#!/usr/bin/perl

##
# Create a NetInfo database from flat files.
# Usage: create_nidb [tag [masterhostname]]
#
# Default tag is local.
# Default master hostname for tag local is localhost.
# Default master hostname for other tags is system hostname.
##

use Sys::Hostname;

my $nipath = "/var/db/netinfo";
my $filepath = "/etc";

if ($ARGV[0]) { $tag = $ARGV[0]; }
else { $tag = "local"; }

my $nidb = "${nipath}/${tag}.nidb";

die "Error: database ${nidb} exists\n" if (-d ${nidb});

if ($ARGV[1]) { $master = $ARGV[1]; }
else 
{
	if (${tag} eq "local") { $master = "localhost"; }
	else { $master = hostname; }
}

my $nicl = "nicl -q -raw ${nidb}";

##
# For debugging:
# open(NICL, ">/dev/tty"); 
##

##
# Create the database
##

system("${nicl} -create");
open(NICL, "|${nicl}");

##
# Setup root directory
##

print NICL "create / master ${master}/${tag}\n";
if (${tag} eq "local") { print NICL "create / trusted_networks\n" };

##
# Users
##

my $checkforroot = 0;

open(PASSWD, "${filepath}/master.passwd");

print NICL "create /users\n";

while (<PASSWD>)
{
	chop;
	s/#.*$//;

	my ($user, $passwd, $uid, $gid, $class, $change, $expire, $gecos, $dir, $shell) = split(':', $_);

	if ($user)
	{
		die "Found invalid passwd entry $_\n" if ($uid eq "" || $gid eq "");
		if (${user} eq "root") { $checkforroot = 1; }

		print NICL "create /users/${user}\n";
		print NICL "create /users/${user} passwd \"${passwd}\"\n";
		print NICL "create /users/${user} uid \"${uid}\"\n";
		print NICL "create /users/${user} gid \"${gid}\"\n";
		print NICL "create /users/${user} class \"${class}\"\n" if ($class ne "");
		print NICL "create /users/${user} change \"${change}\"\n" if ($change ne "");
		print NICL "create /users/${user} expire \"${expire}\"\n" if ($expire ne "");
		print NICL "create /users/${user} realname \"${gecos}\"\n";
		print NICL "create /users/${user} home \"${dir}\"\n" if ($dir ne "");
		print NICL "create /users/${user} shell	\"${shell}\"\n" if ($shell ne "");
	}
}

close (PASSWD);

##
# Make sure there is a root user
##

if (${checkforroot} eq 0)
{
	print NICL "create /users/root\n";
	print NICL "create /users/root passwd *\n";
	print NICL "create /users/root uid 0\n";
	print NICL "create /users/root gid 0\n";
	print NICL "create /users/root change 0\n";
	print NICL "create /users/root expire 0\n";
	print NICL "create /users/root realname \"System Administrator\"\n";
	print NICL "create /users/root home /var/root\n";
	print NICL "create /users/root shell /bin/tcsh\n";
}

##
# Groups
##

open(GROUP, "${filepath}/group");

print NICL "create /groups\n";

while (<GROUP>)
{
	chop;
	s/#.*$//;

	my ($group, $passwd, $gid, $users) = split(':', $_);
	my (@users) = split(',', $users);

	if ($group)
	{
		die "Found invalid group entry $_\n" if ($gid eq "");

		print NICL "create /groups/${group}\n";
		print NICL "create /groups/${group} gid \"${gid}\"\n";
		print NICL "create /groups/${group} passwd \"${passwd}\"\n" if ($passwd ne "");
		print NICL "create /groups/${group} users \"".join('" "', @users)."\"\n" if (@users);
	}
}

close (GROUP);

