C Program To Accept Password

Submitted by Srikanth on Tuesday, 11 December 200712 Comments

This is a simple login program in C. While accepting password it masks each character using ‘*’ symbol and display the password in the next line after the user hits Enter key. It also accepts backspaces and acts accordingly.

#include<stdio.h>
#include<conio.h>

char pw[25],ch;
int i;
void main()
{
clrscr();
puts(“Enter password”);
while(1)
{
if(i<0)
i=0;
ch=getch();
if(ch==13)
break; /*13 is ASCII value of ENTER*/
if(ch==8) /*ASCII value of BACKSPACE*/
{
putch(‘\b’);
putch(NULL);
putch(‘\b’);
–i;
continue;
}
pw[i++]=ch;
ch=’*';
putch(ch);
}
pw[i]=’\0′;
printf(“\n\n%s”,pw);
getch();
}

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12 Comments »

Doodle77 said:

Go home.

- 15 December 2007 at 8:06 PM

Anonymous said:

Wats great in this?

- 19 January 2008 at 12:45 PM

Everyone said:

Good

- 21 February 2009 at 1:03 PM

Virendra said:

hi Shrikant,
can you please tell me from where can i get c compiler

- 22 March 2009 at 2:08 PM

Srikanth (author) said:

@ Virendra

Goto Borland site. Or search on google for Turbo C/C++ compiler

- 23 March 2009 at 5:33 PM

crusader said:

I was wondering if dev-c++ is a good compiler? and if it compiles in c also? Thanks

- 28 December 2009 at 4:33 AM

Akash said:

Hi Srikanth Bro …
I use Turbo c++ 3.1
Which is the best for writing, Editing and compiling C Program ???

- 12 May 2010 at 9:11 PM

Anitha Jose Kurian said:

Thankyou so much for the code for masking the password….I didn’t understand it fully but it helped a lot.

- 26 July 2010 at 8:44 PM

Arunim said:

I Like But I Face An Error on it that 16 bit dos subsystem.What is this????????please help on this topic!!!!!!!!

- 5 September 2010 at 10:19 PM

Bibhuti said:

great!!!!!!!!but it is not working on dev c++.what modification should be done??? plz reply….

- 29 October 2010 at 12:19 PM

munna prajapati said:

Thanking you.

- 19 February 2011 at 11:36 PM

trong ky said:

thank you very good article. but I’m running on turbo c saw many errors mean? would you help the address thank you very much taotau9x@gmail.com

- 15 June 2011 at 5:43 PM

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