1.3 release

Remove quote on quiet

.all-contributorsrc

@@ -56,6 +56,16 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "imlonghao",
+      "name": "imlonghao",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/4951333?v=4",
+      "profile": "https://imlonghao.com",
+      "contributions": [
+        "bug",
+        "maintenance"
+      ]
     }
   ],
   "contributorsPerLine": 7,

.github/workflows/basic.yml

@@ -30,3 +30,19 @@ jobs:
       - uses: actions-rs/cargo@v1
         with:
           command: test
+
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check

.gitignore

@@ -4,7 +4,6 @@
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk
@@ -38,7 +37,6 @@ pkg/
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk

Cargo.lock

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+checksum = "510413f9de616762a4fbeab62509bf15c729603b72d7cd71280fbca431b1c118"
+dependencies = [
+ "heck",
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb7f4c519df8c117855e19dd8cc851e89eb746fe7a73f0157e0d95fdec5369b0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syn-mid"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7be3539f6c128a931cf19dcee741c1af532c7fd387baa739c03dd2e96479338a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "textwrap"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+dependencies = [
+ "unicode-width",
+]
+
+[[package]]
+name = "unicode-segmentation"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e83e153d1053cbb5a118eeff7fd5be06ed99153f00dbcd8ae310c5fb2b22edc0"
+
+[[package]]
+name = "unicode-width"
+version = "0.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "vec_map"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
+
+[[package]]
+name = "version_check"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
+
+[[package]]
+name = "waker-fn"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9571542c2ce85ce642e6b58b3364da2fb53526360dfb7c211add4f5c23105ff7"
+
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f3edbcc9536ab7eababcc6d2374a0b7bfe13a2b6d562c5e07f370456b1a8f33d"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89ed2fb8c84bfad20ea66b26a3743f3e7ba8735a69fe7d95118c33ec8fc1244d"
+dependencies = [
+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41ad6e4e8b2b7f8c90b6e09a9b590ea15cb0d1dbe28502b5a405cd95d1981671"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb071268b031a64d92fc6cf691715ca5a40950694d8f683c5bb43db7c730929e"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf592c807080719d1ff2f245a687cbadb3ed28b2077ed7084b47aba8b691f2c6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.65"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b6c0220ded549d63860c78c38f3bcc558d1ca3f4efa74942c536ddbbb55e87"
+
+[[package]]
+name = "web-sys"
+version = "0.3.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8be2398f326b7ba09815d0b403095f34dd708579220d099caae89be0b32137b2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "wepoll-sys-stjepang"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fd319e971980166b53e17b1026812ad66c6b54063be879eb182342b55284694"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rustscan"
-version = "1.2.0"
+version = "1.3.0"
 authors = ["Bee <[email protected]>"]
 edition = "2018"
 description = "Faster Nmap Scanning with Rust"
@@ -15,11 +15,12 @@ readme="README.md"
 
 [dependencies]
 colored = "1.9.3"
-clap = "2.33.0"
+structopt = "0.3.15"
 async-std = "1.6.2"
 futures = "0.3"
 rlimit = "0.3.0"
+shell-words = "1.0.0"
 
 [package.metadata.deb]
 depends = "$auto, nmap"
- 
+

README.md

@@ -1,11 +1,23 @@
 <p align="center">
-<img src="pictures/rustscan.png"><br>
-<u><b> Turns a 17 minutes Nmap scan into 19 seconds. </b></u><br> Find all open ports <b>fast</b> with Rustscan, automatically pipe them into Nmap. 
+➡️ 
+<a href="https://discord.gg/r38pna">Discord</a> |
+ <a href="https://github.com/RustScan/RustScan#-full-installation-guide">Installation Guide</a> |
+ <a href="https://github.com/RustScan/RustScan#-usage">Usage Guide</a>
+ ⬅️
+<br>
+<img src="pictures/rustscan.png">
+</p>
+<p align="center">
+<u><b> Turns a 17 minutes Nmap scan into 19 seconds. </b></u><br> Find all open ports <b>fast</b> with RustScan, automatically pipe them into Nmap. 
 </p>
 <p align="center">
 <img alt="AUR version" src="https://img.shields.io/aur/version/rustscan-bin">
 <img src="https://img.shields.io/badge/Built%20with-Rust-Purple">
 <img alt="GitHub commit activity" src="https://img.shields.io/github/commit-activity/w/brandonskerritt/rustscan">
+<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="Actions" src="https://github.com/RustScan/RustScan/workflows/Continuous%20integration/badge.svg">
 </p>
 <hr>
 
