| 1 | #!/usr/bin/perl |
1 | #!/usr/bin/perl |
| 2 | |
2 | |
| 3 | # useless stuff |
3 | # this crap is an asynchronous finger client. it's rather idiotic ;) |
| 4 | |
4 | |
| 5 | use Coro; |
5 | use Coro; |
|
|
6 | use Coro::Socket; |
| 6 | use Coro::Event; |
7 | use Coro::Event; |
|
|
8 | use AnyEvent; |
| 7 | |
9 | |
| 8 | my $stdin = Coro::Event->io(fd => \*STDIN, poll => 'r'); |
10 | my $quit = AnyEvent->condvar; |
| 9 | |
11 | |
| 10 | # this gets started everytime a user enters a finger command |
12 | # this gets started everytime a user enters a finger command |
| 11 | sub finger { |
13 | sub finger { |
| 12 | my $user = shift; |
14 | my $user = shift; |
| 13 | my $host = shift; |
15 | my $host = shift; |
| 14 | use IO::Socket::INET; |
|
|
| 15 | # is there ANY way to do non-blocking connects with IO::Socket::INET? |
|
|
| 16 | # I don't see how... |
|
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| 17 | my $io = new IO::Socket::INET PeerAddr => "$host:finger"; |
|
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| 18 | $io or die; |
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| 19 | syswrite $io, "$user\n"; |
|
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| 20 | my $r = Coro::Event->io(fd => $io, poll => 'r'); |
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| 21 | my $buf; |
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| 22 | $r->next while 0 != sysread $io, $buf, 8192, length $buf; |
|
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| 23 | #do_timer(after => 5); |
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| 24 | print $buf; |
|
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| 25 | } |
|
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| 26 | |
16 | |
| 27 | # this reads one line from the keyboard |
17 | my $fh = new Coro::Socket PeerHost => $host, PeerPort => "finger" |
| 28 | sub kbdline { |
18 | or die "$user\@$host: $!"; |
| 29 | $stdin->next; |
|
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| 30 | my $x = <STDIN>; chomp $x; $x; |
|
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| 31 | } |
|
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| 32 | |
19 | |
| 33 | # this is the main task |
20 | print $fh "$user\n"; |
| 34 | sub keyboard : Coro { |
21 | |
| 35 | $|=1; |
22 | print "$user\@$host: $_" while <$fh>; |
| 36 | while() { |
23 | print "$user\@$host: done\n"; |
| 37 | print "cmd> "; my $cmd = kbdline; |
|
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| 38 | if ($cmd eq "finger") { |
|
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| 39 | print "user> "; my $user = kbdline; |
|
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| 40 | print "host> "; my $host = kbdline; |
|
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| 41 | async { finger(@_) } $user, $host; |
|
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| 42 | } elsif ($cmd eq "quit") { |
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| 43 | unloop(777); |
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| 44 | terminate; |
|
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| 45 | } else { |
|
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| 46 | print "enter command, either 'finger' or 'quit'\n"; |
|
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| 47 | } |
|
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| 48 | } |
|
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| 49 | } |
24 | } |
| 50 | |
25 | |
| 51 | # display the time or garble the display, YMMV. |
26 | # display the time or garble the display, YMMV. |
| 52 | sub timer : Coro { |
27 | sub timer : Coro { |
| 53 | my $w = Coro::Event->timer(interval => 0.001, hard => 1); |
28 | my $w = Coro::Event->timer (interval => 0.001, hard => 1); |
| 54 | use Time::HiRes qw(time); |
29 | use Time::HiRes qw(time); |
| 55 | while () { |
30 | while () { |
| 56 | $w->next; |
31 | $w->next; |
| 57 | print "\e7\e[C\e[C\e[C\e[C\e[C\e[C\e[C\e[C <time ",time,"> \e8"; |
32 | print "\e7\e[C\e[C\e[C\e[C\e[C\e[C\e[C\e[C <time ", time, "> \e8"; |
| 58 | }; |
33 | }; |
| 59 | } |
34 | } |
| 60 | |
35 | |
| 61 | print "unlooped with value: ",loop(),"\n"; |
36 | my $stdin = new_from_fh Coro::Handle \*STDIN; |
| 62 | |
37 | |
|
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38 | $SIG{PIPE} = 'IGNORE'; |
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39 | |
|
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40 | $| = 1; |
|
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41 | while() { |
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42 | print "cmd (finger|quit)> "; my $cmd = <$stdin>; chomp $cmd; |
|
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43 | if ($cmd eq "finger") { |
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44 | print "user> "; my $user = <$stdin>; chomp $user; |
|
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45 | print "host> "; my $host = <$stdin>; chomp $host; |
|
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46 | async { finger $user, $host }; |
|
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47 | } elsif ($cmd eq "quit") { |
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48 | $quit->send; |
|
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49 | } else { |
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50 | print "unknown command '$cmd', either 'finger' or 'quit'\n"; |
|
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51 | } |
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52 | } |
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53 | |
