1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate 
23*7c478bd9Sstevel@tonic-gate /*
24*7c478bd9Sstevel@tonic-gate  * Copyright 1994-2002 Sun Microsystems, Inc.  All rights reserved.
25*7c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
26*7c478bd9Sstevel@tonic-gate  */
27*7c478bd9Sstevel@tonic-gate 
28*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
29*7c478bd9Sstevel@tonic-gate 
30*7c478bd9Sstevel@tonic-gate #include <pwd.h>
31*7c478bd9Sstevel@tonic-gate #include <strings.h>
32*7c478bd9Sstevel@tonic-gate #include <sys/mman.h>
33*7c478bd9Sstevel@tonic-gate #include <sys/door.h>
34*7c478bd9Sstevel@tonic-gate #include <errno.h>
35*7c478bd9Sstevel@tonic-gate #include <fcntl.h>
36*7c478bd9Sstevel@tonic-gate #include <synch.h>
37*7c478bd9Sstevel@tonic-gate #include <getxby_door.h>
38*7c478bd9Sstevel@tonic-gate #include "nss.h"
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate #ifdef PIC
41*7c478bd9Sstevel@tonic-gate 
42*7c478bd9Sstevel@tonic-gate static struct hostent *process_gethost(struct hostent *, char *, int, int *,
43*7c478bd9Sstevel@tonic-gate     nsc_data_t *);
44*7c478bd9Sstevel@tonic-gate 
45*7c478bd9Sstevel@tonic-gate struct hostent *
46*7c478bd9Sstevel@tonic-gate _door_gethostbyname_r(const char *name, struct hostent *result, char *buffer,
47*7c478bd9Sstevel@tonic-gate 	int buflen, int *h_errnop)
48*7c478bd9Sstevel@tonic-gate {
49*7c478bd9Sstevel@tonic-gate 
50*7c478bd9Sstevel@tonic-gate 	/*
51*7c478bd9Sstevel@tonic-gate 	 * allocate space on the stack for the nscd to return
52*7c478bd9Sstevel@tonic-gate 	 * host and host alias information
53*7c478bd9Sstevel@tonic-gate 	 */
54*7c478bd9Sstevel@tonic-gate 	union {
55*7c478bd9Sstevel@tonic-gate 		nsc_data_t 	s_d;
56*7c478bd9Sstevel@tonic-gate 		char		s_b[8192];
57*7c478bd9Sstevel@tonic-gate 	} space;
58*7c478bd9Sstevel@tonic-gate 	nsc_data_t	*sptr;
59*7c478bd9Sstevel@tonic-gate 	int		ndata;
60*7c478bd9Sstevel@tonic-gate 	int		adata;
61*7c478bd9Sstevel@tonic-gate 	struct	hostent *resptr = NULL;
62*7c478bd9Sstevel@tonic-gate 
63*7c478bd9Sstevel@tonic-gate 	if ((name == (const char *)NULL) ||
64*7c478bd9Sstevel@tonic-gate 	    (strlen(name) >= (sizeof (space) - sizeof (nsc_data_t)))) {
65*7c478bd9Sstevel@tonic-gate 		errno = ERANGE;
66*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
67*7c478bd9Sstevel@tonic-gate 			*h_errnop = HOST_NOT_FOUND;
68*7c478bd9Sstevel@tonic-gate 		return (NULL);
69*7c478bd9Sstevel@tonic-gate 	}
70*7c478bd9Sstevel@tonic-gate 
71*7c478bd9Sstevel@tonic-gate 	adata = (sizeof (nsc_call_t) + strlen(name) + 1);
72*7c478bd9Sstevel@tonic-gate 	ndata = sizeof (space);
73*7c478bd9Sstevel@tonic-gate 	space.s_d.nsc_call.nsc_callnumber = GETHOSTBYNAME;
74*7c478bd9Sstevel@tonic-gate 	strcpy(space.s_d.nsc_call.nsc_u.name, name);
75*7c478bd9Sstevel@tonic-gate 	sptr = &space.s_d;
76*7c478bd9Sstevel@tonic-gate 
77*7c478bd9Sstevel@tonic-gate 	switch (_nsc_trydoorcall(&sptr, &ndata, &adata)) {
78*7c478bd9Sstevel@tonic-gate 	    case SUCCESS:	/* positive cache hit */
79*7c478bd9Sstevel@tonic-gate 		break;
80*7c478bd9Sstevel@tonic-gate 	    case NOTFOUND:	/* negative cache hit */
81*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
82*7c478bd9Sstevel@tonic-gate 		    *h_errnop = space.s_d.nsc_ret.nsc_errno;
83*7c478bd9Sstevel@tonic-gate 		return (NULL);
84*7c478bd9Sstevel@tonic-gate 	    default:
85*7c478bd9Sstevel@tonic-gate 		return ((struct hostent *)_switch_gethostbyname_r(name,
86*7c478bd9Sstevel@tonic-gate 		    result, buffer, buflen, h_errnop));
87*7c478bd9Sstevel@tonic-gate 	}
88*7c478bd9Sstevel@tonic-gate 	resptr = process_gethost(result, buffer, buflen, h_errnop, sptr);
89*7c478bd9Sstevel@tonic-gate 
90*7c478bd9Sstevel@tonic-gate 	/*
91*7c478bd9Sstevel@tonic-gate 	 * check if doors realloced buffer underneath of us....
