1 files changed, 82 insertions, 0 deletions
diff --git a/scripts/configcommon.pl b/scripts/configcommon.pl
new file mode 100644
index 000000000..38bbe80dc
--- /dev/null
+++ b/scripts/configcommon.pl
@@ -0,0 +1,82 @@
+#! /usr/bin/perl
+
+my @args=@ARGV;
+my @configoptions;
+my @configvalues;
+my @common;
+my $configcounter = 0;
+
+# first, read the 1st file
+
+open (FILE,"$args[0]") || die "Could not open $args[0]";
+while (<FILE>) {
+	my $str = $_;
+	if (/\# ([\w]+) is not set/) {
+		$configoptions[$configcounter] = $1;
+		$configvalues[$configcounter] = $str;
+		$common[$configcounter] = 1;
+		$configcounter ++;
+	} else {
+		if (/([\w]+)=/) {
+			$configoptions[$configcounter] = $1;
+			$configvalues[$configcounter] = $str;
+			$common[$configcounter] = 1;
+			$configcounter ++;
+		} else {
+			$configoptions[$configcounter] = "foobarbar";
+			$configvalues[$configcounter] = $str;
+			$common[$configcounter] = 1;
+			$configcounter ++;
+		}
+	}
+};
+
+# now, read all configfiles and see of the options match the initial one.
+# if not, mark it not common
+my $cntr=1;
+
+
+while ($cntr < @ARGV) {
+	open (FILE,$args[$cntr]) || die "Could not open $args[$cntr]";	
+	while (<FILE>) {
+		my $nooutput;
+		my $counter;
+		my $configname;
+
+		if (/\# ([\w]+) is not set/) {
+			$configname = $1;
+		} else {
+			if (/([\w]+)=/) {
+				$configname  = $1;
+			} 
+		}
+
+		$counter = 0;
+		$nooutput = 0;
+		while ($counter < $configcounter) {	
+			if ("$configname" eq "$configoptions[$counter]") {	
+				if ("$_" eq "$configvalues[$counter]") {
+					1;
+				} else {
+					$common[$counter] = 0;
+				}
+			}
+			$counter++;
+		}
+	}
+
+	$cntr++;
+}
+
+# now print the common values
+my $counter = 0;
+
+while ($counter < $configcounter) {	
+	if ($common[$counter]!=0) {
+		print "$configvalues[$counter]";
+	}
+	$counter++;
+}
+
+1;
+