/usr/sbin/checksendmail

#!/usr/bin/perl

#	BSDI	$Id: checksendmail.perl,v 1.1.1.1 1994/01/13 21:15:31 polk Exp $

# checksendmail
#
#	The checksendmail program is a perl script that aids the testing
#	of sendmail's various configuration filse.  checksendmail 
#	passes typical addresses (supplied in input files) through
#	sendmail and prints the result of the resolution and 
#	transformation routines. 
#
#			Gene Kim & Rob Kolstad & Jeff Polk, 7/11/90
#			Modified by Robert Harker, 11/14/00

# --	-a show aliasing of local addresses
# --	-d preceed each line with ruleset sequence summary
# --    -C config_file
# --	-b sendmail_binary
# --    -l log_file of results of tests
# --    -r resolve_addresses_file
# --	-T test one address

# defaults:
	$resolve  = "/etc/mail/address.resolve";
	$cffile   = "/etc/mail/sendmail.cf";

# Pre-create tmp files (so can use safely)
	use Fcntl;
	foreach ("/tmp/csm$$", "/tmp/csm.in$$") {
		die "Can't pre-create $_" 
			unless sysopen(T,$_,O_RDWR|O_CREAT|O_EXCL,0600)
			and close(T);
	};

sub usage {
	die "Usage: checksendmail [-C cffile.cf] [-b sendmail_binary] [-l log_file]\n\t\t\t\t[-a] [-d] [-r resolve_addrs_file || -T one\@test.addr]\n$errormsg\n";
}

for (unshift (@ARGV, "XX"); $#ARGV > 0; shift ARGV) {
	if ($ARGV[1] eq "-C") 
	{
		if ($setcffile & 1) { die "Can only set `cffile.cf' once"; }
		shift @ARGV;
		if ($#ARGV >= 1) {$cffile = $ARGV[1]; }
		else {
			$errormsg = "No sendmail.cf file given for -C flag\n";
			&usage();
		}
		$setcffile += 1;
	}
	elsif ($ARGV[1] eq "-r")
	{
		if ($setfile & 1) { die "Can only set `resolve' once"; }
		shift @ARGV;
		if ($#ARGV < 1) {
			$errormsg = "No resolve_addrs_file given for -r flag\n";
			&usage();
		}
		$resolve = $ARGV[1];
		$setfile += 1;
	}
	elsif ($ARGV[1] eq "-T")
	{
		if ($setfile) { die "Can't set other files and use -T"; }
		shift @ARGV;
		if ($#ARGV < 1) {
			$errormsg = "No one\@test.addr given for -T flag\n";
			&usage();
		}
		open (OUT, ">/tmp/csm.in$$") ||
					die "Can't open >/tmp/csm.in$$";
		$resolve = "/tmp/csm.in$$";
		print OUT "$ARGV[1]\n";
		close (OUT);
		$setfile = 7;
	}
	elsif ($ARGV[1] eq "-b")
	{
		if ($setbin & 1) { die "Can only set `sendmail_binary' once"; }
		shift @ARGV;
		if ($#ARGV >= 1) {$sendmail = $ARGV[1]; }
		else {
			$errormsg = "No sendmail_binary file given for -b flag\n";
			&usage();
		}
		$setbin += 1;
	}
	elsif ($ARGV[1] eq "-l")
	{
		if ($setlog & 1) { die "Can only set `log_file' once"; }
		shift @ARGV;
		if ($#ARGV >= 1) {$logfile = $ARGV[1]; }
		else {
			$errormsg = "No log_file file given for -l flag\n";
			&usage();
		}
		$setlog += 1;
	}
	elsif ($ARGV[1] eq "-a")
	{
		$doaliasing += 1;
	}
	elsif ($ARGV[1] eq "-d")
	{
		$dorspath += 1;
	}
	else { &usage(); }
}

# Figure out where the sendmail binary is
if (! $setbin & 1) {
  foreach $i ("/usr/sbin/sendmail", "/usr/libexec/sendmail", "/usr/lib/sendmail")
  {
	# test if binary exists and is executable
	if ((-e $i) && (-x $i)) { 
		$sendmail = $i;
		last;
	}
  }
}


# Figure out the version of sendmail and the location of the sendmail.cf file
# sendmail -d0.10 -bv root
#	("-bv root" is just to give sendmail something to chew on)

