1 /* 2 * Copyright (c) 2001 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 "ktutil_locl.h" 35 36 RCSID("$Id: rename.c,v 1.1 2001/07/23 10:17:32 joda Exp $"); 37 38 int 39 kt_rename(int argc, char **argv) 40 { 41 krb5_error_code ret = 0; 42 krb5_keytab_entry entry; 43 krb5_keytab keytab; 44 krb5_kt_cursor cursor; 45 krb5_principal from_princ, to_princ; 46 int help_flag = 0; 47 48 struct getargs args[] = { 49 { "help", 'h', arg_flag, NULL } 50 }; 51 int num_args = sizeof(args) / sizeof(args[0]); 52 int optind = 0; 53 int i = 0; 54 55 args[i++].value = &help_flag; 56 if(getarg(args, num_args, argc, argv, &optind)) { 57 arg_printusage(args, num_args, "ktutil rename", "from to"); 58 return 1; 59 } 60 if(help_flag) { 61 arg_printusage(args, num_args, "ktutil rename", "from to"); 62 return 0; 63 } 64 argv += optind; 65 argc -= optind; 66 if(argc != 2) { 67 arg_printusage(args, num_args, "ktutil rename", "from to"); 68 return 0; 69 } 70 71 ret = krb5_parse_name(context, argv[0], &from_princ); 72 if(ret != 0) { 73 krb5_warn(context, ret, "%s", argv[0]); 74 return 0; 75 } 76 77 ret = krb5_parse_name(context, argv[1], &to_princ); 78 if(ret != 0) { 79 krb5_free_principal(context, from_princ); 80 krb5_warn(context, ret, "%s", argv[1]); 81 return 0; 82 } 83 84 if((keytab = ktutil_open_keytab()) == NULL) { 85 krb5_free_principal(context, from_princ); 86 krb5_free_principal(context, to_princ); 87 return 1; 88 } 89 90 ret = krb5_kt_start_seq_get(context, keytab, &cursor); 91 if(ret) { 92 krb5_kt_close(context, keytab); 93 krb5_free_principal(context, from_princ); 94 krb5_free_principal(context, to_princ); 95 return 1; 96 } 97 while(1) { 98 ret = krb5_kt_next_entry(context, keytab, &entry, &cursor); 99 if(ret != 0) { 100 if(ret != KRB5_CC_END && ret != KRB5_KT_END) 101 krb5_warn(context, ret, "getting entry from keytab"); 102 break; 103 } 104 if(krb5_principal_compare(context, entry.principal, from_princ)) { 105 krb5_free_principal(context, entry.principal); 106 entry.principal = to_princ; 107 ret = krb5_kt_add_entry(context, keytab, &entry); 108 if(ret) { 109 entry.principal = NULL; 110 krb5_kt_free_entry(context, &entry); 111 krb5_warn(context, ret, "adding entry"); 112 break; 113 } 114 entry.principal = from_princ; 115 ret = krb5_kt_remove_entry(context, keytab, &entry); 116 if(ret) { 117 entry.principal = NULL; 118 krb5_kt_free_entry(context, &entry); 119 krb5_warn(context, ret, "removing entry"); 120 break; 121 } 122 entry.principal = NULL; 123 } 124 krb5_kt_free_entry(context, &entry); 125 } 126 krb5_kt_end_seq_get(context, keytab, &cursor); 127 128 krb5_free_principal(context, from_princ); 129 krb5_free_principal(context, to_princ); 130 131 return 0; 132 } 133 134