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authorrootavish <[email protected]>2014-05-30 00:11:14 +0530
committerrootavish <[email protected]>2014-05-30 00:11:14 +0530
commit070a26ed403e9a0c330ee7901c5b85394317ef77 (patch)
tree89e5d8ac085a519672b673d276dbc1837d3e96f0 /backend/epub/unzip.h
parent0a4d3f34a8aee74019759ace24f84672a98122b4 (diff)
downloadatril-070a26ed403e9a0c330ee7901c5b85394317ef77.tar.bz2
atril-070a26ed403e9a0c330ee7901c5b85394317ef77.tar.xz
Added functions to extract epub archive,fixed header
In this commit i added functionality to extract an epub archive to a temporary location.Again i tried to keep the design modular. This will be changed as changes come along. I also fixed the header to the standard atril backend header. Performed some code cleaning, naming functions as in the atril style of coding.
Diffstat (limited to 'backend/epub/unzip.h')
-rw-r--r--backend/epub/unzip.h437
1 files changed, 437 insertions, 0 deletions
diff --git a/backend/epub/unzip.h b/backend/epub/unzip.h
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+/* unzip.h -- IO for uncompress .zip files using zlib
+ Version 1.1, February 14h, 2010
+ part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+ Modifications of Unzip for Zip64
+ Copyright (C) 2007-2008 Even Rouault
+
+ Modifications for Zip64 support on both zip and unzip
+ Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+ For more info read MiniZip_info.txt
+
+ ---------------------------------------------------------------------------------
+
+ Condition of use and distribution are the same than zlib :
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ ---------------------------------------------------------------------------------
+
+ Changes
+
+ See header of unzip64.c
+
+*/
+
+#ifndef _unz64_H
+#define _unz64_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef _ZLIB_H
+#include "zlib.h"
+#endif
+
+#ifndef _ZLIBIOAPI_H
+#include "ioapi.h"
+#endif
+
+#ifdef HAVE_BZIP2
+#include "bzlib.h"
+#endif
+
+#define Z_BZIP2ED 12
+
+#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
+/* like the STRICT of WIN32, we define a pointer that cannot be converted
+ from (void*) without cast */
+typedef struct TagunzFile__ { int unused; } unzFile__;
+typedef unzFile__ *unzFile;
+#else
+typedef voidp unzFile;
+#endif
+
+
+#define UNZ_OK (0)
+#define UNZ_END_OF_LIST_OF_FILE (-100)
+#define UNZ_ERRNO (Z_ERRNO)
+#define UNZ_EOF (0)
+#define UNZ_PARAMERROR (-102)
+#define UNZ_BADZIPFILE (-103)
+#define UNZ_INTERNALERROR (-104)
+#define UNZ_CRCERROR (-105)
+
+/* tm_unz contain date/time info */
+typedef struct tm_unz_s
+{
+ uInt tm_sec; /* seconds after the minute - [0,59] */
+ uInt tm_min; /* minutes after the hour - [0,59] */
+ uInt tm_hour; /* hours since midnight - [0,23] */
+ uInt tm_mday; /* day of the month - [1,31] */
+ uInt tm_mon; /* months since January - [0,11] */
+ uInt tm_year; /* years - [1980..2044] */
+} tm_unz;
+
+/* unz_global_info structure contain global data about the ZIPfile
+ These data comes from the end of central dir */
+typedef struct unz_global_info64_s
+{
+ ZPOS64_T number_entry; /* total number of entries in
+ the central dir on this disk */
+ uLong size_comment; /* size of the global comment of the zipfile */
+} unz_global_info64;
+
+typedef struct unz_global_info_s
+{
+ uLong number_entry; /* total number of entries in
+ the central dir on this disk */
+ uLong size_comment; /* size of the global comment of the zipfile */
+} unz_global_info;
+
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_info64_s
+{
+ uLong version; /* version made by 2 bytes */
+ uLong version_needed; /* version needed to extract 2 bytes */
+ uLong flag; /* general purpose bit flag 2 bytes */
+ uLong compression_method; /* compression method 2 bytes */
+ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
+ uLong crc; /* crc-32 4 bytes */
+ ZPOS64_T compressed_size; /* compressed size 8 bytes */
+ ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
+ uLong size_filename; /* filename length 2 bytes */
+ uLong size_file_extra; /* extra field length 2 bytes */
+ uLong size_file_comment; /* file comment length 2 bytes */
+
+ uLong disk_num_start; /* disk number start 2 bytes */
