[#SSL_dane_tlsa_add]
= SSL_dane_tlsa_add
:mrdocs:

Add a DANE TLSA record used to authenticate the peer on a connection.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL_dane_tlsa_add(
    xref:SSL.adoc[SSL]* s,
    uint8_t usage,
    uint8_t selector,
    uint8_t mtype,
    unsigned char const* data,
    size_t dlen);
----

== Return Value

Positive value on success, 0 for invalid input, or a negative value on resource failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| DANE‐enabled SSL connection that will use the record during verification.
| *usage*
| TLSA certificate usage field.
| *selector*
| TLSA selector field.
| *mtype*
| TLSA matching type field.
| *data*
| Binary association data for the TLSA record.
| *dlen*
| Length of `data` in bytes.
|===


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