Merge pull request #174 from caass/patch-1

Allow compilation on windows (#171)

.all-contributorsrc

@@ -115,55 +115,6 @@
         "doc",
         "design"
       ]
-    },
-    {
-      "login": "Ferryistaken",
-      "name": "Alessandro Ferrari",
-      "avatar_url": "https://avatars3.githubusercontent.com/u/47927670?v=4",
-      "profile": "https://github.com/Ferryistaken",
-      "contributions": [
-        "content"
-      ]
-    },
-    {
-      "login": "Phenomite",
-      "name": "Phenomite",
-      "avatar_url": "https://avatars2.githubusercontent.com/u/8285537?v=4",
-      "profile": "https://github.com/Phenomite",
-      "contributions": [
-        "content"
-      ]
-    },
-    {
-      "login": "SuperSandro2000",
-      "name": "Sandro",
-      "avatar_url": "https://avatars2.githubusercontent.com/u/7258858?v=4",
-      "profile": "https://supersandro.de/",
-      "contributions": [
-        "content",
-        "bug",
-        "code"
-      ]
-    },
-    {
-      "login": "caass",
-      "name": "Cass",
-      "avatar_url": "https://avatars2.githubusercontent.com/u/25358963?v=4",
-      "profile": "https://swag.lgbt",
-      "contributions": [
-        "platform",
-        "code",
-        "bug"
-      ]
-    },
-    {
-      "login": "niklasmohrin",
-      "name": "Niklas Mohrin",
-      "avatar_url": "https://avatars0.githubusercontent.com/u/47574893?v=4",
-      "profile": "https://github.com/niklasmohrin",
-      "contributions": [
-        "doc"
-      ]
     }
   ],
   "contributorsPerLine": 7,

.dockerignore

@@ -1,2 +0,0 @@
-.git
-Dockerfile

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "src/rustscan_scripting_engine"]
-	path = src/rustscan_scripting_engine
-	url = https://github.com/RustScan/rustscan_scripting_engine

.travis.yml

@@ -1,37 +1,56 @@
 language: rust
+
 os:
-- linux
-- osx
+  - linux
+  - osx
+  - windows
+
 arch:
-- amd64
-- arm64
+  - amd64
+  - arm64
+
 services:
-- docker
+  - docker  
+
 before_install:
 - rustup component add rustfmt
+
+# cargo test
 rust:
-- stable
-- beta
+  - stable
+  - beta
 jobs:
   fast_finish: true
+
+# Cargo fmt
 script:
 - cargo build
 - cargo test
 - cargo fmt -- --check
+
+# automatic deployment to cargo on release
+# deploy:
+
+#   provider: releases
+#   api_key: "GITHUB OAUTH TOKEN"
+#   file: "FILE TO UPLOAD"
+#   skip_cleanup: true
+#   on:
+#     tags: true
+
+# after_success:
+#   - wget https://raw.githubusercontent.com/DiscordHooks/travis-ci-discord-webhook/master/send.sh
+#   - chmod +x send.sh
+#   - ./send.sh success $WEBHOOK_URL
+
+        # only deploy on master branch
+        # on:
+                # branch: master
+        # provider: cargo
+        # token: $crates 
+
+
 after_failure:
-- wget https://raw.githubusercontent.com/DiscordHooks/travis-ci-discord-webhook/master/send.sh
-- chmod +x send.sh
-- "./send.sh failure $WEBHOOK_URL"
-after_success: |
-  if [ -n "${GITHUB_TOKEN}" ]; then
-    [ "${TRAVIS_BRANCH} " = master ] &&
-    [ "${TRAVIS_PULL_REQUEST}" = false ] &&
-    cargo doc &&
-    echo "<meta http-equiv=refresh content=0;url=rustscan/index.html>" > target/doc/index.html &&
-    sudo pip install ghp-import &&
-    ghp-import -n target/doc &&
-    git push -fq https://${GITHUB_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git gh-pages
-  fi
-env:
-  global:
-    secure: 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
+  - wget https://raw.githubusercontent.com/DiscordHooks/travis-ci-discord-webhook/master/send.sh
+  - chmod +x send.sh
+  - ./send.sh failure $WEBHOOK_URL

