#!/usr/local/bin/perl
#
# This script generates a link file on standard output for a given
# gopher host/port/directory.
#
# Example:
#
# gopherdist gopher.micro.umn.edu 70
#
# gopherdist gopher.micro.umn.edu 70 "1/UofM Campus Information"


sub dokill {
    kill 9,$child if $child;
}

sub Opengopher {

    local($them,$port) = @_;	
    $them = 'localhost' unless $them;

    $AF_INET = 2;
    $SOCK_STREAM = 1;

    $SIG{'INT'} = 'dokill';

    $sockaddr = 'S n a4 x8';

    chop($hostname = `hostname`);

    ($name,$aliases,$proto) = getprotobyname('tcp');
    ($name,$aliases,$port) = getservbyname($port,'tcp')
	unless $port =~ /^\d+$/;;
    ($name,$aliases,$type,$len,$thisaddr) = gethostbyname($hostname);
    ($name,$aliases,$type,$len,$thataddr) = gethostbyname($them);

    $this = pack($sockaddr, $AF_INET, 0, $thisaddr);
    $that = pack($sockaddr, $AF_INET, $port, $thataddr);

    # Make the socket filehandle.
    socket(S, $AF_INET, $SOCK_STREAM, $proto) || die $!;

    # Give the socket an address.
    bind(S, $this) || die $!;

    # Call up the server.
    connect(S,$that) || die $!;

    # Set socket to be command buffered.
    select(S); $| = 1; select(STDOUT);

}

$Host    = shift(@ARGV) || die "Usage: $0 host port [path]";
$Port    = shift(@ARGV) || die "Usage: $0 host port [path]";
$Path    = shift(@ARGV);


&Opengopher( $Host, $Port);

print S "$Path\r\n";


while (<S>) {
    chop;
    chop;
    if (/^\.$/) {
	exit;
    }

    ($ObjName, $Path, $Host, $Port) = split('\t', $_, 6);
    $Name = substr($ObjName, 1);
    $Obj  = substr($ObjName, 0, 1);

    print "Type=$Obj\n";
    print "Name=$Name\n";
    print "Path=$Path\n";
    print "Host=$Host\n";
    print "Port=$Port\n";
    print "#\n";


}