##
# Groups
##

open(HOSTS, "${filepath}/hosts");

print NICL "create /machines\n";

while (<HOSTS>)
{
    chop;
    s/#.*$//;
    s/\s+/ /g;

    my ($ip_addr, @hostnames) = split(" ", $_);

    if ($ip_addr)
    {
	die "Found invalid hosts entry $_\n" unless @hostnames;

	print NICL "create /machines/${hostnames[0]}\n";
	print NICL "create /machines/${hostnames[0]} name \"".join('" "', @hostnames)."\"\n";
	print NICL "create /machines/${hostnames[0]} ip_address \"${ip_addr}\"\n";
    }
}

print NICL "create /machines/localhost serves 	\"./local\"\n";
print NICL "create /machines/broadcasthost serves 	\"../network\"\n";
print NICL "create /machines/-DHCP- serves \"../-DHCP-\"\n";
print NICL "create /machines/-DHCP- ip_address \"255.255.255.255\"\n";

close (HOSTS);

##
# Networks
##

open(NETWORKS, "${filepath}/networks");

print NICL "create /networks\n";

while (<NETWORKS>)
{
	chop;
	s/#.*$//;
	s/\s+/ /g;

	my ($name, $network, @names) = split(" ", $_);
	unshift(@names, $name);

	if ($name)
	{
		die "Found invalid networks entry $_\n" if ($network eq "");

		print NICL "create /networks/$name\n";
		print NICL "create /networks/$name name \"".join('" "', @names)."\"\n";
		print NICL "create /networks/$name address \"${network}\"\n";
	}
}

close (NETWORKS);

##
# Protocols
##

open(PROTOCOLS, "${filepath}/protocols");

print NICL "create /protocols\n";

while (<PROTOCOLS>)
{
	chop;
	s/#.*$//;
	s/\s+/ /g;

	my ($name, $number, @names) = split(" ", $_);
	unshift(@names, $name);

	if ($name)
	{
		die "Found invalid protocols entry $_\n" if ($number eq "");

		print NICL "create /protocols/$name\n";
		print NICL "create /protocols/$name name \"".join('" "', @names)."\"\n";
		print NICL "create /protocols/$name number \"${number}\"\n";
	}
}

close (PROTOCOLS);

##
# RPCs
##

open(RPC, "${filepath}/rpc");

print NICL "create /rpcs\n";

while (<RPC>)
{
	chop;
	s/#.*$//;
	s/\s+/ /g;

	my ($name, $number, @names) = split(" ", $_);
	unshift(@names, $name);

	if ($name)
	{
		die "Found invalid rpc entry $_\n" if ($number eq "");

		print NICL "create /rpcs/$name\n";
		print NICL "create /rpcs/$name name \"".join('" "', @names)."\"\n";
		print NICL "create /rpcs/$name number \"${number}\"\n";
	}
}

close (RPC);

##
# Services
##

open(SERVICES, "${filepath}/services");

print NICL "create /services\n";

while (<SERVICES>)
{
	chop;
	s/#.*$//;
	s/\s+/ /g;

	my ($name, $connection, @names) = split(" ", $_);
	unshift(@names, $name);
	my ($port, $protocol) = split("/", $connection);

	if ($name)
	{
		die "Found invalid services entry $_\n" if ($port eq "" || $protocol eq "");

		print NICL "create /services/$name\n";
		print NICL "create /services/$name name \"".join('" "', @names)."\"\n";
		print NICL "create /services/$name port \"${port}\"\n";
		print NICL "append /services/$name protocol \"${protocol}\"\n";
	}
}

##
# Aliases
##

print NICL "create /aliases\n";
print NICL "create /aliases/administrator\n";
print NICL "create /aliases/administrator members root\n";
print NICL "create /aliases/postmaster\n";
print NICL "create /aliases/postmaster members root\n";
print NICL "create /aliases/MAILER-DAEMON\n";
print NICL "create /aliases/MAILER-DAEMON members postmaster\n";
print NICL "create /aliases/MAILER-AGENT\n";
print NICL "create /aliases/MAILER-AGENT members postmaster\n";
print NICL "create /aliases/nobody\n";
print NICL "create /aliases/nobody members root\n";
print NICL "create /aliases/dumper\n";
print NICL "create /aliases/dumper members root\n";
print NICL "create /aliases/manager\n";
print NICL "create /aliases/manager members root\n";
print NICL "create /aliases/operator\n";
print NICL "create /aliases/operator members root\n";

##
# Mounts
##

print NICL "create /mounts\n";

##
# Printers
##

print NICL "create /printers\n";

##
# Clean up
##

close (NICL);