$binversion = `$sendmail -d0.10 -bv root | grep "^Version "`;
chop $binversion;
$binversion =~ s/^Version //;

# Get the major relase number from the sendmail version
$binver = $binversion;
$binver =~ s/^8\.//;
$binver =~ s/\..+//;

# if the cf file was not set on the command line,
#	find out where the binary looks for it
if ( ! -e $cffile ) {
	$cffile = `$sendmail -d0.10 -bv root | grep "Def Conf file:"`;
	chop $cffile;
	$cffile =~ s/ //g;
	$cffile =~ s/	//g;
	$cffile =~ s/^DefConffile://;
}

if (!-e $cffile)   { die "Can't find configuration file $cffile\n"; }

if (!-e $resolve)  { die "Can't find name file $resolve\n"; }

# Figure out the version of the sendmail.cf file
# Look for the V line
$cfversion = `grep "^V" $cffile`;
chop $cfversion;
# if $cfversion is empty, then the configuration is sendmail 5, not sendmail 8
$cfversion =~ s/^$/V0/;

# Get the version number from the V line
$cfver = $cfversion;
$cfver =~ s/^V//;
$cfver =~ s'/.+'';

# check that the binary is a higher version than config file
if ( $binver < $cfver + 1) {
    die "$cffile version ($cfversion) is more advanced than $sendmail version ($binversion)\n";
}

# figure out where the mqueue directory is
if ( $cfver <= 6 ) {
	$maildir = `grep "^OQ" $cffile`;
	chop $maildir;
	$maildir =~ s/^OQ//;
} else {
	$maildir = `grep "^O QueueDirectory" $cffile`;
	chop $maildir;
	$maildir =~ s/^O QueueDirectory=//;
}

# make sure the user can access the ../mqueue directory
if ((!-r $maildir) || (!-x $maildir) || (!-w $maildir)) { 
	if ($doaliasing & 1) {
	  die "checksendmail: can't access $maildir! can't use checksendmail's -a flag\n";
	} else {
	  warn "checksendmail: can't access $maildir!  trying anyway...\n";
	}
}

chop($hostname = `hostname`);
chop($pwd = `pwd`);
print "system: $hostname\t\tcurrent dir: $pwd\n";
print "resolve file: $resolve\n";
print "sendmail binary: $sendmail\t\tsendmail version: $binversion\n";
print "config file: $cffile\t\tconfig file version: $cfversion\n\n";
if ($setlog & 1) {
  print "log file: $logfile\n\n";
  # now print to the log file
  open (LOG , ">$logfile") || die "Can't open >$logfile";
  print LOG "system: $hostname\t\tcurrent dir: $pwd\n";
  print LOG "resolve file: $resolve\n";
  print LOG "sendmail binary: $sendmail\t\tsendmail version: $binversion\n";
  print LOG "config file: $cffile\t\tconfig file version: $cfversion\n";
  print LOG "log file: $logfile\n\n";
}

sub handler {  # 1st argument is signal name
     local($sig) = @_;
     print STDERR "Caught a SIG$sig--shutting down\n";
     unlink("/tmp/csm$$") || die "Can't unlink /tmp/csm$$";
     unlink("/tmp/csm.in$$");
     if ($setlog & 1) {
       close(LOG);
     }
     exit(0);
}

$SIG{'INT'} = 'handler';
$SIG{'QUIT'} = 'handler';



# glean the mailers used from the rule 0 tests

sub parseresolve
{
     while (<MAIL>)
     {
	# now print to the log file
	if ($setlog & 1) {
	  print LOG $_;
	}
	if (/^ADDRESS TEST MODE/) { next; }
	if (/^Enter <ruleset>/) { next; }
	if (/^Warning: .cf file is out of date/) { next; }

