add geoip for displaying the place names

2020-04-01 10:42:57 -07:00
50 changed files with 1174 additions and 4825 deletions
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -1,3 +0,0 @@
-# These are supported funding model platforms
-
-github: schollz
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,9 +1,29 @@
 ---
-name: New issue
-about: Create an issue
+name: Bug report
+about: Create a report to help us improve
 title: ''
+labels: ''
 assignees: ''

 ---

-*Read this and delete before submitting:* Thanks for starting a discussion! Please provide as much context as possible so that others can understand your thoughts. If you have a specific change in mind, consider submitting a pull request instead.
+**Please try to [download the latest version](https://github.com/schollz/croc/releases/latest) of croc before reporting a bug!**
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Version**
+Check `croc -version` and report it.
+
+**Additional context**
+Add any other context about the problem here.
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -1,10 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "daily"
-  - package-ecosystem: "gomod"
-    directory: "/"
-    schedule:
-      interval: "daily"
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@ -1,52 +0,0 @@
-name: CI
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-jobs:
-  unit-tests:
-    name: Go unit tests
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: actions/setup-go@v5
-      with:
-        go-version: '1.23'
-    - run: go version
-    - run: go test -v ./...
-    - name: Build files
-      run: |
-        go version
-        CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc.exe
-        CGO_ENABLED=0 GOOS=windows GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc.exe
-        CGO_ENABLED=0 GOOS=windows GOARCH=arm64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc
-        CGO_ENABLED=0 GOOS=linux GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc
-        CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc
-        GOARM=5 CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc
-        CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags '-extldflags "-static"' -o croc
-        CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags '-s -extldflags "-sectcreate __TEXT __info_plist Info.plist"' -o croc
-        CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags '-s -extldflags "-sectcreate __TEXT __info_plist Info.plist"' -o croc
-        CGO_ENABLED=0 GOOS=dragonfly GOARCH=amd64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=freebsd GOARCH=arm64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=386 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=amd64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=arm64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=openbsd GOARCH=amd64 go build -ldflags '' -o croc
-        CGO_ENABLED=0 GOOS=openbsd GOARCH=arm64 go build -ldflags '' -o croc
-    - name: Setup Go
-      uses: actions/setup-go@v5
-      with:
-        go-version: '1.20.7' # go1.20.8+ refuses to build go1.22 code...
-    - name: Build Windows 7
-      run: |
-        go version
-        rm go.mod go.sum
-        go mod init github.com/schollz/croc/v10
-        go mod tidy
-        CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc.exe
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@ -1,64 +0,0 @@
-# This is a basic workflow to help you get started with Actions
-
-name: CD
-
-# Controls when the action will run. 
-on:
-  # Triggers the workflow on push or pull request events but only for the main branch
-  push:
-    branches:
-      - '*'
-    tags:
-      - 'v*'
-  pull_request:
-    branches:
-      - '*'
-
-  # Allows you to run this workflow manually from the Actions tab
-  workflow_dispatch:
-
-# A workflow run is made up of one or more jobs that can run sequentially or in parallel
-jobs:
-  docker:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
-      -
-        name: Docker meta
-        id: docker_meta
-        uses: docker/metadata-action@v5
-        with:
-          images: schollz/croc
-          # generate Docker tags based on the following events/attributes
-          tags: |
-            type=ref,event=branch
-            type=ref,event=pr
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=semver,pattern={{major}}
-            type=sha
-      -
-        name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-      -
-        name: Login to DockerHub
-        if: github.event_name != 'pull_request'
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
-          password: ${{ secrets.DOCKERHUB_TOKEN }}
-      -
-        name: Build and push
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          file: ./Dockerfile
-          platforms: linux/amd64,linux/arm,linux/arm64,linux/386
-          push: ${{ github.event_name != 'pull_request' }}
-          tags: ${{ steps.docker_meta.outputs.tags }}
-          labels: ${{ steps.docker_meta.outputs.labels }}
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@ -1,131 +0,0 @@
-name: Make release
-
-on:
-  release:
-    types: [created]
-  workflow_dispatch:
-
-permissions:
-  contents: write
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout project
-      uses: actions/checkout@v4
-    - name: Setup Go
-      uses: actions/setup-go@v4
-      with:
-        go-version: '1.23'
-    - name: Prepare source tarball
-      run: |
-        git clone -b ${{ github.event.release.name }} --depth 1 https://github.com/schollz/croc croc-${{ github.event.release.name }}
-        cd croc-${{ github.event.release.name }} && go mod tidy && go mod vendor
-        cd .. && tar -czvf croc_${{ github.event.release.name }}_src.tar.gz croc-${{ github.event.release.name }}
-    - name: Build files
-      run: |
-        CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows-64bit.zip croc.exe LICENSE
-        CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows-32bit.zip croc.exe LICENSE
-        CGO_ENABLED=0 GOOS=windows GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows-ARM.zip croc.exe LICENSE
-        CGO_ENABLED=0 GOOS=windows GOARCH=arm64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows-ARM64.zip croc.exe LICENSE
-        CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_Linux-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=linux GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_Linux-32bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_Linux-ARM.tar.gz croc LICENSE
-        GOARM=5 CGO_ENABLED=0 GOOS=linux GOARCH=arm go build -ldflags '-extldflags "-static"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_Linux-ARMv5.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags '-extldflags "-static"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_Linux-ARM64.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags '-s -extldflags "-sectcreate __TEXT __info_plist Info.plist"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_macOS-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags '-s -extldflags "-sectcreate __TEXT __info_plist Info.plist"' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_macOS-ARM64.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=dragonfly GOARCH=amd64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_DragonFlyBSD-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_FreeBSD-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=freebsd GOARCH=arm64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_FreeBSD-ARM64.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=386 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_NetBSD-32bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=amd64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_NetBSD-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=netbsd GOARCH=arm64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_NetBSD-ARM64.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=openbsd GOARCH=amd64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_OpenBSD-64bit.tar.gz croc LICENSE
-        CGO_ENABLED=0 GOOS=openbsd GOARCH=arm64 go build -ldflags '' -o croc
-        tar -czvf croc_${{ github.event.release.name }}_OpenBSD-ARM64.tar.gz croc LICENSE
-    - name: Setup Go
-      uses: actions/setup-go@v5
-      with:
-        go-version: '1.20.7' # go1.20.8+ refuses to build go1.22 code...
-    - name: Build Windows 7
-      run: |
-        go version
-        rm go.mod go.sum
-        go mod init github.com/schollz/croc/v10
-        go mod tidy
-        CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows7-64bit.zip croc.exe
-        CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -ldflags '-extldflags "-static"' -o croc.exe
-        zip croc_${{ github.event.release.name }}_Windows7-32bit.zip croc.exe
-    - name: Create checksums.txt
-      run: |
-        touch croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_src.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows-64bit.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows-32bit.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows-ARM.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows-ARM64.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows7-64bit.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Windows7-32bit.zip >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Linux-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Linux-32bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Linux-ARM.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Linux-ARMv5.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_Linux-ARM64.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_macOS-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_macOS-ARM64.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_DragonFlyBSD-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_FreeBSD-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_FreeBSD-ARM64.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_NetBSD-32bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_NetBSD-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_NetBSD-ARM64.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_OpenBSD-64bit.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-        sha256sum croc_${{ github.event.release.name }}_OpenBSD-ARM64.tar.gz >> croc_${{ github.event.release.name }}_checksums.txt
-    - name: Release
-      uses: softprops/action-gh-release@v2
-      with:
-        files: |
-          croc_${{ github.event.release.name }}_checksums.txt
-          croc_${{ github.event.release.name }}_src.tar.gz
-          croc_${{ github.event.release.name }}_Windows-64bit.zip
-          croc_${{ github.event.release.name }}_Windows-32bit.zip
-          croc_${{ github.event.release.name }}_Windows-ARM.zip
-          croc_${{ github.event.release.name }}_Windows-ARM64.zip
-          croc_${{ github.event.release.name }}_Windows7-64bit.zip
-          croc_${{ github.event.release.name }}_Windows7-32bit.zip
-          croc_${{ github.event.release.name }}_Linux-64bit.tar.gz
-          croc_${{ github.event.release.name }}_Linux-32bit.tar.gz
-          croc_${{ github.event.release.name }}_Linux-ARM.tar.gz
-          croc_${{ github.event.release.name }}_Linux-ARMv5.tar.gz
-          croc_${{ github.event.release.name }}_Linux-ARM64.tar.gz
-          croc_${{ github.event.release.name }}_macOS-64bit.tar.gz
-          croc_${{ github.event.release.name }}_macOS-ARM64.tar.gz 
-          croc_${{ github.event.release.name }}_DragonFlyBSD-64bit.tar.gz
-          croc_${{ github.event.release.name }}_FreeBSD-64bit.tar.gz
-          croc_${{ github.event.release.name }}_FreeBSD-ARM64.tar.gz
-          croc_${{ github.event.release.name }}_NetBSD-32bit.tar.gz
-          croc_${{ github.event.release.name }}_NetBSD-64bit.tar.gz
-          croc_${{ github.event.release.name }}_NetBSD-ARM64.tar.gz
-          croc_${{ github.event.release.name }}_OpenBSD-64bit.tar.gz
-          croc_${{ github.event.release.name }}_OpenBSD-ARM64.tar.gz
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@ -1,27 +0,0 @@
-# This workflow warns and then closes issues and PRs that have had no activity for a specified amount of time.
-#
-# You can adjust the behavior by modifying this file.
-# For more information, see:
-# https://github.com/actions/stale
-name: Mark stale issues and pull requests
-
-on:
-  schedule:
-  - cron: '19 12 * * *'
-
-jobs:
-  stale:
-
-    runs-on: ubuntu-latest
-    permissions:
-      issues: write
-      pull-requests: write
-
-    steps:
-    - uses: actions/stale@v9
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'Stale issue message'
-        stale-pr-message: 'Stale pull request message'
-        stale-issue-label: 'no-issue-activity'
-        stale-pr-label: 'no-pr-activity'
--- a/.github/workflows/winget.yml
+++ b/.github/workflows/winget.yml
@ -1,14 +0,0 @@
-name: Publish to Winget
-on:
-  release:
-    types: [released]
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: vedantmgoyal2009/winget-releaser@v2
-        with:
-          identifier: schollz.croc
-          installers-regex: '_Windows-\w+\.zip$'
-          token: ${{ secrets.WINGET_TOKEN }}
--- a/.gitignore
+++ b/.gitignore
@ -1,13 +0,0 @@
-# Binaries
-/croc
-/croc.exe
-zsh_autocomplete
-bash_autocomplete
-dist
-bin
-croc-stdin*
-
-.idea/
-.vscode/
-src/utils/bigfile.test
-test1/
--- a/.travis.yml
+++ b/.travis.yml
@ -10,12 +10,12 @@ install: true

 script:
  - env GO111MODULE=on go build -v
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/compress
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/croc
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/crypt
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/tcp
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/utils
-  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v10/src/comm
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/compress
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/croc
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/crypt
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/tcp
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/utils
+  - env GO111MODULE=on go test -v -cover github.com/schollz/croc/v8/src/comm
  
 branches:
  except:
--- a/7
+++ b/7
@ -1,8 +1,8 @@
-FROM golang:1.22-alpine as builder
-RUN apk add --no-cache git gcc musl-dev
+FROM golang:1.14-alpine as builder
+RUN apk add --no-cache git
 WORKDIR /go/croc
 COPY . .
-RUN go build -v -ldflags="-s -w"
+RUN go build -v

 FROM alpine:latest 
 EXPOSE 9009
@ -11,6 +11,5 @@ EXPOSE 9011
 EXPOSE 9012
 EXPOSE 9013
 COPY --from=builder /go/croc/croc /go/croc/croc-entrypoint.sh /
-USER nobody
 ENTRYPOINT ["/croc-entrypoint.sh"]
 CMD ["relay"]
--- a/2
+++ b/2
@ -1,6 +1,6 @@
 MIT License

-Copyright (c) 2017-2024 Zack
+Copyright (c) 2017-2020 Zack

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/README.md
+++ b/README.md
@ -4,13 +4,15 @@
    src="https://user-images.githubusercontent.com/6550035/46709024-9b23ad00-cbf6-11e8-9fb2-ca8b20b7dbec.jpg"
    width="408px" border="0" alt="croc">
 <br>
-<a href="https://github.com/schollz/croc/releases/latest"><img src="https://img.shields.io/badge/version-v10.1.1-brightgreen.svg?style=flat-square" alt="Version"></a>
-<a href="https://github.com/schollz/croc/actions/workflows/ci.yml"><img
-src="https://github.com/schollz/croc/actions/workflows/ci.yml/badge.svg" alt="Build
+<a href="https://github.com/schollz/croc/releases/latest"><img src="https://img.shields.io/badge/version-v8.0.5-brightgreen.svg?style=flat-square" alt="Version"></a>
+<a href="https://coveralls.io/github/schollz/croc"><img src="https://img.shields.io/badge/coverage-81%25-green.svg?style=flat-square" alt="Coverage"></a>
+<a href="https://travis-ci.org/schollz/croc"><img
+src="https://img.shields.io/travis/schollz/croc.svg?style=flat-square" alt="Build
 Status"></a> 
-<p align="center">This project is supported by <a href="https://github.com/sponsors/schollz">Github sponsors</a>.</p>
+<a href="https://saythanks.io/to/schollz"><img src="https://img.shields.io/badge/Say%20Thanks-!-brightgreen.svg?style=flat-square" alt="Say thanks"></a>
+</p>

-`croc` is a tool that allows any two computers to simply and securely transfer files and folders. AFAIK, *croc* is the only CLI file-transfer tool that does **all** of the following:
+`croc` is a tool that allows any two computers to simply and securely transfer files and folders. AFAIK, *croc* is the only CLI file-transfer tool does **all** of the following:

 - allows **any two computers** to transfer data (using a relay)
 - provides **end-to-end encryption** (using PAKE)
@ -18,111 +20,58 @@ Status"></a>
 - allows **multiple file** transfers
 - allows **resuming transfers** that are interrupted
 - local server or port-forwarding **not needed**
- **ipv6-first** with ipv4 fallback
- can **use proxy**, like tor
+- **faster** than [wormhole](https://github.com/warner/magic-wormhole), [rsync](https://linux.die.net/man/1/rsync), [scp](https://linux.die.net/man/1/scp) through compression and multiplexing (speedups 1.5x to 4x)

-For more information about `croc`, see [my blog post](https://schollz.com/software/croc6) or read a [recent interview I did](https://console.substack.com/p/console-91).
+For more information about `croc`, see [my blog post](https://schollz.com/software/croc6).

-![Example](src/install/customization.gif)

 ## Install

 Download [the latest release for your system](https://github.com/schollz/croc/releases/latest), or install a release from the command-line:

 ```
-curl https://getcroc.schollz.com | bash
+$ curl https://getcroc.schollz.com | bash
 ```


 On macOS you can install the latest release with [Homebrew](https://brew.sh/): 

 ```
-brew install croc
+$ brew install schollz/tap/croc
 ```

-On macOS you can also install the latest release with [MacPorts](https://macports.org/): 
+
+On Windows you can install the latest release with [Scoop](https://scoop.sh/): 

 ```
-sudo port selfupdate
-sudo port install croc
-```
-
-On Windows you can install the latest release with [Scoop](https://scoop.sh/), [Chocolatey](https://chocolatey.org), or [Winget](https://learn.microsoft.com/en-us/windows/package-manager/): 
-
-```
-scoop install croc
-```
-
-```
-choco install croc
-```
-
-```
-winget install schollz.croc
+$ scoop install croc
 ```

 On Unix you can install the latest release with [Nix](https://nixos.org/nix):

 ```
-nix-env -i croc
+$ nix-env -i croc
 ```


-On Alpine Linux you have to install dependencies first:
-
-```
-apk add bash coreutils
-wget -qO- https://getcroc.schollz.com | bash
-```
-
 On Arch Linux you can install the latest release with `pacman`:

 ```
-pacman -S croc
+$ pacman -S croc
 ```

-On Fedora you can install with `dnf`:
+On Ubuntu you can install with `snap`:

 ```
-dnf install croc
+$ snap install croc
 ```

-On Gentoo you can install with `portage`:
-```
-emerge net-misc/croc
-```
-
-On Termux you can install with `pkg`:
+Or, you can [install Go](https://golang.org/dl/) and build from source (requires Go 1.12+): 

 ```
-pkg install croc
+$ GO111MODULE=on go get -v github.com/schollz/croc/v8
 ```

-On FreeBSD you can install with `pkg`:
-
-```
-pkg install croc
-```
-
-On Linux, macOS, and Windows you can install from [conda-forge](https://github.com/conda-forge/croc-feedstock/) globally with [`pixi`](https://pixi.sh/):
-
-```
-pixi global install croc
-```
-
-or into a particular environment with [`conda`](https://docs.conda.io/projects/conda/):
-
-```
-conda install --channel conda-forge croc
-```
-
-Or, you can [install Go](https://golang.org/dl/) and build from source (requires Go 1.17+):
-
-```
-go install github.com/schollz/croc/v10@latest
-```
-
-On Android there is a 3rd party F-Droid app [available to download](https://f-droid.org/en/packages/com.github.howeyc.crocgui/).


 ## Usage 
@ -138,144 +87,74 @@ Code is: code-phrase
 Then to receive the file (or folder) on another computer, you can just do 

 ```
-croc code-phrase
+$ croc code-phrase
 ```

 The code phrase is used to establish password-authenticated key agreement ([PAKE](https://en.wikipedia.org/wiki/Password-authenticated_key_agreement)) which generates a secret key for the sender and recipient to use for end-to-end encryption.

 There are a number of configurable options (see `--help`). A set of options (like custom relay, ports, and code phrase) can be set using `--remember`.

-### Using `croc` on Linux or Mac OS
-
-On Linux and Mac OS, the sending & receiving is slightly different to avoid [leaking the secret via the process name](https://nvd.nist.gov/vuln/detail/CVE-2023-43621). On these systems you will need to run `croc` with the secret as an environment variable. For example, to receive with the secret `***`:
-
-```
-CROC_SECRET=*** croc
-```
-
-This will show only `croc` in the process list of a multi-user system and not leak the secret.
-
-For a single-user system the default behavior can be permanently enabled by running
-
-```
-croc --classic
-```
-
-and confirming. 
-Run this command again to disable classic mode.
-
 ### Custom code phrase

-You can send with your own code phrase (must be more than 6 characters).
+You can send with your own code phrase (must be more than 4 characters).

 ```
-croc send --code [code-phrase] [file(s)-or-folder]
+$ croc send --code [code-phrase] [file(s)-or-folder]
 ```

-### Allow overwriting without prompt
-
-By default, croc will prompt whether to overwrite a file. You can automatically overwrite files by using the `--overwrite` flag (recipient only). For example, receive a file to automatically overwrite:
-
-```
-croc --yes --overwrite <code>
-```
-
-
 ### Use pipes - stdin and stdout

 You can pipe to `croc`:

 ```
-cat [filename] | croc send
+$ cat [filename] | croc send
 ```

 In this case `croc` will automatically use the stdin data and send and assign a filename like "croc-stdin-123456789". To receive to `stdout` at you can always just use the `--yes`  will automatically approve the transfer and pipe it out to `stdout`. 

 ```
-croc --yes [code-phrase] > out
+$ croc --yes [code-phrase] > out
 ```

 All of the other text printed to the console is going to `stderr` so it will not interfere with the message going to `stdout`.

-
-### Send text
-
-Sometimes you want to send URLs or short text. In addition to piping, you can easily send text with `croc`:
-
-```
-croc send --text "hello world"
-```
-
-This will automatically tell the receiver to use `stdout` when they receive the text so it will be displayed.
-
-
-### Use a proxy
-
-You can use a proxy as your connection to the relay by adding a proxy address with `--socks5`. For example, you can send via a tor relay:
-
-```
-croc --socks5 "127.0.0.1:9050" send SOMEFILE
-```
-
-### Change encryption curve
-
-You can choose from several different elliptic curves to use for encryption by using the `--curve` flag. Only the recipient can choose the curve. For example, receive a file using the P-521 curve:
-
-```
-croc --curve p521 <codephrase>
-```
-
-Available curves are P-256, P-348, P-521 and SIEC. P-256 is the default curve.
-
-### Change hash algorithm
-
-You can choose from several different hash algorithms. The default is the `xxhash` algorithm which is fast and thorough. If you want to optimize for speed you can use the `imohash` algorithm which is even faster, but since it samples files (versus reading the whole file) it can mistakenly determine that a file is the same on the two computers transferring - though this is only a problem if you are syncing files versus sending a new file to a computer.
-
-```
-croc send --hash imohash SOMEFILE
-```
-
 ### Self-host relay

 The relay is needed to staple the parallel incoming and outgoing connections. By default, `croc` uses a public relay but you can also run your own relay:

 ```
-croc relay
+$ croc relay
 ```

-By default it uses TCP ports 9009-9013. Make sure to open those up. You can customize the ports (e.g. `croc relay --ports 1111,1112`), but you must have a minimum of **2** ports for the relay. The first port is for communication and the subsequent ports are used for the multiplexed data transfer.
+Make sure to open up TCP ports (see `croc relay --help` for which ports to open). 

 You can send files using your relay by entering `--relay` to change the relay that you are using if you want to custom host your own.

 ```
-croc --relay "myrelay.example.com:9009" send [filename]
+$ croc --relay "myrelay.example.com:9009" send [filename]
 ```

-Note, when sending, you only need to include the first port (the communication port). The subsequent ports for data transfer will be transmitted back to the user from the relay.
-
 #### Self-host relay (docker)

 If it's easier you can also run a relay with Docker:


 ```
-docker run -d -p 9009-9013:9009-9013 -e CROC_PASS='YOURPASSWORD' schollz/croc
+$ docker run -d -p 9009:9009 -p 9010:9010 -p 9011:9011 -p 9012:9012 -p 9013:9013 -e CROC_PASS='YOURPASSWORD' schollz/croc
 ```

 Be sure to include the password for the relay otherwise any requests will be rejected. 

 ```
-croc --pass YOURPASSWORD --relay "myreal.example.com:9009" send [filename]
+$ croc --pass YOURPASSWORD --relay "myreal.example.com:9009" send [filename]
 ```

-Note: when including `--pass YOURPASSWORD` you can instead pass a file with the password, e.g. `--pass FILEWITHPASSWORD`.
-
 ## License

 MIT

 ## Acknowledgements

-`croc` has gone through many iterations, and I am awed by all the great contributions! If you feel like contributing, in any way, by all means you can send an Issue, a PR, or ask a question.
+`croc` has been through many iterations, and I am awed by all the great contributions! If you feel like contributing, in any way, by all means you can send an Issue, a PR, ask a question, or tweet me ([@yakczar](http://ctt.ec/Rq054)).

