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20 lines
533 B
C
20 lines
533 B
C
/*
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* common.h
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*
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* Created on: 05.10.2011
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* Author: Oliver
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*/
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#ifndef COMMON_H_
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#define COMMON_H_
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#define HTONS(a) ((((uint16_t) (a) >> 8) & 0xff) | ((((uint16_t) (a)) & 0xff) << 8))
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#define HTONL(a) ((((uint32_t) (a) & 0xff000000) >> 24) | \
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(((uint32_t) (a) & 0x00ff0000) >> 8) | \
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(((uint32_t) (a) & 0x0000ff00) << 8) | \
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(((uint32_t) (a) & 0x000000ff) << 24))
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uint16_t csum(uint16_t sum, uint8_t *buf, uint16_t len);
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#endif /* COMMON_H_ */
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