[#BIO_new_NDEF]
= BIO_new_NDEF
:mrdocs:

Create a streaming BIO that encodes `val` in indefinite‐length (NDEF) DER form.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO.adoc[BIO]*
BIO_new_NDEF(
    xref:BIO.adoc[BIO]* out,
    xref:ASN1_VALUE.adoc[ASN1_VALUE]* val,
    xref:ASN1_ITEM.adoc[ASN1_ITEM] const* it);
----

== Description

Used for CMS/SMIME streaming; cannot constify `val` because of CMS_stream().

== Return Value

New filter BIO chained to `out,` or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *out*
| Downstream BIO that receives the encoded output.
| *val*
| ASN.1 value to stream‐encode (not const because streaming may update state).
| *it*
| ASN.1 item descriptor for `val.`
|===


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