2.1.0 release

added a quote

.github/workflows/basic.yml

@@ -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
@@ -46,25 +46,3 @@ jobs:
         with:
           command: fmt
           args: --all -- --check
-
-  clippy:
-    name: Clippy linting
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-            components: clippy
-            override: true
-      - uses: actions-rs/clippy-check@v1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          args: --all-features
-
-  links:
-        name: markdown-link-check
-        runs-on: ubuntu-latest
-        steps:
-        - uses: actions/checkout@master
-        - uses: gaurav-nelson/github-action-markdown-link-check@v1

.github/workflows/bump.yml

@@ -1,15 +0,0 @@
-on:
-  push:
-    tags: '*'
-
-jobs:
-  homebrew:
-    name: Bump Homebrew formula
-    runs-on: ubuntu-latest
-    steps:
-      - uses: mislav/bump-homebrew-formula-action@v1
-        with:
-          # A PR will be sent to github.com/Homebrew/homebrew-core to update this formula:
-          formula-name: rustscan
-        env:
-          COMMITTER_TOKEN: ${{secrets.brew}}

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rustscan"
-version = "1.10.0"
+version = "2.1.0"
 authors = ["Bee <[email protected]>"]
 edition = "2018"
 description = "Faster Nmap Scanning with Rust"
@@ -19,24 +19,24 @@ exclude = [
 [dependencies]
 colored = "2.0.0"
 structopt = "0.3.20"
-async-std = "1.6.4"
+async-std = "1.7.0"
 futures = "0.3"
-rlimit = "0.5.2"
+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 = "0.5.7"
-serde = "1.0.117"
+serde = "1.0.124"
 serde_derive = "1.0.116"
-cidr-utils = "0.5.0"
+cidr-utils = "0.5.1"
 itertools = "0.9.0"
 trust-dns-resolver = { version = "0.19.5", features = ["dns-over-rustls"] }
-anyhow = "1.0.33"
+anyhow = "1.0.40"
 subprocess = "0.2.6"
 text_placeholder = { version = "0.4", features = ["struct_context"] }
 

README.md

@@ -1,6 +1,6 @@
 <p align="center">
 ➡️
-<a href="https://discord.gg/GFrQsGy">Discord</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>
  ⬅️
@@ -15,7 +15,7 @@
 <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>
@@ -29,6 +29,8 @@
 
 # 🤔 What is this?
 
+![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
@@ -43,13 +45,13 @@ The Modern Port Scanner. **Find ports quickly (3 seconds at its fastest)**. Run
 
 | 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](https://discord.gg/GFrQsGy)
+- 🦜 [Discord](http://discord.skerritt.blog)
 - 🤸 [Usage](https://github.com/RustScan/RustScan/wiki/Usage)
 - 🎪 [Community](https://github.com/RustScan/RustScan#-community)
 
@@ -59,22 +61,28 @@ RustScan is a modern take on the port scanner. Sleek & fast. All while providing
 
 Not to mention RustScan uses Adaptive Learning to improve itself over time, making it the best port scanner for **you**.
 
-## Speed
+## 🧋 Speed
 
-Speed is guranteed via RustScan. However, if you want to run a slow scan that stealth reasons that is possible too.
+![fast](pictures/fast.gif)
+
+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 lower than the previous version. If it is, the continuous integration fails and we can't commit code to master unless we make it faster.
+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 effect performance negatively.
+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.
@@ -85,15 +93,21 @@ The possibilities are endless -- and you can write scripts in whatever language
 
 ## 🌊 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 effects the whole industry.
+[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.
 
@@ -116,7 +130,7 @@ If you maintain a community distribution and want it listed here, leave an issue
 
 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 on our config file [here](https://github.com/RustScan/RustScan/wiki/Config-File).
+We also have documentation about our config file [here](https://github.com/RustScan/RustScan/wiki/Config-File).
 
