[#SSL_SESSION_set1_id]
= SSL_SESSION_set1_id
:mrdocs:

Set the session ID bytes stored on an SSL_SESSION.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL_SESSION_set1_id(
    xref:SSL_SESSION.adoc[SSL_SESSION]* s,
    unsigned char const* sid,
    unsigned int sid_len);
----

== Return Value

1 on success, or 0 on failure (for example if `sid_len` is too large).

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| Session to update.
| *sid*
| Session ID bytes to copy.
| *sid_len*
| Length of `sid` (must not exceed SSL_MAX_SSL_SESSION_ID_LENGTH).
|===


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