diff options
Diffstat (limited to 'libs/pak/unzip.h')
| -rwxr-xr-x | libs/pak/unzip.h | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/libs/pak/unzip.h b/libs/pak/unzip.h new file mode 100755 index 0000000..d5c165d --- /dev/null +++ b/libs/pak/unzip.h @@ -0,0 +1,300 @@ +
+#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 void* unzFile;
+#endif
+
+
+/* tm_unz contain date/time info */
+typedef struct tm_unz_s
+{
+ unsigned int tm_sec; /* seconds after the minute - [0,59] */
+ unsigned int tm_min; /* minutes after the hour - [0,59] */
+ unsigned int tm_hour; /* hours since midnight - [0,23] */
+ unsigned int tm_mday; /* day of the month - [1,31] */
+ unsigned int tm_mon; /* months since January - [0,11] */
+ unsigned int 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_info_s
+{
+ unsigned long number_entry; /* total number of entries in the central dir on this disk */
+ unsigned long 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_info_s
+{
+ unsigned long version; /* version made by 2 unsigned chars */
+ unsigned long version_needed; /* version needed to extract 2 unsigned chars */
+ unsigned long flag; /* general purpose bit flag 2 unsigned chars */
+ unsigned long compression_method; /* compression method 2 unsigned chars */
+ unsigned long dosDate; /* last mod file date in Dos fmt 4 unsigned chars */
+ unsigned long crc; /* crc-32 4 unsigned chars */
+ unsigned long compressed_size; /* compressed size 4 unsigned chars */
+ unsigned long uncompressed_size; /* uncompressed size 4 unsigned chars */
+ unsigned long size_filename; /* filename length 2 unsigned chars */
+ unsigned long size_file_extra; /* extra field length 2 unsigned chars */
+ unsigned long size_file_comment; /* file comment length 2 unsigned chars */
+
+ unsigned long disk_num_start; /* disk number start 2 unsigned chars */
+ unsigned long internal_fa; /* internal file attributes 2 unsigned chars */
+ unsigned long external_fa; /* external file attributes 4 unsigned chars */
+
+ tm_unz tmu_date;
+} unz_file_info;
+
+/* unz_file_info_interntal contain internal info about a file in zipfile*/
+typedef struct unz_file_info_internal_s
+{
+ unsigned long offset_curfile;/* relative offset of static header 4 unsigned chars */
+} unz_file_info_internal;
+
+typedef void* (*alloc_func) (void* opaque, unsigned int items, unsigned int size);
+typedef void (*free_func) (void* opaque, void* address);
+
+struct internal_state;
+
+typedef struct z_stream_s {
+ unsigned char *next_in; /* next input unsigned char */
+ unsigned int avail_in; /* number of unsigned chars available at next_in */
+ unsigned long total_in; /* total nb of input unsigned chars read so */
+
+ unsigned char *next_out; /* next output unsigned char should be put there */
+ unsigned int avail_out; /* remaining free space at next_out */
+ unsigned long total_out; /* total nb of unsigned chars output so */
+
+ char *msg; /* last error message, NULL if no error */
+ struct internal_state *state; /* not visible by applications */
+
+ alloc_func zalloc; /* used to allocate the internal state */
+ free_func zfree; /* used to free the internal state */
+ unsigned char* opaque; /* private data object passed to zalloc and zfree */
+
+ int data_type; /* best guess about the data type: ascii or binary */
+ unsigned long adler; /* adler32 value of the uncompressed data */
+ unsigned long reserved; /* reserved for future use */
+} z_stream;
+
+typedef z_stream *z_streamp;
+
+
+/* file_in_zip_read_info_s contain internal information about a file in zipfile,
+ when reading and decompress it */
+typedef struct
+{
+ char *read_buffer; /* internal buffer for compressed data */
+ z_stream stream; /* zLib stream structure for inflate */
+
+ unsigned long pos_in_zipfile; /* position in unsigned char on the zipfile, for fseek*/
+ unsigned long stream_initialised; /* flag set if stream structure is initialised*/
+
+ unsigned long offset_local_extrafield;/* offset of the static extra field */
+ unsigned int size_local_extrafield;/* size of the static extra field */
+ unsigned long pos_local_extrafield; /* position in the static extra field in read*/
+
+ unsigned long crc32; /* crc32 of all data uncompressed */
+ unsigned long crc32_wait; /* crc32 we must obtain after decompress all */
