When i got to the chapter on pointers in my book, i just put it down, i couldnt follow it. As far as i know a pointer is something that holds the location of a variable, correct? Well here's my program, i figured out a login scheme that i think is excellent, i think its irreversible. Ok the problem is i dont want everything to be inside one infinite loop, things get too clustered, so i want the login to be in one while(1){} loop and the actual program to be in another. The problem is i need 2 variables from the 1st loop to be used to access the second. Any help would be greatly appreciated.
Code:#include <iostream> #include <fstream> #include <windows.h> #include <string> using namespace std; int main() { /* Database program for Blacksquadron Auther: Doug Daly Version: 1.00 */ //Universal Vars //infinite loop while(1) { //title cout<<"**************************\n"; cout<<"* Black Squadron *\n"; cout<<"* Database *\n"; cout<<"**************************\n\n"; //login //init all vars char username[25]; char password[25]; char encinfo[25]; char tempenc[25]; char tempencI[25]; char tempencII[25]; int xleng; int i; //get information cout<<"Username: "; cin.getline(username, 25); cout<<"Password: "; cin.getline(password, 25); cout<<"\nPress enter to begin encryption...\n"; cin.ignore(); //encrypt for(i=0; i<25; i++) { tempenc[i]=username[i]+password[i]; } xleng = strlen(tempenc); if((xleng%2)!=0) { tempenc[xleng+1]='x'; xleng = strlen(tempenc); } for(int j=0; j<(xleng/2); j++) { tempencI[j]=tempenc[j]; } i=0; for(int k=(xleng/2); k<xleng; k++) { tempenc[i]=tempenc[k]; i++; } for(int l=0; l<(xleng/2); l++) { encinfo[l]=tempencI[l]^tempencII[l]; } //convert non-standard characters to standard for(int m=0; m<(strlen(encinfo)); m++) { encinfo[m]=char(((int(encinfo[m]))%26)+65); } //END ENCRYPTION //check result with known result //get import variables char ch; char importloc[100]="C:/Documents and Settings/Douglas/My Documents/C++/Test/known.cmc"; char importcode[16]; i=0; //import ifstream fin(importloc); while(fin.get(ch)) { importcode[i]=ch; i++; } fin.close(); //evaluate //eval. vars int evalnum=0; int encleng; //evaluate both known and new info if(strlen(importcode)==strlen(encinfo)) { encleng=(strlen(encinfo)); }else{ cout<<"Length Mismatch\n"; continue; } for(i=0; i<encleng; i++) { if(encinfo[i]==importcode[i]) { evalnum++; } } if(evalnum==encleng) { cout<<"Successful Login!\n"; break; }else{ cout<<"Incorrect Login Information...\n"; } } //check login correct if(evalnum==encleng) { //another infinite loop while(1) { //Program refresh system("cls"); //title cout<<"|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|\n"; cout<<"|BS| DATABASE |BS|\n"; cout<<"|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|BS|\n\n"; //menu } } return 0; }
