Initial Commit

IPRangeLoader.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"bufio"
+	"log"
+	"net"
+	"os"
+)
+
+func loadFirstIPOfRangeFromFile() []net.IPAddr {
+	file, err := os.Open("ip.txt")
+	if err != nil {
+		log.Fatal(err)
+	}
+	firstIPs := make([]net.IPAddr, 0)
+	scanner := bufio.NewScanner(file)
+	scanner.Split(bufio.ScanLines)
+	for scanner.Scan() {
+		IPString := scanner.Text()
+		firstIP, IPRange, err := net.ParseCIDR(IPString)
+		if err != nil {
+			log.Fatal(err)
+		}
+		firstIP[15]=ipEndWith
+		for IPRange.Contains(firstIP) {
+			firstIPCopy := make([]byte, len(firstIP))
+			copy(firstIPCopy, firstIP)
+			firstIPs = append(firstIPs, net.IPAddr{IP: firstIPCopy})
+			firstIP[14]++
+			if firstIP[14] == 0 {
+				firstIP[13]++
+				if firstIP[13] == 0 {
+					firstIP[12]++
+				}
+			}
+		}
+	}
+	return firstIPs
+}