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