Sets the certificate database that is used to verify peer certificates.
This is set to the default database by default. See
g_tls_backend_get_default_database(). If set to NULL, then
peer certificate validation will always set the
G_TLS_CERTIFICATE_UNKNOWN_CA error (meaning
accept-certificate will always be emitted on
client-side connections, unless that bit is not set in
validation-flags).
Sets the certificate database that is used to verify peer certificates. This is set to the default database by default. See g_tls_backend_get_default_database(). If set to NULL, then peer certificate validation will always set the G_TLS_CERTIFICATE_UNKNOWN_CA error (meaning accept-certificate will always be emitted on client-side connections, unless that bit is not set in validation-flags).