71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/*
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* dhcpcd - DHCP client daemon
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* Copyright (c) 2006-2014 Roy Marples <roy@marples.name>
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* All rights reserved
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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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#ifndef ENDIAN_H
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#define ENDIAN_H
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#include <stdint.h>
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inline static void
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be32enc(uint8_t *buf, uint32_t u)
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{
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buf[0] = (uint8_t)((u >> 24) & 0xff);
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buf[1] = (uint8_t)((u >> 16) & 0xff);
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buf[2] = (uint8_t)((u >> 8) & 0xff);
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buf[3] = (uint8_t)(u & 0xff);
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}
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inline static void
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be64enc(uint8_t *buf, uint64_t u)
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{
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be32enc(buf, (uint32_t)(u >> 32));
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be32enc(buf + sizeof(uint32_t), (uint32_t)(u & 0xffffffffULL));
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}
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inline static uint16_t
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be16dec(const uint8_t *buf)
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{
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return (uint16_t)(buf[0] << 8 | buf[1]);
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}
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inline static uint32_t
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be32dec(const uint8_t *buf)
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{
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return (uint32_t)((uint32_t)be16dec(buf) << 16 | be16dec(buf + 2));
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}
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inline static uint64_t
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be64dec(const uint8_t *buf)
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{
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return (uint64_t)((uint64_t)be32dec(buf) << 32 | be32dec(buf + 4));
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}
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#endif
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