!+
!   MX_FILTERDEF.R32
!
!   Constants and structures defining the Router filter callout interface.
!
!
! Copyright (c) 2008, Matthew Madison.
! 
! All rights reserved.
! 
! Redistribution and use in source and binary forms, with or without
! modification, are permitted provided that the following conditions
! are met:
! 
!     * Redistributions of source code must retain the above
!       copyright notice, this list of conditions and the following
!       disclaimer.
!     * Redistributions in binary form must reproduce the above
!       copyright notice, this list of conditions and the following
!       disclaimer in the documentation and/or other materials provided
!       with the distribution.
!     * Neither the name of the copyright owner nor the names of any
!       other contributors may be used to endorse or promote products
!       derived from this software without specific prior written
!       permission.
! 
! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
! "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
! LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
! A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
! OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
! LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
! OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
!
!   N.B.:  This is an undocumented interface and may change at any time.
!-

! Message sources

    LITERAL
    	FLTR_K_SOURCE_LOCAL 	= 51,
    	FLTR_K_SOURCE_SMTP  	= 93,
    	FLTR_K_SOURCE_JNET  	= 67,
    	FLTR_K_SOURCE_UUCP  	= 82,
    	FLTR_K_SOURCE_SITE  	= 79,
    	FLTR_K_SOURCE_DNSMTP	= 38,
    	FLTR_K_SOURCE_X25SMTP	= 18,
    	FLTR_K_SOURCE_BSMTP 	= 66;

!  Item codes

    LITERAL
    	FLTR__ENV_MSGSIZE	= 101,
    	FLTR__ENV_SOURCE	= 102,
    	FLTR__ENV_SENDER	= 103,
    	FLTR__ENV_RECIPIENT	= 104,

    	FLTR__HDR_FROM	    	= 1,
    	FLTR__HDR_SENDER	= 2,
    	FLTR__HDR_TO   	    	= 3,
    	FLTR__HDR_R_TO	    	= 4,
    	FLTR__HDR_CC   	    	= 5,
    	FLTR__HDR_R_CC	    	= 6,
    	FLTR__HDR_BCC  	    	= 7,
    	FLTR__HDR_R_BCC	    	= 8,
    	FLTR__HDR_MESSAGE_ID 	= 9,
    	FLTR__HDR_R_MESSAGE_ID	= 10,
    	FLTR__HDR_IN_REPLY_TO	= 11,
    	FLTR__HDR_REFERENCES 	= 12,
    	FLTR__HDR_KEYWORDS   	= 13,
    	FLTR__HDR_SUBJECT    	= 14,
    	FLTR__HDR_ENCRYPTED  	= 15,
    	FLTR__HDR_DATE	    	= 16,
    	FLTR__HDR_REPLY_TO   	= 17,
    	FLTR__HDR_RECEIVED   	= 18,
    	FLTR__HDR_R_REPLY_TO 	= 19,
    	FLTR__HDR_R_FROM	= 20,
    	FLTR__HDR_R_SENDER   	= 21,
    	FLTR__HDR_R_DATE	= 22,
    	FLTR__HDR_RETURN_PATH	= 23,
    	FLTR__HDR_OTHER	    	= 24,
    	FLTR__HDR_X_WARNING  	= 25,
    	FLTR__HDR_X_TO	    	= 26,
    	FLTR__HDR_X_R_TO	= 27,
    	FLTR__HDR_X_CC	    	= 28,
    	FLTR__HDR_X_R_CC	= 29,
    	FLTR__HDR_X_BCC	    	= 30,
    	FLTR__HDR_X_R_BCC    	= 31,
	FLTR__HDR_MIME_VERSION	= 32,
	FLTR__HDR_MIME_C_T_E	= 33,
	FLTR__HDR_MIME_C_TYPE	= 34,
	FLTR__HDR_LIST_SUB	= 35,
	FLTR__HDR_LIST_UNSUB	= 36,
	FLTR__HDR_LIST_HELP	= 37,
	FLTR__HDR_LIST_OTHER	= 38;

!  Returned information codes

    LITERAL
    	FLTR__NOCHANGE	    	= 0,  ! hdrs/rcpts/sender
    	FLTR__REWRITE	    	= 1,  ! hdrs/rcpts/sender
    	FLTR__REJECT	    	= 2,  ! rcpts only
    	FLTR__DELETE	    	= 3;  ! hdrs/rcpts