From af7eb1df4ed7ca6650e8dcb16f52e6a8d1b8ba0d Mon Sep 17 00:00:00 2001
From: Andrew <72449774+andrewkydev1@users.noreply.github.com>
Date: Sun, 6 Jun 2021 21:49:48 +0300
Subject: [PATCH] Update README.md

---
 README.md | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 75 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 38a61d9..78c1f2e 100644
--- a/README.md
+++ b/README.md
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-# checkIp
\ No newline at end of file
+# blcheck
+
+A powerful script for testing a domain or an IP against mailing black lists.
+Script will use dig if it is found. If dig is not found script will use host.
+
+
+Features
+--------------------
+
+* More then __100 black lists__ already included!
+* Automatic distinction between __domain or IP__
+* Performs __PTR validation__ (only if domain is supplied, does not work for IP)
+* 3 verbose (-v) levels and a quiet (-q) mode
+* The result of script is the number of servers which blacklisted the domain, so it can be used for any kind of __automated scripts or cronjobs__
+* Informative and pleasant output
+
+
+Requirements
+--------------------
+
+* Any Unix/Linux with POSIX shell.
+* Either dig or host command available.
+
+
+Usage
+--------------------
+
+blcheck [options] <domain\_or\_IP>
+
+Supplied domain must be full qualified domain name.
+If the IP is supplied, the PTR check cannot be executed and will be skipped.
+
+-d dnshost  Use host as DNS server to make lookups
+-l file     Load blacklists from file, separated by space or new line
+-c          Warn if the top level domain of the blacklist has expired
+-v          Verbose mode, can be used multiple times (up to -vvv)
+-q          Quiet modem with absolutely no output (useful for scripts)
+-p          Plain text output (no coloring, no interactive status)
+-h          The help you are just reading
+
+Result of the script is the number of blacklisted entries. So if the supplied
+IP is not blacklisted on any of the servers the result is 0.
+
+
+TODO
+--------------------
+1. Handle domains with multiple DNS entries.
+
+Licence
+--------------------
+MIT License
+
+Copyright (c) 2018 Andrewkydev1
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+
+