1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/krb5/os/mk_faddr.c - Generate full address from IP addr and port */
3 /*
4 * Copyright 1995, 2009 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 #include "k5-int.h"
28
29 #ifdef HAVE_NETINET_IN_H
30
31 #include "os-proto.h"
32 #if !defined(_WINSOCKAPI_)
33
34 #include <netinet/in.h>
35 #endif
36
37 krb5_error_code
krb5_make_fulladdr(krb5_context context,krb5_address * kaddr,krb5_address * kport,krb5_address * raddr)38 krb5_make_fulladdr(krb5_context context, krb5_address *kaddr,
39 krb5_address *kport, krb5_address *raddr)
40 {
41 krb5_octet *marshal;
42 krb5_int32 tmp32;
43 krb5_int16 tmp16;
44
45 if (kaddr == NULL || kport == NULL)
46 return EINVAL;
47
48 raddr->length = kaddr->length + kport->length + (4 * sizeof(krb5_int32));
49 if (!(raddr->contents = (krb5_octet *)malloc(raddr->length)))
50 return ENOMEM;
51
52 raddr->addrtype = ADDRTYPE_ADDRPORT;
53 marshal = raddr->contents;
54
55 tmp16 = kaddr->addrtype;
56 *marshal++ = 0x00;
57 *marshal++ = 0x00;
58 store_16_le(tmp16, marshal);
59 marshal += 2;
60
61 tmp32 = kaddr->length;
62 store_32_le(tmp32, marshal);
63 marshal += 4;
64
65 (void) memcpy(marshal, kaddr->contents, kaddr->length);
66 marshal += kaddr->length;
67
68 tmp16 = kport->addrtype;
69 *marshal++ = 0x00;
70 *marshal++ = 0x00;
71 store_16_le(tmp16, marshal);
72 marshal += 2;
73
74 tmp32 = kport->length;
75 store_32_le(tmp32, marshal);
76 marshal += 4;
77
78 (void) memcpy(marshal, kport->contents, kport->length);
79 marshal += kport->length;
80 return 0;
81 }
82 #endif
83