/********************************************************************************
 $Id: crypt.c,v 1.1 2003/10/27 00:00:00 Artis Exp $

 to compile: gcc -Wall -o crypt crypt.c -lcrypt
 to use:     crypt <password>

********************************************************************************/

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

void usage(char *);

int
main (int argc, char *argv[])
{

  char salt[24];
  int i, r, r1, r2;

  if (argc != 2) usage(argv[0]);

  srand(time(0));
  for(i=0; i <= 1; i++) {
    r = rand();
    r = r & 127;
    if (r < 46)
      r += 46;
    if (r > 57 && r < 65)
      r += 7;
    if (r > 90 && r < 97) 
      r += 6;
    if (r > 122)
      r -= 5;
    if (i == 0)
      r1 = r;
    if (i == 1)
      r2 = r;
  }

  sprintf(salt, "%c%c", r1, r2);
  printf("%s\n", crypt(argv[1], salt));

  exit(EX_OK);
}

void
usage(char *progname)
{
  fprintf(stderr, "usage: '%s <password>'\n", progname);
  exit(EX_USAGE);
}