ose_slip.h

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/*
  Copyright (c) 2019-22 John MacCallum Permission is hereby granted,
  free of charge, to any person obtaining a copy of this software
  and associated documentation files (the "Software"), to deal in
  the Software without restriction, including without limitation the
  rights to use, copy, modify, merge, publish, distribute,
  sublicense, and/or sell copies of the Software, and to permit
  persons to whom the Software is furnished to do so, subject to the
  following conditions:
 
  The above copyright notice and this permission notice shall be
  included in all copies or substantial portions of the Software.
 
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.
*/

 
#ifndef OSE_SLIP_H
#define OSE_SLIP_H
 
#include "ose.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define OSE_SLIP_END 0300
#define OSE_SLIP_ESC 0333
#define OSE_SLIP_ESC_END 0334
#define OSE_SLIP_ESC_ESC 0335

struct ose_SLIPBuf
{
    uint8_t *buf;           
    int32_t buflen;         
    int32_t count;          
    int32_t state;          
    int havenullbyte;       
    int textmode;
};

struct ose_SLIPBuf ose_initSLIPBuf(uint8_t *buf, int32_t buflen);

int ose_SLIPDecode(uint8_t c, struct ose_SLIPBuf *s);

int32_t ose_SLIPEncode(const uint8_t * const src, int32_t srclen,
                       uint8_t *dest, int32_t destlen);
 
#ifdef __cplusplus
}
#endif
 
#endif