-Thanks [@warner](https://github.com/warner) for the [idea](https://github.com/warner/magic-wormhole), [@tscholl2](https://github.com/tscholl2) for the [encryption gists](https://gist.github.com/tscholl2/dc7dc15dc132ea70a98e8542fefffa28), [@skorokithakis](https://github.com/skorokithakis) for [code on proxying two connections](https://www.stavros.io/posts/proxying-two-connections-go/). Finally thanks for making pull requests [@maximbaz](https://github.com/maximbaz), [@meyermarcel](https://github.com/meyermarcel), [@Girbons](https://github.com/Girbons), [@techtide](https://github.com/techtide), [@heymatthew](https://github.com/heymatthew), [@Lunsford94](https://github.com/Lunsford94), [@lummie](https://github.com/lummie), [@jesuiscamille](https://github.com/jesuiscamille), [@threefjord](https://github.com/threefjord), [@marcossegovia](https://github.com/marcossegovia), [@csleong98](https://github.com/csleong98), [@afotescu](https://github.com/afotescu), [@callmefever](https://github.com/callmefever), [@El-JojA](https://github.com/El-JojA), [@anatolyyyyyy](https://github.com/anatolyyyyyy), [@goggle](https://github.com/goggle), [@smileboywtu](https://github.com/smileboywtu), [@nicolashardy](https://github.com/nicolashardy), [@fbartels](https://github.com/fbartels), [@rkuprov](https://github.com/rkuprov), [@hreese](https://github.com/hreese), [@xenrox](https://github.com/xenrox) and [Ipar](https://github.com/lpar)!
+Thanks [@warner](https://github.com/warner) for the [idea](https://github.com/warner/magic-wormhole), [@tscholl2](https://github.com/tscholl2) for the [encryption gists](https://gist.github.com/tscholl2/dc7dc15dc132ea70a98e8542fefffa28), [@skorokithakis](https://github.com/skorokithakis) for [code on proxying two connections](https://www.stavros.io/posts/proxying-two-connections-go/). Finally thanks for making pull requests [@maximbaz](https://github.com/maximbaz), [@meyermarcel](https://github.com/meyermarcel), [@Girbons](https://github.com/Girbons), [@techtide](https://github.com/techtide), [@heymatthew](https://github.com/heymatthew), [@Lunsford94](https://github.com/Lunsford94), [@lummie](https://github.com/lummie), [@jesuiscamille](https://github.com/jesuiscamille), [@threefjord](https://github.com/threefjord), [@marcossegovia](https://github.com/marcossegovia), [@csleong98](https://github.com/csleong98), [@afotescu](https://github.com/afotescu), [@callmefever](https://github.com/callmefever), [@El-JojA](https://github.com/El-JojA), [@anatolyyyyyy](https://github.com/anatolyyyyyy), [@goggle](https://github.com/goggle), [@smileboywtu](https://github.com/smileboywtu), [@nicolashardy](https://github.com/nicolashardy), [@fbartels](https://github.com/fbartels), [@rkuprov](https://github.com/rkuprov) and [@xenrox](https://github.com/xenrox)!
--- a/croc.service
+++ b/croc.service
@ -1,12 +0,0 @@
-[Unit]
-Description=croc relay
-After=network.target
-
-[Service]
-Type=simple
-DynamicUser=yes
-CapabilityBoundingSet=CAP_NET_BIND_SERVICE
-ExecStart=/usr/bin/croc relay
-
-[Install]
-WantedBy=multi-user.target
--- a/go.mod
+++ b/go.mod
@ -1,39 +1,30 @@
-module github.com/schollz/croc/v10
+module github.com/schollz/croc/v8

-go 1.22
-
-toolchain go1.23.1
+go 1.13

 require (
+	github.com/OneOfOne/xxhash v1.2.5 // indirect
 	github.com/cespare/xxhash v1.1.0
-	github.com/chzyer/readline v1.5.1
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
 	github.com/denisbrodbeck/machineid v1.0.1
-	github.com/kalafut/imohash v1.1.0
-	github.com/magisterquis/connectproxy v0.0.0-20200725203833-3582e84f0c9b
-	github.com/minio/highwayhash v1.0.3
-	github.com/sabhiram/go-gitignore v0.0.0-20210923224102-525f6e181f06
-	github.com/schollz/cli/v2 v2.2.1
+	github.com/fatih/color v1.9.0 // indirect
+	github.com/kalafut/imohash v1.0.0
+	github.com/kr/pretty v0.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.6 // indirect
+	github.com/pkg/errors v0.9.1
 	github.com/schollz/logger v1.2.0
-	github.com/schollz/pake/v3 v3.0.5
-	github.com/schollz/peerdiscovery v1.7.5
-	github.com/schollz/progressbar/v3 v3.17.1
-	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
-	github.com/stretchr/testify v1.9.0
-	golang.org/x/crypto v0.29.0
-	golang.org/x/net v0.31.0
-	golang.org/x/sys v0.27.0
-	golang.org/x/term v0.26.0
-	golang.org/x/time v0.8.0
-)
-
-require (
-	github.com/cpuguy83/go-md2man/v2 v2.0.5 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/tscholl2/siec v0.0.0-20240310163802-c2c6f6198406 // indirect
-	github.com/twmb/murmur3 v1.1.8 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
+	github.com/schollz/mnemonicode v1.0.1
+	github.com/schollz/pake/v2 v2.0.2
+	github.com/schollz/peerdiscovery v1.5.0
+	github.com/schollz/progressbar/v3 v3.0.0
+	github.com/schollz/spinner v0.0.0-20180925172146-6bbc5f7804f9
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/stretchr/testify v1.4.0
+	github.com/tscholl2/siec v0.0.0-20191122224205-8da93652b094
+	github.com/urfave/cli v1.22.3
+	golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59
+	golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e // indirect
+	golang.org/x/text v0.3.2 // indirect
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	gopkg.in/yaml.v2 v2.2.7 // indirect
 )
--- a/go.sum
+++ b/go.sum
@ -1,148 +1,96 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/OneOfOne/xxhash v1.2.5 h1:zl/OfRA6nftbBK9qTohYBJ5xvw6C/oNKizR7cZGl3cI=
+github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/chengxilo/virtualterm v1.0.4 h1:Z6IpERbRVlfB8WkOmtbHiDbBANU7cimRIof7mk9/PwM=
-github.com/chengxilo/virtualterm v1.0.4/go.mod h1:DyxxBZz/x1iqJjFxTFcr6/x+jSpqN0iwWCOK1q10rlY=
-github.com/chzyer/logex v1.2.1 h1:XHDu3E6q+gdHgsdTPH6ImJMIp436vR6MPtH8gP05QzM=
-github.com/chzyer/logex v1.2.1/go.mod h1:JLbx6lG2kDbNRFnfkgvh4eRJRPX1QCoOIWomwysCBrQ=
-github.com/chzyer/readline v1.5.1 h1:upd/6fQk4src78LMRzh5vItIt361/o4uq553V8B5sGI=
-github.com/chzyer/readline v1.5.1/go.mod h1:Eh+b79XXUwfKfcPLepksvw2tcLE/Ct21YObkaSkeBlk=
-github.com/chzyer/test v1.0.0 h1:p3BQDXSxOhOG0P9z6/hGnII4LGiEPOYBhs8asl/fC04=
-github.com/chzyer/test v1.0.0/go.mod h1:2JlltgoNkt4TW/z9V/IzDdFaMTM2JPIi26O1pF38GC8=
 github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
-github.com/cpuguy83/go-md2man/v2 v2.0.5 h1:ZtcqGrnekaHpVLArFSe4HK5DoKx1T0rq2DwVB0alcyc=
-github.com/cpuguy83/go-md2man/v2 v2.0.5/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.0 h1:EoUDS0afbrsXAZ9YQ9jdu/mZ2sXgT1/2yyNng4PGlyM=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/denisbrodbeck/machineid v1.0.1 h1:geKr9qtkB876mXguW2X6TU4ZynleN6ezuMSRhl4D7AQ=
 github.com/denisbrodbeck/machineid v1.0.1/go.mod h1:dJUwb7PTidGDeYyUBmXZ2GphQBbjJCrnectwCyxcUSI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/kalafut/imohash v1.1.0 h1:Lldcmx0SXgMSoABB2WBD8mTgf0OlVnISn2Dyrfg2Ep8=
-github.com/kalafut/imohash v1.1.0/go.mod h1:6cn9lU0Sj8M4eu9UaQm1kR/5y3k/ayB68yntRhGloL4=
-github.com/magisterquis/connectproxy v0.0.0-20200725203833-3582e84f0c9b h1:xZ59n7Frzh8CwyfAapUZLSg+gXH5m63YEaFCMpDHhpI=
-github.com/magisterquis/connectproxy v0.0.0-20200725203833-3582e84f0c9b/go.mod h1:uDd4sYVYsqcxAB8j+Q7uhL6IJCs/r1kxib1HV4bgOMg=
-github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
-github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
-github.com/minio/highwayhash v1.0.3 h1:kbnuUMoHYyVl7szWjSxJnxw11k2U709jqFPPmIUyD6Q=
-github.com/minio/highwayhash v1.0.3/go.mod h1:GGYsuwP/fPD6Y9hMiXuapVvlIUEhFhMTh0rxU3ik1LQ=
+github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
+github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
+github.com/kalafut/imohash v1.0.0 h1:LgCJ+p/BwM2HKpOxFopkeddpzVCfm15EtXMroXD1SYE=
+github.com/kalafut/imohash v1.0.0/go.mod h1:c3RHT80ZAp5C/aYgQI92ZlrOymqkZnRDprU87kg75HI=
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-golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
-golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
-golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
-golang.org/x/term v0.24.0/go.mod h1:lOBK/LVxemqiMij05LGJ0tzNr8xlmwBRJ81PX6wVLH8=
-golang.org/x/term v0.26.0 h1:WEQa6V3Gja/BhNxg540hBip/kkaYtRg3cxg4oXSw4AU=
-golang.org/x/term v0.26.0/go.mod h1:Si5m1o57C5nBNQo5z1iq+XDijt21BDBDp2bK0QI8e3E=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200117145432-59e60aa80a0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
+golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd h1:xhmwyvizuTgC2qz7ZlMluP20uW+C3Rm0FD/WLDX8884=
+golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
-golang.org/x/time v0.8.0 h1:9i3RxcPv3PZnitoVGMPDKZSq1xW1gK1Xy3ArNOGZfEg=
-golang.org/x/time v0.8.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/tylerb/is.v1 v1.1.2 h1:AB/MANFml2ySf+adwcinvajyHvsYltAOD+rb/8njfSU=
+gopkg.in/tylerb/is.v1 v1.1.2/go.mod h1:9yQB2tyIhZ5oph6Kk5Sq7cJMd9c5Jpa1p3hr9kxzPqo=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v2 v2.2.7 h1:VUgggvou5XRW9mHwD/yXxIYSMtY0zoKQf/v226p2nyo=
+gopkg.in/yaml.v2 v2.2.7/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
--- a/.goreleaser.yml
+++ b/.goreleaser.yml
@ -18,13 +18,10 @@ build:
    - 386
    - arm
    - arm64
-  ignore:
-    - goos: darwin
-      goarch: 386
-    - goos: freebsd
-      goarch: arm
  goarm:
    - 7
+  hooks:
+    post: sh ./src/install/prepare-sources-tarball.sh
 nfpms:
  -
    formats:
@ -69,12 +66,10 @@ archives:
    files:
      - README.md
      - LICENSE
-      - zsh_autocomplete
-      - bash_autocomplete

 brews:
  -
-    tap:
+    github:
      owner: schollz
      name: homebrew-tap
    folder: Formula
@ -93,8 +88,17 @@ scoop:
  homepage: "https://schollz.com/software/croc/"
  description: "croc is a tool that allows any two computers to simply and securely transfer files and folders."
  license: MIT
-announce:
-  twitter:
-    # Wether its enabled or not.
-    # Defaults to false.
-    enabled: false
+
+snapcrafts:
+  -
+    id: croc
+    publish: true
+    summary: "croc is a tool that allows any two computers to simply and securely transfer files and folders."
+    description: "Use croc to send and receive files from the command line."
+    grade: stable
+    confinement: strict
+    license: MIT
+    base: core18
+    apps:
+            croc:
+                    plugs: ["home", "network", "removable-media","network-bind"]
--- a/main.go
+++ b/main.go
@ -1,17 +1,14 @@
 package main

+//go:generate git tag -af v$VERSION -m "v$VERSION"
 //go:generate go run src/install/updateversion.go
 //go:generate git commit -am "bump $VERSION"
 //go:generate git tag -af v$VERSION -m "v$VERSION"

 import (
 	"fmt"
-	"os"
-	"os/signal"
-	"syscall"

-	"github.com/schollz/croc/v10/src/cli"
-	"github.com/schollz/croc/v10/src/utils"
+	"github.com/schollz/croc/v8/src/cli"
 )

 func main() {
@ -31,25 +28,7 @@ func main() {
 	// 		fmt.Println("wrote profile")
 	// 	}
 	// }()
-
-	// Create a channel to receive OS signals
-	sigs := make(chan os.Signal, 1)
-	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
-
-	go func() {
-		if err := cli.Run(); err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-		// Exit the program gracefully
-		utils.RemoveMarkedFiles()
-		os.Exit(0)
-	}()
-
-	// Wait for a termination signal
-	_ = <-sigs
-	utils.RemoveMarkedFiles()
-
-	// Exit the program gracefully
-	os.Exit(0)
+	if err := cli.Run(); err != nil {
+		fmt.Println(err)
+	}
 }
--- a/src/cli/cli.go
+++ b/src/cli/cli.go
@ -5,30 +5,26 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/ioutil"
 	"os"
 	"path"
 	"path/filepath"
 	"runtime"
-	"strconv"
 	"strings"
 	"time"

-	"github.com/chzyer/readline"
-	"github.com/schollz/cli/v2"
-	"github.com/schollz/croc/v10/src/comm"
-	"github.com/schollz/croc/v10/src/croc"
-	"github.com/schollz/croc/v10/src/mnemonicode"
-	"github.com/schollz/croc/v10/src/models"
-	"github.com/schollz/croc/v10/src/tcp"
-	"github.com/schollz/croc/v10/src/utils"
+	"github.com/schollz/croc/v8/src/croc"
+	"github.com/schollz/croc/v8/src/models"
+	"github.com/schollz/croc/v8/src/tcp"
+	"github.com/schollz/croc/v8/src/utils"
 	log "github.com/schollz/logger"
-	"github.com/schollz/pake/v3"
+	"github.com/urfave/cli"
 )

 // Version specifies the version
 var Version string

-// Run will run the command line program
+// Run will run the command line proram
 func Run() (err error) {
 	// use all of the processors
 	runtime.GOMAXPROCS(runtime.NumCPU())
@ -36,197 +32,102 @@ func Run() (err error) {
 	app := cli.NewApp()
 	app.Name = "croc"
 	if Version == "" {
-		Version = "v10.1.0"
+		Version = "v8.0.5-97bf35b"
 	}
 	app.Version = Version
 	app.Compiled = time.Now()
 	app.Usage = "easily and securely transfer stuff from one computer to another"
-	app.UsageText = `croc [GLOBAL OPTIONS] [COMMAND] [COMMAND OPTIONS] [filename(s) or folder]
-
-   USAGE EXAMPLES:
-   Send a file:
+	app.UsageText = `Send a file:
      croc send file.txt

-      -git to respect your .gitignore
-   Send multiple files:
-      croc send file1.txt file2.txt file3.txt
-    or
-      croc send *.jpg
-
-   Send everything in a folder:
-      croc send example-folder-name
-
   Send a file with a custom code:
-      croc send --code secret-code file.txt
-
-   Receive a file using code:
-      croc secret-code`
-	app.Commands = []*cli.Command{
+      croc send --code secret-passphrase file.txt`
+	app.Commands = []cli.Command{
 		{
 			Name:        "send",
-			Usage:       "send file(s), or folder (see options with croc send -h)",
-			Description: "send file(s), or folder, over the relay",
-			ArgsUsage:   "[filename(s) or folder]",
+			Usage:       "send a file (see options with croc send -h)",
+			Description: "send a file over the relay",
+			ArgsUsage:   "[filename]",
 			Flags: []cli.Flag{
-				&cli.BoolFlag{Name: "zip", Usage: "zip folder before sending"},
-				&cli.StringFlag{Name: "code", Aliases: []string{"c"}, Usage: "codephrase used to connect to relay"},
-				&cli.StringFlag{Name: "hash", Value: "xxhash", Usage: "hash algorithm (xxhash, imohash, md5)"},
-				&cli.StringFlag{Name: "text", Aliases: []string{"t"}, Usage: "send some text"},
-				&cli.BoolFlag{Name: "no-local", Usage: "disable local relay when sending"},
-				&cli.BoolFlag{Name: "no-multi", Usage: "disable multiplexing"},
-				&cli.BoolFlag{Name: "git", Usage: "enable .gitignore respect / don't send ignored files"},
-				&cli.IntFlag{Name: "port", Value: 9009, Usage: "base port for the relay"},
-				&cli.IntFlag{Name: "transfers", Value: 4, Usage: "number of ports to use for transfers"},
-				&cli.BoolFlag{Name: "qrcode", Aliases: []string{"qr"}, Usage: "show receive code as a qrcode"},
+				cli.StringFlag{Name: "code, c", Usage: "codephrase used to connect to relay"},
+				cli.BoolFlag{Name: "no-local", Usage: "disable local relay when sending"},
+				cli.BoolFlag{Name: "no-multi", Usage: "disable multiplexing"},
+				cli.StringFlag{Name: "ports", Value: "9009,9010,9011,9012,9013", Usage: "ports of the local relay (optional)"},
 			},
 			HelpName: "croc send",
-			Action:   send,
+			Action: func(c *cli.Context) error {
+				return send(c)
+			},
 		},
 		{
 			Name:        "relay",
 			Usage:       "start your own relay (optional)",
 			Description: "start relay",
 			HelpName:    "croc relay",
-			Action:      relay,
+			Action: func(c *cli.Context) error {
+				return relay(c)
+			},
 			Flags: []cli.Flag{
-				&cli.StringFlag{Name: "host", Usage: "host of the relay"},
-				&cli.StringFlag{Name: "ports", Value: "9009,9010,9011,9012,9013", Usage: "ports of the relay"},
-				&cli.IntFlag{Name: "port", Value: 9009, Usage: "base port for the relay"},
-				&cli.IntFlag{Name: "transfers", Value: 5, Usage: "number of ports to use for relay"},
+				cli.StringFlag{Name: "ports", Value: "9009,9010,9011,9012,9013", Usage: "ports of the relay"},
 			},
 		},
 	}
 	app.Flags = []cli.Flag{
-		&cli.BoolFlag{Name: "internal-dns", Usage: "use a built-in DNS stub resolver rather than the host operating system"},
-		&cli.BoolFlag{Name: "classic", Usage: "toggle between the classic mode (insecure due to local attack vector) and new mode (secure)"},
-		&cli.BoolFlag{Name: "remember", Usage: "save these settings to reuse next time"},
-		&cli.BoolFlag{Name: "debug", Usage: "toggle debug mode"},
-		&cli.BoolFlag{Name: "yes", Usage: "automatically agree to all prompts"},
-		&cli.BoolFlag{Name: "stdout", Usage: "redirect file to stdout"},
-		&cli.BoolFlag{Name: "no-compress", Usage: "disable compression"},
-		&cli.BoolFlag{Name: "ask", Usage: "make sure sender and recipient are prompted"},
-		&cli.BoolFlag{Name: "local", Usage: "force to use only local connections"},
-		&cli.BoolFlag{Name: "ignore-stdin", Usage: "ignore piped stdin"},
-		&cli.BoolFlag{Name: "overwrite", Usage: "do not prompt to overwrite or resume"},
-		&cli.BoolFlag{Name: "testing", Usage: "flag for testing purposes"},
-		&cli.StringFlag{Name: "multicast", Value: "239.255.255.250", Usage: "multicast address to use for local discovery"},
-		&cli.StringFlag{Name: "curve", Value: "p256", Usage: "choose an encryption curve (" + strings.Join(pake.AvailableCurves(), ", ") + ")"},
-		&cli.StringFlag{Name: "ip", Value: "", Usage: "set sender ip if known e.g. 10.0.0.1:9009, [::1]:9009"},
-		&cli.StringFlag{Name: "relay", Value: models.DEFAULT_RELAY, Usage: "address of the relay", EnvVars: []string{"CROC_RELAY"}},
-		&cli.StringFlag{Name: "relay6", Value: models.DEFAULT_RELAY6, Usage: "ipv6 address of the relay", EnvVars: []string{"CROC_RELAY6"}},
-		&cli.StringFlag{Name: "out", Value: ".", Usage: "specify an output folder to receive the file"},
-		&cli.StringFlag{Name: "pass", Value: models.DEFAULT_PASSPHRASE, Usage: "password for the relay", EnvVars: []string{"CROC_PASS"}},
-		&cli.StringFlag{Name: "socks5", Value: "", Usage: "add a socks5 proxy", EnvVars: []string{"SOCKS5_PROXY"}},
-		&cli.StringFlag{Name: "connect", Value: "", Usage: "add a http proxy", EnvVars: []string{"HTTP_PROXY"}},
-		&cli.StringFlag{Name: "throttleUpload", Value: "", Usage: "Throttle the upload speed e.g. 500k"},
+		cli.BoolFlag{Name: "remember", Usage: "save these settings to reuse next time"},
+		cli.BoolFlag{Name: "debug", Usage: "toggle debug mode"},
+		cli.BoolFlag{Name: "yes", Usage: "automatically agree to all prompts"},
+		cli.BoolFlag{Name: "stdout", Usage: "redirect file to stdout"},
+		cli.BoolFlag{Name: "ask", Usage: "make sure sender and recipient are prompted"},
+		cli.StringFlag{Name: "relay", Value: models.DEFAULT_RELAY, Usage: "address of the relay"},
+		cli.StringFlag{Name: "out", Value: ".", Usage: "specify an output folder to receive the file"},
+		cli.StringFlag{Name: "pass", Value: "pass123", Usage: "password for the relay"},
 	}
 	app.EnableBashCompletion = true
 	app.HideHelp = false
 	app.HideVersion = false
+	app.BashComplete = func(c *cli.Context) {
+		fmt.Fprintf(c.App.Writer, "send\nreceive\relay")
+	}
 	app.Action = func(c *cli.Context) error {
-		allStringsAreFiles := func(strs []string) bool {
-			for _, str := range strs {
-				if !utils.Exists(str) {
-					return false
-				}
-			}
-			return true
-		}
-
-		// check if "classic" is set
-		classicFile := getClassicConfigFile(true)
-		classicInsecureMode := utils.Exists(classicFile)
-		if c.Bool("classic") {
-			if classicInsecureMode {
-				// classic mode not enabled
-				fmt.Print(`Classic mode is currently ENABLED.
-				
-Disabling this mode will prevent the shared secret from being visible
-on the host's process list when passed via the command line. On a
-multi-user system, this will help ensure that other local users cannot
-access the shared secret and receive the files instead of the intended
-recipient.
-
-Do you wish to continue to DISABLE the classic mode? (y/N) `)
-				choice := strings.ToLower(utils.GetInput(""))
-				if choice == "y" || choice == "yes" {
-					os.Remove(classicFile)
-					fmt.Print("\nClassic mode DISABLED.\n\n")
-					fmt.Print(`To send and receive, export the CROC_SECRET variable with the code phrase:
-
-  Send:    CROC_SECRET=*** croc send file.txt
-
-  Receive: CROC_SECRET=*** croc` + "\n\n")
-				} else {
-					fmt.Print("\nClassic mode ENABLED.\n")
-
-				}
-			} else {
-				// enable classic mode
-				// touch the file
-				fmt.Print(`Classic mode is currently DISABLED.
-				
-Please note that enabling this mode will make the shared secret visible
-on the host's process list when passed via the command line. On a
-multi-user system, this could allow other local users to access the
-shared secret and receive the files instead of the intended recipient.
-
-Do you wish to continue to enable the classic mode? (y/N) `)
-				choice := strings.ToLower(utils.GetInput(""))
-				if choice == "y" || choice == "yes" {
-					fmt.Print("\nClassic mode ENABLED.\n\n")
-					os.WriteFile(classicFile, []byte("enabled"), 0o644)
-					fmt.Print(`To send and receive, use the code phrase:
-
-  Send:    croc send --code *** file.txt
-
-  Receive: croc ***` + "\n\n")
-				} else {
-					fmt.Print("\nClassic mode DISABLED.\n")
-				}
-			}
-			os.Exit(0)
-		}
-
 		// if trying to send but forgot send, let the user know
-		if c.Args().Present() && allStringsAreFiles(c.Args().Slice()) {
-			fnames := []string{}
-			for _, fpath := range c.Args().Slice() {
-				_, basename := filepath.Split(fpath)
-				fnames = append(fnames, "'"+basename+"'")
-			}
-			promptMessage := fmt.Sprintf("Did you mean to send %s? (Y/n) ", strings.Join(fnames, ", "))
-			choice := strings.ToLower(utils.GetInput(promptMessage))
-			if choice == "" || choice == "y" || choice == "yes" {
+		if c.Args().First() != "" && utils.Exists(c.Args().First()) {
+			_, fname := filepath.Split(c.Args().First())
+			yn := utils.GetInput(fmt.Sprintf("Did you mean to send '%s'? (y/n) ", fname))
+			if strings.ToLower(yn) == "y" {
 				return send(c)
 			}
 		}
-
 		return receive(c)
 	}

 	return app.Run(os.Args)
 }

+func getConfigDir() (homedir string, err error) {
+	homedir, err = os.UserHomeDir()
+	if err != nil {
+		log.Error(err)
+		return
+	}
+	homedir = path.Join(homedir, ".config", "croc")
+	if _, err = os.Stat(homedir); os.IsNotExist(err) {
+		log.Debugf("creating home directory %s", homedir)
+		err = os.MkdirAll(homedir, 0700)
+	}
+	return
+}
+
 func setDebugLevel(c *cli.Context) {
-	if c.Bool("debug") {
+	if c.GlobalBool("debug") {
 		log.SetLevel("debug")
 		log.Debug("debug mode on")
-		// print the public IP address
-		ip, err := utils.PublicIP()
-		if err == nil {
-			log.Debugf("public IP address: %s", ip)
-		} else {
-			log.Debug(err)
-		}
-
 	} else {
 		log.SetLevel("info")
 	}
 }

-func getSendConfigFile(requireValidPath bool) string {
-	configFile, err := utils.GetConfigDir(requireValidPath)
+func getConfigFile() string {
+	configFile, err := getConfigDir()
 	if err != nil {
 		log.Error(err)
 		return ""
@ -234,85 +135,23 @@ func getSendConfigFile(requireValidPath bool) string {
 	return path.Join(configFile, "send.json")
 }