Cargo.lock

@@ -759,7 +759,7 @@ dependencies = [
 
 [[package]]
 name = "rustscan"
-version = "1.8.0"
+version = "1.7.1"
 dependencies = [
  "ansi_term 0.12.1",
  "async-std",
@@ -814,9 +814,9 @@ checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "structopt"
-version = "0.3.17"
+version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6cc388d94ffabf39b5ed5fadddc40147cb21e605f53db6f8f36a625d27489ac5"
+checksum = "de5472fb24d7e80ae84a7801b7978f95a19ec32cb1876faea59ab711eb901976"
 dependencies = [
  "clap",
  "lazy_static",
@@ -825,9 +825,9 @@ dependencies = [
 
 [[package]]
 name = "structopt-derive"
-version = "0.4.10"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e2513111825077552a6751dfad9e11ce0fba07d7276a3943a037d7e93e64c5f"
+checksum = "1e0eb37335aeeebe51be42e2dc07f031163fbabfa6ac67d7ea68b5c2f68d5f99"
 dependencies = [
  "heck",
  "proc-macro-error",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rustscan"
-version = "1.8.0"
+version = "1.7.1"
 authors = ["Bee <[email protected]>"]
 edition = "2018"
 description = "Faster Nmap Scanning with Rust"
@@ -18,10 +18,9 @@ exclude = [
 
 [dependencies]
 colored = "2.0.0"
-structopt = "0.3.17"
+structopt = "0.3.16"
 async-std = "1.6.3"
 futures = "0.3"
-rlimit = "0.4.0"
 shell-words = "1.0.0"
 log = "0.4.0"
 env_logger = "0.7.1"
@@ -31,6 +30,9 @@ rand = "0.7.3"
 colorful = "0.2.1"
 ansi_term = "0.12.1"
 
+[target."cfg(not(windows))".dependencies]
+rlimit = "0.4.0"
+
 [package.metadata.deb]
 depends = "$auto, nmap"
 section = "rust"

Dockerfile

@@ -1,16 +1,22 @@
 FROM rust:alpine as builder
-RUN apk add --no-cache build-base
+RUN apk update && \
+    apk add build-base && \
+    rm -rf /var/cache/apk/*
 
 WORKDIR /usr/src/rustscan
 COPY . .
 RUN cargo install --path .
 
-FROM alpine:3.12
+FROM alpine
 LABEL author="Hydragyrum <https://github.com/Hydragyrum>"
-RUN addgroup -S rustscan && \
-    adduser -S -G rustscan rustscan && \
-    ulimit -n 100000 && \
-    apk add --no-cache nmap nmap-scripts wget
+RUN ulimit -n 100000 && \
+    apk update && \
+    apk add \
+    nmap nmap-scripts wget \
+    && \
+    rm -rf /var/cache/apk/*
 COPY --from=builder /usr/local/cargo/bin/rustscan /usr/local/bin/rustscan
+RUN addgroup -S rustscan && \
+    adduser -S -G rustscan rustscan
 USER rustscan
-ENTRYPOINT [ "/usr/local/bin/rustscan" ]
+ENTRYPOINT ["/usr/local/bin/rustscan"]

README.md

@@ -5,7 +5,7 @@
  <a href="https://github.com/RustScan/RustScan#-usage">Usage Guide</a>
  ⬅️
 <br>
-<img src="pictures/rustscan.png">
+<img src="https://github.com/RustScan/RustScan/blob/master/pictures/rustscan.png?raw=true">
 </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.
@@ -34,7 +34,27 @@
 3. ???
 4. Profit!
 
+<table>
+  <tr>
+  <th>Name</th>
+    <th>⚡ Nmap <b>with RustScan</b> ⚡ </th>
+    <th>🐢 Nmap 🐢</th>
+  </tr>
+  <tr>
+  <th>Gif</th>
+    <td><img src="https://github.com/RustScan/RustScan/blob/master/pictures/with_rustscan.gif?raw=true" alt="The guy she tells you not to worry about"></td>
+    <td><img src="https://github.com/RustScan/RustScan/blob/master/pictures/without_rustscan.gif?raw=true" alt="You"></td>
+  </tr>
+  <tr>
+  <th>Time</th>
+    <td><b>39 seconds</b></td>
+    <td><b>17 minutes and 41 seconds</b></td>
+  </tr>
+</table>
 
+<sub><b>Note</b> This is an older gif. RustScan's current top speed is 3 seconds for all 65k ports. This gif is 26 seconds.</sub><br>
+
+RustScans **only** job is to reduce the friction between finding open ports and inputting them into nmap.
 
