1 /* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /* lib/krb5/os/genaddrs.c */
4 * Copyright 1995 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.
30 #if !defined(_WINSOCKAPI_)
31 #include <netinet/in.h>
35 krb5_address addr, port;
38 #define SET(TARG, THING, TYPE) \
39 ((TARG).contents = (krb5_octet *) &(THING), \
40 (TARG).length = sizeof (THING), \
41 (TARG).addrtype = (TYPE))
43 static void *cvtaddr (struct sockaddr_storage *a, struct addrpair *ap)
45 switch (ss2sa(a)->sa_family) {
47 SET (ap->port, ss2sin(a)->sin_port, ADDRTYPE_IPPORT);
48 SET (ap->addr, ss2sin(a)->sin_addr, ADDRTYPE_INET);
52 SET (ap->port, ss2sin6(a)->sin6_port, ADDRTYPE_IPPORT);
53 if (IN6_IS_ADDR_V4MAPPED (&ss2sin6(a)->sin6_addr)) {
54 ap->addr.addrtype = ADDRTYPE_INET;
55 ap->addr.contents = 12 + (krb5_octet *) &ss2sin6(a)->sin6_addr;
58 SET (ap->addr, ss2sin6(a)->sin6_addr, ADDRTYPE_INET6);
66 krb5_error_code KRB5_CALLCONV
67 krb5_auth_con_genaddrs(krb5_context context, krb5_auth_context auth_context, int infd, int flags)
69 krb5_error_code retval;
74 SOCKET fd = (SOCKET) infd;
75 struct addrpair laddrs, raddrs;
77 #ifdef HAVE_NETINET_IN_H
78 struct sockaddr_storage lsaddr, rsaddr;
79 GETSOCKNAME_ARG3_TYPE ssize;
81 ssize = sizeof(struct sockaddr_storage);
82 if ((flags & KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR) ||
83 (flags & KRB5_AUTH_CONTEXT_GENERATE_LOCAL_ADDR)) {
84 if ((retval = getsockname(fd, (GETSOCKNAME_ARG2_TYPE *) &lsaddr,
88 if (cvtaddr (&lsaddr, &laddrs)) {
90 if (flags & KRB5_AUTH_CONTEXT_GENERATE_LOCAL_FULL_ADDR)
95 return KRB5_PROG_ATYPE_NOSUPP;
101 ssize = sizeof(struct sockaddr_storage);
102 if ((flags & KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR) ||
103 (flags & KRB5_AUTH_CONTEXT_GENERATE_REMOTE_ADDR)) {
104 if ((retval = getpeername(fd, (GETPEERNAME_ARG2_TYPE *) &rsaddr,
108 if (cvtaddr (&rsaddr, &raddrs)) {
109 raddr = &raddrs.addr;
110 if (flags & KRB5_AUTH_CONTEXT_GENERATE_REMOTE_FULL_ADDR)
111 rport = &raddrs.port;
115 return KRB5_PROG_ATYPE_NOSUPP;
121 if (!(retval = krb5_auth_con_setaddrs(context, auth_context, laddr, raddr)))
122 return (krb5_auth_con_setports(context, auth_context, lport, rport));
125 return KRB5_PROG_ATYPE_NOSUPP;