2.1.0 release

Update Cargo.lock file to support latest version of Rust (#435 )
Update tui.rs (#396 )
2026-11-08 08:03:06 -10:00 · 2022-04-27 13:30:24 +01:00 · 2022-04-26 08:40:56 +01:00 · 2021-07-03 23:27:06 +01:00 · 2021-03-29 08:17:19 +01:00 · 2021-03-29 08:16:43 +01:00
41 changed files with 2840 additions and 877 deletions
@@ -2,7 +2,7 @@ pkgbase = rustscan-bin
 	pkgdesc = Faster Nmap Scanning with Rust
 	pkgver = 1.1.0
 	pkgrel = 1
-	url = https://github.com/brandonskerritt/rustscan
+	url = https://github.com/rustscan/rustscan
 	arch = x86_64
 	license = MIT
 	depends = rustup
@@ -162,7 +162,9 @@
      "avatar_url": "https://avatars0.githubusercontent.com/u/47574893?v=4",
      "profile": "https://github.com/niklasmohrin",
      "contributions": [
-        "doc"
+        "doc",
+        "code",
+        "bug"
      ]
    },
    {
@@ -182,6 +184,81 @@
      "contributions": [
        "code"
      ]
+    },
+    {
+      "login": "bergabman",
+      "name": "bergabman",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/44554109?v=4",
+      "profile": "https://github.com/bergabman",
+      "contributions": [
+        "code",
+        "bug",
+        "design"
+      ]
+    },
+    {
+      "login": "dmitris",
+      "name": "Dmitry Savintsev",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/31205?v=4",
+      "profile": "https://github.com/dmitris",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "bofh69",
+      "name": "Sebastian Andersson",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/1444315?v=4",
+      "profile": "https://github.com/bofh69",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "mattcorbin",
+      "name": "Matt Corbin",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/6537765?v=4",
+      "profile": "https://github.com/mattcorbin",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "rootsploit",
+      "name": "RootSploit",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/67270834?v=4",
+      "profile": "http://rootsploit.com",
+      "contributions": [
+        "blog"
+      ]
+    },
+    {
+      "login": "eiffel-fl",
+      "name": "eiffel-fl",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/12171754?v=4",
+      "profile": "https://github.com/eiffel-fl",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "u5surf",
+      "name": "Y.Horie",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/14180225?v=4",
+      "profile": "https://github.com/u5surf",
+      "contributions": [
+        "code"
+      ]
+    },
+    {
+      "login": "okrplay",
+      "name": "Oskar",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/32576280?v=4",
+      "profile": "https://github.com/okrplay",
+      "contributions": [
+        "code",
+        "test"
+      ]
    }
  ],
  "contributorsPerLine": 7,
@@ -1,4 +1 @@
 github: bee-san
-patreon: brandonskerritt
-ko_fi: hacker
-custom: ["https://monzo.me/bee", "https://paypal.me/brandonskerritt"]
@@ -13,9 +13,9 @@ jobs:
          profile: minimal
          toolchain: stable
          override: true
-      - uses: actions-rs/cargo@v1
-        with:
-          command: check
+      # - uses: actions-rs/cargo@v1
+        # with:
+          # command: check

  test:
    name: Test Suite
@@ -46,10 +46,3 @@ jobs:
        with:
          command: fmt
          args: --all -- --check
-
-  links:
-        name: markdown-link-check
-        runs-on: ubuntu-latest
-        steps:
-        - uses: actions/checkout@master
-        - uses: gaurav-nelson/github-action-markdown-link-check@v1
@@ -43,3 +43,80 @@ pkg/

 # End of https://www.toptal.com/developers/gitignore/api/rust,archlinuxpackages
 *.deb
+
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+.idea/*
+.idea
+.idea*
@@ -17,6 +17,7 @@ jobs:
 script:
 - cargo build
 - cargo test
+- "ulimit -n 5000; cargo test timelimits:: -- --ignored --test-threads=1 --show-output"
 - cargo fmt -- --check
 after_failure:
 - wget https://raw.githubusercontent.com/DiscordHooks/travis-ci-discord-webhook/master/send.sh
@@ -1,6 +1,6 @@
 [package]
 name = "rustscan"
-version = "1.8.0"
+version = "2.1.0"
 authors = ["Bee <[email protected]>"]
 edition = "2018"
 description = "Faster Nmap Scanning with Rust"
@@ -18,22 +18,30 @@ exclude = [

 [dependencies]
 colored = "2.0.0"
-structopt = "0.3.17"
-async-std = "1.6.3"
+structopt = "0.3.20"
+async-std = "1.7.0"
 futures = "0.3"
-rlimit = "0.4.0"
+rlimit = "0.5.4"
 shell-words = "1.0.0"
 log = "0.4.0"
-env_logger = "0.7.1"
+env_logger = "0.8.2"
 dirs = "3.0.1"
 gcd = "2.0.1"
 rand = "0.7.3"
 colorful = "0.2.1"
 ansi_term = "0.12.1"
-toml = "0.5.6"
-serde = "1.0.115"
-serde_derive = "1.0.115"
-cidr-utils = "0.5.0"
+toml = "0.5.7"
+serde = "1.0.124"
+serde_derive = "1.0.116"
+cidr-utils = "0.5.1"
+itertools = "0.9.0"
+trust-dns-resolver = { version = "0.19.5", features = ["dns-over-rustls"] }
+anyhow = "1.0.40"
+subprocess = "0.2.6"
+text_placeholder = { version = "0.4", features = ["struct_context"] }
+
+[dev-dependencies]
+wait-timeout = "0.2"

 [package.metadata.deb]
 depends = "$auto, nmap"
@@ -1,8 +1,11 @@
 FROM rust:alpine as builder
+LABEL maintainer="RustScan <https://github.com/RustScan>"
 RUN apk add --no-cache build-base

+# Encourage some layer caching here rather then copying entire directory that includes docs to builder container ~CMN
 WORKDIR /usr/src/rustscan
-COPY . .
+COPY Cargo.toml Cargo.lock ./
+COPY src/ src/
 RUN cargo install --path .

 FROM alpine:3.12
@@ -10,12 +10,12 @@ build:
 build-linux:
 	@echo 'Building for Linux... 🐧'
 	cross build --release --target=x86_64-unknown-linux-musl
-	mkdir -p target/release-archives && tar -czf target/release-archives/rustscan-linux.tar.gz target/x86_64-unknown-linux-musl/release/rustscan 
+	mkdir -p target/release-archives && tar -C target/x86_64-unknown-linux-musl/release -czf target/release-archives/rustscan-linux.tar.gz rustscan

 build-mac:
 	@echo 'Building for MacOS... 🍏'
 	cross build --release --target=x86_64-apple-darwin
-	mkdir -p target/release-archives && tar -czf target/release-archives/rustscan-mac.tar.gz target/x86_64-apple-darwin/release/rustscan
+	mkdir -p target/release-archives && tar -C target/x86_64-apple-darwin/release -czf target/release-archives/rustscan-mac.tar.gz rustscan

 shasum:
 	shasum -a 256 target/release-archives/rustscan-*.tar.gz
@@ -1,116 +1,145 @@
 <p align="center">
 ➡️
-<a href="https://discord.gg/GFrQsGy">Discord</a> |
- <a href="https://github.com/RustScan/RustScan#-full-installation-guide">Installation Guide</a> |
+<a href="http://discord.skerritt.blog">Discord</a> |
+ <a href="https://github.com/RustScan/RustScan/wiki/Installation-Guide">Installation Guide</a> |
 <a href="https://github.com/RustScan/RustScan#-usage">Usage Guide</a>
 ⬅️
 <br>
 <img src="pictures/rustscan.png" height=400px width=400px>
 </p>
 <p align="center">
-<u><b> 👽 The Modern Day Port Scanner 👽
+<u><b> The Modern Port Scanner. </b></u><br><b>Fast, smart, effective.</b> 
 </p>
 <p align="center">
 <img alt="AUR version" src="https://img.shields.io/aur/version/rustscan">
 <img src="https://img.shields.io/badge/Built%20with-Rust-Purple">
 <img alt="GitHub All Releases" src="https://img.shields.io/github/downloads/rustscan/rustscan/total?label=GitHub%20Downloads">
 <img alt="Crates.io" src="https://img.shields.io/crates/d/rustscan?label=Cargo%20Downloads">
-<img alt="Discord" src="https://img.shields.io/discord/736614461313515576">
+<img alt="Discord" src="https://img.shields.io/discord/754001738184392704">
 <img alt="Actions" src="https://github.com/RustScan/RustScan/workflows/Continuous%20integration/badge.svg?branch=master">
 </p>
 <hr>

-| <p align="center"><a href="https://hub.docker.com/r/cmnatic/rustscan">🐋 Docker (Recommended) </a></p>            | <p align="center"><a href="https://github.com/RustScan/RustScan/releases">👩‍💻 Kali / Debian </p>                 | <p align="center"><a href="https://aur.archlinux.org/packages/rustscan/">🏗️ Arch </a></p>                       | <p align="center"><a href="https://crates.io/crates/rustscan">🔧 Cargo (Universal) </a></p>                     |
+| <p align="center"><a href="https://hub.docker.com/r/cmnatic/rustscan">🐋 Docker (Recommended) </a></p>            | <p align="center"><a href="https://github.com/RustScan/RustScan/releases">👩‍💻 Kali / Debian </p>                 | <p align="center"><a href="https://aur.archlinux.org/packages/rustscan/">🏗️ Arch </a></p>                       | <p align="center"><a href="https://crates.io/crates/rustscan">🔧 Homebrew </a></p>                     |
 | ----------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------- |
-| <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/docker.png?raw=true" /></p> | <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/kali.png?raw=true" /></p> | <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/arch.png?raw=true" /></p> | <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/rust.png?raw=true" /></p> |
-| `docker pull rustscan/rustscan:alpine` <p>[Usage](https://github.com/RustScan/RustScan#docker-whale)              | [Read the install guide](https://github.com/Rustscan/RustScan/blob/master/README.md#%EF%B8%8F-debian--kali)     | `yay -S rustscan`                                                                                               | `cargo install rustscan`                                                                                        |
+| <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/docker.png?raw=true" /></p> | <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/kali.png?raw=true" /></p> | <p align="center"><img src="https://github.com/RustScan/RustScan/blob/master/pictures/arch.png?raw=true" /></p> | <p align="center"><img src="https://raw.githubusercontent.com/RustScan/RustScan/master/pictures/apple.png" /></p> |
+| `docker pull rustscan/rustscan:2.0.0` <p>[Usage](https://github.com/RustScan/RustScan#docker-whale)              | [Read the install guide](https://github.com/Rustscan/RustScan/blob/master/README.md#%EF%B8%8F-debian--kali)     | `yay -S rustscan`                                                                                               | `brew install rustscan`                                                                                        |

 <hr>

 # 🤔 What is this?

-RustScan is the port scanner for the modern world. Built with speed & you in mind.
-
-![pictures](pictures/with_rustscan.gif)
+![fast](pictures/fast.gif)

+The Modern Port Scanner. **Find ports quickly (3 seconds at its fastest)**. Run scripts through our scripting engine (Python, Lua, Shell supported).

 # ✨ Features

- Scans all 65k ports in **3 seconds** (max speed) **or as slow as you'd like**
- Saves you time by automatically piping it into Nmap. No more manual copying and pasting!
- Adaptive Learning System. The scanner learns how _you_ use it and improves itself over time.
- Intuitive Scripting Engine support. Write scripts in Python!
- IPv6, CIDR, top ports, multiple IP scanning, host resolution, and more!
+- Scans all 65k ports in **3 seconds**.
+- Full scripting engine support. Automatically pipe results into Nmap, or use our scripts (or write your own) to do whatever you want.
+- Adaptive learning. RustScan improves the more you use it. No bloated machine learning here, just basic maths.
+- The usuals you would expect. IPv6, CIDR, file input and more.
+- Automatically pipes ports into Nmap.

 ## ‼️ Important Links

 | Installation Guide                                                                     | Documentation                                            | Discord                                  |
 | -------------------------------------------------------------------------------------- | -------------------------------------------------------- | ---------------------------------------- |
-| 📖 [Installation Guide](https://github.com/RustScan/RustScan#-full-installation-guide) | 📚 [Documentation](https://rustscan.github.io/RustScan/) | 🦜 [Discord](https://discord.gg/GFrQsGy) |
+| 📖 [Installation Guide](https://github.com/RustScan/RustScan#-full-installation-guide) | 📚 [Documentation](https://rustscan.github.io/RustScan/) | 🦜 [Discord](http://discord.skerritt.blog) |

+## 🙋 Table of Contents
+
+- 📖 [Installation Guide](https://github.com/RustScan/RustScan/wiki/Installation-Guide)
+- 🐋 [Docker Usage](https://github.com/RustScan/RustScan/wiki/Installation-Guide)
+- 🦜 [Discord](http://discord.skerritt.blog)
+- 🤸 [Usage](https://github.com/RustScan/RustScan/wiki/Usage)
+- 🎪 [Community](https://github.com/RustScan/RustScan#-community)

 # 🔭 Why RustScan?

-RustScan is a port scanner built for the modern day world. Initially created to aid in CTFs, but now expanded to real world usage. 
+RustScan is a modern take on the port scanner. Sleek & fast. All while providing extensive extendability to you.

-One of RustScan's most popular features is the Nmap extension. Quickly scan ports with RustScan, run Nmap on the found ports.
+Not to mention RustScan uses Adaptive Learning to improve itself over time, making it the best port scanner for **you**.

