📄 200_ping_tcp.t
字号:
BEGIN { if ($ENV{PERL_CORE}) { unless ($ENV{PERL_TEST_Net_Ping}) { print "1..0 # Skip: network dependent test\n"; exit; } chdir 't' if -d 't'; @INC = qw(../lib); } unless (eval "require Socket") { print "1..0 \# Skip: no Socket\n"; exit; } unless (getservbyname('echo', 'tcp')) { print "1..0 \# Skip: no echo port\n"; exit; }}# Remote network test using tcp protocol.## NOTE:# Network connectivity will be required for all tests to pass.# Firewalls may also cause some tests to fail, so test it# on a clear network. If you know you do not have a direct# connection to remote networks, but you still want the tests# to pass, use the following:## $ PERL_CORE=1 make testuse Test;use Net::Ping;plan tests => 13;# Everything loaded fineok 1;my $p = new Net::Ping "tcp",9;# new() worked?ok !!$p;# Test on the default portok $p -> ping("localhost");# Change to use the more common web port.# This will pull from /etc/services on UNIX.# (Make sure getservbyname works in scalar context.)ok ($p -> {port_num} = (getservbyname("http", "tcp") || 80));# Test localhost on the web portok $p -> ping("localhost");# Hopefully this is never a routeable hostok !$p -> ping("172.29.249.249");# Test a few remote servers# Hopefully they are up when the tests are run.ok $p -> ping("www.geocities.com");ok $p -> ping("ftp.geocities.com");ok $p -> ping("www.freeservers.com");ok $p -> ping("ftp.freeservers.com");ok $p -> ping("yahoo.com");ok $p -> ping("www.yahoo.com");ok $p -> ping("www.about.com");
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -