admin/remove.c

   1 /*
   2  * Copyright (c) 1997 - 2000 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 "ktutil_locl.h"
  35
  36 RCSID("$Id$");
  37
  38 int
  39 kt_remove(int argc, char **argv)
  40 {
  41     krb5_error_code ret;
  42     krb5_keytab_entry entry;
  43     char *principal_string = NULL;
  44     krb5_principal principal = NULL;
  45     int kvno = 0;
  46     char *keytype_string = NULL;
  47     krb5_enctype enctype = 0;
  48     int help_flag = 0;
  49     struct getargs args[] = {
  50         { "principal", 'p', arg_string, NULL, "principal to remove" },
  51         { "kvno", 'V', arg_integer, NULL, "key version to remove" },
  52         { "enctype", 'e', arg_string, NULL, "enctype to remove" },
  53         { "help", 'h', arg_flag, NULL }
  54     };
  55     int num_args = sizeof(args) / sizeof(args[0]);
  56     int optind = 0;
  57     int i = 0;
  58     args[i++].value = &principal_string;
  59     args[i++].value = &kvno;
  60     args[i++].value = &keytype_string;
  61     args[i++].value = &help_flag;
  62     if(getarg(args, num_args, argc, argv, &optind)) {
  63         arg_printusage(args, num_args, "ktutil remove", "");
  64         return 0;
  65     }
  66     if(help_flag) {
  67         arg_printusage(args, num_args, "ktutil remove", "");
  68         return 0;
  69     }
  70     if(principal_string) {
  71         ret = krb5_parse_name(context, principal_string, &principal);
  72         if(ret) {
  73             krb5_warn(context, ret, "%s", principal_string);
  74             return 0;
  75         }
  76     }
  77     if(keytype_string) {
  78         ret = krb5_string_to_enctype(context, keytype_string, &enctype);
  79         if(ret) {
  80             int t;
  81             if(sscanf(keytype_string, "%d", &t) == 1)
  82                 enctype = t;
  83             else {
  84                 krb5_warn(context, ret, "%s", keytype_string);
  85                 if(principal)
  86                     krb5_free_principal(context, principal);
  87                 return 0;
  88             }
  89         }
  90     }
  91     if (!principal && !enctype && !kvno) {
  92         krb5_warnx(context,
  93                    "You must give at least one of "
  94                    "principal, enctype or kvno.");
  95         return 0;
  96     }
  97     entry.principal = principal;
  98     entry.keyblock.keytype = enctype;
  99     entry.vno = kvno;
 100     ret = krb5_kt_remove_entry(context, keytab, &entry);
 101     if(ret)
 102         krb5_warn(context, ret, "remove");
 103     if(principal)
 104         krb5_free_principal(context, principal);
 105     return 0;
 106 }
 107