mirror of
https://github.com/cryb-to/cryb-to.git
synced 2024-11-23 06:05:46 +00:00
397 lines
8.8 KiB
C
397 lines
8.8 KiB
C
/*-
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* Copyright (c) 2014 Dag-Erling Smørgrav
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* Copyright (c) 2016 Universitetet i Oslo
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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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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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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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#ifndef CRYB_ENDIAN_H_INCLUDED
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#define CRYB_ENDIAN_H_INCLUDED
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#ifndef CRYB_TO
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#include <cryb/to.h>
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#endif
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#if HAVE_SYS_ENDIAN_H
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#include <sys/endian.h>
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#endif
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#if HAVE_ENDIAN_H
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#include <endian.h>
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#endif
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CRYB_BEGIN
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#if !HAVE_DECL_BSWAP16
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#define bswap16 cryb_bswap16
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#endif
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#if !HAVE_DECL_BSWAP32
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#define bswap32 cryb_bswap32
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#endif
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#if !HAVE_DECL_BSWAP64
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#define bswap64 cryb_bswap64
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#endif
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#if !HAVE_DECL_BE16ENC
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#define be16enc cryb_be16enc
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#endif
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#if !HAVE_DECL_BE16DEC
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#define be16dec cryb_be16dec
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#endif
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#if !HAVE_DECL_BE32ENC
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#define be32enc cryb_be32enc
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#endif
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#if !HAVE_DECL_BE32DEC
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#define be32dec cryb_be32dec
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#endif
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#if !HAVE_DECL_BE64ENC
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#define be64enc cryb_be64enc
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#endif
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#if !HAVE_DECL_BE64DEC
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#define be64dec cryb_be64dec
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#endif
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#if !HAVE_DECL_LE16ENC
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#define le16enc cryb_le16enc
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#endif
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#if !HAVE_DECL_LE16DEC
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#define le16dec cryb_le16dec
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#endif
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#if !HAVE_DECL_LE32ENC
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#define le32enc cryb_le32enc
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#endif
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#if !HAVE_DECL_LE32DEC
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#define le32dec cryb_le32dec
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#endif
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#if !HAVE_DECL_LE64ENC
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#define le64enc cryb_le64enc
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#endif
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#if !HAVE_DECL_LE64DEC
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#define le64dec cryb_le64dec
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#endif
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#if !HAVE_DECL_HTOBE16
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#define htobe16 cryb_htobe16
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#endif
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#if !HAVE_DECL_BE16TOH
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#define be16toh cryb_be16toh
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#endif
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#if !HAVE_DECL_HTOLE16
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#define htole16 cryb_htole16
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#endif
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#if !HAVE_DECL_LE16TOH
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#define le16toh cryb_le16toh
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#endif
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#if !HAVE_DECL_HTOBE32
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#define htobe32 cryb_htobe32
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#endif
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#if !HAVE_DECL_BE32TOH
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#define be32toh cryb_be32toh
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#endif
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#if !HAVE_DECL_HTOLE32
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#define htole32 cryb_htole32
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#endif
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#if !HAVE_DECL_LE32TOH
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#define le32toh cryb_le32toh
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#endif
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#if !HAVE_DECL_HTOBE64
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#define htobe64 cryb_htobe64
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#endif
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#if !HAVE_DECL_BE64TOH
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#define be64toh cryb_be64toh
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#endif
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#if !HAVE_DECL_HTOLE64
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#define htole64 cryb_htole64
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#endif
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#if !HAVE_DECL_LE64TOH
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#define le64toh cryb_le64toh
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#endif
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static inline uint16_t
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cryb_bswap16(uint16_t u16)
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{
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#if HAVE___BUILTIN_BSWAP16
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return (__builtin_bswap16(u16));
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#else
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return (((u16 & 0x00ffU) >> 0) << 8 |
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((u16 & 0xff00U) >> 8) << 0);
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#endif
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}
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static inline uint32_t
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cryb_bswap32(uint32_t u32)
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{
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#if HAVE___BUILTIN_BSWAP32
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return (__builtin_bswap32(u32));
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#else
