Packages

circuits_uart

1.6.0
1.6.0 1.5.5 1.5.4 1.5.3 1.5.2 1.5.1 1.5.0 1.4.5 1.4.4 1.4.3 1.4.2 1.4.1 1.4.0 1.3.2 1.3.1 1.3.0

Discover and use UARTs and serial ports in Elixir

HexDocs

Current section

Files

Jump to
Readme
16 Versions
1 Dependency
Dependants
Files
Activity
circuits_uart src ei_copy decode_version.c
Raw

src/ei_copy/decode_version.c 

// SPDX-FileCopyrightText: Ericsson AB 1998-2009. All Rights Reserved.

//

// SPDX-License-Identifier: Apache-2.0

#include "eidef.h"

#include "eiext.h"

#include "putget.h"



/* remove version identifier from the start of the buffer */

int ei_decode_version(const char *buf, int *index, int *version)

{

  const char *s = buf + *index;

  const char *s0 = s;

  int v;

  

  v = get8(s);

  if (version) *version = v;

  if (v != ERL_VERSION_MAGIC)

    return -1;

  

  *index += s-s0;

  

  return 0;

}