Add new command implementation

Signed-off-by: apostasie <[email protected]>

Author: apostasie

mod/tigron/internal/com/command.go

@@ -0,0 +1,39 @@
+//go:build !windows
+
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package com
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+func addAttr(cmd *exec.Cmd) func() error {
+	// Default shutdown will leave child processes behind in certain circumstances
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		Setsid: true,
+		// FIXME: understand why we would want that
+		// Setctty: true,
+	}
+
+	return func() error {
+		_ = syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
+
+		return nil
+	}
+}