	# if the binary is less than 8.7 then use result of ruleset 0
	if ( $binver <= 6 ) {
	  if (/^>/)			# INPUT LINE! (and last output is done)
	  {
	    chop;
	    if ($prevline) {	# OUTPUT LINE!
	      &printparseresolve;
	    }
	    s/> *[0-9,]* *//g;
	    s/.*input: *//;
	    s/ //g;
	    s/"//g;
	    $input = $_;
	  }
	  else { chop; }
	  $prevline = $_;
	} else {
	  # format of /parse output is:
	  #       Parsing envelope recipient address
	  #       rewrite: ruleset   3   input: harker @ harker . com
	  if ($prevrule eq "Parsing envelope recipient address\n" )
	  {
	    chop;
	    s/> *[0-9,]* *//g;
	    s/.*input: *//;
	    s/ //g;
	    s/"//g;
	    $input = $_;
	    $prevrule = $_;
	  }
	  elsif (/^mailer /)
	  {
	    $prevrule = $_;
	    &printparseresolve;
	  }
	  else
	  {
	    $prevrule = $_;
	  }
	}
     }
    #&printparseresolve;
}

sub printparseresolve {
	# if the binary is less than 8.7 then use result of ruleset 0
	if ( $binver <= 6 ) {
	  if ($input eq "") { return;}

	  $prevline =~ s/.*returns:  *//;
	  $prevline =~ s/"//g;
	  $prevline =~ s/ //g;
	  # Don't strip spaces off error messages
	  $prevline =~ s/ *([.!%<>]) */$1/g;
	  $prevline =~ s/ +([;?\$])/$1/g;
	  $prevline =~ s/([#\@:]) +/$1/g;

# non-Sun test mode delimiters -> easily-readable style
# Mark Sausville, MIT Media Laboratory, saus@media-lab.media.mit.edu
	  $prevline =~ s/\^V/\$#/;
	  $prevline =~ s/\^W/\$@/;
	  $prevline =~ s/\^X/\$:/;

     #### $#ether$@sun-barr.Ebay.Sun.COM$:site!user@uunet.uu.NET
	  @t = split( '\$', $prevline);
	  $address = "XXX";
	  $remote = "XXX";
	  $mailer = "XXX";
	  for ($i = 1; $i <= $#t; $i++)
	  {
	    if (substr($t[$i], 0, 1) eq ":")
	      { $address = substr($t[$i], 1,999); }
	    if (substr($t[$i], 0, 1) eq "@")
	      { $remote = substr($t[$i], 1,999); }
	    if (substr($t[$i], 0, 1) eq "#")
	      { $mailer =  substr($t[$i], 1,999);
		$mailer =~ tr/A-Z/a-z/; }
	   }
	} else {
	# the binary is at least 8.7 then use result of /parse
	  chop;
	  s/,//g;

	  # mailer esmtp, host harker.com., user harker@harker.com
	  @t = split( ' ', $_);
	  $address = "XXX";
	  $remote = "XXX";
	  $mailer = "XXX";
	  for ($i = 0; $i <= $#t; $i++)
	  {
	    if ($t[$i] eq "user")
	      { $address = $t[++$i]; }
	    if ($t[$i] eq "host")
	      { $remote = $t[++$i]; }
	    if ($t[$i] eq "mailer")
	      { $mailer = $t[++$i];
		$mailer =~ tr/A-Z/a-z/; }
	   }
	}
	printf("%-27.27s --(%-6.6s)-->  %s[%s]\n", $input, $mailer,
			$address, $remote);
	# now print to the log file
	if ($setlog & 1) {
	  printf LOG ("%-27.27s --(%-6.6s)-->  %s[%s]\n\n", $input, $mailer,
			$address, $remote);
	}

