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/**
* ms-ole.h: MS Office OLE support for Gnumeric
*
* Authors:
* Michael Meeks (michael@imaginator.com)
* Arturo Tena (arturo@directmail.org)
*
* Copyright 1998-2001 Ximian, Inc., Arturo Tena
*
* Adapted for gretl by Allin Cottrell
*
**/
#ifndef MS_OLE_H
#define MS_OLE_H
/* Allin Cottrell modifications here */
#ifndef _WIN32
# include <fcntl.h> /* for mode_t */
# include <sys/types.h>
#else
# include <sys/types.h>
typedef /* unsigned */ long caddr_t;
#endif
#include <glib.h>
typedef enum {
MS_OLE_ERR_OK,
MS_OLE_ERR_EXIST,
MS_OLE_ERR_INVALID,
MS_OLE_ERR_FORMAT,
MS_OLE_ERR_PERM,
MS_OLE_ERR_MEM,
MS_OLE_ERR_SPACE,
MS_OLE_ERR_NOTEMPTY,
MS_OLE_ERR_BADARG
} MsOleErr;
typedef enum {
MsOleSeekSet,
MsOleSeekCur,
MsOleSeekEnd
} MsOleSeek;
typedef enum {
MsOleStorageT = 1,
MsOleStreamT = 2,
MsOleRootT = 5
} MsOleType;
typedef guint32 MsOlePos;
typedef gint32 MsOleSPos;
typedef struct _MsOle MsOle;
typedef struct _MsOleStat MsOleStat;
typedef struct _MsOleStream MsOleStream;
struct _MsOleStat {
MsOleType type;
MsOlePos size;
};
struct _MsOleStream {
MsOlePos size;
gint (*read_copy) (MsOleStream *stream,
guint8 *ptr,
MsOlePos length);
guint8 * (*read_ptr) (MsOleStream *stream,
MsOlePos length);
MsOleSPos (*lseek) (MsOleStream *stream,
MsOleSPos bytes,
MsOleSeek type);
MsOlePos (*tell) (MsOleStream *stream);
MsOlePos (*write) (MsOleStream *stream,
guint8 *ptr,
MsOlePos length);
/**
* Private.
**/
enum {
MsOleSmallBlock,
MsOleLargeBlock
} type;
MsOle *file;
void *pps; /* Straight PPS */
GArray *blocks; /* A list of the blocks in the file
if NULL: no file */
MsOlePos position; /* Current offset into file.
Points to the next byte to read */
};
MsOleErr ms_ole_open (MsOle **fs, const char *path);
void ms_ole_destroy (MsOle **fs);
#define MS_OLE_GET_GUINT8(p) (*((const guint8 *)(p) + 0))
#define MS_OLE_GET_GUINT16(p) (guint16)(*((const guint8 *)(p)+0) | \
(*((const guint8 *)(p)+1)<<8))
#define MS_OLE_GET_GUINT32(p) (guint32)(*((const guint8 *)(p)+0) | \
(*((const guint8 *)(p)+1)<<8) | \
(*((const guint8 *)(p)+2)<<16) | \
(*((const guint8 *)(p)+3)<<24))
#define MS_OLE_GET_GUINT64(p) (MS_OLE_GET_GUINT32(p) | \
(((guint32)MS_OLE_GET_GUINT32((const guint8 *)(p)+4))<<32))
MsOleErr ms_ole_stream_open_workbook (MsOleStream ** const stream,
MsOle *fs);
MsOleErr ms_ole_stream_close (MsOleStream ** const stream);
MsOlePos ms_ole_stream_position (const MsOleStream *s);
#endif /* MS_OLE_H */
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