 # 🎪 Community
 

contributing.Dockerfile

@@ -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

contributing.md

@@ -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 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)
+
+- 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
+```

pictures/accessible.yml

@@ -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"

src/input.rs

@@ -10,7 +10,7 @@ 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,
@@ -41,7 +41,7 @@ pub struct PortRange {
 fn parse_range(input: &str) -> Result<PortRange, String> {
     let range = input
         .split('-')
-        .map(|x| x.parse::<u16>())
+        .map(str::parse)
         .collect::<Result<Vec<u16>, std::num::ParseIntError>>();
 
     if range.is_err() {
@@ -63,6 +63,7 @@ fn parse_range(input: &str) -> Result<PortRange, String> {
 
 #[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.
@@ -129,7 +130,7 @@ pub struct Opts {
 
     /// 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)]

src/main.rs

@@ -1,3 +1,7 @@
+#![deny(clippy::all)]
+#![warn(clippy::pedantic)]
+#![allow(clippy::doc_markdown, clippy::if_not_else, clippy::non_ascii_literal)]
+
 extern crate shell_words;
 
 mod tui;
@@ -22,12 +26,17 @@ use colorful::{Color, Colorful};
 use futures::executor::block_on;
 use rlimit::{getrlimit, setrlimit, RawRlim, Resource, Rlim};
 use std::collections::HashMap;
+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::*, Resolver};
+use trust_dns_resolver::{
+    config::{ResolverConfig, ResolverOpts},
+    Resolver,
+};
 
 extern crate colorful;
 extern crate dirs;
@@ -41,6 +50,7 @@ const AVERAGE_BATCH_SIZE: RawRlim = 3000;
 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() {
@@ -54,8 +64,18 @@ fn main() {
 
     debug!("Main() `opts` arguments are {:?}", opts);
 
-    let scripts_to_run: Vec<ScriptFile> =
-        init_scripts(opts.scripts).expect("could not initiate scripting part.");
+    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 {
@@ -82,7 +102,7 @@ fn main() {
         Duration::from_millis(opts.timeout.into()),
         opts.tries,
         opts.greppable,
-        PortStrategy::pick(opts.range, opts.ports, opts.scan_order),
+        PortStrategy::pick(&opts.range, opts.ports, opts.scan_order),
         opts.accessible,
     );
     debug!("Scanner finished building: {:?}", scanner);
@@ -114,13 +134,13 @@ fn main() {
         \n Alternatively, increase the timeout if your ping is high. Rustscan -t 2000 for 2000 milliseconds (2s) timeout.\n",
         ip,
         opts.batch_size,
-        "'rustscan -b <batch_size> <ip address>'");
+        "'rustscan -b <batch_size> -a <ip address>'");
         warning!(x, opts.greppable, opts.accessible);
     }
 
     let mut script_bench = NamedTimer::start("Scripts");
-    for (ip, ports) in ports_per_ip.iter_mut() {
-        let vec_str_ports: Vec<String> = ports.iter().map(|port| port.to_string()).collect();
+    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 = vec_str_ports.join(",");
@@ -134,19 +154,20 @@ fn main() {
 
         // 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() {
-            output!(
-                format!("Script to be run {:?}\n", script_f.call_format,),
-                opts.greppable,
-                opts.accessible
-            );
-
             // 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: Vec<String> = shell_words::split(&opts.command.join(" "))
-                    .expect("Failed to parse extra user commandline arguments");
+                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_str(&format!(" {}", &user_extra_args.join(" ")));
+                    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);
                 }
             }
@@ -155,7 +176,7 @@ fn main() {
             let script = Script::build(
                 script_f.path,
                 *ip,
-                ports.to_vec(),
+                ports.clone(),
                 script_f.port,
                 script_f.ports_separator,
                 script_f.tags,
@@ -166,11 +187,7 @@ fn main() {
                     detail!(script_result.to_string(), opts.greppable, opts.accessible);
                 }
                 Err(e) => {
-                    warning!(
-                        &format!("Error {}", e.to_string()),
-                        opts.greppable,
-                        opts.accessible
-                    );
+                    warning!(&format!("Error {}", e), opts.greppable, opts.accessible);
                 }
             }
         }
@@ -217,11 +234,11 @@ The Modern Day Port Scanner."#;
 fn parse_addresses(input: &Opts) -> Vec<IpAddr> {
     let mut ips: Vec<IpAddr> = Vec::new();
     let mut unresolved_addresses: Vec<&str> = Vec::new();
-    let resolver =
-        &Resolver::new(ResolverConfig::cloudflare_tls(), ResolverOpts::default()).unwrap();
+    let backup_resolver =
+        Resolver::new(ResolverConfig::cloudflare_tls(), ResolverOpts::default()).unwrap();
 
     for address in &input.addresses {
-        let parsed_ips = parse_address(address, resolver);
+        let parsed_ips = parse_address(address, &backup_resolver);
         if !parsed_ips.is_empty() {
             ips.extend(parsed_ips);
         } else {
@@ -243,7 +260,7 @@ fn parse_addresses(input: &Opts) -> Vec<IpAddr> {
             continue;
         }
 
