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/*! \file byteswap.h */
#pragma once
#include <stdint.h>
#include <osmocom/core/endian.h>
/*! byte-swap a 32bit word
* \param[in] in to be swapped 32bit word
* \returns byte-swapped 32bit word */
static inline uint32_t osmo_swab32(uint32_t in)
{
uint32_t out;
out = (in & 0xff) << 24;
out |= (in & 0xff00) << 8;
out |= (in & 0xff0000) >> 8;
out |= (in & 0xff000000) >> 24;
return out;
}
/*! byte-swap a 16bit word
* \param[in] in to be swapped 16bit word
* \returns byte-swapped 16bit word */
static inline uint16_t osmo_swab16(uint16_t in)
{
uint16_t out;
out = (in & 0xff) << 8;
out |= (in & 0xff00) >> 8;
return out;
}
#ifdef OSMO_IS_LITTLE_ENDIAN
#define osmo_ntohl(x) osmo_swab32(x)
#define osmo_ntohs(x) osmo_swab16(x)
#define osmo_htonl(x) osmo_swab32(x)
#define osmo_htons(x) osmo_swab16(x)
#else
#define osmo_ntohl(x) (x)
#define osmo_ntohs(x) (x)
#define osmo_htonl(x) (x)
#define osmo_htons(x) (x)
#endif
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