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2006-03-29 07:29:55 by steve

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Rewritten in Perl.
  Only copy non-system password file entries.  *Always* copy /etc/shadow.
 This will stop system IDs such as Debian-exim from being corrupted.
 (See debian bug #357641)
This commit is contained in:
steve
2006-03-29 07:29:55 +00:00
parent 33f2126bfc
commit 312710044c
1 changed files with 67 additions and 13 deletions
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80
etc/hook.d/60-copy-host-files
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@@ -1,30 +1,84 @@
#!/bin/sh
#!/usr/bin/perl -w
#
# This script copies "essential" files from the host to the new
# system.
#
# At the same time it tries to copy all non-system accounts from
# the host system into the new guest.
#
# Steve
# --
# http://www.steve.org.uk/
prefix=$1
use strict;
use File::Copy;
my $prefix = shift;
die "Prefix must be given" unless defined( $prefix );
die "Prefix must be a directory" unless ( -d $prefix );
#
# Make sure we have $prefix/etc
#
die "Prefix is missing /etc : $prefix" unless ( -d $prefix . "/etc" );
#
# Copy some files literally.
#
my @files = ( "/etc/hosts",
"/etc/shadow",
"/etc/resolv.conf"
);
foreach my $file ( @files )
{
File::Copy::copy( $file, $prefix . "/etc/" );
File::Copy::copy( $file, $prefix . "/etc/" );
}
# Compatibility with resolvconf (#355910)
cat /etc/resolv.conf > ${prefix}/etc/resolv.conf
cp /etc/passwd ${prefix}/etc/
cp /etc/shadow ${prefix}/etc/
cp /etc/group ${prefix}/etc/
cp /etc/gshadow ${prefix}/etc/
#
# If sudo is installed upon the host then install it upon the guest,
# with the same setup.
#
if [ -e /etc/sudoers ]; then
cp /etc/sudoers ${prefix}/etc/
chmod 440 ${prefix}/etc/sudoers
DEBIAN_FRONTEND=noninteractive chroot ${prefix} /usr/bin/apt-get --yes --force-yes install sudo
fi
if ( ( -e "/etc/sudoers" ) && ( -x $prefix . "/usr/bin/apt-get" ) )
{
File::Copy::copy( "/etc/sudoers", $prefix . "/etc" );
chmod( 0440, $prefix. "/etc/sudoers" );
`DEBIAN_FRONTEND=noninteractive chroot ${prefix} /usr/bin/apt-get --yes --force-yes install sudo`;
}
#
# Now modify the password file.
#
#
open( ORIG, "<", "/etc/passwd" ) or die "Failed to open /etc/passwd - $!";
open( NEW, ">>", $prefix . "/etc/passwd" ) or die "Failed to open $prefix/etc/passwd - $!";
foreach my $line ( <ORIG> )
{
chomp( $line );
if ( $line =~ /^([^:]+):([^:]+):([^:]+)/ )
{
my $user = $1;
my $pass = $2;
my $uid = $3;
if ( ( $uid >= 1000 ) &&
( $user ne "nobody" ) )
{
print NEW $line . "\n";
}
}
}
close( NEW );
close( ORIG );