-func getClassicConfigFile(requireValidPath bool) string {
-	configFile, err := utils.GetConfigDir(requireValidPath)
-	if err != nil {
-		log.Error(err)
-		return ""
-	}
-	return path.Join(configFile, "classic_enabled")
-}
-
-func getReceiveConfigFile(requireValidPath bool) (string, error) {
-	configFile, err := utils.GetConfigDir(requireValidPath)
-	if err != nil {
-		log.Error(err)
-		return "", err
-	}
-	return path.Join(configFile, "receive.json"), nil
-}
-
-func determinePass(c *cli.Context) (pass string) {
-	pass = c.String("pass")
-	b, err := os.ReadFile(pass)
-	if err == nil {
-		pass = strings.TrimSpace(string(b))
-	}
-	return
-}
-
 func send(c *cli.Context) (err error) {
 	setDebugLevel(c)
-	comm.Socks5Proxy = c.String("socks5")
-	comm.HttpProxy = c.String("connect")
-
-	portParam := c.Int("port")
-	if portParam == 0 {
-		portParam = 9009
-	}
-	transfersParam := c.Int("transfers")
-	if transfersParam == 0 {
-		transfersParam = 4
-	}
-
-	ports := make([]string, transfersParam+1)
-	for i := 0; i <= transfersParam; i++ {
-		ports[i] = strconv.Itoa(portParam + i)
-	}
-
 	crocOptions := croc.Options{
-		SharedSecret:     c.String("code"),
-		IsSender:         true,
-		Debug:            c.Bool("debug"),
-		NoPrompt:         c.Bool("yes"),
-		RelayAddress:     c.String("relay"),
-		RelayAddress6:    c.String("relay6"),
-		Stdout:           c.Bool("stdout"),
-		DisableLocal:     c.Bool("no-local"),
-		OnlyLocal:        c.Bool("local"),
-		IgnoreStdin:      c.Bool("ignore-stdin"),
-		RelayPorts:       ports,
-		Ask:              c.Bool("ask"),
-		NoMultiplexing:   c.Bool("no-multi"),
-		RelayPassword:    determinePass(c),
-		SendingText:      c.String("text") != "",
-		NoCompress:       c.Bool("no-compress"),
-		Overwrite:        c.Bool("overwrite"),
-		Curve:            c.String("curve"),
-		HashAlgorithm:    c.String("hash"),
-		ThrottleUpload:   c.String("throttleUpload"),
-		ZipFolder:        c.Bool("zip"),
-		GitIgnore:        c.Bool("git"),
-		ShowQrCode:       c.Bool("qrcode"),
-		MulticastAddress: c.String("multicast"),
+		SharedSecret:   c.String("code"),
+		IsSender:       true,
+		Debug:          c.GlobalBool("debug"),
+		NoPrompt:       c.GlobalBool("yes"),
+		RelayAddress:   c.GlobalString("relay"),
+		Stdout:         c.GlobalBool("stdout"),
+		DisableLocal:   c.Bool("no-local"),
+		RelayPorts:     strings.Split(c.String("ports"), ","),
+		Ask:            c.GlobalBool("ask"),
+		NoMultiplexing: c.Bool("no-multi"),
+		RelayPassword:  c.GlobalString("pass"),
 	}
-	if crocOptions.RelayAddress != models.DEFAULT_RELAY {
-		crocOptions.RelayAddress6 = ""
-	} else if crocOptions.RelayAddress6 != models.DEFAULT_RELAY6 {
-		crocOptions.RelayAddress = ""
-	}
-	b, errOpen := os.ReadFile(getSendConfigFile(false))
-	if errOpen == nil && !c.Bool("remember") {
+	b, errOpen := ioutil.ReadFile(getConfigFile())
+	if errOpen == nil && !c.GlobalBool("remember") {
 		var rememberedOptions croc.Options
 		err = json.Unmarshal(b, &rememberedOptions)
 		if err != nil {
@ -320,105 +159,49 @@ func send(c *cli.Context) (err error) {
 			return
 		}
 		// update anything that isn't explicitly set
-		if !c.IsSet("relay") && rememberedOptions.RelayAddress != "" {
+		if !c.GlobalIsSet("relay") {
 			crocOptions.RelayAddress = rememberedOptions.RelayAddress
 		}
 		if !c.IsSet("no-local") {
 			crocOptions.DisableLocal = rememberedOptions.DisableLocal
 		}
-		if !c.IsSet("ports") && len(rememberedOptions.RelayPorts) > 0 {
+		if !c.IsSet("ports") {
 			crocOptions.RelayPorts = rememberedOptions.RelayPorts
 		}
 		if !c.IsSet("code") {
 			crocOptions.SharedSecret = rememberedOptions.SharedSecret
 		}
-		if !c.IsSet("pass") && rememberedOptions.RelayPassword != "" {
+		if !c.GlobalIsSet("pass") {
 			crocOptions.RelayPassword = rememberedOptions.RelayPassword
 		}
-		if !c.IsSet("relay6") && rememberedOptions.RelayAddress6 != "" {
-			crocOptions.RelayAddress6 = rememberedOptions.RelayAddress6
-		}
-		if !c.IsSet("overwrite") {
-			crocOptions.Overwrite = rememberedOptions.Overwrite
-		}
-		if !c.IsSet("curve") && rememberedOptions.Curve != "" {
-			crocOptions.Curve = rememberedOptions.Curve
-		}
-		if !c.IsSet("local") {
-			crocOptions.OnlyLocal = rememberedOptions.OnlyLocal
-		}
-		if !c.IsSet("hash") {
-			crocOptions.HashAlgorithm = rememberedOptions.HashAlgorithm
-		}
-		if !c.IsSet("git") {
-			crocOptions.GitIgnore = rememberedOptions.GitIgnore
-		}
 	}

 	var fnames []string
 	stat, _ := os.Stdin.Stat()
-	if ((stat.Mode() & os.ModeCharDevice) == 0) && !c.Bool("ignore-stdin") {
+	if (stat.Mode() & os.ModeCharDevice) == 0 {
 		fnames, err = getStdin()
 		if err != nil {
 			return
 		}
-		utils.MarkFileForRemoval(fnames[0])
 		defer func() {
-			e := os.Remove(fnames[0])
-			if e != nil {
-				log.Error(e)
+			err = os.Remove(fnames[0])
+			if err != nil {
+				log.Error(err)
 			}
 		}()
-	} else if c.String("text") != "" {
-		fnames, err = makeTempFileWithString(c.String("text"))
-		if err != nil {
-			return
-		}
-		utils.MarkFileForRemoval(fnames[0])
-		defer func() {
-			e := os.Remove(fnames[0])
-			if e != nil {
-				log.Error(e)
-			}
-		}()
-
 	} else {
-		fnames = c.Args().Slice()
+		fnames = append([]string{c.Args().First()}, c.Args().Tail()...)
 	}
 	if len(fnames) == 0 {
-		return errors.New("must specify file: croc send [filename(s) or folder]")
-	}
-
-	classicInsecureMode := utils.Exists(getClassicConfigFile(true))
-	if !classicInsecureMode {
-		// if operating system is UNIX, then use environmental variable to set the code
-		if (!(runtime.GOOS == "windows") && c.IsSet("code")) || os.Getenv("CROC_SECRET") != "" {
-			crocOptions.SharedSecret = os.Getenv("CROC_SECRET")
-			if crocOptions.SharedSecret == "" {
-				fmt.Printf(`On UNIX systems, to send with a custom code phrase, 
-you need to set the environmental variable CROC_SECRET:
-
-  CROC_SECRET=**** croc send file.txt
-
-Or you can have the code phrase automatically generated:
-
-  croc send file.txt
-	
-Or you can go back to the classic croc behavior by enabling classic mode:
-
-  croc --classic
-
-`)
-				os.Exit(0)
-			}
-		}
+		return errors.New("must specify file: croc send [filename]")
 	}

 	if len(crocOptions.SharedSecret) == 0 {
 		// generate code phrase
 		crocOptions.SharedSecret = utils.GetRandomName()
 	}
-	minimalFileInfos, emptyFoldersToTransfer, totalNumberFolders, err := croc.GetFilesInfo(fnames, crocOptions.ZipFolder, crocOptions.GitIgnore)
+
+	paths, haveFolder, err := getPaths(fnames)
 	if err != nil {
 		return
 	}
@ -431,13 +214,16 @@ Or you can go back to the classic croc behavior by enabling classic mode:
 	// save the config
 	saveConfig(c, crocOptions)

-	err = cr.Send(minimalFileInfos, emptyFoldersToTransfer, totalNumberFolders)
+	err = cr.Send(croc.TransferOptions{
+		PathToFiles:      paths,
+		KeepPathInRemote: haveFolder,
+	})

 	return
 }

 func getStdin() (fnames []string, err error) {
-	f, err := os.CreateTemp(".", "croc-stdin-")
+	f, err := ioutil.TempFile(".", "croc-stdin-")
 	if err != nil {
 		return
 	}
@ -453,28 +239,40 @@ func getStdin() (fnames []string, err error) {
 	return
 }

-func makeTempFileWithString(s string) (fnames []string, err error) {
-	f, err := os.CreateTemp(".", "croc-stdin-")
-	if err != nil {
-		return
+func getPaths(fnames []string) (paths []string, haveFolder bool, err error) {
+	haveFolder = false
+	paths = []string{}
+	for _, fname := range fnames {
+		stat, errStat := os.Stat(fname)
+		if errStat != nil {
+			err = errStat
+			return
+		}
+		if stat.IsDir() {
+			haveFolder = true
+			err = filepath.Walk(fname,
+				func(pathName string, info os.FileInfo, err error) error {
+					if err != nil {
+						return err
+					}
+					if !info.IsDir() {
+						paths = append(paths, filepath.ToSlash(pathName))
+					}
+					return nil
+				})
+			if err != nil {
+				return
+			}
+		} else {
+			paths = append(paths, filepath.ToSlash(fname))
+		}
 	}
-
-	_, err = f.WriteString(s)
-	if err != nil {
-		return
-	}
-
-	err = f.Close()
-	if err != nil {
-		return
-	}
-	fnames = []string{f.Name()}
 	return
 }

 func saveConfig(c *cli.Context, crocOptions croc.Options) {
-	if c.Bool("remember") {
-		configFile := getSendConfigFile(true)
+	if c.GlobalBool("remember") {
+		configFile := getConfigFile()
 		log.Debug("saving config file")
 		var bConfig []byte
 		// if the code wasn't set, don't save it
@ -486,7 +284,7 @@ func saveConfig(c *cli.Context, crocOptions croc.Options) {
 			log.Error(err)
 			return
 		}
-		err = os.WriteFile(configFile, bConfig, 0o644)
+		err = ioutil.WriteFile(configFile, bConfig, 0644)
 		if err != nil {
 			log.Error(err)
 			return
@ -495,68 +293,22 @@ func saveConfig(c *cli.Context, crocOptions croc.Options) {
 	}
 }

-type TabComplete struct{}
-
-func (t TabComplete) Do(line []rune, pos int) ([][]rune, int) {
-	var words = strings.SplitAfter(string(line), "-")
-	var lastPartialWord = words[len(words)-1]
-	var nbCharacter = len(lastPartialWord)
-	if nbCharacter == 0 {
-		// No completion
-		return [][]rune{[]rune("")}, 0
-	}
-	if len(words) == 1 && nbCharacter == utils.NbPinNumbers {
-		// Check if word is indeed a number
-		_, err := strconv.Atoi(lastPartialWord)
-		if err == nil {
-			return [][]rune{[]rune("-")}, nbCharacter
-		}
-	}
-	var strArray [][]rune
-	for _, s := range mnemonicode.WordList {
-		if strings.HasPrefix(s, lastPartialWord) {
-			var completionCandidate = s[nbCharacter:]
-			if len(words) <= mnemonicode.WordsRequired(utils.NbBytesWords) {
-				completionCandidate += "-"
-			}
-			strArray = append(strArray, []rune(completionCandidate))
-		}
-	}
-	return strArray, nbCharacter
-}
-
 func receive(c *cli.Context) (err error) {
-	comm.Socks5Proxy = c.String("socks5")
-	comm.HttpProxy = c.String("connect")
 	crocOptions := croc.Options{
-		SharedSecret:     c.String("code"),
-		IsSender:         false,
-		Debug:            c.Bool("debug"),
-		NoPrompt:         c.Bool("yes"),
-		RelayAddress:     c.String("relay"),
-		RelayAddress6:    c.String("relay6"),
-		Stdout:           c.Bool("stdout"),
-		Ask:              c.Bool("ask"),
-		RelayPassword:    determinePass(c),
-		OnlyLocal:        c.Bool("local"),
-		IP:               c.String("ip"),
-		Overwrite:        c.Bool("overwrite"),
-		Curve:            c.String("curve"),
-		TestFlag:         c.Bool("testing"),
-		MulticastAddress: c.String("multicast"),
-	}
-	if crocOptions.RelayAddress != models.DEFAULT_RELAY {
-		crocOptions.RelayAddress6 = ""
-	} else if crocOptions.RelayAddress6 != models.DEFAULT_RELAY6 {
-		crocOptions.RelayAddress = ""
+		SharedSecret:  c.String("code"),
+		IsSender:      false,
+		Debug:         c.GlobalBool("debug"),
+		NoPrompt:      c.GlobalBool("yes"),
+		RelayAddress:  c.GlobalString("relay"),
+		Stdout:        c.GlobalBool("stdout"),
+		Ask:           c.GlobalBool("ask"),
+		RelayPassword: c.GlobalString("pass"),
 	}

-	switch c.Args().Len() {
+	switch len(c.Args()) {
 	case 1:
 		crocOptions.SharedSecret = c.Args().First()
 	case 3:
-		fallthrough
-	case 4:
 		var phrase []string
 		phrase = append(phrase, c.Args().First())
 		phrase = append(phrase, c.Args().Tail()...)
@ -565,89 +317,40 @@ func receive(c *cli.Context) (err error) {

 	// load options here
 	setDebugLevel(c)
-
-	doRemember := c.Bool("remember")
-	configFile, err := getReceiveConfigFile(doRemember)
-	if err != nil && doRemember {
+	configFile, err := getConfigDir()
+	if err != nil {
+		log.Error(err)
 		return
 	}
-	b, errOpen := os.ReadFile(configFile)
-	if errOpen == nil && !doRemember {
+	configFile = path.Join(configFile, "receive.json")
+	b, errOpen := ioutil.ReadFile(configFile)
+	if errOpen == nil && !c.GlobalBool("remember") {
 		var rememberedOptions croc.Options
 		err = json.Unmarshal(b, &rememberedOptions)
 		if err != nil {
 			log.Error(err)
 			return
 		}
-		// update anything that isn't explicitly Globally set
-		if !c.IsSet("relay") && rememberedOptions.RelayAddress != "" {
+		// update anything that isn't explicitly set
+		if !c.GlobalIsSet("relay") {
 			crocOptions.RelayAddress = rememberedOptions.RelayAddress
 		}
-		if !c.IsSet("yes") {
+		if !c.GlobalIsSet("yes") {
 			crocOptions.NoPrompt = rememberedOptions.NoPrompt
 		}
 		if crocOptions.SharedSecret == "" {
 			crocOptions.SharedSecret = rememberedOptions.SharedSecret
 		}
-		if !c.IsSet("pass") && rememberedOptions.RelayPassword != "" {
+		if !c.GlobalIsSet("pass") {
 			crocOptions.RelayPassword = rememberedOptions.RelayPassword
 		}
-		if !c.IsSet("relay6") && rememberedOptions.RelayAddress6 != "" {
-			crocOptions.RelayAddress6 = rememberedOptions.RelayAddress6
-		}
-		if !c.IsSet("overwrite") {
-			crocOptions.Overwrite = rememberedOptions.Overwrite
-		}
-		if !c.IsSet("curve") && rememberedOptions.Curve != "" {
-			crocOptions.Curve = rememberedOptions.Curve
-		}
-		if !c.IsSet("local") {
-			crocOptions.OnlyLocal = rememberedOptions.OnlyLocal
-		}
 	}

-	classicInsecureMode := utils.Exists(getClassicConfigFile(true))
-	if crocOptions.SharedSecret == "" && os.Getenv("CROC_SECRET") != "" {
-		crocOptions.SharedSecret = os.Getenv("CROC_SECRET")
-	} else if !(runtime.GOOS == "windows") && crocOptions.SharedSecret != "" && !classicInsecureMode {
-		crocOptions.SharedSecret = os.Getenv("CROC_SECRET")
-		if crocOptions.SharedSecret == "" {
-			fmt.Printf(`On UNIX systems, to receive with croc you either need 
-to set a code phrase using your environmental variables:
-	
-  CROC_SECRET=**** croc 
-
-Or you can specify the code phrase when you run croc without
-declaring the secret on the command line:
-
-  croc 
-  Enter receive code: ****
-
-Or you can go back to the classic croc behavior by enabling classic mode:
-
-  croc --classic
-
-`)
-			os.Exit(0)
-		}
-	}
 	if crocOptions.SharedSecret == "" {
-		l, err := readline.NewEx(&readline.Config{
-			Prompt:       "Enter receive code: ",
-			AutoComplete: TabComplete{},
-		})
-		if err != nil {
-			return err
-		}
-		crocOptions.SharedSecret, err = l.Readline()
-		if err != nil {
-			return err
-		}
+		crocOptions.SharedSecret = utils.GetInput("Enter receive code: ")
 	}
-	if c.String("out") != "" {
-		if err = os.Chdir(c.String("out")); err != nil {
-			return err
-		}
+	if c.GlobalString("out") != "" {
+		os.Chdir(c.GlobalString("out"))
 	}

 	cr, err := croc.New(crocOptions)
@ -656,7 +359,7 @@ Or you can go back to the classic croc behavior by enabling classic mode:
 	}

 	// save the config
-	if doRemember {
+	if c.GlobalBool("remember") {
 		log.Debug("saving config file")
 		var bConfig []byte
 		bConfig, err = json.MarshalIndent(crocOptions, "", "    ")
@ -664,7 +367,7 @@ Or you can go back to the classic croc behavior by enabling classic mode:
 			log.Error(err)
 			return
 		}
-		err = os.WriteFile(configFile, bConfig, 0o644)
+		err = ioutil.WriteFile(configFile, bConfig, 0644)
 		if err != nil {
 			log.Error(err)
 			return
@ -677,42 +380,22 @@ Or you can go back to the classic croc behavior by enabling classic mode:
 }

 func relay(c *cli.Context) (err error) {
-	log.Infof("starting croc relay version %v", Version)
 	debugString := "info"
-	if c.Bool("debug") {
+	if c.GlobalBool("debug") {
 		debugString = "debug"
 	}
-	host := c.String("host")
-	var ports []string
-
-	if c.IsSet("ports") {
-		ports = strings.Split(c.String("ports"), ",")
-	} else {
-		portString := c.Int("port")
-		if portString == 0 {
-			portString = 9009
-		}
-		transfersString := c.Int("transfers")
-		if transfersString == 0 {
-			transfersString = 4
-		}
-		ports = make([]string, transfersString)
-		for i := range ports {
-			ports[i] = strconv.Itoa(portString + i)
-		}
-	}
-
+	ports := strings.Split(c.String("ports"), ",")
 	tcpPorts := strings.Join(ports[1:], ",")
 	for i, port := range ports {
 		if i == 0 {
 			continue
 		}
 		go func(portStr string) {
-			err := tcp.Run(debugString, host, portStr, determinePass(c))
+			err = tcp.Run(debugString, portStr, c.GlobalString("pass"))
 			if err != nil {
 				panic(err)
 			}
 		}(port)
 	}
-	return tcp.Run(debugString, host, ports[0], determinePass(c), tcpPorts)
+	return tcp.Run(debugString, ports[0], c.GlobalString("pass"), tcpPorts)
 }
--- a/src/comm/comm.go
+++ b/src/comm/comm.go
@ -4,22 +4,14 @@ import (
 	"bytes"
 	"encoding/binary"
 	"fmt"
-	"io"
 	"net"
-	"net/url"
-	"strings"
 	"time"

-	"github.com/magisterquis/connectproxy"
-	"github.com/schollz/croc/v10/src/utils"
-	log "github.com/schollz/logger"
-	"golang.org/x/net/proxy"
+	"github.com/pkg/errors"
+	"github.com/schollz/logger"
 )

-var Socks5Proxy = ""
-var HttpProxy = ""
-
-var MAGIC_BYTES = []byte("croc")
+const MAXBYTES = 1000000

 // Comm is some basic TCP communication
 type Comm struct {
@ -32,73 +24,19 @@ func NewConnection(address string, timelimit ...time.Duration) (c *Comm, err err
 	if len(timelimit) > 0 {
 		tlimit = timelimit[0]
 	}
-	var connection net.Conn
-	if Socks5Proxy != "" && !utils.IsLocalIP(address) {
-		var dialer proxy.Dialer
-		// prepend schema if no schema is given
-		if !strings.Contains(Socks5Proxy, `://`) {
-			Socks5Proxy = `socks5://` + Socks5Proxy
-		}
-		socks5ProxyURL, urlParseError := url.Parse(Socks5Proxy)
-		if urlParseError != nil {
-			err = fmt.Errorf("unable to parse socks proxy url: %s", urlParseError)
-			log.Debug(err)
-			return
-		}
-		dialer, err = proxy.FromURL(socks5ProxyURL, proxy.Direct)
-		if err != nil {
-			err = fmt.Errorf("proxy failed: %w", err)
-			log.Debug(err)
-			return
-		}
-		log.Debug("dialing with dialer.Dial")
-		connection, err = dialer.Dial("tcp", address)
-	} else if HttpProxy != "" && !utils.IsLocalIP(address) {
-		var dialer proxy.Dialer
-		// prepend schema if no schema is given
-		if !strings.Contains(HttpProxy, `://`) {
-			HttpProxy = `http://` + HttpProxy
-		}
-		HttpProxyURL, urlParseError := url.Parse(HttpProxy)
-		if urlParseError != nil {
-			err = fmt.Errorf("unable to parse http proxy url: %s", urlParseError)
-			log.Debug(err)
-			return
-		}
-		dialer, err = connectproxy.New(HttpProxyURL, proxy.Direct)
-		if err != nil {
-			err = fmt.Errorf("proxy failed: %w", err)
-			log.Debug(err)
-			return
-		}
-		log.Debug("dialing with dialer.Dial")
-		connection, err = dialer.Dial("tcp", address)
-
-	} else {
-		log.Debugf("dialing to %s with timelimit %s", address, tlimit)
-		connection, err = net.DialTimeout("tcp", address, tlimit)
-	}
+	connection, err := net.DialTimeout("tcp", address, tlimit)
 	if err != nil {
-		err = fmt.Errorf("comm.NewConnection failed: %w", err)
-		log.Debug(err)
 		return
 	}
 	c = New(connection)
-	log.Debugf("connected to '%s'", address)
 	return
 }

 // New returns a new comm
 func New(c net.Conn) *Comm {
-	if err := c.SetReadDeadline(time.Now().Add(3 * time.Hour)); err != nil {
-		log.Warnf("error setting read deadline: %v", err)
-	}
-	if err := c.SetDeadline(time.Now().Add(3 * time.Hour)); err != nil {
-		log.Warnf("error setting overall deadline: %v", err)
-	}
-	if err := c.SetWriteDeadline(time.Now().Add(3 * time.Hour)); err != nil {
-		log.Errorf("error setting write deadline: %v", err)
-	}
+	c.SetReadDeadline(time.Now().Add(3 * time.Hour))
+	c.SetDeadline(time.Now().Add(3 * time.Hour))
+	c.SetWriteDeadline(time.Now().Add(3 * time.Hour))
 	comm := new(Comm)
 	comm.connection = c
 	return comm
@ -111,79 +49,72 @@ func (c *Comm) Connection() net.Conn {

 // Close closes the connection
 func (c *Comm) Close() {
-	if err := c.connection.Close(); err != nil {
-		log.Warnf("error closing connection: %v", err)
-	}
+	c.connection.Close()
 }

