/usr/include/aroarfw/byteorder.h is in aroarfw-dev 0.1~beta5-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2013
*
* This file is part of aroarfw, a RoarAudio framework for
* embedded systems (µControlers).
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3
* or (at your option) any later version as published by
* the Free Software Foundation.
*
* aroarfw is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _AROARFW_BYTEORDER_H_
#define _AROARFW_BYTEORDER_H_
/** \brief Convert a 16 bit integer into a 2 byte buffer in network byte order.
This function converts a 16 bit integer in host byte order
into network byte order and puts it into a 2 byte buffer.
\param buf The buffer to put the integer in
\param v The integer to put in the buffer
\return The integer in host byte order
*/
#define RBO_H2NB16(buf, v) ( \
((uint16_t)(((unsigned char*)(buf))[0] = ((uint16_t)(v) >> 8) & 0xFF) << 8) + \
(uint16_t)(((unsigned char*)(buf))[1] = (uint16_t)(v) & 0xFF) \
)
/** \brief Convert a 2 byte buffer into a 16 bit integer in host byte order.
This function converts a 2 byte buffer in network byte order into a
16 bit integer in host byte order.
\param buf The buffer to get the integer from
\return The integer in host byte order
*/
#define RBO_NB2H16(buf) ( \
((uint16_t)(((unsigned char*)(buf))[0]) << 8) + \
(uint16_t)(((unsigned char*)(buf))[1]) \
)
/** \brief Convert a 32 bit integer into a 4 byte buffer in network byte order.
This function converts a 32 bit integer in host byte order
into network byte order and puts it into a 4 byte buffer.
\param buf The buffer to put the integer in
\param v The integer to put in the buffer
\return The integer in host byte order
*/
#define RBO_H2NB32(buf, v) ( \
((uint32_t)(((unsigned char*)(buf))[0] = ((uint32_t)(v) >> 24) & 0xFF) << 24) + \
((uint32_t)(((unsigned char*)(buf))[1] = ((uint32_t)(v) >> 16) & 0xFF) << 16) + \
((uint32_t)(((unsigned char*)(buf))[2] = ((uint32_t)(v) >> 8) & 0xFF) << 8) + \
(uint32_t)(((unsigned char*)(buf))[3] = (uint32_t)(v) & 0xFF) \
)
/** \brief Convert a 4 byte buffer into a 32 bit integer in host byte order.
This function converts a 4 byte buffer in network byte order into a
32 bit integer in host byte order.
\param buf The buffer to get the integer from
\return The integer in host byte order
*/
#define RBO_NB2H32(buf) ( \
((uint32_t)(((unsigned char*)(buf))[0]) << 24) + \
((uint32_t)(((unsigned char*)(buf))[1]) << 16) + \
((uint32_t)(((unsigned char*)(buf))[2]) << 8) + \
(uint32_t)(((unsigned char*)(buf))[3]) \
)
#endif
//ll
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