Question

Write a script in C that will do the following :

1. Create the directory ZHW3.

2. Verify that the directory is created by display all information related to the directory and not just the name of the directory.

3. Assume that the input from the command is used to validate password strength. Here are a few assumptions for the password string.

• Length – minimum of 8 characters.

• Contain alphabets , numbers , and @ # $ % & * symbols.

• Include both the small and capital case letters.

If the password doesn’t comply with any of the above conditions, then the script should report it as a <Weak Password>. Otherwise, the script should report it as a <Strong Password>.

The script must save the strong password it in a password file ( password.txt ) in ZHW3 Directory. If the file does not exist , create the file.

Repeat until N or n is entered.

If you enter Y|y, then new password is entered from the keyboard

Answer 1

// C++ code to validate a password  
#include<bits/stdc++.h> 

using namespace std; 

  
// A utility function to check  
// whether a password is valid or not  
char* dirname = "ZHW3";

bool isValid(string password)  
{  

  

    // For checking if password length  

    // is between 8 and 15  

    if (!((password.length() >= 8) &&  

          (password.length() <= 15))) 

        return false;  

  

    // To check space  

    if (password.find(" ") != 

        std::string::npos) 

        return false;  

  

    if (true) 

    {  

        int count = 0;  

  

        // Check digits from 0 to 9  

        for(int i = 0; i <= 9; i++) 

        {  

              

            // To convert int to string  

            string str1 = to_string(i);  

  

            if (password.find(str1) !=  

                std::string::npos)  

                count = 1;  

        }  

        if (count == 0)  

            return false;  

    }  

  

    // For special characters  

    if (!((password.find("@") != std::string::npos) || 

          (password.find("#") != std::string::npos) || 

          (password.find("!") != std::string::npos) || 

          (password.find("~") != std::string::npos) || 

          (password.find("$") != std::string::npos) || 

          (password.find("%") != std::string::npos) || 

          (password.find("^") != std::string::npos) || 

          (password.find("&") != std::string::npos) || 

          (password.find("*") != std::string::npos) || 

          (password.find("(") != std::string::npos) || 

          (password.find(")") != std::string::npos) || 

          (password.find("-") != std::string::npos) || 

            (password.find("+") != std::string::npos) || 

          (password.find("/") != std::string::npos) || 

          (password.find(":") != std::string::npos) || 

          (password.find(".") != std::string::npos) || 

          (password.find(",") != std::string::npos) || 

          (password.find("<") != std::string::npos) || 

          (password.find(">") != std::string::npos) || 

          (password.find("?") != std::string::npos) || 

          (password.find("|") != std::string::npos))) 

        return false; 

      

    if (true) 

    {  

        int count = 0;  

  

        // Checking capital letters  

        for(int i = 65; i <= 90; i++)  

        {  

              

            // Type casting  

            char c = (char)i; 

            string str1(1, c); 

              

            if (password.find(str1) != 

                std::string::npos)  

                count = 1;  

        }  

        if (count == 0)  

            return false;  

    }  

  

    if (true) 

    {  

        int count = 0;  

  

        // Checking small letters  

        for(int i = 90; i <= 122; i++) 

        {  

              

            // Type casting  

            char c = (char)i;  

            string str1(1, c);  

  

            if (password.find(str1) !=  

                std::string::npos) 

                count = 1; 

        }  

        if (count == 0)  

            return false; 

    }  

  

    // If all conditions fails  

    return true;  
}  

  
// Driver code  

int main()  
{  

    string password1 = "ZHW3";  

      

    if (isValid(password1))  

        cout << "Valid Password" << endl;  

    else

        cout << "Invalid Password" << endl; 

  

    string password2 = "$ZHW3" ; 

      

    if (isValid(password2))  

        cout << "Valid Password" << endl;  

    else

        cout << "Invalid Password" << endl; 
}