crypto/external/bsd/heimdal/dist/admin/rename.c

   1 /*      $NetBSD: rename.c,v 1.1.1.2 2014/04/24 12:45:26 pettai Exp $    */
   2
   3 /*
   4  * Copyright (c) 2001-2004 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "ktutil_locl.h"
  37
  38 __RCSID("NetBSD");
  39
  40 int
  41 kt_rename(struct rename_options *opt, int argc, char **argv)
  42 {
  43     krb5_error_code ret = 0;
  44     krb5_keytab_entry entry;
  45     krb5_keytab keytab;
  46     krb5_kt_cursor cursor;
  47     krb5_principal from_princ, to_princ;
  48
  49     ret = krb5_parse_name(context, argv[0], &from_princ);
  50     if(ret != 0) {
  51         krb5_warn(context, ret, "%s", argv[0]);
  52         return 1;
  53     }
  54
  55     ret = krb5_parse_name(context, argv[1], &to_princ);
  56     if(ret != 0) {
  57         krb5_free_principal(context, from_princ);
  58         krb5_warn(context, ret, "%s", argv[1]);
  59         return 1;
  60     }
  61
  62     if((keytab = ktutil_open_keytab()) == NULL) {
  63         krb5_free_principal(context, from_princ);
  64         krb5_free_principal(context, to_princ);
  65         return 1;
  66     }
  67
  68     ret = krb5_kt_start_seq_get(context, keytab, &cursor);
  69     if(ret) {
  70         krb5_kt_close(context, keytab);
  71         krb5_free_principal(context, from_princ);
  72         krb5_free_principal(context, to_princ);
  73         return 1;
  74     }
  75     while(1) {
  76         ret = krb5_kt_next_entry(context, keytab, &entry, &cursor);
  77         if(ret != 0) {
  78             if(ret != KRB5_CC_END && ret != KRB5_KT_END)
  79                 krb5_warn(context, ret, "getting entry from keytab");
  80             else
  81                 ret = 0;
  82             break;
  83         }
  84         if(krb5_principal_compare(context, entry.principal, from_princ)) {
  85             krb5_free_principal(context, entry.principal);
  86             entry.principal = to_princ;
  87             ret = krb5_kt_add_entry(context, keytab, &entry);
  88             if(ret) {
  89                 entry.principal = NULL;
  90                 krb5_kt_free_entry(context, &entry);
  91                 krb5_warn(context, ret, "adding entry");
  92                 break;
  93             }
  94             if (opt->delete_flag) {
  95                 entry.principal = from_princ;
  96                 ret = krb5_kt_remove_entry(context, keytab, &entry);
  97                 if(ret) {
  98                     entry.principal = NULL;
  99                     krb5_kt_free_entry(context, &entry);
 100                     krb5_warn(context, ret, "removing entry");
 101                     break;
 102                 }
 103             }
 104             entry.principal = NULL;
 105         }
 106         krb5_kt_free_entry(context, &entry);
 107     }
 108     krb5_kt_end_seq_get(context, keytab, &cursor);
 109
 110     krb5_free_principal(context, from_princ);
 111     krb5_free_principal(context, to_princ);
 112
 113     return ret != 0;
 114 }
 115