-**RustScan running in 8 seconds and finding all open ports out of 65k.**
+## 🧋 Speed

-![gif](https://github.com/RustScan/RustScan/blob/master/pictures/8seconds.gif?raw=true)
+![fast](pictures/fast.gif)

-# Packages
+Speed is guaranteed via RustScan. However, if you want to run a slow scan due to stealth that is possible too.
+
+Firstly, let's talk code.
+
+We have tests that check to see if RustScan is significantly slower than the previous version. If it is, the continuous integration fails and we can't commit code to master unless we make it faster.
+
+[HyperFine](https://github.com/sharkdp/hyperfine) is used to monitor RustScan's performance over time to answer the question "Are we getting faster? Are we getting slower?".
+
+Every pull request is reviewed by 1 person, but more often than not 2 people review it. We test it manually and make sure the code doesn't affect performance negatively.
+
+[Read more here](https://github.com/RustScan/RustScan/wiki/Increasing-Speed-&-Accuracy).
+
+## ⚙️ Extensible 
+
+![scripts](pictures/scripts.gif)
+
+_RustScan piping results into the custom Python script_
+
+RustScan has a new scripting engine which allows anyone to write scripts in most languages. Python, Lua, Shell are all supported.
+
+Want to take your found ports and pipe them into Nmap for further analysis? That's possible. Want to run `smb-enum` if SMB is found open? Possible.
+
+The possibilities are endless -- and you can write scripts in whatever language you feel comfortable with.
+
+[Read more here](https://github.com/RustScan/RustScan/wiki/RustScan-Scripting-Engine).
+
+## 🌊 Adaptive
+
+![adaptive](pictures/adaptive.gif)
+
+_RustScan automatically fine-tuning itself to match the host OS_.
+
+RustScan has a cool set of features called "Adaptive Learning". These features "learn" about the environment you are scanning and how _you_ use RustScan to **improve itself over time**.
+
+This is an umbrella term we use for any feature that fits this criteria. The list is constantly changing, so [check out our wiki for more information](https://github.com/RustScan/RustScan/wiki/Adaptive-Learning).
+
+## 👩‍🦯 Accessible
+
+![fast](pictures/accessible.gif)
+
+RustScan is one of the first penetration testing tools that aims to be entirely accessible. 
+
+[Most penetration testing tools are not accessible](https://bees.substack.com/p/making-hacking-accessible), which negatively affects the whole industry.
+
+RustScan has continuous integration testing that aims to make sure it is accessible, and we are constantly working on ways to improve our accessibility and make sure _everyone_ can use RustScan.
+
+# 📖 Full Installation Guide
+
+You can find our guide [here](https://github.com/RustScan/RustScan/wiki/Installation-Guide).
+
+## 🦊 Community Distributions
+
+Here are all of RustScan's community distributions.
+
+If you maintain a community distribution and want it listed here, leave an issue / pull request / Discord message or however you want to let us know.
+
+- [OpenSuse](https://software.opensuse.org/package/rustscan?search_term=rustscan)
+- [Fedora/CentOS](https://copr.fedorainfracloud.org/coprs/atim/rustscan/)

 [![Packaging status](https://repology.org/badge/vertical-allrepos/rustscan.svg)](https://repology.org/project/rustscan/versions)

+# 🤸 Usage
+
+We have 2 usage guides. [Basic Usage](https://github.com/RustScan/RustScan/wiki/Usage) and [Things you may want to do](https://github.com/RustScan/RustScan/wiki/Things-you-may-want-to-do-with-RustScan-but-don't-understand-how).
+
+We also have documentation about our config file [here](https://github.com/RustScan/RustScan/wiki/Config-File).

 # 🎪 Community

-Howdy Space Cow-Person 🤠🌌
-
-RustScan is always looking for contributors. Whether that's spelling mistakes or major changes, your help is **wanted** and welcomed here.
-
-Before contributing, read our [code of conduct](https://github.com/RustScan/RustScan/blob/master/CODE_OF_CONDUCT.md).
-
-TL;DR if you abuse members of our community you will be **perma-banned** 🤗
-
-RustScan has 2 major labels for GitHub issues you should look at:
-
- Good First issue
-  These are issues for newcomers to open source!
-  [https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
- Help wanted
-  These are issues that aren't really for newcomers, but we could still do wiht help!
-  [https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22)
-
-If you want to, solve the issue or comment on the issue for help.
-
-The flow for contributing to open source software is:
-
- Fork the repo
- Make changes
- Pull request to the repo
-
-And then comment on the issue that you've done.
-
-RustScan also has some `// TODO`'s in the codebase, which are meant more for the core team but we wouldn't say no to help with these issues.
-
-If you have any feature suggestions or bugs, leave a GitHub issue. We welcome any and all support :D
-
-We communicate over Discord. [Click here](https://discord.gg/GFrQsGy) to join our Discord community!
-
-## Rewarding you
-
-I cannot pay you :-( But, I can place your GitHub profile on the README under `#Contributors` as a thank you! :)
-
-Please read the [contributing.md file](contributing.md)
+[Read this to learn how to contribute](https://github.com/RustScan/RustScan/wiki/Contributing).

 ## Contributors ✨

 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-
-[![All Contributors](https://img.shields.io/badge/all_contributors-18-orange.svg?style=flat-square)](#contributors-)
-
+[![All Contributors](https://img.shields.io/badge/all_contributors-26-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->

 Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
@@ -139,15 +168,24 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
  </tr>
  <tr>
    <td align="center"><a href="https://swag.lgbt"><img src="https://avatars2.githubusercontent.com/u/25358963?v=4" width="100px;" alt=""/><br /><sub><b>Cass</b></sub></a><br /><a href="#platform-caass" title="Packaging/porting to new platform">📦</a> <a href="https://github.com/RustScan/RustScan/commits?author=caass" title="Code">💻</a> <a href="https://github.com/RustScan/RustScan/issues?q=author%3Acaass" title="Bug reports">🐛</a></td>
-    <td align="center"><a href="https://github.com/niklasmohrin"><img src="https://avatars0.githubusercontent.com/u/47574893?v=4" width="100px;" alt=""/><br /><sub><b>Niklas Mohrin</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=niklasmohrin" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/niklasmohrin"><img src="https://avatars0.githubusercontent.com/u/47574893?v=4" width="100px;" alt=""/><br /><sub><b>Niklas Mohrin</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=niklasmohrin" title="Documentation">📖</a> <a href="https://github.com/RustScan/RustScan/commits?author=niklasmohrin" title="Code">💻</a> <a href="https://github.com/RustScan/RustScan/issues?q=author%3Aniklasmohrin" title="Bug reports">🐛</a></td>
    <td align="center"><a href="https://liberapay.com/Artem4/"><img src="https://avatars0.githubusercontent.com/u/5614476?v=4" width="100px;" alt=""/><br /><sub><b>Artem Polishchuk</b></sub></a><br /><a href="#platform-tim77" title="Packaging/porting to new platform">📦</a></td>
    <td align="center"><a href="https://github.com/buermarc"><img src="https://avatars2.githubusercontent.com/u/44375277?v=4" width="100px;" alt=""/><br /><sub><b>buermarc</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=buermarc" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/bergabman"><img src="https://avatars1.githubusercontent.com/u/44554109?v=4" width="100px;" alt=""/><br /><sub><b>bergabman</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=bergabman" title="Code">💻</a> <a href="https://github.com/RustScan/RustScan/issues?q=author%3Abergabman" title="Bug reports">🐛</a> <a href="#design-bergabman" title="Design">🎨</a></td>
+    <td align="center"><a href="https://github.com/dmitris"><img src="https://avatars0.githubusercontent.com/u/31205?v=4" width="100px;" alt=""/><br /><sub><b>Dmitry Savintsev</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=dmitris" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/bofh69"><img src="https://avatars3.githubusercontent.com/u/1444315?v=4" width="100px;" alt=""/><br /><sub><b>Sebastian Andersson</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=bofh69" title="Code">💻</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/mattcorbin"><img src="https://avatars3.githubusercontent.com/u/6537765?v=4" width="100px;" alt=""/><br /><sub><b>Matt Corbin</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=mattcorbin" title="Code">💻</a></td>
+    <td align="center"><a href="http://rootsploit.com"><img src="https://avatars2.githubusercontent.com/u/67270834?v=4" width="100px;" alt=""/><br /><sub><b>RootSploit</b></sub></a><br /><a href="#blog-rootsploit" title="Blogposts">📝</a></td>
+    <td align="center"><a href="https://github.com/eiffel-fl"><img src="https://avatars2.githubusercontent.com/u/12171754?v=4" width="100px;" alt=""/><br /><sub><b>eiffel-fl</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=eiffel-fl" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/u5surf"><img src="https://avatars1.githubusercontent.com/u/14180225?v=4" width="100px;" alt=""/><br /><sub><b>Y.Horie</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=u5surf" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/okrplay"><img src="https://avatars3.githubusercontent.com/u/32576280?v=4" width="100px;" alt=""/><br /><sub><b>Oskar</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=okrplay" title="Code">💻</a> <a href="https://github.com/RustScan/RustScan/commits?author=okrplay" title="Tests">⚠️</a></td>
  </tr>
 </table>

 <!-- markdownlint-enable -->
 <!-- prettier-ignore-end -->
-
 <!-- ALL-CONTRIBUTORS-LIST:END -->

 This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
@@ -0,0 +1,5 @@
+FROM rust
+# Install nmap first.
+RUN apt-get update -qy && apt-get install -qy nmap
+# Then install rustfmt and clippy for cargo.
+RUN rustup component add rustfmt clippy
@@ -7,19 +7,21 @@ Before contributing, read our [code of conduct](https://github.com/RustScan/Rust
 TL;DR if you abuse members of our community you will be **perma-banned** with no chance to get unbanned. No warnings either. 🤗

 RustScan has 2 major labels for GitHub issues you should look at:
-* Good First issue
-These are issues for newcomers to open source!
-[https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
-* Help wanted
-These are issues that aren't really for newcomers, but we could still do wiht help!
-[https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22)
+
+- Good First issue
+  These are issues for newcomers to open source!
+  [https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22)
+- Help wanted
+  These are issues that aren't really for newcomers, but we could still do with help!
+  [https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22](https://github.com/RustScan/RustScan/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3A%22help+wanted%22)

 If you want to, solve the issue or comment on the issue for help.

-The [flow for contributing](https://guides.github.com/introduction/flow/) to open source software is:
-* Fork the repo
-* Make changes
-* Pull request to the repo
+The flow for contributing to open source software is:
+
+- Fork the repo
+- Make changes
+- Pull request to the repo

 And then comment on the issue that you've done.

@@ -28,4 +30,40 @@ RustScan also has some `// TODO`'s in the codebase, which are meant more for the
 If you have any feature suggestions or bugs, leave a GitHub issue. We welcome any and all support :D

