[#OSSL_PARAM_set_octet_string]
= OSSL_PARAM_set_octet_string
:mrdocs:

Copy `len` octets from `val` into an octet‐string OSSL_PARAM.

== Synopsis

Declared in `<openssl/params.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL_PARAM_set_octet_string(
    xref:OSSL_PARAM.adoc[OSSL_PARAM]* p,
    void const* val,
    size_t len);
----

== Return Value

1 on success, or 0 on type/size failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p*
| Parameter locator with type OSSL_PARAM_OCTET_STRING.
| *val*
| Source buffer of `len` bytes.
| *len*
| Number of bytes to copy from `val.`
|===


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