Netstat
To implement the Netstat functionality in Go, you can use the net package to retrieve the list of active network connections. However, Go's standard library does not provide a direct way to list all active connections. Instead, you can use the netstat command available on Unix-like systems and parse its output.
Here is an example implementation:
Step 2: Update the netstat.go File
Create a netstatmod/netstat.go file to handle the Netstat functionality.
// netstat.go
package netstat
import (
"bufio"
"os/exec"
"strings"
)
// Netstat retrieves the list of active network connections.
func Netstat() ([]string, error) {
cmd := exec.Command("netstat", "-an")
stdout, err := cmd.Output()
if err != nil {
return nil, err
}
scanner := bufio.NewScanner(strings.NewReader(string(stdout)))
var connections []string
for scanner.Scan() {
connections = append(connections, scanner.Text())
}
if err := scanner.Err(); err != nil {
return nil, err
}
return connections, nil
}
Step 3: Update the main.go File
Create a main.go file to use the Netstat functionality.
// main.go
package main
import (
"fmt"
"os"
netstat "github.com/username/netstat/netstatmod"
)
func main() {
connections, err := netstat.Netstat()
if err != nil {
fmt.Printf("Netstat failed: %v\n", err)
os.Exit(1)
}
fmt.Println("Active network connections:")
for _, conn := range connections {
fmt.Println(conn)
}
}
Step 4: Run the Program
Run the program using the go run command.
go run main.go
This will output the active network connections by executing the netstat -an command and parsing its output.
Last modified: 08 January 2025