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ip/8时,只探测部分机器

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This commit is contained in:
影舞者
2022-01-07 10:51:36 +08:00
parent d1bcc60bcb
commit b80ea1316f
3 changed files with 56 additions and 1 deletions
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common/ParseIP.go
+40 -1
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@@ -4,6 +4,7 @@ import (
"bufio"
"errors"
"fmt"
"math/rand"
"net"
"os"
"regexp"
@@ -77,6 +78,9 @@ func ParseIPs(ip string) (hosts []string) {
func parseIP(ip string) []string {
reg := regexp.MustCompile(`[a-zA-Z]+`)
switch {
// 扫描/8时,只扫网关和随机IP,避免扫描过多IP
case strings.HasSuffix(ip, "/8"):
return parseIP8(ip)
//解析 /24 /16 /8 /xxx 等
case strings.Contains(ip, "/"):
return parseIP2(ip)
@@ -110,7 +114,8 @@ func parseIP2(host string) (hosts []string) {
return
}
// 解析ip段: 192.168.111.1-255,192.168.111.1-192.168.112.255
// 解析ip段: 192.168.111.1-255
// 192.168.111.1-192.168.112.255
func parseIP1(ip string) []string {
IPRange := strings.Split(ip, "-")
testIP := net.ParseIP(IPRange[0])
@@ -202,3 +207,37 @@ func RemoveDuplicate(old []string) []string {
}
return result
}
func parseIP8(ip string) []string {
realIP := ip[:len(ip)-2]
testIP := net.ParseIP(realIP)
if testIP == nil {
return nil
}
IPrange := strings.Split(ip, ".")[0]
var AllIP []string
for a := 0; a <= 255; a++ {
for b := 0; b <= 255; b++ {
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 1))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 2))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 4))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 5))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(6, 55)))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(56, 100)))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(101, 150)))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(151, 200)))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, RandInt(201, 253)))
AllIP = append(AllIP, fmt.Sprintf("%s.%d.%d.%d", IPrange, a, b, 254))
}
}
return AllIP
}
func RandInt(min, max int) int {
if min >= max || min == 0 || max == 0 {
return max
}
return rand.Intn(max-min) + min
}