* sign.c (gpgsm_get_default_cert): New.
(get_default_signer): Use the new function if local_user is not
set otherwise used that value.
* encrypt.c (get_default_recipient): Removed.
(gpgsm_encrypt): Use gpgsm_get_default_cert.
* verify.c (gpgsm_verify): Better error text for a bad signature
found by comparing the hashs.
name identifies a certificate unambiguously.
(gpgsm_find_cert): Ditto.
* server.c (cmd_listkeys): Check that the data stream is available.
(cmd_listsecretkeys): Ditto.
(has_option): New.
(cmd_sign): Fix ambiguousity in option recognition.
* gpgsm.c (main): Enable --logger-fd.
* encrypt.c (gpgsm_encrypt): Increased buffer size for better
performance.
* call-agent.c (gpgsm_agent_pksign): Check the S-Exp received from
the agent.
* keylist.c (list_cert_colon): Filter out control characters.
