lib/krb5/test_kuserok.c

   1 /*
   2  * Copyright (c) 2005 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 KTH nor the names of its contributors may be
  18  *    used to endorse or promote products derived from this software without
  19  *    specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  24  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
  32
  33 #include "krb5_locl.h"
  34 #include <getarg.h>
  35 #include <err.h>
  36
  37 static int version_flag = 0;
  38 static int help_flag    = 0;
  39
  40 static struct getargs args[] = {
  41     {"version", 0,      arg_flag,       &version_flag,
  42      "print version", NULL },
  43     {"help",    0,      arg_flag,       &help_flag,
  44      NULL, NULL }
  45 };
  46
  47 static void
  48 usage (int ret)
  49 {
  50     arg_printusage (args,
  51                     sizeof(args)/sizeof(*args),
  52                     NULL,
  53                     "principal luser");
  54     exit (ret);
  55 }
  56
  57 int
  58 main(int argc, char **argv)
  59 {
  60     krb5_context context;
  61     krb5_error_code ret;
  62     krb5_principal principal;
  63     char *p;
  64     int o = 0;
  65
  66     setprogname(argv[0]);
  67
  68     if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &o))
  69         usage(1);
  70
  71     if (help_flag)
  72         usage (0);
  73
  74     if(version_flag){
  75         print_version(NULL);
  76         exit(0);
  77     }
  78
  79     argc -= o;
  80     argv += o;
  81
  82     ret = krb5_init_context(&context);
  83     if (ret)
  84         errx (1, "krb5_init_context failed: %d", ret);
  85
  86     if (argc != 2)
  87         usage(1);
  88
  89     ret = krb5_parse_name(context, argv[0], &principal);
  90     if (ret)
  91         krb5_err(context, 1, ret, "krb5_parse_name");
  92
  93     ret = krb5_unparse_name(context, principal, &p);
  94     if (ret)
  95         krb5_err(context, 1, ret, "krb5_unparse_name");
  96
  97     ret = krb5_kuserok(context, principal, argv[1]);
  98
  99     krb5_free_context(context);
 100
 101     printf("%s is %sallowed to login as %s\n", p, ret ? "" : "NOT ", argv[1]);
 102
 103     return 0;
 104 }