kadmin/cpw.c

   1 /*
   2  * Copyright (c) 1997, 1998 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. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed by Kungliga Tekniska
  20  *      Högskolan and its contributors.
  21  *
  22  * 4. Neither the name of the Institute nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #include "kadmin_locl.h"
  40
  41 RCSID("$Id$");
  42
  43 struct cpw_entry_data {
  44     int random;
  45     char *password;
  46 };
  47
  48 static struct getargs args[] = {
  49     { "random-key",     'r',    arg_flag,       NULL, "set random key" },
  50     { "password",       'p',    arg_string,     NULL, "princial's password" },
  51 };
  52
  53 static int num_args = sizeof(args) / sizeof(args[0]);
  54
  55 static void
  56 usage(void)
  57 {
  58     arg_printusage(args, num_args, "cpw", "principal...");
  59 }
  60
  61 static int
  62 do_cpw_entry(krb5_principal principal, void *data)
  63 {
  64     char *pw, pwbuf[128];
  65     struct cpw_entry_data *e = data;
  66     krb5_error_code ret = 0;
  67
  68     pw = e->password;
  69     if(e->random == 0){
  70         if(pw == NULL){
  71             char *princ_name;
  72             char *prompt;
  73
  74             krb5_unparse_name(context, principal, &princ_name);
  75             asprintf(&prompt, "%s's Password: ", princ_name);
  76             free (princ_name);
  77             ret = des_read_pw_string(pwbuf, sizeof(pwbuf), prompt, 1);
  78             free (prompt);
  79             if(ret){
  80                 return 0; /* XXX error code? */
  81             }
  82             pw = pwbuf;
  83         }
  84         if(ret == 0)
  85             ret = kadm5_chpass_principal(kadm_handle, principal, pw);
  86         memset(pwbuf, 0, sizeof(pwbuf));
  87     }else{
  88         int i;
  89         krb5_keyblock *keys;
  90         int num_keys;
  91         ret = kadm5_randkey_principal(kadm_handle, principal, &keys, &num_keys);
  92         if(ret)
  93             return ret;
  94         for(i = 0; i < num_keys; i++)
  95             krb5_free_keyblock_contents(context, &keys[i]);
  96         free(keys);
  97     }
  98     return ret;
  99 }
 100
 101 int
 102 cpw_entry(int argc, char **argv)
 103 {
 104     krb5_error_code ret;
 105     int i;
 106     int optind = 0;
 107     struct cpw_entry_data data;
 108
 109     data.random = 0;
 110     data.password = NULL;
 111
 112     args[0].value = &data.random;
 113     args[1].value = &data.password;
 114     if(getarg(args, num_args, argc, argv, &optind)){
 115         usage();
 116         return 0;
 117     }
 118     argc -= optind;
 119     argv += optind;
 120
 121     for(i = 0; i < argc; i++)
 122         ret = foreach_principal(argv[i], do_cpw_entry, &data);
 123
 124     return 0;
 125 }
 126