git-cache-proxy: Tidy up copyright licence info

[chiark-utils.git] / scripts / nntpid

diff --git a/scripts/nntpid b/scripts/nntpid
index be961eee6431ca79d979c7750b0a5f4a538341a3..0de52a5c60bc9dca0c8086bb2d0a00789d19768b 100755 (executable)
--- a/scripts/nntpid
+++ b/scripts/nntpid
@@ -2,34 +2,42 @@
 
 # Originally by Simon Tatham
 # Modified by Richard Kettlewell, Colin Watson, Ian Jackson
+#
+# Copyright -2011 Simon Tatham
+# Copyright 2011 Richard Kettlewell
+# Copyright 2011 Colin Watson
+# Copyright 2011 Ian Jackson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# SOFTWARE IN THE PUBLIC INTEREST, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+# DEALINGS IN THE SOFTWARE.
+
+use ChiarkNNTP;
+
+our $verbose;
+($verbose='STDERR', shift @ARGV) if $ARGV[0] eq "-v";
+
+my $c = cnntp_connect($verbose);
+$c->banner_reader();
+
+our $code;
 
-require 5.002;
-use Socket;
-use FileHandle;
-
-$verbose=1, shift @ARGV if $ARGV[0] eq "-v";
-
-$ns=$ENV{'NNTPSERVER'};
-if (!defined $ns or !length $ns) {
-  $ns = `cat /etc/nntpserver`;
-  chomp($ns);
-}
-$port = (getservbyname("nntp", "tcp"))[2];
-$ns = inet_aton($ns);
-$proto = getprotobyname("tcp");
-$paddr = sockaddr_in($port, $ns);
-
-socket(S,PF_INET,SOCK_STREAM,$proto) or die "socket: $!";
-connect(S,$paddr) or die "connect: $!";
-
-S->autoflush(1);
-
-&getline;
-$code =~ /^2\d\d/ or die "no initial greeting from server\n";
-
-&docmd("MODE READER");
 # some servers require a GROUP before an ARTICLE command
-&docmd("GROUP misc.misc");
+$c->docmd("GROUP misc.misc");
 
 if(@ARGV == 0) {
   while(<>) {
@@ -49,7 +57,7 @@ if(@ARGV == 0) {
   }
 }
 
-&docmd("QUIT");
+$c->docmd("QUIT");
 close S;
 
 sub lookup {
@@ -57,12 +65,12 @@ sub lookup {
 
   if($mid !~ /\@/ and $mid =~ /^(.*)[: ](\d+)$/) {
       my ($g, $n) = ($1, $2);
-      &docmd("GROUP $g");
-      &docmd("ARTICLE $n");
+      $c->docmd("GROUP $g");
+      $c->docmd("ARTICLE $n");
   } else {
       $mid =~ s/.*\<//;
       $mid =~ s/\>.*//;
-      &docmd("ARTICLE <$mid>");
+      $c->docmd("ARTICLE <$mid>");
   }
 
   my $fh= 'STDOUT';
@@ -74,7 +82,7 @@ sub lookup {
   }
   
   while (1) {
-    &getline;
+    ($code,$_) = $c->getline();
     s/[\r\n]//g;
     last if /^\.$/;
     s/^\.//;
@@ -85,59 +93,3 @@ sub lookup {
     close $fh or die "$? $!";
   }
 }
-
-sub putline {
-  my ($line) = @_;
-  print STDERR ">>> $line\n" if $verbose;
-  print S "$line\r\n";
-}
-
-sub getline {
-  $_ = <S>;
-  s/[\r\n]*$//s;
-  $code = substr($_,0,3);
-  print STDERR "<<< $_\n" if $verbose;
-}
-
-sub docmd {
-  my ($cmd) = @_;
-  for my $n (0,1) {
-    &putline($cmd);
-    &getline;
-    if ($code eq "480") { &auth; } else { last; }
-  }
-  $code =~ /^2\d\d/ or die "failed on `$cmd':\n$_\n";
-}
-
-sub auth {
-  # Authentication.
-  if ($ENV{"NNTPAUTH"}) {
-    $auth = $ENV{"NNTPAUTH"};
-    &putline("AUTHINFO GENERIC $auth");
-    pipe AUTHSTDIN, TOAUTH or die "unable to create pipes";
-    pipe FROMAUTH, AUTHSTDOUT or die "unable to create pipes";
-    $pid = fork;
-    if (!defined $pid) {
-      die "unable to fork for authentication helper";
-    } elsif ($pid == 0) {
-      # we are child
-      $ENV{"NNTP_AUTH_FDS"} = "0.1";
-      open STDIN, "<&AUTHSTDIN";
-      open STDOUT, ">&AUTHSTDOUT";
-      close S;
-      exec $auth;
-    }
-    # we are parent
-    close AUTHSTDIN;
-    close AUTHSTDOUT;
-    autoflush TOAUTH 1;
-    &getline; print TOAUTH "$_\n";
-    while (<FROMAUTH>) {
-      s/[\r\n]*$//s;
-      &putline($_);
-      &getline;
-      print TOAUTH "$_\n";
-    }
-    die "failed authentication\n" unless $? == 0;
-  }
-}