	if ($doaliasing & 1) {
	  # If the /etc/mail/address.resolved to the local mailer,
	  #	then expand the username as an alias
	  if ( $mailer eq  "local")
	  {
	    $setalias = $aliasfound = 0;
	    $laddress = $address;
	    $sendmailprog = "$sendmail -bv -C$cffile $laddress|";
	    open(LOCAL, $sendmailprog) ||
					die "can't exec $sendmailprog...\n";
	    # now print to the log file
	    if ($setlog & 1) {
	      print LOG "\n$sendmailprog\n";
	    }
	    while (<LOCAL>)
	    {
	      # now print to the log file
	      if ($setlog & 1) {
  	        print LOG $_;
	      }
	      chop;
	      if (/unknown/)
	      {
		$aliasfound = 1;
		printf("\t\t aliased to --(error )-->  %s\n", $_);
		# now print to the log file
		if ($setlog & 1) {
		  printf LOG ("\t\t aliased to --(error )-->  %s\n\n", $_);
		}
		next;
	      }
	      s/,//g;
	      @l = split( ' ', $_);
	      $aladdress = "XXX";
	      $remote = "XXX";
	      $mailer = "XXX";
	      for ($i = 1; $i <= $#l; $i++)
	      {
		# ./sendmail -bv -C./sendmail.cf j.murphy
		# j.murphy@pop.mcit.com... deliverable: mailer mciesmtp,
		#	host pop.mcit.com, user j.murphy@pop.mcit.com
		if ($l[$i] eq "user") { $aladdress = $l[++$i]; }
		if ($l[$i] eq "host") { $remote = $l[++$i]; }
		if ($l[$i] eq "mailer") { $mailer = $l[++$i]; }
	      }
	      if (("$laddress" eq "$aladdress") && ($aliasfound == 0)) {
		$selfalias = 1;
		next;
	      }
	      printf("\t\t aliased to --(%-6.6s)-->  %s[%s]\n",
				$mailer, $aladdress, $remote);
	      # now print to the log file
	      if ($setlog & 1) {
		printf LOG ("\t\t aliased to --(%-6.6s)-->  %s[%s]\n\n",
				$mailer, $aladdress, $remote);
	      }
	      if ("$laddress" ne "$aladdress") {
		$aliasfound = 1;
	        $envsenderaddrs .= " $aladdress";
	      }
	      if ($mailer ne "XXX") { $themailers{$mailer}=1;}
	    }
	    close(LOCAL);
	    if ($selfalias == 1 && $aliasfound == 1) {
	      printf("\t\t aliased to --(%-6.6s)-->  %s[%s]\n",
				$mailer, $aladdress, $remote);
	      # now print to the log file
	      if ($setlog & 1) {
		printf LOG ("\t\t aliased to --(%-6.6s)-->  %s[%s]\n\n",
				$mailer, $aladdress, $remote);
	      }
	    }
	    # now print a blank line to the log file
	    if ($setlog & 1) {
	      print LOG "\n";
	    }
	  } else {
	      $envsenderaddrs .= " $address";
	  }
	}

	if ($mailer ne "XXX") { $themailers{$mailer}.="$input ";}
}

# Parse output of sendmail name resolution 

sub parseaddress
{
##   ADDRESS TEST MODE
##   Enter <ruleset> <address>
##   > rewrite: ruleset  3   input: "user"

    open(MAIL, $_[0]) || die "Can't open $_[0]...\n";
    local ($k, $address, $prevline, $mailer, $remote, $input);
    print $_[1];			# the title
    # now print to the log file
    if ($setlog & 1) {
         print LOG "\n$_[1]";			# the title
    }

    $done = 0;
    while (<MAIL>)
    {
	# now print to the log file
	if ($setlog & 1) {
	  print LOG $_;
	}
	if (/^>  *$/) { $done = 1; }
	if (/^ADDRESS TEST MODE/) { next; }
	if (/^Enter <ruleset>/) { next; }
	if (/^Warning: .cf file is out of date/) { next; }
	if (/^$/) { next; }
	chop;
	# rewrite $rules to be just a slash if it starts with a /
	$rules =~ s'/.+'/';
	# if the binary is less than 8.7 then use result of ruleset 4
	if ( $binver <= 6 || $rules ne "/" ) {
	  if (/^>/)			# INPUT LINE! (and last output is done)
	  {
		if ($prevline) {	# OUTPUT LINE!
		    $prevline =~ s/.*returns:  *//;
		    $prevline =~ s/"//g;
		    $prevline =~ s/ //g;
#> rewrite: ruleset  3   input: "site" "!" "user" "@" "uunet" "." "uu" "." "net"
#rewrite: ruleset  8   input: "site" "!" "user" "@" "uunet" "." "uu" "." "net"
#> 
		    printf("%s%-24.24s ---->  %s\n", $rspath, $input, $prevline);
		    # now print to the log file
		    if ($setlog & 1) {
		      printf LOG ("%s%-24.24s ---->  %s\n", $rspath, $input, $prevline);
		    }
		}
	    s/> *[0-9,]* *//g;
	    s/.*input: *//;
	    s/ //g;
	    s/"//g;
	    $input = $_;
	  }
	  last if $done;
	  $prevline = $_;
	} else {
	  # format of /try output is:
	  #   Trying envelope recipient address harker for mailer esmtp
	  #   ...
	  #   Rcode = 0, addr = harker@mailhub.gadget.com
	  # remove extra ">" from "> >" lines
	  s/^> >/>/;
	  if (/^> Trying/)		# INPUT LINE! (and last output is done)
	  {
	    chop;
	    s/> Trying .+ address //;
	    s/ for mailer .+//;
	    s/ //g;
	    s/"//g;
	    $input = $_;
	    $prevrule = $_;
	  }
	  elsif (/^Rcode = /)
	  {
	    $prevrule = $_;
	    #   Rcode = 0, addr = harker@mailhub.gadget.com
	    s/^Rcode = .+ addr = //;
	    printf("%s%-24.24s ---->  %s\n", $rspath, $input, $_);
	    # now print to the log file
	    if ($setlog & 1) {
	      printf LOG ("%s%-24.24s ---->  %s\n\n", $rspath, $input, $_);
	    }
	  }
	  else
	  {
	    $prevrule = $_;
	  }
	}
    }
    # now print to the log file
    if ($setlog & 1) {
         print LOG "\n";
    }
    close(MAIL);
}


