145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
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/*
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* Copyright (c) 1997-1999 Kungliga Tekniska H<EFBFBD>gskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kpasswd_locl.h"
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RCSID("$Id: kpasswd.c,v 1.20 1999/12/02 17:05:00 joda Exp $");
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static int version_flag;
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static int help_flag;
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static struct getargs args[] = {
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{ "version", 0, arg_flag, &version_flag },
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{ "help", 0, arg_flag, &help_flag }
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};
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static void
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usage (int ret)
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{
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arg_printusage (args,
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sizeof(args)/sizeof(*args),
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NULL,
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"[principal]");
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exit (ret);
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}
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int
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main (int argc, char **argv)
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{
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krb5_error_code ret;
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krb5_context context;
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krb5_principal principal;
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int optind = 0;
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krb5_get_init_creds_opt opt;
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krb5_creds cred;
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int result_code;
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krb5_data result_code_string, result_string;
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char pwbuf[BUFSIZ];
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optind = krb5_program_setup(&context, argc, argv,
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args, sizeof(args) / sizeof(args[0]), NULL);
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if (help_flag)
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usage (0);
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if(version_flag){
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print_version (NULL);
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exit(0);
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}
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krb5_get_init_creds_opt_init (&opt);
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krb5_get_init_creds_opt_set_tkt_life (&opt, 300);
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argc -= optind;
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argv += optind;
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if (argc > 1)
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usage(1);
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ret = krb5_init_context (&context);
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if (ret)
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errx (1, "krb5_init_context: %s", krb5_get_err_text(context, ret));
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if(argv[0]) {
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ret = krb5_parse_name (context, argv[0], &principal);
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if (ret)
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krb5_err (context, 1, ret, "krb5_parse_name");
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} else
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principal = NULL;
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ret = krb5_get_init_creds_password (context,
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&cred,
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principal,
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NULL,
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krb5_prompter_posix,
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NULL,
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0,
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"kadmin/changepw",
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&opt);
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switch (ret) {
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case 0:
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break;
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case KRB5_LIBOS_PWDINTR :
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return 1;
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case KRB5KRB_AP_ERR_BAD_INTEGRITY :
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case KRB5KRB_AP_ERR_MODIFIED :
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krb5_errx(context, 1, "Password incorrect");
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break;
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default:
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krb5_err(context, 1, ret, "krb5_get_init_creds");
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}
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krb5_data_zero (&result_code_string);
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krb5_data_zero (&result_string);
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if(des_read_pw_string (pwbuf, sizeof(pwbuf), "New password: ", 1) != 0)
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return 1;
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ret = krb5_change_password (context, &cred, pwbuf,
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&result_code,
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&result_code_string,
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&result_string);
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if (ret)
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krb5_err (context, 1, ret, "krb5_change_password");
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printf ("Reply from server: %.*s\n", (int)result_string.length,
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(char *)result_string.data);
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krb5_data_free (&result_code_string);
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krb5_data_free (&result_string);
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krb5_free_creds_contents (context, &cred);
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krb5_free_context (context);
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return result_code;
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}
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