 ## Rewarding you
+
 I cannot pay you :-( But, I can place your GitHub profile on the README under `#Contributors` as a thank you! :)
+
+## Contributing development environment
+
+To ease contribution to RustScan, you can use the `contributing.Dockerfile` to create a Docker image ready to build and play with RustScan.
+To build it you just need to run:
+
+```bash
+you@home:~/RustScan$ docker build -t rustscan_contributing -f contributing.Dockerfile
+```
+
+Then you need to run the container with a volume so it can access, _with read and write permissions_, to RustScan files:
+
+```bash
+you@home:~/RustScan$ docker run -ti --rm -v "$PWD":/rustscan -w /rustscan rustscan_contributing bash
+```
+
+You can now modify RustScan files with your favorite editor, once you want to compile and test your modifications, type the following in the container prompt:
+
+```bash
+root@container:/rustscan# cargo build
+```
+
+You are now ready to use RustScan:
+
+```bash
+root@container:/rustscan# cargo run -- -b 2000 -t 5000 -a 127.0.0.1
+```
+
+You can also format, lint with `clippy` and test the code with the following commands:
+
+```bash
+root@container:/rustscan# cargo fmt
+root@container:/rustscan# cargo clippy
+root@container:/rustscan# cargo test
+```
@@ -0,0 +1,23 @@
+#!/usr/bin/perl
+#tags = ["core_approved", "example",]
+#developer = [ "example", "https://example.org" ]
+#ports_separator = ","
+#call_format = "perl {{script}} {{ip}} {{port}}"
+
+# Sriptfile parser stops at the first blank line with parsing.
+# This script will run itself as an argument with the system installed perl interpreter, ports will be concatenated with "," .
+# Unused field: trigger_port = "80"
+# get total arg passed to this script
+my $total = $#ARGV + 1;
+my $counter = 1;
+ 
+# get script name
+my $scriptname = $0;
+ 
+print "Total args passed to $scriptname : $total\n";
+ 
+# Use loop to print all args stored in an array called @ARGV
+foreach my $a(@ARGV) {
+	print "Arg # $counter : $a\n";
+	$counter++;
+}
@@ -0,0 +1,13 @@
+#!/usr/bin/python3
+#tags = ["core_approved", "example",]
+#developer = [ "example", "https://example.org" ]
+#trigger_port = "80"
+#call_format = "python3 {{script}} {{ip}} {{port}}"
+
+# Sriptfile parser stops at the first blank line with parsing.
+# This script will run itself as an argument with the system installed python interpreter, only scanning port 80.
+# Unused filed: ports_separator = ","
+
+import sys
+
+print('Python script ran with arguments', str(sys.argv))
@@ -0,0 +1,12 @@
+#!/bin/bash 
+#tags = ["core_approved", "example",]
+#developer = [ "example", "https://example.org" ]
+#ports_separator = ","
+#call_format = "bash {{script}} {{ip}} {{port}}"
+
+# Sriptfile parser stops at the first blank line with parsing.
+# This script will run itself as an argument with the system installed bash interpreter, scanning all ports concatenated with "," .
+# Unused filed: trigger_port = "80"
+
+# print all arguments passed to the script
+echo $@
@@ -0,0 +1,9 @@
+#!intentional_blank_line
+#tags = ["core_approved", "example"]
+#developer = [ "example", "https://example.org" ]
+#ports_separator = ","
+#call_format = "nmap -vvv -p {{port}} {{ip}}"
+
+# Scriptfile parser stops at the first blank line with parsing.
+# This script will run the system installed nmap, ports will be concatenated with "," .
+# Unused field: trigger_port = "80"
@@ -0,0 +1,7 @@
+#!intentional_blank_line
+#tags = "core_approved"
+#developer = [ "example", "https://example.org" ]
+#ports_separator = ","
+#call_format = "nmap -vvv -p {{port}} {{ip}}"
+
+# tags has to be an array, thus this file won't be parsed
@@ -0,0 +1,6 @@
+127.0.0.1
+google.com
+example.com
+66666666666666.666666666666666666.66666666666666666.6666666666
+....
+e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855.radiatorFixtures
@@ -0,0 +1,42 @@
+# https://github.com/minimaxir/big-list-of-naughty-strings
+
+
+؀؁؂؃؄؅؜۝܏᠎‌‍‎‏‪‫‬‭‮⁠⁡⁢⁣⁤⁦⁧⁨⁩⁪⁫⁬⁭⁮⁯￹￺￻𑂽𛲠𛲡𛲢𛲣𝅳𝅴𝅵𝅶𝅷𝅸𝅹𝅺󠀁󠀠󠀡󠀢󠀣󠀤󠀥󠀦󠀧󠀨󠀩󠀪󠀫󠀬󠀭󠀮󠀯󠀰󠀱󠀲󠀳󠀴󠀵󠀶󠀷󠀸󠀹󠀺󠀻󠀼󠀽󠀾󠀿󠁀󠁁󠁂󠁃󠁄󠁅󠁆󠁇󠁈󠁉󠁊󠁋󠁌󠁍󠁎󠁏󠁐󠁑󠁒󠁓󠁔󠁕󠁖󠁗󠁘󠁙󠁚󠁛󠁜󠁝󠁞󠁟󠁠󠁡󠁢󠁣󠁤󠁥󠁦󠁧󠁨󠁩󠁪󠁫󠁬󠁭󠁮󠁯󠁰󠁱󠁲󠁳󠁴󠁵󠁶󠁷󠁸󠁹󠁺󠁻󠁼󠁽󠁾󠁿
+
+Ω≈ç√∫˜µ≤≥÷
+åß∂ƒ©˙∆˚¬…æ
+œ∑´®†¥¨ˆøπ“‘
+¡™£¢∞§¶•ªº–≠
+¸˛Ç◊ı˜Â¯˘¿
+ÅÍÎÏ˝ÓÔÒÚÆ☃
+Œ„´‰ˇÁ¨ˆØ∏”’
+`⁄€‹›ﬁﬂ‡°·‚—±
+⅛⅜⅝⅞
+ЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя
+٠١٢٣٤٥٦٧٨٩
+
+
+
+⁰⁴⁵
+₀₁₂
+⁰⁴⁵₀₁₂
+ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็
+
+田中さんにあげて下さい
+パーティーへ行かないか
+和製漢語
+部落格
+사회과학원 어학연구소
+찦차를 타고 온 펲시맨과 쑛다리 똠방각하
+社會科學院語學研究所
+울란바토르
+𠜎𠜱𠝹𠱓𠱸𠲖𠳏
+𝐓𝐡𝐞 𝐪𝐮𝐢𝐜𝐤 𝐛𝐫𝐨𝐰𝐧 𝐟𝐨𝐱 𝐣𝐮𝐦𝐩𝐬 𝐨𝐯𝐞𝐫 𝐭𝐡𝐞 𝐥𝐚𝐳𝐲 𝐝𝐨𝐠
+𝕿𝖍𝖊 𝖖𝖚𝖎𝖈𝖐 𝖇𝖗𝖔𝖜𝖓 𝖋𝖔𝖝 𝖏𝖚𝖒𝖕𝖘 𝖔𝖛𝖊𝖗 𝖙𝖍𝖊 𝖑𝖆𝖟𝖞 𝖉𝖔𝖌
+𝑻𝒉𝒆 𝒒𝒖𝒊𝒄𝒌 𝒃𝒓𝒐𝒘𝒏 𝒇𝒐𝒙 𝒋𝒖𝒎𝒑𝒔 𝒐𝒗𝒆𝒓 𝒕𝒉𝒆 𝒍𝒂𝒛𝒚 𝒅𝒐𝒈
+𝓣𝓱𝓮 𝓺𝓾𝓲𝓬𝓴 𝓫𝓻𝓸𝔀𝓷 𝓯𝓸𝔁 𝓳𝓾𝓶𝓹𝓼 𝓸𝓿𝓮𝓻 𝓽𝓱𝓮 𝓵𝓪𝔃𝔂 𝓭𝓸𝓰
+𝕋𝕙𝕖 𝕢𝕦𝕚𝕔𝕜 𝕓𝕣𝕠𝕨𝕟 𝕗𝕠𝕩 𝕛𝕦𝕞𝕡𝕤 𝕠𝕧𝕖𝕣 𝕥𝕙𝕖 𝕝𝕒𝕫𝕪 𝕕𝕠𝕘
+𝚃𝚑𝚎 𝚚𝚞𝚒𝚌𝚔 𝚋𝚛𝚘𝚠𝚗 𝚏𝚘𝚡 𝚓𝚞𝚖𝚙𝚜 𝚘𝚟𝚎𝚛 𝚝𝚑𝚎 𝚕𝚊𝚣𝚢 𝚍𝚘𝚐
+⒯⒣⒠ ⒬⒰⒤⒞⒦ ⒝⒭⒪⒲⒩ ⒡⒪⒳ ⒥⒰⒨⒫⒮ ⒪⒱⒠⒭ ⒯⒣⒠ ⒧⒜⒵⒴ ⒟⒪⒢
+
+ثم نفس سقطت وبالتحديد،, جزيرتي باستخدام أن دنو. إذ هنا؟ الستار وتنصيب كان. أهّل ايطاليا، بريطانيا-فرنسا قد أخذ. سليمان، إتفاقية بين ما, يذكر الحدود أي بعد, معاملة بولندا، الإطلاق عل إيو.
@@ -0,0 +1,14 @@
+# Test/Example ScriptConfig file
+
+# Tags to filter on scripts. Only scripts containing all these tags will run.
+tags = ["core_approved", "example"]
+
+# If it's present then only those scripts will run which has a tag ports = "80". Not yet implemented.
+#
+# ex.:
+# ports = ["80"]
+# ports = ["80","81","8080"]
+ports = ["80"]
+
+# Only this developer(s) scripts to run. Not yet implemented.
+developer = ["example"]
@@ -0,0 +1,131 @@
+# The configurations that used for the recording, feel free to edit them
+config:
+
+  # Specify a command to be executed
+  # like `/bin/bash -l`, `ls`, or any other commands
+  # the default is bash for Linux
+  # or powershell.exe for Windows
+  command: zsh
+  
+  # Specify the current working directory path
+  # the default is the current working directory path
+  cwd: /home/bee/Documents/RustScan
+  
+  # Export additional ENV variables
+  env:
+    recording: true
+  
+  # Explicitly set the number of columns
+  # or use `auto` to take the current
+  # number of columns of your shell
+  cols: 107
+  
+  # Explicitly set the number of rows
+  # or use `auto` to take the current
+  # number of rows of your shell
+  rows: 43
+  
+  # Amount of times to repeat GIF
+  # If value is -1, play once
+  # If value is 0, loop indefinitely
+  # If value is a positive number, loop n times
+  repeat: 0
+  
+  # Quality
+  # 1 - 100
+  quality: 100
+  
+  # Delay between frames in ms
+  # If the value is `auto` use the actual recording delays
+  frameDelay: auto
+  
+  # Maximum delay between frames in ms
+  # Ignored if the `frameDelay` isn't set to `auto`
+  # Set to `auto` to prevent limiting the max idle time
+  maxIdleTime: 2000
+  
+  # The surrounding frame box
+  # The `type` can be null, window, floating, or solid`
+  # To hide the title use the value null
+  # Don't forget to add a backgroundColor style with a null as type
+  frameBox:
+    type: floating
+    title: Terminalizer
+    style:
+      border: 0px black solid
+      # boxShadow: none
+      # margin: 0px
+  
+  # Add a watermark image to the rendered gif
+  # You need to specify an absolute path for
+  # the image on your machine or a URL, and you can also
+  # add your own CSS styles
+  watermark:
+    imagePath: null
+    style:
+      position: absolute
+      right: 15px
+      bottom: 15px
+      width: 100px
+      opacity: 0.9
+  
+  # Cursor style can be one of
+  # `block`, `underline`, or `bar`
+  cursorStyle: block
+  
+  # Font family
+  # You can use any font that is installed on your machine
+  # in CSS-like syntax
+  fontFamily: "Monaco, Lucida Console, Ubuntu Mono, Monospace"
+  
+  # The size of the font
+  fontSize: 12
+  
+  # The height of lines
+  lineHeight: 1
+  
+  # The spacing between letters
+  letterSpacing: 0
+  
+  # Theme
+  theme:
+    background: "transparent"
+    foreground: "#afafaf"
+    cursor: "#c7c7c7"
+    black: "#232628"
+    red: "#fc4384"
+    green: "#b3e33b"
+    yellow: "#ffa727"
+    blue: "#75dff2"
+    magenta: "#ae89fe"
+    cyan: "#708387"
+    white: "#d5d5d0"
+    brightBlack: "#626566"
+    brightRed: "#ff7fac"
+    brightGreen: "#c8ed71"
+    brightYellow: "#ebdf86"
+    brightBlue: "#75dff2"
+    brightMagenta: "#ae89fe"
+    brightCyan: "#b1c6ca"
+    brightWhite: "#f9f9f4"
+  
+# Records, feel free to edit them
+records:
+  - delay: 436
+    content: "\e[1m\e[7m%\e[27m\e[1m\e[0m                                                                                                          \r \r\e]2;bee@beehive:~/Documents/RustScan\a\e]1;..ents/RustScan\a"
+  - delay: 162
+    content: "\r\e[0m\e[27m\e[24m\e[J\r\n\e[1m\e[0m\e[1m\e[36mRustScan\e[0m\e[36m\e[39m\e[1m \e[0m\e[1mon \e[0m\e[1m\e[37m\e[1m\e[37m\e[0m\e[37m\e[1m\e[37m\e[35m master\e[0m\e[35m\e[39m\e[1m\e[0m\e[1m\e[0m\e[1m\e[31m [?]\e[0m\e[31m\e[39m\e[1m\e[0m\e[0m\e[39m\e[1m \e[0m\e[1mis \e[0m\e[1m\e[31m\U0001F4E6 vrustscan:1.10.0\e[0m\e[31m\e[39m\e[1m \e[0m\e[1mvia \e[0m\e[1m\e[31m\U0001D5E5 v1.46.0\e[0m\e[31m\e[39m\e[1m \e[0m\r\n\e[1m\e[0m\e[1m\e[32m➜ \e[0m\e[32m\e[39m\e[1m\e[0m\e[K\e[?1h\e=\e[?2004h"
+  - delay: 471
+    content: "r\brustscan 127.0.0.1 --accessible --no-nmap --ulimit 5000\e[55D\e[7mr\e[7mu\e[7ms\e[7mt\e[7ms\e[7mc\e[7ma\e[7mn\e[7m \e[7m1\e[7m2\e[7m7\e[7m.\e[7m0\e[7m.\e[7m0\e[7m.\e[7m1\e[7m \e[7m-\e[7m-\e[7ma\e[7mc\e[7mc\e[7me\e[7ms\e[7ms\e[7mi\e[7mb\e[7ml\e[7me\e[7m \e[7m-\e[7m-\e[7mn\e[7mo\e[7m-\e[7mn\e[7mm\e[7ma\e[7mp\e[7m \e[7m-\e[7m-\e[7mu\e[7ml\e[7mi\e[7mm\e[7mi\e[7mt\e[7m \e[7m5\e[7m0\e[7m0\e[7m0\e[27m"
+  - delay: 269
+    content: "\e[55D\e[27mr\e[27mu\e[27ms\e[27mt\e[27ms\e[27mc\e[27ma\e[27mn\e[27m \e[27m1\e[27m2\e[27m7\e[27m.\e[27m0\e[27m.\e[27m0\e[27m.\e[27m1\e[27m \e[27m-\e[27m-\e[27ma\e[27mc\e[27mc\e[27me\e[27ms\e[27ms\e[27mi\e[27mb\e[27ml\e[27me\e[27m \e[27m-\e[27m-\e[27mn\e[27mo\e[27m-\e[27mn\e[27mm\e[27ma\e[27mp\e[27m \e[27m-\e[27m-\e[27mu\e[27ml\e[27mi\e[27mm\e[27mi\e[27mt\e[27m \e[27m5\e[27m0\e[27m0\e[27m0\e[?1l\e>\e[?2004l\r\r\n\e]2;rustscan 127.0.0.1 --accessible --no-nmap --ulimit 5000\a\e]1;rustscan\aAutomatically increasing ulimit value to 5000.\r\n"
+  - delay: 1536
+    content: "Open 127.0.0.1:38602\r\n"
+  - delay: 395
+    content: "Open 127.0.0.1:50078\r\n"
+  - delay: 450
+    content: "127.0.0.1 -> [38602,50078]\r\n\e[1m\e[7m%\e[27m\e[1m\e[0m                                                                                                          \r \r\e]2;bee@beehive:~/Documents/RustScan\a\e]1;..ents/RustScan\a"
+  - delay: 143
+    content: "\r\e[0m\e[27m\e[24m\e[J\r\n\e[1m\e[0m\e[1m\e[36mRustScan\e[0m\e[36m\e[39m\e[1m \e[0m\e[1mon \e[0m\e[1m\e[37m\e[1m\e[37m\e[0m\e[37m\e[1m\e[37m\e[35m master\e[0m\e[35m\e[39m\e[1m\e[0m\e[1m\e[0m\e[1m\e[31m [?]\e[0m\e[31m\e[39m\e[1m\e[0m\e[0m\e[39m\e[1m \e[0m\e[1mis \e[0m\e[1m\e[31m\U0001F4E6 vrustscan:1.10.0\e[0m\e[31m\e[39m\e[1m \e[0m\e[1mvia \e[0m\e[1m\e[31m\U0001D5E5 v1.46.0\e[0m\e[31m\e[39m\e[1m \e[0m\e[1mtook \e[0m\e[1m\e[33m2s\e[0m\e[33m\e[39m\e[1m \e[0m\r\n\e[1m\e[0m\e[1m\e[32m➜ \e[0m\e[32m\e[39m\e[1m\e[0m\e[K\e[?1h\e=\e[?2004h"
+  - delay: 563
+    content: "\e[?2004l\r\r\n"
@@ -0,0 +1,89 @@
+//! # Usage
+//! ```
+//! // Initiate Benchmark vector
+//! let mut bm = Benchmark::init();
+//! // Start named timer with name
+//! let mut example_bench = NamedTimer::start("Example Bench");
+//! // Stop named timer
+//! example_bench.stop();
+//! // Add named timer to Benchmarks
+//! bm.push(example_bench);
+//! // Print Benchmark Summary
+//! info!({}, bm.summary());
+//! ```
+use std::time::Instant;
+
+/// A Benchmark struct to hold NamedTimers with name, start and end Instants,
+#[derive(Debug)]
+pub struct Benchmark {
+    named_timers: Vec<NamedTimer>,
+}
+
+impl Benchmark {
+    pub fn init() -> Self {
+        Self {
+            named_timers: Vec::new(),
+        }
+    }
+    pub fn push(&mut self, timer: NamedTimer) {
+        self.named_timers.push(timer);
+    }
+
+    /// Summary of the benchmarks will destruct the vector,
+    /// formats every element the same way and return
+    /// a single String with all the available information
+    /// for easy printing
+    pub fn summary(&self) -> String {
+        let mut summary = String::from("\nRustScan Benchmark Summary");
+
+        for timer in &self.named_timers {
+            if timer.start.is_some() && timer.end.is_some() {
+                let runtime_secs = timer
+                    .end
+                    .unwrap()
+                    .saturating_duration_since(timer.start.unwrap())
+                    .as_secs_f32();
+                summary.push_str(&format!("\n{0: <10} | {1: <10}s", timer.name, runtime_secs))
+            }
+        }
+        summary
+    }
+}
+
+/// The purpose of NamedTimer is to hold a name,
+/// start Instant and end Instant for a specific timer.
+/// The given name will be presented in the benchmark summary,
+/// start and end Instants will be used for calculating runtime.
+#[derive(Debug)]
+pub struct NamedTimer {
+    name: &'static str,
+    start: Option<Instant>,
+    end: Option<Instant>,
+}
+
+impl NamedTimer {
+    pub fn start(name: &'static str) -> Self {
+        Self {
+            name,
+            start: Some(Instant::now()),
+            end: None,
+        }
+    }
+    pub fn end(&mut self) {
+        self.end = Some(Instant::now());
+    }
+}
+
+#[test]
+fn benchmark() {
+    let mut benchmarks = Benchmark::init();
+    let mut test_timer = NamedTimer::start("test");
+    std::thread::sleep(std::time::Duration::from_millis(100));
+    test_timer.end();
+    benchmarks.push(test_timer);
+    benchmarks.push(NamedTimer::start("only_start"));
+    assert!(benchmarks
+        .summary()
+        .contains("\nRustScan Benchmark Summary\ntest       | 0."));
+    assert_ne!(benchmarks.summary().contains("only_start"), true);
+}
@@ -1,4 +1,5 @@
 use serde_derive::Deserialize;
+use std::collections::HashMap;
 use std::fs;
 use structopt::{clap::arg_enum, StructOpt};