-        if let Ok(x) = read_ips_from_file(file_path, &resolver) {
+        if let Ok(x) = read_ips_from_file(file_path, &backup_resolver) {
             ips.extend(x);
         } else {
             warning!(
@@ -274,18 +291,25 @@ fn parse_address(address: &str, resolver: &Resolver) -> Vec<IpAddr> {
 }
 
 /// Uses DNS to get the IPS assiocated with host
-fn resolve_ips_from_host(source: &str, resolver: &Resolver) -> Vec<IpAddr> {
-    resolver
-        .lookup_ip(source)
-        .map(|x| x.iter().collect())
-        .unwrap_or_default()
+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,
-    resolver: &Resolver,
+    backup_resolver: &Resolver,
 ) -> Result<Vec<std::net::IpAddr>, std::io::Error> {
     let file = File::open(ips)?;
     let reader = BufReader::new(file);
@@ -294,7 +318,7 @@ fn read_ips_from_file(
 
     for address_line in reader.lines() {
         if let Ok(address) = address_line {
-            ips.extend(parse_address(&address, resolver));
+            ips.extend(parse_address(&address, backup_resolver));
         } else {
             debug!("Line in file is not valid");
         }
@@ -307,21 +331,18 @@ fn adjust_ulimit_size(opts: &Opts) -> RawRlim {
     if opts.ulimit.is_some() {
         let limit: Rlim = Rlim::from_raw(opts.ulimit.unwrap());
 
-        match setrlimit(Resource::NOFILE, limit, limit) {
-            Ok(_) => {
-                detail!(
-                    format!("Automatically increasing ulimit value to {}.", limit),
-                    opts.greppable,
-                    opts.accessible
-                );
-            }
-            Err(_) => {
-                warning!(
-                    "ERROR. Failed to set ulimit value.",
-                    opts.greppable,
-                    opts.accessible
-                );
-            }
+        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
+            );
         }
     }
 
@@ -348,12 +369,12 @@ fn infer_batch_size(opts: &Opts, ulimit: RawRlim) -> u16 {
             // 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'. ", 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
@@ -363,7 +384,9 @@ fn infer_batch_size(opts: &Opts, ulimit: RawRlim) -> u16 {
         opts.greppable, opts.accessible);
     }
 
-    batch_size as u16
+    batch_size
+        .try_into()
+        .expect("Couldn't fit the batch size into a u16.")
 }
 
 #[cfg(test)]
@@ -414,8 +437,8 @@ mod tests {
         opts.ulimit = Some(2_000);
         // print opening should not panic
         print_opening(&opts);
-        assert!(1 == 1);
     }
+
     #[test]
     fn test_high_ulimit_no_greppable_mode() {
         let mut opts = Opts::default();

src/port_strategy/mod.rs

@@ -16,7 +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();
@@ -102,7 +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);
@@ -110,7 +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);
@@ -121,14 +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);

src/port_strategy/range_iterator.rs

@@ -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"),
+        )
     }
 }
 

src/scanner/mod.rs

@@ -6,10 +6,10 @@ 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::{
-    io::ErrorKind,
+    collections::HashSet,
     net::{IpAddr, Shutdown, SocketAddr},
     num::NonZeroU8,
     time::Duration,
@@ -49,7 +49,7 @@ impl Scanner {
             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,
         }
     }
@@ -62,6 +62,7 @@ impl Scanner {
         let mut socket_iterator: SocketIterator = SocketIterator::new(&self.ips, &ports);
         let mut open_sockets: Vec<SocketAddr> = Vec::new();
         let mut ftrs = FuturesUnordered::new();
+        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() {
@@ -82,10 +83,17 @@ impl Scanner {
                 ftrs.push(self.scan_socket(socket));
             }
 
-            if let Ok(socket) = result {
-                open_sockets.push(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
     }
@@ -127,19 +135,15 @@ impl Scanner {
                     return Ok(socket);
                 }
                 Err(e) => {
-                    let error_string = e.to_string();
+                    let mut error_string = e.to_string();
 
