1 /**

     2  *     $Id: crypt.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $

     3  * $Source: /development/c/demos/crypt.c,v $

     4  *

     5  */

     6 

     7 #include <stdio.h>

     8 #include <stdlib.h>

     9 #include <string.h>

    10 

    11 int main (int argc, char **argv)

    12 {

    13     char *data;

    14     int i;

    15 

    16     if (argc != 2) {

    17         printf ("Usage: %s <str>\n", argv[0]);

    18         return EXIT_SUCCESS;

    19     }

    20 

    21     /*

    22      * Its already allocated

    23      */

    24     data = argv[1];

    25 

    26     for (i = 0; data[i]; i++)

    27         data[i] = data[i] + 1;

    28 

    29     printf ("EnCrypted Data: %s\n", data);

    30 

    31     for (i = 0; data[i]; i++)

    32         data[i] = data[i] - 1;

    33 

    34     printf ("DeCrypted Data: %s\n", data);

    35 

    36     return 0;

    37 }