[#SCT_set0_log_id]
= SCT_set0_log_id
:mrdocs:

Set the CT log ID on an SCT, transferring ownership of `log_id.`

== Synopsis

Declared in `<openssl/ct.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SCT_set0_log_id(
    xref:SCT.adoc[SCT]* sct,
    unsigned char* log_id,
    size_t log_id_len);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *sct*
| SCT whose log_id field is replaced.
| *log_id*
| Log ID bytes that `sct` will own (freed by SCT_free); may be NULL when `log_id_len` is 0.
| *log_id_len*
| Length of `log_id` in bytes (typically CT_V1_HASHLEN for v1).
|===


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