[#BIO_ADDR_family]
= BIO_ADDR_family
:mrdocs:

Return the address family stored in a BIO_ADDR (for example AF_INET).

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_ADDR_family(xref:BIO_ADDR.adoc[BIO_ADDR] const* ap);
----

== Return Value

Address family constant, or AF_UNSPEC if unset.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ap*
| Address object to query.
|===


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