@@ -9,13 +10,26 @@ arg_enum! {
    /// Represents the strategy in which the port scanning will run.
    ///   - Serial will run from start to end, for example 1 to 1_000.
    ///   - Random will randomize the order in which ports will be scanned.
-    #[derive(Deserialize, Debug, StructOpt, Clone, PartialEq)]
+    #[derive(Deserialize, Debug, StructOpt, Clone, Copy, PartialEq)]
    pub enum ScanOrder {
        Serial,
        Random,
    }
 }

+arg_enum! {
+    /// Represents the scripts variant.
+    ///   - none will avoid running any script, only portscan results will be shown.
+    ///   - default will run the default embedded nmap script, that's part of RustScan since the beginning.
+    ///   - custom will read the ScriptConfig file and the available scripts in the predefined folders
+    #[derive(Deserialize, Debug, StructOpt, Clone, PartialEq, Copy)]
+    pub enum ScriptsRequired {
+        None,
+        Default,
+        Custom,
+    }
+}
+
 /// Represents the range of ports to be scanned.
 #[derive(Deserialize, Debug, Clone, PartialEq)]
 pub struct PortRange {
@@ -23,10 +37,11 @@ pub struct PortRange {
    pub end: u16,
 }

+#[cfg(not(tarpaulin_include))]
 fn parse_range(input: &str) -> Result<PortRange, String> {
    let range = input
-        .split("-")
-        .map(|x| x.parse::<u16>())
+        .split('-')
+        .map(str::parse)
        .collect::<Result<Vec<u16>, std::num::ParseIntError>>();

    if range.is_err() {
@@ -46,8 +61,9 @@ fn parse_range(input: &str) -> Result<PortRange, String> {
    }
 }

-#[derive(StructOpt, Debug)]
+#[derive(StructOpt, Debug, Clone)]
 #[structopt(name = "rustscan", setting = structopt::clap::AppSettings::TrailingVarArg)]
+#[allow(clippy::struct_excessive_bools)]
 /// Fast Port Scanner built in Rust.
 /// WARNING Do not use this program against sensitive infrastructure since the
 /// specified server may not be able to handle this many socket connections at once.
@@ -55,7 +71,7 @@ fn parse_range(input: &str) -> Result<PortRange, String> {
 /// - GitHub https://github.com/RustScan/RustScan
 pub struct Opts {
    /// A list of comma separated CIDRs, IPs, or hosts to be scanned.
-    #[structopt(use_delimiter = true)]
+    #[structopt(short, long, use_delimiter = true)]
    pub addresses: Vec<String>,

    /// A list of comma separed ports to be scanned. Example: 80,443,8080.
@@ -70,18 +86,14 @@ pub struct Opts {
    #[structopt(short, long)]
    pub no_config: bool,

-    /// Quiet mode. Only output the ports. No Nmap. Useful for grep or outputting to a file.
+    /// Greppable mode. Only output the ports. No Nmap. Useful for grep or outputting to a file.
    #[structopt(short, long)]
-    pub quiet: bool,
+    pub greppable: bool,

    /// Accessible mode. Turns off features which negatively affect screen readers.
    #[structopt(long)]
    pub accessible: bool,

-    /// Turns off Nmap.
-    #[structopt(long)]
-    pub no_nmap: bool,
-
    /// The batch size for port scanning, it increases or slows the speed of
    /// scanning. Depends on the open file limit of your OS.  If you do 65535
    /// it will do every port at the same time. Although, your OS may not
@@ -93,9 +105,14 @@ pub struct Opts {
    #[structopt(short, long, default_value = "1500")]
    pub timeout: u32,

+    /// The number of tries before a port is assumed to be closed.
+    /// If set to 0, rustscan will correct it to 1.
+    #[structopt(long, default_value = "1")]
+    pub tries: u8,
+
    /// Automatically ups the ULIMIT with the value you provided.
    #[structopt(short, long)]
-    pub ulimit: Option<rlimit::rlim>,
+    pub ulimit: Option<rlimit::RawRlim>,

    /// The order of scanning to be performed. The "serial" option will
    /// scan ports in ascending order while the "random" option will scan
@@ -103,15 +120,24 @@ pub struct Opts {
    #[structopt(long, possible_values = &ScanOrder::variants(), case_insensitive = true, default_value = "serial")]
    pub scan_order: ScanOrder,

-    /// The Nmap arguments to run.
+    /// Level of scripting required for the run.
+    #[structopt(long, possible_values = &ScriptsRequired::variants(), case_insensitive = true, default_value = "default")]
+    pub scripts: ScriptsRequired,
+
+    /// Use the top 1000 ports.
+    #[structopt(long)]
+    pub top: bool,
+
+    /// The Script arguments to run.
    /// To use the argument -A, end RustScan's args with '-- -A'.
-    /// Example: 'rustscan -T 1500 127.0.0.1 -- -A -sC'.
+    /// Example: 'rustscan -T 1500 -a 127.0.0.1 -- -A -sC'.
    /// This command adds -Pn -vvv -p $PORTS automatically to nmap.
    /// For things like --script '(safe and vuln)' enclose it in quotations marks \"'(safe and vuln)'\"")
    #[structopt(last = true)]
    pub command: Vec<String>,
 }

+#[cfg(not(tarpaulin_include))]
 impl Opts {
    pub fn read() -> Self {
        let mut opts = Opts::from_args();
@@ -146,7 +172,10 @@ impl Opts {
            }
        }

-        merge_required!(addresses, quiet, accessible, batch_size, timeout, scan_order, command);
+        merge_required!(
+            addresses, greppable, accessible, batch_size, timeout, tries, scan_order, scripts,
+            command
+        );
    }

    fn merge_optional(&mut self, config: &Config) {
@@ -160,28 +189,40 @@ impl Opts {
            }
        }

-        merge_optional!(ports, range, ulimit);
+        // Only use top ports when the user asks for them
+        if self.top && config.ports.is_some() {
+            let mut ports: Vec<u16> = Vec::with_capacity(config.ports.clone().unwrap().len());
+            for entry in config.ports.clone().unwrap().keys() {
+                ports.push(entry.parse().unwrap())
+            }
+            self.ports = Some(ports);
+        }
+
+        merge_optional!(range, ulimit);
    }
 }

 /// Struct used to deserialize the options specified within our config file.
 /// These will be further merged with our command line arguments in order to
 /// generate the final Opts struct.
+#[cfg(not(tarpaulin_include))]
 #[derive(Debug, Deserialize)]
 pub struct Config {
    addresses: Option<Vec<String>>,
-    ports: Option<Vec<u16>>,
+    ports: Option<HashMap<String, u16>>,
    range: Option<PortRange>,
-    quiet: Option<bool>,
+    greppable: Option<bool>,
    accessible: Option<bool>,
    batch_size: Option<u16>,
    timeout: Option<u32>,
-    no_nmap: Option<bool>,
-    ulimit: Option<rlimit::rlim>,
+    tries: Option<u8>,
+    ulimit: Option<rlimit::RawRlim>,
    scan_order: Option<ScanOrder>,
    command: Option<Vec<String>>,
+    scripts: Option<ScriptsRequired>,
 }

+#[cfg(not(tarpaulin_include))]
 impl Config {
    /// Reads the configuration file with TOML format and parses it into a
    /// Config struct.
@@ -190,44 +231,25 @@ impl Config {
    ///
    /// addresses = ["127.0.0.1", "127.0.0.1"]
    /// ports = [80, 443, 8080]
-    /// quiet = true
+    /// greppable = true
    /// scan_order: "Serial"
    ///
    pub fn read() -> Self {
-        let mut paths = Vec::new();
-        paths.push(match dirs::home_dir() {
-            Some(mut path) => {
-                path.push(".rustscan.toml");
-                path
-            }
+        let mut home_dir = match dirs::home_dir() {
+            Some(dir) => dir,
            None => panic!("Could not infer config file path."),
-        });
+        };
+        home_dir.push(".rustscan.toml");

-        paths.push(match dirs::config_dir() {
-            Some(mut path) => {
-                path.push("rustscan");
-                path.push("config.toml");
-                path
+        let mut content = String::new();
+        if home_dir.exists() {
+            content = match fs::read_to_string(home_dir) {
+                Ok(content) => content,
+                Err(_) => String::new(),
            }
-            None => panic!("Could not infer config file path."),
-        });
-
-        let mut contents: Option<String> = None;
-        for path in paths.iter().rev() {
-            contents = match fs::read_to_string(path) {
-                Ok(content) => {
-                    contents = Some(content);
-                    break;
-                }
-                Err(_) => None,
-            };
        }

-        if contents.is_none() {
-            contents = Some(String::new());
-        }
-
-        let config: Config = match toml::from_str(&contents.unwrap()) {
+        let config: Config = match toml::from_str(&content) {
            Ok(config) => config,
            Err(e) => {
                println!("Found {} in configuration file.\nAborting scan.\n", e);
@@ -241,43 +263,56 @@ impl Config {

 #[cfg(test)]
 mod tests {
-    use super::{Config, Opts, PortRange, ScanOrder};
+    use super::{Config, Opts, PortRange, ScanOrder, ScriptsRequired};
+    impl Config {
+        fn default() -> Self {
+            Self {
+                addresses: Some(vec!["127.0.0.1".to_owned()]),
+                ports: None,
+                range: None,
+                greppable: Some(true),
+                batch_size: Some(25_000),
+                timeout: Some(1_000),
+                tries: Some(1),
+                ulimit: None,
+                command: Some(vec!["-A".to_owned()]),
+                accessible: Some(true),
+                scan_order: Some(ScanOrder::Random),
+                scripts: None,
+            }
+        }
+    }
+
+    impl Opts {
+        pub fn default() -> Self {
+            Self {
+                addresses: vec![],
+                ports: None,
+                range: None,
+                greppable: true,
+                batch_size: 0,
+                timeout: 0,
+                tries: 0,
+                ulimit: None,
+                command: vec![],
+                accessible: false,
+                scan_order: ScanOrder::Serial,
+                no_config: true,
+                top: false,
+                scripts: ScriptsRequired::Default,
+            }
+        }
+    }

    #[test]
    fn opts_no_merge_when_config_is_ignored() {
-        let mut opts = Opts {
-            addresses: vec![],
-            ports: None,
-            range: None,
-            quiet: false,
-            batch_size: 0,
-            timeout: 0,
-            ulimit: None,
-            command: vec![],
-            accessible: false,
-            no_nmap: false,
-            scan_order: ScanOrder::Serial,
-            no_config: true,
-        };
-
-        let config = Config {
-            addresses: Some(vec!["127.0.0.1".to_owned()]),
-            ports: None,
-            range: None,
-            quiet: Some(true),
-            batch_size: Some(25_000),
-            timeout: Some(1_000),
-            ulimit: None,
-            no_nmap: Some(false),
-            command: Some(vec!["-A".to_owned()]),
-            accessible: Some(true),
-            scan_order: Some(ScanOrder::Random),
-        };
+        let mut opts = Opts::default();
+        let config = Config::default();

        opts.merge(&config);

        assert_eq!(opts.addresses, vec![] as Vec<String>);
-        assert_eq!(opts.quiet, false);
+        assert_eq!(opts.greppable, true);
        assert_eq!(opts.accessible, false);
        assert_eq!(opts.timeout, 0);
        assert_eq!(opts.command, vec![] as Vec<String>);
@@ -286,82 +321,32 @@ mod tests {

    #[test]
    fn opts_merge_required_arguments() {
-        let mut opts = Opts {
-            addresses: vec![],
-            ports: None,
-            range: None,
-            quiet: false,
-            batch_size: 0,
-            timeout: 0,
-            ulimit: None,
-            command: vec![],
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_nmap: false,
-            no_config: false,
-        };
-
-        let config = Config {
-            addresses: Some(vec!["127.0.0.1".to_owned()]),
-            ports: None,
-            no_nmap: Some(false),
-            range: None,
-            quiet: Some(true),
-            batch_size: Some(25_000),
-            timeout: Some(1_000),
-            ulimit: None,
-            command: Some(vec!["-A".to_owned()]),
-            accessible: Some(true),
-            scan_order: Some(ScanOrder::Random),
-        };
+        let mut opts = Opts::default();
+        let config = Config::default();

        opts.merge_required(&config);

        assert_eq!(opts.addresses, config.addresses.unwrap());
-        assert_eq!(opts.quiet, config.quiet.unwrap());
+        assert_eq!(opts.greppable, config.greppable.unwrap());
        assert_eq!(opts.timeout, config.timeout.unwrap());
        assert_eq!(opts.command, config.command.unwrap());
        assert_eq!(opts.accessible, config.accessible.unwrap());
        assert_eq!(opts.scan_order, config.scan_order.unwrap());
+        assert_eq!(opts.scripts, ScriptsRequired::Default)
    }

    #[test]
    fn opts_merge_optional_arguments() {
-        let mut opts = Opts {
-            addresses: vec![],
-            ports: None,
-            range: None,
-            quiet: false,
-            batch_size: 0,
-            timeout: 0,
-            ulimit: None,
-            command: vec![],
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_nmap: false,
-            no_config: false,
-        };
-
-        let config = Config {
-            addresses: None,
-            ports: Some(vec![80, 403]),
-            range: Some(PortRange {
-                start: 1,
-                end: 1_000,
-            }),
-            quiet: None,
-            batch_size: None,
-            timeout: None,
-            no_nmap: Some(false),
-            ulimit: Some(1_000),
-            command: None,
-            accessible: None,
-            scan_order: None,
-        };
+        let mut opts = Opts::default();
+        let mut config = Config::default();
+        config.range = Some(PortRange {
+            start: 1,
+            end: 1_000,
+        });
+        config.ulimit = Some(1_000);

        opts.merge_optional(&config);

-        assert_eq!(opts.ports, config.ports);
        assert_eq!(opts.range, config.range);
        assert_eq!(opts.ulimit, config.ulimit);
    }
@@ -1,9 +1,13 @@
+#![deny(clippy::all)]
+#![warn(clippy::pedantic)]
+#![allow(clippy::doc_markdown, clippy::if_not_else, clippy::non_ascii_literal)]
+
 extern crate shell_words;

 mod tui;

 mod input;
-use input::{Config, Opts, PortRange, ScanOrder};
+use input::{Config, Opts, PortRange, ScanOrder, ScriptsRequired};

 mod scanner;
 use scanner::Scanner;
@@ -11,64 +15,103 @@ use scanner::Scanner;
 mod port_strategy;
 use port_strategy::PortStrategy;

+mod benchmark;
+use benchmark::{Benchmark, NamedTimer};
+
+mod scripts;
+use scripts::{init_scripts, Script, ScriptFile};
+
 use cidr_utils::cidr::IpCidr;
-use colorful::Color;
-use colorful::Colorful;
+use colorful::{Color, Colorful};
 use futures::executor::block_on;
-use rlimit::Resource;
-use rlimit::{getrlimit, setrlimit};
+use rlimit::{getrlimit, setrlimit, RawRlim, Resource, Rlim};
 use std::collections::HashMap;
-use std::net::ToSocketAddrs;
-use std::process::Command;
-use std::{net::IpAddr, time::Duration};
+use std::convert::TryInto;
+use std::fs::File;
+use std::io::{prelude::*, BufReader};
+use std::net::{IpAddr, ToSocketAddrs};
+use std::path::Path;
+use std::string::ToString;
+use std::time::Duration;
+use trust_dns_resolver::{
+    config::{ResolverConfig, ResolverOpts},
+    Resolver,
+};

 extern crate colorful;
 extern crate dirs;

