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*/
36 krb5_error_code KRB5_CALLCONV
krb5_copy_data(krb5_context context,const krb5_data * indata,krb5_data ** outdata)37 krb5_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
63 krb5_error_code
krb5int_copy_data_contents(krb5_context context,const krb5_data * indata,krb5_data * outdata)64 krb5int_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