kuser/kdestroy.c

   1 /*
   2  * Copyright (c) 1997 - 2000, 2003 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 "kuser_locl.h"
  35 RCSID("$Id$");
  36
  37 static const char *cache;
  38 static const char *credential;
  39 static int help_flag;
  40 static int version_flag;
  41 #ifndef NO_AFS
  42 static int unlog_flag = 1;
  43 #endif
  44 static int dest_tkt_flag = 1;
  45
  46 struct getargs args[] = {
  47     { "credential",     0,   arg_string, &credential,
  48       "remove one credential", "principal" },
  49     { "cache",          'c', arg_string, &cache, "cache to destroy", "cache" },
  50 #ifndef NO_AFS
  51     { "unlog",          0,   arg_negative_flag, &unlog_flag,
  52       "do not destroy tokens", NULL },
  53 #endif
  54     { "delete-v4",      0,   arg_negative_flag, &dest_tkt_flag,
  55       "do not destroy v4 tickets", NULL },
  56     { "version",        0,   arg_flag, &version_flag, NULL, NULL },
  57     { "help",           'h', arg_flag, &help_flag, NULL, NULL}
  58 };
  59
  60 int num_args = sizeof(args) / sizeof(args[0]);
  61
  62 static void
  63 usage (int status)
  64 {
  65     arg_printusage (args, num_args, NULL, "");
  66     exit (status);
  67 }
  68
  69 int
  70 main (int argc, char **argv)
  71 {
  72     krb5_error_code ret;
  73     krb5_context context;
  74     krb5_ccache  ccache;
  75     int optidx = 0;
  76     int exit_val = 0;
  77
  78     setprogname (argv[0]);
  79
  80     if(getarg(args, num_args, argc, argv, &optidx))
  81         usage(1);
  82
  83     if (help_flag)
  84         usage (0);
  85
  86     if(version_flag){
  87         print_version(NULL);
  88         exit(0);
  89     }
  90
  91     argc -= optidx;
  92     argv += optidx;
  93
  94     if (argc != 0)
  95         usage (1);
  96
  97     ret = krb5_init_context (&context);
  98     if (ret)
  99         errx (1, "krb5_init_context failed: %d", ret);
 100
 101     if(cache == NULL) {
 102         cache = krb5_cc_default_name(context);
 103         if (cache == NULL) {
 104             warnx ("krb5_cc_default_name: %s", krb5_get_err_text(context, ret));
 105             exit(1);
 106         }
 107     }
 108
 109     ret =  krb5_cc_resolve(context,
 110                            cache,
 111                            &ccache);
 112
 113     if (ret == 0) {
 114         if (credential) {
 115             krb5_creds mcred;
 116
 117             krb5_cc_clear_mcred(&mcred);
 118
 119             ret = krb5_parse_name(context, credential, &mcred.server);
 120             if (ret)
 121                 krb5_err(context, 1, ret,
 122                          "Can't parse principal %s", credential);
 123
 124             ret = krb5_cc_remove_cred(context, ccache, 0, &mcred);
 125             if (ret)
 126                 krb5_err(context, 1, ret,
 127                          "Failed to remove principal %s", credential);
 128
 129             krb5_cc_close(context, ccache);
 130             krb5_free_principal(context, mcred.server);
 131             krb5_free_context(context);
 132             return 0;
 133         }
 134
 135         ret = krb5_cc_destroy (context, ccache);
 136         if (ret) {
 137             warnx ("krb5_cc_destroy: %s", krb5_get_err_text(context, ret));
 138             exit_val = 1;
 139         }
 140     } else {
 141         warnx ("krb5_cc_resolve(%s): %s", cache,
 142                krb5_get_err_text(context, ret));
 143         exit_val = 1;
 144     }
 145
 146     krb5_free_context (context);
 147
 148 #ifndef NO_AFS
 149     if (unlog_flag && k_hasafs ()) {
 150         if (k_unlog ())
 151             exit_val = 1;
 152     }
 153 #endif
 154
 155     return exit_val;
 156 }