1 /*
2 * lib/krb5/krb/copy_creds.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_cred()
28 */
29
30 #include "k5-int.h"
31
32 /*
33 * Copy credentials, allocating fresh storage where needed.
34 */
35
36 krb5_error_code KRB5_CALLCONV
krb5_copy_creds(krb5_context context,const krb5_creds * incred,krb5_creds ** outcred)37 krb5_copy_creds(krb5_context context, const krb5_creds *incred, krb5_creds **outcred)
38 {
39 krb5_creds *tempcred;
40 krb5_error_code retval;
41 krb5_data *scratch;
42
43 if (!(tempcred = (krb5_creds *)malloc(sizeof(*tempcred))))
44 return ENOMEM;
45
46 *tempcred = *incred;
47 retval = krb5_copy_principal(context, incred->client, &tempcred->client);
48 if (retval)
49 goto cleanlast;
50 retval = krb5_copy_principal(context, incred->server, &tempcred->server);
51 if (retval)
52 goto cleanclient;
53 retval = krb5_copy_keyblock_contents(context, &incred->keyblock,
54 &tempcred->keyblock);
55 if (retval)
56 goto cleanserver;
57 retval = krb5_copy_addresses(context, incred->addresses, &tempcred->addresses);
58 if (retval)
59 goto cleanblock;
60 retval = krb5_copy_data(context, &incred->ticket, &scratch);
61 if (retval)
62 goto cleanaddrs;
63 tempcred->ticket = *scratch;
64 krb5_xfree(scratch);
65 retval = krb5_copy_data(context, &incred->second_ticket, &scratch);
66 if (retval)
67 goto cleanticket;
68
69 tempcred->second_ticket = *scratch;
70 krb5_xfree(scratch);
71
72 retval = krb5_copy_authdata(context, incred->authdata,&tempcred->authdata);
73 if (retval)
74 goto clearticket;
75
76 *outcred = tempcred;
77 return 0;
78
79 clearticket:
80 memset(tempcred->ticket.data,0,tempcred->ticket.length);
81 cleanticket:
82 free(tempcred->ticket.data);
83 cleanaddrs:
84 krb5_free_addresses(context, tempcred->addresses);
85 cleanblock:
86 krb5_xfree(tempcred->keyblock.contents);
87 cleanserver:
88 krb5_free_principal(context, tempcred->server);
89 cleanclient:
90 krb5_free_principal(context, tempcred->client);
91 cleanlast:
92 krb5_xfree(tempcred);
93 return retval;
94 }
95