>BIO_ADDR</b> with them. In case this creates a <b>AF_UNIX</b> <b>BIO_ADDR</b>, <b>wherelen</b> is expected to be the length of the path string (not including the terminating NUL, such as the result of a call to strlen()). Read on about the addresses in <a href="#RAW-ADDRESSES">&quot;RAW ADDRESSES&quot;</a> below.</p>

<p>BIO_ADDR_family() returns the protocol family of the given <b>BIO_ADDR</b>. The possible non-error results are one of the constants AF_INET, AF_INET6 and AF_UNIX. It will also return AF_UN