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/*
* Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "kadmin_locl.h"
RCSID("$Id: cpw.c,v 1.13 2001/08/10 08:05:35 joda Exp $");
struct cpw_entry_data {
int random_key;
int random_password;
char *password;
krb5_key_data *key_data;
};
static struct getargs args[] = {
{ "random-key", 'r', arg_flag, NULL, "set random key" },
{ "random-password", 0, arg_flag, NULL, "set random password" },
{ "password", 'p', arg_string, NULL, "princial's password" },
{ "key", 0, arg_string, NULL, "DES key in hex" }
};
static int num_args = sizeof(args) / sizeof(args[0]);
static void
usage(void)
{
arg_printusage(args, num_args, "passwd", "principal...");
}
static int
set_random_key (krb5_principal principal)
{
krb5_error_code ret;
int i;
krb5_keyblock *keys;
int num_keys;
ret = kadm5_randkey_principal(kadm_handle, principal, &keys, &num_keys);
if(ret)
return ret;
for(i = 0; i < num_keys; i++)
krb5_free_keyblock_contents(context, &keys[i]);
free(keys);
return 0;
}
static int
set_random_password (krb5_principal principal)
{
krb5_error_code ret;
char pw[128];
random_password (pw, sizeof(pw));
ret = kadm5_chpass_principal(kadm_handle, principal, pw);
if (ret == 0) {
char *princ_name;
krb5_unparse_name(context, principal, &princ_name);
printf ("%s's password set to `%s'\n", princ_name, pw);
free (princ_name);
}
memset (pw, 0, sizeof(pw));
return ret;
}
static int
set_password (krb5_principal principal, char *password)
{
krb5_error_code ret = 0;
char pwbuf[128];
if(password == NULL) {
char *princ_name;
char *prompt;
krb5_unparse_name(context, principal, &princ_name);
asprintf(&prompt, "%s's Password: ", princ_name);
free (princ_name);
ret = des_read_pw_string(pwbuf, sizeof(pwbuf), prompt, 1);
free (prompt);
if(ret){
return 0; /* XXX error code? */
}
password = pwbuf;
}
if(ret == 0)
ret = kadm5_chpass_principal(kadm_handle, principal, password);
memset(pwbuf, 0, sizeof(pwbuf));
return ret;
}
static int
set_key_data (krb5_principal principal, krb5_key_data *key_data)
{
krb5_error_code ret;
ret = kadm5_chpass_principal_with_key (kadm_handle, principal,
3, key_data);
return ret;
}
static int
do_cpw_entry(krb5_principal principal, void *data)
{
struct cpw_entry_data *e = data;
if (e->random_key)
return set_random_key (principal);
else if (e->random_password)
return set_random_password (principal);
else if (e->key_data)
return set_key_data (principal, e->key_data);
else
return set_password (principal, e->password);
}
int
cpw_entry(int argc, char **argv)
{
krb5_error_code ret;
int i;
int optind = 0;
struct cpw_entry_data data;
int num;
char *key_string;
krb5_key_data key_data[3];
data.random_key = 0;
data.random_password = 0;
data.password = NULL;
data.key_data = NULL;
key_string = NULL;
args[0].value = &data.random_key;
args[1].value = &data.random_password;
args[2].value = &data.password;
args[3].value = &key_string;
if(getarg(args, num_args, argc, argv, &optind)){
usage();
return 0;
}
num = 0;
if (data.random_key)
++num;
if (data.random_password)
++num;
if (data.password)
++num;
if (key_string)
++num;
if (num > 1) {
printf ("give only one of "
"--random-key, --random-password, --password, --key\n");
return 0;
}
if (key_string) {
const char *error;
if (parse_des_key (key_string, key_data, &error)) {
printf ("failed parsing key `%s': %s\n", key_string, error);
return 0;
}
data.key_data = key_data;
}
argc -= optind;
argv += optind;
for(i = 0; i < argc; i++)
ret = foreach_principal(argv[i], do_cpw_entry, "cpw", &data);
if (data.key_data) {
int16_t dummy;
kadm5_free_key_data (kadm_handle, &dummy, key_data);
}
return 0;
}
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