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// Various Linux/Unix'y things
// https://wiki.archlinux.org/title/Dynamic_DNS
package main
import (
"log"
"os"
"os/exec"
"net"
"bytes"
"fmt"
"strings"
"go.wit.com/shell"
)
func CheckSuperuser() bool {
return os.Getuid() == 0
}
func Escalate() {
if os.Getuid() != 0 {
cmd := exec.Command("sudo", "./control-panel-dns") // TODO: get the actual path
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
if err != nil {
debug(LogError, "exit in Escalate()")
exit(err)
}
}
}
// You need permission to do a zone transfer. Otherwise:
// dig +noall +answer +multiline lab.wit.com any
// dig +all +multiline fire.lab.wit.com # gives the zonefile header (ttl vals)
func DumpPublicDNSZone(zone string) {
entries, err := net.LookupHost(zone)
if err != nil {
panic(err)
}
for _, entry := range entries {
log.Println(entry)
}
}
func dumpIPs(host string) {
ips, err := net.LookupIP(host)
if err != nil {
debug(LogError, "dumpIPs() failed:", err)
}
for _, ip := range ips {
log.Println(host, ip)
}
}
/*
check if ddclient is installed, working, and/or configured
https://github.com/ddclient/ddclient
*/
func ddclient() {
}
/*
check if ddupdate is installed, working, and/or configured
*/
func ddupdate() {
}
func run(s string) string {
cmdArgs := strings.Fields(s)
// Define the command you want to run
// cmd := exec.Command(cmdArgs)
cmd := exec.Command(cmdArgs[0], cmdArgs[1:len(cmdArgs)]...)
// Create a buffer to capture the output
var out bytes.Buffer
// Set the output of the command to the buffer
cmd.Stdout = &out
// Run the command
err := cmd.Run()
if err != nil {
fmt.Println("Error running command:", err)
return ""
}
tmp := shell.Chomp(out.String())
// Output the results
debug(LogExec, "Command Output:", tmp)
return tmp
}
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