[#BIO_meth_set_read_ex]
= BIO_meth_set_read_ex
:mrdocs:

Install the extended read callback on a BIO_METHOD.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_meth_set_read_ex(
    xref:BIO_METHOD.adoc[BIO_METHOD]* biom,
    int(* bread)(xref:BIO.adoc[BIO]*, char*, size_t, size_t*));
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *biom*
| Method table to update.
| *bread*
| Callback implementing BIO_read_ex()‐style input.
|===


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