1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/krb5/krb/copy_auth.c */
3 /*
4 * Copyright 1990 by the Massachusetts Institute of Technology.
5 * All Rights Reserved.
6 *
7 * Export of this software from the United States of America may
8 * require a specific license from the United States Government.
9 * It is the responsibility of any person or organization contemplating
10 * export to obtain such a license before exporting.
11 *
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of M.I.T. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. Furthermore if you modify this software you must label
20 * your software as modified software and not distribute it in such a
21 * fashion that it might be confused with the original M.I.T. software.
22 * M.I.T. makes no representations about the suitability of
23 * this software for any purpose. It is provided "as is" without express
24 * or implied warranty.
25 */
26 /*
27 * Copyright (c) 2006-2008, Novell, Inc.
28 * All rights reserved.
29 *
30 * Redistribution and use in source and binary forms, with or without
31 * modification, are permitted provided that the following conditions are met:
32 *
33 * * Redistributions of source code must retain the above copyright notice,
34 * this list of conditions and the following disclaimer.
35 * * Redistributions in binary form must reproduce the above copyright
36 * notice, this list of conditions and the following disclaimer in the
37 * documentation and/or other materials provided with the distribution.
38 * * The copyright holder's name is not used to endorse or promote products
39 * derived from this software without specific prior written permission.
40 *
41 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
42 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
45 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
46 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
47 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
48 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
49 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
51 * POSSIBILITY OF SUCH DAMAGE.
52 */
53
54 #include "k5-int.h"
55 #include "int-proto.h"
56
57 /*
58 * Copy an authdata array, with fresh allocation.
59 */
60 krb5_error_code KRB5_CALLCONV
krb5_merge_authdata(krb5_context context,krb5_authdata * const * inauthdat1,krb5_authdata * const * inauthdat2,krb5_authdata *** outauthdat)61 krb5_merge_authdata(krb5_context context,
62 krb5_authdata *const *inauthdat1,
63 krb5_authdata * const *inauthdat2,
64 krb5_authdata ***outauthdat)
65 {
66 krb5_error_code retval;
67 krb5_authdata ** tempauthdat;
68 unsigned int nelems = 0, nelems2 = 0;
69
70 *outauthdat = NULL;
71 if (!inauthdat1 && !inauthdat2) {
72 *outauthdat = 0;
73 return 0;
74 }
75
76 if (inauthdat1)
77 while (inauthdat1[nelems]) nelems++;
78 if (inauthdat2)
79 while (inauthdat2[nelems2]) nelems2++;
80
81 /* one more for a null terminated list */
82 if (!(tempauthdat = (krb5_authdata **) calloc(nelems+nelems2+1,
83 sizeof(*tempauthdat))))
84 return ENOMEM;
85
86 if (inauthdat1) {
87 for (nelems = 0; inauthdat1[nelems]; nelems++) {
88 retval = krb5int_copy_authdatum(context, inauthdat1[nelems],
89 &tempauthdat[nelems]);
90 if (retval) {
91 krb5_free_authdata(context, tempauthdat);
92 return retval;
93 }
94 }
95 }
96
97 if (inauthdat2) {
98 for (nelems2 = 0; inauthdat2[nelems2]; nelems2++) {
99 retval = krb5int_copy_authdatum(context, inauthdat2[nelems2],
100 &tempauthdat[nelems++]);
101 if (retval) {
102 krb5_free_authdata(context, tempauthdat);
103 return retval;
104 }
105 }
106 }
107
108 *outauthdat = tempauthdat;
109 return 0;
110 }
111
112 krb5_error_code KRB5_CALLCONV
krb5_copy_authdata(krb5_context context,krb5_authdata * const * in_authdat,krb5_authdata *** out)113 krb5_copy_authdata(krb5_context context,
114 krb5_authdata *const *in_authdat, krb5_authdata ***out)
115 {
116 return krb5_merge_authdata(context, in_authdat, NULL, out);
117 }
118