c4e20cad00
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
208 lines
5.0 KiB
C
208 lines
5.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2002 Thomas Moestl <tmm@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_ENDIAN_H_
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#define _SYS_ENDIAN_H_
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#include <sys/cdefs.h>
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#include <sys/_types.h>
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#include <machine/endian.h>
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#ifndef _UINT8_T_DECLARED
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typedef __uint8_t uint8_t;
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#define _UINT8_T_DECLARED
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#endif
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#ifndef _UINT16_T_DECLARED
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typedef __uint16_t uint16_t;
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#define _UINT16_T_DECLARED
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#endif
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#ifndef _UINT32_T_DECLARED
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typedef __uint32_t uint32_t;
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#define _UINT32_T_DECLARED
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#endif
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#ifndef _UINT64_T_DECLARED
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typedef __uint64_t uint64_t;
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#define _UINT64_T_DECLARED
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#endif
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/*
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* General byte order swapping functions.
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*/
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#define bswap16(x) __bswap16(x)
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#define bswap32(x) __bswap32(x)
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#define bswap64(x) __bswap64(x)
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/*
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* Host to big endian, host to little endian, big endian to host, and little
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* endian to host byte order functions as detailed in byteorder(9).
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*/
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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#define htobe16(x) bswap16((x))
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#define htobe32(x) bswap32((x))
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#define htobe64(x) bswap64((x))
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#define htole16(x) ((uint16_t)(x))
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#define htole32(x) ((uint32_t)(x))
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#define htole64(x) ((uint64_t)(x))
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#define be16toh(x) bswap16((x))
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#define be32toh(x) bswap32((x))
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#define be64toh(x) bswap64((x))
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#define le16toh(x) ((uint16_t)(x))
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#define le32toh(x) ((uint32_t)(x))
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#define le64toh(x) ((uint64_t)(x))
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#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
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#define htobe16(x) ((uint16_t)(x))
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#define htobe32(x) ((uint32_t)(x))
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#define htobe64(x) ((uint64_t)(x))
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#define htole16(x) bswap16((x))
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#define htole32(x) bswap32((x))
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#define htole64(x) bswap64((x))
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#define be16toh(x) ((uint16_t)(x))
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#define be32toh(x) ((uint32_t)(x))
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#define be64toh(x) ((uint64_t)(x))
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#define le16toh(x) bswap16((x))
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#define le32toh(x) bswap32((x))
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#define le64toh(x) bswap64((x))
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#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
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/* Alignment-agnostic encode/decode bytestream to/from little/big endian. */
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static __inline uint16_t
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be16dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return ((p[0] << 8) | p[1]);
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}
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static __inline uint32_t
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be32dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return (((unsigned)p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
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}
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static __inline uint64_t
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be64dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return (((uint64_t)be32dec(p) << 32) | be32dec(p + 4));
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}
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static __inline uint16_t
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le16dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return ((p[1] << 8) | p[0]);
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}
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static __inline uint32_t
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le32dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return (((unsigned)p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
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}
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static __inline uint64_t
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le64dec(const void *pp)
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{
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uint8_t const *p = (uint8_t const *)pp;
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return (((uint64_t)le32dec(p + 4) << 32) | le32dec(p));
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}
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static __inline void
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be16enc(void *pp, uint16_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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p[0] = (u >> 8) & 0xff;
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p[1] = u & 0xff;
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}
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static __inline void
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be32enc(void *pp, uint32_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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p[0] = (u >> 24) & 0xff;
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p[1] = (u >> 16) & 0xff;
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p[2] = (u >> 8) & 0xff;
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p[3] = u & 0xff;
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}
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static __inline void
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be64enc(void *pp, uint64_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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be32enc(p, (uint32_t)(u >> 32));
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be32enc(p + 4, (uint32_t)(u & 0xffffffffU));
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}
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static __inline void
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le16enc(void *pp, uint16_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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p[0] = u & 0xff;
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p[1] = (u >> 8) & 0xff;
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}
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static __inline void
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le32enc(void *pp, uint32_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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p[0] = u & 0xff;
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p[1] = (u >> 8) & 0xff;
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p[2] = (u >> 16) & 0xff;
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p[3] = (u >> 24) & 0xff;
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}
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static __inline void
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le64enc(void *pp, uint64_t u)
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{
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uint8_t *p = (uint8_t *)pp;
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le32enc(p, (uint32_t)(u & 0xffffffffU));
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le32enc(p + 4, (uint32_t)(u >> 32));
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}
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#endif /* _SYS_ENDIAN_H_ */
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