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/*
* Copyright (c) 1997-2000 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 "kpasswd_locl.h"
RCSID("$KTH: kpasswd.c,v 1.23 2000/12/31 07:48:34 assar Exp $");
static int version_flag;
static int help_flag;
static struct getargs args[] = {
{ "version", 0, arg_flag, &version_flag },
{ "help", 0, arg_flag, &help_flag }
};
static void
usage (int ret, struct getargs *a, int num_args)
{
arg_printusage (a, num_args, NULL, "[principal]");
exit (ret);
}
int
main (int argc, char **argv)
{
krb5_error_code ret;
krb5_context context;
krb5_principal principal;
int optind = 0;
krb5_get_init_creds_opt opt;
krb5_creds cred;
int result_code;
krb5_data result_code_string, result_string;
char pwbuf[BUFSIZ];
optind = krb5_program_setup(&context, argc, argv,
args, sizeof(args) / sizeof(args[0]), usage);
if (help_flag)
usage (0, args, sizeof(args) / sizeof(args[0]));
if(version_flag){
print_version (NULL);
exit(0);
}
krb5_get_init_creds_opt_init (&opt);
krb5_get_init_creds_opt_set_tkt_life (&opt, 300);
krb5_get_init_creds_opt_set_forwardable (&opt, FALSE);
krb5_get_init_creds_opt_set_proxiable (&opt, FALSE);
argc -= optind;
argv += optind;
if (argc > 1)
usage (1, args, sizeof(args) / sizeof(args[0]));
ret = krb5_init_context (&context);
if (ret)
errx (1, "krb5_init_context failed: %d", ret);
if(argv[0]) {
ret = krb5_parse_name (context, argv[0], &principal);
if (ret)
krb5_err (context, 1, ret, "krb5_parse_name");
} else
principal = NULL;
ret = krb5_get_init_creds_password (context,
&cred,
principal,
NULL,
krb5_prompter_posix,
NULL,
0,
"kadmin/changepw",
&opt);
switch (ret) {
case 0:
break;
case KRB5_LIBOS_PWDINTR :
return 1;
case KRB5KRB_AP_ERR_BAD_INTEGRITY :
case KRB5KRB_AP_ERR_MODIFIED :
krb5_errx(context, 1, "Password incorrect");
break;
default:
krb5_err(context, 1, ret, "krb5_get_init_creds");
}
krb5_data_zero (&result_code_string);
krb5_data_zero (&result_string);
if(des_read_pw_string (pwbuf, sizeof(pwbuf), "New password: ", 1) != 0)
return 1;
ret = krb5_change_password (context, &cred, pwbuf,
&result_code,
&result_code_string,
&result_string);
if (ret)
krb5_err (context, 1, ret, "krb5_change_password");
printf ("Reply from server: %.*s\n", (int)result_string.length,
(char *)result_string.data);
krb5_data_free (&result_code_string);
krb5_data_free (&result_string);
krb5_free_creds_contents (context, &cred);
krb5_free_context (context);
return result_code;
}
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