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return (((u32 & 0x000000ffLU) >> 0) << 24 |
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((u32 & 0x0000ff00LU) >> 8) << 16 |
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((u32 & 0x00ff0000LU) >> 16) << 8 |
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((u32 & 0xff000000LU) >> 24) << 0);
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#endif
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}
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static inline uint64_t
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cryb_bswap64(uint64_t u64)
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{
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#if HAVE___BUILTIN_BSWAP64
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return (__builtin_bswap64(u64));
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#else
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return (((u64 & 0x00000000000000ffLLU) >> 0) << 56 |
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((u64 & 0x000000000000ff00LLU) >> 8) << 48 |
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((u64 & 0x0000000000ff0000LLU) >> 16) << 40 |
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((u64 & 0x00000000ff000000LLU) >> 24) << 32 |
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((u64 & 0x000000ff00000000LLU) >> 32) << 24 |
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((u64 & 0x0000ff0000000000LLU) >> 40) << 16 |
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((u64 & 0x00ff000000000000LLU) >> 48) << 8 |
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((u64 & 0xff00000000000000LLU) >> 56) << 0);
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#endif
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}
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static inline void
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cryb_be16enc(void *p, uint16_t u16)
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{
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((uint8_t *)p)[1] = u16 & 0xff;
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((uint8_t *)p)[0] = (u16 >> 8) & 0xff;
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}
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static inline uint16_t
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cryb_be16dec(const void *p)
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{
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return ((uint16_t)((const uint8_t *)p)[1] |
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(uint16_t)((const uint8_t *)p)[0] << 8);
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}
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static inline void
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cryb_be32enc(void *p, uint32_t u32)
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{
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((uint8_t *)p)[3] = u32 & 0xff;
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((uint8_t *)p)[2] = (u32 >> 8) & 0xff;
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((uint8_t *)p)[1] = (u32 >> 16) & 0xff;
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((uint8_t *)p)[0] = (u32 >> 24) & 0xff;
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}
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static inline uint32_t
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cryb_be32dec(const void *p)
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{
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return ((uint32_t)((const uint8_t *)p)[3] |
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(uint32_t)((const uint8_t *)p)[2] << 8 |
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(uint32_t)((const uint8_t *)p)[1] << 16 |
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(uint32_t)((const uint8_t *)p)[0] << 24);
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}
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static inline void
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cryb_be64enc(void *p, uint64_t u64)
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{
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((uint8_t *)p)[7] = u64 & 0xff;
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((uint8_t *)p)[6] = (u64 >> 8) & 0xff;
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((uint8_t *)p)[5] = (u64 >> 16) & 0xff;
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((uint8_t *)p)[4] = (u64 >> 24) & 0xff;
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((uint8_t *)p)[3] = (u64 >> 32) & 0xff;
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((uint8_t *)p)[2] = (u64 >> 40) & 0xff;
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((uint8_t *)p)[1] = (u64 >> 48) & 0xff;
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((uint8_t *)p)[0] = (u64 >> 56) & 0xff;
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}
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static inline uint64_t
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cryb_be64dec(const void *p)
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{
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return ((uint64_t)((const uint8_t *)p)[7] |
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(uint64_t)((const uint8_t *)p)[6] << 8 |
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(uint64_t)((const uint8_t *)p)[5] << 16 |
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(uint64_t)((const uint8_t *)p)[4] << 24 |
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(uint64_t)((const uint8_t *)p)[3] << 32 |
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(uint64_t)((const uint8_t *)p)[2] << 40 |
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(uint64_t)((const uint8_t *)p)[1] << 48 |
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(uint64_t)((const uint8_t *)p)[0] << 56);
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}
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static inline void
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cryb_le16enc(void *p, uint16_t u16)
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{
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((uint8_t *)p)[0] = u16 & 0xff;
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((uint8_t *)p)[1] = (u16 >> 8) & 0xff;
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}
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static inline uint16_t
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cryb_le16dec(const void *p)
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{
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return ((uint16_t)((const uint8_t *)p)[0] |
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(uint16_t)((const uint8_t *)p)[1] << 8);
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}
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static inline void
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cryb_le32enc(void *p, uint32_t u32)
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{
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((uint8_t *)p)[0] = u32 & 0xff;
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((uint8_t *)p)[1] = (u32 >> 8) & 0xff;
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((uint8_t *)p)[2] = (u32 >> 16) & 0xff;
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((uint8_t *)p)[3] = (u32 >> 24) & 0xff;
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}
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static inline uint32_t
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cryb_le32dec(const void *p)
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{
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return ((uint32_t)((const uint8_t *)p)[0] |
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(uint32_t)((const uint8_t *)p)[1] << 8 |
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(uint32_t)((const uint8_t *)p)[2] << 16 |
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(uint32_t)((const uint8_t *)p)[3] << 24);
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}
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static inline void
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cryb_le64enc(void *p, uint64_t u64)
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{
