1 /* 2 * Copyright (c) 1997 - 2005, 2007 Kungliga Tekniska H�gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include "kuser_locl.h" 35 36 RCSID("$Id: kverify.c 19920 2007-01-15 23:21:32Z lha $"); 37 38 static int help_flag = 0; 39 static int version_flag = 0; 40 41 static struct getargs args[] = { 42 { "version", 0, arg_flag, &version_flag }, 43 { "help", 0, arg_flag, &help_flag } 44 }; 45 46 static void 47 usage (int ret) 48 { 49 arg_printusage (args, 50 sizeof(args)/sizeof(*args), 51 NULL, 52 "[principal]"); 53 exit (ret); 54 } 55 56 int 57 main(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 } 103 104 ret = krb5_get_init_creds_password (context, 105 &cred, 106 principal, 107 NULL, 108 krb5_prompter_posix, 109 NULL, 110 0, 111 NULL, 112 get_options); 113 if (ret) 114 errx (1, "krb5_get_init_creds: %s", krb5_get_err_text(context, ret)); 115 116 ret = krb5_verify_init_creds (context, 117 &cred, 118 NULL, 119 NULL, 120 NULL, 121 &verify_options); 122 if (ret) 123 errx (1, "krb5_verify_init_creds: %s", 124 krb5_get_err_text(context, ret)); 125 krb5_free_cred_contents (context, &cred); 126 krb5_free_context (context); 127 return 0; 128 } 129