3 unless ($ENV{PERL_TEST_Net_Ping}) {
4 print "1..0 # Skip: network dependent test\n";
8 unless (eval "require Socket") {
9 print "1..0 \# Skip: no Socket\n";
12 unless (getservbyname('echo', 'tcp')) {
13 print "1..0 \# Skip: no echo port\n";
16 unless (getservbyname('http', 'tcp')) {
17 print "1..0 \# Skip: no http port\n";
22 # Remote network test using syn protocol.
25 # Network connectivity will be required for all tests to pass.
26 # Firewalls may also cause some tests to fail, so test it
27 # on a clear network. If you know you do not have a direct
28 # connection to remote networks, but you still want the tests
29 # to pass, use the following:
31 # $ PERL_CORE=1 make test
33 # Try a few remote servers
35 # Hopefully this is never a routeable host
36 "172.29.249.249" => 0,
38 # Hopefully all these web ports are open
39 "www.geocities.com." => 1,
40 "www.freeservers.com." => 1,
42 "www.yahoo.com." => 1,
43 "www.about.com." => 1,
44 "www.microsoft.com." => 1,
51 plan tests => ((keys %{ $webs }) * 2 + 3);
53 # Everything loaded fine
56 my $can_alarm = eval {alarm 0; 1;};
59 alarm(shift) if $can_alarm;
68 my $p = new Net::Ping "syn", 10;
73 # Change to use the more common web port.
74 # (Make sure getservbyname works in scalar context.)
75 ok ($p -> {port_num} = getservbyname("http", "tcp"));
77 foreach my $host (keys %{ $webs }) {
78 # ping() does dns resolution and
79 # only sends the SYN at this point
80 Alarm(50); # (Plenty for a DNS lookup)
81 if (!ok $p -> ping($host)) {
82 print STDERR "CANNOT RESOLVE $host $p->{bad}->{$host}\n";
87 while (my $host = $p->ack()) {
88 if (!ok $webs->{$host}) {
89 print STDERR "SUPPOSED TO BE DOWN: http://$host/\n";
91 delete $webs->{$host};
95 foreach my $host (keys %{ $webs }) {
96 if (!ok !$webs->{$host}) {
97 print STDERR "DOWN: http://$host/ [",($p->{bad}->{$host} || ""),"]\n";