mirror of
https://github.com/cryb-to/cryb-to.git
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154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/*-
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* Copyright (c) 2014 Dag-Erling Smørgrav
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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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#ifdef HAVE_SYS_ENDIAN_H
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#include <sys/endian.h>
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#endif
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#ifdef HAVE_ENDIAN_H
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#include <endian.h>
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#endif
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#ifndef HAVE_BE32ENC
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#define be32enc cryb_be32enc
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#endif
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#ifndef HAVE_BE32DEC
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#define be32dec cryb_be32dec
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#endif
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#ifndef HAVE_BE64ENC
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#define be64enc cryb_be64enc
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#endif
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#ifndef HAVE_BE64DEC
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#define be64dec cryb_be64dec
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#endif
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#ifndef HAVE_LE32ENC
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#define le32enc cryb_le32enc
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#endif
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#ifndef HAVE_LE32DEC
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#define le32dec cryb_le32dec
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#endif
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#ifndef HAVE_LE64ENC
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#define le64enc cryb_le64enc
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#endif
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#ifndef HAVE_LE64DEC
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#define le64dec cryb_le64dec
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#endif
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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)((uint8_t *)p)[3] |
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(uint32_t)((uint8_t *)p)[2] << 8 |
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(uint32_t)((uint8_t *)p)[1] << 16 |
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(uint32_t)((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)((uint8_t *)p)[7] |
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(uint64_t)((uint8_t *)p)[6] << 8 |
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(uint64_t)((uint8_t *)p)[5] << 16 |
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(uint64_t)((uint8_t *)p)[4] << 24 |
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(uint64_t)((uint8_t *)p)[3] << 32 |
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(uint64_t)((uint8_t *)p)[2] << 40 |
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(uint64_t)((uint8_t *)p)[1] << 48 |
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(uint64_t)((uint8_t *)p)[0] << 56);
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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)((uint8_t *)p)[0] |
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(uint32_t)((uint8_t *)p)[1] << 8 |
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(uint32_t)((uint8_t *)p)[2] << 16 |
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(uint32_t)((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)((uint8_t *)p)[0] |
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(uint64_t)((uint8_t *)p)[1] << 8 |
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(uint64_t)((uint8_t *)p)[2] << 16 |
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(uint64_t)((uint8_t *)p)[3] << 24 |
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(uint64_t)((uint8_t *)p)[4] << 32 |
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(uint64_t)((uint8_t *)p)[5] << 40 |
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(uint64_t)((uint8_t *)p)[6] << 48 |
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(uint64_t)((uint8_t *)p)[7] << 56);
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}
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#endif
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