/*
**  libmilter functions return one of the following to indicate
**  success/failure:
*/

#define MI_SUCCESS	0
#define MI_FAILURE	(-1)

#define SMFI_VERSION	2		/* version number */

/*
**  What the filter might do -- values to be ORed together for
**  smfiDesc.xxfi_flags.
*/

#define SMFIF_NONE	0x00000000L	/* no flags */
#define SMFIF_ADDHDRS	0x00000001L	/* filter may add headers */
#define SMFIF_CHGBODY	0x00000002L	/* filter may replace body */
#define SMFIF_MODBODY	SMFIF_CHGBODY	/* backwards compatible */
#define SMFIF_ADDRCPT	0x00000004L	/* filter may add recipients */
#define SMFIF_DELRCPT	0x00000008L	/* filter may delete recipients */
#define SMFIF_CHGHDRS	0x00000010L	/* filter may change/delete headers */
#define SMFIF_QUARANTINE 0x00000020L	/* filter may quarantine envelope */

/*
**  Continue processing message/connection.
*/

#define SMFIS_CONTINUE	0

/*
**  Reject the message/connection.
**  No further routines will be called for this message
**  (or connection, if returned from a connection-oriented routine).
*/

#define SMFIS_REJECT	1

/*
**  Accept the message,
**  but silently discard the message.
**  No further routines will be called for this message.
**  This is only meaningful from message-oriented routines.
*/

#define SMFIS_DISCARD	2

/*
**  Accept the message/connection.
**  No further routines will be called for this message
**  (or connection, if returned from a connection-oriented routine;
**  in this case, it causes all messages on this connection
**  to be accepted without filtering).
*/

#define SMFIS_ACCEPT	3

/*
**  Return a temporary failure, i.e.,
**  the corresponding SMTP command will return a 4xx status code.
**  In some cases this may prevent further routines from
**  being called on this message or connection,
**  although in other cases (e.g., when processing an envelope
**  recipient) processing of the message will continue.
*/

#define SMFIS_TEMPFAIL	4