Look up the issuer of certificate in the database.
The issuer property of certificate is not modified, and the two certificates are not hooked into a chain.
This function can block, use TlsDatabase.lookupCertificateIssuerAsync to perform the lookup operation asynchronously.
a gio.TlsCertificate
used to interact with the user if necessary
flags which affect the lookup operation
a gio.Cancellable, or NULL
a newly allocated issuer gio.TlsCertificate, or NULL. Use g_object_unref() to release the certificate.
GException on failure.
2.30
Look up the issuer of certificate in the database.
The issuer property of certificate is not modified, and the two certificates are not hooked into a chain.
This function can block, use TlsDatabase.lookupCertificateIssuerAsync to perform the lookup operation asynchronously.