[#SSL_get_client_random]
= SSL_get_client_random
:mrdocs:

Copy the TLS ClientHello random value from a connection.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size_t
SSL_get_client_random(
    xref:SSL.adoc[SSL] const* ssl,
    unsigned char* out,
    size_t outlen);
----

== Return Value

Number of bytes available / copied (typically SSL3_RANDOM_SIZE).

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ssl*
| SSL connection whose client_random is requested.
| *out*
| Destination buffer, or NULL to query the required length only.
| *outlen*
| Capacity of `out` in bytes.
|===


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