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((uint8_t *)p)[0] = u64 & 0xff;
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((uint8_t *)p)[1] = (u64 >> 8) & 0xff;
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((uint8_t *)p)[2] = (u64 >> 16) & 0xff;
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((uint8_t *)p)[3] = (u64 >> 24) & 0xff;
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((uint8_t *)p)[4] = (u64 >> 32) & 0xff;
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((uint8_t *)p)[5] = (u64 >> 40) & 0xff;
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((uint8_t *)p)[6] = (u64 >> 48) & 0xff;
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((uint8_t *)p)[7] = (u64 >> 56) & 0xff;
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}
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static inline uint64_t
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cryb_le64dec(const void *p)
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{
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return ((uint64_t)((const uint8_t *)p)[0] |
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(uint64_t)((const uint8_t *)p)[1] << 8 |
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(uint64_t)((const uint8_t *)p)[2] << 16 |
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(uint64_t)((const uint8_t *)p)[3] << 24 |
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(uint64_t)((const uint8_t *)p)[4] << 32 |
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(uint64_t)((const uint8_t *)p)[5] << 40 |
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(uint64_t)((const uint8_t *)p)[6] << 48 |
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(uint64_t)((const uint8_t *)p)[7] << 56);
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}
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static inline uint16_t
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cryb_htobe16(uint16_t u16)
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{
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#if !WORDS_BIGENDIAN
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u16 = cryb_bswap16(u16);
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#endif
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return (u16);
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}
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static inline uint16_t
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cryb_be16toh(uint16_t u16)
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{
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#if !WORDS_BIGENDIAN
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u16 = cryb_bswap16(u16);
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#endif
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return (u16);
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}
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static inline uint16_t
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cryb_htole16(uint16_t u16)
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{
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#if WORDS_BIGENDIAN
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u16 = cryb_bswap16(u16);
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#endif
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return (u16);
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}
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static inline uint16_t
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cryb_le16toh(uint16_t u16)
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{
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#if WORDS_BIGENDIAN
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u16 = cryb_bswap16(u16);
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#endif
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return (u16);
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}
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static inline uint32_t
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cryb_htobe32(uint32_t u32)
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{
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#if !WORDS_BIGENDIAN
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u32 = cryb_bswap32(u32);
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#endif
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return (u32);
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}
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static inline uint32_t
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cryb_be32toh(uint32_t u32)
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{
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#if !WORDS_BIGENDIAN
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u32 = cryb_bswap32(u32);
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#endif
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return (u32);
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}
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static inline uint32_t
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cryb_htole32(uint32_t u32)
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{
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#if WORDS_BIGENDIAN
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u32 = cryb_bswap32(u32);
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#endif
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return (u32);
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}
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static inline uint32_t
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cryb_le32toh(uint32_t u32)
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{
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#if WORDS_BIGENDIAN
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u32 = cryb_bswap32(u32);
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#endif
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return (u32);
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}
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static inline uint64_t
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cryb_htobe64(uint64_t u64)
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{
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#if !WORDS_BIGENDIAN
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u64 = cryb_bswap64(u64);
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#endif
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return (u64);
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}
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static inline uint64_t
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cryb_be64toh(uint64_t u64)
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{
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#if !WORDS_BIGENDIAN
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u64 = cryb_bswap64(u64);
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#endif
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return (u64);
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}
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static inline uint64_t
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cryb_htole64(uint64_t u64)
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{
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#if WORDS_BIGENDIAN
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u64 = cryb_bswap64(u64);
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#endif
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return (u64);
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}
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static inline uint64_t
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cryb_le64toh(uint64_t u64)
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{
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#if WORDS_BIGENDIAN
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u64 = cryb_bswap64(u64);
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#endif
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return (u64);
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}
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CRYB_END
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#endif
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