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117 lines
3.7 KiB
C
117 lines
3.7 KiB
C
/*
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* Copyright (c) 2014 - 2020 The GmSSL Project. 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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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the GmSSL Project.
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* (http://gmssl.org/)"
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*
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* 4. The name "GmSSL Project" must not be used to endorse or promote
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* products derived from this software without prior written
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* permission. For written permission, please contact
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* guanzhi1980@gmail.com.
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*
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* 5. Products derived from this software may not be called "GmSSL"
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* nor may "GmSSL" appear in their names without prior written
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* permission of the GmSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the GmSSL Project
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* (http://gmssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE GmSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE GmSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GMSSL_ENDIAN_H
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#define GMSSL_ENDIAN_H
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/* Big Endian R/W */
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#define GETU16(p) \
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((uint16_t)(p)[0] << 8 | \
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(uint16_t)(p)[1])
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#define GETU32(p) \
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((uint32_t)(p)[0] << 24 | \
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(uint32_t)(p)[1] << 16 | \
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(uint32_t)(p)[2] << 8 | \
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(uint32_t)(p)[3])
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#define GETU64(p) \
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((uint64_t)(p)[0] << 56 | \
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(uint64_t)(p)[1] << 48 | \
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(uint64_t)(p)[2] << 40 | \
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(uint64_t)(p)[3] << 32 | \
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(uint64_t)(p)[4] << 24 | \
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(uint64_t)(p)[5] << 16 | \
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(uint64_t)(p)[6] << 8 | \
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(uint64_t)(p)[7])
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// 注意：PUTU32(buf, val++) 会出错！
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#define PUTU16(p,V) \
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((p)[0] = (uint8_t)((V) >> 8), \
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(p)[1] = (uint8_t)(V))
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#define PUTU32(p,V) \
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((p)[0] = (uint8_t)((V) >> 24), \
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(p)[1] = (uint8_t)((V) >> 16), \
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(p)[2] = (uint8_t)((V) >> 8), \
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(p)[3] = (uint8_t)(V))
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#define PUTU64(p,V) \
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((p)[0] = (uint8_t)((V) >> 56), \
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(p)[1] = (uint8_t)((V) >> 48), \
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(p)[2] = (uint8_t)((V) >> 40), \
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(p)[3] = (uint8_t)((V) >> 32), \
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(p)[4] = (uint8_t)((V) >> 24), \
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(p)[5] = (uint8_t)((V) >> 16), \
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(p)[6] = (uint8_t)((V) >> 8), \
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(p)[7] = (uint8_t)(V))
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/* Little Endian R/W */
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#define GETU16_LE(p) (*(const uint16_t *)(p))
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#define GETU32_LE(p) (*(const uint32_t *)(p))
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#define GETU64_LE(p) (*(const uint64_t *)(p))
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#define PUTU16_LE(p,V) *(uint16_t *)(p) = (V)
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#define PUTU32_LE(p,V) *(uint32_t *)(p) = (V)
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#define PUTU64_LE(p,V) *(uint64_t *)(p) = (V)
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/* Rotate */
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#define ROL32(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
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#define ROL64(a,n) (((a)<<(n))|((a)>>(64-(n))))
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#define ROR32(a,n) ROL32((a),32-(n))
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#define ROR64(a,n) ROL64(a,64-n)
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#endif
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