crypto/heimdal-0.6.3/kuser/kgetcred.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 "kuser_locl.h"
  35
  36 RCSID("$Id: kgetcred.c,v 1.5 2001/02/20 01:44:51 assar Exp $");
  37
  38 static char *etype_str;
  39 static int version_flag;
  40 static int help_flag;
  41
  42 struct getargs args[] = {
  43     { "enctype",        'e', arg_string, &etype_str,
  44       "encryption type to use", "enctype"},
  45     { "version",        0,   arg_flag, &version_flag },
  46     { "help",           0,   arg_flag, &help_flag }
  47 };
  48
  49 static void
  50 usage (int ret)
  51 {
  52     arg_printusage (args,
  53                     sizeof(args)/sizeof(*args),
  54                     NULL,
  55                     "service");
  56     exit (ret);
  57 }
  58
  59 int
  60 main(int argc, char **argv)
  61 {
  62     krb5_error_code ret;
  63     krb5_context context;
  64     krb5_ccache cache;
  65     krb5_creds in, *out;
  66     int optind = 0;
  67
  68     setprogname (argv[0]);
  69
  70     ret = krb5_init_context (&context);
  71     if (ret)
  72         errx(1, "krb5_init_context failed: %d", ret);
  73
  74     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optind))
  75         usage(1);
  76
  77     if (help_flag)
  78         usage (0);
  79
  80     if(version_flag) {
  81         print_version(NULL);
  82         exit(0);
  83     }
  84
  85     argc -= optind;
  86     argv += optind;
  87
  88     if (argc != 1)
  89         usage (1);
  90
  91     ret = krb5_cc_default(context, &cache);
  92     if (ret)
  93         krb5_err (context, 1, ret, "krb5_cc_default");
  94
  95     memset(&in, 0, sizeof(in));
  96
  97     if (etype_str) {
  98         krb5_enctype enctype;
  99
 100         ret = krb5_string_to_enctype(context, etype_str, &enctype);
 101         if (ret)
 102             krb5_errx (context, 1, "unrecognized enctype: %s", etype_str);
 103         in.session.keytype = enctype;
 104     }
 105
 106     ret = krb5_cc_get_principal(context, cache, &in.client);
 107     if (ret)
 108         krb5_err (context, 1, ret, "krb5_cc_get_principal");
 109
 110     ret = krb5_parse_name(context, argv[0], &in.server);
 111     if (ret)
 112         krb5_err (context, 1, ret, "krb5_parse_name %s", argv[0]);
 113
 114     in.times.endtime = 0;
 115     ret = krb5_get_credentials(context, 0, cache, &in, &out);
 116     if (ret)
 117         krb5_err (context, 1, ret, "krb5_get_credentials");
 118
 119     krb5_free_creds_contents(context, out);
 120     return 0;
 121 }