[#SSL_SESSION_set1_hostname]
= SSL_SESSION_set1_hostname
:mrdocs:

Set the SNI hostname stored on a session to a copy of `hostname.`

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL_SESSION_set1_hostname(
    xref:SSL_SESSION.adoc[SSL_SESSION]* s,
    char const* hostname);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| Session to update.
| *hostname*
| Hostname string to copy, or NULL to clear.
|===


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