/*
* AppleDouble.h
* -------------
*
* The header file for a stream based apple single/double encodor/decodor.
*
* 2aug95 mym created form MPack 1.5 src.
*
*/
#ifndef AppleDouble_h
#define AppleDouble_h
#include "xp.h"
#include "xp_file.h"
#include "msg.h"
#define NOERR 0
#define errDone 1
/* Done with current operation. */
#define errEOB 2
/* End of a buffer. */
#define errEOP 3
/* End of a Part. */
#define errMemoryAlloc MK_OUT_OF_MEMORY
#define errDataCrupt -1
#define errDiskFull MK_DISK_FULL
#define errFileOpen MK_UNABLE_TO_OPEN_TMP_FILE
#define errVersion -1
#define errFileWrite MK_MIME_ERROR_WRITING_FILE
#define errDecoding -1
#define errUsrCancel MK_INTERRUPTED
/*
** The envirment block data type.
*/
enum
{
kInit,
kDoingHeaderPortion,
kDoneHeaderPortion,
kDoingDataPortion,
kDoneDataPortion
};
typedef struct _appledouble_encode_object
{
char fname[64];
int32 dirId;
int16 vRefNum;
int16 fileId; /* the id for the open file (data/resource fork) */
int state;
int text_file_type; /* if the file has a text file type with it. */
char *boundary; /* the boundary string. */
int status; /* the error code if anyerror happens. */
char b_overflow[200];
int s_overflow;
int state64; /* the left over state of base64 enocding */
int ct; /* the character count of base64 encoding */
int c1, c2; /* the left of the last base64 encoding */
char *outbuff; /* the outbuff by the caller. */
int s_outbuff; /* the size of the buffer. */
int pos_outbuff; /* the offset in the current buffer. */
} appledouble_encode_object;
/* The possible content transfer encodings */
enum
{
kEncodeNone,
kEncodeQP,
kEncodeBase64
};
enum
{
kGeneralMine,
kAppleDouble,
kAppleSingle
};
enum
{
kInline,
kDontCare
};
enum
{
kHeaderPortion,
kDataPortion
};
/* the decode states. */
enum
{
kBeginParseHeader = 3,
kParsingHeader,
kBeginSeekBoundary,
kSeekingBoundary,
kBeginHeaderPortion,
kProcessingHeaderPortion,
kBeginDataPortion,
kProcessingDataPortion,
kFinishing
};
typedef struct _appledouble_decode_object
{
int is_binary;
int is_apple_single; /* if the object encoded is in apple single */
int write_as_binhex;
int messagetype;
char* boundary0; /* the boundary for the enclosure. */
int deposition; /* the deposition. */
int encoding; /* the encoding method. */
int which_part;
char fname[64];
#ifdef XP_MAC
int16 vRefNum;
int32 dirId;
int16 fileId; /* the id for the open file (data/resource fork) */
#endif
XP_File fd; /* the fd for data fork work. */
MWContext *context;
NET_StreamClass* binhex_stream; /* the stream to output as binhex output.*/
int state;
int rksize; /* the resource fork size count. */
int dksize; /* the data fork size count. */
int status; /* the error code if anyerror happens. */
char b_leftover[256];
int s_leftover;
int encode; /* the encode type of the message. */
int state64; /* the left over state of base64 enocding */
int left; /* the character count of base64 encoding */
int c[4]; /* the left of the last base64 encoding */
char *inbuff; /* the outbuff by the caller. */
int s_inbuff; /* the size of the buffer. */
int pos_inbuff; /* the offset in the current buffer. */
char* tmpfname; /* the temp file to hold the decode data fork */
/* when doing the binhex exporting. */
XP_File tmpfd;
int32 data_size; /* the size of the data in the tmp file. */
} appledouble_decode_object;
/*
** The protypes.
*/
XP_BEGIN_PROTOS
int ap_encode_init(appledouble_encode_object *p_ap_encode_obj,
char* fname,
char* separator);
int ap_encode_next(appledouble_encode_object* p_ap_encode_obj,
char *to_buff,
int32 buff_size,
int32* real_size);
int ap_encode_end(appledouble_encode_object* p_ap_encode_obj,
XP_Bool is_aborting);
int ap_decode_init(appledouble_decode_object* p_ap_decode_obj,
XP_Bool is_apple_single,
XP_Bool write_as_bin_hex,
void *closure);
int ap_decode_next(appledouble_decode_object* p_ap_decode_obj,
char *in_buff,
int32 buff_size);
int ap_decode_end(appledouble_decode_object* p_ap_decode_obj,
XP_Bool is_aborting);
XP_END_PROTOS
#endif