1 /* 2 * Copyright (c) 1997 - 2005, 2007 Kungliga Tekniska Högskolan 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 static int help_flag = 0; 37 static int version_flag = 0; 38 39 static struct getargs args[] = { 40 { "version", 0, arg_flag, &version_flag }, 41 { "help", 0, arg_flag, &help_flag } 42 }; 43 44 static void 45 usage (int ret) 46 { 47 arg_printusage (args, 48 sizeof(args)/sizeof(*args), 49 NULL, 50 "[principal]"); 51 exit (ret); 52 } 53 54 int 55 main(int argc, char **argv) 56 { 57 krb5_context context; 58 krb5_error_code ret; 59 krb5_creds cred; 60 krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP}; 61 krb5_get_init_creds_opt *get_options; 62 krb5_verify_init_creds_opt verify_options; 63 krb5_principal principal = NULL; 64 int optidx = 0; 65 66 setprogname (argv[0]); 67 68 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) 69 usage(1); 70 71 if (help_flag) 72 usage (0); 73 74 if(version_flag) { 75 print_version(NULL); 76 exit(0); 77 } 78 79 argc -= optidx; 80 argv += optidx; 81 82 ret = krb5_init_context(&context); 83 if (ret) 84 errx (1, "krb5_init_context failed: %d", ret); 85 86 ret = krb5_get_init_creds_opt_alloc (context, &get_options); 87 if (ret) 88 krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc"); 89 90 krb5_get_init_creds_opt_set_preauth_list (get_options, 91 pre_auth_types, 92 1); 93 94 krb5_verify_init_creds_opt_init (&verify_options); 95 96 if (argc) { 97 ret = krb5_parse_name(context, argv[0], &principal); 98 if (ret) 99 krb5_err(context, 1, ret, "krb5_parse_name: %s", argv[0]); 100 } else { 101 ret = krb5_get_default_principal(context, &principal); 102 if (ret) 103 krb5_err(context, 1, ret, "krb5_get_default_principal"); 104 105 } 106 107 ret = krb5_get_init_creds_password (context, 108 &cred, 109 principal, 110 NULL, 111 krb5_prompter_posix, 112 NULL, 113 0, 114 NULL, 115 get_options); 116 if (ret) 117 krb5_err(context, 1, ret, "krb5_get_init_creds"); 118 119 ret = krb5_verify_init_creds (context, 120 &cred, 121 NULL, 122 NULL, 123 NULL, 124 &verify_options); 125 if (ret) 126 krb5_err(context, 1, ret, "krb5_verify_init_creds"); 127 krb5_free_cred_contents (context, &cred); 128 krb5_free_context (context); 129 return 0; 130 } 131