 # ✨ Features
 * Scans all 65k ports in **8 seconds** (on 10k batch size).
@@ -47,7 +67,7 @@
 
 | 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://github.com/RustScan/RustScan/issues/89) | 🦜 [Discord](https://discord.gg/GFrQsGy)
 
 ## 🙋 Table of Contents
 * 📖 [Installation Guide](https://github.com/RustScan/RustScan#-full-installation-guide)
@@ -116,7 +136,7 @@ We strongly recommend using the `alpine` tag, as this is the latest major - stab
 
 Simply run this command against the IP you want to target:
 
-```bash
+```
 docker run -it --rm --name rustscan rustscan/rustscan:alpine <rustscan arguments here> <ip address to scan>
 ```
 
@@ -126,30 +146,30 @@ Once done, you will no longer need to re-download the image (except when RustSca
 
 You will have to run this command every time, so we suggest aliasing it to something memorable.
 
-```bash
-alias rustscan='docker run -it --rm --name rustscan rustscan/rustscan:alpine'
+```
+alias rustscan='docker run -it --rm --name rustscan rustscan/rustscan:alpine <rustscan arguments here> <ip address to scan>'
 ```
 
 Then we can:
 
-```bash
+```
 rustscan 127.0.0.1 -t 500 -b 1500 -- -A
 ```
 
 #### To build your own image:
 
 Download the repo:
-```bash
+```
 git clone https://github.com/RustScan/RustScan.git
 ```
 
 Ensure you navigate to the download location of the repo:
-```bash
+```
 cd /path/to/download/RustScan
 ```
 
 Build away!
-```bash
+```
 docker build -t <yourimagename> .
 ```
 
@@ -159,13 +179,13 @@ docker build -t <yourimagename> .
 
 Tap the brew:
 
-```bash
+```
 brew tap brandonskerritt/rustscan
 ```
 
 Install it:
 
-```bash
+```
 brew install rustscan
 ```
 
@@ -188,28 +208,28 @@ If you maintain a community distribution and want it listed here, leave an issue
 
 # 🤸 Usage
 
-```console
-$ rustscan -h
+```
+rustscan -h
+```
 
+```
+rustscan 1.7.1
 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. - Discord https://discord.gg/GFrQsGy - GitHub
 https://github.com/RustScan/RustScan
 
 USAGE:
-    rustscan [FLAGS] [OPTIONS] <ips-or-hosts>... [-- <command>...]
+    rustscan [FLAGS] [OPTIONS] <ips>... [-- <command>...]
 
 FLAGS:
-    -a, --accessible
-    -h, --help          Prints help information
-    -q, --quiet         Quiet mode. Only output the ports. No Nmap. Useful for grep or outputting to a file
-    -V, --version       Prints version information
+    -h, --help       Prints help information
+    -q, --quiet      Quiet mode. Only output the ports. No Nmap. Useful for grep or outputting to a file
+    -V, --version    Prints version information
 
 OPTIONS:
     -b, --batch-size <batch-size>    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 [default: 4500]
-    -p, --ports <ports>...           A list of comma separed ports to be scanned. Example: 80,443,8080.
-    -r, --range <range>              A range of ports with format start-end. Example: 1-1000
         --scan-order <scan-order>    The order of scanning to be performed. The "serial" option will scan ports in
                                      ascending order while the "random" option will scan ports randomly [default:
                                      serial]  [possible values: Serial, Random]
@@ -217,11 +237,11 @@ OPTIONS:
     -u, --ulimit <ulimit>            Automatically ups the ULIMIT with the value you provided
 
 ARGS:
-    <ips-or-hosts>...    A list of comma separated IP addresses or hosts to be scanned
-    <command>...         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)'\"")
+    <ips>...        A list of comma separated IP addresses to be scanned
+    <command>...    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)'\"")
 ```
 
 The format is `rustscan -b 500 -T 1500 192.168.0.1` to scan 192.168.0.1 with 500 batch size with a timeout of 1500ms. The timeout is how long RustScan waits for a response until it assumes the port is closed.
@@ -265,7 +285,7 @@ Decreasing batch size slows down the program, so as long as it isn't too drastic
 
 Run these 3 commands:
 
-```bash
+```
 ulimit -a
 ulimit -Hn
 ulimit -Sn
@@ -279,7 +299,7 @@ Increasing the open file limit increases speed, but poses danger. Although, **op
 
 To open more, set the ulimit to a higher number:
 
-```bash
+```
 ulimit -n 5000
 ```
 