# if the binary is less than 8.7 then use result of ruleset 4
if ( $binver <= 6 ) {
  print "Mail address resolution (rule 0)\n";
  # now print to the log file
  if ($setlog & 1) {
    print LOG "Mail address resolution (rule 0)\n";
  }
} else {
  print "Mail address resolution (/parse)\n";
  # now print to the log file
  if ($setlog & 1) {
    print LOG "Mail address resolution (/parse)\n";
  }
}
# pass names from resolve files to sendmail

open(IN, $resolve) || die "can't open $resolve\n";
open(OUT, ">/tmp/csm$$") || die "can't open >/tmp/csm$$\n";
while (<IN>) 
{
    /^$/ && next;
    /^#/ && next;
    # if the binary is less than 8.7 then use result of ruleset 0
    if ( $binver == 5 ) {
	$rules = "0 $_";
    } elsif ( $binver <= 6 ) {
	$rules = "3,0 $_";
    } else {
	$rules = "/parse $_";
    }
    print OUT $rules;
    # now print to the log file
    if ($setlog & 1) {
      print LOG "$rules";
    }
    chop;
    $allinput .= " $_";
}
    $allinput =~ s/^ //;
close(OUT);
close(IN);
$sendmailprog = "$sendmail -bt -C$cffile < /tmp/csm$$|";
open(MAIL, $sendmailprog) || die "can't exec $sendmailprog...\n";
&parseresolve();

# calculate $f
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    open (IN, $resolve);
    # sendmail 5 automatically runs ruleset 3
    if ( $binver == 5 ) {
	$rules = "1,4";
    } else {
	$rules = "3,1,4";
    }
    if ($dorspath & 1) { $rspath = "\$f: "; }

    while (<IN>) {
	chop;
	/^$/ && next;
	/^#/ && next;
	$address = $_;
	print OUT "$rules $address\n";
        # now print to the log file
        if ($setlog & 1) {
	    print LOG "$rules $address\n";
        }
    }
    print OUT "\n";			# stuff last line into sendmail
    # now print to the log file
    if ($setlog & 1) {
	print LOG "\n";			# stuff last line into sendmail
    }
    close(IN);
    close(OUT);
    &parseaddress ("/tmp/csm$$", "\n\$f address header transformations\n");

# Get the R= and S= special rulesets from the configuration
# now print to the log file
if ($setlog & 1) {
  print LOG "\nGet the R= and S= mailer specific rulesets\n";
}