-func (c *Comm) Write(b []byte) (n int, err error) {
+func (c *Comm) Write(b []byte) (int, error) {
 	header := new(bytes.Buffer)
-	err = binary.Write(header, binary.LittleEndian, uint32(len(b)))
+	err := binary.Write(header, binary.LittleEndian, uint32(len(b)))
 	if err != nil {
 		fmt.Println("binary.Write failed:", err)
 	}
 	tmpCopy := append(header.Bytes(), b...)
-	tmpCopy = append(MAGIC_BYTES, tmpCopy...)
-	n, err = c.connection.Write(tmpCopy)
-	if err != nil {
-		err = fmt.Errorf("connection.Write failed: %w", err)
-		return
-	}
+	n, err := c.connection.Write(tmpCopy)
 	if n != len(tmpCopy) {
-		err = fmt.Errorf("wanted to write %d but wrote %d", len(b), n)
-		return
+		if err != nil {
+			err = errors.Wrap(err, fmt.Sprintf("wanted to write %d but wrote %d", len(b), n))
+		} else {
+			err = fmt.Errorf("wanted to write %d but wrote %d", len(b), n)
+		}
 	}
-	return
+	// log.Printf("wanted to write %d but wrote %d", n, len(b))
+	return n, err
 }

 func (c *Comm) Read() (buf []byte, numBytes int, bs []byte, err error) {
-	// long read deadline in case waiting for file
-	if err = c.connection.SetReadDeadline(time.Now().Add(3 * time.Hour)); err != nil {
-		log.Warnf("error setting read deadline: %v", err)
-	}
-	// must clear the timeout setting
-	defer c.connection.SetDeadline(time.Time{})
-
-	// read until we get 4 bytes for the magic
-	header := make([]byte, 4)
-	_, err = io.ReadFull(c.connection, header)
-	if err != nil {
-		log.Debugf("initial read error: %v", err)
-		return
-	}
-	if !bytes.Equal(header, MAGIC_BYTES) {
-		err = fmt.Errorf("initial bytes are not magic: %x", header)
-		return
-	}
-
 	// read until we get 4 bytes for the header
-	header = make([]byte, 4)
-	_, err = io.ReadFull(c.connection, header)
-	if err != nil {
-		log.Debugf("initial read error: %v", err)
-		return
+	var header []byte
+	numBytes = 4
+	for {
+		tmp := make([]byte, numBytes-len(header))
+		n, errRead := c.connection.Read(tmp)
+		if errRead != nil {
+			err = errRead
+			return
+		}
+		header = append(header, tmp[:n]...)
+		if numBytes == len(header) {
+			break
+		}
 	}

 	var numBytesUint32 uint32
 	rbuf := bytes.NewReader(header)
 	err = binary.Read(rbuf, binary.LittleEndian, &numBytesUint32)
 	if err != nil {
-		err = fmt.Errorf("binary.Read failed: %w", err)
-		log.Debug(err.Error())
+		err = fmt.Errorf("binary.Read failed: %s", err.Error())
 		return
 	}
 	numBytes = int(numBytesUint32)
-
-	// shorten the reading deadline in case getting weird data
-	if err = c.connection.SetReadDeadline(time.Now().Add(10 * time.Second)); err != nil {
-		log.Warnf("error setting read deadline: %v", err)
-	}
-	buf = make([]byte, numBytes)
-	_, err = io.ReadFull(c.connection, buf)
-	if err != nil {
-		log.Debugf("consecutive read error: %v", err)
+	if numBytes > MAXBYTES {
+		err = fmt.Errorf("too many bytes: %d", numBytes)
+		logger.Error(err)
 		return
 	}
+	buf = make([]byte, 0)
+	for {
+		// log.Debugf("bytes: %d/%d", len(buf), numBytes)
+		tmp := make([]byte, numBytes-len(buf))
+		n, errRead := c.connection.Read(tmp)
+		if errRead != nil {
+			err = errRead
+			return
+		}
+		buf = append(buf, tmp[:n]...)
+		if numBytes == len(buf) {
+			break
+		}
+	}
 	return
 }

--- a/src/comm/comm_test.go
+++ b/src/comm/comm_test.go
@ -11,10 +11,8 @@ import (
 )

 func TestComm(t *testing.T) {
-	token := make([]byte, 3000)
-	if _, err := rand.Read(token); err != nil {
-		t.Error(err)
-	}
+	token := make([]byte, MAXBYTES)
+	rand.Read(token)

 	port := "8001"
 	go func() {
@ -31,7 +29,7 @@ func TestComm(t *testing.T) {
 				log.Error(err)
 			}
 			log.Debugf("client %s connected", connection.RemoteAddr().String())
-			go func(_ string, connection net.Conn) {
+			go func(port string, connection net.Conn) {
 				c := New(connection)
 				err = c.Send([]byte("hello, world"))
 				assert.Nil(t, err)
@ -49,7 +47,7 @@ func TestComm(t *testing.T) {
 	}()

 	time.Sleep(300 * time.Millisecond)
-	a, err := NewConnection("127.0.0.1:"+port, 10*time.Minute)
+	a, err := NewConnection("localhost:"+port, 10*time.Minute)
 	assert.Nil(t, err)
 	data, err := a.Receive()
 	assert.Equal(t, []byte("hello, world"), data)
@ -63,4 +61,5 @@ func TestComm(t *testing.T) {
 	assert.NotNil(t, a.Send(token))
 	_, err = a.Write(token)
 	assert.NotNil(t, err)
+
 }
--- a/src/compress/compress.go
+++ b/src/compress/compress.go
@ -4,8 +4,6 @@ import (
 	"bytes"
 	"compress/flate"
 	"io"
-
-	log "github.com/schollz/logger"
 )

 // CompressWithOption returns compressed data using the specified level
@ -32,22 +30,14 @@ func Decompress(src []byte) []byte {

 // compress uses flate to compress a byte slice to a corresponding level
 func compress(src []byte, dest io.Writer, level int) {
-	compressor, err := flate.NewWriter(dest, level)
-	if err != nil {
-		log.Debugf("error level data: %v", err)
-		return
-	}
-	if _, err := compressor.Write(src); err != nil {
-		log.Debugf("error writing data: %v", err)
-	}
+	compressor, _ := flate.NewWriter(dest, level)
+	compressor.Write(src)
 	compressor.Close()
 }

 // compress uses flate to decompress an io.Reader
 func decompress(src io.Reader, dest io.Writer) {
 	decompressor := flate.NewReader(src)
-	if _, err := io.Copy(dest, decompressor); err != nil {
-		log.Debugf("error copying data: %v", err)
-	}
+	io.Copy(dest, decompressor)
 	decompressor.Close()
 }
--- a/src/compress/compress_test.go
+++ b/src/compress/compress_test.go
@ -51,9 +51,7 @@ func BenchmarkCompressLevelNine(b *testing.B) {

 func BenchmarkCompressLevelMinusTwoBinary(b *testing.B) {
 	data := make([]byte, 1000000)
-	if _, err := rand.Read(data); err != nil {
-		b.Fatal(err)
-	}
+	rand.Read(data)
 	for i := 0; i < b.N; i++ {
 		CompressWithOption(data, -2)
 	}
@ -61,9 +59,7 @@ func BenchmarkCompressLevelMinusTwoBinary(b *testing.B) {

 func BenchmarkCompressLevelNineBinary(b *testing.B) {
 	data := make([]byte, 1000000)
-	if _, err := rand.Read(data); err != nil {
-		b.Fatal(err)
-	}
+	rand.Read(data)
 	for i := 0; i < b.N; i++ {
 		CompressWithOption(data, 9)
 	}
@ -87,16 +83,12 @@ func TestCompress(t *testing.T) {
 	assert.True(t, len(compressedB) < len(fable))

 	data := make([]byte, 4096)
-	if _, err := rand.Read(data); err != nil {
-		t.Fatal(err)
-	}
+	rand.Read(data)
 	compressedB = CompressWithOption(data, -2)
 	dataRateSavings = 100 * (1.0 - float64(len(compressedB))/float64(len(data)))
 	fmt.Printf("random, Level -2: %2.0f%% percent space savings\n", dataRateSavings)

-	if _, err := rand.Read(data); err != nil {
-		t.Fatal(err)
-	}
+	rand.Read(data)
 	compressedB = CompressWithOption(data, 9)
 	dataRateSavings = 100 * (1.0 - float64(len(compressedB))/float64(len(data)))

--- a/src/croc/croc.go
+++ b/src/croc/croc.go
--- a/src/croc/croc_test.go
+++ b/src/croc/croc_test.go
@ -1,28 +1,24 @@
 package croc

 import (
+	"io/ioutil"
 	"os"
-	"path"
-	"path/filepath"
-	"runtime"
-	"strings"
 	"sync"
 	"testing"
 	"time"

-	"github.com/schollz/croc/v10/src/tcp"
+	"github.com/schollz/croc/v8/src/tcp"
 	log "github.com/schollz/logger"
 	"github.com/stretchr/testify/assert"
 )

 func init() {
 	log.SetLevel("trace")
-
-	go tcp.Run("debug", "127.0.0.1", "8281", "pass123", "8282,8283,8284,8285")
-	go tcp.Run("debug", "127.0.0.1", "8282", "pass123")
-	go tcp.Run("debug", "127.0.0.1", "8283", "pass123")
-	go tcp.Run("debug", "127.0.0.1", "8284", "pass123")
-	go tcp.Run("debug", "127.0.0.1", "8285", "pass123")
+	go tcp.Run("debug", "8081", "pass123", "8082,8083,8084,8085")
+	go tcp.Run("debug", "8082", "pass123")
+	go tcp.Run("debug", "8083", "pass123")
+	go tcp.Run("debug", "8084", "pass123")
+	go tcp.Run("debug", "8085", "pass123")
 	time.Sleep(1 * time.Second)
 }

@ -32,17 +28,14 @@ func TestCrocReadme(t *testing.T) {
 	log.Debug("setting up sender")
 	sender, err := New(Options{
 		IsSender:      true,
-		SharedSecret:  "8123-testingthecroc",
+		SharedSecret:  "test",
 		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
-		RelayPorts:    []string{"8281"},
+		RelayAddress:  "localhost:8081",
+		RelayPorts:    []string{"8081"},
 		RelayPassword: "pass123",
 		Stdout:        false,
 		NoPrompt:      true,
 		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
-		GitIgnore:     false,
 	})
 	if err != nil {
 		panic(err)
@ -51,15 +44,13 @@ func TestCrocReadme(t *testing.T) {
 	log.Debug("setting up receiver")
 	receiver, err := New(Options{
 		IsSender:      false,
-		SharedSecret:  "8123-testingthecroc",
+		SharedSecret:  "test",
 		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
+		RelayAddress:  "localhost:8081",
 		RelayPassword: "pass123",
 		Stdout:        false,
 		NoPrompt:      true,
 		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
 	})
 	if err != nil {
 		panic(err)
@ -68,197 +59,20 @@ func TestCrocReadme(t *testing.T) {
 	var wg sync.WaitGroup
 	wg.Add(2)
 	go func() {
-		filesInfo, emptyFolders, totalNumberFolders, errGet := GetFilesInfo([]string{"../../README.md"}, false, false)
-		if errGet != nil {
-			t.Errorf("failed to get minimal info: %v", errGet)
-		}
-		err := sender.Send(filesInfo, emptyFolders, totalNumberFolders)
-		if err != nil {
-			t.Errorf("send failed: %v", err)
-		}
+		sender.Send(TransferOptions{
+			PathToFiles: []string{"../../README.md"},
+		})
 		wg.Done()
 	}()
 	time.Sleep(100 * time.Millisecond)
 	go func() {
-		err := receiver.Receive()
-		if err != nil {
-			t.Errorf("receive failed: %v", err)
-		}
+		receiver.Receive()
 		wg.Done()
 	}()

 	wg.Wait()
 }

-func TestCrocEmptyFolder(t *testing.T) {
-	pathName := "../../testEmpty"
-	defer os.RemoveAll(pathName)
-	defer os.RemoveAll("./testEmpty")
-	os.MkdirAll(pathName, 0o755)
-
-	log.Debug("setting up sender")
-	sender, err := New(Options{
-		IsSender:      true,
-		SharedSecret:  "8123-testingthecroc",
-		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
-		RelayPorts:    []string{"8281"},
-		RelayPassword: "pass123",
-		Stdout:        false,
-		NoPrompt:      true,
-		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
-	})
-	if err != nil {
-		panic(err)
-	}
-
-	log.Debug("setting up receiver")
-	receiver, err := New(Options{
-		IsSender:      false,
-		SharedSecret:  "8123-testingthecroc",
-		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
-		RelayPassword: "pass123",
-		Stdout:        false,
-		NoPrompt:      true,
-		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
-	})
-	if err != nil {
-		panic(err)
-	}
-
-	var wg sync.WaitGroup
-	wg.Add(2)
-	go func() {
-		filesInfo, emptyFolders, totalNumberFolders, errGet := GetFilesInfo([]string{pathName}, false, false)
-		if errGet != nil {
-			t.Errorf("failed to get minimal info: %v", errGet)
-		}
-		err := sender.Send(filesInfo, emptyFolders, totalNumberFolders)
-		if err != nil {
-			t.Errorf("send failed: %v", err)
-		}
-		wg.Done()
-	}()
-	time.Sleep(100 * time.Millisecond)
-	go func() {
-		err := receiver.Receive()
-		if err != nil {
-			t.Errorf("receive failed: %v", err)
-		}
-		wg.Done()
-	}()
-
-	wg.Wait()
-}
-
-func TestCrocSymlink(t *testing.T) {
-	pathName := "../link-in-folder"
-	defer os.RemoveAll(pathName)
-	defer os.RemoveAll("./link-in-folder")
-	os.MkdirAll(pathName, 0o755)
-	os.Symlink("../../README.md", filepath.Join(pathName, "README.link"))
-
-	log.Debug("setting up sender")
-	sender, err := New(Options{
-		IsSender:      true,
-		SharedSecret:  "8124-testingthecroc",
-		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
-		RelayPorts:    []string{"8281"},
-		RelayPassword: "pass123",
-		Stdout:        false,
-		NoPrompt:      true,
-		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
-		GitIgnore:     false,
-	})
-	if err != nil {
-		panic(err)
-	}
-
-	log.Debug("setting up receiver")
-	receiver, err := New(Options{
-		IsSender:      false,
-		SharedSecret:  "8124-testingthecroc",
-		Debug:         true,
-		RelayAddress:  "127.0.0.1:8281",
-		RelayPassword: "pass123",
-		Stdout:        false,
-		NoPrompt:      true,
-		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
-	})
-	if err != nil {
-		panic(err)
-	}
-
-	var wg sync.WaitGroup
-	wg.Add(2)
-	go func() {
-		filesInfo, emptyFolders, totalNumberFolders, errGet := GetFilesInfo([]string{pathName}, false, false)
-		if errGet != nil {
-			t.Errorf("failed to get minimal info: %v", errGet)
-		}
-		err = sender.Send(filesInfo, emptyFolders, totalNumberFolders)
-		if err != nil {
-			t.Errorf("send failed: %v", err)
-		}
-		wg.Done()
-	}()
-	time.Sleep(100 * time.Millisecond)
-	go func() {
-		err = receiver.Receive()
-		if err != nil {
-			t.Errorf("receive failed: %v", err)
-		}
-		wg.Done()
-	}()
-
-	wg.Wait()
-
-	s, err := filepath.EvalSymlinks(path.Join(pathName, "README.link"))
-	if s != "../../README.md" && s != "..\\..\\README.md" {
-		log.Debug(s)
-		t.Errorf("symlink failed to transfer in folder")
-	}
-	if err != nil {
-		t.Errorf("symlink transfer failed: %s", err.Error())
-	}
-}
-func TestCrocIgnoreGit(t *testing.T) {
-	log.SetLevel("trace")
-	defer os.Remove(".gitignore")
-	time.Sleep(300 * time.Millisecond)
-
-	time.Sleep(1 * time.Second)
-	file, err := os.Create(".gitignore")
-	if err != nil {
-		log.Errorf("error creating file")
-	}
-	_, err = file.WriteString("LICENSE")
-	if err != nil {
-		log.Errorf("error writing to file")
-	}
-	time.Sleep(1 * time.Second)
-	// due to how files are ignored in this function, all we have to do to test is make sure LICENSE doesn't get included in FilesInfo.
-	filesInfo, _, _, errGet := GetFilesInfo([]string{"../../LICENSE", ".gitignore", "croc.go"}, false, true)
-	if errGet != nil {
-		t.Errorf("failed to get minimal info: %v", errGet)
-	}
-	for _, file := range filesInfo {
-		if strings.Contains(file.Name, "LICENSE") {
-			t.Errorf("test failed, should ignore LICENSE")
-		}
-	}
-}
-
 func TestCrocLocal(t *testing.T) {
 	log.SetLevel("trace")
 	defer os.Remove("LICENSE")
@ -268,17 +82,14 @@ func TestCrocLocal(t *testing.T) {
 	log.Debug("setting up sender")
 	sender, err := New(Options{
 		IsSender:      true,
-		SharedSecret:  "8123-testingthecroc",
+		SharedSecret:  "test",
 		Debug:         true,
-		RelayAddress:  "127.0.0.1:8181",
+		RelayAddress:  "localhost:8181",
 		RelayPorts:    []string{"8181", "8182"},
 		RelayPassword: "pass123",
 		Stdout:        true,
 		NoPrompt:      true,
 		DisableLocal:  false,
-		Curve:         "siec",
-		Overwrite:     true,
-		GitIgnore:     false,
 	})
 	if err != nil {
 		panic(err)
@ -288,15 +99,13 @@ func TestCrocLocal(t *testing.T) {
 	log.Debug("setting up receiver")
 	receiver, err := New(Options{
 		IsSender:      false,
-		SharedSecret:  "8123-testingthecroc",
+		SharedSecret:  "test",
 		Debug:         true,
-		RelayAddress:  "127.0.0.1:8181",
+		RelayAddress:  "localhost:8181",
 		RelayPassword: "pass123",
 		Stdout:        true,
 		NoPrompt:      true,
 		DisableLocal:  false,
-		Curve:         "siec",
-		Overwrite:     true,
 	})
 	if err != nil {
 		panic(err)
@ -306,22 +115,15 @@ func TestCrocLocal(t *testing.T) {
 	os.Create("touched")
 	wg.Add(2)
 	go func() {
-		filesInfo, emptyFolders, totalNumberFolders, errGet := GetFilesInfo([]string{"../../LICENSE", "touched"}, false, false)
-		if errGet != nil {
-			t.Errorf("failed to get minimal info: %v", errGet)
-		}
-		err := sender.Send(filesInfo, emptyFolders, totalNumberFolders)
-		if err != nil {
-			t.Errorf("send failed: %v", err)
-		}
+		sender.Send(TransferOptions{
+			PathToFiles:      []string{"../../LICENSE", "touched"},
+			KeepPathInRemote: false,
+		})
 		wg.Done()
 	}()
 	time.Sleep(100 * time.Millisecond)
 	go func() {
-		err := receiver.Receive()
-		if err != nil {
-			t.Errorf("send failed: %v", err)
-		}
+		receiver.Receive()
 		wg.Done()
 	}()

@ -330,17 +132,17 @@ func TestCrocLocal(t *testing.T) {

 func TestCrocError(t *testing.T) {
 	content := []byte("temporary file's content")
-	tmpfile, err := os.CreateTemp("", "example")
+	tmpfile, err := ioutil.TempFile("", "example")
 	if err != nil {
 		panic(err)
 	}

 	defer os.Remove(tmpfile.Name()) // clean up

-	if _, err = tmpfile.Write(content); err != nil {
+	if _, err := tmpfile.Write(content); err != nil {
 		panic(err)
 	}
-	if err = tmpfile.Close(); err != nil {
+	if err := tmpfile.Close(); err != nil {
 		panic(err)
 	}

@ -348,7 +150,7 @@ func TestCrocError(t *testing.T) {
 	log.SetLevel("warn")
 	sender, _ := New(Options{
 		IsSender:      true,
-		SharedSecret:  "8123-testingthecroc2",
+		SharedSecret:  "test33",
 		Debug:         true,
 		RelayAddress:  "doesntexistok.com:8381",
 		RelayPorts:    []string{"8381", "8382"},
@ -356,45 +158,12 @@ func TestCrocError(t *testing.T) {
 		Stdout:        true,
 		NoPrompt:      true,
 		DisableLocal:  true,
-		Curve:         "siec",
-		Overwrite:     true,
 	})
-	filesInfo, emptyFolders, totalNumberFolders, errGet := GetFilesInfo([]string{tmpfile.Name()}, false, false)
-	if errGet != nil {
-		t.Errorf("failed to get minimal info: %v", errGet)
-	}
-	err = sender.Send(filesInfo, emptyFolders, totalNumberFolders)
+	err = sender.Send(TransferOptions{
+		PathToFiles:      []string{tmpfile.Name()},
+		KeepPathInRemote: true,
+	})
 	log.Debug(err)
 	assert.NotNil(t, err)
-}

-func TestCleanUp(t *testing.T) {
-	// windows allows files to be deleted only if they
-	// are not open by another program so the remove actions
-	// from the above tests will not always do a good clean up
-	// This "test" will make sure
-	operatingSystem := runtime.GOOS
-	log.Debugf("The operating system is %s", operatingSystem)
-	if operatingSystem == "windows" {
-		time.Sleep(1 * time.Second)
-		log.Debug("Full cleanup")
-		var err error
-
-		for _, file := range []string{"README.md", "./README.md"} {
-			err = os.Remove(file)
-			if err == nil {
-				log.Debugf("Successfully purged %s", file)
-			} else {
-				log.Debugf("%s was already purged.", file)
-			}
-		}
-		for _, folder := range []string{"./testEmpty", "./link-in-folder"} {
-			err = os.RemoveAll(folder)
-			if err == nil {
-				log.Debugf("Successfully purged %s", folder)
-			} else {
-				log.Debugf("%s was already purged.", folder)
-			}
-		}
-	}
 }
--- a/src/crypt/crypt.go
+++ b/src/crypt/crypt.go
@ -6,10 +6,7 @@ import (
 	"crypto/rand"
 	"crypto/sha256"
 	"fmt"
-	"log"

-	"golang.org/x/crypto/argon2"
-	"golang.org/x/crypto/chacha20poly1305"
 	"golang.org/x/crypto/pbkdf2"
 )

@ -23,13 +20,11 @@ func New(passphrase []byte, usersalt []byte) (key []byte, salt []byte, err error
 		salt = make([]byte, 8)
 		// http://www.ietf.org/rfc/rfc2898.txt
 		// Salt.
-		if _, err := rand.Read(salt); err != nil {
-			log.Fatalf("can't get random salt: %v", err)
-		}
+		rand.Read(salt)
 	} else {
 		salt = usersalt
 	}
-	key = pbkdf2.Key(passphrase, salt, 100, 32, sha256.New)
+	key = pbkdf2.Key([]byte(passphrase), salt, 100, 32, sha256.New)
 	return
 }

@ -39,9 +34,7 @@ func Encrypt(plaintext []byte, key []byte) (encrypted []byte, err error) {
 	// http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-38d.pdf
 	// Section 8.2
 	ivBytes := make([]byte, 12)
-	if _, err = rand.Read(ivBytes); err != nil {
-		log.Fatalf("can't initialize crypto: %v", err)
-	}
+	rand.Read(ivBytes)
 	b, err := aes.NewCipher(key)
 	if err != nil {
 		return
@ -72,54 +65,3 @@ func Decrypt(encrypted []byte, key []byte) (plaintext []byte, err error) {
 	plaintext, err = aesgcm.Open(nil, encrypted[:12], encrypted[12:], nil)
 	return
 }
-
-// NewArgon2 generates a new key based on a passphrase and salt
-// using argon2
-// https://pkg.go.dev/golang.org/x/crypto/argon2
-func NewArgon2(passphrase []byte, usersalt []byte) (aead cipher.AEAD, salt []byte, err error) {
-	if len(passphrase) < 1 {
-		err = fmt.Errorf("need more than that for passphrase")
-		return
-	}
-	if usersalt == nil {
-		salt = make([]byte, 8)
-		// http://www.ietf.org/rfc/rfc2898.txt
-		// Salt.
-		if _, err = rand.Read(salt); err != nil {
-			log.Fatalf("can't get random salt: %v", err)
-		}
-	} else {
-		salt = usersalt
-	}
-	aead, err = chacha20poly1305.NewX(argon2.IDKey(passphrase, salt, 1, 64*1024, 4, 32))
-	return
-}
-
-// EncryptChaCha will encrypt ChaCha20-Poly1305 using the pre-generated key
-// https://pkg.go.dev/golang.org/x/crypto/chacha20poly1305
-func EncryptChaCha(plaintext []byte, aead cipher.AEAD) (encrypted []byte, err error) {
-	nonce := make([]byte, aead.NonceSize(), aead.NonceSize()+len(plaintext)+aead.Overhead())
-	if _, err := rand.Read(nonce); err != nil {
-		panic(err)
-	}
-
-	// Encrypt the message and append the ciphertext to the nonce.
-	encrypted = aead.Seal(nonce, nonce, plaintext, nil)
-	return
-}
-
-// DecryptChaCha will encrypt ChaCha20-Poly1305 using the pre-generated key
-// https://pkg.go.dev/golang.org/x/crypto/chacha20poly1305
-func DecryptChaCha(encryptedMsg []byte, aead cipher.AEAD) (encrypted []byte, err error) {
-	if len(encryptedMsg) < aead.NonceSize() {
-		err = fmt.Errorf("ciphertext too short")
-		return
-	}
-
-	// Split nonce and ciphertext.
-	nonce, ciphertext := encryptedMsg[:aead.NonceSize()], encryptedMsg[aead.NonceSize():]
-
-	// Decrypt the message and check it wasn't tampered with.
-	encrypted, err = aead.Open(nil, nonce, ciphertext, nil)
-	return
-}
--- a/src/crypt/crypt_test.go
+++ b/src/crypt/crypt_test.go
@ -1,7 +1,6 @@
 package crypt

 import (
-	"fmt"
 	"testing"

