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flsm.c
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flsm.c
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#include<stdio.h>
#include<stdlib.h>
#include<string.h>
/** function prototypes area start */
void fileDataGenarate(int , int ,int , int[4]);
/** function prototypes area end */
void printIps(int blockSize , int subNetsAll , int subNetsRequest , int index , int hostCount , int octets[4]){
system("cls"); /// clear old outputs
printf("\n******************************************* Subnet details *******************************************\n\n");
fileop("\n\t******************************************* Subnet details *******************************************\n"); /// add to file
char tmp[10];
char p1[] = "\n Created subnet count-------: ";
char p2[] = "\n Host count of each subnet--: ";
itoa(subNetsAll,tmp,10);
strcat(p1 , tmp);
fileop(p1);
itoa(hostCount,tmp,10);
strcat(p2 , tmp);
fileop(p2);
switch (index){
case 0: /// class A
fileop("\n Class----------------------: Class A IP range\n"); /// add to file
printf("\n Network Address \tSubnet Mask\t First Host\t Last Host\t\tBroadcast Address\n\n");
fileop("\n Network Address \tSubnet Mask \t\tFirst Host \t\tLast Host \t\tBroadcast Address\n\n"); /// add to file
for(int i = 0; i < subNetsAll; i++){
if(i == subNetsRequest){
printf("\n **Additional subnets: \n\n");
fileop("\n Additional subnets: \n\n"); /// add to file
}
printf(" %d.%d.0.0\t\t", octets[0] , i*blockSize);
printf("255.%d.0.0\t " , 256 - blockSize);
printf("%d.%d.0.1\t ", octets[0] , i*blockSize);
printf("%d.%d.255.254 \t", octets[0] ,(i + 1)*blockSize - 1);
printf("%d.%d.255.255\n", octets[0] ,(i + 1)*blockSize - 1);
fileDataGenarate(i, blockSize, 0 , octets);
}
break;
case 1: /// class B
fileop("\n Class----------------------: Class B IP range\n"); /// add to file
printf("\n Network Address \tSubnet Mask\t\tFirst Host\t Last Host\t\tBroadcast Address\n\n");
fileop("\n Network Address \tSubnet Mask \t\tFirst Host \t\tLast Host \t\tBroadcast Address\n\n"); /// add to file
for(int i = 0; i < subNetsAll; i++){
if(i == subNetsRequest){
printf("\n **Additional subnets: \n\n");
fileop("\n Additional subnets: \n\n"); /// add to file
}
printf(" %d.%d.%d.0\t\t", octets[0] , octets[1] , i*blockSize);
printf("255.255.%d.0\t\t" , 256 - blockSize);
printf("%d.%d.%d.1\t ", octets[0] , octets[1] , i*blockSize);
printf("%d.%d.%d.254 \t", octets[0] , octets[1] , (i + 1)*blockSize - 1);
printf("%d.%d.%d.255\n", octets[0] , octets[1] , (i + 1)*blockSize - 1);
fileDataGenarate(i, blockSize, 1 , octets);
}
break;
default: /// class C
fileop("\n Class----------------------: Class C IP range\n"); /// add to file
printf("\n Network Address \tSubnet Mask \t\tFirst Host \t\tLast Host \t\tBroadcast Address\n\n");
fileop("\n Network Address \tSubnet Mask \t\tFirst Host \t\tLast Host \t\tBroadcast Address\n\n"); /// add to file
for(int i = 0; i < subNetsAll; i++){
if(i == subNetsRequest){
printf("\n **Additional subnets: \n\n");
fileop("\n Additional subnets: \n\n"); /// add to file
}
printf(" %d.%d.%d.%d \t", octets[0] , octets[1] , octets[2] , i*blockSize);
printf("255.255.255.%d \t" , 256 - blockSize);
printf("%d.%d.%d.%d \t", octets[0] , octets[1] , octets[2] , i*blockSize +1);
printf("%d.%d.%d.%d \t", octets[0] , octets[1] , octets[2] , (i + 1)*blockSize - 2);
printf("%d.%d.%d.%d\n", octets[0] , octets[1] , octets[2] , (i + 1)*blockSize - 1);
fileDataGenarate(i, blockSize, 2 , octets);
}
}
printf("\n ** Created subnet count : %d \n ** Host count of each subnet : %d\n" , subNetsAll ,hostCount);
printf("\n\t\t\t***Subnet count always 2 to the power n blocks in FLSM***\n");
fileop("\n\t\t\t\t***Subnet count always 2 to the power n blocks in FLSM***\n"); /// add to file
fileop("\n\n\t************************************ Thank you using IP subnetter ************************************"); /// add to file
}
/**************************************** file data generate area start **********************************************/
void fileDataGenarate(int i , int blockSize, int index ,int octets[4]){
char sbMskC[] = "255.255.255.";
char sbMskB[] = "255.255.";
char sbMskA[] = "255.";
char ips[16] = "";
char retStr[85] = " ";
char tmp[4];
char dot[] =".";
char endIp[] = "\n";
char tab[] = "\t\t";
char val1[] = "255";
char val2[] = "254";
char val3[] = "0";
char val4[] = "1";
switch (index){
case 0:
itoa(octets[0],tmp,10);
strcat(ips,tmp);
strcat(ips ,dot);
itoa(i*blockSize,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr,tab);
itoa(256 -blockSize,tmp,10);
strcat(retStr,sbMskA);
strcat(retStr,tmp);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr,tab);
itoa(i*blockSize,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr ,dot);
strcat(retStr ,val4);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val1);
strcat(retStr ,dot);
strcat(retStr ,val2);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val1);
strcat(retStr ,dot);
strcat(retStr ,val1);
strcat(retStr,endIp);
fileop(retStr);
break;
case 1:
for(int k =0; k<2; k++){
itoa(octets[k],tmp,10);
strcat(ips,tmp);
strcat(ips ,dot);
}
itoa(i*blockSize,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr,tab);
itoa(256 -blockSize,tmp,10);
strcat(retStr,sbMskB);
strcat(retStr,tmp);
strcat(retStr ,dot);
strcat(retStr ,val3);
strcat(retStr,tab);
itoa(i*blockSize,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val4);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val2);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr ,dot);
strcat(retStr ,val1);
strcat(retStr,endIp);
fileop(retStr);
break;
default:
for(int k =0; k<3; k++){
itoa(octets[k],tmp,10);
strcat(ips,tmp);
strcat(ips ,dot);
}
itoa(i*blockSize,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr,tab);
itoa(256 -blockSize,tmp,10);
strcat(retStr,sbMskC);
strcat(retStr,tmp);
strcat(retStr,tab);
itoa(i*blockSize+1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 2,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr,tab);
itoa((i + 1)*blockSize - 1,tmp,10);
strcat(retStr,ips);
strcat(retStr ,tmp);
strcat(retStr,endIp);
fileop(retStr);
}
}
/**************************************** file data generate area end **********************************************/