 // Average value for Ubuntu
-const DEFAULT_FILE_DESCRIPTORS_LIMIT: rlimit::rlim = 8000;
+const DEFAULT_FILE_DESCRIPTORS_LIMIT: RawRlim = 8000;
 // Safest batch size based on experimentation
-const AVERAGE_BATCH_SIZE: rlimit::rlim = 3000;
+const AVERAGE_BATCH_SIZE: RawRlim = 3000;

 #[macro_use]
 extern crate log;

 #[cfg(not(tarpaulin_include))]
+#[allow(clippy::too_many_lines)]
 /// Faster Nmap scanning with Rust
 /// If you're looking for the actual scanning, check out the module Scanner
 fn main() {
    env_logger::init();
+    let mut benchmarks = Benchmark::init();
+    let mut rustscan_bench = NamedTimer::start("RustScan");

    let mut opts: Opts = Opts::read();
    let config = Config::read();
    opts.merge(&config);
-    dbg!(&opts);

-    info!("Main() `opts` arguments are {:?}", opts);
+    debug!("Main() `opts` arguments are {:?}", opts);

-    if !opts.quiet && !opts.accessible {
-        print_opening();
+    let scripts_to_run: Vec<ScriptFile> = match init_scripts(opts.scripts) {
+        Ok(scripts_to_run) => scripts_to_run,
+        Err(e) => {
+            warning!(
+                format!("Initiating scripts failed!\n{}", e),
+                opts.greppable,
+                opts.accessible
+            );
+            std::process::exit(1);
+        }
+    };
+
+    debug!("Scripts initialized {:?}", &scripts_to_run);
+
+    if !opts.greppable && !opts.accessible {
+        print_opening(&opts);
    }

    let ips: Vec<IpAddr> = parse_addresses(&opts);

    if ips.is_empty() {
-        warning!("No IPs could be resolved, aborting scan.", false);
+        warning!(
+            "No IPs could be resolved, aborting scan.",
+            opts.greppable,
+            opts.accessible
+        );
        std::process::exit(1);
    }

-    let ulimit: rlimit::rlim = adjust_ulimit_size(&opts);
+    let ulimit: RawRlim = adjust_ulimit_size(&opts);
    let batch_size: u16 = infer_batch_size(&opts, ulimit);

    let scanner = Scanner::new(
        &ips,
        batch_size,
        Duration::from_millis(opts.timeout.into()),
-        opts.quiet,
-        PortStrategy::pick(opts.range, opts.ports, opts.scan_order),
+        opts.tries,
+        opts.greppable,
+        PortStrategy::pick(&opts.range, opts.ports, opts.scan_order),
+        opts.accessible,
    );
+    debug!("Scanner finished building: {:?}", scanner);

+    let mut portscan_bench = NamedTimer::start("Portscan");
    let scan_result = block_on(scanner.run());
+    portscan_bench.end();
+    benchmarks.push(portscan_bench);
+
    let mut ports_per_ip = HashMap::new();

    for socket in scan_result {
@@ -86,59 +129,87 @@ fn main() {
        // If we got here it means the IP was not found within the HashMap, this
        // means the scan couldn't find any open ports for it.

-        let x = format!("{} Looks like I didn't find any open ports for {:?}. This is usually caused by a high batch size.
-        \n*I used {} batch size, consider lowering to {} with {} or a comfortable number for your system.
+        let x = format!("Looks like I didn't find any open ports for {:?}. This is usually caused by a high batch size.
+        \n*I used {} batch size, consider lowering it with {} or a comfortable number for your system.
        \n Alternatively, increase the timeout if your ping is high. Rustscan -t 2000 for 2000 milliseconds (2s) timeout.\n",
-        "ERROR",
        ip,
        opts.batch_size,
-        (opts.batch_size / 2).to_string(),
-        "'rustscan -b <batch_size> <ip address>'");
-        warning!(x, opts.quiet);
+        "'rustscan -b <batch_size> -a <ip address>'");
+        warning!(x, opts.greppable, opts.accessible);
    }

-    for (ip, ports) in ports_per_ip.iter_mut() {
-        let nmap_str_ports: Vec<String> = ports.into_iter().map(|port| port.to_string()).collect();
-
-        detail!("Starting Nmap", opts.quiet);
+    let mut script_bench = NamedTimer::start("Scripts");
+    for (ip, ports) in &ports_per_ip {
+        let vec_str_ports: Vec<String> = ports.iter().map(ToString::to_string).collect();

        // nmap port style is 80,443. Comma separated with no spaces.
-        let ports_str = nmap_str_ports.join(",");
+        let ports_str = vec_str_ports.join(",");

-        // if quiet mode is on nmap should not be spawned
-        if opts.quiet {
-            println!("{}", ports_str);
+        // if option scripts is none, no script will be spawned
+        if opts.greppable || opts.scripts == ScriptsRequired::None {
+            println!("{} -> [{}]", &ip, ports_str);
            continue;
        }
+        detail!("Starting Script(s)", opts.greppable, opts.accessible);

-        let addr = ip.to_string();
-        let user_nmap_args =
-            shell_words::split(&opts.command.join(" ")).expect("failed to parse nmap arguments");
-        let nmap_args = build_nmap_arguments(&addr, &ports_str, &user_nmap_args, ip.is_ipv6());
+        // Run all the scripts we found and parsed based on the script config file tags field.
+        for mut script_f in scripts_to_run.clone() {
+            // This part allows us to add commandline arguments to the Script call_format, appending them to the end of the command.
+            if !opts.command.is_empty() {
+                let user_extra_args = &opts.command.join(" ");
+                debug!("Extra args vec {:?}", user_extra_args);
+                if script_f.call_format.is_some() {
+                    let mut call_f = script_f.call_format.unwrap();
+                    call_f.push(' ');
+                    call_f.push_str(user_extra_args);
+                    output!(
+                        format!("Running script {:?} on ip {}\nDepending on the complexity of the script, results may take some time to appear.", call_f, &ip),
+                        opts.greppable,
+                        opts.accessible
+                    );
+                    debug!("Call format {}", call_f);
+                    script_f.call_format = Some(call_f);
+                }
+            }

-        output!(format!(
-            "The Nmap command to be run is nmap {}\n",
-            &nmap_args.join(" ")
-        ));
-
-        // Runs the nmap command and spawns it as a process.
-        let mut child = Command::new("nmap")
-            .args(&nmap_args)
-            .spawn()
-            .expect("failed to execute nmap process");
-
-        child.wait().expect("failed to wait on nmap process");
+            // Building the script with the arguments from the ScriptFile, and ip-ports.
+            let script = Script::build(
+                script_f.path,
+                *ip,
+                ports.clone(),
+                script_f.port,
+                script_f.ports_separator,
+                script_f.tags,
+                script_f.call_format,
+            );
+            match script.run() {
+                Ok(script_result) => {
+                    detail!(script_result.to_string(), opts.greppable, opts.accessible);
+                }
+                Err(e) => {
+                    warning!(&format!("Error {}", e), opts.greppable, opts.accessible);
+                }
+            }
+        }
    }
+
+    // To use the runtime benchmark, run the process as: RUST_LOG=info ./rustscan
+    script_bench.end();
+    benchmarks.push(script_bench);
+    rustscan_bench.end();
+    benchmarks.push(rustscan_bench);
+    debug!("Benchmarks raw {:?}", benchmarks);
+    info!("{}", benchmarks.summary());
 }

 /// Prints the opening title of RustScan
-fn print_opening() {
-    info!("Printing opening");
+fn print_opening(opts: &Opts) {
+    debug!("Printing opening");
    let s = r#".----. .-. .-. .----..---.  .----. .---.   .--.  .-. .-.
 | {}  }| { } |{ {__ {_   _}{ {__  /  ___} / {} \ |  `| |
 | .-. \| {_} |.-._} } | |  .-._} }\     }/  /\  \| |\  |
 `-' `-'`-----'`----'  `-'  `----'  `---' `-'  `-'`-' `-'
-Faster Nmap scanning with Rust."#;
+The Modern Day Port Scanner."#;
    println!("{}", s.gradient(Color::Green).bold());
    let info = r#"________________________________________
 : https://discord.gg/GFrQsGy           :
@@ -147,87 +218,146 @@ Faster Nmap scanning with Rust."#;
    println!("{}", info.gradient(Color::Yellow).bold());
    funny_opening!();

-    let config_path = match dirs::config_dir() {
-        Some(mut path) => {
-            path.push("rustscan");
-            path.push("config.toml");
-            path
-        }
-        None => panic!("Couldn't find config dir."),
-    };
+    let config_path = dirs::home_dir()
+        .expect("Could not infer config file path.")
+        .join(".rustscan.toml");

-    detail!(format!(
-        "{} {:?}",
-        "The config file is expected to be at", config_path
-    ));
+    detail!(
+        format!("The config file is expected to be at {:?}", config_path),
+        opts.greppable,
+        opts.accessible
+    );
 }
-#[cfg(not(tarpaulin_include))]
-fn build_nmap_arguments<'a>(
-    addr: &'a str,
-    ports: &'a str,
-    user_args: &'a Vec<String>,
-    is_ipv6: bool,
-) -> Vec<&'a str> {
-    let mut arguments: Vec<&str> = user_args.iter().map(AsRef::as_ref).collect();
-    arguments.push("-vvv");

-    if is_ipv6 {
-        arguments.push("-6");
+/// Goes through all possible IP inputs (files or via argparsing)
+/// Parses the string(s) into IPs
+fn parse_addresses(input: &Opts) -> Vec<IpAddr> {
+    let mut ips: Vec<IpAddr> = Vec::new();
+    let mut unresolved_addresses: Vec<&str> = Vec::new();
+    let backup_resolver =
+        Resolver::new(ResolverConfig::cloudflare_tls(), ResolverOpts::default()).unwrap();
+
+    for address in &input.addresses {
+        let parsed_ips = parse_address(address, &backup_resolver);
+        if !parsed_ips.is_empty() {
+            ips.extend(parsed_ips);
+        } else {
+            unresolved_addresses.push(address);
+        }
    }

-    arguments.push("-p");
-    arguments.push(ports);
-    arguments.push(addr);
+    // If we got to this point this can only be a file path or the wrong input.
+    for file_path in unresolved_addresses {
+        let file_path = Path::new(file_path);

-    arguments
-}
+        if !file_path.is_file() {
+            warning!(
+                format!("Host {:?} could not be resolved.", file_path),
+                input.greppable,
+                input.accessible
+            );

-fn parse_addresses(opts: &Opts) -> Vec<IpAddr> {
-    let mut ips: Vec<IpAddr> = Vec::new();
+            continue;
+        }

-    for ip_or_host in &opts.addresses {
-        match IpCidr::from_str(ip_or_host) {
-            Ok(cidr) => cidr.iter().for_each(|ip| ips.push(ip)),
-            _ => match format!("{}:{}", &ip_or_host, 80).to_socket_addrs() {
-                Ok(mut iter) => ips.push(iter.nth(0).unwrap().ip()),
-                _ => {
-                    let failed_to_resolve = format!("Host {:?} could not be resolved.", ip_or_host);
-                    warning!(failed_to_resolve, opts.quiet);
-                }
-            },
+        if let Ok(x) = read_ips_from_file(file_path, &backup_resolver) {
+            ips.extend(x);
+        } else {
+            warning!(
+                format!("Host {:?} could not be resolved.", file_path),
+                input.greppable,
+                input.accessible
+            );
        }
    }

    ips
 }

-fn adjust_ulimit_size(opts: &Opts) -> rlimit::rlim {
-    if opts.ulimit.is_some() {
-        let limit: rlimit::rlim = opts.ulimit.unwrap();
+/// Given a string, parse it as an host, IP address, or CIDR.
+/// This allows us to pass files as hosts or cidr or IPs easily
+/// Call this everytime you have a possible IP_or_host
+fn parse_address(address: &str, resolver: &Resolver) -> Vec<IpAddr> {
+    IpCidr::from_str(&address)
+        .map(|cidr| cidr.iter().collect())
+        .ok()
+        .or_else(|| {
+            format!("{}:{}", &address, 80)
+                .to_socket_addrs()
+                .ok()
+                .map(|mut iter| vec![iter.next().unwrap().ip()])
+        })
+        .unwrap_or_else(|| resolve_ips_from_host(address, resolver))
+}

-        match setrlimit(Resource::NOFILE, limit, limit) {
-            Ok(_) => {
-                detail!(
-                    format!("Automatically increasing ulimit value to {}.", limit),
-                    opts.quiet
-                );
-            }
-            Err(_) => println!("{}", "ERROR. Failed to set ulimit value."),
+/// Uses DNS to get the IPS assiocated with host
+fn resolve_ips_from_host(source: &str, backup_resolver: &Resolver) -> Vec<IpAddr> {
+    let mut ips: Vec<std::net::IpAddr> = Vec::new();
+
+    if let Ok(addrs) = source.to_socket_addrs() {
+        for ip in addrs {
+            ips.push(ip.ip());
+        }
+    } else if let Ok(addrs) = backup_resolver.lookup_ip(source) {
+        ips.extend(addrs.iter());
+    }
+
+    ips
+}
+
+#[cfg(not(tarpaulin_include))]
+/// Parses an input file of IPs and uses those
+fn read_ips_from_file(
+    ips: &std::path::Path,
+    backup_resolver: &Resolver,
+) -> Result<Vec<std::net::IpAddr>, std::io::Error> {
+    let file = File::open(ips)?;
+    let reader = BufReader::new(file);
+
+    let mut ips: Vec<std::net::IpAddr> = Vec::new();
+
+    for address_line in reader.lines() {
+        if let Ok(address) = address_line {
+            ips.extend(parse_address(&address, backup_resolver));
+        } else {
+            debug!("Line in file is not valid");
+        }
+    }
+
+    Ok(ips)
+}
+
+fn adjust_ulimit_size(opts: &Opts) -> RawRlim {
+    if opts.ulimit.is_some() {
+        let limit: Rlim = Rlim::from_raw(opts.ulimit.unwrap());
+
+        if setrlimit(Resource::NOFILE, limit, limit).is_ok() {
+            detail!(
+                format!("Automatically increasing ulimit value to {}.", limit),
+                opts.greppable,
+                opts.accessible
+            );
+        } else {
+            warning!(
+                "ERROR. Failed to set ulimit value.",
+                opts.greppable,
+                opts.accessible
+            );
        }
    }

    let (rlim, _) = getrlimit(Resource::NOFILE).unwrap();

