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