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