1/*
2 * lib/krb5/krb/copy_data.c
3 *
4 * Copyright 1990,1991 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 * krb5_copy_data()
28 */
29
30#include "k5-int.h"
31
32/*
33 * Copy a data structure, with fresh allocation.
34 */
35/*ARGSUSED*/
36krb5_error_code KRB5_CALLCONV
37krb5_copy_data(krb5_context context, const krb5_data *indata, krb5_data **outdata)
38{
39    krb5_data *tempdata;
40
41    if (!indata) {
42	*outdata = 0;
43	return 0;
44    }
45
46    if (!(tempdata = (krb5_data *)malloc(sizeof(*tempdata))))
47	return ENOMEM;
48
49    tempdata->length = indata->length;
50    if (tempdata->length) {
51	if (!(tempdata->data = malloc(tempdata->length))) {
52	    krb5_xfree(tempdata);
53	    return ENOMEM;
54	}
55	memcpy((char *)tempdata->data, (char *)indata->data, tempdata->length);
56    } else
57	tempdata->data = 0;
58    tempdata->magic = KV5M_DATA;
59    *outdata = tempdata;
60    return 0;
61}
62
63krb5_error_code
64krb5int_copy_data_contents(krb5_context context, const krb5_data *indata, krb5_data *outdata)
65{
66    if (!indata) {
67	return EINVAL;
68    }
69
70    outdata->length = indata->length;
71    if (outdata->length) {
72	if (!(outdata->data = malloc(outdata->length))) {
73	    return ENOMEM;
74	}
75	memcpy((char *)outdata->data, (char *)indata->data, outdata->length);
76    } else
77	outdata->data = 0;
78    outdata->magic = KV5M_DATA;
79
80    return 0;
81}
82