crypto/heimdal-0.6.3/admin/list.c

   1 /*
   2  * Copyright (c) 1997 - 2002 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
  36 RCSID("$Id: list.c,v 1.10 2002/01/30 10:12:21 joda Exp $");
  37
  38 static int help_flag;
  39 static int list_keys;
  40 static int list_timestamp;
  41
  42 static struct getargs args[] = {
  43     { "help",      'h', arg_flag, &help_flag },
  44     { "keys",      0,   arg_flag, &list_keys, "show key value" },
  45     { "timestamp", 0,   arg_flag, &list_timestamp, "show timestamp" },
  46 };
  47
  48 static int num_args = sizeof(args) / sizeof(args[0]);
  49
  50 struct key_info {
  51     char *version;
  52     char *etype;
  53     char *principal;
  54     char *timestamp;
  55     char *key;
  56     struct key_info *next;
  57 };
  58
  59 static int
  60 do_list(const char *keytab_string)
  61 {
  62     krb5_error_code ret;
  63     krb5_keytab keytab;
  64     krb5_keytab_entry entry;
  65     krb5_kt_cursor cursor;
  66     struct key_info *ki, **kie = &ki, *kp;
  67
  68     int max_version = sizeof("Vno") - 1;
  69     int max_etype = sizeof("Type") - 1;
  70     int max_principal = sizeof("Principal") - 1;
  71     int max_timestamp = sizeof("Date") - 1;
  72     int max_key = sizeof("Key") - 1;
  73
  74     /* XXX specialcase the ANY type */
  75     if(strncasecmp(keytab_string, "ANY:", 4) == 0) {
  76         int flag = 0;
  77         char buf[1024];
  78         keytab_string += 4;
  79         while (strsep_copy((const char**)&keytab_string, ",",
  80                            buf, sizeof(buf)) != -1) {
  81             if(flag)
  82                 printf("\n");
  83             do_list(buf);
  84             flag = 1;
  85         }
  86         return 0;
  87     }
  88
  89     ret = krb5_kt_resolve(context, keytab_string, &keytab);
  90     if (ret) {
  91         krb5_warn(context, ret, "resolving keytab %s", keytab_string);
  92         return 0;
  93     }
  94
  95     ret = krb5_kt_start_seq_get(context, keytab, &cursor);
  96     if(ret){
  97         krb5_warn(context, ret, "krb5_kt_start_seq_get %s", keytab_string);
  98         goto out;
  99     }
 100
 101     printf ("%s:\n\n", keytab_string);
 102
 103     while((ret = krb5_kt_next_entry(context, keytab, &entry, &cursor)) == 0){
 104 #define CHECK_MAX(F) if(max_##F < strlen(kp->F)) max_##F = strlen(kp->F)
 105
 106         kp = malloc(sizeof(*kp));
 107         if (kp == NULL) {
 108             krb5_kt_free_entry(context, &entry);
 109             krb5_kt_end_seq_get(context, keytab, &cursor);
 110             krb5_warn(context, ret, "malloc failed");
 111             goto out;
 112         }
 113
 114         asprintf(&kp->version, "%d", entry.vno);
 115         CHECK_MAX(version);
 116         ret = krb5_enctype_to_string(context,
 117                                      entry.keyblock.keytype, &kp->etype);
 118         if (ret != 0)
 119             asprintf(&kp->etype, "unknown (%d)", entry.keyblock.keytype);
 120         CHECK_MAX(etype);
 121         krb5_unparse_name(context, entry.principal, &kp->principal);
 122         CHECK_MAX(principal);
 123         if (list_timestamp) {
 124             char tstamp[256];
 125
 126             krb5_format_time(context, entry.timestamp,
 127                              tstamp, sizeof(tstamp), FALSE);
 128
 129             kp->timestamp = strdup(tstamp);
 130             CHECK_MAX(timestamp);
 131         }
 132         if(list_keys) {
 133             int i;
 134             kp->key = malloc(2 * entry.keyblock.keyvalue.length + 1);
 135             for(i = 0; i < entry.keyblock.keyvalue.length; i++)
 136                 snprintf(kp->key + 2 * i, 3, "%02x",
 137                          ((unsigned char*)entry.keyblock.keyvalue.data)[i]);
 138             CHECK_MAX(key);
 139         }
 140         *kie = kp;
 141         kie = &kp->next;
 142         krb5_kt_free_entry(context, &entry);
 143     }
 144     *kie = NULL; /* termiate list */
 145     ret = krb5_kt_end_seq_get(context, keytab, &cursor);
 146
 147     printf("%-*s  %-*s  %-*s", max_version, "Vno",
 148            max_etype, "Type",
 149            max_principal, "Principal");
 150     if(list_timestamp)
 151         printf("  %-*s", max_timestamp, "Date");
 152     if(list_keys)
 153         printf("  %s", "Key");
 154     printf("\n");
 155
 156     for(kp = ki; kp; ) {
 157         printf("%*s  %-*s  %-*s", max_version, kp->version,
 158                max_etype, kp->etype,
 159                max_principal, kp->principal);
 160         if(list_timestamp)
 161             printf("  %-*s", max_timestamp, kp->timestamp);
 162         if(list_keys)
 163             printf("  %s", kp->key);
 164         printf("\n");
 165
 166         /* free entries */
 167         free(kp->version);
 168         free(kp->etype);
 169         free(kp->principal);
 170         if(list_timestamp)
 171             free(kp->timestamp);
 172         if(list_keys) {
 173             memset(kp->key, 0, strlen(kp->key));
 174             free(kp->key);
 175         }
 176         ki = kp;
 177         kp = kp->next;
 178         free(ki);
 179     }
 180 out:
 181     krb5_kt_close(context, keytab);
 182     return 0;
 183 }
 184
 185 int
 186 kt_list(int argc, char **argv)
 187 {
 188     krb5_error_code ret;
 189     int optind = 0;
 190     char kt[1024];
 191
 192     if(verbose_flag)
 193         list_timestamp = 1;
 194
 195     if(getarg(args, num_args, argc, argv, &optind)){
 196         arg_printusage(args, num_args, "ktutil list", "");
 197         return 1;
 198     }
 199     if(help_flag){
 200         arg_printusage(args, num_args, "ktutil list", "");
 201         return 0;
 202     }
 203
 204     if (keytab_string == NULL) {
 205         if((ret = krb5_kt_default_name(context, kt, sizeof(kt))) != 0) {
 206             krb5_warn(context, ret, "getting default keytab name");
 207             return 0;
 208         }
 209         keytab_string = kt;
 210     }
 211     do_list(keytab_string);
 212     return 0;
 213 }