crypto/heimdal-0.6.3/kadmin/del_enctype.c

   1 /*
   2  * Copyright (c) 1999-2001 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 "kadmin_locl.h"
  35
  36 RCSID("$Id: del_enctype.c,v 1.7 2001/04/19 07:26:52 joda Exp $");
  37
  38 /*
  39  * del_enctype principal enctypes...
  40  */
  41
  42 static struct getargs args[] = {
  43     { "help", 'h', arg_flag, NULL }
  44 };
  45
  46 static int num_args = sizeof(args) / sizeof(args[0]);
  47
  48 static void
  49 usage(void)
  50 {
  51     arg_printusage (args, num_args, "del_enctype", "principal enctypes...");
  52 }
  53
  54
  55 int
  56 del_enctype(int argc, char **argv)
  57 {
  58     int optind = 0;
  59     int help_flag = 0;
  60
  61     kadm5_principal_ent_rec princ;
  62     krb5_principal princ_ent = NULL;
  63     krb5_error_code ret;
  64     const char *princ_name;
  65     int i, j, k;
  66     krb5_key_data *new_key_data;
  67     int n_etypes;
  68     krb5_enctype *etypes;
  69
  70     args[0].value = &help_flag;
  71
  72     if(getarg(args, num_args, argc, argv, &optind)) {
  73         usage ();
  74         return 0;
  75     }
  76     if(argc - optind < 2 || help_flag) {
  77         usage ();
  78         return 0;
  79     }
  80
  81     memset (&princ, 0, sizeof(princ));
  82     princ_name = argv[1];
  83     n_etypes   = argc - 2;
  84     etypes     = malloc (n_etypes * sizeof(*etypes));
  85     if (etypes == NULL) {
  86         krb5_warnx (context, "out of memory");
  87         return 0;
  88     }
  89     for (i = 0; i < n_etypes; ++i) {
  90         ret = krb5_string_to_enctype (context, argv[i + 2], &etypes[i]);
  91         if (ret) {
  92             krb5_warnx (context, "bad enctype `%s'", argv[i + 2]);
  93             goto out2;
  94         }
  95     }
  96
  97     ret = krb5_parse_name(context, princ_name, &princ_ent);
  98     if (ret) {
  99         krb5_warn (context, ret, "krb5_parse_name %s", princ_name);
 100         goto out2;
 101     }
 102
 103     ret = kadm5_get_principal(kadm_handle, princ_ent, &princ,
 104                               KADM5_PRINCIPAL | KADM5_KEY_DATA);
 105     if (ret) {
 106         krb5_free_principal (context, princ_ent);
 107         krb5_warnx (context, "no such principal: %s", princ_name);
 108         goto out2;
 109     }
 110
 111     new_key_data   = malloc(princ.n_key_data * sizeof(*new_key_data));
 112     if (new_key_data == NULL) {
 113         krb5_warnx (context, "out of memory");
 114         goto out;
 115     }
 116
 117     for (i = 0, j = 0; i < princ.n_key_data; ++i) {
 118         krb5_key_data *key = &princ.key_data[i];
 119         int docopy = 1;
 120
 121         for (k = 0; k < n_etypes; ++k)
 122             if (etypes[k] == key->key_data_type[0]) {
 123                 docopy = 0;
 124                 break;
 125             }
 126         if (docopy) {
 127             new_key_data[j++] = *key;
 128         } else {
 129             int16_t ignore = 1;
 130
 131             kadm5_free_key_data (kadm_handle, &ignore, key);
 132         }
 133     }
 134
 135     free (princ.key_data);
 136     princ.n_key_data = j;
 137     princ.key_data   = new_key_data;
 138
 139     ret = kadm5_modify_principal (kadm_handle, &princ, KADM5_KEY_DATA);
 140     if (ret)
 141         krb5_warn(context, ret, "kadm5_modify_principal");
 142 out:
 143     krb5_free_principal (context, princ_ent);
 144     kadm5_free_principal_ent(kadm_handle, &princ);
 145 out2:
 146     free (etypes);
 147     return 0;
 148 }