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
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17 * modification or enhancement.
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20 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
21 * OR ANY PART THEREOF.
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24 * or profits or other special, indirect and consequential damages, even if
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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>
48 #include <sys/kernel.h>
49 #include <sys/systm.h>
50 #include <sys/ucred.h>
52 #include <rpc/types.h>
56 #include <rpc/rpc_com.h>
58 /* gids compose part of a credential; there may not be more than 16 of them */
62 * XDR for unix authentication parameters.
65 xdr_authunix_parms(XDR *xdrs, uint32_t *time, struct xucred *cred)
70 char hostbuf[MAXHOSTNAMELEN];
72 if (xdrs->x_op == XDR_ENCODE) {
74 * Restrict name length to 255 according to RFC 1057.
76 getcredhostname(NULL, hostbuf, sizeof(hostbuf));
77 namelen = strlen(hostbuf);
85 if (!xdr_uint32_t(xdrs, time)
86 || !xdr_uint32_t(xdrs, &namelen))
90 * Ignore the hostname on decode.
92 if (xdrs->x_op == XDR_ENCODE) {
93 if (!xdr_opaque(xdrs, hostbuf, namelen))
96 xdr_setpos(xdrs, xdr_getpos(xdrs) + RNDUP(namelen));
99 if (!xdr_uint32_t(xdrs, &cred->cr_uid))
101 if (!xdr_uint32_t(xdrs, &cred->cr_groups[0]))
104 if (xdrs->x_op == XDR_ENCODE) {
105 ngroups = cred->cr_ngroups - 1;
110 if (!xdr_uint32_t(xdrs, &ngroups))
112 for (i = 0; i < ngroups; i++) {
113 if (i + 1 < ngroups_max + 1) {
114 if (!xdr_uint32_t(xdrs, &cred->cr_groups[i + 1]))
117 if (!xdr_uint32_t(xdrs, &junk))
122 if (xdrs->x_op == XDR_DECODE) {
123 if (ngroups + 1 > ngroups_max + 1)
124 cred->cr_ngroups = ngroups_max + 1;
126 cred->cr_ngroups = ngroups + 1;