-                    if e.kind() == ErrorKind::Other {
-                        debug!("Socket connect error: {} {}", &error_string, &socket);
-
-                        if !error_string.contains("No route to host")
-                            && !error_string.contains("Network is unreachable")
-                        {
-                            panic!("Too many open files. Please reduce batch size. The default is 5000. Try -b 2500.");
-                        }
+                    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));
                     }
                 }
@@ -184,7 +188,7 @@ mod tests {
             start: 1,
             end: 1_000,
         };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
         let scanner = Scanner::new(
             &addrs,
             10,
@@ -206,7 +210,7 @@ mod tests {
             start: 1,
             end: 1_000,
         };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
         let scanner = Scanner::new(
             &addrs,
             10,
@@ -227,7 +231,7 @@ mod tests {
             start: 1,
             end: 1_000,
         };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
         let scanner = Scanner::new(
             &addrs,
             10,
@@ -247,7 +251,7 @@ mod tests {
             start: 400,
             end: 445,
         };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
         let scanner = Scanner::new(
             &addrs,
             10,
@@ -270,7 +274,7 @@ mod tests {
             start: 400,
             end: 600,
         };
-        let strategy = PortStrategy::pick(Some(range), None, ScanOrder::Random);
+        let strategy = PortStrategy::pick(&Some(range), None, ScanOrder::Random);
         let scanner = Scanner::new(
             &addrs,
             10,

src/scripts/mod.rs

@@ -43,14 +43,18 @@
 //!
 //! 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;
 
@@ -197,7 +201,7 @@ impl Script {
         let mut ports_str = self
             .open_ports
             .iter()
-            .map(|port| port.to_string())
+            .map(ToString::to_string)
             .collect::<Vec<String>>()
             .join(&separator);
         if let Some(port) = self.trigger_port {
@@ -227,17 +231,9 @@ impl Script {
             };
             to_run = default_template.fill_with_struct(&exec_parts)?;
         }
+        debug!("\nScript format to run {}", to_run);
 
-        debug!("\nTo run {}", to_run);
-
-        let arguments = shell_words::split(
-            &to_run
-                .split(' ')
-                .map(|arg| arg.to_string())
-                .collect::<Vec<String>>()
-                .join(" "),
-        )
-        .expect("Failed to parse script arguments");
+        let arguments = shell_words::split(&to_run).expect("Failed to parse script arguments");
 
         execute_script(arguments)
     }
@@ -245,15 +241,15 @@ impl Script {
 
 #[cfg(not(tarpaulin_include))]
 fn execute_script(mut arguments: Vec<String>) -> Result<String> {
-    debug!("\nArguments vec: {:?}", &arguments);
+    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 as i32,
-                ExitStatus::Signaled(c) => c as i32,
+                ExitStatus::Exited(c) => c.try_into().unwrap(),
+                ExitStatus::Signaled(c) => c.into(),
                 ExitStatus::Other(c) => c,
-                _ => -1,
+                ExitStatus::Undetermined => -1,
             };
             if es != 0 {
                 return Err(anyhow!("Exit code = {}", es));
@@ -278,7 +274,7 @@ pub fn find_scripts(mut path: PathBuf) -> Result<Vec<PathBuf>> {
         }
         Ok(files_vec)
     } else {
-        Err(anyhow!("Can't find scripts folder"))
+        Err(anyhow!("Can't find scripts folder {}", path.display()))
     }
 }
 
@@ -302,7 +298,7 @@ impl ScriptFile {
                     if line.starts_with('#') {
                         line.retain(|c| c != '#');
                         line = line.trim().to_string();
-                        line.push_str("\n");
+                        line.push('\n');
                         lines_buf.push_str(&line);
                     } else {
                         break;
@@ -380,7 +376,7 @@ mod tests {
     #[test]
     #[should_panic]
     fn find_invalid_folder() {
-        let scripts = find_scripts("Cargo.toml".into()).unwrap();
+        let _scripts = find_scripts("Cargo.toml".into()).unwrap();
     }
 
     #[test]
@@ -397,7 +393,7 @@ mod tests {
             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();
+        let _output = script.run().unwrap();
     }
 
     #[test]
@@ -407,7 +403,7 @@ mod tests {
             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();
+        let _output = script.run().unwrap();
     }
 
     #[test]

src/tui.rs

@@ -72,6 +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();