<term><function>PQsslAttributeNames</function><indexterm><primary>PQsslAttributeNames</primary></indexterm></term>

<listitem>

<para>

Returns an array of SSL attribute names available.

Returns an array of SSL attribute names that can be used

in <function>PQsslAttribute()</function>.

The array is terminated by a NULL pointer.

<synopsis>

const char * const * PQsslAttributeNames(const PGconn *conn);

</synopsis>

</para>

<para>

If <literal>conn</literal> is NULL, the attributes available for the

default SSL library are returned, or an empty list

if <application>libpq</application> was compiled without any SSL

support. If <literal>conn</literal> is not NULL, the attributes

available for the SSL library in use for the connection are returned,

or an empty list if the connection is not encrypted.

</para>

</listitem>

</varlistentry>

PQsslAttributeNames(PGconn*conn)

{

staticconstchar*constresult[]= {

staticconstchar*constopenssl_attrs[]= {

"library",

"key_bits",

"cipher",

"compression",

"protocol",

};

staticconstchar*constempty_attrs[]= {NULL};

returnresult;

if (!conn)

{

returnopenssl_attrs;

}

if (conn->ssl==NULL)

returnempty_attrs;

returnopenssl_attrs;

}