open(FID, "grep ^M $cffile|");
while (<FID>)
{
#    Mether,	P=[IPC], F=msDFMueCX, S=11, R=21, A=IPC $h
    chop;
    $thisline = $_;
    $thisline =~ s/M//;
    $thisline =~ s/,.*//;
    $thisline =~ tr/A-Z/a-z/;
    $sendrule = $_;
    $sendrule =~ s/.*S=//;
    $sendrule =~ s/,.*//;
    if ($sendrule=~q!/!) {
      ($esendrule, $hsendrule) = split (q!/!, $sendrule);
    } else {
      $esendrule = $hsendrule = $sendrule;
    }
    $recvrule = $_;
    $recvrule =~ s/.*R=//;
    $recvrule =~ s/,.*//;
    if ($recvrule=~q!/!) {
      ($erecvrule, $hrecvrule) = split (q!/!, $recvrule);
    } else {
      $erecvrule = $hrecvrule = $recvrule;
    }
    $esendrules{$thisline} = $esendrule;
    $hsendrules{$thisline} = $hsendrule;
    $erecvrules{$thisline} = $erecvrule;
    $hrecvrules{$thisline} = $hrecvrule;
    # now print to the log file
    if ($setlog & 1) {
      print LOG "mailer: $thisline\t->\tesendrule = $esendrule, hsendrule = $hsendrule,
    		erecvrule = $erecvrule, hrecvrule = $hrecvrule\n";
    }
}
# now print to the log file
if ($setlog & 1) {
  print LOG "\n";
}
close(FID);

# pass envelope recipient names from various mailers through sendmail
foreach $i (keys %themailers)
{
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    if ($dorspath & 1) { $rspath = "$i ER: "; }

    # if the binary is less than 8.7 then use result of ruleset 0
    if ( $binver <= 6 ) {
      if ($erecvrules{$i} == 0) {
	print "\nCan't find recv rule for `$i', skipping this mailer <-------------------\n";
	next;
      }
      # sendmail 5 automatically runs ruleset 3
      if ( $binver == 5 ) {
	$rules = "2,$erecvrules{$i},4";
      } else {
	$rules = "3,2,$erecvrules{$i},4";
      }
    } else {
      print OUT "/tryflags ER\n";
      # now print to the log file
      if ($setlog & 1) {
	print LOG "/tryflags ER\n";
      }
      $rules = "/try $i";
    }
    @namelist = split(/ /, $allinput);
    foreach (@namelist) {
	print OUT "$rules $_\n";
    	# now print to the log file
    	if ($setlog & 1) {
      	  print LOG "$rules $_\n";
    }
    }
    print OUT "\n";			# stuff last line into sendmail
    # now print to the log file
    if ($setlog & 1) {
      	print LOG "\n";			# stuff last line into the log
    }
    close(OUT);
    $note = "";
    if ($erecvrules{$i} eq $hrecvrules{$i}) { $note = "and header "; }
    &parseaddress ("/tmp/csm$$", "\n`To' envelope ${note}address transformations for mailer $i [$rules]:\n");
}

# pass header recipient names from various mailers through sendmail
foreach $i (keys %themailers)
{
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    if ($dorspath & 1) { $rspath = "$i HR: "; }

    # only run the header ruleset if the mailer uses split env/hdr rulesets
    if ($hrecvrules{$i} ne $erecvrules{$i}) {
      # if the binary is less than 8.7 then use result of ruleset 0
      if ( $binver <= 6 ) {
	if ($hrecvrules{$i} == 0) {
	  print "\nCan't find recv rule for `$i', skipping this mailer <-------------------\n";
	  next;
	}
	# sendmail 5 automatically runs ruleset 3
	if ( $binver == 5 ) {
	  $rules = "2,$hrecvrules{$i},4";
	} else {
	  $rules = "3,2,$hrecvrules{$i},4";
	}
      } else {
	print OUT "/tryflags HR\n";
      # now print to the log file
      if ($setlog & 1) {
	print LOG "/tryflags HR\n";
      }
	$rules = "/try $i";
      }
      @namelist = split(/ /, $allinput);
      foreach (@namelist) {
	print OUT "$rules $_\n";
        # now print to the log file
        if ($setlog & 1) {
	  print LOG "$rules $_\n";
      }
      }
      print OUT "\n";			# stuff last line into sendmail
      # now print to the log file
      if ($setlog & 1) {
      	  print LOG "\n";			# stuff last line into the log
      }
      close(OUT);
      &parseaddress ("/tmp/csm$$", "\n`To' header address transformations for mailer $i [$rules]:\n");
    }
}

# pass envelope sender names from various mailers through sendmail
foreach $i (keys %themailers)
{
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    if ($dorspath & 1) { $rspath = "$i ES: "; }

