1/* $NetBSD: kverify.c,v 1.2 2017/01/28 21:31:45 christos Exp $ */ 2 3/* 4 * Copyright (c) 1997 - 2005, 2007 Kungliga Tekniska H��gskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#include "kuser_locl.h" 37 38static int help_flag = 0; 39static int version_flag = 0; 40 41static struct getargs args[] = { 42 { "version", 0, arg_flag, &version_flag, NULL, NULL }, 43 { "help", 0, arg_flag, &help_flag, NULL, NULL } 44}; 45 46static void 47usage (int ret) 48{ 49 arg_printusage (args, 50 sizeof(args)/sizeof(*args), 51 NULL, 52 "[principal]"); 53 exit (ret); 54} 55 56int 57main(int argc, char **argv) 58{ 59 krb5_context context; 60 krb5_error_code ret; 61 krb5_creds cred; 62 krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP}; 63 krb5_get_init_creds_opt *get_options; 64 krb5_verify_init_creds_opt verify_options; 65 krb5_principal principal = NULL; 66 int optidx = 0; 67 68 setprogname (argv[0]); 69 70 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) 71 usage(1); 72 73 if (help_flag) 74 usage (0); 75 76 if(version_flag) { 77 print_version(NULL); 78 exit(0); 79 } 80 81 argc -= optidx; 82 argv += optidx; 83 84 ret = krb5_init_context(&context); 85 if (ret) 86 errx (1, "krb5_init_context failed: %d", ret); 87 88 ret = krb5_get_init_creds_opt_alloc (context, &get_options); 89 if (ret) 90 krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc"); 91 92 krb5_get_init_creds_opt_set_preauth_list (get_options, 93 pre_auth_types, 94 1); 95 96 krb5_verify_init_creds_opt_init (&verify_options); 97 98 if (argc) { 99 ret = krb5_parse_name(context, argv[0], &principal); 100 if (ret) 101 krb5_err(context, 1, ret, "krb5_parse_name: %s", argv[0]); 102 } else { 103 ret = krb5_get_default_principal(context, &principal); 104 if (ret) 105 krb5_err(context, 1, ret, "krb5_get_default_principal"); 106 107 } 108 109 ret = krb5_get_init_creds_password (context, 110 &cred, 111 principal, 112 NULL, 113 krb5_prompter_posix, 114 NULL, 115 0, 116 NULL, 117 get_options); 118 if (ret) 119 krb5_err(context, 1, ret, "krb5_get_init_creds"); 120 121 ret = krb5_verify_init_creds (context, 122 &cred, 123 NULL, 124 NULL, 125 NULL, 126 &verify_options); 127 if (ret) 128 krb5_err(context, 1, ret, "krb5_verify_init_creds"); 129 krb5_free_cred_contents (context, &cred); 130 krb5_free_context (context); 131 return 0; 132} 133