auto generate password

Hi
Is there anyway to automaticlly generate password with combine of numbers and characters, alphanumeric...such as:
Your Password have been assigned: XvM23zY44CHoe

I have try random function but it generate only numbers, not
characters.
Your help would be appreciated
Coconut

What you could do is write a function that generates integers values in the appropriate ranges for ASCII.

IOW, if it generates 49, then cast it to a char and you'll have '1'.

Try using rand on an array of valid items for the password:

Code:

---

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define len (sizeof valid / sizeof valid[0])

int main ( void )
{
  int i;
  const char valid[] =
    "1234567890abcdefghijklmnopqrstu"
    "vwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

  srand ( (unsigned)time ( NULL ) );
  for ( i = 0; i < 8; i++ )
    fputc ( valid[rand() / ( RAND_MAX / len )], stdout );
  fputc ( '\n', stdout );

  return 0;
}

---

-Prelude

Quote:

---

Originally posted by Prelude
Try using rand on an array of valid items for the password:

Code:

---

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define len (sizeof valid / sizeof valid[0])

int main ( void )
{
  int i;
  const char valid[] =
    "1234567890abcdefghijklmnopqrstu"
    "vwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";

  srand ( (unsigned)time ( NULL ) );
  for ( i = 0; i < 8; i++ )
    fputc ( valid[rand() / ( RAND_MAX / len )], stdout );
  fputc ( '\n', stdout );

  return 0;
}

---

-Prelude

---

Wow, that's very qwick help. Thank you
Coconut
+===========================================+
+Prelude is my favorite guru. No one on the earth like Prelude +
+===========================================+

Or you can try my program here :cool:.