#!/usr/bin/perl

# 1. On lit les en-têtes et on mémorise l'état.

$fr="";

$rt="";

open(SM,"|/usr/sbin/sendmail -t -i -f '".@ARGV[0]."'");

chomp($A=<STDIN>);
while ($A ne "") {
    print SM $A."\n";
    if ($A=~/^From:(.*)/i) {
	$fr=$1;
    }
    if ($A=~/^Reply-to:(.*)/i) {
        $rt=$1;
    }
   chomp($A=<STDIN>);
}

$home=quotemeta $ENV{'ALTERNC_HTML'};
$ENV{'PWD'}=~/^$home\/.\/([^\/]*)/;
$user=$1;

if (!$fr) {
    if (!$rt) {
	print SM "From: ".$user."\n";
    } else {
	print SM "From: $rt\n";
	print SM "X-RealFrom: ".$user."\n";
    }
} else {
    if (!$rt) {
	print SM "Reply-To: $fr\n";
    }
    print SM "X-RealFrom: ".$user."\n";
}

# 3. On ajoute la fameuse ligne vide :)
print SM "\n";
# 4. Et on repasse la suite sans traitement (cat)
$A=<STDIN>;
while ($A) {
    print SM $A;
    $A=<STDIN>;
}
close SM;