@@ -13,7 +25,7 @@
 | <p align="center"><a href="https://crates.io/crates/rustscan">🔧 Cargo (Universal) </a></p> | <p align="center"><a href="https://crates.io/crates/rust_scan"> Arch </a></p> | <p align="center"><a href="https://crates.io/crates/rust_scan"> HomeBrew </a></p> | <p align="center"><a href="https://crates.io/crates/rust_scan"> Kali / Debian </p> |
 | ---- | ---- | ---- | --- |
 | <p align="center"><img src="pictures/rust.png" /></p>  | <p align="center"><img src="pictures/arch.png" /></p> | <p align="center"><img src="pictures/apple.png" /></p> | <p align="center"><img src="pictures/kali.png" /></p> |
-| `cargo install rustscan` | `yay -S rustscan-bin` | `brew tap brandonskerritt/rustscan && brew install rustscan` | [Read the install guide](https://github.com/brandonskerritt/RustScan/blob/master/README.md#%EF%B8%8F-debian--kali) |
+| `cargo install rustscan` | `yay -S rustscan` | `brew tap brandonskerritt/rustscan && brew install rustscan` | [Read the install guide](https://github.com/brandonskerritt/RustScan/blob/master/README.md#%EF%B8%8F-debian--kali) |
 
 <hr>
 
@@ -96,8 +108,12 @@ Note: sometimes Rust doesn't add Cargo to the path. Please see [this issue](http
 ## 🖥️ Debian / Kali
 
 Download the .deb file from the releases page:
+
 [https://github.com/brandonskerritt/RustScan/releases](https://github.com/brandonskerritt/RustScan/releases)
-Run the commpand `dpkg -i` on the file. Note: sometimes you can double click the file to achieve the same result.
+
+Run the commpand `dpkg -i` on the file. 
+
+Note: sometimes you can double click the file to achieve the same result.
 
 ### 🥧 .deb file not working?
 The .deb file only works on AMD64 CPUs. If yours is different (such as a Raspberry Pi) or the .deb file doesn't work, it is easy to build the .deb file yourself.
@@ -246,7 +262,7 @@ To run your own nmap commands, end the RustScan command with `-- -A` where `--`
 
 RustScan automatically runs `nmap -vvv -p $PORTS $IP`. To make it run `-A`, execute the command `rustscan 127.0.0.1 -- -A`. 
 
-**Note**: due to how Nmap behaves, sometimes you cannot SIGINT ctrl+c to end the scan and it acts like it is running in the background, but printing to STD::OUT. There is nothing I can do about this, unless I create a TTY shell for the sole purpose of running Nmap. Sorry 😓 I'll try to fix in an upcoming release. If any Rust experts want to help, please do!
+If you want to run commands such as `--script (vuln and safe)`, you will need to enclose it in quotations like so `--script '"(vuln and safe) or default"'`.
 
