59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
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#include "lw.h"
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/**
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* Put some bytes to an output buffer
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* @param dst Destination
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* @param data Data to put
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* @len length of data (iini bytes)
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* @return The number of bytes put
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*/
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int lw_put_data(uint8_t*dst,const uint8_t*data,uint16_t len)
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{
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memcpy(dst,data,len);
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return len;
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}
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/**
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* Put a #bstr16_t to an output buffer
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* @param dst Destination
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* @param b bstr16 to put
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* @return The number of bytes put
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*/
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int lw_put_bstr16(uint8_t * dst, const bstr16_t b){
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lw_put_data(dst,bstr16_data(b),bstr16_len(b));
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return bstr16_len(b);
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}
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int lw_put_elem_hdr(uint8_t *dst,uint8_t type,uint16_t len)
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{
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*dst=type;
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*((uint16_t*)(dst+1)) = htons(len);
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return 3;
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}
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/**
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* Put a message element header for a message to contain a vendor specific payload
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* @param dst pointer to destination buffer
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* @param vendorid vendorid
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* @param elemid element id of vendor specific data
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* @len length of vendor specific data
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* @return the number of bytes put (always 10)
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*/
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int lw_put_vendor(uint8_t * dst, uint32_t vendorid,
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uint16_t elemid, uint16_t len)
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{
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lw_set_dword(dst + 0, vendorid);
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lw_set_word(dst + 4, elemid);
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return 6;
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}
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