[#PEM_ASN1_write_bio]
= PEM_ASN1_write_bio
:mrdocs:

Encode an ASN.1 object with `i2d` and write it as a PEM block to a BIO.

== Synopsis

Declared in `<openssl/pem.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
PEM_ASN1_write_bio(
    xref:i2d_of_void.adoc[i2d_of_void]* i2d,
    char const* name,
    xref:BIO.adoc[BIO]* bp,
    void const* x,
    xref:EVP_CIPHER-07.adoc[EVP_CIPHER] const* enc,
    unsigned char const* kstr,
    int klen,
    xref:pem_password_cb.adoc[pem_password_cb]* cb,
    void* u);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *i2d*
| Encoder such as i2d_X509.
| *name*
| PEM type label written after "‐‐‐‐‐BEGIN ".
| *bp*
| BIO that receives the PEM text.
| *x*
| Object passed to `i2d.`
| *enc*
| Optional cipher for encrypting the PEM, or NULL for cleartext.
| *kstr*
| Optional encryption key bytes when `enc` is non‐NULL, or NULL to use `cb.`
| *klen*
| Length of `kstr` in bytes.
| *cb*
| Password callback used when `enc` is set and `kstr` is NULL, or NULL.
| *u*
| Application data passed to `cb.`
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#