 ## 🎯 Increasing speed / accuracy
 * Batch size
@@ -270,7 +286,7 @@ Ciphey is an automated decryption tool using artifical intelligence & natural la
 [Check it out here!](https://github.com/ciphey/ciphey)
 ## Contributors ✨
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-5-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-6-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)):
@@ -285,6 +301,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/smackhack"><img src="https://avatars2.githubusercontent.com/u/48143394?v=4" width="100px;" alt=""/><br /><sub><b>smackhack</b></sub></a><br /><a href="#ideas-smackhack" title="Ideas, Planning, & Feedback">🤔</a> <a href="#example-smackhack" title="Examples">💡</a></td>
     <td align="center"><a href="http://bernardoamc.github.io/"><img src="https://avatars0.githubusercontent.com/u/428984?v=4" width="100px;" alt=""/><br /><sub><b>Bernardo Araujo</b></sub></a><br /><a href="https://github.com/brandonskerritt/RustScan/commits?author=bernardoamc" title="Code">💻</a> <a href="https://github.com/brandonskerritt/RustScan/issues?q=author%3Abernardoamc" title="Bug reports">🐛</a> <a href="#design-bernardoamc" title="Design">🎨</a></td>
     <td align="center"><a href="https://github.com/Isona"><img src="https://avatars2.githubusercontent.com/u/11759523?v=4" width="100px;" alt=""/><br /><sub><b>Izzy Whistlecroft</b></sub></a><br /><a href="https://github.com/brandonskerritt/RustScan/issues?q=author%3AIsona" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="https://imlonghao.com"><img src="https://avatars1.githubusercontent.com/u/4951333?v=4" width="100px;" alt=""/><br /><sub><b>imlonghao</b></sub></a><br /><a href="https://github.com/brandonskerritt/RustScan/issues?q=author%3Aimlonghao" title="Bug reports">🐛</a> <a href="#maintenance-imlonghao" title="Maintenance">🚧</a></td>
   </tr>
 </table>
 

rustscan-debbuilder/Dockerfile

@@ -18,3 +18,4 @@ RUN echo "objcopy = { path = \"arm-linux-gnueabihf-objcopy\" }" >> /root/.cargo/
 COPY ./entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]
+1

src/main.rs

@@ -1,188 +1,170 @@
+extern crate shell_words;
+
 mod scanner;
 use scanner::Scanner;
 
-use clap::{App, Arg, AppSettings};
 use colored::*;
-use std::time::Duration;
-use std::process::{exit, Command};
-use std::convert::TryInto;
 use futures::executor::block_on;
 use rlimit::Resource;
-use rlimit::{setrlimit, getrlimit};
+use rlimit::{getrlimit, setrlimit};
+use std::process::{exit, Command};
+use std::time::Duration;
+use structopt::StructOpt;
+
+#[derive(StructOpt, Debug)]
+#[structopt(name = "rustscan", setting = structopt::clap::AppSettings::TrailingVarArg)]
+/// 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.
+struct Opts {
+    /// The IP address to scan
+    ip: String,
+
+    ///Quiet mode. Only output the ports. No Nmap. Useful for grep or outputting to a file.
+    #[structopt(short, long)]
+    quiet: 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
+    /// support this.
+    #[structopt(short, long, default_value = "4500")]
+    batch_size: u64,
+
+    /// The timeout in milliseconds before a port is assumed to be closed.
+    #[structopt(short, long, default_value = "1500")]
+    timeout: u64,
+
+    /// Automatically ups the ULIMIT with the value you provided.
+    #[structopt(short, long)]
+    ulimit: Option<u64>,
+
+    /// The Nmap arguments to run.
+    /// To use the argument -A, end RustScan's args with '-- -A'.
+    /// Example: 'rustscan -T 1500 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)'\"")
+    command: Vec<String>,
+}
 
