=back
-=head1 EXAMPLES
-
- ss
-
-Will pretty much do what you want
-
- ss -I
-
-Will take a picture of a window you select.
=cut
use File::Basename qw(basename);
use IO::Handle;
use IO::File;
+use Digest::MD5 qw(md5_hex);
+use Sys::Syslog qw(:standard :macros);
+use Data::Dumper;
use vars qw($DEBUG);
# XXX parse config file
+openlog('sshsendmail',[qw(nofatal perror pid)], LOG_MAIL);
+
my %options = (debug => 0,
- help => 0,
- man => 0,
- host => undef,
- identity => undef,
- username => undef,
- 'sendmail-options' => '',
+ help => 0,
+ man => 0,
+ host => undef,
+ identity => undef,
+ username => undef,
+ 'sendmail_options' => [],
);
+my $new_nullmailer = 0;
+## The new nullmailer passes options on STDIN and the message on FD 3.
+my $message_fd = \*STDIN;
+eval {
+ my $fh = IO::Handle->new() or
+ die "Unable to create new fd";
+ $fh->fdopen(3,"r") or
+ die "Unable to open fd 3: $!";
+ $message_fd = $fh;
+ $new_nullmailer = 1;
+ push @ARGV, map {chomp; "--$_"} <STDIN>;
+};
+
GetOptions(\%options,'identity|i=s','username|l=s','daemon|d', 'syslog|s',
- 'sendmail-options|o=s',
- 'help|h|?','man|m');
+ 'host=s',
+ 'sendmail_options|sendmail-options|o=s@',
+ 'help|h|?','man|m');
pod2usage() if $options{help};
pod2usage({verbose=>2}) if $options{man};
$DEBUG = $options{debug};
-if (not @ARGV) {
+if (not (@ARGV or defined $options{host})) {
print STDERR "${0}: Too few command-line arguments\n";
print <<END;
usage: ${0} [flags] remote-address < mail-file
exit(1);
}
-my $hostname = shift @ARGV;
+if (not defined $options{host} and @ARGV) {
+ $options{host} = shift @ARGV;
+}
-my @message = <>;
+my @message = <$message_fd>;
#throw away envelope sender
shift @message;
my @recipients;
@recipients = qw(-t) if not @recipients;
-my @ssh_arguments = ($hostname);
+my @ssh_arguments = ($options{host});
push @ssh_arguments, '-i', $options{identity} if defined $options{identity};
push @ssh_arguments, '-l', $options{username} if defined $options{username};
-push @ssh_arguments, q(cat - | /usr/lib/sendmail ).$options{'sendmail-options'}.' '.join(' ',@recipients);
-qx(ping -q -c 3 $hostname 2>/dev/null);
+my @sendmail_options;
+push @sendmail_options,
+ ref($options{sendmail_options})?@{$options{sendmail_options}}:$options{sendmail_options};
+push @sendmail_options,@recipients;
+$Data::Dumper::Useqq=1;
+my $sendmail_options = Data::Dumper->Dump([\@sendmail_options],[qw(*sendmail_options)]);
+print STDERR $sendmail_options if $DEBUG;
+push @ssh_arguments, q(perl -e ').<<EOF .q(');
+use Digest::MD5 qw(md5_hex);
+use IO::Handle;
+my \@message = <>;
+my $sendmail_options
+my \$digest = pop \@message;
+\$digest =~ /(.*)([0-9a-fA-F]{32})\n/;
+\$digest = \$2;
+if (length \$1) {
+ push \@message,\$1;
+}
+my \$message = join(q(),\@message);
+if (\$digest eq md5_hex(\$message)) {
+ my \$sendmail = IO::Handle->new();
+ open (\$sendmail,q(|-),q(/usr/lib/sendmail), \@sendmail_options) or
+ die "Unable to open sendmail: \$!";
+ print {\$sendmail} \$message or
+ die "Unable to write to sendmail: \$!";
+ close (\$sendmail) or
+ die "Unable to close sendmail: \$!";
+} else {
+ die "Digest failure! \$digest vs ".md5_hex(\$message);
+}
+EOF
+
+$Data::Dumper::Useqq=0;
+print STDERR Dumper(\@ssh_arguments) if $DEBUG;
+
+qx(ping -q -w 3 -c 1 $options{host} 2>/dev/null);
if ($?) {
- print STDERR "${0}: Failed: unable to ping $hostname\n";
- exit (9);
+ syslog(LOG_WARNING,"${0}: Failed: unable to ping $options{host}\n");
+ exit (9);
}
+print STDERR md5_hex(join('',@message))."\n" if $DEBUG;
my $ssh = new IO::Handle;
open($ssh,'|-','ssh',@ssh_arguments) or exit(17);
print {$ssh} @message or exit(17);
+print {$ssh} md5_hex(join('',@message))."\n";
close $ssh or exit(17);
if ($?) {
- print STDERR "${0}: Failed: sendmail died for some reason\n";
- exit (17);
+ syslog(LOG_WARNING,"${0}: Failed: sendmail died for some reason\n");
+ syslog(LOG_WARNING,join("\n",@ssh_arguments));
+ exit (17);
}
else {
- print STDERR "${0}: Succeeded: Yeay\n";
- exit 0;
+ syslog(LOG_INFO,"${0}: Succeeded: Yeay\n");
+ exit 0;
}