92*7c478bd9Sstevel@tonic-gate 	 * munmap or suffer a memory leak
93*7c478bd9Sstevel@tonic-gate 	 */
94*7c478bd9Sstevel@tonic-gate 
95*7c478bd9Sstevel@tonic-gate 	if (sptr != &space.s_d) {
96*7c478bd9Sstevel@tonic-gate 		munmap((char *)sptr, ndata); /* return memory */
97*7c478bd9Sstevel@tonic-gate 	}
98*7c478bd9Sstevel@tonic-gate 
99*7c478bd9Sstevel@tonic-gate 	return (resptr);
100*7c478bd9Sstevel@tonic-gate }
101*7c478bd9Sstevel@tonic-gate 
102*7c478bd9Sstevel@tonic-gate struct hostent *
103*7c478bd9Sstevel@tonic-gate _door_gethostbyaddr_r(const char *addr, int length, int type,
104*7c478bd9Sstevel@tonic-gate 	struct hostent *result, char *buffer, int buflen, int *h_errnop)
105*7c478bd9Sstevel@tonic-gate {
106*7c478bd9Sstevel@tonic-gate 	/*
107*7c478bd9Sstevel@tonic-gate 	 * allocate space on the stack for the nscd to return
108*7c478bd9Sstevel@tonic-gate 	 * host and host alias information
109*7c478bd9Sstevel@tonic-gate 	 */
110*7c478bd9Sstevel@tonic-gate 	union {
111*7c478bd9Sstevel@tonic-gate 		nsc_data_t 	s_d;
112*7c478bd9Sstevel@tonic-gate 		char		s_b[8192];
113*7c478bd9Sstevel@tonic-gate 	} space;
114*7c478bd9Sstevel@tonic-gate 	nsc_data_t 	*sptr;
115*7c478bd9Sstevel@tonic-gate 	int		ndata;
116*7c478bd9Sstevel@tonic-gate 	int		adata;
117*7c478bd9Sstevel@tonic-gate 	struct	hostent *resptr = NULL;
118*7c478bd9Sstevel@tonic-gate 
119*7c478bd9Sstevel@tonic-gate 	if (addr == (const char *)NULL) {
120*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
121*7c478bd9Sstevel@tonic-gate 			*h_errnop = HOST_NOT_FOUND;
122*7c478bd9Sstevel@tonic-gate 		return (NULL);
123*7c478bd9Sstevel@tonic-gate 	}
124*7c478bd9Sstevel@tonic-gate 
125*7c478bd9Sstevel@tonic-gate 	ndata = sizeof (space);
126*7c478bd9Sstevel@tonic-gate 	adata = length + sizeof (nsc_call_t) + 1;
127*7c478bd9Sstevel@tonic-gate 	sptr = &space.s_d;
128*7c478bd9Sstevel@tonic-gate 
129*7c478bd9Sstevel@tonic-gate 	space.s_d.nsc_call.nsc_callnumber = GETHOSTBYADDR;
130*7c478bd9Sstevel@tonic-gate 	space.s_d.nsc_call.nsc_u.addr.a_type = type;
131*7c478bd9Sstevel@tonic-gate 	space.s_d.nsc_call.nsc_u.addr.a_length = length;
132*7c478bd9Sstevel@tonic-gate 	memcpy(space.s_d.nsc_call.nsc_u.addr.a_data, addr, length);
133*7c478bd9Sstevel@tonic-gate 
134*7c478bd9Sstevel@tonic-gate 	switch (_nsc_trydoorcall(&sptr, &ndata, &adata)) {
135*7c478bd9Sstevel@tonic-gate 	    case SUCCESS:	/* positive cache hit */
136*7c478bd9Sstevel@tonic-gate 		break;
