git commit -m "first commit"

nmap/scan/scan.go

@@ -0,0 +1,63 @@
+package scan
+
+import (
+	"context"
+	"fmt"
+
+	"log"
+
+	"github.com/Ullaakut/nmap/v3"
+	ipnet "github.com/korylprince/ipnetgen"
+)
+
+func Pcidr(cidr_addres string, get_ip int) {
+
+	scanner, err := nmap.NewScanner(
+		context.Background(),
+		nmap.WithTargets(cidr_addres),
+		nmap.WithPingScan(),
+	)
+	if err != nil {
+		log.Fatalf("unable to create nmap scanner: %v", err)
+	}
+
+	result, warnings, err := scanner.Run()
+	if len(*warnings) > 0 {
+		log.Printf("run finished with warnings: %s\n", *warnings) // Warnings are non-critical errors from nmap.
+	}
+	if err != nil {
+		log.Fatalf("nmap scan failed: %v", err)
+	}
+
+	var slices []string
+	for _, host := range result.Hosts {
+		slices = append(slices, host.Addresses[0].String())
+	}
+
+	var cird_ip_address []string
+	gen, err := ipnet.New(cidr_addres)
+	if err != nil {
+		panic(err)
+	}
+
+	for ip := gen.Next(); ip != nil; ip = gen.Next() {
+		cird_ip_address = append(cird_ip_address, ip.String())
+	}
+
+	// Delete the first and last IP in cird_ip_address as reserved addresses.
+	cird_ip_address = cird_ip_address[1 : len(cird_ip_address)-1]
+
+	// Clear the addresses occupied by scanning in cird_ip_address.
+	for _, ip := range slices {
+		for i, v := range cird_ip_address {
+			if ip == v {
+				cird_ip_address = append(cird_ip_address[:i], cird_ip_address[i+1:]...)
+			}
+		}
+	}
+
+	// getIP
+	for i := 0; i < get_ip; i++ {
+		fmt.Println(cird_ip_address[i])
+	}
+}