/**

 * md5.c

 * Copyright (C) 2008 Markus Broeker

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <openssl/md5.h>

typedef unsigned char u_char;

int main (int argc, char **argv)

{

    char buffer[80];

    char text[80];

    unsigned char *md5_hash;

    char result[33];

    char byte[3];

    int i, j;

    if (argc != 2) {

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

        return EXIT_FAILURE;

    }

    /*

     * MD5 alters the input buffer

     */

    strncpy (buffer, argv[1], sizeof (buffer) - 1);

    strncpy (text, argv[1], sizeof (text) - 1);

    md5_hash = MD5 ((u_char *) buffer, strlen (buffer), NULL);

    for (i = 0, j = 0; i < 16; i++) {

        sprintf (byte, "%02x", (md5_hash[i] & 0xFF));

        result[j++] = byte[0];

        result[j++] = byte[1];

    }

    result[j] = 0;

    printf ("%s: %s\n", text, result);

    return EXIT_SUCCESS;

}