137*7c478bd9Sstevel@tonic-gate 	    case NOTFOUND:	/* negative cache hit */
138*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
139*7c478bd9Sstevel@tonic-gate 		    *h_errnop = space.s_d.nsc_ret.nsc_errno;
140*7c478bd9Sstevel@tonic-gate 		return (NULL);
141*7c478bd9Sstevel@tonic-gate 	    default:
142*7c478bd9Sstevel@tonic-gate 		return ((struct hostent *)_switch_gethostbyaddr_r(addr,
143*7c478bd9Sstevel@tonic-gate 		    length, type, result, buffer, buflen, h_errnop));
144*7c478bd9Sstevel@tonic-gate 	}
145*7c478bd9Sstevel@tonic-gate 
146*7c478bd9Sstevel@tonic-gate 	resptr = process_gethost(result, buffer, buflen, h_errnop, sptr);
147*7c478bd9Sstevel@tonic-gate 
148*7c478bd9Sstevel@tonic-gate 	/*
149*7c478bd9Sstevel@tonic-gate 	 * check if doors realloced buffer underneath of us....
150*7c478bd9Sstevel@tonic-gate 	 * munmap it or suffer a memory leak
151*7c478bd9Sstevel@tonic-gate 	 */
152*7c478bd9Sstevel@tonic-gate 
153*7c478bd9Sstevel@tonic-gate 	if (sptr != &space.s_d) {
154*7c478bd9Sstevel@tonic-gate 		munmap((char *)sptr, ndata); /* return memory */
155*7c478bd9Sstevel@tonic-gate 	}
156*7c478bd9Sstevel@tonic-gate 
157*7c478bd9Sstevel@tonic-gate 	return (resptr);
158*7c478bd9Sstevel@tonic-gate 
159*7c478bd9Sstevel@tonic-gate }
160*7c478bd9Sstevel@tonic-gate 
161*7c478bd9Sstevel@tonic-gate #if !defined(_LP64)
162*7c478bd9Sstevel@tonic-gate 
163*7c478bd9Sstevel@tonic-gate static struct hostent *
164*7c478bd9Sstevel@tonic-gate process_gethost(struct hostent *result, char *buffer, int buflen,
165*7c478bd9Sstevel@tonic-gate 	int *h_errnop, nsc_data_t *sptr)
166*7c478bd9Sstevel@tonic-gate {
167*7c478bd9Sstevel@tonic-gate 	int i;
168*7c478bd9Sstevel@tonic-gate 
169*7c478bd9Sstevel@tonic-gate 	char *fixed;
170*7c478bd9Sstevel@tonic-gate 
171*7c478bd9Sstevel@tonic-gate 	fixed = (char *)(((int)buffer +3) & ~3);
172*7c478bd9Sstevel@tonic-gate 	buflen -= fixed - buffer;
173*7c478bd9Sstevel@tonic-gate 	buffer = fixed;
174*7c478bd9Sstevel@tonic-gate 
175*7c478bd9Sstevel@tonic-gate 	if (buflen + sizeof (struct hostent)
176*7c478bd9Sstevel@tonic-gate 	    < sptr->nsc_ret.nsc_bufferbytesused) {
177*7c478bd9Sstevel@tonic-gate 		/*
178*7c478bd9Sstevel@tonic-gate 		 * no enough space allocated by user
179*7c478bd9Sstevel@tonic-gate 		 */
180*7c478bd9Sstevel@tonic-gate 		errno = ERANGE;
181*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
182*7c478bd9Sstevel@tonic-gate 			*h_errnop = HOST_NOT_FOUND;
