1 files changed, 54 insertions, 0 deletions
diff --git a/kernel/xpp/utils/zconf/Zaptel/Config/Defaults.pm b/kernel/xpp/utils/zconf/Zaptel/Config/Defaults.pm
new file mode 100644
index 0000000..1d11403
--- /dev/null
+++ b/kernel/xpp/utils/zconf/Zaptel/Config/Defaults.pm
@@ -0,0 +1,54 @@
+package Zaptel::Config::Defaults;
+#
+# Written by Oron Peled <oron@actcom.co.il>
+# Copyright (C) 2007, Xorcom
+# This program is free software; you can redistribute and/or
+# modify it under the same terms as Perl itself.
+#
+# $Id$
+#
+use strict;
+
+# Use the shell to source a file and expand a given list
+# of variables.
+sub do_source($@) {
+	my $file = shift;
+	my @vars = @_;
+	my @output = `env -i sh -ec '. $file; export @vars; for i in @vars; do eval echo \$i=\\\$\$i; done'`;
+	die "$0: Sourcing '$file' exited with $?" if $?;
+	my %vars;
+	
+	foreach my $line (@output) {
+		chomp $line;
+		my ($k, $v) = split(/=/, $line, 2);
+		$vars{$k} = $v if grep /^$k$/, @vars;
+	}
+	return %vars;
+}
+
+sub source_vars {
+	my @vars = @_;
+	my $default_file;
+	my %system_files = (
+			"/etc/default/zaptel"	=> 'Debian and friends',
+			"/etc/sysconfig/zaptel"	=> 'Red Hat and friends',
+		);
+
+	if(defined $ENV{ZAPTEL_DEFAULTS}) {
+		$default_file = $ENV{ZAPTEL_DEFAULTS};
+	} else {
+		foreach my $f (keys %system_files) {
+			if(-r $f) {
+				if(defined $default_file) {
+					die "An '$f' collides with '$default_file'";
+				}
+				$default_file = $f;
+			}
+		}
+	}
+	die "No default_file" unless $default_file;
+	my %vars = Zaptel::Config::Defaults::do_source($default_file, @vars);
+	return ($default_file, %vars);
+}
+
+1;