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#!/usr/bin/perl
#
# Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
# Copyright (C) 2000, 2001 Internet Software Consortium.
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
# $Id: digcomp.pl,v 1.14 2007/06/19 23:47:00 tbox Exp $
# Compare two files, each with the output from dig, for differences.
# Ignore "unimportant" differences, like ordering of NS lines, TTL's,
# etc...
$file1 = $ARGV[0];
$file2 = $ARGV[1];
$count = 0;
$firstname = "";
$status = 0;
$rcode1 = "none";
$rcode2 = "none";
open(FILE1, $file1) || die("open: $file1: $!\n");
while (<FILE1>) {
chomp;
if (/^;.+status:\s+(\S+).+$/) {
$rcode1 = $1;
}
next if (/^;/);
if (/^(\S+)\s+\S+\s+(\S+)\s+(\S+)\s+(.+)$/) {
$name = $1;
$class = $2;
$type = $3;
$value = $4;
if ($type eq "SOA") {
$firstname = $name if ($firstname eq "");
if ($name eq $firstname) {
$name = "$name$count";
$count++;
}
}
if ($entry{"$name ; $class.$type ; $value"} ne "") {
$line = $entry{"$name ; $class.$type ; $value"};
print("Duplicate entry in $file1:\n> $_\n< $line\n");
} else {
$entry{"$name ; $class.$type ; $value"} = $_;
}
}
}
close(FILE1);
$printed = 0;
open(FILE2, $file2) || die("open: $file2: $!\n");
while (<FILE2>) {
chomp;
if (/^;.+status:\s+(\S+).+$/) {
$rcode2 = $1;
}
next if (/^;/);
if (/^(\S+)\s+\S+\s+(\S+)\s+(\S+)\s+(.+)$/) {
$name = $1;
$class = $2;
$type = $3;
$value = $4;
if (($name eq $firstname) && ($type eq "SOA")) {
$count--;
$name = "$name$count";
}
if ($entry{"$name ; $class.$type ; $value"} ne "") {
$entry{"$name ; $class.$type ; $value"} = "";
} else {
print("Only in $file2 (missing from $file1):\n")
if ($printed == 0);
print("> $_\n");
$printed++;
$status = 1;
}
}
}
close(FILE2);
$printed = 0;
foreach $key (keys(%entry)) {
if ($entry{$key} ne "") {
print("Only in $file1 (missing from $file2):\n")
if ($printed == 0);
print("< $entry{$key}\n");
$status = 1;
$printed++;
}
}
if ($rcode1 ne $rcode2) {
print("< status: $rcode1\n");
print("> status: $rcode2\n");
$status = 1;
}
exit($status);
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