--- /dev/null
+#!/usr/bin/perl
+#
+# Script to retrieve a single article from a news server, either by
+# message-id or by group name and article number.
+#
+# Usage: nntpid <messageid>
+# or: nntpid messageid (angle brackets optional)
+# or: nntpid news.group.name 1234 (group+number form)
+#
+# The name of your news server is obtained from the environment variable
+# NNTPSERVER, or from the file /etc/nntpserver if that's not set.
+#
+# This script supports AUTHINFO GENERIC authentication using the
+# environment variable NNTPAUTH. It will only attempt this if it receives
+# a 480 response from the news server; if your news server isn't paranoid
+# then the script will never need to look at NNTPAUTH.
+
+# Copyright 2000 Simon Tatham. All rights reserved.
+# FIXME: put in a licence notice.
+
+require 5.002;
+use Socket;
+use FileHandle;
+
+$usage =
+ "usage: nntpid [ -v ] <message-id>\n" .
+ " or: nntpid [ -v ] <newsgroup> <article-number>\n" .
+ "where: -v verbose (print interaction with news server)\n" .
+ " also: nntpid --version report version number\n" .
+ " nntpid --help display this help text\n" .
+ " nntpid --licence display (MIT) licence text\n";
+
+$licence =
+ "nntpid is copyright 2000,2004 Simon Tatham.\n" .
+ "\n" .
+ "Permission is hereby granted, free of charge, to any person\n" .
+ "obtaining a copy of this software and associated documentation files\n" .
+ "(the \"Software\"), to deal in the Software without restriction,\n" .
+ "including without limitation the rights to use, copy, modify, merge,\n" .
+ "publish, distribute, sublicense, and/or sell copies of the Software,\n" .
+ "and to permit persons to whom the Software is furnished to do so,\n" .
+ "subject to the following conditions:\n" .
+ "\n" .
+ "The above copyright notice and this permission notice shall be\n" .
+ "included in all copies or substantial portions of the Software.\n" .
+ "\n" .
+ "THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n" .
+ "EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n" .
+ "MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\n" .
+ "NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS\n" .
+ "BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN\n" .
+ "ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\n" .
+ "CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n" .
+ "SOFTWARE.\n";
+
+while ($ARGV[0] =~ /^-(.+)$/) {
+ shift @ARGV;
+ $verbose=1, next if $1 eq "v";
+ if ($1 eq "-help") {
+ print STDERR $usage;
+ exit 0;
+ } elsif ($1 eq "-version") {
+ if ('$Revision$' =~ /Revision:\s+(\d+)/) {
+ print "nntpid revision $1\n";
+ } else {
+ print "nntpid: unknown revision\n";
+ }
+ exit 0;
+ } elsif ($1 eq "-licence" or $1 eq "-license") {
+ print $licence;
+ exit 0;
+ }
+}
+
+die $usage if !defined $ARGV[0];
+
+if (defined $ARGV[1]) {
+ $group = $ARGV[0];
+ $mid = $ARGV[1];
+} else {
+ $group = "misc.misc";
+ $mid = $ARGV[0];
+ $mid =~ s/^<//;
+ $mid =~ s/>$//;
+ $mid = "<$mid>";
+}
+
+$ns=$ENV{'NNTPSERVER'};
+if (!defined $ns or !length $ns) {
+ $ns = `cat /etc/nntpserver`;
+}
+$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 $group");
+&docmd("ARTICLE $mid");
+while (1) {
+ &getline;
+ s/[\r\n]//g;
+ last if /^\.$/;
+ s/^\.//;
+ print STDOUT "$_\n";
+}
+&docmd("QUIT");
+close S;
+
+sub putline {
+ my ($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) = @_;
+ while (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;
+ }
+}
--- /dev/null
+\cfg{man-identity}{nntpid}{1}{2004-11-21}{Simon Tatham}{Simon Tatham}
+
+\title Man page for \cw{nntpid}
+
+\U NAME
+
+\cw{nntpid} - retrieve a single article from a news server
+
+\U SYNOPSIS
+
+\c nntpid [ -v ] message-id
+\e bbbbbb bb iiiiiiiiii
+\c nntpid [ -v ] newsgroup-name article-number
+\e bbbbbb bb iiiiiiiiiiiiii iiiiiiiiiiiiii
+
+\U DESCRIPTION
+
+\cw{nntpid} makes a connection to a news server, retrieves a single
+article, and displays it.
+
+You can specify the article you want by either:
+
+\b giving its Message-ID. Message-IDs are globally unique, so you
+don't need to know which newsgroup the article was in. Also, they do
+not vary between news servers.
+
+\b giving a newsgroup name and an article number within that
+newsgroup. Article numbers are assigned internally by a particular
+news server, so they will be different on other servers carrying the
+same group.
+
+\U ARGUMENTS
+
+If you specify one argument, \cw{nntpid} assumes it is a Message-ID.
+The angle brackets that usually delimit Message-IDs are optional;
+\cw{nntpid} will strip them off if it sees them, and will not
+complain if it does not.
+
+If you specify two arguments, \cw{nntpid} will interpret the first
+as a newsgroup name, and the second as an article number.
+
+\U OPTIONS
+
+\dt \cw{-v}
+
+\dd Verbose mode. In this mode, \cw{nntpid} will log its entire
+conversation with the news server on standard error.
+
+\U LICENCE
+
+\cw{nntpid} is free software, distributed under the MIT licence.
+Type \cw{nntpid --licence} to see the full licence text.
+
+\versionid $Id$
~mdw / sgt / utils / commitdiff