xref: /netbsd-src/crypto/external/bsd/heimdal/dist/lib/krb5/misc.c (revision ba65fde2d7fefa7d39838fa5fa855e62bd606b5e)
1 /*	$NetBSD: misc.c,v 1.1.1.1 2011/04/13 18:15:35 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 1997 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of the Institute nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include "krb5_locl.h"
37 
38 KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
39 _krb5_s4u2self_to_checksumdata(krb5_context context,
40 			       const PA_S4U2Self *self,
41 			       krb5_data *data)
42 {
43     krb5_error_code ret;
44     krb5_ssize_t ssize;
45     krb5_storage *sp;
46     size_t size;
47     int i;
48 
49     sp = krb5_storage_emem();
50     if (sp == NULL) {
51 	krb5_clear_error_message(context);
52 	return ENOMEM;
53     }
54     krb5_storage_set_flags(sp, KRB5_STORAGE_BYTEORDER_LE);
55     ret = krb5_store_int32(sp, self->name.name_type);
56     if (ret)
57 	goto out;
58     for (i = 0; i < self->name.name_string.len; i++) {
59 	size = strlen(self->name.name_string.val[i]);
60 	ssize = krb5_storage_write(sp, self->name.name_string.val[i], size);
61 	if (ssize != size) {
62 	    ret = ENOMEM;
63 	    goto out;
64 	}
65     }
66     size = strlen(self->realm);
67     ssize = krb5_storage_write(sp, self->realm, size);
68     if (ssize != size) {
69 	ret = ENOMEM;
70 	goto out;
71     }
72     size = strlen(self->auth);
73     ssize = krb5_storage_write(sp, self->auth, size);
74     if (ssize != size) {
75 	ret = ENOMEM;
76 	goto out;
77     }
78 
79     ret = krb5_storage_to_data(sp, data);
80     krb5_storage_free(sp);
81     return ret;
82 
83 out:
84     krb5_clear_error_message(context);
85     return ret;
86 }
87 
88 krb5_error_code
89 krb5_enomem(krb5_context context)
90 {
91     krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
92     return ENOMEM;
93 }
94