xref: /dragonfly/lib/libc/yp/xdryp.c (revision 6fb88001)
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  * $FreeBSD: src/lib/libc/yp/xdryp.c,v 1.9.2.1 2002/02/15 00:46:53 des Exp $
30  * $DragonFly: src/lib/libc/yp/xdryp.c,v 1.4 2005/11/20 13:24:36 swildner Exp $
31  */
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)(unsigned long, char *, int, char *, int, void *);
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 in case somebody goes looking for it.
46  */
47 typedef struct {
48 	char *dptr;
49 	int  dsize;
50 } datum;
51 
52 bool_t xdr_datum(XDR *, datum *);
53 
54 bool_t
55 xdr_datum(XDR *xdrs, datum *objp)
56 {
57 	if (!xdr_bytes(xdrs, (char **)&objp->dptr, (u_int *)&objp->dsize, YPMAXRECORD)) {
58 		return (FALSE);
59 	}
60 	return (TRUE);
61 }
62 
63 bool_t
64 xdr_ypresp_all_seq(XDR *xdrs, u_long *objp)
65 {
66 	struct ypresp_all out;
67 	u_long status;
68 	char *key, *val;
69 	int r;
70 
71 	bzero(&out, sizeof out);
72 	while (1) {
73 		if (!xdr_ypresp_all(xdrs, &out)) {
74 			xdr_free(xdr_ypresp_all, (char *)&out);
75 			*objp = YP_YPERR;
76 			return (FALSE);
77 		}
78 		if (out.more == 0) {
79 			xdr_free(xdr_ypresp_all, (char *)&out);
80 			*objp = YP_NOMORE;
81 			return (TRUE);
82 		}
83 		status = out.ypresp_all_u.val.stat;
84 		switch (status) {
85 		case YP_TRUE:
86 			key = (char *)malloc(out.ypresp_all_u.val.key.keydat_len + 1);
87 			bcopy(out.ypresp_all_u.val.key.keydat_val, key,
88 				out.ypresp_all_u.val.key.keydat_len);
89 			key[out.ypresp_all_u.val.key.keydat_len] = '\0';
90 			val = (char *)malloc(out.ypresp_all_u.val.val.valdat_len + 1);
91 			bcopy(out.ypresp_all_u.val.val.valdat_val, val,
92 				out.ypresp_all_u.val.val.valdat_len);
93 			val[out.ypresp_all_u.val.val.valdat_len] = '\0';
94 			xdr_free(xdr_ypresp_all, (char *)&out);
95 
96 			r = (*ypresp_allfn)(status,
97 				key, out.ypresp_all_u.val.key.keydat_len,
98 				val, out.ypresp_all_u.val.val.valdat_len,
99 				ypresp_data);
100 			*objp = status;
101 			free(key);
102 			free(val);
103 			if (r)
104 				return (TRUE);
105 			break;
106 		case YP_NOMORE:
107 			xdr_free(xdr_ypresp_all, (char *)&out);
108 			*objp = YP_NOMORE;
109 			return (TRUE);
110 		default:
111 			xdr_free(xdr_ypresp_all, (char *)&out);
112 			*objp = status;
113 			return (TRUE);
114 		}
115 	}
116 }
117