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Annotation of 43BSDReno/usr.sbin/sendmail/cf/m4/nstcpm.m4, revision 1.1

1.1     ! root        1: divert(10)
        !             2: #
        !             3: # Copyright (c) 1983 Eric P. Allman
        !             4: # Copyright (c) 1988 The Regents of the University of California.
        !             5: # All rights reserved.
        !             6: #
        !             7: # Redistribution and use in source and binary forms are permitted
        !             8: # provided that the above copyright notice and this paragraph are
        !             9: # duplicated in all such forms and that any documentation,
        !            10: # advertising materials, and other materials related to such
        !            11: # distribution and use acknowledge that the software was developed
        !            12: # by the University of California, Berkeley.  The name of the
        !            13: # University may not be used to endorse or promote products derived
        !            14: # from this software without specific prior written permission.
        !            15: # THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16: # IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17: # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18: #
        !            19: #      @(#)nstcpm.m4   1.22 (Berkeley) 2/15/89
        !            20: #
        !            21: divert(0)
        !            22: ############################################################
        !            23: ############################################################
        !            24: #####
        !            25: #####          Internet SMTP Mailer specification
        !            26: #####
        !            27: #####  Messages processed by this specification are assumed to leave
        !            28: #####  the local domain -- hence, they must be canonical according to
        !            29: #####  RFC822 etc.  This means that machines not registered with
        !            30: #####  the NIC must be hidden behind our Internet relay.
        !            31: #####
        !            32: ############################################################
        !            33: ############################################################
        !            34: 
        !            35: Mtcp,  P=[IPC], F=mDFMueXLC, S=14, R=24, A=IPC $h, E=\r\n
        !            36: 
        !            37: S14
        !            38: 
        !            39: # pass <route-addr>'s through
        !            40: R<@$+>$*               $@<@$[$1$]>$2                   resolve <route-addr>
        !            41: 
        !            42: # map colons to dots everywhere
        !            43: R$*:$*                 $1.$2                           map colons to dots
        !            44: 
        !            45: # output local host in [email protected] syntax
        !            46: R$-                    $1<@$w>                         user w/o host
        !            47: R$+<@$=w>              $:$1<@$w>                       this host
        !            48: R$+<@$->               $:$1<@$[$2$]>                   canonicalize into dom
        !            49: R$+<@$->               $:$1<@$2.$D>                    if nameserver fails
        !            50: R$+<@$=N.$D>           $@$1<@$2.$D>                    nic-reg hosts are ok
        !            51: R$+<@$*.$D>            $@$1%$2.$D<@$A>                 else -> u%h@gateway
        !            52: 
        !            53: # if not local, and not a "fake" domain, ask the nameserver
        !            54: R$+<@$+.$~I>           $@$1<@$[$2.$3$]>                [email protected]
        !            55: R$+<@[$+]>             $@$1<@[$2]>                     already ok
        !            56: 
        !            57: # output internal ("fake") domains as "user%host@relay"
        !            58: 
        !            59: ifdef(`BITNET_RELAY',
        !            60: R$+<@$+.BITNET>                $@$1%$2.BITNET<@$B>             [email protected])
        !            61: ifdef(`CSNET_RELAY',
        !            62: R$+<@$+.CSNET>         $@$1%$2.CSNET<@$C>              [email protected])
        !            63: R$+<@$+.UUCP>          $@$2!$1<@$w>                    [email protected]
        !            64: 
        !            65: 
        !            66: S24
        !            67: 
        !            68: # put in <> kludge
        !            69: R$*<$*>$*              $1$2$3                          defocus
        !            70: R$*                    $:$>3$1                         now canonical form
        !            71: 
        !            72: # pass <route-addr>'s through
        !            73: R<@$+>$*               $@<@$[$1$]>$2                   resolve <route-addr>
        !            74: 
        !            75: # map colons to dots everywhere.....
        !            76: R$*:$*                 $1.$2                           map colons to dots
        !            77: 
        !            78: # output local host in [email protected] syntax
        !            79: R$-                    $1<@$w>                         user w/o host
        !            80: R$+<@$=w>              $:$1<@$w>                       this host
        !            81: R$+<@$->               $:$1<@$[$2$]>                   canonicalize into dom
        !            82: R$+<@$->               $:$1<@$2.$D>                    if nameserver fails
        !            83: R$+<@$=N.$D>           $@$1<@$2.$D>                    nic-reg hosts are ok
        !            84: R$+<@$*.$D>            $@$1%$2.$D<@$A>                 else -> u%h@gateway
        !            85: 
        !            86: # if not local, and not a "fake" domain, ask the nameserver
        !            87: R$+<@$+.$~I>           $@$1<@$[$2.$3$]>                [email protected]
        !            88: R$+<@[$+]>             $@$1<@[$2]>                     already ok
        !            89: 
        !            90: # Hide fake domains behind relays
        !            91: 
        !            92: ifdef(`BITNET_RELAY',
        !            93: R$+<@$+.BITNET>                $@$1%$2.BITNET<@$B>             [email protected])
        !            94: ifdef(`CSNET_RELAY',
        !            95: R$+<@$+.CSNET>         $@$1%$2.CSNET<@$C>              [email protected])
        !            96: R$+<@$+.UUCP>          $@$2!$1                         [email protected]
        !            97: 

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