183*7c478bd9Sstevel@tonic-gate 		return (NULL);
184*7c478bd9Sstevel@tonic-gate 	}
185*7c478bd9Sstevel@tonic-gate 
186*7c478bd9Sstevel@tonic-gate 	memcpy(buffer, sptr->nsc_ret.nsc_u.buff + sizeof (struct hostent),
187*7c478bd9Sstevel@tonic-gate 	    sptr->nsc_ret.nsc_bufferbytesused - sizeof (struct hostent));
188*7c478bd9Sstevel@tonic-gate 
189*7c478bd9Sstevel@tonic-gate 	sptr->nsc_ret.nsc_u.hst.h_name += (int)buffer;
190*7c478bd9Sstevel@tonic-gate 	sptr->nsc_ret.nsc_u.hst.h_aliases =
191*7c478bd9Sstevel@tonic-gate 	    (char **)((char *)sptr->nsc_ret.nsc_u.hst.h_aliases + (int)buffer);
192*7c478bd9Sstevel@tonic-gate 	sptr->nsc_ret.nsc_u.hst.h_addr_list =
193*7c478bd9Sstevel@tonic-gate 	    (char **)((char *)sptr->nsc_ret.nsc_u.hst.h_addr_list +
194*7c478bd9Sstevel@tonic-gate 	    (int)buffer);
195*7c478bd9Sstevel@tonic-gate 	for (i = 0; sptr->nsc_ret.nsc_u.hst.h_aliases[i]; i++) {
196*7c478bd9Sstevel@tonic-gate 		sptr->nsc_ret.nsc_u.hst.h_aliases[i] += (int)buffer;
197*7c478bd9Sstevel@tonic-gate 	}
198*7c478bd9Sstevel@tonic-gate 	for (i = 0; sptr->nsc_ret.nsc_u.hst.h_addr_list[i]; i++) {
199*7c478bd9Sstevel@tonic-gate 		sptr->nsc_ret.nsc_u.hst.h_addr_list[i] += (int)buffer;
200*7c478bd9Sstevel@tonic-gate 	}
201*7c478bd9Sstevel@tonic-gate 
202*7c478bd9Sstevel@tonic-gate 	*result = sptr->nsc_ret.nsc_u.hst;
203*7c478bd9Sstevel@tonic-gate 
204*7c478bd9Sstevel@tonic-gate 	return (result);
205*7c478bd9Sstevel@tonic-gate }
206*7c478bd9Sstevel@tonic-gate 
207*7c478bd9Sstevel@tonic-gate #else /* _LP64 */
208*7c478bd9Sstevel@tonic-gate 
209*7c478bd9Sstevel@tonic-gate #define	RNDUP(buf, n) (((uintptr_t)buf + n - 1l) & ~(n - 1l))
210*7c478bd9Sstevel@tonic-gate 
211*7c478bd9Sstevel@tonic-gate static struct hostent *
212*7c478bd9Sstevel@tonic-gate process_gethost(struct hostent *result, char *buffer, int buflen,
213*7c478bd9Sstevel@tonic-gate 	int *h_errnop, nsc_data_t *sptr)
214*7c478bd9Sstevel@tonic-gate {
215*7c478bd9Sstevel@tonic-gate 	char *fixed;
216*7c478bd9Sstevel@tonic-gate 	char *dest;
217*7c478bd9Sstevel@tonic-gate 	char *start;
218*7c478bd9Sstevel@tonic-gate 	char **aliaseslist;
219*7c478bd9Sstevel@tonic-gate 	char **addrlist;
220*7c478bd9Sstevel@tonic-gate 	int *alias;
221*7c478bd9Sstevel@tonic-gate 	int *address;
222*7c478bd9Sstevel@tonic-gate 	size_t strs;
223*7c478bd9Sstevel@tonic-gate 	int numaliases;
224*7c478bd9Sstevel@tonic-gate 	int numaddrs;
