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