2 * Copyright (c) 1997-2004 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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11 * notice, this list of conditions and the following disclaimer.
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14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
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.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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34 #include "ktutil_locl.h"
36 RCSID("$Id: copy.c 14260 2004-09-23 14:45:29Z joda $");
40 compare_keyblock(const krb5_keyblock *a, const krb5_keyblock *b)
42 if(a->keytype != b->keytype ||
43 a->keyvalue.length != b->keyvalue.length ||
44 memcmp(a->keyvalue.data, b->keyvalue.data, a->keyvalue.length) != 0)
50 kt_copy_int (const char *from, const char *to)
53 krb5_keytab src_keytab, dst_keytab;
54 krb5_kt_cursor cursor;
55 krb5_keytab_entry entry, dummy;
57 ret = krb5_kt_resolve (context, from, &src_keytab);
59 krb5_warn (context, ret, "resolving src keytab `%s'", from);
63 ret = krb5_kt_resolve (context, to, &dst_keytab);
65 krb5_kt_close (context, src_keytab);
66 krb5_warn (context, ret, "resolving dst keytab `%s'", to);
70 ret = krb5_kt_start_seq_get (context, src_keytab, &cursor);
72 krb5_warn (context, ret, "krb5_kt_start_seq_get %s", keytab_string);
77 fprintf(stderr, "copying %s to %s\n", from, to);
79 while((ret = krb5_kt_next_entry(context, src_keytab,
80 &entry, &cursor)) == 0) {
83 ret = krb5_unparse_name (context, entry.principal, &name_str);
85 krb5_warn(context, ret, "krb5_unparse_name");
86 name_str = NULL; /* XXX */
88 ret = krb5_enctype_to_string(context, entry.keyblock.keytype, &etype_str);
90 krb5_warn(context, ret, "krb5_enctype_to_string");
91 etype_str = NULL; /* XXX */
93 ret = krb5_kt_get_entry(context, dst_keytab,
96 entry.keyblock.keytype,
99 /* this entry is already in the new keytab, so no need to
100 copy it; if the keyblocks are not the same, something
101 is weird, so complain about that */
102 if(!compare_keyblock(&entry.keyblock, &dummy.keyblock)) {
103 krb5_warnx(context, "entry with different keyvalue "
104 "already exists for %s, keytype %s, kvno %d",
105 name_str, etype_str, entry.vno);
107 krb5_kt_free_entry(context, &dummy);
108 krb5_kt_free_entry (context, &entry);
112 } else if(ret != KRB5_KT_NOTFOUND) {
113 krb5_warn (context, ret, "%s: fetching %s/%s/%u",
114 to, name_str, etype_str, entry.vno);
115 krb5_kt_free_entry (context, &entry);
121 fprintf (stderr, "copying %s, keytype %s, kvno %d\n", name_str,
122 etype_str, entry.vno);
123 ret = krb5_kt_add_entry (context, dst_keytab, &entry);
124 krb5_kt_free_entry (context, &entry);
126 krb5_warn (context, ret, "%s: adding %s/%s/%u",
127 to, name_str, etype_str, entry.vno);
135 krb5_kt_end_seq_get (context, src_keytab, &cursor);
138 krb5_kt_close (context, src_keytab);
139 krb5_kt_close (context, dst_keytab);
144 kt_copy (void *opt, int argc, char **argv)
146 return kt_copy_int(argv[0], argv[1]);
150 srvconv(struct srvconvert_options *opt, int argc, char **argv)
152 char kt4[1024], kt5[1024];
154 snprintf(kt4, sizeof(kt4), "krb4:%s", opt->srvtab_string);
156 if(keytab_string != NULL)
157 return kt_copy_int(kt4, keytab_string);
159 krb5_kt_default_modify_name(context, kt5, sizeof(kt5));
160 return kt_copy_int(kt4, kt5);
164 srvcreate(struct srvcreate_options *opt, int argc, char **argv)
166 char kt4[1024], kt5[1024];
168 snprintf(kt4, sizeof(kt4), "krb4:%s", opt->srvtab_string);
170 if(keytab_string != NULL)
171 return kt_copy_int(keytab_string, kt4);
173 krb5_kt_default_name(context, kt5, sizeof(kt5));
174 return kt_copy_int(kt5, kt4);