// This file is under GNU General Public License 3.0

 // see LICENSE.txt

 #pragma once

 #include "pEpEngine.h"

 #ifdef __cplusplus

 extern "C" {

 #endif

 // this is a growing buffer, which is needed by the ASN.1 implementation

 // i.e. for encoding to XER

 typedef struct growing_buf {

     char *data;

     size_t size;

 } growing_buf_t;

 // new_growing_buf() - allocate a new growing buffer

 //

 //  return value:

 //      new buffer or NULL if out of memory

 growing_buf_t *new_growing_buf(void);

 // free_growing_buf() - free growing buffer

 //

 //  parameters:

 //      buf (in)            buffer to free

 void free_growing_buf(growing_buf_t *buf);

 // growing_buf_consume() - append new data to growing buffer

 //

 //  parameters:

 //      src (in)            new data

 //      size (in)           size of new data

 //      dst (in)            growing buffer where new data will be appended

 //

 //  return value:

 //      1 on succes, -1 on failure

 int growing_buf_consume(const void *src, size_t size, growing_buf_t *dst);

 #ifdef __cplusplus

 }

 #endif