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Network interface number to get the hardware address.
paddrp_addr_hw
Pointer to variable that will receive the hardware address.
paddrp_addr_len
Pointer to a variable to pass the length of the address buffer pointed to by paddrp_addr_hw and return the size of the returned hardware address, if no errors.
perrp_err
Pointer to variable that will receive the return error code from this function:
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