[#BIO_set_next]
= BIO&lowbar;set&lowbar;next
:mrdocs:

Set the next BIO in a filter chain after `b&period;`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
BIO&lowbar;set&lowbar;next(
    xref:BIO.adoc[BIO]* b,
    xref:BIO.adoc[BIO]* next);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *b*
| BIO whose successor is replaced&period;
| *next*
| BIO to become the next filter, or NULL to clear the link&period;
|===


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