 /// Faster Nmap scanning with Rust
 fn main() {
-    let matches = App::new("RustScan")
-        .author("Bee https://github.com/brandonskerritt")
-        .about("Fast Port Scanner built in Rust\nWARNING Do not use this program against sensitive infrastructure. The specified server may not be able to handle this many socket connections at once.")
-        .version("1.2.0")
-        .setting(AppSettings::TrailingVarArg)
-
-        // IP address is a required argument
-        .arg(Arg::with_name("ip")
-            .required(true)
-            .index(1)
-            .long("ip-address")
-            .help("The IP address to scan"))
-        .arg(Arg::with_name("b")
-            .short("b")
-            .long("batch")
-            .takes_value(true)
-            .default_value("4500")
-            .help("Increases speed of scanning. The batch size for port scanning. Depends on your open file limit of OS. If you do 65535 it will do every port at the same time. Although, your OS may not support this."))
-        .arg(Arg::with_name("T")
-            .short("T")
-            .long("timeout")
-            .takes_value(true)
-            .default_value("1500")
-            .help("The timeout before a port is assumed to be close. In MS."))
-        .arg(Arg::with_name("q")
-            .short("-q")
-            .long("quiet")
-            .takes_value(false)
-            .help("Quiet mode. Only output the ports. No Nmap. Useful for grep or outputting to a file."))
-        .arg(Arg::with_name("u")
-            .short("u")
-            .long("ulimit")
-            .help("Automatically ups the ULIMIT with the value you provided.")
-            .takes_value(true))
-        .arg(
-            Arg::with_name("command")
-                .help("The Nmap arguments to run. To use the argument -A, end RustScan's args with '-- -A'. To run EXAMPLE: 'rustscan -T 1500 127.0.0.1 -- -A -sC'. This argument auto runs nmap {your commands} -vvv -p $PORTS ")
-                .takes_value(true)
-                .multiple(true),
-        )
-        .get_matches();
-
-
-    let ip = matches.value_of("ip").unwrap_or("None");
-    let ulimit_arg = matches.value_of("u").unwrap_or("None");
-    let quiet = if matches.is_present("q") { true } else { false };
-    let command_matches= matches.values_of("command");
-    let command_run: String = match command_matches {
-        // We use the user supplied args
-        Some(_x) => {
-            // TODO x is the same as below, use that instead
-            matches.values_of("command").unwrap().collect::<Vec<_>>().join(" ")
-        }
-        // we default
-        None    => "-A -vvv".to_string()
+    let mut opts = Opts::from_args();
 
+    let user_nmap_options = if opts.command.is_empty() {
+        "-A -vvv".to_string()
+    } else {
+        opts.command.join(" ")
     };
 
-    let mut batch_size: u64 = matches
-                        .value_of("b")
-                        .unwrap_or("None")
-                        .parse::<u64>()
-                        .unwrap();
-
-    if !quiet {
+    if !opts.quiet {
         print_opening();
     }
 
-    // checks ulimit
+    // Updates ulimit when the argument is set
+    if opts.ulimit.is_some() {
+        let limit = opts.ulimit.unwrap();
 
-    // change ulimit size
-    if !(ulimit_arg == "None") {
-        let limit = ulimit_arg.parse::<u64>().unwrap();
-        if !quiet{
-            println!("Automatically upping ulimit to {}", ulimit_arg);
+        if !opts.quiet {
+            println!("Automatically upping ulimit to {}", limit);
         }
-        let uresult = setrlimit(Resource::NOFILE, limit, limit);
 
-        match uresult {
+        match setrlimit(Resource::NOFILE, limit, limit) {
             Ok(_) => {}
-            Err(_) => {println!("ERROR.  Failed to set Ulimit.")}
+            Err(_) => println!("ERROR.  Failed to set Ulimit."),
         }
     }
 
-
-
     let (x, _) = getrlimit(Resource::NOFILE).unwrap();
 
     // if maximum limit is lower than batch size
     // automatically re-adjust the batch size
-    if x < batch_size.into() {
-        if !quiet{
+    if x < opts.batch_size {
+        if !opts.quiet {
             println!("{}", "WARNING: Your file description limit is lower than selected batch size. Please considering upping this (how to is on the README). NOTE: this may be dangerous and may cause harm to sensitive servers. Automatically reducing Batch Size to match your limit, this process isn't harmful but reduces speed.".red());
-            // TODO this is a joke please fix
+        }
 