+ uLong internal_fa; /* internal file attributes 2 bytes */
+ uLong external_fa; /* external file attributes 4 bytes */
+
+ tm_unz tmu_date;
+} unz_file_info64;
+
+typedef struct unz_file_info_s
+{
+ uLong version; /* version made by 2 bytes */
+ uLong version_needed; /* version needed to extract 2 bytes */
+ uLong flag; /* general purpose bit flag 2 bytes */
+ uLong compression_method; /* compression method 2 bytes */
+ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
+ uLong crc; /* crc-32 4 bytes */
+ uLong compressed_size; /* compressed size 4 bytes */
+ uLong uncompressed_size; /* uncompressed size 4 bytes */
+ uLong size_filename; /* filename length 2 bytes */
+ uLong size_file_extra; /* extra field length 2 bytes */
+ uLong size_file_comment; /* file comment length 2 bytes */
+
+ uLong disk_num_start; /* disk number start 2 bytes */
+ uLong internal_fa; /* internal file attributes 2 bytes */
+ uLong external_fa; /* external file attributes 4 bytes */
+
+ tm_unz tmu_date;
+} unz_file_info;
+
+extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
+ const char* fileName2,
+ int iCaseSensitivity));
+/*
+ Compare two filename (fileName1,fileName2).
+ If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+ If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+ or strcasecmp)
+ If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+ (like 1 on Unix, 2 on Windows)
+*/
+
+
+extern unzFile ZEXPORT unzOpen OF((const char *path));
+extern unzFile ZEXPORT unzOpen64 OF((const void *path));
+/*
+ Open a Zip file. path contain the full pathname (by example,
+ on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer
+ "zlib/zlib113.zip".
+ If the zipfile cannot be opened (file don't exist or in not valid), the
+ return value is NULL.
+ Else, the return value is a unzFile Handle, usable with other function
+ of this unzip package.
+ the "64" function take a const void* pointer, because the path is just the
+ value passed to the open64_file_func callback.
+ Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path
+ is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char*
+ does not describe the reality
+*/
+
+
+extern unzFile ZEXPORT unzOpen2 OF((const char *path,
+ zlib_filefunc_def* pzlib_filefunc_def));
+/*
+ Open a Zip file, like unzOpen, but provide a set of file low level API
+ for read/write the zip file (see ioapi.h)
+*/
+
+extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
+ zlib_filefunc64_def* pzlib_filefunc_def));
+/*
+ Open a Zip file, like unz64Open, but provide a set of file low level API
+ for read/write the zip file (see ioapi.h)
+*/
+
+extern int ZEXPORT unzClose OF((unzFile file));
+/*
+ Close a ZipFile opened with unzOpen.
+ If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+ these files MUST be closed with unzCloseCurrentFile before call unzClose.
+ return UNZ_OK if there is no problem. */
+
+extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
+ unz_global_info *pglobal_info));
+
+extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file,
+ unz_global_info64 *pglobal_info));
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem. */
+
+
+extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
+ char *szComment,
+ uLong uSizeBuf));
+/*
+ Get the global comment string of the ZipFile, in the szComment buffer.
+ uSizeBuf is the size of the szComment buffer.
+ return the number of byte copied or an error code <0
+*/
+
+
+/***************************************************************************/
+/* Unzip package allow you browse the directory of the zipfile */
+
+extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
+/*
+ Set the current file of the zipfile to the first file.
+ return UNZ_OK if there is no problem
+*/
+
+extern int ZEXPORT unzGoToNextFile OF((unzFile file));
+/*
+ Set the current file of the zipfile to the next file.
+ return UNZ_OK if there is no problem
+ return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+
+extern int ZEXPORT unzLocateFile OF((unzFile file,
+ const char *szFileName,
+ int iCaseSensitivity));
+/*
+ Try locate the file szFileName in the zipfile.
+ For the iCaseSensitivity signification, see unzStringFileNameCompare
+
+ return value :
+ UNZ_OK if the file is found. It becomes the current file.
+ UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+
+
+/* ****************************************** */
+/* Ryan supplied functions */
+/* unz_file_info contain information about a file in the zipfile */
+typedef struct unz_file_pos_s
+{
+ uLong pos_in_zip_directory; /* offset in zip file directory */
+ uLong num_of_file; /* # of file */
+} unz_file_pos;
+
+extern int ZEXPORT unzGetFilePos(
+ unzFile file,
+ unz_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos(
+ unzFile file,
+ unz_file_pos* file_pos);
+
+typedef struct unz64_file_pos_s
+{
+ ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */
+ ZPOS64_T num_of_file; /* # of file */
+} unz64_file_pos;
+
+extern int ZEXPORT unzGetFilePos64(
+ unzFile file,
+ unz64_file_pos* file_pos);
+
+extern int ZEXPORT unzGoToFilePos64(
+ unzFile file,
+ const unz64_file_pos* file_pos);
+
+/* ****************************************** */
+
+extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file,
+ unz_file_info64 *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+
+extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
+ unz_file_info *pfile_info,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+/*
+ Get Info about the current file
+ if pfile_info!=NULL, the *pfile_info structure will contain somes info about
+ the current file
+ if szFileName!=NULL, the filemane string will be copied in szFileName
+ (fileNameBufferSize is the size of the buffer)
+ if extraField!=NULL, the extra field information will be copied in extraField
+ (extraFieldBufferSize is the size of the buffer).
+ This is the Central-header version of the extra field
+ if szComment!=NULL, the comment string of the file will be copied in szComment
+ (commentBufferSize is the size of the buffer)
+*/
+
+
+/** Addition for GDAL : START */
+
+extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file));
+
+/** Addition for GDAL : END */
+
+
+/***************************************************************************/
+/* for reading the content of the current zipfile, you can open it, read data
+ from it, and close it (you can close it before reading all the file)
+ */
+
+extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
+/*
+ Open for reading data the current file in the zipfile.
+ If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file,
+ const char* password));
+/*
+ Open for reading data the current file in the zipfile.
+ password is a crypting password
+ If there is no error, the return value is UNZ_OK.
+*/
+
+extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file,
+ int* method,
+ int* level,
+ int raw));
+/*
+ Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+ if raw==1
+ *method will receive method of compression, *level will receive level of
+ compression
+ note : you can set level parameter as NULL (if you did not want known level,
+ but you CANNOT set method parameter as NULL
+*/
+
+extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
+ int* method,
+ int* level,
+ int raw,
+ const char* password));
+/*
+ Same than unzOpenCurrentFile, but open for read raw the file (not uncompress)
+ if raw==1
+ *method will receive method of compression, *level will receive level of
+ compression
+ note : you can set level parameter as NULL (if you did not want known level,
+ but you CANNOT set method parameter as NULL
+*/
+
+
+extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
+/*
+ Close the file in zip opened with unzOpenCurrentFile
+ Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+
+extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
+ voidp buf,
+ unsigned len));
+/*
+ Read bytes from the current file (opened by unzOpenCurrentFile)
+ buf contain buffer where data must be copied
+ len the size of buf.
+
+ return the number of byte copied if somes bytes are copied
+ return 0 if the end of file was reached
+ return <0 with error code if there is an error
+ (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+
+extern z_off_t ZEXPORT unztell OF((unzFile file));
+
+extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
+/*
+ Give the current position in uncompressed data
+*/
+
+extern int ZEXPORT unzeof OF((unzFile file));
+/*
+ return 1 if the end of file was reached, 0 elsewhere
+*/
+
+extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
+ voidp buf,
+ unsigned len));
+/*
+ Read extra field from the current file (opened by unzOpenCurrentFile)
+ This is the local-header version of the extra field (sometimes, there is
+ more info in the local-header version than in the central-header)
+
+ if buf==NULL, it return the size of the local extra field
+
+ if buf!=NULL, len is the size of the buffer, the extra header is copied in
+ buf.
+ the return value is the number of bytes copied in buf, or (if <0)
+ the error code
+*/
+
+/***************************************************************************/
+
+/* Get the current file offset */
+extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
+extern uLong ZEXPORT unzGetOffset (unzFile file);
+
+/* Set the current file offset */
+extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
+extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _unz64_H */