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#!/opt/bin/perl |
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use Getopt::Long; |
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use AnyEvent; |
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use AnyEvent::Socket; |
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use AnyEvent::FastPing; |
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use strict; |
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sub usage { |
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print STDERR <<EOF; |
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Usage: fastping [-w<seconds>] [-r<packets>] [-c[count] [-q] range... |
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--wait | -w after pinging, wait this many seconds on replies [default 0.25] |
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--rate | -r maximum number of packets send/second [default 0, unlimited] |
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--count | -c how many pings to send to each address [default 1] |
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--quiet | -q do not process and output ping replies (also faster) |
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range low[,high[,bandwidth]] |
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low and high must be either IPv4 or IPv6 addresses, specifying |
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a range of addresses to ping. If high is omitted, it is assumed |
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to be equal to low. The optional bandwidth gives the IP-level |
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maximum bandwidth in kilobytes per second. |
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Note: |
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* you should almost always specify a packet rate and possible range bandwidths, |
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as the default is to ping as fast as possible. |
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Output: |
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For each ping reply received, net-fping will output a single line with |
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three space-separated columns, the IP address, the iteration count and |
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the round trip time in seconds (as a float). |
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Example: |
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ping 10.0.0.1 .. 10.0.0.254 with at most 8 kilobytes/second and |
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11.0.0.1 .. 11.0.0.254 as fast as possible, never exceeding 1000 packets/s, |
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and waiting up to three seconds to wait for delayed replies: |
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fastping -w3 -r1000 10.0.0.1,10.0.0.254,8 11.0.0.1,11.0.0.254 |
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EOF |
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exit shift; |
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} |
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@ARGV or usage 0; |
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Getopt::Long::Configure ("bundling", "no_ignore_case"); |
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my $count = 1; |
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my $rate = 0; |
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my $wait = 0.25; |
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1.5 |
my $count = 1; |
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1.1 |
my $quiet = 0; |
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GetOptions ( |
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"help|h" => sub { usage 0 }, |
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"count|c=i" => \$count, |
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"rate|r=f" => \$rate, |
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"wait|w=f" => \$wait, |
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"quiet|q" => \$quiet, |
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) or usage 1; |
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my @ranges; |
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for (@ARGV) { |
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my ($lo, $hi, $kbps) = split /,/; |
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my $pktsz; |
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$hi = $lo unless $hi; |
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$lo = AnyEvent::Socket::parse_address $lo; |
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$hi = AnyEvent::Socket::parse_address $hi; |
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(length $lo) and (length $lo == length $hi) |
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or die "ip adress parse error"; |
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$pktsz = (4 == length $lo) |
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? AnyEvent::FastPing::icmp4_pktsize |
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: AnyEvent::FastPing::icmp6_pktsize; |
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push @ranges, [$lo, $hi, $kbps && $pktsz / ($kbps * 1000)]; |
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} |
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{ |
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my $pinger = new AnyEvent::FastPing; |
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$pinger->interval ($rate && 1 / $rate); |
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$pinger->max_rtt (0); |
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$pinger->on_recv (sub { |
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for (@{ $_[0] }) { |
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printf "%s %g\n", AnyEvent::Socket::format_address $_->[0], $_->[1]; |
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} |
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}) unless $quiet; |
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for my $iter (1 .. $count) { |
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$pinger->add_range (@$_) |
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for @ranges; |
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$pinger->on_idle (my $done = AE::cv); |
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$pinger->start; |
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$done->wait; |
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1.1 |
} |
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{ |
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my $wait_w = AE::timer $wait, 0, my $done = AE::cv; |
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$done->wait; |
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} |
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1.1 |
} |
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