 	"github.com/stretchr/testify/assert"
@ -24,37 +23,6 @@ func BenchmarkDecrypt(b *testing.B) {
 	}
 }

-func BenchmarkNewPbkdf2(b *testing.B) {
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		New([]byte("password"), nil)
-	}
-}
-
-func BenchmarkNewArgon2(b *testing.B) {
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		NewArgon2([]byte("password"), nil)
-	}
-}
-
-func BenchmarkEncryptChaCha(b *testing.B) {
-	bob, _, _ := NewArgon2([]byte("password"), nil)
-	for i := 0; i < b.N; i++ {
-		EncryptChaCha([]byte("hello, world"), bob)
-	}
-}
-
-func BenchmarkDecryptChaCha(b *testing.B) {
-	key, _, _ := NewArgon2([]byte("password"), nil)
-	msg := []byte("hello, world")
-	enc, _ := EncryptChaCha(msg, key)
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		DecryptChaCha(enc, key)
-	}
-}
-
 func TestEncryption(t *testing.T) {
 	key, salt, err := New([]byte("password"), nil)
 	assert.Nil(t, err)
@ -66,54 +34,22 @@ func TestEncryption(t *testing.T) {
 	assert.Equal(t, msg, dec)

 	// check reusing the salt
-	key2, _, _ := New([]byte("password"), salt)
+	key2, _, err := New([]byte("password"), salt)
 	dec, err = Decrypt(enc, key2)
 	assert.Nil(t, err)
 	assert.Equal(t, msg, dec)

 	// check reusing the salt
-	key2, _, _ = New([]byte("wrong password"), salt)
+	key2, _, err = New([]byte("wrong password"), salt)
 	dec, err = Decrypt(enc, key2)
 	assert.NotNil(t, err)
 	assert.NotEqual(t, msg, dec)

 	// error with no password
-	_, err = Decrypt([]byte(""), key)
+	dec, err = Decrypt([]byte(""), key)
 	assert.NotNil(t, err)

 	// error with small password
 	_, _, err = New([]byte(""), nil)
 	assert.NotNil(t, err)
 }
-
-func TestEncryptionChaCha(t *testing.T) {
-	key, salt, err := NewArgon2([]byte("password"), nil)
-	fmt.Printf("key: %x\n", key)
-	assert.Nil(t, err)
-	msg := []byte("hello, world")
-	enc, err := EncryptChaCha(msg, key)
-	assert.Nil(t, err)
-	dec, err := DecryptChaCha(enc, key)
-	assert.Nil(t, err)
-	assert.Equal(t, msg, dec)
-
-	// check reusing the salt
-	key2, _, _ := NewArgon2([]byte("password"), salt)
-	dec, err = DecryptChaCha(enc, key2)
-	assert.Nil(t, err)
-	assert.Equal(t, msg, dec)
-
-	// check reusing the salt
-	key2, _, _ = NewArgon2([]byte("wrong password"), salt)
-	dec, err = DecryptChaCha(enc, key2)
-	assert.NotNil(t, err)
-	assert.NotEqual(t, msg, dec)
-
-	// error with no password
-	_, err = DecryptChaCha([]byte(""), key)
-	assert.NotNil(t, err)
-
-	// error with small password
-	_, _, err = NewArgon2([]byte(""), nil)
-	assert.NotNil(t, err)
-}
--- a/src/diskusage/diskusage.go
+++ b/src/diskusage/diskusage.go
@ -1,49 +0,0 @@
-//go:build !windows
-// +build !windows
-
-package diskusage
-
-import (
-	"golang.org/x/sys/unix"
-)
-
-// DiskUsage contains usage data and provides user-friendly access methods
-type DiskUsage struct {
-	stat *unix.Statfs_t
-}
-
-// NewDiskUsage returns an object holding the disk usage of volumePath
-// or nil in case of error (invalid path, etc)
-func NewDiskUsage(volumePath string) *DiskUsage {
-	stat := unix.Statfs_t{}
-	err := unix.Statfs(volumePath, &stat)
-	if err != nil {
-		return nil
-	}
-	return &DiskUsage{&stat}
-}
-
-// Free returns total free bytes on file system
-func (du *DiskUsage) Free() uint64 {
-	return uint64(du.stat.Bfree) * uint64(du.stat.Bsize)
-}
-
-// Available return total available bytes on file system to an unprivileged user
-func (du *DiskUsage) Available() uint64 {
-	return uint64(du.stat.Bavail) * uint64(du.stat.Bsize)
-}
-
-// Size returns total size of the file system
-func (du *DiskUsage) Size() uint64 {
-	return uint64(du.stat.Blocks) * uint64(du.stat.Bsize)
-}
-
-// Used returns total bytes used in file system
-func (du *DiskUsage) Used() uint64 {
-	return du.Size() - du.Free()
-}
-
-// Usage returns percentage of use on the file system
-func (du *DiskUsage) Usage() float32 {
-	return float32(du.Used()) / float32(du.Size())
-}
--- a/src/diskusage/diskusage_test.go
+++ b/src/diskusage/diskusage_test.go
@ -1,17 +0,0 @@
-package diskusage
-
-import (
-	"fmt"
-	"testing"
-)
-
-var KB = uint64(1024)
-
-func TestNewDiskUsage(t *testing.T) {
-	usage := NewDiskUsage(".")
-	fmt.Println("Free:", usage.Free()/(KB*KB))
-	fmt.Println("Available:", usage.Available()/(KB*KB))
-	fmt.Println("Size:", usage.Size()/(KB*KB))
-	fmt.Println("Used:", usage.Used()/(KB*KB))
-	fmt.Println("Usage:", usage.Usage()*100, "%")
-}
--- a/src/diskusage/diskusage_windows.go
+++ b/src/diskusage/diskusage_windows.go
@ -1,55 +0,0 @@
-package diskusage
-
-import (
-	"unsafe"
-
-	"golang.org/x/sys/windows"
-)
-
-type DiskUsage struct {
-	freeBytes  int64
-	totalBytes int64
-	availBytes int64
-}
-
-// NewDiskUsage returns an object holding the disk usage of volumePath
-// or nil in case of error (invalid path, etc)
-func NewDiskUsage(volumePath string) *DiskUsage {
-	h := windows.MustLoadDLL("kernel32.dll")
-	c := h.MustFindProc("GetDiskFreeSpaceExW")
-
-	du := &DiskUsage{}
-
-	c.Call(
-		uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(volumePath))),
-		uintptr(unsafe.Pointer(&du.freeBytes)),
-		uintptr(unsafe.Pointer(&du.totalBytes)),
-		uintptr(unsafe.Pointer(&du.availBytes)))
-
-	return du
-}
-
-// Free returns total free bytes on file system
-func (du *DiskUsage) Free() uint64 {
-	return uint64(du.freeBytes)
-}
-
-// Available returns total available bytes on file system to an unprivileged user
-func (du *DiskUsage) Available() uint64 {
-	return uint64(du.availBytes)
-}
-
-// Size returns total size of the file system
-func (du *DiskUsage) Size() uint64 {
-	return uint64(du.totalBytes)
-}
-
-// Used returns total bytes used in file system
-func (du *DiskUsage) Used() uint64 {
-	return du.Size() - du.Free()
-}
-
-// Usage returns percentage of use on the file system
-func (du *DiskUsage) Usage() float32 {
-	return float32(du.Used()) / float32(du.Size())
-}
--- a/src/install/Makefile
+++ b/src/install/Makefile
@ -1,19 +0,0 @@
-# VERSION=8.X.Y make release
-
-release:
-	cd ../../ && go run src/install/updateversion.go
-	git commit -am "bump ${VERSION}"
-	git tag -af v${VERSION} -m "v${VERSION}"	
-	git push
-	git push --tags
-	cp zsh_autocomplete ../../
-	cp bash_autocomplete ../../
-	cd ../../ && goreleaser release
-	cd ../../ && ./src/install/prepare-sources-tarball.sh
-	cd ../../ && ./src/install/upload-src-tarball.sh
-
-test:
-	cp zsh_autocomplete ../../
-	cp bash_autocomplete ../../
-	cd ../../ && go generate
-	cd ../../ && goreleaser release --skip-publish
--- a/src/install/bash_autocomplete
+++ b/src/install/bash_autocomplete
@ -1,19 +0,0 @@
-: ${PROG:=$(basename ${BASH_SOURCE})}
-
-_cli_bash_autocomplete() {
-  if [[ "${COMP_WORDS[0]}" != "source" ]]; then
-    local cur opts base
-    COMPREPLY=()
-    cur="${COMP_WORDS[COMP_CWORD]}"
-    if [[ "$cur" == "-"* ]]; then
-      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} ${cur} --generate-bash-completion )
-    else
-      opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
-    fi
-    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
-    return 0
-  fi
-}
-
-complete -o bashdefault -o default -o nospace -F _cli_bash_autocomplete $PROG
-unset PROG
--- a/src/install/customization.gif
+++ b/src/install/customization.gif
--- a/src/install/default.txt
+++ b/src/install/default.txt
@ -23,7 +23,7 @@
 #                  Issues: https://github.com/schollz/croc/issues
 #
 #       CREATED: 08/10/2019 16:41
-#      REVISION: 0.9.2
+#      REVISION: 0.9.1
 #===============================================================================
 set -o nounset                              # Treat unset variables as an error

@ -86,7 +86,7 @@ print_help() {
      Default = /usr/local/bin ('\${PREFIX}/bin' on Termux for Android)
  
  -h
-      Prints this helpful message and exit."
+      Prints this helpfull message and exit."

  echo "${help_header}"
  echo ""
@ -156,10 +156,10 @@ make_tempdir() {

 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  determine_os
-#   DESCRIPTION:  Attempts to determine host os using uname
+#   DESCRIPTION:  Attempts to determin host os using uname
 #    PARAMETERS:  none
 #       RETURNS:  0 = OS Detected. Also prints detected os to stdout
-#                 1 = Unknown OS
+#                 1 = Unkown OS
 #                 20 = 'uname' not found in path
 #-------------------------------------------------------------------------------
 determine_os() {
@ -180,10 +180,10 @@ determine_os() {

 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  determine_arch
-#   DESCRIPTION:  Attempt to determine architecture of host
+#   DESCRIPTION:  Attempt to determin architecture of host
 #    PARAMETERS:  none
 #       RETURNS:  0 = Arch Detected. Also prints detected arch to stdout
-#                 1 = Unknown arch
+#                 1 = Unkown arch
 #                 20 = 'uname' not found in path
 #-------------------------------------------------------------------------------
 determine_arch() {
@ -238,7 +238,7 @@ download_file() {
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  checksum_check
 #   DESCRIPTION:  Attempt to verify checksum of downloaded file to ensure
-#                 integrity.  Tries multiple tools before failing.
+#                 integrity.  Tries multiple tools before faling.
 #    PARAMETERS:  $1 = path to checksum file
 #                 $2 = location of file to check
 #                 $3 = working directory
@ -300,10 +300,10 @@ checksum_check() {
 #---  FUNCTION  ----------------------------------------------------------------
 #          NAME:  extract_file
 #   DESCRIPTION:  Extracts a file into a location.  Attempts to determine which
-#                 tool to use by checking file extension.
+#                 tool to use by checking file extention.
 #    PARAMETERS:  $1 = file to extract
 #                 $2 = location to extract file into
-#                 $3 = extension
+#                 $3 = extention
 #       RETURNS:  Return code of the tool used to extract the file
 #                 20 = Failed to determine which tool to use
 #                 30 = Failed to find tool in path
@ -521,21 +521,12 @@ main() {
  local extract_file_rcode
  local install_file_rcode
  local create_prefix_rcode
-  local bash_autocomplete_file
-  local bash_autocomplete_prefix
-  local zsh_autocomplete_file
-  local zsh_autocomplete_prefix
-  local autocomplete_install_rcode

  croc_bin_name="croc"
-  croc_version="10.1.1"
+  croc_version="8.0.5"
  croc_dl_ext="tar.gz"
  croc_base_url="https://github.com/schollz/croc/releases/download"
  prefix="${1}"
-  bash_autocomplete_file="bash_autocomplete"
-  bash_autocomplete_prefix="/etc/bash_completion.d"
-  zsh_autocomplete_file="zsh_autocomplete"
-  zsh_autocomplete_prefix="/etc/zsh"

  print_banner
  print_message "== Install prefix set to ${prefix}" "info"
@ -577,9 +568,6 @@ main() {

  case "${croc_os}" in
     "Darwin" ) croc_os="macOS";;
-    *"BusyBox"* )
-        croc_os="Linux"
-        ;;
    "CYGWIN"* ) croc_os="Windows";
                croc_dl_ext="zip";
                print_message "== Cygwin is currently unsupported." "error";
@ -590,19 +578,16 @@ main() {
     "x86_64" ) croc_arch="64bit";;
      "amd64" ) croc_arch="64bit";;
    "aarch64" ) croc_arch="ARM64";;
-      "arm64" ) croc_arch="ARM64";;
     "armv7l" ) croc_arch="ARM";;
-     "armv8l" ) croc_arch="ARM";;
-     "armv9l" ) croc_arch="ARM";;
       "i686" ) croc_arch="32bit";;
            * ) croc_arch="unknown";;
  esac

-  croc_file="${croc_bin_name}_v${croc_version}_${croc_os}-${croc_arch}.${croc_dl_ext}"
-  croc_checksum_file="${croc_bin_name}_v${croc_version}_checksums.txt"
+  croc_file="${croc_bin_name}_${croc_version}_${croc_os}-${croc_arch}.${croc_dl_ext}"
+  croc_checksum_file="${croc_bin_name}_${croc_version}_checksums.txt"
  croc_url="${croc_base_url}/v${croc_version}/${croc_file}"
  croc_checksum_url="${croc_base_url}/v${croc_version}/${croc_checksum_file}"
-  echo "${croc_url}" "${tmpdir}" "${croc_file}"
+
  download_file "${croc_url}" "${tmpdir}" "${croc_file}"
  download_file_rcode="${?}"
  if [[ "${download_file_rcode}" == "0" ]]; then
@ -690,7 +675,7 @@ main() {
    print_message "== Install prefix already exists. No need to create it." "info"
  fi

-  [ ! -d "${bash_autocomplete_prefix}/croc" ] && mkdir -p "${bash_autocomplete_prefix}/croc" >/dev/null 2>&1
+
  case "${croc_os}" in
    "Linux" ) install_file_linux "${tmpdir}/${croc_bin_name}" "${prefix}/";
              install_file_rcode="${?}";;
@ -701,8 +686,7 @@ main() {
  "Windows" ) install_file_cygwin "${tmpdir}/${croc_bin_name}" "${prefix}/";
              install_file_rcode="${?}";;
  esac
-
-  if [[ "${install_file_rcode}" == "0" ]] ; then
+  if [[ "${install_file_rcode}" == "0" ]]; then
    print_message "== Installed ${croc_bin_name} to ${prefix}/" "ok"
  elif [[ "${install_file_rcode}" == "1" ]]; then
    print_message "== Failed to install ${croc_bin_name}" "error"
@ -718,28 +702,6 @@ main() {
    exit 1
  fi

-  # case "$(basename ${SHELL})" in
-  #   "bash" ) install_file_linux "${tmpdir}/${bash_autocomplete_file}" "${bash_autocomplete_prefix}/croc";
-  #            autocomplete_install_rcode="${?}";;
-  #    "zsh" ) install_file_linux "${tmpdir}/${zsh_autocomplete_file}" "${zsh_autocomplete_prefix}/zsh_autocomplete_croc";
-  #            autocomplete_install_rcode="${?}";
-  #            print_message "== You will need to add the following to your ~/.zshrc to enable autocompletion" "info";
-  #            print_message "\nPROG=croc\n_CLI_ZSH_AUTOCOMPLETE_HACK=1\nsource /etc/zsh/zsh_autocomplete_croc\n" "info";;
-  #    *)      autocomplete_install_rcode="1";;
-  # esac
-
-  # if [[ "${autocomplete_install_rcode}" == "0" ]] ; then
-  #   print_message "== Installed autocompletions for $(basename "${SHELL}")" "ok"
-  # elif [[ "${autocomplete_install_rcode}" == "1" ]]; then
-  #   print_message "== Failed to install ${bash_autocomplete_file}" "error"
-  # elif [[ "${autocomplete_install_rcode}" == "20" ]]; then
-  #   print_message "== Failed to locate 'install' command" "error"
-  # elif [[ "${autocomplete_install_rcode}" == "21" ]]; then
-  #   print_message "== Failed to locate 'sudo' command" "error"
-  # else
-  #   print_message "== Install attempt returned an unexpected value of ${autocomplete_install_rcode}" "error"
-  # fi
-
  print_message "== Installation complete" "ok"
  
  exit 0
--- a/src/install/prepare-sources-tarball.sh
+++ b/src/install/prepare-sources-tarball.sh
@ -1,5 +1,6 @@
 #!/bin/bash
 tmp=$(mktemp -d)
+VERSION=$(cat ./src/cli/cli.go | grep 'Version = "v' | sed 's/[^0-9.]*\([0-9.]*\).*/\1/')
 echo $VERSION
 git clone -b v${VERSION} --depth 1 https://github.com/schollz/croc $tmp/croc-${VERSION}
 (cd $tmp/croc-${VERSION} && go mod tidy && go mod vendor)
--- a/src/install/updateversion.go
+++ b/src/install/updateversion.go
@ -2,7 +2,7 @@ package main

 import (
 	"fmt"
-	"os"
+	"io/ioutil"
 	"os/exec"
 	"strings"
 )
@ -15,7 +15,11 @@ func main() {
 }

 func run() (err error) {
-	versionNew := "v" + os.Getenv("VERSION")
+	version, err := exec.Command("git", "describe", "--abbrev=0").Output()
+	if err != nil {
+		return
+	}
+	versionNew := strings.TrimSpace(string(version))
 	versionHash, err := exec.Command("git", "rev-parse", "--short", "HEAD").Output()
 	if err != nil {
 		return
@ -42,7 +46,7 @@ func run() (err error) {
 }

 func replaceInFile(fname, start, end, replacement string) (err error) {
-	b, err := os.ReadFile(fname)
+	b, err := ioutil.ReadFile(fname)
 	if err != nil {
 		return
 	}
@ -57,7 +61,7 @@ func replaceInFile(fname, start, end, replacement string) (err error) {
 		fmt.Sprintf("%s%s%s", start, replacement, end),
 		1,
 	)
-	err = os.WriteFile(fname, []byte(newF), 0o644)
+	err = ioutil.WriteFile(fname, []byte(newF), 0644)
 	return
 }

--- a/src/install/zsh_autocomplete
+++ b/src/install/zsh_autocomplete
@ -1,23 +0,0 @@
-#compdef $PROG
-
-_cli_zsh_autocomplete() {
-
-  local -a opts
-  local cur
-  cur=${words[-1]}
-  if [[ "$cur" == "-"* ]]; then
-    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} ${cur} --generate-bash-completion)}")
-  else
-    opts=("${(@f)$(_CLI_ZSH_AUTOCOMPLETE_HACK=1 ${words[@]:0:#words[@]-1} --generate-bash-completion)}")
-  fi
-
-  if [[ "${opts[1]}" != "" ]]; then
-    _describe 'values' opts
-  else
-    _files
-  fi
-
-  return
-}
-
-compdef _cli_zsh_autocomplete $PROG
--- a/src/message/message.go
+++ b/src/message/message.go
@ -3,32 +3,17 @@ package message
 import (
 	"encoding/json"

-	"github.com/schollz/croc/v10/src/comm"
-	"github.com/schollz/croc/v10/src/compress"
-	"github.com/schollz/croc/v10/src/crypt"
+	"github.com/schollz/croc/v8/src/comm"
+	"github.com/schollz/croc/v8/src/compress"
+	"github.com/schollz/croc/v8/src/crypt"
 	log "github.com/schollz/logger"
 )

-// Type is a message type
-type Type string
-
-const (
-	TypePAKE           Type = "pake"
-	TypeExternalIP     Type = "externalip"
-	TypeFinished       Type = "finished"
-	TypeError          Type = "error"
-	TypeCloseRecipient Type = "close-recipient"
-	TypeCloseSender    Type = "close-sender"
-	TypeRecipientReady Type = "recipientready"
-	TypeFileInfo       Type = "fileinfo"
-)
-
 // Message is the possible payload for messaging
 type Message struct {
-	Type    Type   `json:"t,omitempty"`
+	Type    string `json:"t,omitempty"`
 	Message string `json:"m,omitempty"`
 	Bytes   []byte `json:"b,omitempty"`
-	Bytes2  []byte `json:"b2,omitempty"`
 	Num     int    `json:"n,omitempty"`
 }

@ -43,7 +28,7 @@ func Send(c *comm.Comm, key []byte, m Message) (err error) {
 	if err != nil {
 		return
 	}
-	err = c.Send(mSend)
+	_, err = c.Write(mSend)
 	return
 }

@ -58,7 +43,7 @@ func Encode(key []byte, m Message) (b []byte, err error) {
 		log.Debugf("writing %s message (encrypted)", m.Type)
 		b, err = crypt.Encrypt(b, key)
 	} else {
-		log.Debugf("writing %s message (unencrypted)", m.Type)
+		log.Debugf("writing %s message", m.Type)
 	}
 	return
 }
@ -73,12 +58,5 @@ func Decode(key []byte, b []byte) (m Message, err error) {
 	}
 	b = compress.Decompress(b)
 	err = json.Unmarshal(b, &m)
-	if err == nil {
-		if key != nil {
-			log.Debugf("read %s message (encrypted)", m.Type)
-		} else {
-			log.Debugf("read %s message (unencrypted)", m.Type)
-		}
-	}
 	return
 }
--- a/src/message/message_test.go
+++ b/src/message/message_test.go
@ -7,20 +7,18 @@ import (
 	"testing"
 	"time"

-	"github.com/schollz/croc/v10/src/comm"
-	"github.com/schollz/croc/v10/src/crypt"
+	"github.com/schollz/croc/v8/src/comm"
+	"github.com/schollz/croc/v8/src/crypt"
 	log "github.com/schollz/logger"
 	"github.com/stretchr/testify/assert"
 )

-var TypeMessage Type = "message"
-
 func TestMessage(t *testing.T) {
 	log.SetLevel("debug")
-	m := Message{Type: TypeMessage, Message: "hello, world"}
+	m := Message{Type: "message", Message: "hello, world"}
 	e, salt, err := crypt.New([]byte("pass"), nil)
 	assert.Nil(t, err)
-	fmt.Println(string(salt))
+	fmt.Println(salt)
 	b, err := Encode(e, m)
 	assert.Nil(t, err)
 	fmt.Printf("%x\n", b)
@ -37,7 +35,7 @@ func TestMessage(t *testing.T) {

 func TestMessageNoPass(t *testing.T) {
 	log.SetLevel("debug")
-	m := Message{Type: TypeMessage, Message: "hello, world"}
+	m := Message{Type: "message", Message: "hello, world"}
 	b, err := Encode(nil, m)
 	assert.Nil(t, err)
 	fmt.Printf("%x\n", b)
@ -67,7 +65,7 @@ func TestSend(t *testing.T) {
 				log.Error(err)
 			}
 			log.Debugf("client %s connected", connection.RemoteAddr().String())
-			go func(_ string, connection net.Conn) {
+			go func(port string, connection net.Conn) {
 				c := comm.New(connection)
 				err = c.Send([]byte("hello, world"))
 				assert.Nil(t, err)
@ -84,10 +82,10 @@ func TestSend(t *testing.T) {
 		}
 	}()

-	time.Sleep(800 * time.Millisecond)
-	a, err := comm.NewConnection("127.0.0.1:"+port, 10*time.Minute)
+	time.Sleep(300 * time.Millisecond)
+	a, err := comm.NewConnection("localhost:"+port, 10*time.Minute)
 	assert.Nil(t, err)
-	m := Message{Type: TypeMessage, Message: "hello, world"}
+	m := Message{Type: "message", Message: "hello, world"}
 	e, salt, err := crypt.New([]byte("pass"), nil)
 	log.Debug(salt)
 	assert.Nil(t, err)
--- a/src/mnemonicode/mnemonicode.go
+++ b/src/mnemonicode/mnemonicode.go
@ -1,88 +0,0 @@
-// From GitHub version/fork maintained by Stephen Paul Weber available at:
-// https://github.com/singpolyma/mnemonicode
-//
-// Originally from:
-// http://web.archive.org/web/20101031205747/http://www.tothink.com/mnemonic/
-
-/*
- Copyright (c) 2000  Oren Tirosh <oren@hishome.net>
-
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
-
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
-*/
-
-package mnemonicode
-
-const base = 1626
-
-// WordsRequired returns the number of words required to encode input
-// data of length bytes using mnomonic encoding.
-//
-// Every four bytes of input is encoded into three words. If there
-// is an extra one or two bytes they get an extra one or two words
-// respectively. If there is an extra three bytes, they will be encoded
-// into three words with the last word being one of a small set of very
-// short words (only needed to encode the last 3 bits).
-func WordsRequired(length int) int {
-	return ((length + 1) * 3) / 4
-}
-
-// EncodeWordList encodes src into mnemomic words which are appended to dst.
-// The final wordlist is returned.
-// There will be WordsRequired(len(src)) words appeneded.
-func EncodeWordList(dst []string, src []byte) (result []string) {
-	if n := len(dst) + WordsRequired(len(src)); cap(dst) < n {
-		result = make([]string, len(dst), n)
-		copy(result, dst)
-	} else {
-		result = dst
-	}
-
-	var x uint32
-	for len(src) >= 4 {
-		x = uint32(src[0])
-		x |= uint32(src[1]) << 8
-		x |= uint32(src[2]) << 16
-		x |= uint32(src[3]) << 24
-		src = src[4:]
-
-		i0 := int(x % base)
-		i1 := int(x/base) % base
-		i2 := int(x/base/base) % base
-		result = append(result, WordList[i0], WordList[i1], WordList[i2])
-	}
-	if len(src) > 0 {
-		x = 0
-		for i := len(src) - 1; i >= 0; i-- {
-			x <<= 8
-			x |= uint32(src[i])
-		}
-		i := int(x % base)
-		result = append(result, WordList[i])
-		if len(src) >= 2 {
-			i = int(x/base) % base
-			result = append(result, WordList[i])
-		}
-		if len(src) == 3 {
-			i = base + int(x/base/base)%7
-			result = append(result, WordList[i])
-		}
-	}
-
-	return result
-}
--- a/src/mnemonicode/wordlist.go
+++ b/src/mnemonicode/wordlist.go
@ -1,318 +0,0 @@
-// From GitHub version/fork maintained by Stephen Paul Weber available at:
-// https://github.com/singpolyma/mnemonicode
-//
-// Originally from:
-// http://web.archive.org/web/20101031205747/http://www.tothink.com/mnemonic/
-
-/*
-Copyright (c) 2000  Oren Tirosh <oren@hishome.net>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-*/
-
-package mnemonicode
-
-// WordListVersion is the version of compiled in word list.
-const WordListVersion = "0.7"
-
-var wordMap = make(map[string]int, len(WordList))
-
-func init() {
-	for i, w := range WordList {
-		wordMap[w] = i
-	}
-}
-
-const longestWord = 7
-
-var WordList = []string{
-	"academy", "acrobat", "active", "actor", "adam", "admiral",
-	"adrian", "africa", "agenda", "agent", "airline", "airport",
-	"aladdin", "alarm", "alaska", "albert", "albino", "album",
-	"alcohol", "alex", "algebra", "alibi", "alice", "alien",
-	"alpha", "alpine", "amadeus", "amanda", "amazon", "amber",
-	"america", "amigo", "analog", "anatomy", "angel", "animal",
-	"antenna", "antonio", "apollo", "april", "archive", "arctic",
-	"arizona", "arnold", "aroma", "arthur", "artist", "asia",
-	"aspect", "aspirin", "athena", "athlete", "atlas", "audio",
-	"august", "austria", "axiom", "aztec", "balance", "ballad",
-	"banana", "bandit", "banjo", "barcode", "baron", "basic",
-	"battery", "belgium", "berlin", "bermuda", "bernard", "bikini",
-	"binary", "bingo", "biology", "block", "blonde", "bonus",
-	"boris", "boston", "boxer", "brandy", "bravo", "brazil",
-	"bronze", "brown", "bruce", "bruno", "burger", "burma",
-	"cabinet", "cactus", "cafe", "cairo", "cake", "calypso",
-	"camel", "camera", "campus", "canada", "canal", "cannon",
-	"canoe", "cantina", "canvas", "canyon", "capital", "caramel",
-	"caravan", "carbon", "cargo", "carlo", "carol", "carpet",
-	"cartel", "casino", "castle", "castro", "catalog", "caviar",
-	"cecilia", "cement", "center", "century", "ceramic", "chamber",
-	"chance", "change", "chaos", "charlie", "charm", "charter",
-	"chef", "chemist", "cherry", "chess", "chicago", "chicken",
-	"chief", "china", "cigar", "cinema", "circus", "citizen",
-	"city", "clara", "classic", "claudia", "clean", "client",
-	"climax", "clinic", "clock", "club", "cobra", "coconut",
-	"cola", "collect", "colombo", "colony", "color", "combat",
-	"comedy", "comet", "command", "compact", "company", "complex",
-	"concept", "concert", "connect", "consul", "contact", "context",
-	"contour", "control", "convert", "copy", "corner", "corona",
-	"correct", "cosmos", "couple", "courage", "cowboy", "craft",
-	"crash", "credit", "cricket", "critic", "crown", "crystal",
-	"cuba", "culture", "dallas", "dance", "daniel", "david",
-	"decade", "decimal", "deliver", "delta", "deluxe", "demand",
-	"demo", "denmark", "derby", "design", "detect", "develop",
-	"diagram", "dialog", "diamond", "diana", "diego", "diesel",
-	"diet", "digital", "dilemma", "diploma", "direct", "disco",
-	"disney", "distant", "doctor", "dollar", "dominic", "domino",
-	"donald", "dragon", "drama", "dublin", "duet", "dynamic",
-	"east", "ecology", "economy", "edgar", "egypt", "elastic",
-	"elegant", "element", "elite", "elvis", "email", "energy",
-	"engine", "english", "episode", "equator", "escort", "ethnic",
-	"europe", "everest", "evident", "exact", "example", "exit",
-	"exotic", "export", "express", "extra", "fabric", "factor",
-	"falcon", "family", "fantasy", "fashion", "fiber", "fiction",
-	"fidel", "fiesta", "figure", "film", "filter", "final",
-	"finance", "finish", "finland", "flash", "florida", "flower",
-	"fluid", "flute", "focus", "ford", "forest", "formal",
-	"format", "formula", "fortune", "forum", "fragile", "france",
-	"frank", "friend", "frozen", "future", "gabriel", "galaxy",
-	"gallery", "gamma", "garage", "garden", "garlic", "gemini",
-	"general", "genetic", "genius", "germany", "global", "gloria",
-	"golf", "gondola", "gong", "good", "gordon", "gorilla",
-	"grand", "granite", "graph", "green", "group", "guide",
-	"guitar", "guru", "hand", "happy", "harbor", "harmony",
-	"harvard", "havana", "hawaii", "helena", "hello", "henry",
-	"hilton", "history", "horizon", "hotel", "human", "humor",
-	"icon", "idea", "igloo", "igor", "image", "impact",
-	"import", "index", "india", "indigo", "input", "insect",
-	"instant", "iris", "italian", "jacket", "jacob", "jaguar",
-	"janet", "japan", "jargon", "jazz", "jeep", "john",
-	"joker", "jordan", "jumbo", "june", "jungle", "junior",
-	"jupiter", "karate", "karma", "kayak", "kermit", "kilo",
-	"king", "koala", "korea", "labor", "lady", "lagoon",
-	"laptop", "laser", "latin", "lava", "lecture", "left",
-	"legal", "lemon", "level", "lexicon", "liberal", "libra",
-	"limbo", "limit", "linda", "linear", "lion", "liquid",
-	"liter", "little", "llama", "lobby", "lobster", "local",
-	"logic", "logo", "lola", "london", "lotus", "lucas",
-	"lunar", "machine", "macro", "madam", "madonna", "madrid",
-	"maestro", "magic", "magnet", "magnum", "major", "mama",
-	"mambo", "manager", "mango", "manila", "marco", "marina",
-	"market", "mars", "martin", "marvin", "master", "matrix",
-	"maximum", "media", "medical", "mega", "melody", "melon",
-	"memo", "mental", "mentor", "menu", "mercury", "message",
-	"metal", "meteor", "meter", "method", "metro", "mexico",
-	"miami", "micro", "million", "mineral", "minimum", "minus",
-	"minute", "miracle", "mirage", "miranda", "mister", "mixer",
-	"mobile", "model", "modem", "modern", "modular", "moment",
-	"monaco", "monica", "monitor", "mono", "monster", "montana",
-	"morgan", "motel", "motif", "motor", "mozart", "multi",
-	"museum", "music", "mustang", "natural", "neon", "nepal",
-	"neptune", "nerve", "neutral", "nevada", "news", "ninja",
-	"nirvana", "normal", "nova", "novel", "nuclear", "numeric",
-	"nylon", "oasis", "object", "observe", "ocean", "octopus",
-	"olivia", "olympic", "omega", "opera", "optic", "optimal",
-	"orange", "orbit", "organic", "orient", "origin", "orlando",
-	"oscar", "oxford", "oxygen", "ozone", "pablo", "pacific",
-	"pagoda", "palace", "pamela", "panama", "panda", "panel",
-	"panic", "paradox", "pardon", "paris", "parker", "parking",
-	"parody", "partner", "passage", "passive", "pasta", "pastel",
-	"patent", "patriot", "patrol", "patron", "pegasus", "pelican",
-	"penguin", "pepper", "percent", "perfect", "perfume", "period",
-	"permit", "person", "peru", "phone", "photo", "piano",
-	"picasso", "picnic", "picture", "pigment", "pilgrim", "pilot",
-	"pirate", "pixel", "pizza", "planet", "plasma", "plaster",
-	"plastic", "plaza", "pocket", "poem", "poetic", "poker",
-	"polaris", "police", "politic", "polo", "polygon", "pony",
-	"popcorn", "popular", "postage", "postal", "precise", "prefix",
-	"premium", "present", "price", "prince", "printer", "prism",
-	"private", "product", "profile", "program", "project", "protect",
-	"proton", "public", "pulse", "puma", "pyramid", "queen",
-	"radar", "radio", "random", "rapid", "rebel", "record",
-	"recycle", "reflex", "reform", "regard", "regular", "relax",
-	"report", "reptile", "reverse", "ricardo", "ringo", "ritual",
-	"robert", "robot", "rocket", "rodeo", "romeo", "royal",
-	"russian", "safari", "salad", "salami", "salmon", "salon",
-	"salute", "samba", "sandra", "santana", "sardine", "school",
-	"screen", "script", "second", "secret", "section", "segment",
-	"select", "seminar", "senator", "senior", "sensor", "serial",
-	"service", "sheriff", "shock", "sierra", "signal", "silicon",
-	"silver", "similar", "simon", "single", "siren", "slogan",
-	"social", "soda", "solar", "solid", "solo", "sonic",
-	"soviet", "special", "speed", "spiral", "spirit", "sport",
-	"static", "station", "status", "stereo", "stone", "stop",
-	"street", "strong", "student", "studio", "style", "subject",
-	"sultan", "super", "susan", "sushi", "suzuki", "switch",
-	"symbol", "system", "tactic", "tahiti", "talent", "tango",
-	"tarzan", "taxi", "telex", "tempo", "tennis", "texas",
-	"textile", "theory", "thermos", "tiger", "titanic", "tokyo",
-	"tomato", "topic", "tornado", "toronto", "torpedo", "total",
-	"totem", "tourist", "tractor", "traffic", "transit", "trapeze",
-	"travel", "tribal", "trick", "trident", "trilogy", "tripod",
-	"tropic", "trumpet", "tulip", "tuna", "turbo", "twist",
-	"ultra", "uniform", "union", "uranium", "vacuum", "valid",
-	"vampire", "vanilla", "vatican", "velvet", "ventura", "venus",
-	"vertigo", "veteran", "victor", "video", "vienna", "viking",
-	"village", "vincent", "violet", "violin", "virtual", "virus",
-	"visa", "vision", "visitor", "visual", "vitamin", "viva",
-	"vocal", "vodka", "volcano", "voltage", "volume", "voyage",
-	"water", "weekend", "welcome", "western", "window", "winter",
-	"wizard", "wolf", "world", "xray", "yankee", "yoga",
-	"yogurt", "yoyo", "zebra", "zero", "zigzag", "zipper",
-	"zodiac", "zoom", "abraham", "action", "address", "alabama",
-	"alfred", "almond", "ammonia", "analyze", "annual", "answer",
-	"apple", "arena", "armada", "arsenal", "atlanta", "atomic",
-	"avenue", "average", "bagel", "baker", "ballet", "bambino",
-	"bamboo", "barbara", "basket", "bazaar", "benefit", "bicycle",
-	"bishop", "blitz", "bonjour", "bottle", "bridge", "british",
-	"brother", "brush", "budget", "cabaret", "cadet", "candle",
-	"capitan", "capsule", "career", "cartoon", "channel", "chapter",
-	"cheese", "circle", "cobalt", "cockpit", "college", "compass",
-	"comrade", "condor", "crimson", "cyclone", "darwin", "declare",
-	"degree", "delete", "delphi", "denver", "desert", "divide",
-	"dolby", "domain", "domingo", "double", "drink", "driver",
-	"eagle", "earth", "echo", "eclipse", "editor", "educate",
-	"edward", "effect", "electra", "emerald", "emotion", "empire",
-	"empty", "escape", "eternal", "evening", "exhibit", "expand",
-	"explore", "extreme", "ferrari", "first", "flag", "folio",
-	"forget", "forward", "freedom", "fresh", "friday", "fuji",
-	"galileo", "garcia", "genesis", "gold", "gravity", "habitat",
-	"hamlet", "harlem", "helium", "holiday", "house", "hunter",
-	"ibiza", "iceberg", "imagine", "infant", "isotope", "jackson",
-	"jamaica", "jasmine", "java", "jessica", "judo", "kitchen",
-	"lazarus", "letter", "license", "lithium", "loyal", "lucky",
-	"magenta", "mailbox", "manual", "marble", "mary", "maxwell",
-	"mayor", "milk", "monarch", "monday", "money", "morning",
-	"mother", "mystery", "native", "nectar", "nelson", "network",
-	"next", "nikita", "nobel", "nobody", "nominal", "norway",
-	"nothing", "number", "october", "office", "oliver", "opinion",
-	"option", "order", "outside", "package", "pancake", "pandora",
-	"panther", "papa", "patient", "pattern", "pedro", "pencil",
-	"people", "phantom", "philips", "pioneer", "pluto", "podium",
-	"portal", "potato", "prize", "process", "protein", "proxy",
-	"pump", "pupil", "python", "quality", "quarter", "quiet",
-	"rabbit", "radical", "radius", "rainbow", "ralph", "ramirez",
-	"ravioli", "raymond", "respect", "respond", "result", "resume",
-	"retro", "richard", "right", "risk", "river", "roger",
-	"roman", "rondo", "sabrina", "salary", "salsa", "sample",
-	"samuel", "saturn", "savage", "scarlet", "scoop", "scorpio",
-	"scratch", "scroll", "sector", "serpent", "shadow", "shampoo",
-	"sharon", "sharp", "short", "shrink", "silence", "silk",
-	"simple", "slang", "smart", "smoke", "snake", "society",
-	"sonar", "sonata", "soprano", "source", "sparta", "sphere",
-	"spider", "sponsor", "spring", "acid", "adios", "agatha",
-	"alamo", "alert", "almanac", "aloha", "andrea", "anita",
-	"arcade", "aurora", "avalon", "baby", "baggage", "balloon",
-	"bank", "basil", "begin", "biscuit", "blue", "bombay",
-	"brain", "brenda", "brigade", "cable", "carmen", "cello",
-	"celtic", "chariot", "chrome", "citrus", "civil", "cloud",
-	"common", "compare", "cool", "copper", "coral", "crater",
-	"cubic", "cupid", "cycle", "depend", "door", "dream",
-	"dynasty", "edison", "edition", "enigma", "equal", "eric",
-	"event", "evita", "exodus", "extend", "famous", "farmer",
-	"food", "fossil", "frog", "fruit", "geneva", "gentle",
-	"george", "giant", "gilbert", "gossip", "gram", "greek",
-	"grille", "hammer", "harvest", "hazard", "heaven", "herbert",
-	"heroic", "hexagon", "husband", "immune", "inca", "inch",
-	"initial", "isabel", "ivory", "jason", "jerome", "joel",
-	"joshua", "journal", "judge", "juliet", "jump", "justice",
-	"kimono", "kinetic", "leonid", "lima", "maze", "medusa",
-	"member", "memphis", "michael", "miguel", "milan", "mile",
-	"miller", "mimic", "mimosa", "mission", "monkey", "moral",
-	"moses", "mouse", "nancy", "natasha", "nebula", "nickel",
-	"nina", "noise", "orchid", "oregano", "origami", "orinoco",
-	"orion", "othello", "paper", "paprika", "prelude", "prepare",
-	"pretend", "profit", "promise", "provide", "puzzle", "remote",
-	"repair", "reply", "rival", "riviera", "robin", "rose",
-	"rover", "rudolf", "saga", "sahara", "scholar", "shelter",
-	"ship", "shoe", "sigma", "sister", "sleep", "smile",
-	"spain", "spark", "split", "spray", "square", "stadium",
-	"star", "storm", "story", "strange", "stretch", "stuart",
-	"subway", "sugar", "sulfur", "summer", "survive", "sweet",
-	"swim", "table", "taboo", "target", "teacher", "telecom",
-	"temple", "tibet", "ticket", "tina", "today", "toga",
-	"tommy", "tower", "trivial", "tunnel", "turtle", "twin",
-	"uncle", "unicorn", "unique", "update", "valery", "vega",
-	"version", "voodoo", "warning", "william", "wonder", "year",
-	"yellow", "young", "absent", "absorb", "accent", "alfonso",
-	"alias", "ambient", "andy", "anvil", "appear", "apropos",
-	"archer", "ariel", "armor", "arrow", "austin", "avatar",
-	"axis", "baboon", "bahama", "bali", "balsa", "bazooka",
-	"beach", "beast", "beatles", "beauty", "before", "benny",
-	"betty", "between", "beyond", "billy", "bison", "blast",
-	"bless", "bogart", "bonanza", "book", "border", "brave",
-	"bread", "break", "broken", "bucket", "buenos", "buffalo",
-	"bundle", "button", "buzzer", "byte", "caesar", "camilla",
-	"canary", "candid", "carrot", "cave", "chant", "child",
-	"choice", "chris", "cipher", "clarion", "clark", "clever",
-	"cliff", "clone", "conan", "conduct", "congo", "content",
-	"costume", "cotton", "cover", "crack", "current", "danube",
-	"data", "decide", "desire", "detail", "dexter", "dinner",
-	"dispute", "donor", "druid", "drum", "easy", "eddie",
-	"enjoy", "enrico", "epoxy", "erosion", "except", "exile",
-	"explain", "fame", "fast", "father", "felix", "field",
-	"fiona", "fire", "fish", "flame", "flex", "flipper",
-	"float", "flood", "floor", "forbid", "forever", "fractal",
-	"frame", "freddie", "front", "fuel", "gallop", "game",
-	"garbo", "gate", "gibson", "ginger", "giraffe", "gizmo",
-	"glass", "goblin", "gopher", "grace", "gray", "gregory",
-	"grid", "griffin", "ground", "guest", "gustav", "gyro",
-	"hair", "halt", "harris", "heart", "heavy", "herman",
-	"hippie", "hobby", "honey", "hope", "horse", "hostel",
-	"hydro", "imitate", "info", "ingrid", "inside", "invent",
-	"invest", "invite", "iron", "ivan", "james", "jester",
-	"jimmy", "join", "joseph", "juice", "julius", "july",
-	"justin", "kansas", "karl", "kevin", "kiwi", "ladder",
-	"lake", "laura", "learn", "legacy", "legend", "lesson",
-	"life", "light", "list", "locate", "lopez", "lorenzo",
-	"love", "lunch", "malta", "mammal", "margo", "marion",
-	"mask", "match", "mayday", "meaning", "mercy", "middle",
-	"mike", "mirror", "modest", "morph", "morris", "nadia",
-	"nato", "navy", "needle", "neuron", "never", "newton",
-	"nice", "night", "nissan", "nitro", "nixon", "north",
-	"oberon", "octavia", "ohio", "olga", "open", "opus",
-	"orca", "oval", "owner", "page", "paint", "palma",
-	"parade", "parent", "parole", "paul", "peace", "pearl",
-	"perform", "phoenix", "phrase", "pierre", "pinball", "place",
-	"plate", "plato", "plume", "pogo", "point", "polite",
-	"polka", "poncho", "powder", "prague", "press", "presto",
-	"pretty", "prime", "promo", "quasi", "quest", "quick",
-	"quiz", "quota", "race", "rachel", "raja", "ranger",
-	"region", "remark", "rent", "reward", "rhino", "ribbon",
-	"rider", "road", "rodent", "round", "rubber", "ruby",
-	"rufus", "sabine", "saddle", "sailor", "saint", "salt",
-	"satire", "scale", "scuba", "season", "secure", "shake",
-	"shallow", "shannon", "shave", "shelf", "sherman", "shine",
-	"shirt", "side", "sinatra", "sincere", "size", "slalom",
-	"slow", "small", "snow", "sofia", "song", "sound",
-	"south", "speech", "spell", "spend", "spoon", "stage",
-	"stamp", "stand", "state", "stella", "stick", "sting",
-	"stock", "store", "sunday", "sunset", "support", "sweden",
-	"swing", "tape", "think", "thomas", "tictac", "time",
-	"toast", "tobacco", "tonight", "torch", "torso", "touch",
-	"toyota", "trade", "tribune", "trinity", "triton", "truck",
-	"trust", "type", "under", "unit", "urban", "urgent",
-	"user", "value", "vendor", "venice", "verona", "vibrate",
-	"virgo", "visible", "vista", "vital", "voice", "vortex",
-	"waiter", "watch", "wave", "weather", "wedding", "wheel",
-	"whiskey", "wisdom", "deal", "null", "nurse", "quebec",
-	"reserve", "reunion", "roof", "singer", "verbal", "amen",
-	"ego", "fax", "jet", "job", "rio", "ski",
-	"yes",
-}
--- a/src/models/constants.go
+++ b/src/models/constants.go
@ -1,169 +1,7 @@
 package models

-import (
-	"context"
-	"fmt"
-	"net"
-	"os"
-	"path"
-	"time"
-
-	"github.com/schollz/croc/v10/src/utils"
-	log "github.com/schollz/logger"
-)
-
 // TCP_BUFFER_SIZE is the maximum packet size
 const TCP_BUFFER_SIZE = 1024 * 64

