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
37 extern int (*ypresp_allfn)(u_long, char *, int, char *, int, void *);
38 extern 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 */
46 typedef struct {
47 char *dptr;
48 int dsize;
49 } datum;
50
51 bool_t
xdr_datum(XDR * xdrs,datum * objp)52 xdr_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
60 bool_t
xdr_ypresp_all_seq(XDR * xdrs,u_long * objp)61 xdr_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