[#SSL_CONF_CTX_set1_prefix]
= SSL&lowbar;CONF&lowbar;CTX&lowbar;set1&lowbar;prefix
:mrdocs:

Set the command&hyphen;name prefix recognised by subsequent SSL&lowbar;CONF&lowbar;cmd() calls&period;

== Synopsis

Declared in `&lt;openssl&sol;ssl&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL&lowbar;CONF&lowbar;CTX&lowbar;set1&lowbar;prefix(
    xref:SSL_CONF_CTX.adoc[SSL&lowbar;CONF&lowbar;CTX]* cctx,
    char const* pre);
----

== Return Value

1 on success, or 0 on failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cctx*
| Configuration context to update&period;
| *pre*
| Prefix string, or NULL to restore the default for the current flags&period;
|===


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