1 /* 2 * Copyright (c) 2001-2004 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 14260 2004-09-23 14:45:29Z joda $"); 37 38 int 39 kt_rename(void *opt, 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 47 ret = krb5_parse_name(context, argv[0], &from_princ); 48 if(ret != 0) { 49 krb5_warn(context, ret, "%s", argv[0]); 50 return 1; 51 } 52 53 ret = krb5_parse_name(context, argv[1], &to_princ); 54 if(ret != 0) { 55 krb5_free_principal(context, from_princ); 56 krb5_warn(context, ret, "%s", argv[1]); 57 return 1; 58 } 59 60 if((keytab = ktutil_open_keytab()) == NULL) { 61 krb5_free_principal(context, from_princ); 62 krb5_free_principal(context, to_princ); 63 return 1; 64 } 65 66 ret = krb5_kt_start_seq_get(context, keytab, &cursor); 67 if(ret) { 68 krb5_kt_close(context, keytab); 69 krb5_free_principal(context, from_princ); 70 krb5_free_principal(context, to_princ); 71 return 1; 72 } 73 while(1) { 74 ret = krb5_kt_next_entry(context, keytab, &entry, &cursor); 75 if(ret != 0) { 76 if(ret != KRB5_CC_END && ret != KRB5_KT_END) 77 krb5_warn(context, ret, "getting entry from keytab"); 78 else 79 ret = 0; 80 break; 81 } 82 if(krb5_principal_compare(context, entry.principal, from_princ)) { 83 krb5_free_principal(context, entry.principal); 84 entry.principal = to_princ; 85 ret = krb5_kt_add_entry(context, keytab, &entry); 86 if(ret) { 87 entry.principal = NULL; 88 krb5_kt_free_entry(context, &entry); 89 krb5_warn(context, ret, "adding entry"); 90 break; 91 } 92 entry.principal = from_princ; 93 ret = krb5_kt_remove_entry(context, keytab, &entry); 94 if(ret) { 95 entry.principal = NULL; 96 krb5_kt_free_entry(context, &entry); 97 krb5_warn(context, ret, "removing entry"); 98 break; 99 } 100 entry.principal = NULL; 101 } 102 krb5_kt_free_entry(context, &entry); 103 } 104 krb5_kt_end_seq_get(context, keytab, &cursor); 105 106 krb5_free_principal(context, from_princ); 107 krb5_free_principal(context, to_princ); 108 109 return ret != 0; 110 } 111 112