Password Validation Using C: getch()

[Basavaraj]

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1. #include<stdio.h>  
2. void main()  
3. {  
4.   char pwd[20]="Oracle";  // your password.  
5.   char ent_pwd[20];  // The typed password will be stored in this array.  
6.   char ch;   
7.   int i=0;  // used refer array index.   
8.   printf("Enter the password : ");  
9.   
10.  while( (ch=getch()) !='\r' )  // getch() is used to read the char soon after pressing the key.  
11.  {  
12.     ent_pwd[i++]=ch;  
13.     printf("*");  // '*' is echoed for each keypress  
14.  }  
15.  ent_pwd[i]='\0';  // assign null char to string( user entered password ).  
16.   
17.  if( strcmp(pwd,ent_pwd)==0 ) // if password matched  
18.  printf("\nLogin success full");  
19.  else  
20.  printf("\nLogin failed");  
21.   
22.  getch();  // here getch() is used to go to user screen.( general use of getch() )  
23.   
24. }  

#include<stdio.h>
void main()
{
  char pwd[20]="Oracle";  // your password.
  char ent_pwd[20];  // The typed password will be stored in this array.
  char ch; 
  int i=0;  // used refer array index. 
  printf("Enter the password : ");

 while( (ch=getch()) !='\r' )  // getch() is used to read the char soon after pressing the key.
 {
    ent_pwd[i++]=ch;
    printf("*");  // '*' is echoed for each keypress
 }
 ent_pwd[i]='\0';  // assign null char to string( user entered password ).

 if( strcmp(pwd,ent_pwd)==0 ) // if password matched
 printf("\nLogin success full");
 else
 printf("\nLogin failed");

 getch();  // here getch() is used to go to user screen.( general use of getch() )

}

Note : getch() is unformatted unbuffered character input function,unbuffered means the char typed will read readily without waiting for enter key to be pressed.

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