[#BIO_ADDR_path_string]
= BIO_ADDR_path_string
:mrdocs:

Return a newly allocated string for the filesystem path in a Unix‐domain BIO_ADDR.

== Synopsis

Declared in `<openssl/bio.h>`

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

== Return Value

Heap‐allocated path string to free with OPENSSL_free(), or NULL on error / if unset.

== Parameters

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


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