1 /* $NetBSD: authunix_prot.c,v 1.12 2000/01/22 22:19:17 mycroft Exp $ */
4 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
5 * unrestricted use provided that this legend is included on all tape
6 * media and as a part of the software program in whole or part. Users
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9 * program developed by the user.
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13 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
15 * Sun RPC is provided with no support and without any obligation on the
16 * part of Sun Microsystems, Inc. to assist in its use, correction,
17 * modification or enhancement.
19 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
23 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
24 * or profits or other special, indirect and consequential damages, even if
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27 * Sun Microsystems, Inc.
29 * Mountain View, California 94043
32 #if defined(LIBC_SCCS) && !defined(lint)
33 static char *sccsid2 = "@(#)authunix_prot.c 1.15 87/08/11 Copyr 1984 Sun Micro";
34 static char *sccsid = "@(#)authunix_prot.c 2.1 88/07/29 4.0 RPCSRC";
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
41 * XDR for UNIX style authentication parameters for RPC
43 * Copyright (C) 1984, Sun Microsystems, Inc.
46 #include <sys/param.h>
47 #include <sys/kernel.h>
48 #include <sys/systm.h>
49 #include <sys/ucred.h>
51 #include <rpc/types.h>
55 #include <rpc/rpc_com.h>
57 /* gids compose part of a credential; there may not be more than 16 of them */
61 * XDR for unix authentication parameters.
64 xdr_authunix_parms(XDR *xdrs, uint32_t *time, struct xucred *cred)
70 if (xdrs->x_op == XDR_ENCODE) {
72 * Restrict name length to 255 according to RFC 1057.
74 namelen = strlen(hostname);
82 if (!xdr_uint32_t(xdrs, time)
83 || !xdr_uint32_t(xdrs, &namelen))
87 * Ignore the hostname on decode.
89 if (xdrs->x_op == XDR_ENCODE) {
90 if (!xdr_opaque(xdrs, hostname, namelen))
93 xdr_setpos(xdrs, xdr_getpos(xdrs) + RNDUP(namelen));
96 if (!xdr_uint32_t(xdrs, &cred->cr_uid))
98 if (!xdr_uint32_t(xdrs, &cred->cr_groups[0]))
101 if (xdrs->x_op == XDR_ENCODE) {
102 ngroups = cred->cr_ngroups - 1;
107 if (!xdr_uint32_t(xdrs, &ngroups))
109 for (i = 0; i < ngroups; i++) {
110 if (i + 1 < NGROUPS) {
111 if (!xdr_uint32_t(xdrs, &cred->cr_groups[i + 1]))
114 if (!xdr_uint32_t(xdrs, &junk))
119 if (xdrs->x_op == XDR_DECODE) {
120 if (ngroups + 1 > NGROUPS)
121 cred->cr_ngroups = NGROUPS;
123 cred->cr_ngroups = ngroups + 1;