0x00000002 // Base data source is a file on web server
#define BASE_PROVIDER_MASK 0x0000000F // Mask for base provider value
#define STREAM_PROVIDER_FLAT 0x00000000 // Stream is linear with no offset mapping
#define STREAM_PROVIDER_PARTIAL 0x00000010 // Stream is partial file (.part)
#define STREAM_PROVIDER_ENCRYPTED 0x00000020 // Stream is an encrypted archive
#define STREAM_PROVIDER_BLOCK4 0x00000030 // 0x4000 per block, text MD5 after each block, max 0x2000 blocks per file
#define STREAM_PROVIDER_MASK 0x000000F0 // Mask for stream provider value
#define STREAM_FLAG_READ_ONLY 0x00000100 // Stream is read only
#define STREAM_FLAG_WRITE_SHARE 0x00000200 // Allow write sharing when open for write
#define STREAM_FLAG_USE_BITMAP 0x00000400 // If the file has a file bitmap, load it and use it
#define STREAM_OPTIONS_MASK 0x0000FF00 // Mask for stream options
#define STREAM_PROVIDERS_MASK 0x000000FF // Mask to get stream providers
#define STREAM_FLAGS_MASK 0x0000FFFF // Mask for all stream flags (providers+options)
#define CASC_LOCALE_ALL 0xFFFFFFFF
#define CASC_LOCALE_NONE 0x00000000
#define CASC_LOCALE_UNKNOWN1 0x00000001
#define CASC_LOCALE_ENUS 0x00000002
#define CASC_LOCALE_KOKR 0x00000004
#define CASC_LOCALE_UNKNOWN8 0x00000008
#define CASC_LOCALE_FRFR 0x00000010
#define CASC_LOCALE_DEDE 0x00000020
#define CASC_LOCALE_ZHCN 0x00000040
#define CASC_LOCALE_ESES 0x00000080
#define CASC_LOCALE_ZHTW 0x00000100
#define CASC_LOCALE_ENGB 0x00000200
#define CASC_LOCALE_ENCN 0x00000400
#define CASC_LOCALE_ENTW 0x00000800
#define CASC_LOCALE_ESMX 0x00001000
#define CASC_LOCALE_RURU 0x00002000
#define CASC_LOCALE_PTBR 0x00004000
#define CASC_LOCALE_ITIT 0x00008000
#define CASC_LOCALE_PTPT 0x00010000
#define MAX_CASC_KEY_LENGTH 0x10 // Maximum length of the key (equal to MD5 hash)
#ifndef MD5_HASH_SIZE
#define MD5_HASH_SIZE 0x10
#define MD5_STRING_SIZE 0x21
#endif
#ifndef SHA1_DIGEST_SIZE
#define SHA1_DIGEST_SIZE 0x14 // 160 bits
#endif
#ifndef LANG_NEUTRAL
#define LANG_NEUTRAL 0x00 // Neutral locale
#endif
// Return value for CascGetFileSize and CascSetFilePointer
#define CASC_INVALID_SIZE 0xFFFFFFFF
#define CASC_INVALID_POS 0xFFFFFFFF
// Flags for CascGetStorageInfo
#define CASC_FEATURE_LISTFILE 0x00000001 // The storage supports listfile
//-----------------------------------------------------------------------------
// Structures
typedef enum _CASC_STORAGE_INFO_CLASS
{
CascStorageFileCount,
CascStorageFeatures,
CascStorageInfoClassMax
} CASC_STORAGE_INFO_CLASS, *PCASC_STORAGE_INFO_CLASS;
typedef struct _QUERY_KEY
{
LPBYTE pbData;
DWORD cbData;
} QUERY_KEY, *PQUERY_KEY;
// Structure for SFileFindFirstFile and SFileFindNextFile
typedef struct _CASC_FIND_DATA
{
char szFileName[MAX_PATH]; // Full name of the found file
char * szPlainName; // Plain name of the found file
ULONGLONG FileNameHash; // File name hash
BYTE EncodingKey[MD5_HASH_SIZE]; // Encoding key
DWORD dwPackageIndex; // File package index (HOTS only)
DWORD dwLocaleFlags; // Locale flags (WoW only)
DWORD dwFileSize; // Size of the file
} CASC_FIND_DATA, *PCASC_FIND_DATA;
//-----------------------------------------------------------------------------
// Callback functions
typedef struct TFileStream TFileStream;
typedef void (WINAPI * STREAM_DOWNLOAD_CALLBACK)(void * pvUserData, ULONGLONG ByteOffset, DWORD dwTotalBytes);
//-----------------------------------------------------------------------------
// We have our own qsort implementation, optimized for sorting array of pointers
void qsort_pointer_array(void ** base, size_t num, int (*compare)(const void *, const void *, const void *), const void * context);
//-----------------------------------------------------------------------------
// Functions for storage manipulation
bool WINAPI CascOpenStorage(const TCHAR * szDataPath, DWORD dwFlags, HANDLE * phStorage);
bool WINAPI CascGetStorageInfo(HANDLE hStorage, CASC_STORAGE_INFO_CLASS InfoClass, void * pvStorageInfo, size_t cbStorageInfo, size_t * pcbLengthNeeded);
bool WINAPI CascCloseStorage(HANDLE hStorage);
bool WINAPI CascOpenFileByIndexKey(HANDLE hStorage, PQUERY_KEY pIndexKey, DWORD dwFlags, HANDLE * phFile);
bool WINAPI CascOpenFileByEncodingKey(HANDLE hStorage, PQUERY_KEY pEncodingKey, DWORD dwFlags, HANDLE * phFile);
bool WINAPI CascOpenFile(HANDLE hStorage, const char * szFileName, DWORD dwLocale, DWORD dwFlags, HANDLE * phFile);
DWORD WINAPI CascGetFileSize(HANDLE hFile, PDWORD pdwFileSizeHigh);
DWORD WINAPI CascSetFilePointer(HANDLE hFile, LONG lFilePos, LONG * plFilePosHigh, DWORD dwMoveMethod);
bool WINAPI CascReadFile(HANDLE hFile, void * lpBuffer, DWORD dwToRead, PDWORD pdwRead);
bool WINAPI CascCloseFile(HANDLE hFile);
HANDLE WINAPI CascFindFirstFile(HANDLE hStorage, const char * szMask, PCASC_FIND_DATA pFindData, const TCHAR * szListFile);
bool WINAPI CascFindNextFile(HANDLE hFind, PCASC_FIND_DATA pFindData);
bool WINAPI CascFindClose(HANDLE hFind);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // __CASCLIB_H__
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