225*7c478bd9Sstevel@tonic-gate 	int i;
226*7c478bd9Sstevel@tonic-gate 
227*7c478bd9Sstevel@tonic-gate 	fixed = (char *)RNDUP(buffer, sizeof (char *));
228*7c478bd9Sstevel@tonic-gate 	buflen -= fixed - buffer;
229*7c478bd9Sstevel@tonic-gate 	buffer = fixed;
230*7c478bd9Sstevel@tonic-gate 
231*7c478bd9Sstevel@tonic-gate 	if (buflen < 0) {
232*7c478bd9Sstevel@tonic-gate 		/* no enough space allocated by user */
233*7c478bd9Sstevel@tonic-gate 		errno = ERANGE;
234*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
235*7c478bd9Sstevel@tonic-gate 			*h_errnop = HOST_NOT_FOUND;
236*7c478bd9Sstevel@tonic-gate 		return (NULL);
237*7c478bd9Sstevel@tonic-gate 	}
238*7c478bd9Sstevel@tonic-gate 
239*7c478bd9Sstevel@tonic-gate 	/* find out whether the user has provided sufficient space */
240*7c478bd9Sstevel@tonic-gate 
241*7c478bd9Sstevel@tonic-gate 	start = sptr->nsc_ret.nsc_u.buff + sizeof (struct hostent32);
242*7c478bd9Sstevel@tonic-gate 	strs = 1 + strlen(sptr->nsc_ret.nsc_u.hst.h_name + start);
243*7c478bd9Sstevel@tonic-gate 	alias = (int *)(start + sptr->nsc_ret.nsc_u.hst.h_aliases);
244*7c478bd9Sstevel@tonic-gate 	for (numaliases = 0; alias[numaliases]; numaliases++)
245*7c478bd9Sstevel@tonic-gate 	    strs += 1 + strlen(start + alias[numaliases]);
246*7c478bd9Sstevel@tonic-gate 	strs = RNDUP(strs, sizeof (int));
247*7c478bd9Sstevel@tonic-gate 	strs += sizeof (char *) * (numaliases + 1);
248*7c478bd9Sstevel@tonic-gate 	address = (int *)(start + sptr->nsc_ret.nsc_u.hst.h_addr_list);
249*7c478bd9Sstevel@tonic-gate 	for (numaddrs = 0; address[numaddrs]; numaddrs++)
250*7c478bd9Sstevel@tonic-gate 	    strs += RNDUP(sptr->nsc_ret.nsc_u.hst.h_length, sizeof (int));
251*7c478bd9Sstevel@tonic-gate 	strs += sizeof (char *) * (numaddrs + 1);
252*7c478bd9Sstevel@tonic-gate 
253*7c478bd9Sstevel@tonic-gate 	if (buflen < strs) {
254*7c478bd9Sstevel@tonic-gate 
255*7c478bd9Sstevel@tonic-gate 		/* no enough space allocated by user */
256*7c478bd9Sstevel@tonic-gate 
257*7c478bd9Sstevel@tonic-gate 		errno = ERANGE;
258*7c478bd9Sstevel@tonic-gate 		if (h_errnop)
259*7c478bd9Sstevel@tonic-gate 			*h_errnop = HOST_NOT_FOUND;
260*7c478bd9Sstevel@tonic-gate 		return (NULL);
261*7c478bd9Sstevel@tonic-gate 	}
262*7c478bd9Sstevel@tonic-gate 
263*7c478bd9Sstevel@tonic-gate 
264*7c478bd9Sstevel@tonic-gate 	/*
265*7c478bd9Sstevel@tonic-gate 	 * allocat the h_aliases list and the h_addr_list first to align 'em.