-    rlim
+    rlim.as_raw()
 }

-fn infer_batch_size(opts: &Opts, ulimit: rlimit::rlim) -> u16 {
-    let mut batch_size: rlimit::rlim = opts.batch_size.into();
+fn infer_batch_size(opts: &Opts, ulimit: RawRlim) -> u16 {
+    let mut batch_size: RawRlim = opts.batch_size.into();

    // Adjust the batch size when the ulimit value is lower than the desired batch size
    if ulimit < batch_size {
        warning!("File limit is lower than default batch size. Consider upping with --ulimit. May cause harm to sensitive servers",
-            opts.quiet
+            opts.greppable, opts.accessible
        );

        // When the OS supports high file limits like 8000, but the user
@@ -237,72 +367,46 @@ fn infer_batch_size(opts: &Opts, ulimit: rlimit::rlim) -> u16 {
            // ulimit is smaller than aveage batch size
            // user must have very small ulimit
            // decrease batch size to half of ulimit
-            warning!("Your file limit is very small, which negatively impacts RustScan's speed. Use the Docker image, or up the Ulimit with '--ulimit 5000'. ");
+            warning!("Your file limit is very small, which negatively impacts RustScan's speed. Use the Docker image, or up the Ulimit with '--ulimit 5000'. ", opts.greppable, opts.accessible);
            info!("Halving batch_size because ulimit is smaller than average batch size");
-            batch_size = ulimit / 2
+            batch_size = ulimit / 2;
        } else if ulimit > DEFAULT_FILE_DESCRIPTORS_LIMIT {
            info!("Batch size is now average batch size");
-            batch_size = AVERAGE_BATCH_SIZE
+            batch_size = AVERAGE_BATCH_SIZE;
        } else {
-            batch_size = ulimit - 100
+            batch_size = ulimit - 100;
        }
    }
    // When the ulimit is higher than the batch size let the user know that the
    // batch size can be increased unless they specified the ulimit themselves.
    else if ulimit + 2 > batch_size && (opts.ulimit.is_none()) {
-        detail!(format!(
-                "File limit higher than batch size. Can increase speed by increasing batch size '-b {}'.",
-                ulimit - 100
-            ), opts.quiet);
+        detail!(format!("File limit higher than batch size. Can increase speed by increasing batch size '-b {}'.", ulimit - 100),
+        opts.greppable, opts.accessible);
    }

-    batch_size as u16
+    batch_size
+        .try_into()
+        .expect("Couldn't fit the batch size into a u16.")
 }

 #[cfg(test)]
 mod tests {
-    use crate::{
-        adjust_ulimit_size, infer_batch_size, parse_addresses, print_opening, Opts, ScanOrder,
-    };
+    use crate::{adjust_ulimit_size, infer_batch_size, parse_addresses, print_opening, Opts};
    use std::net::Ipv4Addr;

    #[test]
    fn batch_size_lowered() {
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 50_000,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.batch_size = 50_000;
        let batch_size = infer_batch_size(&opts, 120);

-        assert!(batch_size < 50_000);
+        assert!(batch_size < opts.batch_size);
    }

    #[test]
    fn batch_size_lowered_average_size() {
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 50_000,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.batch_size = 50_000;
        let batch_size = infer_batch_size(&opts, 9_000);

        assert!(batch_size == 3_000);
@@ -311,20 +415,8 @@ mod tests {
    fn batch_size_equals_ulimit_lowered() {
        // because ulimit and batch size are same size, batch size is lowered
        // to ULIMIT - 100
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 50_000,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.batch_size = 50_000;
        let batch_size = infer_batch_size(&opts, 5_000);

        assert!(batch_size == 4_900);
@@ -332,68 +424,36 @@ mod tests {
    #[test]
    fn batch_size_adjusted_2000() {
        // ulimit == batch_size
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 50_000,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.batch_size = 50_000;
+        opts.ulimit = Some(2_000);
        let batch_size = adjust_ulimit_size(&opts);

        assert!(batch_size == 2_000);
    }
    #[test]
    fn test_print_opening_no_panic() {
+        let mut opts = Opts::default();
+        opts.ulimit = Some(2_000);
        // print opening should not panic
-        print_opening();
-        assert!(1 == 1);
+        print_opening(&opts);
    }
+
    #[test]
-    fn test_high_ulimit_no_quiet_mode() {
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: false,
-            batch_size: 10,
-            timeout: 1_000,
-            ulimit: None,
-            command: Vec::new(),
-            accessible: true,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+    fn test_high_ulimit_no_greppable_mode() {
+        let mut opts = Opts::default();
+        opts.batch_size = 10;
+        opts.greppable = false;

-        infer_batch_size(&opts, 1_000_000);
+        let batch_size = infer_batch_size(&opts, 1_000_000);

-        assert!(1 == 1);
+        assert!(batch_size == opts.batch_size);
    }

    #[test]
    fn parse_correct_addresses() {
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned(), "192.168.0.0/30".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 10,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.addresses = vec!["127.0.0.1".to_owned(), "192.168.0.0/30".to_owned()];
        let ips = parse_addresses(&opts);

        assert_eq!(
@@ -410,20 +470,8 @@ mod tests {

    #[test]
    fn parse_correct_host_addresses() {
-        let opts = Opts {
-            addresses: vec!["google.com".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 10,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.addresses = vec!["google.com".to_owned()];
        let ips = parse_addresses(&opts);

        assert_eq!(ips.len(), 1);
@@ -431,20 +479,8 @@ mod tests {

    #[test]
    fn parse_correct_and_incorrect_addresses() {
-        let opts = Opts {
-            addresses: vec!["127.0.0.1".to_owned(), "im_wrong".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 10,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.addresses = vec!["127.0.0.1".to_owned(), "im_wrong".to_owned()];
        let ips = parse_addresses(&opts);

        assert_eq!(ips, [Ipv4Addr::new(127, 0, 0, 1),]);
@@ -452,22 +488,36 @@ mod tests {

    #[test]
    fn parse_incorrect_addresses() {
-        let opts = Opts {
-            addresses: vec!["im_wrong".to_owned(), "300.10.1.1".to_owned()],
-            ports: None,
-            range: None,
-            quiet: true,
-            batch_size: 10,
-            timeout: 1_000,
-            ulimit: Some(2_000),
-            command: Vec::new(),
-            accessible: false,
-            scan_order: ScanOrder::Serial,
-            no_config: false,
-            no_nmap: false,
-        };
+        let mut opts = Opts::default();
+        opts.addresses = vec!["im_wrong".to_owned(), "300.10.1.1".to_owned()];
        let ips = parse_addresses(&opts);

        assert_eq!(ips.is_empty(), true);
    }
+    #[test]
+    fn parse_hosts_file_and_incorrect_hosts() {
+        // Host file contains IP, Hosts, incorrect IPs, incorrect hosts
+        let mut opts = Opts::default();
+        opts.addresses = vec!["fixtures/hosts.txt".to_owned()];
+        let ips = parse_addresses(&opts);
+        assert_eq!(ips.len(), 3);
+    }
+
+    #[test]
+    fn parse_empty_hosts_file() {
+        // Host file contains IP, Hosts, incorrect IPs, incorrect hosts
+        let mut opts = Opts::default();
+        opts.addresses = vec!["fixtures/empty_hosts.txt".to_owned()];
+        let ips = parse_addresses(&opts);
+        assert_eq!(ips.len(), 0);
+    }
+
+    #[test]
+    fn parse_naughty_host_file() {
+        // Host file contains IP, Hosts, incorrect IPs, incorrect hosts
+        let mut opts = Opts::default();
+        opts.addresses = vec!["fixtures/naughty_string.txt".to_owned()];
+        let ips = parse_addresses(&opts);
+        assert_eq!(ips.len(), 0);
+    }
 }
@@ -8,6 +8,7 @@ use range_iterator::RangeIterator;
 ///
 /// Right now all these options involve ranges, but in the future
 /// it will also contain custom lists of ports.
+#[derive(Debug)]
 pub enum PortStrategy {
    Manual(Vec<u16>),
    Serial(SerialRange),
@@ -15,7 +16,7 @@ pub enum PortStrategy {
 }

 impl PortStrategy {
-    pub fn pick(range: Option<PortRange>, ports: Option<Vec<u16>>, order: ScanOrder) -> Self {
+    pub fn pick(range: &Option<PortRange>, ports: Option<Vec<u16>>, order: ScanOrder) -> Self {
        match order {
            ScanOrder::Serial if ports.is_none() => {
                let range = range.as_ref().unwrap();
@@ -58,6 +59,7 @@ trait RangeOrder {

 /// As the name implies SerialRange will always generate a vector in
 /// ascending order.
+#[derive(Debug)]
 pub struct SerialRange {
    start: u16,
    end: u16,
@@ -71,6 +73,7 @@ impl RangeOrder for SerialRange {

 /// As the name implies RandomRange will always generate a vector with
 /// a random order. This vector is built following the LCG algorithm.
+#[derive(Debug)]
 pub struct RandomRange {
    start: u16,
    end: u16,
@@ -99,7 +102,7 @@ mod tests {
    #[test]
    fn serial_strategy_with_range() {
        let range = PortRange { start: 1, end: 100 };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Serial);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Serial);
        let result = strategy.order();
        let expected_range = (1..100).into_iter().collect::<Vec<u16>>();
        assert_eq!(expected_range, result);
@@ -107,7 +110,7 @@ mod tests {
    #[test]
    fn random_strategy_with_range() {
        let range = PortRange { start: 1, end: 100 };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
        let mut result = strategy.order();
        let expected_range = (1..100).into_iter().collect::<Vec<u16>>();
        assert_ne!(expected_range, result);
@@ -118,14 +121,14 @@ mod tests {

    #[test]
    fn serial_strategy_with_ports() {
-        let strategy = PortStrategy::pick(None, Some(vec![80, 443]), ScanOrder::Serial);
+        let strategy = PortStrategy::pick(&None, Some(vec![80, 443]), ScanOrder::Serial);
        let result = strategy.order();
        assert_eq!(vec![80, 443], result);
    }

    #[test]
    fn random_strategy_with_ports() {
-        let strategy = PortStrategy::pick(None, Some((1..10).collect()), ScanOrder::Random);
+        let strategy = PortStrategy::pick(&None, Some((1..10).collect()), ScanOrder::Random);
        let mut result = strategy.order();
        let expected_range = (1..10).into_iter().collect::<Vec<u16>>();
        assert_ne!(expected_range, result);
@@ -1,5 +1,6 @@
 use gcd::Gcd;
 use rand::Rng;
+use std::convert::TryInto;

 pub struct RangeIterator {
    active: bool,
@@ -60,7 +61,11 @@ impl Iterator for RangeIterator {
        }

        self.normalized_pick = next_pick;
-        Some((self.actual_start + current_pick) as u16)
+        Some(
+            (self.actual_start + current_pick)
+                .try_into()
+                .expect("Could not convert u32 to u16"),
+        )
    }
 }

@@ -1,14 +1,18 @@
 use super::PortStrategy;

+mod socket_iterator;
+use socket_iterator::SocketIterator;
+
 use async_std::io;
 use async_std::net::TcpStream;
 use async_std::prelude::*;
-use colored::*;
+use colored::Colorize;
 use futures::stream::FuturesUnordered;
-use std::time::Duration;
 use std::{
-    io::ErrorKind,
+    collections::HashSet,
    net::{IpAddr, Shutdown, SocketAddr},
+    num::NonZeroU8,
+    time::Duration,
 };

 /// The class for the scanner
@@ -16,14 +20,17 @@ use std::{
 /// start & end is where the port scan starts and ends
 /// batch_size is how many ports at a time should be scanned
 /// Timeout is the time RustScan should wait before declaring a port closed. As datatype Duration.
-/// Quiet is whether or not RustScan should print things, or wait until the end to print only open ports.
+/// greppable is whether or not RustScan should print things, or wait until the end to print only the ip and open ports.
 #[cfg(not(tarpaulin_include))]
+#[derive(Debug)]
 pub struct Scanner {
    ips: Vec<IpAddr>,
    batch_size: u16,
    timeout: Duration,
-    quiet: bool,
+    tries: NonZeroU8,
+    greppable: bool,
    port_strategy: PortStrategy,
+    accessible: bool,
 }

 impl Scanner {
@@ -31,15 +38,19 @@ impl Scanner {
        ips: &[IpAddr],
        batch_size: u16,
        timeout: Duration,
-        quiet: bool,
+        tries: u8,
+        greppable: bool,
        port_strategy: PortStrategy,
+        accessible: bool,
    ) -> Self {
        Self {
            batch_size,
            timeout,
-            quiet,
+            tries: NonZeroU8::new(std::cmp::max(tries, 1)).unwrap(),
+            greppable,
            port_strategy,
-            ips: ips.iter().map(|ip| ip.to_owned()).collect(),
+            ips: ips.iter().map(ToOwned::to_owned).collect(),
+            accessible,
        }
    }

@@ -48,71 +59,97 @@ impl Scanner {
    /// Returns all open ports as Vec<u16>
    pub async fn run(&self) -> Vec<SocketAddr> {
        let ports: Vec<u16> = self.port_strategy.order();
-        let batch_per_ip: usize = self.batch_size as usize / self.ips.len();
+        let mut socket_iterator: SocketIterator = SocketIterator::new(&self.ips, &ports);
        let mut open_sockets: Vec<SocketAddr> = Vec::new();
-
-        for batch in ports.chunks(batch_per_ip) {
-            let mut sockets = self.scan_ports(batch).await;
-            open_sockets.append(&mut sockets);
-        }
-
-        open_sockets
-    }
-
-    /// Given a slice of sockets, scan them all.
-    /// Returns a vector of open sockets.
-    async fn scan_ports(&self, ports: &[u16]) -> Vec<SocketAddr> {
        let mut ftrs = FuturesUnordered::new();
-        for port in ports {
-            for ip in &self.ips {
-                ftrs.push(self.scan_socket(SocketAddr::new(*ip, *port)));
+        let mut errors: HashSet<String> = HashSet::with_capacity(self.ips.len() * 1000);
+
+        for _ in 0..self.batch_size {
+            if let Some(socket) = socket_iterator.next() {
+                ftrs.push(self.scan_socket(socket));
+            } else {
+                break;
            }
        }

-        let mut open_sockets: Vec<SocketAddr> = Vec::new();
+        debug!("Start scanning sockets. \nBatch size {}\nNumber of ip-s {}\nNumber of ports {}\nTargets all together {} ", 
+            self.batch_size,
+            self.ips.len(),
+            &ports.len(),
+            (self.ips.len() * ports.len()));
+
        while let Some(result) = ftrs.next().await {
+            if let Some(socket) = socket_iterator.next() {
+                ftrs.push(self.scan_socket(socket));
+            }
+
            match result {
                Ok(socket) => open_sockets.push(socket),
-                _ => {}
+                Err(e) => {
+                    let error_string = e.to_string();
+                    if errors.len() < self.ips.len() * 1000 {
+                        errors.insert(error_string);
+                    }
+                }
            }
        }
-
+        debug!("Typical socket connection errors {:?}", errors);
+        debug!("Open Sockets found: {:?}", &open_sockets);
        open_sockets
    }

