From a53cd78ee9f122ade507aaeb4efc027b055b22f2 Mon Sep 17 00:00:00 2001
From: tausq <>
Date: Wed, 20 Oct 1999 02:33:43 +0000
Subject: [PATCH] non-block reads, limits input to 1k. fixed typo in help
 output shows "not found" message if user is not found makes finger @<domain>
 show help text

---
 ud-fingerserv | 41 +++++++++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/ud-fingerserv b/ud-fingerserv
index 07466de..67fa6a3 100755
--- a/ud-fingerserv
+++ b/ud-fingerserv
@@ -1,10 +1,10 @@
 #!/usr/bin/perl
-# $Id: ud-fingerserv,v 1.10 1999/10/17 02:21:48 tausq Exp $
+# $Id: ud-fingerserv,v 1.11 1999/10/20 04:33:43 tausq Exp $
 
 # (c) 1999 Randolph Chung. Licensed under the GPL. <tausq@debian.org>
 
-use lib '/var/www/userdir-ldap/';
-#use lib '/home/randolph/projects/userdir-ldap/web';
+#use lib '/var/www/userdir-ldap/';
+use lib '/home/randolph/projects/userdir-ldap/web';
 use strict vars;
 #use Apache::Registry;
 use IO::Handle;
@@ -65,7 +65,7 @@ if (!$use_inetd) {
     $client->autoflush(1);
     my $hostinfo = gethostbyaddr($client->peeraddr, AF_INET);
     &log(sprintf("[Connect from %s]", $hostinfo || $client->peerhost));
-    my $query = <$client>;
+    my $query = &readdata($client);
     &ProcessQuery($client, $query);
     $client->close;
     exit;
@@ -77,7 +77,7 @@ if (!$use_inetd) {
   my $sockaddr = getpeername(STDIN);
   my ($port, $addr) = unpack_sockaddr_in(getpeername(STDIN));
   &log(sprintf("[Connect from %s (%s)]", gethostbyaddr($addr, AF_INET), inet_ntoa($addr)));
-  my $query = <STDIN>;
+  my $query = &readdata(\*STDIN);
   &ProcessQuery(\*STDOUT, $query);
   exit;
 }
@@ -103,7 +103,7 @@ sub ProcessQuery {
   $query =~ s/[^\/,0-9a-z]//gi; # be paranoid about input
   my ($uid, $fields) = split(/\//, $query, 2);
   
-  if ($uid =~ /^help$/i) {
+  if (($uid eq "") || ($uid =~ /^help$/i)) {
     &sendhelp($client);
     return;
   }
@@ -113,7 +113,12 @@ sub ProcessQuery {
   $mesg = $ldap->search(base  => $config{basedn}, filter => "uid=$uid");
   $mesg->code && die $mesg->error;
   $entries = $mesg->as_struct;
-  
+
+  if ($mesg->count == 0) {
+    print $client "$uid not found at db.debian.org\n";
+    exit 0;
+  }
+
   foreach $dn (sort {$entries->{$a}->{sn}->[0] <=> $entries->{$b}->{sn}->[0]} keys(%$entries)) {
     $data = $entries->{$dn};
 
@@ -165,6 +170,26 @@ sub log {
   print STDERR "$time $msg\n";
 }
 
+sub readdata {
+  my $fh = shift;
+  my $in = undef;
+  my $out = undef;
+  my $bytesread = 0;
+
+  my $flags= fcntl($fh, F_GETFL, 0)
+     or die "Can't get flags for socket: $!\n";
+  fcntl($fh, F_SETFL, $flags | O_NONBLOCK)
+     or die "Can't make socket nonblocking: $!\n";
+						
+  while (($bytesread < 1024) && ($out !~ /\n/)) {
+    $bytesread += sysread($fh, $in, 1024);
+    $out .= $in;
+  }
+
+  $out =~ /(.*?)\n/;
+  return $1;
+}
+
 sub sendhelp {
   my $client = shift;
   
@@ -174,7 +199,7 @@ sub sendhelp {
   print $client "  where uid is the user id of the user\n";
   print $client "  the optional attributes parameter specifies what to return\n";
   print $client "    if nothing is specified, all attributes are returned.\n";
-  print $client "    The following attributes are current supported:\n";
+  print $client "    The following attributes are currently supported:\n";
   foreach (@summarykeys) {
     print $client "      $_ : $attrs{$_}\n";
   }
-- 
2.20.1