[#BIO_new_PKCS7]
= BIO_new_PKCS7
:mrdocs:

Create a filter BIO that finalises and writes streaming PKCS#7 ASN.1 to `out.`

== Synopsis

Declared in `<openssl/pkcs7.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO.adoc[BIO]*
BIO_new_PKCS7(
    xref:BIO.adoc[BIO]* out,
    xref:PKCS7.adoc[PKCS7]* p7);
----

== Return Value

New BIO filter, or NULL on error; free with BIO_free.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *out*
| Downstream BIO that receives the encoded PKCS#7.
| *p7*
| Partial PKCS#7 structure created with PKCS7_STREAM (or similar streaming flags).
|===


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