| 1 | #!/usr/bin/perl |
1 | #!/usr/bin/perl |
| 2 | |
2 | |
| 3 | # useless stuff |
3 | # this crap is an asynchroneous finger client. it's rather idiotic ;) |
| 4 | |
4 | |
| 5 | use Coro; |
5 | use Coro; |
| 6 | use Coro::Event; |
6 | use Coro::Event; |
| 7 | |
7 | use Coro::Socket; |
| 8 | my $stdin = Coro::Event->io(fd => \*STDIN, poll => 'r'); |
|
|
| 9 | |
8 | |
| 10 | # this gets started everytime a user enters a finger command |
9 | # this gets started everytime a user enters a finger command |
| 11 | sub finger { |
10 | sub finger { |
| 12 | my $user = shift; |
11 | my $user = shift; |
| 13 | my $host = shift; |
12 | my $host = shift; |
| 14 | use IO::Socket::INET; |
13 | |
| 15 | # is there ANY way to do non-blocking connects with IO::Socket::INET? |
14 | my $fh = new Coro::Socket PeerHost => $host, PeerPort => "finger" |
| 16 | # I don't see how... |
15 | or die "$user\@$host: $!"; |
| 17 | my $io = new IO::Socket::INET PeerAddr => "$host:finger"; |
16 | |
| 18 | $io or die; |
|
|
| 19 | syswrite $io, "$user\n"; |
17 | print $fh "$user\n"; |
| 20 | my $r = Coro::Event->io(fd => $io, poll => 'r'); |
18 | |
| 21 | my $buf; |
19 | print "$user\@$host: $_" while <$fh>; |
| 22 | $r->next while 0 != sysread $io, $buf, 8192, length $buf; |
20 | print "$user\@$host: done\n"; |
| 23 | #do_timer(after => 5); |
|
|
| 24 | print $buf; |
|
|
| 25 | } |
21 | } |
| 26 | |
22 | |
| 27 | # this reads one line from the keyboard |
23 | my $stdin = new_from_fh Coro::Handle \*STDIN; |
| 28 | sub kbdline { |
|
|
| 29 | $stdin->next; |
|
|
| 30 | my $x = <STDIN>; chomp $x; $x; |
|
|
| 31 | } |
|
|
| 32 | |
24 | |
| 33 | # this is the main task |
25 | # this is the main task |
| 34 | sub keyboard : Coro { |
26 | sub keyboard : Coro { |
| 35 | $|=1; |
27 | $|=1; |
| 36 | while() { |
28 | while() { |
| 37 | print "cmd> "; my $cmd = kbdline; |
29 | print "cmd> "; my $cmd = <$stdin>; chomp $cmd; |
| 38 | if ($cmd eq "finger") { |
30 | if ($cmd eq "finger") { |
| 39 | print "user> "; my $user = kbdline; |
31 | print "user> "; my $user = <$stdin>; chomp $user; |
| 40 | print "host> "; my $host = kbdline; |
32 | print "host> "; my $host = <$stdin>; chomp $host; |
| 41 | async { finger(@_) } $user, $host; |
33 | async { finger($user, $host) }; |
| 42 | } elsif ($cmd eq "quit") { |
34 | } elsif ($cmd eq "quit") { |
| 43 | unloop(777); |
35 | unloop(777); |
| 44 | terminate; |
36 | terminate; |
| 45 | } else { |
37 | } else { |
| 46 | print "enter command, either 'finger' or 'quit'\n"; |
38 | print "unknown command '$cmd', either 'finger' or 'quit'\n"; |
| 47 | } |
39 | } |
| 48 | } |
40 | } |
| 49 | } |
41 | } |
|
|
42 | |
|
|
43 | async { finger("root", "localhost") }; |
| 50 | |
44 | |
| 51 | # display the time or garble the display, YMMV. |
45 | # display the time or garble the display, YMMV. |
| 52 | sub timer : Coro { |
46 | sub timer : Coro { |
| 53 | my $w = Coro::Event->timer(interval => 0.001, hard => 1); |
47 | my $w = Coro::Event->timer(interval => 0.001, hard => 1); |
| 54 | use Time::HiRes qw(time); |
48 | use Time::HiRes qw(time); |