@@ -359,7 +379,7 @@ Please read the [contributing.md file](contributing.md)
 
 ## Contributors ✨
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-16-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-11-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)):
@@ -382,13 +402,6 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://tgotwig.me"><img src="https://avatars0.githubusercontent.com/u/30773779?v=4" width="100px;" alt=""/><br /><sub><b>Thomas Gotwig</b></sub></a><br /><a href="#platform-TGotwig" title="Packaging/porting to new platform">📦</a></td>
     <td align="center"><a href="https://github.com/remigourdon"><img src="https://avatars3.githubusercontent.com/u/2874133?v=4" width="100px;" alt=""/><br /><sub><b>Rémi Gourdon</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=remigourdon" title="Documentation">📖</a> <a href="https://github.com/RustScan/RustScan/commits?author=remigourdon" title="Code">💻</a></td>
     <td align="center"><a href="https://cmnatic.co.uk"><img src="https://avatars3.githubusercontent.com/u/4163116?v=4" width="100px;" alt=""/><br /><sub><b>Ben (CMNatic)</b></sub></a><br /><a href="https://github.com/RustScan/RustScan/commits?author=cmnatic" title="Code">💻</a> <a href="https://github.com/RustScan/RustScan/commits?author=cmnatic" title="Documentation">📖</a> <a href="#design-cmnatic" title="Design">🎨</a></td>
-    <td align="center"><a href="https://github.com/Ferryistaken"><img src="https://avatars3.githubusercontent.com/u/47927670?v=4" width="100px;" alt=""/><br /><sub><b>Alessandro Ferrari</b></sub></a><br /><a href="#content-Ferryistaken" title="Content">🖋</a></td>
-    <td align="center"><a href="https://github.com/Phenomite"><img src="https://avatars2.githubusercontent.com/u/8285537?v=4" width="100px;" alt=""/><br /><sub><b>Phenomite</b></sub></a><br /><a href="#content-Phenomite" title="Content">🖋</a></td>
-    <td align="center"><a href="https://supersandro.de/"><img src="https://avatars2.githubusercontent.com/u/7258858?v=4" width="100px;" alt=""/><br /><sub><b>Sandro</b></sub></a><br /><a href="#content-SuperSandro2000" title="Content">🖋</a> <a href="https://github.com/RustScan/RustScan/issues?q=author%3ASuperSandro2000" title="Bug reports">🐛</a> <a href="https://github.com/RustScan/RustScan/commits?author=SuperSandro2000" title="Code">💻</a></td>
-  </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>
   </tr>
 </table>
 

src/main.rs

@@ -11,9 +11,13 @@ use port_strategy::PortStrategy;
 use colorful::Color;
 use colorful::Colorful;
 use futures::executor::block_on;
-use rlimit::Resource;
-use rlimit::{getrlimit, setrlimit};
+
+#[cfg(not(target_os = "windows"))]
+use rlimit::{getrlimit, setrlimit, Resource};
+
 use std::collections::HashMap;
+#[cfg(not(target_os = "windows"))]
+use std::convert::TryInto;
 use std::process::Command;
 use std::str::FromStr;
 use std::{net::IpAddr, net::ToSocketAddrs, time::Duration};
@@ -25,9 +29,9 @@ extern crate dirs;
 const LOWEST_PORT_NUMBER: u16 = 1;
 const TOP_PORT_NUMBER: u16 = 65535;
 // Average value for Ubuntu
-const DEFAULT_FILE_DESCRIPTORS_LIMIT: rlimit::rlim = 8000;
+const DEFAULT_FILE_DESCRIPTORS_LIMIT: u32 = 8000;
 // Safest batch size based on experimentation
-const AVERAGE_BATCH_SIZE: rlimit::rlim = 3000;
+const AVERAGE_BATCH_SIZE: u32 = 3000;
 
 #[macro_use]
 extern crate log;
@@ -110,7 +114,7 @@ struct Opts {
 
     /// Automatically ups the ULIMIT with the value you provided.
     #[structopt(short, long)]
-    ulimit: Option<rlimit::rlim>,
+    ulimit: Option<u32>,
 
