crypto/dist/heimdal/admin/ktutil.c

   1 /*
   2  * Copyright (c) 1997-2004 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 "ktutil_locl.h"
  35 #include <err.h>
  36
  37 __RCSID("$Heimdal: ktutil.c 15585 2005-07-07 21:52:04Z lha $"
  38         "$NetBSD$");
  39
  40 static int help_flag;
  41 static int version_flag;
  42 int verbose_flag;
  43 char *keytab_string;
  44 static char keytab_buf[256];
  45
  46 static struct getargs args[] = {
  47     {
  48         "version",
  49         0,
  50         arg_flag,
  51         &version_flag,
  52         NULL,
  53         NULL
  54     },
  55     {
  56         "help",
  57         'h',
  58         arg_flag,
  59         &help_flag,
  60         NULL,
  61         NULL
  62     },
  63     {
  64         "keytab",
  65         'k',
  66         arg_string,
  67         &keytab_string,
  68         "keytab",
  69         "keytab to operate on"
  70     },
  71     {
  72         "verbose",
  73         'v',
  74         arg_flag,
  75         &verbose_flag,
  76         "verbose",
  77         "run verbosely"
  78     }
  79 };
  80
  81 static int num_args = sizeof(args) / sizeof(args[0]);
  82
  83 krb5_context context;
  84
  85 krb5_keytab
  86 ktutil_open_keytab(void)
  87 {
  88     krb5_error_code ret;
  89     krb5_keytab keytab;
  90     if (keytab_string == NULL) {
  91         ret = krb5_kt_default_name (context, keytab_buf, sizeof(keytab_buf));
  92         if (ret) {
  93             krb5_warn(context, ret, "krb5_kt_default_name");
  94             return NULL;
  95         }
  96         keytab_string = keytab_buf;
  97     }
  98     ret = krb5_kt_resolve(context, keytab_string, &keytab);
  99     if (ret) {
 100         krb5_warn(context, ret, "resolving keytab %s", keytab_string);
 101         return NULL;
 102     }
 103     if (verbose_flag)
 104         fprintf (stderr, "Using keytab %s\n", keytab_string);
 105
 106     return keytab;
 107 }
 108
 109 int
 110 help(void *opt, int argc, char **argv)
 111 {
 112     if(argc == 0) {
 113         sl_help(commands, 1, argv - 1 /* XXX */);
 114     } else {
 115         SL_cmd *c = sl_match (commands, argv[0], 0);
 116         if(c == NULL) {
 117             fprintf (stderr, "No such command: %s. "
 118                      "Try \"help\" for a list of commands\n",
 119                      argv[0]);
 120         } else {
 121             if(c->func) {
 122                 char *fake[] = { NULL, "--help", NULL };
 123                 fake[0] = argv[0];
 124                 (*c->func)(2, fake);
 125                 fprintf(stderr, "\n");
 126             }
 127             if(c->help && *c->help)
 128                 fprintf (stderr, "%s\n", c->help);
 129             if((++c)->name && c->func == NULL) {
 130                 int f = 0;
 131                 fprintf (stderr, "Synonyms:");
 132                 while (c->name && c->func == NULL) {
 133                     fprintf (stderr, "%s%s", f ? ", " : " ", (c++)->name);
 134                     f = 1;
 135                 }
 136                 fprintf (stderr, "\n");
 137             }
 138         }
 139     }
 140     return 0;
 141 }
 142
 143 static void
 144 usage(int status)
 145 {
 146     arg_printusage(args, num_args, NULL, "command");
 147     exit(status);
 148 }
 149
 150 int
 151 main(int argc, char **argv)
 152 {
 153     int optidx = 0;
 154     krb5_error_code ret;
 155     setprogname(argv[0]);
 156     ret = krb5_init_context(&context);
 157     if (ret)
 158         errx (1, "krb5_init_context failed: %d", ret);
 159     if(getarg(args, num_args, argc, argv, &optidx))
 160         usage(1);
 161     if(help_flag)
 162         usage(0);
 163     if(version_flag) {
 164         print_version(NULL);
 165         exit(0);
 166     }
 167     argc -= optidx;
 168     argv += optidx;
 169     if(argc == 0)
 170         usage(1);
 171     ret = sl_command(commands, argc, argv);
 172     if(ret == -1)
 173         krb5_warnx (context, "unrecognized command: %s", argv[0]);
 174     return ret;
 175 }