Check file descriptors in goland to avoid gocrash

gistfile1.txt

package main

import (
	"fmt"
	"os"
)

func main() {
	// Check if standard output is open
	if os.Stdout == nil {
		fmt.Println("Standard output is closed.")
		// Reopen standard output (e.g., to /dev/null)
		f, err := os.OpenFile("/dev/null", os.O_WRONLY, 0644)
		if err != nil {
			panic(err)
		}
		os.Stdout = f
	}

	// Check if standard input is open
	if os.Stdin == nil {
		fmt.Println("Standard input is closed.")
		// Reopen standard input (e.g., from /dev/null)
		f, err := os.OpenFile("/dev/null", os.O_RDONLY, 0644)
		if err != nil {
			panic(err)
		}
		os.Stdin = f
	}

	// Check if standard error is open
	if os.Stderr == nil {
		fmt.Println("Standard error is closed.")
		// Reopen standard error (e.g., to /dev/null)
		f, err := os.OpenFile("/dev/null", os.O_WRONLY, 0644)
		if err != nil {
			panic(err)
		}
		os.Stderr = f
	}

	// Now you can safely use os.Stdout, os.Stdin, and os.Stderr
	fmt.Println("Hello, world!") // This will print to standard output
}