 // DEFAULT_RELAY is the default relay used (can be set using --relay)
-var (
-	DEFAULT_RELAY      = "croc.schollz.com"
-	DEFAULT_RELAY6     = "croc6.schollz.com"
-	DEFAULT_PORT       = "9009"
-	DEFAULT_PASSPHRASE = "pass123"
-	INTERNAL_DNS       = false
-)
-
-// publicDNS are servers to be queried if a local lookup fails
-var publicDNS = []string{
-	"1.0.0.1",                // Cloudflare
-	"1.1.1.1",                // Cloudflare
-	"[2606:4700:4700::1111]", // Cloudflare
-	"[2606:4700:4700::1001]", // Cloudflare
-	"8.8.4.4",                // Google
-	"8.8.8.8",                // Google
-	"[2001:4860:4860::8844]", // Google
-	"[2001:4860:4860::8888]", // Google
-	"9.9.9.9",                // Quad9
-	"149.112.112.112",        // Quad9
-	"[2620:fe::fe]",          // Quad9
-	"[2620:fe::fe:9]",        // Quad9
-	"8.26.56.26",             // Comodo
-	"8.20.247.20",            // Comodo
-	"208.67.220.220",         // Cisco OpenDNS
-	"208.67.222.222",         // Cisco OpenDNS
-	"[2620:119:35::35]",      // Cisco OpenDNS
-	"[2620:119:53::53]",      // Cisco OpenDNS
-}
-
-func getConfigFile(requireValidPath bool) (fname string, err error) {
-	configFile, err := utils.GetConfigDir(requireValidPath)
-	if err != nil {
-		return
-	}
-	fname = path.Join(configFile, "internal-dns")
-	return
-}
-
-func init() {
-	log.SetLevel("info")
-	log.SetOutput(os.Stderr)
-	doRemember := false
-	for _, flag := range os.Args {
-		if flag == "--internal-dns" {
-			INTERNAL_DNS = true
-			break
-		}
-		if flag == "--remember" {
-			doRemember = true
-		}
-	}
-	if doRemember {
-		// save in config file
-		fname, err := getConfigFile(true)
-		if err == nil {
-			f, _ := os.Create(fname)
-			f.Close()
-		}
-	}
-	if !INTERNAL_DNS {
-		fname, err := getConfigFile(false)
-		if err == nil {
-			INTERNAL_DNS = utils.Exists(fname)
-		}
-	}
-	log.Trace("Using internal DNS: ", INTERNAL_DNS)
-	var err error
-	var addr string
-	addr, err = lookup(DEFAULT_RELAY)
-	if err == nil {
-		DEFAULT_RELAY = net.JoinHostPort(addr, DEFAULT_PORT)
-	} else {
-		DEFAULT_RELAY = ""
-	}
-	log.Tracef("Default ipv4 relay: %s", addr)
-	addr, err = lookup(DEFAULT_RELAY6)
-	if err == nil {
-		DEFAULT_RELAY6 = net.JoinHostPort(addr, DEFAULT_PORT)
-	} else {
-		DEFAULT_RELAY6 = ""
-	}
-	log.Tracef("Default ipv6 relay: %s", addr)
-}
-
-// Resolve a hostname to an IP address using DNS.
-func lookup(address string) (ipaddress string, err error) {
-	if !INTERNAL_DNS {
-		log.Tracef("Using local DNS to resolve %s", address)
-		return localLookupIP(address)
-	}
-	type Result struct {
-		s   string
-		err error
-	}
-	result := make(chan Result, len(publicDNS))
-	for _, dns := range publicDNS {
-		go func(dns string) {
-			var r Result
-			r.s, r.err = remoteLookupIP(address, dns)
-			log.Tracef("Resolved %s to %s using %s", address, r.s, dns)
-			result <- r
-		}(dns)
-	}
-	for i := 0; i < len(publicDNS); i++ {
-		ipaddress = (<-result).s
-		log.Tracef("Resolved %s to %s", address, ipaddress)
-		if ipaddress != "" {
-			return
-		}
-	}
-	err = fmt.Errorf("failed to resolve %s: all DNS servers exhausted", address)
-	return
-}
-
-// localLookupIP returns a host's IP address using the local DNS configuration.
-func localLookupIP(address string) (ipaddress string, err error) {
-	// Create a context with a 500 millisecond timeout
-	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
-	defer cancel()
-
-	r := &net.Resolver{}
-
-	// Use the context with timeout in the LookupHost function
-	ip, err := r.LookupHost(ctx, address)
-	if err != nil {
-		return
-	}
-	ipaddress = ip[0]
-	return
-}
-
-// remoteLookupIP returns a host's IP address based on a remote DNS server.
-func remoteLookupIP(address, dns string) (ipaddress string, err error) {
-	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
-	defer cancel()
-
-	r := &net.Resolver{
-		PreferGo: true,
-		Dial: func(ctx context.Context, network, _ string) (net.Conn, error) {
-			d := new(net.Dialer)
-			return d.DialContext(ctx, network, dns+":53")
-		},
-	}
-	ip, err := r.LookupHost(ctx, address)
-	if err != nil {
-		return
-	}
-	ipaddress = ip[0]
-	return
-}
+const DEFAULT_RELAY = "142.93.177.120:9009"
--- a/src/tcp/assets/local_relay.png
+++ b/src/tcp/assets/local_relay.png
--- a/src/tcp/defaults.go
+++ b/src/tcp/defaults.go
@ -1,9 +0,0 @@
-package tcp
-
-import "time"
-
-const (
-	DEFAULT_LOG_LEVEL             = "debug"
-	DEFAULT_ROOM_CLEANUP_INTERVAL = 10 * time.Minute
-	DEFAULT_ROOM_TTL              = 3 * time.Hour
-)
--- a/src/tcp/options.go
+++ b/src/tcp/options.go
@ -1,53 +0,0 @@
-package tcp
-
-import (
-	"fmt"
-	"time"
-)
-
-// TODO: maybe export from logger library?
-var availableLogLevels = []string{"info", "error", "warn", "debug", "trace"}
-
-type serverOptsFunc func(s *server) error
-
-func WithBanner(banner ...string) serverOptsFunc {
-	return func(s *server) error {
-		if len(banner) > 0 {
-			s.banner = banner[0]
-		}
-		return nil
-	}
-}
-
-func WithLogLevel(level string) serverOptsFunc {
-	return func(s *server) error {
-		if !containsSlice(availableLogLevels, level) {
-			return fmt.Errorf("invalid log level specified: %s", level)
-		}
-		s.debugLevel = level
-		return nil
-	}
-}
-
-func WithRoomCleanupInterval(interval time.Duration) serverOptsFunc {
-	return func(s *server) error {
-		s.roomCleanupInterval = interval
-		return nil
-	}
-}
-
-func WithRoomTTL(ttl time.Duration) serverOptsFunc {
-	return func(s *server) error {
-		s.roomTTL = ttl
-		return nil
-	}
-}
-
-func containsSlice(s []string, e string) bool {
-	for _, ss := range s {
-		if e == ss {
-			return true
-		}
-	}
-	return false
-}
--- a/src/tcp/tcp.go
+++ b/src/tcp/tcp.go
@ -8,26 +8,20 @@ import (
 	"sync"
 	"time"

+	"github.com/pkg/errors"
+	"github.com/schollz/croc/v8/src/comm"
+	"github.com/schollz/croc/v8/src/crypt"
+	"github.com/schollz/croc/v8/src/models"
 	log "github.com/schollz/logger"
-	"github.com/schollz/pake/v3"
-
-	"github.com/schollz/croc/v10/src/comm"
-	"github.com/schollz/croc/v10/src/crypt"
-	"github.com/schollz/croc/v10/src/models"
+	"github.com/schollz/pake/v2"
 )

 type server struct {
-	host       string
 	port       string
 	debugLevel string
 	banner     string
 	password   string
 	rooms      roomMap
-
-	roomCleanupInterval time.Duration
-	roomTTL             time.Duration
-
-	stopRoomCleanup chan struct{}
 }

 type roomInfo struct {
@ -42,57 +36,45 @@ type roomMap struct {
 	sync.Mutex
 }

-const pingRoom = "pinglkasjdlfjsaldjf"
+var timeToRoomDeletion = 10 * time.Minute

-// newDefaultServer initializes a new server, with some default configuration options
-func newDefaultServer() *server {
+// Run starts a tcp listener, run async
+func Run(debugLevel, port, password string, banner ...string) (err error) {
 	s := new(server)
-	s.roomCleanupInterval = DEFAULT_ROOM_CLEANUP_INTERVAL
-	s.roomTTL = DEFAULT_ROOM_TTL
-	s.debugLevel = DEFAULT_LOG_LEVEL
-	s.stopRoomCleanup = make(chan struct{})
-	return s
-}
-
-// RunWithOptionsAsync asynchronously starts a TCP listener.
-func RunWithOptionsAsync(host, port, password string, opts ...serverOptsFunc) error {
-	s := newDefaultServer()
-	s.host = host
 	s.port = port
 	s.password = password
-	for _, opt := range opts {
-		err := opt(s)
-		if err != nil {
-			return fmt.Errorf("could not apply optional configurations: %w", err)
-		}
+	s.debugLevel = debugLevel
+	if len(banner) > 0 {
+		s.banner = banner[0]
 	}
 	return s.start()
 }

-// Run starts a tcp listener, run async
-func Run(debugLevel, host, port, password string, banner ...string) (err error) {
-	return RunWithOptionsAsync(host, port, password, WithBanner(banner...), WithLogLevel(debugLevel))
-}
-
 func (s *server) start() (err error) {
 	log.SetLevel(s.debugLevel)
-
-	// Mask our password in logs
-	maskedPassword := ""
-	if len(s.password) > 2 {
-		maskedPassword = fmt.Sprintf("%c***%c", s.password[0], s.password[len(s.password)-1])
-	} else {
-		maskedPassword = s.password
-	}
-
-	log.Debugf("starting with password '%s'", maskedPassword)
-
+	log.Debugf("starting with password '%s'", s.password)
 	s.rooms.Lock()
 	s.rooms.rooms = make(map[string]roomInfo)
 	s.rooms.Unlock()

-	go s.deleteOldRooms()
-	defer s.stopRoomDeletion()
+	// delete old rooms
+	go func() {
+		for {
+			time.Sleep(timeToRoomDeletion)
+			roomsToDelete := []string{}
+			s.rooms.Lock()
+			for room := range s.rooms.rooms {
+				if time.Since(s.rooms.rooms[room].opened) > 3*time.Hour {
+					roomsToDelete = append(roomsToDelete, room)
+				}
+			}
+			s.rooms.Unlock()
+
+			for _, room := range roomsToDelete {
+				s.deleteRoom(room)
+			}
+		}
+	}()

 	err = s.run()
 	if err != nil {
@ -102,55 +84,24 @@ func (s *server) start() (err error) {
 }

 func (s *server) run() (err error) {
-	network := "tcp"
-	addr := net.JoinHostPort(s.host, s.port)
-	if s.host != "" {
-		ip := net.ParseIP(s.host)
-		if ip == nil {
-			var tcpIP *net.IPAddr
-			tcpIP, err = net.ResolveIPAddr("ip", s.host)
-			if err != nil {
-				return err
-			}
-			ip = tcpIP.IP
-		}
-		addr = net.JoinHostPort(ip.String(), s.port)
-		if s.host != "" {
-			if ip.To4() != nil {
-				network = "tcp4"
-			} else {
-				network = "tcp6"
-			}
-		}
-	}
-	addr = strings.Replace(addr, "127.0.0.1", "0.0.0.0", 1)
-	log.Infof("starting TCP server on " + addr)
-	server, err := net.Listen(network, addr)
+	log.Infof("starting TCP server on " + s.port)
+	server, err := net.Listen("tcp", ":"+s.port)
 	if err != nil {
-		return fmt.Errorf("error listening on %s: %w", addr, err)
+		return errors.Wrap(err, "Error listening on :"+s.port)
 	}
 	defer server.Close()
 	// spawn a new goroutine whenever a client connects
 	for {
 		connection, err := server.Accept()
 		if err != nil {
-			return fmt.Errorf("problem accepting connection: %w", err)
+			return errors.Wrap(err, "problem accepting connection")
 		}
 		log.Debugf("client %s connected", connection.RemoteAddr().String())
 		go func(port string, connection net.Conn) {
 			c := comm.New(connection)
-			room, errCommunication := s.clientCommunication(port, c)
-			log.Debugf("room: %+v", room)
-			log.Debugf("err: %+v", errCommunication)
+			room, errCommunication := s.clientCommuncation(port, c)
 			if errCommunication != nil {
-				log.Debugf("relay-%s: %s", connection.RemoteAddr().String(), errCommunication.Error())
-				connection.Close()
-				return
-			}
-			if room == pingRoom {
-				log.Debugf("got ping")
-				connection.Close()
-				return
+				log.Warnf("relay-%s: %s", connection.RemoteAddr().String(), errCommunication.Error())
 			}
 			for {
 				// check connection
@ -187,44 +138,11 @@ func (s *server) run() (err error) {
 	}
 }

-// deleteOldRooms checks for rooms at a regular interval and removes those that
-// have exceeded their allocated TTL.
-func (s *server) deleteOldRooms() {
-	ticker := time.NewTicker(s.roomCleanupInterval)
-	for {
-		select {
-		case <-ticker.C:
-			var roomsToDelete []string
-			s.rooms.Lock()
-			for room := range s.rooms.rooms {
-				if time.Since(s.rooms.rooms[room].opened) > s.roomTTL {
-					roomsToDelete = append(roomsToDelete, room)
-				}
-			}
-			s.rooms.Unlock()
-
-			for _, room := range roomsToDelete {
-				s.deleteRoom(room)
-				log.Debugf("room cleaned up: %s", room)
-			}
-		case <-s.stopRoomCleanup:
-			ticker.Stop()
-			log.Debug("room cleanup stopped")
-			return
-		}
-	}
-}
-
-func (s *server) stopRoomDeletion() {
-	log.Debug("stop room cleanup fired")
-	s.stopRoomCleanup <- struct{}{}
-}
-
 var weakKey = []byte{1, 2, 3}

-func (s *server) clientCommunication(port string, c *comm.Comm) (room string, err error) {
+func (s *server) clientCommuncation(port string, c *comm.Comm) (room string, err error) {
 	// establish secure password with PAKE for communication with relay
-	B, err := pake.InitCurve(weakKey, 1, "siec")
+	B, err := pake.InitCurve(weakKey, 1, "siec", 1*time.Millisecond)
 	if err != nil {
 		return
 	}
@ -232,18 +150,16 @@ func (s *server) clientCommunication(port string, c *comm.Comm) (room string, er
 	if err != nil {
 		return
 	}
-	log.Debugf("Abytes: %s", Abytes)
-	if bytes.Equal(Abytes, []byte("ping")) {
-		room = pingRoom
-		log.Debug("sending back pong")
-		c.Send([]byte("pong"))
-		return
-	}
 	err = B.Update(Abytes)
 	if err != nil {
 		return
 	}
 	err = c.Send(B.Bytes())
+	Abytes, err = c.Receive()
+	if err != nil {
+		return
+	}
+	err = B.Update(Abytes)
 	if err != nil {
 		return
 	}
@ -255,9 +171,6 @@ func (s *server) clientCommunication(port string, c *comm.Comm) (room string, er

 	// receive salt
 	salt, err := c.Receive()
-	if err != nil {
-		return
-	}
 	strongKeyForEncryption, _, err := crypt.New(strongKey, salt)
 	if err != nil {
 		return
@ -274,10 +187,8 @@ func (s *server) clientCommunication(port string, c *comm.Comm) (room string, er
 	}
 	if strings.TrimSpace(string(passwordBytes)) != s.password {
 		err = fmt.Errorf("bad password")
-		enc, _ := crypt.Encrypt([]byte(err.Error()), strongKeyForEncryption)
-		if err = c.Send(enc); err != nil {
-			return "", fmt.Errorf("send error: %w", err)
-		}
+		enc, _ := crypt.Decrypt([]byte(err.Error()), strongKeyForEncryption)
+		c.Send(enc)
 		return
 	}

@ -340,6 +251,7 @@ func (s *server) clientCommunication(port string, c *comm.Comm) (room string, er
 		err = c.Send(bSend)
 		if err != nil {
 			log.Error(err)
+			s.deleteRoom(room)
 			return
 		}
 		return
@ -398,19 +310,17 @@ func (s *server) deleteRoom(room string) {
 	}
 	s.rooms.rooms[room] = roomInfo{first: nil, second: nil}
 	delete(s.rooms.rooms, room)
+
 }

 // chanFromConn creates a channel from a Conn object, and sends everything it
-//
-//	Read()s from the socket to the channel.
+//  Read()s from the socket to the channel.
 func chanFromConn(conn net.Conn) chan []byte {
 	c := make(chan []byte, 1)
-	if err := conn.SetReadDeadline(time.Now().Add(3 * time.Hour)); err != nil {
-		log.Warnf("can't set read deadline: %v", err)
-	}

 	go func() {
 		b := make([]byte, models.TCP_BUFFER_SIZE)
+
 		for {
 			n, err := conn.Read(b)
 			if n > 0 {
@ -443,44 +353,17 @@ func pipe(conn1 net.Conn, conn2 net.Conn) {
 			if b1 == nil {
 				return
 			}
-			if _, err := conn2.Write(b1); err != nil {
-				log.Errorf("write error on channel 1: %v", err)
-			}
+			conn2.Write(b1)

 		case b2 := <-chan2:
 			if b2 == nil {
 				return
 			}
-			if _, err := conn1.Write(b2); err != nil {
-				log.Errorf("write error on channel 2: %v", err)
-			}
+			conn1.Write(b2)
 		}
 	}
 }

-func PingServer(address string) (err error) {
-	log.Debugf("pinging %s", address)
-	c, err := comm.NewConnection(address, 300*time.Millisecond)
-	if err != nil {
-		log.Debug(err)
-		return
-	}
-	err = c.Send([]byte("ping"))
-	if err != nil {
-		log.Debug(err)
-		return
-	}
-	b, err := c.Receive()
-	if err != nil {
-		log.Debug(err)
-		return
-	}
-	if bytes.Equal(b, []byte("pong")) {
-		return nil
-	}
-	return fmt.Errorf("no pong")
-}
-
 // ConnectToTCPServer will initiate a new connection
 // to the specified address, room with optional time limit
 func ConnectToTCPServer(address, password, room string, timelimit ...time.Duration) (c *comm.Comm, banner string, ipaddr string, err error) {
@ -490,104 +373,87 @@ func ConnectToTCPServer(address, password, room string, timelimit ...time.Durati
 		c, err = comm.NewConnection(address)
 	}
 	if err != nil {
-		log.Debug(err)
 		return
 	}

 	// get PAKE connection with server to establish strong key to transfer info
-	A, err := pake.InitCurve(weakKey, 0, "siec")
+	A, err := pake.InitCurve(weakKey, 0, "siec", 1*time.Millisecond)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	err = c.Send(A.Bytes())
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	Bbytes, err := c.Receive()
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	err = A.Update(Bbytes)
 	if err != nil {
-		log.Debug(err)
+		return
+	}
+	err = c.Send(A.Bytes())
+	if err != nil {
 		return
 	}
 	strongKey, err := A.SessionKey()
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	log.Debugf("strong key: %x", strongKey)

 	strongKeyForEncryption, salt, err := crypt.New(strongKey, nil)
-	if err != nil {
-		log.Debug(err)
-		return
-	}
 	// send salt
 	err = c.Send(salt)
 	if err != nil {
-		log.Debug(err)
 		return
 	}

 	log.Debug("sending password")
 	bSend, err := crypt.Encrypt([]byte(password), strongKeyForEncryption)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	err = c.Send(bSend)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	log.Debug("waiting for first ok")
 	enc, err := c.Receive()
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	data, err := crypt.Decrypt(enc, strongKeyForEncryption)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	if !strings.Contains(string(data), "|||") {
 		err = fmt.Errorf("bad response: %s", string(data))
-		log.Debug(err)
 		return
 	}
 	banner = strings.Split(string(data), "|||")[0]
 	ipaddr = strings.Split(string(data), "|||")[1]
-	log.Debugf("sending room; %s", room)
+	log.Debug("sending room")
 	bSend, err = crypt.Encrypt([]byte(room), strongKeyForEncryption)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	err = c.Send(bSend)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	log.Debug("waiting for room confirmation")
 	enc, err = c.Receive()
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	data, err = crypt.Decrypt(enc, strongKeyForEncryption)
 	if err != nil {
-		log.Debug(err)
 		return
 	}
 	if !bytes.Equal(data, []byte("ok")) {
 		err = fmt.Errorf("got bad response: %s", data)
-		log.Debug(err)
 		return
 	}
 	log.Debug("all set")
--- a/src/tcp/tcp_test.go
+++ b/src/tcp/tcp_test.go
@ -2,44 +2,24 @@ package tcp

 import (
 	"bytes"
-	"fmt"
 	"testing"
 	"time"

-	log "github.com/schollz/logger"
 	"github.com/stretchr/testify/assert"
 )

-func BenchmarkConnection(b *testing.B) {
-	log.SetLevel("trace")
-	go Run("debug", "127.0.0.1", "8283", "pass123", "8284")
-	time.Sleep(100 * time.Millisecond)
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		c, _, _, _ := ConnectToTCPServer("127.0.0.1:8283", "pass123", fmt.Sprintf("testroom%d", i), 1*time.Minute)
-		c.Close()
-	}
-}
-
 func TestTCP(t *testing.T) {
-	log.SetLevel("error")
-	timeToRoomDeletion := 100 * time.Millisecond
-	go RunWithOptionsAsync("127.0.0.1", "8381", "pass123", WithBanner("8382"), WithLogLevel("debug"), WithRoomTTL(timeToRoomDeletion))
-	time.Sleep(timeToRoomDeletion)
-	err := PingServer("127.0.0.1:8381")
+	timeToRoomDeletion = 100 * time.Millisecond
+	go Run("debug", "8281", "pass123", "8282")
+	time.Sleep(100 * time.Millisecond)
+	c1, banner, _, err := ConnectToTCPServer("localhost:8281", "pass123", "testRoom", 1*time.Minute)
+	assert.Equal(t, banner, "8282")
 	assert.Nil(t, err)
-	err = PingServer("127.0.0.1:8333")
+	c2, _, _, err := ConnectToTCPServer("localhost:8281", "pass123", "testRoom")
+	assert.Nil(t, err)
+	_, _, _, err = ConnectToTCPServer("localhost:8281", "pass123", "testRoom")
 	assert.NotNil(t, err)
-
-	time.Sleep(timeToRoomDeletion)
-	c1, banner, _, err := ConnectToTCPServer("127.0.0.1:8381", "pass123", "testRoom", 1*time.Minute)
-	assert.Equal(t, banner, "8382")
-	assert.Nil(t, err)
-	c2, _, _, err := ConnectToTCPServer("127.0.0.1:8381", "pass123", "testRoom")
-	assert.Nil(t, err)
-	_, _, _, err = ConnectToTCPServer("127.0.0.1:8381", "pass123", "testRoom")
-	assert.NotNil(t, err)
-	_, _, _, err = ConnectToTCPServer("127.0.0.1:8381", "pass123", "testRoom", 1*time.Nanosecond)
+	_, _, _, err = ConnectToTCPServer("localhost:8281", "pass123", "testRoom", 1*time.Nanosecond)
 	assert.NotNil(t, err)

 	// try sending data
--- a/src/utils/utils.go
+++ b/src/utils/utils.go
@ -1,64 +1,26 @@
 package utils

 import (
-	"archive/zip"
 	"bufio"
 	"bytes"
-	"compress/flate"
 	"crypto/md5"
 	"crypto/rand"
 	"crypto/sha256"
-	"encoding/hex"
 	"fmt"
 	"io"
+	"io/ioutil"
+	"log"
 	"math"
-	"math/big"
 	"net"
 	"net/http"
 	"os"
-	"path"
-	"path/filepath"
 	"strings"
-	"time"
-	"unicode"

 	"github.com/cespare/xxhash"
 	"github.com/kalafut/imohash"
-	"github.com/minio/highwayhash"
-	"github.com/schollz/croc/v10/src/mnemonicode"
-	log "github.com/schollz/logger"
-	"github.com/schollz/progressbar/v3"
+	"github.com/schollz/mnemonicode"
 )

-const NbPinNumbers = 4
-const NbBytesWords = 4
-
-// Get or create home directory
-func GetConfigDir(requireValidPath bool) (homedir string, err error) {
-	if envHomedir, isSet := os.LookupEnv("CROC_CONFIG_DIR"); isSet {
-		homedir = envHomedir
-	} else if xdgConfigHome, isSet := os.LookupEnv("XDG_CONFIG_HOME"); isSet {
-		homedir = path.Join(xdgConfigHome, "croc")
-	} else {
-		homedir, err = os.UserHomeDir()
-		if err != nil {
-			if !requireValidPath {
-				err = nil
-				homedir = ""
-			}
-			return
-		}
-		homedir = path.Join(homedir, ".config", "croc")
-	}
-
-	if requireValidPath {
-		if _, err = os.Stat(homedir); os.IsNotExist(err) {
-			err = os.MkdirAll(homedir, 0o700)
-		}
-	}
-	return
-}
-
 // Exists reports whether the named file or directory exists.
 func Exists(name string) bool {
 	if _, err := os.Stat(name); err != nil {
@ -77,83 +39,13 @@ func GetInput(prompt string) string {
 	return strings.TrimSpace(text)
 }

-// HashFile returns the hash of a file or, in case of a symlink, the
-// SHA256 hash of its target. Takes an argument to specify the algorithm to use.
-func HashFile(fname string, algorithm string, showProgress ...bool) (hash256 []byte, err error) {
-	doShowProgress := false
-	if len(showProgress) > 0 {
-		doShowProgress = showProgress[0]
-	}
-	var fstats os.FileInfo
-	fstats, err = os.Lstat(fname)
-	if err != nil {
-		return nil, err
-	}
-	if fstats.Mode()&os.ModeSymlink != 0 {
-		var target string
-		target, err = os.Readlink(fname)
-		if err != nil {
-			return nil, err
-		}
-		return []byte(SHA256(target)), nil
-	}
-	switch algorithm {
-	case "imohash":
-		return IMOHashFile(fname)
-	case "md5":
-		return MD5HashFile(fname, doShowProgress)
-	case "xxhash":
-		return XXHashFile(fname, doShowProgress)
-	case "highway":
-		return HighwayHashFile(fname, doShowProgress)
-	}
-	err = fmt.Errorf("unspecified algorithm")
-	return
-}
-
-// HighwayHashFile returns highwayhash of a file
-func HighwayHashFile(fname string, doShowProgress bool) (hashHighway []byte, err error) {
-	f, err := os.Open(fname)
-	if err != nil {
-		return
-	}
-	defer f.Close()
-	key, err := hex.DecodeString("1553c5383fb0b86578c3310da665b4f6e0521acf22eb58a99532ffed02a6b115")
-	if err != nil {
-		return
-	}
-	h, err := highwayhash.New(key)
-	if err != nil {
-		err = fmt.Errorf("could not create highwayhash: %s", err.Error())
-		return
-	}
-	if doShowProgress {
-		stat, _ := f.Stat()
-		fnameShort := path.Base(fname)
-		if len(fnameShort) > 20 {
-			fnameShort = fnameShort[:20] + "..."
-		}
-		bar := progressbar.NewOptions64(stat.Size(),
-			progressbar.OptionSetWriter(os.Stderr),
-			progressbar.OptionShowBytes(true),
-			progressbar.OptionSetDescription(fmt.Sprintf("Hashing %s", fnameShort)),
-			progressbar.OptionClearOnFinish(),
-		)
-		if _, err = io.Copy(io.MultiWriter(h, bar), f); err != nil {
-			return
-		}
-	} else {
-		if _, err = io.Copy(h, f); err != nil {
-			return
-		}
-	}
-
-	hashHighway = h.Sum(nil)
-	return
+// HashFile returns the hash of a file
+func HashFile(fname string) (hash256 []byte, err error) {
+	return IMOHashFile(fname)
 }