266*7c478bd9Sstevel@tonic-gate 	 */
267*7c478bd9Sstevel@tonic-gate 
268*7c478bd9Sstevel@tonic-gate 	dest = buffer;
269*7c478bd9Sstevel@tonic-gate 	aliaseslist = (char **)dest;
270*7c478bd9Sstevel@tonic-gate 	dest += sizeof (char *) * (numaliases + 1);
271*7c478bd9Sstevel@tonic-gate 	addrlist = (char **)dest;
272*7c478bd9Sstevel@tonic-gate 	dest += sizeof (char *) * (numaddrs + 1);
273*7c478bd9Sstevel@tonic-gate 
274*7c478bd9Sstevel@tonic-gate 	/* fill out h_name */
275*7c478bd9Sstevel@tonic-gate 
276*7c478bd9Sstevel@tonic-gate 	start = sptr->nsc_ret.nsc_u.buff + sizeof (struct hostent32);
277*7c478bd9Sstevel@tonic-gate 	strcpy(dest, sptr->nsc_ret.nsc_u.hst.h_name + start);
278*7c478bd9Sstevel@tonic-gate 	strs = 1 + strlen(sptr->nsc_ret.nsc_u.hst.h_name + start);
279*7c478bd9Sstevel@tonic-gate 	result->h_name = dest;
280*7c478bd9Sstevel@tonic-gate 	dest += strs;
281*7c478bd9Sstevel@tonic-gate 
282*7c478bd9Sstevel@tonic-gate 	/*
283*7c478bd9Sstevel@tonic-gate 	 * fill out the h_aliases list
284*7c478bd9Sstevel@tonic-gate 	 */
285*7c478bd9Sstevel@tonic-gate 	for (i = 0; i < numaliases; i++) {
286*7c478bd9Sstevel@tonic-gate 		alias = (int *)(start + sptr->nsc_ret.nsc_u.hst.h_aliases);
287*7c478bd9Sstevel@tonic-gate 		strcpy(dest, start + alias[i]);
288*7c478bd9Sstevel@tonic-gate 		strs = 1 + strlen(start + alias[i]);
289*7c478bd9Sstevel@tonic-gate 		aliaseslist[i] = dest;
290*7c478bd9Sstevel@tonic-gate 		dest += strs;
291*7c478bd9Sstevel@tonic-gate 	}
292*7c478bd9Sstevel@tonic-gate 	aliaseslist[i] = 0;	/* null term ptr chain */
293*7c478bd9Sstevel@tonic-gate 
294*7c478bd9Sstevel@tonic-gate 	result->h_aliases = aliaseslist;
295*7c478bd9Sstevel@tonic-gate 
296*7c478bd9Sstevel@tonic-gate 	/*
297*7c478bd9Sstevel@tonic-gate 	 * fill out the h_addr list
298*7c478bd9Sstevel@tonic-gate 	 */
299*7c478bd9Sstevel@tonic-gate 
300*7c478bd9Sstevel@tonic-gate 	dest = (char *)RNDUP(dest, sizeof (int));
301*7c478bd9Sstevel@tonic-gate 
302*7c478bd9Sstevel@tonic-gate 	for (i = 0; i < numaddrs; i++) {
303*7c478bd9Sstevel@tonic-gate 		address = (int *)(start + sptr->nsc_ret.nsc_u.hst.h_addr_list);
304*7c478bd9Sstevel@tonic-gate 		memcpy(dest, start + address[i],
305*7c478bd9Sstevel@tonic-gate 		    sptr->nsc_ret.nsc_u.hst.h_length);
306*7c478bd9Sstevel@tonic-gate 		strs = sptr->nsc_ret.nsc_u.hst.h_length;
307*7c478bd9Sstevel@tonic-gate 		addrlist[i] = dest;
308*7c478bd9Sstevel@tonic-gate 		dest += strs;
309*7c478bd9Sstevel@tonic-gate 		dest = (char *)RNDUP(dest, sizeof (int));
310*7c478bd9Sstevel@tonic-gate 	}
311*7c478bd9Sstevel@tonic-gate 
312*7c478bd9Sstevel@tonic-gate 	addrlist[i] = 0;	/* null term ptr chain */
313*7c478bd9Sstevel@tonic-gate 
314*7c478bd9Sstevel@tonic-gate 	result->h_addr_list = addrlist;
315*7c478bd9Sstevel@tonic-gate 
316*7c478bd9Sstevel@tonic-gate 	result->h_length = sptr->nsc_ret.nsc_u.hst.h_length;
317*7c478bd9Sstevel@tonic-gate 	result->h_addrtype = sptr->nsc_ret.nsc_u.hst.h_addrtype;
318*7c478bd9Sstevel@tonic-gate 
319*7c478bd9Sstevel@tonic-gate 	return (result);
320*7c478bd9Sstevel@tonic-gate }
321*7c478bd9Sstevel@tonic-gate #endif /* _LP64 */
322*7c478bd9Sstevel@tonic-gate #endif /* PIC */
323