зеркало из https://github.com/mozilla/gecko-dev.git
185 строки
4.7 KiB
C
185 строки
4.7 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* The head file for Bin Hex 4.0 encode/decode
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* -------------------------------------------
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*
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* 10sep95 mym created
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*/
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#ifndef binhex_h
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#define binhex_h
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#ifdef XP_MAC
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#if PRAGMA_ALIGN_SUPPORTED
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#pragma options align=mac68k
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#endif
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#endif /* XP_MAC */
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#define BINHEX_STATE_START 0
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#define BINHEX_STATE_FNAME 1
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#define BINHEX_STATE_HEADER 2
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#define BINHEX_STATE_HCRC 3
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#define BINHEX_STATE_DFORK 4
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#define BINHEX_STATE_DCRC 5
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#define BINHEX_STATE_RFORK 6
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#define BINHEX_STATE_RCRC 7
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#define BINHEX_STATE_FINISH 8
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#define BINHEX_STATE_DONE 9
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/* #define BINHEX_STATE_ERROR 10 */
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/*
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** The Definitions for the binhex encoder
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*/
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typedef struct _binhex_header
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{
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uint32 type, creator;
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uint16 flags;
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int32 dlen, rlen ;
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} binhex_header;
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typedef struct _binhex_encode_object
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{
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int state; /* progress state. */
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int state86; /* binhex encode state. */
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unsigned long CRC; /* accumulated CRC */
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int line_length; /* the line length count */
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char saved_bits;
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int s_inbuff; /* the inbuff size */
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int pos_inbuff; /* the inbuff position */
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char* inbuff; /* the inbuff pool */
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int s_outbuff; /* the outbuff size */
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int pos_outbuff; /* the outbuff position */
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char* outbuff; /* the outbuf pool */
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int s_overflow; /* the real size of overflow */
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char overflow[32]; /* a small overflow buffer */
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char c[2];
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char newline[4]; /* the new line char seq. */
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/* -- for last fix up. -- */
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char name[64];
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binhex_header head;
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} binhex_encode_object;
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/*
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** The defination for the binhex decoder.
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** NOTE: This define is for Mac only.
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*/
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typedef union
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{
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unsigned char c[4];
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uint32 val;
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} longbuf;
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#define MAX_BUFF_SIZE 256
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typedef struct _binhex_decode_object
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{
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int state; /* current state */
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uint16 CRC; /* cumulative CRC */
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uint16 fileCRC; /* CRC value from file */
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longbuf octetbuf; /* buffer for decoded 6-bit values */
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int16 octetin; /* current input position in octetbuf */
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int16 donepos; /* ending position in octetbuf */
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int16 inCRC; /* flag set when reading a CRC */
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int32 count; /* generic counter */
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int16 marker; /* flag indicating maker */
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unsigned char rlebuf; /* buffer for last run length encoding value */
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binhex_header head; /* buffer for header */
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#ifdef XP_MAC
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FSSpec* mSpec;
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char name[64]; /* fsspec for the output file */
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int16 vRefNum;
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int32 parID ;
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int16 fileId; /* the refnum of the output file */
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#else
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char *name; /* file name for the output file in non-mac OS */
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XP_File fileId; /* the file if for the outpur file. non-mac OS */
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#endif
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MWContext* context; /* context for call back function. */
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int32 s_inbuff; /* the valid size of the inbuff */
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int32 pos_inbuff; /* the index of the inbuff. */
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char* inbuff; /* the inbuff pointer. */
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int32 pos_outbuff; /* the position of the out buff. */
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char outbuff[MAX_BUFF_SIZE];
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} binhex_decode_object;
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XP_BEGIN_PROTOS
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/*
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** The binhex file encode prototypes.
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*/
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int binhex_encode_init(binhex_encode_object *p_bh_encode_obj);
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int binhex_encode_next(binhex_encode_object *p_bh_encode_obj,
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char *in_buff,
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int32 in_size,
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char *out_buff,
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int32 buff_size,
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int32 *real_size);
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int binhex_encode_end (binhex_encode_object *p_bh_encode_obj,
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XP_Bool is_aborting);
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int binhex_reencode_head(
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binhex_encode_object *p_bh_encode_obj,
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char* outbuff,
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int32 buff_size,
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int32* real_size);
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/*
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** The binhex stream decode prototypes.
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*/
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int binhex_decode_init(binhex_decode_object *p_bh_decode_env,
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MWContext *context);
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int binhex_decode_next(binhex_decode_object *p_bh_decode_env,
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const char *in_buff,
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int32 buff_size);
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int binhex_decode_end (binhex_decode_object *p_bh_decode_env,
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XP_Bool is_aborting);
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XP_END_PROTOS
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#ifdef XP_MAC
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#if PRAGMA_ALIGN_SUPPORTED
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#pragma options align=reset
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#endif
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#endif /* XP_MAC */
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#endif /* binhex_h */
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