1/*
2 * lib/krb5/krb/copy_tick.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_ticket()
28 */
29
30#include "k5-int.h"
31
32static krb5_error_code
33krb5_copy_enc_tkt_part(krb5_context context, const krb5_enc_tkt_part *partfrom, krb5_enc_tkt_part **partto)
34{
35    krb5_error_code retval;
36    krb5_enc_tkt_part *tempto;
37
38    if (!(tempto = (krb5_enc_tkt_part *)malloc(sizeof(*tempto))))
39	return ENOMEM;
40    *tempto = *partfrom;
41    retval = krb5_copy_keyblock(context, partfrom->session,
42				&tempto->session);
43    if (retval) {
44	krb5_xfree(tempto);
45	return retval;
46    }
47    retval = krb5_copy_principal(context, partfrom->client, &tempto->client);
48    if (retval) {
49	krb5_free_keyblock(context, tempto->session);
50	krb5_xfree(tempto);
51	return retval;
52    }
53    tempto->transited = partfrom->transited;
54    if (tempto->transited.tr_contents.length == 0) {
55	tempto->transited.tr_contents.data = 0;
56    } else {
57	tempto->transited.tr_contents.data =
58	  malloc(partfrom->transited.tr_contents.length);
59	if (!tempto->transited.tr_contents.data) {
60	    krb5_free_principal(context, tempto->client);
61	    krb5_free_keyblock(context, tempto->session);
62	    krb5_xfree(tempto);
63	    return ENOMEM;
64	}
65	memcpy((char *)tempto->transited.tr_contents.data,
66	       (char *)partfrom->transited.tr_contents.data,
67	       partfrom->transited.tr_contents.length);
68    }
69
70    retval = krb5_copy_addresses(context, partfrom->caddrs, &tempto->caddrs);
71    if (retval) {
72	krb5_xfree(tempto->transited.tr_contents.data);
73	krb5_free_principal(context, tempto->client);
74	krb5_free_keyblock(context, tempto->session);
75	krb5_xfree(tempto);
76	return retval;
77    }
78    if (partfrom->authorization_data) {
79	retval = krb5_copy_authdata(context, partfrom->authorization_data,
80				    &tempto->authorization_data);
81	if (retval) {
82	    krb5_free_addresses(context, tempto->caddrs);
83	    krb5_xfree(tempto->transited.tr_contents.data);
84	    krb5_free_principal(context, tempto->client);
85	    krb5_free_keyblock(context, tempto->session);
86	    krb5_xfree(tempto);
87	    return retval;
88	}
89    }
90    *partto = tempto;
91    return 0;
92}
93
94krb5_error_code KRB5_CALLCONV
95krb5_copy_ticket(krb5_context context, const krb5_ticket *from, krb5_ticket **pto)
96{
97    krb5_error_code retval;
98    krb5_ticket *tempto;
99    krb5_data *scratch;
100
101    if (!(tempto = (krb5_ticket *)malloc(sizeof(*tempto))))
102	return ENOMEM;
103    *tempto = *from;
104    retval = krb5_copy_principal(context, from->server, &tempto->server);
105    if (retval) {
106	krb5_xfree(tempto);
107	return retval;
108    }
109    retval = krb5_copy_data(context, &from->enc_part.ciphertext, &scratch);
110    if (retval) {
111	krb5_free_principal(context, tempto->server);
112	krb5_xfree(tempto);
113	return retval;
114    }
115    tempto->enc_part.ciphertext = *scratch;
116    krb5_xfree(scratch);
117    retval = krb5_copy_enc_tkt_part(context, from->enc_part2, &tempto->enc_part2);
118    if (retval) {
119	krb5_xfree(tempto->enc_part.ciphertext.data);
120	krb5_free_principal(context, tempto->server);
121	krb5_xfree(tempto);
122	return retval;
123    }
124    *pto = tempto;
125    return 0;
126}
127