-    /// Given a port, scan it.
+    /// Given a socket, scan it self.tries times.
    /// Turns the address into a SocketAddr
    /// Deals with the <result> type
    /// If it experiences error ErrorKind::Other then too many files are open and it Panics!
-    /// ese any other error, it returns the error in Result as a string
-    /// If no  errors occur, it returns the port number in Result to signify the port is open.
+    /// Else any other error, it returns the error in Result as a string
+    /// If no errors occur, it returns the port number in Result to signify the port is open.
    /// This function mainly deals with the logic of Results handling.
    /// # Example
    ///
-    ///     self.scan_port(10:u16)
+    ///     self.scan_socket(socket)
    ///
    /// Note: `self` must contain `self.ip`.
    async fn scan_socket(&self, socket: SocketAddr) -> io::Result<SocketAddr> {
-        match self.connect(socket).await {
-            Ok(x) => {
-                // match stream_result.shutdown(Shutdown::Both)
-                info!("Shutting down stream");
-                match x.shutdown(Shutdown::Both) {
-                    _ => {}
-                }
-                if !self.quiet {
-                    println!("Open {}", socket.to_string().purple());
-                }
+        let tries = self.tries.get();

-                Ok(socket)
-            }
-            Err(e) => match e.kind() {
-                ErrorKind::Other => {
-                    panic!("Too many open files. Please reduce batch size. The default is 5000. Try -b 2500.");
+        for nr_try in 1..=tries {
+            match self.connect(socket).await {
+                Ok(x) => {
+                    debug!(
+                        "Connection was successful, shutting down stream {}",
+                        &socket
+                    );
+                    if let Err(e) = x.shutdown(Shutdown::Both) {
+                        debug!("Shutdown stream error {}", &e);
+                    }
+                    if !self.greppable {
+                        if self.accessible {
+                            println!("Open {}", socket.to_string());
+                        } else {
+                            println!("Open {}", socket.to_string().purple());
+                        }
+                    }
+
+                    debug!("Return Ok after {} tries", nr_try);
+                    return Ok(socket);
                }
-                _ => Err(io::Error::new(io::ErrorKind::Other, e.to_string())),
-            },
+                Err(e) => {
+                    let mut error_string = e.to_string();
+
+                    if error_string.to_lowercase().contains("too many open files") {
+                        panic!("Too many open files. Please reduce batch size. The default is 5000. Try -b 2500.");
+                    }
+
+                    if nr_try == tries {
+                        error_string.push(' ');
+                        error_string.push_str(&socket.ip().to_string());
+                        return Err(io::Error::new(io::ErrorKind::Other, error_string));
+                    }
+                }
+            };
        }
+        unreachable!();
    }

    /// Performs the connection to the socket with timeout
@@ -151,8 +188,16 @@ mod tests {
            start: 1,
            end: 1_000,
        };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
-        let scanner = Scanner::new(&addrs, 10, Duration::from_millis(100), true, strategy);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
+        let scanner = Scanner::new(
+            &addrs,
+            10,
+            Duration::from_millis(100),
+            1,
+            true,
+            strategy,
+            true,
+        );
        block_on(scanner.run());
        // if the scan fails, it wouldn't be able to assert_eq! as it panicked!
        assert_eq!(1, 1);
@@ -165,8 +210,16 @@ mod tests {
            start: 1,
            end: 1_000,
        };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
-        let scanner = Scanner::new(&addrs, 10, Duration::from_millis(100), true, strategy);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
+        let scanner = Scanner::new(
+            &addrs,
+            10,
+            Duration::from_millis(100),
+            1,
+            true,
+            strategy,
+            true,
+        );
        block_on(scanner.run());
        // if the scan fails, it wouldn't be able to assert_eq! as it panicked!
        assert_eq!(1, 1);
@@ -178,8 +231,16 @@ mod tests {
            start: 1,
            end: 1_000,
        };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
-        let scanner = Scanner::new(&addrs, 10, Duration::from_millis(100), true, strategy);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
+        let scanner = Scanner::new(
+            &addrs,
+            10,
+            Duration::from_millis(100),
+            1,
+            true,
+            strategy,
+            true,
+        );
        block_on(scanner.run());
        assert_eq!(1, 1);
    }
@@ -190,8 +251,16 @@ mod tests {
            start: 400,
            end: 445,
        };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
-        let scanner = Scanner::new(&addrs, 10, Duration::from_millis(100), true, strategy);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
+        let scanner = Scanner::new(
+            &addrs,
+            10,
+            Duration::from_millis(100),
+            1,
+            true,
+            strategy,
+            true,
+        );
        block_on(scanner.run());
        assert_eq!(1, 1);
    }
@@ -205,8 +274,16 @@ mod tests {
            start: 400,
            end: 600,
        };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
-        let scanner = Scanner::new(&addrs, 10, Duration::from_millis(100), true, strategy);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
+        let scanner = Scanner::new(
+            &addrs,
+            10,
+            Duration::from_millis(100),
+            1,
+            true,
+            strategy,
+            true,
+        );
        block_on(scanner.run());
        assert_eq!(1, 1);
    }
@@ -0,0 +1,75 @@
+use itertools::{iproduct, Product};
+use std::net::{IpAddr, SocketAddr};
+
+pub struct SocketIterator<'s> {
+    // product_it is a cartesian product iterator over
+    // the slices of ports and IP addresses.
+    //
+    // The IP/port order is intentionally reversed here since we want
+    // the itertools::iproduct! macro below to generate the pairs with
+    // all the IPs for one port before moving on to the next one
+    // ("hold the port, go through all the IPs, then advance the port...").
+    // See also the comments in the iterator implementation for an example.
+    product_it:
+        Product<Box<std::slice::Iter<'s, u16>>, Box<std::slice::Iter<'s, std::net::IpAddr>>>,
+}
+
+/// An iterator that receives a slice of IPs and ports and returns a Socket
+/// for each IP and port pair until all of these combinations are exhausted.
+/// The goal of this iterator is to go over every IP and port combination
+/// wihout generating a big memory footprint. The alternative would be
+/// generating a vector containing all these combinations.
+impl<'s> SocketIterator<'s> {
+    pub fn new(ips: &'s [IpAddr], ports: &'s [u16]) -> Self {
+        let ports_it = Box::new(ports.iter());
+        let ips_it = Box::new(ips.iter());
+        Self {
+            product_it: iproduct!(ports_it, ips_it),
+        }
+    }
+}
+
+impl<'s> Iterator for SocketIterator<'s> {
+    type Item = SocketAddr;
+
+    /// Returns a socket based on the combination of one of the provided
+    /// IPs and ports or None when these combinations are exhausted. Every
+    /// IP will have the same port until a port is incremented.
+    ///
+    /// let it = SocketIterator::new(&["127.0.0.1", "192.168.0.1"], &[80, 443]);
+    /// it.next(); // 127.0.0.1:80
+    /// it.next(); // 192.168.0.1:80
+    /// it.next(); // 127.0.0.1:443
+    /// it.next(); // 192.168.0.1:443
+    /// it.next(); // None
+    fn next(&mut self) -> Option<Self::Item> {
+        match self.product_it.next() {
+            None => None,
+            Some((port, ip)) => Some(SocketAddr::new(*ip, *port)),
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::SocketIterator;
+    use std::net::{IpAddr, SocketAddr};
+
+    #[test]
+    fn goes_through_every_ip_port_combination() {
+        let addrs = vec![
+            "127.0.0.1".parse::<IpAddr>().unwrap(),
+            "192.168.0.1".parse::<IpAddr>().unwrap(),
+        ];
+        let ports: Vec<u16> = vec![22, 80, 443];
+        let mut it = SocketIterator::new(&addrs, &ports);
+
+        assert_eq!(Some(SocketAddr::new(addrs[0], ports[0])), it.next());
+        assert_eq!(Some(SocketAddr::new(addrs[1], ports[0])), it.next());
+        assert_eq!(Some(SocketAddr::new(addrs[0], ports[1])), it.next());
+        assert_eq!(Some(SocketAddr::new(addrs[1], ports[1])), it.next());
+        assert_eq!(Some(SocketAddr::new(addrs[0], ports[2])), it.next());
+        assert_eq!(Some(SocketAddr::new(addrs[1], ports[2])), it.next());
+        assert_eq!(None, it.next());
+    }
+}
@@ -0,0 +1,466 @@
+//! Scripting engine to run scripts based on tags.
+//! This module serves to filter and run the scripts selected by the user.
+//!
+//! A new commandline and configuration file option was added.
+//!
+//! --scripts
+//!
+//!      default
+//!          This is the default behavior, like as it was from the beginning of RustScan.
+//!          The user do not have to chose anything for this. This is the only script embedded in RustScan running as default.
+//!
+//!      none
+//!          The user have to use the --scripts none commandline argument or scripts = "none" in the config file.
+//!          None of the scripts will run, this replaces the removed --no-nmap option.
+//!
+//!      custom
+//!          The user have to use the --scripts custom commandline argument or scripts = "custom" in the config file.
+//!          Rustscan will look for the script configuration file in the user's home dir: home_dir/.rustscan_scripts.toml
+//!          The config file have 3 optional fields, tag, developer and port. Just the tag field will be used forther in the process.
+//!          RustScan will also look for available scripts in the user's home dir: home_dir/.rustscan_scripts
+//!          and will try to read all the files, and parse them into a vector of ScriptFiles.
+//!          Filtering on tags means the tags found in the rustscan_scripts.toml file will also have to be present in the Scriptfile,
+//!          otherwise the script will not be selected.
+//!          All of the rustscan_script.toml tags have to be present at minimum in a Scriptfile to get selected, but can be also more.
+//!
+//! Config file example:
+//! fixtures/test_rustscan_scripts.toml
+//!
+//! Script file examples:
+//! fixtures/test_script.py
+//! fixtures/test_script.pl
+//! fixtures/test_script.sh
+//! fixtures/test_script.txt
+//!
+//! call_format in script files can be of 2 variants.
+//! One is where all of the possible tags {{script}} {{ip}} {{port}} are there.
+//!     The {{script}} part will be replaced with the scriptfile full path gathered while parsing available scripts.
+//!     The {{ip}} part will be replaced with the ip we got from the scan.
+//!     The {{port}} part will be reaplced with the ports separated with the ports_separator found in the script file
+//!
+//! And when there is only {{ip}} and {{port}} is in the format, ony those will be replaced with the arguments from the scan.
+//! This makes it easy to run a system installed command like nmap, and give any kind of arguments to it.
+//!
+//! If the format is different, the script will be silently discarded and will not run. With the Debug option it's possible to see where it goes wrong.
+
+#![allow(clippy::module_name_repetitions)]
+
+use crate::input::ScriptsRequired;
+use anyhow::{anyhow, Result};
+use serde_derive::{Deserialize, Serialize};
+use std::collections::HashSet;
+use std::convert::TryInto;
+use std::fs::{self, File};
+use std::io::{self, prelude::*};
+use std::net::IpAddr;
+use std::path::PathBuf;
+use std::string::ToString;
+use subprocess::{Exec, ExitStatus};
+use text_placeholder::Template;
+
+static DEFAULT: &str = r#"tags = ["core_approved", "RustScan", "default"]
+developer = [ "RustScan", "https://github.com/RustScan" ]
+ports_separator = ","
+call_format = "nmap -vvv -p {{port}} {{ip}}"
+"#;
+
+#[cfg(not(tarpaulin_include))]
+pub fn init_scripts(scripts: ScriptsRequired) -> Result<Vec<ScriptFile>> {
+    let mut scripts_to_run: Vec<ScriptFile> = Vec::new();
+
+    match scripts {
+        ScriptsRequired::None => Ok(scripts_to_run),
+        ScriptsRequired::Default => {
+            let default_script =
+                toml::from_str::<ScriptFile>(&DEFAULT).expect("Failed to parse Script file.");
+            scripts_to_run.push(default_script);
+            Ok(scripts_to_run)
+        }
+        ScriptsRequired::Custom => {
+            let scripts_dir_base = match dirs::home_dir() {
+                Some(dir) => dir,
+                None => return Err(anyhow!("Could not infer scripts path.")),
+            };
+            let script_paths = match find_scripts(scripts_dir_base) {
+                Ok(script_paths) => script_paths,
+                Err(e) => return Err(anyhow!(e)),
+            };
+            debug!("Scripts paths \n{:?}", script_paths);
+
+            let parsed_scripts = parse_scripts(script_paths);
+            debug!("Scripts parsed \n{:?}", parsed_scripts);
+
+            let script_config = match ScriptConfig::read_config() {
+                Ok(script_config) => script_config,
+                Err(e) => return Err(anyhow!(e)),
+            };
+            debug!("Script config \n{:?}", script_config);
+
+            // Only Scripts that contain all the tags found in ScriptConfig will be selected.
+            if script_config.tags.is_some() {
+                let config_hashset: HashSet<String> =
+                    script_config.tags.unwrap().into_iter().collect();
+                for script in &parsed_scripts {
+                    if script.tags.is_some() {
+                        let script_hashset: HashSet<String> =
+                            script.tags.clone().unwrap().into_iter().collect();
+                        if config_hashset.is_subset(&script_hashset) {
+                            scripts_to_run.push(script.to_owned());
+                        } else {
+                            debug!(
+                                "\nScript tags does not match config tags {:?} {}",
+                                &script_hashset,
+                                script.path.clone().unwrap().display()
+                            );
+                        }
+                    }
+                }
+            }
+            debug!("\nScript(s) to run {:?}", scripts_to_run);
+            Ok(scripts_to_run)
+        }
+    }
+}
+
+pub fn parse_scripts(scripts: Vec<PathBuf>) -> Vec<ScriptFile> {
+    let mut parsed_scripts: Vec<ScriptFile> = Vec::with_capacity(scripts.len());
+    for script in scripts {
+        debug!("Parsing script {}", &script.display());
+        if let Some(script_file) = ScriptFile::new(script) {
+            parsed_scripts.push(script_file);
+        }
+    }
+    parsed_scripts
+}
+
+#[derive(Clone, Debug)]
+pub struct Script {
+    // Path to the script itself.
+    path: Option<PathBuf>,
+
+    // Ip got from scanner.
+    ip: IpAddr,
+
+    // Ports found with portscan.
+    open_ports: Vec<u16>,
+
+    // Port found in ScriptFile, if defined only this will run with the ip.
+    trigger_port: Option<String>,
+
+    // Character to join ports in case we want to use a string format of them, for example nmap -p.
+    ports_separator: Option<String>,
+
+    // Tags found in ScriptFile.
+    tags: Option<Vec<String>>,
+
+    // The format how we want the script to run.
+    call_format: Option<String>,
+}
+
+#[derive(Serialize)]
+struct ExecPartsScript {
+    script: String,
+    ip: String,
+    port: String,
+}
+
+#[derive(Serialize)]
+struct ExecParts {
+    ip: String,
+    port: String,
+}
+
+impl Script {
+    pub fn build(
+        path: Option<PathBuf>,
+        ip: IpAddr,
+        open_ports: Vec<u16>,
+        trigger_port: Option<String>,
+        ports_separator: Option<String>,
+        tags: Option<Vec<String>>,
+        call_format: Option<String>,
+    ) -> Self {
+        Self {
+            path,
+            ip,
+            open_ports,
+            trigger_port,
+            ports_separator,
+            tags,
+            call_format,
+        }
+    }
+
+    // Some variables get changed before read, and compiler throws warning on warn(unused_assignments)
+    #[allow(unused_assignments)]
+    pub fn run(self) -> Result<String> {
+        debug!("run self {:?}", &self);
+
+        let separator = self.ports_separator.unwrap_or_else(|| ",".into());
+
+        let mut ports_str = self
+            .open_ports
+            .iter()
+            .map(ToString::to_string)
+            .collect::<Vec<String>>()
+            .join(&separator);
+        if let Some(port) = self.trigger_port {
+            ports_str = port;
+        }
+
+        let mut final_call_format = String::new();
+        if let Some(call_format) = self.call_format {
+            final_call_format = call_format;
+        } else {
+            return Err(anyhow!("Failed to parse execution format."));
+        }
+        let default_template: Template = Template::new(&final_call_format);
+        let mut to_run = String::new();
+
+        if final_call_format.contains("{{script}}") {
+            let exec_parts_script: ExecPartsScript = ExecPartsScript {
+                script: self.path.unwrap().to_str().unwrap().to_string(),
+                ip: self.ip.to_string(),
+                port: ports_str,
+            };
+            to_run = default_template.fill_with_struct(&exec_parts_script)?;
+        } else {
+            let exec_parts: ExecParts = ExecParts {
+                ip: self.ip.to_string(),
+                port: ports_str,
+            };
+            to_run = default_template.fill_with_struct(&exec_parts)?;
+        }
+        debug!("\nScript format to run {}", to_run);
+
+        let arguments = shell_words::split(&to_run).expect("Failed to parse script arguments");
+
+        execute_script(arguments)
+    }
+}
+
+#[cfg(not(tarpaulin_include))]
+fn execute_script(mut arguments: Vec<String>) -> Result<String> {
+    debug!("\nScript arguments vec: {:?}", &arguments);
+    let process = Exec::cmd(&arguments.remove(0)).args(&arguments);
+    match process.capture() {
+        Ok(c) => {
+            let es = match c.exit_status {
+                ExitStatus::Exited(c) => c.try_into().unwrap(),
+                ExitStatus::Signaled(c) => c.into(),
+                ExitStatus::Other(c) => c,
+                ExitStatus::Undetermined => -1,
+            };
+            if es != 0 {
+                return Err(anyhow!("Exit code = {}", es));
+            }
+            Ok(c.stdout_str())
+        }
+        Err(error) => {
+            debug!("Command error {}", error.to_string());
+            Err(anyhow!(error.to_string()))
+        }
+    }
+}
+
+pub fn find_scripts(mut path: PathBuf) -> Result<Vec<PathBuf>> {
+    path.push(".rustscan_scripts");
+    if path.is_dir() {
+        debug!("Scripts folder found {}", &path.display());
+        let mut files_vec: Vec<PathBuf> = Vec::new();
+        for entry in fs::read_dir(path)? {
+            let entry = entry?;
+            files_vec.push(entry.path());
+        }
+        Ok(files_vec)
+    } else {
+        Err(anyhow!("Can't find scripts folder {}", path.display()))
+    }
+}
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct ScriptFile {
+    pub path: Option<PathBuf>,
+    pub tags: Option<Vec<String>>,
+    pub developer: Option<Vec<String>>,
+    pub port: Option<String>,
+    pub ports_separator: Option<String>,
+    pub call_format: Option<String>,
+}
+
+impl ScriptFile {
+    fn new(script: PathBuf) -> Option<ScriptFile> {
+        let real_path = script.clone();
+        let mut lines_buf = String::new();
+        if let Ok(file) = File::open(script) {
+            for line in io::BufReader::new(file).lines().skip(1) {
+                if let Ok(mut line) = line {
+                    if line.starts_with('#') {
+                        line.retain(|c| c != '#');
+                        line = line.trim().to_string();
+                        line.push('\n');
+                        lines_buf.push_str(&line);
+                    } else {
+                        break;
+                    }
+                }
+            }
+        } else {
+            debug!("Failed to read file: {}", &real_path.display());
+            return None;
+        }
+        debug!("ScriptFile {} lines\n{}", &real_path.display(), &lines_buf);
+
+        match toml::from_str::<ScriptFile>(&lines_buf) {
+            Ok(mut parsed) => {
+                debug!("Parsed ScriptFile{} \n{:?}", &real_path.display(), &parsed);
+                parsed.path = Some(real_path);
+                // parsed_scripts.push(parsed);
+                Some(parsed)
+            }
+            Err(e) => {
+                debug!("Failed to parse ScriptFile headers {}", e.to_string());
+                None
+            }
+        }
+    }
+}
+
+#[derive(Debug, Deserialize, Clone)]
+pub struct ScriptConfig {
+    pub tags: Option<Vec<String>>,
+    pub ports: Option<Vec<String>>,
+    pub developer: Option<Vec<String>>,
+}
+
+#[cfg(not(tarpaulin_include))]
+impl ScriptConfig {
+    pub fn read_config() -> Result<ScriptConfig> {
+        let mut home_dir = match dirs::home_dir() {
+            Some(dir) => dir,
+            None => return Err(anyhow!("Could not infer ScriptConfig path.")),
+        };
+        home_dir.push(".rustscan_scripts.toml");
+
+        let content = fs::read_to_string(home_dir)?;
+        let config = toml::from_str::<ScriptConfig>(&content)?;
+        Ok(config)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{find_scripts, parse_scripts, Script, ScriptFile};
+
+    // Function for testing only, it inserts static values into ip and open_ports
+    // Doesn't use impl in case it's implemented in the super module at some point
+    fn into_script(script_f: ScriptFile) -> Script {
+        Script::build(
+            script_f.path,
+            "127.0.0.1".parse().unwrap(),
+            vec![80, 8080],
+            script_f.port,
+            script_f.ports_separator,
+            script_f.tags,
+            script_f.call_format,
+        )
+    }
+
+    #[test]
+    fn find_and_parse_scripts() {
+        let scripts = find_scripts("fixtures/".into()).unwrap();
+        let scripts = parse_scripts(scripts);
+        assert_eq!(scripts.len(), 4);
+    }
+
+    #[test]
+    #[should_panic]
+    fn find_invalid_folder() {
+        let _scripts = find_scripts("Cargo.toml".into()).unwrap();
+    }
+
+    #[test]
+    #[should_panic]
+    fn open_script_file_invalid_headers() {
+        ScriptFile::new("fixtures/.rustscan_scripts/test_script_invalid_headers.txt".into())
+            .unwrap();
+    }
+
+    #[test]
+    #[should_panic]
+    fn open_script_file_invalid_call_format() {
+        let mut script_f =
+            ScriptFile::new("fixtures/.rustscan_scripts/test_script.txt".into()).unwrap();
+        script_f.call_format = Some("qwertyuiop".to_string());
+        let script: Script = into_script(script_f);
+        let _output = script.run().unwrap();
+    }
+
+    #[test]
+    #[should_panic]
+    fn open_script_file_missing_call_format() {
+        let mut script_f =
+            ScriptFile::new("fixtures/.rustscan_scripts/test_script.txt".into()).unwrap();
+        script_f.call_format = None;
+        let script: Script = into_script(script_f);
+        let _output = script.run().unwrap();
+    }
+
+    #[test]
+    #[should_panic]
+    fn open_nonexisting_script_file() {
+        ScriptFile::new("qwertyuiop.txt".into()).unwrap();
+    }
+
+    #[test]
+    fn parse_txt_script() {
+        let script_f =
+            ScriptFile::new("fixtures/.rustscan_scripts/test_script.txt".into()).unwrap();
+        assert_eq!(
+            script_f.tags,
+            Some(vec!["core_approved".to_string(), "example".to_string()])
+        );
+        assert_eq!(
+            script_f.developer,
+            Some(vec![
+                "example".to_string(),
+                "https://example.org".to_string()
+            ])
+        );
+        assert_eq!(script_f.ports_separator, Some(",".to_string()));
+        assert_eq!(
+            script_f.call_format,
+            Some("nmap -vvv -p {{port}} {{ip}}".to_string())
+        );
+    }
+
+    #[test]
+    fn run_bash_script() {
+        let script_f = ScriptFile::new("fixtures/.rustscan_scripts/test_script.sh".into()).unwrap();
+        let script: Script = into_script(script_f);
+        let output = script.run().unwrap();
+        // output has a newline at the end by default, .trim() trims it
+        assert_eq!(output.trim(), "127.0.0.1 80,8080");
+    }
+
+    #[test]
+    fn run_python_script() {
+        let script_f = ScriptFile::new("fixtures/.rustscan_scripts/test_script.py".into()).unwrap();
+        let script: Script = into_script(script_f);
+        let output = script.run().unwrap();
+        // output has a newline at the end by default, .trim() trims it
+        assert_eq!(
+            output.trim(),
+            "Python script ran with arguments ['fixtures/.rustscan_scripts/test_script.py', '127.0.0.1', '80,8080']"
+        );
+    }
+
+    #[test]
+    fn run_perl_script() {
+        let script_f = ScriptFile::new("fixtures/.rustscan_scripts/test_script.pl".into()).unwrap();
+        let script: Script = into_script(script_f);
+        let output = script.run().unwrap();
+        // output has a newline at the end by default, .trim() trims it
+        assert_eq!(output.trim(), "Total args passed to fixtures/.rustscan_scripts/test_script.pl : 2\nArg # 1 : 127.0.0.1\nArg # 2 : 80,8080");
+    }
+}
@@ -7,11 +7,16 @@ macro_rules! warning {
        use ansi_term::Colour::Red;
        println!("{} {}", Red.bold().paint("[!]"), $name);
    };
-    // quiet mode
-    ($name:expr, $quiet:expr) => {
+    ($name:expr, $greppable:expr, $accessible:expr) => {
        use ansi_term::Colour::Red;
-        if !$quiet {
-            println!("{} {}", Red.bold().paint("[!]"), $name);
+        // if not greppable then print, otherwise no else statement so do not print.
+        if !$greppable {
+            if $accessible {
+                // Don't print the ascii art
+                println!("{}", $name);
+            } else {
+                println!("{} {}", Red.bold().paint("[!]"), $name);
+            }
        }
    };
 }
@@ -22,26 +27,38 @@ macro_rules! detail {
        use ansi_term::Colour::Blue;
        println!("{} {}", Blue.bold().paint("[~]"), $name);
    };
-    ($name:expr, $quiet:expr) => {
+    ($name:expr, $greppable:expr, $accessible:expr) => {
        use ansi_term::Colour::Blue;
-        if !$quiet {
-            println!("{} {}", Blue.bold().paint("[~]"), $name);
+        // if not greppable then print, otherwise no else statement so do not print.
+        if !$greppable {
+            if $accessible {
+                // Don't print the ascii art
+                println!("{}", $name);
+            } else {
+                println!("{} {}", Blue.bold().paint("[~]"), $name);
+            }
        }
    };
 }

