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Annotation of 43BSDReno/usr.sbin/sendmail/cf/m4/rule0.m4, revision 1.1.1.1

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: #      @(#)rule0.m4    1.11 (Berkeley) 2/15/89
                     20: #
                     21: divert(0)
                     22: ############################################################
                     23: ############################################################
                     24: #####
                     25: #####          RULESET ZERO PREAMBLE
                     26: #####
                     27: #####  The beginning of ruleset zero is constant through all
                     28: #####  configurations.
                     29: #####
                     30: ############################################################
                     31: ############################################################
                     32: 
                     33: S0
                     34: 
                     35: # first make canonical
                     36: R$*<$*>$*              $1$2$3                          defocus
                     37: R$+                    $:$>3$1                         make canonical
                     38: 
                     39: # handle special cases
                     40: R$*<@[$+]>$*           $:$1<@$[[$2]$]>$3               numeric internet addr
                     41: R$*<@[$+]>$*           $#tcp$@[$2]$:$1@[$2]$3          numeric internet spec
                     42: R$+                    $:$>6$1
                     43: R$-<@$w>               $#local$:$1
                     44: R@                     $#error$:Invalid address        handle <> form
                     45: 
                     46: # canonicalize using the nameserver if not internal domain
                     47: R$*<@$*.$~I>$*         $:$1<@$[$2.$3$]>$4
                     48: R$*<@$->$*             $:$1<@$[$2$]>$3
                     49: R$*<@$->$*             $:$1<@$2.$D>$3                  if nameserver fails
                     50: 
                     51: # now delete the local info
                     52: R<@$w>:$*              $@$>0$1                         @here:... -> ...
                     53: R$*<@$w>               $@$>0$1                         ...@here -> ...
                     54: 
                     55: ##################################
                     56: #  End of ruleset zero preamble  #
                     57: ##################################

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