1178825Sdfr/* 2178825Sdfr * Copyright (c) 2008 Kungliga Tekniska H�gskolan 3178825Sdfr * (Royal Institute of Technology, Stockholm, Sweden). 4178825Sdfr * All rights reserved. 5178825Sdfr * 6178825Sdfr * Redistribution and use in source and binary forms, with or without 7178825Sdfr * modification, are permitted provided that the following conditions 8178825Sdfr * are met: 9178825Sdfr * 10178825Sdfr * 1. Redistributions of source code must retain the above copyright 11178825Sdfr * notice, this list of conditions and the following disclaimer. 12178825Sdfr * 13178825Sdfr * 2. Redistributions in binary form must reproduce the above copyright 14178825Sdfr * notice, this list of conditions and the following disclaimer in the 15178825Sdfr * documentation and/or other materials provided with the distribution. 16178825Sdfr * 17178825Sdfr * 3. Neither the name of KTH nor the names of its contributors may be 18178825Sdfr * used to endorse or promote products derived from this software without 19178825Sdfr * specific prior written permission. 20178825Sdfr * 21178825Sdfr * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY 22178825Sdfr * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23178825Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24178825Sdfr * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE 25178825Sdfr * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26178825Sdfr * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27178825Sdfr * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 28178825Sdfr * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29178825Sdfr * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30178825Sdfr * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31178825Sdfr * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 32178825Sdfr 33178825Sdfr#include "krb5_locl.h" 34178825Sdfr#include <err.h> 35178825Sdfr#include <getarg.h> 36178825Sdfr 37178825SdfrRCSID("$Id$"); 38178825Sdfr 39178825Sdfrstatic int version_flag = 0; 40178825Sdfrstatic int help_flag = 0; 41178825Sdfr 42178825Sdfrstatic struct getargs args[] = { 43178825Sdfr {"version", 0, arg_flag, &version_flag, 44178825Sdfr "print version", NULL }, 45178825Sdfr {"help", 0, arg_flag, &help_flag, 46178825Sdfr NULL, NULL } 47178825Sdfr}; 48178825Sdfr 49178825Sdfrstatic void 50178825Sdfrusage (int ret) 51178825Sdfr{ 52178825Sdfr arg_printusage (args, 53178825Sdfr sizeof(args)/sizeof(*args), 54178825Sdfr NULL, 55178825Sdfr "hostname"); 56178825Sdfr exit (ret); 57178825Sdfr} 58178825Sdfr 59178825Sdfrint 60178825Sdfrmain(int argc, char **argv) 61178825Sdfr{ 62178825Sdfr const char *hostname; 63178825Sdfr krb5_context context; 64178825Sdfr krb5_auth_context ac; 65178825Sdfr krb5_error_code ret; 66178825Sdfr krb5_creds cred; 67178825Sdfr krb5_ccache id; 68178825Sdfr krb5_data data; 69178825Sdfr int optidx = 0; 70178825Sdfr 71178825Sdfr setprogname (argv[0]); 72178825Sdfr 73178825Sdfr if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx)) 74178825Sdfr usage(1); 75178825Sdfr 76178825Sdfr if (help_flag) 77178825Sdfr usage (0); 78178825Sdfr 79178825Sdfr if(version_flag){ 80178825Sdfr print_version(NULL); 81178825Sdfr exit(0); 82178825Sdfr } 83178825Sdfr 84178825Sdfr argc -= optidx; 85178825Sdfr argv += optidx; 86178825Sdfr 87178825Sdfr if (argc < 1) 88178825Sdfr usage(1); 89178825Sdfr 90178825Sdfr hostname = argv[0]; 91178825Sdfr 92178825Sdfr memset(&cred, 0, sizeof(cred)); 93178825Sdfr 94178825Sdfr ret = krb5_init_context(&context); 95178825Sdfr if (ret) 96178825Sdfr errx (1, "krb5_init_context failed: %d", ret); 97178825Sdfr 98178825Sdfr ret = krb5_cc_default(context, &id); 99178825Sdfr if (ret) 100178825Sdfr krb5_err(context, 1, ret, "krb5_cc_default failed: %d", ret); 101178825Sdfr 102178825Sdfr ret = krb5_auth_con_init(context, &ac); 103178825Sdfr if (ret) 104178825Sdfr krb5_err(context, 1, ret, "krb5_auth_con_init failed: %d", ret); 105178825Sdfr 106178825Sdfr krb5_auth_con_addflags(context, ac, 107178825Sdfr KRB5_AUTH_CONTEXT_CLEAR_FORWARDED_CRED, NULL); 108178825Sdfr 109178825Sdfr ret = krb5_cc_get_principal(context, id, &cred.client); 110178825Sdfr if (ret) 111178825Sdfr krb5_err(context, 1, ret, "krb5_cc_get_principal"); 112178825Sdfr 113178825Sdfr ret = krb5_make_principal(context, 114178825Sdfr &cred.server, 115178825Sdfr krb5_principal_get_realm(context, cred.client), 116178825Sdfr KRB5_TGS_NAME, 117178825Sdfr krb5_principal_get_realm(context, cred.client), 118178825Sdfr NULL); 119178825Sdfr if (ret) 120178825Sdfr krb5_err(context, 1, ret, "krb5_make_principal(server)"); 121178825Sdfr 122178825Sdfr ret = krb5_get_forwarded_creds (context, 123178825Sdfr ac, 124178825Sdfr id, 125178825Sdfr KDC_OPT_FORWARDABLE, 126178825Sdfr hostname, 127178825Sdfr &cred, 128178825Sdfr &data); 129178825Sdfr if (ret) 130178825Sdfr krb5_err (context, 1, ret, "krb5_get_forwarded_creds"); 131178825Sdfr 132178825Sdfr krb5_data_free(&data); 133178825Sdfr krb5_free_context(context); 134178825Sdfr 135178825Sdfr return 0; 136178825Sdfr} 137