 #[macro_export]
 macro_rules! output {
-    ($name:expr, $quiet:expr) => {
-        use ansi_term::Colour::RGB;
-        if !$quiet {
-            println!("{} {}", RGB(0, 255, 9).bold().paint("[>]"), $name);
-        }
-    };
    ($name:expr) => {
        use ansi_term::Colour::RGB;
        println!("{} {}", RGB(0, 255, 9).bold().paint("[>]"), $name);
    };
+    ($name:expr, $greppable:expr, $accessible:expr) => {
+        use ansi_term::Colour::RGB;
+        // if not greppable then print, otherwise no else statement so do not print.
+        if !$greppable {
+            if $accessible {
+                // Don't print the ascii art
+                println!("{}", $name);
+            } else {
+                println!("{} {}", RGB(0, 255, 9).bold().paint("[>]"), $name);
+            }
+        }
+    };
 }

 #[macro_export]
@@ -55,6 +72,7 @@ macro_rules! funny_opening {
            "Real hackers hack time ⌛",
            "Please contribute more quotes to our GitHub https://github.com/rustscan/rustscan",
            "😵 https://admin.tryhackme.com",
+            "0day was here ♥",
        ];
        let random_quote = quotes.choose(&mut rand::thread_rng()).unwrap();

@@ -0,0 +1,109 @@
+/*
+ * Test rustscan against different targets with a time limit.
+ * The tests assumes target/debug/rustscan has already been built.
+ *
+ * The tests are #[ignore] to avoid running them during normal development.
+ *
+ * Their tests in the timelimits module are run by travis during CI.
+ */
+
+use std::process::Command;
+use std::time::Duration;
+use wait_timeout::ChildExt;
+
+const TIMEOUT_MARGIN: u32 = 3;
+
+#[cfg(not(tarpaulin_include))]
+fn run_rustscan_with_timeout(args: &[&str], timeout: Duration) {
+    println!("Running: target/debug/rustscan: {}", args.join(" "));
+
+    use std::time::Instant;
+
+    let start = Instant::now();
+
+    let mut child = Command::new("target/debug/rustscan")
+        .args(args)
+        .spawn()
+        .unwrap();
+
+    let mut tries = TIMEOUT_MARGIN;
+    loop {
+        match child.wait_timeout(timeout).unwrap() {
+            Some(_status) => break,
+            None => {
+                tries -= 1;
+                if tries == 0 {
+                    // child hasn't exited yet
+                    child.kill().unwrap();
+                    child.wait().unwrap().code();
+                    panic!("Timeout while running command");
+                }
+            }
+        }
+    }
+    let end = Instant::now();
+    let duration = end.saturating_duration_since(start).as_secs_f32();
+
+    println!("time: {:1.1}s", duration);
+}
+
+mod timelimits {
+
+    #[test]
+    #[ignore]
+    fn scan_localhost() {
+        let timeout = super::Duration::from_secs(25);
+        super::run_rustscan_with_timeout(&["--greppable", "--no-nmap", "127.0.0.1"], timeout);
+    }
+
+    #[test]
+    #[ignore]
+    fn scan_google_com() {
+        super::run_rustscan_with_timeout(
+            &[
+                "--greppable",
+                "--no-nmap",
+                "-u",
+                "5000",
+                "-b",
+                "2500",
+                "google.com",
+            ],
+            super::Duration::from_secs(28),
+        );
+    }
+
+    #[test]
+    #[ignore]
+    fn scan_example_com() {
+        super::run_rustscan_with_timeout(
+            &[
+                "--greppable",
+                "--no-nmap",
+                "-u",
+                "5000",
+                "-b",
+                "2500",
+                "example.com",
+            ],
+            super::Duration::from_secs(28),
+        );
+    }
+
+    #[test]
+    #[ignore]
+    fn scan_rustscan_cmnatic_co_uk() {
+        super::run_rustscan_with_timeout(
+            &[
+                "--greppable",
+                "--no-nmap",
+                "-u",
+                "5000",
+                "-b",
+                "2500",
+                "rustscan.cmnatic.co.uk",
+            ],
+            super::Duration::from_secs(26),
+        );
+    }
+}