-            // if the OS supports high file limits like 8000
-            // but the user selected a batch size higher than this
-            // reduce to a lower number
-            // basically, ubuntu is 8000
-            // but i can only get it to work on < 5k in testing
-            // 5k is default, so 3000 seems safe
-            if x > 8000{
-                batch_size = 3000
-            }
-            else {
-                let ten: u64 = 100;
-                batch_size = x - ten;
-            }
+        // TODO this is a joke please fix
+
+        // if the OS supports high file limits like 8000
+        // but the user selected a batch size higher than this
+        // reduce to a lower number
+        // basically, ubuntu is 8000
+        // but i can only get it to work on < 5k in testing
+        // 5k is default, so 3000 seems safe
+        if x > 8000 {
+            opts.batch_size = 3000
+        } else {
+            opts.batch_size = x - 100u64;
         }
     }
     // else if the ulimit is higher than batch size
     // tell the user they can increase batch size
     // if the user set ulimit arg they probably know what they are doing so don't print this
-    else if x + 2 > batch_size.into() && (ulimit_arg == "None"){
-        if !quiet{
-            // TODO this is a joke please fix
-            let one: u64 = 1;
-            println!("Your file description limit is higher than the batch size. You can potentially increase the speed by increasing the batch size, but this may cause harm to sensitive servers. Your limit is {}, try batch size {}.", x, x - one);
+    else if x + 2 > opts.batch_size && (opts.ulimit.is_none()) {
+        if !opts.quiet {
+            println!(
+                "Your file description limit is higher than the batch size. You can potentially increase the speed by increasing the batch size, but this may cause harm to sensitive servers. Your limit is {}, try batch size {}.",
+                x,
+                x - 1u64
+            );
         }
     }
     // the user has asked to automatically up the ulimit
 
-    // gets timeout
-    let duration_timeout =
-        matches
-            .value_of("T")
-            .unwrap_or("None")
-            .parse::<u64>()
-            .unwrap();
-
     // 65535 + 1 because of 0 indexing
-    let scanner = Scanner::new(ip, 1, 65536, batch_size.try_into().unwrap(), Duration::from_millis(duration_timeout), quiet);
+    let scanner = Scanner::new(
+        &opts.ip,
+        1,
+        65536,
+        opts.batch_size,
+        Duration::from_millis(opts.timeout),
+        opts.quiet,
+    );
     let scan_result = block_on(scanner.run());
 
     // prints ports and places them into nmap string
-    let nmap_str_ports: Vec<String> = scan_result.into_iter().map(|port| port.to_string()).collect();
+    let nmap_str_ports: Vec<String> = scan_result
+        .into_iter()
+        .map(|port| port.to_string())
+        .collect();
 
     // if no ports are found, suggest running with less
     if nmap_str_ports.is_empty() {
         panic!("{} Looks like I didn't find any open ports. This is usually caused by a high batch size.
         \n*I used {} threads, consider lowering to {} with {} or a comfortable number lfor your system.
-        \n Alternatively, increase the timeout if your ping is high. Rustscan -T 2000 for 2000 second timeout.", "ERROR".red(), batch_size, (batch_size / 2).to_string().green(), "'rustscan -b <batch_size> <ip address>'".green());
+        \n Alternatively, increase the timeout if your ping is high. Rustscan -T 2000 for 2000 second timeout.", "ERROR".red(),
+        opts.batch_size,
+        (opts.batch_size / 2).to_string().green(),
+        "'rustscan -b <batch_size> <ip address>'".green());
     }
 
     // Tells the user we are now switching to Nmap
-    if !quiet{
-        println!(
-            "{}",
-            "Starting nmap.".blue(),
-        );
+    if !opts.quiet {
+        println!("{}", "Starting nmap.".blue(),);
     }
 
     // nmap port style is 80,443. Comma seperated with no spaces.
     let ports_str = nmap_str_ports.join(",");
 
     // if quiet mode is on, return ports and exit
-    if quiet{
-        println!("{:?}", ports_str);
+    if opts.quiet {
+        println!("{}", ports_str);
         exit(1);
     }
 
