[#BIO_ADDR_path_string]
= BIO&lowbar;ADDR&lowbar;path&lowbar;string
:mrdocs:

Return a newly allocated string for the filesystem path in a Unix&hyphen;domain BIO&lowbar;ADDR&period;

== Synopsis

Declared in `&lt;openssl&sol;bio&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char*
BIO&lowbar;ADDR&lowbar;path&lowbar;string(xref:BIO_ADDR.adoc[BIO&lowbar;ADDR] const* ap);
----

== Return Value

Heap&hyphen;allocated path string to free with OPENSSL&lowbar;free(), or NULL on error &sol; if unset&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ap*
| Address object to query (typically AF&lowbar;UNIX)&period;
|===


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