     /// The order of scanning to be performed. The "serial" option will
     /// scan ports in ascending order while the "random" option will scan
@@ -120,7 +124,7 @@ struct Opts {
 
     /// 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'.
+    /// 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)'\"")
     #[structopt(last = true)]
@@ -156,7 +160,8 @@ fn main() {
         std::process::exit(1);
     }
 
-    let ulimit: rlimit::rlim = adjust_ulimit_size(&opts);
+    let ulimit: u32 = adjust_ulimit_size(&opts);
+
     let batch_size: u16 = infer_batch_size(&opts, ulimit);
 
     let scanner = Scanner::new(
@@ -187,7 +192,7 @@ fn main() {
 
         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.
-        \n Alternatively, increase the timeout if your ping is high. Rustscan -t 2000 for 2000 milliseconds (2s) timeout.\n",
+        \n Alternatively, increase the timeout if your ping is high. Rustscan -t 2000 for 2000 second timeout.\n",
         "ERROR",
         ip,
         opts.batch_size,
@@ -300,9 +305,10 @@ fn parse_ips(opts: &Opts) -> Vec<IpAddr> {
     ips
 }
 
-fn adjust_ulimit_size(opts: &Opts) -> rlimit::rlim {
+#[cfg(not(target_os = "windows"))]
+fn adjust_ulimit_size(opts: &Opts) -> u32 {
     if opts.ulimit.is_some() {
-        let limit: rlimit::rlim = opts.ulimit.unwrap();
+        let limit: rlimit::rlim = opts.ulimit.unwrap().into();
 
         match setrlimit(Resource::NOFILE, limit, limit) {
             Ok(_) => {
@@ -317,15 +323,22 @@ fn adjust_ulimit_size(opts: &Opts) -> rlimit::rlim {
 
     let (rlim, _) = getrlimit(Resource::NOFILE).unwrap();
 
-    rlim
+    rlim.try_into().unwrap()
 }
 
-fn infer_batch_size(opts: &Opts, ulimit: rlimit::rlim) -> u16 {
-    let mut batch_size: rlimit::rlim = opts.batch_size.into();
+// Rlimit does not support Windows
+// set to 1000 if Windows is used
+#[cfg(target_os = "windows")]
+fn adjust_ulimit_size(_opts: &Opts) -> u32 {
+    1000
+}
+
+fn infer_batch_size(opts: &Opts, ulimit: u32) -> u16 {
+    let mut batch_size: u32 = 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",
+    if ulimit < batch_size && !(cfg!(windows)) {
+        warning!("File limit is lower than default batch size. Consider upping with --ulimt. May cause harm to sensitive servers",
             opts.quiet
         );
 
@@ -336,7 +349,11 @@ 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'. ");
+            if !(cfg!(windows)) {
+                warning!("Your file limit is very small, which negatively impacts RustScan's speed. Use the Docker image, or up the Ulimit with '--ulimit 5000'. ");
+            } else {
+                warning!("Windows is known to be much slower than scanning on Unix systems. Use the Docker image if you need faster speeds.");
+            }
             info!("Halving batch_size because ulimit is smaller than average batch size");
             batch_size = ulimit / 2
         } else if ulimit > DEFAULT_FILE_DESCRIPTORS_LIMIT {
@@ -362,6 +379,7 @@ fn infer_batch_size(opts: &Opts, ulimit: rlimit::rlim) -> u16 {
 mod tests {
     use crate::{adjust_ulimit_size, infer_batch_size, parse_ips, print_opening, Opts, ScanOrder};
 
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn batch_size_lowered() {
         let opts = Opts {
@@ -381,6 +399,7 @@ mod tests {
         assert!(batch_size < 50_000);
     }
 
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn batch_size_lowered_average_size() {
         let opts = Opts {
@@ -399,6 +418,7 @@ mod tests {
 
         assert!(batch_size == 3_000);
     }
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn batch_size_equals_ulimit_lowered() {
         // because ulimit and batch size are same size, batch size is lowered
@@ -419,6 +439,7 @@ mod tests {
 
         assert!(batch_size == 4_900);
     }
+    #[cfg(not(target_os = "windows"))]
     #[test]
     fn batch_size_adjusted_2000() {
         // ulimit == batch_size