 // MD5HashFile returns MD5 hash
-func MD5HashFile(fname string, doShowProgress bool) (hash256 []byte, err error) {
+func MD5HashFile(fname string) (hash256 []byte, err error) {
 	f, err := os.Open(fname)
 	if err != nil {
 		return
@ -161,50 +53,23 @@ func MD5HashFile(fname string, doShowProgress bool) (hash256 []byte, err error)
 	defer f.Close()

 	h := md5.New()
-	if doShowProgress {
-		stat, _ := f.Stat()
-		fnameShort := path.Base(fname)
-		if len(fnameShort) > 20 {
-			fnameShort = fnameShort[:20] + "..."
-		}
-		bar := progressbar.NewOptions64(stat.Size(),
-			progressbar.OptionSetWriter(os.Stderr),
-			progressbar.OptionShowBytes(true),
-			progressbar.OptionSetDescription(fmt.Sprintf("Hashing %s", fnameShort)),
-			progressbar.OptionClearOnFinish(),
-		)
-		if _, err = io.Copy(io.MultiWriter(h, bar), f); err != nil {
-			return
-		}
-	} else {
-		if _, err = io.Copy(h, f); err != nil {
-			return
-		}
+	if _, err = io.Copy(h, f); err != nil {
+		return
 	}

 	hash256 = h.Sum(nil)
 	return
 }

-var imofull = imohash.NewCustom(0, 0)
-var imopartial = imohash.NewCustom(16*16*8*1024, 128*1024)
-
 // IMOHashFile returns imohash
 func IMOHashFile(fname string) (hash []byte, err error) {
-	b, err := imopartial.SumFile(fname)
-	hash = b[:]
-	return
-}
-
-// IMOHashFileFull returns imohash of full file
-func IMOHashFileFull(fname string) (hash []byte, err error) {
-	b, err := imofull.SumFile(fname)
+	b, err := imohash.SumFile(fname)
 	hash = b[:]
 	return
 }

 // XXHashFile returns the xxhash of a file
-func XXHashFile(fname string, doShowProgress bool) (hash256 []byte, err error) {
+func XXHashFile(fname string) (hash256 []byte, err error) {
 	f, err := os.Open(fname)
 	if err != nil {
 		return
@ -212,25 +77,8 @@ func XXHashFile(fname string, doShowProgress bool) (hash256 []byte, err error) {
 	defer f.Close()

 	h := xxhash.New()
-	if doShowProgress {
-		stat, _ := f.Stat()
-		fnameShort := path.Base(fname)
-		if len(fnameShort) > 20 {
-			fnameShort = fnameShort[:20] + "..."
-		}
-		bar := progressbar.NewOptions64(stat.Size(),
-			progressbar.OptionSetWriter(os.Stderr),
-			progressbar.OptionShowBytes(true),
-			progressbar.OptionSetDescription(fmt.Sprintf("Hashing %s", fnameShort)),
-			progressbar.OptionClearOnFinish(),
-		)
-		if _, err = io.Copy(io.MultiWriter(h, bar), f); err != nil {
-			return
-		}
-	} else {
-		if _, err = io.Copy(h, f); err != nil {
-			return
-		}
+	if _, err = io.Copy(h, f); err != nil {
+		return
 	}

 	hash256 = h.Sum(nil)
@ -241,26 +89,24 @@ func XXHashFile(fname string, doShowProgress bool) (hash256 []byte, err error) {
 func SHA256(s string) string {
 	sha := sha256.New()
 	sha.Write([]byte(s))
-	return hex.EncodeToString(sha.Sum(nil))
+	return fmt.Sprintf("%x", sha.Sum(nil))
 }

 // PublicIP returns public ip address
 func PublicIP() (ip string, err error) {
-	// ask ipv4.icanhazip.com for the public ip
-	// by making http request
-	// if the request fails, return nothing
-	resp, err := http.Get("http://ipv4.icanhazip.com")
+	resp, err := http.Get("https://canhazip.com")
 	if err != nil {
 		return
 	}
 	defer resp.Body.Close()

-	// read the body of the response
-	// and return the ip address
-	buf := new(bytes.Buffer)
-	buf.ReadFrom(resp.Body)
-	ip = strings.TrimSpace(buf.String())
-
+	if resp.StatusCode == http.StatusOK {
+		bodyBytes, err := ioutil.ReadAll(resp.Body)
+		if err != nil {
+			return "", err
+		}
+		ip = strings.TrimSpace(string(bodyBytes))
+	}
 	return
 }

@ -268,8 +114,7 @@ func PublicIP() (ip string, err error) {
 func LocalIP() string {
 	conn, err := net.Dial("udp", "8.8.8.8:80")
 	if err != nil {
-		log.Error(err)
-		return ""
+		log.Fatal(err)
 	}
 	defer conn.Close()

@ -278,32 +123,18 @@ func LocalIP() string {
 	return localAddr.IP.String()
 }

-func GenerateRandomPin() string {
-	s := ""
-	max := new(big.Int)
-	max.SetInt64(9)
-	for i := 0; i < NbPinNumbers; i++ {
-		v, err := rand.Int(rand.Reader, max)
-		if err != nil {
-			panic(err)
-		}
-		s += fmt.Sprintf("%d", v)
-	}
-	return s
-}
-
-// GetRandomName returns mnemonicoded random name
+// GetRandomName returns mnemoicoded random name
 func GetRandomName() string {
-	var result []string
-	bs := make([]byte, NbBytesWords)
+	result := []string{}
+	bs := make([]byte, 4)
 	rand.Read(bs)
 	result = mnemonicode.EncodeWordList(result, bs)
-	return GenerateRandomPin() + "-" + strings.Join(result, "-")
+	return strings.Join(result, "-")
 }

 // ByteCountDecimal converts bytes to human readable byte string
 func ByteCountDecimal(b int64) string {
-	const unit = 1024
+	const unit = 1000
 	if b < unit {
 		return fmt.Sprintf("%d B", b)
 	}
@ -326,7 +157,7 @@ func MissingChunks(fname string, fsize int64, chunkSize int) (chunkRanges []int6
 	defer f.Close()

 	fstat, err := os.Stat(fname)
-	if err != nil || fstat.Size() != fsize {
+	if fstat.Size() != fsize || err != nil {
 		return
 	}

@ -364,6 +195,7 @@ func MissingChunks(fname string, fsize int64, chunkSize int) (chunkRanges []int6
 			}
 		}
 		chunkRanges = append(chunkRanges, int64(curCount+1))
+		chunks = chunkRanges
 	}
 	return
 }
@ -400,238 +232,3 @@ func GetLocalIPs() (ips []string, err error) {
 	}
 	return
 }
-
-func RandomFileName() (fname string, err error) {
-	f, err := os.CreateTemp(".", "croc-stdin-")
-	if err != nil {
-		return
-	}
-	fname = f.Name()
-	_ = f.Close()
-	return
-}
-
-func FindOpenPorts(host string, portNumStart, numPorts int) (openPorts []int) {
-	openPorts = []int{}
-	for port := portNumStart; port-portNumStart < 200; port++ {
-		timeout := 100 * time.Millisecond
-		conn, err := net.DialTimeout("tcp", net.JoinHostPort(host, fmt.Sprint(port)), timeout)
-		if conn != nil {
-			conn.Close()
-		} else if err != nil {
-			openPorts = append(openPorts, port)
-		}
-		if len(openPorts) >= numPorts {
-			return
-		}
-	}
-	return
-}
-
-// local ip determination
-// https://stackoverflow.com/questions/41240761/check-if-ip-address-is-in-private-network-space
-var privateIPBlocks []*net.IPNet
-
-func init() {
-	for _, cidr := range []string{
-		"127.0.0.0/8",    // IPv4 loopback
-		"10.0.0.0/8",     // RFC1918
-		"172.16.0.0/12",  // RFC1918
-		"192.168.0.0/16", // RFC1918
-		"169.254.0.0/16", // RFC3927 link-local
-		"::1/128",        // IPv6 loopback
-		"fe80::/10",      // IPv6 link-local
-		"fc00::/7",       // IPv6 unique local addr
-	} {
-		_, block, err := net.ParseCIDR(cidr)
-		if err != nil {
-			panic(fmt.Errorf("parse error on %q: %v", cidr, err))
-		}
-		privateIPBlocks = append(privateIPBlocks, block)
-	}
-}
-
-func IsLocalIP(ipaddress string) bool {
-	if strings.Contains(ipaddress, "127.0.0.1") {
-		return true
-	}
-	host, _, _ := net.SplitHostPort(ipaddress)
-	ip := net.ParseIP(host)
-	if ip.IsLoopback() || ip.IsLinkLocalUnicast() || ip.IsLinkLocalMulticast() {
-		return true
-	}
-	for _, block := range privateIPBlocks {
-		if block.Contains(ip) {
-			return true
-		}
-	}
-	return false
-}
-
-func ZipDirectory(destination string, source string) (err error) {
-	if _, err = os.Stat(destination); err == nil {
-		log.Errorf("%s file already exists!\n", destination)
-	}
-	fmt.Fprintf(os.Stderr, "Zipping %s to %s\n", source, destination)
-	file, err := os.Create(destination)
-	if err != nil {
-		log.Error(err)
-	}
-	defer file.Close()
-	writer := zip.NewWriter(file)
-	// no compression because croc does its compression on the fly
-	writer.RegisterCompressor(zip.Deflate, func(out io.Writer) (io.WriteCloser, error) {
-		return flate.NewWriter(out, flate.NoCompression)
-	})
-	defer writer.Close()
-	err = filepath.Walk(source, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			log.Error(err)
-		}
-		if info.Mode().IsRegular() {
-			f1, err := os.Open(path)
-			if err != nil {
-				log.Error(err)
-			}
-			defer f1.Close()
-			zipPath := strings.ReplaceAll(path, source, strings.TrimSuffix(destination, ".zip"))
-			zipPath = filepath.ToSlash(zipPath)
-			w1, err := writer.Create(zipPath)
-			if err != nil {
-				log.Error(err)
-			}
-			if _, err := io.Copy(w1, f1); err != nil {
-				log.Error(err)
-			}
-			fmt.Fprintf(os.Stderr, "\r\033[2K")
-			fmt.Fprintf(os.Stderr, "\rAdding %s", zipPath)
-		}
-		return nil
-	})
-	if err != nil {
-		log.Error(err)
-	}
-	fmt.Fprintf(os.Stderr, "\n")
-	return nil
-}
-
-func UnzipDirectory(destination string, source string) error {
-	archive, err := zip.OpenReader(source)
-	if err != nil {
-		log.Error(err)
-	}
-	defer archive.Close()
-
-	for _, f := range archive.File {
-		filePath := filepath.Join(destination, f.Name)
-		fmt.Fprintf(os.Stderr, "\r\033[2K")
-		fmt.Fprintf(os.Stderr, "\rUnzipping file %s", filePath)
-		// Issue #593 conceal path traversal vulnerability
-		// make sure the filepath does not have ".."
-		filePath = filepath.Clean(filePath)
-		if strings.Contains(filePath, "..") {
-			log.Errorf("Invalid file path %s\n", filePath)
-		}
-		if f.FileInfo().IsDir() {
-			os.MkdirAll(filePath, os.ModePerm)
-			continue
-		}
-
-		if err := os.MkdirAll(filepath.Dir(filePath), os.ModePerm); err != nil {
-			log.Error(err)
-		}
-
-		// check if file exists
-		if _, err := os.Stat(filePath); err == nil {
-			prompt := fmt.Sprintf("\nOverwrite '%s'? (y/N) ", filePath)
-			choice := strings.ToLower(GetInput(prompt))
-			if choice != "y" && choice != "yes" {
-				fmt.Fprintf(os.Stderr, "Skipping '%s'\n", filePath)
-				continue
-			}
-		}
-
-		dstFile, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
-		if err != nil {
-			log.Error(err)
-		}
-
-		fileInArchive, err := f.Open()
-		if err != nil {
-			log.Error(err)
-		}
-
-		if _, err := io.Copy(dstFile, fileInArchive); err != nil {
-			log.Error(err)
-		}
-
-		dstFile.Close()
-		fileInArchive.Close()
-	}
-	fmt.Fprintf(os.Stderr, "\n")
-	return nil
-}
-
-// ValidFileName checks if a filename is valid
-// by making sure it has no invisible characters
-func ValidFileName(fname string) (err error) {
-	// make sure it doesn't contain unicode or invisible characters
-	for _, r := range fname {
-		if !unicode.IsGraphic(r) {
-			err = fmt.Errorf("non-graphical unicode: %x U+%d in '%x'", string(r), r, fname)
-			return
-		}
-		if !unicode.IsPrint(r) {
-			err = fmt.Errorf("non-printable unicode: %x U+%d in '%x'", string(r), r, fname)
-			return
-		}
-	}
-	// make sure basename does not include ".." or path separators
-	_, basename := filepath.Split(fname)
-	if strings.Contains(basename, "..") {
-		err = fmt.Errorf("basename cannot contain '..': '%s'", basename)
-		return
-	}
-	if strings.Contains(basename, string(os.PathSeparator)) {
-		err = fmt.Errorf("basename cannot contain path separators: '%s'", basename)
-		return
-	}
-	// make sure the filename is not an absolute path
-	if filepath.IsAbs(fname) {
-		err = fmt.Errorf("filename cannot be an absolute path: '%s'", fname)
-		return
-	}
-	return
-}
-
-const crocRemovalFile = "croc-marked-files.txt"
-
-func MarkFileForRemoval(fname string) {
-	// append the fname to the list of files to remove
-	f, err := os.OpenFile(crocRemovalFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0o600)
-	if err != nil {
-		log.Debug(err)
-		return
-	}
-	defer f.Close()
-	_, err = f.WriteString(fname + "\n")
-}
-
-func RemoveMarkedFiles() (err error) {
-	// read the file and remove all the files
-	f, err := os.Open(crocRemovalFile)
-	if err != nil {
-		return
-	}
-	defer f.Close()
-	scanner := bufio.NewScanner(f)
-	for scanner.Scan() {
-		fname := scanner.Text()
-		err = os.Remove(fname)
-		if err == nil {
-			log.Tracef("Removed %s", fname)
-		}
-	}
-	os.Remove(crocRemovalFile)
-	return
-}
--- a/src/utils/utils_test.go
+++ b/src/utils/utils_test.go
@ -1,31 +1,29 @@
 package utils

 import (
-	"bytes"
 	"fmt"
+	"io/ioutil"
 	"log"
 	"math/rand"
 	"os"
-	"path"
 	"strings"
 	"testing"

 	"github.com/stretchr/testify/assert"
 )

-const TCP_BUFFER_SIZE = 1024 * 64
-
-var bigFileSize = 75000000
-
 func bigFile() {
-	os.WriteFile("bigfile.test", bytes.Repeat([]byte("z"), bigFileSize), 0o666)
+	rand.Seed(0)
+	bigBuff := make([]byte, 75000000)
+	rand.Read(bigBuff)
+	ioutil.WriteFile("bigfile.test", bigBuff, 0666)
 }

 func BenchmarkMD5(b *testing.B) {
 	bigFile()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		MD5HashFile("bigfile.test", false)
+		MD5HashFile("bigfile.test")
 	}
 }

@ -33,10 +31,9 @@ func BenchmarkXXHash(b *testing.B) {
 	bigFile()
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
-		XXHashFile("bigfile.test", false)
+		XXHashFile("bigfile.test")
 	}
 }
-
 func BenchmarkImoHash(b *testing.B) {
 	bigFile()
 	b.ResetTimer()
@ -45,37 +42,6 @@ func BenchmarkImoHash(b *testing.B) {
 	}
 }

-func BenchmarkHighwayHash(b *testing.B) {
-	bigFile()
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		HighwayHashFile("bigfile.test", false)
-	}
-}
-
-func BenchmarkImoHashFull(b *testing.B) {
-	bigFile()
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		IMOHashFileFull("bigfile.test")
-	}
-}
-
-func BenchmarkSha256(b *testing.B) {
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		SHA256("hello,world")
-	}
-}
-
-func BenchmarkMissingChunks(b *testing.B) {
-	bigFile()
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		MissingChunks("bigfile.test", int64(bigFileSize), TCP_BUFFER_SIZE/2)
-	}
-}
-
 func TestExists(t *testing.T) {
 	bigFile()
 	defer os.Remove("bigfile.test")
@ -87,20 +53,10 @@ func TestExists(t *testing.T) {
 func TestMD5HashFile(t *testing.T) {
 	bigFile()
 	defer os.Remove("bigfile.test")
-	b, err := MD5HashFile("bigfile.test", false)
+	b, err := MD5HashFile("bigfile.test")
 	assert.Nil(t, err)
-	assert.Equal(t, "8304ff018e02baad0e3555bade29a405", fmt.Sprintf("%x", b))
-	_, err = MD5HashFile("bigfile.test.nofile", false)
-	assert.NotNil(t, err)
-}
-
-func TestHighwayHashFile(t *testing.T) {
-	bigFile()
-	defer os.Remove("bigfile.test")
-	b, err := HighwayHashFile("bigfile.test", false)
-	assert.Nil(t, err)
-	assert.Equal(t, "3c32999529323ed66a67aeac5720c7bf1301dcc5dca87d8d46595e85ff990329", fmt.Sprintf("%x", b))
-	_, err = HighwayHashFile("bigfile.test.nofile", false)
+	assert.Equal(t, "9fed05acbacbc6a36555c998501c21f6", fmt.Sprintf("%x", b))
+	_, err = MD5HashFile("bigfile.test.nofile")
 	assert.NotNil(t, err)
 }

@ -109,16 +65,16 @@ func TestIMOHashFile(t *testing.T) {
 	defer os.Remove("bigfile.test")
 	b, err := IMOHashFile("bigfile.test")
 	assert.Nil(t, err)
-	assert.Equal(t, "c0d1e12301e6c635f6d4a8ea5c897437", fmt.Sprintf("%x", b))
+	assert.Equal(t, "c0d1e123a96a598ea801cc503d3db8c0", fmt.Sprintf("%x", b))
 }

 func TestXXHashFile(t *testing.T) {
 	bigFile()
 	defer os.Remove("bigfile.test")
-	b, err := XXHashFile("bigfile.test", false)
+	b, err := XXHashFile("bigfile.test")
 	assert.Nil(t, err)
-	assert.Equal(t, "4918740eb5ccb6f7", fmt.Sprintf("%x", b))
-	_, err = XXHashFile("nofile", false)
+	assert.Equal(t, "f2da6ee7e75e8324", fmt.Sprintf("%x", b))
+	_, err = XXHashFile("nofile")
 	assert.NotNil(t, err)
 }

@ -127,9 +83,9 @@ func TestSHA256(t *testing.T) {
 }

 func TestByteCountDecimal(t *testing.T) {
-	assert.Equal(t, "10.0 kB", ByteCountDecimal(10240))
+	assert.Equal(t, "10.0 kB", ByteCountDecimal(10000))
 	assert.Equal(t, "50 B", ByteCountDecimal(50))
-	assert.Equal(t, "12.4 MB", ByteCountDecimal(13002343))
+	assert.Equal(t, "12.4 MB", ByteCountDecimal(12378517))
 }

 func TestMissingChunks(t *testing.T) {
@ -138,9 +94,9 @@ func TestMissingChunks(t *testing.T) {
 	rand.Seed(1)
 	bigBuff := make([]byte, fileSize)
 	rand.Read(bigBuff)
-	os.WriteFile("missing.test", bigBuff, 0o644)
+	ioutil.WriteFile("missing.test", bigBuff, 0644)
 	empty := make([]byte, chunkSize)
-	f, err := os.OpenFile("missing.test", os.O_RDWR, 0o644)
+	f, err := os.OpenFile("missing.test", os.O_RDWR, 0644)
 	assert.Nil(t, err)
 	for block := 0; block < fileSize/chunkSize; block++ {
 		if block == 0 || block == 4 || block == 5 || block >= 7 {
@ -158,7 +114,7 @@ func TestMissingChunks(t *testing.T) {
 	os.Remove("missing.test")

 	content := []byte("temporary file's content")
-	tmpfile, err := os.CreateTemp("", "example")
+	tmpfile, err := ioutil.TempFile("", "example")
 	if err != nil {
 		log.Fatal(err)
 	}
@ -190,78 +146,38 @@ func TestMissingChunks(t *testing.T) {

 func TestHashFile(t *testing.T) {
 	content := []byte("temporary file's content")
-	tmpfile, err := os.CreateTemp("", "example")
+	tmpfile, err := ioutil.TempFile("", "example")
 	if err != nil {
 		log.Fatal(err)
 	}

 	defer os.Remove(tmpfile.Name()) // clean up

-	if _, err = tmpfile.Write(content); err != nil {
+	if _, err := tmpfile.Write(content); err != nil {
 		panic(err)
 	}
-	if err = tmpfile.Close(); err != nil {
+	if err := tmpfile.Close(); err != nil {
 		panic(err)
 	}
-	hashed, err := HashFile(tmpfile.Name(), "xxhash")
+	hashed, err := HashFile(tmpfile.Name())
 	assert.Nil(t, err)
-	assert.Equal(t, "e66c561610ad51e2", fmt.Sprintf("%x", hashed))
+	assert.Equal(t, "18c9673a4bb8325d323e7f24fda9ae1e", fmt.Sprintf("%x", hashed))
 }

 func TestPublicIP(t *testing.T) {
 	ip, err := PublicIP()
 	fmt.Println(ip)
-	assert.True(t, strings.Contains(ip, ".") || strings.Contains(ip, ":"))
+	assert.True(t, strings.Contains(ip, "."))
 	assert.Nil(t, err)
 }

 func TestLocalIP(t *testing.T) {
 	ip := LocalIP()
 	fmt.Println(ip)
-	assert.True(t, strings.Contains(ip, ".") || strings.Contains(ip, ":"))
+	assert.True(t, strings.Contains(ip, "."))
 }

 func TestGetRandomName(t *testing.T) {
 	name := GetRandomName()
-	fmt.Println(name)
 	assert.NotEmpty(t, name)
 }
-
-func intSliceSame(a, b []int) bool {
-	if len(a) != len(b) {
-		return false
-	}
-	for i, v := range a {
-		if v != b[i] {
-			return false
-		}
-	}
-	return true
-}
-
-func TestFindOpenPorts(t *testing.T) {
-	openPorts := FindOpenPorts("127.0.0.1", 9009, 4)
-	if !intSliceSame(openPorts, []int{9009, 9010, 9011, 9012}) && !intSliceSame(openPorts, []int{9014, 9015, 9016, 9017}) {
-		t.Errorf("openPorts: %v", openPorts)
-
-	}
-}
-
-func TestIsLocalIP(t *testing.T) {
-	assert.True(t, IsLocalIP("192.168.0.14:9009"))
-}
-
-func TestValidFileName(t *testing.T) {
-	// contains regular characters
-	assert.Nil(t, ValidFileName("中文.csl"))
-	// contains regular characters
-	assert.Nil(t, ValidFileName("[something].csl"))
-	// contains regular characters
-	assert.Nil(t, ValidFileName("[(something)].csl"))
-	// contains invisible character
-	err := ValidFileName("D中文.cslouglas")
-	assert.NotNil(t, err)
-	assert.Equal(t, "non-graphical unicode: e2808b U+8203 in '44e4b8ade696872e63736c6f75676c6173e2808b'", err.Error())
-	assert.NotNil(t, ValidFileName("hi..txt"))
-	assert.NotNil(t, ValidFileName(path.Join(string(os.PathSeparator), "abs", string(os.PathSeparator), "hi.txt")))
-}