1 files changed, 138 insertions, 0 deletions
diff --git a/beagle/debian-rfs/usr/share/perl5/Debconf/DbDriver/File.pm b/beagle/debian-rfs/usr/share/perl5/Debconf/DbDriver/File.pm
new file mode 100644
index 0000000..ab09a47
--- /dev/null
+++ b/beagle/debian-rfs/usr/share/perl5/Debconf/DbDriver/File.pm
@@ -0,0 +1,138 @@
+#!/usr/bin/perl -w
+# This file was preprocessed, do not edit!
+
+
+package Debconf::DbDriver::File;
+use strict;
+use Debconf::Log qw(:all);
+use POSIX ();
+use Fcntl qw(:DEFAULT :flock);
+use IO::Handle;
+use base 'Debconf::DbDriver::Cache';
+
+
+use fields qw(filename mode format _fh);
+
+
+sub init {
+	my $this=shift;
+
+	if (exists $this->{mode}) {
+		$this->{mode} = oct($this->{mode});
+	}
+	else {
+		$this->{mode} = 0600;
+	}
+	$this->{format} = "822" unless exists $this->{format};
+	$this->{backup} = 1 unless exists $this->{backup};
+
+	$this->error("No format specified") unless $this->{format};
+	eval "use Debconf::Format::$this->{format}";
+	if ($@) {
+		$this->error("Error setting up format object $this->{format}: $@");
+	}
+	$this->{format}="Debconf::Format::$this->{format}"->new;
+	if (not ref $this->{format}) {
+		$this->error("Unable to make format object");
+	}
+
+	$this->error("No filename specified") unless $this->{filename};
+
+	debug "db $this->{name}" => "started; filename is $this->{filename}";
+	
+	if (! -e $this->{filename}) {
+		$this->{backup}=0;
+		sysopen(my $fh, $this->{filename}, 
+				O_WRONLY|O_TRUNC|O_CREAT,$this->{mode}) or
+			$this->error("could not open $this->{filename}");
+		close $fh;
+	}
+
+	my $implicit_readonly=0;
+	if (! $this->{readonly}) {
+		if (open ($this->{_fh}, "+<", $this->{filename})) {
+			while (! flock($this->{_fh}, LOCK_EX | LOCK_NB)) {
+				next if $! == &POSIX::EINTR;
+				$this->error("$this->{filename} is locked by another process: $!");
+				last;
+			}
+		}
+		else {
+			$implicit_readonly=1;
+		}
+	}
+	if ($this->{readonly} || $implicit_readonly) {
+		if (! open ($this->{_fh}, "<", $this->{filename})) {
+			$this->error("could not open $this->{filename}: $!");
+			return; # always abort, even if not throwing fatal error
+		}
+	}
+
+	$this->SUPER::init(@_);
+
+	debug "db $this->{name}" => "loading database";
+
+	while (! eof $this->{_fh}) {
+		my ($item, $cache)=$this->{format}->read($this->{_fh});
+		$this->{cache}->{$item}=$cache;
+	}
+	if ($this->{readonly} || $implicit_readonly) {
+		close $this->{_fh};
+	}
+}
+
+
+sub shutdown {
+	my $this=shift;
+
+	return if $this->{readonly};
+
+	if (grep $this->{dirty}->{$_}, keys %{$this->{cache}}) {
+		debug "db $this->{name}" => "saving database";
+	}
+	else {
+		debug "db $this->{name}" => "no database changes, not saving";
+
+		delete $this->{_fh};
+
+		return 1;
+	}
+
+	sysopen(my $fh, $this->{filename}."-new",
+			O_WRONLY|O_TRUNC|O_CREAT,$this->{mode}) or
+		$this->error("could not write $this->{filename}-new: $!");
+	while (! flock($fh, LOCK_EX | LOCK_NB)) {
+		next if $! == &POSIX::EINTR;
+		$this->error("$this->{filename}-new is locked by another process: $!");
+		last;
+	}
+	$this->{format}->beginfile;
+	foreach my $item (sort keys %{$this->{cache}}) {
+		next unless defined $this->{cache}->{$item}; # skip deleted
+		$this->{format}->write($fh, $this->{cache}->{$item}, $item)
+			or $this->error("could not write $this->{filename}-new: $!");
+	}
+	$this->{format}->endfile;
+
+	$fh->flush or $this->error("could not flush $this->{filename}-new: $!");
+	$fh->sync or $this->error("could not sync $this->{filename}-new: $!");
+
+	if (-e $this->{filename} && $this->{backup}) {
+		rename($this->{filename}, $this->{filename}."-old") or
+			debug "db $this->{name}" => "rename failed: $!";
+	}
+	rename($this->{filename}."-new", $this->{filename}) or
+		$this->error("rename failed: $!");
+
+	delete $this->{_fh};
+
+	return 1;
+}
+
+
+sub load {
+	return undef;
+}
+
+
+1