Dump the returned packet

diff --git a/bin/tests/system/packet.pl b/bin/tests/system/packet.pl
index 28d6a0987a46731a0d4e53bee999537ceff88cfd..985b21c26f18150b47594549997efcebf1be5b12 100644 (file)
--- a/bin/tests/system/packet.pl
+++ b/bin/tests/system/packet.pl
@@ -31,7 +31,7 @@
 # Note that we do not wait for a response for the server.  This is simply
 # a way of injecting arbitrary packets to test server resposnes.
 #
-# Usage: packet.pl [-a <address>] [-p <port>] [-t (udp|tcp)] [-r <repeats>] [filename]
+# Usage: packet.pl [-a <address>] [-d] [-p <port>] [-t (udp|tcp)] [-r <repeats>] [filename]
 #
 # If not specified, address defaults to 127.0.0.1, port to 53, protocol
 # to udp, and file to stdin.
@@ -46,12 +46,12 @@ use IO::File;
 use IO::Socket;
 
 sub usage {
-    print ("Usage: packet.pl [-a address] [-p port] [-t (tcp|udp)] [-r <repeats>] [file]\n");
+    print ("Usage: packet.pl [-a address] [-d] [-p port] [-t (tcp|udp)] [-r <repeats>] [file]\n");
     exit 1;
 }
 
 my %options={};
-getopts("a:p:t:r:", \%options);
+getopts("a:dp:t:r:", \%options);
 
 my $addr = "127.0.0.1";
 $addr = $options{a} if defined $options{a};
@@ -103,5 +103,38 @@ while ($repeats > 0) {
 }
 
 print ("sent $bytes bytes to $addr:$port\n");
+if (defined $options{d}) {
+       use Net::DNS;
+       use Net::DNS::Packet;
+
+       my $rin;
+       my $rout;
+       $rin = '';
+        vec($rin, fileno($sock), 1) = 1;
+       select($rout = $rin, undef, undef, 1);
+       if (vec($rout, fileno($sock), 1)) {{
+                my $buf;
+               if ($proto eq "udp") {
+                       $sock->recv($buf, 512);
+               } else {
+                       my $n = $sock->sysread($buf, 2);
+                       last unless $n == 2;
+                       my $len = unpack("n", $buf);
+                       $n = $sock->sysread($buf, $len);
+                       last unless $n == $len;
+               }
+
+               my $response;
+               if ($Net::DNS::VERSION > 0.68) {
+                       $response = new Net::DNS::Packet(\$buf, 0);
+                       $@ and die $@;
+               } else {
+                       my $err;
+                       ($response, $err) = new Net::DNS::Packet(\$buf, 0);
+                       $err and die $err;
+               }
+               $response->print;
+       }}
+}
 $sock->close;
 close $file;