From reedwv@Stupi.SE Thu Aug 17 15:39:30 1995
Date: Thu, 17 Aug 1995 14:39:38 +0100 (BST)
From: Bill Reed <reedwv@expu79.stp.xfi.bp.com>
X-Sender: reedwv@expu79
To: Ulla Sandberg <ulla@Stupi.SE>
Subject: Re: SUMMARY: Password generator
In-Reply-To: <CMM.0.90.0.808579910.ulla@Junk.Stupi.SE>
Message-Id: <Pine.SUN.3.91.950817143834.12334D-100000@expu79>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

Dunno if ypu've got this one ? randpass

B.P. Exploration		email: reedwv@expu79.stp.xfi.bp.com    		
Uxbridge One			       reedwv@txpcap.hou.xwh.bp.com
Harefield Road			tel: +44 1895 877429			
Uxbridge UB8 1PD  U.K.		fax: +44 1895 877345	 
* User Error! Replace User and strike any key...
---------------------------------------------------------


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

extern char	*crypt();

#ifdef RAND48
#define random	lrand48
#define srandom	srand48
#endif

#define DEFAULTLENGTH 8		/* default length of passwords */

char vowels[] =		"aeiou";
char consonants[] =	"bcdfghjklmnpqrstvwxyz";
char saltchars[] =
	"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

#define Vowel()		vowels[random() % (sizeof(vowels)-1)]
#define Consonant()	consonants[random() % (sizeof(consonants)-1)]
#define Saltchar()	saltchars[random() % (sizeof(saltchars)-1)]

main(argc, argv)

int	argc;
char	*argv[];

{
	int	howmany, count, chr, length = 0, pid;
	char	pwsalt[3], password[20];

	if (argc < 2) {
		fprintf (stderr, "usage: %s howmany [length]\n", argv[0]);
		exit (1);
	}

	howmany = atoi (argv[1]);
	if (argc > 2)
		length = atoi (argv[2]);
	if (length == 0)
		length = DEFAULTLENGTH;
	else if (length < 6)
		length = 6;
	else if (length > 16)
		length = 16;

	pid = getpid();
	srandom(((int)(time((time_t *)0))/pid)+pid+3873);

	pwsalt[3] = 0;

	for (count = 0; count < howmany; count++)
	{
		pwsalt[0] = Saltchar();
		pwsalt[1] = Saltchar();
		password[0] = 0;

		for (chr = 0; chr < length; chr += 2)
			password[chr] = Consonant();
		for (chr = 1; chr < length; chr += 2)
			password[chr] = Vowel();
		for (chr = 0; chr < length; chr++)
			if (!(random() % 3))
				password[chr] += 'A' - 'a';
		printf ("%-20s%s\n", password, crypt(password, pwsalt));
	}
}
----------------------------------------------------------------------------------