feat: support --dns command (#154) #165

	name: Go test trzsz-ssh
	on: [push]
	jobs:
	go-test-on-linux:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout trzsz-ssh
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"
	- name: go test
	run: go test -v -count=1 ./tssh
	go-test-on-macos:
	runs-on: macos-latest
	steps:
	- name: Checkout trzsz-ssh
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"
	- name: go test
	run: go test -v -count=1 ./tssh
	go-test-on-windows:
	runs-on: windows-latest
	steps:
	- name: Checkout trzsz-ssh
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"
	- name: go test
	run: go test -v -count=1 ./tssh
	go-release-snapshot:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout trzsz-ssh
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"
	- name: Run GoReleaser
	uses: goreleaser/goreleaser-action@v6
	with:
	distribution: goreleaser
	version: "~> v1"
	args: release --clean --snapshot --skip=publish
	test-win7-patch:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout trzsz-ssh
	uses: actions/checkout@v4
	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: "1.21"
	- name: Revert Go1.21
	run: \|
	cd $(go env GOROOT)
	curl https://github.com/golang/go/commit/9e43850a3298a9b8b1162ba0033d4c53f8637571.diff \| patch --verbose -R -p 1
	- name: Build trzsz-ssh
	run: \|
	go test -v -count=1 ./tssh
	GOOS=windows GOARCH=386 go build -o tssh_win7_i386/ ./cmd/tssh/
	GOOS=windows GOARCH=amd64 go build -o tssh_win7_x86_64/ ./cmd/tssh/

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