-    let string_format = format!("{} {} {} {} {} {}", command_run, "-Pn", "-vvv", "-p", &ports_str, ip);
-    if !quiet{
-        println!("The Nmap command to be run is {}", string_format);
+    let nmap_args = format!(
+        "{} {} {} {} {} {}",
+        &user_nmap_options, "-vvv", "-Pn", "-p", &ports_str, opts.ip
+    );
+    if !opts.quiet {
+        println!("The Nmap command to be run is {}", &nmap_args);
     }
-    let command_list = string_format.split_whitespace();
-    let vec = command_list.collect::<Vec<&str>>();
+    let nmap_args = shell_words::split(&nmap_args).expect("failed to parse nmap arguments");
 
     // Runs the nmap command and spawns it as a process.
     let mut child = Command::new("nmap")
-        .args(&vec)
+        .args(&nmap_args)
         .spawn()
         .expect("failed to execute nmap process");
 
@@ -198,10 +180,21 @@ fn print_opening() {
     | | \\ \\ |_| \\__ \\ |_ ____) | (_| (_| | | | |
     |_|  \\_\\__,_|___/\\__|_____/ \\___\\__,_|_| |_|
     Faster nmap scanning with rust.";
-    println!(
-        "{} \n {} \n {}",
-        s.green(),
-        "Automated Decryption Tool - https://github.com/ciphey/ciphey".green(),
-        "Creator https://github.com/brandonskerritt".green()
-    );
+    println!("{}\n", s.green());
+}
+
+#[cfg(test)]
+mod tests {
+    use super::Scanner;
+    use async_std::task::block_on;
+    use std::time::Duration;
+
+    #[test]
+    fn does_it_run() {
+        // Makes sure te program still runs and doesn't panic
+        let scanner = Scanner::new("127.0.0.1", 1, 65536, 1000, Duration::from_millis(10), true);
+        let scan_result = block_on(scanner.run());
+        // if the scan fails, it wouldn't be able to assert_eq! as it panicked!
+        assert_eq!(1, 1);
+    }
 }

src/scanner.rs

@@ -1,13 +1,13 @@
 use async_std::io;
 use async_std::net::TcpStream;
+use async_std::prelude::*;
 use colored::*;
+use futures::stream::FuturesUnordered;
 use std::time::Duration;
 use std::{
-    net::{SocketAddr, Shutdown},
     io::ErrorKind,
+    net::{Shutdown, SocketAddr},
 };
-use async_std::prelude::*;
-use futures::stream::FuturesUnordered;
 
 pub struct Scanner {
     host: String,
@@ -19,14 +19,21 @@ pub struct Scanner {
 }
 
 impl Scanner {
-    pub fn new(host: &str, start: u64, end: u64, batch_size: u64, timeout: Duration, quiet: bool) -> Self {
+    pub fn new(
+        host: &str,
+        start: u64,
+        end: u64,
+        batch_size: u64,
+        timeout: Duration,
+        quiet: bool,
+    ) -> Self {
         Self {
             host: host.to_owned(),
             start,
             end,
             batch_size,
             timeout,
-            quiet
+            quiet,
         }
     }
 
@@ -61,7 +68,7 @@ impl Scanner {
     }
 
     async fn scan_port(&self, port: &u64) -> io::Result<u64> {
-        let addr = format!("{}:{}", self.host , port);
+        let addr = format!("{}:{}", self.host, port);
 
         match addr.parse() {
             Ok(sock_addr) => match self.connect(sock_addr).await {
@@ -90,9 +97,18 @@ impl Scanner {
         }
     }
 
-
     async fn connect(&self, addr: SocketAddr) -> io::Result<TcpStream> {
-        let stream = io::timeout(self.timeout, async move { TcpStream::connect(addr).await }).await?;
+        let stream =
+            io::timeout(self.timeout, async move { TcpStream::connect(addr).await }).await?;
         Ok(stream)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn does_it_run() {
+        // TODO run functions here
+        assert_eq!(1, 1);
+    }
+}