1/* 2 * Copyright (c) 2006 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 <krb5_locl.h> 35#include "locate_plugin.h" 36 37static krb5_error_code 38resolve_init(krb5_context context, void **ctx) 39{ 40 *ctx = NULL; 41 return 0; 42} 43 44static void 45resolve_fini(void *ctx) 46{ 47} 48 49static krb5_error_code 50resolve_lookup(void *ctx, 51 unsigned long flags, 52 enum locate_service_type service, 53 const char *realm, 54 int domain, 55 int type, 56 int (*add)(void *,int,struct sockaddr *), 57 void *addctx) 58{ 59 struct sockaddr_in s; 60 61 memset(&s, 0, sizeof(s)); 62 63#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN 64 s.sin_len = sizeof(s); 65#endif 66 s.sin_family = AF_INET; 67 s.sin_port = htons(88); 68 s.sin_addr.s_addr = htonl(0x7f000002); 69 70 if (strcmp(realm, "NOTHERE.H5L.SE") == 0) 71 (*add)(addctx, type, (struct sockaddr *)&s); 72 73 return 0; 74} 75 76static krb5_error_code 77resolve_lookup_old(void *ctx, 78 unsigned long flags, 79 enum locate_service_type service, 80 const char *realm, 81 int domain, 82 int type, 83 int (*add)(void *,int,struct sockaddr *), 84 void *addctx) 85{ 86 return resolve_lookup(ctx, KRB5_PLF_ALLOW_HOMEDIR, service, 87 realm, domain, type, add, addctx); 88} 89 90krb5plugin_service_locate_ftable resolve = { 91 KRB5_PLUGIN_LOCATE_VERSION_2, 92 resolve_init, 93 resolve_fini, 94 resolve_lookup_old, 95 resolve_lookup 96 97}; 98 99 100int 101main(int argc, char **argv) 102{ 103 krb5_error_code ret; 104 krb5_context context; 105 krb5_krbhst_handle handle; 106 char host[MAXHOSTNAMELEN]; 107 int found = 0; 108 109 setprogname(argv[0]); 110 111 ret = krb5_init_context(&context); 112 if (ret) 113 errx(1, "krb5_init_contex"); 114 115 ret = krb5_plugin_register(context, PLUGIN_TYPE_DATA, 116 KRB5_PLUGIN_LOCATE, &resolve); 117 if (ret) 118 krb5_err(context, 1, ret, "krb5_plugin_register"); 119 120 121 ret = krb5_krbhst_init_flags(context, 122 "NOTHERE.H5L.SE", 123 KRB5_KRBHST_KDC, 124 0, 125 &handle); 126 if (ret) 127 krb5_err(context, 1, ret, "krb5_krbhst_init_flags"); 128 129 130 while(krb5_krbhst_next_as_string(context, handle, host, sizeof(host)) == 0){ 131 found++; 132 if (strcmp(host, "127.0.0.2") != 0) 133 krb5_errx(context, 1, "wrong address: %s", host); 134 } 135 if (!found) 136 krb5_errx(context, 1, "failed to find host"); 137 138 krb5_krbhst_free(context, handle); 139 140 krb5_free_context(context); 141 return 0; 142} 143