crypto/external/bsd/heimdal/dist/kuser/kdestroy.c

   1 /*      $NetBSD: kdestroy.c,v 1.1.1.2 2014/04/24 12:45:28 pettai Exp $  */
   2
   3 /*
   4  * Copyright (c) 1997 - 2000, 2003 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 "kuser_locl.h"
  37
  38 static const char *cache;
  39 static const char *credential;
  40 static int help_flag;
  41 static int version_flag;
  42 #ifndef NO_AFS
  43 static int unlog_flag = 1;
  44 #endif
  45 static int dest_tkt_flag = 1;
  46 static int all_flag = 0;
  47
  48 struct getargs args[] = {
  49     { "credential",     0,   arg_string, rk_UNCONST(&credential),
  50       "remove one credential", "principal" },
  51     { "cache",          'c', arg_string, rk_UNCONST(&cache), "cache to destroy", "cache" },
  52     { "all",            'A', arg_flag, &all_flag, "destroy all caches", NULL },
  53 #ifndef NO_AFS
  54     { "unlog",          0,   arg_negative_flag, &unlog_flag,
  55       "do not destroy tokens", NULL },
  56 #endif
  57     { "delete-v4",      0,   arg_negative_flag, &dest_tkt_flag,
  58       "do not destroy v4 tickets", NULL },
  59     { "version",        0,   arg_flag, &version_flag, NULL, NULL },
  60     { "help",           'h', arg_flag, &help_flag, NULL, NULL}
  61 };
  62
  63 int num_args = sizeof(args) / sizeof(args[0]);
  64
  65 static void
  66 usage (int status)
  67 {
  68     arg_printusage (args, num_args, NULL, "");
  69     exit (status);
  70 }
  71
  72 int
  73 main (int argc, char **argv)
  74 {
  75     krb5_error_code ret;
  76     krb5_context context;
  77     krb5_ccache  ccache;
  78     int optidx = 0;
  79     int exit_val = 0;
  80
  81     setprogname (argv[0]);
  82
  83     if(getarg(args, num_args, argc, argv, &optidx))
  84         usage(1);
  85
  86     if (help_flag)
  87         usage (0);
  88
  89     if(version_flag){
  90         print_version(NULL);
  91         exit(0);
  92     }
  93
  94     argc -= optidx;
  95     argv += optidx;
  96
  97     if (argc != 0)
  98         usage (1);
  99
 100     ret = krb5_init_context (&context);
 101     if (ret)
 102         errx (1, "krb5_init_context failed: %d", ret);
 103
 104     if (all_flag) {
 105         krb5_cccol_cursor cursor;
 106
 107         ret = krb5_cccol_cursor_new (context, &cursor);
 108         if (ret)
 109             krb5_err(context, 1, ret, "krb5_cccol_cursor_new");
 110
 111         while (krb5_cccol_cursor_next (context, cursor, &ccache) == 0 && ccache != NULL) {
 112
 113             ret = krb5_cc_destroy (context, ccache);
 114             if (ret) {
 115                 krb5_warn(context, ret, "krb5_cc_destroy");
 116                 exit_val = 1;
 117             }
 118         }
 119         krb5_cccol_cursor_free(context, &cursor);
 120
 121     } else {
 122         if(cache == NULL) {
 123             ret = krb5_cc_default(context, &ccache);
 124             if (ret)
 125                 krb5_err(context, 1, ret, "krb5_cc_default");
 126         } else {
 127             ret =  krb5_cc_resolve(context,
 128                                    cache,
 129                                    &ccache);
 130             if (ret)
 131                 krb5_err(context, 1, ret, "krb5_cc_resolve");
 132         }
 133
 134         if (ret == 0) {
 135             if (credential) {
 136                 krb5_creds mcred;
 137
 138                 krb5_cc_clear_mcred(&mcred);
 139
 140                 ret = krb5_parse_name(context, credential, &mcred.server);
 141                 if (ret)
 142                     krb5_err(context, 1, ret,
 143                              "Can't parse principal %s", credential);
 144
 145                 ret = krb5_cc_remove_cred(context, ccache, 0, &mcred);
 146                 if (ret)
 147                     krb5_err(context, 1, ret,
 148                              "Failed to remove principal %s", credential);
 149
 150                 krb5_cc_close(context, ccache);
 151                 krb5_free_principal(context, mcred.server);
 152                 krb5_free_context(context);
 153                 return 0;
 154             }
 155
 156             ret = krb5_cc_destroy (context, ccache);
 157             if (ret) {
 158                 krb5_warn(context, ret, "krb5_cc_destroy");
 159                 exit_val = 1;
 160             }
 161         }
 162     }
 163
 164     krb5_free_context (context);
 165
 166 #ifndef NO_AFS
 167     if (unlog_flag && k_hasafs ()) {
 168         if (k_unlog ())
 169             exit_val = 1;
 170     }
 171 #endif
 172
 173     return exit_val;
 174 }