1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/krb5/os/port2ip.c - Split full address into IP address and port */
4 * Copyright 1991 by the Massachusetts Institute of Technology.
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.
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.
29 #ifdef HAVE_NETINET_IN_H
33 krb5_unpack_full_ipaddr(krb5_context context, const krb5_address *inaddr, krb5_int32 *adr, krb5_int16 *port)
35 unsigned long smushaddr;
36 unsigned short smushport;
38 krb5_addrtype temptype;
41 if (inaddr->addrtype != ADDRTYPE_ADDRPORT)
42 return KRB5_PROG_ATYPE_NOSUPP;
44 if (inaddr->length != sizeof(smushaddr)+ sizeof(smushport) +
45 2*sizeof(temptype) + 2*sizeof(templength))
46 return KRB5_PROG_ATYPE_NOSUPP;
48 marshal = inaddr->contents;
50 (void) memcpy(&temptype, marshal, sizeof(temptype));
51 marshal += sizeof(temptype);
52 if (temptype != htons(ADDRTYPE_INET))
53 return KRB5_PROG_ATYPE_NOSUPP;
55 (void) memcpy(&templength, marshal, sizeof(templength));
56 marshal += sizeof(templength);
57 if (templength != htonl(sizeof(smushaddr)))
58 return KRB5_PROG_ATYPE_NOSUPP;
60 (void) memcpy(&smushaddr, marshal, sizeof(smushaddr));
61 /* leave in net order */
62 marshal += sizeof(smushaddr);
64 (void) memcpy(&temptype, marshal, sizeof(temptype));
65 marshal += sizeof(temptype);
66 if (temptype != htons(ADDRTYPE_IPPORT))
67 return KRB5_PROG_ATYPE_NOSUPP;
69 (void) memcpy(&templength, marshal, sizeof(templength));
70 marshal += sizeof(templength);
71 if (templength != htonl(sizeof(smushport)))
72 return KRB5_PROG_ATYPE_NOSUPP;
74 (void) memcpy(&smushport, marshal, sizeof(smushport));
75 /* leave in net order */
77 *adr = (krb5_int32) smushaddr;
78 *port = (krb5_int16) smushport;