+ unsigned long rest_read_compressed; /* number of unsigned char to be decompressed */
+ unsigned long rest_read_uncompressed;/*number of unsigned char to be obtained after decomp*/
+ FILE* file; /* io structore of the zipfile */
+ unsigned long compression_method; /* compression method (0==store) */
+ unsigned long byte_before_the_zipfile;/* unsigned char before the zipfile, (>0 for sfx)*/
+} file_in_zip_read_info_s;
+
+
+/* unz_s contain internal information about the zipfile
+*/
+typedef struct
+{
+ FILE* file; /* io structore of the zipfile */
+ unz_global_info gi; /* public global information */
+ unsigned long byte_before_the_zipfile;/* unsigned char before the zipfile, (>0 for sfx)*/
+ unsigned long num_file; /* number of the current file in the zipfile*/
+ unsigned long pos_in_central_dir; /* pos of the current file in the central dir*/
+ unsigned long current_file_ok; /* flag about the usability of the current file*/
+ unsigned long central_pos; /* position of the beginning of the central dir*/
+
+ unsigned long size_central_dir; /* size of the central directory */
+ unsigned long offset_central_dir; /* offset of start of central directory with
+ respect to the starting disk number */
+
+ unz_file_info cur_file_info; /* public info about the current file in zip*/
+ unz_file_info_internal cur_file_info_internal; /* private info about it*/
+ file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
+ file if we are decompressing it */
+} unz_s;
+
+#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)
+
+#define UNZ_CASESENSITIVE 1
+#define UNZ_NOTCASESENSITIVE 2
+#define UNZ_OSDEFAULTCASE 0
+
+extern int unzStringFileNameCompare (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 unzOpen (const char *path);
+extern unzFile unzReOpen (const char* path, unzFile file);
+
+/*
+ Open a Zip file. path contain the full pathname (by example,
+ on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
+ "zlib/zlib111.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.
+*/
+
+extern int unzClose (unzFile file);
+
+/*
+ Close a ZipFile opened with unzipOpen.
+ If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
+ these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
+ return UNZ_OK if there is no problem. */
+
+extern int unzGetGlobalInfo (unzFile file, unz_global_info *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 unzGetGlobalComment (unzFile file, char *szComment, unsigned long 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 unsigned char copied or an error code <0
+*/
+
+
+/***************************************************************************/
+/* Unzip package allow you browse the directory of the zipfile */
+
+extern int unzGoToFirstFile (unzFile file);
+
+/*
+ Set the current file of the zipfile to the first file.
+ return UNZ_OK if there is no problem
+*/
+
+extern int unzGoToNextFile (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 unzLocateFile (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
+*/
+
+
+extern int unzGetCurrentFileInfo (unzFile file, unz_file_info *pfile_info, char *szFileName, unsigned long fileNameBufferSize, void *extraField, unsigned long extraFieldBufferSize, char *szComment, unsigned long 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)
+*/
+
+/***************************************************************************/
+/* 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 unzOpenCurrentFile (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 unzCloseCurrentFile (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 unzReadCurrentFile (unzFile file, void* buf, unsigned len);
+
+/*
+ Read unsigned chars from the current file (opened by unzOpenCurrentFile)
+ buf contain buffer where data must be copied
+ len the size of buf.
+
+ return the number of unsigned char copied if somes unsigned chars 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 long unztell(unzFile file);
+
+/*
+ Give the current position in uncompressed data
+*/
+
+extern int unzeof (unzFile file);
+
+/*
+ return 1 if the end of file was reached, 0 elsewhere
+*/
+
+extern int unzGetLocalExtrafield (unzFile file, void* 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 unsigned chars copied in buf, or (if <0)
+ the error code
+*/
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