1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote
16 *    products derived from this software without specific prior written
17 *    permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <rpc/rpc.h>
33#include <rpcsvc/yp.h>
34#include <stdlib.h>
35#include <string.h>
36
37extern int (*ypresp_allfn)(u_long, char *, int, char *, int, void *);
38extern void *ypresp_data;
39
40/*
41 * I'm leaving the xdr_datum() function in purely for backwards
42 * compatibility. yplib.c doesn't actually use it, but it's listed
43 * in yp_prot.h as being available, so it's probably a good idea to
44 * leave it in case somebody goes looking for it.
45 */
46typedef struct {
47	char *dptr;
48	int  dsize;
49} datum;
50
51bool_t
52xdr_datum(XDR *xdrs, datum *objp)
53{
54	if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) {
55		return (FALSE);
56	}
57	return (TRUE);
58}
59
60bool_t
61xdr_ypresp_all_seq(XDR *xdrs, u_long *objp)
62{
63	struct ypresp_all out;
64	u_long status;
65	char *key, *val;
66	int r;
67
68	bzero(&out, sizeof out);
69	while (1) {
70		if (!xdr_ypresp_all(xdrs, &out)) {
71			xdr_free((xdrproc_t)xdr_ypresp_all, &out);
72			*objp = YP_YPERR;
73			return (FALSE);
74		}
75		if (out.more == 0) {
76			xdr_free((xdrproc_t)xdr_ypresp_all, &out);
77			*objp = YP_NOMORE;
78			return (TRUE);
79		}
80		status = out.ypresp_all_u.val.stat;
81		switch (status) {
82		case YP_TRUE:
83			key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1);
84			if (key == NULL) {
85				xdr_free((xdrproc_t)xdr_ypresp_all, &out);
86				*objp = YP_YPERR;
87				return (FALSE);
88			}
89			bcopy(out.ypresp_all_u.val.key.keydat_val, key,
90				out.ypresp_all_u.val.key.keydat_len);
91			key[out.ypresp_all_u.val.key.keydat_len] = '\0';
92			val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1);
93			if (val == NULL) {
94				free(key);
95				xdr_free((xdrproc_t)xdr_ypresp_all, &out);
96				*objp = YP_YPERR;
97				return (FALSE);
98			}
99			bcopy(out.ypresp_all_u.val.val.valdat_val, val,
100				out.ypresp_all_u.val.val.valdat_len);
101			val[out.ypresp_all_u.val.val.valdat_len] = '\0';
102			xdr_free((xdrproc_t)xdr_ypresp_all, &out);
103
104			r = (*ypresp_allfn)(status,
105				key, out.ypresp_all_u.val.key.keydat_len,
106				val, out.ypresp_all_u.val.val.valdat_len,
107				ypresp_data);
108			*objp = status;
109			free(key);
110			free(val);
111			if (r)
112				return (TRUE);
113			break;
114		case YP_NOMORE:
115			xdr_free((xdrproc_t)xdr_ypresp_all, &out);
116			*objp = YP_NOMORE;
117			return (TRUE);
118		default:
119			xdr_free((xdrproc_t)xdr_ypresp_all, &out);
120			*objp = status;
121			return (TRUE);
122		}
123	}
124}
125