    # if the binary is less than 8.7 then use result of ruleset 0
    if ( $binver <= 6 ) {
      if ($esendrules{$i} == 0) {
	print "\nCan't find send rule for `$i', skipping this mailer <-------------------\n";
	next;
      }
      # sendmail 5 automatically runs ruleset 3
      if ( $binver == 5 ) {
	$rules = "2,$esendrules{$i},4";
      } else {
	$rules = "3,2,$esendrules{$i},4";
      }
    } else {
      print OUT "/tryflags ES\n";
      # now print to the log file
      if ($setlog & 1) {
	print LOG "/tryflags ES\n";
      }
      $rules = "/try $i";
    }
    @namelist = split(/ /, $allinput);
    foreach (@namelist) {
	print OUT "$rules $_\n";
        # now print to the log file
        if ($setlog & 1) {
	  print LOG "$rules $_\n";
    }
    }
    print OUT "\n";			# stuff last line into sendmail
    close(IN);
    close(OUT);
    $note = "";
    if ($esendrules{$i} eq $hsendrles{$i}) {$note = "and header ";}
    &parseaddress ("/tmp/csm$$", "\n`From' envelope ${note}address transformations for mailer $i [$rules]:\n");
}

# pass header sender names from various mailers through sendmail
foreach $i (keys %themailers)
{
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    if ($dorspath & 1) { $rspath = "$i HS: "; }

    # only run the header ruleset if the mailer uses split env/hdr rulesets
    if ($hsendrules{$i} ne $esendrules{$i}) {
      # if the binary is less than 8.7 then use result of ruleset 0
      if ( $binver <= 6 ) {
	if ($hsendrules{$i} == 0) {
	  print "\nCan't find send rule for `$i', skipping this mailer <-------------------\n";
	  next;
	}
	# sendmail 5 automatically runs ruleset 3
	if ( $binver == 5 ) {
	  $rules = "2,$hsendrules{$i},4";
	} else {
	  $rules = "3,2,$hsendrules{$i},4";
	}
      } else {
	print OUT "/tryflags HS\n";
      # now print to the log file
      if ($setlog & 1) {
	print LOG "/tryflags HR\n";
      }
	$rules = "/try $i";
      }
      @namelist = split(/ /, $allinput);
      foreach (@namelist) {
	  print OUT "$rules $_\n";
          # now print to the log file
          if ($setlog & 1) {
	    print LOG "$rules $_\n";
      }
    }
      print OUT "\n";			# stuff last line into sendmail
      close(IN);
      close(OUT);
      &parseaddress ("/tmp/csm$$", "\n`From' address header transformations for mailer $i [$rules]:\n");
    }
}

foreach $i (keys %themailers)
{
    $sendmailprog = "|$sendmail -bt -C$cffile > /tmp/csm$$";
    open (OUT, $sendmailprog);
    if ($dorspath & 1) { $rspath = "\$g: "; }

    # if the binary is 8.9 or below then check if the mailer
    #	specific ruleset exists
    if ( $binver <= 9 ) {
    # if the binary is less than 8.7 then use result of ruleset 0
      if ($esendrules{$i} == 0) {
	print "\nCan't find send rule for `$i', skipping this mailer <-------------------\n";
	next;
      }
    }
    # sendmail 5 automatically runs ruleset 3
    if ( $binver == 5 ) {
      $rules = "1,4,3,1,$hsendrules{$i},4"; # XXX esendrules? book p. 431???
    } else {
      $rules = "3,1,4,3,1,$hsendrules{$i},4"; # XXX esendrules? book p. 431???
    }
    open (IN, $resolve);
    while (<IN>) {
	chop;
	/^$/ && next;
	/^#/ && next;
	$address = $_;
	print OUT "$rules $address\n";
    }
    print OUT "\n";			# stuff last line into sendmail
    close(IN);
    close(OUT);
    $note = "";
    if ($esendrules{$i} eq $hsendrles{$i}) {$note = "and header ";}
    &parseaddress ("/tmp/csm$$", "\n\$g address transformations for mailer $i [$rules]:\n");
}

unlink("/tmp/csm$$") || die "Can't unlink /tmp/csm$$";
unlink("/tmp/csm.in$$");

exit;
sendmail-base 8.14.4-4+deb7u1 / usr / sbin / checksendmail
